检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

暴雨干扰下地铁系统脆弱性形成机制

中国安全科学学报 2022年第6期32卷 193-199页

作者：赵露薇王青娥中南大学土木工程学院湖南长沙410075

为有效预防暴雨极端天气给地铁系统运营造成的极大风险,基于文献调研和专家访谈,从人、设备、环境、安全管理和应急5个方面,建立暴雨干扰下地铁系统脆弱性指标体系,得到20个影响因子;运用解释结构模型-交叉影响矩阵相乘法(ISM-MICMAC),... 详细信息

为有效预防暴雨极端天气给地铁系统运营造成的极大风险,基于文献调研和专家访谈,从人、设备、环境、安全管理和应急5个方面,建立暴雨干扰下地铁系统脆弱性指标体系,得到20个影响因子;运用解释结构模型-交叉影响矩阵相乘法(ISM-MICMAC),构建暴雨干扰下地铁系统脆弱性形成机制模型,论证各影响因子的驱动力和依赖度;以郑州地铁为例进行分析并提出应对策略。结果表明:地铁系统脆弱性可划分为5个层级;教育培训、规章制度是最深层次的影响因素,控制和调度这2种因素能够缓解、调节其他因素带来的不利影响;工作人员的业务水平和安全管理意识是中间层脆弱性因素;其余因素都处于ISM的最上层,是直接影响因素。

关键词：暴雨干扰地铁系统脆弱性形成机制解释结构模型(ISM) 交叉影响矩阵相乘法(MICMAC)

Photothermal properties of Cu@polycarbonate composites with strong localized surface plasmon resonances

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第9期17卷 8513-8520页

作者： Fengyi Wang Jiangling He Junshan Hu Zhihui Chen Yumeng Shi qing-Hua Xu SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore College of Materials Science and engineering Sichuan UniversityChengdu 610065China

Copper is relatively low cost and highly abundant compared with the well-studied noble metals such as gold and ***,the poor plasmonic and high susceptibility towards oxidation limit the study of its optical properties and applications as ***,copper nanoparticles@polycarbonate(Cu@PC)composites were prepared by using a facile one-step solvothermal *** Cu@PC composites have strong localized surface plasmon resonances(LSPR)due to that the PC shell can induce the particles to form many-particles system with different particle numbers,which not only lead to overlap and hybridize of the LSPR modes,but also shift the LSPR away from the interband transitions,and the PC layer also prevents the oxidation of Cu *** photothermal conversion efficiency of Cu@PC composites reaches 41.1%under 808 nm continuous wave(CW)laser irradiation which is higher than previously reported Cu nanomaterials that have been ***,the composites also have high photothermal ***,interfacial evaporator is prepared by assembling the Cu@PC composites on scouring sponge as light absorption layer which has>92.8%absorption in entire solar spectrum *** seawater evaporation rate is 3.177 kg·m^(-2)·h^(-1)with a e_(evaporator)/e_(water)of *** high evaporation rate interfacial evaporator with low cost,simple,and scalable approach shows great application value in the field of photothermal evaporation.

关键词： Cu nanoparticles localized surface plasmon resonances(LSPR) photothermal interfacial evaporation

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

酸感受离子通道亚基1a的研究进展

中国药理学通报 2007年第6期23卷 701-704页

作者：靳庆娥郑建全军事医学科学院毒物药物研究所北京100850

酸感受离子通道是一类由细胞外酸化所激活的阳离子通道,在胞外H+浓度增高时离子通道开放,形成H+门控电流。目前,已发现7个ASICs亚基,ASIC1a是其中之一。研究表明,ASIC1a在突触传递及其可塑性的调节、空间学习记忆、痛觉传导和缺血性脑... 详细信息

酸感受离子通道是一类由细胞外酸化所激活的阳离子通道,在胞外H+浓度增高时离子通道开放,形成H+门控电流。目前,已发现7个ASICs亚基,ASIC1a是其中之一。研究表明,ASIC1a在突触传递及其可塑性的调节、空间学习记忆、痛觉传导和缺血性脑损伤等生理和病理过程中起重要作用。该文对有关ASIC1a研究的最新进展作一综述,以增进对ASICs生物学功能和病理作用的了解。

