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Статті в журналах з теми "Short time crosscorrelation technique":
1
Zhang, Zhendong, Tariq Alkhalifah, Zedong Wu, Yike Liu, Bin He, and Juwon Oh. "Normalized nonzero-lag crosscorrelation elastic full-waveform inversion." GEOPHYSICS 84, no. 1 (January 1, 2019): R1—R10. http://dx.doi.org/10.1190/geo2018-0082.1.
Анотація:
Full-waveform inversion (FWI) is an attractive technique due to its ability to build high-resolution velocity models. Conventional amplitude-matching FWI approaches remain challenging because the simplified computational physics used does not fully represent all wave phenomena in the earth. Because the earth is attenuating, a sample-by-sample fitting of the amplitude may not be feasible in practice. We have developed a normalized nonzero-lag crosscorrelataion-based elastic FWI algorithm to maximize the similarity of the calculated and observed data. We use the first-order elastic-wave equation to simulate the propagation of seismic waves in the earth. Our proposed objective function emphasizes the matching of the phases of the events in the calculated and observed data, and thus, it is more immune to inaccuracies in the initial model and the difference between the true and modeled physics. The normalization term can compensate the energy loss in the far offsets because of geometric spreading and avoid a bias in estimation toward extreme values in the observed data. We develop a polynomial-type weighting function and evaluate an approach to determine the optimal time lag. We use a synthetic elastic Marmousi model and the BigSky field data set to verify the effectiveness of the proposed method. To suppress the short-wavelength artifacts in the estimated S-wave velocity and noise in the field data, we apply a Laplacian regularization and a total variation constraint on the synthetic and field data examples, respectively.
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de Franco, Roberto, Grazia Caielli, Alberto Villa, Federico Agliardi, and Francesco Franchino. "Ground-penetrating radar refraction imaging with stacked refraction convolution section method." GEOPHYSICS 81, no. 5 (September 2016): H33—H45. http://dx.doi.org/10.1190/geo2015-0475.1.
Анотація:
We have evaluated a technique initially developed for the seismic refraction imaging, the stacked refraction convolution section (SRCS), which we have properly adapted to process ground-penetrating radar (GPR) refraction data. Through a mute operation, the subsurface refracting signals, recorded by the receiver from two reciprocal sources, are selected. Following that, a velocity analysis by means of the crosscorrelation of the refracted signals and the convolution of resulting traces is performed. The refraction image in intercept times is successively derived from three main steps, namely: (1) the convolution of the subsurface refracted signals, (2) the crosscorrelation of convolved trace with the reciprocal refracted signal, and (3) the stacking of crosscorrelated traces over all source couples. The technique is not only suitable for the processing of GPR data acquired with two or more reciprocal common source profiles but it is also convenient for its low acquisition cost in addition to the simplicity of software implementation and short processing times. We have evaluated the technique on a real GPR data set to characterize a near-surface morphostructure associated with a deep-seated gravitational slope deformation affecting Mt. Watles (Upper Venosta Valley, Italy). Results of the SRCS technique were validated against the direct trenching log data up to approximately 3 m in depth and complemented by the reflection processing outputs of common-source and common-offset data acquired along the line. The SRCS and common-midpoint processing provide the best reconstruction of the subsurface morphology of a shallow basement (approximately [Formula: see text] depth), characterized by a velocity range of [Formula: see text] and made of strongly to moderately weathered paragneiss. The full-wave modeling response of the reconstructed model demonstrates good agreement with the recorded signals.
3
Nakata, Nori, and Gregory C. Beroza. "Reverse time migration for microseismic sources using the geometric mean as an imaging condition." GEOPHYSICS 81, no. 2 (March 1, 2016): KS51—KS60. http://dx.doi.org/10.1190/geo2015-0278.1.
Анотація:
Time reversal is a powerful tool used to image directly the location and mechanism of passive seismic sources. This technique assumes seismic velocities in the medium and propagates time-reversed observations of ground motion at each receiver location. Assuming an accurate velocity model and adequate array aperture, the waves will focus at the source location. Because we do not know the location and the origin time a priori, we need to scan the entire 4D image (3D in space and 1D in time) to localize the source, which makes time-reversal imaging computationally demanding. We have developed a new approach of time-reversal imaging that reduces the computational cost and the scanning dimensions from 4D to 3D (no time) and increases the spatial resolution of the source image. We first individually extrapolate wavefields at each receiver, and then we crosscorrelate these wavefields (the product in the frequency domain: geometric mean). This crosscorrelation creates another imaging condition, and focusing of the seismic wavefields occurs at the zero time lag of the correlation provided the velocity model is sufficiently accurate. Due to the analogy to the active-shot reverse time migration (RTM), we refer to this technique as the geometric-mean RTM or GmRTM. In addition to reducing the dimension from 4D to 3D compared with conventional time-reversal imaging, the crosscorrelation effectively suppresses the side lobes and yields a spatially high-resolution image of seismic sources. The GmRTM is robust for random and coherent noise because crosscorrelation enhances signal and suppresses noise. An added benefit is that, in contrast to conventional time-reversal imaging, GmRTM has the potential to be used to retrieve velocity information by analyzing time and/or space lags of crosscorrelation, which is similar to what is done in active-source imaging.
4
Yung, S. K., and Luc T. Ikelle. "An example of seismic time picking by third‐order bicoherence." GEOPHYSICS 62, no. 6 (November 1997): 1947–52. http://dx.doi.org/10.1190/1.1444295.
Анотація:
Conventional seismic time‐delay estimation relies on the crosscorrelation that quantifies the similarities between two measurements in the second‐order time domain. When the noise correlation in the measurements is considerable, the correlation peak can be substantially distorted, resulting in imprecise and even biased estimation of the time delay. The synthetic data computed by Ikelle et al. (1993) and Ikelle and Yung (1994) in their studies of wave propagation through random media provide a good example of data with considerable noise correlation. In picking the arrival times in this data set, we found that the crosscorrelation technique suffers both from the severely restricted signal bandwidth and from the presence of coda. Here we present an alternative approach involving high‐resolution nonparametric time‐delay estimation in the third‐order domain.
5
Arrowsmith, Stephen J., and Leo Eisner. "A technique for identifying microseismic multiplets and application to the Valhall field, North Sea." GEOPHYSICS 71, no. 2 (March 2006): V31—V40. http://dx.doi.org/10.1190/1.2187804.
