Готові списки джерел за темами / One-dimensional tripled system

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Добірка наукової літератури з теми "One-dimensional tripled system"

Автор: Grafiati
Опубліковано: 4 червня 2021
Оновлено: 20 лютого 2023

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Статті в журналах з теми "One-dimensional tripled system"

1

Aligia, A. A., and Liliana Arrachea. "Triplet superconductivity in quasi-one-dimensional systems." Physical Review B 60, no. 22 (December 1, 1999): 15332–38. http://dx.doi.org/10.1103/physrevb.60.15332.

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2

Ding, Hanqin, and Jun Zhang. "Superconductivity in a one-dimensional correlated quantum system." Modern Physics Letters B 30, no. 19 (July 20, 2016): 1650231. http://dx.doi.org/10.1142/s0217984916502316.

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Анотація:
We construct a one-dimensional (1D) theoretical model to clarify the occurrence of superconductivity. The weak-coupling (WC) theory allows a determination of the phase diagram. The constrained hopping induces additional two-body and three-body interactions. At half-filling, the three-body interaction is responsible for the triplet superconducting (TS) correlation. Away from half-filling, the two-body interaction works, favoring the singlet superconducting (SS) correlation. The results are expected to provide an insignificant insight into the superconductivity mechanism.
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3

Vaccarella, C. D., R. D. Duncan, and C. A. R. Sá de Melo. "Triplet superconductors: Josephson effect in quasi-one-dimensional systems." Physica C: Superconductivity 391, no. 1 (August 2003): 89–97. http://dx.doi.org/10.1016/s0921-4534(03)00872-4.

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4

Feldman, Jacob. "Regularity Vs Genericity in the Perception of Collinearity." Perception 25, no. 3 (March 1996): 335–42. http://dx.doi.org/10.1068/p250335.

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Анотація:
The perception of collinearity is investigated, with the focus on the minimal case of three dots. As suggested previously, from the standpoint of probabilistic inference, the observer must classify each dot triplet as having arisen either from a one-dimensional curvilinear process or from a two-dimensional patch. The normative distributions of triplets arising from these two classes are unavailable to the observer, and are in fact somewhat counterintuitive. Hence in order to classify triplets, the observer invents distributions for each of the two opposed types, ‘regular’ (collinear) triplets and ‘generic’ (ie not regular) triplets. The collinear prototype is centered at 0° (ie perfectly straight), whereas the generic prototype, contrary to the normative statistics, is centered at 120° away from straight—apparently because this is the point most distant in triplet space from straight and thus creates the maximum possible contrast between the two prototypes. By default, these two processes are assumed to be equiprobable in the environment. An experiment designed to investigate how subjects' judgments are affected by conspicuous environmental deviations from this assumption is reported. The results suggest that observers react by elevating or depressing the expected probability of the generic prototype relative to the regular one, leaving the prototype structure otherwise intact.
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5

Suginishi, Yuuichi, and Hiroshi Shimahara. "Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems." Journal of the Physical Society of Japan 73, no. 11 (November 2004): 3121–28. http://dx.doi.org/10.1143/jpsj.73.3121.

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6

Lee, I. J. "Coexistence of spin triplet superconductivity and antiferromagnetism in a quasi-one-dimensional system (TMTSF)2PF6." Journal of Magnetism and Magnetic Materials 310, no. 2 (March 2007): 657–59. http://dx.doi.org/10.1016/j.jmmm.2006.10.187.

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7

Dohnal, Michal, Tomáš Vogel, Martin Šanda, and Vladimíra Jelínková. "Uncertainty Analysis of a Dual-Continuum Model Used to Simulate Subsurface Hillslope Runoff Involving Oxygen-18 as Natural Tracer." Journal of Hydrology and Hydromechanics 60, no. 3 (September 1, 2012): 194–205. http://dx.doi.org/10.2478/v10098-012-0017-0.