关键词：酸感受离子通道1a亚基缺血酸中毒

effect of nursing on postoperative respiratory function and mental health of lung cancer patients

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第5期12卷 922-930页

作者： Xiang Yang Dan Yin Shi-qing Chen Department of Rehabilitation The First People's Hospital of Jiangxia DistrictWuhan(Union Jiangnan Hospital Huazhong University of Science and Technology)Wuhan 430200Hubei ProvinceChina Department of Intensive Care The First People's Hospital of Jiangxia DistrictWuhan(Union Jiangnan Hospital Huazhong University of Science and Technology)Wuhan 430200Hubei ProvinceChina Department of Neurology The First People's Hospital of Jiangxia DistrictWuhan(Union Jiangnan Hospital Huazhong University of Science and Technology)Wuhan 430200Hubei ProvinceChina

BACKGROUND Both pulmonary rehabilitation training and psychological care have been shown to have a positive effect on the postoperative recovery of patients with lung ***,few studies have combined the two to explore their combined ***,this study aimed to investigate the effects of pulmonary rehabil-itation training combined with psychological care on postoperative respiratory function and mental health in lung cancer *** To investigate effect of nursing on postoperative respiratory function and mental health of lung cancer *** 122 cases of lung cancer patients who underwent surgical treatment in our hospital and were treated in our department from January 2022 to April 2023 were selected and randomly divided into the control group and observation *** control group performed the routine care *** obser-vation group was given pulmonary rehabilitation training and psychological care based on conventional nursing *** expiratory volume,forced vital *** ventilatory volume(MVV)in one second was measured,and the patient's 6-min walking distance and dyspnoea index scale were used to assess the patient's respiratory *** Connor-Davidson resilience scale(CD-RISC),self-rating anxiety scale(SAS),and self-rating depression scale(SDS)were used to evaluate the mental health of the *** There was no difference between the two groups regarding age,gender,education level,surgical procedure,type of pathology,and treatment(P>0.05).After treatment,MVV,6-min walking distance,toughness,strength,optimism,and total CD-RISC scores were significantly higher in the observation group(Pea scores,SAS,and SDS scores were substantially lower in the control group compared to the observation group(Pehabilitation training combined with psychological care for patients after lung cancer resection could improve lung function,enhance daily activities,e

关键词： Pulmonary rehabilitation training Psychological care Lung cancer Postoperative care Respiratory function

Insight of enriched basalts into the nature and evolution of mantle lithosphere beneath craton margins

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

Science China earth Sciences 2024年第10期67卷 3128-3142页

作者： Hong-Kun DAI Jianping ZHeNG qing XIONG Linlin HU Xiang ZHOU State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences China University of Geosciences

Refractory lithospheric deep roots are the cornerstone for the prolonged stability of cratons and mantle xenoliths are normally the key targets for study on the evolution of such deep roots. In regions with few mantle xenoliths, the basalts enriched in radiogenic isotopic compositions due to marked lithospheric mantle contribution are crucial to unmask the lithospheric mantle evolution based on a comprehensive study involving petrology, geochemistry and thermodynamic modelling. Here, the early Cretaceous basalts from the northwest North China Craton with few mantle xenoliths are taken as an example to show the significance of enriched basalts on the study of lithospheric mantle. These basalts are characterized by high silica and alkali contents（SiO2=45.8–59.8 wt.%, K2O+Na2O=4.81–9.88 wt.%）, arc-type trace-element patterns and enriched radiogenic isotope compositions(e.g., εNd=-2.64–-12.88,87Sr/86Sr=0.7063–0.7093). The TiO2and FeO（total） contents are higher than those of natural and experimental melts from refractory mantle peridotite but comparable to those of partial melts of fertile mantle *** high contents of fluid-loving elements（e.g., Rb and Ba） suggest source metasomatism by aqueous fluids. Combined with thermodynamic modelling and regional tectonic history, these enriched basalts likely record simultaneous decompression melting of asthenosphere and low-extent melting of thin and fertile lithospheric mantle fluxed by aqueous fluids from the subducted Paleo-Asian oceanic slab. The newly unmasked lithospheric mantle under the western NCC contrasts with the coeval thick and refractory one supporting the eastern NCC, and highlights that the craton destruction, especially the loss of its ancient refractory mantle root, should take place in a diachronous manner related to the craton-girded subduction episodes. Our study illustrates the potential of enriched basalts to recover the nature and evolution of mantle lithosphere beneath craton margins and associated

