查询词典 routine modification

In previous work of helicid's structure modification show that 4 substituted groups of helicid are some ordinary acyclic and substituted aniline group, and it had no heptad heterocyclic substituted group.

在前期的豆腐果苷结构修饰工作中，豆腐果苷4位取代基多为一些简单的脂肪族、取代苯胺基等，尚无七元杂环作为取代基的此类化合物。

The effects of different factors on the laser-induced graft polymerization on the PET surface were analyzed, and the mechanisms were discussed. The factors were: 1 Monomers with smaller molecules resulted in better modification than polymeric monomers. Acrylamide monomer was chosen as hydrophilic modifier finally; 2 Higher concentration of the monomer solution favored the graft reaction; 3 With the increasing laser fluence, the surface hydrophilicity of PET films increased at first, then decreased. More laser pulses led to a more hydrophilic surface; 4 Benzophenone as a photosensitizer hindered the graft polymerization; 5 The homopolymer retardant of ammonium iron sulfate hexahydrate in a proper concentration retarded the formation of homopolymers and promotes the graft copolymerization; 6 The solvent of monomer solution also affected the graft reaction. Different solvents functioned in different ways. Ethanol can promote the graft reaction because of the activity of hydrogen in its structure; 7 pH value of the monomer solution affects the polymerization rate, and a lower pH value was favorable to the graft reaction.

这些影响因素的作用分别为：1小分子单体的表面改性效果好，确定以丙烯酰胺为亲水性改性单体；2较高的单体溶液浓度有利于接枝反应；3激光能量密度增大，薄膜表面亲水性先显著增强，后又减弱；激光脉冲次数越多，改性后表面亲水性越强；4光敏剂BP对PET表面接枝聚合反应有阻碍作用；5适当浓度的均聚物抑制剂六水合硫酸铁铵能减少单体均聚物的生成，促进接枝聚合；6单体溶液的溶剂也影响接枝聚合的反应进程，不同溶剂的影响作用原理不同，含较活泼氢的乙醇能促进接枝反应；7溶液pH值影响单体聚合速率，pH值较低有利于接枝反应。

Mining and integration of histone modification data can be beneficial to novel biological discoveries.

组蛋白修饰数据的挖掘和整合能够有益于新颖的生物学发现。

The changes of epigenetics such as DNA methylation and histone modification can regulate the expression of genes and play an important role in the development of tumors.

表遗传学改变，如DNA甲基化和组蛋白修饰改变可以调节基因的表达，在肿瘤的发生和发展中可能起关键作用。

Based on freeze thaw cycle indirect tensile test, a further study of moisture susceptibility for some familiar graded HMA mixtures is carried out through modification of immersion conditions, and a new method of ...

本文以劈裂试验为基础，通过对浸水条件的改进，进一步深入地研究了几种常见沥青混合料的水稳定性，提出了以真空循环饱水条件下的沸煮劈裂试验的残留稳定度来评价沥青混合料的水稳定性。

K. H. Roscoe and his fellows of Cambridge University established the first elastoplastic model of soils which is based on classical plastic theory in 1963. However, due to the complexity of soils, the models that based on the classical metal constitutive theory or its modification accounting on the nature of soils have still much limitation when used to express the soil mechanical behavior. For example, the Duncan-Chang's model based on the generalized Hooke's law can not express the dilatancy of the soils. The uniqueness assumption of the direction of the incremental plastic strain in the classical plastic constitutive theory is not in agreement with some soil experiments.

但由于土的复杂性，目前以传统的本构理论为基础考虑土的一些特性而建立的模型在反映土体的力学特性上还存在很大的局限性，如建立于广义虎克定律基础上的Duncan—Chang模型不能反映土的剪胀性，传统的塑性本构理论中认为塑性应变增量方向具有唯一性的假设与一些土体的试验结果不符合。

The modification includes two parts:furnace sorbent injection combined with vortex combustion and duct humification by venturi wet dust collector.

脱硫系统包括结合四角旋涡燃烧技术的炉内喷钙和尾部利用文丘里喷嘴和麻石水膜除尘器对脱硫剂加温活化两部分。

The results showed that hydrochloric acid was suitable for the modification of sepiolite on the whole.

利用三种强酸对海泡石进行改性，研究了酸浓度、反应温度、反应时间对海泡石性能的影响。

This system can perform the hydrograph simulation and experience modification like a forecasting specialist with high reliability.

可靠性高的特戌，已用于长江三峡河段水文预报。采用自然语言对话操作的水文模拟专家系统也可以移置于其它模型中。

Surface modification,especially,to introduce hydrophilic groups onto the surface of the membrane is an effective way.

超滤膜改性，尤其是在膜表面引入亲水性基团是解决问题的关键。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。