Results 1 to 10 of about 2,301,104 (288)

Novel external reinforcement device for gastrointestinal anastomosis in an experimental study [PDF]

open access: yesBMC Surgery, 2023
Background Anastomotic leakage has been reported to occur when the load on the anastomotic site exceeds the resistance created by sutures, staples, and early scars.
Hiro Hasegawa   +4 more
doaj   +2 more sources

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

open access: yesBuildings
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   +3 more
doaj   +3 more sources

Influence of Carbon Fibre Reinforced Polymer and Recycled Carbon Fibres on the compressive behaviour of self-compacting high-performance fibre-reinforced concrete [PDF]

open access: yesArchives of Civil Engineering, 2023
In recent years, carbon fibres have been extensively used to strengthen concrete structures. In most cases, the lamination process is carried out using epoxy resin as matrix.
Krzysztof Ostrowski, Kazimierz Furtak
doaj   +1 more source

Reinforcement Learning-based Spectrum Sharing for Cognitive Radio [PDF]

open access: yes, 2011
This thesis investigates how distributed reinforcement learning-based resource assignment algorithms can be used to improve the performance of a cognitive radio system.
Jiang, Tao
core   +6 more sources

Improving Exploration in Reinforcement Learning through Domain Knowledge and Parameter Analysis [PDF]

open access: yes, 2010
This thesis presents novel work on how to improve exploration in reinforcement learning using domain knowledge and knowledge-based approaches to reinforcement learning.
Grzes, Marek
core   +7 more sources

The Mechanical and Environmental Performance of Fiber-Reinforced Polymers in Concrete Structures: Opportunities, Challenges and Future Directions

open access: yesBuildings, 2022
The construction sector is well known for its critical environmental impact resulting from the consumed amounts of raw materials and the tremendous emissions of greenhouse gases.
Sami Sbahieh   +3 more
doaj   +1 more source

To the Definition the Deflections of Flexible Non-centrally Compressed Reinforced Concrete Struts Strengthened in the Transverse Direction with Composite Materials

open access: yesЖелезобетонные конструкции, 2023
An analysis of the calculation methods found in the normative literature on strengthening reinforced concrete structures with composite materials arranged in the transverse direction by the method of wrapping structures showed that there is no ...
D. R. Mailyan, S. V. Georgiev
doaj   +1 more source

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

open access: yesProduction Engineering Archives, 2023
Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading.
Selejdak Jacek   +3 more
doaj   +1 more source

Influence of Reinforcement Load Level on Bearing Capacity of RC Beams Externally Reinforced with СFRP

open access: yesЖелезобетонные конструкции, 2023
Most of the experimental investigations devoted to the study of the stress-strain state of bent reinforced concrete elements reinforced with carbon fiber-based polymer-composite materials have examined only unloaded beams or beams without preliminary ...
Gennadiy A. Smolyago   +2 more
doaj   +1 more source

Reconstruction of Reinforced Concrete Structures on The Example of Bridge Spans Damaged as a Result of Dynamic Impacts

open access: yesЖелезобетонные конструкции, 2023
The problem of restoring reinforced concrete structures that have received dynamic impacts (emergency as a result of collisions with vehicles, damage as a result of dismantling nearby structures, explosive impacts) is quite an urgent issue.
Oleg A. Simakov
doaj   +1 more source

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