检索结果-内蒙古大学图书馆

Electrostatic atomization minimum quantity lubrication machining:from mechanism to application

International Journal of Extreme Manufacturing 2022年第4期4卷 58-100页

作者： Wenhao Xu Changhe Li Yanbin Zhang Hafiz Muhammad Ali Shubham Sharma Runze Li Min Yang Teng Gao Mingzheng Liu Xiaoming Wang Zafar Said Xin Liu Zongming Zhou School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520People's Republic of China State Key Laboratory of Ultra-Precision Machining Technology Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHong KongPeople's Republic of China Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering IK Gujral Punjab Technical UniversityPunjab 144603India Department of Biomedical Engineering University of Southern CaliforniaLos AngelesCA 90089-1111United States of America College of Engineering University of SharjahSharjah 27272United Arab Emirates School of Mechanical Engineering Dalian University of TechnologyDalian 116024People's Republic of China Hanergy(Qingdao)Lubrication Technology Co.LTD Qingdao 266520People's Republic of China

Metal cutting fluids(MCFs)under flood conditions do not meet the urgent needs of reducing carbon ***-based minimum quantity lubrication(MQL)is an effective alternative to flood ***,pneumatic atomization MQL has poor atomization properties,which is detrimental to occupational ***,electrostatic atomization MQL requires preliminary exploratory ***,systematic reviews are lacking in terms of capturing the current research status and development direction of this *** study aims to provide a comprehensive review and critical assessment of the existing understanding of electrostatic atomization *** research can be used by scientists to gain insights into the action mechanism,theoretical basis,machining performance,and development direction of this ***,the critical equipment,eco-friendly atomization media(biolubricants),and empowering mechanisms of electrostatic atomization MQL are ***,the advanced lubrication and heat transfer mechanisms of biolubricants are revealed by quantitatively comparing MQL with MCF-based wet ***,the distinctive wetting and infiltration mechanisms of electrostatic atomization MQL,combined with its unique empowering mechanism and atomization method,are compared with those of pneumatic atomization *** experiments have shown that electrostatic atomization MQL can reduce tool wear by 42.4%in metal cutting and improve the machined surface Ra by 47%compared with pneumatic atomization ***,future development directions,including the improvement of the coordination parameters and equipment integration aspects,are proposed.

关键词： cutting grinding minimum quantity lubrication electrostatic atomization biolubricant

来源：评论

学校读者我要写书评

暂无评论

A Soft-Robotic Thumb Orthosis Facilitating Individual Assistance of Thumb Joints

A Soft-Robotic Thumb Orthosis Facilitating Individual Assist...

引用

IEEE International Conference on Soft Robotics (RoboSoft)

作者： Christina Chase-Markopoulou Anoush Sepehri Tania K. Morimoto Michael T. Tolley Department of Mechanical and Aerospace Engineering Department of Surgery Materials Science and Engineering Program University of California San Diego CA USA

ISBN: (数字)9798331520205

ISBN: (纸本)9798331520212

Many wearable soft robotic devices have been developed to assist with spasticity – the increased muscle tone seen in individuals with neurological conditions such as stroke or cerebral palsy. However, these devices typically lack the ability to individually assist multiple degrees of freedom (DOF), which is essential to performing a broad range of daily tasks. To address this need, we developed a soft robotic thumb orthosis to achieve movement in three DOF. We focused on the thumb as it performs the most complex movement. Our orthosis used three unfolding textile pneumatic actuators to assist with the extension of the interphalangeal joint, combined extension of the metacarpal and carpometacarpal joints, and abduction of the carpometacarpal joint. The orthosis was tested on both a 3D-printed biomimetic test bed that emulated spasticity and a healthy individual. The orthosis met the full range of motion targets for each joint, except for the abduction of the carpometacarpal joint with medium spasticity, and surpassed the range of motion threshold required for activities of daily living. The orthosis was able to: (1) assist each DOF independently, (2) move the tip of a biomimetic thumb to a pre-determined target with total error of less than 1.5 cm when actuated with open-loop control, and, (3) provide individual joint assistance to a user with no motor impairment. This research showcases the ability of a soft robotic orthosis to assist movement in simulated spasticity of individual thumb joints and provides an important step towards a platform to study whether independent joint assistance during rehabilitation improves patient outcomes.

关键词： Performance evaluation Pneumatic actuators Biomimetics Thumb Spasticity Soft robotics Muscles Motors Motion control Textiles

来源：评论

学校读者我要写书评

暂无评论

Design of Wireless Based Telemonitoring System with biomedical Sensor

Design of Wireless Based Telemonitoring System with Biomedic...

