使分解

The results showed that the decomposition of 4-nitroimidazole began with the split of the C—NO2 bond in the temperature range of 185—210℃. The strongly oxidative product NO2 destroyed the instable annulus of 4-nitroimidazole instantly, all the other C＝N, C＝C, C—H and N—H bonds of the five membered ring were broken simultaneously, and the detected gas products of 4-nitroimidazole decomposition were NO2, CO2 and CO.

结果表明，4-硝基咪唑的催化热分解起始于其分子中C-NO2化学键的断裂，温度范围是185~210℃。C-NO2键的强氧化性的裂解产物NO2瞬间作用于4-硝基咪唑分子中不稳定的五员环，使化学键C=N、C=C、C-H和N-H同时被打破。4-硝基咪唑的气体分解产物包括NO2、CO2和CO。

The results indicated that the copper complexes have the best catalytic effect, and the high temperature of decomposition is dropped 129.01℃at most, the second is nickel complexes, and the catalytic effect is the smallest for the plumbum complexes.

有的催化剂的加入改变了AP的热分解过程，使AP的低温和高温分解峰合并成了一个峰，如7#、13#含铜配合物和8#含镍配合物，对AP的催化效果比较有效。

Plastic should lower 3 steps, because plastic is a step to add meltresin material to cyclinder , Higher stick of resin material ,higher screwback pressure. Screw speed differs depending on decomposing temperatureof resin material ,Higher screw speed ,Higher trim force of resin,higher cyclinder temperature. Some resin material may decomposes so it setscrew speed in mid-speed such as 45-75%, In plastic step setting screwback pressure is very important, Higher screw back pressure ,higherquality of product screw back pressure make resin structure order, Moldingproduct is beautiful and volume stable. But ,it maybe flow if screw

再复杂的熔胶旋转过程最多不会超过三段，因为熔胶本身就是存在于把胶熔进料筒的过程，如果原料粘度大，熔胶压力则大，但速度则应取决于原料的分解温度，熔胶速度越快，原料中的剪切力则会越大，料管温度则越高，局部原料产生分解的可能性则会越大，故一般熔胶会采用中速为宜，如45%-75%，熔胶同时会碰到一个比较重要的环节，那就是背压的使用，产品精度要求越大，背压的使用则更大，背压可使原料分子间结构更紧密，成型出的产品则尺寸更稳定，外观越好。

It will expose the design problem of maintainability of civil airplane to the early stage of design. This paper discusses the composing of the virtual maintenance environment, builds non-immersion virtual maintenance environment of undercarriage, and establishes a part library management system. The characteristic of maintainability models and maintainability analysis based on virtual technique is researched to give the maintainability frame model of civil airplane virtual maintainability analysis. All levels of maintenance time model and maintenance man-hour model are established. Analog-Huffman code is proposed to optimize space partition method in traditional collision detection arithmetic."Maintenance therblig"is brought into the broken down of maintenance tasks, and the new maintenance tasks broken down method is proposed. The demands of human measure, position, and equipment layout in human engineering are discussed, and the verification methods of human measure, position and equipment layout in virtual maintenance are given. Basic principle and verification procedure of maintainability virtual verification is developed primarily, and the reachablity, the visibility, and posture-comfortability are verified.

本文论述了虚拟维修环境的组成，构建了某型飞机主起落架非沉浸式虚拟维修环境，建立了维修对象的零件库管理系统；研究了基于虚拟技术的维修性模型特点及维修性分析流程，给出了基于虚拟技术的民机维修性分析框架模型，并结合传统维修性模型，建立了各级维修时间模型和维修工时模型；提出类HUFFMAN编码，结合人因工程的要求，优化了传统碰撞检测算法中的空间分割法，使之适用于柔体；在维修性分解中引入"维修动素"，给出了与CATIA、DELMIA等应用软件结合紧密的维修任务分解方法；论述了人因工程中对人体尺寸、姿势、设备布局的要求，给出了虚拟维修中人体尺寸、姿势分析、民机内设备布局的验证方法；初步制订了维修性虚拟验证的基本原则和验证程序，并结合具体实例对可达性、可视性、干涉性以及人体姿态舒适性进行了验证，较清晰、真实地反映了维修人员的维修状态。

In our previous work,we found that CDB underwent remarkable thermal decomposition at 90～120℃,which yields dithiobenzoic acid and related derivatives,it can affect the polymerization rate, molecular weight,and molecular weight distribution of the resulting polymers.

