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Composite laminar membranes for electricity generation from water evaporation

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Nano Research 2024年第1期17卷 307-311页

作者： Xiao Wang Gang Yuan Han Zhou Yu Jiang Shuo Wang Jiaojiao Ma Chongyang Yang sheng hu State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361005China

Harvesting clean energy from water evaporation has been extensively investigated due to its sustainability.To achieve high efficiency,energy conversion materials should contain multiple features which are difficult to be simultaneously obtained from single-component materials.Here we use composite laminar membranes assembled by nanosheets of graphene oxide and mica,and find a sustained power density induced by water evaporation that is two orders of magnitude larger than that from membranes made by either of the components.The power output is attributed to selective proton transport driven by water evaporation through the interlayer nanochannels in the membranes.This process relies on the synergistic effects from negatively charged and hydrophilic mica surfaces that are important for proton selectivity and water transport,and the tunable electrical conductivity of graphene oxide that provides optimized internal resistance.The demonstrated composite membranes offer a strategy of enhancing power generation by combining the advantages from each of their components.

关键词： graphene oxide mica water evaporation electrical double layer surface charge ion selectivity

Comparative Analysis of Noise Margin between Pure SET-SET and Hybrid SET-PMOS Inverters

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Chinese Journal of Electronics 2024年

作者： Fan ZHANG Yi LIU Yibo WANG Minghu WU sheng hu Youli DONG hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of Technology School of Electrical and Electronic Engineering Hubei University of Technology

Single-electron transistor（SET） is considered as one of the promising candidates for future electronic devices due to its advantages of low power consumption and high integration. The comparative analysis of SETbased inverters, especially the noise margin, is carried out. Pure SET-SET and hybrid SET with p type metal oxide semiconductor（SET-PMOS） inverters are designed for investigation. The effects of SET supply voltage, junction resistance and junction capacitance on noise tolerance and power consumption of inverters are studied. For hybrid SET-PMOS inverters, the noise margin for a logic high（NMH） is less than 60 mV under various conditions, which may become the bottleneck of its application. For pure SET-SET inverters, both NMH and the noise margin for a logic low（NML） could reach 300 mV at a supply voltage of 0.8 V. The minimum power consumption of pure SETSET and hybrid SET-PMOS inverters is 2.85 nW and 58 nW, respectively. The pure SET-SET inverters have greater noise tolerance and lower power consumption, which is more conducive to large-scale integration. When junction capacitance CJ= 0.0273 aF and junction resistance V, the NMH and NML are not significantly affected by the junction resistance and the noise margin fluctuates at 300mV.

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Cationic ordering transition in oxygen-redox layered oxide cathodes

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Carbon Energy 2024年第1期6卷 197-206页

作者： Xinyan Li Ang Gao Qinghua Zhang Hao Yu Pengxiang Ji Dongdong Xiao Xuefeng Wang Dong Su Xiaohui Rong Xiqian Yu Hong Li Yong-sheng hu Lin Gu Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijingChina Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials School of Materials Science and EngineeringTsinghua UniversityBeijingChina Beijing Advanced Innovation Center for Materials Genome Engineering Huairou DivisionInstitute of PhysicsChinese Academy of SciencesBeijingChina

Understanding the structural origin of the competition between oxygen 2p and transition-metal 3d orbitals in oxygen-redox(OR)layered oxides is eminently desirable for exploring reversible and high-energy-density Li/Na-ion cathodes.Here,we reveal the correlation between cationic ordering transition and OR degradation in ribbon-ordered P3-Na_(0.6)Li_(0.2)Mn_(0.8)O_(2) via in situ structural analysis.Comparing two different voltage windows,the OR capacity can be improved approximately twofold when suppressing the in-plane cationic ordering transition.We find that the intralayer cationic migration is promoted by electrochemical reduction from Mn^(4+)to Jahn–Teller Mn^(3+)and the concomitant NaO_(6) stacking transformation from triangular prisms to octahedra,resulting in the loss of ribbon ordering and electrochemical decay.First-principles calculations reveal that Mn^(4+)/Mn^(3+)charge ordering and alignment of the degenerate eg orbital induce lattice-level collective Jahn–Teller distortion,which favors intralayer Mn-ion migration and thereby accelerates OR degradation.These findings unravel the relationship between in-plane cationic ordering and OR reversibility and highlight the importance of superstructure protection for the rational design of reversible OR-active layered oxide cathodes.

