Experimental design in soap manufacturing for optimization of fuzzified process capability index

In manufacturing industries, the quality of a product depends on the combined effect of multiple input variables working singly or together and therefore attention has been given on process capability indices to shift from single to multivariate domain. In case of multivariable domain the capability to incorporate uncertainties at the time of decision making becomes necessary. Fuzzy system is introduced to take care of this requirement. In this article the process parameters of soap manufacturing industries have been analyzed. The process capability is determined using Fuzzy Inference System rule editor based on a set of justified if then statements as applicable for the process. The data has been collected in linguistic form to derive its process capability, using a set of justified rules and the effect of each factor has been determined using Design of Experiments (DoE) and analysis of variance technique (ANOVA) for improving the soap quality from perspective of its softness. This article ventures to propose a new methodology by integrating Fuzzy with DoE providing better result followed by DoE and Fuzzy Inference system in isolation.     

The continuity of underperforming ICT projects in the public sector

There is a growing body of research on the successes and failures of information and communications technology (ICT) projects in the public sector. However, this literature has rarely addressed the question of why some projects persist and continue despite functioning poorly in several areas. In this paper, we suggest that the notions of institutional logics and status differences provide useful insights into the structure and trajectory of this type of continuity. We build our arguments through an in-depth qualitative case study of a public information and communications technology (PICT) project in India. From our findings, we develop a process model of PICT project continuity. We explain how the employment of bureaucratic posturing – a manifestation of bureaucratic logic – as a tactic by high status groups could lead to poor performance on several fronts. The paper elaborates on two levels of continuity: policy-level continuity, which in our case was enabled by the logics of decentralization and technocracy, and operational-level continuity, which was achieved when groups with contrasting status-related motivations supported the project.     

工业污水深度处理回用技术研究

通过对石化企业工业污水进行曝气生物滤池、连续微滤、反渗透等深度处理,使出水满足工业化用水的水质要求,从而得以回用。     

PA6/SANMAH/GF复合材料的制备及其性能研究

采用双螺杆挤出机通过熔融共混制备了尼龙6／（苯乙烯／丙烯腈／顺丁烯二酸酐）共聚物／玻璃纤维（PA6／SANMAH／GF）复合材料，测试了材料的拉伸强度、弯曲强度、弯曲弹性模量、缺口冲击强度、热变形温度、吸水率、熔点和熔融焓，并与GF增强PA6（PA6／GF）复合材料和GF增强PA6／（苯乙烯／丙烯腈）共聚物（PA6／SAN／GF）复合材料进行了性能对比。结果表明，在PA6与SANMAH的质量比为100：3—30时，PA6／SANMAH／GF复合材料的拉伸强度与PA6／GF复合材料相当，但高于PA6／SAN／GF复合材料，弯曲强度和弯曲弹性模量高于PA6／GF和PA6／SAN／GF复合材料．缺口冲击强度高于PA6／GF复合材料，但低于PA6／SAN／GF复合材料；在PA6与SANMAH的质量比为100：40时，PA6／SANMAH／GF复合材料的拉伸强度、弯曲强度和缺口冲击强度明显降低；在整个试验范围内，PA6／SANMAH／GF复合材料的热变形温度比PA6／GF和PA6／SAN／GF复合材料低4～7℃；吸水率随着SAN-MAH用量的增加而逐渐减小。     

汽车用塑料注塑新技术的进展

综述了汽车用塑料的注射成型技术的进展，简单介绍了气体辅助注射成型(GAIM)、水辅助注射成型、熔芯注射成型、反应注射／增强反应注射(RIM／RRIM)成型等技术的特点、生产的汽车部件及最新动向。     

二氧化氯分析的研究进展

二氧化氯作为新一代杀菌消毒剂，在水处理中获得越来越广泛的应用。在应用中，二氧化氯会产生分解及歧化反应，产生副产物如Cl2、ClO^-、ClO2^-、ClO3^-，所以需要对残余ClO2及这些副产物进行分析，本文对二氧化氯现有的分析方法进行了讨论。     

离子选择电极法测定陶瓷工业废水的含氟量

本文采用氟离子选择电极法,该法具有测定简便、快速、灵敏、选择性好、可测定浑浊、有色样品等优点,最低检出浓度为0.05mg/L,适用浓度范围宽,在测定含陶瓷工业废水氟量中取得良好效果。     

Potential of microbial growth control in water hydraulic systems by UV‐irradiation and filtration

Water hydraulic systems use water as a pressure medium and, thus, do not pose such adverse environmental impacts as oil hydraulics. Microbial deterioration of the pressure medium and biofouling of the surfaces restrict the applicability of the water‐based technology. The potential of microbial growth control by UV‐irradiation and filtration was studied in a pilot‐scale water hydraulic system. The UV‐irradiation (25 m Ws cm^?2) of the pressure medium reduced the total viable counts of bacteria by 1–2 log₁₀ cfu cm^?3, whereas the total microbial cell numbers and the numbers of surface‐attached microorganisms remained unaffected. Prefiltration (1.2 µm, absolute) of the pressure medium decreased the total microbial cell number in the water phase and retarded the attachment of bacteria. The filtration during the operation (2 µm, absolute) decreased the total numbers of microbial cells and the total viable counts in the pressure medium, and microbial attachment on the surfaces. Microbial attachment was not prevented by filtration. The microbial water quality obtained by pre‐ and on‐line filtration of the pressure medium was sufficient to ensure the long‐term operation of the water hydraulic system assuming that clean work practices are complied with in assembly and during the operation. © 2002 Society of Chemical Industry     

裂缝-溶洞型碳酸盐岩水驱油机理研究现状

裂缝-溶洞型碳酸盐岩的油水两相流动形态复杂,本文针对此类油藏水驱油机理研究做了大量的文献调研,阐述了此类油藏的水驱油机理研究现状,并提出新的试验研究方法和建议,以进一步加深对这类油藏驱油理论的认识。     

Reactive surfactants in heterophase polymerization. XVII. Influence of the surfactant on the mechanical properties and hydration of the films

In the context of a European union‐supported network on “Reactive Surfactants for Heterophase Polymerization,” different polymerizable surfactants (surfmers) have been synthesized and engaged in the emulsion polymerization of styrene, butyl acrylate, and acrylic acid. The thermomechanical properties of films cast from these different latices are reported in this article. The evolution of the mechanical properties with temperature and the effect of water molecules on these properties are studied. We observed that the studied surfactants do not influence the properties of the dry films. However, some differences due to grafting of reactive surfactants appeared when the films were wet. The amount of water uptake is drastically decreased when only reactive surfactants are present in the film. Concerning the mechanical behavior of the wet films, a decrease of the plastic flow stress is observed for all the samples whatever the nature of the surfactant (reactive or conventional). Hence, calorimetric measurements and dynamic mechanical analysis are used to identify the possible mechanisms that induce the change in the mechanical behavior of the latex films. In the case of reactive surfactant grafted to the polymer, the very low value of water uptake is accompanied by a plasticization of the polymer. In contrast, no plasticizing effect is observed in the case of nonreactive surfactant, even if the amount of water is very large. Finally, the tensile behavior of the styrene–butyl acrylate copolymer versus temperature is analyzed in the frame of the quasi point defects (qpd) model. Both rubber elasticity and chain orientation effects are taken into account to describe the behavior laws at large extensions (i.e., ? ≈ 1.2). © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 1686–1700, 2002; DOI 10.1002/app.10548