This paper analyzed the distinguish between total pollutant discharge monitoring and supervise monitoring in the lowed test limit, monitoring frequency, sampling optimization of first pollutant and pollutant over discharge standard Some countermeasures were put forwar
分析了排污总量监测过程中关于最低检出限、一类污染物的采样点位、监测频次、超标污染物等方面与污染源监督监测的区别以及存在的问题 ,并提出了相应的对策和措施。
Objective To observe the frequency of direct nursing categories within 72 hours of admission in major burn patients in order to design nursing training programs and make rational arrangement of nurses.
方法 采用加拿大PRN系统统计 42例大面积烧伤患者入院后2 4、48、72h所接受的直接护理项目频次。
OBJECTIVE: To screen out the Chinese herbs of treating of atypical pneumoina by researching the frequency use of Chinese herbal medicine in the prevention and treatment prescriptions.
结果:在预防和治疗非典型肺炎中药处方中使用频次最高的中药分别是金银花和甘草;均位居前5位的中药有4味,依次是甘草、金银花、黄芪和连翘。
Mean concentrations and frequency of the compounds in drinking water of Jiangsu province,while the concentrations and frequency were determined in three water seasons of aboundence,average and dryness.
文章用化合物的潜在危害指数来指示物质对环境的毒性,结合江苏省饮用水中丰、平、枯三个水期测定出的有机物污染物的检出浓度和检出频次,利用分级、加权法对检出的化合物进行排序,从而筛选出江苏省饮用水中的优先监测污染物。
Using the conventional meteorological and anemometer data and the Asian circulation data from 1971 to 2000,as well as the 8-type land use data from 1990 to 2000,an ecological/climatic effect model of sandstorm occurrence frequency and mean duration was established for the spring from March to May in Ningxia region.
利用宁夏1971~2000年常规气象、自记风及同期亚洲环流资料,并结合1990~2000年宁夏八大类土地详查资料,建立了对宁夏中部干旱带春季3~5月份沙尘暴发生频次和平均持续时间拟合效果较好的生态/气候影响分析模型。
Using the conventional meteorological and anemometer data and the Asian circulation data from 1971 to 2000, as well as the 8-type land use data from 1990 to 2000 , an ecological/climatic effect model of sandstorm occurrence frequency and mean duration was established for the spring from March to May in Ningxia region.
利用宁夏1971-2000年常规气象、自记风及同期亚洲环流资料,并结合1990-2000年宁夏8大类土地详查资料,建立了对宁夏中部干旱带春季3-5月沙尘暴发生频次和平均持续时间拟合效果较好的生态/气候影响分析模型。
Citation Analysis in the Digital Scientific Research Age——Demonstration Research Based on Citation Frequency Analysis;
数字科研时代的引文分析——基于被引频次分析的实证研究
How to improve citation frequency and impact factor of Chinese English journals;
如何提高英文版科技期刊的被引频次和影响因子