Search results for "PGA"
showing 10 items of 244 documents
Ceļu digitālās reklāmas radītā apgaismojuma novērtēšanas metodes analīze
2022
Maģistra darbs ir uzrakstīts latviešu valodā uz 41 lapaspusēm, satur 24 attēlus, 9 tabulas un 34 atsauces uz literatūras avotiem. Darba mērķis bija noteikt teorētisko diskomforta žilbšanu, pielietojot dažādas ceļu reklāmas radītā apgaismojuma novērtēšanas pieejas. Tika veikta 13 digitālo ceļa reklāmu baltās krāsas spožuma mērījumi izmantojot Konica Minolta LS-150 fotometru, un radītā apgaismojuma mērījum baltajai krāsai, izmantojot Konica Minolta T-10 luksometru. Tika noskaidrots, ka G. Krūmiņas izveidotās apgaismojuma novērtēšanas metodes iegūtajiem rezultātiem baltajai krāsai ir cieša korelācija ar standarta spožuma mērījumiem baltajai krāsai ar fotometru, tātad šī metode ir pietiekoši pr…
Brief an Garlieb H. Merkel
1798
Ms. 930a, Nr. 12, Bl. 31r-34v Johannes Daniel Falk. Brief an Garlieb H. Merkel, Weimar, den 3. December 179[8?] Autora rokraksts / Autograph, vācu val. / Deutsch [8] lpp. / S. Attēlu numuri / Bildnummern: 930a-012-1, 930a-012-2-3, 930a-012-4-5, 930a-012-6-7, 930a-012-8 Im vorliegenden Brief vermischen sich private und berufliche Angelegenheiten sowie Klatsch miteinander. Nachdem Falk seine lange Antwortzeit zunächst damit begründet, dass er Merkels aktuelle Adresse nicht kenne, bringt er Neuigkeiten von der Krankheit einer nicht näher benannten Kammerrätin und nimmt an deren Leiden rege Anteil. Direkt im Anschluss präsentiert Falk den Stand seiner Verhandlungen mit Verlegern. Auch wenn Falk…
A real-time non-intrusive FPGA-based drowsiness detection system
2011
Automotive has gained several benefits from the Ambient Intelligent researches involving the deployment of sensors and hardware devices into an intelligent environment surrounding people, meeting users’ requirements and anticipating their needs. One of the main topics in automotive is to anticipate driver needs and safety, in terms of preventing critical and dangerous events. Considering the high number of caused accidents, one of the most relevant dangerous events affecting driver and passengers safety is driver’s drowsiness and hypovigilance. This paper presents a low-intrusive, real-time driver’s drowsiness detection system for common vehicles. The proposed system exploits the ‘‘bright p…
A novel methodology for accelerating bitstream relocation in partially reconfigurable systems
2012
International audience; Xilinx Virtex FPGAs offer the possibility of Partial Reconfiguration (PR). Arbitrary tasks can be allocated and de-allocated onto FPGA without system interruption. However, mapping a task to any available PR region requires a unique partial bitstream for each partition, hence reducing memory storage requirements. In recent years, an interest on overcoming this problem has lead to the concept of Partial Bitstream Relocation (PBR). The principle is to perform bitstream modification to map it to different regions. However, PBR consumes scarce resources in hardware implementations, and introduces a prohibitive time overhead when done in software. In order to find the bes…
Darba vides riski strādājošiem veļas mazgātavā un preventīvie pasākumi
2015
Darba vides riski strādājošiem veļas mazgātavā un preventīvie pasākumi. Inese Agnese Dementjeva, darba zinātniskais vadītājs mg.darb.aizs., lektors Uldis Karlsons. Maģistra darbs, 76 lappuses, 7 attēli, 37 tabulas, 30 literatūras avoti, 3 pielikumi. Latviešu valodā. Darba gaitā veikta literatūras analīze par iespējamiem riskiem un to ietekmi uz strādājošiem sadzīves pakalpojumu nozarē - veļas mazgātavā. Maģistra darba mērķis sasniegts, novērtēti darba vides riski un sniegtas prakstiskās rekomendācijas to samazināšanai un novēršanai. Veikta ergonomisko risku analīze, izmantojot anketēšanu un darba vietas risku noteikšanas metodes. Izmantota slodzes galveno rādītāju (SGR-A smaguma celšana un …
Real-Time Localization of Epileptogenic Foci EEG Signals: An FPGA-Based Implementation
2020
The epileptogenic focus is a brain area that may be surgically removed to control of epileptic seizures. Locating it is an essential and crucial step prior to the surgical treatment. However, given the difficulty of determining the localization of this brain region responsible of the initial seizure discharge, many works have proposed machine learning methods for the automatic classification of focal and non-focal electroencephalographic (EEG) signals. These works use automatic classification as an analysis tool for helping neurosurgeons to identify focal areas off-line, out of surgery, during the processing of the huge amount of information collected during several days of patient monitori…
An Embedded Fingerprints Classification System based on Weightless Neural Networks
2009
Automatic fingerprint classification provides an important indexing scheme to facilitate efficient matching in large-scale fingerprint databases in Automatic Fingerprint Identification Systems (AFISs). The paper presents a new fast fingerprint classification module implementing on embedded Weightless Neural Network (RAM-based neural network). The proposed WNN architecture uses directional maps to classify fingerprint images in the five NIST classes (Left Loop, Right Loop, Whorl, Arch and Tented Arch) without anyone enhancement phase. Starting from the directional map, the WNN architecture computes the fingerprint classification rate. The proposed architecture is implemented on Celoxica RC20…
Experimental analysis with FPGA controller-based of MC PWM techniques for three-phase five level cascaded H-bridge for PV applications
2016
The FPGA represents a valid solution for the design of control systems for inverters adopted in the field of PV systems because of their high flexibility of use. This paper presents an experimental analysis of the MC SPWM techniques for a three-phase, five-level, cascaded H-Bridge inverter with FPGA controller-based. Several control algorithms are implemented by means of the VHDL programming language and the output voltage waveforms obtained from the main PWM techniques are compared in terms of THD%. Simulation and experimental results are analysed, compared and discussed.
Definition of Seismic Vulnerability Maps for Civil Protection Systems: The Case of Lampedusa Island
2016
The opportunity to locate and quantify the major criticalities associated to natural catastrophic events on a territory allows to plan adequate strategies and interventions by civil protection bodies involved in local and international emergencies. Seismic risk depends, most of all, on the vulnerability of buildings belonging to the urban areas. For this reason, the definition, by a deep analysis of the territory, of instruments identifying and locating vulnerability, largely favours the activities of institutions appointed to safeguard the safety of citizens. This paper proposes a procedure for the definition of vulnerability maps in terms of vulnerability indexes and critical peak ground …
Remote programming of network robots within the UJI Industrial Robotics Telelaboratory: FPGA vision and SNRP network protocol
2009
This paper presents the UJI Industrial Robotics Telelaboratory, which lets Ph.D. and Master’s degree students perform robotics and computer vision tele-experiments. By using this system, students are able to program experiments remotely via the Web, in order to combine the use of a field-programmable gate array (FPGA) to provide real-time vision processing, a conveyor belt, and a Motoman industrial manipulator. This paper introduces the novel SNRP protocol (i.e., Simple Network Robot Protocol), which permits the integration of network robots and sensors within an e-learning platform in a simple and reliable manner. As long as the students are able to interact remotely with a real robotic sc…