关键词： enriched basalts Lithospheric mantle Northwest North China Craton Tectonic histories early Cretaceous

同方期刊数据库

On-Chip Sub-Picometer Continuous Wavelength Fiber-Bragg-Grating Interrogator

在线全文

学校读者我要写书评

暂无评论

Photonic Sensors 2024年第1期14卷 73-84页

作者： Yuan ZHUANG Jun ZOU Jiqiang ZHANG Lu ZHANG Jiahe ZHANG Leixin MeNG qing YANG Research Center for Humanoid Sensing Zhejiang LabHangzhou 311121China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 310014China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310058China

Miniaturized fiber-Bragg-grating(FBG)interrogators are of interest for applications in the areas where weight and size controlling is important,e.g.,airplanes and aerospace or in-situ *** ultra-compact high-precision on-chip interrogator is proposed based on a tailored arrayed waveguide grating(AWG)on a silicon-on-insulator(SOI)*** on-chip interrogator enables continuous wavelength interrogation from 1544 nm to 1568 nm with the wavelength accuracy of less than 1 pm[the root-mean-square error(RMSe)is 0.73 pm]over the whole wavelength *** chip loss is less than 5 *** 1×16 AWG is optimized to achieve a large bandwidth and a low noise level at each channel,and the FBG reflection peaks can be detected by multiple output channels of the *** fabricated AWG is utilized to interrogate FBG sensors through the center of gravity(CoG)*** validation of an on-chip FBG interrogator that works with sub-picometer wavelength accuracy in a broad wavelength range shows large potential for applications in miniaturized fiber optic sensing systems.

关键词： Fiber optic sensing on-chip interrogator arrayed waveguide grating center of gravity

effects of acid-rock reaction on physical properties during CO_(2)-rich industrial waste gas(CO_(2)-rich IWG)injection in shale reservoirs

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

Petroleum Science 2024年第1期21卷 272-285页

作者： Yi-Fan Wang Jing Wang Hui-qing Liu Xiao-Cong Lv Ze-Min Ji National Key Laboratory of Petroleum Resources and engineering China University of PetroleumBeijing102249China MOe Key Laboratory of Petroleum engineering China University of PetroleumBeijing102249China Research Institute of exploration and Development PetroChinaBeijing100083China

"Carbon peaking and carbon neutrality"is an essential national strategy,and the geological storage and utilization of CO_(2)is a hot issue ***,due to the scarcity of pure CO_(2)gas sources in China and the high cost of CO_(2)capture,CO_(2)-rich industrial waste gas(CO_(2)-rich IWG)is gradually emerging into the public's ***_(2)has good adsorption properties on shale surfaces,but acidic gases can react with shale,so the mechanism of the CO_(2)-rich IWG-water-shale reaction and the change in reservoir properties will determine the stability of geological ***,based on the mineral composition of the Longmaxi Formation shale,this study constructs a thermodynamic equilibrium model of water-rock reactions and simulates the regularity of reactions between CO_(2)-rich IWG and shale *** results indicate that CO_(2)consumed 12%after reaction,and impurity gases in the CO_(2)-rich IWG can be dissolved entirely,thus demonstrating the feasibility of treating IWG through water-rock *** IWG inhibits the dissolution of CO_(2),the optimal composition of CO_(2)-rich IWG is 95%CO_(2)and 5%IWG when CO_(2)geological storage is the main *** contrast,when the main goal is the geological storage of total CO_(2)-rich IWG or impurity gas,the optimal CO_(2)-rich IWG composition is 50%CO_(2)and 50%*** the CO_(2)-rich IWG-water-shale reaction,temperature has less influence on the water-rock reaction,while pressure is the most important ***2 has the greatest impact on water-rock reaction in *** minerals,clay minerals such as illite and montmorillonite had a significant effect on water-rock *** overall reaction is dominated by precipitation and the volume of the rock skeleton has increased by 0.74 cm3,resulting in a decrease in shale porosity,which enhances the stability of CO_(2)geological storage to some *** the reaction between CO_(2)-rich IWG-water-shale at simulated temperatures and pressures,precipitation

