Results 11 to 20 of about 7,065,211 (348)

A GHz Silicon-Based Width Extensional Mode MEMS Resonator with Q over 10,000

open access: yesSensors, 2023
This work presents a silicon-based capacitively transduced width extensional mode (WEM) MEMS rectangular plate resonator with quality factor (Q) of over 10,000 at a frequency of greater than 1 GHz.
Wenli Liu   +10 more
doaj   +1 more source

Automatic Marine Sub-Bottom Sediment Classification Using Feature Clustering and Quality Factor

open access: yesJournal of Marine Science and Engineering, 2023
It has been proven that the quality factor (Q) is important for marine sediment attenuation attribute representation and is helpful for sediment classification.
Zaixiang Zong   +3 more
doaj   +1 more source

Reliability Assessment of NPP Safety Class Equipment Considering the Manufacturing Quality Assurance Process

open access: yesJournal of Nuclear Engineering, 2023
Quality and safety are intensely related and go hand in hand. Quality of the safety-grade equipment is very important for the safety of a nuclear power plant (NPP) and achieving production goals.
Mohammad Khalaquzzaman   +2 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

Performance of Textile Mask Materials in Varied Humidity: Filtration Efficiency, Breathability, and Quality Factor

open access: yesApplied Sciences, 2022
During the COVID-19 pandemic, reusable masks became ubiquitous; these masks were made from various fabrics without guidance from the research community or regulating agencies. Though reusable masks reduce the waste stream associated with disposable masks
Joelle M. Segovia   +5 more
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

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

Integrated Resonant Micro/Nano Gravimetric Sensors for Bio/Chemical Detection in Air and Liquid

open access: yesMicromachines, 2021
Resonant micro/nanoelectromechanical systems (MEMS/NEMS) with on-chip integrated excitation and readout components, exhibit exquisite gravimetric sensitivities which have greatly advanced the bio/chemical sensor technologies in the past two decades. This
Hao Jia, Pengcheng Xu, Xinxin Li
doaj   +1 more source

Resonant Characteristics of Rectangular Microcantilevers Vibrating Torsionally in Viscous Liquid Media [PDF]

open access: yes, 2012
The resonant characteristics of rectangular microcantilevers vibrating in the torsional mode in viscous liquid media are investigated. The hydrodynamic load (torque per unit length) on the vibrating beam due to the liquid was first determined using a ...
Brand, Oliver   +5 more
core   +3 more sources

Improving the psychological evaluation of exercise referral: psychometric properties of the Exercise Referral Quality of Life Scale [PDF]

open access: yes, 2015
There is a growing need to assess the psychological outcomes of exercise referral and the National Institute of Health and Care Excellence has called for the routine assessment of life-quality.
Bauman AE   +28 more
core   +2 more sources

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