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基于CD-BSMOTE的D-S证据融合变压器故障诊断
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作者 鲁玲 高诚 +3 位作者 熊威 龚康 马辉 张鑫 《水电能源科学》 北大核心 2024年第5期192-196,共5页
针对变压器油中溶解气体数据集不均衡特性对故障诊断结果的影响,提出一种基于清除临界点改进的边界合成少数类过采样算法均衡数据集和Pearson冲突距离改进D-S证据融合的变压器故障诊断模型。首先,对少数类样本进行均衡化处理,根据K-mean... 针对变压器油中溶解气体数据集不均衡特性对故障诊断结果的影响,提出一种基于清除临界点改进的边界合成少数类过采样算法均衡数据集和Pearson冲突距离改进D-S证据融合的变压器故障诊断模型。首先,对少数类样本进行均衡化处理,根据K-means聚类结果清除处于临界位置的样本;其次,搭建梯度提升树、随机森林、BP神经网络的故障诊断模型,实现变压器故障初步诊断;接着引入Pearson冲突距离改进D-S证据融合模型,实现诊断结果的融合决策;最后,经实际算例分析,诊断精确率达到92.65%。结果表明,所建模型能有效解决数据不平衡对诊断结果的影响,提高故障诊断精度。 展开更多
关键词 故障诊断 油中溶解气体分析 边界合成少数类过采样 Pearson冲突距离 D-s证据融合
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Evaluation Indicator System of Low-carbon Landscape in Residential Areas: A Case Study of Garden Plant Landscape 被引量:2
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作者 Xiaogang CHEN Qi LUO 《Asian Agricultural Research》 2013年第2期65-67,71,共4页
Garden plant landscape is one of the main contents of low-carbon landscape design in residential areas. From the basic theory of garden plant landscaping, we put forth five principles and ideas concerning the building... Garden plant landscape is one of the main contents of low-carbon landscape design in residential areas. From the basic theory of garden plant landscaping, we put forth five principles and ideas concerning the building of evaluation indicator system of garden plant landscape, to establish the indicator system with ecological quality, recreational function and aesthetic effect as three layers. According to the characteristics of evaluation system, we use qualitative and quantitative integration method, coupled with analytic hierarchy process (AHP) and expert consulting method, to determine the weight of various factors. And we use fuzzy comprehensive evaluation method to test this indicator system, so as to provide a theoretical basis for the research on evaluation indicator system of low-carbon landscape. 展开更多
关键词 residential areas Low-carbon LANDsCAPE INDICATOR s
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化粪池对城市排水系统水质水量及H_(2)S排放的影响
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作者 颜山脊 湛宇辰 +3 位作者 方蔼琳 敖良根 王胜 潘伟亮 《应用化工》 CAS CSCD 北大核心 2024年第4期869-872,共4页
选择重庆市主城区住宅小区实地调研,对住宅小区化粪池进出口的污水水质、流量、H_(2)S等指标进行实测,分析取消化粪池对排水系统和周边环境的综合影响。结果表明:(1)从流量看,无论是工作日还是周末化粪池前后流量相差不大,取消化粪池对... 选择重庆市主城区住宅小区实地调研,对住宅小区化粪池进出口的污水水质、流量、H_(2)S等指标进行实测,分析取消化粪池对排水系统和周边环境的综合影响。结果表明:(1)从流量看,无论是工作日还是周末化粪池前后流量相差不大,取消化粪池对进入市政管网的污水总量影响不大;(2)从水质看,化粪池对COD、BOD_(5)、SS有较高削减率,且COD/TN的平均下降率为43%,COD/TP的平均下降率为38%;(3)从H_(2)S看,化粪池内H_(2)S平均浓度为8.20 mg/m^(3),污水管道内H_(2)S平均浓度为2.70 mg/m^(3),取消化粪池可有效降低可被人体感官明显察觉的臭气逸散的风险,对改善小区整体环境有积极效益。 展开更多
关键词 化粪池 排水系统 居住区污水 H_(2)s
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Construction Strategies of Public Activity Spaces in Residential Districts Based on Children's Activities
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作者 XIAO Lu LIN Hui ZHANG Minglin 《Journal of Landscape Research》 2016年第2期49-51,54,共4页
The relationship between children's activities and public spaces was analyzed and summarized from three perspectives, namely, children's demands on outdoor activity spaces, factors infl uencing children's ... The relationship between children's activities and public spaces was analyzed and summarized from three perspectives, namely, children's demands on outdoor activity spaces, factors infl uencing children's behavior requirements, and planning strategies. The paper provided theoretical support for exploring the relationship between children's activities and public spaces, and proposed planning strategies for improving use effi ciency of urban outdoor public spaces and facilities, and creating public spaces capable of meeting children's psychological needs. 展开更多
