共查询到20条相似文献,搜索用时 187 毫秒
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通过一年多的努力和准备,香港印刷供应链商会于2005年1月26日在上海宣布成立。该商会是一个非营利性的机构,由香港燕京行有限公司、德国高宝公司、爱克发公司、美国ECRM公司、日本富士胶片公司、瑞士洛森公司、香港国腾公司及比利时艾司科公司等多家世界印刷供应商发起成立。 相似文献
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近日,北大方正公司与爱普生公司联合举捞“方正-爱普生联手打造色彩管理新境界”为主题的全国巡展,活动共设11站。[第一段] 相似文献
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国内外精梳机的现状及发展趋势 总被引:4,自引:0,他引:4
介绍了国内外精梳机的发展现状;分析了瑞士Rieter公司、意大利Marzoli公司及日本原织机公司几种精梳机的性能特征。认为当前精梳机的发展方向是:速度高、质量优、自动化和大卷装。 相似文献
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首先介绍了全球铜版纸产能现状、未来需求量和预测产量,接着描述了国内铜版纸产能现状、未来市场发展趋势以及国内主要铜版纸供应商,最后列出了铜版纸行业所需化学品并分析其未来发展方向。 相似文献
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Larssen T Huseby RB Cosby BJ Høst G Høgåsen T Aldrin M 《Environmental science & technology》2006,40(24):7841-7847
We present a statistical framework for model calibration and uncertainty estimation for complex deterministic models. A Bayesian approach is used to combine data from observations, the deterministic model, and prior parameter distributions to obtain forecast distributions. A case study is presented in which the statistical framework is applied using the hydrogeochemical model (MAGIC) for an assessment of recovery from acidification of soils and surface waters at a long-term study site in Norway under different future acid deposition conditions. The water quality parameters are coupled with a simple dose-response model for trout population health. Uncertainties in model output parameters are estimated and forecast results are presented as probability distributions for future water chemistry and as probability distributions of future healthy trout populations. The forecast results are examined for three different scenarios of future acid deposition corresponding to three different emissions control strategies for Europe. Despite the explicit consideration of uncertainties propagated into the future forecasts, there are clear differences among the scenarios. The case study illustrates how inclusion of uncertainties in model predictions can strengthen the inferences drawn from model results in support of decision making and assessments. 相似文献
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Quantification of climate change impacts on food safety requires food safety assessment with different past and future climate scenario data to compare current and future conditions. This study presents a tool to prepare climate and climate change data for local food safety scenario analysis and illustrates how this tool can be used with impact models, such as bacterial and mycotoxin growth and pesticide models. As an example, coarse gridded data from two global climate models (GCMs), HadGEM2-ES and CCSM4, are selected and downscaled using the “Delta method” with quantile-quantile correction for Ukkel, Belgium. Observational daily temperature and precipitation data from 1981 to 2000 are used as a reference for this downscaling. Data are provided for four future representative concentration pathways (RCPs) for the periods 2031–2050 and 2081–2100. These RCPs are radiative forcing scenarios for which future climate conditions are projected. The climate projections for these RCPs show that both temperature and precipitation will increase towards the end of the century in Ukkel. The climate change data are then used with Ratkowsky's bacterial growth model to illustrate how projected climate data can be used for projecting bacterial growth in the future. In this example, the growth rate of Lactobacillus plantarum in Ukkel is projected to increase in the future and the number of days that the bacteria are able to grow is also projected to increase. This example shows that this downscaling method can be applied to assess future food safety. However, we only used two GCMs. To obtain a more realistic uncertainty range, using many different GCM output datasets and working directly with climate modellers is recommended. Our approach helps food safety researchers to perform their own climate change scenario analysis. The actual algorithm of the downscaling method and its detailed manual is available in the supplementary material. 相似文献
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M. J. HAYES 《International Journal of Dairy Technology》1979,32(4):174-177
The future of the catering market with the present increase in meals provided outside the home, and the measures taken to overcome the effect of inflation are considered. Recommendations of the Department of Education and Science for the nutritional standard of school meals with the possible introduction of cheese, and the future of milk-based products and dairy foods in catering are assessed. 相似文献
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Evaluating rare earth element availability: a case with revolutionary demand from clean technologies 总被引:3,自引:0,他引:3
Alonso E Sherman AM Wallington TJ Everson MP Field FR Roth R Kirchain RE 《Environmental science & technology》2012,46(6):3406-3414
The future availability of rare earth elements (REEs) is of concern due to monopolistic supply conditions, environmentally unsustainable mining practices, and rapid demand growth. We present an evaluation of potential future demand scenarios for REEs with a focus on the issue of comining. Many assumptions were made to simplify the analysis, but the scenarios identify some key variables that could affect future rare earth markets and market behavior. Increased use of wind energy and electric vehicles are key elements of a more sustainable future. However, since present technologies for electric vehicles and wind turbines rely heavily on dysprosium (Dy) and neodymium (Nd), in rare-earth magnets, future adoption of these technologies may result in large and disproportionate increases in the demand for these two elements. For this study, upper and lower bound usage projections for REE in these applications were developed to evaluate the state of future REE supply availability. In the absence of efficient reuse and recycling or the development of technologies which use lower amounts of Dy and Nd, following a path consistent with stabilization of atmospheric CO(2) at 450 ppm may lead to an increase of more than 700% and 2600% for Nd and Dy, respectively, over the next 25 years if the present REE needs in automotive and wind applications are representative of future needs. 相似文献
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我国方便食品的市场前景 总被引:3,自引:0,他引:3
介绍了方便食品的概念和分类,对我国几种主要方便食品-方便面、冷冻食品、方便主食、休闲食品、微波食品的发展历史与现状、存在问题和发展前景进行了阐述,并就新世纪方便食品的发展作了预测。 相似文献
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Yun‐Cheng Li Shu‐Yan Liu Fan‐Bing Meng Da‐Yu Liu Yin Zhang Wei Wang Jia‐Min Zhang 《Comprehensive Reviews in Food Science and Food Safety》2020,19(4):2256-2296
Meat adulteration, mainly for the purpose of economic pursuit, is widespread and leads to serious public health risks, religious violations, and moral loss. Rapid, effective, accurate, and reliable detection technologies are keys to effectively supervising meat adulteration. Considering the importance and rapid advances in meat adulteration detection technologies, a comprehensive review to summarize the recent progress in this area and to suggest directions for future progress is beneficial. In this review, destructive meat adulteration technologies based on DNA, protein, and metabolite analyses and nondestructive technologies based on spectroscopy were comparatively analyzed. The advantages and disadvantages, application situations of these technologies were discussed. In the future, determining suitable indicators or markers is particularly important for destructive methods. To improve sensitivity and save time, new interdisciplinary technologies, such as biochips and biosensors, are promising for application in the future. For nondestructive techniques, convenient and effective chemometric models are crucial, and the development of portable devices based on these technologies for onsite monitoring is a future trend. Moreover, omics technologies, especially proteomics, are important methods in laboratory detection because they enable multispecies detection and unknown target screening by using mass spectrometry databases. 相似文献
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介绍了我国水剌法非织造布的发展情况,列举了目前我国水刺法非织造布企业发展所面临的一些问题,并对今后我国水刺法非织造布行业的发展提出了建议。 相似文献