Journal articles on the topic 'Hole drift length'

Abstract. Electron holes are suggested to be an important source for generation of electron-cyclotron maser radiation. We demonstrate that electron holes generated in a ring-horseshoe distribution in the auroral-kilometric radiation source region have the capacity to emit band-limited radiation. The radiation is calculated in the proper frame of a circular model hole and shown to be strictly perpendicular in this frame. Its bandwidth under auroral conditions is of the order of ~1 kHz, which is a reasonable value. It is also shown that much of the drift of fine structure in the radiation can be interpreted as Doppler shift. Estimates based on data are in good agreement with theory. Growth and absorption rates have been obtained for the emitted radiation. However, the growth rate of a single hole obtained under conservative conditions is small, too small for reproducing the observed fine structure flux. Trapping of radiation inside the hole for the hole's lifetime helps amplifying the radiation additionally but introduces other problems. This entire set of questions is discussed at length and compared to radiation from the global horseshoe distribution. The interior of the hole produces a weak absorption at slightly higher frequency than emission. The absorptivity is roughly two orders of magnitude below the growth rate of the radiation thus being weak even when the emission and absorption bands overlap. Transforming to the stationary observer's frame it is found that the radiation becomes oblique against the magnetic field. For approaching holes the radiated frequencies may even exceed the local electron cyclotron frequency.

AbstractThe photovoltaic materials in solar cells take multiple tasks including absorbing lights, separating the light-induced electron-hole pairs, and consequently transport charges to the corresponding metallic electrodes. These tasks, however, are often mutually conflicting. In particular, a thick PV layer is desired to absorb enough light for creating sufficient light-induced charges, while a thin PV layer is also desired to shorten the charge transport path length insider the PV layer in order to suppress recombination. Using dye-sensitized solar cells as an exploratory platform, this dilemma is mitigated using a non-traditional 3-dimensional (3-D) highly doped fluorinated SnO2 (FTO, core)-TiO2(shell) nanostructured photoanodes. The FTO core serves as conductive core for low-resistance and drift-assisted electron extraction. The thin, conformal and low-doped TiO2 shell layer is coated by atomic layer deposition, which provides a large area for anchoring dyes and maintains a large resistance against recombination.

Compared with silicon and silicon carbide, diamond has superior material parameters and is therefore suitable for power switching devices. Numerical simulation is important for predicting the electric characteristics of diamond devices before fabrication. Here, we present numerical simulations of p-type diamond pseudo-vertical Schottky barrier diodes using various mobility models. The constant mobility model, based on the parameter μconst, fixed the hole mobility absolutely. The analytic mobility model resulted in temperature- and doping concentration-dependent mobility. An improved model, the Lombard concentration, voltage, and temperature (CVT) mobility model, considered electric field-dependent mobility in addition to temperature and doping concentration. The forward voltage drop at 100 A/cm2 using the analytic and Lombard CVT mobility models was 2.86 and 5.17 V at 300 K, respectively. Finally, we used an empirical mobility model based on experimental results from the literature. We also compared the forward voltage drop and breakdown voltage of the devices, according to variations in p- drift layer thickness and cathode length. The device successfully achieved a low specific on-resistance of 6.8 mΩ∙cm2, a high breakdown voltage of 1190 V, and a high figure-of-merit of 210 MW/cm2.

The presence of free gas at the pump intake adversely affects the performance of an electrical submersible pump (ESP) system, often resulting in low efficiency and causing operational problems. One method of reducing the amount of free gas that the pump has to process is to install a rotary gas separator. The gas-liquid flow associated with the down hole installation of a rotary separator has been investigated to address its overall phase segregation performance. A mathematical model was developed to investigate factors contributing to gas-liquid separation and to determine the efficiency of the separator. The drift-flux approach was used to formulate this complex two-phase flow problem. The turbulent diffusivity was modeled by a two-layer mixing-length model and the relative velocity between phases was formulated based on published correlations for flows with similar characteristics. The well-known numerical procedure of Patankar-Spalding for single-phase flow computations was extended to this two-phase flow situation. Special discretization techniques were developed to obtain consistent results. Special under relaxation procedures were also developed to keep the gas void fraction in the interval [0, 1]. Predicted mixture velocity vectors and gas void fraction distribution for the two-phase flow inside the centrifuge are presented. The model’s predictions are compared to data gathered on a field scale experimental facility to support its invaluable capabilities as a design tool for ESP installations.

In the diffusion-drift approximation, we have constructed a phenomenological theory of the coexisting migration of v-band holes and holes by means of hopping from hydrogen-like acceptors in the charge state (0) to acceptors in the charge state (−1). A p-type crystalline semiconductor is considered at a constant temperature, to which an external stationary electric field is applied. In the linear approximation, analytical expressions for the screening length of the static electric field and the length of the diffusion of v-band holes and the holes quasilocalized on acceptors are obtained for the first time. The presented relations, as special cases, contain well-known expressions. It is shown that the hopping migration of holes via acceptors leads to a decrease in the screening length and in the diffusion length.

As MOSFETs are scaled to deep submicron dimensions non-equilibrium, near ballistic, transport in p-MOSFETs becomes important. Recent experimental data indicates that as MOSFETs are scaled the performance gap between n and p-channel shrinks. Nonequilibrium transport effects and performance potentials of ‘Well Tempered’ Si p- MOSFETs with gate lengths of 50 and 25 nm are studied. Monte Carlo and calibrated Drift Diffusion simulations of these devices provide a quantitative estimate of the importance and the influence of non-equilibrium transport on submicron device performance. A possible explanation for the closing performance gap between n- and p-channel MOSFETs is offered.

This paper presents the finite element analysis of tubular expansion in oval bore holes such as those frequently observed in Upper Natih reservoirs. The minimum inner diameter of the expanded tubular must be larger than the drift diameter set by American Petroleum Institute (API) standards. If the minimum inner diameter is smaller than drift diameter, completion equipments can not be run successfully, which is necessary to complete an oil-well for production. The phenomenon of tubular ovality has been previously unknown to petroleum industry. Finite element model of tubular expansion in oval bore-holes is developed to determine the tubular ovality and compared with measured ovality. It was found that ovality increases linearly with tubular expansion ratio. With increase in expansion ratio, the tubular contact length with formation and developed contact pressure increases. Tubular ovality, if not considered in well design, may lead to premature tubular failure due to lower collapse rating and higher stresses.

For two-dimensional periodic water waves or sound waves, the kinetic energy per wavelength is ½mdc2, and the momentum per wavelength is ±mdc, where c is the wave velocity, and md is the drift mass per wavelength. These results also hold for three-dimensional periodic waves, for which the kinetic energy, momentum, and drift mass are all for one wave cell, the area of which is the product of the wavelengths in two perpendicular directions.The results obtained are rigorous, and not restricted to linear waves or even to nonlinear symmetric waves. For linear water waves, in particular, the kinetic energy can be shown to be equal to the sum of the potential energy and the surface energy (due to surface tension), so that the total energy E is twice the kinetic energy, andformula hereMcIntyre's (1981) contention that wave momentum is a myth is discussed at length for both water waves and sound waves.

The textbook thermophoretic force which acts on a body in a fluid is proportional to the local temperature gradient. The same is expected to hold for the macroscopic drift behavior of a diffusive cluster or molecule physisorbed on a solid surface. The question we explore here is whether that is still valid on a 2D membrane such as graphene at short sheet length. By means of a nonequilibrium molecular dynamics study of a test system—a gold nanocluster adsorbed on free-standing graphene clamped between two temperatures ΔT apart—we find a phoretic force which for submicron sheet lengths is parallel to, but basically independent of, the local gradient magnitude. This identifies a thermophoretic regime that is ballistic rather than diffusive, persisting up to and beyond a 100-nanometer sheet length. Analysis shows that the phoretic force is due to the flexural phonons, whose flow is known to be ballistic and distance-independent up to relatively long mean-free paths. However, ordinary harmonic phonons should only carry crystal momentum and, while impinging on the cluster, should not be able to impress real momentum. We show that graphene and other membrane-like monolayers support a specific anharmonic connection between the flexural corrugation and longitudinal phonons whose fast escape leaves behind a 2D-projected mass density increase endowing the flexural phonons, as they move with their group velocity, with real momentum, part of which is transmitted to the adsorbate through scattering. The resulting distance-independent ballistic thermophoretic force is not unlikely to possess practical applications.

