检索结果-南通市图书馆

Innovative Thermophotovoltaic Power Source Using Silicon Concentrator Solar Cells

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Innovative Thermophotovoltaic Power Source Using Silicon Con...

Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

第十五届国际光伏科学与工程大会

作者： k.qiu A.C.S.Hayden CANMET Energy Technology Centre-Ottawa Natural Resources Canada 1 Haanel Drive Ottawa Ontario Canada K1A 1M1 CANMET Energy Technology Centre-Ottawa Natural Resources Canada 1 Haanel Drive Ottawa Ontario Canada K1A 1M1

＜正＞ TPV power source has application in self-powered gas appliances, residential combined heat and power and stand-alone power generators. This is particularly attractive for areas with a long heating season and remote communities where connection to the grid is not cost effective. Moreover, TPV power sources could be complementary to solar PV systems in cold climates and during winter when the sun is not visible or its radiation density is diminished. In the present study, recently-developed concentrator solar cell modules were examined and applied to a TPV power system. In this system, a unique combustion-heated selective radiator emits radiation with a desired spectrum, driving the concentrator solar cells. A prototype system with heat recuperation was designed, built and tested. A photocurrent with a concentration factor above 21 was achieved and an electrical power density of 0.276 W/cm2 was generated by the solar cells. The electrical power density increased with the level of heat recuperation. We conclude that the concentrator solar cell based TPV power source is technically feasible and has potential for efficient, silent and stand-alone power production.

关键词： Concentrator solar cells TPV Selective radiator Power system

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang Lin Xueqing qiu Yanlin Qin Guangdong Provincial key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Potassium and calcium channels in different nerve cells act as therapeutic targets in neurological disorders

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第5期20卷 1258-1276页

作者： Qing qiu Mengting Yang Danfeng Gong Haiying Liang Tingting Chen Department of Pharmacology School of PharmacyNantong UniversityNantongJiangsu ProvinceChina Jiangsu Province key Laboratory of Inflammation and Molecular Drug Target NantongJiangsu ProvinceChina Department of Pharmacy Longyan First Affiliated Hospital of Fujian Medical UniversityLongyanFujian ProvinceChina

The central nervous system, information integration center of the body, is mainly composed of neurons and glial cells. The neuron is one of the most basic and important structural and functional units of the central nervous system, with sensory stimulation and excitation conduction functions. Astrocytes and microglia belong to the glial cell family, which is the main source of cytokines and represents the main defense system of the central nervous system. Nerve cells undergo neurotransmission or gliotransmission, which regulates neuronal activity via the ion channels, receptors, or transporters expressed on nerve cell membranes. Ion channels, composed of large transmembrane proteins, play crucial roles in maintaining nerve cell homeostasis. These channels are also important for control of the membrane potential and in the secretion of neurotransmitters. A variety of cellular functions and life activities, including functional regulation of the central nervous system, the generation and conduction of nerve excitation, the occurrence of receptor potential, heart pulsation, smooth muscle peristalsis, skeletal muscle contraction, and hormone secretion, are closely related to ion channels associated with passive transmembrane transport. Two types of ion channels in the central nervous system, potassium channels and calcium channels, are closely related to various neurological disorders, including Alzheimer's disease, Parkinson's disease, and epilepsy. Accordingly, various drugs that can affect these ion channels have been explored deeply to provide new directions for the treatment of these neurological disorders. In this review, we focus on the functions of potassium and calcium ion channels in different nerve cells and their involvement in neurological disorders such as Parkinson's disease, Alzheimer's disease, depression, epilepsy, autism, and rare disorders. We also describe several clinical drugs that target potassium or calcium channels in nerve cells and could be u

关键词： astrocytes calcium channels central nervous system extracellular ion concentration microglia neurological disorders neurons potassium channels

An investigation on the wind profiles and gravity wave dynamics in MLT region based on the meteor radars from the Meridian Project

在线全文

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2025年第1期9卷 29-38页

作者： Tai Liu Zhe Wang MengXi Shi Willie Soon ShiCan qiu Department of Geophysics College of the Geology Engineering and GeomaticsChang’an UniversityXi’an 710054China Center for Environmental Research and Earth Sciences(CERES) SalemMA 01970USA Institute of Earth Physics and Space Science(ELkH EPSS) 9400SopronHungary

