期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到209,470篇文章
< 1 2 … 250 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Cs2SnI6:A Perovskite-Based Electromagnetic Wave Absorbing Material 认领 引用 被引量：1
1
作者 Fei Han Wei‑Ping Ye +9 位作者 Ling‑Ling Wang Feng Liu Qing Pang Xi Yan Yue Zhang Zi‑Dong Zhang Wei‑Dong Xue Wen‑Jian Wang Rui Zhao Xiao‑Yu Yang 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期650-660,共11页
Lead halide perovskites and carbon-based materials are interesting,high-performing electromagnetic wave absorbing materials.However,only a few studies have been carried out to examine in detail the electromagnetic wav... Lead halide perovskites and carbon-based materials are interesting,high-performing electromagnetic wave absorbing materials.However,only a few studies have been carried out to examine in detail the electromagnetic wave absorption properties of these materials.Moreover,because most perovskites contain lead and have low structural stabilities,concerns exist about the potential environmental and biological toxicity impacts associated with their use.In this effort,we demonstrate for the first time that the novel,non-toxic,and lead-free inorganic halide perovskite Cs2SnI6 absorbs electromagnetic waves.Specifically,we show that the SnI4-derived Cs2SnI6 perovskite can be synthesized by using a one-step solution-based method and that it has an effective absorption bandwidth of 6.4 GHz at a thickness of 1.9 mm.The outstanding performance profile of this material is attributed to dipole-like oscillation of cations and anions within Cs2SnI6 under alternating electromagnetic wave fields caused by mismatched motion of phases having different charges and masses that leads to dipole polarization.Furthermore,an investigation of sources for this effect provides valuable insights into the interrelationship that exists between impedance matching characteristics and electromagnetic wave absorption performance,which should highly benefit future designs of novel halide perovskite-based absorbing materials. 展开更多
关键词 Cs₂SnI₆‑based perovskite dipole polarization electromagnetic wave absorber I vacancies
暂未订购 下载PDF
Vanadate-based photocatalytic materials:A perspective on synthesis approaches and pollutants photocatalytic degradation 认领 引用 被引量：1
2
作者 M.El ouardi M.Arab +2 位作者 M.Saadi A.BaQais H.Ait Ahsaine 《Nano Materials Science》 EI CAS CSCD 2026年第4期779-800,共22页
The progress of vanadate and vanadate-based composites has become very popular in the photocatalytic treatment of sewage.Many researches have been done on ortho-vanadates based on MVO4(M=Bi and Fe)and AgVO3,Ag_(... The progress of vanadate and vanadate-based composites has become very popular in the photocatalytic treatment of sewage.Many researches have been done on ortho-vanadates based on MVO4(M=Bi and Fe)and AgVO3,Ag3VO4as well as vanadate based on MV2O6,M3V2O8,M2V2O7of which(M=Zn,Cu,Ni,Co)have been applied as photo-catalysts for the remediation of wastewater.This category of compounds presents several fascinating characteristics associated with great stability,expansion pensive,and easy bio-functionalization.Multiple works have mentioned methods and strategies to conceive highly efficient vanadate photo-catalysts having different morphologies,facets,shapes,and oxygen vacancies.Here we have reviewed the synthesis methods of vanadium-based photo-catalysts,and the photosensitization mechanism in which the organic dye acts as both photosensitizer and sample to be decomposed.In addition,we have highlighted the overall sequential photocatalytic pathways and recent advances in the decomposition of different pollutants such as dyes and antibiotics.The three-step photocatalytic process of vanadate photo-catalysts has been described.Finally,the existing status,the challenges to enhance photo-activity,and potential future scenarios are briefly summarized. 展开更多
关键词 photocatalytic treatment mv o agvo synthesis approaches remediation wastewaterthis mvo vanadate based photocatalytic materials ortho vanadates
暂未订购 下载PDF
A Review on Cracking in Laser Additive Manufacturing of Nickel-Based Superalloys:Types,Formation Mechanisms,and Suppression Strategies 认领 引用 被引量：1
3
作者 Tianxiang Lin Ciying Li +7 位作者 Hongkai Zhou Rui Chen Yi Li Can Cui Lizhang Zhang Maoyuan Li Zhenzhong Wang Wei‑Wei Xu 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期122-169,共48页
