检索结果-南通市图书馆

Powering the future: A comprehensive review on calcium-ion batteries

Journal of Energy Chemistry 2024年第3期90卷 77-97,I0004页

作者： Ameneh Taghavi-Kahagh Hossein Roghani-Mamaqani Mehdi Salami-Kalajahi Faculty of Polymer Engineering Sahand University of TechnologyP.0.Box 51335-1996Tabriz Iran Institute of Polymeric Materials Sahand University of TechnologyP.0.Box 51335-1996Tabriz Iran

Due to concerns regarding the future availability,cost,and safety of lithium in Li-ion batteries(LIBs),researchers are exploring alternative chemistries such as Na-ion,Li-S,Li-air,and multivalent ion *** ion technologies,which utilize divalent or trivalent ions,like Mg^(2+),Ca^(2+),and Al^(3+),show promise in achieving greater energy densities than LIBs due to their ability to deposit uniformly on anodes and intercalate into *** magnesium-ion batteries(MIBs) have been the primary area of research for multivalent ion batteries,the cost-effectiveness and abundance of calcium have sparked a growing interest in calcium-ion batteries(CIBs) in recent *** to LIBs,CIBs have the potential to provide longer cycle life,enhanced safety,and increased energy ***,the development of CIBs comes with several challenges,such as finding suitable electrode and electrolyte materials that ensure the stability and safety of the *** primary hurdle in CIBs lies in the plating/stripping *** is a significant hindrance preventing the occurrence of plating/stripping in CIBs,which lies in the formation of a passive layer resulting from the decomposition of the *** objective of this article is to examine the advancements made in ***,it aims to comprehensively assess the mechanisms and materials employed in various battery components,as well as the obstacles encountered in *** includes recent advancements in electrode materials,electrolytes,cell configurations,and the challenges and opportunities for enhancing the performance and commercial viability of CIBs.

关键词： Ca-ion batteries Cathode Anode Electrolyte

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

The future of computer-aided sperm analysis

引用

Asian Journal of Andrology 2015年第4期17卷 545-553页

作者： Sharon T Mortimer Gerhard van der Horst David Mortimer Oozoa Biomedical West Vancouver BC Canada Department of Medical Biosciences University ofthe Western Cape Bellville South Africa 0ozoabiomedical West Vancouver BC Canada.

Computer-aided sperm analysis （CASA） technology was developed in the late 1980s for analyzing sperm movement characteristics or kinematics and has been highly successful in enabling this field of research. CASA has also been used with great success for measuring semen characteristics such as sperm concentration and proportions of progressive motility in many animal species, including wide application in domesticated animal production laboratories and reproductive toxicology. However, attempts to use CASA for human clinical semen analysis have largely met with poor success due to the inherent difficulties presented by many human semen samples caused by sperm clumping and heavy background debris that, until now, have precluded accurate digital image analysis. The authors review the improved capabilities of two modern CASA platforms （Hamilton Thorne CASA-II and Microptic SCA6） and consider their current and future applications with particular reference to directing our focus towards using this technology to assess functional rather than simple descriptive characteristics of spermatozoa. Specific requirements for validating CASA technology as a semi-automated system for human semen analysis are also provided, with particular reference to the accuracy and uncertainty of measurement expected of a robust medical laboratory test for implementation in clinical laboratories operating according to modern accreditation standards.

关键词： HISTORICAL INTRODUCTION

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

Layered Potassium Titanium Niobate/Reduced Graphene Oxide Nanocomposite as a Potassium‑Ion Battery Anode

引用

Nano-Micro Letters 2024年第1期16卷 1-16页

作者： Charlie A.F.Nason Ajay Piriya Vijaya Kumar Saroja Yi Lu Runzhe Wei Yupei Han Yang Xu Department of Chemistry University College London20 Gordon StreetLondon WC1H 0AJUK