Summary A method is presented for estimating the distribution of a parameter related to the productivity index along the length of a liner-completed horizontal well, using measurements of well flowing pressure at multiple points along the path of flow in the wellbore. This is the concept of near-wellbore diagnosis with multipoint pressure measurements, which in principle can be made with fiber-optic sensors. The deployment mechanism of the sensors is not modeled in this study, although the temperature version of such sensors has been deployed in horizontal wells on an extended-tail-pipe or stinger completion. (The temperature sensors also have been deployed in horizontal wells with sand-screen completions, in direct contact with the formation, but that configuration is not investigated in this study.) The parameter that is estimated is known in reservoir-simulation terminology as the connection factor (CF), which represents the hydraulic coupling or connectivity between the reservoir and the wellbore (between formation gridblocks and well segments). Parameter CF has units of md-ft, similar to flow capacity, or productivity index multiplied by viscosity. Specifically, the parameter is directly proportional to the geometric mean of the permeability perpendicular to the horizontal axis of the well and is inversely related to skin. No attempts are made in this study to estimate these parameters individually, which may require recourse to other methods of well diagnosis(e.g., dynamic formation testing, transient analysis, and production logging). The method applies to flow under constant-rate conditions and yields estimates of the CF, which represents the quality of the formation in the vicinity of the well and the integrity of the completion along the well trajectory. The quality of the inversion is determined by the spatial density and accuracy of the multipoint measurements. Inversion quality also depends on knowledge of the wellbore hydraulic characteristics and the relative permeability characteristics of the formation. The basic configuration investigated in this study consists of a five-node pressure array in a 2,000-fthorizontal well experiencing a total pressure drop of approximately 60 psi when produced at 10,000 STB/D. A reasonable estimate of the distribution of the parametric group CF is obtained even when allowing for measurement drift and errors in liner roughness and relative permeability exponent. Also, the inversion can be rendered insensitive to knowledge of the far-field permeability through a scaling technique. Therefore, good estimates of the near-wellbore CF profile can be obtained with uncertain knowledge of the reservoir permeability field. This is important because the technique can be applied not only to early-time but also to late-time data. The application of the multipoint pressure method is illustrated through a series of examples, and its potential for near-wellbore formation evaluation for horizontal wells is described. Introduction Horizontal wells can be diagnosed on the basis of information derived from openhole and cased-hole surveys. These include petrophysical logs, dynamic formation testers, production logging, and pressure-transient testing. With the advent of permanent sensing technologies and the development of methods of production-data inversion or history matching, a new form of cased-hole diagnosis can be envisaged, with improved spatial and temporal coverage and without the need for in-well intervention and interruption of production. The impact of such methods on reservoir-scale characterization can also be significant. There are two main preconditions for the development of such a methodology, one concerning sensing technology and the other concerning interpretation methodology. Permanent sensing technology has made great progress during the last decade, with the development of single-point and distributed measurements that can be deployed with the completion (pressure, flow rate, and distributed temperature). However, these systems are typically developed as stand alone measurement units and do not enjoy the required degree of integration. Current modeling methods, however, can be used to provide an incentive for such integration. The well-diagnosis problem is decoupled in our investigation into diagnosis of flow condition in the wellbore and diagnosis of near-wellbore formation characteristics. (By "near-wellbore," we mean the wellbore gridblock scale.)This is partly to adhere to the conventional demarcation between production logging and dynamic formation evaluation and partly to show the natural consequence of the mathematical problem. Basically, the wellbore-diagnosis problem (determination of flux distribution, as in production logging) can treat the formation simply as a boundary condition, but the formation-evaluation problem cannot do the same (i.e., treat the wellbore interface as a boundary condition) because evaluation is based on measurements made inside the wellbore. Thus, both the wellbore and the formation have to betaken into account. (Sensors that are in direct contact with the formation, as mentioned in the Summary, are emerging.8 Therefore, the evolution of this problem is to be expected.) In this study, the permanent or in-situ analog of dynamic formation evaluation is investigated. The in-situ analog of production logging is investigated in a parallel study.

The rapid adoption of lightweight activity tracking sensors demonstrates that precise measures of physical activity hold great value for a wide variety of applications. The corresponding growth of physical activity data creates an urgent need for methods to integrate such data. In this paper, we demonstrate methods for 1) synchronizing accelerometer and Global Positioning System (GPS) data with optimal corrections for device-related time drift, and 2) producing principled estimates of step counts from GPS data. These methods improve the accuracy of time-resolved physical activity measures and permit pedestrian travel from either sensor to be expressed in terms of a common currency, step counts. We show that sensor-based estimates of step length correspond well with expectations based on independent measures, and functional relationships between step length, height, and movement speed expected from biomechanical models. Using 123 person-days of data in which Hadza hunter-gatherers wore both GPS devices and accelerometers, we find that GPS-based estimates of daily step counts have a good correspondence with accelerometer-recorded values. A multivariate linear model predicting daily step counts from distance walked, mean movement speed, and height has an R2 value of 0.96 and a mean absolute percent error of 16.8% (mean absolute error = 1,354 steps; mean steps per day = 15,800; n = 123). To best represent step count estimation error, we fit a Bayesian model and plot the distributions of step count estimates it generates. Our methods more accurately situate accelerometer-based measures of physical activity in space and time, and provide new avenues for comparative research in biomechanics and human movement ecology.

A Holter recording system was established for the Göttingen miniature swine. For this purpose, we first developed a jacket to hold a Holter recording set, and subsequently determined a bipolar lead suitable for obtaining stable electrocardiogram (ECG) recording without artifacts. To make the jacket, we measured the lengths of eight sites of the body of 14 miniature swine. Several types of jackets were made and tested. We observed the behaviour of animals with these jackets by videotape recorder (VTR) recording. These observations permitted development of a jacket suitable for Holter recording. The jacket permits easy placement of the recorder, and long-term ECG recording can be performed without difficulty. In order to determine a suitable lead for long-term recording, we recorded ECGs from six adult miniature swine using three types of leads, the M-X, R-L and A-B leads. The R-L lead frequently exhibited baseline drift, and QRS complexes often disappeared in this lead due to low amplitude. ECG recording with the M-X and A-Bleads was of sufficient quality to permit analysis. This system is expected to be useful for further cardiovascular research in miniature swine.

Abstract. Investigating the process of electron acceleration in auroral regions, we present a study of the temporal evolution of the interaction of Alfvén waves (AW) with a plasma inhomogeneous in a direction transverse to the static magnetic field. This type of inhomogeneity is typical of the density cavities extended along the magnetic field in auroral acceleration regions. We use self-consistent Particle In Cell (PIC) simulations which are able to reproduce the full nonlinear evolution of the electromagnetic waves, as well as the trajectories of ions and electrons in phase space. Physical processes are studied down to the ion Larmor radius and electron skin depth scales. We show that the AW propagation on sharp density gradients leads to the formation of a significant parallel (to the magnetic field) electric field (E-field). It results from an electric charge separation generated on the density gradients by the polarization drift associated with the time varying AW E-field. Its amplitude may reach a few percents of the AW E-field. This parallel component accelerates electrons up to keV energies over a distance of a few hundred Debye lengths, and induces the formation of electron beams. These beams trigger electrostatic plasma instabilities which evolve toward the formation of nonlinear electrostatic structures (identified as electron holes and double layers). When the electrostatic turbulence is fully developed we show that it reduces the further wave/particle exchange. This sequence of mechanisms is analyzed with the program WHAMP, to identify the instabilities at work and wavelet analysis techniques are used to characterize the regime of energy conversions (from electromagnetic to electrostatic structures, from large to small length scales). This study elucidates a possible scenario to account for the particle acceleration and the wave dissipation in inhomogeneous plasmas. It would consist of successive phases of acceleration along the magnetic field, the development of an electrostatic turbulence, the thermalization and the heating of the plasma. Space plasma physics (charged particle motion and acceleration; numerical studies).

Since its invention in the 60's, the semiconductor laser has relied on vertical injection of electrons and holes in order to pump the active region to inversion. While many aspects of semiconductor laser development have seen tremendous innovation and marked progress, this vertical injection scheme has remained unchanged. In contrast, the electronic transistor has evolved from the early dominance of vertical injection to today's largely lateral injection CMOS platform, which yielded new performance, functionality, and integrability and enabled the astonishingly successful integrated circuit revolution. The lateral current injection laser offers advantages which go far beyond optoelectronic integrability: it enables new functionalities, post-fabrication processing and engineering, and in some aspects of normal operation it can lead to greatly improved performances. To realize its full potential, this new class of semiconductor lasers deserves the same attention and the intensive iterations of efforts in theory, design, fabrication, and experimental probing as its vertical cousin has been received. We introduce a first-principles, combined theoretical-experimental approach to the exploration of the LCI laser. It reveals the role of lateral ambipolar drift-diffusion of carriers in either hindering or, potentially, in enhancing the provision of gain to the desired optical mode; of two-dimensional bandstructure engineering of the injection path and active region to achieve low differential resistance and efficient modal gain provision; of selective formation and lateral positioning of heterojunction in enabling high-efficiency device operation; and of adiabatic injection of electrons and holes across diffusively-graded heterojunctions in facilitating carrier capture into 2D quantum well states. Our results point to the tremendous promise of lasers based on lateral injection of current in enabling vertical cavity lasers with vastly increased performance and functional diversity; multi-terminal devices such as lasers with capacitive gain and wave-length tunability; high-speed directly-modulated lasers with reduced chirp; and functional devices with directly integrated high-speed longitudinal modulation.

Abstract Mork, K. A., Gilbey, J., Hansen, L. P., Jensen, A. J., Jacobsen, J. A., Holm, M., Holst, J. C., Ó Maoiléidigh, N., Vikebø, F., McGinnity, P., Melle, W., Thomas, K., Verspoor, E., and Wennevik, V. 2012. Modelling the migration of post-smolt Atlantic salmon (Salmo salar) in the Northeast Atlantic. – ICES Journal of Marine Science, 69: 1616–1624. The migration of post-smolt Atlantic salmon (Salmo salar) during their first 4 months at sea in the Northeast Atlantic was simulated using an individual-based model that combined a particle-tracking scheme with growth and behaviour routines. The migration was decomposed into both passive pelagic drift with the surface currents, provided by an ocean model, and active horizontal swimming behaviour. The active swimming direction was aligned with the surface current. Swimming speed was a function of body length and calculated from recaptured tagged salmon. Releases of particles in the model were made to the west of Ireland and to the southwest of Norway. The modelled post-smolt distributions were compared with the observed distributions, and a sensitivity analysis using different swimming speeds was performed. The strength and direction of the flow can transport the post-smolts towards areas with favourable feeding conditions. However, in some areas, the direction of migration was sensitive to interannual changes in the windforcing, leading the post-smolts to areas with a different environment and prey. Inclusion in the swimming behaviour of a preference for water with higher temperature and salinity displaced the northward migration more offshore, away from coastal areas.

Abstract. Observations from the Polar and FAST satellites have revealed a host of intriguing features of the auroral accelerations processes in the upward current region (UCR). These features include: (i) large-amplitude parallel ( ) and perpendicular () fluctuating as well as quasi-static electric fields in density cavities, (ii) fairly large-amplitude unipolar parallel electric fields like in a strong double layer (DL), (iii) variety of wave modes, (iv) counter-streaming of upward going ion beams and downward accelerated electrons, (v) horizontally corrugated bottom region of the potential structures (PS), in which electron and ion accelerations occur, (vi) filamentary ion beams in the corrugated PS, and (vii) both upward and downward moving narrow regions of parallel electric fields, inferred from the frequency drifts of the auroral kilometric radiations. Numerical simulations of U-shaped potential structures reveal that such observed features of the UCR are integral parts of dynamically evolving auroral U-shaped potential structures. Using a 2.5-D particle-in-cell (PIC) code we simulate a U-shaped broad potentialstructure (USBPS). The dynamical behavior revealed by the simulation includes: (i) recurring redistribution of the parallel potential drop (PPD) in the PS, (ii) its up and downward motion, (iii) formation of filaments in the potential and density structures, and (iv) creation of filamentary as well as broad extended density cavities. The formation of the filamentary structures is initiated by an ion-beam driven instability of an oblique ion mode trapped inside a broad cavity, when it becomes sufficiently thin in height. The filaments of the PS create filamentary electron beams, which generate waves at frequencies above the lower hybrid frequency, affecting plasma heating. This results in plasma evacuation and formation of a cavity extended in height. The waves associated with filamentary electron beams also evolve into electron holes. The transverse and parallel scale lengths of the regions with large and as well as their magnitudes are compared with satellite data.

