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Study on micro-texture and skid resistance of aggregate during polishing

Zhenyu QIAN, Lingjian MENG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 346-352 doi: 10.1007/s11709-017-0409-7

Abstract: The skid resistance performance of pavement is closely related to the micro-texture of pavement aggregate, while there is very few research on the relationship between micro-texture and the skid resistance.the results of independent T-test and the polishing resistance analysis, it shows that the surface texturesurface ( ) and the mean summit curvature ( ) are selected to describe the characteristics of aggregate micro-textureThe contribution of micro-texture to the skid resistance can be described with the secondary polynomial

Keywords： skid resistance of pavement micro-texture aggregates polishing test

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Laboratory and field evaluation of asphalt pavement surface friction resistance

Zhong WU, Chris ABADIE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3, Pages 372-381 doi: 10.1007/s11709-017-0463-1

Abstract: were evaluated in laboratory using an accelerated polishing and testing procedure considering both micro- and macro texture properties.pavement sections using different in situ devices including Dynamic Friction Tester (DFT), Circular Texture

Keywords： friction skid resistance polishing PSV LWST micro-texture macro-texture

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A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method

Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 333-339 doi: 10.1007/s11465-013-0276-4

Abstract:

A novel multi-probe micro-fabrication apparatus was developed based on the friction-induced fabricationThrough locating steel micro balls into indents array, the preparation of multi-probe array can be realizedCombining the friction-induced scanning with selective etching in KOH solution, various micro-patternsAs a low-cost and high efficiency fabrication device, the multi-probe micro-fabrication apparatus mayencourage the development of friction-induced fabrication method and shed new light on the texture engineering

Keywords： friction-induced fabrication silicon surface texture friction multi-probe

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Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0704-4

Abstract: In this way, the arbitrary-shaped surface texture with the best comprehensive effect in the EHA pump

Keywords： electro-hydrostatic actuator axial piston pump slipper/swash plate interface multi-objective optimization surface texture

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Multi-resolution texture synthesis from turntable image sequences

Xuedong WANG, Xiaojun WU, Xiaorong ZHANG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 72-80 doi: 10.1007/s11465-012-0305-8

Abstract:

Texture synthesis and texture mapping are important technologies for rendering realistic three-dimensionalIn this paper, we propose a fast method to construct high quality texture map for multi-resolution texturerectangular texture map for the whole mesh.Another approach to construct a texture map is using Stretch-minimizing mesh parameterization.Finally, we map the texture to mesh model to verify the quality of these two methods.

Keywords： texture synthesis multi-resolution texture map texture mapping

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Effect of steady shear on multi-axial texture of symmetric diblock copolymers

XU Hui, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1, Pages 26-34 doi: 10.1007/s11705-007-0006-8

Abstract: The effect of steady shear on multi-axial texture of symmetric diblock copolymer was investigated byThrough modifying the periodic boundary condition, the parallel-transverse biaxial texture and perpendicular-parallel-transversetriaxial texture have been observed.In the formation of the multi-axial texture, there are two critical velocities μ and µ, at which the

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The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificial

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2, Pages 269-278 doi: 10.1007/s11783-014-0672-y

Abstract: has been paid to its variability in the urban landscapes with respect to the possible influence of textureThe texture stratification significantly affected the vertical distribution of moisture in the non-irrigatedfield capacity, gravity flow led to increased moisture with depth and thus eliminated the influence of texture

Keywords： moisture vertical distribution moisture temporal variation texture stratification irrigation meteorological

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Application of MoS in the space environment: a review

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0755-1

Abstract: A considerable portion of space mechanism failures are related to space tribological problems. Cold welding in high vacuum; surface erosion and collision damage caused by various radiations, high temperature oxidation under atomic oxygen (AO) bombardment; and thermal stress caused by temperature alternation all alter the physical, chemical, and friction properties of materials. In particular, the space vibration caused by alternating temperatures and microgravity environments can alter the motion of the contact body, further affecting its friction properties. Improving the friction properties of contact surfaces in the space environment is an important way to extend the service life of spacecraft. Traditional lubricants can no longer meet the lubrication requirements of the space environment. This study describes the characteristics of the space environment and the applications of solid lubricants. The friction properties of MoS₂, a solid lubricant widely used in space, are discussed. The synergistic lubrication of MoS₂ with surface textures or metals is presented. Advances in research on the friction properties of collision sliding contacts in the space environment are reviewed. The combination of MoS₂ and soft metals with surface textures is introduced to reduce the effects of vibration environments on the friction properties of moving parts in space mechanisms. Finally, the challenges and future research interests of MoS₂ films in space tribology are presented.

Keywords： MoS₂ soft metal space environment surface texture synergistic effect vibration

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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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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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A Method for License Plate Localization based on Texture and Wavelet Analysis

Huang Wei,Lu Xiaobo,Yu Yanxiang,Ling Xiaojing

Strategic Study of CAE 2004, Volume 6, Issue 3, Pages 19-24

Abstract:

This paper presents a method for vehicle license plate localization using texture and wavelet analysisAccording to the distribution regularities of the characters in the license plate, a binary texture primitive

Keywords： texture wavelet analysis primitive license plate localization

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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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Effect of salting process on the texture and physicochemical properties of turbot

Wang Tiantian,Li Zhenxing,Lin Hong,Guo Xiaohua

Strategic Study of CAE 2014, Volume 16, Issue 9, Pages 64-68

Abstract: the effects of salt concentration，curing time and curing methods on the quality of salted turbot，the texture

Keywords： salting process turbot texture physicochemical properties sensory evaluation

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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