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烟台师范学院学报（自然科学版） 1998年第1期14卷 37-39页

作者：宋中民王照明烟台大学数学与信息科学系山东工业大学数理系

给出了灰色恩格尔模型（ＧＥＭ）的建模方法，从而对经济系统中的灰色供求关系给予准确的描述及预测．

关键词：灰色系统恩格尔函数恩格尔模型 GEM 经济系统

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大陆、台湾信息管理人才培养模式之比较

图书情报工作 1997年第6期 46-49页

作者：郑建明南京大学信息管理学系

对大陆、台湾信息管理专门人才培养的现状及其相关问题进行了比较研究，指出改进大陆、台湾信息专业教育的途径。

关键词：信息管理专业教育

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无需量化因子的模糊直接逆控制

系统仿真学报 2003年第1期15卷 116-118,134页

作者：陈得宝刘暾东李淮江淮北煤炭师范学院物理系淮北235000 中国科学技术大学自动化系合肥230026

针对模糊控制中量化因子难以确定以及无先验知识情况下模糊控制器结构和参数难以得到问题,提出了一种无量化因子和不依赖专家经验知识的模糊直接逆控制方案,克服了传统模糊规则基的得到过分依赖专家知识的弱点。控制器的规则基不采用规... 详细信息

针对模糊控制中量化因子难以确定以及无先验知识情况下模糊控制器结构和参数难以得到问题,提出了一种无量化因子和不依赖专家经验知识的模糊直接逆控制方案,克服了传统模糊规则基的得到过分依赖专家知识的弱点。控制器的规则基不采用规则的三角形形式,而是采用与实际更加接近的无规则三角形,规则基的得到不依赖已知经验,而是根据系统输入输出信息,利用进化规划离线对控制器规则基的结构和参数同时优化。实际控制中利用优化的规则基对系统进行控制,实时控制算法的运算时间仅为一组规则基的计算时间,大大加快了系统的响应速度,仿真结果验证了算法的有效性。

关键词：量化因子模糊直接逆控制模糊控制进化规划数学模型

我国城市居民消费心理预期的结构及其影响因素研究

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心理科学 2003年第3期26卷 426-429页

作者：石文典原献学马进瑜宁夏大学教育科学学院银川750002 海南师范学院教育系海口571158

本研究采用自编<消费心理预期结构问卷》对1097名城市居民进行了研究,结果表明:1.《消费心理预期结构问卷》具有较高的信度和效度;2.消费心理预期由预测经历、信息量、价格知觉水平、信息来源与渠道,以及预测依据等5个因素构成;3.现阶段... 详细信息

本研究采用自编2.消费心理预期由预测经历、信息量、价格知觉水平、信息来源与渠道,以及预测依据等5个因素构成;3.现阶段,我国城市居民消费心理预期的一般特点是预期的准确性不高,预期的理性化程度尚有待提高;4.影响消费心理预期结构的主要因素是消费者的性别、年龄、学历、职业和所在城市等变量。

关键词：城市居民消费心理预期结构影响因素《消费心理预期结构问卷》信度效度预测经历信息量价格知觉水平信息来源预测依据年龄学历职业性别

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PKI技术与应用

新乡师范高等专科学校学报 2003年第5期17卷 24-26页

作者：马建红牛丽萍首都师范大学信息工程学院，北京100037 新乡师范高等专科学校计算机科学系，河南新乡453000

PKI是基于公钥加密体制的提供公钥加密和数字签名服务的系统或平台，主要由认证中心(CA)、数字证书库、密钥备份及恢复系统、证书撤销处理系统和应用程序接121(API)组成。其中CA是PKI的核心环节，具有证书发放、更新、撤销和验证等功能... 详细信息

PKI是基于公钥加密体制的提供公钥加密和数字签名服务的系统或平台，主要由认证中心(CA)、数字证书库、密钥备份及恢复系统、证书撤销处理系统和应用程序接121(API)组成。其中CA是PKI的核心环节，具有证书发放、更新、撤销和验证等功能。PKI技术已在很多领域得到了广泛的应用。

关键词： PKI技术 CA 加密解密私钥数字签名服务公钥基础设施技术

Studies on college English Writing Teaching Based on Blog

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Studies on College English Writing Teaching Based on Blog

Mapping a Female Sterile Gene locus in Wheat (Triticum Aestivum L.)

