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PITTING OF TOOTH FLANKS OF CROSSED HELICAL GEARS MADE OF SINTERED STEEL

Đorđe Miltenović、Milan Tica、Aleksandar Miltenović 等 6 位作者2014-01-01MACHINERY - Repository of the Faculty of Mechanical Engineering (University of Belgrade)

Crossed helical gears are used in cars and in many household appliances.The trend towards increased comfort in motor vehicles has led to the utilisation of more than a hundred servo-drives in luxury class automobiles.Important advantages of crossed helical gears are their easy and inexpensive design, low noise perform…

Material Properties and ApplicationsMetallurgy and Material FormingEngineering Technology and Methodologies

Proceedings of 14th European Mechanics of Materials Conference - EMMC14

Ragnar Larsson2014-01-01Chalmers Research (Chalmers University of Technology)

This volume contains the abstracts presented at the 14th European Mechanics of Materials Conference (EMMC14), held at Chalmers, Göteborg, Sweden, on September 27-29, 2014. The ever increasing development of new engineering materials required to meet advanced technological needs poses new challenges in the field of mec…

Aluminum Alloys Composites PropertiesAdvanced ceramic materials synthesis

Steroidal saponins from the roots of Dracaena marginata tam

Neveen S. Ghaly、Marian Nabil、Toshio Miyase 等 4 位作者2014-01-01Der pharmacia lettre

A phytochemical investigation on the roots of Dracaena marginata yielded nine steroidal saponins. Six of the saponins were isolated as three pairs of 22-hydroxy furostanol saponins and their 22-methoxy derivatives including two new minors identified as 26-O-β-D-glucopyranosyl-22α-hydroxy-(25R)-furost-5- en-3β, 26- dio…

Phytochemistry and Bioactive CompoundsNatural product bioactivities and synthesisPhytochemical Studies and Bioactivities

Certification report - The certification of the gold mass fraction in Al-0.1%Au alloy: ERM®-EB530A, B and C

Bacquart Thomas、M André、L. K. Thomas2014-01-01Joint Research Centre (European Commission)

This report describes the production of ERM®-EB530A, B and C, aluminium gold alloy material certified for the mass fraction of gold. The material was produced following ISO Guide 34:2009.\nPure aluminium and pure gold were arc melted together to obtain a master alloy Al-5%Au (mass percent). The master alloy was melted…

Electron and X-Ray Spectroscopy TechniquesAdvanced Materials Characterization Techniques

Determination of radium equivalent activity from natural occurring radionuclide around a superphosphate fertilizer factory in Nigeria

A O Taiwo、D.J. Adeyemo、Y.V. Ibrahim 等 4 位作者2014-01-01Archives of applied science research

Man is continuously being exposed to radiation due to its presence everywhere on earth. This study is aimed at determining the radium equivalent activity from the soil samples collected from different locations around a superphosphate fertilizer factory in Nigeria. An efficiency and Energy calibrated high purity germa…

Nuclear Physics and ApplicationsGraphite, nuclear technology, radiation studiesRadioactivity and Radon Measurements

The Influence of Microstructure on the Corrosion of Magnesium Alloys

R. Matthew Asmussen2014-01-01Scholarship@Western (Western University)

The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation…

Aluminum Alloy Microstructure PropertiesMaterial Properties and ApplicationsMagnesium Alloys: Properties and Applications

Simultaneous placement of an interpositional free gingival graft with nonsubmerged implant placement

Joo-Yeon Sohn、Jung‐Chul Park、Kyoo‐Sung Cho 等 4 位作者2014-01-01OpenAlex

Purpose: Various surgical techniques target achieving adequate keratinized tissue around dental implants; however, these techniques are usually performed before implant placement or upon the exposure of submerged implants. The aim of this case report is to describe a simultaneous placement of an interpositional free g…

Periodontal Regeneration and TreatmentsDental Implant Techniques and OutcomesElectrospun Nanofibers in Biomedical Applications

Size Effect in Bending Strength of Sugi Timber

Hirofumi Nagao、Hirofumi Ido、Hideo Kato 等 5 位作者2014-01-01木材学会誌

製材の強度に寸法効果が存在することは国際的にも知られているが,我が国の軸組構法の構造部材として使用される構造用製材の規格に寸法調整係数は採用されていない。そこで,スギ製材の曲げ強度に対する寸法効果を明らかにするため,丸太からサイドマッチング及びエンドマッチングによって試験体を採取し,曲げ強度に及ぼす材せい及び材幅の影響について検討した。材せいの影響は,材幅を140mmに一定として材せいを300mm,170mm,105mmの3種類について,材幅の影響は材せいを150mmに一定として材幅を150mm,105mmの2種類について,それぞれ標準試験条件によって曲げ試験を実施した。その結果,曲げ強度の平均値は材せいの減少にしたがって増加する…

Natural Fiber Reinforced CompositesWood Treatment and PropertiesBamboo properties and applications

Improving the Mechanical Strength and Power Conversion Efficiency of High Temperature Thermoelectrics

