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Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 433-442 doi: 10.1007/s11705-021-2066-6

Abstract: selenide-nanocrystalline semiconductor was synthesized via one-step mechanochemical synthesis after 5 min milling in a planetaryball mill.sub>2Se synthesis can be easily adapted to production dimensions using an industrial vibratory mill

Keywords： Cu2Se     berzelianite     nanocrystalline semiconductor     mechanochemical synthesis     planetary ballmill    

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Bioleaching of copper from pre and post thermally activated low grade chalcopyrite contained ball mill

Sandeep PANDA, Nilotpala PRADHAN, Umaballav MOHAPATRA, Sandeep K. PANDA, Swagat S. RATH, Danda S. RAO, Bansi D. NAYAK, Lala B. SUKLA, Barada K. MISHRA

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 281-293 doi: 10.1007/s11783-013-0484-5

Abstract: Bioleaching of a low grade chalcopyrite (ball mill spillage material) was tested for copper recovery

Keywords： ball mill spillage     thermal activation     bioleaching     copper    

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Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 475-478 doi: 10.1007/s11465-006-0063-6

Abstract: A new type of planetary indexing cam mechanism called type !c is presented.

Keywords： continuity     planetary     average transmission     symmetry     intermittent    

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characterization of nanocrystalline ZrO2-7%Y2O3 powders for thermal barrier coatings by high-energy ball

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 176-181 doi: 10.1007/s11465-011-0220-4

Abstract:

High-energy ball milling is an effective method to produce nanocrystalline oxides.In this study, a conventional ZrO2-7%Y2O3spray powder was ball-milledBall-milling led to lattice microstrains.

Keywords： nanostrucured powders     yttria stabilized zirconia (YSZ)     high-energy ball milling     thermal barrier coatings    

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Adsorption of phosphate on magnetite-enriched particles (MEP) separated from the mill scale

Muhammad Kashif Shahid, Yunjung Kim, Young-Gyun Choi

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1151-2

Abstract: MEP were separated from mill scale at low magnetic intensity i.e., 300 to 500 gauss.A new method and device were introduced for the separation of MEP from the mill scale at low magnetic

Keywords： Adsorption     Magnetite     Mill-scale     Phosphate     Wastewater treatment    

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Optimization of thermophilic anaerobic-aerobic treatment system for Palm Oil Mill Effluent (POME)

Yijing CHAN,Meifong CHONG,Chunglim LAW

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 334-351 doi: 10.1007/s11783-014-0626-4

Abstract: (COD), Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS) concentrations) in Palm Oil Mill

Keywords： palm oil mill effluent (POME)     anaerobic     aerobic     thermophilic     biogas     optimization    

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Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 88-94 doi: 10.1007/s11465-013-0361-8

Abstract:

Planetary gearboxes operate usually in non-stationary conditions generated mainly by variable loadsIn order to understand the dynamic behavior of planetary gearboxes in such conditions, a mathematic model

Keywords： planetary gearbox     non-stationary conditions     variable load     dynamic response     time frequency analysis    

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Augmented hydrogen production by gasification of ball milled polyethylene with Ca(OH)

Giovanni Cagnetta, Kunlun Zhang, Qiwu Zhang, Jun Huang, Gang Yu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1096-5

Abstract:

PE ball milling pretreatment induces higher H2 production

Keywords： Hydrogen production     Gasification     Plastic waste     High energy ball milling    

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Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 80-87 doi: 10.1007/s11465-013-0362-7

Abstract: , has been extended with internal meshing features, and thus increasing its capabilities to include planetaryThe parameters and characteristics of the planetary transmission used in the paper are introduced.Two different configurations for the planetary transmission are used, attending to the fixed or floating

Keywords： gear     planetary     epicyclic     transmission     load sharing     transmission error    

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Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 28-36 doi: 10.1007/s11465-008-0007-4

Abstract: This research focuses on the characteristics of how a ball-screw changes its temperature correspondingThe temperature distribution for the ball-screw at different times and directions is shown.By simulating and modeling the temperature field and thermal deformation of the ball-screw under periodicallyvarying heat sources, this paper describes the thermal dynamic characteristics of the ball-screw underBy testing the thermal dynamic characteristics of the ball-screw, the numerical solution is validated

Keywords： numerical solution     temperature corresponding     temperature distribution     end-most     ball-screw    

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Effect of friction coefficients on the dynamic response of gear systems

BALL, Xuejun LI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 397-405 doi: 10.1007/s11465-017-0415-4

Abstract:

The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.

