Results 101 to 110 of about 6,610 (296)

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Numerical simulation study on the characteristics and propagation attenuation of vibration signals in freezing pipe fracture

Deep Underground Science and Engineering, EarlyView.
This research study employs analysis system (ANSYS) fluid–structure interaction simulations to investigate the generation and attenuation of vibration signals resulting from freezing pipe fractures in artificial ground freezing projects. By evaluating key variables—including frozen soil elastic modulus, brine inlet pressure, and external pipe pressure ...
Yi Cao, Yansen Wang, En Chen, Meng Zhao
wiley   +1 more source

AI-driven spectral analysis of soil heaving for automated surveys in rail transport infrastructure

AI in Civil Engineering
The expansion of rail transport infrastructures necessitates accurate and efficient soil surveys to ensure long-term stability and performance, particularly in regions prone to soil heaving.
Artem Zaitsev, Andrey Koshurnikov, Vladimir Gagarin, Denis Frolov, German Rzhanitsyn   +4 more
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Experimental Study on Flow Heat Transfer Characteristics of Lead-bismuth Eutectic under Heaving Condition

Yuanzineng kexue jishu, 2023
Lead-based reactor coolant has high thermal conductivity, good thermal expansion and strong natural circulation ability, which has outstanding advantages in safety, economy and miniaturization.
ZHAO Yafeng;LIU Zhipeng;WANG Chenglong;YU Qifan;SU Guanghui;QIU Suizheng;TIAN Wenxi
doaj  

Tick‐Tock, the Time Has Come: Leveraging TikTok to Understand, Prevent, and Treat Eating Disorders

International Journal of Eating Disorders, EarlyView.
ABSTRACT Objective TikTok—a highly engaging social media platform with a powerful algorithm that displays short videos—has become massively popular in recent years. As research highlights the concerning relationship between image‐based content on social media and disordered eating symptoms, TikTok may serve as an optimal platform to understand eating ...
Macarena Kruger, Isabella Pruscino, Caroline G. Martin, Elizabeth A. Velkoff   +3 more
wiley   +1 more source

Unsteady Characteristics of Thrust and Lift Acting on a Heaving Airfoil

, 2005
It is known that an oscillating airfoil can produce a driving force through the generation of a reversed Karman vortex street, and this can be expected to be a new highly effective propulsion system.
55624483319, 80171742, Fuchiwaki, Masaki, 471, タナカ, カズヒロ, 483, 485, 254, Yang, Chang-Jo, 田中, 和博, Tanaka, Kazuhiro, 6602729908, 梁, 昌照, 渕脇, 正樹, 60346864, フチワキ, マサキ   +15 more
core   +2 more sources

Species traits mediate the abundant‐center patterns in ground‐dwelling mammal and bird species in China

Ecography, EarlyView.
The abundance center hypothesis (ACH) posits that species abundance peaks at distribution centers; however, empirical support remains inconsistent. This study tested the generality of the ACH and investigated species traits as mediators of abundance–distance relationships.
Ludan Zhang, Baoming Zhang, Minghui Zhou, Haoting Duan, Zhipeng Xie, Xinglin Huo, Jiehua Yu, Jiekun He   +7 more
wiley   +1 more source

Nanostructured Optical Superabsorbers from Carbon Nanotube Forest for Heat Management Using Environmental Blackbody Radiation from the Visible to Mid‐Infrared

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Our computational model of the optical absorption from multiwalled carbon nanotubes suggests the optical absorption depends strongly on the in‐plane electrical conductivity, and weakly on the through‐plane conductivity. Such strong absorption enables solar‐to‐thermal conversion for heat scavenging in cold climates and radiative cooling in hot climates,
José V. Anguita, Zongtao Zhang, Kai Yang, Diane J. Roth, Charles J. Footer, Sajad Haq, Peter H. Aaen, Sunday Ekpo, S. Ravi P. Silva   +8 more
wiley   +1 more source