James Minh2014-01-01OpenAlex

Author(s): Ma, James Minh | Advisor(s): Kaner, Richard B | Abstract: Thermoelectrics are solid state energy conversion materials which are able to generate power through the Seebeck effect or provide cooling through the Peltier effect. Thermoelectric generators have consistently demonstrated their extraordinary reliab…

Spacecraft and Cryogenic TechnologiesAdvanced Thermoelectric Materials and Devices

Modeling and Simulation of the Drying of Beech Timber (Fagus sylvatica)Using Oscillating Regimes

Merlin Simo Tagne、Yann Rogaume、André Zoulalian2014-01-01International Journal of Thermal and Environmental Engineering

This paper represents a numerical study of the massive (60mm) and thin (38mm) wood drying using oscillating drying regimes applied on beech timber (Fagus sylvatica). All thermo-physical properties relative of studied wood are taken from the literature on appropriate experiments. We showed that Luikov’s model can be us…

Tree Root and Stability StudiesTextile materials and evaluationsWood Treatment and Properties

Natural fiber composites with low thermal conductivity

Hitoshi Takagi、Antonio Norio Nakagaito、Ke Liu2014-01-01OpenAlex

This paper describes thermal insulation property of natural fiber-reinforced composites. A thermal insulation property of structural materials is one of the most important issues for creating high energy efficient products. The thermal functionality of natural fiber is mainly derived from its inherent physical and che…

Thermal properties of materialsNatural Fiber Reinforced Composites

Application of flame retardant microcapsules to polyester and cotton fabrics

Barbara Jeršek、Boštjan Šumiga、Bojana Boh 等 6 位作者2014-01-01Repository of the University of Ljubljana (University of Ljubljana)

A microcapsulated fire retardant was used with the intention to produce fire retardant textiles. Melamine-formaldehyde polymer-wall microcapsules with triphenyl phosphate core were applied both a cotton woven and a polyester nonwoven fabric using impregnation and screen printing. The samples were observed with a scann…

Flame retardant materials and properties

Corium formation from reactor components and how its properties affect later stages of a severe nuclear accident.

BOTTOMLEY Paul、Rondinella Vincenzo、D. Papaioannou 等 8 位作者2014-01-01Joint Research Centre (European Commission)

The early stages of a severe accident are characterised by a loss of cooling capability in the reactor core and subsequent rise in temperature of the fuel & cladding to well in excess of typical operating temperatures. This results in various interactions and reactions between the UO2 fuel, Zircaloy cladding, moderato…

Nuclear reactor physics and engineeringNuclear and radioactivity studiesNuclear Materials and Properties

Investigation of a Damage Tolerant Joining Technology for Lightweight Structures

Nogueira da Silva、Ana Carolina2014-01-01OpenAlex

To improve the performance for carbon fiber reinforced plastics (CFRP), an innovative joining technology integrating metallic pins into composite structures was investigated in the present work. Through an established mechanical interlocking, a significant improvement of the out-of-plane properties of CFRP was achieve…

Natural Fiber Reinforced CompositesMechanical Behavior of CompositesFiber-reinforced polymer composites

Structural characterization and oxide ionic conductivity of new silicate oxyapatite La9.13Bi0.2(SiO4)6O2

Mohamed Ammar Abbassi、Riadh Ternane、Malika Trabelsl-Ayadi 等 4 位作者2014-01-01Physical chemistry : an Indian journal

New bismuth oxyapatite La9.13Bi0.2(SiO4)6O2 has prepared by the solidstate reaction. X-ray diffraction, FTIR spectroscopy, Raman scattering spectroscopy and SEM-EDS techniques have been used in the characterization of this sample. The average crystalline size has been calculated using the Scherrer formula and it is fo…

Ionic liquids properties and applicationsInorganic Chemistry and MaterialsAdvancements in Solid Oxide Fuel Cells

Wear Resistant Polydopamine/PTFE Nanoparticle Composite Coating for Dry Lubrication Applications

Samuel Beckford2014-01-01Journal of the Arkansas Academy of Science

This dissertation presents an investigation into the effect of nanoparticle fillers and a polydopamine adhesive primer on the tribological performance of thin PTFE films. The principal objective of this investigation was to reduce wear in PTFE films, an issue which precludes the use of PTFE films in tribological appli…

Synthesis and properties of polymersLubricants and Their AdditivesTribology and Wear Analysis

A facile and green synthesis of CuO nanowires by mechanochemical method

Azadeh Tadjarodi、Reza Roshani、Mohammad Moslem Imani2014-01-01ChemXpress

We report the synthesis of copper oxide nanowires via a facilemechanochemical technique followed by low thermal treatment. The precursors of copper acetatemonohydrate and acetamidewere employed to growthis one dimensionalmorphology.The scanning electronmicroscopyimages (SEM) revealed the formation of desiredNWswith a…

Copper-based nanomaterials and applicationsZnO doping and properties

Analysis of glass fibre sizing

Helga Nørgaard Petersen、Yukihiro Kusano、Povl Brøndsted 等 4 位作者2014-01-01Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU)

Glass fibre reinforced polymer composites are widely used for industrial and engineering applications which include construction, aerospace, automotive and wind energy industry.During the manufacturing glass fibres, they are surface-treated with an aqueous solution.This process and the treated surfaces are called sizi…

Textile materials and evaluations