Keywords： dynamic response     friction coefficient     wind loads     wind turbine gearbox    

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Integration of Computer Control Systems Suitable for Hot Strip Mill

Sun Yikang

Strategic Study of CAE 2000, Volume 2, Issue 1,   Pages 73-76

Abstract:

The requirements for a computer control system used for a rolling mill, especially for hot strip mill

Keywords： rolling automation     automation of hot strip mill     distributed computer control system     system integration    

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The Finite Element Analysis of Upper Bearing Box for AGC Reformation of a 2300 mm Mill

Wang Huachuan,Wang Ailing

Strategic Study of CAE 2001, Volume 3, Issue 1,   Pages 83-84

Abstract:

The reformation of upper bearing box in AGC system is described, its strength is checked by using FEA and the best result is provided.

Keywords： mill reformation     finite element analysis (FEA)     sevo-cylinder    

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Kinematic error separation on five-axis NC machine tool based on telescoping double ball bar

Min WANG, Jianzhong HU, Tao ZAN

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 431-437 doi: 10.1007/s11465-010-0110-1

Abstract: Telescoping double ball bar is used to measure the relative distance between the spindle and the worktableFinally, the value measured by telescoping double ball bar is substituted into the model to obtain kinematic

Keywords： error modeling     error separation     telescoping double ball bar     five-axis numerical control (NC) machining    

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DART Mission Shows Potential for Planetary Defense by Smashing Asteroid into New Orbit

Chris Palmer

Engineering 2023, Volume 24, Issue 5,   Pages 7-9 doi: 10.1016/j.eng.2023.03.002

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Title Author Date Type Operation

Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Journal Article

Bioleaching of copper from pre and post thermally activated low grade chalcopyrite contained ball mill

Sandeep PANDA, Nilotpala PRADHAN, Umaballav MOHAPATRA, Sandeep K. PANDA, Swagat S. RATH, Danda S. RAO, Bansi D. NAYAK, Lala B. SUKLA, Barada K. MISHRA

Journal Article

Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Journal Article

characterization of nanocrystalline ZrO2-7%Y2O3 powders for thermal barrier coatings by high-energy ball

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA

Journal Article

Adsorption of phosphate on magnetite-enriched particles (MEP) separated from the mill scale

Muhammad Kashif Shahid, Yunjung Kim, Young-Gyun Choi

Journal Article

Optimization of thermophilic anaerobic-aerobic treatment system for Palm Oil Mill Effluent (POME)

Yijing CHAN,Meifong CHONG,Chunglim LAW

Journal Article

Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Journal Article

Augmented hydrogen production by gasification of ball milled polyethylene with Ca(OH)

Giovanni Cagnetta, Kunlun Zhang, Qiwu Zhang, Jun Huang, Gang Yu

Journal Article

Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

Journal Article

Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Journal Article

Effect of friction coefficients on the dynamic response of gear systems

BALL, Xuejun LI

Journal Article

Integration of Computer Control Systems Suitable for Hot Strip Mill

Sun Yikang

Journal Article

The Finite Element Analysis of Upper Bearing Box for AGC Reformation of a 2300 mm Mill

Wang Huachuan,Wang Ailing

Journal Article

Kinematic error separation on five-axis NC machine tool based on telescoping double ball bar

Min WANG, Jianzhong HU, Tao ZAN

Journal Article

DART Mission Shows Potential for Planetary Defense by Smashing Asteroid into New Orbit

Chris Palmer

Journal Article