Results 41 to 50 of about 1,677,726 (360)

UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization [PDF]

, 2016
Different nanocomposites have been attained by in situ polymerization based on ultra-high molecular weight polyethylene (UHMWPE) and mesoporous SBA-15, this silica being used for immobilization of the FI catalyst bis [N-(3-tert-butylsalicylidene)-2,3,4,
Adewole, Amoli, Ana E. Ferreira, Baier, Bakshi, Beck, Beloshenko, Bento, Bryliakov, Campos, Campos, Campos, Carlini, Cerrada, Cerrada, Chen, Cui, Cybo, Dangsheng, Deng, Dong, Dorigato, Díez-Pascual, Ernesto Pérez, Guo, Henri Cramail, Ianuzzi, Ivanchev, Ivanchev, Iwashita, João P. Lourenço, Kaminsky, Katti, Klimova, Kresge, Kurek, Kurtz, M. Rosário Ribeiro, Makio, Makio, Maria L. Cerrada, Mitani, Oliver, Olmos, Panchenko, Park, Quinn, Ribeiro, Sandaroos, Severn, Sinfrônio, Spiegelberg, Sánchez, Talebi, Tjong, Vicente Lorenzo, Wypych, Xu, Zhang, Zhao, Zohuri   +60 more
core   +3 more sources

Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst

Jurnal Kimia Sains dan Aplikasi, 2019
Effect of temperature, initial H2 pressure, and reaction time on the selective hydrogenation of hexadecanoate acid to 1-hexadecanol over bimetallic ruthenium-tin supported on carbon (denoted as Ru-Sn(3.0)/C; 3.0 is molar ratio Ru/Sn) has been ...
Nor Ain, Rodiansono Rodiansono, Kamilia Mustikasari   +2 more
doaj   +1 more source

Separation of CH4/H2/CO2 Gas Mixtures Using Spherical Pellets of Deposited Zeolites on Monmorillonite [PDF]

Journal of Chemical and Petroleum Engineering
Gas purification is necessary for many industrial processes, and the using of zeolite adsorbents is one of the low-cost methods in this field. The aim of this work is to synthesize three types of zeolite/quasi-zeolite through hydrothermal technique and ...
Shima Karimi, shahram sharifnia, Rasoul Neishabori Salehi   +2 more
doaj   +1 more source

Few Graphene layer/Carbon-Nanotube composite Grown at CMOS-compatible Temperature [PDF]

, 2011
We investigate the growth of the recently demonstrated composite material composed of vertically aligned carbon nanotubes capped by few graphene layers. We show that the carbon nanotubes grow epitaxially under the few graphene layers. By using a catalyst
Bernier, N., Cuzzocrea, J., Jousseaume, V., Renard, Vincent Thomas Francois   +3 more
core   +3 more sources

Mechanisms and kinetic assays of aminoacyl‐tRNA synthetases

FEBS Letters, EarlyView.
Accurate protein synthesis is crucial for life. The key players are aminoacyl‐tRNA synthetases (AARSs), which read the genetic code by pairing cognate amino acids and tRNAs. AARSs establish high amino acid selectivity by employing physicochemical limits in molecular recognition.
Igor Zivkovic, Morana Dulic, Ita Gruic‐Sovulj   +2 more
wiley   +1 more source

Kinetic comparison of two basic heterogenous catalysts obtained from sustainable resources for transesterification of waste cooking oil [PDF]

Biofuel Research Journal, 2015
Alkaline earth metal oxides are appropriate catalysts for biodiesel production and among them, CaO and MgO are known for possessing the best efficiency.
G.R. Moradi, M. Mohadesi, M. Ghanbari, M.J. Moradi, Sh. Hosseini, Y. Davoodbeygi   +5 more
doaj  

Effect of COVID-19 on patient access to health services for noncommunicable diseases in Latin America: a perspective from patient advocacy organizations

International Journal for Equity in Health, 2022
Background The COVID-19 pandemic has been felt acutely in Latin America with several countries having among the highest numbers of SARS-CoV-2 cases and related deaths.
Meredith H. Kruse, Alessandra Durstine, Dabney P. Evans   +2 more
doaj   +1 more source

Efficient catalytic removal of COS and H2S over graphitized 2D micro-meso-macroporous carbons endowed with ample nitrogen sites synthesized via mechanochemical carbonization

Green Energy & Environment, 2022
Developing a suitable catalyst for the elimination of highly toxic carbonyl sulfide (COS) and hydrogen sulfide (H2S) is of great significance in terms of industrial safety and environmental protection.
Xun Kan, Guanqing Zhang, Yingying Luo, Fujian Liu, Yong Zheng, Yihong Xiao, Yanning Cao, Chak-tong Au, Shijing Liang, Lilong Jiang   +9 more
doaj   +1 more source

Asset Identification Under the Cape Town Convention and Protocols [PDF]

, 2012
A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst. The titania-supported
Goode, Sir Roy
core   +1 more source

The effect of the amido substituent on polymer molecular weight in propene homopolymerisation by titanium cyclopentadienyl-amide catalysts [PDF]

, 2000
In the homopolymerisation of propene by the cyclopentadienyl-amide titanium catalyst systems [η5,η1-C5H4(CH2)2NR]TiCl2/MAO and [η5,η1-C5H4(CH2)2NR]Ti(CH2Ph)2/B(C6F5)3 (R = tBu, iPr, Me), the catalyst with the smallest substituent (Me) on the amido moiety
Hessen, Bart,, Sinnema, Piet-Jan,, Teuben, Jan H.,   +2 more
core   +1 more source