Results 21 to 30 of about 20,279 (296)

Nanostructuring during crystallization of cast aluminum‑copper‑silicon alloys and their structural stability during remelting

Литьë и металлургия
The main structural elements of melts of foundry aluminum‑copper‑silicon alloys are elementary nanocrystals of aluminum, copper, silicon and their free atoms.
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +2 more sources

Crystallization-Based Synthetic Route to Antimalarial Agent BRD5018: Diazocene Ring Formation via a Staudinger-aza-Wittig Reaction on an Azetidine-Ribose Template

, 2021
The development of an entirely crystallization-based synthetic route to the antimalarial BRD5018 is described, which assembles a structurally complex bicyclic azetidine scaffold adorned with five stereogenic centers without the need for any ...
Branko Mitasev (2260015), Venugopalarao Vikram, Bruno Melillo, Anand Vaddi (11436258), Francis G. Fang (4540849), Fabian Gusovsky, Stuart L. Schreiber, Venkata Sasidhar Balla (11436252), Anand Vaddi, Stuart L. Schreiber (189260), Masaharu Gotoda (11436279), Pavan Kumar Rayaprolu (11436273), Venugopalarao Vikram (11436255), Ravi Kumar Talabhakthula (11436276), Dixit Girish (11436246), Branko Mitasev, Dixit Girish, Chiranjeevi Terli, Jiong Yang (82529), Vijay Kalla (11436270), Pavan Kumar Rayaprolu, Anil Shahaji Khile (11436249), Srikanth Bathula, Srinivasa Rao Sugandham, Chiranjeevi Terli (11436267), Srinivasa Rao Sugandham (11436264), Vijay Kalla, Ravi Kumar Talabhakthula, Fabian Gusovsky (6755774), Francis G. Fang, Bruno Melillo (1378404), Jiong Yang, Anil Shahaji Khile, Masaharu Gotoda, Venkata Sasidhar Balla, Srikanth Bathula (11436261)   +35 more
core   +1 more source

Influence of Fusion Temperature on Nonisothermal Crystallization Kinetics of Polyamide 6 [PDF]

, 2023
The effect of fusion temperature and duration on the nonisothermal crystallization kinetics of polyamide 6 (PA6) was investigated using differential scanning calorimetry (DSC) and a polarized optical microscope (OM).
Petr Svoboda, Ahmed Nasr
core   +2 more sources

Diffraction-based automated crystal centering

Journal of Synchrotron Radiation, 2007
A fully automated procedure for detecting and centering protein crystals in the X-ray beam of a macromolecular crystallography beamline has been developed. A cryo-loop centering routine that analyzes video images with an edge detection algorithm is first used to determine the dimensions of the loop holding the sample; then low-dose X-rays are used to ...
Jinhu, Song, Deepa, Mathew, Sandhya A, Jacob, Laura, Corbett, Penjit, Moorhead, S Michael, Soltis   +5 more
openaire   +2 more sources

Heat Wave of Excitation of Hot Centers During Explosive Crystallization of Amorphous Films [PDF]

, 2022
Дано на качественном уровне теплофизическое описание процесса возбуждения горячих центров кристаллизации в аморфной пленке, напыленной на подложку. Получены аналитические зависимости, определяющие пространственно-временные колебания теплового поля между
Шабловский, О. Н., Кроль, Д. Г.   +1 more
core  

Crystallization of the Reaction Center of Photosystem II [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 1996
The reaction center of Photosystem II (RCII) is the large multi-subunit membrane protein-pigment complex which the site of the primary photochemical reactions of oxygenic photosynthesis. These reactions include charge separation, sequential electron transfer and oxygen evolution (1,2).
openaire   +1 more source

Scientific problem of modifying of primary crystals a β -phase of silumin castings. Solutions

Литьë и металлургия, 2019
It is shown that the phosphorum which is contained in a silumin melt in number of 0,01–0,04% exists in the dissolved form. For a solution of the problem of modifying of primary crystals of a β -phase in silumin castings it is necessary to accept a ...
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

NANOSTRUCTURAL PROCESSES OF MELTING AND CASTING OF CAST IRON WITH FLAKY GRAPHITE

Литьë и металлургия, 2017
It is shown that melting and casting of cast iron with flaky graphite are the complex physical and chemical nanostructural processes. The majorrole in these processis played by the centers of crystallization of dendrites of graphite, graphite ...
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

NANOSTRUCTURIZATION IN FOUNDRY PROCESSES

Литьë и металлургия, 2018
It is shown that at crystallization of alloys the sophisticated nanostructural processes have place. The nanocrystals of phases, their atoms, the centers of crystallization of dendrites, surface-active elements, gases, modifying elements, poorly soluble ...
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Body Centered Photonic Crystal

International Letters of Chemistry, Physics and Astronomy, 2016
The photonic energy bands of body centered cubic photonic crystals formed from SiO 2 , GaP, Si, InAs, GaAs, InP, Ge and BaSrTiO 3 dielectric spheres drilled in air and air holes drilled in these dielectric mediums were calculated using the plane wave ...
K.B.S.K.B. Jayawardana, K A I L Wijewardena Gamalath   +1 more
openaire   +1 more source