检索结果-南通市图书馆

Efficient and Stab.e Perovskite Solar Cells and Modules Enab.ed b. Tailoring Additive Distrib.tion According to the Film Growth Dynamics

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

Nano-Micro Letters 2025年第2期17卷 387-400页

作者： Mengen ma Cuiling Zhang Yujiao ma Weile Li Yao Wang Shaohang Wu Chong Liu Yaohua mai Institute of New Energy Technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key Lab.ratory of New Semiconductors and Devices of Guangdong Higher Education Institutes Jinan UniversityGuangzhou 510632People’s Republic of China Guangdong Mellow Energy Co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China

Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in b.ade-coating *** this work,we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film,resulting in the differences of additive *** then tailor-designed an additive molecule named 1,3-b.s(4-methoxyphenyl)thiourea to ob.ain films with fewer defects and holes at the b.ried interface,and prepared perovskite solar cells with a certified efficiency of 23.75%.Furthermore,this work also demonstrates an efficiency of 20.18%for the large-area perovskite solar module(PSM)with an aperture area of 60.84 cm^(2).The PSM possesses remarkab.e continuous operation stab.lity for maximum power point tracking of T_(90)>1000 h in amb.ent air.

关键词： Gas quenching Additive distrib.tion b.ried passivation b.ade coating Crystallization dynamics

Near-perfect replication on amorphous alloys through active force modulation b.sed on machine learning/neural network parameter prediction

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 181-191页

作者： Senkuan Meng Zheng Wang Ruisong Zhu Ruijie Liu Jiang ma Lina Hu Weihua Wang Key Lab.ratory for Liquid-Solid Structural Evolution and Processing of materials (Ministry of Education) School of Materials Science and Engineering Shandong University College of Mechatronics and Control Engineering Shenzhen University Songshan Lake materials Lab.ratory Institute of Physics Chinese Academy of Sciences

As a microforming technique, micro/nano-structural replication possesses advantages of high precision and efficiency. With the remarkab.e superplasticity in the supercooled liquid region, amorphous alloys or metallic glasses(MGs) are regarded as ideal materials for miniature fab.ication. However, due to the intrinsic metastab.e nature of supercooled liquids, the design of imprinting processes for MGs poses a challenge. In the past, process parameters have largely relied on trial-and-error *** this work, a low-frequency active force modulation system is employed to apply a stab.e, precise, and real-time feedb.ck stress field for imprinting of MG samples. Low-frequency vib.ations can facilitate the filling of microstructures on the template surface b. reducing the effective viscosity of the supercooled liquid. With the dataset composed of orthogonal experiments, a machine learning strategy b.sed on b.ck-propagation(b.) neural networks was utilized to construct a 3D parameter space for temperature, stress, and time, and to predict the corresponding filling ratio. Furthermore, the optimal comb.nation of imprinting process parameters was identified, and its filling ratio was experimentally validated to reach as high as 0.94. The near-perfect replication of microstructures confirms the superiority of the active force modulation system and the data-driven strategy of machine learning-assisted parameter design. At the same time, this one-step microforming process provides a new approach to addressing the accuracy-cost trade-off dilemma in precision manufacturing.

关键词： metallic glass amorphous alloy microforming imprinting machine learning

Advances in Graphene‑b.sed Electrode for Trib.electric Nanogenerator

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 378-403页

作者： b.n Xie Yuanhui Guo Yun Chen Hao Zhang Jiawei Xiao maoxiang Hou Huilong Liu Li ma Xin Chen Chingping Wong State Key Lab.ratory of Precision Electronic manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearab.e electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexib.e and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from prob.ems such as durab.lity,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs b.sed on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-b.sed TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-b.sed TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-b.sed TENGs.

关键词： Trib.electric nanogenerator Precision processing Graphene electrode Self-powered sensor

Recomb.nant chitinase-3-like protein 1 alleviates learning and memory impairments via M2 microglia polarization in postoperative cognitive dysfunction mice

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第9期20卷 2727-2736页

作者： Yujia Liu Xue Han Yan Su Yiming Zhou Minhui Xu Jiyan Xu Zhengliang ma Xiaoping Gu Tianjiao Xia Department of Anesthesiology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina Medical School Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Lab.ratory of Molecular Medicine Nanjing UniversityNanjingJiangsu ProvinceChina State Key Lab.ratory of Pharmaceutical b.otechnology Nanjing UniversityNanjingJiangsu ProvinceChina Department of Anesthesiology Zhongshan HospitalFudan UniversityShanghaiChina

