The entrance channel of the C-H bond activation step involves the spin cross between the singlet and triplet potential energy profiles. C-H键活化步骤涉及势能面交叉,且自旋交叉与动力学相关。
Study of Human Cell Line Activation Test ( h-CLAT) for Evaluating the Sensitization Potential of Chemicals 人类细胞系激发试验检测化学物致敏性的研究
Sodium nitrite prevent the bar from corrosion by controlling the drop of activation potential caused by sodium chloride. 掺亚硝酸钠可以防止氯化钠引起的起坑电位的降低,抑制钢筋腐蚀。
There was no other changes in the property of channel, include activation potential, inactivation property, channel closing kinetics and its pharmacological property. 通道的其它特性包括激活电压、失活特性、通道关闭动力学特性及药理学特性未见变化。
Ion-exchange polymer metal composite ( IPMC) is known as a material for artificial muscle actuator. The advantages of IPMC in requiring low activation voltage and the induced large bending strain led to its consideration for various potential application, especially in bio-inspired robotics. IPMC(ion-exchangepolymermetalcomposite)是一种人工肌肉材料,由于其较低的驱动电压能产生较大的位移变形,作为一种新型执行器非常适用于仿生机器人的开发。
The apparent or average activation energies for soil water is the energy expended by a molecule in surmounting a potential energy barrier between tWo quasi-equlibrium positions along the line of flow, and it is factor of rate-limiting and can be calculated by Arrhenius equation. 土壤水的表观或平均活化能是耗费在一个水分子越过两个流线准平衡位置势能垒所需能量,此能垒是速率限制因子,可由Arrhenius方程式计算。
Whereas corrosion of steel occurs due to a drop in activation potential caused by sodium chloride and to the effect of anode polarization produced by electro-chemical factors. 而掺氯化钠混凝土中钢筋由于起坑电位降低,容易因电化学极化作用产生腐蚀。
The generation and development of some diseases are related to DAPK's activation, inhibition or overexpression, so it may be a potential target site for diseases therapy. DAPK的激酶活性能被多种因素激活或抑制,DAPK的激活或抑制与一些疾病的发生和发展有着密切的关系,可作为一种潜在的药物作用靶位点。
CONCLUSION: Genistein inhibited activation and proliferation of T cells in vitro in response to polyclonal stimulus, and it may hold potential as a new immunosuppressant. 结论:Gen可明显抑制多克隆刺激剂诱导的T细胞体外活化及增殖,其作用机制可能是抑制早期活化相关蛋白酪氨酸激酶活性。
Conclusion ACh increased the conductance of outwardly rectifying K+ channel in a voltage dependent manner and caused a hyperpolarizing shift of activation potential. 结论ACh增加了OHC电压依赖性外向整流钾通道的电导,使通道的激活电压向超极化方向移位。
Conclusion The fact that TMP acts against the NF-κ B activation and the decrease in BMP-2 expression induced by Ag ⅱ indicates its therapeutic potential for the treatment of atherosclerosis. 结论川芎嗪抑制AgⅡ诱导的NFκB激活与BMP2表达降低,表明它在抗动脉粥样硬化方面意义重大。
Activation energies and pinning potential in Bi based tapes Bi系超导带材的激活能和钉扎势
Furin/ kexin processing proteases catalyze the proteolysis of large protein precursors involved in many biological processes, such as zymogen activation, peptide hormone synthesis, viral protein processing and receptor maturation, making them potential targets for therapeutic agents. 许多重要的生物过程,如酶原激活、肽激素合成、病毒蛋白加工和受体成熟,均须蛋白质前体加工酶的剪切处理。
All transition states, activation energies and potential curves of four possible reaction paths were obtained. It was found that the homolysis of N& NO2 bond in five-membered ring is the initial step. 求得可能的四种不同热解反应通道的过渡态、活化能和位能曲线,发现其热解引发步骤为五元环上侧链N&NO2键的均裂。
Apatite-type solid electrolytes have attracted significant attention in recent years due to their high oxygen ionic conductivity and low activation energy, which offer great potential for use in the intermediate-low temperature SOFCs. 近年来,具有低活化能和高氧离子电导率的磷灰石类氧化物,作为中低温固体氧化物燃料电池中极具应用潜力的新型电解质材料受到了人们的广泛关注。
