The ground state corresponds to a bent 2a " sno structure . the state - state correlation and the isomerization mechanism are also predicted by searching the transition states and the intrinsic reaction coordinate analysis 基态结构为弯曲的sno ( ~ 2a )结构,通过寻找过渡态和内禀反应坐标分析预测了各稳定态之间的态态相关和异构化机理。
Oil type 2 , also non - biodegraded , is characterized by extremely high viscosity , relatively high density , low content of saturated fraction , high content of resin and asphaltene and low ratios of isomerization of steranes 第二类原油粘度特大,密度相对较高。族组成以非烃和沥青质组分为主,饱和烃含量低。甾烷异构化指标低,未遭受生物降解。
The progress in sensitizer of photosensitized photoisomerization of norbornadiene , including triplet energy transfer photosensitizer , transition metal compounds photosensitizer , electron transfer photosensitizer and semiconductor photosensitizer , is reviewed 论述了光敏化降冰片二烯异构化反应敏化剂的研究进展,包括三重态能量传递光敏剂,过渡金属化合物光敏剂,电子转移光敏剂,半导体光敏剂等几种类型。
Moreover , azo dyes find wide applicability in reversible optical data storage . the storage process utilizes the light induced trans - cis - trans isomerization of the azo dye , thereby utilizing the local variation of the refractive index of the medium 另外,偶氮类染料在可逆的光信息存储(全息和数字)得到广泛应用,存储过程就是利用光致偶氮类染料的反式?顺式?反式的异构化过程,从而利用介质折射率的局部变化来进行存储。
An one - pot process including direct condensation of ethyl isodehydracetate and hydrocitronellal , followed by decarboxylation , isomerization and isomer resolution , was developed for practical preparation of zr juvenile hormone analogue series with high content of effective component 以异脱氢乙酸乙酯与甲氧基香茅醛直接缩合为起点,将缩合、脱羧、异构化、 (顺、反)异构体拆分等采用多步反应连续一锅法的操作方法,成功地得到高有效含量的zr型保幼激素类似物。
Grid services engineering and management , 2004 , lecture notes in computer science , 3270 : 94 - 106 . 11 ganeriwal s , srivastava m b . trustworthy sensor networks : issues challenges . nesl technical report , august 2004 , http : www . ee . ucla . edu simsaurabh publications tech - report - integrity . pdf 另一方面,网络的异构化和业务多元化日益显著,自治性演化性安全性鲁棒性移动性和服务质量等网络多元化属性需求不断增加,使得传统网络的控制管理平面的功能不断变化。
An one - pot process including direct condensation of ethyl isodehydracetate and hydrocitronellal , followed by decarboxylation , isomerization and isomer resolution , was developed for practical preparation of zr juvenile hormone analogue series with high content of effective component 摘要以异脱氢乙酸乙酯与甲氧基香茅醛直接缩合为起点,将缩合、脱羧、异构化、 (顺、反)异构体拆分等采用多步反应连续一锅法的操作方法,成功地得到高有效含量的zr型保幼激素类似物。
It supports the computer environment of distributed application , realizes the transparent visit of long - range resource , shields the complexity of network and protocol using the interface of top - layer , offers the applied operation and the portability of software based on the distributed platform and operating system 它支持分布异构化计算机环境下的应用,实现远程资源的透明访问,用高层接口屏蔽网络和协议的复杂性,提供异构的平台和操作系统之间应用的互操作性、软件的可移植性。
The behavior of 1 , 6 - enyne in the presence of transition metal catalysts had been extensively studied . 1 , 6 - enyne cycloisomerization reactions catalyzed by transition metals and three different reaction pathways , namely cyclometalation , halorhodation and - allyl rhodium route , divided according to the reaction mechanism are summarized and discussed 摘要1 , 6 -烯炔底物在过渡金属催化剂作用下的化学行为得到了广泛的研究,重点是关于过渡金属催化的1 , 6 -烯炔环异构化反应,从反应机理角度入手,把1 , 6 -烯炔环异构化反应按启动方式总结为三类,关对这三种方式启动的1 , 6 -烯炔构化应进行了详细地总结和阐述。
It is hard to get the important parameters such as link delay and loss rate directly , because the internet has becomes massive , distributed and heterogeneous . network tomography is now a hotspot for inference the internal link delay and loss rate with the end - to - end measurement data . we call current network tomography as unconstraint network tomography for its not adding any constraint condition and all of them nearly are based on some likelihood algorithm 由于网络日益向着大型化、异构化、分布化发展,通过直接进行网络测量的方法,来获得网络内部链路的时延和丢包率参数就变得越来越困难,网络层析成像方法作为一种通过端到端的测量数据来推断网络链路性能参数的技术正成为研究的热点之一。