Results 151 to 160 of about 1,412,651 (356)

Constant DC output boost converter for solar system sourace model [PDF]

, 2013
A Neural network controller of DC-DC boost converter is designed and presented in this project. In order to control the output voltage of the boost converter, the controller is designed to change the duty cycle of the converter. The mathematical model
Eldagdag, Nabil Musbah
core  

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Strength enhancement of recycled fine aggregate beam through chemical treatment - A waste to wealth Approach

Journal of Materials Research and Technology
The present research used detailed experimental data to examine the structural behavior of concrete beams incorporating recycled fine aggregates, both treated and untreated.This paper also reveals that microstructural analysis of both treated and ...
Mareeswari Andal N, Thenmozhi R, Bahurudeen A   +2 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Quarry fines minimisation : can we really have 10mm aggregate with no fines? [PDF]

, 2008
In 2005, 216 million tonnes of saleable aggregate was produced in the UK; a corresponding 55 million tonnes of quarry fines and 24 million tonnes of quarry waste were also produced.
Mitchell, Clive John, Mitchell, Paul, Pascoe, RD   +2 more
core  

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Durability performance of Green Concrete Incorporating Various Wastes: A Review [PDF]

, 2019
The present manuscript stands for the review on the topic of durability attribute of concretes developed by means of green conception with incorporation of a variety of solid industrial waste slag from Ground Granulated Blast Furnace, silica fume, rice ...
LUHAR, Ismail, LUHAR, Salmabanu
core  

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

The durability of recycled aggregates and recycled aggregate concrete

, 1988
PUBLISHED The ...
openaire   +1 more source

Fracture energy of coarse recycled aggregate concrete using the wedge splitting test method: influence of water-reducing admixtures [PDF]

, 2017
The aim of this study is to evaluate the effect of the replacement levels of coarse natural aggregates with recycled aggregates and water-reducing admixtures on the fracture energy of concrete.
Barroqueiro, T., De Belie, Nele, de Brito, J., Evangelista, L., Garcia-Gonzalez, J., Juan-Valdes, A., Moran-del Pozo, J.   +6 more
core   +1 more source