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Анотація:
Uncertainty Analysis of a Dual-Continuum Model Used to Simulate Subsurface Hillslope Runoff Involving Oxygen-18 as Natural TracerA one-dimensional dual-continuum model (also known as dual-permeability model) was used to simulate the lateral component of subsurface runoff and variations in the natural18O content in hillslope discharge. Model predictions were analyzed using the GLUE generalized likelihood uncertainty estimation procedure. Model sensitivity was evaluated by varying two separate triplets of parameters. The first triplet consisted of key parameters determining the preferential flow regime, i.e., the volumetric proportion of the preferential flow domain, a first-order transfer coefficient characterizing soil water exchange between the two flow domains of the dual-continuum system, and the saturated hydraulic conductivity of the preferential flow domain. The second triplet involved parameters controlling exclusively the soil hydraulic properties of the preferential flow domain, i.e., its retention curve and hydraulic conductivity function. Results of the analysis suggest high sensitivity to all parameters of the first triplet, and large differences in sensitivity to the parameters of the second triplet. The sensitivity analysis also confirmed a significant improvement in the identifiability of preferential flow parameters when18O content was added to the objective function.
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8

SHARMA, MEENAKSHI, KAMLESH KUMARI, and ISHWAR SINGH. "QUANTUM MONTE CARLO SIMULATION STUDY OF ONE-DIMENSIONAL PERIODIC ANDERSON MODEL." International Journal of Modern Physics B 13, no. 32 (December 30, 1999): 3927–42. http://dx.doi.org/10.1142/s0217979299004094.

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Анотація:
Many rare earth and actinide intermetallics, known as Heavy Fermion Systems, have recently been successfully described by the Periodic Anderson Model. We investigate, in this work, various electronic and magnetic properties of the one-dimensional Periodic Anderson model using path integral formulation along with the quantum Monte Carlo simulation technique. We have studied the singlet and triplet pairing correlation functions, nearest neighbor charge-density correlations, spin density correlations, local squared magnetic moment and probability of double occupancy of f-electrons, as a function of intra-atomic Coulomb interaction for various values of hybridization parameter and the temperatures.
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9

Kaneyuki, Soji, and Hiroshi Asano. "Graded Lie algebras and generalized Jordan triple systems." Nagoya Mathematical Journal 112 (December 1988): 81–115. http://dx.doi.org/10.1017/s002776300000115x.

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Анотація:
One frequently encounters (real) semisimple graded Lie algebras in various branches of differential geometry (e.g. [16], [9], [14], [18]). It is therefore desirable to study semisimple graded Lie algebras, including those which have been studied individually, in a unified way. One of our concerns is to classify (finite-dimensional) semisimple graded Lie algebras in a way that enables us to construct them.
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10

CHELTSOV, V. F. "EXACT THEORY OF SPONTANEOUS EMISSION OF TWO LEVEL ATOM IN ONE-DIMENSIONAL CAVITY." Modern Physics Letters B 09, no. 14 (June 20, 1995): 859–70. http://dx.doi.org/10.1142/s0217984995000814.

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Анотація:
The exact theory of the spontaneous emission of a motionless two level atom in a one-dimensional cavity at zero temperature is presented. In the damped cavity case, using the theory of quasistationary systems and a novel algorithm in operating casual ζ-functions, the theory predicts a hidden-triplet form of emission spectrum which turns abruptly to a singlet when the cavity passive linewidth Γ c /2 becoming equal to twice the coupling constant.
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Дисертації з теми "One-dimensional tripled system"

1

Chow, Tanya L. M., of Western Sydney Macarthur University, and Faculty of Business and Technology. "Systems of partial differential equations and group methods." THESIS_FBT_XXX_Chow_T.xml, 1996. http://handle.uws.edu.au:8081/1959.7/43.

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Анотація:
This thesis is concerned with the derivation of similarity solutions for one-dimensional coupled systems of reaction - diffusion equations, a semi-linear system and a one-dimensional tripled system. The first area of research in this thesis involves a coupled system of diffusion equations for the existence of two distinct families of diffusion paths. Constructing one-parameter transformation groups preserving the invariance of this system of equations enables similarity solutions for this coupled system to be derived via the classical and non-classical procedures. This system of equation is the uncoupled in the hope of recovering further similarity solutions for the system. Once again, one-parameter groups leaving the uncoupled system invariant are obtained, enabling similarity solutions for the system to be elicited. A one-dimensional pattern formation in a model of burning forms the next component of this thesis. The primary focus of this area is the determination of similarity solutions for this reaction - diffusion system by means of one-parameter transformation group methods. Consequently, similarity solutions which are a generalisation of the solutions of the one-dimensional steady equations derived by Forbes are deduced. Attention in this thesis is then directed toward a semi-linear coupled system representing a predator - prey relationship. Two approaches to solving this system are made using the classical procedure, leading to one-parameter transformation groups which are instrumental in elicting the general similarity solution for this system. A triple system of equations representing a one-dimensional case of diffusion in the presence of three diffusion paths constitutes the next theme of this thesis. In association with the classical and non-classical procedures, the derivation of one-parameter transformation groups leaving this system invariant enables similarity solutions for this system to be deduced. The final strand of this thesis involves a one- dimensional case of the general linear system of coupled diffusion equations with cross-effects for which one-parameter transformation group methods are once more employed. The one-parameter groups constructed for this system prove instrumental in enabling the attainment of similarity solutions for this system to be accomplished
Faculty of Business and Technology
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2

