Results 11 to 20 of about 22,379,061 (281)

Application of fourier transform infrared (FTIR) spectroscopy in sample preparation: Material characterization and mechanism investigation

open access: yesAdvances in Sample Preparation
The principle of Fourier Transform Infrared (FTIR) spectroscopy is based on atoms vibration and rotation, and it has become a universal and widely used spectral methodology to detect the internal molecular structures in all kinds of fields.
Yahui Gong, Xuerong Chen, Wei Wu
doaj   +2 more sources

Productive and nutritional potential of Sudan grass

open access: yesАграрная наука Евро-Северо-Востока, 2023
Sudan grass is characterized by drought and heat resistance and is the best among annual and perennial bluegrass feed crops by the content of the main nutrient element - protein.
N. A. Kovtunova, E. A. Shishova
doaj   +1 more source

Influence of different polishing materials in the material removal of steel samples [PDF]

open access: yesProduction & Manufacturing Research, 2017
The quality of injection moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve and control the surface finish of the mould it is important to be able to keep the material removal constant during the polishing process of these moulds.
Anjali Desilva   +3 more
openaire   +3 more sources

A Method for Predicting the Creep Rupture Life of Small-Sample Materials Based on Parametric Models and Machine Learning Models

open access: yesMaterials, 2023
In view of the differences in the applicability and prediction ability of different creep rupture life prediction models, we propose a creep rupture life prediction method in this paper. Various time–temperature parametric models, machine learning models,
Xu Zhang   +5 more
semanticscholar   +1 more source

Simulation of material flow through a sample divider [PDF]

open access: yes, 2018
The prerequisite for a modem approach to innovative procedures of the development of current or even newly created equipment for the transport of particulate materials is the utilization of simulation methods, such as the Discrete Element Method (DEM ...
Gelnar, Daniel   +5 more
core   +2 more sources

BAMline-A real-life sample materials research beamline.

open access: yesJournal of Chemical Physics, 2023
With increasing demand and environmental concerns, researchers are exploring new materials that can perform as well or better than traditional materials while reducing environmental impact.
A. Guilherme Buzanich   +10 more
semanticscholar   +1 more source

Statistical Homogenization of Elastic and Fracture Properties of a Sample Selective Laser Melting Material

open access: yesApplied Sciences, 2023
Selective laser melting (SLM) is an additive manufacturing technique commonly used in the rapid prototyping of components. The complexity of the SLM microstructure poses a unique challenge to deriving effective mechanical properties at different length ...
Ryan P. Connor   +6 more
doaj   +1 more source

THE ESTIMATION OF PEAS COLLECTION IN THE ALTAI

open access: yesЗерновое хозяйство России, 2019
The article emphasizes the importance of peas as a source of vegetative protein, and indicates on insufficient areas under peas both in Russia and in the Altai.
S. K. Shchukis, E. R. Shchukis
doaj   +1 more source

Reference ranges for free calcium in venous serum

open access: yesBioingeniøren, 2021
After obtaining an informed consent, venous blood samples were taken in gel tubes without additives from 125 healthy blood donors for analysis of free calcium in serum. In addition, pH was measured, and free calcium standardized to pH 7.40 calculated. In
Randi Jensen   +2 more
doaj  

EXPERIMENTAL TECHNIQUE TO MEASURE THORON GENERATION RATE OF BUILDING MATERIAL SAMPLES USING RAD7 DETECTOR [PDF]

open access: yes, 2013
Thoron (220Rn) is the second most abundant radon isotope in our living environment. In some dwellings it is present in significant amount which calls for its identification and remediation. Indoor thoron originates mainly from building materials. In this
Csige, István   +2 more
core   +1 more source

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