检索结果-内蒙古大学图书馆

Interfacial Mo-S bond modulated S-scheme Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)heterojunction for boosted photocatalytic removal of emerging organic contaminants

引用

Chinese Journal of Catalysis 2025年第1期68卷 259-271页

作者： Shijie Li Changjun You Fang Yang Guijie Liang Chunqiang Zhuang Xin Li Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province National Engineering Research Center for Marine AquacultureCollege of Marine Science and TechnologyZhejiang Ocean UniversityZhoushan 316022ZhejiangChina School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China Hubei Key Laboratory Low Dimens Optoelect Mat&Devices Hubei University of Arts and ScienceXiangyang 441053HubeiChina Institute of Microstructure and Property of Advanced Materials Beijing University of TechnologyBeijing 100124China Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642GuangdongChina

Inefficient photo-carrier separation and sluggish photoreaction dynamics appreciably undermine the photocatalytic decontamination efficacy of ***,an S-scheme Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)heterojunction with interfacial Mo-S chemical bond is designed as an efficient *** this integrated photosystem,Bi2MoO6 and Mn_(0.5)Cd_(0.5)S function as oxidation and reduction centers of Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)microspheres,***,the unique charge transfer mechanism in the chemically bonded S-scheme heterojunction with Mo-S bond as atom-scale charge transport highway effectively inhibits the photocorrosion of Mn_(0.5)Cd_(0.5)S and the recombination of photo-generated electron-hole pairs,endowing Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)photocatalyst with excellent photocatalytic decontamination performance and ***,integration of Mn_(0.5)Cd_(0.5)S nanocrystals into Bi2MoO6 improves hydrophilicity,conducive to the ***,compared with Mn_(0.5)Cd_(0.5)S and Bi2MoO6,the Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)unveils much augmented photoactivity in tetracycline eradication,among which Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6)-2 possesses the highest activity with the rate constant up to 0.0323 min-1,prominently outperforming other *** research offers a chemical bonding engineering combining with S-scheme heterojunction strategy for constructing extraordinary photocatalysts for environmental purification.

关键词： Mn_(0.5)Cd_(0.5)S/Bi_(2)MoO_(6) Interfacialchemicalbond S-scheme heterojunction Emerging organic contaminants Internalelectricfield Photocatalysis

来源：评论

学校读者我要写书评

暂无评论

Biopolymers and Biomimetic materials in Medical and Electronic-Related Applications for Environment-Health-Development Nexus:Systematic Review

引用

Journal of Bionic engineering 2022年第6期19卷 1562-1577页

作者： Faris Mohammed AL-Oqla Mohammed Hassouna Alaaeddin Muhammad Enamul Hoque Vijay Kumar Thakur Department of Mechanical Engineering Faculty of EngineeringThe Hashemite UniversityP.O Box 330127Zarqa13133Jordan University College Fairview 2AJalan TP2Sime UEP Industrial Park Subang Jaya47600Subang JayaSelangorMalaysia Department of Biomedical Engineering Military Institute of Science and Technology(MIST)Mirpur CantonmentDhaka1216Bangladesh Biorefining and Advanced Materials Research Center Scotland’s Rural College(SRUC)Kings BuildingsEdinburghEH93JGUK School of Engineering University of Petroleum&Energy Studies(UPES)Dehradun248007UttarakhandIndia

Biocomposites as bio-inspired materials are produced from renewable resources that are organic and ecofriendly alternative *** improve the lifestyle of human beings as well as enhancing the environmental indices,functional bio-materials are now implemented in various promising *** work has systematically discussed and highlighted the implementations and trends of functional bionic materials in high tech industries,which are necessary for developing modern *** medical,electronic,food and pharmaceutical applications have been ***-inspired materials are used to develop more sustainable possibilities to increase environmental conservation while maintaining customer *** were found employed in several sectors for various functional bio-products including organic thin-film transistors,organic phototransistor,emitting diodes,photodiodes,photovoltaic solar cells,hybrid dental resins,sustainable pharmaceuticals,and food *** are used to create sustainable bio-products for energy storage and harvesting,bone regeneration,nerve damage repair,drug applications and various other industrial subcategories.