With graphite currently leading as the most viable anode for potassium-ion batteries(KIBs),other materials have been left relatively *** metal oxides are among these,with many positive attributes such as synthetic maturity,longterm cycling stability and fast redox ***,to address this research deficiency we report herein a layered potassium titanium niobate KTiNbO5(KTNO)and its rGO nanocomposite(KTNO/rGO)synthesised via solvothermal methods as a high-performance anode for *** effective distribution across the electrically conductive rGO,the electrochemical performance of the KTNO nanoparticles was *** potassium storage performance of the KTNO/rGO was demonstrated by its first charge capacity of 128.1 mAh g^(−1) and reversible capacity of 97.5 mAh g^(−1) after 500 cycles at 20 mA g^(−1),retaining 76.1%of the initial capacity,with an exceptional rate performance of 54.2 mAh g^(−1)at 1 A g^(−1).Furthermore,to investigate the attributes of KTNO in-situ XRD was performed,indicating a low-strain ***-situ X-ray photoelectron spectra further investigated the mechanism of charge storage,with the titanium showing greater redox reversibility than the *** work suggests this lowstrain nature is a highly advantageous property and well worth regarding KTNO as a promising anode for future high-performance KIBs.

关键词： Potassium-ion batteries Intercalation Transition metal oxides Anodes Nanocomposite

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

Controlled deployment of a long tether to operate as a partial space elevator

引用

Astrodynamics 2024年第2期8卷 311-321页

作者： Jinbang Huang Arun K.Misra Department of Mechanical Engineering McGill UniversityMontrealQCH3A 0C3Canada

The deployment of a long tether to operate as a partial space elevator,starting from a nucleus in geostationary orbit,is *** deployment is an inherently unstable process because the center of orbit gradually decreases from the geostationary altitude when deployment *** is also observed that the elasticity of the tether has an important effect on deployment *** is shown that the application of a transverse force on the main spacecraft,determined by using linear state feedback and appropriate gains,can stabilize the *** LQR controller is *** of the dynamics of the system are carried out using this controller for various parametric values of tether elasticity,deployment rates,etc.,to evaluate the efficacy of the controller.

关键词： tether space elevator deployment stability control

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

16 keV C-离子在锥形玻璃管中的输运过程

引用

物理学报 2024年第5期73卷 100-108页

作者：牛书通詹欣华强李文腾周利华杨廷贵中核四0四有限公司兰州732850

鉴于经锥形玻璃管聚焦的离子束在微纳加工、微区分析以及辐照生物医学等领域具有广阔的应用前景,本文研究了16 keV C^(-)在不同倾斜角度的锥形玻璃管中输运过程.实验发现当处于0°倾斜角度时,出射粒子由核区和晕区构成,核区是从锥形管... 详细信息

鉴于经锥形玻璃管聚焦的离子束在微纳加工、微区分析以及辐照生物医学等领域具有广阔的应用前景,本文研究了16 keV C^(-)在不同倾斜角度的锥形玻璃管中输运过程.实验发现当处于0°倾斜角度时,出射粒子由核区和晕区构成,核区是从锥形管后锥孔中直接出射,未与锥形管内壁之间发生电荷交换,主要成分为C^(-)离子.晕区是C^(-)与锥形管内壁发生部分电荷交换作用,由C^(-)和C^(0)构成.当倾斜角度为1°时,出射离子由两部分组成:C^(0)原子束斑和C-离子束斑,未出现核区.出射核区的离子方向始终保持在入射粒子方向,与锥形管倾斜角度无关.随着锥形管不断倾斜,相对透射率不断减小,C^(0)束斑占比增加,C^(-)束斑占比减小.锥形管对入射离子有聚焦效应.本实验弥补了低能负离子在锥形管运输过程研究的欠缺,有助于聚焦离子束的后续开发应用.

关键词：锥形玻璃管输运特性负离子

来源：

维普期刊数据库博看期刊

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

Artificial ground freezing of underground mines in cold regions using thermosyphons with air insulation

引用

International Journal of Mining Science and Technology 2024年第5期34卷 643-654页

作者： Ahmad F.Zueter Mohammad Zolfagharroshan Navid Bahrani Agus P.Sasmito Department of Civil and Resource Engineering Dalhousie UniversityHalifax B3H4R2Canada Department of Mining Engineering McGill UniversityMontreal H3A0E8Canada

