Results 31 to 40 of about 2,496 (269)

Evaluation of dynamic behavior of waffle slab to gym center

Latin American Journal of Solids and Structures
In Brazil, the use of reinforced concrete waffle slab in multi-story buildings is widespread nowadays. These buildings are projected for different purposes such as fitness centers, supermarkets, parking garages, offices and residential units.
Yuri Cláudio Vieira da Costa, Tereza Denyse de Araújo   +1 more
doaj   +1 more source

A Termite‐Inspired Alternative to Cement

Advanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev, Peter Fratzl, Emeline Raguin, Markus Antonietti   +3 more
wiley   +1 more source

Numerical and experimental study of a waffle slab designed to serve as a tennis court floor

Revista IBRACON de Estruturas e Materiais
Reinforced concrete waffle slabs have become a common option for designers due to a need of rationalization in construction with reduction in costs and deadlines.
P. F. Schwetz, F. P. S. L. Gastal, L. C. P. Silva F°   +2 more
doaj   +1 more source

Support surfaces for pressure ulcer prevention. [PDF]

, 2004
BACKGROUND: Pressure ulcers (also known as bedsores, pressure sores, decubitus ulcers) are areas of localised damage to the skin and underlying tissue due to pressure, shear or friction. They are common in the elderly and immobile and costly in financial
Allen, Allman, Andersen, Andrews, Aronovitch, Ballard, Barhyte, Bennett, Bliss, Bliss, Bliss, Bliss, Braniff-Matthews, Bridel-Nixon, Bridel-Nixon, Brienza, Büchner, Chaloner, Chaloner, Choi, Clark, Colin, Collier, Conine, Conine, Conine, Conine, Conine, Cooper, Cullum, Cullum, Daechsel, Dealey, deBoisblanc, Deeks, Defloor, Defloor, Dunlop, Economides, Ewing, Exton-Smith, Flam, Fleischer, Gebhardt, Gebhardt, Gebhardt, Geelkerken, Gentilello, Geyer, Goldstone, Gray, Gray, Gray, Gray, Grindley, Gunningberg, Gunningberg, Haalboom, Hampton, Hampton, Hawkins, Higgins, Hofman, Holzgreve, Inman, Inman, Jacksich, Jesurum, Jolley, Kaltenhaler, Kemp, Keogh, Koo, Laurent, Lazzara, Lim, Marchand, McGowan, McGowan, Moher, Munro, Neander, Nixon, Ooka, Phillips, Price, Regan, Reynolds, Rosenthal, Russell, Russell, Schultz, Schultz, Scott, Scott, Scott, Sideranko, Stapleton, Stoneberg, Suarez, Summer, Takala, Takala, Taylor, Thomas, Tymec, Vyhlidal, Wells, Whitney, Wild, Zernike   +110 more
core   +2 more sources

High‐Entropy Perovskite Nanofibers for Bifunctional Air Electrodes in Reversible Protonic Ceramic Electrochemical Cells

Advanced Functional Materials, EarlyView.
High‐entropy perovskite nanofibers serve as robust and active bifunctional air electrodes in reversible protonic ceramic electrochemical cells. Their compositional complexity stabilizes the lattice, enriches oxygen vacancies, and accelerates surface exchange.
Hyeonggeun Kim, Incheol Jeong, Seeun Oh, Dongyeon Kim, Kang Taek Lee   +4 more
wiley   +1 more source

Structural Damage Caused by the 1976 Guatemala Earthquake [PDF]

, 1976
National Science FoundationResearch Grant ATA 74 ...
Roesset, J., Sozen, M.A.
core  

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

Advanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu, Xinyi Zhang, Lan Wen, Hongjiang Chen, Yudhistira Tirtayasri Amrillah, Vivi Fauzia, Hongzhen Dong, Shaoqiang Su, Wenjun Luo, Ferry Anggoro Ardy Nugroho, Patrick H.‐L. Sit, Yun Hau Ng, Fatwa F. Abdi   +12 more
wiley   +1 more source

Impact And Explosive Loads On Concrete Buildings Using Shell And Beam Type Elements [PDF]

, 2011
The threat of impact or explosive loads is regrettably a scenario to be taken into account in the design of lifeline or critical civilian buildings. These are often made of concrete and not specifically designed for military threats. Numerical simulation
Bermejo Castro, Mario, Gabaldón Castillo, Felipe, Goicolea Ruigómez, José María, Santos Yanguas, Anastasio Pedro   +3 more
core  

Universal response spectrum procedure for predicting walking-induced floor vibration [PDF]

, 2015
ArticleFloor vibrations caused by people walking are an important serviceability problem both for human occupants and vibration-sensitive equipment. Present design methodologies available for prediction of vibration response due to footfall loading are ...
Brownjohn, James, Jun, Chen, Racic, Vitomir   +2 more
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source