化

Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.

中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料（如硼化钛、氮化硼、碳化硼和磷化硼等）通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能，有些还具有奇异的光、电、磁、热学性能和催化活性，是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。

As our experiments were concerned, the after growth of InGaP, GaAs was grown at a lower temperature than that for InGaP. This made the P atoms on the InGaP surface hard to desorb and greatly reduce the thickness of InGaAsP intermixing layer.

在我们的实验中，成长完磷化铟镓后，以较低的温度成长砷化镓，这将使磷化铟镓表面的磷原子较不易脱附，因此可显著的减少磷砷化铟镓四元混合层的厚度。

The results showed that a combined application of manure and chemical NPK and long-term fallowing increased the contents of soil organic matter, total N, and mineralized N, as well as the N mineralization rate significantly, compared with the control.

结果表明：氮磷钾化肥和有机肥配施及长期撂荒处理显著提高了土壤有机质和全氮含量以及土壤氮素矿化量和矿化率；氮磷钾化肥处理虽然提高了土壤无机氮含量，但对土壤有机质、全氮、土壤氮素矿化量和矿化率的影响相对较小。

The experimentation was making-know: the expand- ing of straw make for it denaturalization, and it can improve the assimilating rate of usefulness substance in the straw, the thick fibre is marked; The grain of straw is favorable for it is used sufficiently, but it have to use the grain material to felt straw; When it is comminuted to 16 mesh, moisture 35%~38%, straw 14%, the Expa...

研究表明，秸秆的膨化有助于物料的变性，能提高秸秆中的有用物质特别是粗纤维的吸收率；秸秆的颗粒化，有利于秸秆的充分利用，但是必须以谷物料原料作为粘结材料；秸秆的细化程度为16目、水分含量为35％-38％、秸秆干重含量为14％时，膨化效率较高；膨化后的颗粒饲料，有较好的抗压强度，有利于贮藏运输以及商品经营。

Simultaneously, the activity and coding gene expression of ribulose 1, 5-bisphosphate carboxylase, phosphoenolpyruvate carboxylase, and glycollic oxidase all decrease in two rice accessions under low potassium supply while significant decrease in non-allelopathic rice "Lemont".

水稻光合作用相关酶的分析结果表明，低钾条件下核酮糖－1，5-二磷酸羧化酶、磷酸烯醇式丙酮酸羧化酶和乙醇酸氧化酶的活性及其基因表达强度均降低，但化感水稻&PI312777&的下降幅度显著小于非化感水稻&Lemont&。

From the time's sequence and abstract speciality on the calligraphic manipulation, we can see, line vigour, line thickness, line rhythm are immitting to a picture making the formative line fluid and philosophic, thereby making traditional chinese painting having liquidity and philosophy of the line shape directly, and pulling the character of chinese painting having liquidity, philosophy, soul, imago on the whole aesthetic factor.

可以讲，书法用笔的时序性、抽象性，以及厚度美、力度美和韵律美等因素对绘画的不断注入，直接影响到中国画以线造型的流动性和哲理性，从而使得中国画具有心灵化、哲理化、意象化和意境化等独特品质。

Proteomics opensup a new way in researching Fuzheng Huayu Decoction from an integrative level. Westudied the change of plasma proteome in the progress of cirrhosis in rat modelinduced by CCl_4, and tried to find how the multi-way function mechanism works intreating liver fibrosis.

以CCl_4大鼠肝纤维化模型作为研究对象，探讨肝纤维化过程中血浆蛋白质组表达改变，揭示扶正化瘀方对肝纤维化多途径作用机制及其疗效评价。

In catalytic cracking, the enlarged space in which hot oil is contacted and cracked with the catalyst; in isomerization, the vessel containing catalyst in which the hydrocarbon is isomerized; in alkylation plants, the vessel containing emulsified acid in which most of the alkylation occurs.

在催化裂化中是热油与催化剂接触并进行裂化的扩大空间；在异构化中含有催化剂的容器是烃类进行异构化的场所，在烷基化装置中是发生大部分烷基化反应的含有乳化酸的容器。

They are redesigning the seal form of the bearing seat of granulation wheel and adding swing water ring out of the bearing seat,then lock question of the granulation wheel was solved;Enlarging the cooling area of the granulation wheel 's crust to reduce the its distortion;choosing wearable pump to reduce the malfunction.

重新设计粒化轮轴承的密封型式，并在轴承座外增加甩水环，解决了粒化轮卡死的问题；扩大了粒化轮外壳的冷却面积，减少了粒化轮外壳的变形；改用耐磨泵减小了泵的故障。

This parameter canaccurately describe the degree of concentration of vibratory energy of the systemmodal shape in quantity. Using this parameter, the effects of mistuning on thelocalization of system modal shapes for various orders are studied. The reasons of themodal localization phenomenon are analyzed by the perturbation method.

利用所提出的模态局部化参数，研究了失谐对叶盘系统各阶模态局部化程度的影响规律，并利用摄动法对失谐所导致的模态局部化现象进行了分析；同时还发现，失谐叶盘系统的某些中间阶模态的局部化参数值在弱耦合区域的特定位置会产生奇异的突变现象，而这种突变现象是用摄动法难以解释的，并且可能会对失谐叶盘系统的振动稳定性产生重要影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。