Results 31 to 40 of about 1,112,242 (197)

Dynamic measurements for funny channels [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
Proteins possess the uncanny ability to telegraph signals over long distances. The presence of a ligand, snugly bound to a site on one end of a molecule, can be “felt” by an effector domain several nanometers away. Determining precisely how this task is accomplished is a major challenge for structural biologists.
openaire   +2 more sources

Technological method for the design of measuring instruments and systems for operation in previously unknown operating conditions

open access: yesФизика волновых процессов и радиотехнические системы, 2019
The method of designing radio engineering systems and measuring instruments, which are not affected by disturbing influences, is presented. The method is developed on the base of dual channel principle, formulated by academician Petrov B.N. The technique
V.N. Nesterov, A.R. Li
doaj   +1 more source

Quantum Gaussian channels with weak measurements

open access: yesQuantum Information and Computation, 2015
In this paper we perform a novel analysis of quantum Gaussian channels in the context of weak measurements. Suppose Alice sends classical information to Bob using a quantum channel. Suppose Bob is allowed to use only weak measurements, what would be the channel capacity? We formulate weak measurement theory in these terms and discuss the above question.
Boaz Tamir, Eliahu Cohen
openaire   +2 more sources

On wireless channel modelling : extraction of channel from channel measurements [PDF]

open access: yes2007 International Symposium on Communications and Information Technologies, 2007
Next generation systems are using directional antennas for indoor high data rate devices. This arises a need for measurement and modelling of directional channels. Indoor environments also introduce extreme multipath behaviour into the directional channel.
Aastha Gupta   +2 more
openaire   +1 more source

Development of the structure of a computerized information and measurement system based on the analysis of the problems of using an asynchronous electric drive in pumping equipment

open access: yesТехнічна інженерія
The article analyzes the features of using an asynchronous electric drive in pumping equipment. Focusing on the problems that arise in the diagnosis, research and maintenance of such engines, in particular in electro-hydraulic systems, the study uses ...
Yu.O. Podchashynskyi, Ya.V. Mahaletskyi
doaj   +1 more source

Three-dimensional laser velocimeter simultaneity detector [PDF]

open access: yes, 1990
A three-dimensional laser Doppler velocimeter has laser optics for a first channel positioned to create a probe volume in space, and laser optics and for second and third channels, respectively, positioned to create entirely overlapping probe volumes in ...
Brown, James L.
core   +1 more source

Multichannel measuring device of deformation for research materials of constructions [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
Possibility of Atmel ATMega microcontrollers use was shown for the interfacing of sensors devices with the modern computer systems. On the basis of Atmel ATMega16 microcontroller the multichannel system of treatment of information was developed for ...
Druzhinin A., Vuitsyk A., Khoverko Yu.
doaj  

A Flow-Measuring Algorithm of Arc-Bottomed Open Channels through Multiple Characteristic Sensing Points of the Flow-Velocity Sensor in Agricultural Irrigation Areas

open access: yesSensors, 2020
Precise flow measurement in the open channel is a key prerequisite to implementation of modern agricultural efficient water use. The channel with an arc-bottomed shape is the most common channel type in irrigation area at present.
Yu Han   +3 more
doaj   +1 more source

Dual-channel OCT for Velocity Measurement in Microfluidic Channels

open access: yes26th International Conference on Optical Fiber Sensors, 2018
A dual-beam Optical Coherence Tomography system has been developed, using a bespoke dual optical fibre, to simultaneously image microfluidic channel structures and measure high velocity flows (presently 250μm/s) from a single optical access point.
Rigas, Evangelos   +4 more
openaire   +4 more sources

A Gyro-Free System for Measuring the Parameters of Moving Objects

open access: yesMeasurement Science Review, 2014
The present paper considers a new measurement concept of modeling measuring instruments for gyro-free determination of the parameters of moving objects. The proposed approach eliminates the disadvantages of the existing measuring instruments since it is ...
Dichev Dimitar   +3 more
doaj   +1 more source

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