Анотація:
A fast, fully automatic technique to identify microseismic multiplets in borehole seismic data is developed. The technique may be applied in real time to either continuous data or detected-event data for a number of three-component receivers and does not require prior information such as P- or S-wave time picks. Peak crosscorrelation coefficients, evaluated in the frequency domain, are used as the basis for identifying microseismic doublets. The peak crosscorrelation coefficient at each receiver is evaluated with a weighted arithmetic average of the normalized correlation coefficients of each component. Each component is weighted by the maximum amplitude of the signal for that component to reduce the effect of noise on the calculations. The weighted average correlations are averaged over all receivers in a time window centered on a fixed lag time. The size of the time window is determined from the dominant period in the signal, and the lag time is the time that maximizes the average correlation coefficient. The technique is applied to a three-component passive seismic data set recorded at the Valhall field, North Sea. A large number of microseismic doublets are identified that can be grouped into multiplets, reducing the total number of absolute event locations by a factor of two. Seven large multiplets reflect the repeated multiple rerupturing (up to 30 times on a single fault) and significant stress release. Two major faults dominate the seismic activity, causing at least one-fourth of the observed events.
6
Rothman, Daniel H. "Automatic estimation of large residual statics corrections." GEOPHYSICS 51, no. 2 (February 1986): 332–46. http://dx.doi.org/10.1190/1.1442092.
Анотація:
Conventional approaches to residual statics estimation obtain solutions by performing linear inversion of observed traveltime deviations. A crucial component of these procedures is picking time delays; gross errors in these picks are known as “cycle skips” or “leg jumps” and are the bane of linear traveltime inversion schemes. This paper augments Rothman (1985), which demonstrated that the estimation of large statics in noise‐contaminated data is posed better as a nonlinear, rather than as a linear, inverse problem. Cycle skips then appear as local (secondary) minima of the resulting nonlinear optimization problem. In the earlier paper, a Monte Carlo technique from statistical mechanics was adapted to perform global optimization, and the technique was applied to synthetic data. Here I present an application of a similar Monte Carlo method to field data from the Wyoming Overthrust belt. Key changes, however, have led to a more efficient and practical algorithm. The new technique performs explicit crosscorrelation of traces. Instead of picking the peaks of these crosscorrelation functions, the method transforms the crosscorrelation functions to probability distributions and then draws random numbers from the distributions. Estimates of statics are now iteratively updated by this procedure until convergence to the optimal stack is achieved. Here I also derive several theoretical properties of the algorithm. The method is expressed as a Markov chain, in which the equilibrium (steady‐state) distribution is the Gibbs distribution of statistical mechanics.
7
Moriya, Hirokazu, and Hiroaki Niitsuma. "Precise detection of a P‐wave in low S/N signal by using time‐frequency representations of a triaxial hodogram." GEOPHYSICS 61, no. 5 (September 1996): 1453–66. http://dx.doi.org/10.1190/1.1444071.
Анотація:
We have developed a signal processing technique for three‐component microseismic data that allows the precise determination of P‐wave arrival times. The method is based on a time‐frequency representation of the signal that allows the evaluation of the 3-D particle motion from seismic waves in both time and frequency domains. A spectral matrix is constructed using the time‐frequency distributions. A crosscorrelation coefficient for the three‐component signal is derived through eigenvalue analysis of the spectral matrix. The P‐wave arrival time is determined through a statistical test of hypotheses using the crosscorrelation coefficient. This signal processing method is evaluated using a synthetic signal and it is compared to the local stationary autoregressive method for determining P‐wave arrival times. We also show that the proposed method is capable of determining the arrival time of a synthetic P‐wave to within 1 ms (five points in the discrete time series) in the presence of a signal‐to‐noise ratio of −5dB. The method can detect the arrival time of different frequency components of the P‐wave, which is a possibility for the evaluation of velocity dispersion of the seismic wave. We demonstrate the feasibility of the method further by applying it to microseismic data from a geothermal field.
8
Poletto, Flavio, and Biancamaria Farina. "Synthesis and composition of virtual-reflector (VR) signals." GEOPHYSICS 75, no. 4 (July 2010): SA45—SA59. http://dx.doi.org/10.1190/1.3433311.
Анотація:
The virtual-reflector (VR) method creates new seismic signals by processing seismic traces that have been produced by impulsive or transient sources. Under proper recording-coverage conditions, this technique allows a seismogram to be obtained as if there were an ideal reflector at the position of the receivers (or sources). Only the reflected signals from this reflector are synthesized. The algorithm is independent of the medium-velocity model and is based on convolution of the recorded traces and on subsequent integration of the crossconvolved signals in the receiver (or source) space. We use the VR method in combination with seismic interferometry (SI) by crosscorrelation to compose corresponding virtual-reflection events in seismic exploration. For that purpose, we use weighted-summation and data-crossfiltering approaches. In applying these combination methods, we assume common travel paths in the virtual signals, taking into account that VR and SI by crosscorrelation imply different stationary-phase conditions. We present applications in which we combine the SI-by-crosscorrelation and VR signals to (1) suppress unwanted effects, such as marine water-layer reflections in synthetic ocean-bottom-cable data, and (2) obtain virtual two-way traveltime seismograms with real borehole data from walkaway vertical seismic profiling (VSP). Analysis shows that time gating and selection of reflection events are critical steps in processing water-layer multiples.
9
Zabihi Naeini, Ehsan, Henning Hoeber, Gordon Poole, and Hamid R. Siahkoohi. "Simultaneous multivintage time-shift estimation." GEOPHYSICS 74, no. 5 (September 2009): V109—V121. http://dx.doi.org/10.1190/1.3177002.
Анотація:
Time-shift estimation is a key step in seismic time-lapse processing as well as in many other signal-processing applications. We consider the time-shift problem in the setting of multiple repeat surveys that must be aligned consistently. We introduce an optimized least-squares method based on the Taylor expansion for estimating two-vintage time shifts and compare it to crosscorrelation. The superiority of the proposed algorithm is demonstrated with synthetic data and residual time-lapse matching on a U. K. continental shelf data set. We then discuss the shortcomings of cascaded time alignment in multiple repeat monitor surveys and propose an approach to estimate simultaneous multivintage time shifts that uses a constrained least-squares technique combined with elements of network theory. The resulting time shifts are consistent across all vintages in a least-squares sense, improving overall alignment when compared to the classical flow of alignment in a cascaded manner. The method surpasses the cascaded approach, as noted with sample synthetic and three-vintage U. K. continental shelf time-lapse data sets.
