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Search Results: 1 - 10 of 56282 matches for " 郭静静? "
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遥感技术应用于河流对城市气候影响研究
静静,刘京,
哈尔滨工业大学学报 , 2010, DOI: 10.11918/j.issn.0367-6234.2010.05.028
Abstract: 为了确定松花江水域冬夏季对哈尔滨市及周边区域的影响,给城市河流规划与合理利用提供正确的理论支持,采用地面数据采集与遥感数据采集相结合的方法,对2004年1月25日和6月1日的热红外遥感影像图进行分析,以流经哈尔滨市的松花江段为研究对象,根据冬夏季温度、相对湿度分布,确定松花江城市河道对周边区域的影响.研究结果表明:在夏季,市区温度较郊区温度低,水域两侧地表温度呈递增分布,且变化趋势北岸比南岸明显,湿度市区较郊区高,市区以松花江及毗邻地区为湿度分布中心,且北岸比南岸影响半径大.在冬季,市区温度比郊区温度高约4℃,水域两侧温度分布差异明显,冰封水体表面温度与南岸温度接近,比北岸温度高约2℃,湿度分布符合城市干岛效应,市区湿度比郊区低约1%.该成果为后期地面定点观测和移动测量奠定了数据基础与技术支撑.
失去乡村的中国教育和失去教育的中国乡村——一个华北山区村落的个案观察
A Loss of Ruralities in Chinese Education and a Loss of Education in Rural China ---A Case Observation on a Village in the Mountainous Area of North China

饶静,叶敬忠,静静
- , 2015,
Abstract: 在现代化和全球化发展过程中,中国城乡教育因急速变迁而产生了痛楚。在打破传统中国“差别统一的城乡良性循环”,推进近代“新式教育”以来,城市剥削和压迫乡村的城乡关系就决定了中国教育一步步地失去乡村,失去了传统中国的乡村文化和乡村价值。21世纪以来的“办学城镇化”更进一步在空间上和地理位置上使得中国教育失去乡村。一百多年来,中国教育不断地接受逐步失去“乡村”的事实,中国乡村也在外部压力下被迫应对“新式教育”以及“办学城镇化”的诸多调整,最终促成了今日我们看到的中国乡村教育之现实:如果说乡村有教育,也是城市的教育!
During the process of modernization and globalization, China’s urban and rural education has been undergoing rapid changes, which results in some painful experience. After the undermining of traditional China’s “an undifferentiated unity of virtuous urban and rural cycle” and the promotion of “modern education”, the urban-rural relations featured by the cities’ exploitation and suppression of countries lead to a gradual loss of ruralities in China’s education system and a loss of the traditional Chinese rural culture and values. Since the 21st century, the policy that promotes the running of schools in urban areas again strengthens this fact. During the 100 odd years, Chinese rural areas are forced to adapt to the “modern education” and the policy of “urbanization of school locations”, finally resulting in the status quo of rural education: if there is ever an education in rural areas, it is a replica of urban education.
煤电极式堆煤传感器布置改造实践
曹剑,振涛,静静,朱庆峰
煤炭科学技术 , 2013,
Abstract: 针对煤电极式堆煤传感器与矿用输送带控制器相距较远的特殊工况,仅采用敷设控制电缆的方式则可能会因电缆过长带来通信不稳定、电压衰减等问题,因此根据煤电极式堆煤传感器的工作原理,利用煤电极式堆煤传感器依靠具有导体特性的大地构成回路实现堆煤保护,将堆煤传感器安放到距离煤仓1700m处,实现了堆煤传感器的远距离使用。济宁三号煤矿应用此方案实现了带式输送机远距离堆煤保护。
大型城市河流对城市气候影响的实测研究
静静,刘京,宋晓程,
哈尔滨工业大学学报 , 2011, DOI: 10.11918/j.issn.0367-6234.2011.10.012
Abstract: 为得到夏季城市河流对热气侯的具体影响,采用定点观测方法,以松花江哈尔滨段为研究对象,在夏季最热月份展开为期一个月的实测,得出夏季各下垫面及大气温度的变化规律及各辐射通量的变化关系.数据分析显示:白天地表温度明显高于其他下垫面温度及大气温度.晴朗天气,地表温度比江面上空大气温度约高14℃,固定测点处水温低于河道上方的环境空气温度约2℃;且净辐射量值较大,可达700W/m2.此时显热通量和潜热通量(尤其是显热通量)相对很小,占净辐射量的比例分别约为0.2%和1.8%.阴雨天气,水温略高于河道上空的江北固定测点空气温度约3℃;净辐射量较小,在100W/m2左右波动.此时显热通量和潜热通量占净辐射量的比例分别约为9.5%和51.3%.晴朗天气太阳净辐射量绝大多数通过导热或透射的形式进入水体内部;阴雨天气,水面净辐射量的大部分又以对流传热传质的形式返回大气.
