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Experimental study on premixed combustion of spherically propagating methanol-air-nitrogen flames

Xiangang WANG, Zhiyuan ZHANG, Zuohua HUANG, Xibin WANG, Haiyan MIAO,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 223-233 doi: 10.1007/s11708-010-0016-y

Abstract: The outward propagation and development of surface instability of the spark-ignited spherical premixedThe initial pressure has a significant influence on the occurrence of the flame front cellular structureAt the elevated pressures, the cracks on the flame surface branch and develop into the cell structure, the buoyancy effect and cooling effect from the spark electrodes have a significant impact on the flame

Keywords： methanol     spherical flame     propagation characteristics     flame instabilities    

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Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 988-999 doi: 10.1007/s11708-021-0755-y

Abstract: “Flame-street” is an interesting diffusion flame behavior in which a series of flame-segments is separatelywas experimentally and numerically investigated with the focus on the steady-state, thermo-chemical flameIn the present paper, the dynamic formation process of a methane-oxygen diffusion flame-street structureInterestingly, different propagation features were observed for the three flame segments: The leadingflame experienced a flame shape/type change from a tribrachial structure in its fast-propagating phase

Keywords： micro-combustion     flame-street     diffusion flame     mixing layer     flame propagation speed    

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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 ceramicFirst, the space coordinate relationship of the spherical micro actuator and a dynamic model are setwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onFinally, the characteristics of the spherical micro actuator influenced by the mass of the metal sphereThe experimental results validate the back rotation vibration model of the spherical micro actuator.

Keywords： spherical     micro-gripper     friction coefficient     dynamic     frequency    

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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 147-152 doi: 10.1007/s11465-009-0025-x

Abstract: Based on the analysis of the principle and flame movement of a pipe cutting machine tool, a retrofitNC flame pipe cutting machine tool (NFPCM) that can meet the demands of cutting various pipes is proposed

Keywords： flame pipe cutting     flame incision tracks     CNC     open architecture CNC system    

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Experimental study on the laminar flame speed of hydrogen/natural gas/air mixtures

Chen DONG, Qulan ZHOU, Xiaoguang ZHANG, Qinxin ZHAO, Tongmo XU, Shi’en HUI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 417-422 doi: 10.1007/s11705-010-0515-8

Abstract: Laminar flame speeds of hydrogen/natural gas/air mixtures have been measured over a full range of fuelHigh sensitivity scientific CCD camera is use to capture the image of laminar flame.The reaction zone area is employed to calculate the laminar flame speed.The laminar flame speeds of hydrogen/air mixture and natural gas/air mixture reach their maximum valuesUsing these formulas, the laminar flame speed at different hydrogen fractions and equivalence ratios

Keywords： laminar flame speed     experimental study     Bunsen flame    

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Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 263-276 doi: 10.1007/s11708-021-0791-7

Abstract: The laminar flame speeds of ammonia mixed with syngas at a high pressure, temperature, and different

Keywords： ammonia mixed with syngas     laminar flame speed     kinetic model     sensitivity analysis     pathway analysis    

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Molybdenum disulfide@nickel phyllosilicate hybrid for improving the flame retardancy and wear resistance

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2114-2126 doi: 10.1007/s11705-023-2357-1

Abstract: The thermal stability, flame retardancy, and frictional performances of epoxy composites were studied

Keywords： molybdenum disulfide     nickel phyllosilicate     epoxy resin     flame retardancy    

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Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 698-710 doi: 10.1007/s11465-021-0646-2

Abstract: seven-degree-of-freedom (7-DOF) redundant anthropomorphic hydraulically actuated manipulator with a novel roll–pitch–yaw sphericalA hybrid series–parallel mechanism is presented to achieve the spherical wrist design, which consistsDesigned as a 1R PRRR-1S PU mechanism (“R”, “P”, “S”, and “U” denote revolute, prismatic, spherical,The 7-DOF manipulator is then designed, and its third joint axis goes through the spherical center to

Keywords： hydraulic manipulator     inverse kinematic     redundant design     spherical wrist    

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A low-density polyethylene composite with phosphorus-nitrogen based flame retardant and multi-walledcarbon nanotubes for enhanced electrical conductivity and acceptable flame retardancy

Yong Luo, Yuhui Xie, Renjie Chen, Ruizhi Zheng, Hua Wu, Xinxin Sheng, Delong Xie, Yi Mei