10
Mueller, Moritz B., David F. Halliday, Dirk-Jan van Manen, and Johan O. A. Robertsson. "Source signature encoding of a vertical source array to separate the emitted direct wave from its ghost." GEOPHYSICS 83, no. 4 (July 1, 2018): P9—P18. http://dx.doi.org/10.1190/geo2017-0593.1.
Анотація:
Marine air-gun sources can be sequence-encoded by firing their individual elements independently over a short period of time. Using near-orthogonal firing sequences, whose crosscorrelation is minimal, as encoding sequences for multiple sets of air-gun sources, enables us to exploit their orthogonality as a separation feature. We find that, by distributing air guns over depths from 5 to 30 m, firing sequences can be designed whose direct, down-going wavefield is close to orthogonal to its source-ghost wavefield. The fundamentally new aspect of this approach is that the source-ghost signal is no longer just a time-delayed, opposite-polarity version of the down-going wavefield, but due to the different air-gun depths results in a different source sequence. This enables the consideration of the ghost wavefield as a separate source. We generate a set of such firing sequences by minimizing the crosscorrelation of these wavefields and optimizing their respective autocorrelations to achieve sharp peaks. The obtained, optimized firing sequences are then used for marine seismic source encoding. By adapting a multifrequency algorithm originally developed for simultaneous source separation, we determine that the ghost-source wavefield can be separated as a separate source from the direct, down-going wavefield.
Дисертації з теми "Short time crosscorrelation technique":
1
Patel, Tejashkumar. "Anaysis of the Trend of Historical Temperature and Historic CO2 Levels Over the Past 800,000 Years by Short Time Cross Correlation Technique." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105031.
Анотація:
Carbon Dioxide concentration in Earth’s atmosphere is currently at 417 Parts permillion (ppm) and keep rising. Historic CO2 levels and historic temperature levels hasbeen cycling over the past 800,000 years. To study the trend of CO2 and temperatureover past 800,00 years, one needs to find out the relation between historic CO2 andhistoric temperature levels. In this project, we will perform different tasks to identify thetrend influencer between CO2 and temperature. Cross correlation technique is used tofind out the relation between two random signals. Temperature and CO2 data areconsidered as two random signals. Re-sampling by Interpolation techniques are imposedon both CO2 and temperature data for the change of sampling rate. Short time crosscorrelation technique is employed on the CO2 and temperature data over the differenttime windows to find out the time lag. Time lag refers to how far the signals are offset.
2
Rezaiesarlak, Reza. "Design and Detection Process in Chipless RFID Systems Based on a Space-Time-Frequency Technique." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/73506.
Анотація:
Recently, Radio Frequency Identification (RFID) technology has become commonplace in many applications. It is based on storing and remotely retrieving the data embedded on the tags. The tag structure can be chipped or chipless. In chipped tags, an integrated IC attached to the antenna is biased by an onboard battery or interrogating signal. Compared to barcodes, the chipped tags are expensive because of the existence of the chip. That was why chipless RFID tags are demanded as a cheap candidate for chipped RFID tags and barcodes. As its name expresses, the geometry of the tag acts as both modulator and scatterer. As a modulator, it incorporates data into the received electric field launched from the reader antenna and reflects it back to the receiving antenna. The scattered signal from the tag is captured by the antenna and transferred to the reader for the detection process.
By employing the singularity expansion method (SEM) and the characteristic mode theory (CMT), a systematic design process is introduced by which the resonant and radiation characteristics of the tag are monitored in the pole diagram versus structural parameters. The antenna is another component of the system. Taking advantage of ultra-wideband (UWB) technology, it is possible to study the time and frequency domain characteristics of the antenna used in chipless RFID system. A new omni-directional antenna element useful in wideband and UWB systems is presented. Then, a new time-frequency technique, called short-time matrix pencil method (STMPM), is introduced as an efficient approach for analyzing various scattering mechanisms in chipless RFID tags. By studying the performance of STMPM in early-time and late-time responses of the scatterers, the detection process is improved in cases of multiple tags located close to each other. A space-time-frequency algorithm is introduced based on STMPM to detect, identify, and localize multiple multi-bit chipless RFID tags in the reader area. The proposed technique has applications in electromagnetic and acoustic-based detection of targets.Ph. D.
3
Risius, Steffen [Verfasser], Andreas [Akademischer Betreuer] Dillmann, Andreas [Gutachter] Dillmann, and Martin [Gutachter] Rein. "Development of a time-resolved quantitative surface-temperature measurement technique and its application in short-duration wind tunnel testing / Steffen Risius ; Gutachter: Andreas Dillmann, Martin Rein ; Betreuer: Andreas Dillmann." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1163109029/34.
4
Löfgren, Isabelle. "Interharmonic Analysis of Sustainable Energy Sources and Loads : Comparing two signal processing methods for estimation of interharmonics." Thesis, Högskolan Dalarna, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-34236.
Анотація:
In this report, studies on interharmonics from three different measurement sites are performed. The first site is a wind park with three turbines, where the measurements are performed at the point of common coupling of these three. The second site is a network which consists of a PV inverter and two types of EV chargers – a DC charger or an AC charger. Measurements are performed with three different set-ups in this site – only AC charger connected, only DC charger connected, and AC charger and PV inverter connected simultaneously. The third site where measurements were made is a microgrid using frequency control in order to signal how the microgrid should operate at the moment. The interharmonic analysis was conducted using desynchronized processing technique (DP) and Sliding-Window Estimation of Signal Parameters via Rotational Invariance Techniques (SlidingWindow ESPRIT or SWESPRIT). The result from the wind park is that closely and evenly spaced interharmonics can be seen when the current suddenly increases (could be fast variations in wind speed). It is however uncertain if these interharmonics are caused by spectral leakage or not since SWESPRIT estimates the fundamental frequency to vary drastically when wind speed varies. It is observed that the SWESPRIT estimation of fundamental frequency could be caused by sudden changes in phase angle as the current varies. Further investigation and analysis are needed. The result from the measurements on the site with EV chargers and a PV inverter is that eight distinct patterns can be observed. Some patterns appear to come from the upstream grid, while some appear to be caused by either one of the EV chargers or the PV inverter, or interaction between them. Further studies are needed. The result from the microgrid measurements is that two distinct patterns at high frequencies (above 1000 Hz) can be observed during grid connected mode and island mode, respectively. During transitions between grid connection and island mode or vice versa, the fundamental frequency varies drastically, and it is therefore hard to analyse potential interharmonics and draw inferences. Further studies are needed. Advantages and disadvantages, as well as ideas for improvements, of the two applied signal processing methods are discussed throughout the different case-studies.