关键词： Biopolymers Bioinspired Biomimetic materials Tissue engineering Nerve repair Organic transistors

来源：评论

学校读者我要写书评

暂无评论

Research on the Anodic Oxidation Process of 3d Printing Alsi10mg Alloy Surface

SSRN

引用

SSRN 2024年

作者： Wang, Hong-Bo Liu, Zun-Ying Guo, Hao-Zhe Zhou, Liang Ma, Da-Yan School of Materials Science and Engineering Chang’an University Shaanxi Xi'An710049 China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Shaanxi Xi'An710049 China

AlSi10Mg is one of the most commonly used materials in 3D printing of aluminum alloys. The addition of alloying element Si can significantly improve the formability and mechanical strength of aluminum alloys. However, due to the higher electrode potential of Si compared with Al, the corrosion resistance of Al matrix is greatly reduced, resulting in serious corrosion failure. Anodic oxidation is an effective method for surface modification of aluminum alloy, but the research on the anodic oxidation behavior of 3D printed AlSi10Mg alloy is rarely reported. To solve this problem, the anodic oxidation behavior of 3D printing AlSi10Mg alloy was systematically studied in this paper, focusing on the mechanism of the effect of oxidation voltage on the film structure characteristics, corrosion resistance and wear resistance. The study proved that the thickness and the density of oxide film layers increased and the surface roughness decreased at low voltage, due to Si found that with the increase of voltage. At the same time, the hardness, corrosion and wear resistance of the film layers also increased with the increase of voltage. © 2024, The Authors. All rights reserved.

关键词： Corrosion resistance

来源：评论

学校读者我要写书评

暂无评论

Design, Modeling, and Simulation of Low-Cost Magnetorheological Fluid-Based Prosthetic Leg 2nd

Design, Modeling, and Simulation of Low-Cost Magnetorheologi...

引用

2nd International Conference on Recent Advances in Manufacturing, RAM 2021

作者： Shastry, Ganapati Toby, Ashish Choi, Seung Bok Kamble, Vikram G. Jagadeesha, T. Department of Mechanical Engineering National Institute of Technology Kerala Calicut671603 India 119 Songdo Moonhwa-Ro Yeonsu-Gu Incheon21985 Korea Republic of Department of Elastomers Leibniz Institute for Polymer Research Dresden01069 Germany Faculty of Mechanical Science and Engineering Institute of Materials Science Technical University Dresden Dresden01069 Germany

ISBN: (纸本)9789811677861

This paper deals with designing and modeling a prosthetic leg with MR damper to control the knee joint for above-knee amputees. A four-bar mechanism has been selected for the knee joint of the prosthetic leg. A twin-tube MR damper was chosen for this work because of its better performance compared with other dampers, mainly due to the mobility of the magnetic core. The MR fluid selected for the purpose was the commercially available MRF 140CG. The entire modeling and simulation (motion analysis) of the prosthetic leg were done using SOLIDWORKS. This was done using the various relations of the natural human gait cycle. To find out the torque required to walk appropriately, dynamic analysis was done on a natural human leg’s free body diagram (FBD). A curve was obtained between torque at knee and hip angle by combining the results of FBD and SOLIDWORKS simulation FBD and SOLIDWORKS simulation results. To understand the behavior of the MR damper, magnetic analysis, and CFD was done using COMSOL and ANSYS, respectively. Various results like variation of the magnetic field with coil wire diameter, variation of pressure, and velocity were obtained. Using these obtained results, a relation between the yield stress and current was obtained. This will further be used to obtain a relation between required torque and current. The control strategy for this leg is the use of a PID controller. The obtained relation between hip angle and current will be stabilized using a PID controller by tuning suitable gains. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Above-knee amputees Magnetorheological fluid MR damper Prosthetic leg

来源：评论

学校读者我要写书评

暂无评论

mechanical Properties of Three Typical Aluminum Alloy Strips Prepared by Twin-Roll Casting

SSRN

引用

SSRN 2023年

作者： Jin, Jiewen Zhang, Z.J. Li, R.H. Li, Y. Gong, B.S. Hou, J.P. Wang, H.W. Zhou, Xiang Hai Purcek, G. Zhang, Zhefeng School of Materials Science and Engineering Northeastern University Shenyang110819 China Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences Shenyang110016 China School of Materials Science and Engineering University of Science and Technology of China Shenyang110016 China School of Mechanical Engineering Liaoning Petrochemical University Fushun113001 China Department of Mechanical Engineering Karadeniz Technical University Trabzon61080 Turkey