桃蚜对5种新烟碱类杀虫剂及氟啶虫胺腈抗性的快速检测方法
The rapid detection method for resistance to five neonicotinoid insecticides and sulfoxaflor in Myzus persicae

静静,史雪岩,高希武
- , 2017,
Abstract: 采用玻璃管药膜法,建立了以吡虫啉、啶虫脒、噻虫嗪、噻虫胺、烯啶虫胺5种新烟碱类杀虫剂及氟啶虫胺腈对桃蚜室内敏感品系(SN)的LC90值作为区分剂量,测定桃蚜对6种杀虫剂敏感性变化的方法,并与浸叶法测得的抗性水平进行了相关性分析,验证了利用区分剂量快速测定桃蚜田间种群对6种杀虫剂抗性水平的准确性。结果表明:6种杀虫剂对桃蚜室内敏感品系的LC90值分别为150.01、1 170.81、54.19、951.34、245.98及133.60 ng/cm2。在此区分剂量下,河南省驻马店地区桃蚜种群(ZM)的死亡率在82%~96%之间;河北省玉田地区甘蓝桃蚜种群(GL)的死亡率在35%~82%之间,桃树桃蚜种群(TS)死亡率在3%~30%之间。分析表明,在选定的区分剂量下,桃蚜田间种群的死亡率与其对杀虫剂的抗性水平呈负相关,相关系数在0.818 8~0.999 9之间。同时,通过相关性方程计算得到的江苏省南京地区桃蚜种群(NJ)对6种杀虫剂的理论抗性水平与实际检测所得抗性水平结果接近。因此,以玻璃管药膜法确定的吡虫啉、啶虫脒、噻虫嗪、噻虫胺、烯啶虫胺及氟啶虫胺腈对桃蚜室内敏感品系的LC90值作为区分剂量,通过测定桃蚜田间种群的死亡率,可以快速表征田间种群对6种杀虫剂的敏感性变化,从而对其抗性水平进行初步评估。
Bioassay method of residual film in glass tube was employed to determinate the LC90 values of Myzus persicae susceptible strain (SN) to six insecticides, including imidacloprid, acetamiprid, thiamethoxam, clothianidin, nitenpyram and sulfoxaflor. The LC90 values were then used as the diagnose doses for the detection of the sensitivity variations of M.persicae field populations to the six insecticides. Furthermore, the correlation analysis between the mortalities of M.persicae field populations under the diagnose doses of those six insecticides and the resistance levels obtained by leaf dipping bioassay were conducted. The accuracy of the tested resistance levels of M.persicae field populations to the six insecticides using the diagnose doses were verified. The results showed that the LC90 of SN strain to imidacloprid, acetamiprid, thiamethoxam, clothianidin, nitenpyram and sulfoxaflor, were 150.01, 1 170.81, 54.19, 951.34, 245.98 and 133.60 ng/cm2, respectively. Under the treatments of diagnose doses of the six insecticides, the mortality of field population from Zhumadian region of Henan Province (ZM) was between 82% and 96%, the mortality of field population collected from cabbage in Yutian region of Hebei Province (GL) was between 35% and 82%, and the mortality of population collected from peach in the same region (TS) was between 3% and 30%. The correlation analysis showed that the mortalities of M.persicae field populations under the established insecticides diagnose doses were negative correlated with their resistance levels to the six insecticides, with the correlation coefficient between 0.818 8 and 0.999 9. Meanwhile, the theoretical resistance levels of field population from Nanjing region of Jiangsu Province (NJ) to the six insecticides calculated by the correlation equations were close to the actual detected resistance levels. Therefore, through the bioassay method of residual film in glass tube, the LC90 values of the six insecticides to SN strain were established as the diagnose
伊洛河流域草本植物群落物种多样性
陈杰?,屹立?,卢训令?,丁圣彦?,苏思?,静静,李乾玺?
