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121.
A small commercially available laboratory mill was found to be suitable to dehull small batches of sorghum grain. The device used one grinding plate and an agitating dimpled plate and took about 1 min to adequately dehull the grain. At the completion of dehulling period decorticated grain was collected directly in a sample holder. Data from various cultivars, grain sizes and types of grain were reproducible. It only required 10 s to clear the device between samples. 相似文献
122.
123.
Pandanus conoideus fruit contained 19.4% by dry weight of red fat. Major fatty acids contained in the fat were oleic (67.6% of the total fatty acids), palmitic (18.7%) and linoleic (7.6%) acids. The fat had an unusually high level of free fatty acid (90.0%) which may have resulted from the action of fat splitting enzymes. 相似文献
124.
125.
Z. Grubač M. Metikoš-Huković R. Babić I. Škugor Rončević M. Petravić R. Peter 《Materials science & engineering. C, Materials for biological applications》2013,33(4):2152-2158
Mg and Mg-alloys are promising materials for biodegradable implants. In order to slowdown the Mg-alloy (AZ91D) degradation and enhance its biocompatibility, the alloy surface was modified with alkylphosphonate self-assembling films. The binding configuration and the structural organization of alkylphosphonate monolayers on the Mg-alloy surface were investigated using contact angle measurements, FTIR, and XPS. Combination of FTIR and XPS data indicated the presence of several different bonding modes (mono-, di-, and tri dentate) of phosphonate head groups with the alloy surface. The existence of well organized and ordered self-assembled alkylphosphonate monolayers with good barrier protecting properties in a physiological solution is a key step in the development of biocompatible Mg-alloy implants. 相似文献
126.
Golsa Samii-Saket Jeffrey G. Boersma Gary R. Ablett Duane E. Falk Ron Fletcher Istvan Rajcan 《Journal of the American Oil Chemists' Society》2011,88(11):1795-1798
Development of high oil soybeans would reduce the cost of soybean oil production for biodiesel or edible oil applications.
An accurate determination of soybean seed oil concentration is essential especially when developing superior cultivars with
increased seed oil content. The objective of this study was to develop an oil measurement method for single seeds using NMR
spectrometry. An NMR spectrometer was calibrated using commercial cooking oil. Fifteen cultivars of known mean oil content
were used to evaluate the calibration curves. The calibration curves developed had a correlation coefficient of 0.99. It was
found that soybean and corn oil gave identical results over the calibrated interval. 相似文献
127.
Ilya Frisman Ron Orbach Dror Seliktar Havazelet Bianco-Peled 《Journal of materials science. Materials in medicine》2010,21(1):73-80
Controllable bio-synthetic polymeric hydrogels made from fibrinogen-poly(ethylene glycol) adducts have been successfully employed in tissue engineering. The structural consequences of PEG conjugation to fibrinogen (i.e., PEGylation) in such a hydrogel network are not fully understood. The current investigation details the structural alterations caused to the reduced fibrinogen polypeptides by the covalent attachment of linear or branched PEG chains. The structure of PEGylated fibrinogen polypeptides were comprehensively characterized using small angle X-ray scattering, light scattering, and cryo-transmission electron microscopy. These characterizations concur that the bio-synthetic hybrids self-assemble into elongated objects, having a protein core of about 50 Å in diameter decorated with multiple PEG chains. Conjugates with branched PEG chains were shorter, and have lower average molecular weight compared to conjugates with linear chains. The diameter of the protein core of both samples was similar, suggesting a tail-to-head aggregation of the PEGylated fibrinogen polypeptide. A more complete understanding of this unique structural arrangement can provide further insight into the full extent of biofunctional accessibility in a biomaterial that combines the advantages of synthetic polymers with bioactive proteins. 相似文献
128.
Because digital media management and distribution technologies face some of the same challenges that e-Science aims to address, this technology is a viable solution to meet the broadcasting domain's rigorous demands. 相似文献
129.
天然裂缝性储层的特征 总被引:2,自引:0,他引:2
Tom Bratton Dao Viet Canh Nguyen Van Que Nguyen V.Duc Paul Gillespie David Hunt BingjianLi Richard Marcinew Satyaki Ray Bernard Montaron Ron Nelson David Schoderbek Lars Sonneland 《国外测井技术》2008,23(1):47-66
天然裂缝性储层给开采带来了一个矛盾难题。这类储层包括低油气采收率储层,这些储层最初可能表现出高产,但产能下降得非常快。此外,这类储层还经常出现早期见气或见水等问题。而另一方面,一些天然裂缝性储层也是全球最大、产量最高的储层。这类储层的这种矛盾特性激发业界尽力去深入了解其特征,以便更有把握地对其进行模拟分析。 相似文献
130.
Fenne Verhoeven Michaël F. Steehouder Ron M.G. Hendrix Julia E.W.C. Van Gemert-Pijnen 《International journal of human-computer studies》2010,68(6):328-343
Currently, infection control guidelines in hospitals and other health care institutions are more expert-driven than user-oriented. In order to enhance the usability of the expert-driven guideline format, we developed a website for the communication of existing guidelines that better fit the practical information needs of health care workers (HCWs). We employed a user-centered design process that involved two studies.In the initial study, 28 HCWs were asked to solve tasks using existing, paper-based infection control guidelines. In order to detect their strategies and problems, the participants were asked to think aloud. Usability problems occurred due to poorly structured information, insufficient quality of information, and a mismatch between experts’ and HCWs’ vocabulary. To overcome these shortcomings, three design principles were applied for communicating infection control guidelines: better navigation (the guidelines should be searchable in several ways); multimodality (the guidelines should not be presented as text only), and action-orientation (the guidelines should be presented as HCWs’ behaviors). A website was developed to meet these principles.In the second study, the same 28 HCWs completed tasks identical to those of the first study while thinking aloud, but this time using the website. The percentage of correctly completed tasks increased and the mean time for task completion decreased significantly. Also, respondents were more satisfied with the website than the paper-based guidelines. The number of problems due to poor information quality and a mismatch in vocabulary declined, although the number of structural problems increased. This can probably be explained by the fact that the navigation structure was user-generated (using Card Sort), in contrast to a standardized answer format based on common usability principles.Overall, we found that involving HCWs in the development process is important to create a sense of ownership and to foster the implementation of the guidelines, which might eventually result in compliance and reduce health care-associated infections. This paper outlines concrete steps for how to involve HCWs in the design process. 相似文献