检索结果-内蒙古大学图书馆

Multi-parameter control of photodetection in van der Waals magnet CrSBr

Light(science & Applications) 2025年第3期14卷 713-720页

作者： Shiqi Yango Zhigang Song Yuchen Gao Leyan Huang Xinyue Huang Pingfan Gu Wenjng Liu Zuxin Chen Yu Ye State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China John A.Paulson School of Engineering and Applied Sciences Harvard UniversityCambridgeMA02138USA Academy for Advanced Interdisciplinary Studies Peking UniversityBeijing 100871China School of Semiconductor Science and Technology South China Normal UniversityFoshan 528225China Collaborative Innovation Centre of Quantum Matter Bejing 100871China Yangtze Delta Institute of Optoelectronics Peking UniversityNantong 226010 JiangsuChina Liaoning Academy of Materials Shenyang110167China

Photodetectors equipped with multi-parameter control hold the potential to deliver exceptional performance in a wide range of scenarios,paving the way for developing novel spin-opto-electronic ***,the integration of such capabilities within a single device is challenging due to the necessity of harmonizing multiple materials with varying degrees of *** this study,we introduce the van der Waals magnet CrSBr,featuring inherent anisotropy and distinctive spin-electronic coupling,to this *** linear dichroic ratio of the photocurrent in CrSBr tunneling device can reach~60 at 1.65 K,and the photoresponse experiences a significant boost with increasing magnetic ***,the unique spin-charge coupling engenders a photon energy-dependent photocurrent that is modulated by an external field and is validated by first-principle *** findings elucidate the effective multi-parameter control of photodetection based on vdWs magnet CrsBr,highlighting its potential applications in cutting-edge optoelectronic devices and as a highly sensitive probe medium.

关键词： van der waals magnet crsbr linear dichroic ratio multi parameter control photon energy dependent photocurrent van der waals magnet crsbrfeaturing photoresponse harmonizing multiple materials photodetection

来源：评论

学校读者我要写书评

暂无评论

Part 2: The Effect of Functionalizing Silica Gel with Ag and ZnO Nanoparticles on Antimicrobial Properties and Their Application in Meat Packaging

SSRN

引用

SSRN 2024年

作者： Guido, Zaira Nicole Silva Braum, Marcus Vinicius Possolli, Natália Morelli De Bonna, Rafaella Ponsoni, Lara Vasconsellos de Almeida, Marina Kauling Angioletto, Elídio Zimmermann, Matheus Vinicius Gregory Universidade do Extremo Sul Catarinense - UNESC Graduate Program in Materials Science and Engineering Santa Catarina Criciúma Brazil Senai Institute of Innovation in Advanced Materials and Nanocomposites São Bernardo do Campo São Paulo Brazil Prometeon Tyre Group - Santo André São Paulo Brazil Universidade do Extremo Sul Catarinense Brazil

In this study, silica gel was functionalized with Ag and ZnO nanoparticles for use as absorbent pads in active packaging for meat products. The silica gel, derived from renewable sources (rice husk), was functionalized by decorating the silica matrix with Ag and ZnO nanoparticles. For silica functionalization, the chemical reduction method was used for silver, and the precipitation method was used for ZnO. The samples were characterized for chemical composition to evaluate the effectiveness of functionalization and its leaching in an aqueous medium. Silica and functionalized silica samples were also evaluated for their effectiveness in microbiological control through agar diffusion tests, determination of Minimum Inhibitory Concentration, and effectiveness in application in a prototype packaging, where beef was used as the analysis mechanism. The main results indicate that silver was more effective in controlling Pseudomonas aeruginosa, a pathogen often associated with the deterioration of meat products. Silica functionalized with ZnO did not show antimicrobial effectiveness against this type of microorganism. © 2024, The Authors. All rights reserved.

关键词： Silica gel

来源：评论

学校读者我要写书评

暂无评论

Application of deep neural network learning in composites design

引用

European Journal of materials 2022年第1期2卷 118-171页

作者： Wang, Yinli Soutis, Constantinos Ando, Daisuke Sutou, Yuji Narita, Fumio Department of Materials Science Graduate School of Engineering Tohoku University Sendai 980-8579 Japan Division for Interdisciplinary Advanced Research and Education Tohoku University Sendai 980-8579 Japan Aerospace Research Institute The University of Manchester Oxford Road Manchester M13 9PL United Kingdom WPI Advanced Institute for Materials Research Tohoku University Sendai Japan Department of Frontier Sciences for Advanced Environment Graduate School of Environmental Studies Tohoku University Sendai 980-8579 Japan