关键词 Children’s activities residential district spatial form Construction strategies
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Alzheimer’s Disease among American Minority Populations: An Eco­logical Exploratory Study
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作者 Maria LaQuaglia Marina Celly Martins Ribeiro de Souza Carolina Marques Borges 《Journal of Geriatric Medicine》 2021年第1期12-18,共7页
A significant public health concern with regards to increasing rates of Alzheimer’s is that it disproportionately affects minority groups in the United States.The present ecological exploratory study uses secondary a... A significant public health concern with regards to increasing rates of Alzheimer’s is that it disproportionately affects minority groups in the United States.The present ecological exploratory study uses secondary aggregate data from the fifty United States in the year of 2019.The pur­pose of this study was to address the disparities in Alzheimer’s in minori­ty populations in the US and explore associated factors.The“minority”populations considered were African American and Hispanic populations,and the“majority”population was referred to as“white”.The data were extracted from the United States Census Bureau,the CDC National Cen­ter for Health Statistics,and the Behavioral Risk Factor Surveillance Sys­tem(BRFSS)Dataset.The prevalence rates of Alzheimer’s disease are greatest in both older Hispanic(12.2%)and African Americans(13.8%),compared to older whites(10.3%)in the investigated time period.Our results showed that being over 65 years old(p=.009),with a below-av­erage($62,843)median household income(p=.024),history of stroke(p=.029),and being a part of the Hispanic population(p=.036),were significantly associated with Alzheimer’s mortality rates in the United States.By identifying disparities in access to Alzheimer’s healthcare and at-risk communities,more comprehensive intervention strategies can be developed to promote change and advocate for more Alzheimer’s educa­tion and resource allocation for minority populations. 展开更多
关键词 Alzheimer’s disease DEMENTIA minority populations MORTALITY stroke Over-65
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小区内性侵未成年人犯罪防治研究——以S省C市为分析样本
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作者 余长江 《河南警察学院学报》 2024年第2期24-34,共11页
小区是未成年人成长生活的重要场所,小区法治环境的形成对未成年人的健康成长至关重要。通过分析S省C市发生在小区内的性侵未成年人犯罪发现,其案件来源主要为父母报案。在未考虑性侵未成年人案件犯罪黑数的情况下,统计数据反映出的犯... 小区是未成年人成长生活的重要场所,小区法治环境的形成对未成年人的健康成长至关重要。通过分析S省C市发生在小区内的性侵未成年人犯罪发现,其案件来源主要为父母报案。在未考虑性侵未成年人案件犯罪黑数的情况下,统计数据反映出的犯罪形势仍然较为严峻。小区内性侵未成年人犯罪因犯罪对象特殊、犯罪发生区域特定,在被害人、作案人、作案地点、作案方式等方面呈现出明显特征。小区内有利于犯罪实施的外部条件和被害人较强的被害性等要素之间相互作用导致了性侵犯罪的发生。情境犯罪预防理论因其对犯罪情境的关注及主动预防的姿态,与小区内性侵未成年人犯罪预防具有较强的契合性。从情境犯罪预防理论视角出发构建该类犯罪防控体系,应主要从增加犯罪难度、提高犯罪风险、减少犯罪刺激三个方面入手。 展开更多
关键词 小区 性侵未成年人犯罪 熟人作案 情境犯罪预防
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Public Space Demand and Adaptive Behavior of Residents in Old Residential Area of Ancient City: Based on Qingyi Garden of Beirenyi Hutong in Kaifeng
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作者 Shu Zhao Zhe Wang 《Journal of World Architecture》 2021年第6期24-33,共10页
The majority of the literature on the transformation of cultural promotion space in old residential areas in the United States and abroad is written from the top-down perspective of God,such as architects,planners,dev... The majority of the literature on the transformation of cultural promotion space in old residential areas in the United States and abroad is written from the top-down perspective of God,such as architects,planners,developers,and even government officials,and only a few of them examine the designer’s work from the perspective of aborigines.To sample life and gain insight into human nature,find another means to be as near to the public as possible,listen to the voice of users,and conduct an in-depth examination of the freestyle works altered by the old residential districts through the“people’s architectural planner.” 展开更多