Nickel-based superalloys(Ni-based superalloys)have attracted extensive attention in laser additive manufacturing(LAM)due to their capability to directly fabricate complex and high-performance structural components.How... Nickel-based superalloys(Ni-based superalloys)have attracted extensive attention in laser additive manufacturing(LAM)due to their capability to directly fabricate complex and high-performance structural components.However,the rapid melting and solidification inherent to LAM result in intense thermal cycling,which induces high residual stresses and microstructural heterogeneity within the fabricated parts.Among them,cracks,as the most destructive defects,can have a typical crack density of over five per mm2 without optimized processes.Moreover,the sudden failures of components caused by cracks account for more than 40%of the total failures of additively manufactured nickel-based superalloy components.They can rapidly expand along grain boundaries or brittle phases,significantly weakening the mechanical properties of components and causing sudden failures.To achieve highly reliable additive manufacturing components,it is essential to conduct in-depth research on the types,formation mechanisms of cracks in Ni-based superalloys,and their relationships with microstructure,residual stress,etc.This paper systematically reviews the crack characteristics and formation mechanisms of Ni-based superalloys during the laser additive manufacturing process,post-manufacturing,and service stages and comprehensively summarizes the current mainstream crack suppression strategies,specifically including process parameter optimization,residual stress regulation,alloy composition design,and subsequent post-treatment technologies,as well as incorporating emerging machine learning-assisted methods.The review aims to provide theoretical insights and technical guidance toward the development of crack-free Ni-based superalloy components fabricated by laser additive manufacturing. 展开更多
关键词 crack formation mechanism crack suppression strategy crack types laser additive manufacturing Ni‑based superalloys
暂未订购 下载PDF
Numerical Mesoscale Analysis of Rubber Size, Rubber Content, and Specimen Size Effects on Crumb Rubber Concrete Using BFEM 认领 引用 被引量：1
4
作者 Mahmoud M.A.Kamel Yu Fu +2 位作者 S.Z.Abeer Zaman Mohamed Al-Delfi Yijiang Peng 《Computers, Materials & Continua》 SCIE EI 2026年第6期1045-1063,共19页
Crumb rubber concrete(CRC)has emerged as a sustainable solution to the environmental challenges posed by rubber waste.This study introduces an advanced mixed-random-aggregate mesoscale model for CRC based on the Base ... Crumb rubber concrete(CRC)has emerged as a sustainable solution to the environmental challenges posed by rubber waste.This study introduces an advanced mixed-random-aggregate mesoscale model for CRC based on the Base Force Element Method(BFEM)and the complementary energy principle.The model incorporates different rubber substitution ratios(0%-30%),rubber particle sizes(2 mm and 4 mm),and specimen dimensions(edge lengths of 100,150,and 300 mm).These parameters are considered to investigate their effects on the mechanical properties and failure mechanisms of CRC.Accordingly,the numerical results include stress-strain responses,elastic modulus,and damage progression patterns.The results indicate that increasing rubber content leads to a pronounced reduction in both tensile and compressive strengths.This drop occurs mainly because rubber particles have a much lower elastic modulus.Thus,they represent stress concentrators and weak points,which accelerate the sample failure.Moreover,for the same replacement ratio,CRC with smaller rubber particles(2 mm)exhibits lower strength than CRC with larger particles(4 mm).This reduction occurs because the finer particles create more interfacial areas,introducing more sites for defect initiation and micro-cracks.In addition,increasing specimen size is associated with reduced strength and elastic modulus,highlighting size-dependent phenomena in CRC.The numerical predictions show good agreement with experimental results reported in the literature. 展开更多
关键词 Base force element method(BFEM) complementary energy principle crumb rubber concrete(CRC) meso-damage analysis random aggregate model
