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The Round-metal-resonator CO2 Laser with Spiral Flow

Li Zaiguang,Gong Wei

Strategic Study of CAE 2001, Volume 3, Issue 1,   Pages 58-61

Abstract: Its round resonator consists of a number of equally-spaced and coaxially-mounted metal cavity units.The electrode structure, metal wall action on the active medium cooling, and the gain distribution have

Keywords： CO2 laser     round-metal-resonator     spiral flow     beam quality    

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Experimental study on slender buckling-restrained knee braces with round steel bar cores

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 99-121 doi: 10.1007/s11709-022-0875-4

Abstract: This study aimed to investigate a novel slender buckling-restrained knee brace damper (BRKB) for welded and weld-free steel framing systems. The proposed BRKB adopts steel bar cores connected by a central coupler and restrained by tube buckling restrainers with a cover tube supporter. The advantages of the proposed damper include easy assembly compared to conventional buckling restrained braces, and high architectural flexibility for the retrofitting of large-span weld-free or welded steel moment-resisting systems. Specifically, by increasing the number of contraction allowances, undesirable failure mechanisms that are global instability and local buckling of the restrainer ends can be effectively suppressed because the more uniform plastic deformation of the core bar can be achieved longitudinally. In this study, displacement-controlled compression and cyclic loading tests were carried out to investigate the deformation capacities of the proposed BRKBs. Structural performance metrics associated with both loading tests, such as strength capacities, strains at the cover tubes and buckling restrainers, and hysteretic behaviors of the proposed damper under cyclic loads, were measured and discussed. Test results revealed that the geometrical characteristics of the cover tubes and adopted contraction allowances at the dampers play essential roles in their load-bearing capacities.

Keywords： weld-free beam-to-column connections     moment-resisting frame     cyclic and compression loading tests     buckling-restrained knee brace     cover tube    

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An Effective Method for Improving Silicon Micro-resonator System Performance

Xia Dunzhu,Wang Shourong,Zhou Bailing

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 71-74

Abstract:

The working principle of silicon micro-resonator system was firstly introduced.An intelligence silicon micro-resonator system design and realization was presented in focus.

Keywords： direct digital synthesis (DDS)     silicon micro-resonator     AD9954     digital signal processing    

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A ternary mechanism for the facilitated transfer of metal ions onto metal–organic frameworks: implications

Frontiers of Chemical Science and Engineering   Pages 1632-1642 doi: 10.1007/s11705-022-2187-6

Abstract: Although metal–organic frameworks offer a new platform for developing versatile sorption materials, yetHerein, a ternary mechanism for U(VI) uptake in metal–organic frameworks was reported.energy-dispersive X-ray spectroscopy and zeta potential measurement reveal that U(VI) uptake in the three metal–organicThe present study suggests that changing metal center of metal–organic frameworks and sorption conditionsalters sorption mechanism, which helps to construct effective metal–organic frameworks-based sorbents

Keywords： U(VI)     metal–organic frameworks     adsorption mechanism     metal node    

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Sustainability of metal recovery from E-waste

Biswajit Debnath, Ranjana Chowdhury, Sadhan Kumar Ghosh

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1044-9

Abstract:

Metal recovery techniques from electronic waste reported in literature

Metal recovery processes followed in Industries

Sustainability analysis of metal recovery processes

Keywords： E-waste     Metal recovery     Metal Recovery from E-waste (MREW)     Sustainability    

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Optimizing iodine capture performance by metal–organic framework containing with bipyridine units

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 395-403 doi: 10.1007/s11705-022-2218-3

Abstract: The adsorptive capture of radioactive iodine by metal–organic frameworks (MOFs) has risen to prominence

Keywords： metal–organic framework     iodine     adsorption     nuclear waste     environmental remediation    

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Selective capture and separation of xenon and krypton using metal organic frameworks: a review

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1895-1912 doi: 10.1007/s11705-023-2355-3

Abstract: Metal organic frameworks as hotspot porous materials for gases uptake and separation are considered toIn this review, we comprehensively summarized recent researches on metal organic frameworks for selectiveaspects of different optimal design strategies, including optimal pore/cage size and geometry, open metal

Keywords： metal organic frameworks     xenon     krypton     selective separation     used nuclear fuel    

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Liquid metal thermal hydraulics R&D at European scale: achievements and prospects

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 842-853 doi: 10.1007/s11708-021-0743-2

Abstract: future nuclear carbon-free energy production is attributed to fast reactors, mostly employing a liquid metalcollaborative projects sponsored by the European Commission in the past 20 years in the fields of liquid-metal

Keywords： liquid metal     thermal hydraulics     Europe    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: anode materials with an ultrahigh specific capacity and extremely low electrode potential, lithium metalCoulombic efficiency and potential safety risks severely hinder the practical applications of lithium metalprovide an overview of the recent developments of localized high-concentration electrolytes in lithium metalvoltage window of electrolytes, enhance safety, and render low-temperature operation for robust lithium metalhigh-concentration electrolytes are outlined, which can promisingly render the practical applications of lithium metal

