1,749,965 research outputs found
New resonant behavior in the spin resolved photoionization of the rare gas atoms Kr 3d and Xe 4p
Get PDFKhalil T. New resonant behavior in the spin resolved photoionization of the rare gas atoms Kr 3d and Xe 4p. Bielefeld (Germany): Bielefeld University; 2002.In the first part of this thesis, the transferred spin polarization of resonantly excited Auger electrons of Kr 3d-1 5p photoionized by circularly polarized light was measured. The transferred spin polarization is related to the orientation A10 (and alignment A20) of core holes induced by the primary photoionization process, and to the intrinsic parameters [xi]1 which characterizes the transferred spin polarization of Auger electrons and [alpha]2, the anisotropy parameter which characterizes the angular intensity distribution of Auger electrons. Due to the selection rules of dipole excitation of Kr 3d-1 5p atoms i.e. Ji=1, A10 and A20 are known, [alpha]2 was calculated and measured by Kitajima et al. The calculation of [xi]1 was performed by N. M. Kabachnik and S. Fritzsche.
In the second part of this thesis, the spin polarization of Xe 4p near the ionization threshold was measured to examine the calculations of Cherepkov of contribution of the lowest order nondipole term; the electric-dipole-electric-quadrupole interference terms to the spin polarization of Xe np photoelectrons. The quadrupol matrix elements of the np->[epsilon]f transitions in Xe calculated in RPAE have strong maxima near the ionization threshold. This behaviour is similar to the well-known maxima in the dipole nd->[epsilon]f transitions. These dipole nd->[epsilon]f transitions are responsible for the so-called giant resonances in the total photoionization cross section. They are attributed to the double-well shape of the effective potential for the dipole [epsilon]f partial waves. Both the RPAE non-relativistic calculation from Cherepkov and the relativistic IPA adapted calculation from Derevianko agree qualitatively with the measured nondipole component of electron spin polarization
Replication Data for: Violence and Financial Decisions: Evidence from Mobile Money in Afghanistan
No full textBlumenstock, Joshua E., Callen, Michael, Ghani, Tarek, and Gonzalez, Robert, (2024) “Violence and Financial Decisions: Evidence from Mobile Money in Afghanistan.” Review of Economics and Statistics 106:2, 352–369
A visual protocol for recording adult Oikopleura doica behavior
No full text<p>Video documenting the process of performing video recordings of adult Oikopleura dioica animals. This video was generated and curated by Ingrid Cavazos and Tarek Ebida under the guidance and supervision of Sissel Norland and Marios Chatzigeorgiou. </p>
Reception - Tarek Fadel, Paul Miller, Sarah Harding
No full textTarek Fadel (Class of 2003), Paul Miller (Class of 2000) and Associate Dean Sarah Harding at the 125 Alumni of Distinction reception.https://scholarship.kentlaw.iit.edu/alumni_125/1166/thumbnail.jp
Character Values Education Through Tarek Pukat Dance for UNIKI Performing Arts Education Students
Get PDFThe purpose of this study was to determine the character value education in the Tarek Pukat dance of UNIKI Performing Arts education. This study uses a qualitative descriptive method, and a case study approach. Data collection techniques use the stages of observation, interviews and document analysis. With the aim of examining the character values contained in the Tarek Pukat Dance. A qualitative approach with a case study design was used to specifically understand character values in educational praxis through the Tarek Pukat Dance. The results of this study indicate that in the Tarek Pukat dance, the character value education that is seen is in the form of religious, responsibility, tolerance, discipline, cooperation values, humility and this is packaged into character value education in the Tarek Pukat Dance, namely religious values that are born in the Tarek Pukat Dance contain strong religious values, such as patience and perseverance, discipline, humility and responsibility. Social values in the Tarek Pukat Dance such as cooperation, mutual cooperation, humility and tolerance. Cultural values that can be taken from the Tarek Pukat Dance symbolize Acehnese cultural values, such as strength and resilience of local culture and love of the homeland. Aesthetic value: Tarek Pukat Dance also symbolizes aesthetic values, such as beauty and art from local culture. Tarek Pukat dancers in UNIKI performing arts education have and are able to implement the religious values of Tarek Pukat Dance used in religious ceremonies, social events, such as weddings and other events. Cultural events such as festivals have aesthetics, such as art performance
Diseño curatorial en la poética y política de la etnografía actual: una Conversación entre Tarek Elhaik y George E. Marcus