5
Nevoux, Sandra. "Trois Essais sur l'Activité Partielle." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX010.
Анотація:
Le premier chapitre dresse un état des lieux de la littérature relative l’activité partielle et introduit les trois questions de recherche développées dans cette thèse, à savoir la diffusion locale du recours à l’activité partielle en France au cours de la période2003-2014, l’effet de l’activité partielle sur l’emploi en France au cours de la Grande Récession 2008-2009 et l’effet des réformes de 2012-2013 de l’activité partielle et du recours récurrent à ce dispositif sur la production agrégée en France. Dans le second chapitre, nous mettons en lumière la diffusion locale du recours à l’activité partielle en France sur la période 2003-2014. Pour ce faire, nous évaluons l’effet de la proximité géographique d’établissements ayant déjà recouru à l’activité partielle par le passé sur le recours à l’activité partielle d’un établissement pour la première fois sur la période 2003-2014. En effet, nous soutenons que l’information dont disposent les établissements au sujet du dispositif et de sa procédure, notamment par le biais des établissements voisins, constitue un déterminant essentiel du recours à l’activité partielle. Nos faits stylisés révèlent que le recours à l’activité partielle est concentré au niveau géographique et que cette concentration revêt un caractère dynamique. Nous utilisons comme mesure de la diffusion locale de l’information relative à l’activité partielle un indice de concentration spatiale (fondé sur les distances inter-établissements) et prenons en compte les autres caractéristiques des établissements afin de distinguer l’effet de cette transmission d’information d’autres déterminants du recours au dispositif et ainsi mettre en évidence son impact sur le recours à l’activité partielle d’un établissement pour la première fois. Nos résultats montrent l’importance de la diffusion locale de l’information relative à l’activité partielle, que cette diffusion décroît dans les premiers kilomètres et que cette information transite à la fois au sein d’un secteur donné et entre secteurs.Dans le troisième chapitre, nous évaluons l’effet de l’activité partielle sur l’emploi en France an cours de la Grande Récession 2008-2009. Nous développons un modèle théorique suivant lequel l’effet de l’activité partielle varie selon la situation financière des entreprises. Pour des entreprises faisant face à une forte diminution de leur chiffre d’affaires, l’activité partielle permet de sauvegarder l’emploi, tandis que pour des entreprises dont la réduction du chiffre d’affaires est modérée, l’activité partielle entraîne une diminution des heures travaillées sans pour autant préserver l’emploi. Ces effets théoriques contrastés sont confirmés par nos résultats empiriques, qui mettent en évidence que l’activité partielle a réduit le nombre d’emplois détruits uniquement en cas de réduction importante du chiffre d’affaires mais n’a eu aucun effet significatif sur l’emploi pour les autres entreprises, qui représentent environ 40 % des utilisateurs de l’activité partielle. Ces effets d’aubaine, bien que considérables au regard du dispositif d’activité partielle, demeurent négligeables par rapport à d’autres mesures telles que les subventions salariales et à l’embauche. De plus, l’activité partielle n’a pas contribué à maintenir en vie des entreprises en difficultés structurelles. L’activité partielle a donc constitué un dispositif efficace à la sauvegarde de l’emploi en France au cours de la Grande Récession 2008-2009The literature review on short-time work presented in the first chapter underlines the motivation behind the three research questions developed in this dissertation, namely the local diffusion of short-time work, the impact of short-time work on employment during the great 2008-2009 recession in France, and the impact of the 2012-2013 reforms of short-time work and its recurrent use on aggregate production in France.In the second chapter, we assess the local diffusion of short-time work. We argue that the geographical proximity of establishments having already used short-time work in the past is a major information channel regarding this scheme. Relying on distance-based methods, our stylized facts highlight the spatial and dynamic concentration of short-time work use in France between 2002 and 2014. Our econometric analysis reveals that the local information about short-timework constitutes a determinant of its use, that it attenuates rapidly in the first kilometers and that this information is both transmitted within and between sectors. We interpret this significant spatial concentration of short-time use,after controlling for the determinants of short-time work at the establishment level, as an evidence of information spillovers.In the third chapter, we estimate the impact of short-time work on employment during the great 2008-2009 recession in France.The model we develop shows that the effect of short-time work varies depending on the financial situation of the firms. For firms facing a strong decline in their revenue, short-time work saves employment, whereas for firms facing a moderate decline in their revenue, short-time work entails a drop in hours worked without reducing job losses. These heterogeneous effects are confirmed by our empirical results, which demonstrate that short-time work has reduced the number of job losses for firms which faced dramatic drop in their revenue, but has had no significant impact on employment for the other firms. These windfall effects, although sizeable within the short-time workscheme, are negligible compared to other policies such as wage and hiring subsidies. Additionally, short-time work didn’t help structurally weak firms to survive. Hence, short-time work has been an efficient policy to save jobs during the great 2008-2009recession in France.In the fourth chapter, we evaluate the impact of the 2012-2013reforms of short-time work and its recurrent use on aggregate production in France. The 2012-2013 reforms have increased the generosity of short-time work and hence have suppressed the remaining cost supported by the firm. Our stylized facts highlight that short-time work is essentially used by a small number of firms in a recurrent way and this repeated use has aggravated following these reforms. The theoretical model we develop shows that such reforms of short-time work have entailed cross subsidies towards recurrent short-time work users and have reduced aggregate production compared to the social optimum.According to our model, the efficient policy should provide unemployment insurance benefits funded by experience rated employers’ contributions instead of short-time work benefits
6
Calavrezo, Oana. "Entre flexibilité et sécurité : l'accompagnement des entreprises et des mobilités professionnelles. : essais empiriques de microéconométrie du marché du travail." Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00490804.
