摘要：The colorimetric method for real-time measurement of temperature field using ICCD as sensor was developed. In order to ensure the accuracy and sensitivity, the relationship between the ratio response of two-color images and radiant property of body, transmission property of filter, spectral response of ICCD is discussed. The analysis is based on computer calculation of the established mathematical model. On the basis of the analysis, optimum wavelengths are obtained for a given sensor system. Experimental work was carried out to check the correctness of the theoretical results. The method is useful for general purpose of study and design of the developed system.

摘要：Phase field models were established to simulate the grain growth of a nanostructured AZ31 magnesium alloy,which contain spherical particles of differing sizes and volume fractions, under realistic spatial and temporal *** effect of the second phase particles on the nanostructure evolution was studied. The simulated results were compared with those of the conventional microstructured *** expression of the local free energy density was improved by adding a second phase particle term. The right input parameters were selected for proper physical meaning. It was shown that the rules that govern the pinning effect of the second phase particles during the grain growth were different for the nanostructure and microstructure. There was a critical particle size value that affected the grain growth within the nanostructure. If the particle size was lower than the critical value, the pinning effect on grain growth increased with decreasing particle size. When the particle size was greater than the critical value, the particles had almost no pinning ***, in the conventional microstructured material,the larger particle size resulted in an enhanced pinning effect during grain growth for particle sizes smaller than 1 μm. The effect was reversed when the particle size was larger than the critical value. For the nanostructure, the critical value was200 nm when the particle content was 10 v.%, and the critical value decreased when the content increased. When the particle size was 30 nm, the particle pinning effect on the grain growth increased for increasing particle content.

摘要：化工行业的烟囱一般高达数十米,在设计时必须考虑风压载荷.结构表面的风压载荷在空间上连续变化分布,这一特点使得模拟载荷分布较困难,Patran中的field模块具备强大的描述变量在时空上分布的功能,使得困难迎刃而解.以某沿海企业烟囱为研究对象,采用field对不同工况下的烟囱及附属钢结构加载风压载荷并进行受力分析,同时对极限风载工况下的受力情况校核.实例表明field模块在处理复杂载荷加载方面简单易用且可靠.

摘要：当你第一次看见Patricia field的时侯,立刻就会被她周身上下那绚烂的“红”所吸引，艳丽的红发，精致的红衣，由内而外透射的如红色般张扬的活力，以及眉目间闪烁着的红彤彤的自信和快乐，令人深深迷恋却又难以效仿，于外，她似乎钟爱着红色；于内，她显露着如红色般连绵不绝的创造力和生命力，更证明了自己红透天下的实力。

摘要：论述了负重轮轮胎温度场有限元分析方法；给出了生热率数学模型；建立了具有三重非线性的负重轮力学有限元分析模型和热学分析模型，利用有限元分析软件进行了温度场的计算分析；研究了负重轮轮胎温度场，分析了温升过程，为负重轮寿命分析提供了理论和数据。

摘要：A materials design tool for developing Pb-free soldering alloys in electronic package was developed based on comprehensive experimental data of phase equilibria and thermodynamic properties data accumulated with the CALPHAD (calculation of phase diagrams) method and contains 10 elements,namely,Ag,Au,Bi,Cu,In,Ni,Sb,Sn,Zn and *** can handle the calculation of phase diagrams in all combinations of these elements and all composition *** addition,based on this tool,the liquidus,solidus,phase fractions and constitutions,equilibrium and non-equilibrium solidification behavior,surface tension and viscosity of liquid,diffusion reactions and microstructural evolution,*** be *** examples of the calculation and application of this tool are *** design tool is expected to be a powerful tool for the development of Pb-free solders,as well as for promoting the understanding of the interfacial phenomena between Cu substrate and Pb-free solders in electronic packaging technology.

摘要：Flexible thin-film organic semiconductor devices have received wide attention due to favorable properties such as light-weight,flexibility,reproducible semiconductor resources,easy tuning of functional properties via molecular tailoring,and low cost large-area *** them,ultraflexible electronics,usually with minimum bending radius of less than 1 mm,are essential for the development of epidermal and bio-implanted electronics,wearable electronics,collapsible and portable electronics,three dimensional(3D) surface compilable electronics,and *** review firstly gives a brief introduction of development from flexible to ultraflexible organic semiconductor electronics,and design of ultraflexible devices,then summarizes the recent advances in ultraflexible thin-film organic semiconductor devices,focusing on organic field effect transistors,organic light-emitting diodes,organic solar cells and organic memory devices.

摘要：设计了3种不同组合电极结构(椭圆-椭圆、圆弧-椭圆和圆弧-圆弧)的多级气体开关,对这3种不同组合的电极结构的电场进行模拟计算,并进行了静态实验。研究发现,椭圆-椭圆型的电极表面电场分布的均匀性比较好,不均匀系数为1.03;圆弧-椭圆型的电极在垂直于电极表面的电场强度变化最小,偏差小于1%;在静态实验中,椭圆-椭圆型的电极耐压能力和稳定性优于圆弧-圆弧型电极和圆弧-椭圆型电极。

摘要：In this paper, the design of a 9.1 GHz Low Noise Amplifier (LNA) of a RADAR receiver that is used in the Navy is presented. For the design of the LNA, we used GaAs field-Effect Transistors (FETs) from Agilent ADS component library. In order to keep the cost of the circuit in low prices and the performance high, we design a two-stage LNA.

摘要：This paper addresses the challenges of System-on-Chip designs using High-Level Synthesis (HLS). HLS tools convert algorithms designed in C into hardware modules. This approach is a practical choice for developing complex applications. Nevertheless, certain hardware considerations are required when writing C applications for HLS tools. Hence, in order to demonstrate the fundamental hardware design concepts, a case studyis presented. Fast Fourier Transform (FFT) implementation in ANSI C is examined in order to explore the important design issues such as concurrency, data recurrences and memory accesses that need to be resolved before generating the hardware using HLS tools. There are additional language constraints that need to be addressed including use of pointers, recursion and floating point types.