关键词 Old residential areas Public space People’s building planner Freestyle works Micro update Empirical data
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Building a Comprehensive Well-off Society in Yunnan's Minority Areas A Study of the Prediction on the Differences in Life Quality Indexes
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作者 Yunhong GONG Lijiao WANG 《International Journal of Technology Management》 2015年第10期100-105,共6页
关键词 小康社会 民族地区 生活质量 云南 预测 指标差 通用汽车 灰色理论
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Building a Comprehensive Well-off Society in Yunnan's Minority Areas A Study of the Prediction on the Differences in Economic Development Indexes
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作者 Yunhong GONG Fang RAO 《International Journal of Technology Management》 2015年第9期116-122,共7页
关键词 少数民族地区 经济发展 小康社会 预测 云南 指标差 灰色理论 差异分析
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Genetic Analysis of Major and Minor Gene(s) Resistant to Stripe Rust in Important Resource Wheat Line Jinghe891-1 被引量:1
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作者 XU Shi-chang, ZHANG Jing-yuan, ZHAO Wen-sheng, WU Li-ren ZHANG Ji-xin and YUAN Zhen-dong( Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100094 , P. R . China Institute of Crop Science, Beijing Academy of Agricultural and Forestry Science, Beijing 100089 , P. R . China ) 《Agricultural Sciences in China》 CAS CSCD 2002年第4期364-369,共6页
Inheritance of line Jinghe891-l resistant to pathotype of Puccinia striiformis in two patterns of temperature (Normal: day 18℃ /night 10℃ , High: day 24℃ /night 15℃ )was studied in this paper. The results showed t... Inheritance of line Jinghe891-l resistant to pathotype of Puccinia striiformis in two patterns of temperature (Normal: day 18℃ /night 10℃ , High: day 24℃ /night 15℃ )was studied in this paper. The results showed that there were at least two pairs of dominant major genes and one pair of recessive minor genes in Jinghe 891-1. The two pairs of major genes that conferred resistance to CY31 were allelic or linked closely with resistance gene in Jubilejna Ⅱ , Kangyin655 and T. spelta Album. They were novel resistance genes and were inherited in a repeated or independent mode. The minor genes, which could modify the major genes, were sensitive to temperature and conferred resistance to all pathotypes of Puccinia striiformis in China. It is recommended that this line can be used as an important resource stock. 展开更多
关键词 WHEAT Wheat resistance to Puccinia striiformis Major gene(s) minor gene(s) Genetic analysis
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Two Customs of China's Ethnic Minorities
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《China & The World Cultural Exchange》 1997年第5期47-47,共1页
关键词 Two Customs of China’s Ethnic minorities
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Regional Autonomy of China's Ethnic Minorities
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作者 XIONG LEI 《The Journal of Human Rights》 2002年第4期30-32,共3页
The aggregate population of ethnic minorities has never accounted for more than 9 percent of China’s total, currently approaching 1.3 billion. Yet their development and prosperity have always been high on the agenda ... The aggregate population of ethnic minorities has never accounted for more than 9 percent of China’s total, currently approaching 1.3 billion. Yet their development and prosperity have always been high on the agenda of the leaders of the People’s Republic. One of the first things Chinese leaders did after New China was founded in 1949 was to conduct large-scale studies to identify the country’s ethnic groups and name them properly, based on scientific 展开更多
