Results 21 to 30 of about 2,368,496 (265)

An Experimental and Theoretical Study of Impact of Device Parameters on Performance of AlN/Sapphire-Based SAW Temperature Sensors

open access: yesMicromachines, 2021
The impact of device parameters, including AlN film thickness (hAlN), number of interdigital transducers (NIDT), and acoustic propagation direction, on the performance of c-plane AlN/sapphire-based SAW temperature sensors with an acoustic wavelength (λ ...
Hongrui Lv   +9 more
doaj   +1 more source

Microdosimetry Study of Proton Quality Factor Using Analytic Model Calculations

open access: yesApplied Sciences, 2022
The quality factor (Q) is formally linked to the stochastic (e.g., carcinogenic) risk of diverse ionizing radiations at low doses and/or low dose rates.
Alexis Papadopoulos   +5 more
doaj   +1 more source

MAPPING OF S-WAVE ATTENUATION FIELD USING THE CODA ENVELOPES OF LOCAL EARTHQUAKES AND QUARRY BLASTS FOR THE EAST KAZAKHSTAN REGION ON THE DATA FROM PERMANENT AND TEMPORARY SEISMIC STATIONS

open access: yesГеодинамика и тектонофизика, 2023
The paper considers the heterogeneities of short-period shear waves attenuation field in the east Kazakhstan lithosphere including the region of the Semipalatinsk Test Site where a lot of test detonations of nuclear weapons were performed underground in ...
Yu. F. Kopnichev, I. N. Sokolova
doaj   +1 more source

Gaps in Hospice and Palliative Care Research: A Scoping Review of the North American Literature

open access: yesJournal of Aging Research, 2020
Background. The demand for hospice and palliative care is growing as a result of the increase of an aging population, which is most prominent in North America. Despite the importance of the topic and an increase in hospice and palliative care utilization,
Rebecca Antonacci   +10 more
doaj   +1 more source

Modelization Methodology for the Quality Factor of Quarter-Wavelength n-Section Coaxial Stepped Impedance Resonators

open access: yesIEEE Journal of Microwaves, 2022
This paper proposes a method to develop an analytical model and/or numerical resolution of the quality factor of quarter-wavelength n-section coaxial stepped impedance resonators (SIRs).
Jessica Benedicto   +3 more
doaj   +1 more source

Changes in the Quality and Nontargeted Metabolites of Salt-Fermented Shrimp (Saeu-jeot) Based on Fermentation Time

open access: yesFermentation, 2023
Saeu-jeot is a widely consumed variety of jeotgal, a South Korean salt-fermented food. However, there is a lack of existing studies conducting nontargeted metabolomic analyses of saeu-jeot during fermentation.
Sunhyun Park   +5 more
doaj   +1 more source

GO/C2S Nanocomposite as an Environmentally-Friendly Material for sustainable Development of Cement Structure [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2018
In the present work, Graphene Oxide (GO) nano particles with 0.1, 0.2, 0.4 and 0.8 weight percentages (wt.% ), synthesized by Hummer method entered into the Di-Calcium Silicate (C2S) matrix (synthesized with using Pechini method and their nano structural
Ali Bahari, Hussein Salmani
doaj   +1 more source

Analysis of 19-inch and metric mechanical structures for electronic equipment

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The paper deals with the research and analysis of various quality indicators of the standard mechanical structures of two constructional systems in order to define and compare their characteristics, and to predict prospects for their use.
A. A. Yefimenko, A. P. Karlangach
doaj   +1 more source

Optimization of the Spatial Configuration of Local Defects in Phononic Crystals for High Q Cavity

open access: yesFrontiers in Mechanical Engineering, 2020
Defects can be introduced within a 2-D periodic lattice to realize phononic cavities or phononic crystal (PnC) waveguides at the ultrasonic frequency range. The arrangement of these defects within a PnC lattice results in the modification of the Q factor
Delfino Reyes   +7 more
doaj   +1 more source

Effect of Genistein and Glycitein on production performance, egg quality, antioxidant function, reproductive hormones and related-genes in pre-peak laying hens

open access: yesPoultry Science
: Genistein (GEN) and Glycitein (GLY), are types of isoflavone extracted mainly from soy plants, although GEN is associated with stronger antioxidant and growth-promoting effects. The impact of dietary GEN and GLY on reproductive performance, egg quality,
Uchechukwu Edna Obianwuna   +6 more
doaj   +1 more source

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