Results 131 to 140 of about 5,369 (265)

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

Deep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan, Fangkai Liu, Sen Zhu, Guangyou Zhu, Haiping Huang   +4 more
wiley   +1 more source

Structural response of RC beam-column joints reinforced with smart alloys and polyvinyl alcohol fibers. [PDF]

Sci Rep
Alqarni AS, Alshannag MJ, Higazey MM.
europepmc   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

Seismic response and fragility analysis of BRB-retrofitted highway pile-slab structures with an improved load-transmission path. [PDF]

Sci Rep
Shen Y, Liu Y, Chen L, Hu Z, Bao W, Xiang N.   +5 more
europepmc   +1 more source

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

Deep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi, Shimin Wang, Chang Liu, Zhiyu Lin, Chuan He   +4 more
wiley   +1 more source

Association Between the 2023 Kahramanmaraş Double Earthquake and Pathogen Distribution in Periprosthetic Joint Infection After Knee Arthroplasty. [PDF]

J Clin Med
Çiloğlu O, Karaali E, Uslu H, Çiçek O, Gökmen MY, Pazarcı Ö, Çıtak M.   +6 more
europepmc   +1 more source

Cross‐Entropy of Power Spectral Density Function: A Modal Identification Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The power spectral density (PSD) function of measured structural response contains a significant amount of information, including the modal parameters (natural frequencies, damping ratios). Output‐only system identification or modal identification technique can be used for extracting such modal parameters from the measured response or its ...
Su‐Hong Kim, Jae‐Seung Hwang, Dae‐Kun Kwon, Ahsan Kareem   +3 more
wiley   +1 more source

Pendulum column with inclined negative stiffness as a novel hybrid seismic isolation mechanism integrated into soil with pile-like characteristics. [PDF]

Sci Rep
Azizi A, Barghian M.
europepmc   +1 more source

Seismic Performance and Vibration‐Based Damage Identification of Two‐Storey Balloon‐Framed CLT Shear Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT While cross‐laminated timber (CLT) is increasingly utilized in lateral force‐resisting systems in mass timber construction, research has predominantly focused on platform‐type construction. Balloon‐type CLT shear wall systems offer distinct structural advantages, notably the elimination of cumulative perpendicular‐to‐grain compression and a ...
Samira Mohammadyzadeh, Houman Ganjali, Jianhui Zhou, Thomas Tannert   +3 more
wiley   +1 more source

Fused ensembles of dynamic-rupture earthquake simulations to accelerate Bayesian inference. [PDF]

GEM
Kurapati V, Schneller D, Seelinger L, Niu Z, Gabriel AA, Bader M.   +5 more
europepmc   +1 more source