检索结果-南通市图书馆

Gradient layered MXene/Fe3O4@CNTs/TOCNF ultrathin nanocomposite paper exhibiting effective electromagnetic shielding and multifunctionality

引用

Nano Research 2024年第9期17卷 8233-8242页

作者： zhengkun ma Jingzong He Shilin Liu Xiaoxuan Qie Meiheng Gan Ruonan Cheng Qilin Wu malcolm Xing State Key Laboratory for Modification of Chemical Fibers and Polymer materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China College of Chemistry and Chemical Engineering Donghua UniversityShanghai 201620China Department of Mechanical Engineering University of ManitobaWinnipegMB R3T 2N2Canada

As wearable electronic devices are rapidly developing,there is an urgent need for lightweight,flexible,and ultrathin multifunctional electromagnetic interference(EMI)shielding ***,the flexible ultrathin paper that combines efficient shielding and multifunctional integration remains a considerable ***,a novel MXene/Fe_(3)O_(4)@CNTs/TOCNF(MCT,MXene=transition metal carbide/carbonitride,CNTs=carbon nanotubes,TOCNF=TEMPO-oxidized cellulose nanofiber,TEMPO=2,2,6,6-tetramethylpiperidine-1-oxyl radical)nanocomposite paper with a multilayer electromagnetic gradient structure and electromagnetic dual losses was successfully prepared by a simple filtration *** from effective gradient design and adjusting the proportion of TOCNF,the composite paper(only 18μm)exhibits outstanding shielding effectiveness(SE)of 66 dB in the X-band,ultrahigh thickness-specific SE and surface-specific SE values of 3300 dB·mm-1 and 31,428 dB·cm^(2)·g^(-1)***,dehydroxylation treatment improves MCT paper's hydrophobicity,environmental stability,and mechanical strength,expanding its range of ***,the highly efficient Joule heating properties and hydrophobicity provide MCT additional de-icing *** also simulated the electromagnetic shielding effects of MCT composite paper,which was applied in *** study documents an innovative and intriguing material combination,providing a simple and effective manufacturing strategy for developing EMI shielding *** paper is highly suitable for outdoor portable or wearable electronic devices and has significant application potential in humid/severe cold environments.

关键词： cellulose fiber thin papers nanocomposites electromagnetic interference(EMI)shielding

来源：

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

糖尿病患者凝血四项联合血脂检验的作用评估

引用

系统医学 2024年第5期9卷 45-48页

作者：黄凯吉增军马正坤泰州市第二人民医院检验科江苏泰州225500

目的研究在糖尿病患者中应用凝血四项联合血脂检验的意义。方法选取2022年1月—2023年6月泰州市第二人民医院收治的43例糖尿病患者纳入观察组,根据有无血管病变将观察组患者分为A组(有血管病变,n=21)以及B组(无血管病变,n=22),并选取同... 详细信息

目的研究在糖尿病患者中应用凝血四项联合血脂检验的意义。方法选取2022年1月—2023年6月泰州市第二人民医院收治的43例糖尿病患者纳入观察组,根据有无血管病变将观察组患者分为A组(有血管病变,n=21)以及B组(无血管病变,n=22),并选取同期的43名健康体检者纳入参考组。各组均进行凝血四项和血脂检验,对比不同小组的凝血四项和血脂检验结果。结果观察组纤维蛋白原(Fibrinogen,FIB)水平、凝血酶时间(Thrombin Time,TT)、凝血酶原时间(Prothrombin Time,PT)、部分凝血活化酶时间(Activated Partial Thromboplastin Time,APTT)分别为(4.51±0.62)g/L、(13.17±0.94)s、(10.51±0.80)s、(28.52±4.04)s,与参考组比较,差异有统计学意义(t=13.321、22.009、10.562、4.108,P均<0.05)。观察组低密度脂蛋白胆固醇(Low-Density Lipoprotein Cholesterol,LDL-C)、总胆固醇(Total Cholesterol,TC)、三酰甘油(Triglyceride,TG)、高密度脂蛋白胆固醇(High Density Lipoprotein Cholesterol,HDL-C)水平与参考组比较,差异有统计学意义(P均<0.05)。A组FIB水平高于B组,TT、PT、APTT水平低于B组,差异有统计学意义(P均<0.05);A组的HDLC水平低于B组,TC、TG、LDL-C水平高于B组,差异有统计学意义(P均<0.05)。结论糖尿病患者凝血四项联合血脂检验有着重要价值,可以为临床诊治提供有力支持。

关键词：糖尿病凝血四项血脂检验

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

GSZ Formula Enhances Sleep Quality:Exploring Its Active Ingredients and Mechanism Using a Network Medicine Approach

