检索结果-南通市图书馆

solution‑Processed Thin Film Transparent Photovoltaics:Present Challenges and Future Development

Nano-Micro Letters 2025年第2期17卷 566-600页

作者： Tianle Liu Munerah M.s.Almutairi Jie Ma Aisling stewart Zhaohui Xing Mengxia Liu Bo Hou Yuljae Cho UM-sJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China school of Physics and Astronomy Cardiff UniversityCardiff CF243AAWalesUK Department of Electrical and Computer Engineering Yale UniversityNew HavenCT 06511USA Energy sciences Institute Yale UniversityWest HavenCT 06516USA Future Photovoltaics Research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Electrical energy is essential for modern society to sustain economic *** soaring demand for the electrical energy,together with an awareness of the environmental impact of fossil fuels,has been driving a shift towards the utilization of solar ***,traditional solar energy solutions often require extensive spaces for a panel installation,limiting their practicality in a dense urban *** overcome the spatial constraint,researchers have developed transparent photovoltaics(TPV),enabling windows and facades in vehicles and buildings to generate electric *** TPV advancements are focused on improving both transparency and power output to rival commercially available silicon solar *** this review,we first briefly introduce wavelength-and non-wavelengthselective strategies to achieve *** of merit and theoretical limits of TPVs are discussed to comprehensively understand the status of current TPV *** we highlight recent progress in different types of TPVs,with a particular focus on solution-processed thin-film photovoltaics(PVs),including colloidal quantum dot PVs,metal halide perovskite PVs and organic *** applications of TPVs are also reviewed,with emphasis on agrivoltaics,smart windows and ***,current challenges and future opportunities in TPV research are pointed out.

关键词： Transparent semiconductors solution-processable transparent solar cell Emerging solar cell materials Buildingintegrated photovoltaics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of different deformation and annealing procedures on non-magnetic textured Cu_(60)Ni_(40) alloy substrates

引用

International Journal of Minerals,Metallurgy and Materials 2018年第8期25卷 930-936页

作者： Jin Cui Hong-li suo Jin-hua Wang Jean-Claude Grivel Lin Ma Chun-yan Li Yao-tang Ji shaheen Kausar Min Liu Yi Wang College of Materials science and Engineering Beijing University of Technology Department of Energy Conversion and storage Technical University of Denmark

In this work,a series of specimens was prepared by the casting *** cube-textured substrates were processed by heavy cold rolling and recrystallization annealing(i.e.,the rolling-assisted biaxially textured substrates(RABi Ts) method).Both the rolling and the recrystallization texture in the alloy tapes were investigated by X-ray diffraction and electron back-scatter diffraction,*** results showed that a strong copper-type deformation texture was obtained in the heavy cold-rolled *** addition,the recrystallization annealing process was found to be very important for the texture transition in the Cu–Ni alloy *** cube texture content in the Cu60 Ni40 alloy substrates reached 99.7%(≤10°) after optimization of the cold-rolling procedure and the recrystallizing heat-treatment process,whereas the content of low-angle grain boundaries(from 2° to 10° misorientation) in the substrate reached 95.1%.

关键词： non-magnetic CuNi alloy substrates annealing cube texture

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

GC/GCMs analysis of the petroleum ether and dichloromethane extracts of Moringa oleifera roots

引用

Asian Pacific Journal of Tropical Biomedicine 2014年第8期4卷 650-654页

作者： shaheen Faizi saima sumbul Muhammed Ali Versiani Rubeena saleem Aisha sana Hira siddiqui HEJ Research Institute of Chemistry International Center for Chemical and Biological SciencesUniversity of KarachiKarachi-75270Pakistan Department of Chemistry Federal Urdu University of ArtsSciences and TechnologyGulshan-e-IqbalScience CampusKarachi-75300Pakistan Pharmaceutical Chemistry Faculty of PharmacyHamdard UniversityKarachi-74600Pakistan Dr HMI Institute of Pharmacology and Herbal SciencesHamdard UniversityKarachi-74600Pakistan

