Results 11 to 20 of about 1,670,401 (308)
The Use of Orifices to Control the Flow Rate of Gases
The Journal of Applied Ecology, 1979 (1) The flow rates of gases, at constant volume, that are commonly used in studies of photosynthesis, respiration and transpiration, can be obtained by using small orifices that are commercially available. (2) When the ratio of the absolute pressure downstream of the orifice to that upstream of the orifice is less than 0-47 (the critical pressure ratio)
Parkinson, K. J., Day, W.
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Controlling Capillary Flow Rate on Lateral Flow Test Substrates by Tape [PDF]
Micromachines, 2021 Controlling capillary flow rate of sample liquid is of high interest for lateral flow tests, since the flow rate can affect the dissolution and mixing of the immunoreagents and the efficiency of immunoreactions. Here we develop a facile method to adjust the capillary flow rate on lateral flow test substrates by using tape to cover the surface of ...
Zhiqing Xiao +3 more
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Control of Flow Rate in Pipeline Using PID Controller [PDF]
2019 IEEE 16th International Conference on Networking, Sensing and Control (ICNSC), 2019 In this paper a PID controller is utilized in order to control the flow rate of the heavy-oil in pipelines by controlling the vibration in motor-pump. A torsional actuator is placed on the motor-pump in order to control the vibration on motor and consequently controlling the flow rates in pipelines.
Raheleh Jafari +3 more
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Design and implementation of PID based flow rate control using PLC
Mehran University Research Journal of Engineering and Technology, 2023 Industrial systems require efficient techniques to observe the stable operation of various industrial processes and to achieve optimal control. Considering the importance of industrial processes, Proportional Integral and Derivative (PID), Adaptive PID ...
Muhammad Zakir Shaikh +5 more
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Rate based flow control with bandwidth information [PDF]
European Transactions on Telecommunications, 1997 AbstractThe ATM Forum has chosen the rate‐based approach for flow control ofABR(Available Bit Rate) traffic in ATM. It is based on a reactive approach whereby the transmission rate ofABRsources can be adapted to the available bandwidth at a bottleneck link. The ATM forum has specified the behavior of the source and destination, as well as the manner in
Ait-Hellal, O. +2 more
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Applied Sciences, 2019 In this paper, we study an advanced pouring control system using a tilting-ladle-type automatic pouring machine. In such a machine, it is difficult to precisely pour the molten metal into the pouring basin of the mold, as the outflow from the ladle can ...
Yoshiyuki Noda, Yuta Sueki
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Electronics Letters, 2000 An explicit solution is given to a generic feedback design problem arising in flow control. The problem, which incorporates higher order dynamics and capacity constraints, captures important features of a number of design problems for units whose purpose is to smooth out flow rate fluctuations between interconnected devices.
J.M.C. Clark, R.B. Vinter
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Gas flow rate control using magnetic fluid
Nihon Kikai Gakkai ronbunshu, 2015 A novel method of controlling gas flow rate using magnetic fluid is proposed. Magnetic fluids under non-uniform magnetic field have strong dynamic pressure distribution along the magnetic field gradient at the gas-liquid interface with bulk magnetic body
Haruhiko YAMASAKI, Hiroshi YAMAGUCHI
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A microfluidic bio membrane for flow rate metering
, 2023 This study describes the function, optimization, and demonstration of a new class of passive, low-cost microfluidic flow meters based on birefringent chitosan membranes analyzed by polarized microscopy.
Charles , Larouche +5 more
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A constant air flow rate control of blower for residential applications [PDF]
, 2010 This paper presents a technique to control a blower for residential applications at constant air flow rate using an induction motor drive. The control scheme combines a variable volt/hertz ratio inverter drive and an average motor current regulation loop
楊勝明; Yang, Sheng-ming
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