Search results for "State."

Overview of Power Electronic Switches: A Summary of the Past, State-of-the-Art and Illumination of the Future.

2020

As the need for green and effective utilization of energy continues to grow, the advancements in the energy and power electronics industry are constantly driven by this need, as both industries are intertwined for obvious reasons. The developments in the power electronics industry has over the years hinged on the progress of the semiconductor device industry. The semiconductor device industry could be said to be on the edge of a turn into a new era, a paradigm shift from the conventional silicon devices to the wide band gap semiconductor technologies. While a lot of work is being done in research and manufacturing sectors, it is important to look back at the past, evaluate the current progr…

Nekustamā īpašuma tirgus tiesiskā regulējuma realitāte un tiesību efektivitāte (2006-2016.g)

2018

Ņemot vērā, ka 1995.gada un 2007.gada krīzes ievērojami nobremzēja nekustamā īpašuma tirgus veidošanas procesu Latvijā, šodien ir vērojams aktivitātes pieaugums visās nekustamā īpašuma tirgus jomās, kaut gan par pilnīgi sakārtotu nekustamā īpašuma tirgu runāt vēl pāragri. Tieši tāpēc darbam ir liela nozīmē tālākai nekustamā īpašuma tirgus attīstībai. Tajā tie aplūkota nekustamā īpašuma tirgus situācija sākot ar pirmskrīzes periodu un izanalizēti vissaktuālākie jautājumi, par kuriem pēdējo gadu laikā spriež visi nekustamo īpašumu tirgus speciālisti. Pirmā darba nodaļa ir vispārēja nodaļa, kurā informācija tiek sniegta, lai sagatavotu lasītāju turpmākajām tēmām un iepazīstināt ar galvenajiem …

Computer aided scheduling and routing of vehicle-carrier fleet—a case study

2016

This paper presents a case study of development of an information system for a large enterprise from vehicle-transport industry. A novel optimization model and algorithms developed to solve scheduling and routing of vehicle-carrier fleet are presented and discussed. Carried out qualitative experiments confirmed the usability of developed user-guided search paradigm and high performance of autonomous algorithmic solution search methods.

Time-like Proton Form Factors with Initial State Radiation Technique

2022

Electromagnetic form factors are fundamental quantities describing the internal structure of hadrons. They can be measured with scattering processes in the space-like region and annihilation processes in the time-like region. The two regions are connected by crossing symmetry. The measurements of the proton electromagnetic form factors in the time-like region using the initial state radiation technique are reviewed. Recent experimental studies have shown that initial state radiation processes at high luminosity electron-positron colliders can be effectively used to probe the electromagnetic structure of hadrons. The BABAR experiment at the B-factory PEP-II in Stanford and the BESIII experim…

A Time-Non-Homogeneous Double-Ended Queue with Failures and Repairs and Its Continuous Approximation

2018

We consider a time-non-homogeneous double-ended queue subject to catastrophes and repairs. The catastrophes occur according to a non-homogeneous Poisson process and lead the system into a state of failure. Instantaneously, the system is put under repair, such that repair time is governed by a time-varying intensity function. We analyze the transient and the asymptotic behavior of the queueing system. Moreover, we derive a heavy-traffic approximation that allows approximating the state of the systems by a time-non-homogeneous Wiener process subject to jumps to a spurious state (due to catastrophes) and random returns to the zero state (due to repairs). Special attention is devoted to the cas…

β decay of 133In : γ emission from neutron-unbound states in 133Sn

2019

Excited states in 133Sn were investigated through the β decay of 133In at the ISOLDE facility. The ISOLDE Resonance Ionization Laser Ion Source (RILIS) provided isomer-selective ionization for 133In, allowing us to study separately, and in detail, the β-decay branch of 133In Jπ = (9/2+) ground state and its Jπ = (1/2−) isomer. Thanks to the large spin difference of the two β-decaying states of 133In, it is possible to investigate separately the lower and higher spin states in the daughter, 133Sn, and thus to probe independently different single-particle and single-hole levels. We report here new γ transitions observed in the decay of 133In, including those assigned to the deexcitation of th…

«Necessità della tirannide». Governo autoritario e ideologia della comunità nella prima metà del Trecento

2013

The resonant state at filling factor {\nu} = 1/2 in chiral fermionic ladders

2017

Helical liquids have been experimentally detected in both nanowires and ultracold atomic chains as the result of strong spin-orbit interactions. In both cases the inner degrees of freedom can be considered as an additional space dimension, providing an interpretation of these systems as synthetic ladders, with artificial magnetic fluxes determined by the spin-orbit terms. In this work, we characterize the helical state which appears at filling $\nu=1/2$: this state is generated by a gap arising in the spin sector of the corresponding Luttinger liquid and it can be interpreted as the one-dimensional (1D) limit of a fractional quantum Hall state of bosonic pairs of fermions. We study its main…

Dirakův kužel a pseudogapped hustota stavů v topologické polovině Heuslerovy sloučeniny YPtBi

2016

Topologické izolátory (Tis) jsou zajímavé materiály, které vykazují nebývalé vlastnosti. . Zde jsme prozkoumali sloučeniny YPtBi jako příklad ze třídy polovu-Heuslerových materiálů. Topological insulators (TIs) are exciting materials, which exhibit unprecedented properties, such as helical spinmomentum locking, which leads to large torques for magnetic switching and highly efficient spin current detection. Here we explore the compound YPtBi, an example from the class of half-Heusler materials, for which the typical band inversion of topological insulators was predicted. We prepared this material as thin films by conventional cosputtering from elementary targets. By in situ time-of-flight mo…

Reliģiski-filozofiski raksti, XXIII

2017

Religious-philosophical writings XXIII are devoted to the international conference “The Church and the Totalitarian Regime: Secularization and Strategies of Survival”. This conference was organised by the researchers of the Institute of Philosophy and Sociology of the University of Latvia within the framework of the project of the Latvian Council of Science “Thematization of Religious Experience in the Situation of Post-Liberal Spirituality: Latvian Case”. The conference took place in Riga on the 27th–28th of October 2016. The conference discussed the following issues: Church-power relations in a totalitarian state; politics and legislation in the field of religion; administrative control i…