Results 71 to 80 of about 20,719 (245)
UHF diagnostic monitoring techniques for power transformers
, 2004 This paper initially gives an introduction to ultra-high frequency (UHF) partial discharge monitoring techniques and their application to gas insulated substations.
Bennoch, C.J. +3 more
core
Inkjet Fabrication of Frame Dipole FSS [PDF]
, 2014 Digital fabrication techniques gives the possibility of producing elements with very thin and precise features which could allow the modification of UHF structures to reduce ink usage while still achieving similar performance. This paper investigates the
Turki, Badredin +7 more
core
Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 650-665, August 2026.ABSTRACT Purpose Ultrahigh‐field MRI requires careful management of the specific absorption rate (SAR), which is subject and subject‐position dependent. Within‐scan subject motion may exacerbate local SAR exposure, necessitating large safety margins to prevent SAR underestimation, which hampers imaging performance.
Katherine Anna Blanter +4 more
wiley +1 more source
Nanopower CMOS transponders for UHF and microwave RFID systems
, 2007 At first, we present an analysis and a discussion of the design options and tradeoffs for a passive microwave transponder. We derive a set of criteria for the optimization of the voltage multiplier, the power matching network and the backscatter ...
De Vita, Giuseppe
core
Mesoscale Whole‐Brain T2*‐Weighted and Associated Quantitative MRI in Humans at 10.5 T
Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 817-825, August 2026.ABSTRACT Purpose To demonstrate mesoscale whole‐brain T2*‐weighted (T2*w) MRI at 10.5 T, quantify R2* relaxation rate and magnetic susceptibility (χ), and evaluate T2*w contrast at such high field strength. Methods Multi‐echo GRE (ME‐GRE) data were collected in healthy adults at 0.5 mm isotropic resolution at 10.5 T.
Jiaen Liu +15 more
wiley +1 more source
The Journal of the Institute of Television Engineers of Japan, 1962 UHF送信管には, 三極管, 四極管などの普通の真空管と同一原理に基づくものと, クライストロン, 進行波管などの速度変調原理に基づくものとがあるが, ここでは主として最近の極管系のUHF送信管について, 設計上, 応用上の問題点, 現在の趨勢について紹介した.
Nakahara, Fujiro, Yamada, Tokutaro
openaire +1 more source
Health Preferences and Sorting in the City
Health Economics, Volume 35, Issue 7, Page 1033-1055, July 2026.ABSTRACT There are large health inequalities between neighborhoods in many cities of the world. This paper studies individuals' sorting based on health amenities and exposes an important connection between health preferences and the housing market. I estimate a neighborhood choice model using geolocated data from a health survey in New York City and ...
Manuela Puente‐Beccar
wiley +1 more source
Passive uhf rfid tag antenna using polycarbonate and pdms material [PDF]
, 2019 This paper proposes a UHF RFID tag antenna design using meander lines traced on a bowtie shape and the propagation measurement of the tag done in free space, directly on human skin, and on PDMS material.
Samsuri, N. A. +5 more
core
Sensors, 2013 The ultra-high-frequency (UHF) method is used to analyze the insulation condition of electric equipment by detecting the UHF electromagnetic (EM) waves excited by partial discharge (PD).
Chenguo Yao +4 more
doaj +1 more source
Spatial and temporal variation in survival of female wild turkeys
The Journal of Wildlife Management, Volume 90, Issue 5, July 2026.We monitored 370 female wild turkeys across North Carolina's 3 ecoregions from 2020‐2022 to understand factors influencing their survival. Female survival varied by ecoregion and behavior state, with the incubation period having the lowest survival rates. None of the land cover variables affected survival.
David J. Moscicki +5 more
wiley +1 more source