检索结果-南通市图书馆

Energy Management with Application to HVAC Systems Based on Bacterial Colony Chemotaxis Algorithm

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Management with Application to HVAC Systems Based on ...

第36届中国控制会议

作者： MA Kai yu yangqing HU Shubing YANG Jie LIU Zhixin School of Electrical Engineering Yanshan University Key Laboratory of System Control and Information Processing Ministry of EducationShanghai Jiao Tong University

This work addresses an energy management problem in smart grid with the relationship between the operating states and the energy consumption of the loads taken into *** energy management problem is modeled as a nonlinear optimization *** the *** operation-to-energy functions and the probability of exceeding the energy supply under forecast errors are ***,we devote to achieve the energy management of distributed heating,ventilation,and air conditioning（HVAC） systems and establish the consumers’ cost functions based on the predicted mean vote（PMV）thermal comfort *** bacterial colony chemotaxis（BCC） algorithm is adopted to seek the optimal temperature settings and the optimal energy supply for the consumers and the energy provider,***,the simulation results demonstrate that the BCC algorithm shows good convergence performance to seek the optimal solution and the demand is approximately equal to the energy supply with margin for reliability.

关键词： Energy management Forecast errors Heating ventilation and air conditioning(HVAC) Predicted mean vote(PMV) Bacterial colony chemotaxis(BCC)

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

装配式建筑进度计划缓冲及鲁棒性研究

建筑经济 2018年第2期39卷 33-39页

作者：陈伟余杨清周曼邹松武汉理工大学湖北武汉430070 武汉市建筑节能办公室湖北武汉430072

装配式建筑工程具有在构件生产、物流运输、现场装配等多维作业空间并行实施的特征,其工程进度网络计划复杂。为保证多维作业空间的工作协调有序进行,分别构建基于关键链技术的装配式建筑工程集中缓冲、分散缓冲进度计划;建立质量鲁棒... 详细信息

装配式建筑工程具有在构件生产、物流运输、现场装配等多维作业空间并行实施的特征,其工程进度网络计划复杂。为保证多维作业空间的工作协调有序进行,分别构建基于关键链技术的装配式建筑工程集中缓冲、分散缓冲进度计划;建立质量鲁棒性、解鲁棒性两类指标对计划的稳定性进行评价,并进行实证分析。结果表明:集中缓冲进度计划在质量鲁棒性方面优于分散缓冲进度计划;考虑工序开始时间稳定性的分散缓冲进度计划更有利于控制项目进度。

关键词：装配式建筑关键链技术集中缓冲分散缓冲鲁棒性

基于梯度下降和一致性的电网分布式经济调度算法

在线全文

学校读者我要写书评

暂无评论

中国科学：信息科学 2018年第10期48卷 1364-1380页

作者：马锴于洋庆朱善迎杨婕关新平燕山大学电气工程学院秦皇岛066004 上海交通大学电子信息与电气工程学院上海200240

本文针对电网中的经济调度问题,提出了基于梯度下降和一致性协议的分布式优化算法,以最小化总的发电成本.该算法不需要将全局信息传递给每条母线的控制单元,仅需要在相互连通的母线之间进行局部信息的交换以此来平衡电力的供应和需求.... 详细信息

本文针对电网中的经济调度问题,提出了基于梯度下降和一致性协议的分布式优化算法,以最小化总的发电成本.该算法不需要将全局信息传递给每条母线的控制单元,仅需要在相互连通的母线之间进行局部信息的交换以此来平衡电力的供应和需求.通过理论分析,得出可通过选择合适的步长和初值使该算法收敛到原问题的最优解,进而通过以IEEE 9母线系统为例的仿真证实了所提出的算法的有效性.

关键词：经济调度分布式算法梯度下降法一致性算法通信拓扑

在线全文

学校读者我要写书评

暂无评论

聚醚砜制膜液的相分离Ⅰ．三元体系

水处理技术 1996年第4期22卷 195-199页

作者：赵长生欧阳庆钟银屏乐以伦黄小华四川联合大学高分子材料系

本文对聚醚砜（ＰＥＳ）在不同溶剂和不同非溶剂中所构成三元体系的相分离进行研究。采用浊点滴定法测定了在常用溶剂和非溶剂中的浊点数据，溶剂对ＰＥＳ的溶解能力，依次为：甲酰胺＜二甲基亚砜＜Ｎ，Ｎ－二甲基甲酰胺＜Ｎ，Ｎ－二甲... 详细信息

