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[期刊论文] 作者：Zhang Yi,
来源：学术界 年份：2020
The supervisory system and the examination system are two indigenous political systems of China,and the former has a longer history than the latter when it come...
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2008
This paper focuses on studying a Hojman conserved quantity directly derived from a Lie symmetry fora Birkhoffian system in the event space.The Birkhoffian...
Symmetries and Two Types of Non-Noether Conservation Laws of Birkhoffian System with Unilateral Cons
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2006
对称和有单方的限制的 Birkhoffian 系统的 non-Noether 能量守恒定律被学习。系统的运动的微分方程被建立，并且 Noether 对称，谎言对称和系统的 Mei 对称的标准被给。新能量守...
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2005
In this paper, we present a new method to construct the conservation laws for relativistic mechanical systems by finding corresponding integrating factors. Firs...
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2008
For a Birkhoman system in the event space,a general approach to the construction of conservation lawsis presented.The conservation laws are constructed by...
Generalized Lutzky Conserved Quantities of Holonomic Systems with Remainder Coordinates Subjected to
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2006
This paper focuses on studying the relation between a velocity-dependent symmetry and a generalizedLutzky conserved quantity for a holonomic system with re...
[期刊论文] 作者：ZHANG Yi,,
来源：Chinese Geographical Science 年份：2018
The aim of this study was to better understand the mechanisms of regional climate variation in mountain ranges with contrasting aspects as mediated by changes in global climate. It may help predict tr...
Joint Action Initiative to Meet Global Challenges and Build a Community with a Shared Future for Man
[期刊论文] 作者：Zhang Yi,
来源：国际交流:英文版 年份：2020
We have but one planet in the universe that we call home.Public health security is a common challenge that we all face,and major infectious diseases are common...
[期刊论文] 作者：Zhang Yi,
来源：当代中国人口：英文版 年份：2011
...
[期刊论文] 作者：Zhang Yi,
来源：环球市场信息导报（理论） 年份：2011
...
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯：英文版 年份：2009
在这篇论文，在事件空格的概括 Birkhoff 系统的能量守恒定律被使用集成因素的方法学习。第一，概括 Pfaff Birkhoff 原则和概括 Birkhoff 方程被建立，并且为系统的集成的因素的定...
[期刊论文] 作者：ZHANG Yi,
来源：数学季刊：英文版 年份：2015
...
[期刊论文] 作者：ZHANG Yi,
来源：兵工学报（英文版） 年份：2010
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
Symmetries and Two Types of Non-Noether Conservation Laws of Birkhoffian System with Unilateral Cons
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯（英文版） 年份：2004
The symmetries and non-Noether conservation laws of Birkhoffian system with unilateral constraints are studied. The differential equations of motion of the syst...
Generalized Lutzky Conserved Quantities of Holonomic Systems with Remainder Coordinates Subjected to
[期刊论文] 作者：ZHANG Yi,
来源：理论物理通讯（英文版） 年份：2004
This paper focuses on studying the relation between a velocity-dependent symmetry and a generalized Lutzky conserved quantity for a holonomic system with remain...
[期刊论文] 作者：ZHANG Yi,
来源：图书馆论坛 年份：2004
从民间征集图书是中国古代官府常用的图书收集办法.文章介绍了官府征书的由来和它的几大特点,以及征书的作用和历史意义....
[期刊论文] 作者：ZHANG Yi,
来源：自然科学进展 年份：2004
A general approach to the construction of conservation laws for mechanical systems with unilateral holonomic constraints by finding corresponding integrating fa...
[期刊论文] 作者：ZHANG Yi,
来源：黑龙江科技学院学报 年份：2011
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：Zhang Yi,
来源：中国物理（英文版） 年份：2006
The perturbations to symmetries and adiabatic invariants for nonconservative systems of generalized classical mechanics are studied. The exact invariant in the...
[期刊论文] 作者：Zhang Yi,
来源：中国物理B(英文版) 年份：2008
For a Birkhoffian system in the event space, this paper presents the Routh method of reduction. The parametric equations of the Birkhoffian system in the event...
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