检索结果-南通市图书馆

Solid-state synthesis and ion transport characteristics of the β-KSbF_(4) for all-solid-state fluoride-ion batteries

引用

Journal of Energy Chemistry 2024年第7期94卷 758-767页

作者： jiali Liu Huahui zhao jingcheng xia Lingguang Yi xiaoyi Chen Dongdu Li Shuhan Ni Xinyi Su Yixuan Chen Min Liu xianyou Wang National Base for International Science&Technology Cooperation National Local Joint Engineering Laboratory for Key Materials of New Energy Storage BatteryHunan Province Key Laboratory of Electrochemical Energy Storage&ConversionSchool of ChemistryXiangtan UniversityXiangtan 411105HunanChina College of New Energy Ningbo University of TechnologyNingbo 315336ZhejiangChina

All-solid-state fluoride ion batteries(FIBs)have been recently considered as a post-lithium-ion battery system due to their high safety and high energy *** like all solid-state lithium batteries,the key to the development of FIBs lies in room-temperature electrolytes with high ionic conductivity.β-KSbF_(4) is a kind of promising solid-state electrolyte for FIBs owing to its rational ionic conductivity and relatively wide electrochemical stability window at room ***,the previous synthesis routes ofβ-KSbF_(4) required the use of highly toxic hydrofluoric acid and the ionic conductivity of as-prepared product needs to be further ***,the β-KSbF_(4) sample with an ionic conductivity of 1.04×10^(-4)s cm^(-1)(30°C)is synthesized through the simple solid-state *** order to account for the high ionic conductivity of the as-synthesizedβ-KSbF_(4),X-ray diffraction(XRD),scanning electron microscopy(SEM),and energy dispersive X-ray spectroscopy(EDS)are used to characterize the physic-ochemical *** results show that the as-synthesizedβ-KSbF_(4) exhibits higher carrier concentra-tion of 1.0×10^(-6)S cm-Hz^(-1)K and hopping frequency of 1.31×10^(6)Hz at 30°C due to the formation of the fluorine ***,the hopping frequency shows the same trend as the changes of ionic conductivity with the changes of temperature,while the carrier concentration is found to be almost *** two different trends indicate the hopping frequency is mainly responsible for the ionic conduc-tion behavior withinβ-KSbF_(4).Furthermore,the all-solid-state FIBs,in which Ag and Pb+PbF_(2) are adopted as cathode and anode,andβ-KSbF_(4) as fluoride ion conductor,are capable of reversible charge and *** assembled FIBs show a discharge capacity of 108.4 mA h g^(-1) at 1st cycle and 74.2 mA h g^(-1) at 50th *** on an examination of the capacity decay mechanism,it has been found that deterioration of the electrolyte/electrode int

关键词： Solid-state electrolyte Carrier concentration Hopping frequency β-KSbF_(4) All-solid-state fluoride ion batteries

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

Performance decay prediction model of proton exchange membrane fuel cell based on particle swarm optimization and gate recurrent unit

Energy and AI

引用

Energy and AI 2024年第3期17卷 487-494页

作者： Ziliang zhao Yifan Fu ji Pu Zhangu Wang Senhao Shen Duo Ma Qianya Xie Fojin Zhou College of Transportation Shandong University of Science and TechnologyQingDao266590China Foshan xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory FoShan528000China

The durability of proton exchange membrane fuel cells (PEMFC) is an important issue that restricts their large-scale application. To improve their reliability during use, this paper proposes a short-term performance degradation prediction model using particle swarm optimization (PSO) to optimize the gate recurrent unit (GRU). After training using only the data from the first 300 h, good prediction accuracy can be achieved. Compared with the traditional GRU algorithm, the proposed prediction method reduces the root mean square error (RMSE) and mean absolute error (MAE) of the prediction results by 44.8 % and 35.1 %, respectively. It avoids the problem of low accuracy in predicting performance during the temporary recovery phase in traditional GRU models, which is of great significance for the health management of PEMFC.

关键词： (Gate recurrent unit)GRU (Proton exchange membrane fuel cells)PEMFC Prediction (Particle swarm optimization)PSO

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

普通院校开设舞龙运动课程的探析——以扬州工业职业技术学院开展龙狮运动为例

引用

西昌学院学报（自然科学版） 2010年第3期24卷 87-90页

作者：吉朝霞工业职业技术学院体育部江苏扬州225002

舞龙舞狮运动是民族传统体育项目之一,有着悠久的历史和灿烂的文化,在众多开设龙狮课程的高职院校中,扬州工业技术学院龙狮运动尚属于起步阶段,在相关的理论研究及训练上还存在着一定的差距,结合目前学院龙狮运动开展的现状以及理论构... 详细信息