Анотація:
La présente thèse contribue à la littérature empirique sur la flexicurité en se concentrant sur deux axes de recherche : l'utilisation du chômage partiel par les établissements et le rôle des trois " socles " de la flexicurité - contrat de travail, compétences et territoire (Freyssinet, 2006) - sur la sécurisation des parcours professionnels des individus. En rapport au premier axe, la thèse propose une méthodologie pour évaluer l'efficacité du chômage partiel. Selon deux critères d'efficacité (éviter les licenciements économiques et la disparition des établissements), le chômage partiel ne protège pas l'emploi et il n'est donc pas efficace. Entre 1995 et 2005, il est avant tout un outil de flexibilité. Il ne peut pas s'analyser comme un outil répondant aux principes de la flexicurité. Pour le deuxième axe, nous analysons comment les " socles " de la flexicurité sécurisent les parcours, en s'appuyant sur trois mobilités professionnelles : premier emploi-emploi, emploi-emploi et chômage-emploi. Nous soulignons le rôle central de l'emploi temporaire, des liens entre les entreprises et du lieu de résidence dans le processus de sécurisation des trajectoires. Nous montrons que : (i) les contrats temporaires ne sont pas un obstacle à la stabilisation dans l'emploi, dès lors que leur durée est suffisamment longue ; (ii) les réseaux d'entreprises traduits par l'existence de marchés professionnels ou internes favorisent l'acquisition de compétences facilitant la mobilité entre deux emplois ; (iii) un cadre géographique " défavorisé " dans lequel vit l'individu apparaît comme un obstacle dans la sécurisation de son parcours.
7
Lin, Pei Ju, and 林佩儒. "Employ volatility technique Index to predict short-time stock rewards." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/68571492740206236539.
Анотація:
碩士輔仁大學
應用統計學研究所
95
This paper employs three implied volatility index(turnover implied volatility, volatility technique Index, and the difference between call volatility and put volatility. In this study, evidence suggests that the relation in stock rewards is asymmetric implied volatility index. However, the CPV is not asymmetric. Finally, the CPV index is the best index to predict the short-time rewards on stock market.
8
jin, yuh-chuan, and 金郁川. "a new symbol time synchronization technique for short-burst TDM transmissions." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/09587688742791529558.
Анотація:
碩士國立中正大學
電機工程學系
85
Two key elements in the design of a demodulator are symbol time synchronization and offset frequency synchronization. PACS( Personal Access Communication Service)is a low-power microcell mobile phone system proposed by Bellcore. This system features short-burst TDM transmission at 1.8 GHz. Bellcore has proposed a method of implementing the PACS demodulator which has been patented. The Bellcore method obtains (1) symbol synchronization, (2) an estimate of the offset frequency,and (3) the quality measure, i.e., an estimate of the channel(path) quality simultaneouslyafter a predetermined set of computation. We develop a new method which obtainsa symbol time synchronization and a frequency offset estimation through separatecalculations, whith symbol time estimation preceeding frequency offset synchronization.However the total of the two calculation does not exceed the one data burst limit. Furthermore, the amount of computation in this new method is comparable to that Bellcore method. This thesis addresses the problem of symbol time synchronization for a PACSmodem. A prefilter-square-DFT combination was able to determine the proper sampingpoint within 30 symbols. This, in conjunction with the 30 symbol periods required for the frequency offset estimation algorithm, is able to complete the time and freuency synchronization within one burst of 64 symbols, as required by the PACS specifications. Analysis, computer simulation results and hardware architectureare presented.
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Chan, Hsin, and 詹訢. "Investigation of Spherical Phased-Array Ultrasound Transducer Using Pseudoinverse Technique for Brain Short-Time Hyperthermia." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5yck33.
Анотація:
碩士國立臺灣大學
醫學工程學研究所
107
Background: Brain metastasis tumors are one of the most significant issues in tumor therapy. Brain metastasis tumors are more frequent (>50%) than any other primary brain tumors and the appearance is about 25% of patients dying of cancer. In general, methods of dealing with these tumors include operation, chemotherapy and radiotherapy, but to some certain degree they are restricted to brain tumor’s conditions. According to previous research, brain metastasis tumors tend to remodeling with surrounding blood vessels and form blood-tumor barrier (BTB). Hyperthermia is found to locally enhance the permeability of BTB formed by brain metastasis tumor, which could benefit antitumor nanodrugs delivery. Researches show that focused ultrasound hyperthermia can enhance liposomal doxorubicin delivery and antitumor efficacy for brain metastasis of breast cancers to improve the mouse survival. Purpose: Based on the array ultrasound transducer designed previously, in this study, we developed phase correction method to deal with skull aberration and to make the device actually applicable in clinic. Furthermore, we used new transducer parameters with smaller PZT element’s surface area and larger number of PZT elements to enlarge hyperthermia heating region by multi-foci pseudoinverse technique. When the tumors are not at the center of head, we must assure the multi-foci method still be able to create enough energy to complete the hyperthermia for clinical use. Materials and Methods: In this study, we reconstructed the skull model by head CT images, calculating the pressure field in the brain for 1 MHz ultrasound by multi-layer second source wave model and Rayleigh Integral. According to bio-heat transfer equation, we simulated the temperature field and thermal dose distribution in the brain to evaluate the effect of hyperthermia. The skull aberration correction and multi-foci techniques are introduced to these simulations. Results: The skull aberration correction technique can improve the focusing, producing more precise and accurate focal spots with new transducer parameters. In multi-foci technique, mode 1 (for multi-foci at (2,0,0)、(-2,0,0)) and mode 2 (for multi-foci at (0,2,0)、(0,-2,0)) can create an effective large hyperthermia region. In the case of switching mode 1 and mode 2 (switching rate at 5 Hz) with intensity limited by 150 W cm-2 for 180 seconds, it can create a region of 7 x 6 x 11 mm3 higher than 41 ℃ and the maximum of temperature lower than 45 ℃, thermal dose beneath the brain tolerance limit. For the cases of tumors not located at the center of head, the multi-foci technique can still produce effective heating region to carry out the hyperthermia. The results of experiments show that the techniques in this study can actually form large heating regions under the skull phantom, demonstrating its practicality for clinical use. Conclusion: The transducer with smaller PZT element’s surface area and larger number of PZT elements can not only form accurate focal zone but create large enough and effective heating regions with phase correction and multi-foci techniques. The results show its feasibility and practicality for clinical brain metastasis tumor hyperthermia.
