强度控制

Laws of cyclic hardening and softening, transformation laws of strain amplitude, plastic amplitude, laws of cyclic creep caused by mean stress under stress control, Masing behavior of material, etc, are examined in detail.

通过不同环境温度下的简单拉伸试验和应力控制下的低周疲劳试验，找出了环境温度对应力控制下的疲劳行为和疲劳强度的影响。

The bigger top tension will cause the wellhead to be over-pulled and increase the probability of wellhead collapse. As the mean drifting of drilling vessel or platform increases, the wellhead displacement and bending moment nearly linear enlarges. The greater current velocity may result in wellhead instability because of its limited bearing moment capacity. Therefore the drifting control is very important to subsea wellhead stability. The wellhead stability may be improved by taking measures such as enhancing the conductor bending strength, controlling scour depth on seabed, getting geological data sampling of shallow formations.

算例分析表明，水下井口的横向偏移及弯矩随张力比和海流流速的增加而大幅增大，顶张力过大会引起井口稳定性变差；随着钻井船或平台漂移量的增加，井口的横向偏移和弯矩近似线性增加，控制好钻井船或平台的漂移非常重要；由于井口承受弯矩的能力有限，较大海流流速情况下可能造成井口失稳；提高导管抗弯强度、控制泥线处管柱冲刷、获取浅部地层的取样数据等措施可以增强井口稳定性。

The OA kneepad with PIC16F630 microcontroller core can control the output signal frequency, pulse width, intensity and work time by controlling keyboardbuttons.

1 以PIC16F630单片机为系统控制核心的OA护膝，可通过键盘按钮控制输出信号的频率、脉冲宽度、强度和工作时间。

A microcomputer is used to communicate with the controller of electron probe to control the spectrometers and the sample stages as well as the scalers. Data of X-ray intensity are acquisited when the sample stages are scanning in a certain step and time period. X-ray images were formed and shown in colors or in 3 dimensions, and have no distortion at low magnification. Hidden zonate phenomena of a picrite were found.

摘 要：用微型计算机与电子探针控制机通讯，实现对各道波谱仪和样品台的实时控制，以及对各道定标器的数据采集；在选定的样品区域上设定采样步长和时间，边移动样品台边采集各道X射线强度；用伪彩色、三维视图和内插放大等方式显示图像，解决了低倍X射线像失真问题，观察到了辉石的隐环带等现象。

Analysis of the characteristics of soft rock roadway, combined with practical application, designed to spray a new anchor shell supporting structure and proposed mechanism of interaction with the rock that anchors the shell surrounding rock and shotcrete support system as an entity, anchor-body system and the deep rock formation deep rock control system, housing system and the formation of shallow shallow rock rock control system, through the bolt will be deep and shallow rock together, sprayed on the rock-body system to play the role of three-dimensional constraints, bolting technology, including high water, quick-setting grouting material between two groups, roof anchoring resin full-length high-strength bolts and small-diameter prestressed anchor to strengthen support for the conservation and help the two longer anchoring resin bolting.

分析软岩巷道的特点，结合实际应用，设计了锚壳喷新型支护结构，并提出了与围岩相互作用机理，认为围岩与锚壳喷支护体系作为统一体，锚体系统与深部围岩形成深部围岩控制系统，壳体系统与浅部围岩形成浅部围岩控制系统，通过锚杆将深、浅部围岩共同作用，喷体系统对围岩起到三维约束作用，锚杆支护技术，包括高水速凝材料注浆加固两帮、顶板采用树脂全长锚固高强度锚杆和小孔径预应力锚索加强支护及两帮树脂加长锚固锚杆支护。

However the three mentioned analysis methods has been so far assured only available to high pathogenic pathotype identification, which was probably associated with the high expression of gene related to high pathogenicity, on the other hand, pathogenicity differentiation of Cercospora zeae-maydis was probably controlled by some complex factors regulated by by polygenes.

相比较而言，只有强致病类型菌株利用三种方法进行鉴定有一定程度的相关性，这可能与强致病类型致病相关因子在蛋白质和DNA水平上的表达强度高有关，另一方面可能是有复合因子控制灰斑病菌的致病性分化，这恰好反映出该病菌的抗性遗传是由多基因控制的特点。

Some important control parameters,including the concentration of samples,the pumping rate,the ultrasonic intensity and dispersion time,and the selection of the deflocculant,are optimized for the establishment of a standard operation process for soft clay.

采用马尔文公司生产的Mastersizer Micro(MAF5000)激光衍射粒度仪测定江苏连云港地区软土的粒度分布，对样品质量浓度、泵速、超声波强度与时间、分散剂选取等控制参数进行了优化设计，确定合适的控制参数，便于对相同类型的软土测量确定标准操作规程。

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

This article studied differences in postpartum fatigue and birth outcomes between women who pushed immediately and those who delayed pushing during the second stage of labor. Data were collected from primiparous women in their 38th to 42nd gestational week who did not receive epidural analgesia during labor and were free of complications during pregnancy. Using a quasi-experimental design, 72 participants selected by convenient sampling were assigned based on individual participant's preference to either an experimental or control group. For the experimental group, pushing was delayed until the point after full cervical dilation at which the mother felt a strong physical pushing reflex, the fetal head had both descended to at least the +1 level in the pelvis and turned to the occiput anterior position, and uterine contractions were at least 30 mmHg. For the control group, the physician instructed mothers to begin pushing after full cervical dilation at the point when the fetal head was in the occiput anterior position and uterine contractions were at least 30 mmHg.

本研究目的在探讨初产妇女第二产程立即用力与延迟用力对产后疲惫及生产结果的影响，收案对象为怀孕38-42周初产妇女、待产期间未施打硬脊膜外麻醉，且怀孕期间无任何合并症，於待产期间向其解释研究目的及收案方法后予以收案，采类实验设计法，以方便取样并依个案之意愿分派於实验组及控制组，实验组於子宫颈完全扩张后等到强烈想用力的感觉、胎头位到达坐骨棘连线下1公分以下、胎头位置转到枕前位、子宫收缩规律强度至少30mmHg才教导向下用力；控制组於子宫颈完全扩张后即教导向下用力，共收案72位。

The accomplished software-control system of cellular growth system based on direct current-stimulation has characteristics as below:(1)individualise treatment according to user's requirements such as stimulation-current , stimulation-time and stimulation-channel;(2) operate easily and conveniently based on friendly;(3) could enable cursor switch conveniently and quickly among input frames, and disable corresponding choices to avoid mistaken operation;(4)could analyze the gained data and display the waveform of analytical data;(5)provide set up program of the software.

已完成的细胞直流电刺激实验系统软件控制系统具有以下特点：(1)可根据用户需求选择刺激电流的强度、刺激时间和刺激的通道，同时还可对采样频率进行选择；(2)系统软件操作界面友好、美观；(3)参数设置时控制按钮的光标可以方便、快速地在各输入框间切换，并使不能操作的选项失效，减少误操作；(4)对采集到的特征数据可进行数据分析，并对分析数据进行波形显示；(5)提供了该软件的安装程序。

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。