transition energy
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Author(s):  
Christian Zeuthen ◽  
Lasse Rabøl Jørgensen ◽  
Lise Joost Støckler ◽  
Martin Roelsgaard ◽  
Ann-Christin Dippel ◽  
...  

In recent years hierarchical thermoelectric materials have been engineered to reach record breaking thermoelectric figures-of-merit (zT) making them attractive in green transition energy conversion applications. PbTe constitutes an archetypical example,...


2021 ◽  
pp. 104002
Author(s):  
V. Pačebutas ◽  
V. Karpus ◽  
A. Geižutis ◽  
M. Kamarauskas ◽  
A. Selskis ◽  
...  

2021 ◽  
Vol 136 (11) ◽  
Author(s):  
M. Giovannozzi ◽  
L. Huang ◽  
A. Huschauer ◽  
A. Franchi

AbstractCrossing the transition energy is always a delicate process, representing a potential source of strong perturbations of the dynamics of charged particle beams in a hadron circular accelerator. Since the first generation of multi-GeV rings, intense studies have been devoted to understanding the possible harmful mechanisms involved in transition crossing and to devise mitigation measures. Nowadays, several circular particle accelerators are successfully operating across the transition energy and this process is well mastered. In a completely different context, stable resonances of the traverse phase space have been proposed as new means of manipulating charged particle beams. While the original aim of such a proposal was multi-turn extraction from the CERN Proton Synchrotron to the Super Proton Synchrotron, many more applications have been proposed and studied in detail. In this paper, the two topics, i.e. transition crossing and stable resonances, have been brought together with the goal of providing a novel and non-adiabatic approach to perform a clean transition crossing. The idea presented here is that by judiciously using sextupoles and octupoles it is possible to generate stable islands of the horizontal phase space. These islands represent a second closed orbit whose properties can be selected independently of those of the standard, i.e. central, closed orbit. This provides a means of performing a non-adiabatic change of the transition energy experienced by the charged particles by displacing the beam between the two closed orbits.


2021 ◽  
Vol 105 (5) ◽  
pp. 100-112
Author(s):  
Vladislav Belov ◽  

The author continues the study of the impact of the coronavirus crisis on the economic and political space of Germany. The second article outlines the features of the double transition ‒ energy and digital ‒ to a climate-neutral economy. Germany is carrying it out within the framework of the European Green Deal, the adoption of which almost coincided with the outbreak of the COVID-19 pandemic. The coronavirus crisis has become a catalyst for the transformation processes in the field of energy and digitalization, many of which Berlin began to implement long before the onset of its consequences. Lockdowns have led to a reduction in industry's primary energy and electricity consumption, motivated businesses to relocate employees to home-based work, and accelerate the introduction of new digital technologies. The coronavirus crisis has become a challenge for government departments, healthcare institutions, secondary and higher education, which management and employees were not ready for a quick use of distance technologies. The author analyzes the structural policy of the coalition government, the contribution of German-French initiatives and projects to the implementation of the double transition in the field of energy, cloud technologies and artificial intelligence, assesses the role of a new Climate Protection Law


2021 ◽  
Author(s):  
Taro Nishinaka

A triplex DNA model bound to a helical filament of homologous recombination protein, such as Escherichia coli RecA, is presented. This model suggests that a function of the nucleoprotein filament could be at least partly attributed to the lowering of transition energy of duplex DNA structure having the E-type sugar puckers. Key events during homologous recombination such as sequence recognition, base pair switching and elongation/contraction of the helical pitch may correlate with the pseudo-rotation angle of sugar puckers along the N-, E-, S- and W-types. A conformational change of sugar puckers during the reaction is resolved into two motions by introducing a pair of parameters, μ1 and ν3, which defines a swing orientation of bases and a torsional angle of phosphate backbones, respectively.


2021 ◽  
Vol MA2021-02 (13) ◽  
pp. 646-646
Author(s):  
Ashok Kumar Kaliamurthy ◽  
Hyeong Cheol Kang ◽  
Francis Kwaku Asiam ◽  
Kicheon Yoo ◽  
Jae-Joon Lee

Solar RRL ◽  
2021 ◽  
Vol 5 (10) ◽  
pp. 2170101
Author(s):  
Ashok Kumar Kaliamurthy ◽  
Hyeong Cheol Kang ◽  
Francis Kwaku Asiam ◽  
Kicheon Yoo ◽  
Jae-Joon Lee

2021 ◽  
Vol 900 ◽  
pp. 94-102
Author(s):  
Nada Adnan Sabri ◽  
Hadi J.M. Al-Agealy

A theoretical charge transport rate approach has taken to study the charge transfer properties in non-homogeneous N3-MgO systems. It develops at the fully quantum transition theory by means of transition energy, potential, driving energy and coupling constant. It is obtained that transition energy is determined by the donor acceptor scenario, dependent on the radii of N3 and MgO, dielectric constant and refractive index of solvents. The transition energy of charge carriers increased with increased dielectric constant and decreased refractive index of solvents. Transition energy of N3-MgO system reach to top with methanol (0.582 ev) and has minimum with Chlorobenzene (0.104eV). Dependences of the driving energy versus chemical potential of N3 dye and conduction band of semiconductor with potential barrier, the charge transfer rate are increased with decreased driving force of system. It is established that increased coupling constant factor reduces to increased charge transfer rate.


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