暂未订购 下载PDF
Algorithm improvement for traffic sign detection based on YOLOv8 认领 引用 被引量：1
5
作者 Dongmei MA Xuelong LYU Qirong ZHU 《Optoelectronics Letters》 EI 2026年第2期92-97,共6页
An improved algorithm for traffic sign detection based on YOLOv8 is proposed. Firstly, YOLOv8n is used as the base model of the network, the inverted residual mobile block and exponential moving average(iRMB_EMA) atte... An improved algorithm for traffic sign detection based on YOLOv8 is proposed. Firstly, YOLOv8n is used as the base model of the network, the inverted residual mobile block and exponential moving average(iRMB_EMA) attention mechanism is used to improve the model's ability to perceive small targets, which reduces the leakage detection phenomenon of the model, convolution(Conv) is upgraded to receptive-field attention convolution(RFAConv), which improves the model's ability to deal with details and complexity in the image, the idea of adaptive spatial feature fusion(ASFF) is introduced in the detection head, and the small target detection layer, a four-head detection head is designed to improve the model's ability to detect small targets, solves the case of feature loss due to cross-scale fusion, and use of the Inner-minimum points distance intersection over union(MPDIoU) loss function provides a more accurate loss metric by calculating the distance of key points between the predicted and true frames. The experimental results of this algorithm on the public dataset CCTSDB show that the improved model mean average precision(m AP) reaches 82.6%, which is 4% higher than the YOLOv8n. The experimental results of dataset TT100k show that the m AP reaches 84.5%, which is 7.1% higher than the YOLOv8n. This algorithm effectively improves the problem of detail perception and leakage of the model in the detection of small targets, and has a significant detection effect compared to other algorithms. 展开更多
关键词 inverted residual mobile block traffic sign detection perceive small targets leakage detection phenomenon YOLOv base model deal details
暂未订购 下载PDF
Explicit Semantic-Base-Empowered Communications for 6G Mobile Networks 认领 引用
6
作者 Fengyu Wang Yuan Zheng +3 位作者 Wenjun Xu Junxiao Liang Ping Zhang Zhu Han 《Engineering》 SCIE EI CSCD 2026年第1期34-44,共11页
Increasing demands for massive data transmission pose significant challenges to communication systems.Compared with traditional communication systems that focus on the accurate reconstruction of bit sequences,semantic... Increasing demands for massive data transmission pose significant challenges to communication systems.Compared with traditional communication systems that focus on the accurate reconstruction of bit sequences,semantic communications(Sem Coms),which aim to deliver information connotation,are regarded as a key technology for sixth-generation(6G)mobile networks.Most current Sem Coms utilize an end-to-end(E2E)trained neural network(NN)for semantic extraction and interpretation,which lacks interpretability for further optimization.Moreover,NN-based Sem Coms assume that the application and physical layers of the protocol stack can be jointly trained,which is incompatible with current digital communication systems.To overcome those drawbacks,we propose a Sem Com system that employs explicit semantic bases(Sebs)as the basic units to represent semantic connotations.First,a mathematical model of Sebs is proposed to build an explicit knowledge base(KB).Then,the Seb-based Sem Com architecture is proposed,including both a communication mode and a KB update mode to enable the evolution of communication systems.Sem-codec and channel codec modules are designed specifically,with the assistance of an explicit KB for the efficient and robust transmission of semantics.Moreover,unequal error protection(UEP)is strategically implemented,considering communication intent and the importance of Sebs,thereby ensuring the reliability of critical semantics.In addition,a Seb-based Sem Com protocol stack that is compatible with the fifth-generation(5G)protocol stack is proposed.To assess the effectiveness and compatibility of the proposed Seb-based Sem Coms,a case study focusing on an image-transmission task is conducted.The simulations show that our Seb-based Sem Coms outperform state-of-the-art works in learned perceptual image patch similarity(LPIPS)by over20%under varying communication intents and exhibit robustness under fluctuating channel conditions,highlighting the advantages of the interpretability and flexibility afforded by explicit Sebs. 展开更多