关键词 MORE Regional Autonomy of China’s Ethnic minorities THAN
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Develop China's Great West——A major move to improve human rights of minorities
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作者 BY YANG FAREN Author: former president and research fellow of the Xinjiang Academy of Social Sciences and now member of the expert advisory group for Xinjiang. 《The Journal of Human Rights》 2004年第5期15-18,共4页
The Great Western China Development Drive launched by China’s Central Authorities at the turn of the century is not only a strategic move to narrow the development gap between the eastern and western parts of the cou... The Great Western China Development Drive launched by China’s Central Authorities at the turn of the century is not only a strategic move to narrow the development gap between the eastern and western parts of the country an harmonious development of the national economy but also a major move for narrowing the development gap among different ethnic groups and further improving human rights of the people, especially minorities. 展开更多
关键词 A major move to improve human rights of minorities Develop China’s Great West than
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White Paper:China’s Policies toward Ethnic Minorities Well Fit National Conditions and Win Support from All Nationalities
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作者 XINHUA CORRESPONDENT 《The Journal of Human Rights》 2010年第1期36-38,共3页
The State Council Information Office published on September 27, 2009, a white paper entitled China' s Policies toward Minorities and Common Prosperity and Development of All Nationalities. The white paper says that t... The State Council Information Office published on September 27, 2009, a white paper entitled China' s Policies toward Minorities and Common Prosperity and Development of All Nationalities. The white paper says that the policies well fit the national conditions and are correct. They are instrumental to promoting harmonious coexistence of all nationalities that work with one heart and one mind and in mutual cooperation; they have helped open up a good national situation characterized by economic development, political stability, 展开更多
关键词 White Paper s Policies toward Ethnic minorities Well Fit National Conditions and Win support from All Nationalities than
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China's Ethnic Minorities and Their Own Languages
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作者 LI JINFANG 《The Journal of Human Rights》 2006年第1期24-27,共4页
China has 56 ethnic groups, who speak a total of 120 languages. Chinese, China's official language, is spoken by the Han, Hui and Manethnic groups, and all the other ethnic groups have their own languages. About 15 m... China has 56 ethnic groups, who speak a total of 120 languages. Chinese, China's official language, is spoken by the Han, Hui and Manethnic groups, and all the other ethnic groups have their own languages. About 15 million people speak the Zhuang lan- guage, outnumbering speakers of any other ethnic minority language. Quite a few ethnic minority groups have two or even more spoken languages. Though belonging to the same ethnic group, the ethnic Yaos who live in different places speak four different languages -the Mian, Bunu, Lajia and Yangbu. The ethnic Jingpos also have four different spoken languages the Jingpo, Zaiwa, Langsu and Leqi. 展开更多
关键词 China’s Ethnic minorities and Their Own Languages
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On China's Protection of Delinquent Minors'Rights
