检索结果-南通市图书馆

Engineering molecular regulation for SiO_(x) with long-term stable cycle and high Coulombic efficiency as lithium-ion battery anodes

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第2期43卷 588-598页

作者： Fei Wang Han Gao Zhao-Yu Niu yao-peng Zheng Ming-Yan Chuai Jia-Nan Xu State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China University of Science and Technology of China Hefei230026China

In the current situation where the practical application of silicon anode materials encounters great challenges,silicon oxide(SiO_(x),0≤x≤2)has attracted the attention of researchers due to its relatively small volume expansion,stable cycling performance,and low cost,which is possible to realize commercial applications earlier than silicon ***,it remains a challenge to prepare SiO_(x)materials with long-term stable cycling performance and high Coulombic efficiency using low-cost *** this work,SiO_(x)anode material with high Coulombic efficiency and good long-term cycling stability was prepared at a low cost by hydrolysis of siloxane and in situ polymerization of phenolic *** hydrolysis of siloxane was further regulated by different silane coupling agents to regulate the size and microstructure of prepared SiO_(x)materials,which displayed the substantially improved electrochemical *** excellent electrochemical performance of SiO_(x)prepared by regulated hydrolysis of siloxane with silane coupling agents is attributed to the effect of silane coupling agent on size and microstructure of SiO_(x),revealing that the strategy of modulating the hydrolysis of siloxane by silane coupling agent is a potential method to prepare high-performance SiO_(x)materials.

关键词： Hydrolysis Silane coupling agent Long cycle SiO_(x) anode Lithium-ion battery(LIB)

The biological functions and metabolic pathways of valine in swine

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2024年第1期15卷 20-34页

作者： Chuni Wang yao peng Yiru Zhang Juan Xu Sheng Jiang Leli Wang Yulong Yin Institute of Subtropical Agriculture Chinese Academy of SciencesChangshaChina Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation College of Life SciencesHunan Normal UniversityChangshaChina Tianjin Institute of Industrial Biotechnology Chinese Academy of SciencesTianjinChina

Valine is an essential amino acid and a type of branched-chain amino acid. Due to the involvement of branchedchain amino acids in various metabolic pathways, there has been a surge of interests in valine nutrition and its role in animal physiology. In pigs, the interactions between valine and other branched-chain amino acids or aromatic amino acids are complex. In this review, we delve into the interaction mechanism, metabolic pathways, and biological functions of valine. Appropriate valine supplementation not only enhances growth and reproductive performances, but also modulates gut microbiota and immune functions. Based on past observations and interpretations, we provide recommended feed levels of valine for weaned piglets, growing pigs, gilts, lactating sows, barrows and entire males. The summarized valine nutrient requirements for pigs at different stages offer valuable insights for future research and practical applications in animal husbandry.

关键词： Additional dosage Biological function Metabolic pathway Pig Valine

Electroacupuncture Promotes Functional Recovery after Facial Nerve Injury in Rats by Regulating Autophagy via GDNF and PI3K/m TOR Signaling Pathway

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第3期30卷 251-259页

作者： yao Jun-peng FENG Xiu-mei WANG Lu LI Yan-qiu ZHU Zi-yue YAN Xiang-yun YANG Yu-qing LI Ying ZHANG Wei Acupuncture and Tuina School Chengdu University of Traditional Chinese MedicineChengdu611137China Department of Rehabilitation Medicine Guanghan People’s HospitalGuanghanSichuan Province618399China Academic Affairs Office Chengdu University of Traditional Chinese MedicineChengdu611137China

Objective:To explore the mechanism of electroacupuncture(EA) in promoting recovery of the facial function with the involvement of autophagy,glial cell line-derived neurotrophic factor(GDNF),and phosphatidylinositol-3-kinase(PI3K)/mammalian target of rapamycin(mTOR) signaling ***:Seventy-two male Sprague-Dawley rats were randomly allocated into the control,sham-operated,facial nerve injury(FNI),EA,EA+3-methyladenine(3-MA),and EA+GDNF antagonist groups using a random number table,with 12 rats in each *** FNI rat model was established with facial nerve crushing *** intervention was conducted at Dicang(ST 4),Jiache(ST 6),Yifeng(SJ 17),and Hegu(LI 4) acupoints for 2 *** Simone’s 10-Point Scale was utilized to monitor the recovery of facial *** histopathological evaluation of facial nerves was performed using hematoxylin-eosin(HE) *** levels of Beclin-1,light chain 3(LC3),and P62 were detected by immunohistochemistry(IHC),immunofluorescence,and reverse transcriptionpolymerase chain reaction,***,IHC was also used to detect the levels of GDNF,Rai,PI3K,and ***:The facial functional scores were significantly increased in the EA group than the FNI group(P<0.05 or P<0.01).HE staining showed nerve axons and myelin sheaths,which were destroyed immediately after the injury,were recovered with EA *** expressions of Beclin-1 and LC3 were significantly elevated and the expression of P62 was markedly reduced in FNI rats(P<0.01);however,EA treatment reversed these abnormal changes(P<0.01).Meanwhile,EA stimulation significantly increased the levels of GDNF,Rai,PI3K,and mTOR(P<0.01).After exogenous administration with autophagy inhibitor 3-MA or GDNF antagonist,the repair effect of EA on facial function was attenuated(P<0.05 or P<0.01).Conclusions:EA could promote the recovery of facial function and repair the facial nerve damages in a rat model of *** may exert this neuroreparative effect through