Current practice of underground artificial ground freezing(AGF)typically involves huge refrigeration systems of large economic and environmental *** this study,a novel AGF technique is proposed deploying available cold wind in cold *** is achieved by a static heat transfer device called thermosyphon equipped with an air insulation layer.A refrigeration unit can be optionally integrated to meet additional cooling *** introduction of air insulation isolates the thermosyphon from ground zones where freezing is not needed,resulting in:(1)steering the cooling resources(cold wind or refrigeration)towards zones of interest;and(2)minimizing refrigeration *** design is demonstrated using well-validated mathematical models from our previous work based on two-phase enthalpy method of the ground coupled with a thermal resistance network for the *** Canadian mines are considered:the Cigar Lake Mine and the Giant *** results show that our proposed design can speed the freezing time by 30%at the Giant Mine and by two months at the Cigar Lake ***,a cooling load of 2.4 GWh can be saved at the Cigar Lake ***,this study provides mining practitioners with sustainable solutions of underground AGF.

关键词： Artificial ground freezing Underground mining Sustainable mining Thermosyphon Air insulation Cold regions

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

快堆MOX燃料中模浮动压制生坯性能与缺陷研究

引用

原子能科学技术 2024年第2期58卷 421-430页

作者：张寒王军平朱桐宇张顺孝潘传龙艾利君中核四0四有限公司甘肃兰州732850

生坯压制成型是MOX燃料制备的关键步骤,本文采用中模浮动压制技术进行MOX燃料原料氧化铝的生坯压制和芯块烧结,对比两种氧化铝粉末的中模浮动压制性能,并研究生坯外观缺陷产生的原因和解决措施。结果表明,科密欧氧化铝生坯和煅烧氧化铝... 详细信息

生坯压制成型是MOX燃料制备的关键步骤,本文采用中模浮动压制技术进行MOX燃料原料氧化铝的生坯压制和芯块烧结,对比两种氧化铝粉末的中模浮动压制性能,并研究生坯外观缺陷产生的原因和解决措施。结果表明,科密欧氧化铝生坯和煅烧氧化铝生坯的成型性和压缩性相反;随着压制压力的增加,科密欧氧化铝生坯和煅烧氧化铝生坯密度和强度逐渐增加,但压制粉末性能对生坯密度和强度的影响程度大于压制参数。生坯密度和强度与粉末性能和压制压力有关,与加压时间、降压时间和脱模维持压力无关,两种氧化铝生坯压制曲线均较好地符合黄培云双对数方程;随着压制压力的增加和脱模维持压力的减小,生坯掉盖、爆头和破碎减少;随着硬脂酸锌添加量的增加,生坯侧面划痕消失,但芯块密度逐渐降低。

关键词：物料性能密度强度压制压力脱模维持压力硬脂酸锌添加量

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

A new method for precise optical measurements of the sub-micron height of levitation of droplet clusters

引用

Particuology 2024年第4期87卷 173-178页

作者： Alexander A.Fedorets Eduard E.Kolmakov Leonid A.Dombrovsky University of Tyumen 6 Volodarskogo StTyumen625003Russia Engineering Faculty Ariel UniversityP0.B.3407000ArielIsrael Joint Institute for High Temperatures 17A Krasnokazarmennaya StMoscow111116Russia

Droplet clusters levitating over the locally heated water surface are considered a very promising phe-nomenon of microfluidics for the potential use of the droplets as unique microreactors for microbio-logical experiments.A new optical method is suggested for precise measurements of the sub-micron levitation height of single *** method is based on the analysis of variable colors of the inter-ference halo around the *** the first time,it is possible to measure the extremely low downward velocity of droplets,which grow due to steam *** velocity was found to be 5-8 nm/*** height of the levitation of various droplets just before their coalescence with a layer of water was also *** measurements might be used for the verification of sophisticated models for the droplet levitation to be developed for a very thin layer of humid air under the droplet when the Knudsen effect should be taken into account.