引用

Clinical Complementary Medicine and Pharmacology 2024年第1期4卷 36-43页

作者： Airong Ren Mingxuan ma Yongyin Liang Yarong Wang zhengkun Li Yahui Liu Qing Fan Guozhen Cui School of Bioengineering Zhuhai Campus of Zunyi Medical UniversityZhuhai 519000GuangdongChina Basic Medical Science Department Zhuhai Campus of Zunyi Medical UniversityZhuhai 519000GuangdongChina

Background:Sleep is essential for maintaining human health,and insomnia is a widespread *** Chinese medicine(TCM)has been used for centuries to treat sleep disorders,with fewer reported side effects compared to conventional ***:This study seeks to investigate the sleep-promoting effects of the GSZ formula,which comprisesγ-aminobutyric acid(GABA),Schisandrae Chinensis Fructus(Wuweizi in Chinese),and Ziziphi Spinosae Semen(Suanzaoren in Chinese).In addition,this study aims to explore the active ingredients and potential mechanisms underlying the sleep-enhancing effects of the ***:The impact of GSZ on sleep was evaluated using two models,the complete sleep model and the sub-threshold sleep *** were randomly divided into five groups and orally administered GSZ solution(0.33 g/kg/day or 0.99 g/kg/day),positive drug diazepam(2.50 mg/kg)or a control solution for 30 ***-sis model was established in mice using pentobarbital *** duration and incidence were measured by recording when the righting reflex of mice disappeared for more than 1 *** and dopamine(DA)levels in mouse brain tissue were measured using ELISA *** ingredients of the GSZ formula were identified using mass spectrometry,and the targets of these ingredients and disease-related genes were retrieved from public databases.A network medicine approach was used to calculate the shortest path between ingredient targets and disease-related *** expression levels of potential proteins,such as Akt,p-Akt,GSK-3β,and p-GSK-3β,were analyzed using Western blotting based on the predicted ***:GSZ significantly prolonged sleep duration and enhanced the sleep rate in mice(Pmay be the most crucial active ingredients for sleep *** blotting analysis

关键词： Sleep quality Ziziphi spinosae semen Schisandrae chinensis fructus γ-aminobutyric acid Network medicine

来源：

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

考量用电负荷的居民阶梯电价优化构想

引用

价格理论与实践 2024年第1期 193-198,215页

作者：王征坤马静叶泽刘晓雪罗尉潘俊杰国网廊坊供电公司长沙理工大学经济与管理学院国网冀北电力有限公司

近年来,居民用电负荷占比逐渐增大,居民用电负荷增长明显高于用电量增长。在此种情况下,完善居民阶梯电价政策以节约电力变得更为紧迫。一是在新能源占比较大的情况下,节约电力能够带来更大的经济效益;二是节约电力可以减少电力投资,优... 详细信息

近年来,居民用电负荷占比逐渐增大,居民用电负荷增长明显高于用电量增长。在此种情况下,完善居民阶梯电价政策以节约电力变得更为紧迫。一是在新能源占比较大的情况下,节约电力能够带来更大的经济效益;二是节约电力可以减少电力投资,优化资源配置。本文针对目前居民阶梯电价政策没有直接反映节约用电负荷需求或电力的问题,梳理总结我国居民阶梯电价的实施情况,分析我国现行居民阶梯电价存在的节约电量效果逐渐减弱、按电量划分档次没有反映更加重要的节约电力目标问题,探索性提出以居民用电负荷为标准的居民阶梯电价方案。新方案将两部制电价与单一电量电价有机结合起来,按照居民用电负荷划分阶梯电量电价档次并递增,通过价格信号引导居民节约用电,提高居民用电及电力系统负荷率,促进电力资源优化配置。并以某省为例,验证本文提出居民阶梯电力电价方案的合理性和可操作性。基于此,应将目前居民阶梯电价分档标准从用电量调整为居民用电最大负荷,完善居民用电智能电表等技术条件,以减轻电力系统负担,实现节约用电的目标。

关键词：居民用电负荷阶梯电价分档标准

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

颅脑损伤行标准外伤大骨瓣开颅手术治疗的效果研究

引用

科技与健康 2024年第5期3卷 33-36页

作者：魏正坤贵州省毕节市金沙县人民医院贵州毕节551800

分析颅脑损伤行标准外伤大骨瓣开颅手术治疗的效果。选取贵州省毕节市金沙县人民医院2021年5月—2023年3月收治的66例颅脑损伤患者为研究对象,将患者分为常规组(n=33)和研究组(n=33),对常规组患者实施常规骨瓣开路手术治疗,对研究组患... 详细信息

