Results 31 to 40 of about 3,489,818 (371)

Strength and Ultrasonic Characteristics of Cemented Paste Backfill Incorporating Foaming Agent

open access: yesMinerals, 2021
This work is a systematic study of the strength and ultrasonic properties of cemented paste backfill incorporating a foaming agent, known as foam-cemented paste backfill (FCPB).
Xiaochuan Xu   +6 more
semanticscholar   +1 more source

New modification of the hestenes-stiefel with strong wolfe line search [PDF]

open access: yes, 2021
. The method of the nonlinear conjugate gradient is widely used in solving large-scale unconstrained optimization since been proven in solving optimization problems without using large memory storage.
Basri, Srimazzura   +2 more
core   +1 more source

Preparation Of Al-12si Foam Using Liquid Technique [PDF]

open access: yesEngineering and Technology Journal, 2009
This research aims at foaming an Al-12Si alloy by using CaCO3 powderas a foaming agent added to the agitated melt in different weight percents.The foaming process was carried out at different foaming temperatures of700C˚, 750 C˚ and 800C˚ for 5, 10 and ...
Nawal E. Abdullatef, Adel Mohammad Jaber
doaj   +1 more source

Additive Manufacturing of Porous Ceramics With Foaming Agent

open access: yesVolume 1, 2021
The macro-porous ceramics has promising durability and thermal insulation performances. A cost-effective and scalable additive manufacturing technique for the fabrication of macro-porous ceramics, with a facile approach to control the printed porosity ...
Zipeng Guo   +5 more
semanticscholar   +1 more source

A Hybrid Artificial Intelligence Model for Predicting the Strength of Foam-Cemented Paste Backfill

open access: yesIEEE Access, 2020
Foam-cemented paste backfill (FCPB) has become a trend to solve the problem of roof-contacted filling. In order to solve the time-consuming and labor-intensive disadvantages of laboratory uniaxial compressive strength (UCS) tests, a hybrid artificial ...
Jingping Qiu   +5 more
doaj   +1 more source

Geopolymer lightweight bricks manufactured from fly ash and foaming agent [PDF]

open access: yes, 2013
This paper deals with the development of lightweight geopolymer bricks by using foaming agent and fly ash. The mix parameters analysed through a laboratory experiment with fix ratio of sodium silicate/sodium hydroxide solution mass ratio 2.5, fly ash ...
Abd Samad, Noorazman   +5 more
core   +1 more source

Preparation of high-performance foamed conductive silicone rubber

open access: yesHecheng xiangjiao gongye, 2023
"Foamed conductive silicone rubber was prepared by dehydrogenation foaming method using coupling agent, conductive powder filler and Pt catalyst with vinyl silicone oil and hydroxyl silicone oil as matrix and silicone oil containing hydrogen as cross ...
XU Bao-zhong, ZHANG Kai, XIONG Yan-song, CHEN Shou-shan, YANG Ming-shan
doaj   +1 more source

PEMANFAATAN FOAMING AGENT DARI MINYAK SAWIT PADA BETON RINGAN

open access: yesJurnal Teknologi Industri Pertanian, 2019
Foaming agent contains surfactant that facilitates formation of foam to reduce the surface tension of liquid so that it can easily form bubbles. This time, foaming agent is used to produce lightweight concrete. Surfactant can be produced from fatty acid
Mukarramah Lubis   +3 more
doaj   +1 more source

Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale

open access: yesGeofluids, 2022
The development of natural fracture will lead to lost circulation, which will be likely to cause economic losses and reduce drilling efficiency. In order to solve this problem, an oil-based pressure-bearing foam gel plugging agent for fractured shale was
Daqi Li   +5 more
doaj   +1 more source

Managing the complexities of English Language teaching in engineering [PDF]

open access: yes, 2015
In this 21st century, engineering employers seek professional engineers who have excellent scientific knowledge and are able to demonstrate good communication and problem solving skills.
Mohamed, Mimi Nahariah Azwani
core   +1 more source

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