Search results for "AIC"

Standard testing of photovoltaic modules for use in renewable energy education

2015

A photovoltaic laboratory exercise has been devised and used in the educational curriculum of the Renewable Energy Programme at the University of Jyväskylä. The purpose of the experimental tasks is to give students of renewable energy a good understanding of standard testing procedures used in industry for characterising photovoltaic modules and to provide practical skills in sizing simple photovoltaic installations. Herein the experimental set-up, basic theory and measurement procedure are described. The experimental apparatus is simple to assemble and uses both standard laboratory equipment and recycled components. From the experimental results, the tested PV cell had a maximum efficiency…

Angliski runājošo studentu stāstījumu analīze par kultūras adaptāciju Latvijā

2021

Katru gadu Latvijas Universitātē pieaug starptautisko studentu skaits. Dzīvesvietas un kultūras maiņa ārvalstu studentiem var būt milzīgs izaicinājums un šīs izmaiņas var izraisīt kultūras adaptācijas stresu, kas savukārt var izraisīt fiziskas, psiholoģiskas un sociālās problēmas. Šī maģistra darba mērķis ir noskaidrot, kā Latvijas Universitātes angliski runājošo starptautisko grādu studentu stāstījumos ir atspoguļoti viņu kultūras adaptācijas izaicinājumi un kā viņi tiek galā ar šiem izaicinājumiem. Pētījums tika veikts Latvijas Universitātē. Kopumā tika aptaujāti 9 starptautiskie grāda (bakalaura un maģistra grāda) studenti no Kanādas, Krievijas, Venecuēlas, Šveices, Albānijas, Azerbaidžā…

Mathematical Methods for Research Excellence : Book of Abstracts

2022

Composizione liquida mordenzante, diretta a creare una struttura frattale antiriflesso sulla superficie di celle fotovoltaiche, composte da un substr…

2012

The Role of Corporate Social Responsibility and Its Influences on Vietnamese Small and Medium-sized Enterprises (SMEs) in Ho Chi Minh City

2020

In the new era, the importance of Corporate Social Responsibility (CSR) for business organizations is a matter of primary concern and has been researched by scholars around the world. Interest in CSR in business enterprises is often neglected due to its high-cost factor and the enterprises only focused on its operations and profitability for the existence of a business. If the enterprises have a good CSR policy within their development strategy, they will attain greater success. It was deemed that the empirical study adopted a descriptive survey method, 103 data samples were selected from the SMEs for analysis. The results indicated that SME management who adopted and implemented CSR polici…

Il Laboratorio per lo Sviluppo Sostenibile e il Risparmio Energetico (SDESLab) nell’ambito industriale siciliano

2009

L’articolo presenta le attività del Laboratorio per lo Sviluppo Sostenibile ed il Risparmio Energetico (SDESLAB) dell’Università degli Studi di Palermo nei confronti dell’ambito industriale, con particolare riguardo a quello siciliano. Vengono illustrati gli ambiti di intervento del Laboratorio: ricerca scientifica di base, consulenza alle industrie e alle imprese, formazione, informazione e divulgazione nei vari campi dello sviluppo sostenibile con particolare riguardo a energie rinnov- abili, azionamenti elettrici, automazione industriale e gestione automatizzata dell’energia. Vengono descritte le attrezzature di cui il Laboratorio si avvale per le proprie attività, i progetti di ricerca i…

A Leibniz variety with almost polynomial growth

2005

Abstract Let F be a field of characteristic zero. In this paper we study the variety of Leibniz algebras V ˜ 1 defined by the identity y 1 ( y 2 y 3 ) ( y 4 y 5 ) ≡ 0 . We give a complete description of the space of multilinear identities in the language of Young diagrams through the representation theory of the symmetric group. As an outcome we show that the variety V ˜ 1 has almost polynomial growth, i.e., the sequence of codimensions of V ˜ 1 cannot be bounded by any polynomial function but any proper subvariety of V ˜ 1 as polynomial growth.

Commutative Partial O*-Algebras

2002

This chapter is devoted to the integrability of commutative partial O*-algebras. Three notions of weak commutativity, commutativity and strong commutativity of an O*-vector space are defined and investigated. In Section 3.1, we analyze the relation between the integrability of weakly commutative O*-vector space M and the commutativity of the von Neumann algebra (M w ′ )′. In Section 3.2, we study the integrable extensions of partial O*-algebras. In Section 3.3, we describe another explicit example, namely, the partial O*-algebra M[S, T] generated by two weakly commuting symmetric operators S and T defined on a common dense domain in a Hilbert space. In particular, we investigate in detail t…

Formal specification of open standards and the case of RSS v2.0

2014

Open standardization seems to be very popular among software developers as it makes the standard's adoption by the software engineering community easier and smoother. Formal specification methods, on the other hand, while very promising, are being adopted by protocol engineers very slowly; the industry seems to have little motivation to move into this, almost unknown, territory.In this paper the authors present the i) idea of applying formal methods (formal specification techniques) to open standards' specifications, and ii) an example of a formal specification of open standards, RSS v2.0 in particular. The authors support and provide evidence for the advantages of the open standards formal…

Design of a Cleaning Program for a PV Plant Based on Analysis of Energy Losses

2015

Solar photovoltaic (PV) energy has grown significantly over the past few years. However, despite the increase in installed capacity, this energy source still raises important concerns related to the variability of power production. The short-term effects such as cloud shadowing and supply interruptions, as well as long-term effects such as dust accumulation, seasonal variation, and ageing of PV modules, can cause variability of power production. Therefore, the analysis of all the variability sources in order to provide statistically consistent power production data is an important challenge. This study presents a methodology to analyze data from a PV plant in order to have an independent ev…