检索结果-南通市图书馆

Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

Science China Chemistry 2025年第1期68卷 385-393页

作者： Jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong Zhen School of Chemistry&Chemical Engineering Yan’an UniversityYan’an 716000China

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS_(2)/Ca V_(4)O_(9)material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS_(2)material,the VS_(2)/Ca V_(4)O_(9)material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS_(2)/Ca V_(4)O_(9)material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS_(2),the VS_(2)/Ca V_(4)O_(9)cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS_(2)/Ca V_(4)O_(9)cathode delivers a higher power density of 37,000 W kg^(-1)and a significant energy density of 423 Wh kg^(-1).At the high current density of 15 A g^(-1),the VS_(2)/Ca V_(4)O_(9)cathode still has a discharge capacity of 183.9m Ah g^(-1)after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry(CV)curves,electrochemical impedance spectroscopy(EIS)measurements,density functional theory(DFT)calculation and galvanostatic intermittent titration technique(GITT)measurements demonstrate that the VS_(2)/Ca V_(4)O_(9)cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

关键词： dual modulation homogeneous nanomaterialization electrochemical activation zinc ion storage

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

Association between autoimmune gastritis and gastric polyps:Clinical characteristics and risk factors

引用

World Journal of Gastrointestinal Oncology 2025年第1期17卷 73-87页

作者： Jing-Zheng Jin Xiao Liang Shu-Peng Liu rui-Lan wang Qing-Wei Zhang Yu-Feng Shen Xiao-Bo Li Division of Gastroenterology and Hepatology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Division of Gastroenterology and Hepatology Shanghai Institute of Digestive DiseasesShanghai 200001China Division of Gastroenterology and Hepatology Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China Division of Gastroenterology and Hepatology Sichuan Armed Police Corps HospitalLeshan 610041Sichuan ProvinceChina Division of Gastroenterology and Hepatology NHC Key Laboratory of Digestive DiseasesRenji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Gastroenterology Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai Institute of Digestive DiseasesShanghai 200127China

BACKGROUND The relationship between autoimmune gastritis(AIG)and gastric polyps(GPs)is not well *** To explore the clinical characteristics and risk factors of AIG with GPs in *** This double center retrospective study included 530 patients diagnosed with AIG from July 2019 to July *** collected clinical,biochemical,serological,and demographic data were of each *** regression analyses,both multivariate and univariate,were conducted to pinpoint independent risk factors for GPs in patients with AIG *** operating characteristic curves were utilized to establish the optimal cutoff values,sensitivity,and specificity of these risk factors for predicting GPs in patients with *** Patients with GPs had a higher median age than those without GPs[61(52.25-69)years vs 58(47-66)years,P=0.006].The gastrin-17 levels were significantly elevated in patients with GPs compared with those without GPs[91.9(34.2-138.9)pmol/mL vs 60.9(12.6-98.4)pmol/mL,P<0.001].Additionally,the positive rate of parietal cell antibody(PCA)antibody was higher in these patients than in those without GPs(88.6%vs 73.6%,P<0.001).Multivariate and univariate analyses revealed that PCA positivity[odds ratio(OR)=2.003,P=0.017],pepsinogen II(OR=1.053,P=0.015),and enterochromaffin like cells hyperplasia(OR=3.116,P<0.001)were significant risk factors for GPs,while pepsinogen I was identified as a protective *** PCA positivity and enterochromaffin like cells hyperplasia are significant risk factor for the development of GPs in patients with *** gastrin-17 levels may also play a role in this *** findings suggest potential targets for further research and therapeutic intervention in managing GPs in patients with AIG.

