Results 51 to 60 of about 127,759 (346)

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer

Case Studies in Chemical and Environmental Engineering
Polylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical.
Yathrib Ajaj, H.N.K. AL-Salman, Ali M. Hussein, Mohammed Khaleel Jamee, Sherzod Abdullaev, Alaa A. Omran, Manal Morad Karim, Alzahraa S. Abdulwahid, Zaid H. Mahmoud, Ehsan kianfar   +9 more
doaj   +1 more source

Synthesis and Characterization of Titania-Rice Husk Silica Composites as Photocatalyst

Indonesian Journal of Chemistry, 2015
This article describes the synthesis of titania-silica composites by a sol-gel method using a mixture of silica of rice husk and titanium butoxide sols.
Posman Manurung, Rudy Situmeang, Ediman Ginting, Indra Pardede   +3 more
doaj   +1 more source

Photo-desorption of H2O:CO:NH3 circumstellar ice analogs: Gas-phase enrichment [PDF]

, 2018
We study the photo-desorption occurring in H$_2$O:CO:NH$_3$ ice mixtures irradiated with monochromatic (550 and 900 eV) and broad band (250--1250 eV) soft X-rays generated at the National Synchrotron Radiation Research Center (Hsinchu, Taiwan). We detect
Caro, G. M. Munoz, Cecchi-Pestellini, C., Chen, Y. -J., Ciaravella, A., Huang, C. -H., Jimenez-Escobar, A., Sie, N. -E.   +6 more
core   +2 more sources

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

A Comparison of Ultraviolet Transmission through Soft Contact Lenses Available in Iranian Market

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2014
Background and Objectives: Long-time erexposure to ultraviolet radiations can lead to various skin and ocular diseases. UV-blocking contact lenses due to their properties against ultraviolet radiations can protect eyes. The present study aimed to compare
Mohadeseh Mohammadinia, Saeed Rahmani, Mohammad Reza Nazari, Seyed Mahdi Tabatabaei   +3 more
doaj  

Ultraviolet observations of the X-ray photoionized wind of Cygnus X-1 during X-ray soft/high state

, 2007
(Shortened) Ultraviolet observations of the black hole X-ray binary Cygnus X-1 were obtained using the STIS on HSTubble. We detect P Cygni line features show strong, broad absorption components when the X-ray source is behind the companion star and ...
A. Hunacek, B. S. Boroson, Bolton C. T., Bondi H., Brocksopp C., C. T. Bolton, D. Gies, Gies D. R., Herrero A., Nelder J. A., S. D. Vrtilek, Verner D. A.   +11 more
core   +1 more source

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

Total ozone column above the territory of Serbia and Montenegro [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2006
Introduction: Atmospheric ozone attenuates ultraviolet radiation reaching the Earth’s surface. Since UV-B radiation is considered the principal factor of causing the skin cancers, cataracts and some immunological disorders, determination of total ozone ...
Letić Milorad
doaj   +1 more source

The Ultraviolet-X-ray connection in AGN outflows

, 2010
In this paper I review the recent progress in understanding the physics of the gas outflowing from active galactic nuclei and its impact on the surrounding environment, using the combined information provided by multiwavelength Ultraviolet-X-ray ...
Costantini, Elisa
core   +1 more source