查询词典 linkages

A series of cholesterol-bearing O-carboxylmethyl chitosan conjugates with different degrees of substitution of the cholesterol moieties and cholesterol-bearing chitosan were synthesized by the succinyl linkages and characterized by Fourier transform infrared, Proton Nuclear Magnetic Resonance (~1H NMR) and elemental analysis. These hydrophobized chitosan derivatives were amphiphilic in nature and their self-aggregation behavior in aqueous media was evaluated by the fluorescence probe technique.

课题的主要研究内容如下：采用化学的方法合成了不同分子结构、不同取代度的系列胆甾醇基壳聚糖衍生物—胆甾醇基壳聚糖和胆甾醇基-羧甲基壳聚糖，并应用先进的分析手段电位滴定、红外光谱法(IR、核磁共振波谱法等对原料、中间产物以及产物进行了结构表征，衍生物分子中的胆甾醇基取代度(3.2％～12.5％)采用元素分析的方法进行检测。

Collagen is the most abundant protein in higher vertebrates, accounting for one-third of the total body protein, collagen resists stretching, is the major component of tendo , and contai one-third glycine and one-fourth proline or hydroxyprolinethe rigid r grou , and the lack of hydrogen bonding by peptide linkages involving proline and hydroxyproline, prevents formation of an ∝-helical structure and forces the collagen polypeptide chain into an odd kinked-type helix.

胶原螺旋是高等脊椎动物中最丰富的一种蛋白质，占动物体蛋白总量的1/3。胶原蛋白中含有1\3的甘氨酸和1\4脯氨酸或羟脯氨酸，能抵抗拉伸，是腱的主要组分。

Only the thermosetting resins provide a strong cohesive forces; this is due to molecular cross linkages

只有热固性树脂具有巨大的凝聚力，这是由于分子交错链所造成的。

This work presents the parametric equations of acceleration poles and the polynomial equations for the loci of acceleration poles of the couplers of two planar linkages. Moreover, the design procedures for synthesizing the mechanisms with a coupler point tracing through two acceleration poles are proposed.

本论文之目的，在於推导两型平面连杆机构耦杆的加速度极心位置之参数式，及其轨迹之多项式方程式，并且分别提出设计程序，藉以合成耦杆点通过两个加速度极心之机构。

In an ultramicroscopic view, the units of cluster value network minifies to the linkages of value chains, the network connections are specified as the linkage connections among value chains, and the network resource is the combination of logistic flow, knowledge flow and capital flow within the cluster.

本文认为，在超微观的视角下，集群价值网(来源：ABC论文9b网www.abclunwen.com)络节点缩小为企业价值链环节，网络联结细化为企业间价值链环节的联系，而网络资源是集群内物流、知识流和资金流的集合。

As numerous complex factors that influence poverty and environmental degradation existed, so poverty-environmental linkages cannot be reduced to simple unidimensional cause-effect relationships.

由于有许多复杂的因素在它们之间发挥着作用，所以，贫困与环境的联系不能被简单认定为一维的因果关系。

This paper discusses kinematic analysis of plane linkages using matrix methods in combination with vector calculus and presents the methods for solving a set of vector equations using approach methods of linear revision.

本文应用矩阵和向量计算相结合的方法，讨论了平面连杆机构的运动分析，并且给出了应用线性修正方法求解联立向量方程组的方法。

Then the paper analyses the vector kinematics equation of the speed, and on this foundation, makes use of the software package of Simulink to carry on kinematic simulation to the mechanism, the kinematic regulation of slip block and linkages provide the basis for the design and manufacture and application of the mechanism.

对其速度运动学方程进行分析，并在此基础上利用MATLAB/Simulink软件包对该机构进行运动学仿真，通过仿真可得到滑块和连杆的运动规律，为机构的设计、制造和应用提供了依据。

The reaction of monoporphyrins having different functional groups with dibromopropane gave metalloporphyrin potassium trimer with two alkoxyl linkages(C144H104N12O8K16)and square array tetramer with the property to quench fluorescence.

利用合成带有混合取代基团的卟啉单体和二溴丙烷反应得到了具有荧光淬灭性质的线状卟啉三聚体C144H104N12O8K16和方阵式四聚体。

The results indicated that the lignin of Bambusa Chungii is a GSH style lignin with a large amount of condensed G style. There were also many ester bond linkages in bamboo Ugnin.

结果表明，竹材木素属于GSH型木素，并且含有大量的缩合G型木素单元，另外竹材木素中存在较多的酯键连接。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。