关键词： electroacupuncture facial nerve injury autophagy glial cell line-derived neurotrophic factor phosphatidylinositol-3-kinase/mammalian target of rapamycin Chinese medicine

Clinical Efficacy of Pentoxifylline Combined with Thioctic Acid in the Treatment of Painful Diabetic Peripheral Neuropathy

在线全文

学校读者我要写书评

暂无评论

Journal of Clinical and Nursing Research 2024年第7期8卷 123-127页

作者： Dengjuan Ma Shilong Zhang peng yao The Second People’s Hospital of Qingyang City Qingyang 745000Gansu ProvinceChina

Objective:To observe the efficacy of pentoxifylline+thioctic acid in the treatment of patients with painful diabetic peripheral neuropathy(PDPN).Methods:70 patients with PDPN admitted from October 2019 to October 2022 were selected and randomly grouped,with pentoxifylline+thioctic acid treatment in Group A and thioctic acid treatment in Group B,and the treatment efficacy was ***:The treatment efficacy in Group A was higher than that of Group B,P<0.05;the points of each symptom of PDPN in Group A were lower than that of Group B,P<0.05;the C-reactive protein and electromyography indexes of PDPN patients in Group A were better than that of Group B,P<***:PDPN patients treated with pentoxifylline+thioctic acid can optimize nerve function,inhibit inflammation progression,and reduce PDPN symptoms,which is an efficient and feasible treatment option.

关键词： Thioctic acid Pentoxifylline Painful diabetic peripheral neuropathy Efficacy

高校信息素养教育课程思政的生成逻辑与实践进路

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

图书情报工作 2024年第14期68卷 58-67页

作者：江云文洁彭瑶重庆理工大学图书馆重庆400054

[目的/意义]针对信息素养教育课程思政的现实瓶颈问题及研究现状,尝试构建适切课程特点的,集细节切入与组织架构共生的课程思实施路径,为相关教学和研究提供参考。[方法/过程]从课程认同、教师素养、学习团队、边界意识、科研盲点及顶... 详细信息

[目的/意义]针对信息素养教育课程思政的现实瓶颈问题及研究现状,尝试构建适切课程特点的,集细节切入与组织架构共生的课程思实施路径,为相关教学和研究提供参考。[方法/过程]从课程认同、教师素养、学习团队、边界意识、科研盲点及顶层设计等6个维度,微观与宏观结合,对其课程思政的路径进行了系统探索。具体实践进路为:重塑课程价值—涵养师资队伍—搞好教学团建—筑牢边界防线—扫除科研盲点—开对谋划方子。由此,整体架构得以勾勒:起点是课程认同,目标是育人生态,关键是师资团队,重点是素养培育。[结果/结论]“创设情境活动”深受学生喜爱,能在任务驱动中不自觉实现思政教育;“扫除科研盲点”,有利于克服学术误区,培育科学素养;师资队伍涵育与边界意识培养能促进育人生态建设,为相关课程思政提供有益借鉴。

关键词：信息素养教育课程思政生成逻辑

基于生态系统服务供需的临沂市固碳生态网络构建

在线全文

学校读者我要写书评

暂无评论

应用生态学报 2024年第3期35卷 759-768页

作者：梁华秋沈梦晗邵明姚朋北京林业大学园林学院北京100083

碳排放的加剧是全球变暖的重要原因之一,城市作为碳排放的重点区域急需提升整体固碳能力。固碳服务可在供给与需求区域之间依靠大气的流通实现相邻区域间生态系统服务的转移。本研究以临沂市为例,应用最小累积阻力模型提取供需匹配路径... 详细信息

碳排放的加剧是全球变暖的重要原因之一,城市作为碳排放的重点区域急需提升整体固碳能力。固碳服务可在供给与需求区域之间依靠大气的流通实现相邻区域间生态系统服务的转移。本研究以临沂市为例,应用最小累积阻力模型提取供需匹配路径并进行固碳生态网络的构建。结果表明:研究区域固碳服务供给量较高的区域位于北部和南部,现有供给总量约可解决60%的需求总量;供需空间分布不平衡,仍有54%的可解决周边固碳需求的区域被闲置;优化供需匹配路径能保持较好的物质能量传播效率,成本较低,潜在固碳能力较强的路径位于研究区中部和西北部。在固碳生态网络的建设中,需加强固碳服务供给端的保护与修复,实现固碳服务需求端的减碳排与强固碳,并做到供需匹配路径的优化与协调。该方法通过生态系统服务供给过剩区域为周边高需求区域提供服务,优化整体资源配置,可提升区域固碳能力。