The meteor radar can detect the zenith angle,azimuth,radial velocity,and altitude of meteor trails so that one can invert the wind profiles in the mesosphere and low thermosphere(MLT)region,based on the Interferometric and Doppler *** this paper,the horizontal wind field,gravity wave(GW)disturbance variance,and GW fluxes are analyzed through the meteor radar observation from 2012−2022,at Mohe(53.5°N,122.4°E)and Zuoling(30.5°N,114.6°E)stations of the(Chinese)Meridian *** Lomb−Scargle periodogram method has been utilized to analyze the periodic variations for time series with observational data *** results show that the zonal winds at both stations are eastward dominated,while the meridional winds are southward *** variance of GW disturbances in the zonal and meridional directions increases gradually with height,and there is a strong pattern of annual *** zonal momentum flux of GW changes little with height,showing weak annual *** meridional GW flux varies gradually from northward to southward with height,and the annual periodicity is *** both stations,the maximum values of zonal and meridional wind occur close to the peak heights of GW flux,with opposite *** observational evidence is consistent with the filtering *** horizontal wind velocity,GW flux,and disturbance variance of the GW at Mohe are overall smaller than those at Zuoling,indicating weaker activities in the MLT at *** power spectral density(PSD)calculated by the Lomb−Scargle periodogram shows that there are 12-month period and 6-month period in horizontal wind field,GW disturbance variance and GW flux at both stations,and especially there is also a 4-month cycle in the disturbance *** PSD of the 12-month and 6-month cycles exhibits maximum values below 88 km and above 94 km.

关键词： meteor radar wind field gravity wave Lomb−Scargle method

不同部位动静脉内瘘对老年尿毒症血液透析患者的疗效比较

在线全文

学校读者我要写书评

暂无评论

中国普通外科杂志 2014年第12期23卷 1724-1727页

作者：邱阚陈晓伟曹媛河北省衡水市哈励逊国际和平医院普外一科河北衡水053000

目的:探讨4种不同部位动静脉内瘘对老年尿毒症血液透析患者的疗效影响。方法:选取2007年5月—2010年4月收治的152例老年肾衰竭尿毒症患者,采用显微外科技术建立动静脉内瘘,根据建立部位的不同分为鼻烟窝内瘘组37例、腕部内瘘组42例、上... 详细信息

目的:探讨4种不同部位动静脉内瘘对老年尿毒症血液透析患者的疗效影响。方法:选取2007年5月—2010年4月收治的152例老年肾衰竭尿毒症患者,采用显微外科技术建立动静脉内瘘,根据建立部位的不同分为鼻烟窝内瘘组37例、腕部内瘘组42例、上肢前臂内瘘组36例和上臂肱动脉内瘘组37例,比较各组不同时间的内瘘血流量、通畅率及并发症等。结果:上臂肱动脉内瘘组的内瘘血流量最高,达(334.56±71.52)m L/min,明显高于鼻烟窝内瘘组、腕部内瘘组和上肢前臂内瘘组,差异有统计学意义(P0.05);在血流通畅方面,4组1个月通畅率无统计学差异(P>0.05),但上臂肱动脉内瘘组1、2、3年的通畅率均明显低于其余3组(均P<0.05);上臂肱动脉内瘘组3年内血栓形成、充血性心力衰竭、假性动脉瘤发生率较其余3组呈明显上升趋势(均P<0.05)。结论:若患者血管条件允许情况下,建立鼻烟窝内瘘是老年尿毒症血液透析的患者首选部位,血管条件普遍较差选用上臂肱动脉内瘘时,需密切留意后期通畅率和并发症情况。

关键词：动静脉瘘尿毒症肾透析老年人

AAV2-PDE6B restores retinal structure and function in the retinal degeneration 10 mouse model of retinitis pigmentosa by promoting phototransduction and inhibiting apoptosis

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2408-2419页

作者： Ruiqi qiu Mingzhu Yang Xiuxiu Jin Jingyang Liu Weiping Wang Xiaoli Zhang Jinfeng Han Bo Lei Henan Eye Hospital Henan Provincial People’s HospitalPeople’s Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina Eye Institute Henan Academy of Innovations in Medical ScienceZhengzhouHenan ProvinceChina Branch of National Clinical Research Center for Ocular Disease Henan Provincial People’s HospitalZhengzhouHenan ProvinceChina Academy of Medical Science Zhengzhou UniversityZhengzhouHenan ProvinceChina

Retinitis pigmentosa is a group of inherited diseases that lead to retinal degeneration and photoreceptor cell ***,there is no effective treatment for retinitis pigmentosa caused by PDE6B ***-associated virus(AAV)-mediated gene therapy is a promising strategy for treating retinitis *** aim of this study was to explore the molecular mechanisms by which AAV2-PDE6B rescues retinal *** do this,we injected retinal degeneration 10(rd10)mice subretinally with AAV2-PDE6B and assessed the therapeutic effects on retinal function and structure using dark-and light-adapted electroretinogram,optical coherence tomography,and ***-independent acquisition-mass spectrometry-based proteomic analysis was conducted to investigate protein expression levels and pathway enrichment,and the results from this analysis were verified by real-time polymerase chain reaction and western ***2-PDE6B injection significantly upregulated PDE6βexpression,preserved electroretinogram responses,and preserved outer nuclear layer thickness in rd10 *** expressed proteins between wild-type and rd10 mice were closely related to visual perception,and treating rd10 mice with AAV2-PDE6B restored differentially expressed protein expression to levels similar to those seen in wild-type *** Encyclopedia of Genes and Genome analysis showed that the differentially expressed proteins whose expression was most significantly altered by AAV2-PDE6B injection were enriched in phototransduction ***,the phototransductionrelated proteins Pde6α,Rom1,Rho,Aldh1a1,and Rbp1 exhibited opposite expression patterns in rd10 mice with or without AAV2-PDE6B ***,Bax/Bcl-2,p-ERk/ERk,and p-c-Fos/c-Fos expression levels decreased in rd10 mice following AAV2-PDE6B *** data suggest that AAV2-PDE6B-mediated gene therapy promotes phototransduction and inhibits apoptosis by inhibiting the ERk signaling pathway and upr

