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Ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng Jie shen Jinxing Lu Chuqiang Huang Zhuoyuan Chen Feng Peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan UniversityFoshan 528000GuangdongChina School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006GuangdongChina Guangdong Key Laboratory for Hydrogen Energy Technologies Foshan 528000GuangdongChina

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction (OER)and chlorin ion oxidation reaction (ClOR),glycerol oxidation reaction (GOR) is more thermodynamically and kinetically favorable ***,a Ru doping cobalt phosphide (Ru-CoP_(2)) is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that Ru doping featured in the dynamic reconstruction process from Ru-CoP_(2)to Ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing Ru-CoP_(2)as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm^(-2),which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Glycerol electrooxidation Hydrogen evolution Ru doping Cobalt phosphide Bifunctional electrocatalysts

Magnetism and cryogenic magnetocaloric effect of triangular-lattice LnOF(Ln=Gd,Dy,Ho,and Er) compounds

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Journal of Rare Earths 2025年第1期43卷 98-104,I0004页

作者： Jianjian Gong Lu Tian Lei Zhang Zhaojun Mo Yuanpeng Wang Jun shen School of Rare Earths University of Science and Technology of ChinaHefei230026China Key Laboratory of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou34119China Department of Energy and Power Engineering School of Mechanical EngineeringBeijing Institute of TechnologyBeijing00081China

Frustrated lanthanide oxides with dense magnetic lattice and suppressed ordering temperature have potential applications in cryogenic magnetic ***,the crystal structure,magnetic properties,magnetic phase transition(MPT)together with magnetocaloric effect(MCE)of LnOF(Ln=Gd,Dy,Ho,and Er)compounds were *** study shows that these compounds crystallize in the centrosymmetric space group R3m with an ideal triangular *** long-range magnetic ordering is observed above 2 K for LnOF(Ln=Gd,Ho,and Er).However,DyOF compound undergoes an MPT from paramagnetic(PM)to antiferromagnetic(AFM)at the Neel temperature(TN≈4 K).Considerable reversible MCE is observed in these triangular-lattice *** the magnetic field change(μ0ΔH)of 0-2 T,the maximum values of magnetic entropy change(-ΔSMmax)of them are 6.1,9.4,12.7,and 14.1 J/(kg·K),***,the value of ErOF with Ising-like spin is 2.3 times that of GdOF,which provides an approach for exploring magnetic refrigerants with excellent low-field cryogenic magnetocaloric effect.

关键词： Geometric magnetic frustration Magnetic phase transition Magnetocaloric effect Magnetic refrigeration Rare earths

Experimental study on the buckling of composite cylinders with reinforced circular hole under hydrostatic pressure

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Defence Technology(防务技术) 2025年第2期44卷 231-247页

作者： Zhun Li Xinhu Zhang Kechun shen Jing Liu Jian Zhang Guang Pan School of Marine Science and Technology Northwestern Polytechnical UniversityXi'an 710072China Northwest Institute of Mechanical and Electrical Engineering Xianyang 712099China Jiangsu University of Science and Technology Zhenjiang 212003China

In this paper,a type of reinforcing structure for composite shell with single and through hole is *** experimental tests for the composite shells without hole,with single hole and reinforced structure,with through hole and reinforced structure subjected to hydrostatic pressure were carried out by the designed experimental test *** mechanical responses of the composite shells under hydrostatic pressure are obtained by the high-speed camera and strain *** results show that the entire deformation process of the shell can be divided into three:uniform compression,"buckling mode formation"and ***"buckling mode formation"process is captured and reported for the first *** the composite shell with single hole,the proposed reinforcing structure has a significant reinforcement effect on the shell and the buckling capacity of the shell is not weaker than the complete composite *** the composite shell with through hole,sealing effect can be achieved by the proposed reinforcing structure,but the buckling capacity of the shell after reinforcement can only reach 77%of the original buckling capacity.

关键词： Composite cylindrical shell Circular hole Reinforcing structure Buckling Hydrostatic pressure

Numerical Analysis of Urban-Rail Vehicle/Tunnel Aerodynamic Interaction

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Fluid Dynamics & Materials Processing 2025年第1期21卷 161-178页

作者： Haoran Meng Nianxun Li Xukui shen Hong Zhang Tian Li Beijing Infrastructure Investment Co. Ltd.Beijing100101China Beijing Rail Transit Technology Equipment Group Co. Ltd.Beijing100070China Department of Mechanical Engineering Tsinghua UniversityBeijing100084China State Key Laboratory of Rail Transit Vehicle System Southwest Jiaotong UniversityChengdu610031China

The pressure wave generated by an urban-rail vehicle when passing through a tunnel affects the comfort of passengersand may even cause damage to the train and related tunnel ***,controlling the trainspeed in the tunnel is extremely *** this study,this problem is investigated numerically in the frameworkof the standard k-εtwo-equation turbulence *** particular,an eight-car urban rail train passingthrough a tunnel at different speeds(140,160,180 and 200 km/h)is *** results show that the maximumaerodynamic drag of the head and tail cars is most affected by the running *** pressure at selectedmeasuring points on the windward side of the head car is very high,and the negative pressure at the side windowof the driver’s cab of the tail car is also very *** the head car to the tail car,the pressure at the same heightgradually *** positive pressure peak at the head car and the negative pressure peak at the tail car aregreatly affected by the speed.

