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41.
 The quantities of the biologically active isomer of conjugated linoleic acid (CLA) – C18:2 c9t11 – in 139 German foods were analysed by capillary gas chromatography (results are given as a % of all identified fatty acid methyl esters). The CLA content ranged from 0.40% (Gouda) to 1.70% (Jurassic cheese, Old Emmentaler) in dairy products, from 0.11% (rabbit) to 1.20% (lamb) in meat, and from 0.01% (pike-perch) to 0.09% (carp) in fish. CLA could be detected in neither vegetable fats or oils nor in margarines (CLA <0.01%). Crisps, chocolates, cakes and pastries, and other foods have only a negligible CLA content. The average estimated CLA intake in Germany was calculated to be 0.35g CLA/day for women and 0.43g CLA/day for men. Received: 22 July 1997  相似文献   
42.
PAL/RAVE模块在大民屯凹陷沈65块滚动勘探中的应用   总被引:1,自引:0,他引:1  
本文针对沈65块的构造破碎,储层薄的特点,在油气层标定和构造精细解释的基础上,运用PAL和RAVE模块建立了地震属性与油气的关系模式,并以此为依据,对本区储层进行了预测和油气检测,其结果与已知油气区吻合较好,在此基础上对该区的两个目标进行了部署,取得了较好的勘探效果,从而为大民屯地区深化滚动勘探开辟了一条新途径。  相似文献   
43.
太阳散射是太阳能系统分析的重要参数。在有太阳总射而没有散射的情况下,散射可通过总射估计出。在北京和成都实测数据基础上,建立了具有2个参数的日散射概率密度模型。该模型的参数通过迭代方法给出。模型基本反映了日散射的分布特征。给出了模型应用的一般方法。讨论了模型的通用性。  相似文献   
44.
为进一步提高华北电网的调度自动化水平,华北电力调度局在统一的CC-2000平台上设计开发了一体化的调度计划和实时发电控制系统.文章阐述了该系统的目的、设计思想、体系结构和各子系统的功能及采用的算法.华北电网的实际运行结果表明,该系统可以减轻调度员的负担,且运行稳定、计划结果正确.  相似文献   
45.
DCS控制系统中UPS电源的配置使用和维护   总被引:1,自引:0,他引:1  
李园  魏日新 《自动化博览》2005,22(4):49-49,58
介绍了DCS控制系统中UPS电源的配置选用和工作原理以及UPS电源正确的开关机步骤和维护注意事项。  相似文献   
46.
沈84块高凝油藏水淹层测井评价参数及其应用   总被引:5,自引:0,他引:5  
针对辽河沈84块沙三段下部高含水期高凝油藏储层水淹状况和特征,依据灰色系统油田开发分析方法及准则,利用测井、钻井取心、试油及有关地质资料,匹配、拟合和提取参数,分别以其特征性参数对高含水期油藏岩性、物性和水淹状况进行统计,采用正态统计特征值建立测井评价参数标准,以其准确率和分辨率自动组合放大,建立测井评价参数标准的权系数。通过该区沙三下的174口井高凝油藏水淹层测井评价参数研究的分析解释,划分出砂砾岩、含砾砂岩、中粗砂岩、细砂岩、粉砂岩和泥岩等岩性剖面,评价解释了不同类型的储层以及不同物性的油层、弱水淹层、中水淹层、强水淹层及水层,阐明了沈84块沙三下高凝油藏水淹状况及剩余油纵向分布规律。  相似文献   
47.
In order to provide a highly efficient, long-duration form of hemodialysis, we developed nocturnal hemodialysis. Patients were dialyzed nightly at home for 8 – 10 hours, 6 – 7 nights/week. We kept the dialysate flow at 100 mL/min and the blood flow at 250 – 300 mL/min. Patients were monitored remotely from the hospital through a computer connection. An internal jugular line was used as an access. We have trained 12 patients over 30 months and have accumulated 160 patient-months worth of data. The patients tolerated the dialysis very well and slept through the night. There was a significant improvement in their sense of well-being. Nightly Kt/V was 0.99. Weekly removal of phosphate was two times as high and β 2 -microglobulin four times as high as conventional hemodialysis. All patients have discontinued their phosphate binders and have increased their dietary phosphate and protein intake. Hypertension was controlled with fewer medications, and erythropoietin dosages decreased. Complications were infrequent and included catheter occlusion and infections. Reusing the dialyzers decreased the cost of the treatment to levels similar to continuous ambulatory peritoneal dialysis. Nocturnal hemodialysis represents a viable dialysis modality that combines high quality, low cost, and excellent tolerance.  相似文献   
48.
A demonstrative study for the wind and solar hybrid power system   总被引:1,自引:0,他引:1  
In March 1995, a small scale wind and solar hybrid power system was installed at Ashikaga Institute of Technology. Until now, the authors have acquired the data of the output of the hybrid power plant along with wind speed, wind direction, and the solar radiation, in order to demonstrate a complementary relationship between solar energy and wind energy.After nine months operation of the system, the authors confirmed that there exists a complementary relationship between solar energy and wind energy. We also found, however, that the power output by wind does not have much prospect compared to that by solar cell especially in summer season in Ashikaga area.  相似文献   
49.
During the day, there are considerable variations in the climatic factors prevailing in these regions. This is especially so during the 24-hour daily cycle of the long, hot and dry summer (mid-May to midOctober). Such climatic conditions have had a considerable impact on the daily living pattern of family life in the same season, particularly in the urban areas. During the same 24-hour cycle, they have compelled the inhabitants to shift their living activities both vertically in section and horizontally in plan; they do this in pursuit of more acceptable, if not, desirable internal thermal environmental ambience.  相似文献   
50.
薄膜式LNG运输船温度场研究   总被引:9,自引:0,他引:9  
液化天然气运输船液货舱热维护系统是一个结构复杂的、具有第三类边界条件的、多层平壁的稳态导热与自然对流及辐射换热相互耦合的三维复杂传热系统。针对这一复杂系统,考虑了船体主要构件、骨材、空腔空气对流、表面间的辐射对换热的影响,建立了数学模型,并给出了基于通用软件ANSYS的数值计算方法;还以某艘LNG运输船为例,进行了温度场的有限元分析。结果表明,所给出的对LNG运输船液货舱热维护系统的热分析方法是有效的。  相似文献   
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