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Overview of in-situ oxygen production technologies for lunar resources

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： youpeng Xu Sheng Pang Liangwei Cong Guoyu Qian Dong Wang Laishi Li Yusheng Wu zhi Wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

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Intravitreal dexamethasone implant — a new treatment for idiopathic posterior scleritis: A case report

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World Journal of Clinical Cases 2021年第2期9卷 422-428页

作者： yong-Ji Zhao Yu-Ling Zou Ying Lu Meng-Jun Tu zhi-Peng you Department of Opthalmology The Second Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Ophthalmology The Eye HospitalWenzhou Medical UniversityWenzhou 330006Zhejiang ProvinceChina

BACKGROUND Posterior scleritis is one of the most easily missed and misdiagnosed diseases in *** this case we treated a patient with intravitreal dexamethasone implant that has not been extensively studied *** SUMMARY A 40-year-old female patient who had anxiety,palpitation,and insomnia presented with eye pain and decreased vision in the left *** eye examination indicated that her visual acuity(VA)was 40/*** left eye presented conjunctival edema,mild exophthalmos,clear cornea,KP(-),and clear aqueous *** the fundus,there was a cinerous retinal *** showed“T-sign”and no systemic association was detected in laboratory *** month after injection of dexamethasone implant,the patient exhibited VA of 20/20,fundus serous retinal detachment disappeared,and intraocular pressure of both eyes was at the normal *** Intravitreal injection of dexamethasone implant may be a safe and effective treatment for patients with idiopathic posterior scleritis.

关键词： Intravitreal dexamethasone implant Posterior scleritis Treatment Case report Ophthalmology

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A generalization of Kempe’s linkages

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第7期8卷 1084-1090页

作者： MAO De-can LUO Yao-zhi you Zhong Space Structure Research Center Zhejiang University Hangzhou 310027 China Department of Engineering Science University of Oxford Oxford OX1 3PJ UK

A new, general type of planar linkages is presented, which extends the classical linkages developed by Kempe consisting of two single-looped kinematic chains of linkages, interconnected by revolute hinges. Together with a locking device, these new linkages have only one degree of freedom (DOF), which makes them ideal for serving as deployable structures for different purposes. Here, we start with a fresh matrix method of analysis for double-loop planar linkages, using 2D transformation matrices and a new symbolic notation. Further inspection for one case of Kempe’s linkages is provided. Basing on the inspection, by means of some novel algebraic and geometric techniques, one particularly fascinating solution was found. Physical models were built to show that the derivation in this paper is valid and the new mechanisms are correct.

关键词： Double-loop Kempe's linkages Transformation matrices Deployable structures

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Numerical investigation on the flow and power of small-sized multi-bladed straight Darrieus wind turbine

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第9期8卷 1414-1421页

作者： JIANG zhi-chao DOI Yasuaki ZHANG Shu-you College of Mechanical and Energy Engineering Zhejiang University Hangzhou 310027 China Hangshen Holding Group Co.. Ltd Hangzhou 311234 China Graduate School of Engineering. Hiroshima UniversiO＇ Higashi-hiroshima Hiroshima 739-852 7 Japan

Straight Darrieus wind turbine has attractive characteristics such as the ability to accept wind from random direction and easy installation and maintenance. But its aerodynamic performance is very complicated,especially for the existence of dynamic stall. How to get better aerodynamic performance arouses lots of interests in the design procedure of a straight Darrieus wind turbine. In this paper,mainly the effects of number of blades and tip speed ratio are discussed. Based on the numerical investigation,an assumed asymmetric straight Darrieus wind turbine is proposed to improve the averaged power coefficient. As to the numerical method,the flow around the turbine is simulated by solving the 2D unsteady Navier-Stokes equation combined with continuous equation. The time marching method on a body-fitted coordinate system based on MAC (Marker-and-Cell) method is used. O-type grid is generated for the whole calculation domain. The characteristics of tangential and normal force are discussed related with dynamic stall of the blade. Averaged power coefficient per period of rotating is calculated to evaluate the eligibility of the turbine.