ABSTRACTWe compare measurements in a-Si:H of ambipolar diffusion length Lamb (from steady-state photocarrier gratings (SSPG)) and hole drift Χ (t) (from time-of-flight (TOF)). Using the response time tR from small-signal photocurrent decay measurements, we find that the equation L2amb = 2 (kT/e) Χ (tR) /E is consistent with the measurements, where E is the electric field inducing hole drift in TOF. Several samples under different temperature and light intensity levels have been studied. This equation has several implications. Under the usual SSPG illumination conditions, electron-hole recombination occurs while holes are still occupying valence bandtail states; hence SSPG is not sensitive to hole capture by deep levels. Furthermore, the experiments show that the Einstein relation is valid for holes in a-Si:H. We are unaware of prior direct tests of this relation in an amorphous semiconductor.

Abstract In this work, a comprehensive understanding of the relationship of photon absorption, internal electrical field, transport path, and relative kinetics on Sb2S3 photovoltaic performance has been investigated. The n-i-p planar structure for TiO2/Sb2S3/P3HT heterojunction hybrid solar cells was conducted, and the photon-to-electron processes including illumination depth, internal electric field, drift velocity and kinetic energy of charges, photo-generated electrons and hole concentration-related surface potential in Sb2S3, charge transport time, and interfacial charge recombination lifetime were studied to reveal the key factors that governed the device photocurrent. Dark J–V curves, Kelvin probe force microscope, and intensity-modulated photocurrent/photovoltage dynamics indicate that internal electric field is the main factors that affect the photocurrent when the Sb2S3 thickness is less than the hole diffusion length. However, when the Sb2S3 thickness is larger than the hole diffusion length, the inferior area in Sb2S3 for holes that cannot be diffused to P3HT would become a dominant factor affecting the photocurrent. The inferior area in Sb2S3 layer for hole collection could also affect the Voc of the device. The reduced collection of holes in P3HT, when the Sb2S3 thickness is larger than the hole diffusion length, would increase the difference between the quasi-Fermi levels of electrons and holes for a lower Voc.

ABSTRACTDirect measurements of the electron and hole mobility-lifetime products, μτ, on a 10μm thick hydrogenated amorphous silicon (a-Si:H) pi- n solar cell are presented. The μτ products, determined from charge collection using strongly absorbed light are μτ|h = 2.2 × 10−8cm2V−1 and μτ|e = 3.0 × 10−7cm2V−1, for holes,and electrons, respectively. Measurements of the drift length, ld = μτ|e + μτ|h, using uniformly absorbed light and analyzed using the uniform field model,1 give ld = 2.9 × 10−7 cm2 V−1 s−1. These results are the first experimental evidence that the carrier with the larger, μτ product determines the photovoltaic behavior. Evidence for space charge limited transport of photogenerated holes is also be presented.

ABSTRACTThe drift and diffusion in the presence of charged defects and photocarriers trapped in the tail states is re-examined. In continuity equations, diffusive and drift currents are related to free particles while the Poisson equation includes all charges. In order to make use of ambipolar diffusion approximation, the mobilities and diffusion coefficients should be attributed to the total electron and hole populations making them strongly particle-number dependent. Due to the asymmetry of the conduction and valence band tails, almost all trapped electrons reside in negatively charged defects (D−). A simple model of photocarrier traffic via tail and defect states allows to establish the effective mobility values and coefficients in Einstein relations. In a photocarrier grating experiment, grating of D− is counterbalanced by the grating of trapped holes. Nevertheless, electrons remain majority carriers, allowing the measurement of minority carrier diffusion length, but analysis is needed to relate the latter with μτ product.

ABSTRACTIn a heterojunction photovoltaic device of ITO/TiO2/poly(3-alkylthiophene)/Au, the photocurrent was characterized with different temperature by using regio-random (P3HT), regular (RP3HT) poly(3-hexylthiophene) and regio-regular poly(3-dodecylthiophene)(RP3DT). The regio-regularity and alky chain length affected the photovoltaic characteristics due to the difference in the hole carrier transport. The drift charge mobility of those devices were analyzed by the space charge limited current (SCLC) theory using dark current versus bias relations. The photocurrent in the devices based on poly(3-alkylthiopene)s began to decrease rapidly below a temperature at which the drift charge mobility was 10−5 cm2/V.s.

AbstractWe have used an elementary statistical technique to derive a closed-form expression for the hole-tailing line shape produced by photoelectric absorption of monoenergetic radiation in a semiconductor X-ray/γ-ray detector. In the case of compound semiconductors, where the drift length for electrons is much greater than that for holes, the line shape is given by a type of power law, except for a small region very near the photopeak. This analytical result agrees well with Monte Carlo simulations and is used to extract approximate μτ products from a 57Co pulse height spectrum. We also present an expression for the maximum obtainable energy resolution of a semiconductor detector in the presence of leakage current noise and intrinsic statistical fluctuations as a function of material parameters, along with a chart of the optimal band gap as a function of temperature and photon energy. Based on these considerations, the optimal band gap for room-temperature operation is approximately 2.0 eV.

AbstractNowadays much attention is given to the ultrasound influence on electrophysical properties and defective structure of semiconductors and semiconductor structures [1,2]. In particular, a big interest is caused by the processes which take place in the material under non-equilibrium conditions, caused by the acoustic vibration [2]. This paper is devoted to the study of the ultrasonic waves dynamic influence (in situ) on the processes of the charge transport in a silicon solar sell.The silicon structures with p-n-transition received by phosphorus ions implantation in a surface layer of Si:B plate have been chosen as the research objects. Transition is located at 0,5 microns depth from surface, n-layer electron concentration is 1019 cm−3, hole concentration is 1.3×1015 cm−3. The specified structures I-V characteristics are measured under ultrasonic fluctuations excitation conditions. The researches were carried out both without external illumination as well as under external illumination. In the latter case, additional carriers photogeneration occurred both at the p-n-transition region and at the p-area depth. Longitudinal acoustic waves were excited in structures with help of LiNbO3 transducer; the ultrasound frequency is 4.1 and 13.6 MHz; the acoustic power is up to 3 W/cm2.It is revealed, that the changes of diffusion parameters take place at the non-equilibrium conditions caused by ultrasonic lading. These changes are shown in photocurrent rising. Photocurrent increase reached up to 15 %, which corresponds to 2 times diffusion length increasing approximately. Also the essential (up to 40 %) acoustostimulated decreasing of the p-n-transition saturation current is revealed. The characteristic time of the observable effects is level with tens minutes. It is established, that dependence of the dynamic changes on ultrasound power is nonlinear. It is shown, that efficiency of an acoustostimulated influences raises with an ultrasound frequency.The analysis has shown that observable effects are connected with non-equilibrium processes of defects ionization and reorientation at an acoustic field. It specifies an opportunity of a dynamic management of a charge carriers distribution processes in semiconductor structures by ultrasonic waves.

ABSTRACTDrift mobilities, drift mobility-lifetime products and minority carrier diffusion lengths perpendicular to the planes of a-Si:H, F/a-Si0.35,Ge0.65:H, F superlattices have been measured over a range of well sublayer widths. The transport data suggest a transition from scattering dominated transport in states at the top of the barriers for short superlattice periods to recombination dominated transport at the bottom of the wells for large periods. The characteristic period for this transition is ˜3 nm.

ABSTRACTThe effective temperature definition which combines electric field and lattice temperature is critically discussed based on dark conductivity and drift mobility data measured over a wide range of temperature (10 K ≤ T ≤ 300 K) and electric field (102 V/cm ≤ F ≤ 6×105 V/cm). The reasonable values for the localisation lengths of electrons (αe ≡ 7–8 A) and holes (αh, ≡ 4 A) as well as the overall good agreement between predicted and deduced features support the effective temperature concept. A statistical transit time equation for transport at low temperature and high field is given and discussed based on time-of-flight data measured at T = 40 K.

ABSTRACTHydrogen injection with B acceptor neutralization in p-type Si etched in HNOs and HF acid mixtures has been confirmed by isotopic [D] substitution and secondary ion mass spectrometry [SIMS] profiling. Quantitative measurements of the near-surface Injected hydrogen were made following field-aided, in-bulk transport [H+ drift] in reverse-bias annealed Schottky diodes from etched, B-doped Si. Chemical-etch injection is found to be self limiting with neutralization observed over a depth which is characteristic of the base material acceptor concentration and in the range 6–8 extrinsic Debye lengths, indicating that holes are essential in the injection mechanism. An effective diffusivity for hydrogen in etched p-Si of ∼ 2 × 10−9 cm2 s−1 was measured [300 K], considerably higher than previously reported.

ABSTRACTPhysical properties of large band gap semiconductors such as: HgI2, CdTe, Cd0.8Zn0.2Te, CdSe, Cd0.7Zn0.3Se, GaAs, PbI2 and TlBr are briefly reviewed and discussed in terms of their use as room temperature operating x-ray and gamma ray radiation detectors. It is shown that HgI2 which has the largest drift length for holes, λ=μτE i.e., the product of the mobility μh, life time τh and the electrical field E, is at present the leading material, being followed by the newly developed Cd0.8Zn0.2Te. Chemical defects in HgI2 were enhanced by doping the material with aliphatic, aromatic and oxyhydrocarbons as well as with excess Hg and I2 and the increase in unit cell parameter was studied as a function of the amount of dopant. The value of τ was measured as a function of dopant concentration and it was found that Hg doping causes the most severe trapping defects. Low temperature studies of τh down to 170K allowed the identification of the trapping energy levels and concentration of electrically active defects. Shallow traps of 0.13-0.18 eV stemming from deviation from stoichiometry of H-gI2 were found to be in the ppm level whereas deeper traps of 0.4-0.5 eV stemming from hydrocarbons were found to be in the ppb level. It is concluded that only extensive research on the physical, chemical and structural defects correlated with improved crystal growth and device fabrication methods, would lead, in the future, to improvements in λh also of the other large Eg semiconductor detector materials.

