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Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/P Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

Oxygen vacancies enriched Ir/WOx catalysts for the directly chem-catalytic conversion of cellulose to ethanol

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Tungsten 2025年第1期7卷 88-99页

作者： Yu-Jing Weng Zhao-Ying Ding Ying-chao Li Yuan-Feng Wu Yuan-Yang Xu Rui chen Xiao-Lei Zhao Hai-Yong Wang da-Lei Zhang Yu-Long Zhang Henan Key Laboratory of coal Green conversion and International Joint Laboratory of Coal Clean Utilization College of Chemistry and Chemical Engineering Henan Polytechnic University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Liaoning Institute of Energy Technology

Tungsten and its oxides are highly versatile catalysts with unique properties that hold great promise for a wide array of applications,including biological pathways and chemical *** chemo-catalysis of cellulose to ethanol presents a promising avenue for ethanol synthesis with the potential for enhanced efficiency compared to conventional methods,offering a sustainable and carbon-neutral alternative to existing petrochemical and biological ***,Ir/WOxcatalysts enriched with oxygen vacancies were meticulously prepared and demonstrated remarkable catalytic performance in converting cellulose to ethanol directly in the presence of tungstic *** catalyst achieved a high ethanol yield of 66.5%under optimal reaction conditions,approaching the theoretical yield limit of traditional ethanol *** results revealed the presence of oxygen defects,Bronsted/Lewis acidity,and Ir nanoclusters on the catalyst surface,working synergistically to facilitate the cascade catalysis of cellulose hydrolysis,sugar retro-aldol condensation reaction,and c2 intermediate hydrodeoxygenation to *** situ Fourier transform infrared spectrometer analysis confirmed the catalyst's ability to enhance the adsorption and activation of ethylene glycol for ethanol *** manipulating subtle structural features,this study offers a fresh perspective on tungsten group catalyst design and underscores the importance of synergistic effects among catalytic sites for the efficient production of ethanol from cellulose.

关键词： cellulosic ethanol chem-catalysis Hydrogenolysis Retro-aldol condensation Tungsten

Buruli ulcer in Nigeria:results of a pilot case study in three rural districts

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Infectious Diseases of Poverty 2016年第1期5卷 328-336页

作者： Kingsley N.Ukwaja Anthony O.Meka Alphonsus chukwuka Kingsley B.Asiedu Kristina L.Huber Miriam Eddyani Joseph N.chukwu Moses c.Anyim charles c.Nwafor da.iel c.oshi Nelson O.Madichie Ngozi Ekeke Martin Njoku Kentigern Ntana Department of Medicine Federal Teaching HospitalFMC RdAbakalikiEbonyi StateNigeria Medical Department German Leprosy and TB Relief AssociationEnuguEnugu StateNigeria St Benedict’s Tuberculosis and Leprosy Rehabilitation Hospital OgojaCross River StateNigeria Global Buruli Ulcer Initiative Department of Control of Neglected Tropical DiseasesWorld Health OrganizationGenevaSwitzerland Department of Infectious Diseases and Tropical Medicine University HospitalLudwig-Maximilians UniversityMunichGermany Mycobacteriology Unit Department of MicrobiologyInstitute of Tropical MedicineAntwerpBelgium

Background:Buruli ulcer(BU),also known as Mycobacterium ulcerans disease,is the third most common mycobacterial disease *** BU disease has been diagnosed among Nigerians in neighbouring West African countries,data on the burden of the disease in Nigeria itself are *** study aimed to assess the magnitude and epidemiology of BU in the South South region of ***:We conducted a cross-sectional survey in the Ogoja territory(comprising 31 communities).We undertook sensitisation programmes centred on BU in 10 of the *** were asked to identify community members with long-standing ulcers,who were then invited for *** also contacted traditional healers to refer their clients who had non-healing *** suspected cases had a full clinical evaluation and laboratory *** cases were given treatment in a referral hospital in the ***:We diagnosed 41 clinical BU cases;36(87.8%)of which were confirmed by quantitative polymerase chain reaction(qPcR).These 36 PcR-confirmed cases were diagnosed in a total population of 192,169 ***,the estimated crude prevalence of BU was 18.7 per 100,000 population,varying from 6.0 to 41.4 per 100,000 in the districts *** majority(66.7%)of the cases were *** 92%of the BU lesions were located on the patients’*** differences were observed between the sexes in terms of the location of the *** age of the patients ranged from four to 60 years,with a median age of 17 *** 35(100%)patients who consented to treatment completed chemotherapy as *** the treated cases,29(82.9%)needed and received *** cases healed,but 29(82.9%)had some limitations in *** with limitations in movement occurred in 18/19(94.7%)and 8/10(80.0%)of patients with lesions>15 cm(category III)and 6–15 cm in diameter(category II),*** median duration of treatment was 130(87–164)days for children and

