Results 111 to 120 of about 2,507,328 (341)

Analysis of production and potential utilization as electricity methane gas air dingin landfill

, 2023
Dedy Aulya Pratama, Slamet Raharjo, Rizki Aziz   +2 more
openalex   +2 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Micro characteristics and formation mechanism of low-quality gas reservoirs in Taiyuan Formation of Shenmu Gas Field, Ordos Basin

Shiyou shiyan dizhi
Shenmu Gas Field in Ordos Basin shows the characteristics of low quality gas reservoir, and its deve-lopment effect is quite different from that of surrounding gas fields, which brings some problems to the exploration deployment and sustainable ...
Tao ZHANG, Xiaoke GONG, Chao HUANG, Qingyun CAO, Fengming MENG, Zhanmin DONG, Zhaobing CHEN, Hengli WANG   +7 more
doaj   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

High-Fidelity Weak Signal Extraction for Coiled Tubing Acoustic Telemetry via Micro-Lever Suspension and Joint Denoising

Sensors
In Coiled Tubing (CT) acoustic telemetry, the reliability of surface signal reception is severely challenged by the “contact dead zone” of traditional probes and complex nonstationary environmental noise.
Yingjian Xie, Hao Geng, Zhihao Wang, Haojie Xu, Hu Han, Dong Yang   +5 more
doaj   +1 more source

Consequences of agro-biofuel production for greenhouse gas emissions [PDF]

, 2008
The objective of the study was to examine the effect on N2O and CH4 emissions when residues from bio-energy production are recycling as organic fertilizer for a maize energy crop.
Ambus, Per, Carter, Mette S., Haugaard-Nielsen, Henrik, Johansen, Anders   +3 more
core  

The tails in the Helix Nebula NGC 7293

, 2006
We have examined a stream-source model for the production of the cometary tails observed in the Helix Nebula NGC 7293 in which a transonic or moderately supersonic stream of ionized gas overruns a source of ionized gas.
Cantó, Cerruti-Sola, Diamond, Dyson, Dyson, Dyson, Falle, Hartquist, Henry, Huggins, J. E. Dyson, J. M. Pittard, J. Meaburn, Lefloch, López-Martin, Meaburn, Meaburn, Meaburn, Meaburn, Meaburn, Meixner, Mellema, ODell, ODell, ODell, ODell, ODell, Patriarchi, Pavlakis, Pittard, Rijkhorst, S. A. E. G. Falle, Van Blerkom   +32 more
core   +2 more sources

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Real-time prediction of ROP based on GRU-Informer

Scientific Reports
Accurate ROP (rate of penetration) prediction contributes to better production task planning, ensuring efficient production line operation, and reducing production costs.
Bingrui Tu, Kai Bai, Ce Zhan, Wanxing Zhang   +3 more
doaj   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source