英语人>网络例句>化 相关的搜索结果
网络例句

与 化 相关的网络例句 [注:此内容来源于网络,仅供参考]

We present a general method to construct blinding functions of discrete-logarithm-based (simply DL-based) blind signature schemes by analyzing the algebraic form of blinding function, thus solve the problem of blinding DL-based signature schemes completely.

从盲函数的代数形式入手给出盲函数的构造方法,完整地解决了基于离散对数数字签名的盲问题,对可盲的情况给出统一的最一般的盲方案,对不可盲的情况证明其不可盲

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物,其基因体资讯提供植物学研究的重要依据;在解析阿拉伯芥属物种的亲缘关系以及种机制等重要的演议题时,阿拉伯芥近缘的野生物种自然成了不可或缺的关键;跟阿拉伯芥近缘的物种包括A halleri及A lyrata,其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾,与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽,而A lyrata ssp kamchatica主要分布於东北亚及台湾,与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔,这样的分布模式暗示异域种的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种时期的族群遗传结构,本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种,两对互为亚种的姊妹群,以阿拉伯芥为外群进行研究,在四个物种完成98个同源基因的分子序列,利用套装软体MCMCcoal来估算祖先物种的遗传变异,亦估算现生物种的核苷酸歧异度,观察到?多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度,显示异域种模型并无法完全解释阿拉伯芥属物种的种模式,在某些物种配对间邻域种模式应比异域种更为可能;在基因树与物种树的比较,98个基因片段的亲缘模式只有28个是与已知物种树一致的,有23个基因其树状图支持{ lyrata} thaliana的型式,藉由kamchatica位置的变以及估算各物种配对间的平均同义置换率,推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

Field obserbation and laboratory study indicate the main type of rock alterationwere K-feldsparization, biotitization, sericitization, silication, epidotization,chloritization and carbonatization. From early to late, these alteration could dividedinto three epochs: early-stage was K-feldsparization-biotitization, middle-stage wasquartzification -sericitization, late-stage was silication, carbonatization, epidotizationand chloritization.

通过野外观察及室内研究表明,围岩蚀变类型主要有钾长石、黑云母、绢云母、硅、绿帘石、绿泥石和碳酸盐,从早至晚可分为三期:早期为钾长石-黑云母;中期为石英-绢云母;晚期为硅、碳酸盐和绿泥石、绿帘石

Has become the essential invertor in each kind of domain, along with on-off element large capacity and high frequency, microcomputer high performance and control technology and return route integration, may realize invertor's miniaturization, the high response, the high efficiency output and high reliable.

在各种领域已成为不可缺少的逆变器,随着开关元件大容量和高频、微机高性能和控制技术和回路集成,可实现逆变器的小型、高响应、大功率输出和高可靠

This paper determines the design idea of combining VISC with structural optimization design. Problems which existed in structural optimization design are analyzed and contents of optimization process are determined. Calling and dominating calculation program written in FORTRAN in the development environment of Delphi are realized by the techniques of FORTRAN/Delphi mixed-language programming and multi-threaded application. Parallel coordinates visualization technology is deeply researched and applied in software exploitation of optimization process. Essential programs of VISC software are compiled. Approaches which can improve efficiency of optimization are discussed. In the end, functional modules are integrated and a typical computational example is verified.

本文通过对结构优设计和科学可视的研究,确立了天线结构优设计与科学计算可视技术紧密结合的思路;根据天线结构优设计的特点,针对优设计中存在的问题,对系统结构优的总体框架进行了分析和论述,确定了优过程可视的具体内容;通过FORTRAN与Delphi的混合语言编程实现了在Delphi环境下对FORTRAN计算程序的调控,充分利用了原有FORTRAN程序资源;对平行坐标技术进行深入研究,并将其应用于优过程可视模块的软件开发中,实现多维数据空间的可视;编写优计算过程可视软件的核心程序;探讨了提高优效率的途径;对基于可视的天线结构优设计软件系统进行集成,针对某天线进行了算例验证。

According to geological characteristics of mineral area,geological conditions of mineralization,geochemical characteristics,material sources of mineralization,mineralization patterns,as well as physical and chemical conditions of mineralization,it summarize the mineralization pattern and genesis of ore deposit of Xianghualing mining areas,considering that mineralization materials in this deposit mainly come from magma,genesis patterns of deposit include high-temperature gas-liquid Nb、Ta deposit related to albitization laying in or on the edge of granite rock bodies,median-high temperature Skarn Sn,Be deposit related to skarnized laying at the inner contact-belt of granite and carbonate rock bodies;median-high temperature cassiterite -sulphide mineral deposit related to skamized laying at outer contact-belt of granite and carbonate rock bodies and median-low temperature hydrothermal liquid Pb-Zn-Ag deposit related to silicification,fluorite, propylitization laying in wall rocks;Series of generalized magma- hydrothermal liquid type Sn-polymatellitic related to magmatic activity in Yanshan period as a whole.

