Results 91 to 100 of about 22,379,061 (281)

Experimental Study on Influence of Borehole Arrangement on Energy Conversion and Acoustic Characteristics of Coal-Like Material Sample

open access: yesShock and Vibration, 2020
This paper examines the effects of borehole arrangement on the failure process of coal-like materials based on its energy conversion and acoustic characteristics from the perspectives of energy, AE energy, AE spectrum, and frequency band.
Chuanbo Hao   +3 more
doaj   +1 more source

How well do the volunteers label land cover types in manual interpretation of remote sensing imagery?

open access: yesInternational Journal of Digital Earth
High-quality samples for training and validation are crucial for land cover classification, especially in some complex scenarios. The reliability, representativeness, and generalizability of the sample set are important for further researches.
Yan Wang   +5 more
doaj   +1 more source

Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique [PDF]

open access: yes, 2013
Deformation of the ferromagnetic material, known as magnetostriction, causes vibrations and noise of electrical machines and transformer cores. A setup by using heterodyne laser interferometers has been built to measure the magnetostriction strains as a
Gorji Ghalamestani, Setareh   +3 more
core  

Preparation of Zeolitic Imidazolate Framework and Carbon Nanofiber Composites for Nitrofurazone Detection

open access: yesMicro
Metal–organic frame (MOF) materials may have the advantages of a regular pore structure, large porosity, and large specific surface area, which could provide better catalytic activity, but they have some disadvantages in electrocatalysis.
Haobo Wang   +6 more
doaj   +1 more source

Effects of combination mode on mechanical properties of bi-material samples consisting of rock and coal

open access: yesJournal of Materials Research and Technology, 2022
We performed uniaxial compression tests on coal–rock, rock–coal, and rock–coal–rock bi-material samples. We studied their mechanical behavior using an acoustic emission monitoring and digital speckle strain measurement systems.
Faxin Li   +4 more
doaj  

Effect of magnetic viscosity on magnetic property measurements of hard magnetic materials

open access: yesСтандартные образцы, 2018
Purpose. This paper is devoted to investing of the effect of magnetic viscosity on the results of measurements of the main hysteresis characteristics of hard magnetic alloys in an open magnetic circuit of vibrating sample magnetometer.Materials and ...
A. V. Perepelkina   +3 more
doaj   +1 more source

Acoustic radiation stress measurement [PDF]

open access: yes, 1987
Ultrasonic radio frequency tone-bursts are launched into a sample of material tested. The amplitude of the tone-bursts and the slope of the resulting static displacement pulses are measured.
Cantrell, John H., Jr., Yost, William T.
core   +1 more source

Strongly nonlinear waves in capillary electrophoresis

open access: yes, 2012
In capillary electrophoresis, sample ions migrate along a micro-capillary filled with a background electrolyte under the influence of an applied electric field.
F. Kohlrausch   +4 more
core   +1 more source

BioSAXS Sample Changer: a robotic sample changer for rapid and reliable high-throughput X-ray solution scattering experiments

open access: yesActa Crystallographica Section D: Biological Crystallography, 2015
A robotic sample changer for solution X-ray scattering experiments optimized for speed and to use the minimum amount of material has been developed. This system is now in routine use at three high-brilliance European synchrotron sites, each capable of ...
A. Round   +11 more
semanticscholar   +1 more source

Nozzle extraction process and handlemeter for measuring handle [PDF]

open access: yes, 1978
Method and apparatus for quantitatively measuring the handle of fabrics and other flexible materials is presented. Handle is that term used to refer to the qualities of drapability, flexibility, compressibility, foldability, stretchability, pliability ...
Alley, V. L., Jr., Mchatton, A. D.
core   +1 more source

Home - About - Disclaimer - Privacy