Futuristic fiction almost by definition enters into a dialogue with the present as a future past. As a consequence, history haunts even the most inane visions of the future in often quite subtle ways. An excellent prompt to speculate on this issue is provided by Luc Besson's popular film The Fifth Element (1997). Like many science-fiction films, it is about a future troubled by its own promises. It almost goes without saying that while not specifically figured around Y2K, the attention to dates and time in the film combined with its late '90s release date also inscribe it within Millennial anxieties about the end of the world. History plays a series of roles in The Fifth Element. In common with many science-fiction fables, the film stages an inverted fictional genealogy, in which the viewer is actively encouraged to revel in identifying extrapolated features and concerns of the present. This heralds a basic historicity: that is, it invites us to grasp our present as history through its defamiliarisation. Moreover, like another futuristic film of the same year, Gattaca, it is aesthetically marked by the pathos of what might be called millennial "nostalgia for the future" -- that lost utopian real of Modernist aesthetic desire which seems to haunt these "post-post-apocalyptic", Space-Age futures1. This is only enhanced by quoting generously from earlier moments of the science fiction genre (such as Blade Runner). Striking, however, is that despite all of this, everyday America -- globalised and projected two hundred and fifty years hence -- is not so much dystopian or utopian as just ordinary. People still smoke, but filters makes up three-quarters of a cigarette's length; we still get stuck in chaotic traffic, even if it flies above the ground; we still eat Chinese takeaway, only now the restaurants fly to you; and cops still eat take-away at drive-through McDonald's, which are now floating fixtures in the cityscape. That individuals are so stylish (thanks to costume design, everyone is wearing Jean-Paul Gaultier) also seems significant, because this aestheticised ordinariness helps focus attention on the lived time of everyday utopian yearnings. In these ways and more, our contemporary moment is immanent in the film. However, at certain other crucial moments in the film, History is directly presented as an excess. Let me explain. Two hundred and fifty years into the future, a "Supreme Being" -- Leeloo (Milla Jovovich) -- is genetically reconstructed by scientists. Dubbed the missing "fifth element", she belongs to a highly developed extra-terrestrial species who have a protectoral relation to humanity. In the beginning, Leeloo is cut off from human language -- speaking in a tongue that combines a mixture of European dialects with baby-speak (her favourite phrase, as anyone who has seen the film will recall, is "[Big] badda-boo!"). She speaks what a priest in the film calls the "Divine language", "spoken before time was time" -- evoking the theological dream of a universal pre-symbolic language, of a pure speech that speaks the world rather than speaks of it. Her very first English word is "Help!" -- which she reads off a taxi sticker advertisement for starving black orphans. And it is perhaps no accident that she identifies with this future's expropriated. Leeloo is a body cast into marginality. Caged as an exhibit from the moment of her arrival on Earth, with her exotic appearance, wide-eyed wonderment and capacity for mimicry, she displays all the tropes of the infantilised and sexualised Other. Romanticised as a primitivist fantasy, she represents a classically vulnerable redemptive figure2. Two hundred and fifty years into the future, a "Supreme Being" -- Leeloo (Milla Jovovich) -- is genetically reconstructed by scientists. Dubbed the missing "fifth element", she belongs to a highly developed extra-terrestrial species who have a protectoral relation to humanity. In the beginning, Leeloo is cut off from human language -- speaking in a tongue that combines a mixture of European dialects with baby-speak (her favourite phrase, as anyone who has seen the film will recall, is "[Big] badda-boo!"). She speaks what a priest in the film calls the "Divine language", "spoken before time was time" -- evoking the theological dream of a universal pre-symbolic language, of a pure speech that speaks the world rather than speaks of it. Her very first English word is "Help!" -- which she reads off a taxi sticker advertisement for starving black orphans. And it is perhaps no accident that she identifies with this future's expropriated. Leeloo is a body cast into marginality. Caged as an exhibit from the moment of her arrival on Earth, with her exotic appearance, wide-eyed wonderment and capacity for mimicry, she displays all the tropes of the infantilised and sexualised Other. Romanticised as a primitivist fantasy, she represents a classically vulnerable redemptive figure2. Leaving aside for the moment the perhaps inevitably romantic resolution to this predicament, we can interpret this scene as a critique of the Enlightenment pretension to "total History". The "arbitrary" order of alphabetisation, which replaces the seemingly determined disorder of historical narratives, is akin to the Kantian dream of a cosmopolitan state of "universal history". Think, too, of the aging Hegel, writing in 1830: We witness a vast spectacle of events and actions, of infinitely varied constellations of nations, states and individuals, in restless succession. ... Everywhere we see a motley confusion ... But ... we grow weary of particulars and ask ourselves to what end they all contribute. We cannot accept that their significance is exhausted by their own particular ends; everything must be part of a single enterprise. (325-7) Leaving aside for the moment the perhaps inevitably romantic resolution to this predicament, we can interpret this scene as a critique of the Enlightenment pretension to "total History". The "arbitrary" order of alphabetisation, which replaces the seemingly determined disorder of historical narratives, is akin to the Kantian dream of a cosmopolitan state of "universal history". Think, too, of the aging Hegel, writing in 1830: We witness a vast spectacle of events and actions, of infinitely varied constellations of nations, states and individuals, in restless succession. ... Everywhere we see a motley confusion ... But ... we grow weary of particulars and ask ourselves to what end they all contribute. We cannot accept that their significance is exhausted by their own particular ends; everything must be part of a single enterprise. (325-7) If The Fifth Element critiques the universal history lesson, it also revolves around a dialectical relation between past and present. Although the opening scene in late colonial Egypt locates the film's narrative historically, these later scenes suggest a break with conventional, clean historiographical separations between the past and the present5. Leeloo's reading of History implies that embodied historical reception is in a perpetual in-between state. Not only the representation of the past as History but the experience of Time itself becomes less a matter of chronology than of a Freudian retroactivity, a "present past" with everyday variations which belong as much to future possibilities as to what we perceive as the present. The necessary absence of a determinate "past object" (referent) in historical understanding means that historicity is a traumatic process of deferral. In psychoanalytic terms, Leeloo's forced recognition of the unnatural deaths of Others is a traumatic encounter which generates a hole in the symbolic order of Leeloo's "real". Leeloo's traumatised body metaphorically becomes the singular "truth" of the symbolic world6. A global history is in fact nobody's history in particular -- belonging to everybody and nobody. This is the fate of the CD-ROM: a "memory" overwhelmingly composed of media images, and an allegory for our own situation of image saturation (whose stereotypical symbol is the isolated individual glued to a flickering screen). Yet when Leeloo enters history with a kiss, a fragile dialogical exchange in which her own life "story" begins, the fate of media images is to become socialised as part of non-synchronous particular narratives7. The grand "nightmare" of History has become comprehensible through her particular access to universal History -- and the result is an appropriated, ongoing experience with an undisclosed future. The Fifth Element thus presents a distinctly everyday solution to the problem of historical time -- and is this not how media history is experienced? No doubt in the future no less than the present, history will be less a matter of the Past itself, than of the allegorical reverberation of events documented and encountered in the everyday mediasphere. Footnotes Mark Dery recently berated the trend for retro-futurism as a Wallpaper-inspired plot, poised to generate a nostalgia for ironic dreams of fading technological utopias, while revealing the banality of design fashions that demand the ever new. See "Back to the Future", posted to Nettime (5 Sep. 1999) It is also worth noting the sublime role of the Diva in the film, whose pained operatic performance embodies what Slavoj Zizek once called the jouissance of modernity. Humanity's potential will to "creative destruction" has previously been embodied in Gary Oldman's evil business figure of Zorg, who undoubtedly represents the excesses of corporate capitalism (he illustrates his Ayn Rand-style vitalist philosophy at one point by letting a glass fall from his desk and shatter on to the ground: gleefully watching as a team of mechanical robots whiz around the floor sweeping it up, he croons: "see -- a lovely ballet ensues, adding to the great chain of life -- by creating a little destruction, I am in fact encouraging life". See Jean-François Lyotard, The Postmodern Condition: A Report on Knowledge, trans. Geoff Bennington and Brian Massumi. Vol. 10, Theory and History of Literature. Minneapolis: U of Minnesota P, 1984; Jacques Derrida, Spectres of Marx: The State of the Debt, the Work of Mourning, and the New International, trans. Peggy Kamuf. London: Routledge, 1994. Historiographical time can be distinguished from psychoanalytic time on the basis of two different ways of organising the space of memory. While the former conceives the temporal relation as one of succession and correlation, the latter treats the relation as one of imbrication and repetition. Michel de Certeau, Heterologies: Discourse on the Other. Translated by Brian Massumi. Vol. 17, Theory and History of Literature. Minneapolis: U of Minnesota P, 1986. 4. An interesting sf intertext here is Andrei Tarkovsky's Solaris, in which a woman who is a projection of a man's memory unsuccessfully attempts to kill herself to prove that she is made of historical reality. In this traumatic scene, she consumes liquid nitrogen and writhes on a metallic floor in a frozen state until she gradually thaws into human movement. Leeloo is finally brought into the "un-Historical" time of everyday embodied subjectivity with a single kiss. To borrow the language of psychoanalytic film studies, her "screen memories" are reconfigured by an imaginary resolution in the present. I use the term screen memories with a nod to both the computer screen and Freud's compelling if problematic account of repressed mnemic material. Freud writes: "As the indifferent memories owe their preservation not to their own content but to an associative relation between their content and another which is repressed, they have some claim to be called 'screen memories'". Sigmund Freud, The Psychopathology of Everyday Life. Vol. 5, The Pelican Freud Library. Harmondsworth: Penguin, 1960. 83. References Fukuyama, Francis. The End of History and the Last Man. New York: Avon Books, 1992. Hegel, G.W.F. "The Philosophical History of the World: Second Draft (1830)." German Idealist Philosophy. Ed. Rüdiger Buber. London: Penguin, 1997. 317-39. Citation reference for this article MLA style: Daniel Palmer. "Nostalgia for the Future: Everyday History and The Fifth Element." M/C: A Journal of Media and Culture 2.9 (2000). [your date of access] <http://www.uq.edu.au/mc/0001/nostalgia.php>. Chicago style: Daniel Palmer, "Nostalgia for the Future: Everyday History and The Fifth Element," M/C: A Journal of Media and Culture 2, no. 9 (2000), <http://www.uq.edu.au/mc/0001/nostalgia.php> ([your date of access]). APA style: Daniel Palmer. (2000) Nostalgia for the future: everyday history and The Fifth Element. M/C: A Journal of Media and Culture 2(9). <http://www.uq.edu.au/mc/0001/nostalgia.php> ([your date of access]).