Twin-roll casting (TRC) is a near-net shape processing technology that has found widespread application across various series of Al alloys. In this study, the process-structure-property relationships of 2099, 3003, and 6082 Al alloy strips prepared by TRC and traditional rolling (TR) methods were investigated. It shows that the tensile strength and fatigue strength of 2099-TRC are lower than 2099-TR, which is attributed to the reduced solid solubility of copper (Cu) elements resulting from the precipitation of Cu-rich micron phases and the presence of microstructure inhomogeneities. While both 3003-TRC and 3003-TR materials exhibit similar yield and tensile strength, the occurrence of casting micro-void defects in 3003-TRC leads to an accelerated accumulation of fatigue damage, consequently diminishing its fatigue strength. Conversely, 6082-TRC demonstrates an enhanced fatigue strength relative to 6082-TR. This improvement is primarily linked to the higher yield strength and comparable fatigue resistance observed in the former. In light of these findings, the TRC process holds promise for enhancing the fatigue performance of 6xxx Al alloy strips with good elongation. However, for 2xxx and 3xxx alloy strips with comparatively lower elongation, the TRC process enhancements may be necessary to realize similar benefits. The insights gleaned from this study could offer valuable reference and guidance for optimizing both the TRC process itself and the fatigue performance of Al alloy strips. © 2023, The Authors. All rights reserved.

关键词： Tensile strength

来源：评论

学校读者我要写书评

暂无评论

Degradation of solid oxide electrolysis cells: Phenomena,mechanisms, and emerging mitigation strategies——A review

引用

Journal of materials science & Technology 2020年第20期52卷 35-55页

作者： Yi Wang Wenyuan Li Liang Ma Wei Li Xingbo Liu Department of Mechanical&Aerospace Engineering West Virginia UniversityMorgantownWV26506-6106USA School of Materials Science and Engineering Hebei University of EngineeringHandan 056038China

Solid oxide electrolysis cell(SOEC) is a promising electrochemical device with high efficiency for energy storage and ***,the degradation of SOEC is a significant barrier to commercial *** this review paper,the typical degradation phenomena of SOEC are summarized,with great attention into the anodes/oxygen electrodes,including the commonly used and newly developed anode ***,mechanistic investigations on the electrode/electrolyte interfaces are provided to unveil how the intrinsic factor,oxygen partial pressure pO2,and the electrochemical operation conditions,affect the interracial stability of *** last,this paper also presents some emerging mitigation strategies to circumvent long-term degradation,which include novel infiltration method,development of new anode materials and engineering of the microstructure.

关键词： Solid oxide electrolysis cell Degradation Electrode/electrolyte interface Mitigation Strategy

来源：评论

学校读者我要写书评

暂无评论

Advancements in Titanium for Biomedical Applications: A Review of Recent Developments

Advancements in Titanium for Biomedical Applications: A Revi...

引用

Multidisciplinary engineering and Applied science (ICMEAS), International Conference on

作者： Adekunle A. Adeleke Peter P. Ikubanni Mohammed S. Lawal Temitayo Ogedengbe Esther Anosike-Francis Suleiman-Abba Suleiman Favour Chika Daniel Thomas Aghogho Orhadahwe Jamiu Kolawole Odusote Department of Mechanical Engineering Nile University of Nigeria Abuja Nigeria Department of Mechanical Engineering Landmark University Omu-Aran Nigeria Department of Mechanical Engineering Air Force Institute of Technology Kaduna Nigeria Department of Mechanical Engineering African University of Science and Technology Abuja Nigeria Department of Mechanical Engineering Ajayi Crowther University Oyo Nigeria Department of Materials and Metallurgical Engineering University of Ilorin Ilorin Nigeria

ISBN: (数字)9798350358834

ISBN: (纸本)9798350358841

Titanium is an inorganic metallic element that has gained significant importance in various fields due to its exceptional biocompatibility, corrosion resistance, high strength-to-weight ratio, and low modulus of elasticity. These properties have made it a crucial material for improving the quality and durability of life. The chemical and physical characteristics of this element have demonstrated dependability and suitability in the fabrication of mechanical components and constructions that can be implanted within the human body. It has been demonstrated to be a viable option for the fabrication of medical instruments and equipment, particularly those utilised in surgical procedures. This review aims to provide an overview of the latest advancements in the utilization of titanium for biomedical purposes, while also emphasising the distinctive characteristics of titanium that render it an ideal material for medical equipment.

关键词： Fabrication Corrosion Surgery Titanium Three-dimensional printing Biomedical imaging Immune system

来源：评论

学校读者我要写书评

暂无评论

Analysis of a Casimir-driven parametric amplifier with resilience to Casimir pull-in for MEMS single-point magnetic gradiometry

引用

Microsystems & Nanoengineering 2021年第5期7卷 183-193页

作者： Josh Javor Zhancheng Yao Matthias Imboden David K.Campbell David J.Bishop Department of Mechanical Engineering Boston UniversityBostonMA 02215USA Division of Materials Science and Engineering Boston UniversityBostonMA 02215USA K-MEMS St.BlaiseSwitzerland Department of Electrical Engineering Boston UniversityBostonMA 02215USA Department of Physics Boston UniversityBostonMA 02215USA Department of Biomedical Engineering Boston UniversityBostonMA 02215USA