引用

IEEE International Conference on Emerging & Sustainable Technologies for Power & ICT in a Developing Society (NIGERCON)

作者： A. O. Ogunsanya D. O. Daramola O. O. Ogunbiyi J. W. Sojobi Y. T. Oladijo S. T. Ajayi Department of Biomedical Engineering Bells University of Technology Ota Nigeria Department of Mechanical Engineering Bells University of Technology Ota Nigeria

ISBN: (数字)9798331542559

ISBN: (纸本)9798331542566

Patient surveillance is critical in-order to decrease and/or avoid the spread of the chronic conditions. Although effective, the traditional healthcare systems of patient monitoring are limited, making it difficult for ambulatory patient seek medical care and have their physiological parameters evaluated. Advent of wireless technology and advancements in on-body sensor design have enabled a shift in the traditional health-care system. Thereby, allowing smart healthcare systems to take its place. This paper aims to describe the design and development of wireless based telemonitoring system with biomedical sensors for vulnerable individuals. Non-invasive biomedical sensors, signal condition system, Internet of Things (IoT), radio frequency module (RF) was used to implement the design. The sensors were used to collect physiological parameters before transferring over the hybrid transmission medium. Thing-Speak and graphic user interface (GUI) were used to display the results. The system design was successfully deployed, with efficient transmission of patient data with an average accuracy of 99.06%. The hybrid wireless monitoring system can give continuous physiological data as well as more detailed information about an individual's overall health. Hybrid wireless physiological parameter monitoring system has the potential of enhancing the quality of life of disease management individuals and lower healthcare expenditures.

关键词： Wireless communication Wireless sensor networks Surveillance Medical services Internet of Things Biosensors Reliability biomedical monitoring System analysis and design Graphical user interfaces

来源：评论

学校读者我要写书评

暂无评论

Differentiating structure of in situ and ex situ formation of laser-induced graphene hybrids

引用

Rare Metals 2022年第9期41卷 3035-3044页

作者： Li-Bei Huang Wei-Hua Guo Le Cheng Jian-Jun Su Yun Song Fei-Jun Hu Ying Lo Law Zheng Yan Jian Lin Ru-Quan Ye State Key Laboratory of Marine Pollution Department of ChemistryCity University of Hong KongHong Kong999077China Department of Mechanical and Aerospace Engineering University of MissouriColumbiaMO65211USA Department of Biomedical Biological&Chemical EngineeringUniversity of MissouriColumbiaMO65211USA Department of Electrical Engineering and Computer Science University of MissouriColumbiaMO65211USA City University of Hong Kong Shenzhen Research Institute Shenzhen518057China

Laser-induced graphene(LIG)has been exploited in various fields,such as batteries,water treatment,and flexible actuators and sensors,with the advantages of ease in patternable fabrication and graphene/metal hybrid *** in situ method which includes a single lase step and the ex situ method which uses two lase steps are both widely implemented to synthesize graphene/metal ***,the differences in the structures and properties of the resulting hybrids are not fully ***,we investigate the advantages of ex situ and in situ methods for preparing LIG hybrids using NiFe/LIG as an *** morphology,elemental composition,resistance to strong acid,and application in electrocatalysis and dye adsorption of ex situ and in situ NiFe/LIG hybrids were systematically studied and ***-dispersive X-ray spectrometry(EDS)and vibrating sample magnetometry(VSM)results confirmed the structural differences between the NiFe/LIG *** nanoparticles are mostly wrapped by carbon layers in the in situ NiFe/LIG hybrid,while the ex situ NiFe/LIG hybrid largely exposes the metal *** structural differences are significant for tailoring performance in applications,such as wastewater treatment and *** work provides insights into the synthesis and properties of LIGs and has important implications for future applications.

