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Calculation of Bond-length, Bond-energy and Force Constant of Hydrogen Molecule by Classical Mechanics

Chen Jing

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 39-43

Abstract: scale is used, therefore in hydrogen molecule the product of energy and time is far larger than Planck Constantclassical mechanics, and the hydrogen molecule bond-length Re, bonding-energy De and forceconstant k are represented Re = 〓a0,De = ze/4〓a0,k = ze/

Keywords： hydrogen molecule     bond-length     bond-energy     force constant    

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Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 991-1009 doi: 10.1007/s11705-022-2259-7

Abstract: insulation level of ultrahigh voltage transformers and reduce their weight and size, reducing the dielectric constantThe dielectric constant of a cellulose insulating paper can be effectively reduced by chemical or physicalforeign and domestic research status of the use of modification technology to reduce the dielectric constantThis paper can provide a reference for further research on low dielectric constant cellulose insulating

Keywords： low dielectric constant     chemical and physical modification     cellulose insulating paper     transformer    

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Calculation of H2+ Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 29-32

Abstract: The dynamic equilibrium between Coulomb attraction and inter-nuclei repulsion force was discussed respectivelyThree formulas deduced from above model for bond-length, bond-energy and force constant of hydrogen molecule

Keywords： hydrogen molecule ion     bond-length     bond-energy     force constant    

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The Negative Electrostatic Spring Effect Analysis and Experimental Validation of Silicon Micromechanical Vibrating zaxis Gyroscope

Xia Dunzhu,Zhou Bailing,Wang Shourong

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 66-68

Abstract:  The negative electrostatic spring effect of feedback force generator is analyzed in focus,   By computing the relation between the resonant frequency and feedback force added on the sensebetween the ne gative electrostatic spring coefficient in sense axis and the voltage on the feedback force

Keywords： silicon micromechanical z-axis gyroscope     negative electrostatic spring constant     feedback force generator    

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Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 279-289 doi: 10.1007/s11708-014-0312-z

Abstract: Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stirling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

Keywords： hybrid vertical axis wind turbine     Stirling engine     solar-thermal energy     wind energy     constant torque spring    

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Modeling limit force capacities of high force to volume lead extrusion dampers

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 609-622 doi: 10.1007/s11709-021-0724-x

Abstract: Small volumetric sizes and high force capacities define high-force-to-volume (HF2V) devices, which canHowever, the design of such devices for specific force capacities has proven difficult based on the complexitiesThis study developed upper- and lower-bound force capacity estimates from analytical mechanics basedThe proposed models were validated by comparing the predicted bounds to experimental force capacity data/sub>) pair has a mean lower-bound gap of 36%, meaning the lower bound was 74% of the actual device force

Keywords： extrusion     lead dampers     upper and lower bound     analytical modelling     limit force    

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Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 973-987 doi: 10.1007/s11708-021-0762-z

Abstract: A fan-stirred combustion chamber is deve-loped for spherically expanding flames, with P and T up to 10 bar and 473 K, respectively. Turbulence characteristics are estimated using particle image velocimetry (PIV) at different initial pressures (P = 0.5–5 bar), fan frequencies (ω = 0–2000 r/min), and impeller diameters (D = 100 and 114 mm). The flame propagation of methanol/air is investigated at different turbulence intensities (u′=0–1.77 m/s) and equivalence ratios (φ = 0.7–1.5). The results show that u′ is independent of P and proportional to ω, which can be up to 3.5 m/s at 2000 r/min. LT is independent of P and performs a power regression with ω approximately. The turbulent field is homogeneous and isotropic in the central region of the chamber while the inertial subrange of spatial energy spectrum is more collapsed to –5/3 law at a high ReT. Compared to laminar expanding flames, the morpho-logy of turbulent expanding flames is wrinkled and the wrinkles will be finer with the growth of turbulence intensity, consistent with the decline of the Taylor scale and the Kolmogorov scale. The determined SL in the present study is in good agreement with that of previous literature. The SL and ST of methanol/air have a non-monotonic trend with φ while peak ST is shifted to the richer side compared to SL. This indicates that the newly built turbulent combustion chamber is reliable for further experimental study.

