Relevant bibliographies by topics / Matthew R. Holmes

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Matthew R. Holmes'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Matthew R. Holmes"

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El-Khabeery, M. M., S. M. Saleh, and M. R. Ramadan. "Some observations of surface integrity of deep drilling holes." Wear 142, no. 2 (March 1991): 331–49. http://dx.doi.org/10.1016/0043-1648(91)90173-r.

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Dermenji, L., K. G. Lisunov, Konstantin Nickolaevich Galkin, Dmitrii L. Goroshko, E. A. Chusovitin, Nikolay G. Galkin, and Ernest Arushanov. "Transport Properties of CaSi2 and Ca2Si Thin Films." Solid State Phenomena 312 (November 2020): 3–8. http://dx.doi.org/10.4028/www.scientific.net/ssp.312.3.

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Resistivity, r (T), and Hall coefficient in weak (B < 1 T) magnetic fields, R (T), are investigated in Ca2Si and CaSi2 films at temperatures T between ~ 20 - 300 K. In CaSi2, r (T) is typical of metals increasing with T within the whole temperature range. On the other hand, the resistivity of Ca2Si is pertinent of semiconductors. Namely, it is activated below T ~ 200 K, exhibiting different slopes of ln r vs. T -1 plots at lower and higher T, and a weak increase between T ~ 200 - 300 K. Both materials demonstrate a complex dependence of R (T), including a change of the sign. Transport properties above have been analyzed assuming two groups of charge carriers, electrons and holes, contributing them.
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FU, LIANGJIE, and YUAN CHEN. "GROUND-STATE ENERGY OF THE ELECTRON GAS WITH THE MODIFIED COULOMB POTENTIAL 1/rp." International Journal of Modern Physics B 25, no. 15 (June 20, 2011): 2019–30. http://dx.doi.org/10.1142/s0217979211101223.

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In this paper, due to the effect of positively-charged screening holes, Coulomb potential energy 1/r is modified to be 1/rp, which is assumed to deviate slightly from the former. Using many-body perturbation theory, we obtain a simple analytic representation of the ground-state energy and correlation energy for a uniform electron gas. Our results agree with those obtained by the numerical and semi-analytic methods at low-density limit. Higher ground-state energies at high-density limit are calculated from our model. High order r expansion terms are found at high-density region. A curve of transition density versus p is drawn via the Misawa spin-scaling relation, which is in consistent with Perdew's study at low-density limit.
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DAI, XIAN-QI, FENG-ZHEN HUANG, and JUN-JIE SHI. "LOCALIZED EXCITONS IN SELF-ASSEMBLED InxGa1-xN QUANTUM DOTS." Modern Physics Letters B 19, no. 12 (May 30, 2005): 589–98. http://dx.doi.org/10.1142/s0217984905008591.

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Within the framework of effective-mass approximation, the exciton states localized in cylindrical InGaN quantum dots (QDs) are investigated using a variational approach. The relationship between the exciton states and structural parameters of QDs with radius R and height L are studied in detail. The numerical results show that the exciton binding energy is sensitive to the ratio of R/L for a QD with a given volume. There is a maximum in the binding energy, where the electrons and holes are the most efficiently confined in the QDs with special structural parameters. The binding energy maximum can be obtained at about L = 1.7 nm for different QD volumes. The exciton binding energy and emission wavelength depend sensitively on structural parameters and the In content in the In x Ga 1-x N active layer. Our calculated emission wavelengths are in good agreement with experimental data.
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GAUR, S. K., D. CHATURVEDI, R. K. SINGHAL, B. DALELA, S. DALEL, N. L. SAINI, D. PELLOQUIN, et al. "XANES STUDY OF THE DEPENDENCE OF THE ITINERANT HOLE DENSITY IN THE SUPERCONDUCTING Hg0.5Bi0.5Sr2Ca1-xRxCu2O7-δ (R=NdandPr) SYSTEM." International Journal of Modern Physics B 18, no. 20n21 (August 30, 2004): 2849–62. http://dx.doi.org/10.1142/s0217979204025282.