A timely review is presented on artificial intelligence (AI) and, more specifically, deep learning, which is a subfield of machine learning (ML), applied to the design and behaviour of modern composite materials systems. The use of composites is increasing due to their high specific strength and stiffness, which make them comparable to metals, and their tunable properties that can be altered to produce lightweight materials with efficient structural configurations. Recent studies are examined and discussed, wherein computational tools have been developed that mimic human brain activity to answer questions and solve challenging problems toward characterizing materials behaviour and improving the performance of materials with less effort and cost. The attractiveness of AI comes from its self-learning capability, the faster computer processing time of large datasets, and the potential to yield highly accurate results. However, as a data-driven method, the quantity and quality of data largely affect the accuracy of ML in addition to the need for well-designed AI algorithms and virtual reality models, hence the need to continue the research efforts in this area. © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

关键词： damage analysis industrial internet of things Industry 4.0 mapping material databases Material design material property prediction multiscale modelling neural networks topology optimization

来源：评论

学校读者我要写书评

暂无评论

Dynamic WNT signaling controls differentiation of hematopoietic progenitor cells from human pluripotent stem cells

引用

science China Life sciences 2025年

作者： Mo Li Keiichiro Suzuki Mengge Wang Christopher Benner Manching Ku Li Ma Ladan Kobari Na Young Kim Nuria Montserrat Chan-Jung Chang Guanghui Liu Jing Qu Jinna Xu Yingzi Zhang Emi Aizawa Jun Wu Luc Douay Concepcion Rodriguez Esteban Juan Carlos Izpisua Belmonte Key Laboratory of Organ Regeneration and Reconstruction State Key Laboratory of Membrane Biology Institute of Zoology Chinese Academy of Sciences Institute for Stem Cell and Regeneration Chinese Academy of Sciences EFS Ile de France Unité d’Ingénierie et de Thérapie Cellulaire AP-HP H?pital Saint Antoine/Armand Trousseau Service d’Hématologie et immunologie biologique Altos Labs Bioscience Program Biological and Environmental Science and Engineering Division King Abdullah University of Science and Technology (KAUST) KAUST Center of Excellence for Smart Health (KCSH) Gene Expression Laboratory Salk Institute for Biological Studies Institute for Advanced Co-Creation Studies Osaka University Integrative Genomics and Bioinformatics Core Salk Institute for Biological Studies Next Generation Sequencing Core Salk Institute for Biological Studies UPMC Univ Paris 06 UMRS938 CDR Saint-Antoine Prolifération et Différentiation des Cellules Souches INSERM UMRS938 Prolifération et Différentiation des Cellules Souches Center for Regenerative Medicine in Barcelona

Human pluripotent stem cells (hPSCs) can in theory give rise to any hematopoietic lineages,thereby offering opportunities for disease modeling,drug screening and cell ***,gaps in our knowledge of the signaling requirements for the specification of human hematopoietic stem/progenitor cells (HSPCs),which lie at the apex of all hematopoietic lineages,greatly limit the potential of hPSC in hematological research and *** analysis reveals aberrant regulation of WNT signaling during maturation of h PSC-derived hematopoietic progenitor cells (hPSC-HPCs),which results in higher mitochondria activity,misregulation of HOX genes,loss of selfrenewal and precocious *** defects are partly due to the activation of the WNT target gene ***-stage WNT inhibition improves the yield,self-renewal,multilineage differentiation,and transcriptional and metabolic profiles of *** mapping of transcription factor (TF) accessible chromatin reveals a significant overrepresentation of myeloid TF binding motifs in hPSC-HPCs,which could underlie their myeloid-biased lineage *** our findings uncover a previously unappreciated dynamic requirement of the WNT signaling pathway during the specification of human *** the WNT pathway with small molecules normalizes the molecular differences between hPSC-HPCs and endogenous hematopoietic stem cells (HSCs),thereby representing a promising approach to improve the differentiation and function of hPSC-HPCs.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Unconventional Spin Hall Magnetoresistance in Noncollinear Antiferromagnet/Heavy Metal Stacks

引用

Physical Review Letters 2025年第9期134卷 096701-096701页

作者： Tomohiro Uchimura Jiahao Han Ping Tang Ju-Young Yoon Yutaro Takeuchi Yuta Yamane Shun Kanai Gerrit E. W. Bauer Hideo Ohno Laboratory for Nanoelectronics and Spintronics Research Institute of Electrical Communication Tohoku University Sendai Japan Graduate School of Engineering Tohoku University Sendai Japan Advanced Institute for Materials Research Tohoku University Sendai Japan International Center for Young Scientists National Institute for Materials Science Tsukuba Japan Frontier Research Institute for Interdisciplinary Sciences Tohoku University Sendai Japan PRESTO Japan Science and Technology Agency Kawaguchi Japan Division for the Establishment of Frontier Sciences of Organization for Advanced Studies at Tohoku University Tohoku University Sendai Japan Center for Science and Innovation in Spintronics Tohoku University Sendai Japan National Institutes for Quantum Science and Technology Takasaki Japan Institute for Materials Research Tohoku University Sendai Japan Kavli Institute for Theoretical Sciences University of the Chinese Academy of Sciences Beijing China Center for Innovative Integrated Electronic Systems Tohoku University Sendai Japan

