Design and performance of singular electric field terahertz photoconducting antennas

1997 ◽  
Vol 71 (15) ◽  
pp. 2076-2078 ◽  
Author(s):  
Y. Cai ◽  
I. Brener ◽  
J. Lopata ◽  
J. Wynn ◽  
L. Pfeiffer ◽  
...  
Keyword(s):  
Electric Field ◽  
Photoconducting Antennas ◽  
And Performance

Design and Performance of an Electro-Rheological Grease (ERG) Shock Absorber

1999 ◽  
Vol 13 (14n16) ◽  
pp. 2135-2142 ◽  
Author(s):  
Thomas M. Marksmeier ◽  
Faramarz Gordaninejad ◽  
Eric L. Wang ◽  
Arthur Stipanovic
Keyword(s):  
Adverse Effects ◽  
Electric Field ◽  
Shock Absorber ◽  
Damping Capacity ◽  
Fluid Shear ◽  
Electrode Gap ◽  
Flow Paths ◽  
Low Frequencies ◽  
And Performance

The use of an electro-rheological fluid (ERF) in some applications may require a high damping capacity. This paper presents the design and evaluation of a prototype damper using an electro-rheological grease (ERG) with high zero electric field viscosity. In designing the ERG damper several issues such as: a) maintaining a constant internal damper volume, b) minimizing the fluid shear in flow paths (other than in the electrode gap region) which reduces adverse effects on damper performance and, c) allowing the adjustment of the electrode gaps, are considered. Comparisons are made between the performance of the ERG and an existing ERF. The ERG demonstrates higher damping capacities at low frequencies than those of the ERF.

Mechanism and performance of trace metal removal by continuous-flow constructed wetlands coupled with a micro-electric field

2019 ◽  
Vol 164 ◽  
pp. 114937 ◽  
Author(s):  
Zhihao Si ◽  
Yuhui Wang ◽  
Xinshan Song ◽  
Xin Cao ◽  
Xian Zhang ◽  
...  
Keyword(s):  
Electric Field ◽  
Trace Metal ◽  
Constructed Wetlands ◽  
Continuous Flow ◽  
Metal Removal ◽  
And Performance

Fabrication and Electro-Optical Characterization of a Nanocellulose-Based Spatial Light Modulator

MRS Advances ◽  
2015 ◽  
Vol 1 (10) ◽  
pp. 631-637 ◽  
Author(s):  
Hassane Oulachgar ◽  
Martin Bolduc ◽  
Gregory Chauve ◽  
Yan Desroches ◽  
Patrick Beaupre ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electric Field ◽  
Kerr Effect ◽  
Applied Electric Field ◽  
Spatial Light Modulator ◽  
Optical Characterization ◽  
Light Modulator ◽  
Renewable Material ◽  
And Performance

ABSTRACTNanocrystalline cellulose (NCC) is an emerging renewable nanomaterial that is promising for many diverse applications. As a renewable material, NCC and its derivatives have been widely studied, focusing on their biological, chemical, as well as mechanical properties. The electro-optical properties of NCC, however, remain relatively under explored. Birefringence is one of the important properties that make the NCC very attractive for photonic applications. The rode-like NCC fibers dispersed in certain solutions exhibit a specific preferred orientation which depends on their electrical charge, physical dimensions and the type of solutions used to disperse NCC fibers. In a recent study of Kerr-effect in functionalized NCC solutions, we demonstrated that it is possible to control the orientation of NCC fibers under an applied electric field. NCC-based spatial light modulator devices were fabricated and characterized. Results showed that the transmittance of the device can be controlled through frequency modulation of the applied electric field. In this paper we present the fabrication and electro-optical characterization of the device and discuss the relevant properties of NCC and future approaches to optimize and improve their characteristics and performance.

Fully transparent thin-film varactors: fabrication and performance

2015 ◽  
Vol 3 (22) ◽  
pp. 5703-5708 ◽  
Author(s):  
Shihui Yu ◽  
Lingxia Li ◽  
Weifeng Zhang ◽  
Zheng Sun ◽  
Haoran Zheng
Keyword(s):  
Thin Film ◽  
Electric Field ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Bottom Electrode ◽  
Dielectric Material ◽  
Transparent Conductive Oxide ◽  
Barium Strontium ◽  
Conductive Oxide ◽  
And Performance

We report the fabrication of fully transparent thin-film varactors using a dielectric material, barium strontium titanate (Ba0.6Sr0.4TiO3, BST), as an electric field tunable layer, transparent conductive oxide (Sb doped SnO2, ATO) as a bottom electrode and ATO/Ag tri-layer film as a top electrode.

scholarly journals Assessment of Electric and Magnetic Fields Exposures for Different Types of Street Lights

2019 ◽  
Vol 8 (4) ◽  
pp. 6275-6280
Keyword(s):  
Electric Field ◽  
Energy Saving ◽  
Human Body ◽  
Open Space ◽  
Health Effect ◽  
Field Exposure ◽  
Switching Power ◽  
Different Types ◽  
Lighting Systems ◽  
And Performance

The use of solid-state lightings using energy saving lights such as light emitting diodes (LEDs), High Pressure Sodium Vapour (HPSV) and induction light in the illumination has represented a major technological breakthrough in recent years. Several recent studies focus on the development and performance of energy saving street lighting systems such as LED, induction etc. These modern lamps use electronic ballasts contain a switching power supply circuit typically operate in the range of 20kHz to 60kHz to achieve low power consumption in which may cause interference to communication equipment as well as health effect to human body, which is not an issue in traditional electromagnetic 60Hz ballasts. This paper investigates the electromagnetic and electric field exposure to human body from three street lights systems; LED, HPSV and Induction lights. The electromagnetic and electric field measurement are conducted in the laboratory that represents a controlled environment in which free from external factors or interferences. The electromagnetic and electric field exposure measurements are conducted using the Aaronia SPECTRAN hand held spectrum analyzer model NF-5030 on five streetlights from three different types in accordance to MS2230-2009 standard. The results presented in this paper can be utilized as references for measurement in open space that may have some interferences from other sources as well.

OBSERVATION OF NEW SUPERCONDUCTIVITY AND PERFORMANCE IMPROVEMENT BY EMPLOYING CYCLOTRON OF ELECTRON PAIRS

2013 ◽  
Vol 27 (12) ◽  
pp. 1350045
Author(s):  
SHINICHI ISHIGURI
Keyword(s):  
Electric Field ◽  
Electric Circuit ◽  
Meissner Effect ◽  
Cyclotron Motion ◽  
Electron Pairs ◽  
Practical Applications ◽  
Superconducting Device ◽  
And Performance ◽  
Superconducting Current ◽  
Negative Electric Field

A novel temperature-independent superconducting device that employs a doped semiconductor is presented in this study. The underlying theory of this superconductivity is confirmed by experimental results. Specifically, superconductivity generates a negative electric field with characteristics of both electrostatic and current-induced fields. This type of electric field creates a new paired interaction between two electrons and implies the existence of a new force. The negative electric field also exhibits the Meissner effect. Moreover, magnetic flux quanta are produced in the semiconductor. The Aharonov–Bohm effect is exhibited to create a superconducting current along the electric circuit of the superconducting system. Therefore, a load introduced to the circuit will also become superconductive. This finding has strong potential for practical applications. To solve the problem of critical current, a static magnetic field is applied. This field combines with the new electric field to yield cyclotron motion, which increases superconducting current.

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