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Main tasks, field s,techniques and key projects of cast iron pipe standardization during the 11th Five Years were deeply discussed.

综观铸铁专业领域内的国内、国际现状和发展趋势,重点介绍了铸铁专业标准化工作基本情况、作用和主要成绩;对目前标准化工作存在的主要问题及原因进行分析;指出在国内、国际环境下对标准化工作提出的要求;深入探讨&十一五&期间铸铁专业标准化工作的重点任务、领域、技术及重点项目。

It also requires less load capability of high-voltage pulse power supply, and allows using avalanche transistor or MOS transistor to replace expensive krytron and unstable spark gap. That has simplified the whole system and improved reliability, stability and flexibility.

降低了对脉冲高压驱动电源负载能力的要求,允许用雪崩或MOS代替极其昂贵的冷阴极和稳定性差的高压火花隙,提高了可靠性和稳定性,简化了系统,增加了灵活性。

The aortic wall thickness and lumenal diameter had no significant change but obvious stiffness and calcification were found.

术后6个月切取带瓣道见:带瓣道无扩张、血栓形成、瓣膜粘连、增厚、狭窄及关闭不全等改变,带瓣壁厚度和腔大小与术前无明显变化,但壁明显僵硬,有局限性钙化现象。

Researching believed that lysosome has not only digestive function but also traffic action.

由α和β两种微蛋白聚合而成,其结构与功能的差异可能取决于所含微蛋白的结构的不同。

In order to resolve the problems of the die pin fracture and improve product seaming during the manufacture of aluminum alloy micro multi void tubes,on the LLJ300 continuous extrusion machine,the die with strengthen rib in flank of mandrels,preforming die and uniformity metal flowing hole are designed.

为了解决汽车平行流多孔连续挤压过程中模具孔针断裂和产品焊合质量不好的问题,采用LLJ300铝连续挤压机,研制成功了具有凸模侧面加强筋、预成型模和具有分流通道的汽车空调平行流多孔连续模具和腔体,有效解决了平行流多孔连续挤压过程中存在的技术难题,并已应用于工业化生产。

I plant under the control of research and development centers (with the Zhejiang University Institute of Chemical Equipment), metal-testing laboratories (with Jinhua pot seized by the joint), has a range from development to development of the equipment, tooling touch with, Can produce carbon steel, alloy steel, stainless steel 90 ° 180 ° seamless bend, bend, collection tubes, according to the needs of customers and production Gezhongfeibiao products.

我厂下设件研究开发中心(与浙江大学化工设备研究所联合)、多功能金属检测实验室、拥有一系列从研制到开发的设备、工装摸具,能生产碳钢、合金钢、不锈钢90°180°无缝弯头、弯、集合、并可根据顾客需要生产各种非标产品。

This thesis deals with oil-water flow rate measurement using a venturi and develops a differential pressure-based two-phase flow rate measurement model, which does a terrific job with the use of a water fraction device. Meanwhile, Coriolis flow rate meter is also studied in the oil-water two-phase flow measurement and a SVM-based single-phase flow rate prediction method is proposed, realizing the prediction of single-phase flow rates. To overcome the disadvantages of both venturi and Coriolis flow meters, a double parameter measurement method is put forward, which combines the two meters and solves the problem of oil-water flow rate measurement. Last but not least, on the basis of the study of two-phase flow, a device for the separation of gas and liquid is designed and realizes the flow rate measurement of three-phase flow as oil, gas and water.

本文对文丘里测量油水两相流流量进行了研究,建立了基于差压法的两相流流量测量模型,如果与含水率计相结合,可以较好的实现油水两相流的流量测量;同时研究了Coriolis流量计在油水两相流流量测量中的应用,提出了基于SVM的油水两相流分相流量预测方法,实现了油水分相质量流量的预测;针对文丘里和Coriolis测量油水两相流存在的问题,提出了文丘里和Coriolis流量计相结合的双参数测量方法,并实现了油水两相流的流量测量;最后,在对油水两相流研究的基础上,设计完成了一种气液分离装置,实现了油气水三相流的流量测量。

In prophase, it localized on the microtubule organizing-center. In metaphase, it co-localized with α-tublin completely on spindle. In anaphase, it co-localized with α-tublin in aster and mid-zone. In telophase, it co-localized with α-tublin in cytoplasmic bridge connecting the two daughter cells.

在分裂前期,hSMP-1蛋白位于微组织中心区域;在分裂中期,hSMP-1蛋白与组成纺锤体的微呈完全共定位;在分裂后期,hSMP-1蛋白与星体和纺锤体中区的微呈共定位关系;在分裂末期,hSMP-1蛋白则与两个子细胞之间的胞质桥完全共定位。

Compare with tunable filter detection technique, the wavelength measurement technique using tunable source is analyzed theoretically. We design a kind of all-fiber sensing interrogation system, by using long-period fiber grating as edge filter to interrogate the sensing signal of the FBG sensor. The wavelength resolution of the sensing measurement is 0.05nm.A novel FBG Bourdon tube sensor has been constructed, utilizing the pressure mechanic amplify function of Bourdon tube. The measured pressure sensitivity is two orders of magnitude higher than a simple monomode fiber with an in-fiber grating. Especially the pressure sensitivity of the sensor can be determined by changing the parameters of the cantilever beam. Adopting polymer package technique, we coat fiber Bragg grating by using polymer with different mechanic properties.

利用波登对于压力的机械放大作用,研制了一种新颖的光纤光栅波登压力传感器,将FBG的压力灵敏度提高了两个数量级,特别是这一传感器的压力灵敏度的大小可以通过改变悬臂梁自身的参数灵活控制;采用聚合物封装技术,将FBG封装于具有不同力学特性的有机聚合物基底中,利用基底的带动作用,将FBG对压力的灵敏度分别提高了20倍和31.7倍,由于我们采用了特殊的工艺,封装后的FBG不出现任何光栅啁啾;在成功封装的基础上对封装光栅的蠕变效应、FBG与封装材料之间的防滑处理等进行了实验研究;设计了外加圆柱形铝的聚合物封装光纤光栅,将FBG的压力灵敏度提高了1430倍,可用于对微小压力变化的精确测量。

First, we adopt MEMS technology to fabricate micro venturis with different widths of 150 and 200 um respectively and utilize FLUENT software to analyze the flow fields. Air was set as the working fluid and the air mass flow rate of inlet is changed to obtain the pressure drop between inlet and outlet. When a flow passes through the throat, the backflow results in the symmetric separations occur and grow with the increase of mass flow rate.

在微文氏的研究部分,首先利用微机电制程技术制造出两种不同尺寸的微文氏,宽度分别为150及200微米,开口角度各为45°,总长则为10 mm,再以空气作为工作流体,利用不同质量流率来量测微文氏进出口的压力差并配合FLUENT软体分析观察其流场分布的情况。

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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。