Materials Literature
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Fast depletion of fossil fuels demands an urgent need to carryout research to find viable alternative fuels such as Hydrogen, LPG and CNG. The gaseous hydrocarbons seem to be best immediate option presently available. The remarkable feature of gaseous fuels are the absence of mineral impurities, the consistency in qua…
Most components are tempered after heat treatment operations such as case hardening orinduction hardening. The common opinion is that the martensitic structure after heat treatmentis too brittle and tempering is necessary to increase toughness.Tempering is an additional operation which leads to increased costs by ener…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation H. Nishimura, Y. Inubushi, Y. Okano, S. Fujioka, T. Kai, T. Kawamura, D. Batani, A. Morace, R. Re…
The high-pressure die-casting process (HPDC) is extensively used as a commercial process for the production of complex near net shape automotive castings. Owing to the fast and turbulent filling of the liquid metal into the die, air and gas in the die cavity get trapped in the solidifying metal, thus affecting the mec…
The paper proposes a method that permits to synthesize rejecting filters with readjusted parameters in accordance with type-scheme functions. These filters are able to realize any given characteristics.
Indirect systems with aqueous solution used as secondary working fluids (secondary refrigerants or coolants) have long been used making it possible to minimize the charge and leakage of (primary) refrigerant. In ice slurry applications such aqueous solutions are used below the freezing point, benefiting from the entha…
The possible models of the silicon oxide clusters on Si（001） surface, including the regular symmetric structure （A）, the periodic asymmetric structure （B）, the periodic asymmetric structure （C） and the irregular structure （D）, have been fully optimized using the first-principles general gradient approximation method b…
Keywords: superconductivity Reference CRPP-CONF-2009-181 URL: http://eucas2009.ifw-dresden.de/ Record created on 2009-09-10, modified on 2017-05-12
Ce travail de these porte sur la synthese de materiaux a base de pentoxyde de niobium et de nanotubes de carbone pour des applications en limitation optique. L’utilisation croissante de sources laser notamment dans le domaine militaire a rendu necessaire la mise au point d’une protection pour les dispositifs optiques…
Keywords: Dangling bond defects ; Germanium ; Silicon ; hybrid density functional theory ; charge transition levels ; Interface ; Traps Reference CSEA-CONF-2009-006View record in Web of Science Record created on 2009-10-14, modified on 2017-05-12
The paper examines the potential for the indigenous design and manufacture of laboratory equipment used for demonstrating the engineering principles of taught courses in our Engineering Schools. Using the Demonstration Journal Bearing as a case-study it is shown that imaginative modifications to classical design could…
A numerical study is presented where the impact of simultaneous thermal and mechanical loading on a railway wheel tread, as imposed by braking and rolling contact, is reported. A comparison is made of two-dimensional (2D) and 3D finite-element simulations of the thermomechanical problem featuring a material model that…
We produce the results of the experimental researches of solving the problem of acoustic transducer calibration. The following methods are presented in the work-graduation of rocket engine burn through, explosion of the standard charge with the use of air percussive tube, shots of artillery piece
The conference theme was "From Cast-Iron to Green Design: \nA Closer Look at Materials & Craft \nin the Pacific Northwest."
In der Arbeit wurden bekannte Verfahren zur nasschemischen Präparation der H-terminierten Si(111)-Oberfläche und zur Präparation der Si(111)-7x7-Rekonstruktion im Ultrahochvakuum erfolgreich reproduziert. Eine Precursorlösung wurde über die Applikationsmethoden "drop-cast", "dip-coating" und "liquid-injection-precurso…
The investigation on the interaction of superparamagnetic nanoparticles with cell membranes was divided into three phases: the synthesis and characterization of the magnetic and structural properties, surface functionalization of the particles, and ferrofluid studies of the particles in the presence of a slowly varyin…
Different ionic liquids containing the cation such as 1-N-butyl-3-methylimida-zolium (Bmim+) are able to efficiently dissolve cellulose. The ability of ionic liquids to truly dissolve cellulose is ...
This master’s thesis explores how to minimize the long-lived actinide waste that is produced in nuclear power plants by performing simulations of thoriated nuclear fuels in existing reactor designs.\nAn European pressurized water reactor (EPR) assembly fueled with a mixture of thorium and highly enriched uranium (20%…
Glycolysis has been generally accepted to be the source of reducing power used for the synthesis of polyhydroxyalkanoates (PHAs) in the anaerobic metabolism of polyphosphate accumulating organisms (PAOs). However, the tricarboxylic acid cycle (TCA) has also been suggested to contribute to the generation of reducing eq…
УДК 669.04 ТЕПЛОТЕХНИЧЕСКОЕ И ЭКОНОМИЧЕСКОЕ ОБОСНОВАНИЕ ВЫБОРА ОПТИМАЛЬНОЙ ТЕМПЕРАТУРЫ НАГРЕВА ВОЗДУХА В РЕКУПЕРАТОРАХ НАГРЕВАТЕЛЬНЫХ ПРОХОДНЫХ ПЕЧЕЙ МАШИНОСТРОИТЕЛЬНЫХ ПРЕДПРИЯТИЙ Доктора техн.наук, профессора ТИМОШПОЛЬСКИЙ В. И., ТРУСОВА И. А., асп.МЕНДЕЛЕВ Д. В., канд.физ.-мат.наук ГЕРМАН М