Results 41 to 50 of about 1,143,564 (302)

Comparative study of Steel-FRP, FRP and steel reinforced coral concrete beams in their flexural performance [PDF]

open access: yes, 2020
In this paper, a comparative study of Carbon Fiber Reinforced Polymer (CFRP) Bar and Steel-Carbon Fiber Composite Bar (SCFCB) reinforced coral concrete beams are made through a series experimental tests and theoretical analysis.
Fu, F., Huang, C., Wang, L., Zhang, J.
core   +1 more source

Experimental Study of Negative Skin Friction of Pile Group Foundations for Offshore Wind Turbines on Artificial Islands

open access: yesJournal of Marine Science and Engineering
Constructing offshore wind turbines on artificial islands is considered a viable option, but negative skin friction (NSF) is a significant adverse factor that cannot be ignored.
Yeyu Yan   +5 more
doaj   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

The behaviour of reinforced concrete slabs in fire [PDF]

open access: yes, 2010
In this paper a robust model is presented based on the previous layer procedure developed by the author to also take into account the effects of concrete spalling on the behaviour of concrete slabs under fire conditions.
Ali   +14 more
core   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Performance-based optimization of structures: theory and applications [PDF]

open access: yes, 2005
Performance-based Optimization of Structures introduces a method to bridge the gap between optimization theory and its practical applications to structural engineering.
Liang, Qing Quan
core  

Probabilistic modeling of chloride penetration with respect to concrete heterogeneity and epoxy-coating on the reinforcement [PDF]

open access: yes, 2019
The presented article demonstrates the probabilistic method based modeling of the 2D chloride ingress into reinforced concrete structures with respect to concrete heterogeneity and epoxy-coated steel reinforcement. Spatial change of concrete diffusion is
Konečný, Petr   +2 more
core   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Analysis of the Vertical Dynamic Response of SDCM Piles in Coastal Areas

open access: yesJournal of Marine Science and Engineering
The stiffened deep cement mixing (SDCM) pile, as a new type of rigid–flexible composite pile, significantly enhances the vertical bearing capacity of traditional precast piles, thus holding broad application prospects in the substructure construction of ...
Yeyu Yan   +4 more
doaj   +1 more source

Frequency-Based Cable Tension Identification Using a Nonlinear Model with Complex Boundary Constraints

open access: yesShock and Vibration, 2023
Accurate estimation of the cable force affects the bridges’ long-term integrity and serviceability directly. The frequency method is often used for cable tension testing in bridge engineering.
Wen-ming Zhang, Zhi-wei Wang
doaj   +1 more source

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