生态学报 , 2012,
Abstract: 生物多样性沿环境梯度的变化是生物多样性研究的重要内容,环境梯度包含了多种环境因子(海拔高度、水热条件、人类扰动等)的综合。以伊洛河流域草本植物群落为对象,沿河从入黄河口到河源地选取典型样地调查研究伊洛河流域草本植物群落物种多样性及其分布格局。结果表明:物种丰富度和shannon-wiener多样性指数沿河均稍呈"s"型曲线变化,不同群落类型中分布格局差别不大,各群落类型中的物种丰富度和多样性均呈现出中游丘陵山地交界区最高,上游河源区次之,下游平原地区最低的趋势;β多样性指数的变化趋势与α多样性较一致,总体上呈现出中游丘陵山地区物种更替速率较快,平原区更替较慢;在流域内上游河源地属于自然植被区,人为干扰较轻,具有较高的物种多样性,物种替代主要受物种的竞争扩散能力和生境条件的制约;在下游平原农业区,人类活动强烈,区域内以人工生态系统为主,物种组成简单,物种替代具有跳跃性的特征,主要受人类活动的制约;在中游从自然生态系统向农业生态系统的过渡区域,人类活动的扰动有一定的强度,导致该区域内自然分布种和伴人种混合生长,具有较高的物种多样性和较快的物种替代速率。总体上伊洛河流域草本植物群落物种多样性分布格局强烈的受到人类活动的影响,物种替代速率较高。
用分子信标作为粘贴串的DNA计算模型的逻辑门
Using Molecular Beacons as Paste Series Computing Model of a Logic Gate
 [PDF]

静静, 单静怡
Advances in Applied Mathematics (AAM) , 2014, DOI: 10.12677/AAM.2014.31005
Abstract:
近年来,随着DNA计算及DNA计算机研究的发展,运用粘贴模型和粘贴系统来实现布尔逻辑门已经成为DNA计算机研究的热点。而把分子信标作为粘贴串的一份子还未曾见到过,此篇论文用这样一种新的方法来实现逻辑门的DNA计算模型。该模型同时拥有以往普通粘贴模型的优点。它更易于操作和观察,使结果有更强的可靠性。由于分子信标本身所具有的高特异性和高灵敏度,逻辑门有了更直观的操作和检测。
In recent years, it has become a research focus of DNA computer to realize the Boolean logic gates by using DNA sticker model and paste system, with the research of DNA computing and DNA computer going on. But making the molecular beacon as part of the paste series has not been seen, and this paper realizes the DNA computing model of logic gates with such a new method. This model has all the advantages that the previous general sticker model has. Also it is easier to operate and observe, and has higher reliability of results. With high specificity and sensitivity of molecular beacon itself, the logic gate has a more intuitive operation and observation.
