Results 41 to 50 of about 49,323 (257)

Evaluation of Structural Situation of Hydraulic Structure after 35 Years in Service, A Case Study: Intermediate Regulator [PDF]

JES: Journal of Engineering Sciences
Hydraulic regulators are essential components of Egypt’s irrigation network and play a critical role in controlling water distribution and ensuring the continuous operation of downstream infrastructure.
Mohamed El Sayed, Asmaa shokir, Dina Emarah   +2 more
doaj   +1 more source

Identification of Unstable Subsurface Rock Structure Using Ground Penetrating Radar: An EEMD-Based Processing Method

Applied Sciences, 2020
Surrounding rock quality of underground caverns is crucial to structural safety and stability in geological engineering. Classic measures for rock quality investigation are destructive and time consuming, and therefore technology evolution for ...
Yang Jin, Yunling Duan
doaj   +1 more source

Multifunctional Catechol‐Functionalized Cellulose Hydrogels for the Minimally Invasive Treatment of Acute Optic Nerve Injuries

Advanced Healthcare Materials, EarlyView.
Catechol‐functionalized cellulose hydrogels are developed as injectable, bioadhesive platforms for retinal neuroprotection. The hydrogels exhibit tunable rheological and mechanical properties, strong tissue adhesion, and sustained antioxidative activity.
Kai‐Hsiang Chang, Yi‐Ke Lin, Wei‐Li Chen, Ta‐Ching Chen, Jiashing Yu   +4 more
wiley   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Mechanical properties of rock under uniaxial compression tests of different control modes and loading rates

Scientific Reports
To study the influence of control mode and loading rate on mechanical property of rock, uniaxial compression tests of four types of rocks (gray sandstone, red sandstone, mudstone and granite) are carried out under axial strain control mode and lateral ...
Zhilei He, Guoli Wu, Jun Zhu
doaj   +1 more source

Improving Water Diversion Efficiency in Converging Side Weirs through Side Vane Installation: a numerical simulation [PDF]

علوم و مهندسی آبیاری
Side weirs are important components in irrigation and drainage systems, used for controlling and diverting flow. Given the advantages of side weirs in converging channels, improving the hydraulic performance of these structures is essential.
Kosar Neysi, Mehdi Daryaee, Seyed Mahmood Kashefipour, Amirreza Shahriari, Mohammadreza Zayeri   +4 more
doaj   +1 more source

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

Advanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum, Kai P. Barbian, Florian Neuhaus, Gerrit Sitarz, Carolin Nölke, Sebastian V. Jansen, John Linkhorst, Lukas T. Hirschwald, Sebastian Brosch, Christian Certa, Ulrich Steinseifer, Matthias Wessling, Jutta Arens, Arjang Ruhparwar, Bettina Wiegmann   +14 more
wiley   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

Experimental Insights into Hydraulic Jump Roller Length: The Impact of Compound Geometry, Slope, and Bed Roughness [PDF]

Journal of Applied Fluid Mechanics
This experimental investigation examines the relative roller length (Lr/h1) of hydraulic jumps taking place in composite rectangular channel featuring positive inclinations and roughened minor beds, aiming to address gaps in understanding the effects of ...
I. Herri, S. Kateb, A. Ghomri, H. Khechiba, D. Besser   +4 more
doaj   +1 more source

Simulation of Scour at Bridge Supports

Građevinar, 2020
Groups of piers are used on bridges to minimise scour around bridge supports. The prediction of scour around piers due to interaction of vortices around bridge piers is more complex compared to scour prediction around a single pier.
Yasser Moussa, Mahoud Atta
doaj   +1 more source