Results 281 to 290 of about 1,550,715 (315)
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European Urology, 1976
A completely new and different principle of 'wireless' endoscope is described. The 'contact endoscope' consists of two parts, a rod which is the optical element and a light recovery jacket. This endoscope utilizes the surrounding light, either daylight or artificial light. It allows endoscopic photography and cinematography with a magnificant of nearly
M, Jaupitre, A, Jaupitre
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A completely new and different principle of 'wireless' endoscope is described. The 'contact endoscope' consists of two parts, a rod which is the optical element and a light recovery jacket. This endoscope utilizes the surrounding light, either daylight or artificial light. It allows endoscopic photography and cinematography with a magnificant of nearly
M, Jaupitre, A, Jaupitre
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2013
The recent and dramatic increase in demand for mobile data communication, driven by consumer devices such as smartphones and tablets, is resulting in heightened technical challenges for the wireless infrastructure that lies as a bridge in-between these mobile terminals and the wired network transferring the data between final users.
Manganaro, Gabriele, Leenaerts, Domine
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The recent and dramatic increase in demand for mobile data communication, driven by consumer devices such as smartphones and tablets, is resulting in heightened technical challenges for the wireless infrastructure that lies as a bridge in-between these mobile terminals and the wired network transferring the data between final users.
Manganaro, Gabriele, Leenaerts, Domine
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Gastrointestinal Endoscopy, 2000
Miniaturization of electronic components may allow the construction of new types of endoscopes that no longer require external wires, cables, or optical fibers. Our aim was to assess the feasibility of wireless endoscopy and to construct experimental prototypes using miniature charge-coupled device cameras, light sources, microwave transmitters, and ...
F, Gong, P, Swain, T, Mills
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Miniaturization of electronic components may allow the construction of new types of endoscopes that no longer require external wires, cables, or optical fibers. Our aim was to assess the feasibility of wireless endoscopy and to construct experimental prototypes using miniature charge-coupled device cameras, light sources, microwave transmitters, and ...
F, Gong, P, Swain, T, Mills
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2010
To achieve performance gains in the wireless channel, spatial diversity is employed. These higher order transmit diversity gains generally require multiple transmit antennas at the source. This requirement is not always possible in real world applications, where practical concerns limit the number of antennas a wireless device can have. Recently, a new
Patrick Tooher, M. Reza Soleymani
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To achieve performance gains in the wireless channel, spatial diversity is employed. These higher order transmit diversity gains generally require multiple transmit antennas at the source. This requirement is not always possible in real world applications, where practical concerns limit the number of antennas a wireless device can have. Recently, a new
Patrick Tooher, M. Reza Soleymani
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Wireless power transfer (Wireless lighting)
2015 5th International Conference on Information & Communication Technology and Accessibility (ICTA), 2015Wireless power transfer is a new technology to transfer electrical power without any physical contact between the source and the load. The aim of this paper is to propose the use of a simple, cheap and easy technique for mid range wireless power transfer.
Mohamed Hassan, Amr El Zawawi
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Healthcare informatics : the business magazine for information and communication systems, 2001
A new look at the early history of wireless communication. By 1897 Guglielmo Marconi had transformed James Clerk Maxwell's theory of electromagnetic waves into a workable wireless telegraphy system, and by 1907 Lee de Forest had invented the Audion, a feedback amplifier and oscillator that opened the way to practical radio transmission ...
Jeffrey Staw +3 more
+5 more sources
A new look at the early history of wireless communication. By 1897 Guglielmo Marconi had transformed James Clerk Maxwell's theory of electromagnetic waves into a workable wireless telegraphy system, and by 1907 Lee de Forest had invented the Audion, a feedback amplifier and oscillator that opened the way to practical radio transmission ...
Jeffrey Staw +3 more
+5 more sources
Wireless – introducing wireless proximity switches
Sensor Review, 2003Sensors and actuators are found in large numbers on every production line in every industry. And each and every one of them requires data and power cabling. Not only are these cables costly to install, they are also a frequent source of failure. ABB is introducing a novel wireless proximity switch that incorporates a communication module for the power ...
Christoffer Apneseth +4 more
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1999
James Clerk Maxwell’s discovery of electromagnetic waves was proven experimentally by Heinrich Hertz. From then on here were numerous attempts to use electromagnetic waves for communications. A young Italian, Guglielmo Marconi, arrived in Britain and worked with the Post Office to gradually extend the radius within which radiation can be detected to ...
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James Clerk Maxwell’s discovery of electromagnetic waves was proven experimentally by Heinrich Hertz. From then on here were numerous attempts to use electromagnetic waves for communications. A young Italian, Guglielmo Marconi, arrived in Britain and worked with the Post Office to gradually extend the radius within which radiation can be detected to ...
openaire +1 more source