Results 41 to 50 of about 286,158 (300)

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Analysis of Hydropotential and Prospects for Small Hydropower Development in Ukraine

open access: yesEnvironmental and Climate Technologies, 2023
The share of electricity generation by small hydropower plants is the least among other renewable energy sources in Ukraine, although the SHPPs were widely operated in the past.
Halych Oksana   +3 more
doaj   +1 more source

Laboratory study of the effect of vegetation and gravel on runoff parameters under variable rainfall intensities

open access: yesWater Science and Technology, 2023
The present study aims to evaluate the performance of the impervious surface as a control (O), sandy loam substrate (SL), gravel (G), gravel with geocell layer (GGE), rosemary (R), rosemary with geocell layer (RRE), turf (T), and turf with geocell layer (
Hamidreza Ghazvinian, Hojat Karami
doaj   +1 more source

Decision-making through sustainability [PDF]

open access: yes, 2016
From immemorial time, dams have contributed significantly for the progress of civilizations. For this reason, nowadays, there is a vast engineering heritage.
Aguado de Cea, Antonio   +1 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Organization and Stabilization of River Coastal Using a Mathematical Model (Case Study: Zohreh River) [PDF]

open access: yesمخاطرات محیط طبیعی, 2018
The morphological studies and researches are very important for organizing the river and determining the river bed and zone. There are several hydraulic factors that make the scouring phenomenon intense at the location of hydraulic structures constructed
Ebrahim Nohani, Alireza Moalaimazrae
doaj   +1 more source

Hydraulic Modeling of a Mixed Water Level Control Hydromechanical Gate [PDF]

open access: yes, 2011
This article describes the hydraulic behavior of a mixed water level control hydromechanical gate present in several irrigation canals. The automatic gate is termed "mixed" because it can hold either the upstream water level or the downstream water level
Bos M.   +9 more
core   +4 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Efficacy of the Combined Use of Bed Sill and Sacrificial Piles to Control Local Scour around Circular Bridge Piers

open access: yesShock and Vibration
In this study, the results are presented and discussed from laboratory test campaigns specifically designed to investigate the behavior of sacrificial piles as a countermeasure against local scouring at a circular bridge pier and clear-water conditions ...
Vahid Javidi Vahdati   +3 more
doaj   +1 more source

Fabrication of aluminium covetic casts under different voltages and amperages of direct current

open access: yesOpen Engineering, 2020
Aluminium Covetic metallurgical synthesis along with the characterization of cast material results were presented in this paper. Aluminium- 3% graphite (carbon) composites were fabricated by applying different voltages and amperages of direct current ...
Kareem Mohammed Qasim   +2 more
doaj   +1 more source

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