关键词 Semantic communications Semantic bases Knowledge base Unequal error protection
暂未订购 下载PDF
高性能生物基仿皮革材料的研究 认领 引用 被引量：3
7
作者 程正平 刘杰 +4 位作者 靳云 丁志文 庞晓燕 郭松 Mohammed Hussein Seid 《中国皮革》 CAS 2026年第3期7-13,共7页
为开发兼具优异物理性能与环保特性的皮革替代品,本文提出了一种基于动植物基纤维复配的高性能生物质仿皮革材料的创新工艺。该工艺首先利用制革废料中的动物基纤维,通过水相成网技术制备动物基纤维基布;同时,将莱赛尔纤维与棉纤维按一... 为开发兼具优异物理性能与环保特性的皮革替代品,本文提出了一种基于动植物基纤维复配的高性能生物质仿皮革材料的创新工艺。该工艺首先利用制革废料中的动物基纤维,通过水相成网技术制备动物基纤维基布;同时,将莱赛尔纤维与棉纤维按一定比例共混,采用非织造针刺技术制备植物基纤维基布;随后,将两种基布热压复合,并进行后整饰处理。试验结果表明,当植物基纤维与动物基纤维的质量比为1∶3,且棉纤维与莱赛尔纤维的质量比为1∶2时,所得材料的综合性能最佳。其抗张强度达到9.0 N/mm2,断裂伸长率为31.0%,耐干、湿摩擦色牢度均不低于4级。此外,材料的各项化学安全指标均符合生态皮革标准,甲醛、六价铬、五氯苯酚及23种可分解有害芳香胺偶氮染料等均未检出。本文为高值化利用制革固体废弃物和开发可持续皮革替代材料提供了新的技术路径。 展开更多
关键词 动物基纤维 植物基纤维 复合基布 仿皮革材料 可持续材料
暂未订购 下载PDF
贵州省2024年人腺病毒流行病学及基因特征 认领 引用
8
作者 吴萍 庄丽 +1 位作者 柯倩 郑菊 《中国热带医学》 CAS 北大核心 2026年第4期591-597,共7页
目的了解贵州省2024年流感样病例中人腺病毒的流行病学规律,进一步分析人腺病毒的hexon/penton base/fiber基因特征。方法收集贵州省2024年10823份流感样病例,通过多重荧光定量PCR方法对其进行人腺病毒(human adenovirus,HAdV)、鼻病毒(... 目的了解贵州省2024年流感样病例中人腺病毒的流行病学规律,进一步分析人腺病毒的hexon/penton base/fiber基因特征。方法收集贵州省2024年10823份流感样病例,通过多重荧光定量PCR方法对其进行人腺病毒(human adenovirus,HAdV)、鼻病毒(rhinovirus,HRV)、新型冠状病毒(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2)、流感病毒(influenza virus,IFV)、呼吸道合胞病毒(respiratory syncytial virus,RSV)、副流感病毒(parainflu⁃enza virus,HPIV)、普通冠状病毒(common coronavirus,HCoV)、偏肺病毒(metapneumovirus,HMPV)、肠道病毒(enterovi⁃rus,EV)、博卡病毒(bocavvirus,HBoV)和肺炎支原体(Mycoplasma pneumoniae,MP)共11种常见病原体检测;采用SPSS 22.0对检测数据进行χ2检验或Fisher检验分析;筛选Ct值≤30的HAdV阳性样本进行hexon/penton base/fiber基因测序及进化分析。结果贵州省10823例病例中,HAdV总检出率为4.56%(493/10823),居病原体第4位。不同性别、不同年龄组及不同季节检出率差异有统计学意义(P<0.05),男性检出率较高(4.99%),学龄儿童(5~<15岁)感染率最高(8.79%),夏季为高发季节。混合感染率为1.64%,以HAdV与HRV混合感染为主(0.28%)。基因分型显示33株HAdV中,HAdV-B型20株(B3型16株、B21型4株),HAdV-C型9株(C1型2株、C2型3株、C5型4株),3株由HAdV-C1、C2组成的潜在重组病毒,1株由HAdV-C2、C6组成的潜在重组病毒。结论HAdV是贵州省2024年流感样病例的主要病原体之一,贵州省HAdV流行以B3型为主,可能存在基因重组现象,需关注学龄儿童及混合感染的防控。 展开更多
关键词 流感 人腺病毒 hexon/penton base/fiber基因 重组病毒 基因测序
暂未订购 下载PDF
我国高校分类的制度演进、现实困境与改革路径 认领 引用 被引量：7
9
作者 邬大光 李乐帆 《中国高教研究》 CSSCI 北大核心 2026年第4期14-22,共9页
高等学校分类发展是高等教育体系走向成熟的重要标志。我国高校分类体系在制度形成和演化中,办学层次的纵向等级、行业学科的横向分类与重点建设的资源配置三者相互嵌套,使高校分类逐渐滑入“名为分类,实则分等”的运行逻辑。这一困境... 高等学校分类发展是高等教育体系走向成熟的重要标志。我国高校分类体系在制度形成和演化中,办学层次的纵向等级、行业学科的横向分类与重点建设的资源配置三者相互嵌套,使高校分类逐渐滑入“名为分类,实则分等”的运行逻辑。这一困境受文化、财政与治理的共同制约:单一化的成功标准消解了类型认同,选优而非托底的财政逻辑削弱了底线公平,趋同化的评价制度使分类规则持续失灵。推动高校分类真正落地,需以财政重构为切入口,建立分类保障机制与差异化拨款体系,同步推进分类型绩效评价与治理工具矫正,以制度变革为文化转轨创造现实依托,逐步构建类型多元与底线公平的高等教育分类体系。 展开更多
关键词 高等教育 高校分类 分类发展 分类治理
暂未订购 下载PDF
Effect of high-temperature aging treatment on strength enhancement of the as-cast Mg-8Li-6Zn-1Y(in wt.%)alloy 认领 引用
10
作者 Baojie Wang Dongliang Wang +2 位作者 Daokui Xu Zishuo Chen Shuo Wang 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2026年第7期126-138,共13页
Based on the microstructural evolution of an as-cast Mg-8Li-6Zn-1Y alloy after being performed high-temperature aging treatment at 300°C,330°C,and 400°C,it reveals that nano-sized quasi-crystalline stru... Based on the microstructural evolution of an as-cast Mg-8Li-6Zn-1Y alloy after being performed high-temperature aging treatment at 300°C,330°C,and 400°C,it reveals that nano-sized quasi-crystalline structured I-phase particles are precipitated inα-Mg matrix,whereas the high density of MgLiZn particles present inβ-Li matrix are mostly dissolved during thermal aging process.With increasing aging temperature and time,the size and quantity of precipitated I-phase particles increase gradually.For differently aged samples,the hardness values ofβ-Li matrix phase increase from 75 HV to 115 HV during the initial aging for up to 1 h and then stabilize at 115 HV with further prolonging the aging time,whereas the hardness values ofα-Mg matrix phase change slightly and vary from 62 HV to 70 HV.The maximum macro hardness values corresponding to peak-aged conditions of 300°C/16 h,330°C/8 h,and 400°C/4 h are respectively 89 HV,96 HV,and 87 HV.Tensile results demonstrate that the 330°C/8 h sample has the yield strength of 179 MPa and the ultimate tensile strength of 233 MPa,whereas those of as-cast sample are 116 MPa and 166 MPa,respectively.The main strengthening mechanism of high-temperature aged samples is attributed to the precipitation strengthening of nano-sized I-phase particles and solid solution strengthening because of the dissolution of MgLiZn phase. 展开更多
