Log in

Relevant bibliographies by topics / Monitoring Sag and Tension / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Monitoring Sag and Tension.

Dissertations / Theses on the topic 'Monitoring Sag and Tension'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 44 dissertations / theses for your research on the topic 'Monitoring Sag and Tension.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Oubrahim, Zakarya. "On electric grid power quality monitoring using parametric signal processing techniques." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0102/document.

Full text

Abstract:

Cette thèse porte sur la surveillance des perturbations de la qualité de l’énergie d’un réseau électrique via des techniques paramétriques de traitement du signal. Pour élaborer nos algorithmes de traitement du signal, nous avons traité les problèmes d’estimation des différentes grandeurs du réseau électrique triphasé et de classification des perturbations de la qualité d'énergie. Pour ce qui est du problème d’estimation, nous avons développé une technique statistique basée sur le maximum de vraisemblance. La technique proposée exploite la nature multidimensionnelle des signaux électriques. El

APA, Harvard, Vancouver, ISO, and other styles

2

Gaikwad, Anish Madhukar. "Development of a sag monitoring instrument based on an embedded system platform." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-04032002-105918.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Lindberg, Elisabeth. "The overhead line sag dependence on weather parameters and line current." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-168528.

Full text

Abstract:

As the demand for energy increases, as well as the demand for renewable energy, Vattenfall, as network owner, receives many requests to connect new wind power to the grid. The limiting factor for how much wind power that can be connected to the grid is in this case the maximum current capacity of the overhead lines that is based on a line temperature limit. The temperature limit is set to ensure a safety distance between the lines and the ground. This master thesis project is a part of a research project at Vattenfall Research and Development that is examining the possibilities of increasing t

APA, Harvard, Vancouver, ISO, and other styles

4

Cruz, Harnoldo Castro. "INVESTIGAÇÃO CRÍTICA DA QUALIDADE DA ENERGIA ELÉTRICA DISPONÍVEL NA SUBESTAÇÃO DO CENTRO DE LANÇAMENTO DE ALCÂNTARA." Universidade Federal do Maranhão, 2012. http://tedebc.ufma.br:8080/jspui/handle/tede/496.

Full text

Abstract:

Made available in DSpace on 2016-08-17T14:53:23Z (GMT). No. of bitstreams: 1 Dissertacao Harnoldo Castro.pdf: 2052364 bytes, checksum: 3ff44ce616ef2f1e748c29067008a2d1 (MD5) Previous issue date: 2012-12-14<br>This work investigates electromagnetic disturbances that affect the power quality of the Alcântara Launch Center (CLA), supplied by the local power distribution utility company and the self-generation of the Center, emphasizing disturbances for sensitivity of electrical ground support equipment, variations in voltage and short-term transients. From a bibliographical study, the main el

APA, Harvard, Vancouver, ISO, and other styles

5

Sridhar, Dheerendra M. "Mathematical Modeling of Cable Sag, Kinematics, Statics, and Optimization of a Cable Robot." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1439416734.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ariga, Michiaki, Yoshikazu Yano, Shinji Doki, and Shigeru Okuma. "Mental Tension Detection in the Speech based on physiological monitoring." IEEE, 2007. http://hdl.handle.net/2237/9466.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Le, Thi Minh Chau. "Couplage onduleurs photovoltaïques et réseau, aspects contrôle / commande et rejet de perturbations." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT010/document.

Full text

Abstract:

Cette thèse concerne le couplage des systèmes photovoltaïques (PV) au réseau de distribution du point de vue contrôle/commande et rejet de perturbation. Le raccordement au réseau induit des couplages aux effets parfois indésirables. Le problème majeur est dû aux creux de tension provoqué par des court-circuits, à la foudre ou encore à certaines manœuvres. Dans ce contexte, des déconnexions apparaissent et parfois sont non-jutifiées, tout particulièrement en cas de défaut sur un départ adjacent BT/HTA; en cas d'un fort taux de pénétration de systèmes PV, une telle déconnexion qui serait général

APA, Harvard, Vancouver, ISO, and other styles

8

Kobaner, Can. "Economic Analysis of using MEMS technology for monitoring warp tension and breaks in weaving." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-20011219-112140.

Full text

Abstract:

<p>Micro-electro-mechanical-systems (MEMS) comprise a range of technologies that enable the fabrication of micron-sized, solid state devices such as sensors and actuators. MEMS manufacturing technologies enable the development of many exciting micro-scale or micro miniaturized products. This paper presents a decision model for evaluating the potential cost/benefit of different applications of MEMS for textiles. The objective is to determine the feasibility of replacing current warp tension measurement methods with MEMS. In order to accomplish this goal, a literature survey was conducted to doc

APA, Harvard, Vancouver, ISO, and other styles

9

Van, Wijk Heinrich. "Validation of the deck behaviour due to post-tension loading of Ashton arch bridge." Master's thesis, Faculty of Engineering and the Built Environment, 2019. https://hdl.handle.net/11427/31783.

