Results 71 to 80 of about 288,924 (358)

Supported ITZ modification efficiencies via surface coating nanoparticles on aggregate and its influence on properties [PDF]

, 2019
In order to modify the porous interfacial transition zone (ITZ) microstructure of concrete more efficiently, a method of coating aggregate surfaces by using several nanoparticles was evaluated in this study. The compressive strength, chloride penetration
De Schutter, Geert, Han, Hao, Wu, Kai, Xu, Linglin, Yang, Xiaojie   +4 more
core   +1 more source

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

Archaeology in Oceania, EarlyView.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford, Iarawai Phillip, Lucas Sarvanu, Edson Willie, Stuart Hawkins, Robert Henderson, Frédérique Valentin, Siri Seoule, Emily Nutman, Phillip Parton   +9 more
wiley   +1 more source

Visokotemperaturno procesiranje in reciklaža avtomobilskih katalizatorjev [PDF]

, 2018
This paper presents the results from an experimental study of the thermal method applied for obtaining platinum-group metals (PGMs) by melting used autocatalysts in an 80 kVA plasma reactor, using suitable fluxes and a reducing agent. As the collector of
Dobáková, Romana, Kurilla, Peter, Lázár, Marián, Příhoda, Miroslav, Čarnogurská, Mária   +4 more
core   +1 more source

The Influence of Corporate Sustainability Rating Methodology on Disclosure Behavior

Business Strategy and the Environment, EarlyView.
ABSTRACT The rise of environmental, social, and governance (ESG) investing has illuminated long‐standing concerns over the ability for sustainability rating schemes to accurately convey sustainability‐related performance of firms. This study theorizes and empirically examines how a detailed and transparent rating methodology influences what information
Patrick J. Callery
wiley   +1 more source

De-coppering of Metallurgical Slag Using Printed Circuit Boards as a Reducer [PDF]

Archives of Foundry Engineering
In the publication of the results of laboratory tests for decoppering metallurgical slag using a variable addition of "LOW GRADE" PCB scrap as a reducer (dates from 10 to 30% of the slag mass).
Ł. Kortyka, J. Łabaj, P. Madej, Ł. Myćka, M. Lewandowska, T. Matuła   +5 more
doaj   +1 more source

Mechanism of microstructural modification of the interfacial transition zone by using blended materials [PDF]

, 2015
Applying blended materials with finer particle size or high reactivity could be an effective and economic way for improving the microsturcture of interfacial transition zone (ITZ).
De Schutter, Geert, Gao, Yun, Shi, Huisheng, Wu, Kai, Ye, Guang   +4 more
core   +1 more source

Innovative electrospun geopolymer/zeolite/PVA composite membranes

The Canadian Journal of Chemical Engineering, EarlyView.
Proposed scheme of gas adsorption mechanisms on electrospun geopolymer/zeolite/PVA composite membranes. Abstract Innovative electrospun poly(vinyl alcohol) (PVA)–geopolymer–zeolite 13X composite membranes were successfully fabricated and systematically characterized.
Mariana Schneider, Mar Calzado‐Delgado, Enrique Rodríguez‐Castellón, Maria Olga Guerrero‐Pérez, Dachamir Hotza, Agenor De Noni Junior, Adel Zrelli, Regina de Fátima Peralta Muniz Moreira   +7 more
wiley   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Investigation of the performance and life cycle assessment of alkali-activated sintered sludge-slag-based permeable concrete

Frontiers in Materials
As urbanization continues to accelerate, the application of permeable concrete is becoming an increasingly prevalent practice. Nevertheless, the carbon dioxide emission issue associated with traditional permeable concrete cannot be overlooked.
Xiangbo Ning, Jiayang Zhang, Can Zhuang, Qunyong Su, Shunjie Zhong   +4 more
doaj   +1 more source

Influence of physic-mechanical properties on a choice of metallurgical slags processing technology [PDF]

, 2015
Проаналізовано фізико-механічні властивості шлаків після первинної переробки – тер-мічного (термоудар) і механічного впливу на розплав, схильність відвальних шлаків до розпаду – структурним перетворенням, і можливі види механічної переробки для отримання
Gankevich, V.F., Kravchenko, V.P., Pashchenko, A.A.   +2 more
core