在几何和参数上表示同一条曲线的两条有理NURBS曲线的权与控制顶点之间的关系

The paper discusses the relationship between weights and control vertices of two rational NURBS curves of degree two or three with all weights larger than zero when they represent the same curve parametrically and geometrically, and gives sufficient and necessary conditions for coincidence of two rational NURBS curves in non-degeneracy case.     

Formation of Pyrrolidin-1-ylcyclopentadienes via Cyclization of Alkyl 2-Dimethoxyacetyl-and 2-Ethoxalyl-4-oxopentanoates

ＦｏｒｍａｔｉｏｎｏｆＰｙｒｒｏｌｉｄｉｎ┐１┐ｙｌｃｙｃｌｏｐｅｎｔａｄｉｅｎｅｓｖｉａＣｙｃｌｉｚａｔｉｏｎｏｆＡｌｋｙｌ２┐Ｄｉｍｅｔｈｏｘｙａｃｅｔｙｌ┐ａｎｄ２┐Ｅｔｈｏｘａｌｙｌ┐４┐ｏｘｏｐｅｎｔａｎｏａｔｅｓ＊ＺＨＵＹｉ－ｑｉａｎｇ,...     

Electrochemical Probe of Hydroxylation of 4-Nitro-phenol by Cytochrome C with Hydrogen Peroxide

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＰｒｏｂｅｏｆＨｙｄｒｏｘｙｌａｔｉｏｎｏｆ４┐Ｎｉｔｒｏ┐ｐｈｅｎｏｌｂｙＣｙｔｏｃｈｒｏｍｅＣｗｉｔｈＨｙｄｒｏｇｅｎＰｅｒｏｘｉｄｅ＊ＺＨＵＹｉ－ｍｉｎ,ＷＡＮＧＪｉｎ－ｃｈｅｎｇ＊＊,ＬＩＪｉｎｇ－ｈｏｎｇａｎ...     

Ab Initio Studies on the Structure and Binding Interaction of M~ CO_2(M=Sc,Ti…Zn)

ＡｂＩｎｉｔｉｏＳｔｕｄｉｅｓｏｎｔｈｅＳｔｒｕｃｔｕｒｅａｎｄＢｉｎｄｉｎｇＩｎｔｅｒａｃｔｉｏｎｏｆＭ＋ＣＯ２（Ｍ＝Ｓｃ,Ｔｉ…Ｚｎ）＊ＦＡＮＨｏｎｇ－Ｊｕｎ,ＺＨＯＮＧＳｈｉ－Ｊｕｎ,ＬＩＵＣｈｕｎ－Ｗａｎ＊＊（ＦｕｊｉａｎＩｎｓｔｉｔｕｔｅｏ...     

一种高精度的修正Hermite-ENO格式

设计一种基于三单元具有六阶精度的修正Hermite-ENO格式（CHENO）,求解一维双曲守恒律问题.CHENO格式利用有限体积法进行空间离散,在空间层上,使用ENO格式中的Newton差商法自适应选择模板.在重构半节点处的函数值及其一阶导数值时,利用Taylor展开给出修正Hermite插值使其提高到六阶精度,并设计了间断识别法与相应的处理方法以抑制间断处的虚假振荡;在时间层上采用三阶TVD Runge-Kutta法进行函数值及一阶导数值的推进.其主要优点是在达到高阶精度的同时具有紧致性.数值实验表明对一维双曲守恒律问题的求解达到了理论分析结果,是有效可行的.     

Studies on the Conformation of Poly(1-naphthol) Assembled by Horseradish Peroxidase in Aqueous Micelle

ＳｔｕｄｉｅｓｏｎｔｈｅＣｏｎｆｏｒｍａｔｉｏｎｏｆＰｏｌｙ（１┐ｎａｐｈｔｈｏｌ）ＡｓｅｍｂｌｅｄｂｙＨｏｒｓｅｒａｄｉｓｈＰｅｒｏｘｉｄａｓｅｉｎＡｑｕｅｏｕｓＭｉｃｅｌｅ＊ＣＨＥＮＳｏｎｇ－ｍｉｎｇ＊＊,ＺＨＡＮＧＸｕｅ－ｚｈｏｎｇ,ＣＨＡＩ...     

Direct Generation of Tunable UV Picosecond Laser Pulses Using Spectrotemporal Selection

ＤｉｒｅｃｔＧｅｎｅｒａｔｉｏｎｏｆＴｕｎａｂｌｅＵＶＰｉｃｏｓｅｃｏｎｄＬａｓｅｒＰｕｌｓｅｓＵｓｉｎｇＳｐｅｃｔｒｏｔｅｍｐｏｒａｌＳｅｌｅｃｔｉｏｎＮｇｕｙｅｎＤａｉＨｕｎｇ１）ＹｕｓａｂｕｒｏＳｅｇａｗａ（ＰｈｏｔｏｄｙｎａｍｉｃＲｅｓｅａ...     

Generation of Fundamental Dark Soliton Train in Positive Dispersion-decreasing Fibers

ＧｅｎｅｒａｔｉｏｎｏｆＦｕｎｄａｍｅｎｔａｌＤａｒｋＳｏｌｉｔｏｎＴｒａｉｎｉｎＰｏｓｉｔｉｖｅＤｉｓｐｅｒｓｉｏｎｄｅｃｒｅａｓｉｎｇＦｉｂｅｒｓＸＵＷｅｎｃｈｅｎｇＷＥＮＳｈｕａｎｇｃｈｕｎ１）ＧＵＯＱｉＬＩＡＯＣｈａｎｇｊｕｎＬＩＵＳｏｎ...     

Quick Approximate Calculation on the Transient Temperature Field of Laser Heat Treatment

ＱｕｉｃｋＡｐｐｒｏｘｉｍａｔｅＣａｌｃｕｌａｔｉｏｎｏｎｔｈｅＴｒａｎｓｉｅｎｔＴｅｍｐｅｒａｔｕｒｅＦｉｅｌｄｏｆＬａｓｅｒＨｅａｔＴｒｅａｔｍｅｎｔＬＩＪｕｎｃｈａｎｇＭｅｒｌｉｎＪ．（＋）ＣＨＥＮＪｉｎｂｏＦＡＮＺｅｂｉｎ（ＬａｓｅｒＲｅｓ...