Results 61 to 70 of about 144 (128)

Discharge Experiment and Structure Optimisation Simulation of Impulse Sound Source

Energies
The wave frequency and energy of traditional piezoelectric emission sources used in acoustic logging are limited, which results in an inadequate detection resolution for measuring small-scale geological formations.
Xu Gao, Jing Zhou, Haiming Xie, Xiao Du
doaj   +1 more source

Arc‐ZTE: Continuously‐Slewed Zero‐TE Imaging With Incoherent Temporal Sampling for Near‐Silent Dynamic MRI

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1726-1740, October 2026.
ABSTRACT Purpose To enable flexible dynamic and DCE MRI with low acoustic noise and high spatiotemporal resolution using zero echo time (ZTE) imaging. Methods This work proposes Arc‐ZTE, a technique in which the readout gradients of ZTE are continuously‐slewed to form arcs in k‐space that are sequentially rotated to yield an incoherent trajectory ...
Shreya Ramachandran, Tobias C. Wood, Gavin Zhang, Ali B. Syed, Shreyas S. Vasanawala, Michael Lustig   +5 more
wiley   +1 more source

Research and Application of High-Resolution Real-Time Extraction of P-Wave Slowness

Cejing jishu
Acoustic logging is one of the key technologies in oil and gas exploration, where P-wave slowness can be applied for lithology classification, mechanical parameter calculation, and optimization of drilling and completion schemes.
GUO Shangjing, SU Yuanda, ZHANG Liwei, ZHAO Long, LING Zichen   +4 more
doaj   +1 more source

Quantifying Soft‐Surgery in Cochlear Implantation: Multimodal Data From 30 International Specialists

The Laryngoscope, Volume 136, Issue 9, Page 3990-3997, September 2026.
Objective data from 30 specialist cochlear implant surgeons showed that surgical handling strongly influences intracochlear mechanical stress during implantation. Surgeons with fewer than 50 lifetime insertions performed significantly worse than more experienced colleagues, while self‐assessment did not reflect objective performance in any group ...
Philipp Aebischer, Georgios Mantokoudis, Marco Caversaccio, Stefan Weder   +3 more
wiley   +1 more source

BODIPY‐based J‐aggregates: From supramolecular chemistry to NIR bioimaging and phototherapies

Bulletin of the Korean Chemical Society, Volume 47, Issue 8, Page 951-982, August 2026.
BODIPY dyes form ordered J‐aggregates through controlled supramolecular self‐assembly, producing narrow, red‐shifted absorption bands with small Stokes shifts. This review highlights design strategies governing J‐aggregation, structure–property relationships, and applications in sensing, bioimaging, and phototherapy, guiding functional BODIPY‐based ...
Pooja Sharma, Yeonkyeong Lee, Youngmi Kim   +2 more
wiley   +1 more source

Drilling Sound Analysis and Its Application in Lithology Identification

Geosciences
Real-time lithology identification while drilling is widely applied in oil and gas exploration, development drilling, geo-steering, unconventional resource extraction, well logging, and environmental monitoring, enhancing efficiency and accuracy in ...
Aichuan Bai, Xiangyu Fan, Muming Xia, Xiao Zou, Changchun Zou, Panpan Fan   +5 more
doaj   +1 more source

Enhancing Rock Strength Prediction and Features Selection by Coupling Well Log Data and Deep Learning Approaches in Reservoir Geomechanics

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 11, Page 4724-4738, 10 August 2026.
ABSTRACT Accurate rock strength parameters play a vital role in petroleum and mining operations for sustainable drilling activities, and wellbore stability analysis. This study investigates the applicability of deep learning techniques for assessing data‐driven models, and to conduct parametric sensitivity examination for feature attributes ranking to ...
Mohammad Islam Miah, Md. Shakil Rahaman, Travis Wiens   +2 more
wiley   +1 more source

Intrinsic noise within viscous solids and impact on material exploration

Frontiers in Physics
This paper introduces the concept of the intrinsic-noise-atom (i.e., intrinsic-noise-element) and its applications. We propose a method to extract intrinsic noise generated within viscous solids and discuss its impact on material exploration and analysis.
Lin Fa, Lin Fa, Shuangshuang Meng, Huiting Yang, Jinyue Li, Yaming Hu, Kaiqiang Zhang, Yulin Xu, Meishan Zhao   +8 more
doaj   +1 more source

Limited connectivity of zooplankton communities across the Labrador Front: role of physical oceanography, insights from individual motility

Oikos, Volume 2026, Issue 8, August 2026.
Near the western margin of the highly productive Labrador Sea, the Labrador Current creates a large and steep oceanographic front between the Arctic‐origin shelf waters and the Atlantic offshore waters (i.e. the Labrador Front), presumably segregating or accumulating plankton communities.
Laure Vilgrain, David Coté, Frédéric Cyr, Gérald Darnis, Cyril Aubry, Genevieve Johnson, Rodd Laing, Maxime Geoffroy   +7 more
wiley   +1 more source

A logging evaluation method for geological engineering "double sweet spot" for shallow marine shale gas: A case study of the Luzhai Formation in the northern Guizhong Depression

地质科技通报
Objective The marine organic-rich shale of the Luzhai Formation of the northern Guizhong Depression is an important replacement field for shale gas exploration in the Dian-Qian-Gui Basin.
Ming ZHONG, Yuyue HUANG, Yinglun QIN, Kangjun CHEN, Guiwen WANG, Seqiang ZHUO, Shaocheng BI, Wenshi LU, Haijing KANG, Wenle DANG, Jin LAI   +10 more
doaj   +1 more source