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A new method of oscillographic titration for the determination of nitrogen content in flour is described The sample was digested with H 2SO 4 Na 2SO 4 CuSO 4 Oscillographic titration is conducted on NH + 4 with Na TPB method,then calculate the nitrogen content Compared with standard methods,this method choose innoxious titrant,has a sharp titration endpoint, needs no distillation absorption and indicator It has the advantages of being easy and quick in operation,and the determination re...
研究了面粉中蛋白质含量的示波滴定法。样品用H2 SO4 Na2 SO4 CuSO4 消化处理,N以NH4 +的形式存在于试液中,用过量四苯硼钠沉淀铵,沉淀过滤,过量的四苯硼钠用氯化四乙基铵标准溶液返滴定,以四苯硼钠切口消失为终点,计算出氮含量,再换算为蛋白质含量。与通用的标准分析方法相比较,本方法所用试剂无毒,终点变化敏锐,不需蒸馏吸收,不外加指示剂,具有操作简便、快速,测定结果准确可靠。
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The state-of-the-art of chemical process and equipment intensificationtechniques is reviewed. A novel concept of compact industrial furnace isproposed, in which tube with static mixer for partly intensification is determined. 2 A virtual engineering scale-up approach is put forward. The key points toimprove the scaling-up efficiency include two tools: one is rapid generationtechniques for computational models in which a re-use library is built, the otheris rapid prototyping manufacturing, employed for rapid generation forexperimental models.3 The tube is the key component for industrial furnace. Material microstructure,high temperature strength, and casting process of the tube with static mixer arediscussed as compared with those of traditional tube. Some special features ofthe static mixer tube are demonstrated.4 An evaluation method of velocity-based disturbance effect of fluid field wasproposed.
主要内容包括: 1、总结了化工过程强化技术的现状和强化研究的途径,提出了紧凑式工业炉的概念,确定用静态混合式炉管进行局部强化。2、提出了静态混合式炉管应用的虚拟工程放大研究方法,指出研究中提高效率的关键是计算模型快速生成技术和实验模型的快速原型制造。3、对工业炉的关键部位——炉管,从材料成分、强度、制造等方面对静态混合式炉管的设计、制造进行了分析,与常规炉管对比,说明了静态混合式炉管的独特性和要求。4、应用快速原型方法,迅速、准确地得到了符合精度、强度要求的静态混合式炉管模型,产品的精度和强度完全符合要求,提高了模型制造效率。5、应用计算流体动力学方法,进行静态混合式炉管的工程放大研究。
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Reference crop evapotranspiration (ET0) and new wetness index were both calculated and analyzed according to Penman-Monteith scheme recommended by FAO with routine meteorological data from 616 weather stations in China from 1975 to 2004. In terms of grades of wetness index from Chinese Climate Classification Criterion, China is classified into severe arid, arid, semi-arid, semi-humid and humid zones, respectively, which are compared with the demarcations from rainfall-based indices in order to reveal the similarity and difference in association with the two schemes under current global climate warming. Besides, the spatio-temporal analysis of climate wetness over the country in the past thirty years was performed.
依据中国616个地面气象台站1975年至2004年的日气象资料,利用联合国粮农组织推荐的参考蒸散计算方法,计算参考作物蒸散(ET0)和湿润指数,按照中国气候区划中的干湿指标把中国分为极干旱、干旱、半干旱、半湿润和湿润气候区,并与传统的降水量干湿指标进行对比,揭示在全球气候变化下两种干湿指标的异同,最后对中国近30 a干湿状况进行时空分析。
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In one report, older people with type 2 diabetes who drank daily, but moderately, had a dramatically lower incidence of deaths from heart disease compared with nondrinkers. 66 This outcome is not surprising since moderate alcohol intake is associated with protection from heart disease in most other reports.