关键词： Ex situ In situ Laser-induced graphene Metal-containing hybrids Oxygen evolution reaction Dye adsorption

来源：评论

学校读者我要写书评

暂无评论

Automated classification of big X-ray diffraction data using deep learning models

引用

npj Computational Materials 2023年第1期9卷 169-180页

作者： Jerardo E.Salgado Samuel Lerman Zhaotong Du Chenliang Xu Niaz Abdolrahim Materials Science program University of RochesterRochesterNew York 14627USA Department of Computer Science University of RochesterRochesterNew York 14627USA Department of Mechanical Engineering University of RochesterRochesterNew York 14627USA Laboratory for Laser Energetics University of RochesterRochesterNew York 14627USA

In current in situ X-ray diffraction(XRD)techniques,data generation surpasses human analytical capabilities,potentially leading to the loss of *** techniques require human intervention,and lack the performance and adaptability required for material *** the critical need for high-throughput automated XRD pattern analysis,we present a generalized deep learning model to classify a diverse set of materials’crystal systems and space *** our approach,we generate training data with a holistic representation of patterns that emerge from varying experimental conditions and crystal *** also employ an expedited learning technique to refine our model’s expertise to experimental *** addition,we optimize model architecture to elicit classification based on Bragg’s Law and use evaluation data to interpret our model’s *** evaluate our models using experimental data,materials unseen in training,and altered cubic crystals,where we observe state-of-the-art performance and even greater advances in space group classification.

关键词： Automate classify cubic

来源：评论

学校读者我要写书评

暂无评论

Smart Driver Monitoring Robotic System to Enhance Road Safety : A Comprehensive Review

arXiv

引用

arXiv 2024年

作者： Riya, Farhin Farhad Hoque, Shahinul Zhao, Xiaopeng Sun, Jinyuan Stella Department of Electrical Engineering and Computer Science University of Tennessee United States Department of Mechanical Aerospace and Biomedical Engineering United States

The future of transportation is being shaped by technology, and one revolutionary step in improving road safety is the incorporation of robotic systems into driver monitoring infrastructure. This literature review explores the current landscape of driver monitoring systems, ranging from traditional physiological parameter monitoring to advanced technologies such as facial recognition to steering analysis. Exploring the challenges faced by existing systems, the review then investigates the integration of robots as intelligent entities within this framework. These robotic systems, equipped with artificial intelligence and sophisticated sensors, not only monitor but actively engage with the driver, addressing cognitive and emotional states in real-time. The synthesis of existing research reveals a dynamic interplay between human and machine, offering promising avenues for innovation in adaptive, personalized, and ethically responsible human-robot interactions for driver monitoring. This review establishes a groundwork for comprehending the intricacies and potential avenues within this dynamic field. It encourages further investigation and advancement at the intersection of human-robot interaction and automotive safety, introducing a novel direction. This involves various sections detailing technological enhancements that can be integrated to propose an innovative and improved driver monitoring system. Copyright © 2024, The Authors. All rights reserved.

关键词： Human robot interaction

来源：评论

学校读者我要写书评

暂无评论

Microneedle array facilitates hepatic sinusoid construction in a large-scale liver-acinus-chip microsystem

引用

Microsystems & Nanoengineering 2023年第3期9卷 333-346页

作者： Shibo Li Chengpan Li Muhammad Imran Khan Jing Liu Zhengdi Shi Dayong Gao Bensheng Qiu Weiping Ding Department of Electronic Engineering and Information Science University of Science and Technology of ChinaHefeiAnhui 230027China Department of Oncology the First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230001China Center for Biomedical Imaging University of Science and Technology of ChinaHefeiAnhui 230027China School of Biology Food and EnvironmentHefei UniversityHefeiAnhui 230601China Department of Mechanical Engineering University of WashingtonSeattleWA 98195USA

Hepatic sinusoids play a key role in maintaining high activities of liver cells in the hepatic ***,the construction of hepatic sinusoids has always been a challenge for liver chips,especially for large-scale liver ***,we report an approach for the construction of hepatic *** this approach,hepatic sinusoids are formed by demolding a self-developed microneedle array from a photocurable cell-loaded matrix in a large-scale liver-acinus-chip microsystem with a designed dual blood *** sinusoids formed by demolded microneedles and spontaneously self-organized secondary sinusoids can be clearly *** from significantly enhanced interstitial flows by formed hepatic sinusoids,cell viability is witnessed to be considerably high,liver microstructure formation occurs,and hepatocyte metabolism is *** addition,this study preliminarily demonstrates the effects of the resulting oxygen and glucose gradients on hepatocyte functions and the application of the chip in drug *** work paves the way for the biofabrication of fully functionalized large-scale liver bioreactors.

