Results 41 to 50 of about 9,450,899 (324)

Evaluation of the effect of TiC precipitates on the hydrogen trapping capacity of Fe-C-Ti alloys [PDF]

open access: yes, 2014
The present work evaluates the hydrogen trapping behavior of different laboratory cast generic Fe-C-Ti martensitic alloys. Titanium carbides were precipitated in the materials by well-designed heat treatments.
Depover, Tom   +4 more
core   +2 more sources

Sensitivity of GNSS-R spaceborne observations to soil moisture and vegetation [PDF]

open access: yes, 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

Rancang Bangun, Uji Performansi dan Analisis Biaya Alat Pencampur Nutrisi

open access: yesTeknik, 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

Characterization of Nucleobases in Broadband Terahertz Spectra from 0.5 to 10 THz with the Air-Biased-Coherent-Detection Technique

open access: yesSensors, 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

Assessment of Spatial Structure of Groundwater Quality Variables Based on the Geostatistical Simulation [PDF]

open access: yesDesert, 2012
Our main objective in the present study was to assess the spatial variation of chemical and physical water properties. Prior to the design of groundwater quality monitoring networks, it is essential to investigate the spatial structure of the groundwater
Gh.R. Zehtabian   +2 more
doaj   +1 more source

Local boron doping quantification in homoepitaxial diamond structures [PDF]

open access: yes, 2010
The capability of transmission electronmicroscopy (TEM) using the high angle annular dark fieldmode (HAADF,also labelled Z-contrast) to quantify boron concentration, in the high doping range between 1019cm−3 and 1021cm−3, is demonstrated.
A.J. García   +26 more
core   +4 more sources

Identification of black plastics with terahertz time-domain spectroscopy and machine learning

open access: yesScientific Reports, 2023
Several optical spectroscopy and imaging techniques have already proven their ability to identify different plastic types found in household waste. However, most common optical techniques feasible for plastic sorting, struggle to measure black plastic ...
Paweł Piotr Cielecki   +5 more
doaj   +1 more source

High-precision THz-TDS via self-referenced transmission echo method.

open access: yesApplied Optics, 2020
Terahertz time-domain spectroscopy (TDS) is a powerful characterization technique which allows for the frequency-dependent complex refractive index of a sample to be determined. This is achieved by comparing the time-domain of a pulse transmitted through
J. Gorecki   +5 more
semanticscholar   +1 more source

Evaluating the groundwater quality of Damodar Fan Delta (India) using fuzzy-AHP MCDM technique

open access: yesApplied Water Science, 2021
In recent years, groundwater pollution has become increasingly a serious environmental problem throughout the world due to increasing dependency on it for various purposes.
S. Mahammad, A. Islam
semanticscholar   +1 more source

A novel approach to sustainable water treatment utilising Cocos nucifera and Luffa acutangula

open access: yesDesalination and Water Treatment
Water quality depends on Total Dissolved Solids (TDS), an indicator of harmful pollutants in the water. Therefore, the primary goal of the study is to eliminate TDS utilising the new Cocos nucifera and Luffa acutangula natural filtering technique.
Ganesan Ramachandran   +3 more
doaj   +1 more source

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