Results 271 to 280 of about 26,525,554 (339)
Some of the next articles are maybe not open access.
Laser & Photonics Reviews, 2022
High‐power laser sources are widely used in industrial precision processing and act as a new platform for strong‐field physics research using peak power over petawatt. This review focuses on realizing high‐energy solid‐state disk and slab systems and the
Jiexi Zuo, Xuechun Lin
semanticscholar +1 more source
High‐power laser sources are widely used in industrial precision processing and act as a new platform for strong‐field physics research using peak power over petawatt. This review focuses on realizing high‐energy solid‐state disk and slab systems and the
Jiexi Zuo, Xuechun Lin
semanticscholar +1 more source
State-of-the-Art of High-Power Gyro-Devices and Free Electron Masers
Journal of Infrared, Millimeter and Terahertz Waves, 2020This paper presents a review of the experimental achievements related to the development of high-power gyrotron oscillators for long-pulse or CW operation and pulsed gyrotrons for many applications.
M. Thumm
semanticscholar +1 more source
High‐powered automobile stereos
Otolaryngology–Head and Neck Surgery, 1993We measured the owner‐adjusted acoustic outputs of 10 automobile stereo systems, with power ratings ranging between 150 and 600 watts. The sound levels ranged from 107 to 138 dB SPL and 84 to 108 dBA. Most of the high‐Intensity sound was in the 31, 62, and 125 Hz center‐frequency octave bands.
K L, Ramsey, F B, Simmons
openaire +2 more sources
High power asymmetrical thyristors
1985 IEEE Power Electronics Specialists Conference, 1985The power loss of fast speed thyristors is relatively high, especially for higher blocking voltage devices. High power asymmetrical thyristors will reduce the power loss up to 40%. In this paper we will discuss the newly developed high power asymmetrical thyristors and their trade-off.
C. K. Chu, Paul B. Spisak, D. A. Walczak
openaire +1 more source
Half‐Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density
Advanced Energy Materials, 2020Half‐Heusler (HH) compounds have shown great potential in waste heat recovery. Among them, p‐type NbFeSb and n‐type ZrNiSn based alloys have exhibited the best thermoelectric (TE) performance.
Junjie Yu +11 more
semanticscholar +1 more source
High power ultrasound standard
The Journal of the Acoustical Society of America, 2002A sensitive radiation force balance for laboratory measurement of ultrasonic power is presented. The principle of the system is based on measuring the ultrasonic radiation force exerted on a conical float suspended in water. Technical details of the implementation of the economically attractive system are described.
Wong, G. S.K., Wu, L.
openaire +3 more sources
IEEE transactions on power electronics, 2020
In this letter, we propose to implement a microwave lateral GaN Schottky barrier diode (SBD) in a designed 5.8-GHz rectifier circuit for future high-power and high-efficiency wireless power transfer.
Kui Dang +10 more
semanticscholar +1 more source
In this letter, we propose to implement a microwave lateral GaN Schottky barrier diode (SBD) in a designed 5.8-GHz rectifier circuit for future high-power and high-efficiency wireless power transfer.
Kui Dang +10 more
semanticscholar +1 more source
Progress in narrowband high-power microwave sources
, 2020Even after 50 years of development, narrowband high-power microwave (HPM) source technologies remain the focus of much research due to intense interest in innovative applications of HPMs in fields such as directed energy, space propulsion, and high-power
Jun Zhang +7 more
semanticscholar +1 more source
A Dynamic WPT System With High Efficiency and High Power Factor for Electric Vehicles
IEEE transactions on power electronics, 2020Dynamic wireless power transfer (WPT) for charging electric vehicles (EVs) overcomes some of the problems associated with EVs battery size and weight as well as distance range limitation and long charging duration.
A. Zakerian +2 more
semanticscholar +1 more source
IEEE Transactions on Microwave Theory and Techniques, 1961
The various circuit arrangements used in duplexers are analyzed in terms of their power-handling ability in two situations: first, where the bandwidth is narrow so that insertion loss determines maximum Q, and second, where large bandwidths are required and the maximum Q is determined by available Q band-width products.
openaire +1 more source
The various circuit arrangements used in duplexers are analyzed in terms of their power-handling ability in two situations: first, where the bandwidth is narrow so that insertion loss determines maximum Q, and second, where large bandwidths are required and the maximum Q is determined by available Q band-width products.
openaire +1 more source