Results 1 to 10 of about 780,910 (188)

What Quantity Appears on the Vertical Axis of a Normal Distribution? A Student Survey

open access: yesJournal of Statistics and Data Science Education, 2021
How accurately can final-year students majoring in statistics, physics, and finance label the vertical axis of a normal distribution, explain their label, identify units, and answer a question about the impact of horizontal-axis rescaling?
J. Scott Chaput   +2 more
doaj   +1 more source

Numerical simulation of damage and inelastic deformation of porous thermal barrier coatings system

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Thermal barrier coating (TBC) is widely applied to gas turbine blade surface to protect the metallic substrate from high-temperature combustion gas flow.
Wanjun ZHANG   +2 more
doaj   +1 more source

Localization of Cracks in Concrete Structures Using an Unmanned Aerial Vehicle

open access: yesSensors, 2022
Active research on crack detection technology for structures based on unmanned aerial vehicles (UAVs) has attracted considerable attention. Most of the existing research on localization of cracks using UAVs mounted the Global Positioning System (GPS ...
Hyun-Jung Woo   +5 more
doaj   +1 more source

Experimental Study on Mechanical Properties and Cracking Behaviors of T-Shaped Flaw-Contained Rock-like Materials Under Cyclic Loading

open access: yesFrontiers in Earth Science, 2021
Geotechnical hazards such as debris flows, rock falls in slopes, rock collapse, and rockburst in underground mining or caverns are tightly correlated to the mechanical behavior of natural rock mass stability. Strength and failure mode of the natural rock
Lan Cui   +6 more
doaj   +1 more source

Research on the crack of thermo-forming of aviation sandwich structure composed of composite materials and paper honeycomb

open access: yesHangkong gongcheng jinzhan, 2023
During the forming of aramid paper honeycomb sandwich component of aircraft composites in the autoclave, the structure bears thermo-mechanical coupling case, and it may exist the phenomenon of the honeycomb crack during the forming.
CAI Yujin   +7 more
doaj   +1 more source

Monitoring the internal structure behaviour of alkali-activated slag paste: effect of the curing mode

open access: yesActa Polytechnica, 2023
This paper deals with the monitoring of the internal structure behaviour of an alkaliactivated slag (AAS) paste. The slag was activated with a 4M solution of sodium hydroxide.
Petr Nápravník   +4 more
doaj   +1 more source

Crack Growth Behavior through Wall Pipes under Impact Load and Hygrothremal Environment

open access: yesAl-Khawarizmi Engineering Journal, 2018
This research concerns study the crack growth in the wall of pipes made of low carbon steel under the impact load and using the effect of hygrothermal (rate of moisture 50% and 50℃ temperature).
Ali Jamal Khaled, Ahmed Abdul Hussain
doaj   +1 more source

Characterization of the Crack and Recrystallization of W/Cu Monoblocks of the Upper Divertor in EAST

open access: yesApplied Sciences, 2023
The microstructure of and damage to the upper divertor components in EAST were characterized by using metallography, EBSD, and SEM. Under the synergistic effect of heat load and plasma irradiation, cracking, recrystallization, and interface debonding ...
Ya Xi   +7 more
doaj   +1 more source

Colapso de la cubierta metálica de un polideportivo; patologías singulares y recurrentes

open access: yesRevista ALCONPAT, 2012
RESUMEN En ocasiones se producen patologías que aun siendo singulares como es el caso que se presenta, ya se han producido anteriormente, y pese a ello, no se ha sabido transmitir las enseñanzas de esas tipologías de daños, y vuelven a repetirse.
V. Alegre, V. Ródenas, S. Villalba
doaj   +1 more source

Probabilistic Risk Assessment for Life Extension of Turbine Engine Rotors

open access: yesMetals, 2022
Maintaining the component service life beyond its historical limits requires the ability to accurately quantify component reliability and address the uncertainties in material responses.
Jace A. Carter, Tarun Goswami
doaj   +1 more source

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