关键词 Mg-Li based alloy I-phase Thermal aging Precipitation Mechanical behavior
暂未订购 下载PDF
A Review on Cu-Based Catalysts for Dehydrogenation of Chemical Hydrides 认领 引用
11
作者 Yixing Luo Qilu Yao +4 位作者 Jianhui Xia Yongjin Zou Lixin Chen Ashish K.Singh Zhang‑Hui Lu 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期237-283,共47页
Hydrogen(H2)plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable,clean,and pollution-free.Nevertheless,the secure and effective production-storage-tr... Hydrogen(H2)plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable,clean,and pollution-free.Nevertheless,the secure and effective production-storage-transportation of H2 presents critical challenges.Carbon-based(e.g.,HCOOH),boron-based(e.g.,NaBH4,NH3BH3,and N2H4BH3),and nitrogen-based(e.g.,N2H4·H2O and NH3)chemical hydrides are considered to be prospective chemical hydrogen storage materials that effectively avoid the problems of storage and transportation of H2.The exploration of advanced catalysts with specific selectivity,satisfactory activity,and excellent chemical stability is essential for H2 production from the abovementioned chemical hydrides.Cu-based catalysts are broadly applied in the dehydrogenation of chemical hydrides for H2 production owing to their properties of cost-effectiveness,unique filled electronic configuration,and appropriate surface adsorption energy.Here,we review and highlight advanced Cu-based heterogeneous catalysts(e.g.,monometallic,bimetallic,and multimetallic catalysts,single-atom catalysts,and photocatalysts)for efficient H2 production from the dehydrogenation of carbon-based,boron-based,and nitrogen-based chemical hydrides.Finally,primary challenges and future prospects of Cu-based heterogeneous catalysts for efficient H2 production from the dehydrogenation of chemical hydrides are also discussed. 展开更多
关键词 chemical hydrides Cu‑based catalysts dehydrogenation reactions hydrogen
暂未订购 下载PDF
Design,synthesis,DNA interaction,and dual catalytic properties of tetranuclear holmium(Ho)complex 认领 引用
12
作者 GUAN Xiaofen KANG Liuqing +3 位作者 ZHANG Yingyue XUE Linjing LI Xinyu WANG Wenmin 《无机化学学报》 SCIE CAS CSCD 北大核心 2026年第7期1543-1554,共12页
A tetranuclear Ho(Ⅲ)-based complex[Ho4(L)2(dbm)6(CH3O)4](1)was synthesized via solvothermal methods,where HL=(E)-2-hydroxy-3-methoxy-N′-[(6-methoxypyridin-2-yl)methylene]benzohydrazide and Hdbm=dibenz... A tetranuclear Ho(Ⅲ)-based complex[Ho4(L)2(dbm)6(CH3O)4](1)was synthesized via solvothermal methods,where HL=(E)-2-hydroxy-3-methoxy-N′-[(6-methoxypyridin-2-yl)methylene]benzohydrazide and Hdbm=dibenzoylmethane.Structural characterization revealed that this complex is composed of four Ho3+ions,six dbm-ions,two L-ions,and four coordinated CH3O-ions.The interaction mechanisms between ligand HL,1 and calf thymus DNA(CT-DNA)were investigated by using UV-Vis spectroscopy,fluorescence titration,and cyclic voltammetry.The results indicated that 1 can interact with DNA via intercalation.Catalytic tests showed that 1 exhibits remarkable catalytic activity,capable of catalyzing the cycloaddition reaction of CO2 with epoxides and the Knoevenagel condensation reaction between malononitrile and aldehydes.CCDC:2488751. 展开更多
关键词 tetranuclear Ho(Ⅲ)‑based complex polydentate Schiff base DNA interaction catalytic performance CO2cycloaddition Knoevenagel condensation reaction
暂未订购 下载PDF
Application of an efficient adenine base editing system in developing Danshen(Salvia miltiorrhiza)dinitroaniline-resistant germplasm 认领 引用
13
作者 Huanan Han Ziwen Wu +4 位作者 Zaijie Zhang Yusen Qu Yingcan Wang Pingping Wang Changle Ma 《Horticultural Plant Journal》 SCIE CAS CSCD 2026年第5期1234-1244,共11页
