对建筑本土化表达的探索——以南京陵园小筑建筑改造为例

结合南京陵园小筑建筑改造方案的设计,在充分考虑了当地气候特点、环境特征和建筑文脉后,从总平面的规划、建筑单体设计、建筑造型和材料使用等方面,对建筑的本土化表达进行了探索和研究。同时提出一些新的见解,倡导建筑师在设计实践中对我国地域文化与建筑设计的结合进行积极的思考和运用。     

中印贸易互补性实证分析

以比较优势理论和产业内贸易理论为依据,利用近58来的贸易统计数据,计算显示比较优势、Brulhart指标、贸易特化系数（TSC）的测度指数值及其变动趋势．分析结果表明,中印两国具有很强的产业间贸易互补性,但产业内贸易互补性不强,推动中印贸易的主要是产业间贸易,产业内贸易所占比重较少,并预测出中印贸易互补性有增强趋势．     

新农村社区建设的空间布局设计

通过分析我国农村社区空间布局的现状及特点,探讨了新农村社区空间布局的可持续发展对策,并就可持续性空间布局设计的一些具体内容进行了阐述,以期为新农村社区建设提供一些有益的借鉴.     

生产线故障诊断知识引擎系统的集成推理方法

针对大型复杂连续性生产流水线设备所具有的多部件结构、多层次故障症状、故障的不确定性等特点及对其状态监测和故障诊断的实时性要求,在设计了基于综合动、静隶属度运算的模糊识别法和基于神经网络的并行运算方法的基础上,研制了生产线故障诊断知识引擎系统的集成推理机制,突破了只有单一推理方法的诊断系统在领域知识和推理能力方面的局限性,提高了智能诊断系统对偶然性和不确定性问题的诊断能力,同时在一定程度上解决了诊断系统对生产流水线所具有的大量的状态参数和控制信号等知识获取的"瓶颈"问题以及由此而来的快速推理难题,使该智能诊断系统具有在线实时诊断能力.     

普通电火花成型机床加工小孔的改进方法

针对普通电火花成型机床在进行较深的小孔加工时存在的问题,对电火花成型机床进行部分改造,增加一个压力循环系统,使工具电极中喷出高压工作液,使之更适应小孔加工的条件.以DMKT132精密数控电火花成型机床的改造为实例,说明机床改造前后加工小孔的变化,结果表明,用该方法加工小孔,加工效率平均提高一倍以上,提高了加工质量,具有广泛的推广价值.     

20°圆锥低速35°迎角下的压力分布特性

对半顶角为10°的圆锥-圆柱组合体在3.0×1.6m低速低湍流度风洞进行了圆锥表面压力分布测量.基于圆锥底面直径的雷诺数1.0×10(6),迎角35°,包含了以9°为等间隔的所有滚转角.实验结果包括9个截面周向压力,当地/总侧向力及力矩由表面压力分布积分得到.结果表明,侧向力系数随滚转角的变化曲线为近似方波,其周期和相位沿锥体轴向均相同;压力分布表明对称涡流场为绝对不稳定,不对称涡流场为双稳态;流动为非锥型流动.实验结果检验了前人的理论结果,并与现有的实验结果做了比较,结果吻合.     

Carburization of ferrochromium metals in chromium ore fines containing coal during voluminal reduction by microwave heating

Chromium ore fines containing coal (COFCC) can be rapidly heated by microwave to conduct the voluminal reduction, which lays a foundation of getting sponge ferrochromium powders with a lower content of C. Under the conditions of COFCC with n(O):n(C) (molar ratio) as 1.00:0.84 and n(SiO₂):n(CaO) as 1.00:0.39, the samples were heated by 10 kW microwave power to reach the given temperatures and held for different times respectively. The results show that the low-C-Cr ferrochromium metal phase in the reduced materials forms before the high-C-Cr ferrochromium metal phase does. With increasing temperature the C content of ferrochromium metals is in a positive correlation with the content of Cr. The C content of ferrochromium metal in reduced materials is 0–10.07% with an average value of 4.68%. With the increase of holding time the Cr content in ferrochromium metals is in a negative correlation with the content of C, while the content of Fe changes in the contrary way. In the microwave field the kinetic conditions of carburization are closely related with the temperature of microwave heating, holding time and carbon fitting ratio. Foundation item: Project(50474083) supported by the National Natural Science Foundation of China; Project supported by the Baoshan Iron & Steel Co. Ltd. of China     

Design of small-area multi-bit antifuse-type 1 kbit OTP memory

A multi-bit antifuse-type one-time programmable (OTP) memory is designed, which has a smaller area and a shorter programming time compared with the conventional single-bit antifuse-type OTP memory. While the conventional antifuse-type OTP memory can store a bit per cell, a proposed OTP memory can store two consecutive bits per cell through a data compression technique. The 1 kbit OTP memory designed with Magnachip 0.18 μm CMOS (complementary metal-oxide semiconductor) process is 34% smaller than the conventional single-bit antifuse-type OTP memory since the sizes of cell array and row decoder are reduced. And the programming time of the proposed OTP memory is nearly 50% smaller than that of the conventional counterpart since two consecutive bytes can be compressed and programmed into eight OTP cells at once. The layout area is 214 μm × 327 μm, and the read current is simulated to be 30.4 μA. Foundation item: Project supported by the 2nd Stage of Brain Korea; Project supported by the Korea Research Foundation     

CGA技术的改进与研究

在移动通信的对端绑定更新过程中,对端节点(CN)的任意性及其节点密钥部署的难题使得IPSecESP技术完全无法适用.CGA技术是这种问题的典型解决方案,但CGA技术使用了高计算强度的校验、签名等运算,其性能及实用性很容易受到DoS攻击、哄骗攻击等的影响.分析了通用网络环境和攻击者的特点,改进了CGA技术的会话性能,论证了改进方案的合理性和有效性.最后通过仿真实验,证明改进方法明显提高了CGA协议抗攻击的性能.     

基于Pro／E的VERICUT虚拟机床模型开发

虚拟机床建模是VERICUT中数控加工仿真的基础,以一个带升降台的3轴立式铣床为例,介绍VERICUT中虚拟机床模型在Pro／E系统中的创建、装配及输出过程,借以探讨二者的结合应用．该方法具有良好的通用性,可作为其它机床建模的参考．