关键词： apoptosis AAV2-PDE6B ERk1/2 gene therapy phototransduction proteomics rd10 retinitis pigmentosa

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu qiu Xiaohan Chen Yinkun Zhao Yujue Wang Qu Yue Taotao Gao Wenlong Liu Dan Xiao Zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

Nanograting-Based Dynamic Structural Colors Using Heterogeneous Materials

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

NANO-MICRO LETTERS 2025年第1期17卷 1-14页

作者： Wang, Jingang Yu, Haibo Zheng, Jianchen Zhang, Yuzhao Guo, Hongji qiu, Ye Wang, Xiaoduo Yang, Yongliang Liu, Lianqing Chinese Acad Sci Shenyang Inst Automat State Key Lab Robot Shenyang 110016 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

A 2.5-dimensional dynamic structural color based on nanogratings of heterogeneous materials was proposed by interweaving a pH-responsive hydrogel with IP-L *** nanogrid structures exhibit brilliant tuneable structural color, high sensitivity, and ultrafast recovery speeds in response to *** 4D printing-based grayscale design approach was proposed for the patterned encoding and array printing of dynamic structural colors, promoting their application in patterned printing, information encryption, and microfluidic chip sensing. Dynamic structural colors can change in response to different environmental stimuli. This ability remains effective even when the size of the species responsible for the structural color is reduced to a few micrometers, providing a promising sensing mechanism for solving microenvironmental sensing problems in micro-robotics and microfluidics. However, the lack of dynamic structural colors that can encode rapidly, easily integrate, and accurately reflect changes in physical quantities hinders their use in microscale sensing applications. Herein, we present a 2.5-dimensional dynamic structural color based on nanogratings of heterogeneous materials, which were obtained by interweaving a pH-responsive hydrogel with an IP-L photoresist. Transverse gratings printed with pH-responsive hydrogels elongated the period of longitudinal grating in the swollen state, resulting in pH-tuned structural colors at a 45 degrees incidence. Moreover, the patterned encoding and array printing of dynamic structural colors were achieved using grayscale stripe images to accurately encode the periods and heights of the nanogrid structures. Overall, dynamic structural color networks exhibit promising potential for applications in information encryption and in situ sensing for microfluidic chips.

关键词： Dynamic structural colors Four-dimensional printing pH-responsive Nanogrid Heterogeneous materials

有为政府与有效市场下的我国职业教育治理:理论逻辑与实践路径

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

高校教育管理 2025年第1期19卷 62-73页

作者：李政邱懿华东师范大学职业教育与成人教育研究所上海200062 中华人民共和国教育部职业教育与成人教育司北京100816 北京大学教育学院北京100871

政府与市场的关系是职业教育内外部治理关系的核心,先后经历了政府主导论、市场基础论、有为政府与有效市场论的演变。在有为政府与有效市场的关系形塑下,职业教育治理改革应实现三大转变,即政府治理方式应从事后响应转变为事前布局,职... 详细信息

政府与市场的关系是职业教育内外部治理关系的核心,先后经历了政府主导论、市场基础论、有为政府与有效市场论的演变。在有为政府与有效市场的关系形塑下,职业教育治理改革应实现三大转变,即政府治理方式应从事后响应转变为事前布局,职业院校治理角色应从代理主体转变为改革先锋,市场主体参与治理的动机应从短期利益转变为战略投资。政府、职业院校和市场的关系应由单向的“影响回应”关系转变为双向的“并行互动”关系。当前,我国政府参与职业教育治理的权责边界不清,职业院校办学自主权无法满足发展需求,市场主体参与职业教育缺乏战略自觉。为此,我国应加强各级政府的政策协作,提升政府政策的精准度和前瞻性;优化职业院校组织定位和内部治理模式,提升学校治理的灵活性和有效性;深度分析企业发展的外部条件和内部需求,提升企业发展的积极性和适应性。

关键词：职业教育治理有为政府有效市场全面深化改革办学自主权