Cardioversion
发表于 2025-3-23 13:27:57
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清楚说话
发表于 2025-3-23 17:45:44
Properties of UHT-Processed Milk,s by Weitzman (1976), Sato (1981, 1985), Kemp and Long (1982), Samuelson (1971, 1982), Sato, Nono and Mimura (1984), and Sato and Maeda (1987) provide an indication of the rapid progress being made in this field.
choleretic
发表于 2025-3-23 21:59:29
Preliminaries from Number Theory,ach generally taken in these studies is to estimate a specified production relationship. In this paper, we examine two issues related to such estimations: identification problems due to holotheticity, and estimation of the bias of technical change.
破布
发表于 2025-3-24 00:17:57
Book 1990vide a foundation for the study of geometry while geometrical ideas lead to analytical concepts of intrinsic beauty. Arching over many subdisciplines of mathematics and branching out in applications to every quantitative science, these methods are, notes the Russian mathematician A.T. Fomenko, in tu
思想流动
发表于 2025-3-24 05:11:43
Performance of UHT Processing Plant,elation, invariant. Thus, in economics, we can examine whether there exists a transformation to which the indifference curves, subspaces defined by a preference relation, are invariant. However to appreciate the relevance of such a question, it is necessary to have an understanding of the basic prin
Condense
发表于 2025-3-24 10:34:42
Laboratory and Legislative Control,y. where . is assumed to be homogeneous-first-degree, concave, and smoothly differentiable. An optimal control program of intertemporal efficiency requires that, for assigned initial (.., .., ..., ..) and terminal (.., .....) at time . > 0, we must maximize ... This defines the variational problem
愚笨
发表于 2025-3-24 13:03:52
https://doi.org/10.1007/978-1-4615-2157-0dly recognized by Galileo, denied by Descartes, established by Huygens and Newton, culminated in the law of conservation of (mechanical) energy. Mathematically, this law is based upon a property of the calculus of variations according to which the optimizing solution to. has, because the integrand d
Muscularis
发表于 2025-3-24 16:34:45
Laboratory and Legislative Control,eering and applied mathematics. Hamilton’s principle roughly states that the evolution in time of a dynamic system takes place in such a manner that integral of the difference between the kinetic and potential energies for the system is stationary. If the ‘action’ integral is free of the time variab
persistence
发表于 2025-3-24 21:01:17
Properties of UHT-Processed Milk,fferential equations.to be identified with the Euler-Lagrange equations for some Lagrangean .:.where .. The conditions, usually referred to as the Helmholtz conditions due to the initial investigation of Helmholtz (1887), are as follows:
镶嵌细工
发表于 2025-3-25 01:26:05
Properties of UHT-Processed Milk,re is great interest and rapid progress is being made. In economics, the conservation law has its roots in the most celebrated article of Frank Ramsey (1928). But it was Paul A. Samuelson (1970) who first explicitly introduced the concept of conservation law to theoretical economics. The recent work