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作者 YAN JIA the Crime Prevention Research Institute under the Ministry of Justice LIU TONGQIANG Dezhou Prison in Shandong Province 《The Journal of Human Rights》 2012年第1期28-29,共2页
At the end of June 2011, China had 29 reformatories for delinquent minors, where 17,149 convicts aged 18 oryounger were serving their terms. These facilities have persistently followed the policy of "combining punish... At the end of June 2011, China had 29 reformatories for delinquent minors, where 17,149 convicts aged 18 oryounger were serving their terms. These facilities have persistently followed the policy of "combining punishment with redemption, with redemption taken as the main objective" as well as a policy that calls for the integration of "educa- tion, persuasion and redemption" Good results have been achieved thanks to implementation of these policies, es- pecially since the People's Republic of China Law on the Protection of Minors was promulgated in September 1991. 展开更多
关键词 On China’s Protection of Delinquent minors’Rights
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小麦抗源Holdfast和Flinor抗条锈病主效、微效基因的遗传分析 被引量:16
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作者 仝淑玫 蔺瑞明 +1 位作者 何月秋 徐世昌 《中国农业科学》 CAS CSCD 北大核心 2006年第11期2243-2249,共7页
【目的】Holdfast、Flinor是国际上已经报道在生产上具有持久抗条锈性表现的小麦品种,在成株期对中国条中29、30、31号小种表现出免疫或近免疫的抗性水平。【方法】本文采用常规杂交分析和潜育期变温处理方法,分别在常温(昼18℃/夜10℃... 【目的】Holdfast、Flinor是国际上已经报道在生产上具有持久抗条锈性表现的小麦品种,在成株期对中国条中29、30、31号小种表现出免疫或近免疫的抗性水平。【方法】本文采用常规杂交分析和潜育期变温处理方法,分别在常温(昼18℃/夜10℃)和高温(昼24℃/夜15℃)两种温域下,对其主效和微效抗条锈病基因进行遗传分析。【结果】品种Flinor中至少含有1显1隐2对主效和2对温敏微效抗条锈基因,Holdfast中至少含有2对显性主效和2对温敏微效抗条锈基因。主效基因均互补控制其抗条锈性,微效基因呈隐性,具累加效应,受高温诱导表达,控制中度抗性水平。【结论】Flinor和Holdfast均含有全生育期主效抗条锈病基因和对高温敏感的微效抗条锈基因,建议在抗病育种中加以有效利用,并提供了温敏微效抗条锈基因的快捷检测方法。 展开更多
关键词 小麦 抗条锈 主效基因 微效基因 遗传分析
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甘蓝型油菜(Brassica napus L.)千粒重性状遗传体系分析 被引量:16
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作者 戚存扣 盖钧镒 +4 位作者 傅寿仲 浦惠明 张洁夫 陈新军 高建琴 《作物学报》 CAS CSCD 北大核心 2004年第12期1274-1277,共4页
通过遗传差异较大的 2个甘蓝型油菜 (BrassicanapusL )纯系亲本组合 (HSTC14×宁油 7号 )衍生后代的世代家系群体分析 ,应用主基因 +多基因家系世代联合分离分析方法研究油菜千粒重的遗传体系。结果表明 ,甘蓝型油菜HSTC14×宁... 通过遗传差异较大的 2个甘蓝型油菜 (BrassicanapusL )纯系亲本组合 (HSTC14×宁油 7号 )衍生后代的世代家系群体分析 ,应用主基因 +多基因家系世代联合分离分析方法研究油菜千粒重的遗传体系。结果表明 ,甘蓝型油菜HSTC14×宁油 7号组合千粒重遗传体系系由一对主基因 +多基因构成 ,主基因中只有加性效应 (d =0 10 6 2 ) ,不存在显性效应 ;多基因存在加性 ([d]=0 2 2 2 8)和显性效应 ,但显性效应为负值 ([h]=- 0 2 80 0 )。表明该组合千粒重主要由主基因加性效应和多基因效应决定 ,但无杂种优势。F2∶3家系群体主基因遗传力为 83 39% ,多基因遗传力为 11 71%。HSTC14×宁油 7号组合千粒重的改良可能受主基因无显性效应 ,多基因显性效应为负值的制约。 展开更多
关键词 BRAssICA NAPUs L. 千粒重 遗传体系 主基因%PLUs%多基因
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基于T-S和AIFNN的旧住宅性能评价研究 被引量:6
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作者 高宇波 韩卫成 胡川晋 《太原理工大学学报》 北大核心 2017年第3期296-302,共7页
在我国旧住宅资源日益增多的情况下,如何把握其性能的衰退程度和可利用程度,为旧住宅下一步的改造再利用提供科学的指导,是目前旧住宅研究面临的关键问题。基于旧住宅问题现状,从技术、经济、社会3个方面构建旧住宅性能评价指标体系,包... 在我国旧住宅资源日益增多的情况下,如何把握其性能的衰退程度和可利用程度,为旧住宅下一步的改造再利用提供科学的指导,是目前旧住宅研究面临的关键问题。基于旧住宅问题现状,从技术、经济、社会3个方面构建旧住宅性能评价指标体系,包含环境与规划、功能与空间、设备于设施、结构与安全等4个方面的内容;利用Takagi-Sugeno(T-S)直觉模糊推理实现不确定信息的量化表达,构建了基于自适应直觉模糊神经网络(adaptive intuitionistic fuzzy neural network,AIFNN)的旧住宅性能评价模型;结合仿真样本与实证案例,分析验证了模型的可行性及有效性。评价结果运用到旧住宅的市场实践中,为下一步的再利用提供科学的量化技术支持。 展开更多
关键词 住宅性能评价 旧住宅 T-s模糊推理 自适应直觉模糊神经网络
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基于GIS的独龙族居民点的空间分布 被引量:6
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作者 杨恒喜 沈树梅 史正涛 《林业调查规划》 2010年第2期14-19,共6页
利用ArcGIS软件提取了研究区DEM的高程、坡度、坡向、起伏度等信息与国家1∶25万基础地理信息数据库提供的居民点、水源信息进行空间叠加分析,得出云南特有民族——独龙族居民点的空间分布与高程、坡度、坡向、起伏度、水源的定量关系,... 利用ArcGIS软件提取了研究区DEM的高程、坡度、坡向、起伏度等信息与国家1∶25万基础地理信息数据库提供的居民点、水源信息进行空间叠加分析,得出云南特有民族——独龙族居民点的空间分布与高程、坡度、坡向、起伏度、水源的定量关系,揭示了自然因素对本区居民的影响程度,为人们更好地了解独龙族所处的独特地理环境提供了依据. 展开更多
关键词 居民点 空间分布 独龙族 ARCGIs
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