分析颅脑损伤行标准外伤大骨瓣开颅手术治疗的效果。选取贵州省毕节市金沙县人民医院2021年5月—2023年3月收治的66例颅脑损伤患者为研究对象,将患者分为常规组(n=33)和研究组(n=33),对常规组患者实施常规骨瓣开路手术治疗,对研究组患者实施标准外伤大骨瓣开颅手术治疗,对两组患者颅内压、治疗有效率、并发症发生率、昏迷程度、神经功能缺损情况进行观察。结果显示,术后1天、术后3天、术后7天研究组患者颅内压要明显优于常规组(P<0.05);研究组患者治疗总有效率高于常规组(P<0.05);研究组患者并发症总发生率低于常规组(P<0.05);研究组患者GCS评分、NIHSS评分均优于常规组(P<0.05)。研究发现,针对颅脑损伤患者行标准外伤大骨瓣开颅手术治疗可以有效降低患者颅内压,改善患者昏迷程度和神经功能,提升临床治疗总有效率,患者术后并发症发生率较低,值得临床推广和应用。

关键词：颅脑损伤标准外伤大骨瓣开颅手术治疗效果

来源：

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

An organosulfide-based energetic liquid as the catholyte in highenergy density lithium metal batteries for large-scale grid energy storage

引用

Nano Research 2022年第7期15卷 6138-6147页

作者： zhengkun Xie Zeying Yang Xiaowei An Xiyan Yue Jiajia Wang Shusheng Zhang Weihua Chen Abuliti Abudula Guoqing Guan College of Chemistry Zhengzhou UniversityZhengzhou 450001China Graduate School of Science and Technology Hirosaki UniversityAomori 036-8560Japan Energy Conversion Engineering Laboratory Institute of Regional Innovation(IRI)Hirosaki UniversityAomori 030-0813Japan Department of Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024China

Development of catholytes with long-cycle lifespan,high interfacial stability,and fast electrochemical kinetics is crucial for the comprehensive deployment of high-energy density lithium metal batteries(LMBs)with *** this study,a lithiated 2-mercaptopyridine(2-MP-Li)organosulfide was synthesized and used as the soluble catholyte for the first *** the routine working mode,the LMB using this 2-MP-Li catholyte possessed high capacity retention of 55.4%with a Coulombic efficiency(CE)of near 100%after 2,000 *** a cell system was fully filled with 2-MP-Li catholyte,it yielded a double capacity with 15%improvement in the capacity retention,corresponding to 0.0182%capacity decay per cycle,as well as excellent rate performance even at 6 ma·cm^(−2).These superior achievements resulted from the enhanced interfacial stability of Li anode induced by the salt-type 2-MP-Li molecule and the avoiding of using neutral catholyte as the initial active material,thereby mitigating the side reactions originating from the polysulfide shuttle ***,density functional theory(DFT)calculation and kinetics investigations proved the pseudocapacitive characteristic and faster ion diffusion coefficient with this ***,the fabricated energy storage device showed excellent performance but with low economic cost and easy *** a LMB with an alterable amount of capacity has a high potential to be applied in flow-cell type batteries for large-scale grid energy storage in the future.

关键词： Li anode catholyte side reactions density functional theory(DFT)calculation interfacial stability cycle lifespan

来源：

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

Dynamic control analysis of interconnected pressure-swing distillation process with and without heat integration for separating azeotrope

引用

Chinese Journal of Chemical Engineering 2021年第1期34卷 67-76页

作者： Jingwei Yang zhengkun Hou Yao Dai Kang ma Peizhe Cui Yinglong Wang Zhaoyou Zhu Jun Gao College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China

Dynamic controls of pressure-swing distillation with an intermediate connection(PSDIC) process of ethyl acetate and ethanol separation were *** double temperature/composition cascade control structure can perfectly implement effective control when ±20% feed disturbances were *** control structure did not require the control of the flowrate of the side *** dynamic controllability of PSDIC with partial heat integration(PHIPSDIC) was also *** improved control structure can effectively control ±20% feed ***,in industrial production,simple controller,sensitive and easy to operate,is the optimal *** avoid the use of component controllers or complex control structure,the original product purities could be maintained using the basic control structure for the PSDIC process if the product purities in steady state were properly increased,albeit by incurring a slight rise in the total annual cost(TAC).This alternative method without a composition controller combined with the energy-saving PSDIC process provides a simple and effective control scheme in industrial production.