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1332-1345 doi: 10.1007/s11705-021-2035-0

Abstract: Design and exploitation of flame retardant polymers with high electrical conductivity are desired forHerein, a novel phosphorus-nitrogen intumescent flame retardant was synthesized from pentaerythritolLow-density polyethylene was combined with the flame retardant and multi-walled carbon nanotubes to formThe electrical conductivity, mechanical properties, thermal performance, and flame retardancy of theFurthermore, the combination of multi-walled carbon nanotubes and phosphorus–nitrogen flame retardant

Keywords： MWCNTs     PEPA     electrical conductivity     flame retardant     low density polyethylene    

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Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 45-51 doi: 10.1007/s11705-009-0308-0

Abstract: Both cubic and spherical CoPt nanoparticles were made using cobalt carbonyl and platinum 2,4-pentanedionate

Keywords： spherical     2     4-pentanedionate     adamantanecarboxylic     acetylacetonate     electrocatalytic    

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A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propane

Jie JI, Junrui DUAN, Huaxian WAN

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1017-1026 doi: 10.1007/s11708-020-0716-x

Abstract: The interaction of multiple fires may lead to a higher flame height and more intense radiation flux thana single fire, which increases the possibility of flame spread and risks to the surroundings.For non-merging flames ( / >0.368), the flame height is almost identical to a single fire; for merging), a quantitative analysis of the flame height, merging point height, and air entrainment was formed,and the calculated merging flame heights show a good agreement with the measured experimental values

Keywords： flame interaction     air entrainment     flame height     multi-point source model     thermal radiation    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: mechanisms, the instantaneous poles (or instant poles, in brief) can be used for kinematic analysis in sphericalshowing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom (2-DOF) spherical

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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Flame-retardant properties of

Kumar Sai SMARAN, Rajashekar BADAM, Raman VEDARAJAN, Noriyoshi MATSUMI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 163-171 doi: 10.1007/s11708-018-0554-2

Abstract: LiPF in 1:1 ethylene carbonate (EC): dimethyl carbonate (DMC) {1 M LiPF -EC: DMC}, in terms of their flameNaked flame tests confirm that the organic-inorganic hybrid electrolytes are less susceptible to flamesTherefore, these hybrids are only oxidized when subjected to a flame unlike other commercial electrolytes

Keywords： borosilicate network     organic-inorganic hybrids     self-extinguishability     nonflammability     lithium batteries     flame-retardants    

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Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 379-385 doi: 10.1007/s11465-009-0075-0

Abstract: In this paper, the direct and inverse kinematics of an orthogonal spherical two-degree-of-freedom parallelSelf-motions, which are different from the general spherical 5 parallel mechanisms, are also discussed

Keywords： 2-DOF orthogonal spherical parallel mechanism     singularity loci     self-motions    

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A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 344-353 doi: 10.1007/s11465-014-0320-z

Abstract: paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (two-DOF) spherical

Keywords： spherical mechanisms     instantaneous poles     Aronhold-Kennedy theorem     great circles     pencil of meridian    

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Title Author Date Type Operation

Experimental study on premixed combustion of spherically propagating methanol-air-nitrogen flames

Xiangang WANG, Zhiyuan ZHANG, Zuohua HUANG, Xibin WANG, Haiyan MIAO,

Journal Article

Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Journal Article

NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Journal Article

Experimental study on the laminar flame speed of hydrogen/natural gas/air mixtures

Chen DONG, Qulan ZHOU, Xiaoguang ZHANG, Qinxin ZHAO, Tongmo XU, Shi’en HUI

Journal Article

Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Journal Article

Molybdenum disulfide@nickel phyllosilicate hybrid for improving the flame retardancy and wear resistance

Journal Article

Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Journal Article

A low-density polyethylene composite with phosphorus-nitrogen based flame retardant and multi-walledcarbon nanotubes for enhanced electrical conductivity and acceptable flame retardancy

Yong Luo, Yuhui Xie, Renjie Chen, Ruizhi Zheng, Hua Wu, Xinxin Sheng, Delong Xie, Yi Mei

Journal Article

Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Journal Article

A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propane

Jie JI, Junrui DUAN, Huaxian WAN

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Flame-retardant properties of

Kumar Sai SMARAN, Rajashekar BADAM, Raman VEDARAJAN, Noriyoshi MATSUMI

Journal Article

Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Journal Article

A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article