基于可拓的Vague相似度计算

在Vague的各种理论和应用中,相似度占据着不可低估的重要作用。笔者针对目前相似度的不同研究方法,通过引入点与区间"距"的概念,借助可拓关联函数构建了一种新的相似度度量公式,进而为Vague的研究提供了一种新的思路。最后通过实例验证了该方法的可行性。     

民法基本原则之“公序良俗原则”的思考

在民事立法和民事活动中,注重公共秩序和善良风俗是非常重要的。市场经济社会中,"公序良俗原则"也自应成为民法基本原则之一,这对于维护社会正义、弥补法律缺陷、保护公民权益等方面都具有重要意义。外国民事立法中大多确立了公序良俗的基本原则。我国在未来的民法中也应把公序良俗原则确定为民法的基本原则之一。     

Beurling-Ahlfors扩张的伸张函数增长阶的估值

研究拟对称函数ρ在递减函数ρ(t)控制下时Beurling—Ahlfors扩张的伸张函数D的增长阶，改进了已有的结果，得到：D≤2(ρ 2)。     

南海海盆东-西部地质特征存在巨大差异

南海中部存在巨大的中南断裂将南海海盆分割为东-西两部分,至少自1亿年以来,在沉积环境与沉积厚度、洋陆边界的属性与特征、大陆破裂的时代、岩浆活动的来源与程度、减薄大陆架和大陆坡的宽度、洋壳年龄与磁性层结构、磁异常条带特征、岩石化学等诸多方面都存在巨大差异,它们主要受控于早期地质构造背景的差异、东西部大陆减薄伸展速率的变化以及海底扩张的构造环境的不同,并深刻影响了之后的区域沉积分区和沉降特征。     

现代大学视域下的地方高校治理探析

现代大学理念的提出反映了人们对现实大学改革和发展的需要。地方高校要实现向现代大学的转变,必须先建立以自治、规制与平衡为核心治理原则的现代大学制度。地方高校在向现代大学转变的路径选择上,必须紧密结合地方社会经济的现实需要、发挥科技文化引领作用,必须坚持以办学质量为中心,必须坚守大学人文精神、大学自治、学术自由的信念,回复大学的本真。     

Molecular basis of morphogenesis during vertebrate gastrulation

Gastrulation is a crucial step in early embryogenesis. During gastrulation, a set of morphogenetic processes takes place leading to the establishment of the basic body plan and formation of primary germ layers. A rich body of knowledge about these morphogenetic processes has been accumulated over decades. The understanding of the molecular mechanism that controls the complex cell movement and inductive processes during gastrulation remains a challenge. Substantial progress has been made recently to identify and characterize pathways and molecules implicated in the modulation of morphogenesis during vertebrate gastrulation. Here, we summarize recent findings in the analysis of signaling pathways implicated in gastrulation movements, with the aim to generalize the basic molecular principles of vertebrate morphogenesis.     

Using computational models to discover and understand mechanisms

Areas of biology such as cell and molecular biology have been dominated by research directed at constructing mechanistic explanations that identify parts and operations that when organized appropriately are responsible for the various phenomena they investigate. Increasingly the mechanisms hypothesized involve non-sequential organization of non-linear operations and so exceed the ability of researchers to mentally rehearse their behavior. Accordingly, scientists rely on tools of computational modeling and dynamical systems theory in advancing dynamic mechanistic explanations. Using circadian rhythm research as an exemplar, this paper explores the variety of roles computational modeling is playing. They serve not just to determine whether the mechanism will produce the desired behavior, but in the discovery process of hypothesizing mechanisms and in understanding why proposed mechanisms behave as they do.     

工程中的非稳态温度场和热应力场问题的分析

考虑工程的非稳态温度场和热应力场问题，先后将空间域和时间域离散，从变从原理和伽辽金法导出了非稳态温度场和热应力场的有限元计算式，对工程中的一个轴对称问题进行了分析。     

机构构件位移协调原理的研究

通过对过约束机构的静不定次数进行研究，进而对机构构件的位移协调原理进行研究，推导出机构构件位移协调方程。     

点式LF映射及其扩张定理

本文在点式Fuzzy映射及其扩张定理基础上,讨论了在一般完备格L上的点式LF映射,得到了重要的定理2.2及其它性质,最后将点式LF映射扩张成集式映射.