舞龙舞狮运动是民族传统体育项目之一,有着悠久的历史和灿烂的文化,在众多开设龙狮课程的高职院校中,扬州工业技术学院龙狮运动尚属于起步阶段,在相关的理论研究及训练上还存在着一定的差距,结合目前学院龙狮运动开展的现状以及理论构建进行分析,以期为龙狮运动的进一步开展和提高提供参考。

关键词：舞龙舞狮龙狮运动普通高职院校

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

Core-shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation

引用

Chinese Chemical Letters 2024年第8期35卷 549-553页

作者： Guo-Hong Gao Run-Ze zhao Ya-Jun Wang xiao Ma Yan Li jian Zhang ji-Sen Li School of Chemistry Chemical Engineering and MaterialsJining UniversityQufu 273155China Institute of Physical Education Jining UniversityQufu 273155China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Searching for efficient nonprecious metal-based catalysts toward oxygen evolution reaction(OER)are of significance for seawater ***,a core-shell-structured hybrid of cobalt phosphide nanowires@NiFe layered double hydroxide nanosheets grown on conductive nickel foam(CoP@NiFe LDH/NF)is prepared by a feasible approach at low *** charming structure can provide numerous phosphide/hydroxide heterogenous interfaces,expose abundant active sites,and boost elec-tron/mass transfer,synergistically enhancing catalytic OER *** employed as an electrocatalyst toward the OER,the resultant CoP@NiFe LDH/NF only requires a small overpotential of 287 mV to pro-vide 300 mA/cm^(2)current density as well as long-time durability in 1.0 mol/L KOH *** regula-tion of electronic states and surface reconstruction synergistically contribute to highly efficient seawater *** work provides an opportunity to construct efficient and inexpensive electrocatalysts for hydrogen production.

关键词： Cobalt phosphide NiFe layered double hydroxide Interfacial engineering Oxygen evolution reaction Seawater oxidation

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

Diabetic retinopathy identification based on multi-sourcefree domain adaptation

引用

International Journal of Ophthalmology(English edition) 2024年第7期17卷 1193-1204页

作者： Guang-Hua Zhang Guang-Ping Zhuo zhao-xia Zhang Bin Sun Wei-Hua Yang Shao-Chong Zhang School of Big Data Intelligent Diagnosis&Treatment Industry Taiyuan UniversityTaiyuan 030032Shanxi ProvinceChina Shanxi Key Laboratory of Intelligent Optimization Computing and Blockchain Technology Taiyuan Normal UniversityTaiyuan 030619Shanxi ProvinceChina Shanxi Eye Hospital Taiyuan 030002Shanxi ProvinceChina College of Computer Science and Technology Taiyuan Normal UniversityTaiyuan 030619Shanxi ProvinceChina Shenzhen Eye Institute Shenzhen Eye HospitalJinan UniversityShenzhen 518040Guangdong ProvinceChina

AIM:To address the challenges of data labeling difficulties,data privacy,and necessary large amount of labeled data for deep learning methods in diabetic retinopathy(DR)identification,the aim of this study is to develop a source-free domain adaptation(SFDA)method for efficient and effective DR identification from unlabeled ***:A multi-SFDA method was proposed for DR *** method integrates multiple source models,which are trained from the same source domain,to generate synthetic pseudo labels for the unlabeled target ***,a softmax-consistence minimization term is utilized to minimize the intra-class distances between the source and target domains and maximize the inter-class *** is performed using three color fundus photograph datasets(APTOS2019,DDR,and EyePACS).RESULTS:The proposed model was evaluated and provided promising results with respectively 0.8917 and 0.9795 F1-scores on referable and normal/abnormal DR identification *** demonstrated effective DR identification through minimizing intra-class distances and maximizing inter-class distances between source and target ***:The multi-SFDA method provides an effective approach to overcome the challenges in DR *** method not only addresses difficulties in data labeling and privacy issues,but also reduces the need for large amounts of labeled data required by deep learning methods,making it a practical tool for early detection and preservation of vision in diabetic patients.

关键词： diabetic retinopathy multisource-free domain adaptation pseudo-label generation softmaxconsistence minimization

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

Electronic engineering of Co-Ru diatomic sites and Ru nanoparticles for synergistic promotion of hydrogen evolution

引用

Nano Research 2024年第5期17卷 3714-3723页

作者： Wei Zhang Cong Li Yongyong Cao Jun-Yang ji zhao-Chen Li Zheng Niu Hongwei Gu Pierre Braunstein jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China College of Biological Chemical Science and EngineeringJiaxing UniversityJiaxing 314001China Universitéde Strasbourg-CNRS Institut de Chimie(UMR 7177 CNRS)4 rue Blaise Pascal-CS 9003267081 StrasbourgFrance