通过对矿区地质特征、成矿地质条件、地球学特征、成矿物质来源、成矿作用、矿型式以及成矿物理学条件的分析,总结了香花岭矿区的矿床成因以及成矿模式,认为香花岭锡多金属矿成矿物质主要来源于岩浆,矿床成因类型包括花岗岩体内及其边部产出的与钠长岩有关的高温气液型Nb、Ta矿床、花岗岩体与碳酸盐岩内接触带产出的与矽卡岩有关的中高温矽卡岩型Sn、Be矿床、花岗岩体与碳酸盐岩外接触带产出的与矽卡岩有关的中高温锡石硫物矿床以及围岩中产出的与硅、萤石、青磐岩有关的中低温热液型铅锌银矿床,整体构成与燕山期岩浆活动有关的广义岩浆热液型锡多金属成矿系列

The main products are inorganic fluoride, with the integrated capacity of 150 thousand tons per year, our main products are: synthetic cryolite, aluminium fluoride, sodium fluoride, silica white, hydrofluoride, potassium fluoroborate, potassium fluotitanate, potassium aluminium fluoride, magnesium fluoride, barium fluoride, lithium fluoride ,potassium fluoride, magnesium fluorosilicate, potassium fluorosilicate, potassium fluorosilicate etc.

多氟多公司生产区多氟多工股份有限公司,公司注册资本8000万元,为河南省高新技术企业,是中国最大的无机氟盐生产基地之一。综合产能15万吨/年,主要产品有冰晶石、氟铝氟钠、白炭黑、氢氟酸、氟硼酸钾、氟钛酸钾、氟铝酸钾、氟镁、氟钡、氟锆酸钾、氟氢铵、氟铵、氟钾、氟锂、氟硅酸钠、氟硅酸钾、氟硅酸镁等。

This article firstly describes the survival situation, discussing the concept of "what is the documentary","what is the columnized survival" and the relation between documentary and columnized survival. It narrates the development of documentary with columnized survival from three stages, analyzing the characteristic of current-trend on selected topic, plebification of narrating angle and the diversification of performance.

这篇论文首先描述了中国纪录片栏目生存的整体状况,对&什么是纪录片&、&什么是栏目生存&、&纪录片与栏目生存的关系&这三个问题进行概念界定与理论探讨,并以&节目生存&、&栏目生存&以及&走向频道&三个发展阶段叙述了纪录片栏目生存的发展历程,分析概括出创作选题主流、叙述视角平民、表现手法多元等生存特征。

In different conditions on fluidized state and stability of conical fluidized bed. The conlusions are: the conical angel of the conical fluidized bed is 20°, the fluidized state havesmall difference in conical distributor and distributor plate. The angle of conical bed increase,the fluidized state will have big difference. The angle is 60°and the conical as distributor, themass of fluidized is less, the most of material is the bottom of conical bed. The effect ofdistributor plate is much better than the conical distributor. Sawdust and rice hull can fluidize.The annular gap of conical distributor different, the angle of conical bed is same, the fluidizedquality of 10mm annular gap is better than the other conical distributors. The annular gap ismore wide, the conical bed have more slugging phenomenon and the pressure fluctuate is turnbig.In the experiment the flow of 2%and 4%distributor plates don\'t easy to control, becausethe pressure is very big and the pressure fluctuate of conical bed is too big.

在不同的条件下对锥形床的流状态和稳定性进行了研究,结果得出:锥形床的锥角为20度时,分布锥和分布板的流状态相差不明显,随着锥形床锥角的增大,分布锥和分布板的流现象会出现明显的变,锥形床锥角越大,分布锥的流状态变越明显,流的的物料越少,大量物料都聚集在锥形床底部,而分布板在加料量少的情况下,能流起来。10mm、15mm和20mm环隙分布锥在锥形床锥角相同条件下,10mm环隙分布锥的流质量要好于其它两个分布锥,环隙越大越容易出现腾涌现象的产生,压降波动范围增大。2%、4%和6%开孔率分布板在本实验测定时,2%和4%开孔率分布板的流量不容易调节,同时产生的压降波动范围也很大,比较来说,6%开孔率分布板流质量好些。

These were the 5th, 6th and 8th Cavalry Brigades, which formed the Cavalry Corps that was subordinated to the 3rd Army during the 1941 campaign. A motorized brigade was made up from one motorized cavalry regiment, 2 cavalry regiments, one horse artillery regiment (2 battalions of 2 75 mm howitzer batteries each), one motorized 81.4 mm mortar squadron, one motorized AT and AA gun squadron, one motorized machine-gun squadron, one motorized pioneer squadron, one motorized communications squadron and one mechanized recon squadron (2 R-1 light tank platoons of 3 tanks each, one motorized cavalry platoon, one motorcycle platoon).

第5,6和8骑兵旅组成骑兵军在第3集团军的指挥下参与了1941年的战役。1个摩托旅由1个摩托骑兵团,2个骑兵团,1个马拉炮兵团(2营,每营包括2个75mm榴弹炮分队),1个摩托81.4mm迫击炮连,1个摩托反坦克和防空,1个摩托机枪连,1个摩托工兵连,1个摩托通讯连和1个机械侦察连(2个R-1坦克排,每排3辆坦克。1个摩托骑兵排和1个摩托车排)。

第3/100页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。