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A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 357-373 doi: 10.1007/s11709-019-0599-2

Abstract: In conjunction with an X-ray micro-tomography (termed as X-ray μCT hereafter) facility and advanced imageprocessing techniques, this apparatus can be used for investigation of the micro-scale mechanicalbehavior of granular soils under shear.apparatus, in its combined use of X-ray μCT imaging techniques, is a powerful tool to investigate the micro-scalemechanical behavior of granular soils.

Keywords： triaxial apparatus     X-ray μCT     in situ test     micro-scale mechanical behavior     granular soils    

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Strengthening of polysulfone membranes using hybrid mixtures of micro- and nano-scale modifiers

Peyman P. Selakjani, Majid Peyravi, Mohsen Jahanshahi, Hamzeh Hoseinpour, Ali S. Rad, Soodabeh Khalili

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 174-183 doi: 10.1007/s11705-017-1670-y

Abstract: Polysulfone (PSf) membranes were modified by either a new organic modifier (sulfonated poly(ether sulfide sulfone), SPESS) or a traditional modifier (rice hulk). These membranes were further reinforced with either multi-walled carbon nanotubes (MWCNTs) or silica nanoparticles. Having a dye rejection of 98.46%, the reinforced membranes increased more than 50% in strength but no change in solution flux was observed. The morphological and roughness studies were conducted using scanning electron microscopy and atomic force microscopy. Moreover, the PSF membranes were also characterized by differential scanning calorimetry. Modifying the membranes with organic modifier or nanofiller increases the glass transition temperature ( ). The highest and strength were observed for the PSf-SPESS-MWCNT membrane. SPESS decreases surface roughness but MWCNT increases roughness on the nanoscale. All membranes show a bimodal pore size distribution, whereas the PSf-SPESS-MWCNT membrane exhibits a relatively uniform distribution of macroscopic and microscopic pores.

Keywords： polysulfone membrane     mechanical properties     micro- and nano-modification     binary and ternary system     dye    

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Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review

Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 359-382 doi: 10.1007/s11708-018-0546-2

Abstract: The main concerns in the world today, especially in the energy field, are subjected to clean, efficient, and durable sources of energy. These three aspects are the main goals that scientist are paying attention to. However, the various types of energy resources include fossil and sustainable ones, but still some challenges are chasing these kinds from energy conversion, storage, and efficiency. Hence, the most reliable and considered energy resource nowadays is the utilized one which is as highly efficient, clean, and everlasting as possible. So, in this review, an attempt is made to highlight one of the promising types as a clean and efficient energy resource. Solid oxide fuel cell (SOFC) is the most efficient type of the fuel cell types involved with hydrogen and hydrocarbon-based fuels, especially when it works with combined heat and power (CHP). The importance of this type is due to its nature of work as conversion tool from chemical to electrical for generation of power without noise, pollution, and can be safely handled.

Keywords： solid oxide fuel cells (SOFCs)     clean energy     design     micro-scale     nano-scale     performance    

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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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Micro-spectrophotometer based on micro electro-mechanical systems technology

ZHOU Lianqun, LI Zhenggang, WU Yihui, ZHANG Ping, XUAN Ming, JIA Hongguang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 37-43 doi: 10.1007/s11465-008-0001-x

Abstract: A new mini-spectrophotometer is developed by adopting micro-silicon-slit and micro-silicon-fixer, whichare based on micro electro-mechanical systems (MEMS) technology.Both the micro-silicon-slit and the micro-silicon-fixer have their own features, such as small volumeThe final results show that the new mini-spectrophotometer with micro-silicon-slit and micro-silicon-fixer

Keywords： mini-spectrophotometer     referenced     micro-silicon-fixer     electro-mechanical     correlation coefficient    

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Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1047-1057 doi: 10.1007/s11709-021-0755-3

Abstract: The micro-steel fibers (MSF) were added to MPC-based concrete to enhance its ductility due to the highThis paper investigates the effect of MSF volume fraction on the mechanical properties of a new pattern

Keywords： magnesium phosphate cement-based concrete     micro-steel fibers     four-point flexural strength     compressive    

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A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0747-1

Abstract: efficient tools for biophysical force measurement, which is essential for the exploration of cellular behaviorHowever, attention has been rarely given on the influences of external mechanical and internal electricalIn this work, a bionic swallow structure design norm was developed for mechanical decoupling, and theinfluences of structural parameters on mechanical behavior were fully analyzed and optimized.High immunity to mechanical disturbances was maintained simultaneously, i.e., less than 0.369% and 0.058%

Keywords： micro-electro-mechanical system capacitive sensor     bionics     operation instability     mechanical and electrical    

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Correction to: Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1071-1071 doi: 10.1007/s11709-021-0736-6

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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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A comparative study of the mechanical properties, fracture behavior, creep, and shrinkage of chemically

