检索结果-南通市图书馆

journal of Environmental Sciences 2018年第7期30卷 77-84页

作者： Santosh Kumar Mohmmad Y.Wani joonseok Koh joao M.Gil abilio j.f.n.sobral Chemistry Center Department of ChemistryUniversity of CoimbraCoimbra 3004-535Portugal Department of Organic and nano System Engineering Konkuk UniversitySeoul 143-701Republic of Korea CfisUC Department of PhysicsUniversity of CoimbraCoimbra 3004-516Portugal

One of today＇s major challenges is to provide green materials for a cleaner environment. We have conducted studies on carbon dioxide（CO2） adsorption and conversion to valuable products by an ecofriendly approach based in chitosan/graphene oxide（CSGO） nanocomposite film. Rheological behavior indicates that the CSGO has a better solvation property than the pure chitosan. An adsorption capacity of 1.0152 mmol CO2/g of CSGO nanocomposite at4.6 bar was observed. The catalytic behavior of the CSGO nanocomposite in the presence of tetra-n-butylammonium iodide（n-Bu4 nI） as co-catalyst was evaluated for the cycloaddition of CO2 to epoxides, to give cyclic carbonates, in the absence of any solvent. These results strongly suggest that the CSGO nanocomposite may open new vistas towards the development of ecofriendly material for catalytic conversion and adsorption of CO2 on industrial scale.

关键词： Chitosan Graphene oxide Adsorption Conversion Carbon dioxide

维普期刊数据库

AML-90“戴胜鸟”虽不是一台真正的坦克，但同样致命

在线全文

学校读者我要写书评

暂无评论

模型世界 2021年第10期1卷 4-17页

作者： abilio Pi?eiro Grajera

AML-90是一种装有90毫米超大口径火炮的炮塔式轮式装甲车,原产地为法国,于1960年首次贩售至国外。这笔交易开创了法国向特拉维夫出售武器的新纪元,并进一步巩固了"潘哈德"装甲车在出口市场上的成功。

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

改善处方药的用药依从性

英国医学杂志中文版 2009年第6期12卷 328-329页

作者：赛晓勇(译) 孙冬玲(译) 何耀(校) abilio C de Almeida neto Paisa Aslani Timothy f chen 解放军总医院老年科 faculty of Pharmacy University of Sydney NSW 2006 Australia

处方药的用药依从性不佳可导致治疗失败、死亡和增加医疗成本。以往的改善用药依从性的方法收效甚微，故挑战仍存在。

关键词：用药依从性处方药治疗失败医疗成本

fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

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

Engineering 2017年第6期3卷 795-805页

作者： jose Antonio fonseca de Oliveira Correia Bruno Alexandre Silva Pedrosa Patricia Cordeiro Raposo abilio Manuel Pinho De jesus Helena Maria dos Santos Gervisio Grzegorz Stanislaw Lesiukc Carlos Alberto da Silva Rebelo Rui Artur Bartolo Calcada Luis Alberto Proenca Simoes da Silva faculty of Engineering University of Porto Porto 4200-465 Portugal Institute for Sustainability and Innovation in Structural Engineering (ISISE) Department of Civil Engineering University of Coimbra Coimbra 3030-788 Portugal Department of Mechanics Materials Science and Engineering Faculty of Mechanical Engineering Wroclaw University of Technology Wroctaw 50-370 Poland

Different strategies can be used to perform reparations and reinforcements of ancient bolted and riveted metallic bridges. As the riveting process is not currently a common practice, it requires proper equipment and skilled workers. Another solution is the use of welding. However, the weldability of old steels is poor. Bolts are very attractive alternative solutions, and are most commonly used to repair old metallic bridges. fitted bolts are expensive solutions; the alternative is the use of resin-injected bolts. The behavior of bolted joints with preloaded resin-injected bolts has been studied using quasi-static and creep tests; however, few studies on the slip and fatigue behavior of these joints can be found in the literature. This paper presents an overview of a few experimental programs that were carried out by several authors aiming at evaluating the fatigue behavior of single and double shear resin-injected bolted connections. A comparison between the experimental data of joints with preloaded standard bolts and preloaded resin- injected bolts shows a fatigue strength reduction in the latter. Since Eurocode 3 （EC3） suggests the same fatigue strength curve for joints made of resin-injected bolts and standard bolts, this may raise some con- cerns. furthermore, research on the feasibility of using both bonded and bolted connections is shown. This last study was performed with high-strength low-alloy structural steel plates and an acrylic struc- tural adhesive for metal bonding. for both case studies, a statistical analysis is performed on fatigue experimental data using linearized boundaries and the Castillo and fernandez-Canteli model. fatigue design curves are proposed and compared with the design suggestions of several European and north American standards,

关键词： fatigue Connections Structural reinforcements Structural adhesives S-n curves Resin-injected bolts

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

法国喷气战斗

模型世界 2021年第8期 3-3页

作者： Daniel Zamarbide Suárez abilio Pi?eiro Maciej Goralczyk

"Bienvenue dans un nouveau titre ACES HIGH"(法语,欢迎来到新一期的《ACES HIGH》。)没有什么比用法语来欢迎各位进入本期专题更棒的了,这期将会介绍一系列法国喷气式飞机,它们在过去的70年中创造了属于自己的空战传奇。法国是第二... 详细信息

"Bienvenue dans un nouveau titre ACES HIGH"(法语,欢迎来到新一期的《ACES HIGH》。)没有什么比用法语来欢迎各位进入本期专题更棒的了,这期将会介绍一系列法国喷气式飞机,它们在过去的70年中创造了属于自己的空战传奇。法国是第二次世界大战的战胜国之一,战后他们决定从过去的错误中吸取教训,自己走在设计和研制新型武器的前列,

关键词：法国法兰西共和国法语法文