10
Risius, Steffen. "Development of a time-resolved quantitative surface-temperature measurement technique and its application in short-duration wind tunnel testing." Thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E44D-A.
Книги з теми "Short time crosscorrelation technique":
1
DeNunzio, David. The best short game instruction book ever!: Guaranteed to save you strokes and get up and down every time. New York: Time Inc. Home Entertainment, 2009.
2
Butler, John M. Improved analysis of DNA short tandem repeats with time-of-flight mass spectrometry. Washington, D.C: U.S. Dept. of Justice, Office of Justice Programs, National Institute of Justice, 2001.
3
Butler, John M. Improved analysis of DNA short tandem repeats with time-of-flight mass spectrometry: Science and technology research report. Washington, DC: U.S. Dept. of Justice, Office of Justice Programs, National Institute of Justice, 2001.
4
Morawetz, Klaus. Transient Time Period. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198797241.003.0019.
Анотація:
The formation of correlations at short- time scales is considered. A universal response function is found which allows describing the formation of collective modes in plasmas created by femto-second lasers as well as the formation of occupations in cold atomic optical lattices. Quantum quench and sudden switching of interactions are possible to describe by such Levinson-type kinetic equations on the transient time regime. On larger time scales it is shown that non-Markovian–Levnson equations double count correlations and the extended quasiparticle picture to distinguish between the reduced density matrix and quasiparticle distribution solve this shortcoming. The problem of initial correlations and how they can be incorporated into the Green’s function technique to result into modified kinetic equations is solved and a systematic expansion is suggested.
5
Stoner, Marie. Hypnosis and Biofeedback as Prototypes of Mind–Body Medicine. Edited by Anthony J. Bazzan and Daniel A. Monti. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190690557.003.0011.
Анотація:
Hypnotizability is a strong moderator for treatment outcome in patients with psychiatric disorders. Hypnosis is able to reduce distress and pain in short procedures and has been particularly useful in cancer procedures. Gut-directed hypnotherapy for irritable bowel syndrome has shown substantial results for structured short-term scripted treatment. Biofeedback for hypertension is successful when clinical practice guidelines identifying patient characteristics are followed. Heart rate variability biofeedback shows promise as a technique to directly target self-regulatory mechanisms. Innovative use of real-time functional magnetic resonance imaging neurofeedback is showing promise for altering neural patterns underlying diverse disorders such as clinical depression and chronic pain. Obsessive-compulsive disorder and eating disorders patients may be selectively responsive to hypnotic suggestion. This chapter reviews the basis of hypnosis and related approaches to the management of patients with psychiatric conditions.
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Kulkarni, Kunal, James Harrison, Mohamed Baguneid, and Bernard Prendergast, eds. Trauma and orthopaedics. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198729426.003.0031.
Анотація:
Recent advances in biomechanics and biomaterials are resulting in new and potentially improved implants and procedures in trauma medicine, often with more reliance on high-tech solutions. However, some new advances have resulted in disastrous outcomes. As it takes time for these complications to surface, many patients may be subject to the new technology and resulting consequences. Studying the clinical evidence around these technologies is therefore essential, and use of appropriate surrogate measures to assess the short-term in vivo performance of an implant is important to help predict long-term clinical outcome. Radiostereometric analysis and kinematic assessment are two such tools widely used in translational research and post-market surveillance in the field of joint replacement. It is only with high-quality research and awareness that true advances can be demonstrated and failures averted at the earliest stage. The principles of orthopaedics must remain to alleviate pain, correct deformity, and restore function, whatever technique is used.
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Hobson, R. Peter. Brief Psychoanalytic Therapy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med:psych/9780198725008.001.0001.
Анотація:
This book outlines the principles and practice of Brief Psychoanalytic Therapy. An introductory chapter distills those aspects of psychoanalysis that provide a basis for the approach. Special attention is given to how a therapist may promote a patient’s development by registering and containing emotional states that the patient is unable to manage alone. This is followed by an overview of themes and variations in six forms of brief psychodynamic therapy. The remainder of the book is concerned less with theory than with clinical practice. Treatment and Adherence Manuals detail the specifics of therapist orientation and technique, and a formal research study comparing the approach with Interpersonal Therapy is reported. Case histories of individual treatments unfolding over time are complemented by detailed examination of short sequences of patient–therapist dialogue from transcribed sessions. What emerges is a picture of a psychoanalytic treatment that, while brief, is disciplined and coherent in its concentrated focus on analyzing the transference and countertransference in the therapeutic relationship.
Частини книг з теми "Short time crosscorrelation technique":
1
Coren, Alex. "Differences in Therapeutic Technique between Open-Ended and Time-Limited Therapies." In Short-Term Psychotherapy, 137–70. London: Macmillan Education UK, 2010. http://dx.doi.org/10.1007/978-1-137-11974-2_6.
2
Chung, Sung. "Cluster Transfer Matrix Method: A Novel Many-Body Technique in Nanoelectronics." In Nonequilibrium Physics at Short Time Scales, 23–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08990-3_2.
3
García, Salvador González, Amelia Rubio Bretones, Rafael Godoy Rubio, Mario Fernández Pantoja, and Rafael Gómez Lopez. "A Hybrid Time-Domain Technique that Combines ADI-FDTD and MoMTD to Solve Complex Electromagnetic Problems." In Ultra-Wideband, Short-Pulse Electromagnetics 7, 142–49. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-37731-5_17.
4
Evesque, P. "Degenerate Four-Wave Mixing Technique for Studying Very Fast Radiationless Processes in Very Short Time Scale." In Advances in Nonradiative Processes in Solids, 497–527. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-4446-0_18.
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Ish-Shalom, Oren, Shachar Itzhaky, Noam Rinetzky, and Sharon Shoham. "Run-time Complexity Bounds Using Squeezers." In Programming Languages and Systems, 320–47. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72019-3_12.