关键词： Urban-rail vehicle vehicle speed aerodynamic force surface pressure numerical simulation

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舱壁结构抑制液体晃荡砰击的试验研究

船舶力学 2025年第1期29卷 31-40页

作者：申利敏卫志军陆志妹季顺迎张大勇大连理工大学运载工程与力学学部辽宁大连116024 大连理工大学海岸和近海工程国家重点实验室辽宁大连116024 大连理工大学工业装备结构分析优化与CAE软件全国重点实验室辽宁大连116024 上海市船舶工程重点实验室上海200011 中国船舶及海洋工程设计研究院上海200011 大连理工大学海洋科学与技术学院辽宁盘锦114221

液体晃荡砰击载荷是液化天然气(LNG)运载装备液舱结构设计的关键载荷之一。液体晃荡砰击载荷过大时,会导致液舱结构产生局部破坏,进而导致液舱内液体泄露,甚至船体倾覆。基于前期数值结果,本文设计了梯形体和正方体两种壁面结构,开展了... 详细信息

液体晃荡砰击载荷是液化天然气(LNG)运载装备液舱结构设计的关键载荷之一。液体晃荡砰击载荷过大时,会导致液舱结构产生局部破坏,进而导致液舱内液体泄露,甚至船体倾覆。基于前期数值结果,本文设计了梯形体和正方体两种壁面结构,开展了不同壁面结构下的液体晃荡砰击试验。针对自由液面演化过程以及液体晃荡砰击载荷分布特性,结合统计分析方法,定性和定量地分析了壁面结构对液体晃荡砰击的抑制效果。研究结果表明,壁面结构的存在改变了液体晃荡砰击过程中的流场分布,使砰击由液体直接砰击改变为裹气液体的间接砰击。裹气液体晃荡砰击过程中产生了大量气液混合物和气泡,从而有效地降低了砰击载荷,并且正方体结构抑制砰击载荷的效果优于梯形体结构。

关键词：液体晃荡防晃结构砰击载荷试验研究统计分析

Fengyun Radiation Services for Solar Energy Meteorology:Status and Perspective

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Advances in Atmospheric Sciences 2025年第2期 252-260页

作者： xiang'ao XIA Dazhi YANG Yanbo shen Institute of Atmospheric Physics Chinese Academy of Sciences University of Chinese Academy of Sciences School of Electrical Engineering and Automation Harbin Institute of Technology Public Meteorological Service Centre China Meteorological Administration

Satellite remote sensing is essential for solar energy meteorology. The 14-channel Advanced Geostationary Radiation Imager of the Fengyun-4 series of satellites performs a full-disc scan over greater China every 15 min, providing highgranularity information that allows the retrieval of cloud properties, aerosol optical depth, and precipitable water vapor content, which can facilitate the acquisition of surface solar irradiance components through physical methods. Machinelearning methods have also shown potential in providing accurate end-to-end surface solar radiation retrievals. Albeit the physical principles of irradiance retrieval and machine-learning algorithms are fairly well known, the public service concerning disseminating the irradiance product to the energy and power industry still lacks robustness and consistency. In this perspective article, the status quo of Fengyun-4 irradiance products is first reviewed. Then, from the perspective of solar resource assessment and forecasting, three fundamental characteristics of the kind of irradiance products that are most serviceable to the solar energy sector are identified, namely, coverage, timeliness, and accessibility. Finally, an outlook on the new-generation Fengyun radiation service is put forward, and the prospective scientific and practical challenges are elaborated.

