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Recent development and application of thin-film thermoelectric cooler
Yuedong Yu, Wei Zhu, Xixia Kong, Yaling Wang, Pengcheng Zhu, Yuan Deng
《化学科学与工程前沿(英文)》 2020年 第14卷 第4期 页码 492-503 doi: 10.1007/s11705-019-1829-9
关键词: thin-film thermoelectric cooler interfaces cooling flux TE device fabrication
Kang-li ZHANG, Cong ZHANG, Fang-lin GU, Jian WANG
《信息与电子工程前沿(英文)》 2017年 第18卷 第6期 页码 788-795 doi: 10.1631/FITEE.1700018
Mesoscale fabrication of a complex surface for integral impeller blades
Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 116-131 doi: 10.1007/s11465-017-0426-1
Integral impeller is the most important component of a mini-engine. However, the machining of a mesoscale impeller with a complex integral surface is difficult because of its compact size and high accuracy requirement. A mesoscale component is usually manufactured by milling. However, a conventional milling tool cannot meet the machining requirements because of its size and stiffness. For the fabrication of a complex integral impeller, a micro-ball-end mill is designed in accordance with the non-instantaneous-pole envelope principle and manufactured by grinding based on the profile model of the helical groove and the mathematical model of the cutting edge curve. Subsequently, fractal theory is applied to characterize the surface quality of the integral impeller. The fractal theory-based characterization shows that the completed mesoscale integral impeller exhibits a favorable performance in terms of mechanical properties and morphological accuracy.
关键词: mesoscale fabrication micro-milling tool mesoscale milling impeller blade
基于拓扑绝缘体Sb2Te3的52 nm宽谱可调谐被动调Q掺镱光纤激光器 Research
王涛1,俞强1,2,郭琨1,史鑫尧2,阚雪芬3,徐轶君4,5,吴坚1,4,张凯2,周朴1
《信息与电子工程前沿(英文)》 2021年 第22卷 第3期 页码 287-436 doi: 10.1631/FITEE.2000577
Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 747-764 doi: 10.1007/s11465-021-0644-4
关键词: hybrid transfemoral prosthetic mechanism energy recycling wearable mechanical clutched device mechanical adaptive stability
Experiment and optimal design of a collection device for a residual plastic film baler
Qi NIU,Xuegeng CHEN,Chao JI,Jie WU
《农业科学与工程前沿(英文)》 2015年 第2卷 第4期 页码 347-354 doi: 10.15302/J-FASE-2015077
关键词: residual film collection device collection rate of residual film impurity of film package optimization baler
A novel flow electrode capacitive deionization device with spindle-shaped desalting chamber
《环境科学与工程前沿(英文)》 2023年 第18卷 第4期 doi: 10.1007/s11783-024-1800-y
● A spindle-shaped influent chamber was designed and equipped in FCDI system.
关键词: Spindle-shaped chamber Desalination performance Flow electrode capacitive deionization
Enhancing power generation of piezoelectric bimorph device through geometrical optimization
Action NECHIBVUTE,Albert CHAWANDA,Pearson LUHANGA
《能源前沿(英文)》 2015年 第9卷 第2期 页码 246-246 doi: 10.1007/s11708-015-0360-z
A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method
Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 333-339 doi: 10.1007/s11465-013-0276-4
A novel multi-probe micro-fabrication apparatus was developed based on the friction-induced fabrication method. The main parts of the apparatus include actuating device, loading system, and control system. With a motorized linear stage, the maximum fabrication area of 50 mm × 50 mm can be achieved, and the maximum sliding speed of probes can be as high as 10 mm/s. Through locating steel micro balls into indents array, the preparation of multi-probe array can be realized by a simple and low-cost way. The cantilever was designed as a structure of deformable parallelogram with two beams, by which the fabrication force can be precisely controlled. Combining the friction-induced scanning with selective etching in KOH solution, various micro-patterns were fabricated on Si(100) surface without any masks or exposure. As a low-cost and high efficiency fabrication device, the multi-probe micro-fabrication apparatus may encourage the development of friction-induced fabrication method and shed new light on the texture engineering.