The experimental results indicate that ozone adsorbed on metal surface can change metal surface from activated corrosion state into passivation state, and make metal corrosion electrode potential turn from activation electrode potential region to passivation electrode potential region, that prevents the dissolution of metal; 研究结果表明:吸附在金属表面的臭氧使金属表面从活化腐蚀状态转变为钝化状态,使金属腐蚀电位由活化电位区跃变到钝化电位区,阻止金属的溶解;
The precondition of good bond intensity between plating layer and substrate, i.e. the condition of realizing potential activation is that the reduction potential of metal ion in the electrolyte is less than activation potential of oxygen layer in the surface of substrate. 保证电镀层与金属基体良好结合的前提,即实现电位活化的条件是电镀液中金属离子的还原电位必须负于基体金属表面氧化层的还原电位。
Generally, the myocardial electricity parameters included action potential ( AP), activation conduction velocity, refractory period and the relationship between action potential duration ( APD) and the stimulated period of cardiac tissue ( period time relation). 心肌电特性参数主要包括动作电位、兴奋传导速度、不应期及心肌细胞受激时间间隔与动作电位持续时间的关系(间隔-时间关系)等。
It was found that the activation energies of these metal complexes are related to the electrostatic potential of the metal ions. 并讨论了N原子反转过程的活化能与中心金属离子的离子势之间的关系。
Activation of Spinal Dorsal and Ventral Roots by Action Potential of Muscles Study on Mechanism of Propagated Sensation along Meridian 骨骼肌肌电激活脊髓背根和腹根神经&循经感传机制研究
The activation energy increases from 0.30 eV to 0.41 eV, with decreasing iodide content, meanwhile, the surface potential becomes more and more positive and the interstitial silver ions formation energy becomes higher and higher. 随着碘含量的下降,离子电导活化能从0.30eV上升到0.41eV,同时表面电位也相对地变得越来越正。相应地它们的填隙银离子生成能也越来越大。
Activation of NF-κ B offers a potential molecule target for the inhibition of complex mechanism of inflammatory and cell apoptosis. NF-κB激活路径中信号系统研究为阻断复杂的炎症和细胞凋亡机制提供潜在的分子靶点。
Because aberrant activation of Wnt/ p-catenin signaling occurs in the fibrotic kidneys, this pathway might be exploited as a potential target for anti-fibrosis therapy. 研究报道,肾脏纤维化时Wnt/β-catenin信号通路异常活化,提示其可能是抗纤维化的一个潜在的治疗靶点。
However, complement activation presents a potential threat to host cells, as inappropriate activation may lead to tissue damage in many diseases. 然而,对机体来说,补体也具有潜在的威胁,其经过不适宜的活化后,可以导致机体多种组织的损伤。
The activation curve was obtained through fitting the depolarized potential and following peak amplitude of tail current, while parameters of time-dependent activation was got through fitting different depolarized duration and according peak amplitude of tail current. 激活曲线可通过拟合去极化脉冲及随之的尾电流峰值而得到。激活的时间依赖性可通过拟合去极化不同时程与相应的尾电流峰值而得到。
The first chapter describes the significance of alkane activation and transition metal organic chemistry. The second chapter provides an overview of the potential energy surface, transition state theory, density functional theory and natural bond orbital theory. 第一章介绍了烷烃活化的意义和过渡金属有机化学,第二章概述了势能面、过渡态理论、密度泛函理论和自然价键轨道理论。
Contrast the EST database of activation spleen organization of mice with unactivation state, we get some genes that maybe play potential roles in the immune system. 本课题组通过对比小鼠活化与非活化状态的脾细胞EST数据库,筛选到一些在可能在免疫系统中具有潜在功能的基因。
It has been indicated that MAPK activation is closely related to carcinogenesis and development and malignancy potential of ovarian cancer. 已有研究证明,MAPK的活化与卵巢癌的发生、发展及恶性潜能的调节密切相关。
The parameters of NEA surface potential barrier after high-low temperature two-step activation were evaluated, respectively, and the change regularity of the surface potential barriers was discovered. 对阴极高、低温激活后的NEA表面势垒参数进行了评估,揭示了高&低温两步激活过程中阴极表面势垒的变化特点。