关键词： cationic ordering layered oxide cathodes oxygen redox sodium-ion batteries

Understanding the etiology of mental health problems in postrehabilitation COVID-19 patients:Insights and strategies for effective intervention

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World Journal of Clinical Cases 2024年第23期12卷 5308-5312页

作者： Hai-sheng hu Bao-Qing Sun Guangzhou Respiratory Health Research Institute The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510120Guangdong ProvinceChina Department of Clinical Laboratory The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510120Guangdong ProvinceChina

In this editorial,we comment on an article by Alhammad et al that was published in a recent issue of the World Journal of Clinical Cases(Manuscript No.:91134).We specifically focus on the mental health problems caused by coronavirus disease 2019(COVID-19),their mechanisms,and targeted rehabilitation strategies.Severe acute respiratory syndrome coronavirus 2,via its spike protein,binds to angiotensin-converting enzyme 2 and other receptors prior to infiltrating diverse cells within the central nervous system,including endothelial cells,neurons,astrocytes,and oligodendrocytes,thereby contributing to the development of mental illnesses.Epidemiological data from 2020 underscored the global upsurge in major depressive and anxiety disorders by 27.6%and 25.6%,respectively,during the pandemic.The commented research show that 30%of post-intensive care unit discharge patients with COVID-19 in the Arabic region exhibited Hospital Anxiety and Depression Scale scores that were indicative of anxiety and depression.While acknowledging psychosocial factors,such as grief and loss,it is crucial to recognize the potential neurological impact of the virus through various mechanisms.Accordingly,interventions that encompass dietary measures,health supplements,and traditional Chinese medicine with neuroprotective properties are necessary.This editorial underscores the urgency to implement comprehensive rehabilitation approaches to address the intricate interplay between COVID-19 and mental well-being.

关键词： COVID-19 Mental health Rehabilitation therapy Chronic COVID-19 syndrome Social medicine

ENHANCING RAINFALL-RUNOFF POLLUTION MODELING BY INCORPORATION OF NEGLECTED PHYSICAL PROCESSES

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Frontiers of Agricultural Science and Engineering 2023年第4期10卷 553-565页

作者： Mingjin CHENG Xin LIU Han XIAO Fang WANG Minghao PAN Zengwei YUAN hu sheng State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China Lishui Institute of Ecology and Environment Nanjing UniversityNanjing 211200China

The growing need to mitigate rainfall-runoff pollution,especially first flush,calls for accurate quantification of pollution load and the refined understanding of its spatial-temporal variation.The wash-off model has advantages in modeling rainfall-runoff pollution due to the inclusion of two key physical processes,build-up and wash-off.However,this disregards pollution load from wet precipitation and the relationship between rainfall and runoff,leading to uncertainties in model outputs.This study integrated the Soil Conservation Service curve number(SCS-CN)into the wash-off model and added pollutant load from wet precipitation to enhance the rainfall-runoff pollution modeling.The enhanced wash-off model was validated in a typical rural-residential area.The results showed that the model performed better than the established wash-off model and the commonly-used event mean concentrations method,and identified two different modes of pollution characteristics dominated by land pollution and rainfall pollution,respectively.In addition,the model simulated more accurate pollutant concentrations at high-temporal-resolution.From this,it was found that 12%of the total runoff contained 80%to 95%of the total load for chemical oxygen demand,total N,and total P,whereas it contained only 15%of the total load for NH4+-N.The enhanced model can provide deeper insights into non-point pollution mitigation.

关键词： Erhai Lake field experiment non-point source pollutionn load rainfall runoff wash-off model

集装箱班轮公司与客户长期运输合同定价的博弈模型

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运筹与管理 2024年第5期33卷 105-111页

作者：付蔷胡生吴迪上海海事大学交通运输学院上海201306 大连海事大学交通运输工程学院辽宁大连116026

运用鲁宾斯坦森轮流出价思想,建立了承运人和托运人关于集装箱班轮公司长期合同运价的博弈模型,模拟承托双方的谈判过程,研究了存在可信欺骗情况下的承托双方出价政策,讨论了在不同航运市场存在虚假报价情况下承托双方在博弈中的地位。... 详细信息