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Enhanced recovery after surgery-based evidence-based care plus ice stimulation for thirst management in convalescent patients following digestive surgery under general anesthesia

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World Journal of Gastrointestinal Surgery 2025年第3期17卷 198-205页

作者： Li Chen Bi-Xi Li Qiu-zhi Gan Rui-Ge Guo Xing Chen Xi shen Yan Chen Department of Anesthesiology Hankou Medical DistrictCentral War Zone General HospitalWuhan 430010Hubei ProvinceChina Department of Anesthesiology Central Theater General HospitalWuhan 430010Hubei ProvinceChina Department of Anesthesiology Central War Zone General HospitalWuhan 430010Hubei ProvinceChina

BACKGROUND Thirst management in convalescent patients recovering from a digestive surgery performed under general anesthesia requires attention.A simple,practical,and safe method can effectively relieve thirst symptoms in such *** To evaluate the enhanced recovery after surgery(ERAS)-based evidence-based care(EBC)plus ice stimulation therapy for thirst management of convalescent patients following digestive surgery performed under general *** A total of 191 patients convalescing after digestive surgery performed under general anesthesia between March 2020 and February 2023 and experiencing thirst were *** total,89 patients and 102 patients in the control and research groups received routine care and ERAS-based EBC plus ice stimulation therapy,*** following data were comparatively analyzed:(1)Thirst degree(thirst intensity numerical rating scale)and thirst distress(TD)degree(TD scale);(2)Oral mucosal wetness;(3)Unstimulated whole salivary flow rate(UWSFR);(4)Adverse reactions(palpitation,fatigue,chapped lips,and nausea and vomiting);and(5)Nursing *** After nursing,thirst degree and distress were statistically lower in the research group than in the control ***,compared with the control group,the research group exhibited a lower degree of oral mucosal wetness,higher UWSFR,fewer adverse reactions,and more total nursing *** ERAS-based EBC plus ice stimulation therapy can effectively alleviate thirst in convalescent patients recovering from a digestive surgery performed under general *** can alleviate xerostomia symptoms,reduce adverse reactions,and improve patient comfort.

关键词： Enhanced recovery after surgery Evidence-based care Ice stimulation therapy Convalescent patients Digestive surgery General anesthesia Thirst

Electrochemical removal of nitrate in high-salt wastewater with low-cost iron electrode modified by phosphate

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Journal of Environmental Sciences 2025年第2期148卷 38-45页

作者： Fengjiao Quan Guangming Zhan Pengfei Xu Xiaolan Chen Wenjuan shen Falong Jia Yun He Jianfen Li College of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023China College of Chemistry Central China Normal UniversityWuhan 430079China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Nitrate(NO3-)is a widespread pollutant in high-salt wastewater and causes serious harm to human *** electrochemical removal of nitrate has been demonstrated to be a promising treatment method,the development of low-cost electro-catalysts is still *** this work,a phosphate modified iron(P-Fe)cathode was prepared for electrochemical removal of nitrate in high-salt *** phosphate modification greatly improved the activity of iron,and the removal rate of nitrate on P-Fe was three times higher than that on Fe *** experiments and density functional theory(DFT)calculations demonstrated that the modification of phosphoric acid improved the stability and the activity of the zero-valent iron electrode effectively for *** nitrate was firstly electrochemically reduced to ammonium,and then reacted with the anodic generated hypochlorite to *** this study,a strategy was developed to improve the activity and stability of metal electrode for NO_(3)^(-)removal,which opened up a new field for the efficient reduction of NO3-removal by metal electrode materials.

关键词： Nitrate removal High-salt wastewater Electrocatalysis Phosphate modified Iron

Dual-role regulator of a novel miR-3040 in photoperiod-mediated wing dimorphism and wing development in green peach aphid

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Insect Science 2025年第1期32卷 80-94页

作者： Yun-Hui Zhang Xin Qian Xin Zong Shi-Heng An Shuo Yan Jie shen College of Plant Protection Henan Agricultural UniversityZhengzhouChina Department of Plant Biosecurity College of Plant ProtectionChina Agricultural UniversityBeijingChina

Wing dimorphism is regarded as an important phenotypic plasticity involved in the migration and reproduction of ***,the signal transduction and regulatory mechanism of wing dimorphism in aphids are still ***,the optimal environmental conditions were first explored for inducing winged offspring of green peach aphid,and the short photoperiod was the most important environmental cue to regulate wing *** to 16 L:8 D photoperiod,the proportion of winged offspring increased to 90%under 8 L:16 D ***,5 differentially expressed microRNAs(miRNAs)in aphids treated with long and short photoperiods were identified using small RNA sequencing,and a novel miR-3040 was identified as a vital miRNA involved in photoperiod-mediated wing *** specifically,the inhibition of miR-3040 expression could reduce the proportion of winged offspring induced by short photoperiod,whereas its activation increased the proportion of winged offspring under long ***,the expression level of miR-3040 in winged aphids was about 2.5 times that of wingless aphids,and the activation or inhibition of miR-3040 expression could cause wing deformity,revealing the dual-role regulator of miR-3040 in wing dimorphism and wing *** summary,the current study identified the key environmental cue for wing dimorphism in green peach aphid,and the first to demonstrate the dual-role regulator of miR-3040 in photoperiod-mediated wing dimorphism and wing development.

关键词： miR-3040 Myzus persicae photoperiod wing development wing dimorphism