Results 101 to 110 of about 571 (270)

CO2 capture by accelerated weathering of limestone using waste limestone at elevated CO2 concentrations

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Accelerated weathering of limestone (AWL) using waste limestone (WL) for industrially relevant CO2 capture remains underexplored. Previous studies on potable water‐operated AWL have mainly examined idealised conditions, such as the use of high‐purity limestone or relatively low CO2 concentrations, which may not reflect selected ...
Daniel Nyuin Alfred Damu, Alvin Guo Jian Lee, Slyvester Yew Wang Chai, Lock Hei Ngu   +3 more
wiley   +1 more source

Investigation on the Microstructure, Oxidation and Electrical Behavior of Ti-coated Crofer 22APU Steel for SOFC Interconnect Applications

Journal of Advanced Materials in Engineering, 2019
One of the most effective ways to improve oxidation resistance of interconnects used in solid oxide fuel cells (SOFCs) is to apply a layer of conductive protective coating. In this study, Crofer 22APU ferritic steel was coated in a titanium- based powder
H. Ebrahimifar, M. Zandrahimi, F. Ekhlaspour   +2 more
doaj  

Work Posture Analysis using the RULA and OWAS Methods in the Cement Packing Section at the Packing Plant Indarung Unit of PT. Semen Padang

International Journal of Engineering, Science and Information Technology
PT Semen Padang is a cement manufacturer. According to preliminary observations, the cement packing process, which is done at the Packing Plant Indarung unit, is the last step of the cement production process. Due to the sideways and bowed body positions, cement bagging is performed manually with a less ergonomic working position.
Fatimah Fatimah, Cut Ita Erliana, Aulia Nisa Febriani   +2 more
openaire   +1 more source

Impact of abrasive versus non‐abrasive cleaning on peri‐implantitis titanium release: A randomized clinical trial

Journal of Periodontology, EarlyView.
Abstract Background Surface decontamination is integral to peri‐implantitis treatment. However, abrasive mechanical methods can cause implant surface degradation with possible adverse biological effects. No human studies have examined whether these treatments cause titanium release or impair regenerative outcomes.
Georgios A. Kotsakis, Antonella Botto, Marzieh S. Jazaeri, Archontia Palaiologou, Eddie Lee, Diane M. Daubert   +5 more
wiley   +1 more source

Chrome Coating on Zirconium By Pack Cementation Method on Corrosion Rate

The manufacture of zirconium alloy coating with chrome by using pack cementation method and comparison of its corrosion Knowing the effect of coating on zirconium plate in 9000C temperature and comparing its corrosion characteristics in NaOH ...
Sitohang, Angelina
core  

Sewage Sludge and Cashew Bagasse Biochars Promote Changes in Selected Physical Attributes Related to the Structure of Degraded Dryland Soil

Journal of Plant Nutrition and Soil Science, EarlyView.
This study evaluated biochars from co‐pyrolysis of sewage sludge and cashew residues on physical quality of a degraded loamy sand soil. SPB applied at 20 Mg ha−1 reduced bulk density by 7.74%, whereas most porosity attributes were driven by soil reconsolidation rather than biochar. Aggregate stability varied with biochar type, with SPB promoting larger
João Marcos Rodrigues dos Santos, Ícaro Vasconcelos do Nascimento, Gilvanete da Silva Henrique, Tiago da Costa Dantas Moniz, Francisco Luan Almeida Barbosa, Alexandre dos Santos Queiroz, Adriana Guirado Artur, Mirian Cristina Gomes Costa, Helon Hébano de Freitas Sousa, Odair Pastor Ferreira, Laís Gomes Fregolente, Antônio Gomes de Souza Filho, Romildo Lopes de Oliveira Filho, Arthur Prudêncio de Araujo Pereira, Jaedson Cláudio Anunciato Mota   +14 more
wiley   +1 more source

Columnanidus calitzdorpensis ichnogen. ichnosp. nov: A new Middle Pleistocene subterranean termite trace fossil from South Africa

Journal of Quaternary Science, EarlyView.
ABSTRACT Termites are landscape geo‐engineers whose nesting activities substantially modify the physical and chemical properties of soils. Fossilised termite nests commonly constitute the only identifiable evidence of ancient termite activity and represent valuable trace fossil archives for reconstructing past environments.
Miengah Abrahams, Robert A. Muir, Jorge F. Genise, John E. Almond, Gcinamahlubi Hadebe, John C. Hellstrom, Rabia Jacobs, Chris Harris   +7 more
wiley   +1 more source

Pack Aluminization of Austenitic Stainless Steels

, 2016
Stainless steels are used in aerospace and petrochemical applications because of their excellent corrosion resistance. However, when higher operating temperatures are needed to increase overall performance, the service life of the material is usually ...
Aranda, Michell, Nazari, Ani, Navarro, Daniel   +2 more
core  

Jewelled Byzantine and Medieval Reliquaries of the True Cross: Peridots and Other Gemstones in Material and Symbolic Perspective

Journal of Raman Spectroscopy, EarlyView.
An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello, Stefano Legnaioli, Simona Raneri   +2 more
wiley   +1 more source

Aluminizing for enhanced oxidation resistance of ductile refractory high-entropy alloys

, 2018
Refractory high-entropy alloys (RHEAs) emerge as promising candidate materials for ultrahigh-temperature applications. One critical issue to solve for RHEAs is their balanced oxidation resistance and mechanical properties, mainly room-temperature ...
Tsao, Te Kang, Guo, Sheng, Sheikh, Saad Ahmed, Tsao, Te Kang,, Murakami, Hideyuki,, Guo, Sheng,, Sheikh, Saad,, Gan, Lu, Sheikh, Saad Ahmed,, Murakami, Hideyuki, Shafeie, Samrand, Gan, Lu,, Tsao, Te-Kang,, Shafeie, Samrand,   +13 more
core   +1 more source