关键词： Autoimmune gastritis Gastric polyps Neuroendocrine tumor Risk factors Nomogram

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

内分泌失调性不孕症患者采取中西医联合疗法的临床效果观察

引用

临床医学研究与实践 2017年第7期2卷 96-97页

作者：马群英王美瑞武功县5702厂医院陕西咸阳712203

目的观察内分泌失调性不孕症采取中西医联合疗法的临床效果。方法将我院2013年2月至2014年1月收治的60例内分泌失调性不孕症患者随机分为对照组与观察组,各30例,对照组给予传统的西药治疗,观察组采取中西医联合治疗,观察两组患者的临床... 详细信息

目的观察内分泌失调性不孕症采取中西医联合疗法的临床效果。方法将我院2013年2月至2014年1月收治的60例内分泌失调性不孕症患者随机分为对照组与观察组,各30例,对照组给予传统的西药治疗,观察组采取中西医联合治疗,观察两组患者的临床疗效,治疗前、后雌二醇(E_2)及卵泡生成激素(FSH)等指标及不良反应发生率。结果观察组患者的临床总好转率优于对照组,差异显著(P<0.05);治疗后两组患者的E_2及FSH水平均升高,且观察组高于对照组,差异显著(P<0.05);观察组患者的不良反应发生率为3.33%,低于对照组的23.33%,差异具有统计学意义(P<0.05)。结论内分泌失调性不孕症患者采取中西医联合疗法的效果显著,可控制其机体内E_2及FSH水平,从而改善卵巢功能,提高临床疗效,不良反应少。

关键词：不孕症内分泌失调中西医

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

铜萃取过程中三相絮凝物的生成与处理

引用

中国有色冶金 2014年第4期43卷 13-15页

作者：郑明臻王瑞梅中国恩菲工程技术有限公司北京100038

介绍铜萃取过程中三相絮凝物的生成原因及处理方法,列举了五个典型的絮凝物灾难性例子,重点介绍了利用卧式沉降离心机离心法分离絮凝物的试验过程。

关键词：萃取三相絮凝物离心机分离

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

鲜食葡萄产业链利润分配研究——基于河北昌黎的案例分析

引用

农业现代化研究 2016年第6期37卷 1128-1134页

作者：邓磊张希玲赵婧洁王瑞梅中国农业大学经济管理学院北京100083 中国财政科学研究院北京100142 北京市海淀区国家税务局北京100091

深入分析鲜食葡萄产业链利润分配格局,对解决当前各利益主体间利润分配不合理问题,改善主产区农户收益状况,推动葡萄产业健康发展有着重要意义。以河北省昌黎县至北京鲜食葡萄的流通为例,分析产业链中农户、批发商和零售商的成本收益情... 详细信息

深入分析鲜食葡萄产业链利润分配格局,对解决当前各利益主体间利润分配不合理问题,改善主产区农户收益状况,推动葡萄产业健康发展有着重要意义。以河北省昌黎县至北京鲜食葡萄的流通为例,分析产业链中农户、批发商和零售商的成本收益情况及利润分配格局,并运用Shapley值法,探讨产业链中不同利润分配模式的优化与选择。结果表明,当前产业链利润分配格局中,农户获得产业链利润的21%,批发商获得52%,零售商获得27%,而农户资金投入与时间投入远高于批发商与零售商,且其收益状况受气候条件、市场价格与需求及批发商和零售商市场与价格风险转移的多重影响,承担了巨大风险,表明当前产业链利润向流通环节过度倾斜,利润分配不合理。综合考虑产业链中各主体贡献、成本投入及参与合作动力等因素后,修正的Shapley值分配结果表明,农户获得产业链利润的29%,批发商获得48%,零售商获得23%,农户收益状况得到显著改善,保障了产业链稳定运行。因此,要改善当前鲜食葡萄产业链利润分配格局,应完善产业链各主体间利益连接机制,建立稳定的合作关系,推动产业健康发展。

关键词：鲜食葡萄产业链利润分配 Shapley值

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

Computed tomography enterography-based radiomics for assessing mucosal healing in patients with small bowel Crohn's disease

引用

World Journal of Gastroenterology 2025年第3期31卷 62-72页

作者： Hao Ding Yuan-Yuan Fang Wen-Jie Fan Chen-Yu Zhang Shao-Fei wang Jing Hu Wei Han Qiao mei Department of Gastroenterology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Radiation Oncology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Gastroenterology Suzhou First People's HospitalSuzhou 234099Anhui ProvinceChina

