HL定理（英文：HLtheorem）是判定两个直角三角形全等的定理。该定理通过判定两个直角三角形的斜边和一条直角边对应相等来判定两个直角三角形全等。该定理是两个三角形“边边角”（SSA）的特殊情况，即三角形的两边和其中一边的对角分别相等的两个三角形全等。直角三角形可以通过勾股定理转化为“SSS”或“SAS”。一般...
WHEN Boltzmann first published the celebrated theorem now generally known as the H-theorem, he used the symbol E (presumably as the first letter of entropy), not H. It has been suggested that when H was first used for this theorem it was intended to be t
WHEN Boltzmann first published the celebrated theorem now generally known as theH-theorem, he used the symbolE(presumably as the first letter ofentropy), notH. It has been suggested that whenHwas first used for this theorem it was intended to be the capital Greek lettereta: but the first p...
但事实上他和Loschimidt是很好的朋友,所以Boltzmann紧接着在1877年发表《Uber die Beziehung eines allgemeine mechanischen Satzes zum zweiten Hauptsatze der Warmetheorie》(On the Relation of a General Mechanical Theorem to the Second Law of Thermodynamics )怼了回去,他的核心观点是,以均匀分布为平衡态为例...
[玻尔兹曼]H 定理 [玻尔兹曼]H 定理是2019年公布的物理学名词。 公布时间 2019年全国科学技术名词审定委员会公审定布的物理学名词。出处 《物理学名词》。
(ii) realizes, for example, for an electron interacting with the random ensemble of 3D nuclear spins, so that the vanishing of the averaged commutators occurred at the macro-level in the thermodynamic limit of the large spin ensemble. Importantly, the above formulation of theH-theorem applies ...
By means of an H-theorem it is shown that transient solutions of one-variable Fokker–Planck equations with drift terms depending on process mean values converge to stationary distributions. Thus, Shiino's H-theorem for the mean field Fokker–Planck equation proposed by Desai and Zwanzig is gener...
坡印廷定理，英文表示Poynting theorem，是1884年约翰·坡印亭（John Poynting）提出的关于电磁场能量守恒的定理。他认为电磁场中的电场强度E与磁场强度H叉乘所得的矢量,即E×H=S，代表电磁场能流密度，表示一个与垂直通过单位面积的功率相关的矢量。人们称这个矢量S为坡印廷矢量。坡印廷定理表明，在电磁场中的任意...
In the 1870-s, Ludwig Boltzmann published his celebrated kinetic equation and the H-theorem1,2 that gave the statistical foundation of the second law of thermodynamics3. The H-theorem states that if f(x; v; τ) is the distribu- tion density of molecules of the ideal gas at the time ...