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Study on the Microstructure of Laser Clad NiCrAl-Ceramic Coating

Chen Qinghua,Wei Lun,Long Jinming,Li Junchang

Strategic Study of CAE 2001, Volume 3, Issue 10, Pages 64-71

Abstract: The microstructure, phase, element distribution and micro-hardness were analyzed with the aid of microscope, X-ray diffraction, electron probe and micro-hardness tester.processing parameters as well as the chemical composition of coatings determine the microstructure and hardnessThe hardness and the boundary strength are significantly enhanced due to the presence of ceramic in the

Keywords： laser cladding metal-ceramic coating microstructure phases micro-hardness

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Study on TA2 Sheet Metal Bending With Thermal Stress Induced by Laser and Its Mechanical Properties

Zhou Yijun,Zhang Yongkang,You Wenming,Yin Chen,Zhang Chengyang

Strategic Study of CAE 2007, Volume 9, Issue 10, Pages 40-44

Abstract:

A 2. 5 kW CO₂ laser, a HVS-1000 Micro-hardness measuring Distribution of residual stress on the surface and variation of micro-hardness on the cross section Certain regularity appears in the variation of micro-hardness on the cross section of samples.

Keywords： laser technology thermal stress sheet metal bending residual stress micro-hardness

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Research on overlaying welding rod of high hardness maraging steel

PAN Yong-ming, CHEN Shao-wei

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4, Pages 465-467 doi: 10.1007/s11465-006-0060-9

Abstract: overlaying welding rod, which contains Co, Mo, W and V alloy, solved the problems of poor homogeneity of hardness

Keywords： development productive efficiency national homogeneity mechanical

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Influence of pressure and density on the rheological properties of rockfills

Erich BAUER, Zhongzhi FU, Sihong LIU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1, Pages 25-34 doi: 10.1007/s11709-012-0143-0

Abstract: To quantify the state of weathering a so-called “solid hardness” is used in the sense of a continuum

Keywords： rockfills solid hardness wetting deformation hypoplasticity creep

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Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4, Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract:

This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuitThe micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuitsIn our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect

Keywords： micro flow sensor flexible sensor surface flow sensing aerodynamic parameter micro aerial vehicle (MAV

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Development of soft kernel durum wheat

Craig F. MORRIS

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 3, Pages 273-278 doi: 10.15302/J-FASE-2019259

Abstract:

Kernel texture (grain hardness) is a fundamental and determining factor related to wheat ( spp.) milling

Keywords： soft durum wheat grain hardness puroindolines milling baking pasta noodles

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Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2, Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different biasBased on the theoretical results, micro accelerometer is fabricated and tested to study the influences

Keywords： Micro-Electro-Mechanical Systems (MEMS) micro accelerometer force-balanced micro accelerometer frequency

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Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Frontiers in Energy 2009, Volume 3, Issue 4, Pages 396-401 doi: 10.1007/s11708-009-0049-2

Abstract: Numerical simulations of flowing and boiling in micro channels are presented, including the modelingThe simulated results also show the details of 3-dimensional heat transfer and the flow in micro channels, which are helpful to the investigation of the mechanism of two-phase heat transfer and flow in micro

Keywords： volume-of-fluid (VOF) micro channel nucleate boiling bubble dynamics simulation

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onthe micro assembly is conducted between a micro shaft of 180 μm and a micro spindle sleeve of 200 μm.the metal sphere and the friction block of the micro driving unit are analyzed.micro operation and assembly for micro electro mechanical systems (MEMS) or other microelements in micro

Keywords： spherical micro-gripper friction coefficient dynamic frequency

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Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1, Pages 27-34 doi: 10.1007/s11709-016-0359-5

Abstract: This paper presents a study to investigate the feasibility of using Micro-Deval test, commonly used inMicro-Deval test, Washington degradation test and other tests currently specified in Alaska were conductedBased on the testing results, it is found that using Micro-Deval test for durability assessment of Alaskaaggregates was feasible and reproducible, and a high potential was revealed to use Micro-Deval testIt is recommended that Micro-Deval test be considered as an additional test for a certain period, but

Keywords： aggregate durability Washington degradation test Micro-Deval test

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Characterization of micro-mixing in a novel impinging streams reactor

Hui HU, Zhiming CHEN, Zhen JIAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 58-64 doi: 10.1007/s11705-009-0106-8

Abstract: increase of flux, the decrease of inter-nozzle distance and a suitable circulation can improve the micro-mixingBased on turbulence theory, it was estimated that the characteristic micro-mixing time was 0.002—0.02The micro-mixing time was related to the segregation index, which was in good agreement with those in

Keywords： micro-mixing impinging streams reactor turbulent mixing mass transfer

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Recent advances in micro- and nano-machining technologies

Shang GAO, Han HUANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 18-32 doi: 10.1007/s11465-017-0410-9

Abstract: The miniaturization of devices in different fields requires production of micro- and nano-scale componentsThis paper reviewed the recent advances in micro- and nano-machining technologies, including micro-cutting, micro-electrical-discharge machining, laser micro-machining, and focused ion beam machining.

Keywords： micro machining cutting electro discharge machining (EDM) laser machining focused ion beam (FIB)

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Special issue: Micro-electromechanical systems (MEMS)

Zhuangde JIANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4, Pages 457-458 doi: 10.1007/s11465-017-0492-4

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microbial fuel cell for enhancing the nitrogen removal of the anammox process coupled with iron-carbon micro-electrolysis

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1409-3

Abstract:

• MFC promoted the nitrogen removal of anammox with Fe-C micro-electrolysis

Keywords： Waste tire MFCs Micro-electrolysis Anammox Feammox

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Boiling heat transfer correlations for refrigerant mixtures flowing inside micro-fin tubes

ZHANG Xiaoyan, ZHANG Xingqun, CHEN Yunguang, YUAN Xiuling

Frontiers in Energy 2008, Volume 2, Issue 4, Pages 489-493 doi: 10.1007/s11708-008-0110-6

Abstract: parameters, a boiling heat transfer correlations was developed for refrigerant mixtures flowing inside micro-finpresent correlations is in good agreement with the experiment of refrigerant mixtures inside different micro-fin

Keywords： comparison micro-fin calculation transfer prediction