The principle of virtual work and Hamilton's principle on Galilean manifolds

Seeing maximum entropy from the principle of virtual work

We propose an extension of the principle of virtual work of mechanics to random dynamics of mechanical systems. The total virtual work of the interacting forces and inertial forces on every particle of the system is calculated by considering the motion of each particle. Then according to the principle of Lagrange-d’Alembert for dynamical equilibrium, the vanishing ensemble average of the virtua...

Stochastic variational principle on riemannian manifolds

An Experiment to Test the Galilean Principle of Relativity

It is proposed that a simple experiment utilizing a telescope mounted instrument of an original design, when it is aligned with the assumed Apex of the absolute motion of the Earth, may be able to confirm whether the Galilean Principle of Relativity is also valid in all cases where radiant energy is involved. The result of this test may finally resolve the continuing conflict between those who ...

Sufficient Decrease Principle on Riemannian Manifolds

Tools from Riemannian geometry (suitable Riemannian metric, exponential map, search along geodesics, covariant differentiation, sectional curvature, etc) are now used in Mathematical Programming to obtain deeply theoretical results and practical algorithms [3]-[11]. §1 lists basic propositions appearing in the numerical finding of a critical point of a real function defined on a Riemannian mani...

the survey of the virtual higher education in iran and the ways of its development and improvement

این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.