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AR model in linear filter theory is adopted to simulate pulsant wind. Combined with some typical cable-membrane structures, research on self-vibration of the structure has been conducted. Based on the previous work, the influence caused by the vertical wind component on the membrane roofs has been analyzed in time domain. It includes the vibration laws of the structure under separate horizontal wind component, separate vertical wind component and the collective horizontal wind component and vertical wind component. Significant conclusions have been drawn from the analysis.

然后本文采用线性滤波器法中的AR模型对风速场进行了模拟;之后又结合典型的张拉索膜结构研究了膜结构的自振特性;在此基础上,本文研究了索膜结构在竖向脉动风影响下的风振响应特性,其中分别研究了张拉索膜结构在单独水平风,单独竖向风以及水平风和竖向风共同作用下的振动规律,得出了有关重要结论。

Three classes, forty-eight in total, of pyrazole compounds, imidazolo[1,2-b] pyrazoles, dipyrazolylmethanones and pyrazolyloxadiazoles, have been synthesized, and they have been fully characterized by modern spectroscopic methods, two of which were further confirmed by X-ray diffraction. Most of these compounds have been evaluated for the inhibitions of Gram-positive bacterium represented by Staphylococcus aureus and Gram-negative bacterium represented by Klebsiella pneumoniae.

论文合成了咪唑并[1,2-b]吡唑类、二吡唑基甲酮类和吡唑连噁二唑类共三类48个化合物,使用了现代结构测试手段对所合成的化合物进行了结构表征,其中两个化合物经过了X-Ray射线衍射分析,并对其中大部分化合物进行了以金黄色葡萄球菌和肺炎克雷白杆菌为代表的革兰氏阳性菌和革兰氏阴性菌的初步抑菌活性测试。

In order to modify the dense of the hydrophilic groups of the superabsorbents, as well as reutilize wast polymer , a rigid and hydrophobic polystyrene chain have been introduced into the superabsorbent, and novel superabsorbent nanocomposites based on partially neutralized acrylic acid, waste polystyrene foam and sodium type montmorillonite powder have been synthesized. The properties of the superabsorbents, effects of various main factors on water absorbency have been systemically investigated. The structure, surface morphology and thermal stability of the composites were characterized by FTIR, XRD, SEM and thermo gravimetric analysis.

为了改善高吸水性树脂亲水基团的密度,同时以废塑料资源化再利用为目的,将刚性、疏水的聚苯乙烯引入到高吸水性树脂中,成功制备了废旧聚苯乙烯泡沫/丙烯酸/蒙脱土高吸水性树脂,并对所制备的高吸水性树脂的各项性能、吸水倍率的诸影响因素进行了系统讨论研究,同时也通过FTIR、XRD、SEM、热重分析等物理手段来表征复合高吸水性树脂的结构、表面形貌、热力学稳定性等性能。

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪(Catalyst Molding Process Analyzer, CMPA)和催化剂力学性质测试仪(Catalyst Mechanical Properties Tester, CMPT),以Fe-Cr系高温变换催化剂片剂为研究对象,对成型过程和受压破碎过程提供了全过程动态研究的新手段;本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素(包含预密致比例、煅烧时间、煅烧温度和石墨含量等)对催化剂成型体强度的影响,并对成型条件进行了优化;根据实验结果,关联确定了固体催化剂成型过程中的密度-压力关系式,并对方程中诸因子的物理意义进行了描述;提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法;研究讨论了成型压力对催化剂成型体强度性质的影响,结果表明:对于催化剂成型体的强度和比表面性质,成型压力存在着一个最佳值,过高的成型压力会导致比表面积和侧压强度的降低;不适当的成型压力的维持时间会破坏&压力回弹&作用,造成催化剂成型体的机械强度明显降低。

In view of limitation and one sidedness among former grain research , the macro agriculture base and hierarchy structure of regional grain security have been systematically studied. Furthermore, the grain demand and assuring quantity of grain security of Western China has been probed, and five important ways of ensuring grain production security has been highlighted in this paper.