The coexistence of multi-component active sites like single-atom sites,diatomic sites(DAS)and nanoclusters is shown to result in superior performances in the hydrogen evolution reaction(HER).Metal diatomic sites are more complex than single-atom sites but their unique electronic structures can lead to significant enhancement of the HER *** the synthesis and identification of DAS is usually challenging,we report a simple access to a diatomic catalyst by anchoring Co-Ru DAS on nitrogen-doped carbon supports along with Ru nanoparticles(NPs).Experimental and theoretical results revealed the atomic-level characteristics of Co-Ru sites,their strong electronic coupling and their synergy with Ru NPs within the *** unique electronic structure of the catalyst resulted in an excellent HER activity and stability in alkaline *** work provides a valuable insight into a widely applicable design of diatomic catalysts with multi-component active sites for highly efficient HER electrocatalysis.

关键词： Co-Ru diatomic sites Ru nanoparticles multiple active sites synergistic effect hydrogen evolution reaction

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

唑来膦酸治疗绝经后骨质疏松发生脆性骨折的临床效果与价值探讨

引用

中外医疗 2019年第4期38卷 106-108页

作者：赵继霞哈密市第二人民医院内分泌科新疆哈密839000

目的研究唑来膦酸治疗绝经后骨质疏松发生脆性骨折的临床效果与价值探讨。方法回顾性方便选取该院2017年8月—2018年8月收治的40例绝经后骨质疏松发生脆性骨折患者,按照随机数字表法将其分为A组和B组,每组20例,A组患者给予鲑鱼降钙素进... 详细信息

目的研究唑来膦酸治疗绝经后骨质疏松发生脆性骨折的临床效果与价值探讨。方法回顾性方便选取该院2017年8月—2018年8月收治的40例绝经后骨质疏松发生脆性骨折患者,按照随机数字表法将其分为A组和B组,每组20例,A组患者给予鲑鱼降钙素进行治疗,B组患者给予唑来膦酸进行治疗,观察对比两组患者的临床治疗效果、治疗前后的骨密度评分以及骨痛评分。结果 A组患者的治疗总有效率为70.00%,明显低于B组患者治疗总有效率的95.00%(χ~2=4.329 0,P=0.037 5);对比两组患者治疗前的骨密度评分与骨痛评分发现,两组对比差异无统计学意义(P>0.05);对比两组患者治疗后的骨密度评分与骨痛评分发现,相较于A组,B组骨密度评分提高的更明显(t=2.429 5,P=0.020 0),且骨痛评分降低显著(t=5.981 7,P=0.000 0),两组对比差异有统计学意义(P<0.05)。结论使用唑来膦酸治疗绝经后骨质疏松发生脆性骨折患者,能在提高临床治疗效率的同时,改善患者的骨密度评分与骨痛评分,具有较高的治疗价值,值得临床推广应用。

关键词：唑来膦酸绝经后骨质疏松脆性骨折临床效果价值体会

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

老年亚临床甲状腺功能减退症患者应用甲状腺素对其血脂、血糖、血尿酸水平的影响

引用

中国实用医药 2016年第33期11卷 100-102页

作者：赵继霞哈密地区第二人民医院内分泌科 839001

目的探讨老年亚临床甲状腺功能减退症(SCH)患者应用甲状腺素对其血脂、血糖、血尿酸水平的影响。方法 50例SCH患者,按随机数字表法分为观察组和参照组,各25例。观察组给予左旋甲状腺素治疗,参照组给予六味地黄丸颗粒治疗,对比两组患者... 详细信息

目的探讨老年亚临床甲状腺功能减退症(SCH)患者应用甲状腺素对其血脂、血糖、血尿酸水平的影响。方法 50例SCH患者,按随机数字表法分为观察组和参照组,各25例。观察组给予左旋甲状腺素治疗,参照组给予六味地黄丸颗粒治疗,对比两组患者治疗效果。结果治疗后观察组促甲状腺素(TSH)、游离三碘甲状腺原氨酸(FT_3)、游离甲状腺素(FT_4)的指标分别为(4.4±1.5)ml/L、(4.5±1.4)pmol/L、(13.1±3.5)pmol/L,参照组分别为(9.1±2.1)ml/L、(1.6±0.5)pmol/L、(5.4±1.2)pmol/L;观察组TSH指标显著低于参照组,FT_3、FT_4指标高于参照组,差异有统计学意义(P0.05)。结论对SCH患者行甲状腺素治疗,可使患者的血脂代谢状态得以改善,可在临床推广。

关键词：甲状腺素亚临床甲状腺功能减退症六味地黄丸颗粒

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

Mesenchymal stem cell-derived extracellular vesicles in skin wound healing:roles,opportunities and challenges