Chow, Tanya L. M. "Systems of partial differential equations and group methods." Thesis, [Campbelltown, N.S.W. : The Author], 1996. http://handle.uws.edu.au:8081/1959.7/43.

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Анотація:
This thesis is concerned with the derivation of similarity solutions for one-dimensional coupled systems of reaction - diffusion equations, a semi-linear system and a one-dimensional tripled system. The first area of research in this thesis involves a coupled system of diffusion equations for the existence of two distinct families of diffusion paths. Constructing one-parameter transformation groups preserving the invariance of this system of equations enables similarity solutions for this coupled system to be derived via the classical and non-classical procedures. This system of equation is the uncoupled in the hope of recovering further similarity solutions for the system. Once again, one-parameter groups leaving the uncoupled system invariant are obtained, enabling similarity solutions for the system to be elicited. A one-dimensional pattern formation in a model of burning forms the next component of this thesis. The primary focus of this area is the determination of similarity solutions for this reaction - diffusion system by means of one-parameter transformation group methods. Consequently, similarity solutions which are a generalisation of the solutions of the one-dimensional steady equations derived by Forbes are deduced. Attention in this thesis is then directed toward a semi-linear coupled system representing a predator - prey relationship. Two approaches to solving this system are made using the classical procedure, leading to one-parameter transformation groups which are instrumental in elicting the general similarity solution for this system. A triple system of equations representing a one-dimensional case of diffusion in the presence of three diffusion paths constitutes the next theme of this thesis. In association with the classical and non-classical procedures, the derivation of one-parameter transformation groups leaving this system invariant enables similarity solutions for this system to be deduced. The final strand of this thesis involves a one- dimensional case of the general linear system of coupled diffusion equations with cross-effects for which one-parameter transformation group methods are once more employed. The one-parameter groups constructed for this system prove instrumental in enabling the attainment of similarity solutions for this system to be accomplished
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Частини книг з теми "One-dimensional tripled system"

1

MELO, C. A. R. SÁ DE. "SINGLET VERSUS TRIPLET SUPERCONDUCTIVITY IN QUASI-ONE-DIMENSIONAL SYSTEMS: MAGNETIC FIELD EFFECTS." In Series on Directions in Condensed Matter Physics, 296–324. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789812816559_0015.

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2

Bokstein, Boris S., Mikhail I. Mendelev, and David J. Srolovitz. "Phase equilibria I." In Thermodynamics and Kinetics in Materials Science. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780198528036.003.0004.

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Анотація:
This chapter addresses the general features of phase equilibria and applies them to single component systems. Before extending our study of phase equilibria to the interesting case of multiphase, multicomponent systems, we examine the special case of single phase, two-component systems (Chapter 3). Phase equilibria in multiphase, multicomponent systems is deferred until Chapter 4. A single substance may exist in different states. For example, H2O can exist as water vapor, liquid water, or any one of several solid phases (ices). Different states can co-exist indefinitely under certain sets of conditions. Under such conditions, the co-existence of these states suggests that they are in equilibrium with respect to one another, that is, phase equilibrium has been established. It is convenient to graphically represent phase equilibria in the form of phase diagrams. An example of such a diagram for a one-component system (with no solid state allotropes) is shown in Fig. 2.1. The AO, OB, and OC lines represent conditions for which two phases are in equilibrium. Since each set of two-phase equilibrium is represented by a one-dimensional surface (i.e. a line), we see that we can vary one parameter (either T or p) without entering a one-phase region of the diagram. For example, if we set the temperature to T1 we can find a saturated vapour pressure p1 such that the liquid and gas co-exist. Three phases simultaneously co-exist at point O, which is called the triple point. Since the three-phase co-existence surface is zero dimensional (i.e. a point), three-phase equilibrium only exists at a specific temperature and pressure, that is, no conditions can be varied. On the other hand, every single-phase region of the diagram is a two-dimensional area and, hence, we can simultaneously, vary two parameters (i.e. both the temperature and pressure) and still remain in the same single-phase region of the diagram. Equations describing the lines of phase equilibria will be derived in Section 2.2, below. Unlike the lines describing the solid–liquid or solid–vapor co-existence, the liquid–vapor co-existence line terminates in a single-phase region of the diagram.
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Тези доповідей конференцій з теми "One-dimensional tripled system"

