Mechanical and thermal properties of poly(ethylene terephthalate) fibers crosslinked with disulfonyl azides

A novel method for the crosslinking of poly(ethylene terephthalate) fibers is described using 1,6‐hexanedisulfonyl azide, 1,3‐benzenedisulfonyl azide, and 2,6‐naphthalenedisulfonyl azide. The azides are diffused into poly(ethylene terephthalate) fibers (Dacron) from perchloroethylene solution, and the fibers are heat treated to bring about decomposition of the sulfonyl azide and give rise to crosslinking. A study is made of the mechanical and thermal properties of the resultant fibers, which are changed considerably in comparison to the untreated fiber. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1517–1527, 2002     

企业信息化递进发展模型及其水平指数

对企业信息化的发展阶段进行划分 ,提出了企业信息化递进发展模式 建立了企业信息化水平指数及测算方法 ,给出了实际应用案例     

紫杉醇母核全合成的初步思想实验

紫杉醇的全合成困难，许多工作还只能停留在实验室的模型化合物上。作者以思想实验方法提出了：先以Ｄ－Ａ反应形成Ａ环和Ｃ环，然后用两步形成Ｂ环，最后形成Ｄ环，以此完成紫杉醇母核的全合成。     

激光器实用价值的评判

提出用于评价激光器产品实用价值的Q因子,它由激光器的亮度、脉冲宽度及价格确定。Q值大的激光器,开发及发展的潜力大。     

河道堤防老化指标体系评定之浅见

水利工程老化、失修是当前工程不能发挥正常效益的主要原因,建立工程老化指标评价体系是解决该问题的基础工作之一。老化是工程建成后在自然因素和人为活动长期连续的作用下,工程效益衰减、构件功能降低及材料性能逐渐变坏的自然现象。河道堤防以土石为主要材料,应以工程的功能为主建立老化指标体系。依据对工程效益和安全的影响程度,水利工程的综合老化度可分为四级。工程损坏后,在防洪工程运用年度内未能修复称为水利工程失修。解决老化问题主要依靠折旧或大修费,而解决失修问题主要依靠运行管理和维修养护费。     

C－BN衬底上金刚石的异质外延生长研究

用热灯丝ＣＶＤ方法在Ｃ－ＢＮ单晶衬底上制备出金刚石膜，并且在Ｃ－ＢＮ（１００）面上观察到金刚石的异质外延。     

论企业经营者年薪制的建立

社会主义市场经济条件下企业经营者年薪制的建立，使经营者的收入与经营成果紧密相联，责权利一致，是现代企业制度的要求，体现了“按劳分配，多劳多得”的社会主义分配原则。企业在实行经营者年薪制时应明确基薪标准和效益收入，完善各项管理考核制度，建立起良好的激励机制。     

Characterization of CuInS2 thin films for solar cells prepared by spray pyrolysis

We have made a study of the chemical composition, the electrical, the optical and the structural properties of polycrystalline CuInS₂ thin films prepared by spray pyrolysis to be used for thin film solar cells. These films were deposited starting from aqueous solutions with different chemical compositions ([Cu]/[In] and [S]/[Cu] ratios) and at different substrate temperatures. In all cases, the material is p-type with grains preferentially oriented in the (112) direction of the sphalerite structure. The electro-optical properties show a very strong dependence on the [Cu]/[In] ratio in the solution. Films with copper excess have smaller resistivity and better crystallinity than those which are stoichiometric or have indium excess. The results obtained in this work show the possibility of having CuInS₂ thin films with a wide range of resistivity, a fact that could be important for making solar cells based on this material.     

热电厂锅炉运行技术指标的微机管理

本文从锅炉运行技术指标台帐微机管理的实际出发，提出了热量计算中主蒸汽流量修正系数Ｃ和给水焓值Ｚ两项参数回归的计算公式，提高了热量计算数值精度。     

搪瓷釉料新颖添加剂铝溶胶

搪瓷釉料新颖添加剂铝溶胶任岳荣（浙江省明矾石综合利用研究所３２５０２８）ＮｅｗＡｄｄｉｔｉｖｅＡｌｕｍｉｎａＳｏｌｆｏｒＧｌａｚｅｏｆＥｎａｍｅｌ￥ＲｅｎＹｕｅｒｏｎｇ（ＺｈｅｊｉａｎｇＩｎｓｔｉｔｕｔｅｏｆＣｏｍｐｒｅｈｅｎｓｉｖｅＵｔｉｌｉｚａｔ...