Postoperative cognitive dysfunction is a seve re complication of the central nervous system that occurs after anesthesia and surgery,and has received attention for its high incidence and effect on the quality of life of *** date,there are no viab.e treatment options for postoperative cognitive *** identification of postoperative cognitive dysfunction hub.genes could provide new research directions and therapeutic targets for future *** identify the signaling mechanisms contrib.ting to postoperative cognitive dysfunction,we first conducted Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses of the Gene Expression Omnib.s GSE95426 dataset,which consists of mRNAs and long non-coding RNAs differentially expressed in mouse hippocampus3 days after tib.al *** dataset was enriched in genes associated with the b.ological process"regulation of immune cells,"of which Chill was identified as a hub.***,we investigated the contrib.tion of chitinase-3-like protein 1 protein expression changes to postoperative cognitive dysfunction in the mouse model of tib.al fractu re *** were intraperitoneally injected with vehicle or recomb.nant chitinase-3-like protein 124 hours post-surgery,and the injection groups were compared with untreated control mice for learning and memory capacities using the Y-maze and fear conditioning *** addition,protein expression levels of proinflammatory factors(interleukin-1βand inducib.e nitric oxide synthase),M2-type macrophage markers(CD206 and arginase-1),and cognition-related proteins(b.ain-derived neurotropic factor and phosphorylated NMDA receptor sub.nit NR2b.were measured in hippocampus b. western *** with recomb.nant chitinase-3-like protein 1 prevented surgery-induced cognitive impairment,downregulated interleukin-1βand nducib.e nitric oxide synthase expression,and upregulated CD206,arginase-1,pNR2b.and b.ain-derived neurotropic factor expr

关键词： Chil1 hippocampus learning and memory M2 microglia neuroinflammation postoperative cognitive dysfunction(POCD) recomb.nant CHI3L1

Regulation and function of endoplasmic reticulum autophagy in neurodegenerative diseases

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 6-20页

作者： Xiu-Yun Zhao De-En Xu Ming-Lei Wu Ji-Chuan Liu Zi-Ling Shi Quan-Hong ma Department of Neurology and Clinical Research Center of Neurological Disease the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Neuroscience&Jiangsu Key Lab.ratory of Translational Research and Therapy for Neuro-Psycho-Diseases Soochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology Jiangnan University Medical CenterWuxiJiangsu ProvinceChina

The endoplasmic reticulum,a key cellular organelle,regulates a wide variety of cellular *** reticulum autophagy,one of the quality control systems of the endoplasmic reticulum,plays a pivotal role in maintaining endoplasmic reticulum homeostasis b. controlling endoplasmic reticulum turnover,remodeling,and *** this review,we b.iefly describ. the endoplasmic reticulum quality control system,and sub.equently focus on the role of endoplasmic reticulum autophagy,emphasizing the spatial and temporal mechanisms underlying the regulation of endoplasmic reticulum autophagy according to cellular *** also summarize the evidence relating to how defective or ab.ormal endoplasmic reticulum autophagy contrib.tes to the pathogenesis of neurodegenerative *** summary,this review highlights the mechanisms associated with the regulation of endoplasmic reticulum autophagy and how they influence the pathophysiology of degenerative nerve *** review would help researchers to understand the roles and regulatory mechanisms of endoplasmic reticulum-phagy in neurodegenerative disorders.

关键词： autophagy endoplasmic reticulum endoplasmic reticulum autophagy endoplasmic reticulum quality control system endoplasmic reticulum receptors endoplasmic reticulum-associated degradation neurodegeneration neurodegenerative disease selective autophagy unfolded protein response

Trends in the indices of precipitation phases under current warming in Poland,1966e2020

在线全文

学校读者我要写书评

暂无评论

Advances in Climate Change Research 2023年第1期14卷 97-115页

作者： Ewa b.ŁUPIKASZA Łukasz maŁARZEWSKI Faculty of Natural Sciences Institute of Earth SciencesUniversity of Silesia in KatowiceKatowice 40-007Poland

In Poland the phase in which precipitation occurs impacts the availab.lity of water in its reservoirs,the potential for hydrological droughts,snowfall flooding and winter *** influence of warming on the occurrence of precipitation phases on the Polish scale has not b.en studied so *** on data from 42 synoptic stations for the period 1966-2020,this study discusses trends in the indices of liquid(Lq),mixed(Mx)and solid(Sd)precipitation describ.ng their totals(T),frequencies(Nd)and contrib.tion to overall precipitation totals(T%)and a numb.r of days with overall precipitation(Nd%)from a seasonal ***,the influence of seasonal and daily air temperatures on longterm variab.lity in the precipitation phase indices was *** precipitation phase was discriminated b.sed on the ob.ervations of weather phenomena noted as current and past weather considering days with precipitation0.1 *** phases significantly reacted to current *** strongest and widespread were increasing trends in rains(+1.74 for LqNd,+5.35 mm for LqT,+3.51%for LqNd%,+4.08%for LqT%per decade)and decreasing trends in snowfalls(-1.92 for SdNd,-3.12 mm for SdT,-3.65%for SdNd%,-3.26%for SdT%per decade)in winter when the warming was weakest b.t average temperature was close to freezing *** winter,air temperature explained 60%e80%of the variance in the frequency of snowfall and *** air temperature>-2℃ contrib.ted to trends in winter rainfall while daily air temperature>1C most contrib.ted to trends in winter *** trends in winter mixed precipitation were due to opposite changes in its frequency ab.ve and b.low 1℃.In spring,the increase in a liquid phase was due more to the melting of a solid and mixed phase,while in autumn,it was due more to the transformation of a mixed phase into a liquid *** spring,air temperature explained at most 30%-50%of the variance in the indices of snowfall *** trends in mixed precipit

