Results 61 to 70 of about 87,786 (308)

Prevalence and Trajectory of Household Material Hardship Among Children With Advanced Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Families of children with advanced cancer living in poverty experience inferior outcomes including poor parent mental health and worse child quality of life. Household material hardship (HMH: food, housing, transportation, and/or utility insecurity) is a modifiable poverty exposure—and potential intervention target—that ...
Sarah Wright   +13 more
wiley   +1 more source

An unequal dual-band power divider with composite left/right-handed transmission lines

open access: yesDianzi Jishu Yingyong, 2019
Aiming at overcoming the drawback that a conventional power divider can only operate at a fixed frequency and its odd harmonics, a miniaturized unequal power divider operating at 1 GHz and 2.2 GHz is presented.
Lin Jianxin   +3 more
doaj   +1 more source

Arc Phenomena in low-voltage current limiting circuit breakers [PDF]

open access: yes, 2010
Circuit breakers are an important safety feature in most electrical circuits, and they act to prevent excessive currents caused by short circuits, for example. Low-voltage current limiting circuit breakers are activated by a trip solenoid when a critical
Budd, Chris   +4 more
core  

Computational Divided Differencing and Divided-Difference Arithmetics [PDF]

open access: yes, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Thomas W. Reps, Louis B. Rall
openaire   +2 more sources

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter   +17 more
wiley   +1 more source

A wideband CPW ring power combiner with low insertion loss and high port isolation [PDF]

open access: yes, 2012
In this paper we present a coplanar waveguide (CPW)-based ring power combiner that exhibits less than 0.8 dB insertion loss, better than 15 dB port match and higher than 22 dB isolation loss over the frequency range from 50 GHz to 100 GHz.
Cumming, D.R.S.   +4 more
core   +1 more source

High-power microwave power divider concept [PDF]

open access: yes, 1969
Variable power divider keeps microwave transmitter at full power. This preserves the bandwidth and modulation characteristics and proportions any amount of the full power from the normal antenna into a dissipative ...
Kolbly, R. B.
core   +1 more source

Novel Compact Three-Way Filtering Power Divider Using Net-Type Resonators [PDF]

open access: yes, 2015
In this paper, we present a novel compact three-way power divider with bandpass responses. The proposed power divider utilizes folded net-type resonators to realize dual functions of filtering and power splitting as well as compact size.
Wei-Qiang Pan   +2 more
core   +2 more sources

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song   +15 more
wiley   +1 more source

Demodulator for carrier transducers [PDF]

open access: yes, 1974
A carrier type transducer is supplied with a carrier wave via an audio amplifier, a filter, a frequency divider, and an oscillator. The carrier is modulated in accordance with the parameter being measured by the transducer and is fed to the input of a ...
Roller, R. F.
core   +1 more source

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