Results 31 to 40 of about 5,541 (264)

Usage of prestressed vertical bolts for retrofitting flat slabs damaged due to punching shear

Alexandria Engineering Journal, 2015
Sometimes, due to design mistakes or a change in the construction function results in heavier or additional loads, a flat slab may be failed by punching shear which is considered as a brittle failure.
Hamed S. Askar
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Structural Behavior of Full-Scale Novel Hybrid Layered Concrete Slabs Reinforced with CFRP and Steel Grids under Impact Load

Buildings
Reinforced concrete two-way slabs are important elements in the construction field, and their impact response under drop-weight impact is a complex mechanical issue that can cause the collapse of heavy structures.
Ahmed Abbas Ghali Abu Altemen, Mu’taz Kadhim Medhlom, Mustafa Özakça   +2 more
doaj   +1 more source

Behaviour of RC flat slabs with openings strengthened with CFRP

Case Studies in Construction Materials, 2021
Nine half-scale reinforced concrete continuous slabs with and without openings have been tested up to failure. The main objectives of this paper is to investigate the effect of the openings on the behavior of the flat slabs and study the effect of using ...
Mahmoud A. El-Mandouh, Mostafa S. Omar, Ahmed S. Abd El-Maula   +2 more
doaj   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Column-Slab Connection In Timber Flat Slabs

, 2020
With the development of large cross laminated timber (CLT) plates, a new field of possibilities for timber construction has opened. Combined with the invention of a rigid, momentresisting connection between CLT plates, it is possible to create structures like it was so far only achievable with reinforced concrete. The CLT elements can be placed next to
openaire   +2 more sources

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source

Strengthening of RC flat slabs against punching shear with GFRP laminates adopting a hybrid technique

Engineering and Applied Science Research, 2023
Punching shear failure at the slab-column connection is one of the foremost concerns associated with reinforced concrete (RC) flat slabs. Many strengthening techniques of existing RC flat slabs against punching shear failure have been developed, one of ...
Amr M. Ibrahim, Mohamed S. Fawzy
doaj  

Reinforced concrete flat slabs with openings at different distances from the column

Revista IBRACON de Estruturas e Materiais, 2020
: The increase in the use of flat slabs and the need of the openings for the passage of installations, such as hydraulic and electrical, which significantly reduces the punching shear resistance capacity of the slab, makes the understanding of the ...
Diego da Silva Lourenço, Elyson Andrew Pozo Liberati, Marília Gonçalves Marques, Luiz Carlos de Almeida, Leandro Mouta Trautwein   +4 more
doaj   +1 more source