关键词： CO_(2)-rich industrial waste gas Geological storage Acid-rock reaction Shale Geochemical modelling

客货共线铁路弹性支承块式无砟轨道结构安全与稳定性分析

在线全文

学校读者我要写书评

暂无评论

铁道学报 2018年第5期40卷 131-136页

作者：赫永峰王青娥尤瑞林中南大学土木工程学院湖南长沙410083 中国铁道科学研究院铁道建筑研究所北京100081

在对国内相关标准所规定限值总结的基础上,建立车辆-轨道空间耦合动力学计算模型,重点研究分析不同线路条件、不同类型列车运行工况下弹性支承块式无砟轨道的安全性和稳定性。结果表明,弹性支承块式无砟轨道结构在不同运营条件下(客车... 详细信息

在对国内相关标准所规定限值总结的基础上,建立车辆-轨道空间耦合动力学计算模型,重点研究分析不同线路条件、不同类型列车运行工况下弹性支承块式无砟轨道的安全性和稳定性。结果表明,弹性支承块式无砟轨道结构在不同运营条件下(客车最高速度200km/h、货车最大轴重27t):列车运行各项安全性指标及线路轨距动态变化量均在标准规定的限值以内;客车的横向平稳性指标最大值为1.85、垂向平稳性指标最大值为1.88,货车的横向平稳性指标最大值为2.23、垂向平稳性指标最大值为3.42,客车和货车平稳性指标满足1级的标准,平稳性良好。综合计算分析结果,弹性支承块式无砟轨道结构可适用于不同类型客货共线铁路运营条件。

关键词：客车与货车共线运行弹性支承块式无砟轨道车辆-轨道耦合动力学模型安全与稳定性

在线全文

学校读者我要写书评

暂无评论

太行抗日根据地女性婚姻家庭待遇及其冲突

安徽史学 2016年第3期 91-98页

作者：杜清娥岳谦厚山西大学近代中国研究所山西太原030006

抗战全面爆发之后,随着太行抗日根据地建立、巩固与发展,边区政府颁布了一系列新婚姻法规及其支持性政策,从而使得农村女性婚姻家庭与两性关系呈现出与以往不同的样貌。男女平等思想的倡导提高了妇女在婚姻家庭中的地位、婚姻自由政策... 详细信息

抗战全面爆发之后,随着太行抗日根据地建立、巩固与发展,边区政府颁布了一系列新婚姻法规及其支持性政策,从而使得农村女性婚姻家庭与两性关系呈现出与以往不同的样貌。男女平等思想的倡导提高了妇女在婚姻家庭中的地位、婚姻自由政策的推行解除了妇女在婚姻问题上的痛苦,而频仍发生的家庭纠纷与日益增多的解约离婚案件亦造成了根据地各级政府在婚姻家庭管理上的混乱。尽管新婚姻法令的目标在于根除社会陋习并建立符合新民主主义革命诉求的新型男女关系和婚姻家庭关系,但中共对根据地的婚姻管理不得不立足于法制与现实的平衡之中。

关键词：太行抗日根据地女性婚姻家庭虐待解约离婚