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X-ray absorption measurements have been made at the Cu L 3 and O K-edge on ( Hg 0.5 Bi 0.5) Sr 2( Ca 1-x Pr x) Cu 2 O 7-δ (x=0.35,0.50) and ( Hg 0.5 Bi 0.5) Sr 2( Ca 0.65 Nd 0.35)- Cu 2 O 7-δ superconducting systems. Our results clearly indicate that hole density decreases with increase in Pr content. The values of T c for Pr and Nd (x=0.35) systems are the same but the itinerant hole density is found to be larger in the latter case. In view of the fact that the density of holes depends more upon diamagnetic fraction than the T c in these superconducting systems, we can conclude that superconducting properties are different for these two cases.
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Whangbo, M. H., and M. A. Subramanian. "Structural origin of holes in the TlO single rock-salt layer superconductor TlSrRCuO5 (R = La, Nd)." Journal of Solid State Chemistry 91, no. 2 (April 1991): 403–6. http://dx.doi.org/10.1016/0022-4596(91)90098-3.

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Narimousa, Siavash. "Penetrative turbulent convection into a rotating two-layer fluid." Journal of Fluid Mechanics 321 (August 25, 1996): 299–313. http://dx.doi.org/10.1017/s0022112096007732.

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Turbulent convection into stratified two-layer fluid systems in the presence of rotation has been investigated in a cylindrical laboratory tank. For a wide range of conditions the vertical stability of the flow depends only on the Richardson number Ri = g′h0/(B0R)2/3 (here, g′ = gδ ρi/ρ0 is the jump in the reduced gravity across the density interface, δ ρi is the jump in density itself, h0 is the depth of the top layer, B0 is the surface buoyancy flux and R is the radius of the source). We have found that for values of Ri greater than a critical value of Ric ≈ 11, the convective flow did not penetrate through the density interface, regardless of the values of the convective Rossby number Ro* = (B0/f3h02)1/2 of the flow (here f is the Coriolis parameter). In this case after the convective layer interacted with the density interface the mixed fluid, of intermediate density, propagated radially along the interface in the form of an intrusion. Later, if Ro* was less than approximately 5, mesoscale vortices with mean diameter D ≈ 8(RoR)2/3 and maximum swirl velocity v ≈ (B0R)1/3 were generated at the edge of this propagating front (here RoR = (B0/f3R2)1/2 is the Rossby number based on R). When Ri was less than 11, the convective flow eventually penetrated through the density interface and into the bottom layer. This occurred through the formation of discrete ‘convective holes’ beneath the source. At large values of Ro*, and at early times, one turbulent plume penetrated into the bottom layer from each hole. Later the initial holes coalesced to create one large lesion beneath the source.
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Vigdergauz, Shmuel. "Cross Relations Between the Planar Elastic Moduli of Perforated Structures." Journal of Applied Mechanics 73, no. 1 (November 1, 2004): 163–66. http://dx.doi.org/10.1115/1.1938202.

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The effective compliance moduli of a plate with a doubly periodic set of traction-free holes are considered. Attention is drawn to the perturbation form in which they are expressed by applying the complex variable methods in two-dimensional elasticity. This permits one to derive specific dimensionless combinations of the effective moduli, which are independent of the solid Poisson ratio. Using them saves computations of the structure moduli by FEM-like methods and helps one to evaluate their practical accuracy. Thus far, the only result of this kind has been observed numerically by Day, Snyder, Garboczi, and Thorpe (J. Mech. Phys. Solids. 40, pp. 1031–1051, 1992) and later proved by Cherkaev, Lurie, and Milton (Proc. R. Soc. London, Ser. A 458, pp. 519–529, 1992).
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Cooke, D. W., H. Rempp, Z. Fisk, J. L. Smith, and M. S. Jahan. "Luminescent properties of x-irradiated rare-earth-doped barium copper oxides." Journal of Materials Research 2, no. 6 (December 1987): 871–75. http://dx.doi.org/10.1557/jmr.1987.0871.