关键词： Azeotrope Pressure-swing distillation Dynamic controllability Control structure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Interface engineering of Fe-Co_(3)N/CoP composite with N-doped C by using soybean:Fabrication of efficient electrocatalysts for oxygen evolution reaction

引用

Carbon Resources Conversion 2023年第2期6卷 98-105页

作者： Longqing Gao Xiumin Li Chao Tang Tianshuo Xie zhengkun Xie Haimei Li Guoqing Guan Jie Liu Keyong Tang School of materials Science and Engineering Zhengzhou UniversityZhengzhou 450001PR China College of Chemistry Zhengzhou UniversityZhengzhou 450001PR China Energy Conversion Engineering Laboratory Institute of Regional InnovationHirosaki University3-BunkyochoHirosaki 036-8561Japan

Soybean can serve as an efficient carbon and nitrogen source for in-situ fabrication of efficient composite electrocatalysts with conductive nitrogen-doped carbon(N-C)*** this study,the iron-doped cobalt nitride/phosphide(Fe-Co_(3)N/CoP)nanosheet was composited with a conductive N-C material by using soybean as C and N source,as well as NH3 as additional nitrogen *** the nitridation process of Fe-Co_(3)N,N-C bond was formed as a newly generated Co(Fe)-N-C active ***,it fabricates a good microscopic contact interface between the catalyst and carbon material for charge ***,the introduction of Fe-CoP by partially phosphating Fe-Co_(3)N further improved the OER activity due to the high catalytic activity of Co sites with high valence *** a result,the obtained electrocatalyst exhibited overpotentials as low as 285 and 390 mV for supporting 10 and 100 ma/cm􀀀2 current *** work indicates that the design of materials with good interfaces could be an effective approach for the preparation of electrocatalysts for water electrolysis.

关键词： Water electrolysis Oxygen evolution reaction Co_(3)N CoP Co-N-C Soybean template

来源：

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

嘌呤信号在肝脏免疫调节中的作用

引用

临床肝胆病杂志 2023年第6期39卷 1488-1496页

作者：马发祥涂正坤吉林大学第一医院肿瘤免疫实验室长春130021

嘌呤主要由ATP、NAD^(+)和核酸组成,除了具有关键的细胞内功能外,NAD^(+)和ATP及其水解产物包括ADP、AMP和腺苷,是参与生理过程和病理状况的重要细胞外信号。嘌呤信号在肝脏微环境的免疫调节中发挥重要作用。本文主要总结了嘌呤信号对... 详细信息

嘌呤主要由ATP、NAD^(+)和核酸组成,除了具有关键的细胞内功能外,NAD^(+)和ATP及其水解产物包括ADP、AMP和腺苷,是参与生理过程和病理状况的重要细胞外信号。嘌呤信号在肝脏微环境的免疫调节中发挥重要作用。本文主要总结了嘌呤信号对肝脏免疫细胞的调控,以及嘌呤信号通过调节肝脏免疫细胞炎性和抗炎性反应影响肝脏疾病进展。

关键词：肝疾病腺苷三磷酸炎症免疫调节

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Integrated optoelectronics with two-dimensional materials

引用

National Science Open 2022年第3期1卷 59-86页

作者： Zhenzhou Cheng Rongxiang Guo Jiaqi Wang Yi Wang zhengkun Xing Lei ma Wei Wei Yu Yu Hon Ki Tsang Tiegen Liu School of Precision Instruments and Optoelectronics Engineering Tianjin UniversityTianjin 300072China Key Laboratory of Optoelectronics Information Technology Ministry of EducationTianjin 300072China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Department of Electronic Engineering The Chinese University of Hong KongHong KongChina Tianjin International Center for Nanoparticles and Nanosystems Tianjin UniversityTianjin 300072China College of Optoelectronic Engineering Chongqing UniversityChongqing 400044China Key Laboratory of Optoelectronic Technology and System Ministry of EducationChongqing 400044China Wuhan National Laboratory for Optoelectronics Wuhan 430074China School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China

As we enter the post-Moore era,heterogeneous optoelectronic integrated circuits(OEICs)are attracting significant attention as an alternative approach to scaling to smaller-sized ***-dimensional(2D)materials,offering a range of intriguing optoelectronic properties as semiconductors,semimetals,and insulators,provide great potential for developing nextgeneration heterogeneous *** instance,Fermi levels of 2D materials can be tuned by applying electrical voltages,while their atomically thin geometries are inherently suited for the fabrication of planar devices without suffering from lattice *** the first graphene-on-silicon OEICs were demonstrated in 2011,2D-material heterogeneous OEICs have significantly *** date,researchers have a better understanding of the importance of interface states on the optical properties of chip-integrated 2D ***,there has been impressive progress towards the use of 2D materials for waveguide-integrated lasers,modulators,and *** this review,we summarize the history,status,and trend of integrated optoelectronics with 2D materials.

关键词： integrated optoelectronics two-dimensional materials heterogeneous integration silicon photonics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：