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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Analysis of resonant coupling coil configurations of EV wireless charging system: a simulation study

M. LU, A. JUNUSSOV, M. BAGHERI

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 152-165 doi: 10.1007/s11708-019-0615-1

Abstract: Nowadays, internal combustion engine vehicles are considered as one of the major contributors to air pollution. To make transportation more environmentally friendly, plug-in electric vehicles (PEVs) have been proposed. However, with an increase in the number of PEVs, the drawbacks associated with the cost and size, as well as charging cables of batteries have arisen. To address these challenges, a novel technology named wireless charging system has been recently recommended. This technology rapidly evolves and becomes very attractive for charging operations of electric vehicles. Currently, wireless charging systems offer highly efficient power transfer over the distances ranging from several millimeters to several hundred millimeters. This paper is focused on analyzing electromagnetically coupled resonant wireless technique used for the charging of EVs. The resonant wireless charging system for EVs is modeled, simulated, and then examined by changing different key parameters to evaluate how transfer distance, load, and coil’s geometry, precisely number of coil’s turns, coil’s shape, and inter-turn distance, influence the efficiency of the charging process. The simulation results are analyzed and critical dimensions are discussed. It is revealed that a proper choice of the dimensions, inter-turn distance, and transfer distance of the coil can result in a significant improvement in charging efficiency. Furthermore, the influence of the transfer distance, frequency, load, as well as the number of the turns of the coil on the performance of wireless charging system is the main focus of this paper.

Keywords： electromagnetically coupled resonator     near-field power transfer     wireless power transfer (WPT)    

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Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 959-973 doi: 10.1007/s11708-021-0753-0

Abstract: In particular, the molten metal spreading behavior is one of the vital phenomena in nuclear severe accidentsIn this study, the fundamental molten metal spreading experiments were performed with different outletThe simulation results reveal the detailed solidification procedure during the molten metal spreading

Keywords： molten metal spreading     solidification     particle method     severe accident     fuel debris     decommissioning    

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Visible light responsive photocatalysts developed by substitution with metal cations aiming at artificial

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 568-576 doi: 10.1007/s11708-021-0774-8

Abstract: mini-review introduces the recent work on visible-light-driven photocatalysts developed by substitution with metal

Keywords： visible light responsive photocatalyst     water splitting     artificial photosynthesis: metal ion substitution    

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Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Frontiers in Energy   Pages 796-810 doi: 10.1007/s11708-023-0877-5

Abstract: Liquid metal-based microchannel heat sinks (MCHSs) suffer from the low heat capacity of coolant, resultingThe heat conduction of liquid metal in Z direction and the heat convection between the top surfaceof fins and the liquid metal could reduce the total thermal resistance (Rt).

Keywords： liquid metal cooling     heat sink     expanded microchannel     flow and thermal modeling    

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Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 535-567 doi: 10.1007/s11708-017-0463-9

Abstract: Recently, the room temperature liquid metal (RTLM) mainly composed of gallium-based alloys has causedpaper is dedicated to present an overview on the roles and mechanisms of surface tension of liquid metal

Keywords： surface tension     liquid metal     soft machine     printed electronics     electrowetting     self-actuation    

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Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 81-104 doi: 10.1007/s11708-019-0653-8

Abstract: The room temperature liquid metal (LM) is recently emerging as a new class of versatile materials withlike components, pressure, size and supercooling that may be critical for melting processes of liquid metal

Keywords： melting point     liquid metal     crystal     thermodynamics     molecular dynamics    

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Title Author Date Type Operation

The Round-metal-resonator CO2 Laser with Spiral Flow

Li Zaiguang,Gong Wei

Journal Article

Experimental study on slender buckling-restrained knee braces with round steel bar cores

Journal Article

An Effective Method for Improving Silicon Micro-resonator System Performance

Xia Dunzhu,Wang Shourong,Zhou Bailing

Journal Article

A ternary mechanism for the facilitated transfer of metal ions onto metal–organic frameworks: implications

Journal Article

Sustainability of metal recovery from E-waste

Biswajit Debnath, Ranjana Chowdhury, Sadhan Kumar Ghosh

Journal Article

Optimizing iodine capture performance by metal–organic framework containing with bipyridine units

Journal Article

Selective capture and separation of xenon and krypton using metal organic frameworks: a review

Journal Article

Liquid metal thermal hydraulics R&D at European scale: achievements and prospects

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

Analysis of resonant coupling coil configurations of EV wireless charging system: a simulation study

M. LU, A. JUNUSSOV, M. BAGHERI

Journal Article

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Journal Article

Visible light responsive photocatalysts developed by substitution with metal cations aiming at artificial

Journal Article

Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Journal Article

Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Journal Article

Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Journal Article