1

Ding, Lin, Mei Hui, Fei Yu, Jiayuan Deng, Li-quan Dong, Xiao-hua Liu, and Yue-jin Zhao. "Advanced one-dimensional triple wavelet analysis in row for infrared images from un-cooled infrared MEMS system." In Photonics Asia 2010, edited by Cunlin Zhang, Xi-Cheng Zhang, Peter H. Siegel, Li He, and Sheng-Cai Shi. SPIE, 2010. http://dx.doi.org/10.1117/12.882704.

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2

Faulring, Eric L., and J. Edward Colgate. "Run-Time Three-Dimensional Blend-Path Generation for Cobot Constraint Surfaces." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33837.

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Анотація:
During human-cobot interaction, transitions often occur between free mode operation and constraint surface following. This paper considers the following typical scenario: an operator of a three-dimensional (e.g. x-y-z or x-y-θ) cobot commands a “join” from free mode to a one-dimensional constraint path. To ensure that this transition is smooth and responsive, a “blend path” is computed that joins the cobot’s initial location to a location on the constraint path. The blend path must match tangency and curvature at each end, and must also exhibit continuous curvature. A novel “triple-clothoid” algorithm is developed that meets these requirements. In addition, we demonstrate that the triple-clothoid is particularly amenable to x-y-θ systems via implementation on a planar cobot.
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3

Nakagawa, Shigeaki, Kuniyoshi Takamatsu, Minoru Goto, Tetsuaki Takeda, and Yasuyuki Nakao. "The Preliminary Analysis of the Loss of Primary Coolant Flow Test in the HTTR." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58282.

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Анотація:
Loss of primary coolant flow test is under planning by using the High Temperature engineering Test Reactor (HTTR). In this test, all the gas circulators are tripped and the position of all control rods keeps its initial one. The new calculation model was developed to perform the preliminary analysis for the test. This model is so improved that an equivalent fuel channel model based on one point kinetics code and a whole reactor model based on two-dimensional thermal analysis code are coupled to simulate the reactor performance during the loss of coolant flow. Both calculation codes were used in the safety evaluation of the HTTR licensing. The improved calculation model was validated by comparison between the calculated result and the experimental one obtained from the coolant flow reduction test in the HTTR. The loss of primary coolant flow test simulates the depressurization accident and the data obtained from the test is useful for the validation and improvement of the calculation code applied to the safety analysis in the future HTGR such as Very High Temperature Reactor which is selected as one of candidates of the generation IV reactor system.
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4

Dschung, F., G. Forster, J. Zierhut, J. L. Marqués, J. Schein, R. Haberbosch, and B. Guide. "Detailed Analysis of the Plasma Jet of F4 and Delta Torches by Means of Tomography." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0477.

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Abstract One important aspect concerning the coating of surfaces using thermal spray is the improvement of the injection of material particles into the gas jet and thus the deposition efficiency. Therefore a better knowledge of the temperature distribution within the jet is relevant in order to optimize spraying conditions. Particularly interesting is the existence of a well-defined threefold finger structure in the plasma jet produced by triple electrode torches, which allows an efficient injection of coating material due to the existence of zones with higher and lower viscosity. The jet structure, however, lacks rotational symmetry and can therefore not be analyzed by systems relying on the validity of the Abel inversion, thus new systems have to be developed. In this work an innovative tomography device is described that has been designed for this purpose. By circling half around the plasma jet and taking simultaneously intensity images under different view orientations, a three-dimensional intensity distribution of the jet is generated, which can be used to determine the temperature distribution.
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5

Schlake, Bryan W., Brian S. Daniel, and Ron Voorheis. "Laser-Based Measurement of Over Dimensional Freight Rail Shipments." In 2012 Joint Rail Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/jrc2012-74065.

