Results 241 to 250 of about 220,127 (302)

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

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

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Numerical investigation of ultrasound-induced acoustic streaming and shear stress for blood clot manipulation. [PDF]

Sci Rep
Hisham A, Hassan MA, Wahba AA.
europepmc   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Diagnostic Performance of Parotid Shear-Wave Elastography for Predicting Histopathological Positivity in Patients with Suspected Primary Sjögren's Syndrome. [PDF]

Diagnostics (Basel)
Unal O, Dolek BA, Kor A, Alcın ES, Erten S.   +4 more
europepmc   +1 more source

Kelp-stone ratio and bed roughness control green gravel stability under hydrodynamic forces. [PDF]

PLoS One
Paul M, Kerpen NB, Moghimi A.
europepmc   +1 more source

Ultrasound Elastography for the Assessment of Sarcopenia. [PDF]

J Clin Med
Zhang C, Kang L.
europepmc   +1 more source

Advances in Non-Invasive Myocardial Stiffness Assessment and Clinical Applications in Hypertrophic Cardiomyopathy. [PDF]

Rev Cardiovasc Med
Gao Y, Qi N, Gao H, Deng Y, Liu Y.
europepmc   +1 more source

Hoffa's Test-Positive Knees Exhibit Increased Stiffness in the Lateral Region of the Infrapatellar Fat Pad: A Shear Wave Elastography Study. [PDF]

Cureus
Komatsu Y.
europepmc   +1 more source