关键词： Small-sized Straight Darrieus wind turbine Multi-bladed Power coefficient

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Sensitivity Analysis of the Effect of Speed and Inclination Angle on Water-Entry Slamming Pressure of the Bow

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China Ocean Engineering 2020年第3期34卷 432-440页

作者： ZHANG Jian you Yun YAO zhi HUO Fa-li Jiangsu University of Science and Technology Zhenjiang 212003China Shanghai Merchant Ship Design&Research Institute Shanghai 201203China

In this paper,a method about the water-entry slamming of a two-dimensional(2D)bow structure has been proposed based on the experimental and simulation *** to this method,the sensitivity analysis has been carried out about the effect of speed and inclination angle on the slamming pressure of the ***,a 2D ship bow experimental model was performed to obtain the slamming pressure distribution at different measuring points under different ***,numerical simulation for the water-entry slamming of this experimental model was conducted to obtain the pressure distribution on the experimental model under different working ***,the experimental results were compared with the numerical simulation results to evaluate the effect of speed and inclination angle on the slamming pressure of the *** results show that the slamming pressure is more sensitive to speed variation within the low-speed *** effect of inclination angle on the slamming pressure is more obvious in the small angle *** the inclination angle is larger than 45°,the effect is limited.

关键词： model test numerical simulation water-entry slamming rigid body

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Miniaturized power detection module operating in millimeter wave band

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Journal of Electronic Science and Technology 2024年第2期22卷 69-76页

作者： Xiang Zhou zhi-yong Zhong School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China

The miniaturized broadband detection module can be embedded into the microwave application system such as the front end of the transmitter to detect the power or other parameters in real *** is highly prospective in military and scientific *** this paper,a broadband power detection module operating at 26.5 GHz-40.0 GHz is designed by using low-barrier Schottky diode as the detector and a comparator for threshold *** module can dynamically detect the power range between-10 dBm and 10 dBm with the detection accuracy of 0.1 ***,the temperature compensation circuit is also applied to improve the measurement *** a result,the resulted error low to±1 dB in the temperature range of -55℃ to +85℃ is *** designed module is encapsulated by a Kovar alloy with a small volume of 9 mm×6 mm×3 *** endows the designed module the advantages of small size,easy integration,and low cost,and even it is applicable to high-reliability environments such as satellites.

关键词： Diode Miniaturization Power detection Temperature compensation

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NUMERICAL STUDY OF NON-AQUEOUS PHASE LIQUID TRANSPORT IN A SINGLE FILLED FRACTURE BY LATTICE BOLTZMANN METHOD

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Journal of Hydrodynamics 2012年第1期24卷 130-137页

作者： DOU zhi ZHOU zhi-fang HUANG yong WU Wei School of Earth Science and Engineering Hohai UniversityNanjing 210098China School of Materials Science and Engineering Southeast UniversityNanjing 211189China

In this article,the Non-Aqueous Phase Liquid（NAPL）transport in the single filled fracture was studied with the Shan-Chen multi-component multiphase Lattice Boltzmann Method（LBM）with special consideration of wettability *** the help of the model,the contact angle of the non-wetting phase and wetting phase interface at a solid wall could be *** considering a set of appropriate boundary conditions,the fractured conductivity was investigated in condition that the NAPL blocks the channels in the single filled *** order to study the wettability effects on the NAPL transport,a constant driving force was introduced in the Shan-Chen multi-component multiphase *** regimes with different wettabilities were *** results show that the LBM is a very instrumental method for simulating and studying the immiscible multiphase flow problems in single filled fracture.

关键词： single filled fracture Lattice Boltzmann Method(LBM) Non-Aqueous Phase Liquid(NAPL)transport wettability contact angle immiscible two-phase flow

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Hydraulic experiment on mushroom head in bottom-blown smelting furnace

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Journal of Iron and Steel Research International 2017年第5期24卷 490-494页

作者： Fu-yong Su zhi Wen School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing 100083 China

There are many bottom-blown smelting furnaces in metallurgical industry. When oxygen or air sprays from the jet nozzle into the bottom of the furnace, the melting phase will be frozen and a hemispherical porous zone with a mushroom head shape will be formed around the nozzle. The mushroom head can pro- tect the jet nozzle and mitigate the liquid spray on the surface of melt. In order to analyze the formation process of a mushroom head in the bottom-blown smelting furnaces, a hydraulic experiment system was designed and the formation of the mushroom head was investigated by hydraulic experiment. The hydrau- lic experiment results show that the formation process is mainly divided into generating crushing genera- ting process and stable mushroom head generation process. The formation of stable mushroom head re- quires certain thermodynamic condition and water splash is more intense without a mushroom head than with a mushroom head. The size, porosity and diameter of the mushroom head are affected by the flow rate, temperature and heat capacity of the bottom-blowing gas and the temperature of the superheat and the physical parameters of the melt.