Chinese herbal medicine Danshen(Salvia miltiorrhiza)has suggested therapeutic effects on cardiovascular and cerebrovascular diseases,inflammatory reactions and tumors,perhaps due to secondary metabolites,such as tansh... Chinese herbal medicine Danshen(Salvia miltiorrhiza)has suggested therapeutic effects on cardiovascular and cerebrovascular diseases,inflammatory reactions and tumors,perhaps due to secondary metabolites,such as tanshinone.Danshen is sensitive to most broad-spectrum herbicides,thus it is a challenge to manage weeds during planting.Although CRISPR/Cas gene editing has been used to knock out important genes in Danshen,the more accurate base editing method has rarely been applied to this species.We developed an efficient adenine base editing system for Danshen and observed its editing effect in callus and transgenic plants.To demonstrate the efficacy of this technique,we generated several novel Danshen germplasms with mutant a-tubulins,some of which displayed resistance to a dinitroaniline herbicide,pendimethalin,in Danshen planting.We also found distinct effects of the different Danshen mutant tubulin homologues on dinitroaniline sensitivity,perhaps indicating a functional differentiation of the a-tubulin genes.Our work provides a new gene modification method for Danshen breeding,which might be extended to other medicinal plants. 展开更多
关键词 Medicinal plant Adenine base editor a-Tubulin Pendimethalin Herbicide resistance
暂未订购 下载PDF
Pharmacokinetics,efficacy,and safety of a novel aripiprazole microsphere-based long-acting injectable formulation for schizophrenia:A multicenter,randomized controlled trial 认领 引用
14
作者 An-Ning Li Sheng-Chun Jin +14 位作者 De-Wei Shang Jian-Xiong Guo Hua-Li Lin Ming Zhang Bo Wei Feng Wan Yun-Long Tan Li-Li Wang Jian-Chu Zhou Ping Liu Lian-Lian Fan Ju-Shui Sun Bin Chen Yimin Cui Gang Wang 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2026年第1期305-308,共4页
Schizophrenia is a severe and chronic psychiatric disorder with a lifetime prevalence of approximately 0.7%–1%worldwide[1].Aripiprazole is widely used for schizophrenia treatment,and known as a dopamine system stabil... Schizophrenia is a severe and chronic psychiatric disorder with a lifetime prevalence of approximately 0.7%–1%worldwide[1].Aripiprazole is widely used for schizophrenia treatment,and known as a dopamine system stabilizer due to its partial agonist activity as the dopamine-2(D2)and serotonin 5-hydroxytryptamine 1A(5-HT1A)receptors,as well as antagonist action at the 5-HT2A receptors[2].The investigational microsphere-based aripiprazole injection in this study is a novel long-acting formulation designed to optimize the release profile at the dose of 350 mg monthly.The objective of this study was to evaluate the pharmacokinetics,efficacy,and safety of the microsphere-based formulation,particularly the fluctuations in the peak-to-trough plasma concentration ratio. 展开更多
关键词 psychiatric disorder schizophrenia long acting injectable pharmacokinetics safety aripiprazole efficacy microsphere based
暂未订购 下载PDF
Achieving Ambient-Temperature Fast Hydrogenation Properties in Ga-Doped Mg-Ni Alloy:Dual-Phase Synergistic Catalysis and Stacking Fault Channels 认领 引用
15
作者 Shiyang Hu Xin Ding +5 位作者 Wenchao Cao Xiangfeng Ma Hongxian Shen Yong Zhang Jingjie Guo Ruirun Chen 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期712-728,共17页
The high operating temperatures and sluggish kinetics of Mg-based hydrogen storage materials(HSMs)are urgently being addressed.In this work,a novel Mg-Ni-Ga HSM with dual-phase synergistic catalysis is developed,inclu... The high operating temperatures and sluggish kinetics of Mg-based hydrogen storage materials(HSMs)are urgently being addressed.In this work,a novel Mg-Ni-Ga HSM with dual-phase synergistic catalysis is developed,including the fishbone-like Mg3Ni2Ga1 catalytic phase and the Mg2Ni phase with stacking faults(SFs).The spheroidization of Mg grains is inhibited by the pinning effect of the Mg3Ni2Ga1 phase,and the high-energy Mg grain boundaries are obtained.High-density SFs are induced in the Mg2Ni phase via Ga dissolution.It is worth noting that Mg94.5Ni5Ga0.5 alloy absorbs 0.37 wt%H2 merely at 25℃,and absorbs 2.71 wt%H2 at 150℃ under even 0.1 MPa.The dehydrogenation activation energy is significantly decreased from 81.86 kJ mol-1 in Mg95Ni5 alloy to 67.68 kJ mol-1.The room temperature and low-pressure hydrogenation performance are achieved through these multiphase synergistic catalysis:H2 molecule dissociation facilitated by the Mg3Ni2Ga1 phase,hydride nucleation promoted by high-energy Mg grain boundaries,additional rapid diffusion channels for H atoms,and the enhanced"hydrogen pump"effect provided by the Mg2Ni phase with SFs structure. 展开更多