Keywords： fan-stirred combustion chamber     turbulence characteristics     particle image velocimetry (PIV)     methanol     turbulent expanding flames    

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Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 473-478 doi: 10.1007/s11708-016-0420-z

Abstract: A dual input LED lighting scheme with constant illumination is proposed in this paper.microcontroller is programmed to operate a changeover switch as well as a DC-DC converter for uninterrupted and constant

Keywords： photovoltaic     LED light     dual input     P&O algorithm    

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The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11705-009-0266-6

Abstract: energy consumption of a batch stripper was compared to that of a batch rectifier under “general constantreflux” and “general constant distillate composition” with the ratio of minimum energyenergy consumption of a batch stripper is less than that of a batch rectifier under “general constantreflux” and “general constant distillate composition”.relative volatility is low, a batch stripper can also consume less energy only in the “general constant

Keywords： constant reflux     feed     energy consumption     general constant     product purity    

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Quality control based on electrode displacement and force in resistance spot welding

Chuntao JI, Lipeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 412-417 doi: 10.1007/s11465-010-0114-x

Abstract: The behaviors of electrode displacement and force during spot welding under various conditions, suchAn electrode force peak is observed and believed relevant to the sufficient nugget size.

Keywords： aluminum     electrode displacement     electrode force     nugget size     data acquisition    

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Visualization of force networks in 2D dense granular materials

Jianguo LIU, Qicheng SUN, Feng JIN,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 109-115 doi: 10.1007/s11709-010-0003-8

Abstract: To understand the structure and evolution of force chains, a photoelastic technique was improved forThe interparticle contact force distribution was found a peak around the mean value, a roughly exponentialtail for greater force and a dip toward zero for smaller force.The force chain network around the probe tip was depicted, and the contact angle distribution of particlesin force chains was found to be well aligned in the directions of major principal stress.

Keywords： granular matter     force chain     multiscale modeling    

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Motion/force transmission indices of parallel manipulators

Xinjun LIU, Chao WU, Fugui XIE

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 89-91 doi: 10.1007/s11465-011-0215-1

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Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Frontiers of Medicine 2021, Volume 15, Issue 1,   Pages 43-52 doi: 10.1007/s11684-020-0769-6

Abstract: The principle of atomic force microscopy (AFM) and its three running modes are introduced for the mechanicalThe peak force tapping mode provides the most delicate and desirable virtues to collect high-resolutionimages of morphology and force curves.

Keywords： cellular mechanics     atomic force microscopy     neutrophil extracellular trap     macrophage phagocytosis     pore    

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A Novel Variable Speed Constant Frequency Doubly Fed Salient Pole Synchronous Machine

Ning Yuquan

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 27-31

Abstract:

This paper presents a novel variable speed constant frequency doubly fed salient pole synchronousand construction of variable speed salient pole synchronous machines, especially on variable speed constantIt makes machine to achieve good character of variable speed constant frequency.

Keywords： salient pole synchronous machines     doubly fed variable speed constant frequency     AC excited    

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Non-convex sparse optimization-based impact force identification with limited vibration measurements

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0762-2

Abstract: Impact force identification is important for structure health monitoring especially in applications involvingDifferent from the traditional direct measurement method, the impact force identification technique isAs a typical inverse problem, impact force reconstruction and localization is a challenging task, whichMJX-TeXAtom-ORD">-ADMM is applied to solve the impact forceidentification problem with unknown force locations, which can realize simultaneous impact localization

Keywords： impact force identification     inverse problem     sparse regularization     under-determined condition     alternating    

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Title Author Date Type Operation

Calculation of Bond-length, Bond-energy and Force Constant of Hydrogen Molecule by Classical Mechanics

Chen Jing

Journal Article

Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Journal Article

Calculation of H2+ Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Journal Article

The Negative Electrostatic Spring Effect Analysis and Experimental Validation of Silicon Micromechanical Vibrating zaxis Gyroscope

Xia Dunzhu,Zhou Bailing,Wang Shourong

Journal Article

Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Journal Article

Modeling limit force capacities of high force to volume lead extrusion dampers

Journal Article

Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Journal Article

Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Journal Article

The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Journal Article

Quality control based on electrode displacement and force in resistance spot welding

Chuntao JI, Lipeng DENG

Journal Article

Visualization of force networks in 2D dense granular materials

Jianguo LIU, Qicheng SUN, Feng JIN,

Journal Article

Motion/force transmission indices of parallel manipulators

Xinjun LIU, Chao WU, Fugui XIE

Journal Article

Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Journal Article

A Novel Variable Speed Constant Frequency Doubly Fed Salient Pole Synchronous Machine

Ning Yuquan

Journal Article

Non-convex sparse optimization-based impact force identification with limited vibration measurements

Journal Article