Results 21 to 30 of about 255,812 (300)

Measures to increase the technical resource of electrical equipment of powerful irrigation pump stations

Известия высших учебных заведений: Проблемы энергетики, 2023
RELEVANCE. At present, unstressed systems for launching high-voltage electric motors have been increasingly used. These systems limit the values of starting currents as well as eliminate alternating oscillations of engine electromagnetic torque.
Sh. T. Dadabaev, E. Yu. Abdullazyanov, E. I. Gracheva   +2 more
doaj   +1 more source

Development of a microfluidic unit for sequencing fluid samples for composition analysis [PDF]

, 2004
A microfluidic sample-sequencing unit was developed as a part of a high-throughput catalyst screening facility. It may find applications wherever a fluid is to be selected for analysis from any one of several sources, such as microreactors operating in ...
Adams, Ehrfeld, J.R. Tippetts, Priestman, R.W.K. Allen, Stone, Tesař, Tesař, Tesař, Tesař, Tesař, Tesař, V. Tesař, Wilkin, Y.Y. Low   +14 more
core   +1 more source

Design and Dynamic Performance Analysis of Eccentric Wheel Pumping Unit

Shiyou jixie, 2020
The guide rod pumping unit with a larger extreme position angle is beneficial to the exploitation of low-yield wells. The rack and pinion shift can make the transmission more stable.
Shao Jun, Hu Guodong, Wang Dewei
doaj  

Combining Background Subtraction and Convolutional Neural Network for Anomaly Detection in Pumping-Unit Surveillance

Algorithms, 2019
Background subtraction plays a fundamental role for anomaly detection in video surveillance, which is able to tell where moving objects are in the video scene.
Tianming Yu, Jianhua Yang, Wei Lu
doaj   +1 more source

Adiabatic spin pumping through a quantum dot with a single orbital level

, 2002
We investigate an adiabatic spin pumping through a quantum dot with a single orbital energy level under the Zeeman effect. Electron pumping is produced by two periodic time dependent parameters, a magnetic field and a difference of the dot-lead coupling ...
A. Kaminski, A. Kaminski, B. Spivak, D. Langreth, D.J. Thouless, E.R. Mucciolo, F. Zhou, H. Pothier, I.L. Aleiner, I.L. Aleiner, J.E. Avron, J.N.H.J. Cremers, J.S. Langer, L.I. Glazman, L.P. Kouwenhoven, M. Büttiker, M. Moskalets, M. Switkes, M.L. Polianski, M.W. Keller, O. Entin-Wohlman, P. Sharma, P.R. Hammar, P.W. Anderson, P.W. Brouwer, P.W. Brouwer, R. Fiederling, S.H. Simon, T.A. Shutenko, T.K. Ng, Tomosuke Aono, W.Y. Lee, Y. Levinson, Y. Ohno, Yadong Wei   +34 more
core   +1 more source

Stochastic pumping of heat: Approaching the Carnot efficiency

, 2008
Random noise can generate a unidirectional heat current across asymmetric nano objects in the absence (or against) a temperature gradient. We present a minimal model for a molecular-level stochastic heat pump that may operate arbitrarily close to the ...
Dvira Segal, V. P. Carey
core   +1 more source

Active Membrane Fluctuations Studied by Micropipet Aspiration [PDF]

, 2001
We present a detailed analysis of the micropipet experiments recently reported in J-B. Manneville et al., Phys. Rev. Lett. 82, 4356--4359 (1999), including a derivation of the expected behaviour of the membrane tension as a function of the areal strain ...
A. N. Radionov, A. Royant, A.G. Petrov, D. Oesterhelt, E. Boroske, E. Evans, E. Evans, E. Pebay-Peyroula, F. Dumas, F. Faucon, F. Maingret, F. Maingret, G. Niggemann, H. J. Sass, H. Luecke, H. Luecke, J-B. Manneville, J. Heberle, J. Heberle, J. K. Lanyi, J. Prost, J. Prost, J. Prost, J.-B. Manneville, J.-L. Rigaud, M. Bloom, M. Bloom, M. I. Angelova, M. Jansen, M. Kummrow, M. M. Speretto, M. Seigneuret, M. Seigneuret, N. A. Dencher, O. G. Mouritsen, P. Bassereau, P. Méléard, Ph. Méléard, R. Henderson, R. Kwok, R. Lawaczeck, R. Lipowsky, S. Ramaswamy, S. Ramaswamy, S. Ramaswamy, S. Subramaniam, S. Subramaniam, T. Kouyama, U. Haupts, W. Helfrich, W. Kuhlbrandt, Y. Cao, Y. Kimura   +52 more
core   +2 more sources

Low-cost, portable fire hose tester [PDF]

, 1975
Availability of pumping unit permits scheduling and performing required periodic hose tests in proper manner while retaining full fire equipment readiness.
Jocke, R. F., Miller, R. E.
core   +1 more source

Improving the Beam-Balanced Pumping Unit

Bulletin of Kalashnikov ISTU, 2019
Описана усовершенствованная телескопическая конструкция головки с балансиром, электродвигателем c дистанционным управлением, возможностью менять длину плеча балансира для подготовки привода штанговой скважинной насосной установки (ШСНУ) к проведению оперативного ремонта скважин с минимальным участием человека.
A.V. Volokhin, E.A. Volokhin, D.V. Arsibekov   +2 more
openaire   +2 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source