麦套花生氮素代谢及相关酶活性变化研究
, ,万书波, *,王才斌,李新国, ,静静,徐平丽
植物营养与肥料学报 , 2009, DOI: 10.11674/zwyf.2009.0224
Abstract: 大田条件下,以花生“花育22号”为材料,研究了麦套花生的氮素代谢及相关酶活性变化情况。结果表明,麦套花生根叶游离氨基酸、氮素平均含量及根系可溶性蛋白平均含量高于单作;而叶片可溶性蛋白平均含量则低于单作。与小麦共生期间,麦套花生根叶硝酸还原酶(NRase)活性、谷氨酸脱氢酶(GDH)活性、叶片谷氨酰胺合成酶(GS)活性及谷氨酸-丙酮酸转氨酶(GPT)活性(除播后25d)明显低于单作;整个生育期麦套花生根系GS平均活性及GPT活性高于单作花生。可见,花生苗期小麦遮荫对花生氮素代谢及酶活性有一定影响。
大黄用于治疗大鼠实验性黄疸的日服用次数初步研究
吕俊兰,付珊珊,静静,刘永,袁海龙,肖小河
中国中药杂志 , 2011,
Abstract: 目的:研究大黄用于治疗大鼠实验性黄疸(胆汁淤积型肝炎)时的日服次数,验证前期已建立以效应动力学为核心、成分药动学为辅佐,也即是基于PD-PK的中药日服用次数研究模式的正确性与可行性,并继续完善大黄日服用次数研究方法与模式。方法:采用4%ANIT造成大鼠高黄疸模型,48h后分别每日灌服大黄提取物3.6g·kg-11次、1.8g·kg-12次和1.2g·kg-13次,观察8h内胆汁流量变化;眼眶后静脉取血,用于测定其不同时间点的血清生化指标TBIL,ALT,ALP,AST,GGT值及大鼠血中移行成分大黄酸浓度。分别以生物效应值(胆汁流量、血清生物学指标)和血中移行成分含量为指标,得到各自时-效曲线和时-量曲线。综合分析时-量关系和时-效关系,制定大黄用于治疗大鼠实验性黄疸时合理的日服用次数。结果:每日给药2次时,8h内胆汁总量分别是每日给药1次、每日给药3次的1.56倍和1.7倍;而8h时TBIL值分别是每日给药1次和3次的23%,22%,ALT值分别是每日给药1次和3次的86%,65%,ALP值分别是每日给药1次和3次的50%,71%;AST,GGT值无显著影响;每日给药2次时,大黄酸血药浓度水平最高且能够较长时间维持较高水平,这可能正是大黄发挥显著药理作用的主要原因。结论:前期建立的以效为核心,成分药动学为辅助的方法用于研究中药的日服次数科学可行;大黄用于治疗胆汁淤积型肝炎(黄疸)时,以每日服用2次为佳。
中国农村儿童乙肝疫苗计划免疫实施现状分析
王镇,赵凯,汪洋,静静,张国杰,,王健
中国公共卫生 , 2012, DOI: 10.11847/zgggws2012-28-10-13
Abstract: ?目的对河北、江苏、海南、宁夏、黑龙江等5省农村≤15岁儿童乙肝疫苗首针及时接种、全程接种现状进行调查,分析中国农村儿童乙肝疫苗计划免疫的影响因素。方法采用多阶段随机抽样、概率与规模成比例抽样相结合的方法,在5省9个县32个村共抽取≤15岁儿童3502人,对其乙肝疫苗计划免疫情况及主要影响因素进行问卷调查。结果5省≤15岁儿童乙肝疫苗首针及时接种率和全程接种率分别为79.51%、94.6%;单因素分析表明,年龄、出生地点、家庭年收入等因素对首针及时接种率、全程接种率影响均有统计学意义(P=0.00);多因素logistic回归分析结果表明,儿童年龄与及时接种和全程接种均呈负相关,出生地点、家庭年收入等因素与其呈正相关;是否相信乙肝疫苗能有效预防乙肝是儿童乙肝疫苗首针及时接种的影响因素,是否听说过乙肝疫苗是儿童乙肝疫苗全程接种的影响因素。结论家庭经济状况、家人对乙肝疫苗的认知是影响儿童乙肝疫苗计划免疫实施的重要因素。
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