Results 31 to 40 of about 206,554 (312)
Combining Data Collection Modes in Longitudinal Studies
, 2023 AbstractTechnological advances over the past two decades have substantially changed the range of data collection methods available to survey researchers. Web-based surveys have gained in popularity as increasing Internet penetration rates improve their coverage potential for general population research.
Roberts, Caroline, Voorpostel, Marieke
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Crystals, 2021 We present a design methodology for hybrid lasers to realise mode-hop free operation by controlling the cavity mode spacing. In this study, a compact hybrid photonic crystal laser (H-PhCL) was employed which allowed a reduction of the Fabry–Perot length ...
Praveen K. J. Singaravelu +5 more
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Journal of Advanced Mechanical Design, Systems, and ManufacturingAn investigation is carried out through experiments and numerical calculations for the improvement of the resolution of measuring the pitch deviation of a diffraction scale grating with the diffracted beams.
Tomoki KITAZUME, Yuki SHIMIZU
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The Impact of Mixing Modes on Reliability in Longitudinal Studies [PDF]
Sociological Methods & Research, 2014 Mixed-mode designs are increasingly important in surveys, and large longitudinal studies are progressively moving to or considering such a design. In this context, our knowledge regarding the impact of mixing modes on data quality indicators in longitudinal studies is sparse.
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Residual strain measurement based on longitudinal to shear wave velocity ratio with a dual-mode EMAT
Frontiers in Materials, 2023 In this paper, a new and noncontact method with measuring longitudinal to shear wave velocity ratio by a dual-mode electromagnetic acoustic transducer is proposed for residual strain measurement in a metal structure without knowing its thickness. Firstly,
Geng Dang +4 more
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Modeling the Converse Magnetoelectric Effect in the Low-Frequency Range
Sensors, 2023 This article is devoted to the theory of the converse magnetoelectric (CME) effect for the longitudinal, bending, longitudinal-shear, and torsional resonance modes and its quasi-static regime.
Mirza Bichurin +6 more
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FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
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A theory of longitudinal modes in semiconductor lasers [PDF]
Applied Physics Letters, 1982 A theory of longitudinal mode lasing spectrum of semiconductor lasers is developed which takes into account the nonuniform carrier and photon distributions and local gain spectrum shifts inside lasers with low end mirror reflectivities. The theory gives results consistent with observed longitudinal mode behavior in lasers with reduced facet ...
Lau, Kam Y., Yariv, Amnon
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The human gut microbiome across the life course
FEBS Letters, EarlyView.Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero +4 more
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Tunable Single-Longitudinal-Mode High-Power Fiber Laser
International Journal of Optics, 2012 We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of ∼9 MHz. A tunable fiber Bragg grating provided wavelength selection over a 10 nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal
Jonas K. Valiunas, Gautam Das
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