铰链连续冲裁模设计

通过对零件的工艺分析和模具有关参数的计算，设计了冲孔，落料，预弯连续模，并介绍了部分模具零件的设计思路及加工方法。     

CVD 矩阵与 n-宽度的(p,q)问题

证明了ｄ２ｋ＝δ２ｋ＝ｄ２ｋ≥ｂ２ｋ，其中ｄ２ｋ、δ２ｋ、ｂ２ｋ分别表示Ａ（ＢＭｐ）在ｌＮｇ中的ｋｏｌｍｏｇｒｏｖ、线性、Ｂｅｒｎｓｔｅｉｎ型２ｋ－宽度，ｄ２ｋ表示ＡＴ（ＢｌＮｑ′）在ｌＭｐ′中Ｇｅｌ′ｆａｎｄ型２ｋ－宽度，这里Ａ（ＢＭｐ）＝｛Ａｘ：ｘ∈ＡｌＭｐ，‖ｘ‖ｐ≤１｝，其中Ａ是一个Ｎ×Ｍ的ＣＶＤ矩陈（Ｎ＞Ｍ＝ｒａｎｋＡ，Ｍ是奇数），１ｐ＋１ｐ′＝１，１ｑ＋１ｑ′＝１（１≤ｑ≤ｐ＜＋∞，ｐ≠１）．     

STUDY OF THE HEAT AND HUMIDITY TRANSFER PROCESSES BETWEEN AIR AND WATER IN THE AIR WASHER

The processes of heat and humidity transfer between air and water are what to be studied mainly in the paper, we put forward some main factors which influence the processes of heat and humidity transfer in the air washer. We come to the conclusion that we can change these main factors to achieve different heat and humidity transfer processes and decide processes of heat and humidity transfer of air and water with the initial temperature of spraying water in the air washer. All these results can make things convenient for the air conditioning management.     

LAND SUPPLY AND HOUSING PRICE:THE CASE IN HONG KONG

In this study we examine the relationship between land supply and housing price, percentage of land premium in the total government revenue and housing price, with reference to Hong Kong from 1981 to 1994. To do this we employ the Granger causality method to test the underlying hypothesis whether Hong Kong Government adopt high land-price policy. We use the first difference of data to ensure the stationarity in time series with the help of augmented Dick-Fuller unit root test. The results of the paper suggest no strong evidence to support the view that the land control of the government has caused soaringly rising housing prices. The findings also apparently implicate that the government has the revenue-maximizing behavior which is consistent with efficient allocation of resources.     

纺织品静电场强衰减的数值计算与实验研究

对服从欧姆定律和在高场强下不服从欧姆定律的纺织品利用计算机进行数值计算与模拟并进行实验研究.结果表明无论电流密度与电场强度之间为何关系.不同初始场强的衰减曲线都不会发生交叉(Cross-Over)现象,若电流密度不仅与任意时刻的场强有关而且还与初始电场有关则会发生交叉,计算结果预示在某种特殊电场范围内时可能发生双交叉(Double Cross-Over)现象.数值计算结果与实验结果对比显示两者符合得较好.     

φ800钼合金冷硬球墨复合铸铁轧辊残余应力的测试分析

在确定φ800钼合金冷硬球墨复合铸铁轧辊残余应力的测试方案之后,对轧辊铸态、人工时效、自然时效后不同位置及距表面不同深度等测点进行了大量的测试工作,并对人工时效、自然时效对轧辊残余应力的影响结果进行了分析.     

枸杞组织培养的培养基配方优化试验

通过对枸杞组织培养的培养基部分成分的改换,发现用普通白砂糖代替蔗糖、自来水代替重蒸水、回收琼脂代替实验用试剂级琼脂,并去掉肌醇,对枸杞分化苗的增殖、生根无明显影响,可大幅度降低枸杞组培苗的成本.     

分布式计算机监控系统远程通信的研究

提出了一种分布式计算机监控系统的远程通信结构形式.设计研制了远程通信接口卡.采用远程通信接口卡组成分布式计算机监控系统具有能够充分利用RS-232接口,节省多用户卡和调制解调器或数传机、结构简单、性能可靠等优点.     

桩基动态检测分析

提出的桩基动态检测方法可以诊断混凝土灌注桩的桩身质量.判断桩基混凝土的强度和桩长,根据应力波在传播途中遇到阻抗面时会产生反射波与透射波的原理,诊断桩基缺陷的类型,并用相关分析法确定了单桩允许承载力.     

东荣矿区井壁受力及破坏原因

利用钢弦式传感器,实测东荣矿区冻结压力的大小及变化规律,结果表明冻结压力随时间而增长.在此基础上,分析了井壁破坏的原因,如实际冻结压力偏大,负摩擦力的不利影响等,提出了防止井壁破坏的措施.