Objective:To explore the phytochemical constituents from petroleum ether and diehloromethane extracts of Moringa oleifera(***)roots using GC/GC—***:A total of 5.11 kg fresh and undried crashed root of *** were cut into small pieces and extracted with petroleum ether and diehloromethane(20 ***) at room temperature for 2 *** concentrated extracts were subjected to their GC—Ms ***:The GC-Ms analysis of the petroleum ether and diehloromethane extracts of *** roots,which showed promising biological activities,has resulted in the identification 102 *** constituents belong to 15 classes of compounds including hydrocarbons,fatty acids,esters,alcohols,***,pyrazine,***,steroids,*** and N-hydroxyimine derivatives,unsaturated *** and ***/GC-Ms studies on petroleum ether extraet of the roots revealed that it contained 39 compounds,belonging to nine *** s8 has been isolated as a pure compound from the *** major compounds identified from petroleum ether extract were trans-13-clocosene(37.9%).nonacosane(32.6%).cycloartenol(28.6%) nonadecanoic acid(13.9%) and cyclooctasulfur s8(13.9%).Dichloromethane extract of the roots was composed of 63 compounds of which nasimizinol(58.8%) along with oleic acid(46.5%),N—benzyl-N-(7—cyanato heptanamide(38.3%),N—benzyl-N—(1—chlorononyl) amide(30.3%),bis[3—benzyl prop-2-ene]-1-one(19.5%) and N.N-dibeuzyl—2-ene pent 1.5—diamide(11.6%) were the main ***:This study helps to predict the formula and structure of active molecules which can be used as *** result also enhances the traditional usage of *** which possesses a number of bioactive compounds.

关键词： Moringa oleifera Moringaceae Roots Petroleum ether and dichloromethane extracts Cyclooctasulfur s8 GC/GCMs

来源：

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

Alteration of chemical behavior of L-ascorbic acid in combination with nickel sulfate at different pH solutions in vitro

引用

Asian Pacific Journal of Tropical Biomedicine 2012年第3期2卷 220-222页

作者： shaheen A Maniyar Jameel G Jargar swastika N Das salim A Dhundasi Kusal K Das Environmental Health Research Unit Department of PhysiologyAl Aineen Medical College Department of Engineering Chemistry B.L.D.E.A's V.P.Dr.P.G.Halakatti College of Engineering and Technology

Objective:To evaluate the alteration of chemical behavior of L-ascorbic acid(vitamin C) with metal ion(nickel) at different pH solutions in ***:spectra of pure aqueous solution of L-ascorbic acid(E mark) compound and NisO_4(H_2O)(sigma UsA) were evaluated by UV visible *** analysis of L-ascorbic acid and nickel at various pH(2.0, 7.0,7.4 and 8.6) at room temperature of 29℃ was *** this special analysis,combined solution of L-ascorbic acid and nickel sulfate at different pH was also ***:The result revealed that λ_(max)(peak wavelength of spectra) of L-ascorbic acid at pH 2.0 was 289.0 run whereas at neutral pH 7.0,λ_(max) was 29s.4 *** alkaline pH 8.6,λ_(max) was 295.4 nm and at pH 7.4 the λ_(max) of L-ascorbic acid remained the same as 295.4 *** solution at acidic pH 2.0 was 394.5 nm,whereas at neutral pH 7.0 and pH 7.4 were the same as 394.5 *** at alkaline pH 8.6,λ_(max) value of nickel sulfate became 392.0 *** combined solution of L-ascorbic acid and nickel sulfate(6 mg/mL each) at pH 2.0 showed 292.5 nm and 392.5 nm,respectively whereas at pH 7.0,L-ascorbic acid showed 296.5 nm and nickel sulfate showed 391.5 *** pH 7.4,L-ascorbic acid showed 297.0 nm and nickel sulfate showed 394.0 nm in the combined solution whereas at pH 8.6(alkaline) L-ascorbic acid and nickel sulfate were showing 297.0 and 393.5 nm,respectively. Conclusions:Results clearly indicate an altered chemical behavior of L-ascorbic acid either alone or in combination with nickel sulfate in vitro at different *** oxidation of L-ascorbic acid to L-dehydro ascorbic acid via the free radical(Hsc*) generation from the reaction of H,Asc + Ni(Ⅱ) is the cause of such alteration of λ_(max),value of L-ascorbic acid in the presence of metal nickel.