关键词： Bottom-blown smelting furnace Mushroom head Hydraulic experiment Thermal equilibrium Similarity criterion

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Motion Coordination for a Class of Multi-Agents via Networked Predictive Control

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Journal of Systems Science & Complexity 2020年第3期33卷 622-639页

作者： ZHANG Tian-yong you Bo LIU Guo-Ping School of Automation Harbin University of Science and TechnologyHarbin 150080China School of Engineering University of South WalesPontypriddCF371DLUK The CTGT Center School of AstronauticsHarbin Institute of TechnologyHarbin 150001China

The motion coordination formation control problem for a class of non-linear system is considered in this paper,where networked induced time-delays exist in the feedback channel of each agent and in communication channels between *** a foundation work,a coordination formation controller in discrete-time domain that without time-delay is provided *** on the above results,a motion coordination predictive formation control strategy as well as its detail implementation processes are proposed to actively compensate the *** analysis and simulation results are provided to demonstrate the feasibility and effectiveness of the proposed predictive strategy.

关键词： Formation control motion coordination networked predictive control time-delays wheeled mobile robots

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Electrode/Electrolyte Optimization-Induced Double-Layered Architecture for High-Performance Aqueous Zinc-(Dual) Halogen Batteries

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NANO-MICRO LETTERS 2025年第1期17卷 1-17页

作者： Zhou, Chengwang Ding, Zhezheng Ying, Shengzhe Jiang, Hao Wang, Yan Fang, Timing Zhang, you Sun, Bing Tang, Xiao Liu, Xiaomin Qingdao Univ Sch Text & Clothing Sch Chem & Chem Engn Qingdao 266071 Shandong Peoples R China Univ Technol Sydney Fac Sci Ctr Clean Energy Technol Sch Math & Phys Sci Ultimo NSW 2007 Australia Henan Normal Univ Sch Chem & Chem Engn Xinxiang 453007 Henan Peoples R China

A double-layered protective film based on zinc-based coordination compound and ZnF2-rich solid electrolyte interphase layer has been successfully fabricated on the zinc metal anode via electrode/electrolyte synergistic *** double-layered architecture can effectively modulate Zn2+ flux and suppress the zinc dendrite growth, thus facilitating the uniform zinc *** as-developed zinc-(dual) halogen batteries based on double-layered protective film can present high areal capacity and satisfactory cycling stability. Aqueous zinc-halogen batteries are promising candidates for large-scale energy storage due to their abundant resources, intrinsic safety, and high theoretical capacity. Nevertheless, the uncontrollable zinc dendrite growth and spontaneous shuttle effect of active species have prohibited their practical implementation. Herein, a double-layered protective film based on zinc-ethylenediamine tetramethylene phosphonic acid (ZEA) artificial film and ZnF2-rich solid electrolyte interphase (SEI) layer has been successfully fabricated on the zinc metal anode via electrode/electrolyte synergistic optimization. The ZEA-based artificial film shows strong affinity for the ZnF2-rich SEI layer, therefore effectively suppressing the SEI breakage and facilitating the construction of double-layered protective film on the zinc metal anode. Such double-layered architecture not only modulates Zn2+ flux and suppresses the zinc dendrite growth, but also blocks the direct contact between the metal anode and electrolyte, thus mitigating the corrosion from the active species. When employing optimized metal anodes and electrolytes, the as-developed zinc-(dual) halogen batteries present high areal capacity and satisfactory cycling stability. This work provides a new avenue for developing aqueous zinc-(dual) halogen batteries.

关键词： Zn metal anodes Double-layered protective film Electrode/electrolyte optimization Aqueous zinc-(dual) halogen batteries

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