在一个报告中,老年人2型糖尿病患者每天喝谁,但适度,有一个由心脏病死亡率显着降低发病率比不喝酒。66这个结果并不奇怪,因为温和的酒精摄入量与心脏病有关的保护最其他报告。
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Methods Clinical data of 62 patients with recurrent ICH were analyzed and compared with those of patients with first-ever ICH. Recurrences were seen in 62 patients.
回顾性分析62例复发性脑出血患者临床资料,并与同期住院的首发脑出血患者进行对照研究。
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Methods: According to their urinary albumin excretion rate, Diabetes mellitus patients with micrangium disease were further divided into three subgroups: normo-albuminuria、micro-albuminuria and clinical proteinuria; The expression of platelet membrane α-glucoprotein (CD62p) and cytolysosome protein (CD63)、platelet aggregation function and mean platelet volume was determined with flow cytometer、blood aggregation analyzer、automated blood cell counter (MEK-6318K) respectively, and compared with 30 normal controls.
对糖尿病微血管病变患者按尿清蛋白排泄率分为正常清蛋白尿组、微量清蛋白尿组、临床清蛋白尿组三组,分别用流式细胞术、血液聚集仪、全自动血细胞分析仪测定血小板内α-颗粒膜蛋白(CD62p)、溶酶体蛋白(CD63)的表达及血小板聚集功能和平均体积,并与30例正常对照组比较。
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Installation Bundled with car alarm and save technician time and simplify wiring tasks compared with installation of two separated systems in one car Management Powerful graphical user interface for rapid understandings of tyre status Two-way vehicle security system to secure car Real-time monitoring of tyre pressure and temperature is also achieved to allow users to get information immediately Beep sound when start engine to remind driver TPMS is ready One remote controller can monitor both tyre pressure and secure car from burglary Reliability and Robust All sensors are locked with special tool All major components are swappable in case any component is broken Strict environmental test has approved its lifespan can last for up to 10 years Provides signal accessibility by providing peripheral signal integrity technology Receiver has fuzzy to learn IDs from original sensors and spared sensors Extremely lightweight, tiny size and special mechanical design of sensor have won TD-3000A the best TPMS system in this industry
安装 与在一部汽车上安装两个单独的系统相比,我公司产品附加了汽车报警器,节省了技术时间,简化了配线任务操纵强大的图像界面,可快速把握轮胎状况双向车安全系统,确保汽车安全胎压和温度实时监控系统,使得用户可立即获取相关信息发动机启动时会发出嘟嘟的响声,提醒驾驶员TPMS已预备就绪遥控器可监视胎压并确保汽车防盗可靠强劲所有的传感器由非凡工具锁定所有主要元件可置换,以防任何元件出现损坏严格的环境测试证实该产品的使用寿命可达10年通过外围信号完整性技术可接收信号接收器可从原始传感器和备用传感器模糊接收标识部分的信号传感器重量极轻,尺寸小巧以及非凡的机械设计使TD-3000A在业内赢得了&最好的TPMS系统&荣誉。
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Compared with before treatment, the enzyme activity of German cockroach changes with the difference of time after treated with sub-lethal doses of deltamethrin and phoxim.
经溴氰菊酯和辛硫磷亚致死剂量处理后德国小蠊体内酶活性在不同的时间与处理前存在差异。
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Methods A retrospective cohort for the risk factors and clinical biochemical indexes of 66 old patients with ICAO were studied, and was compared with 26 middleaged patients with ICAO.
回顾分析66例老年ICAO患者的危险因素和临床生化指标,并将其与26例中青年ICAO患者进行比较。
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Lipscombe, M.D., M.Sc., of the Institute for Clinical Evaluative Sciences, Toronto, and colleagues evaluated the risks of CHF, heart attack, and all-cause death associated with the use of TZDs, compared with other oral hypoglycemic agents among patients age 66 years or older with diabetes.
洛林属lipscombe ,医学博士,硕士,研究所,为临床评估科学,多伦多,和同事评估风险的充血性心力衰竭,心脏病发作,全方位造成人的死亡与使用tzds ,与其他口服降糖代理商之间的病人年龄66岁或以上的老人患有糖尿病。
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。