Results 111 to 120 of about 229,036 (285)

Characterization of Combustion Chamber Deposits Formed During Homogeneous Charge Compression Ignition and the Impact of a Thermal Barrier Coating on Deposit Accumulation and HCCI Operability. [PDF]

, 2012
Combustion chamber deposits, CCD, have been shown to influence the operational range of homogeneous charge compression ignition, HCCI. CCD insulate the combustion chamber during the intake and compression strokes, preserving enough charge temperature to ...
Hoffman, Mark A.
core  

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

A study of drift chamber ageing with propane

, 1989
Wire ageing effects observed in the ARGUS drift chamber are described, as well as results of laboratory studies of ageing in a small test chamber. The tests were performed under realistic conditions with small anode currents of about 14 nA.
Michel, E., Nagovitsin, V., Danilov, M., Tichomirov, I., Shibaev, V., Schmidt-Parzefall, W.   +5 more
core   +1 more source

Quantitative and qualitative study of airborne radioactive particles in the safety chamber of Tehran Research Reactor

Salāmat-i kār-i Īrān, 2013
Background and Aims : Many systems and processes can cause the introduction of radioactivity into the environment. Human activities in nuclear industry such as nuclear fuel cycle and reactor operation, lead to a significant production and release of ...
R yarahmadi, G.R Moradi, asghar sadighzadeh, B Rezaeifard, ali asghar farshad, shahnaz bakand, bahram salimi   +6 more
doaj  

Magma mass increase under Sakurajima Volcano, Japan, inferred from campaign relative gravity and leveling data from 1975 to 1992: an interpretation from volcanic gas studies

Earth, Planets and Space
Temporal variations of volume and mass in the magma chambers of Sakurajima Volcano were modeled using leveling and relative gravity data collected around the volcano during the eruptive period from 1975 to 1992, to reveal a physical mechanism for the ...
Ryo Oyanagi, Takahito Kazama, Ryunosuke Kazahaya, Isoji Miyagi, Keigo Yamamoto, Masato Iguchi   +5 more
doaj   +1 more source

Correction of the radon exhalation rate using the Kalman filtering to reduce measurement errors

Nuclear Engineering and Technology
The RAD7 detector is widely used for measuring the radon exhalation rate from the surfaces of media such as soil, rocks, and building materials. However, during the measurement process, the accuracy of the results is prone to interference due to the ...
Haoyu You, Jianfeng Tang, Zhongkai Fan, Ruomei Xie, Hongzhi Yuan, Yanliang Tan   +5 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Glomalin production and accumulation in soilless pot cultures

, 2010
This study was designed to determine how glomalin production relates to accumulation in three sequential greenhouse culturing periods using a soilless potting medium.
K.A. Nichols
core   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

Magma Accumulation Beneath Santorini Volcano from P-Wave Tomography [PDF]

, 2019
Despite multidisciplinary evidence for crustal magma accumulation below Santorini Volcano, the structure of the shallow magmatic system remains elusive.
McVey, Brennah
core