我们组发现一种常用的链转移剂CDB在加热情况下会发生热分解，分解产生的双硫酸会对RAFT过程产生一定的阻聚影响，同时使聚合部分不可控，即产物分子量不可控和分布变宽。

Xinmao digital ultra light energy weight-reducing instrument can produce ultra light energy which is of strong penetrability into muscle for 12.5cm. At the first few minutes the combustion technology of light wave makes epidermis and under-epidermis tissue more fluid, and strengthens the exchange of body fluid activity and changes the strucrure of tissue density , veins and lymph structure ,increase the content of nutrition in the blood rapidly.despel remnant liquid and metabolized substance in the body at the same time.By treating hypodermis,thning hypodermal tissue fat and fat resolving enzyme mediating device, it can promote the softening, shrinking, and resolving the fat in deep so as to burn it.

数码爆脂减肥仪所产生超光能量有深层次穿透力，能深入肌肉12.5cm，光波的燃烧技术在最开始的几分钟使表皮及皮下组织更趋流动性，承受后急速加强体液活动资质及改变组织密度组织结构，对不同动、静脉血管、淋巴结构的连续缩放减压，可迅速提升营养成份在血液中的含量，同时消除体内残留液体及代谢产物，通过治疗真皮及皮下组织变薄，脂肪及脂肪分解酶受体获调解器，可将深部的脂肪加速促进软化、收缩、分解燃烧掉，。

Considering its complex geometric topology, multi states of self-equilibrium stress and modes of inextensional mechanisms, a prestress optimization strategy was proposed to solve the final feasible prestress distribution problem of the structures with multi states of self- equilibrium stress, where the decomposition and assembly method of modal matrix, the theory of structural equilibrium matrix and the singular value decomposition method were utilized.

考虑该结构几何拓扑复杂、多自应力模态与机构位移模态的特点，应用平衡矩阵理论与奇异值分解算法，通过模态矩阵的分解组合方法，给出一种具有一定普遍意义的预应力优化策略，使多自应力模态结构体系的最终可行预应力分布求解得以简便的实现。

The catalysts of the invention is able to catalyse metathetic degradation of nitrile rubbers with a higher activity than the metathesis catalysts available at present and thus makes possible an increase in the reaction rate and the setting of lower molecular weights of the degraded nitrile rubbers at a comparable noble metal content.

本发明的催化剂能够以比目前可获得的复分解催化剂更高的活性来催化丁腈橡胶的复分解降解，由此在可比较的贵金属含量下使之有可能增加反应速率并设定降解的丁腈橡胶的较低分子量。

Fat tissue is hydrolyzed and released fatty acid as well triolein by lipase; on the other hand, high fat diet can't be directly absorbed across the intestinal mucosa.it must be firstly decomposed into one 2-monoglyceride and two free fatty acids by pancreatic lipase ,which is delivered into the lumen of the gut as a constituent of pancreatic juice.

脂肪酶能够使体内的多余脂肪组织分解成三酸甘油酯，另一方面，人体摄入高脂肪食物，并不能直接被小肠粘膜吸收，而是先被小肠内的胰脂肪酶分解成2-单酸甘油酯和两个游离脂肪酸，然后和胰液一起被运输到肠道的内腔被吸收。

The acupuncture makes the storage of fat transform to blood sugar for oneself. If absorb food with high fat, high sugar, and high calories, the excessive calories will convert into fat making against the decompounding of fat.

针灸使储存的脂肪分解转化成血糖供自己利用，如果减肥期间摄于高脂肪、高糖、高热量的食物，过多的热量会转化成脂肪，防碍储存的脂肪分解。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。