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Search Results: 1 - 10 of 3069 matches for " 卞小林 "
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典型地物微波特性知识库的设计与实现
小林,邵芸,张风丽,符喜优
国土资源遥感 , 2015, DOI: 10.6046/gtzyyg.2015.04.29
Abstract: 针对雷达遥感图像解译困难、应用门槛高,严重制约微波遥感应用的深度与广度这一困境,提出构建典型地物微波特性知识库,对微波遥感模型、基础测量数据、雷达遥感图像、解译标志、先验知识与应用示范等进行科学组织和集成,并基于浏览器/服务器(browser/server,B/S)结构实现数据共享与信息表达。研究表明,知识库的构建能为微波遥感理论基础与应用研究提供模型、数据与专家知识等一体化支持。
Effects of grain size change on landscape pattern indices of Hefei City.
空间粒度变化对合肥市景观格局指数的影响

徐 丽,晓庆,小林,张庆国,刘 琳
应用生态学报 , 2010,
Abstract: Based on the land use map of Hefei in 2002, and by using ArcView software and Fragstats 3.3 spatial analysis program, this paper studied the change characteristics of selected 22 landscape pattern indices of Hefei under effects of different grain size, and analyzed the fitting functions and variation coefficients of partial landscape indices. The results showed that with the grain size increased from 10 to 100 m, the selected indices displayed different change trend, illustrating that the change of grain size had obvious effects on landscape indices. The effects of the grain size could be classified as 4 kinds of situation, i.e., overall rise, overall drop, less change, and no regulation change. The response curves of landscape pattern indices to grain size were fitted by quadratic function, cubic function, power function, and linear function, respectively. For the 1:50000 land use map of Hefei, the suitable range of grain size for computing and analyzing landscape indices was 15-35 m.
空间粒度变化对合肥市景观格局指数的影响
徐丽,晓庆,小林,张庆国**,刘琳
应用生态学报 , 2010,
Abstract: 基于合肥市2002年土地利用图,利用arcview软件和景观格局分析程序fragstats3.3,选择22个景观格局指数,探讨了合肥市景观格局指数随不同粒度的变化特征,并对部分景观指数的拟合函数和变异系数进行了分析.结果表明:在10~100m粒度范围内,各景观格局指数随粒度增加表现出不同的变化趋势,说明空间粒度变化对景观格局指数具有明显的影响;所选用的22个景观格局指数的粒度效应可划分为总体上升、总体下降、变化不大、无变化规律4种情况;部分景观指数随粒度变化的响应曲线可分别用二次函数、三次函数、幂函数、线性函数进行拟合;对于合肥市1∶50000土地利用图而言,进行景观格局指数分析的适宜粒度范围在15~35m.?
深部急倾斜煤层偏压巷道支护参数优化研究
郑朋强,陈卫忠,孟祥军,小林,李伟清,景强
岩土力学 , 2014,
Abstract: 深部急倾斜煤层由于受特殊的地质结构和高地应力影响,煤层巷道开挖后易出现地层错动、垮塌的特点,施工中冒顶、底臌现象异常突出,巷道支护极其困难。通过对新集三矿-700m煤探巷道进行现场勘查与试验,针对该急倾斜软岩巷道变形非对称性,底臌严重、地层错动的破坏特点,提出了可缩性u型钢全断面封闭支护和非对称性预应力锚杆(索)支护的全新支护方案,通过大型有限元软件abaqus建立数值分析模型,与原支护方案进行了对比分析。研究表明,采用改进支护方案巷道底臌位移量减小了66%,最大拉应力从0.58mpa减小到0.38mpa,塑性区较原方案更小,支护结构受力更加均匀。其结果可为同类地质条件的巷道支护设计提供一定参考。
罗布泊“大耳朵”成因的体散射特性模拟与分析
高志宏,邵芸,宫华泽,小林,谢酬,蔡爱民,万紫,王国军
地球物理学报 , 2012, DOI: 10.6038/j.issn.0001-5733.2012.03.020
Abstract: 根据SAR信号对干燥地表的穿透性能,在对罗布泊湖盆区域复杂散射机制深入分析的基础上,结合野外考察和实验室测量的数据,利用双层散射结构模型对湖盆区域的微波散射特性进行描述,并对次地表稳定沉积物的体散射分量进行模拟.为了对模型进行验证,本文利用Cloude极化分解方法将ALOSPALSAR数据进行散射机制的分解,并以体散射贡献量作为标准数据,与模型模拟的结果进行对比,得到的水平和垂直极化方式的均方根误差分别为1.62%和1.68%,证明了模型的可用性和有效性.同时,对模型的相关参数进行扩展分析,结果表明,次地表稳定沉积物是罗布泊古湖盆演化结果的直接反映,沉积物的含盐量是罗布泊"大耳朵"特征形成的根本原因.
杜衡的抗过敏成分
如濂,谢强敏,小林真子,淺井满子,成瀬義和,贵志豐和
药学学报 , 1990,
Abstract: 从马兜铃科植物杜衡(asarumforbesiimaxin)的醋酸乙酯提取物中分得七个成分,经光谱分析和化学反应鉴定为3s-苯甲酰氧-2s-羟基-2-异丙基丁酸甲酯(ⅰ);2r-苯甲酰氧异戊酸甲酯(ⅱ);2r-肉桂酰氧异戊酸甲酯(ⅲ);2r-胡椒酰氧异戊酸甲酯(ⅳ);榄香素(ⅴ);反式细辛脑(ⅵ);亚油酸(ⅶ)。化合物ⅰ,ⅱ,ⅲ和ⅳ为新化合物,分别命名为杜衡素(asarumin)a,b,c和d。其中ⅰ,ⅱ,ⅲ和ⅶ对大鼠被动皮肤过敏具有抑制作用。
局部θ加细空间
Locally θ Refinable Spaces
 [PDF]