关键词： L-ascorbic acid Nickel pH spectrum Chemical behavior spectra UV visible spectrophotometer Peak wavelength Free radical Vitamin C Nickel sulfate

来源：

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

selenium Doping in Bi-based superconductors

引用

Journal of Materials science & Technology 2000年第3期16卷 351-353页

作者： Affia Aslam and s.A.siddiqi (Centre for solid state Physics, University of the Punjab, Lahore-54590, Pakistan) J.A.A.Khan and R.shaheen (Pakistan Institute of Nuclear science & Technology, Post Office Nilore, Islamabad, Pakistan) Centre for solid state Physics University of the Punjab Lahore-54590 Pakistan Pakistan Institute of Nuclear science and Technology Islamabad Post Office Nilore Pakistan

six different compositions in Bi2sr2Ca2Cu3Oy:sex with x=0.0, 0.05, 0.1, 0.2, 0.3, 0.4 have been prepared by the solid state reaction method to explore doping of selenium in the system. sintering at 847±4℃ and subsequent annealing at 827℃ has been carried out for different time periods. The samples have been characterized by X-ray powder diffraction (XRD), scanning electron microscopy (sEM), and measurement of resistance below room temperature has been carried out by four-probe method. superconducting transition temperature (Tc) value shows dependence on se concentration: the highest Tc(0)=:94 K is observed for x=0.3. A detailed Auger electron spectroscopic (AEs) analysis has been carried out to investigate the presence of se in the grains of the superconductors. It has also been found that se increases the Tc(0) value and promotes the formation of high temperature superconducting phase (2223), which coexists with low temperature phase (2212) in the sintered samples.

关键词： selenium Doping in Bi-based superconductors high XRD Bi

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

synthesis of ion imprinted polymers for selective recognition and separation of rare earth metals

引用

Journal of Rare Earths 2017年第2期35卷 177-186页

作者： Mashitah M.Yusoff Nik Rohani Nik Mostapa Md shaheen sarkar Tapan Kumar Biswas Md Lutfor Rahman sazmal Effendi Arshad Mohd sani sarjadi Ajaykumar D.Kulkarni Faculty of Industrial sciences and Technology University Malaysia Pahang Faculty of science and Natural Resources Universiti Malaysia Sabah Department of Applied sciences MIT Academy of Engineering

Lanthanide-ion imprinted polymers（L-IIPs） were synthesized by stoichiometric amounts of rare earth ions and the cavities in the polymers were created for the corresponding lanthanide ions. The maximum sorption capacities were estimated to be 125.3, 126.5, 127.6, 128.2 and 129.1 mg/g for Pr, Nd, sm, Eu and Gd, respectively at p H 6. In the selectivity study, the L-IIPs exhibited good selectivity to the specific rare earth ions in the presence of coexisting cations. The imprinting results were found to be excellent with some rare earth ions over other competitor rare earth ions with the same charges and close ionic radius.

关键词： ion-imprinted polymers rare earths separation adsorption lanthanide-ions

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Targeting harmful effects of non-excitatory amino acids as an alternative therapeutic strategy to reduce ischemic damage

引用

Neural Regeneration Research 2025年第9期20卷 2454-2463页

作者： Victoria Jiménez Carretero IrisÁlvarez-Merz Jorge Hernández-Campano sergei A.Kirov Jesús M.Hernández-Guijo Department of Pharmacology and Therapeutic School of MedicineUniv.Autónoma de MadridMadridSpain Ramón y Cajal Institute for Health Research(IRYCIs) Neurobiology-Research ServiceHospital Ramón y CajalMadridSpain Institute of Neurobiology Faculty of Mathematics and Natural SciencesHeinrich Heine University DüsseldorfDüsseldorfGermany Department of Neuroscience and Regenerative Medicine&Department of Neurosurgery Medical College of Georgia at Augusta UniversityAugustaGAUSA

The involvement of the excitatory amino acids glutamate and aspartate in ce rebral ischemia and excitotoxicity is ***,the role of non-excitatory amino acids in brain damage following a stroke or brain trauma remains largely *** release of amino acids by necrotic cells in the ischemic core may contribute to the expansion of the *** findings indicated that the reversible loss of field excitato ry postsynaptic potentials caused by transient hypoxia became irreversible when exposed to a mixture of just four non-excitatory amino acids(L-alanine,glycine,L-glutamine,and L-serine)at their plasma *** amino acids induce swelling in the somas of neurons and astrocytes during hypoxia,along with permanent dendritic damage mediated by N-methyl-D-aspartate *** N-methyl-D-aspartate receptors prevented neuronal damage in the presence of these amino acids during *** is likely that astroglial swelling caused by the accumulation of these amino acids via the alanine-serine-cysteine transporter 2 exchanger and system N transporters activates volume-regulated anion channels,leading to the release of excitotoxins and subsequent neuronal damage through N-methyl-D-aspartate receptor ***,previously unrecognized mechanisms involving non-excitatory amino acids may contribute to the progression and expansion of brain injury in neurological emergencies such as stroke and traumatic brain *** these pathways co uld highlight new therapeutic targets to mitigate brain injury.