No full textEn este diálogo, George Marcus y Tarek Elhaik empiezan reexaminando los cambios en la práctica investigativa y los paradigmas iniciados hace más de veinte años por las deliberaciones de Writing Culture y continúan evaluando el devenir de esos debates en el pensamiento y la práctica antropológica contemporánea. Entre una figura clave del momento de Writing Culture y un antropólogo formado en el período que siguió a esas discusiones se produce un intercambio, una exploración y un refinamiento de afinidades conceptuales. La conversación genera un conjunto de conceptos estratégicos clave del repertorio modernista y cosmopolita, apreciado por ambos antropólogos (montaje, diseño, instalación), que influye en la figura emblemática del trabajo de campo. El llamado de Marcus a principios de los 90 por una etnografía como antídoto al realismo desesperanzador de películas y textos etnográficos y de los recientes “para-sitios” de performances en el Centro de Etnografía de la Universidad de California en Irvine se combina con la propuesta de Elhaik de la práctica curatorial como procedimiento, método y modo de producción teórica que abra la posibilidad para idear y componer un “libro-instalación”. La conversación propone tales figuras emergentes y nuevos experimentos como modos alternativos de mediación de la etnografía en proceso y, quizás, como sustitutos del trabajo de campo en sí mismo
Interview with Tarek El-Shennawy
No full textلقاء مع الناقد السينمائي المصري طارق الشناوي حول رأيه في تنظيم مهرجان القاهرة السينمائي الدولي. أجرى هذا اللقاء محمود الزواوي.An interview with Egyptian film critic Tarek El-Shennawy about his opinion on organizing the Cairo International Film Festival. Interview conducted by Mahmoud Zawawi
The Expansion Motor of Tarek Soukar Is a Real Global Warming Reducer
Get PDFGlobal warming matter is a word problem. Most solutions are preventative; they only avoid or reduce the heat emissions to the minimum. The natural solution for global warming matter is to increase vegetation. However, no industrial treatment to solve this problem has been invented yet. One great idea to solve this problem is to convert the extra heat to another shape of power. This method can really reduce global warming. Expansion Motor of Tarek Soukar represents this technical method .The expansion motor has not been addressed before, it is a new invention. It was supposed to be a solar engine, but it has proved that it is not limited to the Sun, but can be run by any other existing heat. All engines and motors are heat diffusers, while the expansion motor is a heat absorbent. As a result, with such a solution global warming is not a problem anymore, it became a new resource of power. Researchers and manufacturers are requested to start adopting, developing, producing this motor and spreading it widely
IoD swarms collision avoidance via improved particle swarm optimization
No full textDrones flights have been investigated widely. In the presence of high density and complex missions, collision avoidance among swarm of drones and with environment obstacles becomes a challenging task and indispensable. This paper aims to enhance the optimality and rapidity of three dimensional IoD path generation by improving the particle swarm optimization (PSO) algorithm. The improvements include using chaos map logic to initialize the population of PSO. Also, adaptive mutation is utilized to balance local and global search. Then, the inactive particles are replaced by new fresh particles to push the solution toward global optimal. Furthermore, Monte Carlo simulation is carried out and the results are compared with slandered PSO and with recent work CIPSO. The results exhibit significant improvement in convergence speed as well as optimal solution which prove the ability of proposed method to generate safety path for IoD formation without collision with terrain obstacle and among drones.The authors would like to acknowledge the support of the department of the computer engineering at King Fahd University of Petroleum and Minerals for this work.Ahmed, G (corresponding author), King Fahd Univ Petr & Minerals, Comp Engn Dept, Dhahran, Saudi Arabia.
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UAV-enabled intelligent traffic policing and emergency response handling system for the smart city
No full textAs modern cities expand and develop, the resultant increase in population density gives rise to the need for smart solutions to cope with the demands applied to the infrastructure of the city. In this paper, we investigate the shortcomings of traffic policing and emergency response handling systems; propose an intelligent, autonomous UAV-enabled solution; and describe the system in a simulated environment. Several scenarios of traffic monitoring and policing system are considered in the simulation: traffic light violations and accident detection, mobile speeding traps and automated notification, congestion detection and traffic rerouting, flagged stolen vehicles/pending arrest warrants and vehicle tracking using UAVs, and autonomous emergency response handling systems. Furthermore, smart city infrastructure enable intelligent handling of emergencies by providing traffic light prioritization for ground emergency response units to reduce delay for patient care, automated physical bollard on routes with congested points due to accidents or hazards, first responder support UAV units-medical supplies UAV, fire fighting UAV to combat or control small fires, and numerous other benefits. Lastly, we present the results of the simulated system and discuss our findings.This study received financial support from the Special Research Fund (BOF) of Hasselt University, Belgium.
Authors would like to thank the Department of Computer Engineering, King Fahd University of Petroleum and Minerals for their support in this research.Beg, A (reprint author), King Fahd Univ Petr & Minerals, Dept Comp Engn, Az Zahran, Saudi Arabia.
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