一次性婴儿尿布与非织造布发展问题的探讨

本文研究了一次性婴儿尿布的发展进程、工作原理,指出了从改进吸湿结构出发,应该开拓探讨的几个问题。     

手机电池回收利用研究进展

本文介绍了手机电池的发展、应用情况和废手机电池对环境的危害,综合描述了废手机电池回收利用的研究开发现状,国内外回收处理废旧手机电池的方法,分析了发展的趋势和存在的问题。简要综合叙述了目前应用的各种回收工艺,并对废旧手机电池回收利用的前景进行了初步探讨。     

Cost-effective disposable thiourea film modified copper electrode for capacitive immunosensor

Cost-effective disposable electrodes were fabricated from copper clad laminate, usually used for printed circuit board (PCB) in electronic industries, by using dry film photoresist. Electro-oxidation (anodisation) was employed to obtain a good formation of thiourea film on the electrode surface. The affinity binding pair of carcinoembryonic antigen (CEA) and anti-carcinoembryonic antigen (anti-CEA) was used as a model system. Anti-CEA was immobilized on thiourea film via covalent coupling. This modified electrode was incorporated with a capacitive system for CEA analysis. This capacitive immunosensor provided a linear range between 0.01 and 10 ng ml⁻¹ with a detection limit of 10 pg ml⁻¹. When applied to analyze CEA in serum samples, the results agreed well with the enzyme linked fluorescent assay (ELFA) technique (P > 0.05). The proposed strategy for the preparation of disposable modified copper electrode is very cost effective and simple. Moreover, it provides good reproducibility. This technique can easily be applied to immobilize other biological sensing elements for biosensors development.     

Transient memristive device based on lead-free double perovskite for secured data storage and artificial learning systems

Modern day electronic devices are fascinated by various indispensable activities for various schemes. Transient devices are one of those systems useful for disposable electronics. However, choice of materials is an integral part, because the material should be compatible with the required device application and can show transient nature at the same time. Most importantly, the material for the aforesaid application should not possess any environmental hazard. In this work, we have for the first time integrated non-toxic double perovskite material in transient memristive application. The Cs₂AgBiBr₆ integrated in between Au and indium doped tin oxide (ITO) electrode serves as the functional material and the proposed device exhibited dual-functional switching characteristics. The device could retain the reproducible and stable resistive memory feature along with high-density storage capacity. The threshold switching behavior is useful to realize selector device in cross-bar resistive memory architecture. Thus, the same device can be utilized simultaneously for both the application. In addition, the device could also demonstrate some basic synaptic functions. Finally, the modulation of device resistance could be ascribed to the establishment/dissolution of conductive path related to Br^? vacancy and Ag filaments. Interestingly, the device could also display transient behavior as the Cs₂AgBiBr₆ film and the device undergo rapid decomposition within 60 s in H₂O.     

Toxicity screening of candidate materials for the fabrication of a bubble oxygenator: A preliminary report

The hazards encountered in the clinical use of medical devices and implants have been referred in this paper to emphasise the need for and relevance of carrying out appropriate toxicological investigations before such items are manufactured and marketed. Different formulations of polyvinyl chloride, low density polyethylene, high density polyethylene and polyester fabric were subjected to various tests to determine their biocompatibility/safety for their eventual use as components in a bubble oxygenator. The test methods together with the results obtained are described and discussed.     

用即弃婴儿尿布的开发

分析了用即弃型婴儿尿布的吸收机理和市场前景 ,初步探讨了使用纺粘法开发婴儿尿裤的设计方法 ,并指出在生产中应注意的工艺参数及要求。     

On the design of new ductile knee bracing

An approximate method is presented that can be used to determine the nonlinear behavior of a new structural bracing system called the ‘Chevron Knee Bracing’ (CKB). In this framing system, an especial form of diagonal brace connected to a knee element instead of a beam-column joint is investigated. The diagonal element provides lateral stiffness during a moderate earthquake. However, the knee element is designed to have three plastic joints or two yielded specimens in flexural and shear yielding mode, respectively, for dissipation of the energy caused by a strong earthquake. This article demonstrates the transformation of a complex problem into a new, practical set of design charts and graphs. To severe purpose, first, an optimal shape and angle for the diagonal-knee element is considered based on the studying of the elastic and inelastic behavior of the system. Then, by use of the main graphs and charts designed accordingly, the dynamic response of this model is properly investigated. Finally, the correctness of the results is ascertained, using example problems. The comparison of the results between the technique presented in this paper and the exact finite element methods and/or experimental results shows very good agreement and very suitable conformity.     

利用废塑制餐盒复合花岗石等饰面保护膜

花岗石坚硬致密、强度高、磨光面色彩亮丽,所以大量用作饰面材料。但花岗石中也经常含有少量铁的硫化物和氧化物,这些含铁矿物在水、水蒸气、氧的作用下会演变为Ｆｅ（ＯＨ）３,使花岗石饰面染上污斑。利用白色垃圾———一次性塑制餐具研制的防腐剂处理花岗石和易受腐蚀的各种材料的饰面后,均可形成一层保护膜。此种保护膜无色透明、无毒无味,既防腐蚀又提高了饰面光洁度。     

我国农村居民人均纯收入与消费支出的灰色关联分析

应用灰色关联分析方法研究了2004年～2009年间我国农村居民消费支出与人均纯收入之间的关系。根据灰色分析显示,在2004年～2009年间,与人均纯收入变化曲线的几何形状相似程度较高的前三项消费支出项目依次为衣着类支出、居住类支出和银行中介服务消费支出,此外,交通和通信类支出位居第四,食品类支出位列第六,保险服务消费支出排在医疗保健类支出之前,位居第七。     

生态健康旅游袜产品的创意设计与开发

介绍生态健康旅游袜产品的创意设计思路及工艺设计,包括产品定位设计、功能设计、品质设计、外观设计、包装设计。阐述生态健康旅游袜产品的生产工艺流程,包括纤维生产工艺、短流程快速纺纱生产工艺、生态健康旅游袜生产工艺。详细分析生态健康旅游袜产品主体纤维材料的选择,并以生态健康旅途袜产品开发为例,介绍袜品研发过程,并对袜品进行性能测试。总结生态健康旅游袜的产品定位原则、创意设计思想及研发关键技术,对功能性袜品的设计开发具有借鉴意义。