过程

Recent data suggested that Notch receptors and their membrane-bound ligands Delta and Serrate were involved in both patterning and cell fate determination during odontogenesis.

越来越多的证据表明：Notch途径参与了牙齿发育的各个过程，包括牙齿早期发育细胞的增殖、分化过程，决定细胞的定向分化方向，决定成牙本质细胞与成釉细胞的终末分化命运，并且参与牙齿炎症损伤后修复过程，与第三期牙本质的形成有关。

Purified GO had a molecular weight between 145, 000 and 162, 300, as determined by Sephadex G-200 filtration and SDS-PAGE of the enzyme as cross-linked with glutaraldehyde. This result showed that the holoenzyme was a tetramer, and no change occurred in molecular weight of the enzyme during the s〓orage. The active form of GO from brassica leaves showed a constant molecular weight during purification, so did that from O. sativa leaves during greening of etiolated seedlings, maybe acting as a stable tetramer.

用Sephadex G-200胶过滤和戊二醛交联后的SDS-PAGE法测得纯化的菜心叶片GO的分子量在145，000-162，300间，为四聚体；并且在放置过程中其分子量和聚合态均保持不变，为稳定的四聚体；进一步研究表明菜心叶片GO在纯化过程中和水稻叶片GO在黄化苗的转绿过程中，两种GO活性状态的分子量和聚合态也没有发生变化，均呈四聚体。

On this basis, we successfully reappear this heavy rainfall process by using ARPS model. The influences of orographic dynamics on cloud and precipitation are analyzed by using high spatial and temporal model outputs data.

在此基础上利用中尺度模式ARPS模拟，成功再现了此次暴雨过程，并利用模式的输出结果研究了地形动力过程对云和降水过程的影响。

Simulation result shows that this method is simple and convenient, can directly reflect changing of important parameters in the braking process such as velocity, acceleration, braking distance, braking force, loading and adhesion power etc; It can avoid the overelaborate procedure of manual calculation and programming ,offer strong tools for study on the braking performance of car-trailer.

通过建立拖挂式房车制动过程的力学模型，并在MATLAB/SIMUUNK环境下搭建仿真模型，时拖挂式房车制动过程进行动态仿真，结果表明，该方法能简单、直观、便捷地反映拖挂式房车制动过程中的速度、加速厦、制动距离、制动力、载荷、附着力等参数的变化，避免了手工计算或编程的繁琐，为拖挂式房车制动性能的研究提供有力的工具。

Secondly, in this region, during the process of influencing pedological process and sandstorm activity, the natural course is main, the human factor has just aggravated the natural course to a certain extent, the deterioration of this region s pedological process proved this especially in late Holocene.

二 本区自全新世以来，在影响成壤环境和沙尘暴活动的过程中，自然过程是主要的，人为因素只是在一定程度上加剧了这种自然过程，全新世晚期本区气候环境的恶化更是证明了这一点。

They are most abundant in quartz of pegmatitic leucosomes and granitic rocks, and represent the fluid appearing in their cooling stage. The DL(H2O) of such fluid is 0.93～0.96g/cm3 corresponding to P≈0.6GPa which is compatible with condition when the rapid decompression in this region was ended. 3 CO2-H2O two or three phases inclusions. They are the most widespread, and more frequently in clusters and in intragranular tails in quartz. The relative content of CO2+CH4 and H2O is considerably variable. They are also characterized with lower density (0.6～0.8g/cm3) and low pressure about 0.3～0.4GPa, and may be originated by mixture of carbonic liquid from breaking of most inclusions of peak stage and aqueous liquid of magmatic source. After entrapment, the further decrease of temperature to lower than 330℃ made such fluid separated to two or three phases.

主要集中于伟晶质脉体和花岗岩中，是这期岩浆冷凝过程析出的流体相当时就被封闭所成，密度为0.93～0.96g/cm3，相应压力约0.6GPa，这与峰期后迅速减压过程结束时的条件相符。3CO2-H2O两相和多相包体，分布最广，成簇状和拖尾状包体群，碳质和H2O相对含量很不均匀，整体密度相对最低，一般为0.6～0.8g/cm3，相应压力为0.3～0.4GPa，它们可能是大幅度减压过程中第一类包体大量爆裂析出的碳质流体与第二类H2O溶液流体在各处以不同比例混溶所成，它们被封闭后在降温至330℃以下时分裂成两相或三相包体。

Phosphorus and copper resources and techniques advantages are available in Yunnan, providing good conditions to carry out the production of phosphori...

本文在论述磷铜生产原理的基础上，对磷铜生产过程作理论分析，在工业装置上，经过长期试验，采用脱水黄磷为原料，在催化剂下通过感应加热来实现磷铜合成过程，少量逸出磷回收为磷酸，磷铜液粒化为粒状产品，由于合成反应速度快，磷收率高，生产环境好，属清洁化生产工艺，生产过程安全性高。

Therefore, it is very convenient to construct photoactive supramolecular recognition systems, which fulfil the requirements of optical chemical sensors: to complete two affairs simultaneously, a recognition between host and guest, b signal expression related to recognition.

利用超分子体系的特性，可以方便地构造满足光化学传感器要求的具有光学活性的超分子识别体系：在识别分析对象的过程中，必须给出与识别过程相关的光学参数来完成信号表达过程。

The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

Femtosecond time-resolved studies using fluorescence depletion spectroscopy were performed on the vibrational relaxation; orientational relaxation and the intermolecular energy transfer of dye molecules in solutions under different conditions. The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。