Results 31 to 40 of about 1,972,499 (155)

Comparison of Lewis Acidity between Al-MCM-41 Pure Chemicals and Al-MCM-41 Synthesized from Bentonite

Bulletin of Chemical Reaction Engineering & Catalysis, 2019
This study focused on the Lewis acidity of Al-MCM-41 prepared from bentonite (Al-MCM-bentonite) as silica and aluminum source simultaneously. This acidity was compared with Al-MCM-41 synthesized from pure chemicals reagents (Al-MCM-standard).
Tewfik Ali-Dahmane, Lamia Brahmi, Rachida Hamacha, Salih Hacini, Abdelkader Bengueddach   +4 more
doaj   +1 more source

Replacement of silicon by aluminum with the aid of vanadium for galvanized TRIP steel

Journal of Materials Research and Technology, 2020
Silicon existence in conventional low carbon TRIP steel is essential for inhibiting cementite precipitation, despite that it tends to obstruct the hot-dip galvanizing process.
A. El-Sherbiny, Mohamed K. El-Fawkhry, Ahmed Y. Shash, T. El-Hossany   +3 more
doaj   +1 more source

ADMINISTRATIVE METHODS OF IMPORT SUBSTITUTION MANAGEMENT OF DEFICIENT TYPES OF MINERAL RAW MATERIALS

Записки Горного института, 2018
Import dependence of Russian consumers on certain types of mineral products: aluminum, manganese and chrome raw materials, titanium, zircon and tin concentrates, ferroniobium, fluorspar and others – increases the stability of many industries.
V. Yu. Khatkov, G. Yu. Boyarko
doaj   +1 more source

Protection of outbred mice against a vaginal challenge by a Chlamydia trachomatis serovar E recombinant major outer membrane protein vaccine is dependent on phosphate substitution in the adjuvant

Human Vaccines & Immunotherapeutics, 2020
Chlamydia trachomatis is the most common bacterial sexually-transmitted pathogen for which there is no vaccine. We previously demonstrated that the degree of phosphate substitution in an aluminum hydroxide adjuvant in a TLR-4-based C. trachomatis serovar
Sukumar Pal, Salvador Fernando Ausar, Delia F. Tifrea, Chunmei Cheng, Scott Gallichan, Violette Sanchez, Luis M. de la Maza, Lucian Visan   +7 more
doaj   +1 more source

Multifunctional graphene nanofiller in flame retarded polybutadiene/chloroprene/carbon black composites

e-Polymers, 2021
To curtail flammability risks and improve material properties, flame retardants (FRs) and fillers are mixed into rubbers. High loadings of aluminum trihydroxide (ATH) and carbon black (CB) are the most used FRs and reinforcing additive, respectively, in ...
Battig Alexander, Fadul Naïssa Abdou-Rahaman, Frasca Daniele, Schulze Dietmar, Schartel Bernhard   +4 more
doaj   +1 more source

Evaluation of a novel seriguela gum (Spondias purpurea L.) based flocculant aid for wastewater treatment: effect of carboxymethylation

Revista Brasileira de Ciências Ambientais
Seriguela gum is a barely explored polysaccharide, whose carboxymethylation reaction can expand its applications for water treatment by the increase of negative charges in the chain.
Henety Nascimento Pinheiro, Flavia Freitas Veloso, João Lucas Isidio de Oliveira Almeida, Flávia Oliveira Monteiro da Silva Abreu   +3 more
doaj   +1 more source

Functionalizations of Diamantane Dimers

Журнал органічної та фармацевтичної хімії, 2020
Aim. To develop preparative methods for functionalization of diamantane dimers. Results and discussion. The reaction of 1,1′-bisdiamantane with bromine and the subsequent hydrolysis gives 6-hydroxy-1,1′-bіsdіamantane with a yield of 56 %.
Pavel A. Gunchenko, Lesya V. Chernish, Evgeniya Yu. Tikhonchuk, Jonathan Becker, Peter R. Schreiner, Andrey A. Fokin   +5 more
doaj   +1 more source

Structural performance of recycled coarse aggregate concrete beams containing waste glass powder and waste aluminum fibers

Case Studies in Construction Materials, 2023
The main goal of this paper is to evaluate the flexural and shear performance of reinforced concrete (RC) beams containing recycled coarse aggregate (RCA), waste aluminum fiber (WAF) and waste glass powder (WGP).
Mahmoud Elsayed, Samar R. Abd-Allah, Mohamed Said, Ahmed Abdel El-Azim   +3 more
doaj   +1 more source

Environmental impact assessment of battery boxes based on lightweight material substitution

Scientific Reports
Power battery is one of the core components of electric vehicles (EVs) and a major contributor to the environmental impact of EVs, and reducing their environmental emissions can help enhance the sustainability of electric vehicles. Based on the principle
Xinyu Li, Yuanhao Zhang, Yumin Liao, Guanghai Yu   +3 more
doaj   +1 more source

Structural and magnetic characterization of maghemites prepared from Al-substituted magnetites

Revista Brasileira de Ciência do Solo, 2013
Synthetic aluminum-substituted maghemites were characterized by total chemical analysis, powder X-ray diffraction (XRD), Mössbauer spectroscopy (ME), and vibrating sample magnetometry (VSM).
Marcelo Augusto Batista, Antonio Carlos Saraiva da Costa, Jerry Marshal Bigham, Andrea Paesano Junior, Graciele Berndt, Tadeu Takeyoshi Inoue, Adriele Galeti Nonaka   +6 more
doaj   +1 more source