IntroductionThis article proposes that the practice of relaxation—a mode of bodily self-organisation within time—provides a way to diversify times as political and creative intervention. Relaxation, which could seem counter-intuitive, may function as intentional temporal intervention and means to slip some of the binds of neoliberal, surveillance capitalist logics. Noting the importance of decision-making (resonant with what Zuboff has called “promising”) as political, ethical capacity (and what dilutes it), I will argue here that relaxation precedes and invites a more active relation to the future. Relaxing and deciding are contrasted, in turn, with something dubbed ‘sub-habituality.’ This neologism would work as a critical poetics for the kind of (non)time in which we may be increasingly living. If, in Discipline and Punish, 1970s Foucault explored the various strategies of coupling time constraints/‘refining’ of time periods (150) with surveillance, I argue here that we might reconsider these same elements—time, constraint, intentionality—aslant and anew, as we approach the third decade of the 21st century (nearly 20 years after Google began opportunistically gathering the data exhaust of its searches). If in a disciplinary society, the organisation of bodies in time served various orders of domination, is it possible that in a control society (as Deleuze has named it), time and bodily composure may be harnessed otherwise to evade surreptitious logics of a neoliberal flavour?The elements noted by Foucault (i.e. structured time, bodily organisation) can—when rendered decisive, coupled with relaxation (to be defined), and with surveillance muddled or subtracted—become tools and modes for questioning, resisting and unsettling various mechanisms of domination and the dilutions of ethical capacity that accompany them in the current moment. We may, in other words, decide to structure our time when unobserved (for example with Flight Mode or connectivity off on laptops, etc.) for intentional, onto-political ends. A later Foucault, incidentally, went on to connect certain practices of care of the self to ethics, as ethical obligations (Foucault, “Ethics”). Time plays a role in such practices. With this as background, this article will read atmospherically some of Gilles Deleuze’s ontological offerings regarding time from his 1968 work Difference and Repetition. However, before this, I wish to clarify the article’s understanding of neoliberalisation in a digital moment.A neoliberalising moment, to use Springer’s preferred nomenclature (5), co-exists presently with a ubiquity of digital media engagement and co-opts it and exacerbates its reach for its manoeuvres. The former’s logics—which digital practices might at once support and/or contest—involve well-known imperatives of ‘efficiency’, aesthetics of striving, untrammelled growth, logics of scarcity and competition, privatisation of community assets, the so-called autonomy of the market, and so on. In his essay on control societies (which notably, after World War II, eclipse the disciplinary societies described by Foucault), Deleuze puts it like this:the corporation constantly presents the brashest rivalry as a healthy form of emulation, an excellent motivational force that opposes individuals against one another and runs through each, dividing each within. (5, my emphasis)Neoliberalism, where corporations have tended to replace factories, relies variously on competition between peers, dubious forms of (often ludicrous) motivation, fluctuating salaries and debt (in the place of explicit enclosures), so as to reduce the capacity and the lived expansiveness of the human (and non-human) beings who exist within its order.With this as background, I’m interested in the ways that personal electronic devices (PEDs) and the apps they house may—if used mostly compliantly and uncritically—impact what I would like to call our temporal diversity. This would involve a whittling-down of our access to atmospheres, thus to more impoverished constellations of living, and finally to profound disenablings in many spheres. PEDs provide a monetisable means of pervasive surveillance and increasingly-normalised "veillance" (Lupton 44). Certain modes of domination—if we read this term to mean a reduction of (ethical, creative, political) capacity—furthermore mobilise very specifically a co-opting of time (in the form of ‘engagement’, our eyes on a screen) and time’s strategic fragmentation. The latter is facilitated variously by monetised, gamified apps, and social media Skinner-box effects, entwined with the veillance made possible by the data exhaust of our searches and other trackable online behaviours, self-loggings, and so on. Recalling the way, in disciplinary societies, that power relations play out via the enclosure and regulation of bodies and their movement—the latter imposed externally and with the imperative of a ‘useful time’ or with the aim of self-optimising—I’m curious about how self-selected modes of resistant bodily organisation might operate to insulate or shelter humans living under and within various intensities of neoliberalisation, its discourse and its gaze. Sheltered, one might recover a creative or robust response. To use temporal strategies and understandings, we may subtract ourselves (even just sometimes) from stealthy modes of control or ‘nudging’, from ways of being which are increasingly marketed as ‘common sense’ approaches to activity and spendings of time.With regard to neoliberalisation (defined according to Springer, 37-38) and its coupling with digital life, I query if we may be finding ourselves too-often dipping below the threshold of what ought to be our most assumed temporality: namely, Deleuze’s ‘living’ or habitual present (from the second chapter of his Difference and Repetition). The moniker of ‘temporal diversity’ seeks to flag that—in a moment where we observe and resist the shutting down of diversity in numerous spheres, of species, eco-systems, cultures and languages, and their eclipse by modes produced for our consumption by globalisation—we could easily miss another register at which diversity is threatened. We might arguably be facing the loss of something which, after the fact, we may struggle to name—since it is not a ‘thing’—and whose trajectory of disappearance might wholly elude us. This diversity is that of times.Deleuze’s Three Syntheses in Difference and RepetitionIn Chapter 2 of his 1968 work, Deleuze explores three ways in which time can synthesise. Each synthesis involves a kind of weaving of the basic operations of difference and repetition. One way to read Deleuze in this work is that he (among other things) effectively sketches three kinds of atmospheres of time. Each of these, I argue, if seen as frame, contributes a richness and diversity to what a life—and what our shared life—can be and feel like.The first kind of time is called the habitual or ‘living’ present. It synthesises from a stitching together, drawing together, of the retaining of disappearing, disparate instances that otherwise bear no basic relation to one another (Deleuze, Difference 97). As a ‘present’, it has a stretch, a ‘reach’ which depends somewhat on our organism’s capacity to contract discontinuous instants. As Hughes beautifully puts it: “Our contractile range is the index of our finitude” (110). As we’ll see below, it would be a crumbling of this ‘range’ that sub-habituality designates. This living present of Deleuze also has a past inflection, marked by the just-gone and by a mode of memory, as well as by a future aspect, marked—not always constructively—by anticipation.One way to read the ‘living’ present is as being akin to our temporal ‘food and shelter’, a basic synthesis in which to dwell basically. Not thrilling or obviously creative, seductive or vast, it is the time—I’d suggest—in which we establish routine, in which we maintain a liveable life. Theorists such as Grosz have argued—in this tradition with Deleuze which positively evaluates habit—that habit, as mode of time, frees the organism up so that invention and innovation can then seed (see Grosz).The ‘living’ present turns out, however, not to be assumable in every case. For example, in cases of PTSD, I’d contend, it may be interrupted, lost, thus is not to be taken for granted under all conditions. Its status under a gamified neoliberalisation or surveillance capitalism is of interest to me and thus I offer this poetics of sub-habituality as a way to designate its vulnerability—that we might slip below its steadying threshold.Neither does the habitual present constitute much of a diversity; it would not cut it, let’s say, as enough for an abundant or varied temporal life. The habitual present contributes to the conditions that would enable me to form intentions (as a cohering ‘self’), to fashion basic schedules with my own initiative, to order an adult life. For a truly rich temporal life, however, we’d wish to include the poetics intimated by Deleuze’s two other syntheses, their more diverse atmospheres and the arguably political capacities they open to us.The second (passive) synthesis pertains to a vast and insisting past, in the lineage of Henri Bergson, and which, Deleuze notes, might be accessed or ‘saved for ourselves’ via that which we call reminiscence (Difference 107)—a dreamy, expansive and often-pleasurable state (except, for example, in cases of PTSD, or even perhaps versions of dementia, where the person may not be able to leave or surface from it). To dig, in thought, ‘down’ into the register of this vast past and to unearth a rigorous account of it, one goes via a series of paradoxes (see Deleuze, Difference 101-105). If the first passive synthesis is constituted by habit’s mechanisms, the second passive synthesis is constituted by memory’s: “memory is the fundamental synthesis of time which constitutes the being of the past (that which causes the present to pass)” (Deleuze, Difference 101). Hughes puts it thus: “the pure past in general [is] a horizon of having-been-ness, in which what was apprehended [in the first synthesis] finds the conditions of its reproducibility” (108). If such a pastness designates one moment in how selves and their being-as-time synthesise, one might want to know how to include this rich, languorous, sometimes lost and meandering, atmosphere in a life. This might assist an understanding of what distorts or precludes it, and thus our learning for how to invite it in, alongside our more habitual modes.No mode of time, therefore, is simplistically inflected as positive or negative. Without their multiplicity, I’m arguing, we are left temporally less endowed. I wish to articulate not the swapping of one kind of time for another—as if one would only favour productive ‘times’, or efficient ‘times’, or competitive ‘times’, or steady ‘times’, or dreamy, meandering ‘times’—but a diversity. When we feel wildly dissatisfied and imagine that a tangible thing, situation or acquisition—content in time, in other words—would serve as a salve for this uneasiness, we might also consider that what’s missing could be a temporal mode. Which one have we lost the capacity to access or drift into? I’ll now turn to the third synthesis which Deleuze explores, which pertains to the future and its opening up.For the purposes of my argument here, I want to use this third synthesis to gesture towards the future as a possible mode—empty, sheer—and which distinguishes itself entirely from the future ‘aspects’ of the first two syntheses. I both take a poetic cue from Deleuze, as well as note that this synthesis is the least obvious or accessible in a usual life, one in which habit’s organisation is established, and even in which perhaps there are pockets of the ‘erotic’ (Deleuze, Difference 107) and/or expansive driftings of the second synthesis of memory. The third synthesis, then—associated with Deleuze’s take on thought—marks the moment when something becomes active. Deleuze presents it to the reader of Difference and Repetition in relation to Nietzsche’s Eternal Return:that is why it is properly called a belief of the future, a belief in the future. Eternal Return affects only the new, what is produced under the condition of default and by the intermediary of metamorphosis. However it causes neither the condition nor the agent to return: on the contrary, it