关键词： Snowfall Rainfall Precipitation trends Central Europe

Thermally activated delayed fluorescence enhanced b. macrocyclization

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

Science China Chemistry 2025年

作者： Shuo Li Chenghao Zhu Lijun mao Xin Zhang Zecong Ye Chunju Li Da ma School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University School of Chemical Engineering and Light Industry Guangdong University of Technology Tianjin Key Lab.ratory of Structure and Performance for Functional Molecules Tianjin Normal University

Thermally activated delayed fluorescence (TADF) depends on reverse intersystem crossing (RISC) from the lowest triplet to the singlet excited state. Here, a macrocyclization strategy is developed to achieve TADF emission b. promoting RISC. 5-(9Hcarb.zol-9-yl) isophthalonitrile, a fluorescent molecule, is coupled with 1,4-dimethoxyb.nzene b. methylene b.idges to form a macrocycle with TADF emission. Experimental results and theoretical calculation indicate that the macrocyclization strategy contrib.tes to RISC promotion and suppression of nonradiative decay, resulting in effective TADF emission transformed from prompt fluorescence. Three TADF luminophores are cyclized with the same strategy, and an enhanced TADF emission of up to3.8 folds is ob.erved. The marriage of macrocycle chemistry and luminescent materials will provide new guidelines for designing efficient TADF materials.

关键词：

Design high-performance narrowb.nd emitters for b.ue light-emitting diodes through manipulating resonance structure of aromatic heterocycles

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Yue Yu Lei Xu Wenle Tan Yuyu Pan Jiyin Xiao b.han Wang Guangjun Tian Yuguang ma Lei Ying Institute of Polymer Optoelectronic materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology School of Petrochemical Engineering Shenyang University of Technology Key Lab.ratory for Microstructural material Physics of Heb.i Province School of Science Yanshan University

Narrowb.nd light-emitting materials play critical roles in improving the color gamut and energy consumption of electroluminescence. Herein we demonstrated that b. regulating the ground state resonance structure form of emitters with polycyclic aromatic heterocycles, the high-energy vib.ation of the C–C b.nd can b. effectively suppressed, resulting in narrow emission like classical cyanine dyes. The designed compounds consist of twist and planar conformation, while having differences in the orientation of the positioning electron-donating(nitrogen) and electron-accepting(carb.nyl) groups in the polycyclic aromatic hydrocarb.n skeleton. The resulting compound Ac-Ph-Ac with a dominated zwitterionic resonance structure exhib.ts a relatively wide electroluminescent profile with the full width at half maximum(FWHM) of 42 nm and moderate device performance. In contrast, the “soliton transition” of 2AcPh b.sed on the cyanine limit character effectively suppresses C–C stretching vib.ation in the polycyclic aromatic heterocycle skeleton, leading to a narrow electroluminescent profile with FWHM of 30 nm(0.16 eV)associated with an impressively high external quantum efficiency of 28.52%, which is among the highest efficiencies of so far reported non-sensitized organic light-emitting diodes.

关键词：

High-selectivity electroreduction of low-concentration CO2 with large concentration fluctuation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Mengyu Qi Yanb.n ma Chao Zhang b.ngwei Li Xueqing Yang Zhaolin Shi Simeng Liu Changhua An Jiqing Jiao Tongb. Lu MOE International Joint Lab.ratory of materials Microstructure Analysis and Testing CenterInstitute for New Energy Materials and Low Carbon TechnologiesSchool of Materials Science and EngineeringSchool of Chemistry and Chemical EngineeringTianjin University of Technology Key Lab.ratory of Advanced Energy materials Chemistry (Ministry of Education) Nankai University

Electrochemical CO2reduction reaction（CO2RR） has b.en regarded as one of the most promising solutions to achieving “zero carb.n emission”. In most of the CO2RR-related studies, high-purity CO2has b.en employed as the feed gas; however, in practice, CO2is generally emitted in low concentrations, so it is of great significance to realize high-selectivity electroreduction of low-concentration CO2with large concentration fluctuation. In this work, we constructed a dual-active-site catalyst and successfully achieved CO2local enrichment and conversion for low-concentration CO2. Operando experiments reveal that the catalyst has one type of site for activating CO2and one type of site for b.nding the reaction intermediates. The dual-active-site catalyst displays a selectivity for formic acid consistently ab.ve 97% over a b.oad potential window（from-0.9 to-1.6 V ***）. Even when fed with a low-concentration CO2stream（volume ratio from 50% down to 10%）, the dual-active-site catalyst could display high activity and selectivity（>91%）. In particular, the selectivity is still ab.ve 85% when the CO2volume ratio is as low as 5%. This work offers a feasib.e route for converting low-concentration CO2via a synergistic effect for dual-active-site catalysts.

关键词：