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NON-UNIQUENESS: 作品数：18被引量：7H指数：2; 导出分析报告; 相关领域：理学更多>>; 相关期刊：《Acta Mechanica Solida Sinica》《Advances in Materials Physics and Chemistry》《Geoscience Frontiers》《Journal of Partial Differential Equations》更多>>; 相关基金：国家自然科学基金上海市教育委员会重点学科基金国家教育部博士点基金更多>>

Radon Measure Solutions to Riemann Problems for Isentropic Compressible Euler Equations of Polytropic Gases被引量：1: 《Communications on Applied Mathematics and Computation》2023年第3期1097-1129,共33页Yunjuan Jin Aifang Qu Hairong Yuan; supported by the National Natural Science Foundation of China under Grants No.11871218,No.12071298;the Science and Technology Commission of Shanghai Municipality under Grant No.18dz2271000.; We solve the Riemann problems for isentropic compressible Euler equations of polytropic gases in the class of Radon measures,and the solutions admit the concentration of mass.It is found that under the requirement of ...; 关键词：Compressible Euler equations Radon measure solution Delta shock Riemann problem NON-UNIQUENESS

A New DGM(1,1)Model with a Grey Parameter and Its Application: 《Journal of Systems Science and Information》2022年第3期297-308,共12页Xin ZENG Jun LIU Fuxiang LIU Hongmei LIU; Supported by the National Natural Science Foundation of China(11771172)。; In the DGM(1, 1) model modeling process, the influencing factors are uncertain. But the solution of DGM(1, 1) model with uncertain information is unique, which conflicts with the nonuniqueness principle of solution in...; 关键词：DGM(1 1)model non-uniqueness principle of solution interval grey number maximum possibility whitenization value

Experimental Study on Vortex Growth during the Early Development of Rotating Disks: 《World Journal of Mechanics》2022年第3期41-50,共10页Hiroyuki Furukawa Takeomi Yamazaki; In previous studies, the effects of radial clearance on the flow of a rotating disk in a cylindrical vessel have been investigated by using rotating disks of different shapes. As a result, different flow phases were o...; 关键词：Rotating Disk Experimental Study Flow Instability NON-UNIQUENESS

Non-Uniqueness of Einstein’s Special Relativity, and the Inconclusiveness of High Energy (Relativistic) Physics: 《Journal of Modern Physics》2021年第9期1295-1345,共51页Georg von Brzeski Vadim von Brzeski; In this paper, we present a new form of “special relativity” (BSR), which is isomorphic to Einstein’s “special relativity” (ESR). This in turn proves the non-uniqueness of Einstein’s “special relativity” and i...; 关键词：Lobachevskian (Hyperbolic) Geometry Lorentz Group SL (2C) Action “Special Relativity” High Energy (Relativistic) Physics “Paradoxes” Deep Space Astrophysics Cosmology

Non-uniqueness of critical solid fraction considering boundary conditions and strain-rate effects: 《Particuology》2021年第1期37-49,共13页Mingze Xu Zixin Zhang Xin Huang Kevin J.Hanley; This work was supported by the National Natural Science Foun-dation of China(grant numbers 41672262,41877227);the National Key Research and Development Program of China(grantnumber 2017YFC0806004).; The critical solid fraction(ϕJ),which marks the transition between the solid and liquid phases in the jamming diagram,is influenced by several factors.In this study,the dependency ofϕJ on strain rate and boundary cond...; 关键词：Jamming transition Jamming density Strain rate dependency Boundary effects

The Riemann Problem for a Blood Flow Model in Arteries被引量：3: 《Communications in Computational Physics》2020年第1期227-250,共24页Wancheng Sheng Qinglong Zhang Yuxi Zheng; supported by NSFC 11371240,11771274;supported by the State Scholarship Fund from China Scholarship Council(201706890042).; In this paper,the Riemann solutions of a reduced 6×6 blood flow model in mediumsized to large vessels are constructed.The model is nonstrictly hyperbolic and non-conservative in nature,which brings two difficulties o...; 关键词：Blood flow elementary waves Riemann problem NON-UNIQUENESS global entropy condition

Construction of Equivalent Functions in Anisotropic Radon Tomography: 《Applied Mathematics》2019年第1期1-10,共10页William Menke; We consider a real-valued function on a plane of the form m(x,y,θ)=A(x,y)+Bc(x,y)cos(2θ)+Bs(x,y)sin(2θ)+Cc(x,y)cos(4θ)Cs(x,y)sin(4θ) that models anisotropic acoustic slowness (reciprocal velocity) perturbations. ...; 关键词：Geotomography RADON Transform Acoustic ANISOTROPY NON-UNIQUENESS NULL Space

Study on Non-Uniqueness of Taylor Vortex Flow Changing Inner Cylinder Acceleration Time: 《World Journal of Mechanics》2018年第8期301-310,共10页Hiroyuki Furukawa Tomohito Suzuki; In concentrically rotating double cylinders consisting of a stationary outer cylinder a rotating inner cylinder, Taylor vortex flow appears. Taylor vortex flow occurs in journal bearings, various fluid machineries, co...; 关键词：ROTATING Cylinders Flow INSTABILITY BIFURCATION EFD and CFD NON-UNIQUENESS

Uncertainty analysis of gravity data inversion: 《Global Geology》2018年第1期48-54,共7页SHI Jianan MA Guoqing; Supported by projects of the National Key Research and Development Plan(Nos.2017YFC0602203,2017YFC0601606);the National Science and Technology Major Project Task(No.2016ZX05027-002-03);National Natural Science Foundation of China(Nos.41604098,41404089,41430322); The traditional gravity modelling methods fail to deal with ambiguity zones. These zones are likely to be associated with uncertain boundaries. Source boundaries can be divided into "hard "and "soft "types."Hard"bound...; 关键词：AMBIGUITY ZONES NON-UNIQUENESS error BARS ITERATION INVERSION data fitting

On the evolution of terrestrial planets:Bi-stability,stochastic effects,and the non-uniqueness of tectonic states被引量：1: 《Geoscience Frontiers》2018年第1期91-102,共12页Matthew B.Weller Adrian Lenardic; supported in part by the Cyberinfrastructure for Computational Research funded by NSF under Grant CNS-0821727;the Data Analysis and Visualization Cyberinfrastructure funded by NSF under grant OCI-0959097;Rice University; The Earth is the only body in the solar system for which significant observational constraints are accessible to such a degree that they can be used to discriminate between competing models of Earth's tectonic evoluti...; 关键词：Planetary INTERIORS MANTLE convection Lid-state Bi-stability Thermal EVOLUTION

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