本文对聚醚砜（ＰＥＳ）在不同溶剂和不同非溶剂中所构成三元体系的相分离进行研究。采用浊点滴定法测定了在常用溶剂和非溶剂中的浊点数据，溶剂对ＰＥＳ的溶解能力，依次为：甲酰胺＜二甲基亚砜＜Ｎ，Ｎ－二甲基甲酰胺＜Ｎ，Ｎ－二甲基乙酰胺＜Ｎ－甲基吡咯烷酮；以二甲基甲酰胺为溶剂，非溶剂的沉淀能力依次为：Ｈ２Ｏ＞丙三醇＞甲醇＞乙二醇＞乙醇＞丙二醇＞丙醇，线性浊点法能较好描述三元体系的浊点关系。这些研究为制膜浆液，尤其醇类作为添加剂制膜浆液的配制。

关键词：相分离聚醚砜三元制膜液

Zhu Xi:a pioneer of experimental biology

在线全文

学校读者我要写书评

暂无评论

Protein & Cell 2023年第9期14卷 629-631页

作者： yujing Qian Xiazhao yu yangqing Sun Qun Xie Ge Liang Gaiping Bai Teacher Education College Zhejiang Normal UniversityJinhua 321000China

Zhu Xi(朱洗,1900-1962)(Fig.1),one of the founders of cell biology and experimental biology in China,was bom in Linhai,Zhejiang Province in *** 1931,he obtained his doctorate in *** returning China,he devoted himself to toad reproduction *** the spirit of innovation and dedication to research,he had made marvelous contributions to China,especially in *** the same time,he put his patriotism into action,promoting the vigorous development of agriculture and other industries.

关键词： devoted pioneer himself

奎宁-杂多酸杂化催化剂催化H_2O_2为氧源的苯羟基化反应(英文)

在线全文

学校读者我要写书评

暂无评论

催化学报 2013年第11期34卷 2118-2124页

作者：赵萍萍周瑜刘阳庆王军南京工业大学化学化工学院材料化学工程国家重点实验室江苏南京210009

将奎宁与Keggin结构磷钼钒杂多酸结合制备出一种新颖的多相苯羟基化杂化催化剂,采用傅里叶变换红外光谱、紫外-可见光谱、X射线衍射、扫描电镜、热重、N2吸附-脱附和CHN元素分析等表征手段对催化剂进行了分析.结果表明,该催化剂是一种... 详细信息

将奎宁与Keggin结构磷钼钒杂多酸结合制备出一种新颖的多相苯羟基化杂化催化剂,采用傅里叶变换红外光谱、紫外-可见光谱、X射线衍射、扫描电镜、热重、N2吸附-脱附和CHN元素分析等表征手段对催化剂进行了分析.结果表明,该催化剂是一种具有较高比表面积和孔体积的半无定形有机杂多酸盐.在H2O2为氧源的苯羟基化反应中,杂化催化剂引导了液-固两相催化体系,表现出较高催化活性和重复使用稳定性.催化剂中奎宁与杂多阴离子间的氢键和电子相互作用赋予了其高熔点和难溶性,而高比表面积和因奎宁而改善的杂多阴离子的氧化还原性是其获得优异催化性能的主要原因.这为多相苯羟基化反应提供了一种新的且制备便捷的基于多金属氧酸盐的高效催化剂.

关键词：杂多酸多金属氧酸盐苯羟基化多相催化苯酚

Alteration of the respiratory microbiome in COVID-19 patients with different severities

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2022年第3期49卷 258-261页

作者： Zhengtu Li Yinhu Li Linghua Li Xiaoneng Mo Shaoqiang Li Mingzhou Xie yangqing Zhan Ye Lin Zhun Li Min Xie Zhaoming Chen Airu Zhu Ruosu Ying Le yu Jin cun Zhao Shuai Cheng Li Weiping Cai Feng Ye State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory DiseaseGuangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityNational Center for Respiratory MedicineGuangzhouGuangdong 510120China Department of Computer Sciences City University of Hong KongHong Kong 999077China Guangzhou Eighth People's Hospital Guangzhou Medical UniversityGuangzhouGuangdong 510060China Beijing yuanShengKangTai(ProtoDNA)Genetech Co.Ltd. Beijing100190China

Coronavirus disease 2019(COVID-19) is rampant worldwide and has affected more than 215 countries and regions. According to the World Health Organization's report, there were 226,018,919 COVID-19 cases and 4,654,898 deaths as of March 14, 2021, although300,002,228 vaccines have been administered globally. COVID-19patients have different clinical phenotypes and can be divided into asymptomatic, normal, mild, severe, and critical patients.