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Thermally stimulated luminescence (TSL) of x-ray-induced defects in R-Ba–Cu–O (R = Gd, Ho, and Eu) has been measured. In the interval 25–400°C, Ho- and Eu-doped samples exhibit similar TSL with peaks at 65, 135, and 185°C. The GdBa2Cu3Ox has, in addition to the three aforementioned peaks, a maximum at 310°C. All TSL peaks are attributed to recombination of F+s – and F−s center electrons with Vs-type holes, requiring typical thermal activation energies 0.5–1.0 eV. Spectral emission data support this conclusion. Irreversible quenching of TSL is found to occur in each sample. It is postulated that adsorbed oxygen molecules interact with radiation-induced F+s and Fs centers to produce O−2 and O2−2 molecular ions, respectively, thereby reducing the surface oxygen vacancy concentration and quenching the luminescence. In addition to activation energies, other TSL parameters are extracted from the data. It is suggested that surface TSL in these oxide superconductors is independent of rare-earth dopant.
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Bacci, Silvia, Eduardo Gagliano, and Franco Nori. "FRUSTRATED SPIN (J-J') SYSTEMS DO NOT MODEL THE MAGNETIC PROPERTIES OF HIGH-TEMPERATURE SUPERCONDUCTORS." International Journal of Modern Physics B 05, no. 01n02 (January 1991): 325–39. http://dx.doi.org/10.1142/s0217979291000201.

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We study the t—J model with one hole and the frustrated Heisenberg J—J′ model in a square lattice. Specifically, we compute and compare for both, the doped and frustrated models, the dynamic spin-spin structure factor S(q, ω), and the B1g Raman scattering spectrum R(ω) at zero temperature. The behavior of these quantities differs between the t—J and the J—J′ models. We observe that both the B1g Raman spectrum as well as the structure factor for the t—J model are in qualitative agreement with experimental measurements while the corresponding results for the J—J′ model are not. These results indicate that the magnetic behavior of doped systems cannot be accurately modeled by a purely spin Hamiltonian. These results are of relevance to the claim that the effect of adding holes (doping) on the magnetic properties of the quantum Heisenberg antiferromagnet can be described by introducing second and sometimes third nearest-neighbor couplings, J′ and J″ respectively, in the original (undoped) Hamiltonian.
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Dissertations / Theses on the topic "Matthew R. Holmes"

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Holmes, Matthew R. "Integration of Micropore and Nanopore Features with Optofluidic Waveguides for Single Particle Sensing." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3037.

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This dissertation outlines the research and development of ground-breaking nanometer sized openings (nanopores) integrated with an on-chip optofluidic platform. This platform represents a significant advancement for single nanoparticle sensing. In this work specifically, the integrated optofluidic platform has been used to electrically and optically filter and detect single nanoparticles using ionic current blockade and fluorescence experiments. The correlation of electrical and optical signal has provided the highest sensitivity single nanoparticle measurements ever taken with integrated optofluidic platforms. The particular optofluidic platform used for this work is an antiresonant reflecting optical waveguide (ARROW). ARROW hollow and solid core waveguides are interference based waveguides that are designed to guide light in low index media such as liquids and gases. Because of this unique guiding property, ARROW hollow cores can be used to sense and analyze low concentrations of single particles. Additionally, because ARROW platforms are based upon standard silicon processing techniques and materials, they are miniature sized (~1 cm2), inexpensive, highly parallelizable, provide a high degree of design flexibility, and can be integrated with many different optical and electrical components and sources. Finally, because of the miniature, integrated nature of the ARROW platform, it has the potential to be incorporated into hand held devices that could provide quick, inexpensive, user-friendly diagnostics. The ARROW platform has been through many revisions in the past several years in an attempt to improve performance and functionality. Specifically, advanced fabrication techniques that have been used to decrease the production time, increase the yield, and improve the optical quality of ARROW platforms are discussed in the first part of this work. These advancements were all developed in order to facilitate the production of high quality integrated nanopores and ARROW platforms. The second part of this work then focuses on the actual integration of micrometer sized openings (micropores) and nanopores in the hollow waveguide section of ARROW platforms for filtering, detecting, and analyzing single nanoparticles. The successes and attempts at achieving these results are the basis of this dissertation of work.
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Schleicher, Dominik R. G. [Verfasser]. "The early universe : probing primordial magnetic fields, dark matter models and the first supermassive black holes / put forward by Dominik R. G. Schleicher." 2009. http://d-nb.info/995782148/34.

