Results 241 to 250 of about 7,609 (286)

Compact Wireless Devices with Defected-Ground Structures

2006 International Conference on Wireless and Mobile Communications (ICWMC'06), 2006
In this paper are presented some investigations on micro- strip defected ground structures (DGS). It is shown that the presence of a slot in the ground plane can substantially enhance the electric coupling, or the electric part of a mixed coupling between resonators and its external feedings.
Nicolae Militaru, Marian Gabriel Banciu, C. A. Dutu, Lucian Trupina, George Lojewski   +4 more
openaire   +1 more source

Research on Hanging Grounding Wire Device with Integrated Electroscope and Grounding

2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2019
Hanging the grounding wire during the catenary daily power outage operation is the significant link to ensure safe work. While maintaining, the electroscope must be firstly used for electricity inspection before grounding wires. Since the operation is carried out step by step, it is easy to mistake tools and there might be inconsistency between the ...
Jiajun Liu, Sidan Han
openaire   +1 more source

Remote monitoring of the condition of the grounding device

Digital technology security, 2023
In connection with the rapid development of technologies, increasing the volume of data exchange and increasing requirements for information security, there is a need to pay special attention to the causes of possible data loss. One of the most common reasons is the quality of power supply of telecommunications networks.
Valeriy E. Mitrokhin, Aleksandr S. Naumov   +1 more
openaire   +1 more source

Ground radiation antenna for mobile devices

2017 Sixth Asia-Pacific Conference on Antennas and Propagation (APCAP), 2017
This paper gives a comprehensive review on ground radiation antennas. Ground radiation antennas are developed to achieve miniaturization and performance enhancement for mobile antennas. The operation concept is demonstrated first, and various techniques including wideband, multiband, high-sensitivity, multiple-input multiple-output (MIMO) and circular ...
Longyue Qu, Hyung-Hoon Kim, Hyeongdong Kim   +2 more
openaire   +1 more source

Night vision devices for ground environment

IEEE Aerospace and Electronic Systems Magazine, 1999
The PM N-V/RSTA is procuring the Driver's Vision Enhancer (DVE) thermal imaging system for use in combat and tactical wheeled vehicles. The DVE uses uncooled forward looking infrared technology compared to the I/sup 2/ technology currently in the field.
P.S. Best, D.J. Collins, D. Piccione, D. Ferrett   +3 more
openaire   +1 more source

Photoswitchable biomaterials as grounds for optobioelectronic devices

Bioelectrochemistry and Bioenergetics, 1997
Abstract Optobioelectronic systems provide a means for the electronic transduction of recorded optical signals. The methodologies to assemble optobioelectronic devices are reviewed. One method involves the chemical modification of redox enzymes with photoisomerizable units and their integration with electrode surfaces.
Itamar Willner, Bilha Willner
openaire   +1 more source

GROUND PREPARATION DEVICE

2001
The invention relates to a ground preparation device (8) comprising a frame (10), to which at least one ground preparation tool and wheels (14) that roll along the ground are attached. The position of the wheels (14) and/or the ground preparation tool in relation to the frame can be modified by a hydraulic cylinder (24, 80) and detected by a sensor (58)
DEERE & CO, DANNIGKEIT HELMUT
openaire   +1 more source

Grounding principles and practice III — Generator-neutral grounding devices

Electrical Engineering, 1945
Characteristics of devices for grounding the neutrals of synchronous generators and the conditions under which the various types of devices are used and their effect on associated equipment are discussed in this article, the third in a series of five based on lectures which were sponsored by the power and industrial group of the AIEE New York Section ...
openaire   +1 more source

Ground Penetrating Radar as a Sentinel Device

Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010, 2010
Geophysical methods provide a non-destructive non-intrusive method of subsurface investigation. Oftentimes, however, the target is difficult to “see” due to lack of contrast between the target and background. This lack of contrast can be rectified through the use of a sentinel device.
Peter J. Hutchinson, Bryan J. Teschke
openaire   +1 more source

Grounding electrodes and grounding devices. Regulatory requirements

Автоматика, связь, информатика
Одной из основных проблем при проектировании заземляющих устройств (ЗУ) в грунтах с высоким удельным сопротивлением является создание низкоомного заземляющего устройства. В последнее время широкое распространение получили так называемые активные (химические) заземляющие электроды, обеспечивающие искусственное снижение удельного сопротивления грунта в ...
openaire   +1 more source