Search results for "name"
showing 10 items of 8538 documents
Understanding the White-Emitting CaMoO4 Co-Doped Eu3+, Tb3+, and Tm3+ Phosphor through Experiment and Computation
2019
In this article, the synthesis by means of the spray pyrolysis method, of the CaMoO4 and rare-earth cation (RE3+)-doped CaMoO4:xRE3+ (RE3+ = Eu3+, Tb3+, and Tm3+; and x = 1, 2, and 4% mol) compounds, is presented. The as-synthesized samples were characterized using X-ray diffraction, Rietveld refinement, field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, and photoluminescence (PL) spectroscopy. To complement and rationalize the experimental results, first-principles calculations, at the density functional theory level, have been performed to analyze the band structure and density of states. In addition, a theoretical method based on the calculations of surface energie…
L'analisi dei testi letterari per l'infanzia
2011
Nell’attività di insegnamento la promozione della lettura è un compito fondamentale, un compito affascinante che comporta lo stimolare, l’orientare, il riflettere per far riflettere. L’insegnante che “educa” l’alunno a leggere deve essere in grado di accompagnare nel cammino di questa avventura, in modo che l’opera letteraria diventi per il giovane strumento di crescita, di riflessione, di interiorizzazione, di godimento. Per scegliere libri interessanti e validi è necessario che, oltre all’intuizione ed alla sensibilità letteraria, gli insegnanti posseggano una specifica competenza. Nell’ambito dell’insegnamento di Letteratura per l’infanzia, all’interno del corso di laurea in Scienze dell…
Językowy obraz świata w dolnośląskich oronimach pochodzących od nazw roślin i zwierząt
2019
The subject matter of analysis is oronyms, i.e. the names of mountains and hills deriving from the names of plants and animals. The names of mountains can perform the function of localization (a relation between an object and the toponym), characterization (the topographic character of an object, the shape of an object, the quality of substrate, the fauna and flora in an area), they can express the relation between an object and a man (possessive names) and they can be a reflection of material or spiritual culture. Names deriving from the names of flora and fauna are predominantly created on the basis of metonymy which makes use of the contiguity principle, replacing objects with the names …
E-Sports y brecha de género: la percepción de las profesionales españolas
2019
The present paper aims to identify the causes of under-representation of women in E-sports. According to a genre perspective, interest in videogames at the amateur level is quite similar. However, in its professional level, female participation becomes very limited. The fact that physical effort is irrelevant (a requirement for ?traditional sports?) could be considered a variable that would negatively affect greater to equality in the conditions of access and participation of women in electronic sports. Against any predictions, the data on the presence of women are elocuent: few women, with much lower wages than men to remunerate same skills, and a general complaint by the female profession…
Effect of thermal annealing on the luminescence of defective ZnO nanoparticles synthesized by pulsed laser ablation in water
2016
This work concerns ZnO nanoparticles (NPs), with sizes of tens of nm, produced by ablation with a pulsed Nd:YAG laser of a Zn plate in H2O. TEM images evidence the formation of nanoparticles with sizes of tens of nm. Moreover, HRTEM images and Raman spectra show that the distance between the crystalline planes and the vibrational modes are consistent with ZnO nanocrystal in wurtzite structure. Their optical properties are characterized by two emission bands both excited above the energy gap (3.4 eV): the first at 3.3 eV is associated with excitons recombination, the second at 2.2 eV is proposed to originate from a singly ionized oxygen vacancy. The green emission is independent of water pH,…
Thermal anomalies detection in a photovoltaic plant using artificial intelligence: Italy case studies
2021
This paper proposes the application of artificial intelligence techniques for the identification of thermal anomalies that occur in a photovoltaic system due to malfunctions or faults, with the aim to limit the energy production losses by detecting faults at an early stage. The proposed approach is based on a Thermographic Non-Destructive Test conducted with Unmanned Aerial Vehicles equipped with a thermal imaging camera, which allows the detection of abnormal operating conditions without interrupting the normal operation of the PV system rapidly and cost-effectively. The thermographic images and videos are automatically inspected using a Convolutional Neural Network, developed by an open-s…
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…
Zasłużeni dla miasta. O mikrosystemie plateonimicznym Opola
2016
The Opole urban nomenclature has for many years been a space of special homage paid to the local heroes. Taking into account this fact, in my research I have concentrated on Opole streets, squares, buildings and estates named aftcr persons associated with this region. The analysis covered not only outstanding historical personalities, bul also contemporary authorities - writers, politicians and scientists. The purpose of this paper was to present the most important nomenclature trends associated with the regional history and to show the impact of names commemorating prominent historical figurcs on the contemporary image of Opole. This urban nomenclature microsystem eonsisting of about one h…
Âzyk do Kieva dovedët: âzykovaâ kommunikaciâ v oblasti turizma
2008
The paper covers the issues related to the intercultural communication in the area of tourism. The problems of linguistic communication are considered from the point of view of the adequacy of the translation of texts or statements related to the promotion of a country, a region, a place and a tourist objects into Russian or German. Historical information included in the texts of tourist guides appears to be an important matter in this area, because in the historiography of particular linguistic and cultural areas of language, there are noticeable differences in perception and interpretation of some historical facts. A notable issue is the adeąuacy of the translation of proper names relatin…
Impianti di trigenerazione per il risparmio energetico nel settore alberghiero in aree mediterranee
2008
Il settore alberghiero presenta prospettive particolarmente favorevoli alla diffusione degli impianti di cogenerazione, grazie alla simultanea presenza di una domanda elettrica e di una termica a bassa temperatura, che consentono, in particolare per gli alberghi che funzionano durante tutto l’anno, significativi risparmi di energia primaria e notevoli benefici sia economici che ambientali. Nei paesi del bacino Mediterraneo, in particolare, la diffusione dei frigoriferi ad assorbimento presenta grandi vantaggi per l’opportunità di integrare, nei cosiddetti impianti di trigenerazione o CHCP, la domanda di energia frigorifera all’interno del processo di “sfruttamento in cascata” del potenziale…