引用

Military Medical Research 2024年第3期11卷 400-429页

作者： jia-Yi Ding Min-jiang Chen Ling-Feng Wu Gao-Feng Shu Shi-ji Fang zhao-Yu Li Xu-Ran Chu xiao-Kun Li Zhou-Guang Wang jian-Song ji Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research Institute of Imaging Diagnosis and Minimally Invasive Intervention Researchthe Fifth Affiliated Hospital of Wenzhou Medical UniversityZhejiangLishui 323000China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhou 325035ZhejiangChina Clinical College of the Affiliated Central Hospital School of MedicineLishui UniversityLishui 323000ZhejiangChina Department of Overseas Education College Jimei UniversityXiamen 361021FujianChina Department of Medicine Ⅱ Internal MedicineCardio-Pulmonary Institute(CPI)Universities of Giessen and Marburg Lung Center(UGMLC)Member of the German Center for Lung Research(DZL)Justus-Liebig University Giessen35392 GiessenGermany Pulmonary and Critical Care Department of Medicine VInternal MedicineInfectious Diseases and Infection ControlUniversities of Giessen and Marburg Lung Center(UGMLC)Member of the German Center for Lung Research(DZL)Justus-Liebig University Giessen35392 GiessenGermany

Skin wounds are characterized by injury to the skin due to trauma,tearing,cuts,or *** such injuries are common to all human groups,they may at times represent a serious socioeconomic ***,increasing numbers of studies have focused on the role of mesenchymal stem cell(MSC)-derived extracellular vesicles(EVs)in skin wound *** a cell-free therapy,MSC-derived EVs have shown significant application potential in the field of wound repair as a more stable and safer option than conventional cell *** based on MSC-derived EVs can significantly promote the repair of damaged substructures,including the regeneration of vessels,nerves,and hair *** addition,MSC-derived EVs can inhibit scar formation by affecting angiogenesis-related and antifibrotic pathways in promoting macrophage polarization,wound angiogenesis,cell proliferation,and cell migration,and by inhibiting excessive extracellular matrix ***,these structures can serve as a scaffold for components used in wound repair,and they can be developed into bioengineered EVs to support trauma *** the formulation of standardized culture,isolation,purification,and drug delivery strategies,exploration of the detailed mechanism of EVs will allow them to be used as clinical treatments for wound *** conclusion,MSCderived EV-based therapies have important application prospects in wound *** we provide a comprehensive overview of their current status,application potential,and associated drawbacks.

关键词： Mesenchymal stem cell(MSC) Extracellular vesicles(EVs) Wound repair Engineered nanoparticles

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

Egg-associated secretions from the brown planthopper(Nilaparvata lugens)activate rice immune responses

引用

Insect Science 2024年第4期31卷 1135-1149页

作者： jing Li Shuai Li jing Li Xinyang Tan Zhichang zhao Lei jiang Ary A.Hoffmann jichao Fang Rui ji Institute of Plant Protection Jiangsu Academy of Agricultural SciencesJiangsu Key Laboratory for Food and Safety-State Key Laboratory Cultivation Base of Ministry of Science and TechnologyNanjingChina College of Plant Protection Nanjing Agricultural UniversityNanjingChina School of Plant Protection Anhui Agricultural UniversityHefeiChina School of BioSciences Bio21 InstituteUniversity of MelbourneParkvilleVICAustralia jiangsu Collaborative Innovation Center of Regional Modern Agriculture&Environmental Protection Huaiyin Normal UniversityHuaianJiangsu ProvinceChina

The brown planthopper(BPH,Nilaparvata lugens)is a notorious sap-sucking insect pest that damages rice(Oryza sativa)plants throughout *** BPH feeding,saliva enters rice plant tissues,whereas during oviposition egg-associated secretions(EAS)are deposited in damaged plant *** changes in rice to planthopper salivary effectors have been widely ***,the effects of EAS from planthopper on rice immunity remains largely *** this study,we found that both infestation of rice by gravid BPH female adults and treatment with the EAS elicited a strong and rapid accumulation of jasmonic acid(JA),JA-isoleucine,and hydrogen peroxide in *** enhanced plant defenses not only in rice but also in tobacco,and these impaired the performance of BPH on rice,as well as the performance of aphids and whiteflies on ***-throughput proteome sequencing of EAS led to 110 proteins being identified and 53 proteins with 2 or more unique peptides being *** proteins from BPH EAS were also found in the salivary proteome from herbivores,suggesting potential evolutionary conservation of effector functions across feeding and oviposition;however,others were only identified in EAS,and these are likely specifically related to *** findings point to novel proteins affecting interactions between planthoppers and rice during oviposition,providing an additional source of information for effector studies.

关键词： egg-associated secretion Nilaparvata lugens oviposition plant immunity proteome

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

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：