Results 41 to 50 of about 177,091,919 (225)

A Method of Deflection of the Vertical Measurement Based on Phase Correction

IEEE Access, 2021
The combination of the strapdown inertial navigation system (SINS) and the global navigation satellite system (GNSS) is an ingenious means to measure the deflection of the vertical (DOV).
Wen An, Jiangning Xu, Miao Wu, Pengfei Jiang   +3 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

Deformation characteristics of ultra-deep circular shaft in soft soil: A case study

Underground Space
A circular shaft is often used to access a working well for deep underground space utilization. As the depth of underground space increases, the excavation depth of the shaft increases.
Yafei Qiao, Feng Xie, Zhanwei Bai, Jiafeng Lu, Wenqi Ding   +4 more
doaj   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Instability characteristics of the cracked roof rock beam under shallow mining conditions

International Journal of Mining Science and Technology, 2018
To establish the movement relationship for the roof breaking under shallow mining conditions, the mechanical model of the roof rock beam was built, then the structure instability process of the roof rock beam was analyzed.
Yanhai Zhao, Shuren Wang, Zhengsheng Zou, Linlin Ge, Fang Cui   +4 more
doaj   +1 more source

On the astrogeodetic deflections of the vertical in Japan.

Journal of Physics of the Earth, 1974
With respect to the observed astrogeodetic deflections of the vertical at 192 stations in Japan except Hokkaido, the topographic-isostatic eflections are estimated and then the error in the Japanese system of geodetic coordinates are examined in details.
openaire   +2 more sources

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Distribution of the Velocity Profile via Analytical and Three-Dimensional Numerical Vegetation Modeling [PDF]

Journal of Applied Fluid Mechanics
Understanding the ecological conditions of vegetation growth in water sources is vital to appraise the influence of vegetation on river engineering.
A. A. Hussain, M. A. Al-Obaidi, A. S. Mohammed, Y. M. John, F. L. Rashid   +4 more
doaj   +1 more source

Modified Reed Equation of Blast Load on Plate with Stiffener

Civil and Environmental Engineering, 2021
The purpose of this study is to analyze numerically the effect of explosions on orthotropic slabs which have partial fixity placement and stiffeners in the x direction, namely in the short span direction.
Buwono Haryo Koco, Alisjahbana Sofia W., Najid   +2 more
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

Advanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami, Hengzhe Ren, Erqian Dong, Ashkan Ghanbarzadeh‐Dagheyan, Chen Shen   +4 more
wiley   +1 more source