Results 21 to 30 of about 47,067 (257)
Crystal structure and charge distribution of pyrazine: effects of extinction, thermal diffuse scattering and series termination [PDF]
, 1976 The crystal structure and electronic charge distribution of pyrazine (1,4-diazabenzene) has been determined at 184 K by X-ray methods. The structural results of Wheatley [Acta Cryst. (1957), 10, 182-187] have been confirmed. A clear indication of bonding
Feil, D., Harkema, S., With, G. de
core +3 more sources
Objective and efficient terahertz signal denoising by transfer function reconstruction [PDF]
, 2020 As an essential processing step in many disciplines, signal denoising efficiently improves data quality without extra cost. However, it is relatively under-utilized for terahertz spectroscopy.
Chen, Xuequan +3 more
core +1 more source
THz-TDS Techniques of Thickness Measurements in Thin Shim Stock Films and Composite Materials [PDF]
Applied Sciences, 2021 Terahertz wave (T-ray) scanning applications are one of the most promising tools for nondestructive evaluation. T-ray scanning applications use a T-ray technique to measure the thickness of both thin Shim stock films and GFRP (glass fiber-reinforced plastics) composites, of which the samples were selected because the T-ray method could penetrate the ...
Kwang-Hee Im +4 more
openaire +2 more sources
Matrix-interpolation-based parametric model order reduction for multiconductor transmission lines with delays [PDF]
, 2015 A novel parametric model order reduction technique based on matrix interpolation for multiconductor transmission lines (MTLs) with delays having design parameter variations is proposed in this brief.
Dhaene, Tom +2 more
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Physical Review Accelerators and Beams, 2020 We present a systematic comparison of two complementary methods for determining the longitudinal charge density profile of the compressed electron bunches in the soft x-ray free-electron laser FLASH: a frequency-domain technique—coherent transition ...
Bernhard Schmidt +3 more
doaj +1 more source
Sensitivity of GNSS-R spaceborne observations to soil moisture and vegetation [PDF]
, 2016 Global navigation satellite systems-reflectometry (GNSS-R) is an emerging remote sensing technique that makes use of navigation signals as signals of opportunity in a multistatic radar configuration, with as many transmitters as navigation satellites are
Camps Carmona, Adriano José +6 more
core +2 more sources
Kendali TDS nutrisi hidroponik deep flow technique berbasis IoT menggunakan fuzzy logic
JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga), 2021 Pada sistem hidroponik deep flow technique (DFT), setiap umur dan jenis tanaman yang ditanam memerlukan total dissolved solids (TDS) dengan satuan ppm yang berbeda serta kegagalan tanaman dalam bertumbuh dapat terjadi jika nilai TDS tidak terpantau dengan baik. Tujuan dalam penelitian ini untuk membuat sistem kendali nilai TDS dengan metode fuzzy logic
Annisa Nurul Sholihah +2 more
openaire +2 more sources
Can GNSS reflectometry detect precipitation over oceans? [PDF]
, 2018 For the first time, a rain signature in Global Navigation Satellite System Reflectometry (GNSS‐R) observations is demonstrated. Based on the argument that the forward quasi‐specular scattering relies upon surface gravity waves with lengths larger than ...
Asgarimehr, Milad +3 more
core +1 more source
Rancang Bangun, Uji Performansi dan Analisis Biaya Alat Pencampur Nutrisi
Teknik, 2021 Tujuan penelitian ini adalah merancang bangun alat pencampur nutrisi tanaman pada sistem hidroponik DFT (Deep Flow Technique) yang dilengkapi dengan sistem kendali jumlah zat padat terlarut (TDS, satuan ppm) dan agitator.
Seri Intan Kuala +4 more
doaj +1 more source
Sensors, 2019 Terahertz time-domain spectroscopy (THz-TDS) is an effective coherent detection technique for deeply understanding the structures and functions of biomolecules.
Miao Yu +6 more
doaj +1 more source