活化

HP infection activates oncogene and inactivates tumor suppresser gene an d increase overexpression of P21,P53,C-myc and C-erbB-2,which may be involved in development of gastric cancer.

Hp感染与胃癌中P21、P53、C-myc及C-erbB-2的异常表达密切相关，提示Hp感染可使胃粘膜细胞的癌基因活化和抑癌基因突变或失活，促进胃粘膜细胞恶性转化而导致胃癌发生。

This is attributed to the higher surface charge density produced by surface protonation, which is supported by experiments of potentiometric titration and cation exchange capacity.

其中又以活化三小时的蒙脱土表面电荷密度最高，所以有最好的吸附选择性。

Because Fov also existed in the roots ofsymptomless seedlings and the stems of both symptomatic and symptomless seedlings afterinoculation,the induced SOD isozyne seems to be originated from plant,not Fov.

由于在接种但未显症的棉株根中和显症或不显症棉株的茎中均可高频率地分离到Fov，因而初步判断该诱导性SOD酶源于棉花基因组中的某一SOD酶基因被活化。

The process of syneresis can be described by means of apperant first-order reaction and the rate constant increased with increasing the temperature and the initial Crconcentration. The apparent activation energy was about 34.5 kcal/mol.

突发脱水之后的过程可以用一级反应动力学描述，反应速度常数随三价铬的浓度和温度的增高而增大，活化能为34.5kcal／mol。

The material for formation of the granitoids isderived from mixing sources of crust and mantle, with decreasing in crust-derived componentsfrom early to late.5. The tectonic setting for formation of the Mesozoic granitoids in the region isdefined as a post-collisional setting. The occurrence of a small part of rocks with characteristics ofcollisional or anorogenic granitoids provides evidence for the continuous process oftransformation of tectonic regime from collisional through post-collisional to anorogenic.6. Themultiple cycles of mantle-derived magma underplating caused by the multiple stages oflithospheric thinning in the Mesozoic result in the partial melting of middle to lower crust orcrust-mantle syntexis to form magmas. The crystallization of these magmas emplacing afterfractionation is responsible for the formation of the Mesozoic granitoids in this region.

形成花岗岩类的成岩物质来自壳幔混源。5、河南省西部地区中生代花岗岩类成岩构造环境为碰撞后环境，部分岩石具有碰撞期或非造山期花岗岩的某些特征，表明碰撞后阶段既是碰撞造山过程的延续，又是向非造山环境的构造转换时期，因而其岩浆活动在一定程度上仍然继承了碰撞前消减时期和碰撞时期已经活化的岩浆源区性质。6、研究表明，区内中生代多阶段的岩石圈减薄作用引发多旋回的幔源岩浆底侵以及中下地壳的部分熔融或壳幔同熔，由此形成的岩浆经分异演化后侵位可以形成区内的中生代花岗岩类。

Activation energy is an important index reflecting the spontaneous combustion tendentiousness of coal.

活化能是表征煤自燃倾向性的重要指标。

Kinetics of thermal degradation of polybutylene terephthalate was investigated using the method of gravimetric analysis.

用热重分析法探讨聚对苯二甲酸丁二醇酯热降解的动力学，揭示了PBT的热稳定性、热解反应级数和热解活化能。

This technique involved the enclosure of the emulsion in small agar capsules, double fixation using glutaralde- hyde and osmium tetroxide and embedded in resin.

在稳定性研究中，首次将电导法用于静脉乳的凝聚动力学试验取得较好的结果，测得乳剂的凝聚过程为一级动力学过程，并求得凝聚活化能和半凝聚期。

The role of rubber products: rubber of carbon black has a good softening dispersion, increasing the viscosity of rubber so rubberáí, and can enhance anti-cold Coke products, ease of performance, and the other on the thiazole enhancers can play activation, increase with the agent role.

橡胶制品的作用：对炭黑的胶料有很好的软化分散作用，增加胶料的粘性，使胶料柔软光滑，并能提高制品的耐寒防焦缓化性能，另对噻唑促进剂能起活化作用，增加各配合剂的作用。

The effects of the presulfidation methods and the activation conditions on the hydrodesulfurization of thiophene were investigated.

以硫代硫酸铵为硫化剂对MoO3/Al2O3催化剂进行预硫化，考察了制备方法和活化条件对预硫化催化剂噻吩加氢脱硫活性的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。