关键词： Precise measurements Interferometric method Droplet cluster Levitation height

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

The relationship between oxidative degradation and ammonia emission of carbon capture amines based on their chemical structures

引用

CLEAN ENERGY 2024年第1期8卷 134-152页

作者： Muchan, Pailin Supap, Teeradet Narku-Tetteh, Jessica Lisawadi, Supranee Idem, Raphael Univ Regina Clean Energy Technol Res Inst CETRI Fac Engn & Appl Sci Regina SK S4S 0A2 Canada Thammasat Univ Fac Sci & Technol Dept Math & Stat Pathum Thani 12120 Thailand

This work investigates the effect of chemical structural positioning of different functional groups in 29 amines covering primary, secondary and tertiary alkanolamines as well as multi-alkylamines and cyclic amines on both amine degradation and ammonia (NH3) emissions during post-combustion amine-based carbon dioxide capture. The results helped to elucidate possible relationships between degradation and emissions as related to the chemical structure of the amine. The results showed that longer alkyl chain lengths in multi-alkylamines caused a more drastic decrease in both degradation and NH3 emissions followed by secondary alkanolamines. The decrease in those activities for primary and tertiary alkanolamines as well as cyclic amines was low and more so for NH3 emissions. In contrast, the increase in hydroxyl groups in secondary alkanolamines caused a drastic increase in degradation and NH3 emissions. On the other hand, having more hydroxyl groups in sterically hindered primary and tertiary alkanolamines caused a more drastic decrease in degradation and a smaller decrease in NH3 emissions due to the steric hindrance within their structure. An increase in the number of amino groups in an amine caused an increase in both degradation and NH3 emission rates because these provided the reactive sites for the formation of free radicals. This effect was not as large in alkyl-cyclic amines as in multi-alkylamines due to the ability of the former to resist oxidative degradation. Furthermore, branched alkyl groups between amino and hydroxyl groups more drastically increased both the degradation and NH3 emission activities than branched alkyl groups located at the nitrogen atom. The effect of chemical structural positioning of different functional groups in 29 amines on both amine degradation and ammonia emissions during post-combustion amine-based carbon dioxide capture is studied experimentally. The results elucidate possible relationships between degradation and emissions as

关键词： amine degradation rate ammonia emission rate carbon capture amine structure oxidative degradation amines CO2 CAPTURE DIOXIDE CAPTURE FLUE-GAS MONOETHANOLAMINE ABSORPTION KINETICS STABILITY MECHANISMS SOLVENTS MEA

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

Role of adaptation measures in addressing heatwave exposure in China

引用

Advances in Climate Change Research 2024年第1期15卷 148-157页

作者： Qin-Mei HAN Qing-Chen CHAO Shao SUN Pei-Jun SHI National Climate Centre China Meteorological AdministrationBeijing 100081China State Key Laboratoryof Severe Weather Chinese Academy of Meteorological Sciences Beijing 0o08lChina Faculty of Geographical Science Beijing Normal UniversityBeijing 100875China

Heatwave exposure has increased dramatically because of climate warming and population growth,along with their interactive ***,effective adaptation measures can reduce these ***,the dynamic changes,regional inequality in adaptive capacity and their potential contributions to reducing exposure in the future remain *** study quantifies the impact of adaptive capacity and underscores regional variations in heatwave magnitudes,population exposure and adaptation levels in *** projected the future adaptive capacity using air-conditioner penetration,factoring in climate cooling requirements and individuals'purchasing *** population and gross domestic product(GDP)data from four Shared Socioeconomic Pathways(SSP1,SSP2,SSP3 and SSP5)and daily temperature data from four SSP-based emission scenarios(SSP1-2.6,SSP2-4.5,SSP3-7.0 and SSP5-8.5),we estimated heatwave duration,population exposure and avoided impacts through adaptation across China and its *** show a substantial increase in heatwave duration in Southwest and Southern China,especially under the SSP5-8.5 scenario,with a projection of 163.2±36.7 d during *** the SSP3|SSP3-7.0 scenario,total exposure reaches 156.4±76.8 billion person d per year,which is the highest among all scenarios and 23 times greater than that in 1986-2005 without *** considering adaptation measures,a noteworthy reduction in population exposure is observed,especially in the SSP3|SSP3-7.0 and SSP5JSSP5-8.5 scenarios,with reductions of(62.6±3.9)%and(65.8±5.1)%,respectively,compared with the scenario without adaptation during *** regional disparities in avoided impacts are also evident,with variations of up to 50%across different *** implementation of effective and environmentally friendly adaptation measures can notably address climate change,thereby alleviating the profound threats posed to human well-being.

关键词： Heatwaves Population exposure Adaptation Future projection China

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：