查询词典 walled

In order to investigate buckling mode, buckling load and failure mode of structure, shear experiments were conducted for stiffened thin-walled composite plate. Finite element method was also used to analyze the buckling behavior of that composite structure. Analysis results reveal buckling mode and buckling loading of finite element analysis are accordable with experimental results.

通过对复合材料薄壁加筋板结构进行剪切载荷下的屈曲试验研究，得到结构的屈曲模态、屈曲失稳载荷以及破坏形式，并通过有限元方法对结构的屈曲进行数值分析，分析得到的复合材料薄壁加筋板结构的屈曲模态和试验结果一致，屈曲载荷与试验结果吻合较好。

In this paper, a Si-doped armchaired single-walled carbon nanotube (7, 7) and a perfect SWCNT (7, 7) are investigated using the classical molecular dynamics simulations method. The inter-atomic short-range interaction is represented by empirical Tersoff bond order potential.

用分子动力学方法对扶手椅（7，7）单壁碳纳米管掺杂下的结构和力学性能进行了计算机模拟研究，在分子动力学模拟中，采用Tersoff 短程相互作用势描述原子间的相互作用。

The mechanical autofrettage of thick-walled cylinders is a sort of practical and valuable technique used to enhan...

厚壁圆筒机械自紧技术是一项有实用价值的工艺技术，它可提高厚壁圆筒的弹性强度和疲劳寿命。

A method of defining the autofrettage of a thick-walled cylindrical tube is given from the viewpoint of shakedown.

利用此模型对内压作用下的厚壁圆筒进行了安定分析，并从安定性的角度提出了确定圆筒自紧度的方法。

Finally, after analysis of measuring the residual stress in autofrettage thick-walled tubes, the corresponding formulae and the formulae of measuring residual stress using Sachs method and X-ray method have been presented.

最后还对机械自紧厚壁圆筒残余应力测试技术进行了分析，给出了相应的公式和Sachs内膛削法X射线残余应力测定的计算公式。

The theoretical analysis methods on the first—order and second—order mechanical autofrettage technique of thick—walled cylinders, with reflecting the material characteristics, are studied systematically in this thesis.

本文首次提出和研究的厚壁圆筒二次机械自紧技术，可扩大机械自紧技术在不同口径身管上的应用，降低冲头的推力，充分挖掘现有设备的潜力。

This paper makes the optimum autofrettage analysis of thick-walled cylinder of the material with different yield strength in tension and compression base on the Mohr's yield criterion.

本文运用莫尔屈服准则对承受内压的拉压屈服强度不同材料的厚壁圆筒进行了自增强分析，得到了依赖于材料拉压比的厚壁圆筒的最佳弹塑性界面半径、最佳自增强内压。

Results The main imaging of adult polycystic kidney disease signs: abdominal plain film (45 cases) showed renal shadow was lobulated increase; cystic wall calcification (14 cases); polycystic kidney disease and renal milk of calcium (8 cases); pelvis angiography (61 cases), the performance of the renal pelvis, renal calices separated, distorted, elongated; retroperitoneal inflatable angiography (6 cases): Performance increases of renal kidney shadow Shadow and the relationship between the neighboring organs, its boundaries clear and identified; CT scan (30 cases): the performance of the majority of the size of the renal low-density areas, ranging from thin-walled circular; B-mode ultrasonography (47 cases) showed a circular echo-free renal multiple classes of liquid dark area .

结果 成人多囊肾的主要影像学征象：腹部平片(45 例)显示肾影呈分叶状增大；囊壁钙化(14例)；多囊肾合并肾钙乳(8例)；肾盂造影(61例)，表现为肾盂、肾盏相互分离、变形、拉长；腹膜后充气造影(6例)：表现为肾影增大肾影与邻近器官之间的关系，其界限清晰可辨；CT扫描(30例)：表现为肾内多数大小不等的薄壁圆形低密度区；B型超声(47例)表现为肾内多个类圆形无回声的液性暗区。结论影像学检查有助于提高多囊肾的诊断的准确性。

Multiple-walled carbon Nanotubes were used as carrier to load cerous sulfate catalyst for catalytic synthesis of n-butyl propionate Single factor and orthogonal experiment methods were applied to investigate the effects of the molar ratio of butyl alcohol to propionic acid, cerous sulfate mass fraction and reaction time on the conversion of propionic acid and the optimal technical conditions were determined as:ratio of butyl alchhol and propionic acid 1.5:1, cerous sulfate mass fraction 15% and reaction time 70 min.

以多壁碳纳米管作载体担载硫酸铈催化合成丙酸丁酯。分别采用单因素和正交实验方法考察了醇酸摩尔比、硫酸铈质量分率和反应时间等主要因素对丙酸丁酯得率的影响，并确定了最佳工艺条件为：醇酸摩尔比1.5：1、硫酸铈质量分率15%和反应时间70 min。

Compared with the unloaded cerous sulfate, the multiple- walled carbon nanotube loaded cerous sulfate possessed some obvious advantages of higher catalytic activity, less use level and higher yield of n-butyl propionate.

与未担载硫酸铈相比，碳纳米管担载硫酸铈具有催化活性高、催化剂用量少、重复使用率好和丙酸丁酯得率高等显著优点。

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。