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A large range of IRZ and intense fluctuating velocity area around the boundary of IRZ is measured and thought to be important to keep the excellent ignition and combustion characters of the new kind swirl burner. Together with temperature trace method, different structure and operation parameter of the burner are studied in this paper about their effects on turbulent and mixing characters of swirling jet. The structure variation includes different blade angle, use of central gear shape baffle, variable outer length and angle of lean primary air outlet, use of wedge outlet of lean primary air.

采用上述两种测量方法并结合热质比拟温度示踪的方法，本文对径向浓淡旋流煤粉燃烧器喷口结构和气流流动参数的变化对旋流流场的流动、混合、湍流脉动特性的影响进行了深入研究，研究了旋流叶片倾角大小、中心齿型扩锥、淡一次风扩口外伸长度和扩角的变化、淡一次风楔形扩口、直流二次风扩口角度的变化对出口旋转射流流动特性的影响，研究了一次风率和旋流二次风率运行参数变化的影响规律。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

There might be significant infilling of atural gaas in Quaternary in this area.

桥口地区黄河Ⅱ号断层、桥东断层、李屯断层是桥口构造运移的主要通道，这些断层的分期封闭和活动形成了桥口构造与岩性圈闭油气藏。

Moreover, other peripheral in communication with the ICH 38 may include, in various embodiments of the invention, integrated drive electronics or small computer system interfaces hard drive, USB ports, a keyboard, a mouse, parallel port, serial port, poppy disk drive, digital output support e.g., digital video interface (DVI, or the like.

此外，与ICH38通信的其他外围在本发明的各实施例中可以包括集成驱动器电子电路或小型计算机系统接口硬盘、USB端口、键盘、鼠标、并行端口、串行端口、软盘驱动器、数字输出支持例如，数字视频接口

6Connect your PCs serial port to the board with a serial/RS232 cable.

通过一根串口电缆/RS232，将你计算机的串口与实验板的串口相连。

Pansteel Blast Furnace used simply electric taphole drill for a long time,which cannot apply to higher smelting intensity and the new clay gun.

攀钢高炉炉前开铁口设备一直使用简易的电动开铁口机，已不适应高炉高强度冶炼和铁口新型炮泥的要求。

But this feature only works if you've installed on your iPad certain program s that can edit these documents, such as Apple's optional $10 word-processor, spreadsheet and presentation program s.

和iPhone和iPod Touch一样，iPad有着人们熟悉的苹果连接端口，而且有一条数据线可以把这个端口与个人电脑或Mac苹果电脑上的USB端口相连。

The first port contacts the server on port 21, but instead of then issuing aPORT command and allowing the server to connect back to its data port, the client will issue the PASV command. The result of

第一个端口连接服务器的21端口，和主动FTP模式中提交PORT命令并允许服务器来回连他的数据端口不同，客户端会提交PASV命令。

The first port contacts the server on port 21, but instead of then issuing aport command and allowing the server to connect back to its data port, the client will issue the pasv command. the result of

第一个端口连接服务器的21端口，与主动ftp模式中提交port命令并允许服务器来回连它的数据端口不同，客户端会提交pasv命令。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。