2012 National Conference on information Technology and Computer science

作者： Zefen Zhang Foreign Language department Henan Institute of science and Technology Xinxiang Henan,china

Different from traditional Internet communication manner,the Blog has its own advantages and *** can increase communication between teachers and students,expand the field of study,the blog used in the teaching of English writing helps improve students’ English writing ability,students should be encouraged to use the blog wisely to improve their English writing.

关键词： blog advantages and weaknesses application English writing teaching

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Mapping a Female Sterile Gene locus in Wheat (Triticum Aesti...

THEORETICAL STUDY ON TEMPERATURE AND PRESSURE COEFFICIENTS OF ULTRASONIC SPEED IN ORGANIC LIQUIDS

中国遗传学会第八次代表大会暨学术讨论会

作者： Dou B.~1 Hou B.~1 Zhu X.~1 Yang J.~1 Wang F.~2 Xu H~3 Ni Z~4 Sun Q~4 1.Institute of Plant Biotechnology,Jiangsu Key Laboratory of Eco-Agricultural Biotechnology around Hongze Lake,Huaiyin teachers college,Huai’an city,223301,china, 2.Agronomy college,Xinjiang Agricultural University,Urumqi,223301,china 3.college of Agriculture & Biotechnology,Zhejiang University,Hangzhou,310029,china 4.department of Plant Genetics and Breeding,china Agricultural University,Beijing 100094, china

Many kinds of male sterile lines were found in past decades which let a hermaphrodite species be a gynodioecy,whereas a female sterile line let the gynodioecy be a ***,a new female sterile mutant was found in wheat at Urumqi(china)with one feature of automatically restoring its fertility in later sowing *** understand the genetic mechanism of the female *** F2 population derived from a hybrid cross between an elite variety(8901,normal fertility)and the female sterile line(XND 126)was planted at Haian experimental station in autumn of 2004,two same component F2 populations were planted at Haian and Urumqi experimental station separately by tillers split in autumn of *** female fertility was showed by seed set under fully pollinated condition,SSR marker was used to check the population genotype,data were analyzed by the gene mining software Mapmaker 3.0 and *** linkage disequilibrium(r2)between gene locus and SSR marker was calculated in a population of female sterile line and 260 varieties after its’structure *** distribution of the female fertility in F2 was bimodal and skewed toward the normal parent of *** on the information of 8 molecular markers in two linkage groups and of phenotype data in 2005,a major gene locus taf1 (triticum aestivum female fertility)was identified,which was tightly linked with marker Xbarc95 on chromosome 2DS,with genetic effects accounting for 21.54% and 13.64% of phenotype variation showed by modified domestic and international method *** 2007 results,23 markers in 5 linkage groups were involved in analysis of mining the gene locus taf1,it was more tightly linked with marker Xgdm35,accounting for 41.20% and 30.77% of phenotype variation showed also by the method *** on the result of linkage analysis,the linkage disequilibrium was studied,the result was showed that,high degree of LD were found between the gene locus taf1 and marker Xbarc35,Xbarc95 within a

关键词： wheat female sterility QTL mapping Linkage analysis association analysis

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Chinese science Bulletin 1989年第15期34卷 1262-1266页

作者：仝杰董彦武仝天魁 Institute of Applied Acoustics Shaanxi Teachers University Xi'an Physics department Shaanxi Teachers University Xi'an

Ⅰ. INTRODUCTION The study of ultrasonic speed in organic liquid is not only an effective method to gage macro thermodynamic properties of the liquid, but also a valuable way to understand micro information of the liquid in molecular physics. Many experiments showed that ultrasonic speed in organic liquid reduced in value with the increasing temperature and rose with the increasing pressure of the liquid. But up to now,

关键词： ultrasonic speed temperature coefficient pressure coefficient organic liquid