repudiates these and expels them with all its centrifugal force. (Difference 113, emphasis original)When habit dominates our temporal palette, the future appears to be possible only in habit’s guise of it—that is, in the mode of anticipation, which then morphs to prediction as this synthesis moves into its more active modes. Anticipation is a pragmatic but weak future. It is useful, without doubt, since habit’s future mode knows to say: at three o’clock I need to get my shoes on, grab keys and wallet, and drive to pick up X. I anticipate that they will be waiting on this corner, and so on. Habit’s internally available ‘future’ is crucial and steadying. Knowing how to manoeuvre within it is part of learning to live some kind of organised life. In sub-habituality I’d argue, we may not even have that. Zuboff intimates this when in Chapter 11 she speaks of a right to a future tense.Deleuze’s third synthesis opens the self precisely onto that which-cannot-be-anticipated. The Nietzschean mode of the future that Deleuze explores at length is not akin to habit’s ordering and stabilising; it is not to be compared to the reminiscent climes of pure memory, to the vast dilations and contractions of its insisting topographies. The third synthesis asks more of us. It asks us to forget the versions of ourselves we have been (in the very moment that we affirm the repetition of everything that has been, to the letter) and to stare unblinkingly into a roaring Nothingness, or better into the strange weathers of a Not-Determined-Yet.My own practice-based creative research into these matters confirms Deleuze’s architectures. I say: we need the two other temporal syntheses and rely on them in order to dramatise something new in the third synthesis. The is the ability, in other words, to decide and to forget enough to be able to dance forward into an unknown future.Sub-Habituality: Or Less than a ‘Living’ PresentKorean thinker Byung-Chul Han links our use of devices, and the necessity of engaging with them for our social/economic survival, to the kind of dispersed and fretful awareness needed by animals surviving predators in the wild. He sees ‘multitasking’ in no way as any kind of evolution, but names it provocatively a regression, which precludes the kind of contemplation upon which sophisticated cultural practices and fields, such as art and philosophy, arguably depend (Han 26-29). Habit involves the crucial notion of a ‘range’ of, or a capacity for, contracting disparate instants—so as to make possible their being stitched together, via contemplation’s passivity (Deleuze 100), and thereby to synthesise a (stable, even liveable) present. Recall that Hughes called it the index of our finitude. How do digital engagements—specifically with apps and their intentionally gamified designs, and which involve a certain velocity of uncadenced movement and gesture (eyes, hands, neck position)—impact an ability to synthesise a steady-enough present? Sub-habituality, as name, seeks a poetics to bring to articulation an un-ease that would be specifically temporal, not psychological, or even merely physiological.To know about the stability offered by habit’s time allows the cultivation of temporal atmospheres that are pleasant and stable, as well as having the potential to open onto creative/erotic modes of a vast past, as well as not be closed to the pure future. This would be a curation of the present, learning how to ‘play’ its mechanisms such that the most expansive and interesting aspects of this mode—which can condition and court other modes—can come forth.Sub-habituality is that time where the gathering of instants into any stretch is hindered, shattering the operations of coherence and narrowing aperture for certain experiences. No stretch in which to dwell. The vast and calming surfaces of our attention breaking into shards. Sub-habituality would be anti-contemplative, in an ontological sense. No instant could hold for long enough to relate to its temporal peers. Teetering there on the edge of a non-time, any ‘subject’ who might intend is undermined.Next, I turn to the notion of relaxation as bodily practice and strategy to insulate or shelter humans living under and within various intensities of digitalised neoliberalisation. Instead of offering oneself up for monetised organisation, one organises oneself via the nuanced effort that is a ‘dropping of excess effort’. The latter is relaxation and may thwart surreptitious modes of (imposed temporal) (dis)organisation, or what tends to appear increasingly as ‘common sense’ approaches to activity and spendings of time. We practise deciding to structure blocks of time, so that within their bounds we can risk experimenting with relaxation, its erotics and its vectors of transformation.RelaxationNeoliberalisation, after Springer, involves the becoming common-sensical of numerous logics: competitiveness in every sphere of life, ubiquity of free market logics, supposed scarcity (of time, opportunity), rationalisation and instrumentalisation of processes and attitudes to doing, and an emphasis on a discourse of efficiency (even when it is not, in actuality, what obtains). For Deleuze, in a control society, similarlymany young people strangely boast of being “motivated”; they re-request apprenticeships and permanent training. It’s up to them to discover what they are being made to serve, just as their elders discovered, not without difficulty, the telos of the disciplines. ("Postscript", 7)How can we serve less this current telos? What (counter or subtractive) practices might undermine the conditions for the entrenching of such logics? My contention in this article is that practices of the body that also involve the intentional organising of time, along with approaches to movement generally that forgo striving and forcing (that is: kinds of violent ‘work’), may counter some of the impacts (especially of a temporal nature, as discussed above) that align with and allow for neoliberal logics’ pervading of all spheres of life. Relaxation is a useful shorthand for such strategies.In my work elsewhere on practising, I’ve argued that relaxation is the third (of four) criteria that constitute the specific approach to ‘doing’ that can be designated practising (see Pont; Attiwill et al.). Relaxation is a very particular approach to any behaviour or movement, whereby the ‘doer’ pays close attention and seeks to use only the necessary amount of effort for the activity in question. This dropping of ‘natural’ (or knee-jerk) effort is itself a kind of unusual effort. The word ‘natural’ here comes from writings by Vachaspati Mishra (192) and makes the subtle point that relaxation intervenes on what is ‘natural’ or on what has acquired inertia, on that which enacts itself without decision or intention. In this strictly ontological/temporal intervention, relaxation refuses to collude with common-sense approval for striving-as-new-piety that dominate neoliberalised discourses and their motivational propagandas.Relaxation constitutes an enacted—repeatedly enacted—decision at the level of the body to organise movement/doing in ways subtracted from neoliberalised discourse, reawakening intention. It is a quiet intervention, precise and difficult, that works to counter a widespread fundamentalism of doing with excess (or Leistung with its inevitable flipside of collapse and exhaustion, as critiqued by Han 24-25). This dovetails with the ubiquity of digital engagements/behavioural training, which effectively constitute an unending labour for many. Counter-intuitively, relaxation (when understood strictly as practice, not in its lay inflection as compensatory ‘collapse’) can establish a minimum membrane hindering the penetration of this labour into all spheres of a life. Once PEDs are intentionally used—very difficult to do—and limited in terms of the proportion of time they are engaged with, they pose a reduced threat to times’ diversity. (To organise my time, curiously too, I make use of PED timer features, on flight mode, and so on. Others use apps specifically designed to help them use fewer apps.)We find ourselves here faced with various and emergent practices of saying ‘no’ to serve a process that experiments with affirming something else—perhaps this ‘else’ would be the conditions for that which does yet exist, that is: truly open futures, creativity, robustness in the face of change. Promising? Deciding? My argument is that a body immersed too much in sub-habituality is less capable overall of withstanding the atmospheres of the third synthesis (and, if we follow Han, too dispersed and fragmented to access certain atmospheres that we might associate with the second). It may not even have a sense of a living present. It becomes less and less intentional, more malleable, very tired.There is—in the work of the body that resists complying with the logics of neoliberalisation, that resists a certain corrosion of Deleuze’s first time (and of the subsequent two times that in Deleuze open from them)—a clear practice of dropping, letting fall, not picking up in the first place. We forgo then certain modes of, or approaches to, action when we work to subtract ourselves from an encroaching (a)temporality that is none at all. To foil reactivity we have two obvious options: we learn to activate our reactivity—to act it; or we pause just before enacting from within its logic. Relaxation is more about the latter.ConclusionThe sub-habitual discussed in this article is, most importantly, a grim affective/temporal register to inhabit. For many, its unpleasantness is met with queries about mental health, since it naturally impacts us in a register that feels like bad thinking, like bad feeling. By introducing an onto-temporal inflection into such queries, I suggest there might be a certain kind of ‘health’ or better still a ‘pleasure’ in a life that can obtain with the cultivation of a diversity of times. Deleuze’s model of three kinds of temporal synthesis tempts me as one way to track what might be going missing in a moment when certain technologies, serving particular economic and political agendas and ideologies, can coax our rhythms, behaviours and preoccupations down particular paths. The fleshy, energetic and thinking body, as a site of affirmation, as a vehicle for practices that subtract themselves from dominant logics, can—I’ve argued here—be a crucial factor in working with temporality in such a way that one is not left with an homogenised non-time in which we are not-quite-subjects or diluted selves vulnerable to being worked on by logics that drive neoliberalisation and its sufferings. Relaxation is among a suite of strategies that may keep our times (and ourselves as modes of time) diverse: stable, pleasure-capable, imaginative and fierce.ReferencesAttiwill, Suzie, Terri Bird, Andrea Eckersley, Antonia Pont, Jon Roffe, and Philipa Rothfield. Practising with Deleuze. Edinburgh: Edinburgh University Press, 2017.Deleuze, Gilles. Difference and Repetition. Trans. Paul Patton. London: Continuum, 2004.———. “Postscript on the Societies of Control.” October 59 (1992): 3-7.Foucault, Michel. Discipline and Punish: The Birth of the Prison. Trans. Alan Sheridan. New York: Vintage Books, 1995.———. “The Ethics of the Concern for Self as a Practice of Freedom.” The Essential Works of Michel Foucault, Vol. 1: Ethics: Subjectivity and Truth. Ed. Paul Rabinow. New York: New Press, 1997. 281-302.Grosz, Elizabeth. “Habit Today: Ravaisson, Bergson, Deleuze and Us.” Body and Society 19(2&3): 2013. 217-239.Han, Byung-Chul. Müdigkeitsgesellschaft Burnoutgesellschaft Hoch-Zeit. Berlin: Matthes & Seitz, 2016.Hughes, Joe. Deleuze’s Difference and Repetition: A Reader’s Guide. New York: Bloomsbury, 2009. Lupton, Deborah. The Quantified Self. Cambridge: Polity Press, 2016.Mishra, Vachaspati. The Yoga System of Patanjali. Trans. J. Haughton Woods. Delhi: Motilal Banarsidass, 1914 (by arrangement with Harvard University Press).Pont, Antonia. “An Exemplary Operation: Shikantaza and Articulating Practice via Deleuze.” Transcendence, Immanence and Intercultural Philosophy. Eds. Nahum Brown & William Franke. Cham, Switzerland: Palgrave Macmillan, 2016. 207-236.Springer, Simon. The Discourse of Neoliberalism. London: Rowman & Littlefield, 2016.Zuboff, Shoshana. The Age of Surveillance Capitalism. New York: PublicAffairs, 2019. (Kindle Edition.)