关键词 hydrogen storage kinetics Mg‑based alloys stacking faults
暂未订购 下载PDF
Tensile creep anisotropy and analysis based on composite theory of duplex Mg-9Li-4Al-1Zn alloy with geometric and mechanical heterogeneity 认领 引用
16
作者 Takahiro Mineta Furawa Saijo Haruto Saijo 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2026年第4期358-369,共12页
The creep anisotropy of a duplex Mg-9Li-4Al-1Zn(LAZ941)alloy,possessing a lamellar microstructure with both geometric and mechanical heterogeneity,was systematically investigated.The minimum creep rate and fracture be... The creep anisotropy of a duplex Mg-9Li-4Al-1Zn(LAZ941)alloy,possessing a lamellar microstructure with both geometric and mechanical heterogeneity,was systematically investigated.The minimum creep rate and fracture behavior were dependent on the geometric relationship between the tensile stress axis and the phase boundaries.Specifically,the creep resistance was superior when the stress axis was parallel to the phase boundaries compared to the perpendicular orientation.This anisotropy was found to originate from the distinct mechanical responses of the layered microstructure,which can be consistently explained by a composite theory.When loaded parallel to the phase boundaries,the hard and soft phases deform under an isostrain condition.As a result,the macroscopic creep behavior is strongly influenced by the more creep-resistant α phase,leading to a low creep rate and a stress exponent approaching that of the α phase.Conversely,when loaded perpendicular to the phase boundaries,the constituent phases deform under an isostress condition.This concentrates strain within the softer β phase,resulting in a high creep rate and a stress exponent approaching that of the β phase.These findings provide a foundational framework for the composite-theory-based design of materials possessing a lamellar structure. 展开更多
关键词 Mg-Li based alloy Creep Anisotropy Composite theory Spinodal decomposition
暂未订购 下载PDF
Distributed Load-Sharing and Loss Optimization Within Voltage Safety Constraints for Meshed DC Microgrid 认领 引用
17
作者 Yu Zhang Yan-Wu Wang Xiao-Kang Liu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2026年第6期1518-1520,共3页
Dear Editor,This letter presents anε-exact penalty-based scalarization method to solve the constrained multi-objective optimization problem of load sharing and transmission loss minimization within voltage safety con... Dear Editor,This letter presents anε-exact penalty-based scalarization method to solve the constrained multi-objective optimization problem of load sharing and transmission loss minimization within voltage safety constraints in a meshed direct current(DC)microgrid.A distributed predefined-time optimization algorithm is designed and implemented by deploying consensus-based observers to obtain an optimal solution.The proposed algorithm is verified by simulations and hardware-in-the-loop experiments in cases of load variation,plugand-play,grid change,and by comparative study. 展开更多
关键词 consensus based observers predefined time optimization transmission loss minimization load sharing distributed load sharing voltage safety constraints exact penalty based scalarization meshed DC microgrid
暂未订购 下载PDF
Excited-state intramolecular proton transfer(ESIPT)-triggered photochromic materials 认领 引用
18
作者 Hao Sun Chenzi Li +6 位作者 Wanting Yu Yang Chen Zhe Sun Zhuofei Li Wei Huang Dayu Wu Liangliang Zhu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第6期27-38,共12页
Photochromic materials have drawn considerable interest in chemical and material sciences,owing to their unique photo-responsive properties and transformative potential in smart material applications.Among these,ESIPT... Photochromic materials have drawn considerable interest in chemical and material sciences,owing to their unique photo-responsive properties and transformative potential in smart material applications.Among these,ESIPT-triggered photochromic systems stand out as a particularly promising subclass because of their exceptional photochromic property.However,existing reviews have primarily concentrated on Schiff base derivatives within this category,largely overlooking critical