He found increased activation in the left side of the prefrontal part of the brain, an area associated with lower anxiety, positive emotion and inhibition of the amygdala, the brain's fear center. 他发现他们大脑额叶前部的左侧激活的情况有所增加,而这一部位与较低的焦虑水平、积极的情绪和大脑恐惧中心扁桃核的抑制相关。
The measurements of rate constants and activation energy of F2+ center decay in the range of room temperature indicate that the activation energy increases by about 0.2 eV and the rate constants decrease appreciably in oxygen doped LiF compared with the undoped crystals. 掺氧LiF与未掺氧者相比,F2~+心衰减反应的激活能大约提高0.2电子伏,而速率常数则显著变小。
Engagement of OX40/ OX40L promotes T cell activation, proliferation and migration, increases the life-span of effector T cells and enhances the germinal center ( GC) formation in a CD28-dependent manner. OX40/OX40L介导的共刺激信号,参与了T细胞的活化、增殖和迁移,维持T细胞的长期生成,以及协同CD28信号促进生发中心的形成。
The results indicate that acid and alkali catalysts can increase the tar cracking reaction speed and reduce the activation energy due to the activated center. 结果表明,酸性和碱性催化剂由于活性中心的存在,加快了反应速度和降低了反应活化能。
In present work, the sepiolite minerals were high-crystallinity selected, impurity removed, acid-activation treated and thermo-activation treated to increase the specific surface area and activation center, so as to satisfy the demand for catalyzer carrier. 本研究对海泡石矿物进行了高结晶度选择、除杂,进行酸活化处理和热活化处理而增加比表面积和活化中心,使其达到适宜作催化剂载体的目的。
The adsorption activation center of oxygen-containing function group existed in activate carbon surface; 活性炭表面存在含氧官能团的吸附活性中心;
According to the measured data, an activation energy of 0.91 eV for the V color center migration is calculated, and it is presented that the V color center migration is realized through electron exchange of interstitial atom in the V color center with neighboring interstitial halogen ion. 根据测量数据,计算出空气中生长NaF晶体中V色心漂移激活能为0.91eV,并提出V色心的漂移是通过其中卤原子与邻近填隙卤离子交换电子来实现的。
The main existence of transition metals in highest oxidation state complex in crystalloid and alkaline medium and reaction activation center has been reviewed with 63 references. 对晶体和碱性介质中过渡金属超常氧化态配离子的主要存在形式和反应活化中心进行了综述,参考文献63篇。
Study on Methane Activation over Na W Mn/ SiO_2 Catalysts I. Structure of the Active Center Na-W-Mn/SiO2催化剂活化甲烷的研究Ⅰ.活性中心的结构
However, Fe3+ is activation center of ethylbenzene dehydrogenation, thus excess reduction will cause deactivation of catalyst. Hence, a certain ratio of Fe3+ to Fe2+ could make catalytic activity excellent. 但Fe3+是乙苯脱氢的活性位,过度还原会导致催化剂失活,所以Fe3+与Fe2+达到一定比例时,反应活性最大。
It is the activation of important elements in the academic center that the cooperative game institution of academic power and administrative power and formal and informal institution to guide tacit knowledge. 学术权力和行政权力的合作博弈机制、引导默会知识的正式和非正式制度是激活学术中心地带从而走向持续创业的重要元素。
Generally, among potentially important types of hydrocarbon activation by d-block elements, C-H activation is initiated by electron-rich metal center via oxidative insertion pathway which is predominant. 一般情况下,在碳氢化合物被d区金属活化的潜在重要类型中,C-H键被富电子金属中心活化,氧化&插入方式是主要的。