There is, in our sense of place, little cognisance of what lies underground. Yet our sense of place, instinctive, unconscious, primeval, has its own underground: the secret spaces which mirror our insides; the world beneath the skin. Our roots lie beneath the ground, with the minerals and the dead. (Hughes 83) The-Home-and-Away-Game Imagine the earth-grounded, “diagrammatological” trajectory of a footballer who as one member of a team is psyching himself up before the start of a game. The siren blasts its trumpet call. The footballer bursts out of the pavilion (where this psyching up has taken place) to engage in the opening bounce or kick of the game. And then: running, leaping, limping after injury, marking, sliding, kicking, and possibly even passing out from concussion. Finally, the elation accompanying the final siren, after which hugs, handshakes and raised fists conclude the actual match on the football oval. This exit from the pavilion, the course the player takes during the game itself, and return to the pavilion, forms a combination of stasis and movement, and a return to exhausted stasis again, that every player engages with regardless of the game code. Examined from a “diagrammatological” perspective, a perspective Rowan Wilken (following in the path of Gilles Deleuze and W. J. T. Mitchell) understands as “a generative process: a ‘metaphor’ or way of thinking — diagrammatic, diagrammatological thinking — which in turn, is linked to poetic thinking” (48), this footballer’s scenario arises out of an aerial perspective that depicts the actual spatial trajectory the player takes during the course of a game. It is a diagram that is digitally encoded via a sensor on the footballer’s body, and being an electronically encoded diagram it can also make available multiple sets of data such as speed, heartbeat, blood pressure, maybe even brain-wave patterns. From this limited point of view there is only one footballer’s playing trajectory to consider; various groupings within the team, the whole team itself, and the diagrammatological depiction of its games with various other teams might also be possible. This singular imagining though is itself an actuality: as a diagram it is encoded as a graphic image by a satellite hovering around the earth with a Global Positioning System (GPS) reading the sensor attached to the footballer which then digitally encodes this diagrammatological trajectory for appraisal later by the player, coach, team and management. In one respect, this practice is another example of a willing self-surveillance critical to explaining the reflexive subject and its attribute of continuous self-improvement. According to Docker, Official Magazine of the Fremantle Football Club, this is a technique the club uses as a part of game/play assessment, a system that can provide a “running map” for each player equipped with such a tracking device during a game. As the Fremantle Club’s Strength and Conditioning Coach Ben Tarbox says of this tactic, “We’re getting a physiological profile that has started to build a really good picture of how individual players react during a game” (21). With a little extra effort (and some sizeable computer processing grunt) this two dimensional linear graphic diagram of a footballer working the football ground could also form the raw material for a three-dimensional animation, maybe a virtual reality game, even a hologram. It could also be used to sideline a non-performing player. Now try another related but different imagining: what if this diagrammatological trajectory could be enlarged a little to include the possibility that this same player’s movements could be mapped out by the idea of home-and-away games; say over the course of a season, maybe even a whole career, for instance? No doubt, a wide range of differing diagrammatological perspectives might suggest themselves. My own particular refinement of this movement/stasis on the footballer’s part suggests my own distinctive comings and goings to and from my own specific piece of home country. And in this incessantly domestic/real world reciprocity, in this diurnally repetitive leaving and coming back to home country, might it be plausible to think of “Home as Capital of the Region”? If, as Walter Benjamin suggests in the prelude to his monumental Arcades Project, “Paris — the Capital of the Nineteenth Century,” could it be that both in and through my comings and goings to and from this selfsame home country, my own burgeoning sense of regionality is constituted in every minute-by-minutiae of lived experience? Could it be that this feeling about home is manifested in my every day-to-night manoeuvre of home-and-away-and-away-and-home-making, of every singular instance of exit, play/engage, and the return home? “Home, Capital of the Region” then examines the idea that my home is that part of the country which is the still-point of eternal return, the bedrock to which I retreat after the daily grind, and the point from which I start out and do it all again the next day. It employs, firstly, this ‘diagrammatological’ perspective to illustrate the point that this stasis/movement across country can make an electronic record of my own psychic self-surveillance and actualisation in-situ. And secondly, the architectural plan of the domestic home (examined through the perspective of critical regionalism) is used as a conduit to illustrate how I am physically embedded in country. Lastly, intermingling these digressive threads is chora, Plato’s notion of embodied place and itself an ancient regional rendering of this eternal return to the beginning, the place where the essential diversity of country decisively enters the soul. Chora: Core of Regionality Kevin Lynch writes that, “Our senses are local, while our experience is regional” (10), a combination that suggests this regional emphasis on home-and-away-making might be a useful frame of reference (simultaneously spatiotemporal, both a visceral and encoded communication) for me to include as a crucial vector in my own life-long learning package. Regionality (as, variously, a sub-generic categorisation and an extension/concentration of nationality, as well as a recently re-emerged friend/antagonist to a global understanding) infuses my world of home with a grounded footing in country, one that is a site of an Eternal Return to the Beginning in the micro-world of the everyday. This is a point John Sallis discusses at length in his analysis of Plato’s Timaeus and its founding notion of regionality: chora. More extended absences away from home-base are of course possible but one’s return to home on most days and for most nights is a given of post/modern, maybe even of ancient everyday experience. Even for the continually shifting nomad, nightfall in some part of the country brings the rest and recreation necessary for the next day’s wanderings. This fundamental question of an Eternal Return to the Beginning arises as a crucial element of the method in Plato’s Timaeus, a seemingly “unstructured” mythic/scientific dialogue about the origins and structure of both the psychically and the physically implaced world. In the Timaeus, “incoherence is especially obvious in the way the natural sequence in which a narrative would usually unfold is interrupted by regressions, corrections, repetitions, and abrupt new beginnings” (Gadamer 160). Right in the middle of the Timaeus, in between its sections on the “Work of Reason” and the “Work of Necessity”, sits chora, both an actual spatial and bodily site where my being intersects with my becoming, and where my lived life criss-crosses the various arts necessary to articulating a recorded version of that life. Every home is a grounded chora-logical timespace harness guiding its occupant’s thoughts, feelings and actions. My own regionally implaced chora (an example of which is the diagrammatological trajectory already outlined above as my various everyday comings and goings, of me acting in and projecting myself into context) could in part be understood as a graphical realisation of the extent of my movements and stationary rests in my own particular timespace trajectory. The shorthand for this process is ‘embedded’. Gregory Ulmer writes of chora that, “While chorography as a term is close to choreography, it duplicates a term that already exists in the discipline of geography, thus establishing a valuable resonance for a rhetoric of invention concerned with the history of ‘place’ in relation to memory” (Heuretics 39, original italics). Chorography is the geographic discipline for the systematic study and analysis of regions. Chora, home, country and regionality thus form an important multi-dimensional zone of interplay in memorialising the game of everyday life. In light of these observations I might even go so far as to suggest that this diagrammatological trajectory (being both digital and GPS originated) is part of the increasingly electrate condition that guides the production of knowledge in any global/regional context. This last point is a contextual connection usefully examined in Alan J. Scott’s Regions and the World Economy: The Coming Shape of Global Production, Competition, and Political Order and Michael Storper’s The Regional World: Territorial Development in a Global Economy. Their analyses explicitly suggest that the symbiosis between globalisation and regionalisation has been gathering pace since at least the end of World War Two and the Bretton Woods agreement. Our emerging understanding of electracy also happens to be Gregory Ulmer’s part-remedy for shifting the ground under the intense debates surrounding il/literacy in the current era (see, in particular, Internet Invention). And, for Tony Bennett, Michael Emmison and John Frow’s analysis of “Australian Everyday Cultures” (“Media Culture and the Home” 57–86), it is within the home that our un.conscious understanding of electronic media is at its most intense, a pattern that emerges in the longer term through receiving telegrams, compiling photo albums, listening to the radio, home- and video-movies, watching the evening news on television, and logging onto the computer in the home-office, media-room or home-studio. These various generalisations (along with this diagrammatological view of my comings and goings to and from the built space of home), all point indiscriminately to a productive confusion surrounding the sedentary and nomadic opposition/conjunction. If natural spaces are constituted in nouns like oceans, forests, plains, grasslands, steppes, deserts, rivers, tidal interstices, farmland etc. (and each categorisation here relies on the others for its existence and demarcation) then built space is often seen as constituting its human sedentary equivalent. For Deleuze and Guatteri (in A Thousand Plateaus, “1227: Treatise on Nomadology — The War Machine”) these natural spaces help instigate a nomadic movement across localities and regions. From a nomadology perspective, these smooth spaces unsettle a scientific, numerical calculation, sometimes even aesthetic demarcation and order. If they are marked at all, it is by heterogenous and differential forces, energised through constantly oscillating intensities. A Thousand Plateaus is careful though not to elevate these smooth nomadic spaces over the more sedentary spaces of culture and power (372–373). Nonetheless, as Edward S. Casey warns, “In their insistence on becoming and movement, however, the authors of A Thousand Plateaus overlook the placial potential of settled dwelling — of […] ‘built places’” (309, original italics). Sedentary, settled dwelling centred on home country may have a crust of easy legibility and order about it but it also formats a locally/regionally specific nomadic quality, a point underscored above in the diagrammatological perspective. The sedentary tendency also emerges once again in relation to home in the architectural drafting of the domestic domicile. The Real Estate Revolution When Captain Cook planted the British flag in the sand at Botany Bay in 1770 and declared the country it spiked as Crown Land and henceforth will come under the ownership of an English sovereign, it was also the moment when white Australia’s current fascination with real estate was conceived. In the wake of this spiking came the intense anxiety over Native Title that surfaced in late twentieth century Australia when claims of Indigenous land grabs would repossess suburban homes. While easily dismissed as hyperbole, a rhetorical gesture intended to arouse this very anxiety, its emergence is nonetheless an indication of the potential for political and psychic unsettling at the heart of the ownership and control of built place, or ‘settled dwelling’ in the Australian context. And here it would be wise to include not just the gridded, architectural quality of home-building and home-making, but also the home as the site of the family romance, another source of unsettling as much as a peaceful calming. Spreading out from the boundaries of the home are the built spaces of fences, bridges, roads, railways, airport terminals (along with their interconnecting pathways), which of course brings us back to the communications infrastructure which have so often followed alongside the development of transport infrastructure. These and other elements represent this conglomerate of built space, possibly the most