The Casimir force,a quantum mechanical effect,has been observed in several microelectromechanical system(MEMS)*** to its extreme sensitivity to the separation of two objects,the Casimir force has been proposed as an excellent avenue for quantum *** application,however,is challenging due to attractive forces leading to stiction and device failure,called Casimir *** this work,we design and simulate a Casimir-driven metrology platform,where a time-delay-based parametric amplification technique is developed to achieve a steady-state and avoid *** apply the design to the detection of weak,low-frequency,gradient magnetic fields similar to those emanating from ionic currents in the heart and *** parameters are selected from recent experimental platforms developed for Casimir metrology and magnetic gradiometry,both on MEMS *** a MEMS offers many advantages to such an application,the detected signal must typically be at the resonant frequency of the device,with diminished sensitivity in the low frequency regime of biomagnetic *** a Casimir-driven parametric amplifier,we report a 10,000-fold improvement in the best-case resolution of MEMS single-point gradiometers,with a maximum sensitivity of 6 Hz/(pT/cm)at 1 *** development of the proposed design has the potential to revolutionize metrology and may specifically enable the unshielded monitoring of biomagnetic fields in ambient conditions.

关键词： parametric Casimir apply

来源：评论

学校读者我要写书评

暂无评论

Characterization and Luminescence Properties of Camgge2o6: Mn2 + Nir-I Mechanoluminescence Phosphor

SSRN

引用

SSRN 2024年

作者： Zhang, Zeqing Liu, Wei Li, Lin Li, Huan Zhang, Zhijun Cheng, Shuai Rao, Guanghui Zhao, Jingtai Guangxi Key Laboratory of Information Materials School of Materials Science and Engineering Guilin University of Electronic Technology Guilin541004 China School of Mechanical and Electrical Engineering Guilin University of Electronic Technology Guilin541004 China Shanghai University China

Nowadays, deep red to near infrared (NIR) materials with multi-mode luminescence characteristics have become the focus of research, especially in the field of stress sensing and biological imaging. A novel mechonaluminescence material, CaMgGe2O6: Mn2+, is synthesized by high high-temperature solid-state reaction method. The Mn2+ ions are observed to preferentially replace Mg2+ ions in the host lattice, leading to the emission of deep red to near-infrared light in the range of 600-800 nm. The similar photoluminescence (PL) and mechanoluminescence (ML) shapes reveal that these two luminescence modes share a common center. Additionally, UV diffuse reflection analysis indicates that Mn2+ ion incorporation introduces impurity levels, consequently reducing the optical band gap. Further, thermoluminescence (TL) analysis elucidates the presence of three types of defects in the phosphor, with a noted decrease in defect concentration and ML intensity as Mn2+ ion content increases. The ML mechanism of the phosphor is also explained by trap regulation. The findings of this research not only contribute to the understanding of the NIR ML materials but also suggest the potential applications in biological fields. © 2024, The Authors. All rights reserved.

关键词： High temperature applications

来源：评论

学校读者我要写书评

暂无评论

Artificial intelligence enabled microstructure prediction in Al alloy castings

引用

Journal of materials science & Technology 2026年 241卷 21-34页

作者： Qinghuai Hou Xuelong Wu Zhongyao Li Shuwei Feng Decai Kong Shihao Wang Xiaoying Ma Yisheng Miao Haibo Qiao Xiang Li Wenbo Wang Yuling Lang Shiwen Xu Junsheng Wang School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China School of Interdisciplinary Science Beijing Institute of Technology Beijing 100081 China School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 China CITIC Dicastal Co. Ltd. Qinhuangdao 066011 China

Gas porosity defects and secondary dendrite arm spacing (SDAS) are the key microstructure influencing the mechanical properties of Al alloys and their predictions are critical for the safety and reliability of automotive casting components. Existing works mainly utilize experimental methods or numerical simulations to characterize the microstructure, which cost highly and offer limited physical insights. In this study, we generated a comprehensive porosity dataset (472 samples) via 3D cellular automata (CA) simulations and curated an SDAS dataset (310 samples) derived from published literature. Seven artificial intelligence (AI) algorithms have been systematically evaluated, and the eXtreme Gradient Boosting (XGBoost) was identified as the most robust model for microstructure prediction. To validate the AI models, X-ray computed tomography (X-CT) and metallographic experiments were conducted, and the results indicated an accuracy exceeding 90%. Beyond prediction accuracy, we employed SHapley Additive exPlanations (SHAP) analysis to elucidate the impact of alloy elements and processing parameters on the microstructure features, bridging the gap between “black-box” AI and physical insights behind.

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：