Анотація:
AbstractDetermining upper bounds on the time complexity of a program is a fundamental problem with a variety of applications, such as performance debugging, resource certification, and compile-time optimizations. Automated techniques for cost analysis excel at bounding the resource complexity of programs that use integer values and linear arithmetic. Unfortunately, they fall short when execution traces become more involved, esp. when data dependencies may affect the termination conditions of loops. In such cases, state-of-the-art analyzers have shown to produce loose bounds, or even no bound at all.We propose a novel technique that generalizes the common notion of recurrence relations based on ranking functions. Existing methods usually unfold one loop iteration, and examine the resulting relations between variables. These relations assist in establishing a recurrence that bounds the number of loop iterations. We propose a different approach, where we derive recurrences by comparing whole traces with whole traces of a lower rank, avoiding the need to analyze the complexity of intermediate states. We offer a set of global properties, defined with respect to whole traces, that facilitate such a comparison, and show that these properties can be checked efficiently using a handful of local conditions. To this end, we adapt state squeezers, an induction mechanism previously used for verifying safety properties. We demonstrate that this technique encompasses the reasoning power of bounded unfolding, and more. We present some seemingly innocuous, yet intricate, examples where previous tools based on cost relations and control flow analysis fail to solve, and that our squeezer-powered approach succeeds.
6
Schöffler, M. S., L. Ph H. Schmidt, S. Eckart, R. Dörner, A. Czasch, O. Jagutzki, T. Jahnke, et al. "Ultra-fast Dynamics in Quantum Systems Revealed by Particle Motion as Clock." In Molecular Beams in Physics and Chemistry, 353–73. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63963-1_17.
Анотація:
AbstractTo explore ultra-fast dynamics in quantum systems one needs detection schemes which allow time measurements in the attosecond regime. During the recent decades, the pump & probe two-pulse laser technique has provided milestone results on ultra-fast dynamics with femto- and attosecond time resolution. Today this technique is applied in many laboratories around the globe, since complete pump & probe systems are commercially available. It is, however, less known or even forgotten that ultra-fast dynamics has been investigated several decades earlier even with zeptosecond resolution in ion-atom collision processes. A few of such historic experiments, are presented here, where the particle motion (due to its very fast velocity) was used as chronometer to determine ultra-short time delays in quantum reaction processes. Finally, an outlook is given when in near future relativistic heavy ion beams are available which allow a novel kind of “pump & probe” experiments on molecular systems with a few zeptosecond resolution. However, such experiments are only feasible if the complete many-particle fragmentation process can be imaged with high momentum resolution by state-of-the-art multi-particle coincidence technique.
7
Har-Shai, Yaron, and Lior Har-Shai. "Minimally Invasive Technologies for the Treatment of Hypertrophic Scars and Keloids: Intralesional Cryosurgery." In Textbook on Scar Management, 235–41. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_28.
Анотація:
AbstractA novel intralesional cryosurgical needle is inserted into the hypertrophic scars and keloid (HSK). It is connected to a canister of liquid nitrogen, which causes the cryoprobe to freeze, thereby freezing the HSK from inside out.Following the cryo-treatment, the histomorphometric analysis demonstrated rejuvenation of the treated scar. The frozen tissue was devoid of proliferating cells and of mast cells whereas the number of blood vessels remained unaltered.The surface thermal history showed slow cooling and thawing rates as well as less pronounced end temperature, which is “friendly” to the melanocytes, thus only minimal hypopigmentation was evident. A significant long hold time was documented. This allows time for solute effects, ice crystal formation, and recrystallization, which enhances and increases the rate of cell death. This long hold time is unique for the intralesional cryosurgery technology and might explain the superior clinical results.More than 50% of scar volume reduction was achieved following a single cryotherapy. For ear HSK, 70% of volume reduction was achieved, and for the upper back and shoulders 60%. Significant alleviation of objective and subjective clinical symptoms was documented. During the follow-up period there was no worsening or infection of the HSK and only minimal hypopigmentation.A pain control protocol was applied, which significantly reduced pain severity during and after the cryosurgery treatment to tolerable levels (VAS ≤ 3).The intralesional cryosurgery treatment is an evidence-based, effective, and safe technology, simple to operate, can be applied as an office procedure, is cost-effective, and takes a short learning curve. The technique achieves remarkable clinical results usually by a single treatment.
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Iyiola-Tunji, Adetunji Oroye, James Ijampy Adamu, Paul Apagu John, and Idris Muniru. "Dual Pathway Model of Responses Between Climate Change and Livestock Production." In African Handbook of Climate Change Adaptation, 523–62. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_230.
Анотація:
AbstractThis chapter was aimed at evaluating the responses of livestock to fluctuations in climate and the debilitating effect of livestock production on the environment. Survey of livestock stakeholders (farmers, researchers, marketers, and traders) was carried out in Sahel, Sudan, Northern Guinea Savannah, Southern Guinea Savannah, and Derived Savannah zones of Nigeria. In total, 362 respondents were interviewed between April and June 2020. The distribution of the respondents was 22 in Sahel, 57 in Sudan, 61 in Northern Guinea Savannah, 80 in Southern Guinea Savannah, and 106 in Derived Savannah. The respondents were purposively interviewed based on their engagement in livestock production, research or trading activities. Thirty-eight years’ climate data from 1982 to 2019 were obtained from Nigerian Metrological Agency, Abuja. Ilela, Kiyawa, and Sabon Gari were chosen to represent Sahel, Sudan, and Northern Guinea Savannah zone of Nigeria, respectively. The data contained precipitation, relative humidity, and minimum and maximum temperature. The temperature humidity index (THI) was calculated using the formula: THI = 0.8*T + RH*(T-14.4) + 46.4, where T = ambient or dry-bulb temperature in °C and RH=relative humidity expressed as a proportion. Three Machine Learning model were built to predict the monthly minimum temperature, maximum temperature, and relative humidity respectively based on information from the previous 11 months. The methodology adopted is to treat each prediction task as a supervised learning problem. This involves transforming the time series data into a feature-target dataset using autoregressive (AR) technique. The major component of the activities of livestock that was known to cause injury to the environment as depicted in this chapter was the production of greenhouse gases. From the respondents in this chapter, some adaptive measures were stated as having controlling and mitigating effect at reducing the effect of activities of livestock on the climate and the environment. The environment and climate on the other side of the dual pathway is also known to induce stress on livestock. The concept of crop-livestock integration system is advocated in this chapter as beneficial to livestock and environment in the short and long run. Based on the predictive model developed for temperature and relative humidity in a sample location (Ilela) using Machine Learning in this chapter, there is need for development of a web or standalone application that will be useable by Nigerian farmers, meteorological agencies, and extension organizations as climate fluctuation early warning system. Development of this predictive model needs to be expanded and made functional.
