Zobrazeno 1 - 10
of 18 152
pro vyhledávání: '"longitudinal wave"'
Publikováno v:
Automatika, Vol 65, Iss 4, Pp 1506-1516 (2024)
The effect of the void shape on cut blasting is investigated by establishing a damage analysis model for a void using an improved calculation formula for stress on the wall of the void. Additionally, an optimization scheme is provided for the “squa
Externí odkaz:
https://doaj.org/article/cb17b7d7bb3b49b4b5d9ae9681a3ce44
Publikováno v:
矿业科学学报, Vol 9, Iss 4, Pp 586-596 (2024)
This study investigates the fracture characteristics and damage mechanism of granite after treatment under different heating rates. The cracked straight-through Brazilian disc(CSTBD)specimen was used for high-temperature treatment with four heating r
Externí odkaz:
https://doaj.org/article/849b90da50df4cefa196fde2bff1308a
Publikováno v:
Results in Physics, Vol 64, Iss , Pp 107918- (2024)
In this study, we investigate the longitudinal wave equation (LWE) with the M−fractional derivative, which describes the propagation of longitudinal waves along a rod while incorporating interactions between mechanical, electrical, and magnetic fie
Externí odkaz:
https://doaj.org/article/d16d3e64e9fa435495372c79754969bb
Autor:
Liao, Xiaowei a, Zhang, Zhongyuan a, Wang, Weinan a, Ban, Huiyong b, Wu, Xiaoyu c, Wang, Le d, ⁎
Publikováno v:
In Journal of Constructional Steel Research March 2025 226
Publikováno v:
Записки Горного института, Vol 266, Pp 260-271 (2024)
The paper considers an approach to localizing the intervals of development of geomechanical processes in underground structures based on the classification and transformation of seismic data. The proposed approach will make it possible to identify th
Externí odkaz:
https://doaj.org/article/e2fd28a04716423396df8ecce6dedbe7
Autor:
V. S. Zhukov, V. V. Motorygin
Publikováno v:
Georesursy, Vol 24, Iss 3, Pp 84-89 (2024)
The results of laboratory studies of nearly 1,300 samples from 50 wells of reservoirs of three productive terrigenous horizons represented by sandstones and siltstones are considered. Intergranular and fractured components mainly make up the porosity
Externí odkaz:
https://doaj.org/article/70922fb37bdb4edfa31894f3a78dde67
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 605-614 (2024)
In view of the non-destructive and non-contact features, laser ultrasonic (LU) technology has long been the effective method to detect tiny defects for laser powder bed fusion (LPBF) additive manufactured specimens. Of larger concern is the variation
Externí odkaz:
https://doaj.org/article/3212f73d3a574b5598de34d5e8eb70de
Publikováno v:
Shuiwen dizhi gongcheng dizhi, Vol 50, Iss 6, Pp 193-203 (2023)
In southwest China, carbonate rocks are widely distributed. It has unique dissolution features which bring a lot of resistance to engineering constructions. In order to explore the dissolution damage regular of layered carbonate rocks in acidic water
Externí odkaz:
https://doaj.org/article/8a842f4b6ac842bda11dd0c9f907a698
Publikováno v:
Sensors, Vol 24, Iss 17, p 5843 (2024)
High-voltage cables are the main arteries of urban power supply. Cable accessories are connecting components between different sections of cables or between cables and other electrical equipment. The stress in the cold shrink tube of cable accessorie
Externí odkaz:
https://doaj.org/article/c541465af4924ae5b6b1e89e893766e9
Publikováno v:
Photonics, Vol 11, Iss 9, p 805 (2024)
For laser ultrasound in the thermoelastic mechanism, excitation of ultrasonic body wave signal is weak, it is not easy to realize the detection of deep defects inside the workpiece. While the ablation mechanism produces a high and practical ultrasoni
Externí odkaz:
https://doaj.org/article/643e393ad3b94782b3029cb58e9033ff