Controlled clockwise and counterclockwise rotation of a molecular motor
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Effects of the local resonance in periodic reticulated materials
Numerous materials and structures of various sizes can be considered as periodic reticulated (or cellular) systems, that is to say they are obtained by repeating a unit cell made up of interconnected beams (or plates). As beams are much stiffer in tension-compression than in bending, the propagation of compressional w…
Melt-processing, structure and properties of thermoplastic starch: Effect of storage time and plasticizers on the structural stability
International audience
Cleansing and Dismantling of CEA-Saclay Nuclear Licensed Facilities
This summary presents the cleansing and dismantling operations currently realized on the CEA center of Saclay (CEA-Saclay). It was initiated at the beginning of the 2000 years a cleansing and dismantling program of the old Nuclear Licensed Facilities (NLF). Currently this program relates the dismantling operations to…
How an Integrated Change Programme Has Accelerated the Reduction in High Hazard Nuclear Facilities at Sellafield
For over five decades the Sellafield Site has been central to the UK’s nuclear programme. Now operated by Sellafield Ltd, under the management of Parent Body Organisation Nuclear Management Partners (NMP), a consortium of URS Washington Division, AMEC and AREVA is focussed on the decommissioning of historical faciliti…
Uma experiência de corrosão metálica em meio ácido
In this paper it is proposed a method to characterize the corrosion reactions of many metals and alloys in acid media and to evaluate the corrosion rate. An alloy of aluminum and zinc was partially dissolved in HCl solution and the medium acidity decrease was monitored at different time intervals by using a pHmeter. D…
DEVICE PROVIDING THE RIGIDITY OF THE INSTRUMENTAL SYSTEM DURING FORMING THROUGH THE PLANETARY GEAR
В статье рассмотрено устройство для формообразования профильной части пружин железнодорожного транспорта посредством планетарных движений режущих кромок инструмента. Предложен способ обеспечения осевой жесткости металлорежущего инструмента.
A NEW TECHNOLOGY OF THERMO-EFFECTIVE WALL BLOCKS FROM COMPOSITE POLYSTYRENE GAS CONCRETE
С целью повышения термического сопротивления ограждающих конструкций зданий предложена технология многослойных стеновых блоков из композиционного материала на основе газобетона и пенополистирола. Приведены результаты лабораторных и опытно-промышленных испытаний, рекомендации по практической реализации.
Could drawn steel surface analysis in contact with saline solution by Electrochemical Atomic Force Microscopy
Trabajo presentado en el European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2013), celebrado en Sevilla (Espana), del 8 al 13 de septiembre de 2013
Microstructure and High Temperature Strength of ODS Fe-Al-Cr Intermetallics
Trabajo presentado en EUROMAT 2013 (European Congress and Exhibition on Advanced Materials and Processes), celebrado en Sevilla (España), del 8al 13 de septiembre de 2013
Polycyclic aromatic hydrocarbon-based nanovehicles equipped with triptycene and subphthalocyanine bowl-shaped wheels
International audience
Observation of fluid flow and solidification during GTA welding
International audience
酶敏感型聚乙二醇水凝胶联合去细胞瓣制备复合支架
高分子材料聚乙二醇(PEG)具有高亲水性、生物相容性好和自身免疫原性低等优点,在组织工程心脏瓣膜(TEHV)领域应用广泛[1].新型复合PEG水凝胶,利用种子细胞分泌蛋白酶,尤其是基质金属蛋白酶(MMPs),促进支架携带的活性分子释放,调控组织生长微环境,具备生物智能特征,适合TEHV的构建[2].我们利用4分支状PEG和MMPs底物肽制备复合PEG水凝胶,与去细胞猪主动脉瓣结合构建复合支架,并检测相关生物学性能。
Reduction of graphite lamella size in grey cast iron: impact on the friction and damage mechanisms activated during braking
International audience
Theoretical study of hyperconjugative interactions effects on the conformational stability of unsaturated decalactones
Univ Fed Sao Paulo, Dept Exact & Earth Sci, BR-09972270 Sao Paulo, Brazil
Long-term aqueous alteration kinetics of A 99Tc-doped SON68 borosilicate glass
Fission products and minor actinides are currently immobilized by vitrification in a borosilicate glass known as 'R7T7'. One of the major functions of the glass matrix is to retain the radioactive elements in the event of water intrusion in the geological disposal, expected after several thousand years. The alteration…
Avaliação da corrosão em chapas de aço carbono com e sem revestimento organometálico, em contato com os sistemas gasolina/etanol e diesel/biodiesel
Os estudos relacionados a corrosao de tanques automotivos tem grande importância, pois visam a obtencao de um produto de qualidade que cause danos minimos ao meio ambiente. O objetivo desse trabalho foi avaliar a resistencia a corrosao, em misturas de gasolina/etanol nas proporcoes de etanol (E) de E0, E20, E50, E75 e…
CuO on CeO2 (001), a more selective catalyst for CO preferential oxidation: fundamental DFT modeling and experimental data
Trabajo presentado en EUROMAT: European Congress and Exhibition on advanced materials and processes, celebrado en Sevilla (Espana) del 8 al 13 de septiembre de 2013.
Chiral recognition mechanisms: How to see them simply?
International audience
Ni/CeO2: A promising catalyst for water-gas shift
Hydrogen appears to be the best answer for the limited fossil fuel resources. The water-gas shift (WGS) reaction is a key step in the production of clean hydrogen. Noble metal (Au, Pd, Pt) clusters supported on reducible oxides have emerged as a potentially new generation of WGS catalysts. The substitution of the nobl…