关键词：生态系统服务供需固碳服务固碳生态网络临沂市

同方期刊数据库

竹纤维粒径与比例对石竹塑复合材料的性能影响

在线全文

学校读者我要写书评

暂无评论

北京林业大学学报 2024年第1期46卷 131-140页

作者：詹婷任津源彭尧曹金珍北京林业大学材料科学与技术学院木质材料科学与应用教育部重点实验室北京100083 台州市黄岩津泓玩具有限公司浙江台州318024 台州市津泓新材料有限公司浙江台州318024

【目的】阐明不同竹纤维粒径和原料配比对竹纤维/聚丙烯/碳酸钙复合材料物理力学性能的影响机理,为石竹塑复合材料的工业化生产与应用提供依据。【方法】以碳酸钙、竹纤维和聚丙烯为原料,在控制竹纤维粒径(40目、80目和120目)与原料配... 详细信息

【目的】阐明不同竹纤维粒径和原料配比对竹纤维/聚丙烯/碳酸钙复合材料物理力学性能的影响机理,为石竹塑复合材料的工业化生产与应用提供依据。【方法】以碳酸钙、竹纤维和聚丙烯为原料,在控制竹纤维粒径(40目、80目和120目)与原料配比的基础上,制备竹纤维/聚丙烯/碳酸钙复合材料,考察其物理力学性能,并采用扫描电子显微镜、热重分析仪和熔融指数仪对复合材料的微观结构、热稳定性和流动性进行表征。最后,综合考虑生产成本与相关性能要求,为竹纤维/聚丙烯/碳酸钙复合材料的生产与应用提出建议。【结果】随着碳酸钙添加量的增加,复合材料的拉伸强度、弯曲强度和弹性模量均逐渐下降,而密度则呈上升趋势。竹纤维粒径对复合材料物理力学性能的影响较为显著。当竹纤维粒径为80目,碳酸钙和竹纤维添加量分别为5%和45%时,复合材料的拉伸强度、弯曲强度和弹性模量最优,分别为36.09 MPa、62.6 MPa和4.30 GPa。碳酸钙添加量对复合材料冲击强度的影响不大。此外,随着碳酸钙添加量的增加,复合材料的热稳定性与熔体流动性均有所改善。当碳酸钙添加质量占比为20%时,复合材料的熔体流动速率为16.50 g/10 min,比未添加组提高了8.98%,加工性能得到改善。【结论】选用80目竹纤维的复合材料具有较优的物理力学性能,在添加碳酸钙后,复合材料的原料成本可降低1.63%~6.54%,且其相关指标仍远高于行业标准要求。

关键词：复合材料竹纤维石竹塑复合材料碳酸钙物理力学性能

在线全文

学校读者我要写书评

暂无评论

中和剂在水性涂料中的应用研究

现代涂料与涂装 2024年第7期27卷 4-6页

作者：姚兆鹏王玺程王鹏孙学军西北永新涂料有限公司长庆油田第七采油厂长庆油田第十一采油厂

重点介绍了在水性涂料的生产过程中，胺中和剂对颜填料的分散性、贮存稳定性方面所起的作用。

关键词：胺中和剂分散性贮存稳定性

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

皮肤肿瘤智能远程会诊系统研究

中国激光 2024年第9期51卷 263-272页

作者：郎中亮张帆吴柄萱邵鹏飞申书伟姚鹏刘鹏徐晓嵘中国科学技术大学生物医学工程学院安徽合肥230026 中国科学技术大学附属第一医院(安徽省立医院)整形外科安徽合肥230001 中国科学技术大学精密机械与精密仪器系安徽合肥230027 +中国科学技术大学苏州高等研究院江苏苏州215123 中国科学技术大学电子科学与技术系安徽合肥230026

远程皮肤病学是缓解偏远地区皮肤专科医生缺乏问题的有效手段,但目前的方法存在适用范围有限、严重依赖远程医学专家及显示不够直观等缺陷。为弥补当前研究不足,设计并搭建了一套皮肤肿瘤智能远程会诊系统,该系统兼具无网络环境下的皮... 详细信息

远程皮肤病学是缓解偏远地区皮肤专科医生缺乏问题的有效手段,但目前的方法存在适用范围有限、严重依赖远程医学专家及显示不够直观等缺陷。为弥补当前研究不足,设计并搭建了一套皮肤肿瘤智能远程会诊系统,该系统兼具无网络环境下的皮肤肿瘤自动筛查和有网络环境下的远程会诊及术前规划功能。性能量化实验结果表明,系统可将虚拟的标注高精度原位投射到成像区域。实验对照结果显示,部署于该系统的深度学习模型在诊断能力上与皮肤科专家相当,并且能够辅助专家更迅速、更精确地做出医疗决策。临床试验进一步证实了该系统的实用性。该系统旨在为医疗资源有限的地区提供帮助,使得当地患者能够进行皮肤肿瘤等多种疾病的早期筛查及治疗.

关键词：医用光学生物技术远程皮肤病学人工智能增强现实原位投影成像