BACKGROUND Mucosal healing(MH)is the major therapeutic target for Crohn's disease(CD).As the most commonly involved intestinal segment,small bowel(SB)assessment is crucial for CD ***,it poses a significant challenge due to its limited accessibility through conventional endoscopic *** To establish a noninvasive radiomic model based on computed tomography enterography(CTE)for MH assessment in SBCD *** Seventy-three patients diagnosed with SBCD were included and divided into a training cohort(n=55)and a test cohort(n=18).Radiomic features were obtained from CTE images to establish a radiomic *** demographics were analysed to establish a clinical model.A radiomic-clinical nomogram was constructed by combining significant clinical and radiomic *** diagnostic efficacy and clinical benefit were evaluated via receiver operating characteristic(ROC)curve analysis and decision curve analysis(DCA),*** Of the 73 patients enrolled,25 patients achieved *** radiomic-clinical nomogram had an area under the ROC curve of 0.961(95%confidence interval:0.886-1.000)in the training cohort and 0.958(0.877-1.000)in the test cohort and provided superior clinical benefit to either the clinical or radiomic models alone,as demonstrated by *** These results indicate that the CTE-based radiomic-clinical nomogram is a promising imaging biomarker for MH and serves as a potential noninvasive alternative to enteroscopy for MH assessment in SBCD patients.

关键词： Crohn’s disease Computed tomography enterography Mucosal healing Nomogram Radiomics

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

对PTCA+支架术后拔管反应的护理干预

引用

实用全科医学 2007年第9期5卷 837-838页

作者：徐秀君王瑞梅王芳安徽省蚌埠市第二人民医院心内科 233000

目的为了减少经皮冠状动脉腔内成形术(PTCA)+支架术后拔管反应的发生。方法通过观察法对甲、乙2组各40例患者分别采用常规的拔管方法和除行常规拔管外配合护理干预。结果乙组比甲组拔管反应明显减少(P<0.05)。结论护理干预可减少拔管反... 详细信息

目的为了减少经皮冠状动脉腔内成形术(PTCA)+支架术后拔管反应的发生。方法通过观察法对甲、乙2组各40例患者分别采用常规的拔管方法和除行常规拔管外配合护理干预。结果乙组比甲组拔管反应明显减少(P<0.05)。结论护理干预可减少拔管反应的发生率。

关键词：护理干预 PTCA+支架术拔管反应

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

Tauroursodeoxycholic acid targets HSP90 to promote protein homeostasis and extends healthy lifespan

引用

Science China(Life Sciences) 2025年第2期68卷 416-430页

作者： Jia-Yu Liu Yao wang Yue Guo Run-Qi Zheng Yun-Ying wang Yan-Yan Shen Yan-Hong Liu Ai-Ping Cao rui-Bo wang Bo-Yang Xie Shuai Jiang Qiu-Ying Han Jing Chen Fang-Ting Dong Kun He Na wang Xin Pan Tao Li Tao Zhou Ai-Ling Li Qing Xia Wei-Na Zhang Nanhu Laboratory National Center of Biomedical AnalysisBeijing 100850China

As the elderly population expands,the pursuit of therapeutics to reduce morbidity and extend lifespan has become increasingly *** an FDA-approved drug for chronic cholestatic liver diseases,tauroursodeoxycholic acid(TUDCA),a natural bile acid,offers additional health benefits beyond liver ***,we show that TUDCA extends the lifespan and healthspan of ***,oral supplementation of TUDCA improves fitness in old mice,including clinically relevant phenotypes,exercise capacity and cognitive ***,TUDCA treatment drives broad transcriptional changes correlated with anti-aging ***,we discover that TUDCA targets the chaperone HSP90 to promote its protein refolding *** collaboration further alleviates aging-induced endoplasmic reticulum(ER)stress and facilitates protein homeostasis,thus offering resistance to *** summary,our findings uncover new molecular links between an endogenous metabolite and protein homeostasis,and propose a novel anti-aging strategy that could improve both lifespan and healthspan.

