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51.
Etienne Brauns Joost Helsen Wim Schiettecatte Inge Genné 《Clean Technologies and Environmental Policy》2008,10(2):189-201
The optimal use of process water becomes increasingly important since natural water resources are heavily solicited by a growing
economy. Two steps can be considered in the process water optimization. A first step is the inventory of the different process
streams in the process water network. Pure mathematical modeling of a dynamic water network is extremely complicated and expensive.
As an approximation, the use of a steady-state network node model within commercial software is accepted to set up a water
balance. Sophisticated software tools are available but common solver software may offer an alternative. A second step is
the water “pinch” which searches for an optimal use of process water by combining sources and sinks, taking into account contaminant
concentrations of process streams. Sophisticated pinch software can be applied but it is also possible to implement a simplified
combinatory approach. Such approach can be pragmatically programmed in e.g., Visual Basic. Such tool allows for a first evaluation
of the complex combinatory sources–sinks problem, enabling a low cost and easy-to-handle first interpretation of possible
water-reuse opportunities. This could stimulate a further enhanced analysis with more advanced software tools and therefore
promote a sustainable use of process water in the industrialized world. 相似文献
52.
Steven Visser Inge Kerssensvan Drongelen Petra C. De WeerdNederhof James Reeves 《Creativity & Innovation Management》2001,10(4):259-268
At NIAB, a UK based company that provides research, services and information to the agricultural and food sector, a system has been designed that helps to assess and manage the growing research programme of the company. Since the company was ‘privatised’ four years ago, research activities have increased and moved away from solely applied research to a mix of applied and more fundamental research. Being a key element of the new developed company strategy, research now plays an increasing important role in broadening the scope of the company and keeping current services competitive by driving innovation. All research at NIAB is externally funded. In this paper we report on the process to design NIAB’s performance measurement system, for which the Performance measurement system Systematic Design Approach was used. The design process was started with an elaborate structured problem analysis of the research process and its inter and extra–organisational context. Based upon this analysis, firstly a conceptual and secondly a detail design of a performance measurement system was made. To maximise the leverage from research, the system has been designed to optimise the value delivered to the funder as well as the value delivered to internal customers in the form of knowledge that drives innovation. 相似文献
53.
CASTTGRINDINGR○ (铸造温度修磨 )工艺 ,通过对连铸板坯进行在线热精整 ,使其能够将板坯连铸生产与热轧工艺有机地形成一个整体。介绍了 CASTTGRINDINGR○热修磨工艺的主要特点和带来的好处 ,并举例说明与目前在碳钢精整时通常采用的传统式火焰清理设备相比 ,新工艺拥有的主要优点 相似文献
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Norway has been a very important oil exporter for the world and an important supplier for Europe. Oil was first discovered in the North Sea in late 1960s and the rapid expansion of Norwegian oil production lead to the low oil prices in the beginning of the 1990s. In 2001, Norway reached its peak production and began to decline. 相似文献
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59.
Application of proteomics to understand the molecular mechanisms behind meat quality 总被引:1,自引:0,他引:1
The proteome is expressed from the genome, influenced by environmental and processing conditions, and can be seen as the molecular link between the genome and the functional quality characteristics of the meat. In contrast to traditional biochemical methods where one protein is studied at a time, several hundred proteins can be studied simultaneously. Proteomics is a promising and powerful tool in meat science and this is reflected by the increasing number of studies emerging in the literature using proteomics as the key tool to unleash the molecular mechanisms behind different genetic backgrounds or processing techniques of meat. Thus understanding the variations and different components of the proteome with regard to a certain meat quality or process parameter will lead to knowledge that can be used in optimising the conversion of muscles to meat. At present, there has been focus on development of techniques and mapping of proteomes according to genotypes and muscle types. In the future, focus should be more towards understanding and finding markers for meat quality traits. This review will focus on the methods used in the published proteome analyses of meat, with emphasis on the challenges related to statistical analysis of proteome data, and on the different topics of meat science that are investigated. 相似文献
60.
Van Doorn Muriel D.; Branje Susan J. T.; VanderValk Inge E.; De Goede Irene H. A.; Meeus Wim H. J. 《Canadian Metallurgical Quarterly》2011,25(1):157
This study longitudinally investigated spillover effects of conflict resolution styles in adolescent-parent relationships and adolescent friendships. Questionnaires about conflict resolution styles with parents and best friends were completed by adolescents from two age cohorts: 559 early adolescents (mean age 13.4) and 327 middle adolescents (mean age 17.7). Path analyses on two waves, with a three-year interval, indicated that in the early-to-middle adolescent group positive problem solving and conflict engagement spilled over from adolescent-parent relationships to adolescent friendships and not from adolescent friendships to adolescent-parent relationships. In the middle-to-late adolescent group, we found bidirectional spillover effects for these two conflict resolution styles. For withdrawal, we found bidirectional spillover effects in both cohorts. This study showed that both parents and friends set the stage for exercising and learning conflict resolution styles and thereby shape adolescents' future conflict behavior. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献