Results 291 to 300 of about 1,794,891 (330)
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Rate dependent yield and post-yield behavior of engineering polymers
Journal de Physique IV (Proceedings), 2003To characterize the rate dependent fracture behavior of various engineering polymers, instrumented impact tests were performed with bending and tensile type fracture specimens in the testing rate range of 10 -5 m/s up to 8 m/s. Load-time signals were recorded using an instrumented striker and a fixture equipped with a piezoelectric load cell and ...
Z. Major, R. W. Lang
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A Technique to Achieve Maximal Manufacturing Yield in Engineering Design
Engineering Optimization, 2002Techniques to maximize manufacturing yield of an engineering design for mass manufactured products are well established. These techniques may be broadly grouped into geometrical and statistical techniques. The geometrical techniques suffer from the curse of dimensionality and therefore become very expensive when applied to problems with a large number ...
Jayaram, J.S.R. +3 more
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Metabolic engineering of tomato for high-yield production of astaxanthin
Metabolic Engineering, 2013Dietary carotenoids have been shown to be beneficial to health by decreasing the risk of many diseases. Attempts to enhance carotenoids in food crops have been successful although higher plants appear to resist big changes of carotenoid biosynthesis by metabolic engineering.
Jun-Chao, Huang +4 more
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Yield improvement by wafer edge engineering
SPIE Proceedings, 1995Improvements in defect reduction of semiconductor processes and equipment have realized higher wafer sorts yield but have typically limited analysis and inspection of the edge of wafers by several millimeters. Sort yield on production wafers has been observed to be reduced by glass flaking and other undesired structures created on wafer edges which ...
Fred N. Hause +2 more
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Technical note: The yield stress—An engineering reality
Journal of Rheology, 1989A simple experiment using the falling ball technique was used to demonstrate unambiguously that a 2500 wppm aqueous Carbopol 960 solution has a yield stress. A series of photographs taken over a period of several months revealed that a nylon ball with a density of 1.156 g/cm3 showed no measurable movement when placed well within a Carbopol solution ...
James P. Hartnett, Robert Y. Z. Hu
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Recent developments in the engineering of Rubisco activase for enhanced crop yield
Biochemical Society Transactions, 2023Rubisco activase (RCA) catalyzes the release of inhibitory sugar phosphates from ribulose-1,6-biphosphate carboxylase/oxygenase (Rubisco) and can play an important role in biochemical limitations of photosynthesis under dynamic light and elevated temperatures.
Ignacio Sparrow-Muñoz +2 more
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Engineering high yield basmati rice by editing multiple negative regulators of yield
Molecular Biology ReportsYield improvement in Basmati rice is important to meet the growing demand of Basmati and pivotal to world food security. Yield in rice is a complex quantitative trait controlled by many genes and yield-determining factors. Although dominant genes introgression through breeding have been extensively used but it is a laborious and time-consuming process.
Muhammad Abu Bakar, Waqas +5 more
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Metabolic engineering of Geobacillus thermoglucosidasius for high yield ethanol production
Metabolic Engineering, 2009We describe the metabolic engineering of two strains of Geobacillus thermoglucosidasius to divert their fermentative carbon flux from a mixed acid pathway, to one in which ethanol becomes the major product. This involved elimination of the lactate dehydrogenase and pyruvate formate lyase pathways by disruption of the ldh and pflB genes, respectively ...
D J Leak, T Atkinson
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Metabolic engineering of Escherichia coli for high-yield uridine production
Metabolic Engineering, 2018Uridine is a kind of pyrimidine nucleoside that has been widely applied in the pharmaceutical industry. Although microbial fermentation is a promising method for industrial production of uridine, an efficient microbial cell factory is still lacking. In this study, we constructed a metabolically engineered Escherichia coli capable of high-yield uridine ...
Heyun Wu +10 more
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Genetic engineering of peppermint for improved essential oil composition and yield
Transgenic Research, 2005The biochemistry, organization, and regulation of essential oil metabolism in the epidermal oil glands of peppermint have been defined, and most of the genes encoding enzymes of the eight-step pathway to the principal monoterpene component (-)-menthol have been isolated. Using these tools for pathway engineering, two genes and two expression strategies
Mark R, Wildung, Rodney B, Croteau
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