Results 61 to 70 of about 9,010 (266)

Strengthening of Reinforced Concrete Hydraulic Structures with External Reinforcement System Made of Carbon Fiber-Based Composite Materials with Development of Calculation Recommendations

Buildings
During the long-term operation of hydraulic structures under the action of complex loads and impacts, non-design changes occur, which lead to a decrease in the bearing capacity and safety and, accordingly, to the need for structural reinforcements ...
Oleg Rubin, Dmitry Kozlov, Anton Antonov, Junhao Zhang   +3 more
doaj   +1 more source

Multimodal Haptic Perception Through Synergistic Nanocomposite Sensor Arrays

Advanced Materials Technologies, EarlyView.
Multi‐modal fingertip haptics are advanced through a bioinspired &vertical‐via' electronic skin architecture. A confined PDMS/MWCNT/NiNP nanocomposite, sitting at the percolation threshold, enables tactile, thermal, and magnetic sensing. A unique via‐density gradient and dedicated &Un‐Touch' reference nodes provide robust spatial resolution and signal ...
Amos Bardea, Fernando Patolsky
wiley   +1 more source

Experimental and computational studies on the effectiveness of strengthening the concrete floor slabs of a hydroelectric power plant's powerhouse through the use of an external reinforcement system involving carbon tape application. Part I [PDF]

Нанотехнологии в строительстве
Introduction. In accordance with the Federal Law of the Russian Federation ”On the Safety of Hydraulic Structures“, it is necessary to ensure the long-term safety and reliability of operating structures at hydroelectric power plants (HPPs).
Oleg D. Rubin, Dmitry V. Kozlov, Anton S. Antonov, Ilya M. Galimov, Alexander S. Anshakov   +4 more
doaj   +1 more source

Experimental Investigation on the Ductility of Concrete Deep Beams Reinforced with Basalt-Carbon and Basalt-Steel Wire Hybrid Composite Bars

Shock and Vibration, 2021
Using steel bars in corrosive conditions imposes a high cost on concrete elements. This is due to corrosion of steel bars. In order to eliminate this issue, the use of composite materials in civil engineering practices has become an area of focus because
Mohammadamin Mirdarsoltany, Alireza Rahai, Farzad Hatami   +2 more
doaj   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Strengthening Polymer Concrete with Carbon and Basalt Fibres

Applied Sciences
To date, composite materials, such as polymer concrete, have found wide application in various industries due to their unique properties combining high strength, resistance to aggressive media and durability.
Igbayeva Akzharkyn, Kassym Yelemessov, Dinara Baskanbayeva, Nikita V. Martyushev, Vadim Y. Skeeba, Vladimir Yu. Konyukhov, Tatiana A. Oparina   +6 more
doaj   +1 more source

From Pores to Pavement: Advanced Modeling of Aluminosilicates for Scalable Carbon Capture in Concrete

Advanced Science, EarlyView.
This study presents a transferable modeling framework for carbon capture using aluminosilicates, integrating Universal Isotherm Modeling with experimental data. It reveals how ultramicropores, alumina content, and amine functionalization influence CO2 adsorption energetics.
Pooja Anil Kumar Nair, Jéssica de O. N. Ribeiro, Murilo Daniel de Mello Innocentini, Kevin Paine, Juliana Calabria‐Holley   +4 more
wiley   +1 more source

Experimental studies of reinforced concrete structures of hydraulic structures strengthened with composite materials

Structural Mechanics of Engineering Constructions and Buildings, 2019
Relevance. During the operation process (first of all, long-term operation) of hydraulic structures, it becomes necessary to strengthen their reinforced concrete structures.
Kirill E. Frolov
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source