化学本质

猪脾来源免疫抑制组分的分离及其化学本质的研究

Fractionation of Immunosuppressive Component Derived from Porcine Spleen and Studies on Its Chemical Essence

介绍食物过敏原的命名规则，综述过敏原的化学本质、结构及其对过敏性的影响，并介绍食物过敏原的消除与控制方法等。

The denomination rules , chemical essence and structure of allergen as well as irritability , elimination and control of food allergen were reviewed .

随着人们对CD44生物学功能和化学本质的逐渐认识，发现CD44分子与POAG发病有关。

Accompanied with the study of biological functions and chemical characters of CD44 , it is found that CD44 is connected with the onset of POAG .

TDSF有兔疫抑制作用：能够抑制T淋巴细胞对PHA的增殖反应，抑制T淋巴细胞分泌IL2，抑制外源性IL2的淋巴细胞的增殖反应，其化学本质为蛋白质。

TDSF was able to inhibit PHA-stimulated proliferation of lymphocytes , the IL-2 production of PHA-stimulated lymphocytes and the IL-2-dependent proliferation of activated lymphocytes . TDSF is protein in chemical nature .

苦马豆素（swainsonine，SW）是豆科黄芪属和棘豆属有毒植物（疯草）的主要有毒成分，其分子质量小，化学本质为多羟基吲哚里西啶生物碱。

Swainsonine ( SW ) is the primary toxicant in locoweeds within the genera Oxytropis and Astragalus , with a small molecular weight and chemically being indolizidine alkaloid .

自1987年认识到内皮细胞舒张因子（EDRF）的化学本质即一氧化氮（NO）以来，该领域的研究已较广泛，1992年被评为年度分子（themoleculeoftheyear）。

Since 1987 the chemical nature of endothelium - derived relaxing factor ( EDRF ) was recognized as nitric oxide ( NO ) , studies on NO have widely been unfolded . In 1992 NO was appraised as the molecule of the year .

测定了大西洋牙鲆幼鱼在禁食和静息状态下的呼吸耗氧率、氨氮排泄率和CO2排出率；研究了它们的呼吸商、氧氮比、能量代谢的特征和能源的化学本质。

The oxygen consumption rate , ammonia excretion rate and CO_2 emission rate of the juvenile summer flounder ( Paralichthys dentatus ) in fasting and resting states were determined , and the respiratory quotient , oxygen-nitrogen ratio , energy metabolism characteristics and chemical nature of energy source were also studied .

FT-SPR技术为生命和材料科学的研究人员提供新的可能，他们不仅可以监控分子的结合过程，而且可以了解过程的化学本质。

FT-SPR opens a new door for researchers in the field of life and materials sciences not only to monitor the binding processes , but also to unveil the chemistry behind these processes .

缓凝外加剂缓凝作用的化学本质

Chemical Nature of Retarded Effects of Retarding Admixture

根据现有资料对上述分离物的化学本质进行了探讨。

The chemical constituents of the above-mentioned extracts were discussed based on the published data .

胃肠激素的化学本质是肽类，对消化道运动和分泌起调节作用。

These gut hormones are frequently peptides , and regulate the movements and secretions of the alimentary tract .

从化学本质上来说，青饼更接近于绿茶类产品。

It could be concluded that Qingbing was more similar to green tea than black tea from the chemical nature .

蜘蛛能够产生六种丝纤维和一种粘液物，其化学本质都是蛋白质。

Most spiders can produce up to six silk fibers and a slime content , which all basing on protein .

本文简要叙述了甜味剂理论，主要包括甜味剂的化学本质与呈甜味机理，甜味剂与甜受体的相互作用机理。

The paper briefly summarizes sweet agent theory , mainly consisting chemical essence , taste mechanism and the interaction mechanism between sweet and sweetener receptor .

他贡献卓著破译了人类记忆的化学本质这些都是通过对海参的研究取得的

It was , as you must have guessed , for deciphering the chemistry of memory in humans as revealed by his research on sea slugs

本试验测定了中国对虾亲虾在禁食和静息状态下的耗氧率、二氧化碳排出率和氨氮排泄率，研究了它们的呼吸商、氧氮比、能源的化学本质及其消耗量之比。

The oxygen consumption , CO_2 production and ammonia-N excretion were measured for the parent prawn , Penaeus orientalis under their non-feeding and resting conditions .

本文就食用油脂的氧化劣变的机理从化学本质上进行了探讨。

The paper makes a probe into the mechanism of the oxidation deterioration of edible oils and fats on the basis of the analysis of their chemical properties .

因此，了解棕色素化学本质、合成机理及色素的遗传规律，是棕色棉育种的重要基础。

Therefore , studies on chemical nature , synthesis mechanism and inheritance law of the pigment in brown colored cotton are important basis for brown colored cotton breeding .

忽视胶原酶的化学本质而随意配伍的不规范做法，有悖于酶促反应动力学的基本原理，在临床工作中不应提倡。

This kind of un-standard way which ignore enzyme 's chemical nature and compatibility will violate enzymatic reaction dynamic 's basic theory , shouldn 't be advocated in clinical practice .

此结果提示，因酶的化学本质是蛋白，所以蒸汽处理灭酶效果会更好，这与试验数据相吻合。

As the enzyme is protein essentially , this results suggest that steam would be better to eliminate the enzyme activity , which coincides with the experimental data . 2 .

以细胞为研究对象，开展无机小分子与大分子相互作用的研究，有可能真正理解生命过程中一些问题的化学本质。

As a research object , it is possible to understand the chemical nature of some biological occurrences if the interactions between inorganic molecules and biological macromolecules in cell are studied .

根据以上结果，重点讨论了胆红素自由基对肝细胞损伤的化学本质及其与胆结石形成的关系。

Based on these evidences , the essential chemical aspects of BR free radical damage to rat hepatocyte and the correlationship between BR free radical and formation of pigment gallstone were considered .

通过分析过程的物理-化学本质和机理，利用化学工程学的基本理论来建立一套描述过程特性的数学方程式及边界条件。

Through the analysis of physical-chemical essence and mechanism of the process , we can use fundamental theories of chemical engineering to establish a set of mathematical equations and boundary conditions to depict the process characters .

蛋白质结构与功能关系的研究，不仅可以从分子水平上解释生命现象的化学本质，而且能促进生物学、医学等学科的发展。

The acknowledgement of structure and function of proteins could facilitate to explain the chemical nature of life phenomenon at the molecular level , but also boost the developments of other fields , such as biology , medicine .

由于酶的化学本质是蛋白质，游离酶在参与酶解特定大分子底物的过程中也同时对烟用香精香料产生污染，固定化酶在这方面的优越性可以很好解决这一矛盾。

Since enzyme is a protein in chemical nature , use of free enzyme will introduce a new source of contaminate into the extraction . Herein , immobilized enzyme can solve the problem very well for its superiority over free enzyme .

除了化学反应本质因素外，外加流场的作用影响在聚合物加工过程中也是十分重要的，这使得聚合物熔体反应时的化学流变学是需解决的核心科学问题之一。

Besides the chemical reaction , the effect of applied flow field is more important , which makes chemorheology , one important hotspot of the present researches about reacting processing of polymer , to be the core issue to resolve .

什么是化学键的本质？

What 's the nature of chemical bond ?

颜色的化学与物理学本质

The Physical and Chemical Essences of Color

采用计算机科学中新兴的遗传规划算法思想，结合化学物质的本质特点，运用进化操作来实现化合物的合成设计和筛选。

Using Genetic Programming to solve compound synthetic design and sieve is a feasible method .

谈化学学科的本质特征

The Essential Characteristics of Chemistry Discipline