针对以往粮食研究中&就粮说粮&的片面性和局限性,在系统研究粮食问题的宏观农业基础和区域粮食安全层次结构的基础上,分别探讨了中国西部地区粮食需求趋势和区域粮食安全保障结构,重点分析了解决西部地区粮食安全的五项生产保障途径。

Sutras and Buddhist classics preserved in the Potala Palace, Norbulingka and Sakya Monastery have been well protected. Ancient documents and books, such as the Catalogue of the Classics in the Potala Palace, Snowland Library, The Origins of Religions in Tewu, etc., have been rescued, edited and published. Since 1990, the Chinese Tripitaka: Tengyur and the General Catalogue of the Tibetan Tripitaka in the Tibetan and Chinese Languages have been published.

布达拉宫、罗布林卡、萨迦寺等所藏经卷和佛教典籍得到很好的保护,《布达拉宫典籍目录》、《雪域文库》和《德吴宗教源流》等文献典籍得到及时抢救、整理和出版。1990年以后,藏文《中华大藏经·丹珠尔》、《藏汉对照西藏大藏经总目录》等陆续整理出版。

The emulsification properties and solubleness of glycerol monostearate and glycerol mono-octanoate have been researched. The approximate HLB values of glycerol monostearate and glycerol mono-octanoate have been determined. And the thermal stability of glycerol monostearate, glycerol mono-octanoate and their intermediates have been researched through thermogravimetry.

本文对单硬脂酸甘油酯和单辛酸甘油酯的溶解性能和乳化性能进行了研究,测定了其HLB数的大约数值,并通过热重法考察了单硬脂酸甘油酯和单辛酸甘油酯以及其中间产物的热稳定性。

Up to 3,652,200 person-times were examined, and a total of 157,200 patients had been found. Among these patients, total 6014 cases had been diagnosed as advanced schistosomiasis, accounting for 3.82%. In the treatment of schistosomiasis, many remedy, such as the sodium antimony subgallate, Xuefang-846, combination of Furapromidum and Dipterex bolt, Preziquantel, etc, had been adopted.

对于早、中期血吸虫病人,先后采用锑273、血防-846、呋喃丙胺合并敌百虫肛栓和吡喹酮等药物进行了治疗;采取中西医结合、对症治疗和病原学治疗相结合、对符合切脾指征者脾切除等方法对晚期血吸虫病人进行治疗。1950-1983年间,累计治疗近40万人次,累计脾切除5673例,晚血病人切脾率达94.06%。

Based on the research results of single layer films, three superlattice films of NbN/TiN, TaN/TiN and TaWN/TiN have been designed and synthesized and their microstructure has been investigated. The action of lattice mismatch and elastic modulus difference on the hardness anomalous increase of nano-multilayer films has been compared from the experimental research.

在单层膜的研究基础上,设计并制备了NbN/TiN、TaN/TiN和TaWN/TiN等三种超晶格薄膜,研究了它们的微结构特征,并通过实验研究对比了晶格错配度和弹性模量差异对纳米多层膜硬度异常升高的作用。

Because of trips is a kind of experience, Bring me a lot. In the last 4 year time, I have been fenghuang, Hunan province 1 time, also been to Shanghai and Suzhou with my roommates, and I also have been west like, Hangzhou myself. In all of my trips, Hong Kong gives me most strong impression. Its thriftily streets, broaden roads, modern girls, dingdang bus(most interesting things ,a kind of bus without whistle )and discount marketplaces, all of these thing make me feel interesting.

在大学的四年里,我跟我姐姐去湖南凤凰玩过,跟我同宿舍的去上海苏州玩过,自己去杭州西湖看过景,最远的还到过香港,我觉得香港给我留下的印象最深,繁华的街道,高低不等的路面,穿着时髦的小姐,古老的叮铛车(因为车走起来叮叮当当的,所以叫这个名字),到处打折的商场,这些都让我觉得新鲜,也让我看到了不同文化背景下人们不同的生活观念。

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相关中文对照歌词
The Life That Could Have Been
I Know I've Been Changed
Never Been A Greater Love
I've Been Waiting For You
You've Been A Friend To Me
Have You Ever Been Lonely (Have You Ever Been Blue)
Have You Ever Been Lonely (Have You Ever Been Blue)
Have You Ever Been Lonely (Have You Ever Been Blue)
Should've Been Could've Been
I've Been Up, I've Been Down
推荐网络例句

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。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。