小霞
Pure Mathematics (PM) , 2011, DOI: 10.12677/pm.2011.12011
Abstract: 在θ 加细的基础上定义了三种局部θ 加细性,给出了三者等价的充分条件,分别讨论了它们的一些性质,结果表明θ 加细空间某些好的性质在相应的局部θ加细空间中仍成立,从而将θ 加细空间的理论进行了推广,使覆盖性质理论更加丰富。
Three kinds of locally θ refinable spaces are defined. A sufficient condition on their equivalence is given and their properties are discussed respectively. Some good properties in θ refinable spaces are extended to locally θ refinable spaces. The theory of θ refinable space is expanded again, so covering theory is made more abundant.
以学生为本,构建和谐的育人环境——以西南石油大学受助贫困生为例
Student-Oriented, Building Harmonious Education Environment——Case Study of Poor Students Aided in Southwest Petroleum University
 [PDF]

小强, 马旭
Advances in Education (AE) , 2013, DOI: 10.12677/AE.2013.32012
Abstract:

“以学生为本”,构建和谐的育人环境,体现了学校全心全意为学生服务的根本宗旨和促进学生成长成才的根本要求。校园文化生活是在社会潮流与变革的影响下以学生为主体、教师为辅体的校园活动的集合。开展丰富多彩的校园文化生活,有助于提高大学生综合素质。借助学校、家庭以及自身的力量,构建立体的教育网络,形成强大的育人合力,构建和谐的育人环境,全员育人、全方位育人、全过程育人。
Student-oriented, it reflects that the school serves students wholeheartedly for the fundamental purpose and promotes the students’ growth for a basic requirement to build the harmonious educational environment. Under the influence of social trends and changes, campus culture life is the aggregation of campus activities participating or organized by students as the main and teachers as the secondary. That organizing rich and colorful campus culture life can help to improve college students’ comprehensive quality. With the aid of school, family and their own strength, the construction of the three-dimensional education network will form a powerful force, a harmonious education environment and recognize all-people education, all-round education as well as whole-process education.

PGRP作为小细胞肺癌肿瘤标志物的临床价值与检测方法
The Clinical Application and Detection Methods of Small Cell Lung Cancer Tumor Marker: Pro-Gastrin Releasing Peptide
 [PDF]

楚振宇,小林
World Journal of Cancer Research (WJCR) , 2014, DOI: 10.12677/WJCR.2014.42003
Abstract:

前胃泌素释放肽(pro-gastrin releasing peptide, PGRP)是一种新型小细胞肺癌(SCLC)肿瘤标志物。大量研究证明其在诊断与鉴别诊断SCLC方面较其他肿瘤标志物有更良好的表现,在早期筛查、治疗监测、预后评价、复发预测等方面也有一定价值,与其他标志物联合检测可以进一步提高诊断准确性。本文对PGRP作为SCLC肿瘤标志物的临床应用价值及检测方法做一综述,探讨进一步研究方向,以期对临床诊断和治疗提供技术支持。
Progastrin releasing peptide (PGRP) is a new type of small cell lung cancer (SCLC) tumor markers. Numerous studies have demonstrated its better performance compared with other tumor markers in the diagnosis of SCLC, and considerable value in early screening, treatment evaluating, prognosis prediction and progression monitoring. Moreover, combined use of PGRP with other tumor markers may possess higher diagnostic accuracy than any alone does. Here we review the new progresses in the clinical application of PGRP as the SCLC tumor marker, and discuss the future directions.

颠覆男权传统的话语——论西方女性主义批评三大学派
小林
浙江大学学报(人文社会科学版) , 2001,
Abstract: 西方女性主义批评在营造自己的理论过程中,通过对哲学、社会学、心理学、人类学等学科的借鉴、批判、改造,形成多元化的理论格局。其中最主要的学派是马克思主义女性主义批评、精神分析女性主义批评、解构主义女性主义批评。从纵向看,这些学派表明了女性主义批评的发展脉络;从横向看,则体现了女性主义批评的总体特征。女性主义批评的理论走向是和后现代主义相融合,并在不断的解构和建构中发展自身的理论。
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