Materials Literature
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Phase I wear testing was previously conducted to evaluate the effects of hydrogen atmospheres on wear behavior of stainless steel materials. A Phase II wear testing campaign was run to investigate 1) effects of hydrogen pre-charge and increased load and 2) impact of surface coatings on wear behavior.
En los paises del antiguo bloque sovietico la energia nuclear se asocia a la idea de progreso y bienestar, y el prestigio de la industria nuclear es muy alto. Este articulo enmarca el uso de la tecnologia nuclear para la generacion de energia en la perspectiva historica particular de aquellos paises y, analizando los…
Comprendere come la struttura di uno scaffold influenzi la morfologia cellulare e predirne il comportamento meccanico sono divenuti obiettivi fondamentali nello sviluppo dei tessuti ingegnerizzati. In questo studio si presenta un algoritmo innovativo basato su analisi d’immagine. Vengono introdotti descrittori di micr…
Liquid foams are viscoelastic liquids, exhibiting a fast relaxation attributed to local bubble motions and a slow response due to structural evolution of the intrinsically unstable system. In this work, these processes are examined in unique organic foams that differ from the typically investigated aqueous systems in…
The work entitled “Formulation and Evaluation of Diltiazem hydrochloride Microspheres for Oral Controlled Release Drug Delivery using Poly (e-caprolactone)” was formulated and evaluated. The study can be concluded that from the investigations a proper selection of formulation parameters are important to achieve the de…
International audience
In 2010 life test of three LEU (19.7%) lead test assemblies (LTA) is expected in the existing WWR-K reactor core with regular WWR-C-type fuel assemblies and a smaller core with a beryllium insert. Preliminary analysis of test safety is to be carried out. It implies reconstruction of the reactor core history for last t…
Ici, sont abordés des exemples concrets d’application des systèmes de peinture anticorrosion. Ils sont répartis en cinq familles : le rail (TGV Duplex) ; l’ automobile ; l’ industrie ; les aciers galvanisés ; la marine marchande . Ce dossier fait suite à une série d’articles [M 1505], [M 1506]
Graphene can be turned into complex structures by simply placing nanodroplets of water on its surface, say researchers from the University of Illinois at Chicago [Patra et al., Nano Lett. (2009) 9, 3767]. Graphene recently became the focus of many research projects because of its excellent electronic properties. Howev…
This paper presents an international comparison of ac-dc current transfer measurements at 10 mA and frequencies up to 1 MHz between four national metrology institutes: NMIA (Australia), PTB (German...
The band structure, 'diversity of structure and various band gaps have been calculated using ab initio density functional theory (DFT) for some interlayer structures consisting of Fe and Cr atoms, viz. (a) Fe-Cr, (b) Fe-Fe-Cr-Cr and (c) Fe-Fe- Cr-Cr-Fe-Fe-Cr-Cr. Calculations have been done for spinpolarized as well as…
Abstrak : Salah satu upaya pencegahan korosi pada logam dapat dilakukan dengan penambahan inhibitor ke dalam larutan uji. Inhibitor korosi yang dicoba adalah benzotriazol (BTAH) dan sistein (Cys). Penentuan laju korosi Cu-37Zn tanpa dan dengan adanya inhibitor korosi dilakukan secara elektrokimia dengan menggunakan te…
Emission parameters and coefficients of reflection of heat electrons from tungsten thermo cathodes were investigated under nontraditional for emission electronic conditions, when the surface contacts with highly ionized plasma. For measurements plasma diode electron current-magnetic field strength relations were used.…
The appearance of great pulling electric fields at anodic bonding process with a conductor surface to ionic dielectric turns out to be possible due to the interlayer polarization developing in dielectric under the action of electric voltage. This results in a negative charge accumulation in a layer of small thickness…
The problems associated with low efficiency in tensile strength of structural elements, brittle mode of failure, rapid crack propagation and increased overload are common in the concrete construction industry. Whereas ordinary steel reinforced concrete is the most popular mechanism developed so far to alleviate such p…
First Uranium Corporation appears to be facing a number of challenges including problems with the granting of environmental approval (EA) for its new tailings storage facility (TSF) at Buffelsfontein near Klerksdorp. The withdrawal of the EA has delayed construction as well as disrupted certain well-advanced corporate…
The purpose of this research was to evaluate the resistance of binderless particleboard on subterranean termite attack. Material used in this study were andong bamboo (Gigantochloa pseudoarundinaceae) and three Species of wood community forest namely, Sengon (Paraserianthes falcataria), Gmelina (Gmelina arborea) and M…
③ 2004 年の改正 EEG は、太陽光発電からの電力の買取価格を大幅に引き上げた(表 1) 。建 物設置の買取価格は、出力 30kW までが家庭用電力価格の約 3 倍になった(図 1) 。2004 年の法 改正以後、太陽光発電の設置費用(初期投資額)は、約 10 年程度で回収できるようになった。
This study aims to display the retention of the thermo-responsive properties of the copolymer poly(N-isopropyl acrylamide-methyl methacrylate) [P(NIPAM/MMA)] when coated on the inner diameter of a glass capillary tube, and to prove the stability of the copolymer coating when subjected to pressure driven fluid flow. Th…
We report the measured sensitivities of a superconducting NbN hot electron bolometer (HEB) heterodyne receiver at 5.25 THz. The terahertz (THz) radiation is quasioptically coupled to the HEB mixer with a lens and a spiral antenna. Using a measurement setup with black body calibration sources and a beam splitter in vac…