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91.
The uniqueness and reciprocal theorems are proved without the use of Laplace Transforms for the Dual-Phase-Lag thermoelasticity theory. Variational principle is established for a linear anisotropic and inhomogeneous thermoelastic solid. The dissipative inequality is used to obtain a continuous dependence result for isotropic solid. 相似文献
92.
Let A be a representation-finite simply connected algebra, and TAbe an arbitrary tilting module (in the sense of Happei and Ringel). We show that B = End TA satisfies the separation condition of Bautista, Larrion and Salmeron. This implies that B is also simply connected. 相似文献
93.
94.
95.
G. Yin H. Yang† 《Stochastics An International Journal of Probability and Stochastic Processes》2013,85(2):77-99
This work is concerned with two-time-scale jump diffusion models modulated by continuous-time Markov chains. One of our motivations stems from generalization of insurance risk models. The models are hybrid in the sense that they involve both continuous dynamics and discrete events. Two cases are considered. One of them has a fast-varying switching process, and the other contains a rapidly fluctuating diffusion. Two-time scale is used for complexity reduction. Using weak convergence methods, we derive their limit processes. The insight and implication provided by the analysis are: to reduce the complexity, one can ignore the detailed variations and concentrate on the limit or the reduced models. 相似文献
96.
Mahmoud Labib Martin Hedström Magdy Amin Bo Mattiasson 《Analytical and bioanalytical chemistry》2010,397(3):1217-1224
A novel technique for monitoring of low molecular mass analytes using a flow-injection capacitive biosensor is presented.
The method is based on the ability of a small molecular mass analyte to displace a large analyte–carrier conjugate from the
binding sites of an immobilized biorecognition element with weak affinity to both compounds. A model study was performed on
glucose as the small molecular mass analyte. In the absence of glucose, binding of a glucose polymer or a glycoconjugate to
concanavalin A results in a capacitance decrease. Upon introduction of glucose, it displaces a part of the bound glucose polymer
or glycoconjugate leading to a partial restoration of capacitance. Experimental results show that the change in capacitance
depends linearly on glucose concentration within the range from 1.0 × 10−5 to 1.0 × 10−1 M, corresponding to 1.8 μg ml−1 to 18 mg ml−1 in a logarithmic plot, with a detection limit of 1.0 × 10−6 (0.18 μg ml−1) under optimized conditions. In addition, by modifying the molecular mass of the glucose polymer, amount of biorecognition
element, and buffer composition, we were able to tune the analyte-sensing range. The developed technique has the benefits
of expanded dynamic range, high sensitivity, and excellent reusability. 相似文献
97.
In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, has a standard connecting component), then it has Galois coverings associated to the coverings of the connecting component. As a consequence, the first Hochschild cohomology group of a standard laura algebra vanishes if and only if it has no proper Galois coverings. 相似文献
98.
E.J. Richards† 《International Journal of Mathematical Education in Science & Technology》2013,44(4):377-395
This paper explores the growth of mathematical studies in recent times and suggests future patterns that may occur in mathematical curricula. It is proposed that courses in the History and Methods of Mathematics, Mathematical Engineering (rather than Engineering Mathematics) and Mathematics and Education should be used to widen the curriculum choices for the mathematical student of the future. Finally, in illustrating the application of mathematics to the study of Noise and Vibration it is shown that, in such an investigation, mathematics cannot be an end in itself but can be greatly helped by a knowledge of other physical disciplines. 相似文献
99.
K.B. Haley† 《International Journal of Mathematical Education in Science & Technology》2013,44(4):343-347
The paper reviews the history of education in operational research and indicates the needs both of a practitioner and of a manager. It describes how these can be met by standard course teaching and suggests some areas of development. 相似文献
100.
Let a finite dimensional algebra R be a split extension of an algebra A by a nilpotent bimodule Q. We give necessary and sufficient conditions for a (partial) tilting module TA to be such that T?A RR is a (partial) tilting module. If this is not the case, but QA is generated by the tilting module TA , then there exists a quotient [Rbar] of R such that T?A [Rbar][Rbar] is a tilting module. 相似文献