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51.
K. Sundar Rao 《Journal of the American Oil Chemists' Society》1991,68(7):518-519
The seeds ofAlyogine hakeifolia, Alyogine huegelii,Gossypium australe, Hibiscus coatesii, Lawrencia viridigrisea andRadyera farragei (Malvaceae) contained 13.5-18.6% oil. Linoleic acid predominated (60.0-68.2%) in the component fatty acids of all the oils,
followed by palmitic (9.9-18.1%) and oleic acids (7.8-15.8%). Cyclopropene fatty acids, malvalic and sterculic, were present
in small concentrations (1.0-4.4%, 0.1-1.5% respectively). Dihydrosterculic acid was present in small quantities (trace-2.1%).
*To whom correspondence should be addressed at Department of Chemistry, P.O. Box 320, University of Papua New Guinea, Papua,
New Guinea. 相似文献
52.
T. N. Goh 《Quality and Reliability Engineering International》2014,30(8):1191-1195
Routine applications of design of experiments (DOE) by non‐mathematicians assume that each response value is static in nature, i.e. with an expected value that is constant for a given set of input factor settings. When this assumption is not valid, it is important to capture the dynamic characteristics of the response for effective process or system characterization, monitoring, and control. With the purpose of recognizing the self‐changing nature of the response owing to factors other than those built into the DOE, thereby gaining a better ability to shape the behavior of the response, this paper describes the reasoning and procedure needed for such ‘parametric responses’, via common techniques of mathematical modeling and optimization. The procedure is intuitive but essential and useful in DOE studies as these become increasingly popular by practitioners in the context of improvement projects such as those related to Six Sigma or stand‐alone performance optimization initiatives. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
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A. Karaali K. Mirouh S. Hamamda P. Guiraldenq 《Materials Science and Engineering: A》2005,390(1-2):255-259
Alloying elements, such as W, Mo, Mn, …, are of a great importance in the preoxidation of dental alloys and, consequently, on the ceramic/metal bond quality. This study deals with the effect of tungsten addition on the microstructural state of Co–Cr dental alloys, before the ceramisation process. These materials were prepared by unidirectional solidification. Their characterization has been carried out, using transmission electron microscopy (TEM) and X-ray diffraction. It shows that the addition of tungsten up to 8 wt.% induces structural transformations, which are believed to be linked to the added amount of tungsten. 相似文献
56.
该文以《周礼》等多部文献中有关宫室的记载为参考,分析考察西周时期“天子六寝”的空间形制与建筑式样,并探讨这种形制与式样形成的因素和其对后代皇室寝宫建筑的影响。 相似文献
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Philippe Nimmegeers Mattia Vallerio Dries Telen Jan Van Impe Filip Logist 《化学,工程师,技术》2019,91(3):349-362
Model‐based optimization techniques play a key role in achieving a sustainable operation of biochemical processes. Models are an approximation of the real process under study, hence, uncertainty is inherently present and for a sustainable process operation this uncertainty should be accounted for. In practice, optimality with respect to different conflicting objectives is required and multi‐objective optimization is a valuable tool. In this article the sigma point approach is applied to account for parametric uncertainty in the frame of interactive multi‐objective bioprocess optimization. 相似文献
59.
Despite the pervasiveness of process improvement (Lean or Six Sigma) programmes, there is a rising concern regarding the sustainability of these programmes. Several studies point out that initial operational efficiency gains as a result of these programmes simply disappear over time. Using process improvement implementation experiences in an aircraft manufacturing and distribution operation, we studied long-term sustainability of process improvement events. We found that process owners of successful improvement events applied experiential learning model (ELM). The ELM is a cycle of – (1) concrete experience, (2) reflective observations, and (3) abstract conceptualizations, and (4) active experimentation. This study finds that when the ELM cycle is repeated many times over an extended period to continuously improve, and documented using A3 reports, that the improvement is sustained. 相似文献
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石任之 《徐州工程学院学报》2011,(1)
在对六朝文学的认识上,杜甫与同时代主流观点不同,对庾信、鲍照、阴铿等诗人作家的成就予以肯定,在诗歌创作上也深受六朝文学影响,同时又变化而不失其正。文章试从杜甫对六朝文学的接受来论证为何明清以来诗评家以变来形容杜诗,以及诗之变的意义的发展。 相似文献