运用鲁宾斯坦森轮流出价思想,建立了承运人和托运人关于集装箱班轮公司长期合同运价的博弈模型,模拟承托双方的谈判过程,研究了存在可信欺骗情况下的承托双方出价政策,讨论了在不同航运市场存在虚假报价情况下承托双方在博弈中的地位。分析结果表明:在航运市场运力过剩时,托运人在运价谈判中占主动地位,承运人第一阶段出价存在不确定性,若托运人理性协商,成交结果取决于运价的期望值及贴现率,若托运人非理性压价,而承运人未意识到时,报价走低,谈判结束,否则第一阶段博弈失效,进入第二阶段;当航运市场运力不足时,托运人在运价谈判中据被动地位,只要承运人的出价低于其承受底线值,便会接受报价。通过对模型求解,发现双方最终的博弈结构与航运市场环境、双方对未来市场的预期值、贴现因子以及出价政策有关。最后给出博弈双方在不同航运市场情景下的最优出价策略。

关键词：集装箱班轮运输运价博弈模型

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论宋代的妒妇

河南师范大学学报（哲学社会科学版） 2024年第3期51卷 136-143页

作者：李建霞胡胜辽宁大学文学院辽宁沈阳110000

宋人对妒妇现象特别重视,相关记载不绝于书。按照发泄嫉妒情感的方式的不同,宋代妒妇可分为悍妒型、狡妒型、自虐型三种类型。从情感、家庭和社会稳定的角度,宋人对妒妇现象多持批评态度。宋代妒妇产生的原因众多,礼制和法律对妻、妾、... 详细信息

宋人对妒妇现象特别重视,相关记载不绝于书。按照发泄嫉妒情感的方式的不同,宋代妒妇可分为悍妒型、狡妒型、自虐型三种类型。从情感、家庭和社会稳定的角度,宋人对妒妇现象多持批评态度。宋代妒妇产生的原因众多,礼制和法律对妻、妾、婢判然有别的地位规定,宋代社会对“齐家”的重视,婚姻不尚阀阅、以财产论婚姻以及士大夫以离婚为耻,都助长了妇妒之风。宋代妒妇现象的出现,既是不平等婚姻制度的产物,也是女性主体意识畸形觉醒的体现。宋人止妒的失败证明了不推翻旧有的婚姻制度,任何措施都不能解决妒妇问题。

关键词：宋代妒妇士大夫

Research on swarm intelligence optimization algorithm

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The Journal of China Universities of Posts and Telecommunications 2020年第3期27卷 1-20,30页

作者： Fei Wei Liu Cong hu sheng hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of TechnologyWuhan 430068China hubei Collaborative Innovation Center for High-Efficiency Utilization of Solar Energy Hubei University of Technologywuhan 430068China Wuhan hua'an Science and Technology Co. Ltd.Postdoctoral WorkstationWuhan 430068.China

The bionics-based swarm intelligence optimization algorithm is a typical natural heuristic algorithm whose goal is to find the global optimal solution of the optimization problem.It simulates the group behavior of various animals and uses the information exchange and cooperation between individuals to achieve optimal goals through simple and effective interaction with experienced and intelligent individuals.This paper first introduces the principles of various swarm intelligent optimization algorithms.Then,the typical application of these swarm intelligence optimization algorithms in various fields is listed.After that,the advantages and defects of all swarm intelligence optimization algorithms are summarized.Next,the improvement strategies of various swarm intelligence optimization algorithms are explained.Finally,the future development of various swarm intelligence optimization algorithms is prospected.

关键词： bionics natural heuristic algorithm swarm intelligence algorithm intelligent computing

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大棚用蔬菜移苗栽种一体机设计

机械设计 2024年第5期41卷 70-75页

作者：侯晓莉胡胜西安理工大学机械与精密仪器工程学院陕西西安710048 东南大学机械工程学院江苏南京211189

蔬菜钵苗自动化移栽技术可以解放生产力,提高效率,进而获得更大的经济收益。为适应我国新疆区域大棚蔬菜种植的情况,文中提出了一种钵苗移栽装置原型机方案。整机采用X-Y横纵向移动机构实现带动仿手指形夹板有效运动从而完成夹取苗过程... 详细信息

蔬菜钵苗自动化移栽技术可以解放生产力,提高效率,进而获得更大的经济收益。为适应我国新疆区域大棚蔬菜种植的情况,文中提出了一种钵苗移栽装置原型机方案。整机采用X-Y横纵向移动机构实现带动仿手指形夹板有效运动从而完成夹取苗过程,并采用杠杆原理设计双鸭嘴式定点竖直打孔下苗结构。该装置实现了取苗、打孔和栽苗的一体化操作,集成度较高。

关键词：蔬菜机械化移栽装置取苗机构打孔下苗机构运动仿真