Results 81 to 90 of about 945,774 (394)
Advanced Engineering Materials, EarlyView.The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan +4 more
wiley +1 more source
LSS 2018: A double-lined spectroscopic binary central star with an extremely large reflection effect [PDF]
LSS 2018, the central star of the planetry nebulae DS1, was found to be a double-lined spectroscopic binary with a period of 8.571 hours. Light variations with the same period were observed in U, B, and V; in the wavelength regions defined by the two IUE
Drilling, J. S.
core +1 more source
, 2006 The first scientific drilling expedition to the central Arctic Ocean was completed in September 2004. Integrated Ocean Drilling Program Expedition 302, Arctic Coring Expedition (ACEX), recovered sediment cores to 428 meters below seafloor (mbsf) in water
Backman, Jan +2 more
core +2 more sources
Advanced Engineering Materials, EarlyView.Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner +4 more
wiley +1 more source
A Dynamic Model For A Drill In The Drilling Process
, 2008 {"references": ["D. D. Rosard, \"Natural Frequency of Twisted Cantilever Beams,\" in 1952\nPro. ASME Paper No. 52-A-15,", "G. W. Jarrett and P. C. Warner, \"The Vibration of Rotating Tapered Twisted Beam,\" ASME, Journal of Applied Mechanics, pp. 381-389,1953.", "O. Tekinalp and A. G.
Bo Wun Huang +3 more
openaire +1 more source
, 2019 The design of drilling fluids is very important for the drilling operation success. The rheological properties play a key role in the performance of the drilling fluid.
H. Gamal +3 more
semanticscholar +1 more source
Conceptual design of a noncontacting power transfer device for the ASPS Vernier system [PDF]
The conceptual of electrical power transfer across a magnetically controlled gap as discussed for several years. The design represents the culmination of the first serious attempt to design a very low force, noncontracting power transfer mechanism.
Drilling, J., Gunderman, T., Kroeger, J.
core +1 more source
, 2016 Master's Project (M.S.) University of Alaska Fairbanks, 2016This project examines the various drivers that led to the U.S. shale oil revolution in order to predict its place in the energy industry going forward and to analyze its effects on Alaska.
Malin, Michael A.
core
Space weather effects on drilling accuracy in the North Sea [PDF]
, 2005 The oil industry uses geomagnetic field information to aid directional drilling operations when drilling for oil and gas offshore. These operations involve continuous monitoring of the azimuth and inclination of the well path to ensure the target is ...
Allen, W. +6 more
core +5 more sources
Advanced Engineering Materials, EarlyView.This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell +2 more
wiley +1 more source