Results 61 to 70 of about 656,841 (245)

Behavior of high strength self compacted concrete deep beams with web openings

Heliyon, 2019
Deep beams transfer loads through loading face to supports in an inclined direction and mostly fail in shear. These beams are with a small span-to-depth ratio. Openings are used to facilitate the passage of utility pipes and service ducts.
Hassan Mohammed Hassan, Mohammed Abd El Salam Arab, Ahmed Ismail el-kassas   +2 more
doaj   +1 more source

CO2‐Assisted Hydrolysis of NaBH4: A Multi‐Function Platform for Enhanced Hydrogen Release, Regeneration of NaBH4, and CO2‐to‐CH4 Conversion

Advanced Science, EarlyView.
CO2 significantly accelerates hydrogen release from aqueous NaBH4 without metal catalysts, eliminating the need for downstream separation. Ball‐milling the hydrolytic products with Mg regenerates NaBH4 with yields exceeding 76% while simultaneously producing methane.
Rui Han, Stella Zhang, Yan Dai, Michael Scott, Brandon He, Sadegh Shabani, Oliver Hutt, Matthew David, Zhenguo Huang   +8 more
wiley   +1 more source

Plastic shrinkage cracking and bleeding of concrete prepared with alkali activated cement

Heliyon, 2019
Restrained shrinkage cracking that appears on concrete surfaces during construction, or while concrete in the curing process adversely affect the long-term durability and other performance attributes of concrete-based-infrastructures.
Faris Matalkah, Yaser Jaradat, Parviz Soroushian   +2 more
doaj   +1 more source

Al─N Co‐Doped LLZO Solid Electrolytes via One‐Step Sintering: Toward High Ionic Conductivity

Advanced Science, EarlyView.
Al–N co‐doped LLZO solid electrolytes were prepared via a one‐step sintering process, which not only simplifies fabrication process, but also diminishes Li loss during high‐temperature sintering in conventional fabrication process. The Al–N co‐doped LLZO achieves a high ionic conductivity of 2.19 × 10−3 S cm−1 because the co‐doping reduces the energy ...
Hao Zhang, Yaocong Wang, Quande Che, Jiaming Wu, Yanzhu Zhang, Dongxu Mao, Xundao Liu, Jiajie Li, Zhengmao Ye, Dehua Dong   +9 more
wiley   +1 more source

Retracted: Study on Seismic Performance of Recycled Steel Fibers Locally Reinforced Cruciform Concrete Frame Beam-Column Joint

Advances in Civil Engineering, 2023
Advances in Civil Engineering
doaj   +1 more source

Application of Harmony SE in civil aircraft design

Xibei Gongye Daxue Xuebao
With the refinement of civil aircraft technology and the enhancement of product complexity, civil aircraft design has changed from traditional text-based system engineering to model-based system engineering, the expression of the system has also ...
LIU Wanyi, FENG Yunwen, HOU Jieran, CHEN Junyu, GUO Yingnan   +4 more
doaj   +1 more source

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Heliyon, 2019
In this study, a three-dimensional (3D) response of anchored sheet pile walls was investigated on double-anchored sheet pile system during soils excavation and tunnel construction sequence.
Massamba Fall, Zhengguo Gao, Becaye Cissokho Ndiaye   +2 more
doaj   +1 more source

Sulfonated Bathocuproine Derivatives as Chemically Bonded Buried‐Interface Engineers for n–i–p Perovskite Solar Cells

Advanced Science, EarlyView.
A BCP‐derived buried‐interface strategy establishes Na‐BCS as a chemically bonded molecular bridge. By combining sulfonate anchoring to SnO2 with preserved BCP–Pb2+ coordination, Na‐BCS simultaneously passivates oxide‐ and perovskite‐side defects, suppresses non‐radiative recombination, and delivers a surface recombination velocity of 8.6 cm s−1, a ...
Dong Hyun Kim, Min Ju Jeong, SeungMin Lee, Oui Jin Oh, Mun Young Woo, Sung Yong Kim, Dong Hun Kang, Chan Young Kim, Chan Ho Shin, Jun Hong Noh   +9 more
wiley   +1 more source

Retracted: Experimental Study on Mineral Solid Waste Green Grouting Material Based on Electromagnetic Characteristic Detection

Advances in Civil Engineering, 2023
Advances in Civil Engineering
doaj   +1 more source

Bridged h‐BN Nanosheets Coatings: Simultaneous Shielding Atomic‐Oxygen Irradiation and Achieving Superior Friction Performance

Advanced Science, EarlyView.
ABSTRACT To confront extreme space environments, a combination of inorganic and organic coatings can provide a pathway for offering highly durable radiation resistance and anti‐friction simultaneously. Herein, a strong interfacial 3D hydrogen‐bonding network is designed to create robust hexagonal boron nitride (h‐BN) based polymer coatings with ...
Zhuoyi Li, Changning Bai, Xingkai Zhang, Yusheng Liang, Wei Wu, Dingrui Zhou, Tao Du, Chunjin Wang   +7 more
wiley   +1 more source