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Scientific and reasonable guiding track horizontal fixing design , which become a favorable dustproof between itself and slide block.

科学合理的轨卧式结构其自身与块之间行成良好的防尘效果。

The article bases on the traditional graphical method,and applies design principle in the references[1],derives the optimizing design methods which under the condition of meeting the fixed slider stroke and the coefficient of variety of stroke velocity,makes the minimum transmission angle of the eccentric crank slider mechanism to maximum(that is the best transmission angle).

曲柄块机构在工程上应用十分广泛,传动角的大小是衡量机构传力性能好坏的一个重要指标。通常求解最佳传动角的方法是建立数学模型,在计算机上进行数值求解,本文在传统图解法的基础上,运用文献[1]中的设计原理,推导出在满足给定的块行程S和行程速度变化系数K的条件下,使传动

The test results show that, the drag bar pull and efficiency coefficient is increasing with the wheel width and diameter. The draw bar pull increased with the rug height, but the efficiency coefficient reduces when the slip radio is bigger than 20%. The draw bar pull and efficiency coefficient will reduce with the rug distribution incereases when the rug distribution is more than 20%.

结果表明,当增大驱动轮宽度和直径时,其挂钩牵引力和效率系数都呈增大趋势;增大驱动轮的轮刺高度,挂钩牵引力增大;当转率小于20%时,效率系数随着轮刺高度的增大而增大,而当转率大于20%时,效率系数随着轮刺高度的增大而减小;增大驱动轮轮刺密度时,其挂钩牵引力和效率系数随之先增大后减小。

Material and MethodsRA Rabbit Model group: 15 early RA rabbits of the same weight and variety Control group:10 normal rabbits of the same weight and varietyMethods of making RA rabbit model:elect 15 normal rabbits of the same weight and variety, dissolve Ovalbumin in 0.9% sodium chloride solution, to make the solution of 20mg/ml concengtration, blend the same quantity of complete Freund′s Adjuvant equably ,inject the mixed solution into endermic tissue of the rabbit′s scapular section, making the rabbits allergic, inject 1 ml of the mixed solution to one rabbit every time, inject 1 ml of the mixed solution in 5 different places of the rabbit′s scapular section, inject the rabbit one time every week,inject 3 weeks continuously,it turned out to be that the rabbits will be allergic, inject Ovalbumin blent with the 0.9% sodium chloride solution into the knee joint cavity of the rabbits in the fourth week, 5 mg Ovalbumin every knee joint cavity,two knees of every rabbit of the 15 rabbits are both injected,the arthrosis diameter and the exterior temperature of the knees will be added obviously in 24 hours,and they will drop gradually,at the time of the 14th or 21th day, the arthrosis diameter and the exterior temperature of the knees will get to the balance time,the incidence rate of RA is 100%.after the RA model succeeds,it is the early time of RA from the first week to the fourth week,after the fourth week,it is the late time of RA, the cartilage of the femoral condyle and the subchondral bone cortices will be changed unrecoverily.

资料与方法RA模型组:早期RA家兔模型15只,品种及体重接近。对照组:正常家兔10只,品种及体重接近。RA家兔模型制作方法:选取15只成年家兔,体重、品种接近,将卵蛋白溶解于生理盐水,配成浓度为20mg/ml的溶液,与等量完全弗氏佐剂混匀,注入家兔肩胛区皮下致敏,每只家兔每次注射1ml,于肩胛区5个不同区域注射,每周一次,连续注射3周而致敏,第4周向膝关节腔注射卵蛋白生理盐水溶液,每只关节腔注射5mg卵蛋白,15只家兔膝关节全部注射,24h内此关节直径和表面温度大幅度上升,以后缓慢下降,至14~21d达到平台期,发病率达100%。造模成功后第1~4周为早期改变,第4周以后出现不可逆的关节软骨及骨破坏。采用高频超声对RA模型组与对照组的膝关节髌上囊液体厚度、膜及股骨髁软骨厚度及软骨下骨皮质的回声情况进行对比观察。结果RA组模型组膝关节髌上囊积液及膜的厚度明显厚于对照组,其股骨髁软骨的厚度与对照组相比无明显差异,其软骨下骨皮质与对照组相比无明显改变。

The first one is an algorithm with terminal sliding mode equality constraint. The second is a dual-mode control scheme, which enlarge the terminal region. The sliding mode based MPC is implemented while system state is outside of terminal region, and sliding mode variable structure control designed off-line is used once system state arrives in the terminal region.

第一种方法为终端模等式约束非线性模型预测控制方法,首先离线设计切换函数使得动模态渐近稳定,然后在有限预测时域的基础上对切换函数附加一个终端等式约束;第二种方法为双模控制方案,在终端区外采用模型预测控制,使得系统状态在有限时域内到达终端区内;在终端区内部采用离线设计的模变结构控制,使得系统渐近稳定。

A modified exponential approach law for sliding mode control is submitted in this paper. Then it is applied to structure control under seismic excitation.

众所周知,模控制对结构参数的变化具有鲁棒性,模控制中的一个重要问题是趋近律问题,而土木工程结构的振动控制系统在地震或强风作用下也主要表现为趋近运动。

We get both of the strike-slip distribution and the dip-slip distribution on the fault plane.

最终得到了断层面上的走和倾位错分布。

They're skating around fearlessly. Come on.

他们毫无畏惧地去。

Both of the femora cut out when rotated 10°, and one when rotated 15°.

结果:两股骨旋转10°时均移,1个旋转15°发生移。

The company's main products: 1, labor insurance supplies a anti-virus Series: mask, masks and so on. b Protection Series: helmets, masks, glasses and so on. c Anti-static Series: static gloves, underwear, aprons, shoes and so on. d acid series: acid gloves, clothing, pants, aprons, shoes, etc. e anti-skid Oil Series: IMPREGNATION gloves, glue gloves, non-slip gloves, etc. fingerstall. f substantial wholesale all kinds of cotton gloves, Electronics gloves, industrial gloves; cleaning machine cloth, silk cloth, dust-free cloth, such as conventional insurance products. The main production enterprises have "Huiyang City Yongxing gloves."

本公司的主要产品:1,劳保用品a防毒系列:面具,口罩等。b防护系列:头盔,面罩,眼镜等。c防静电系列:静电手套,衣裤,围裙,鞋等。d耐酸碱系列:耐酸碱手套,衣,裤,围裙,鞋等e耐油防系列:浸塑手套,涂胶手套,防手套,指套等。f大量批发各种棉线手套,电子手套,工业胶手套;抹机布,丝印布,无尘布等常规劳保用品。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。