Search results for "UPS"
showing 10 items of 1425 documents
On the de-energization of over-head low-voltage lines under high-impedance fault conditions
2018
Downed distribution conductors in overhead distribution systems, may not be a concern for equipment, but greatly challenge the safety of persons, as well as the integrity of properties. Upstream overcurrent protective devices may not be able to detect the magnitudes of fault currents resulting from these high-impedance faults. Even though protective devices capable to detect such faults have been available on the market, not all the utilities have equipped their stations with these products, likely due to the costs. In this paper, the authors formalize the problem, and propose a possible cost-effective solution for the low-voltage over-head lines with neutral wire. Such solution includes a …
FAST EDGE-FILTERED IMAGE UPSAMPLING.
2011
We present a novel edge preserved interpolation scheme for fast upsampling of natural images. The proposed piecewise hyperbolic operator uses a slope-limiter function that conveniently lends itself to higher-order approximations and is responsible for restricting spatial oscillations arising due to the edges and sharp details in the image. As a consequence the upsampled image not only exhibits enhanced edges, and discontinuities across boundaries, but also preserves smoothly varying features in images. Experimental results show an improvement in the PSNR compared to typical cubic, and spline-based interpolation approaches.
CARACTERÍSTICAS MOTIVACIONALES DE PREESCOLARES CON BAJO RENDIMIENTO MATEMÁTICO
2016
El presente trabajo pretende profundizar en la motivación hacia el aprendizaje y el estilo atribucional de preescolares con bajo rendimiento matemático en relación a dos grupos de referencia: rendimiento medio y riesgo de Trastorno Específico de Aprendizaje con Dificultad Matemática (TEAP-DM). Participaron en el estudio 209 preescolares categorizados en función de su nivel de rendimiento aritmético mediante una prueba estandarizada. Se evaluaron los constructos de competencia-motivación, atención-persistencia y actitud hacia el aprendizaje, relacionadas con la motivación hacia el aprendizaje, y de internalidad, estabilidad y globalidad del estilo atribucional. Los resultados mostraron difer…
Ergonyms of Educational and Cultural spheres in two of Baltic States cities
2020
Daugavpils (Latvia) and Narva (Estonia) are cities in the Baltic States and signifi cant cultural and economic centres of their respective countries. These cities are characterized by a minority of nationals (19.8% of residents of Daugavpils are Latvian, 4% of residents of Narva are Estonian) and a similar linguistic situation: there is a dominance of Russian in the press, television and radio, but the state language prevails in the urban language signs.The aim of the study is to analyse the linguistic and extralinguistic means used for the creation of ergonyms of educational and cultural spheres. The main criteria for the analysis are: language choice, grammatical structures, sources of pr…
The establishment of an organic farmers'market as a training case study for students of the faculty of agriculture in the University of Palermo
2011
Despite the modest regional consumption of organic products, Sicily is one of the most important European regions in surface area per number of companies active in organic farming. The University of Palermo, as early as 2000, to promote the development and success in this industry, the Faculty of Agriculture, introduced two major degree programs in "Organic Farming". The objective of these courses is to train graduates who are technically capable of supporting the organic farmers market, to promote and facilitate the expansion of the consumption of organic products, and to create employment opportunities for young graduates. At the end of 2009, in the area of these activities, a training an…
The establishment of an organic farmers’ market as a training case study for Students of the Faculty of Agriculture in the University of Palermo
2010
The role of organic agriculture in the island of Sicily is well recognised by farmers, though the consumption of organic products still fails to largely develop in the local markets, due to several reasons, among which the small scale agricultural system and its structural poor organization plays a major role. The University of Palermo holds two major undergraduate and graduate courses on “Organic Agriculture” with a very good participation of Students. A student’s association was established with the aim of: a) encourage the consumption of organic products coming from local small scale farmers, and b) endorse the capacity of creating new job skillnes and opportunities for graduate students…
Instruction of haematopoietic lineage choices, evolution of transcriptional landscapes and cancer stem cell hierarchies derived from an AML1-ETO mous…
2013
The t(8;21) chromosomal translocation activates aberrant expression of the AML1-ETO (AE) fusion protein and is commonly associated with core binding factor acute myeloid leukaemia (CBF AML). Combining a conditional mouse model that closely resembles the slow evolution and the mosaic AE expression pattern of human t(8;21) CBF AML with global transcriptome sequencing, we find that disease progression was characterized by two principal pathogenic mechanisms. Initially, AE expression modified the lineage potential of haematopoietic stem cells (HSCs), resulting in the selective expansion of the myeloid compartment at the expense of normal erythro- and lymphopoiesis. This lineage skewing was foll…
Prevalence and factors associated with circadian blood pressure patterns in hypertensive patients.
2009
Comment in Timing of antihypertensive therapy and circadian blood pressure pattern. [Hypertension. 2009] Timing of antihypertensive therapy and circadian blood pressure pattern. Almirall J, Martínez-Ocaña JC, Comas L. Hypertension. 2009 Jun; 53(6):e41; author reply e42. Epub 2009 May 4. Dipping comes of age: the importance of nocturnal blood pressure. [Hypertension. 2009]. Dipping comes of age: the importance of nocturnal blood pressure. O'Brien E. Hypertension. 2009 Mar; 53(3):446-7. Epub 2009 Jan 26.Nondipping in patients with hypertension. [Hypertension. 2009] Ambulatory blood pressure (BP) monitoring has become useful in the diagnosis and management of hypertensive individuals. In addit…
Podział wierzycieli na kategorie interesów w układzie częściowym
2018
Niniejsze opracowanie odnosi się do istotnego pod względem praktycznym i teoretycznym problemu dopuszczalności podziału wierzycieli na kategorie interesów w tzw. układzie częściowym. Układ częściowy nie jest osobnym rodzajem postępowania restrukturyzacyjnego: jest konstrukcją prawną możliwą do stosowania wyłącznie w postępowaniu o zatwierdzenie układu i w przyspieszonym postępowaniu układowym (art. 182 ust. 1 ustawy z 15.05.2015 r. - Prawo restrukturyzacyjne). Układ częściowy pozwala na restrukturyzację tylko części wierzytelności układowych, a także pozwala na „przymusowe” objęcie nim wierzytelności zabezpieczonych rzeczowo, z tym zastrzeżeniem że nie może w wyniku tego dojść do uszczerbku…
Entrepreneurs (novices vs. experts) and investors: Interaction and rationality dynamics (effectual vs. causal)
2019
The paper studies the mechanisms that govern the interactions between the entrepreneur (novice or expert) and the specific investors of emerging firms (business angels (BAs) and venture-capital firms (VCs)). Combining both literatures on entrepreneurship and entrepreneurial finance, our aim is to understand if the rationalities of these three actors help them or not to interact, and, to study how they influence each other during the firm's growth. In order to do so, we undertake two processual case studies. Our results show that effectual rationality underlines the interaction between the entrepreneur and the BAs at the creation of the firm, whilst causal rationality is helpful in the searc…