Results 71 to 80 of about 20,734 (265)

A low-cost electronic system for predicting draft and slippage requirements

Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ
A field experiment at the agricultural research station, University of Basrah, Iraq, to investigate tractor performance indicators drawbar pull and slippage using an electronic measurement and prediction system with smart computing programs.
Hussein S. Majeed, Reza Alimardani, Mustafa F. Almoosa, Salim Almaliki, Maher A. Khalid   +4 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Proposal of active-wheel-based finger-tactile interface and its slippage-presenting functions

Nihon Kikai Gakkai ronbunshu, 2017
The objective of this study is to develop a novel finger-tactile interface employing “active wheel”: the wheel is rotated around its central axis, and the central axis is swiveled around in a vertical axis with any speeds and duration times.
Yoshihiko NOMURA, Yoshiaki KASHINO, Satoshi OIKE   +2 more
doaj   +1 more source

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

Net traction of a driven wheel as affected by slippage, velocity and wheel load

Journal of the Saudi Society of Agricultural Sciences, 2015
The objective was to assess the effect of velocity at three levels (i.e. 0.8, 1 and 1.2 m/s), slippage at three levels (i.e. 10, 12 and 15%) and three levels of wheel load (i.e.
Hamid Taghavifar, Aref Mardani
doaj   +1 more source

Combined Effects of Stress, Gas Adsorption, and Temperature on the Evolution of Coal Seam Permeability and Slippage Effect. [PDF]

ACS Omega, 2023
Wang B, Jing H, Zhang Y, Liu X, Tu Q, Song X, Sun Z.   +6 more
europepmc   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Analysis of low permeability gas reservoir fracturing well productivity equation considering multi-factors

Youqicang pingjia yu kaifa, 2018
In order to accurately predict the well capacity in the fracture of the low permeability gas reservoir, it is necessary to consider the multi-factors. The studies show that the relation between the threshold pressure gradient and the average reservoir ...
Yin Peng, Wei Jun, Zhang Zhijun, Wu Dongming, Wu Shenqu, Xu Hao, Xu Liang, Hua Keliang   +7 more
doaj  

Experimental Study on Gas Slippage of Tight Gas Sands in Kirthar Fold Belt Sindh, Pakistan [PDF]

Mehran University Research Journal of Engineering and Technology, 2017
The laboratory experiments on samples from Kirthar fold belt of lower Indus basin Sindh Pakistan were carried out to investigate the effect of gas slippage under varying conditions of pore pressures and overburden stress.
AFTAB AHMEDMAHESAR, ABDUL MAJEED SHAR, KHALIL REHMAN MEMON, HAFEEZ-UR-RAHMAN MEMON, SHAHZAD ALI BALADI   +4 more
doaj  

3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy. [PDF]

Sci Rep, 2021
Panahi M, Jamali R, Rad VF, Khorasani M, Darudi A, Moradi AR.   +5 more
europepmc   +1 more source