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    ANALYSIS OF SECOND ORDER STATIC STABILITY FOR ARTICULATED TRACTORS
    铰接式拖拉机静态二级倾翻稳定性分析
    The Determination of the Second Order Rate Coefficient of Enzymatic Reaction for the Mediator Enzyme Electrode
    介体型酶电极二级催化反应速度常数的测定
    Discussion of differentiation of intercrystalline brine in salt group S_3 of Second supply system in Qarhan Salt Lakes
    再论察尔汗盐湖察尔汗二级补给系统S_3盐层晶间卤水分异问题
    The Second Order Approximation Theory of Three Dimensional Elastic Plates and lts Boundary Conditions Without Using Kirchhoff-Love Assumptions
    不用Kirchhoff-Love假设的三维弹性板二级近似理论及其边界条件
    STUDY ON THE REACTIVE DIFFERENCE OF THE PRIMARY,SECOND AMINE IN DIAMINE - EPOXY OF BISPHENOL A SYSTEM
    二胺/双酚A环氧体系一、二级胺基反应活性差别的研究
    Discussion of Differentiation of Intercrystalline Brine in Salt Group S_3 of Dabuxun Second Supply System of Qarhan Salt lake
    再论察尔汗盐湖达布逊二级补给系统S_3盐层晶间卤水分异问题
    Research on the Comprehensive Appraising Method and Standard for Second Class Footballers Among P E Students
    体育教育专业学生二级足球运动员综合评定方法与标准的研究
    Second Order Reaction-Discussion of Saponification Experiment of Ethyl Acetate
    二级反应──乙酸乙酯的皂化实验方法的探讨
    The experimental results demonstrate that the optimal HRT of SBR was 6 h,and the optimal reaction time of SBR was 4 h of hydrolysis acidification-SBR system at the CODcr of influent was 1 250~1 830 mg/L and eduction ratio of SBR was 1∶2,the effluent water was conform to the second grade of the national standard for wastewater discharge(GB 8978—1996).
    试验结果表明,当进水CODcr质量浓度为1 250-1 830 mg/L,水解酸化池的最佳水力停留时间为6 h,SBR在排出比为1∶2,最佳的反应时间为4 h,出水可以达到国家污水综合排放标准(GB 8978—1996)二级排放标准.
    By the comparison between different adsorption kinetics, it could be drawn that pseudo second order model could be used to simulate the adsorption process effectively. The relation between the k2 value of the pseudo second order and particle diameter could be expressed as: ln(k2)=-1.039 ln(dp)-9.014;
    GAC对BPA为单分子层吸附,400min基本可达到平衡,且吸附速率变化符合拟二级动力学模型,dp与速率常数k2之间符合ln(k2)=-1.039ln(dp)-9.014;
    The result shows the average removal rate of BOD_5,COD,SS, NH_4~+-N,TN,TP and coliform group bacteria reaches 75.2%,68.2%,85.4%,74.3%,45.6%, 53.3% and 92.4%,respectively,which meets the requirements of second class discharge standard of China and reuse,though the pH rises little.
    结果表明:处理后污水中BOD_5、COD、SS、NH_4~+-N、TN、TP、总大肠菌群数的平均去除率分别为75.2%、68.2%、85.4%、74.3%、45.6%、53.3%、95.4%,pH值略有升高,出水能达到污水综合排放二级标准,可进行回用。
    When the inflow CODCr was in the range of 1080~2624mg/L,the effluent could research at the second stan- dard level of《Discharge Standard of water pollutants for meat packing industry》GB13457-92,the main contamination CODCr was≤120 mg/L.
    当进水COD_(Cr)为1080~2624 mg/L时,出水可达到国家《肉类加工工业水污染物排放标准》(GB13457-92)中的二级标准,主要污染物COD_(Cr)≤120mg/L。
    Results A set of indicator system was established, including 1 first class indicator, 6 second class indicators and 56 third class indicators.
    结果:形成了一套包含1个一级指标,6个二级指标和56个三级指标的奥运健康影响评估指标体系。
    Determinants coexisting with asthma in children were history eczema(19.22%),history with allergic rhinitis(25.98%),and first or second level relatives with asthma or allergic disorder(﹥20%).
    相关因素显示:19.22%有婴儿湿疹史,25.98%有过敏性鼻炎史,一、二级亲属有哮喘或过敏者占20%以上;
    The experiments proved that the first stage reaction-lanthanum nitrate /sodium hydroxide reaction was a second order reaction and its kinetic equation was-dcA/dt=25.5c2A.
    经实验验证,第一阶段硝酸镧/氢氧化钠盐碱反应为二级反应,动力学方程为-dcA/dt=25.5c2A。
    The second stage reaction was approximately seen as single lanthanum hydroxide /stearic acid reaction to carry out kinetic research,which was in accordance with the characteristic of second order reaction and the kinetic equation was expressed as-dcA/dt=1666c2A.
    第二阶段近似看作氢氧化镧/硬脂酸皂化反应,符合二级反应特征,动力学方程为-dcA/dt=1666c2A。
    [Methods]To analyze the data of hospital infection from 1995 to 2003 in 22 second level comprehensive hospitals at urban area in Luoyang.
    [方法]对1995~2003年洛阳市城区22家二级综合医院医院感染发生情况进行分析。
    The result of actual motion indicates that the CODCr,BOD5 and SS in the discharged water absolutely meet the requirements of provincial first class effluent discharge standard and the second class effluent standard GB 8978-1996.
    实际运行结果证明,各单元状态稳定,出水中的CODCr、BOD5和SS完全达到地方一级排放标准以及GB8978—1996中的二级排放标准要求。
    Results Risk coefficient(Ki) was the sum of average Ridit value and occupyied-bed rate for critical patient. On the basis of RSR method Ki value was divided into four grades: the first is low risk; the second is general risk;
    结果风险系数(Ki)=各科室平均Ridit值+各科危重病人占用床日比值,并结合RSR法,将Ki值分为4档,即将临床科室风险分为4个等级:一级是风险低,二级是风险一般,三级是风险较高,四级是风险高。
    Compared with control group,the second order index evaluation of 16PF in study group at the end of 24w after training was not significant difference(P>0.05).
    研究组停止训练24 w末16项人格测试量表二级指标评定与对照组比较无显著性差异(P>0.05)。
 

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