Results 1 to 10 of about 313,846 (268)

Numerical analysis of time-sharing differential freezing temperature field in coal mine

open access: yesMeikuang Anquan, 2021
In order to study the frozen sinking process of multi-row holes in deep loose layers of coal mine, the thickness of frozen wall designed according to the requirement of deep formation water and earth pressure is much larger than the actual thickness of ...
WANG Xiaojian, LI Zhaosheng, ZHANG Liangliang, SUN Shiyuan, SHEN Renwei, FANG Gensheng
doaj   +1 more source

Large-Arc Discharge Mechanism and Avoidance in Micro-Arc Oxidation of Magnesium Alloy

open access: yesMetals, 2022
The large-arc discharge problem occurs in the processing of magnesium alloy by micro-arc oxidation. It will cause local ablation of ceramic coating and even magnesium alloy matrix material.
Ke-Xin Guan   +3 more
doaj   +1 more source

Rapid Development of an Injection Mold with High Cooling Performance Using Molding Simulation and Rapid Tooling Technology

open access: yesMicromachines, 2021
Rapid tooling technology (RTT) provides an alternative approach to quickly provide wax injection molds for the required products since it can reduce the time to market compared with conventional machining approaches.
Chil-Chyuan Kuo   +3 more
doaj   +1 more source

Suggesting a Method to Estimate the Cooling Time of Iranand its Simulation in the Future [PDF]

open access: yesجغرافیا و توسعه, 2017
One of the criteria for estimating the amount of energy used for cooling and heating is the degree hour. The aim of this study was to select the most appropriate method to calculate the cooling degree hour and simulate these parameters in the coming ...
kamal omidvar   +3 more
doaj   +1 more source

Experimental investigation of the characteristic of vacuum spray cooling for tofu

open access: yesFrontiers in Food Science and Technology, 2023
The present study proposes a rapid cooling method based on vacuum spray cooling, and establishes an experimental system to study the cooling performance of this method by taking tofu as an example.
Gailian Li   +6 more
doaj   +1 more source

Biodiesel Purification by Solvent-Aided Crystallization Using 2-Methyltetrahydrofuran

open access: yesMolecules, 2023
The previous biodiesel purification by Solvent-Aided Crystallization (SAC) using 1-butanol as assisting agent and parameters for SAC were optimized such as coolant temperature, cooling time and stirring speed. Meanwhile, 2-Methyltetrahydrofuran (2-MeTHF)
Wan Nur Aisyah Wan Osman   +2 more
doaj   +1 more source

Experiment research of the influence of different cooling times on the drillability of high-temperature granite

open access: yes地质科技通报, 2023
To study the drillability and microscopic damage changes of granite after high temperature exposure and to study the influence of different cooling times on drillability after high temperature exposure, granite for high-temperature heat treatment was ...
Shuai Chen   +4 more
doaj   +1 more source

Time-Periodic Cooling of Rayleigh–Bénard Convection

open access: yesFluids, 2021
The problem of Rayleigh–Bénard’s natural convection subjected to a temporally periodic cooling condition is solved numerically by the Lattice Boltzmann method with multiple relaxation time (LBM-MRT).
Lyes Nasseri   +4 more
doaj   +1 more source

Assessment of the hardness of S890QL material welded joins [PDF]

open access: yesJournal of Research and Innovation for Sustainable Society
The need to reduce the mass of products manufactured by welding processes has led to the replacement of the basic steel materials, such as construction steels, by steels with high mechanical properties, such as hard and brittle steels.
Adrian Florea   +3 more
doaj   +1 more source

Uso de um esquema implícito e de splines para a simulação numérica do processo de resfriamento de frutas esféricas Use of an implicit scheme and splines for the numerical simulation of the cooling process of spherical fruits

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2005
Este trabalho teve como objetivo desenvolver um estudo teórico através do modelo matemático de Fourier, em sua forma unidimensional e em coordenadas esféricas, o que é descrito por uma equação diferencial parcial linear de segunda ordem, para a obtenção ...
Mariângela Amendola, Bárbara Teruel
doaj   +1 more source

Home - About - Disclaimer - Privacy