关键词： tauroursodeoxycholic acid lifespan healthspan protein homeostasis

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

A supramolecular formulation of icariin@sulfonatoazocalixarene for hypoxia-targeted osteoarthritis therapy

引用

Chinese Chemical Letters 2025年第1期36卷 267-271页

作者： Chao Zhang Ai-Feng Liu Shihui Li Fang-Yuan Chen Jun-Tao Zhang Fang-Xing Zeng Hui-Chuan Feng Ping wang Wen-Chao Geng Chuan-rui Ma Dong-Sheng Guo Orthopedics department First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300380China Orthopedics department National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjin 300380China College of Chemistry State Key Laboratory of Elemento-Organic ChemistryKey Laboratory of Functional Polymer Materials(Ministry of Education)Frontiers Science Center for New Organic MatterCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)Nankai UniversityTianjin 300071China

Osteoarthritis(OA)is the most prevalent joint disease and icariin is a promising drug for its ***,the clinical use of icariin is hindered by poor water solubility,low bioavailability,and nonspecific release and biological ***,sulfonated azocalix[4]arene(SAC4A)with enhanced water solubility,recognition capacity,and designed responsiveness was used to improve the efficiency of icariin for OA ***4A,a macrocycle with well-defined molecular weight and structure,could encapsulate and enhance water solubility of various *** addition,SAC4A enables hypoxia-responsive release of loaded *** with icariin treatment,supramolecular complex icariin@SAC4A significantly relieved OA symptoms of rats,including more regular bone morphology and structure,and lower degree of cartilage ***,the supramolecular formulation demonstrated various advantages,including easy preparation,hypoxia-triggered release,and small size that conducive to drug penetration.

关键词： Biomaterial Supramolecular chemistry Calixarene Icariin Osteoarthritis

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

Zn(TFSI)_(2)-Mediated Ring-Opening Polymerization for Electrolyte Engineering Toward Stable Aqueous Zinc Metal Batteries

引用

Nano-Micro Letters 2025年第5期17卷 479-491页

作者： Zhenjie Liu Murong Xi rui Sheng Yudai Huang Juan Ding Zhouliang Tan Jiapei Li Wenjun Zhang Yonggang wang State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830017People’s Republic of China Department of Materials Science and Engineering&Center of Super-Diamond and Advanced Films City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SARPeople’s Republic of China Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New EnergyiChEM(Collaborative Innovation Center of Chemistry for Energy Materials)Fudan UniversityShanghai 200433People’s Republic of China

Practical Zn metal batteries have been hindered by several challenges,including Zn dendrite growth,undesirable side reactions,and unstable electrode/electrolyte *** issues are particularly more serious in low-concentration ***,we design a Zn salt-mediated electrolyte with in situ ring-opening polymerization of the small molecule organic *** Zn(TFSI)_(2)salt catalyzes the ring-opening polymerization of(1,3-dioxolane(DOL)),generating oxidation-resistant and non-combustible long-chain polymer(poly(1,3-dioxolane)(pDOL)).The pDOL reduces the active H_(2)O molecules in electrolyte and assists in forming stable organic–inorganic gradient solid electrolyte interphase with rich organic constituents,ZnO and ZnF_(2).The introduction of pDOL endows the electrolyte with several advantages:excellent Zn dendrite inhibition,improved corrosion resistance,widened electrochemical window(2.6 V),and enhanced low-temperature performance(freezing point=-34.9°C).Zn plating/stripping in pDOL-enhanced electrolyte lasts for 4200 cycles at 99.02%Coulomb efficiency and maintains a lifetime of 8200 ***,Zn metal anodes deliver stable cycling for 2500 h with a high Zn utilization of 60%.A Zn//VO_(2)pouch cell assembled with lean electrolyte(electrolyte/capacity(E/C=41 mL(Ah)^(-1))also demonstrates a capacity retention ratio of 92%after 600 *** results highlight the promising application prospects of practical Zn metal batteries enabled by the Zn(TFSI)2-mediated electrolyte engineering.

关键词： Electrolyte engineering Ring-opening polymerization Lewis acid catalyst Zn metal battery

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：