关键词： needle hepatic metabolism

来源：评论

学校读者我要写书评

暂无评论

Towards understanding metallurgical defect formation of selective laser melted wrought aluminum alloys

Advanced Powder Materials

引用

Advanced Powder Materials 2022年第4期1卷 8-16页

作者： Jinliang Zhang Weihao Yuan Bo Song Shuo Yin Xiaobo Wang Qingsong Wei Yusheng Shi State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Department of Mechanical Manufacturing and Biomedical EngineeringParsons BuildingDublin2Ireland

The formation of balling,porosity and cracking defects is a vital obstacle in selective laser melting of wrought Al ***,it lacks systematic research on the origins of these ***,the formation mechanisms and avoidance methods of metallurgical defects in slective laser melting(SLM)-processed Al-Cu-Mg alloy were investigated by numerical simulation and microstructure *** optimization by altering laser energy density can effectively suppress balling and porosity,thus enhancing relative *** results from the stress concentration and columnar grains arise due to the rapid cooling process during *** methods that promote the columnar-to-equiaxed grain transition,such as microalloying by Sc/Zr/Ti elements,co-incorporation of ceramic particles and introducing ultrasound,can effectively enhance the cracking resistance and mechanical properties of wrought Al alloys.

关键词： Selective lasermelting Al-Cu-Mg alloy Balling Porosity Cracking

来源：评论

学校读者我要写书评

暂无评论

An On-Chip Viscoelasticity Sensor for Biological Fluids

引用

Cyborg and Bionic Systems 2023年第1期4卷 540-548页

作者： Qianbin Zhao Sheng Yan Boran Zhang Kai Fan Jun Zhang Weihua Li Hebei Key Laboratory of Biomaterials and Smart Theranostics School of Health Sciences and Biomedical EngineeringHebei University of TechnologyTianjin 300131China Institute for Advanced Study Shenzhen UniversityShenzhen 518060China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China Queensland Micro and Nanotechnology Centre Griffith UniversityBrisbaneQLD 4111Australia School of Mechanical MaterialsMechatronic and Biomedical EngineeringUniversity of WollongongWollongongNSW 2522Australia

There are so many non-Newtonian fluids in our daily life,such as milk,blood,cytoplasm,and mucus,most of which are viscoelastic heterogeneous liquid containing cells,inorganic ion,metabolites,and *** microfluidic microparticle-manipulating applications,the target particles are practically distributed within the biological fluids like blood and *** viscoelasticity of biological fluid is constantly ignored for simplicity especially when the fluid is substantially diluted and contains rather complex ***,even the fluid’s ultraweak viscoelasticity actually affects the microparticle migration and may bring a completely different behavior compared with the Newtonian *** a result,a robust and easy operated on-chip viscoelasticity sensor is potential and desired in many research and industrial fields,including assay sample preparation,clinical diagnostics,and on-chip *** this work,we employed stable non-Newtonian fluid-polyethylene oxide(PEO)solutions with various concentrations to investigate and calibrate effects of the weak fluidic viscoelasticity on microparticle behaviors in a double-layered microfluidic *** analogy-based database of fluidic patterns for viscoelasticity sensing and relaxation time measurement was ***,we tested different biological fluids including blood plasma and fetal bovine serum and proved that they exhibited similar viscoelasticity effects to the PEO solutions with the corresponding concentration,which reached a good agreement with available results by *** detection limitation of relaxation time can reach 1 *** promised a robust and integrated on-chip microfluidic viscoelasticity sensor for different biological fluids without complicated calculations.

关键词： Newtonian relaxation analogy

来源：评论

学校读者我要写书评

暂无评论

Load Response of SOFC Triple Combined Cycle with Green Hydrogen Generation and Utilization Installed in Core Substations

Load Response of SOFC Triple Combined Cycle with Green Hydro...

引用

Power and Renewable Energy engineering (PREE), International Conference on

作者： Shafirah Khairina Budiawan Shin'ya Obara Department of Engineering Mechanical and Electrical Engineering Program Kitami Institute of Engineering Kitami Japan

A SOFC triple combined cycle power generation, consisting of a solid oxide fuel cell and gas turbine combined cycle is revealed to give efficiency improvement while reducing the amount of emissions in power generation. It comes from the fact that the exhaust heat generated from a cycle is further utilized for power generation in the next cycle. Studies concerning its designs and optimizations have been investigated, including the characteristics of the system. This study investigates the load following the response of a hydrogen-fueled triple combined cycle, where both the fuel cell and gas steam turbine run on hydrogen fuel. The hydrogen fuel consumed will be provided by a hydrogen generation system of a proton exchange membrane electrolyzer (PEMEC). The generated hydrogen is then stored in a hydrogen tank until further use. The Hydrogen generation triple combined cycle system is interconnected with a substation of renewable energy. Surplus electricity from renewables will be directed to power the electrolyzer.

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：