We study the spin Hall magnetoresistance (SMR) in noncollinear antiferromagnet Mn3Sn/heavy metal stacks. The measured SMR exhibits peculiar magnetic field angle and magnitude dependence that sharply deviates from the conventional SMR theory based on the dampinglike spin-transfer torque. An alternative model based on a coherent fieldlike torque reproduces the observations well. Our work reveals a previously unrecognized mechanism of interfacial exchange that indicates a precession of the conduction-electron spins in the collective local exchange fields of the noncollinear antiferromagnetic order. The unraveled physics is essential to understanding and controlling spin transport in unconventional magnetic materials.

关键词： Magnetoresistance

来源：评论

学校读者我要写书评

暂无评论

Microwave Synthesis of Nanostructured High Entropy Spinel

SSRN

引用

SSRN 2022年

作者： Gunnewiek, Rodolfo Foster Klein Cardoso, André L.F. Perdomo, Claudia P.F. Foschiani, Beatriz G. Xaraba, Julia A. Zabotto, Fabio L. Federal University of Sao Carlos Graduate Program in Materials Science and Engineering SP Sao Carlos Brazil Federal University of Sao Carlos Department of Materials Engineering SP São Carlos Brazil Federal University of Sao Carlos Department of Physics SP São Carlos Brazil

A single-phase cubic high entropy spinel (HES) (CoCrFeMnNi)3O4 was microwave synthesized by a polymer-based method. The complete microwave-synthesis took no longer than 2 hours. The HEŚs were characterized by X-ray diffractometry (XRD), transmission electron microscopy (TEM) and diffuse reflectance spectroscopy (DRS). After calcination of 800 and 900 °C, the powders showed nanostructured cubic single-phases. The band gap energy (Eg) of the microwave irradiated HES was 2.2 eV compared to the 2.45 eV of the conventionally calcined. These Eg values indicate application possibilities in the field of catalytic reforming of carbon dioxide as a promising catalyst with tunable properties. © 2022, The Authors. All rights reserved.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

Cross-Slip of Extended Dislocations and Secondary Deformation Twinning in a High-Mn Twip Steel

SSRN

引用

SSRN 2024年

作者： Shen, Shucheng Xie, Pan Wu, Cuilan Luo, Jing Chen, Jianghua Ye, Haifeng Pico Electron Microscopy Center Innovation Institute for Ocean Materials Characterization Technology Center for Advanced Studies in Precision Instruments Hainan University Hainan Province Haikou570228 China College of Materials Science & Engineering Hunan University Hunan Changsha410082 China Key Laboratory of Pico Electron Microscopy of Hainan Province Hainan University Hainan Province Haikou570228 China

There has been a long-standing controversy on the extended dislocation cross-slipping behavior and the mechanism of secondary deformation twinning. Here, the partial dislocation motion and austenite twinning of a high-Mn steel at the early stage of deformation were investigated using in-situ tensile transmission electron microscope (TEM) technique. Results show that both plane slip and cross-slip of extended dislocations can occur in larger numbers at the early stage of deformation. Extended dislocation nodes can form by reaction between adjacent extended dislocation on the same slip plane. In-situ tensile TEM experiments confirm two cross-slip models of partial dislocation: (1) Friedel-Escaig model, cross-slip based on constriction of extend dislocations and re-dissociate;(2) Fleischer model, cross-slip involving Lomer-Cottrell dislocation. Based on experimental results and energy calculations, it can be confirmed that the formation mechanism of austenite primary deformation twins induced by partial dislocations is different from that of secondary deformation twins. Grain boundary emits partial dislocations into the grain to form stable stacking fault which induces austenite primary deformation twin. The formation of secondary deformation twin is related with cross-slip of extended dislocation. Only the cross-slip of an extended dislocation containing a 90° partial dislocation can induce the formation of secondary deformation twin by introducing the Frank partial dislocation. © 2024, The Authors. All rights reserved.

