نتایج جستجو برای: slippage control

تعداد نتایج: 1331068  

2015
Tang Xiaoyan

In this paper, we find that with the decrease in the average pore pressure in the process of gas production, both the slippage effect and the stress sensitivity effect will gradually increase; the increase in the slippage effect is significant, while the increase in the stress sensitivity effect is not. In this paper, the Kalamay volcanic gas reservoir of the Junggar Basin in China was selected...

Journal: :Current Opinion in Colloid and Interface Science 2023

We discuss how the wettability of solid walls impacts electrokinetic phenomena, from large systems down to a nanoscale. show in particular could hydrophobic slippage, coupled confinement effects, be exploited induce novel properties, such as salt-dependent giant amplification zeta potential and conductivity, much more efficient energy conversion. However, impact slippage is dramatically reduced...

Journal: :Molecular biology and evolution 2000
S Kruglyak R Durrett M D Schug C F Aquadro

We fit a Markov chain model of microsatellite evolution introduced by Kruglyak et al. to data on all di-, tri-, and tetranucleotide repeats in the yeast genome. Our results suggest that many features of the distribution of abundance and length of microsatellites can be explained by this simple model, which incorporates a competition between slippage events and base pair substitutions, with no n...

2014
Melissa Castillo-Lizardo Ghislaine Henneke Enrique Viguera

Replication slippage or slipped-strand mispairing involves the misalignment of DNA strands during the replication of repeated DNA sequences, and can lead to genetic rearrangements such as microsatellite instability. Here, we show that PolB and PolD replicative DNA polymerases from the archaeal model Pyrococcus abyssi (Pab) slip in vitro during replication of a single-stranded DNA template carry...

2013
X. Yang Y. Shen

We report the first numerical demonstration of the generation of multiple superradiance pulses in a slippage-dominant freeelectron laser amplifier. In this simulation, the 1 and 2 multiple radiation-pulses are created from the deformation of the longitudinal phase space. Our simulation confirmed controllability over the temporal profile of these pulses, and paves the way for applying this techn...

Journal: :Energies 2022

This paper presents the measured energy losses in a draw gear with NE22, XH500, LL2, and CFG flat belts. The ranges of torque capacity, slippage occurrence, transmission efficiency selected drive belts are also presented. Knowing exact values these parameters allows selection most suitable for different applications. In addition, belt manufacturers do not provide data accurately, leading to mac...

Journal: :Ingeniería agrícola y biosistemas 2021

Introduction: Slippage is usually measured with a standard manual method, however, if it required slippage information inline in extensive areas of cropland, mechanical and electronic equipment have to be developed. Objective: To design, assemble evaluate (in laboratory under field conditions) an encoder-based measurement system. Methodology: The system was integrated tested the laboratory, whe...

2012
X. Yang Y. Shen B. Podobedov Y. Hidaka S. Seletskiy X. J. Wang

We report the first experimental demonstration of a slippagedominant superradiant free-electron laser (FEL) using an ultrafast seed-laser pulse. We measured the evolution of the longitudinal phase space in the slippage-dominant superradiant regime. With a roughly 1% variation in the electron beam energy, we observed a seed-like fully longitudinal coherence, and a 2% wavelength shift from the se...

2006
Jianhua Wu Robert L. Williams Jae Lew

We consider the problems of kinematic and dynamic constraints, with actuator saturation and wheel slippage avoidance, for motion planning of a holonomic three-wheeled omni-directional robot. That is, the motion planner must not demand more velocity and acceleration at each time instant than the robot can provide. A new coupled non-linear dynamics model is derived. The novel concepts of Velocity...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
M Chinappi F Gala G Zollo C M Casciola

Hydrophobic coatings, such as octadecyltrichlorosilane or n-alkyl monolayers, enhance the slippage of liquids on solid walls. For a given alkyl chain length, the main structural parameter for homogeneous coatings is the tilt angle between coating molecules and the surface normal. In this paper, ab initio calculations are used to calculate the equilibrium configuration of coating molecules, show...

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