关键词: friction-induced fabrication silicon surface texture friction multi-probe
《结构与土木工程前沿(英文)》 2023年 第17卷 第3期 页码 350-367 doi: 10.1007/s11709-022-0923-0
关键词: three-dimensional isolation rocking behavior rocking constraint device replaceable damping component sinusoidal test
Precision glass molding: Toward an optimal fabrication of optical lenses
Liangchi ZHANG,Weidong LIU
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 3-17 doi: 10.1007/s11465-017-0408-3
It is costly and time consuming to use machining processes, such as grinding, polishing and lapping, to produce optical glass lenses with complex features. Precision glass molding (PGM) has thus been developed to realize an efficient manufacture of such optical components in a single step. However, PGM faces various technical challenges. For example, a PGM process must be carried out within the super-cooled region of optical glass above its glass transition temperature, in which the material has an unstable non-equilibrium structure. Within a narrow window of allowable temperature variation, the glass viscosity can change from 105 to 1012 Pa·s due to the kinetic fragility of the super-cooled liquid. This makes a PGM process sensitive to its molding temperature. In addition, because of the structural relaxation in this temperature window, the atomic structure that governs the material properties is strongly dependent on time and thermal history. Such complexity often leads to residual stresses and shape distortion in a lens molded, causing unexpected changes in density and refractive index. This review will discuss some of the central issues in PGM processes and provide a method based on a manufacturing chain consideration from mold material selection, property and deformation characterization of optical glass to process optimization. The realization of such optimization is a necessary step for the Industry 4.0 of PGM.
关键词: precision glass molding optical lens constitutive modeling optimization manufacturing chain Industry 4.0
曹国忠,檀润华,张鹏,杨志岩
《中国工程科学》 2010年 第12卷 第1期 页码 30-35
为解决液体样品预处理装置中罐体之间黏稠液体定量转移无法准确实现的问题,综合应用发明问题解决理论(TRIZ)和约束理论(TOC)进行问题分析与求解。从系统的角度分析了样品预处理装置的组成及要素间的相互关系,基于TRIZ进化模式和TOC必备树确定了样品预处理装置的核心问题,应用基于TRIZ的计算机辅助创新软件InventionTool 3.0中的冲突模块、标准解模块和效应模块进行了设计方案的选择、评价和修正,提出了实现液体样品预处理装置中黏稠液体定量转移的原理解。
张建楠,李莹莹,周佳卉,朱烨琳,李兰娟
《中国工程科学》 2022年 第24卷 第1期 页码 198-204 doi: 10.15302/J-SSCAE-2022.01.021
科学的监管体系可以促进新兴事物的蓬勃和规范化发展。人工智能(AI)独立医用软件是人工智能时代赋能医疗健康领域的重要产物。随着人工智能的深入发展,人工智能独有的黑盒算法及自主学习能力引起了巨大的监管挑战。AI 独立医用软件的监管需要与时俱进,为最大程度降低人工智能医疗软件不良事件发生率和风险影响,我们亟待寻求更为科学合理的监管应对方案。对此,本文从AI 技术特征监管应对出发,针对算法变更管理、质量控制、安全追溯等监管上存在的痛点和难点问题梳理了国内外AI 独立医用软件相关监管制度和支撑资源的现状。分析总结了我国AI 独立医用软件监管在制度层面、支撑资源层面仍面临的一些问题与挑战,并针对上市后监管短板提出了措施建议:系统完善AI 独立医用软件监管制度,深化AI 独立医用软件监管支撑体系。以期能够为进一步完善我国AI 独立医用软件科学监管提供参考。
关键词: 独立医用软件,人工智能,监管科学
A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys
《能源前沿(英文)》 2023年 第17卷 第4期 页码 504-515 doi: 10.1007/s11708-022-0855-3
关键词: shape-memory alloy (SMA) elastocaloric effect (eCE) cooled seat cold thermal energy storage
Solid-state-reaction fabrication and properties of a high-doping Nd:YAG transparent laser ceramic
WU Yusong, LI Jiang, PAN Yubai, LIU Wenbin, AN Liqiong, WANG Shiwei, GUO Jingkun
《化学科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 248-252 doi: 10.1007/s11705-008-0048-6
关键词: neodymium-doped yttrium maximum absorbed microstructure fluorescence lifetime threshold
标题 作者 时间 类型 操作
Recent development and application of thin-film thermoelectric cooler
Yuedong Yu, Wei Zhu, Xixia Kong, Yaling Wang, Pengcheng Zhu, Yuan Deng
期刊论文
Efficient detection methods for amplify-and-forward relay-aided device-to-device systems with full-rate
Kang-li ZHANG, Cong ZHANG, Fang-lin GU, Jian WANG
期刊论文
Mesoscale fabrication of a complex surface for integral impeller blades
Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN
期刊论文
Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device
期刊论文
Experiment and optimal design of a collection device for a residual plastic film baler
Qi NIU,Xuegeng CHEN,Chao JI,Jie WU
期刊论文
Enhancing power generation of piezoelectric bimorph device through geometrical optimization
Action NECHIBVUTE,Albert CHAWANDA,Pearson LUHANGA
期刊论文
A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method
Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN
期刊论文
Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated
期刊论文
Precision glass molding: Toward an optimal fabrication of optical lenses
Liangchi ZHANG,Weidong LIU
期刊论文