关键词： Austenite

来源：评论

学校读者我要写书评

暂无评论

Giant Magnon-Polaron Anomalies in Spin Seebeck Effect in Double Umbrella-Structured Tb3Fe5O12 Films

引用

Physical Review Letters 2024年第5期132卷 056702-056702页

作者： Yufei Li Yihang Duan Mingzhi Wang Lili Lang Yu Zhang Meng Yang Junxue Li Weijia Fan Ka Shen Zhong Shi Shi-Ming Zhou Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering Tongji University Shanghai 200092 China Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Beijing 100875 China Key Laboratory of Multi-scale Spin Physics Ministry of Education Beijing Normal University Beijing 100875 China National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences 865 Changning Road Shanghai 200050 China Department of Physics Southern University of Science and Technology Shenzhen Guangdong 518055 China

We report a giant hysteretic spin Seebeck effect (SSE) anomaly with a sign reversal at magnetic fields much stronger than the coercive field in a (001)-oriented Tb3Fe5O12 film. The high-field SSE enhancement reaches 4200% at approximately 105 K over its weak-field value and presents a nonmonotonic dependence on temperature. The unexpected high-field hysteresis of SSE is found to be associated with a magnetic transition of double-umbrella spin texture in TbIG. Nearly parallel dispersion curves of magnons and acoustic phonons around this neoteric transition are supported by theoretical calculations, leading to a high density of field-tuned magnon polarons and consequently an extraordinarily large SSE. Our study provides insight into the evolution of magnon dispersions of double-umbrella TbIG and could potentially boost the efficiency of magnon-polarons SSE devices.

关键词： Magnons Spin Seebeck effect Spin caloritronics Rare-earth magnetic materials

来源：评论

学校读者我要写书评

暂无评论

Snake-Scale Stimulated Robust Biomimetic Composite Triboelectric Layer for Energy Harvesting and Smart Health Monitoring

SSRN

引用

SSRN 2023年

作者： Lin, Zong-Hong Huang, Ming-Zheng Parashar, Parag Chen, An-Rong Shi, Shih-Chen Tseng, Yao-Hsuan Lim, Kee Chin Yeh, Hsuan-Yu Pal, Arnab Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Biomedical Engineering National Taiwan University Taipei10617 Taiwan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Mechanical Engineering National Cheng Kung University Tainan70101 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 Taiwan

Extreme frictional wear of triboelectric layers severely hinders long-term sustainability of triboelectric nanogenerators (TENGs) for efficient ambient energy harvesting. The state-of-the-art solutions necessitate sophisticated structural designs and complex packaging constraints, impeding the feasibility of TENGs for practical applications. Herein, inspired by the structures and compositions of snake scales, a biomimetic composite (BC) film is fabricated as a wear-resistant triboelectric contact layer. The successful formation of disulfide bond-facilitated cross-linkage of cysteine proteins in the keratin-based BC film promotes excellent mechanical resilience and durability, thereby solving the material abrasion challenges associated with solid-solid triboelectric layers. The BC film, with toothed microstructure, exhibits improved charge transfer, low friction, and consistent long-term stable outputs compared to commercial films. Furthermore, a self-powered BC film-based TENG is integrated into a bicycle for biomechanical energy harvesting, lightening warning signals for safer night ride with stable 300 V electrical output for at least 6 hours. Moreover, a smart health monitoring system is further proposed by embedding TENG-based sensors into the bicycle saddle, accurately capturing the rider’s pelvic-saddle interactions on varying terrain slopes. By leveraging the unique biomechanical information, machine learning-assisted user identification and terrain slope data classifications are achieved with high accuracies, laying a foundation for futuristic smart healthcare applications. This work provides a strategy to reduce material abrasion by exploiting the unique characteristics of a biomimetic material, facilitating a basis for efficient environmental energy harvesting and smart sensing. © 2023, The Authors. All rights reserved.

关键词： Nanogenerators

来源：评论

学校读者我要写书评

暂无评论

Design and analysis of mild steel mini truck body for increasing the payload capacity

引用

materials Today: Proceedings 2021年 37卷 1274-1280页

作者： S. Satish S. John Alexis Arun Bhuvendran Mohanraj Shanmugam S. Baskar V.S. Shaisundaram Department of Automobile Engineering Kumaraguru College of Technology Coimbatore India Department of Materials Engineering and Nanotechnology Politecnico di Milano Milano Italy Department of Automobile Engineering Vels Institute of Science Technology and Advanced Studies Chennai India

In India most of the small scale industries and traders would modify their vehicle body in order to maximize the load carrying capacity of the truck for economical reason. These alteration are done without proper design and analysis. In this work the vehicle body is designed to increase the pay load capacity of mini truck from 1.5 tons to 2 tons. The proposed model is analyzed for distributed load, line load and impact load due to cylindrical object. The impact analysis is done by assuming a set of cylinders weighing 1 tons dropped from 1 cm height. The vehicle body is modelled in CATIA and analyzed using ANSYS 16.2 FEA commercial software. The material chosen for analysis is mild steel. The strength of the body is assessed using deformation, stress and factor of safety value obtained from FEA analysis. The stress concentration is high at intersection point of body and chassis and also at top corner of the side channels and it is reduced by design modification. The final results shows that the proposed design is safe for the assumed.

关键词：

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：