关键词： cell swelling N-methyl-D-aspartate receptor non-excitatory amino acids stroke synaptic transmission

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Restless head syndrome:A retrospective study

引用

World Journal of Methodology 2025年第1期15卷 51-59页

作者： sanjay Prakash Varoon Vadodaria Niraj Chawda Chetsi s shah Anurag Prakash Department of Neurology Smt.B.K.Shah Medical Institute and Research CentreSumandeep VidyapeethVadodara 391760GujarātIndia Department of Medicine Smt.B.K.Shah Medical Institute and Research CentreSumandeep VidyapeethVadodara 391760GujarātIndia Department of Medicine Parul Institute of Medical Sciences and Research CentreParul University WaghodiaVadodara 391760India

BACKGROUND Restless legs syndrome(RLs)is characterized by an urge to move with an unpleasant sensation in the lower *** typically affects the ***,it can also affect several other body regions,such as the arms,abdomen,face,neck,head,and genital *** are only a few reports of the RLs variant affecting the *** To assess the epidemiological,clinical,and other aspects of the RLs variant affecting the *** We conducted a retrospective study of 17 adult patients(>18 years)who met the RLs criteria and simultaneously experienced RLs-like symptoms in the *** The median age at which symptoms appeared was 41.6 *** and females were equally affected(1.1:1).All 17 patients had uncomfortable sensations in the lower *** or disturbed sleep was the most common comorbidity(n=16,88.2%).However,headache was the most common presenting or primary symptom(n=10,70.5%).Dizziness or an abnormal sensation in the head was the second most common presenting symptom(5 patients,29.4%).Other presenting features were leg pain,backache,and generalized body *** patients responded favorably to dopaminergic *** If RLs-related unpleasant sensations and pain are felt in the head,they may be misinterpreted as headache,dizziness,or psychosomatic *** and headaches in a subset of patients may be two phenotypic manifestations of the same disorder.

关键词： Restless legs syndrome Restless head syndrome Dopamine Headache Migraine Tension-type headache

来源：

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

Game Chromatic Number of some Regular Graphs

引用

Open Journal of Discrete Mathematics 2019年第4期9卷 159-164页

作者： Ramy shaheen Ziad Kanaya Khaled Alshehada Department of Mathematics Tishreen University Lattakia Syria

Let G be a graph and k be a positive integer. We consider a game with two players Alice and Bob who alternate in coloring the vertices of G with a set of k colors. In every turn, one vertex will be chosen by one player. Alice’s goal is to color all vertices with the k colors, while Bob’s goal is to prevent her. The game chromatic number denoted by?χg(G), is the smallest k such that Alice has a winning strategy with k colors. In this paper, we determine the game chromatic number?χg of circulant graphs?Cn(1,2), , and generalized Petersen graphs GP(n,2), GP(n,3).

关键词： Game Chromatic Number Circulant Graph Generalized Petersen Graphs

来源：

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

Domination and Eternal Domination of Jahangir Graph

引用

Open Journal of Discrete Mathematics 2019年第3期9卷 68-81页

作者： Ramy shaheen Mohammad Assaad Ali Kassem Department of Mathematics Faculty of Science Tishreen University Lattakia Syria

In the eternal dominating set problem, guards form a dominating set on a graph and at each step, a vertex is attacked. We consider the “all guards move” of the eternal dominating set problem. In which one guard has to move to the attacked vertex and all the remaining guards are allowed to move to an adjacent vertex or stay in their current position after each attack. If the new formed set of guards is still a dominating set of the graph then we successfully defended the attack. Our goal is to find the minimum number of guards required to eternally protect the graph. We call this number the m-eternal domination number and we denote it by . In this paper we find the eternal domination number of Jahangir graph Js,m for s=2,3 and arbitrary m. We also find the domination number for J3,m .

关键词： Jahangir Graph Graph Protection Domination Number Eternal Domination

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：