关键词： Buruli ulcer Mycobacterium ulcerans Epidemiology case finding Endemicity Ogoja cross River State Nigeria

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

Profile and determinants of unsuccessful tuberculosis outcome in rural Nigeria:Implications for tuberculosis control

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World Journal of Methodology 2016年第1期6卷 118-125页

作者： Kingsley N Ukwaja Sarah N oshi Isaac Alobu da.iel c.oshi Department of Internal Medicine Federal Teaching Hospital centre for Development and Reproductive Health National Tuberculosis and Leprosy control Pro-gramme Ministry of Health

AIM: To determine the treatment outcomes and predictors for unsuccessful tuberculosis(TB) outcomes in rural ***: Adult rural TB patients treated during 2011 and 2012 in two healthcare facilities(one urban public and one rural private) were identified from the TB treatment registers and retrospectively reviewed. Tuberculosis treatment outcomes were assessed according to World Health Organisation guidelines. Determinants of unsuccessful treatment outcomes were identified using a multivariable logistic regression ***: Between January 2011 to December 2012, 1180 rural TB patients started treatment, of whom 494(41.9%) were female. The treatment success rate was 893(75.7%), while the rates of death, loss-tofollow-up, and treatment failure were 129(10.9%), 100(8.5%), and 18(1.5%) respectively. In the final multivariable logistic regression model, the odds of unsuccessful treatment outcome were higher among patients who received care at the urban public facility(a OR = 2.9, 95%cI: 1.9-4.4), smear-negative(1.3,1.0-1.8) and extrapulmonary(2.7, 1.3-5.6) TB patients, human immunodeficiency virus(HIV) co-infected(2.1, 1.5-3.0), and patient who received the longer(8-mo) anti-TB regimen(1.3, 1.1-1.8).cONcLUSION: Treatment success among rural TB patient in Nigeria is low. High risk groups should be targeted for closer monitoring, socio-economic support, and expansion of TB/HIV activities.

关键词： Tuberculosis Treatment outcome Rural Health services Nigeria

采用感受野优化与渐进特征融合的图像超分辨率算法

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西安交通大学学报 2025年第1期59卷 136-147页

作者：吴洪伍盖绍彦达飞鹏东南大学自动化学院 210096南京东南大学复杂工程系统测量与控制教育部重点实验室 210096南京

针对现有基于深度学习的超分辨率方法存在参数冗余以及难以学习到全局上下文信息、重建图像高频特征能力欠佳的问题,提出一种基于感受野优化与渐进特征融合的超分辨率网络(RPSRnet),其在单幅图像重建方面实现了较高的性能。该网络采用... 详细信息

针对现有基于深度学习的超分辨率方法存在参数冗余以及难以学习到全局上下文信息、重建图像高频特征能力欠佳的问题,提出一种基于感受野优化与渐进特征融合的超分辨率网络(RPSRnet),其在单幅图像重建方面实现了较高的性能。该网络采用像素注意力机制与大感受野卷积相结合的方式,设计两条渐进路径将输入表征为不同层次的特征抽象,增强网络捕获上下文信息的能力,同时减少了网络参数冗余。通过分层卷积和多重感受野分支,在保持轻量卷积的前提下,于分层的多路径上学习不同尺度的融合特征,增强网络重建边缘细节和复杂纹理特征的能力。实验结果表明:相比于先进算法,所提算法在基准测试集Set5上的峰值信噪比达到32.47 dB,在测试集Set14上达到28.81 dB,优于现有的先进算法,且网络参数更少,实现了9%的参数缩减,从而验证了算法的有效性。

关键词：超分辨率注意力机制感受野优化特征融合

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul c.Khot chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

A Parameter-Space Analysis of the Rikitake System

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chinese Physics Letters 2013年第12期30卷 13-16页

作者： Rodrigo A.da Silva Paulo c.Rech Departamento de Física Universidade do Estado de Santa Catarina89219-710 JoinvilleBrazil

We investigate analytically and numerically the dynamics of the Rikitake *** Routh–Hurwitz criterion is used to study the stability of the equilibrium points of the differential equation system model,as functions of two *** dynamics of the model are numerically studied using diagrams that associate colors to the largest Lyapunov exponent value,in two-dimensional parameter ***,phase-space plots and bifurcation diagrams are used to distinguish periodic and chaotic attractors.

关键词： bifurcation exponent chaotic