advancements in three key dimensions:(1)The discovery of novel ESIPT-triggered structural frameworks beyond traditional systems,(2)innovative synthetic methodologies enabling precise control of photochromic behaviors in both solid and solution states,and(3)the emergence of unprecedented functional properties driving cutting-edge applications.These oversights have created a significant knowledge gap in comprehensively understanding the rapid evolution of ESIPT-triggered photochromic materials.Therefore,this review systematically summarizes recent breakthroughs through three analytical lenses:First,we establish a structural taxonomy of ESIPT photochromophores,elucidating design principles that govern their performance.Second,we summarize advanced construction strategies that can synthesize tailored ESIPT photochromophores in different phase states.Third,we summarize the expanding application landscape of ESIPT photochromic materials in various functional domains.By integrating fundamental understanding with application-oriented perspectives,this work is expected to inspire the development of smart materials and photoresponsive systems. 展开更多
关键词 Excited-state intramolecular proton transfer (ESIPT) Photochromism Smart materials Schiff base Anti-counterfeiting Sensor
暂未订购 下载PDF
Pre-Formation of LiF-Rich Interfaces on Prelithiated Si/C Anodes for High-Energy Lithium-Ion Batteries 认领 引用
19
作者 Wen‑Jie He Wei Xu +7 位作者 Xiu‑Ying Jin Bo‑Nan Wang Wen‑Jie Liu Yue Xiao Gang Qin Takayuki Ichikawa Gai Wu Teng‑Fei Zhang 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期822-834,共13页
Prelithiation is effective for compensating active lithium-ion(Li+)loss in silicon(Si)-based battery electrode materials.However,owing to the dynamic growth of the solid electrolyte interface(SEI),capacity fading r... Prelithiation is effective for compensating active lithium-ion(Li+)loss in silicon(Si)-based battery electrode materials.However,owing to the dynamic growth of the solid electrolyte interface(SEI),capacity fading remains the biggest challenge for the industrialization of Si electrodes.To address this problem,a novel ether-based prelithiation reagent was rationally designed by exploiting the weak solvent-solute coordination and the competitive reduction mechanism among electrolyte components.Precise regulation of the Li+solvation structure enhanced Li+transport during prelithiation,achieving an exceptional initial Coulombic efficiency(ICE)of~100%for the Si/carbon(Si/C)anode after performing contact prelithiation for 2 min.Furthermore,the lithium fluoride(LiF)-rich interface with high mechanical toughness was pre-formed to assist in the formation of a stable SEI controlling the lowest unoccupied molecular orbital(LUMO)energy and binding energy of the prelithiation reagent,thereby improving the half-cell cycle performance.Consequently,the ICE of the full-cell incorporating the prelithiated Si/C anode increased by 40%compared with that containing as-received materials,and the corresponding energy density was 551.2 Wh kg-1 based on the electrode material after 3 cycles.Furthermore,theoretical calculations combined with in situ characterization techniques confirmed the strong potential of the contact prelithiation design strategy for large-scale industrial applications. 展开更多
关键词 initial coulombic efficiency prelithiation Si‑based anode solid electrolyte interface solvation structure
暂未订购 下载PDF
新医科背景下医药院校药学专业临床药学课程教学改革与实践 认领 引用 被引量：1
20
作者 何希瑞 杨燕 +1 位作者 任娟 左满花 《高教学刊》 2026年第6期147-150,共4页
结合新医科背景下临床药学人才发展现状与需求,探索药学专业本科生临床药学课程教学的新方法和新途径。该研究选取2019年9月至2023年12月生物工程学院的2019级、2020级、2021级药学本科生为研究对象,综合运用传统授课模式(Lecture-Based... 结合新医科背景下临床药学人才发展现状与需求,探索药学专业本科生临床药学课程教学的新方法和新途径。该研究选取2019年9月至2023年12月生物工程学院的2019级、2020级、2021级药学本科生为研究对象,综合运用传统授课模式(Lecture-Based Learning,LBL)、基于团队的学习(Team-Based Learning,TBL)及基于案例的学习(Case-Based Learning,CBL)与思政协同教学模式,比较各年级学生对临床药学教学满意度并综合分析不同教学方法的应用效果。研究发现LBL/TBL/CBL与思政协同教学模式在临床药学课程教学中的实践效果良好,一定程度上促进学生综合素质的提高。药学本科生在职业认同感、学习主动性、PPT制作与讲解能力、科普视频拍摄及剪辑能力、临床用药问题分析与解决能力方面提高显著。特别是,与2019级和2020级学生相比,2021级学生对自我能力提升的正面评价提升显著。因此,LBL/TBL/CBL与思政协同教学模式可提高临床药学课程的教学质量,促进该门课程的规范化优质化建设,为高校培养高层次应用型临床药学人才提供有益参考。 展开更多
关键词 传统授课模式 基于团队的学习 基于案例的学习 课程思政 教学改革
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 250 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