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Анотація:
In pursuit of improved safety, Norfolk Southern Corp. (NS) has partnered with Amberg Technologies to explore the potential benefits of a laser-based measurement system for measuring over dimensional freight rail shipments. Shipments that do not fall within a standard geometric envelope, denoted as Plate B in the Association of American Railroads (AAR) Open Top Loading Rules [1], are considered to be over dimensional, or High-Wide Loads (HWLs). Extending beyond the limits of the Plate B diagram, these loads are not permitted in unrestricted interchange service. Instead, they must be measured both at points of origin and at interchange points. For US Class I Railroads, the de facto method for measuring HWLs requires mechanical personnel to either climb on the equipment or use a ladder and physically measure the overall height and width of the load. Using a tape measure, plumb line, and 6-foot level, car inspectors, or carmen, must often make multiple measurements to determine the height or width of a critical point on the load. The summation of these measurements can be subject to mathematical human error. In addition to the inherent limitations with regards to accuracy and efficiency, this method of measurement presents considerable safety challenges. The objective of the project was to develop a portable, cost-effective and accurate measurement system to improve the day-to-day operational process of measuring HWLs and reduce human exposure to railyard hazards. Norfolk Southern worked closely with Amberg Technologies to provide a clear overview of the current measuring methods, requirements, challenges and risks associated with HWLs. Amberg then developed a prototype system (with patent pending) and successful tests have been completed at both a point of origin for NS shipments and at a location where HWLs are received at interchange. The measuring system consists of a tripod mounted laser, a specially designed track reference target (TRT) and software designed specifically for HWL measurements. The system allows car inspectors to take measurements from a safe, strategic location away from the car. As a result, this system eliminates the need to climb on the equipment or a ladder and greatly reduces the amount of time spent on and around live tracks. In addition, initial tests indicate that this technology reduces the labor time required to measure HWLs by as much as one half while improving measurement accuracy. These tests have demonstrated that a laser-based system has the potential to greatly improve the safety, efficiency and accuracy associated with measuring HWLs.
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6

Kubicki, Maciej, Harry Watson, John Williams, and Peter Stryker. "Spatial and Temporal Stress Distributions in Spark Ignition Engine Pistons at Wide Open Throttle." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1726.

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Анотація:
Spatial and temporal stress distributions in two piston geometries for a sinusoidal piston motion engine with different rigid piston-connecting rod attachments were investigated; one was a homogeneous, all-aluminum piston with a bolted connection located remote to the piston crown, and the second was a composite piston structure in which a steel connecting rod is imbedded into the aluminum piston crown. The piston stress response to the applied thermo-mechanical loads was predicted using LUSAS (London University Stress Analysis System). A dynamic finite element analysis of the homogeneous piston was performed for the duration of one complete combustion cycle and a static analysis modeled the two component piston with loads estimated at the time when stress was highest. Two types of thermo-mechanical fatigue were analyzed: low cycle high stress and high cycle low stress. Nodal stress histories at 2000 rpm are presented for equivalent Huber (stress fields equivalent to the three dimensional stress state), radial, hoop, longitudinal, and shear stresses. Specific locations of the maximum compressive and tensile stresses were identified and show that maximum stress occurs at different times for different locations. At nodal locations where mechanical loads counteract thermal expansion forces, stress levels peak at the time when gas pressure is low. Stresses peak at the time of maximum pressure where thermal and mechanical loads have the same sense. The principle of superposition was used to differentiate the thermal and mechanical stress contributions in the piston and, most notably, in the piston crown region. The maximum amplitude and frequency of the thermal and mechanical-thermal stresses indicated high cycle fatigue failure was not likely. However, high compressive stress developed in material weakened by high temperatures is the most likely cause of failure. The two component piston is formed with a steel cone insert cast into the piston. The static results show high local Huber (von Mises) stresses at the dissimilar material interface and the highest value of hoop stress and, consequently, the main cause of large equivalent stress levels is in the steel cone insert. A modified flexible tripod shaped cone resulted in significant reduction of hoop stress in the region of contact with the aluminum. However, the peak equivalent stress present in the aluminum crown of this model was too high for the material to withstand. The last results presented are for the homogeneous piston modified to lower stress concentrations and with boundary conditions modified to represent enhanced cooling of the piston underside. The peak piston temperatures were significantly reduced and consequently the Huber stress levels were reduced. Analysis of the dynamic stresses indicated a low probability for fatigue failure. These results indicated that a homogeneous aluminum piston could become a feasible concept, provided additional piston cooling mechanisms are installed.
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