Search results for " PRIN"
showing 10 items of 1809 documents
Geometry and feedback classification of low-dimensional non-linear control systems
2006
The purpose of this thesis is the study of the local and global differential geometry of fully nonlinear smooth control systems on two-dimensional smooth manifolds. We are particularly interested in the feedback-invariants of such systems. In a first part we will use the Cartan's moving frame method in order to determine these invariants and we will see that one of the most important feedback-invariants is the control analogue to the Gaussian curvature of a surface. As we will explain it, the control curvature reveals very precious information on the optimal synthesis of time optimal problems. In a second part we will construct some microlocal normal forms for time optimal control systems a…
Functional interpretative approaches on shears at the end of the Iron Age and the beginning of the Roman Principate. The example of shears in the cem…
2011
Scheren werden häufig als multifunktionale Geräte aufgefasst, deren genauere Bestimmung schwer einzugrenzen ist. Jedoch geben deren Form und technische Eigenschaften über die vorgesehene Verwendung Aufschluss. Es ist also möglich, eine neue Gliederung dieser Objekte vorzunehmen, und zwar anhand der Funktion, die sie am besten zu erfüllen scheinen. Diese Einteilung der Scheren aus den Nekropolen der Treverer wird durch die jeweils begleitenden anderen Grabbeigaben verifiziert. Das Beispiel der Scheren aus den Gräbern der Treverer macht es zudem möglich, diese Stücke anhand der sonstigen Beigaben einerseits in die Technikgeschichte und andererseits in die Sozialgeschichte einzuordnen.
Identifying critical factors for implementing good agricultural practice
2009
En este artículo se presenta la identificación de los factores críticos (FC) que afectan la implantación de un programa de buenas prácticas agrícolas (BPA) en productores de café y frutas del departamento del Huila, en Colombia, mediante la realización de un análisis factorial exploratorio utilizando como método de factorización el análisis de componentes principales (ACP); las matrices de datos se construyeron con los resultados de la aplicación de sendos instrumentos con estructura definida en las dos poblaciones objeto de estudio, el instrumento Starbucks C.A.F.E. Practices -para pequeños caficultores en el caso de los productores de café- y EUREPGAP V2.1 Oct.2004 - Checklist-listado de …
The Role of 3D-Printed Custom-Made Vertebral Body Implants in the Treatment of Spinal Tumors: A Systematic Review
2022
In spinal surgery, 3D prothesis represents a useful instrument for spinal reconstruction after the removal of spinal tumors that require an “en bloc” resection. This represents a complex and demanding procedure, aiming to restore spinal length, alignment and weight-bearing capacity and to provide immediate stability. Thus, in this systematic review the authors searched the literature to investigate and discuss the advantages and limitations of using 3D-printed custom-made vertebral bodies in the treatment of spinal tumors. A systematic literature review was conducted following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement, with no limits in terms …
Darba samaksas tiesiskā regulējuma problēmas un to risinājumi Latvijas Republikas normatīvajos aktos
2019
Latvijas Republikas normatīvajos aktos noteikto normu piemērošanas jautājumi saistībā ar darba samaksu tiek skatīti ļoti bieži, bet vēl joprojām pastāv vairākas problēmas attiecībā uz darba samaksu. Tādēļ diplomdarba tēma ir „Darba samaksas tiesiskā regulējuma problēmas un to risinājumi Latvijas Republikas normatīvajos aktos”. Darba mērķis ir veikt izpēti darba samaksas jautājumos, pamatojoties uz Latvijas Republikas normatīvajiem aktiem un speciālo literatūru, lai sniegu priekšlikumus problēmu, kas attiecas uz darba samaksu, risināšanai normatīvajā regulējumā. Diplomdarba izstrādes rezultātā tika secināts, ka Darba likumā pastāv nevienlīdzība attiecībā uz darba algām, svētku dienām un ikga…
Eiropas Savienības tiesību aktu izstrāde atbilstoši daudzvalodu principam
2015
Bakalaura darba mērķis ir noskaidrot un analizēt kā daudzvalodu princips ietekmē Eiropas Savienības tiesību aktu izstrādi, to ieviešanu dalībvalstīs un spēkā esamību, ņemot vērā, ka šobrīd Eiropas Savienību jau veido 28 dalībvalstis, kurās ir 24 oficiālās valodas, kuras ir vienlīdzīgas, kā arī konstatēt problēmas un to risinājumus minēto tiesību aktu izstrādē un ieviešanā. Darba gaitā tika aplūkota daudzvalodu principa būtība, vēsturiskā izveide un juridiskie aspekti Eiropas Savienības kontekstā, ņemot vērā Eiropas Savienības izveides ideju visās tās darbības jomās, proti, ka Eiropas Savienība ir vienots veselums, kurā tiek ievērotas un cienītas tradīciju un valodu atšķirības, tostarp tas a…
I principi democratici nel diritto dell'Unione europea
2011
Il lavoro esamina possibili significati e funzioni delle norme in tema di principi democratici introdotte nel TUE dal Trattato di Lisbona. This book examines the articles referring to the democratic principles, which have been introduced in the TEU by theTreaty of Lisbon, and their possible meanings and functions in the EU legal system.
Propósitos y principios de la Organización de las Naciones Unidas
2023
Propósitos y principios de la Organización de las Naciones Unidas. Roderic. 1. Introducción. 2. Los propósitos de las Naciones Unidas. 3. Los principios de las Naciones Unidas. Purposes and Principles of the United Nations Organization. 1. Introduction. 2. The Purposes of the United Nations. 3. The Principles of the United Nations.
Brackish water off-grid desalination systems for developing countries
2017
The REvivED water project aims to contribute to overcoming the drinking water challenge through desalination technology. The goal is to produce safe and affordable drinking water with a significantly reduced energy consumption compared to the current state-of-the-art technology. The overall project comprises several systems and applications with twelve pilots in total, ranging from Electrodialysis (ED) small systems for brackish water desalination to larger scale hybrid (RED/ED-RO) systems for sea water desalination. Specific attention is devoted to develop energy efficient and robust brackish water desalination systems for application in developing countries. To reduce the energy consumpti…
Space and Time in Hybrid Teaching and Learning Environments : Two Cases and Design Principles
2022
The opportunities and challenges of teaching and learning in the same and different space and time have been discussed in the field of distance education for several decades. Within COVID-19, a new type of experimenting and research interest in so-called hybrid learning has emerged. In this article, we present the results from exploring “hybridity” from the perspective of classical categorizations of different forms of learning in terms of time and space. We explored the phenomenon through two cases with the same high-level strategic objective, serving hybrid interaction. In case A, we evaluated university library spaces renovated to serve hybrid teaching and learning. In case B, the focus …