Results 211 to 220 of about 884,256 (294)

Isothermal Reduction Behavior and Microstructural Evolution of Iron Ore Sinter Under Simulated Radial Blast Furnace Gas Atmospheres With Hydrogen Injection

steel research international, EarlyView.
Commercial iron ore sinter is reduced isothermally under operation‐derived radial blast furnace gas atmospheres with and without 20 kg H2/tHM injection. Hydrogen improves reduction at 900–1100 °C, whereas at 700 °C the high H2O content limits the wüstite‐to‐iron driving force.
Ahmed Abdelrahim, Sherif Hegazy, Mikko Iljana, Aki Koskela, Carmen van der Kroon, Timo Fabritius   +5 more
wiley   +1 more source

Morphology-Controlled Ultralow Aqueous Friction in Cationic-Anionic Mixed Surfactant Systems. [PDF]

Langmuir
Zhu L, Kampf N, Tian M, Zhang Q, Fan Y, Wang Y, Klein J.   +6 more
europepmc   +1 more source

Hydrogen Reduction of Synthetic Fe2O3 Pellets: The Role of Calcium Oxide in Porosity Evolution and Reduction Kinetics

steel research international, EarlyView.
At 800 °C, hematite pellets containing 0.9 wt% CaO reduce in hydrogen at rates 1.2–1.4 times those of pure pellets. The inward‐moving reaction front supports a topochemical description, and FeO‐to‐Fe kinetics are consistent with mixed control by interfacial reaction and intrapellet diffusion.
Jess Kuper, Ali Zakeri, Leili Tafaghodi
wiley   +1 more source

Analysis of the critical instability load of freeze pipes in coal mine shaft freezing engineering. [PDF]

Sci Rep
Zhang H, Li M, Xie B, Rong C, Qi Y.
europepmc   +1 more source

STUDY ON CONTINUOUS CIRCULAR CYLINDRICAL SHELLS

Transactions of the Architectural Institute of Japan, 1965
openaire   +2 more sources

Stresses in Above‐Ground Storage Tanks Subjected to Flood‐Borne Debris Impact

Safety Science and Technology, EarlyView.
This study investigates the stresses induced in above‐ground storage tanks by flood‐borne debris, specifically steel pipes and wood poles. Findings demonstrate that debris impacts across the examined velocity range generate stresses within safe limits, not exceeding the yield stress threshold.
Sabarethinam Kameshwar, Md Manik Mia, Bobby Chen   +2 more
wiley   +1 more source

Waste Shell Valorization for Phosphorus Recovery: Comparative Assessment of Cockle Shell- and Eggshell-Derived Calcium Oxide Adsorbents in Powder and Granular Configurations. [PDF]

ACS Omega
Thongdamrongtham S, Labcom C, Saenwang P, Chaikhan S.   +3 more
europepmc   +1 more source

Structural testing and analytical model of Reinforced Concrete (RC) prisms with 3D‐printed concrete permanent formwork under compressive loading

Structural Concrete, EarlyView.
Abstract The implementation of traditional steel reinforcement in 3D concrete printed structures is a major challenge. Although 3D‐printed structures may be used as formwork, the knowledge about their structural contribution is limited. This research aims to experimentally evaluate the structural performance of reinforced concrete prisms with 3D ...
Luis M. de la Flor Juncal, Allan Scott, Don Clucas, Giuseppe Loporcaro   +3 more
wiley   +1 more source

Frequency analysis of tetra layered FGM cylindrical shell with S-S Edge condition. [PDF]

Sci Rep
Ghamkhar M, Safdar R, Batool K, Maqbool A, Farid G, Iqbal MZ, Abd-Elmonem A, Suoliman NAA.   +7 more
europepmc   +1 more source

Recent Advances in Oriented Hydrogels: From Fundamental Mechanisms to Future Challenges

SusMat, EarlyView.
Traditional hydrogels suffer from weak mechanical properties and limited functionality due to their random polymer networks. This review comprehensively summarizes the reinforcement mechanisms of oriented structure for hydrogels, the design/fabrication strategies, and the latest application progress of high‐strength oriented hydrogels.
Chang Xu, Xijing Zhuang
wiley   +1 more source