关键词： patients respiratory clinical

Where are large old trees in China

在线全文

学校读者我要写书评

暂无评论

Where are large old trees in China

Longitudinal virological changes and underlying pathogenesis in hospitalized COVID-19 patients in Guangzhou,China

中国植物学会第十六次全国会员代表大会暨85周年学术年会

作者： Jiajia Liu Wenjing Yang yuan Ren yangqing Luo Lei Zhong Chuping Wu Mingjian yu College of Life Sciences Zhejiang University Key Laboratory of Poyang Lake Wetland and Watershed Research Ministry of EducationJiangxi Normal University Zhejiang Academy of Forestry

Large old trees have received worldwide interests in recent years as they are keystone ecological structures that provide vital ecosystem services to human ***,there has been little empirical evidence on the distribution pattern of large old trees in human dominated *** we used 703,155 large trees that are ≥ 100 years in 198 Chinese cities to map their distribution patterns（richness,density and maximum tree age） and to explore the relative contributions of natural environmental（*** and topography） and anthropogenic variables（*** density,GDP per capita and city age）.We found that China has a low stem density of large old trees: 0.36 stem/*** of these trees were reported to be less than 300 years *** best fit models demonstrated that mean annual rainfall is the most important driver of species diversity and density of scattered large old *** influence is a double-edged sword for the conservation of large old *** density of clustered trees,which are mostly remnants of ancient woods,is negatively influenced by human population and rural *** contrast,stem density of scatter trees,which are mostly distributed in human dominated landscapes,is positively correlated with population *** age is the only driver of the maximum tree *** results have provided the first empirical study on the distribution pattern of large old trees in *** conclude that distribution pattern of large old trees in the human dominated landscapes is the consequence of the joint effects of environmental variables and anthropogenic *** of large old trees should consider climate change and the promotion of large old tree protection culture.

关键词： Large trees ancient trees biodiversity anthropogenic factors scattered trees traditional culture

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2021年第12期64卷 2129-2143页

作者： Zhengtu Li Yinhu Li Ruilin Sun Shaoqiang Li Lingdan Chen yangqing Zhan Mingzhou Xie Jiasheng Yang Yanqun Wang Airu Zhu Guoping Gu Le yu Shuaicheng Li Tingting Liu Zhaoming Chen Wenhua Jian Qian Jiang Xiaofen Su Weili Gu Liyan Chen Jing Cheng Jincun Zhao Wenju Lu Jinping Zheng Shiyue Li Nanshan Zhong Feng Ye State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory DiseaseGuangzhou Institute of Respiratory Healththe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510120China Beijing yuanShengKangTai(ProtoDNA)Genetech Co. Ltd.Beijing 100190China Department of Pulmonary and Critical Care Medicine Guangdong Second Provincial General HospitalGuangzhou 510317China Department of Computer Science City University of Hong KongHong Kong 999077China

Prolonged viral RNA shedding and recurrence of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)in coronavirus disease 2019(COVID-19)patients have been ***,the clinical outcome and pathogenesis remain *** this study,we recruited 43 laboratory-confirmed COVID-19 *** found that prolonged viral RNA shedding or recurrence mainly occurred in severe/critical patients(P<0.05).The average viral shedding time in severe/critical patients was more than 50 days,and up to 100 days in some patients,after symptom ***,chest computed tomography gradually improved and complete absorption occurred when SARS-CoV-2 RT-PCR was still positive,but specific antibodies ***,the viral shedding time significantly decreased when the A1,430G or C12,473T mutation occurred(P<0.01 and FDR<0.01)and increased when G227A occurred(P<0.05 and FDR<0.05).High IL1R1,IL1R2,and TNFRSF21 expression in the host positively correlated with viral shedding time(P<0.05 and false discovery rate<0.05).Prolonged viral RNA shedding often occurs but may not increase disease *** viral RNA shedding is associated with viral mutations and host factors.

关键词： SRAS-CoV-2 longitudinal virological changes viral genome host gene expression