significant transformation of natural space that humanity has brought about. For the purposes of this meditation though it is the more personal aspect of built space — my home and regional embeddedness, along with their connections into the global electrosphere — that constitutes the primary concern here. For a sedentary, striated space to settle into an unchallenged existence though requires a repression of the highest order, primarily because of the home’s proximity to everyday life, of the latter’s now fading ability to sometimes leave its presuppositions well enough alone. In settled, regionally experienced space, repressions are more difficult to abstract away, they are lived with on a daily basis, which also helps to explain the extra intensity brought to their sometimes-unsettling quality. Inversely, and encased in this globalised electro-spherical ambience, home cannot merely be a place where one dwells within avoiding those presuppositions, I take them with me when I travel and they come back with me from afar. This is a point obliquely reflected in Pico Iyer’s comment that “Australians have so flexible a sense of home, perhaps, that they can make themselves at home anywhere” (185). While our sense of home may well be, according to J. Douglas Porteous, “the territorial core” of our being, when other arrangements of space and knowledge shift it must inevitably do so as well. In these shifts of spatial affiliation (aided and abetted by regionalisation, globalisation and electronic knowledge), the built place of home can no longer be considered exclusively under the illusion of an autonomous sanctuary wholly guaranteed by capitalist property relations, one of the key factors in its attraction. These shifts in the cultural, economic and psychic relation of home to country are important to a sense of local and regional implacement. The “feeling” of autonomy and security involved in home occupation and/or ownership designates a component of this implacement, a point leading to Eric Leed’s comment that, “By the sixteenth century, literacy had become one of the definitive signs — along with the possession of property and a permanent residence — of an independent social status” (53). Globalising and regionalising forces make this feeling of autonomy and security dynamic, shifting the ground of home, work-place practices and citizenship allegiances in the process. Gathering these wide-ranging forces impacting on psychic and built space together is the emergence of critical regionalism as a branch of architectonics, considered here as a theory of domestic architecture. Critical Regionality Critical regionalism emerged out of the collective thinking of Liane Lefaivre and Alexander Tzonis (Tropical Architecture; Critical Regionalism), and as these authors themselves acknowledge, was itself deeply influenced by the work of Lewis Mumford during the first part of the twentieth century when he was arguing against the authority of the international style in architecture, a style epitomised by the Bauhaus movement. It is Kenneth Frampton’s essay, “Towards a Critical Regionalism: Six Points for an Architecture of Resistance” that deliberately takes this question of critical regionalism and makes it a part of a domestic architectonic project. In many ways the ideas critical regionalism espouses can themselves be a microcosm of this concomitantly emerging global/regional polis. With public examples of built-form the power of the centre is on display by virtue of a building’s enormous size and frequently high-cultural aesthetic power. This is a fact restated again and again from the ancient world’s agora to Australia’s own political bunker — its Houses of Parliament in Canberra. While Frampton discusses a range of aspects dealing with the universal/implaced axis across his discussion, it is points five and six that deserve attention from a domestically implaced perspective. Under the sub-heading, “Culture Versus Nature: Topography, Context, Climate, Light and Tectonic Form” is where he writes that, Here again, one touches in concrete terms this fundamental opposition between universal civilization and autochthonous culture. The bulldozing of an irregular topography into a flat site is clearly a technocratic gesture which aspires to a condition of absolute placelessness, whereas the terracing of the same site to receive the stepped form of a building is an engagement in the act of “cultivating” the site. (26, original italics) The “totally flat datum” that the universalising tendency sometimes presupposes is, within the critical regionalist perspective, an erroneous assumption. The “cultivation” of a site for the design of a building illustrates the point that built space emerges out of an interaction between parallel phenomena as they contrast and/or converge in a particular set of timespace co-ordinates. These are phenomena that could include (but are not limited to) geomorphic data like soil and rock formations, seismic activity, inclination and declension; climatic considerations in the form of wind patterns, temperature variations, rainfall patterns, available light and dark, humidity and the like; the building context in relation to the cardinal points of north, south, east, and west, along with their intermediary positions. There are also architectural considerations in the form of available building materials and personnel to consider. The social, psychological and cultural requirements of the building’s prospective in-dwellers are intermingled with all these phenomena. This is not so much a question of where to place the air conditioning system but the actuality of the way the building itself is placed on its site, or indeed if that site should be built on at all. A critical regionalist building practice, then, is autochthonous to the degree that a full consideration of this wide range of in-situ interactions is taken into consideration in the development of its design plan. And given this autochthonous quality of the critical regionalist project, it also suggests that the architectural design plan itself (especially when it utilised in conjunction with CAD and virtual reality simulations), might be the better model for designing electrate-centred projects rather than writing or even the script. The proliferation of ‘McMansions’ across many Australian suburbs during the 1990s (generally, oversized domestic buildings designed in the abstract with little or no thought to the above mentioned elements, on bulldozed sites, with powerful air-conditioning systems, and no verandas or roof eves to speak of) demonstrates the continuing influence of a universal, centralising dogma in the realm of built place. As summer temperatures start to climb into the 40°C range all these air-conditioners start to hum in unison, which in turn raises the susceptibility of the supporting infrastructure to collapse under the weight of an overbearing electrical load. The McMansion is a clear example of a built form that is envisioned more so in a drafting room, a space where the architect is remote-sensing the locational specificities. In this envisioning (driven more by a direct line-of-sight idiom dominant in “flat datum” and economic considerations rather than architectural or experiential ones), the tactile is subordinated, which is the subject of Frampton’s sixth point: It is symptomatic of the priority given to sight that we find it necessary to remind ourselves that the tactile is an important dimension in the perception of built form. One has in mind a whole range of complementary sensory perceptions which are registered by the labile body: the intensity of light, darkness, heat and cold; the feeling of humidity; the aroma of material; the almost palpable presence of masonry as the body senses it own confinement; the momentum of an induced gait and the relative inertia of the body as it traverses the floor; the echoing resonance of our own footfall. (28) The point here is clear: in its wider recognition of, and the foregrounding of my body’s full range of sensate capacities in relation to both natural and built space, the critical regionalist approach to built form spreads its meaning-making capacities across a broader range of knowledge modalities. This tactility is further elaborated in more thoroughly personal ways by Margaret Morse in her illuminating essay, “Home: Smell, Taste, Posture, Gleam”. Paradoxically, this synaesthetic, syncretic approach to bodily meaning-making in a built place, regional milieu intensely concentrates the site-centred locus of everyday life, while simultaneously, the electronic knowledge that increasingly underpins it expands both my body’s and its region’s knowledge-making possibilities into a global gestalt, sometimes even a cosmological one. It is a paradoxical transformation that makes us look anew at social, cultural and political givens, even objective and empirical understandings, especially as they are articulated through national frames of reference. Domestic built space then is a kind of micro-version of the multi-function polis where work, pleasure, family, rest, public display and privacy intermingle. So in both this reduction and expansion in the constitution of domestic home life, one that increasingly represents the location of the production of knowledge, built place represents a concentration of energy that forces us to re-imagine border-making, order, and the dynamic interplay of nomadic movement and sedentary return, a point that echoes Nicolas Rothwell’s comment that “every exile has in it a homecoming” (80). Albeit, this is a knowledge-making milieu with an expanded range of modalities incorporated and expressed through a wide range of bodily intensities not simply cognitive ones. Much of the ambiguous discontent manifested in McMansion style domiciles across many Western countries might be traced to the fact that their occupants have had little or no say in the way those domiciles have been designed and/or constructed. In Heidegger’s terms, they have not thought deeply enough about “dwelling” in that building, although with the advent of the media room the question of whether a “building” securely borders both “dwelling” and “thinking” is now open to question. As anxieties over border-making at all scales intensifies, the complexities and un/sureties of natural and built space take ever greater hold of the psyche, sometimes through the advance of a “high level of critical self-consciousness”, a process Frampton describes as a “double mediation” of world culture and local conditions (21). Nearly all commentators warn of a nostalgic, romantic or a sentimental regionalism, the sum total of which is aimed at privileging the local/regional and is sometimes utilised as a means of excluding the global or universal, sometimes even the national (Berry 67). Critical regionalism is itself a mediating factor between these dispositions, working its methods and practices through my own psyche into the local, the regional, the national and the global, rejecting and/or accepting elements of these domains, as my own specific context, in its multiplicity, demands it. If the politico-economic and cultural dimensions of this global/regional world have tended to undermine the process of border-making across a range of scales, we can see in domestic forms of built place the intense residue of both their continuing importance and an increased dependency on this electro-mediated world. This is especially apparent in those domiciles whose media rooms (with their satellite dishes, telephone lines, computers, television sets, games consuls, and music stereos) are connecting them to it in virtuality if not in reality. Indeed, the thought emerges (once again keeping in mind Eric Leed’s remark on the literate-configured sense of autonomy that is further enhanced by a separate physical address and residence) that the intense importance attached to domestically orientated built place by globally/regionally orientated peoples will figure as possibly the most viable means via which this sense of autonomy will transfer to electronic forms of knowledge. If, however, this here domestic habitué turns his gaze away from the screen that transports me into this global/regional milieu and I focus my attention on the physicality of the building in which I dwell, I once again stand in the presence of another beginning. This other beginning is framed diagrammatologically by the building’s architectural plans (usually conceived in either an in-situ, autochthonous, or a universal manner), and is a graphical conception that anchors my body in country long after the architects and builders have packed up their tools and left. This is so regardless of whether a home is built, bought, rented or squatted in. Ihab Hassan writes that, “Home is not where one is pushed into the light, but where one gathers it into oneself to become light” (417), an aphorism that might be rephrased as follows: “Home is not where one is pushed into the country, but where one gathers it into oneself to become country.” For the in-and-out-and-around-and-about domestic dweller of the twenty-first century, then, home is where both regional and global forms of country decisively enter the soul via the conduits of the virtuality of digital flows and the reality of architectural footings. 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