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Ozkok, Beyza Ahlatcioglu, and Neslihan Fidan Kececi. "A Short Review on Supplier Selection Problem Methods Under Uncertainty." In Advances in Library and Information Science, 157–68. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-9531-1.ch012.
Анотація:
In today's globally competitive environment, firms give great attention for selecting right suppliers in the context of their supply chain management. Choosing right suppliers helps to reduce the purchasing costs and improve the quality of final products and services. Supplier selection problem is one of the multi-criteria decision-making problems which includes both qualitative and quantitative factors like unit cost, delivery on time, service quality, etc. Handling imprecise information is one of the most important problems for modeling supplier selection problem. In order to overcome this problem, many scientific researchers have been published during the years, and many mathematical theories have been used to handle uncertainties in supplier selection problem such as fuzzy set theory, stochastic theory, rough set theory, and some hybrid techniques, etc. This chapter aims to provide short review on SSP methods under uncertainty. The sources used for the study consist of scientific refereed journals and books and are selected with respect to their citation rate and the ability of presenting the contained technique well. Also, the publications in languages other than English and non-refereed professional ones are not included.
10
Bhatia, Dinesh, and Animesh Mishra. "A Novel Artificial Intelligence Technique for Analysis of Real-Time Electro-Cardiogram Signal for the Prediction of Early Cardiac Ailment Onset." In Handbook of Research on Advancements of Artificial Intelligence in Healthcare Engineering, 42–66. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2120-5.ch003.
Анотація:
The role of ECG analysis in the diagnosis of cardio-vascular ailments has been significant in recent times. Although effective, the present computational algorithms lack accuracy, and no technique till date is capable of predicting the onset of a CVD condition with precision. In this chapter, the authors attempt to formulate a novel mapping technique based on feature extraction using fractional Fourier transform (FrFT) and map generation using self-organizing maps (SOM). FrFT feature extraction from the ECG data has been performed in a manner reminiscent of short time Fourier transform (STFT). Results show capability to generate maps from the isolated ECG wavetrains with better prediction capability to ascertain the onset of CVDs, which is not possible using conventional algorithms. Promising results provide the ability to visualize the data in a time evolution manner with the help of maps and histograms to predict onset of different CVD conditions and the ability to generate the required output with unsupervised training helping in greater generalization than previous reported techniques.
Тези доповідей конференцій з теми "Short time crosscorrelation technique":
1
Lejba, P., J. Nawrocki, D. Lemanski, P. Nogas, and P. Dunst. "Precise Point Positioning technique for short and long baselines time transfer." In 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC). IEEE, 2013. http://dx.doi.org/10.1109/eftf-ifc.2013.6702204.
2
Setiawan, Iwan, Cees Keyer, Marco Azpurua, Ferran Silva, and Frank Leferink. "Time-domain measurement technique to analyze cyclic short-time interference in power supply networks." In 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). IEEE, 2016. http://dx.doi.org/10.1109/apemc.2016.7523034.
3
Vanajakshi, Lelitha, and Laurence R. Rilett. "Support Vector Machine Technique for the Short Term Prediction of Travel Time." In 2007 IEEE Intelligent Vehicles Symposium. IEEE, 2007. http://dx.doi.org/10.1109/ivs.2007.4290181.
4
Channon, N. D., and A. G. Hallam. "A bi-directional optical time domain reflectometry technique optimised for short LAN fibers." In Technical Digest - Symposium on Optical Fiber Measurements. IEEE, 2004. http://dx.doi.org/10.1109/sofm.2004.183478.
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Long, Teoh King, and Ko Yin Fern. "Time Domain Reflectometry Technique for Failure Analysis." In ISTFA 2004. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.istfa2004p0616.
Анотація:
Abstract In time domain reflectometry (TDR), the main emphasis lies on the reflected waveform. Poor probing contact is one of the common problems in getting an accurate waveform. TDR probe normalization is essential before measuring any TDR waveforms. The advantages of normalization include removal of test setup errors in the original test pulse and the establishment of a measurement reference plane. This article presents two case histories. The first case is about a Plastic Ball Grid Array package consisting of 352 solder balls where the open failure mode was encountered at various terminals after reliability assessment. In the second, a three-digit display LED suspected of an electrical short failure was analyzed using TDR as a fault isolation tool. TDR has been successfully used to perform non-destructive fault isolation in assisting the routine failure analysis of open and short failure. It is shown to be accurate and reduces the time needed to identify fault locations.
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Wells, Lionelle F., Alina Deutsch, Zhen Zhou, and Kathleen L. Melde. "The effects of time windowing on the accuracy of the short-pulse propagation technique." In 2009 IEEE 18th Conference on Electrical Performance of Electronic Packaging and Systems (EPEPS). IEEE, 2009. http://dx.doi.org/10.1109/epeps.2009.5338479.
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Su, Benyue, Qingfeng Tang, Jing Jiang, Min Sheng, Ali Abdullah Yahya, and Guangjun Wang. "A novel method for short-time human activity recognition based on improved template matching technique." In VRCAI '16: The 15th International Conference on Virtual-Reality Continuum and its Applications in Industry. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/3013971.3014004.
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Masoudi, Husain M. "Modeling Ultra Short Optical Pulse Propagation In Integrated Optical Waveguides Using A New Time Domain Technique." In 2007 International Conference on Numerical Simulation of Optoelectronic Devices. IEEE, 2007. http://dx.doi.org/10.1109/nusod.2007.4349010.
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En-Nouaary, Abdeslam, and Abdelwahab Hamou-Lhadj. "A Boundary Checking Technique for Testing Real-Time Systems Modeled as Timed Input Output Automata (Short Paper)." In 2008 Eighth International Conference on Quality Software (QSIC). IEEE, 2008. http://dx.doi.org/10.1109/qsic.2008.53.
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Sumi, Chikayoshi, Mitsuhiro Kubota, Gou Wakabayashi, and Minoru Tanabe. "Usefulness of ultrasonic strain measurement-based mechanical properties imaging technique: toward realization of short time diagnosis/treatment." In Biomedical Optics 2003, edited by Thomas P. Ryan. SPIE, 2003. http://dx.doi.org/10.1117/12.497643.