Mahdi AREZOUMANDI, Mark EZZELL, Jeffery S VOLZ

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 36-45 doi: 10.1007/s11709-014-0243-0

Abstract: This study presents the results of an experimental investigation that compares the mechanical properties, fracture behavior, creep, and shrinkage of a chemically-based self-consolidating concrete (SCC) mix

Keywords： admixture     conventional concrete (CC)     creep     fracture mechanic     mechanical Properties     self-consolidating    

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Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and resistance to

Sawan KUMAR, Ajitanshu VEDRTNAM, S. J. PAWAR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1446-1462 doi: 10.1007/s11709-019-0568-9

Abstract: inclusion of different proportions of Mango/Sheesham/Mahogany/Babool dust to polypropylene for improving mechanical, wear behavior and biodegradability of wood-plastic composite (WPC).The mechanical, wear, and morphological characterizations of fabricated WPCs were carried out using standardThe WPCs consisting of Babool and Sheesham dust were having superior mechanical properties whereas the

Keywords： wood-plastic composites     mechanical testing     wear     biodegradability     injection molding     weathering    

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Improvement of mechanical behavior of buried pipelines subjected to strike-slip faulting using textured

Mahdi IZADI, Khosrow BARGI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1105-1119 doi: 10.1007/s11709-019-0539-1

Abstract: The present study investigates the mechanical behavior of a new generation of buried pipelines, dubbed

Keywords： buried pipeline     textured pipeline     local buckling    

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Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 110-122 doi: 10.1007/s11709-018-0476-4

Abstract: modulus gradient properties, and the condition of the AC overlay and old pavement contact plane on the mechanicalbehaviors of AC overlays, as well as to quantify the influence of the degree of anisotropy on the mechanicalThe mechanical behaviors of the AC overlay were numerically obtained using the three-dimensional finiteComparing the mechanical behavior in terms of surface deflection, stress, and strain of the anisotropybehavior of the AC overlay.

Keywords： asphalt concrete overlay     anisotropy     temperature gradients     modulus gradients     finite element simulation     sensitivity analysis    

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Sensitivity analysis of torsional vibration behavior of the shafting of a turbo generator set to changesof its mechanical parameters

XIE Danmei, ZHANG Hengliang, DONG Chuan, LIU Zhanhui, YANG Changzhu

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 483-486 doi: 10.1007/s11708-007-0072-4

Abstract: Aiming at a 300 MW turbo-generator model, the sensitivity of natural torsional frequencies and modes of torsional vibration (TV) to the rotational inertia and stiffness of the turbo-generator were analyzed. Calculation results show

Keywords： Calculation     MW turbo-generator     sensitivity     stiffness    

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Experimental study on bubble behavior and CFD simulation of large-scale slurry bubble column reactor

Haoyi SUN, Tao LI, Weiyong YING, Dingye FANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 515-522 doi: 10.1007/s11705-010-0516-7

Abstract: three-phase fluidized reactor with outstanding advantages compared with other reactors and is difficult to scale-upIn this paper, an experiment was conducted to investigate the bubble behavior in SBCR with a height of

Keywords： SBCR     four-channel conductivity probe     hydrodynamics     CFD    

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Title Author Date Type Operation

A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Journal Article

Strengthening of polysulfone membranes using hybrid mixtures of micro- and nano-scale modifiers

Peyman P. Selakjani, Majid Peyravi, Mohsen Jahanshahi, Hamzeh Hoseinpour, Ali S. Rad, Soodabeh Khalili

Journal Article

Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review

Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD

Journal Article

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Journal Article

Micro-spectrophotometer based on micro electro-mechanical systems technology

ZHOU Lianqun, LI Zhenggang, WU Yihui, ZHANG Ping, XUAN Ming, JIA Hongguang

Journal Article

Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Journal Article

A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Journal Article

Correction to: Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and

Journal Article

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

Lili CHEN, Wu ZHOU

Journal Article

A comparative study of the mechanical properties, fracture behavior, creep, and shrinkage of chemically

Mahdi AREZOUMANDI, Mark EZZELL, Jeffery S VOLZ

Journal Article

Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and resistance to

Sawan KUMAR, Ajitanshu VEDRTNAM, S. J. PAWAR

Journal Article

Improvement of mechanical behavior of buried pipelines subjected to strike-slip faulting using textured

Mahdi IZADI, Khosrow BARGI

Journal Article

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Journal Article

Sensitivity analysis of torsional vibration behavior of the shafting of a turbo generator set to changesof its mechanical parameters

XIE Danmei, ZHANG Hengliang, DONG Chuan, LIU Zhanhui, YANG Changzhu

Journal Article

Experimental study on bubble behavior and CFD simulation of large-scale slurry bubble column reactor

Haoyi SUN, Tao LI, Weiyong YING, Dingye FANG

Journal Article