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Book chapters on the topic "Matthew R. Holmes"

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Danesi, Marcel. "π‎ (Pi)." In Pythagoras' Legacy, 56–68. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198852247.003.0004.

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Pi is defined formally as the ratio of the circumference (C) of a circle to twice the radius (r). This was known in antiquity even before mathematicians tackled this ratio. As such, it is an amazing discovery, which tells us that no matter the size of a circle, the ratio of the circumference to the diameter (twice the radius) never changes. This might strike us as obvious, but the obvious often holds many hidden treasures. Like the Pythagorean theorem, π‎ established something that people knew practically and mathematicians gave this knowledge an abstract form, so that it could be used and studied further. And it has produced incredible results. This chapter deals with π‎, and its appearances in other part of mathematics and in Nature, reminding us that it is there, and defying us to understand why. The more technologically advanced we become and as our picture of π‎ grows ever more sophisticated, the more its mysteries grow.
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Ting, T. T. C. "Green's Functions for Infinite Space, Halfspace, and Composite Space." In Anisotropic Elasticity. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195074475.003.0011.

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One of the basic solutions for anisotropic elasticity, and for other subject for that matter, is the Green's function. The importance of Green's functions in constructing solutions to boundary value problems has been well recognized. We will study in this chapter Green's functions for infinite spaces, half-spaces, and bimaterials that consist of two half-spaces of dissimilar materials bonded together. Also studied are a composite space that consists of wedges of dissimilar materials and an angularly inhomogeneous space. Green's functions for the infinite space with the presence of a crack, an elliptic hole, or an elliptic inclusion will be studied in separate chapters. We will be concerned mainly with Green's functions due to a line of concentrated forces and a line dislocation that have the r-1 stress singularity where r is the radial distance from the line of forces or the line dislocation. Green's functions due to a concentrated couple, a double force, a center of dilatation, etc., that provide the r-2 stress singularities will be discussed in Section 8.12. We will see that most solutions can be expressed in a real form with the identities presented in Chapters 6 and 7. The Green's function for two-dimensional deformations of an infinite anisotropic elastic material subject to a line dislocation has been obtained by Eshelby et al. (1953), Stroh (1958), Willis (1970), Malen and Lothe (1970), and Malen (1971). Further developments of the Green's function to include a line force was given by Barnett and Lothe (1975a). The solution was in a complex form. A real form solution using an integral representation was derived by Barnett and Swanger (1971) and Asaro et al. (1973) (see also Mura, 1975). Most of the real form solutions obtained by these authors were for the displacement gradient, and hence for the strain. The stress was then obtained indirectly through the stress-strain relations. Chadwick and Smith (1977) did present real form solutions for the displacement as well as the stress directly. The solutions required the inverse of the 6x6 matrix (x1I + x2N) which can be achieved by employing (7.9-17).
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Conference papers on the topic "Matthew R. Holmes"

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Wanajo, Shinya, Hans-Thomas Janka, Isao Tanihara, Hooi Jin Ong, Atsushi Tamii, Tadafumi Kishimoto, Toshitaka Kajino, Shigeru Kubono, and Tatsushi Shima. "The r-Process in Black Hole Winds." In THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG—2010. AIP, 2010. http://dx.doi.org/10.1063/1.3485122.

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Boyd, R. N., M. A. Famiano, B. S. Meyer, Y. Motizuki, T. Kajino, and I. U. Roederer. "The r-process in metal poor stars and black hole formation." In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2011. AIP, 2012. http://dx.doi.org/10.1063/1.4763381.

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