Browsing Articles by Title

Now showing items 19-30 of 30

Photon propagation in slowly varying inhomogeneous electromagnetic fields

Karbstein, Felix; Shaisultanov, Rashid (American Physical Society, 2015-04)

Starting from the Heisenberg-Euler effective Lagrangian, we determine the photon current and photon polarization tensor in inhomogeneous, slowly varying electromagnetic fields. To this end, we consider background field ...
Pole dark energy

Linder, E. V. (Physical Review, 2019-11)

Theories with a pole in the kinetic term have been used to great effect in studying inflation, owing to their quantum stability and attractor properties. We explore the use of such pole kinetic terms in dark energy theories, ...
SEM imaging of acoustically stimulated charge transport in solids

Emelin, E.; Cho, H. D.; Lee, J.; Kang, Tae Won; Panin, Gennady; Roshchupkin, Dmitry; Tynyshtykbayev, Kurbangali B.; Insepov, Z. (Applied Physics Letters, 2017-06-29)

Applications of surface acoustic waves (SAWs) are of great interest for solar energy for the acoustically stimulated transport of charge carriers generated in semiconductors and dielectrics under the influence of light.1–4 ...
Start-up of Nazarbayev University Student Received Foreign Investment of $ 110,000

Kamiyeva, Magrifa; Yessekenova, Zhanetta (Communications Department, Nazarbayev University Research and Innovation System, 2018-10)

We interviewed the alumni of the ABC Business Incubation Program and the ABC Quick Start Acceleration Program, a 3rd year student majoring in Electrical Engineering at Nazarbayev University, Miras Sovetov. It is a matter ...
Systems-Level Characterization of Microchannel Plate Detector Assemblies, using a Pulsed sub-Picosecond Laser

Wetstein, M.; Adams, B.; Chollet, Matthieu; Webster, Preston; Jokela, Slade; Veryovkin, Igor; Zinovev, Alex; Elam, Jeffrey; Mane, Anil; Peng, Qing; Frisch, Henry; Insepov, Z. (Physics Procedia, 2012-12-31)

Abstract Microchannel plate photomultiplier tubes (MCP-PMTs) are compact imaging detectors, capable of micron-level spatial imaging and timing measurements with resolutions well below 10 picoseconds. The Large Area Picosecond ...
A ternary EAM interatomic potential for U-Mo alloys with xenon

Smirnova, D.E.; Kuksin, A. Y.; Starikov, S. V.; Stegailov, V. V.; Rest, J.; Yacout, A. M.; Insepov, Z. (Modelling and Simulation in Materials Science and Engineering, 21(3), 2013-04)

A new interatomic potential for a uranium-molybdenum system with xenon is developed in the framework of an embedded atom model using a force-matching technique and a dataset of ab initio atomic forces. The verification of ...
THICK TARGET INVERSE KINEMATICS APPROACH FOR NEUTRON EMISSION

Goldberg, V. Z.; Gazeeva, E. M.; Golovkov, M. S.; Bezbakh, A. A.; Nauruzbayev, D. K.; Nurmukhanbetova, A. K.; Kurmanaliyev, Zh.; Serikov, A.; Zalewski, B.; Rogachev, G. V. (PHYSICAL REVIEW RESEARCH, 2020-08-12)

We applied the thick target inverse kinematics method for a study of resonances decaying through neutron emission. In this approach, the time of flight of the resonant neutrons is defined by the movement of the heavy ...
Thiol-modified activated carbon material for sensor technology

Zhexembekova, Anar; Akhmetova, Nuriya; Molkenova, Anara; Bakenov, Zhumabay; O'Hare, Danny (2017-01-01)

Abstract Activated carbon (AC) is a material of great potential in production of membranes for a construction of novel electrochemical sensors due to highly microporous structure and greater surface area per unit volume ...
Thiol-modified activated carbon material for sensor technology

Zhexembekova, Anar; Akhmetova, Nuriya; Molkenova, Anara; Bakenov, Zhumabay; O'Hare, Danny (Materials Today: Proceedings, 2017-01-01)

Abstract Activated carbon (AC) is a material of great potential in production of membranes for a construction of novel electrochemical sensors due to highly microporous structure and greater surface area per unit volume ...
Three-dimensional imaging of polymer materials by Scanning Probe Tomography

Alekseev, Alexander; Efimov, Anton; Loos, Joachim; Matsko, Nadejda; Syurik, Julia (European Polymer Journal, 2014-03-01)

Abstract Scanning Probe Tomography (SPT) is a new method for nanoscale volume imaging of sample morphology and property distribution based on Scanning Probe Microscopy (SPM). In this review we describe and discuss recent ...
Using pyridal[2,1,3]thiadiazole as an acceptor unit in a low band-gap copolymer for photovoltaic applications

Ibraikulov, Olzhas A.; Bechara, Rony; Chavez, Patricia; Bulut, Ibrahim; Tastanbekov, Dias; Leclerc, Nicolas; Hebraud, Anne; Heinrich, Benoît; Berson, Solenn; Lemaitre, Noëlla; Chochos, Christos L.; Lévêque, Patrick; Heiser, Thomas (Organic Electronics, 2015-08-01)

Abstract In this report, we explore the optoelectronic properties of a low band-gap copolymer based on the alternation of electron rich (thiophene and thienothiophene units) and electron deficient units (pyridal[2,1,3]thiadiazole ...
Using Von Mises-fisher Distribution for Polymer Conformation Analysis in Multi-scale Framework

Abzhanov, Aidos; Kallemov, Bakytzhan (Procedia Engineering, 2013-01-01)

Abstract In this study we consider the statistical representation of polymer conformations, which is very important when modeling rheology at macroscopic scales. It is impossible to track all relevant microscopic variables ...