Full text

Abstract:

The new Ashton Bridge is a concrete tied-arch structure with a cable-supported deck, which spans 110 metres below the arching ribs. The tie-beam members, connecting the arch ribs, each have six longitudinal tendons that have primarily straight profiles. The author set out to validate the structural behaviour of the tie-beams, after the post-tensioning construction stage. This objective was achieved by validating selected finite element model parameters with field conducted tests. The input parameter, which is the prestress loading onto the structure, was validated with tendon elongation measur

APA, Harvard, Vancouver, ISO, and other styles

10

DI, STASIO Leonardo. "Voltage Sags (Dips) Measured in Real Interconnected Systems: Methods and Tools to Detect their Origin, and to Forecast Future Performance." Doctoral thesis, Università degli studi di Cassino, 2022. https://hdl.handle.net/11580/90839.

Full text

Abstract:

The availability of data measured in the field is one of the greatest advances in the last decades for electric power systems planning, management and control. The technological innovations of systems and devices for the measurement of a wide range of quantities allowed their installation at almost all levels of voltages, from distribution to transmission. Increasing number of proposals of new techniques are coming from researchers and system operators for facing the various problems of system operation relying on the availability of measured data in real systems. The data from the field enabl

APA, Harvard, Vancouver, ISO, and other styles

11

Gahide, Severine Francoise. "Exploration of Micromachines to Textiles: Monitoring Warp Tension and Breaks during the Formation of Woven Fabrics." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010514-171836.

Full text

Abstract:

<p>MicroElectroMechanical Systems, or MEMS, is an emerging high technology that has proven to be very successful in several industries such as medical, automotive and ink jet industries. The technology philosophy is to integrate sensors, actuators and electronics onto a silicon substrate (polysilicon batch) to form as small as a square millimeter micromachine at low manufacturing cost. Such advantages prompted investigating the potential applications of MEMS in textiles.Initially, we identified possible applications of MEMS technology in spinning, weaving, knitting, fiber formation, nonwovens,

APA, Harvard, Vancouver, ISO, and other styles

12

Martinez, Garcia Jairo Andres. "A Novel Ultrasonic Method to Quantify Bolt Tension." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4145.

Full text

Abstract:

The threaded fasteners are one of the most versatile methods for assembly of structural components. For example, in bridges large bolts are used to fix base columns and small bolts are used to support access ladders. Naturally not all bolts are critical for the operation of the structure. Fasteners loaded with small forces and present in large quantities do not receive the same treatment as the critical bolts. Typical maintenance operations such tension measurements, internal stress checking or monitoring of crack development are not practical due to cost and time constrains. Although failure

APA, Harvard, Vancouver, ISO, and other styles

13

Haji, Agha Mohammad Zarbaf Seyed Ehsan. "Vibration-based Cable Tension Estimation in Cable-Stayed Bridges." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535636861655531.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

CAUCHIE, VANDECASTEELE CATHERINE. "Correlations entre les donnees du monitoring de la tension arterielle et de l'echocardiogramme : a propos de 64 patients." Lille 2, 1988. http://www.theses.fr/1988LIL2M109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Komaragiri, Shalini Sushmitha. "A SAG monitoring device based on a cluster of code-based GPS receivers : a thesis presented to the faculty of the Graduate School, Tennessee Technological University /." Click to access online, 2009. http://proquest.umi.com/pqdweb?index=0&did=2000377771&SrchMode=1&sid=2&Fmt=6&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1277472835&clientId=28564.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Mologni, Omar. "Cable tensile force monitoring in steep slope forest operations." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3426820.

Full text

Abstract:

The interest in active sustainable management of mountain forests is increasing around the world. Great effort, in particular, is focusing on the identification of efficient, safe, and sustainable steep slope harvesting solutions adapted to different environmental conditions. The main attention is moving toward winch-assist harvesting systems on trafficable terrain and European designed standing skyline mobile tower yarders on non-trafficable terrain. These cable-supported harvesting solutions have similar safety issues related to the use of tensioned wire ropes and the use of natural anchors.

APA, Harvard, Vancouver, ISO, and other styles

17

Löbler, Carlos Alberto. "AVALIAÇÃO QUANTITATIVA DA RECARGA DAS ÁGUAS SUBTERRÂNEAS NA BACIA ESCOLA DO CAMPUS DA UFSM." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/7644.

Full text

Abstract:

Fundação de Amparo a Pesquisa no Estado do Rio Grande do Sul<br>The Campus of UFSM (Universidade Federal de Santa Maria) is supplied mainly by groundwater, captured at outcrop zones (ZA) of the Guarani Aquifer System (GAS). In this sense, the present study aimed to fill the lack of quantitative information of groundwater in the UFSM Basin Campus School. The aims of this study were: 1) Perform recharge estimation of water table in single-well, using the Water Table Fluctuation method. 2) Execute statistical analysis on weekly data levels, monitored since May 2010, identifying possible correlati

APA, Harvard, Vancouver, ISO, and other styles

18

Malmqvist, Philip. "Monitoring of crack growth and crack mouth opening displacement in compact tension specimens at high temperatures : Development and implementation of the Direct Current Potential Drop (DCPD) method." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-44493.

Full text

Abstract:

The mechanical engineering department at the University of Idaho is conducting a project with the purpose of developing a complete system for investigating creep-, creep-fatigue- and fatigue properties of metallic materials at elevated temperatures up to 650 ˚C with Compact Tension (CT) specimens. Considerable efforts have been made to study and understand these phenomena, although numerous problems still exist. It is important to explore more extensively the complicated phenomena of creep, fatigue and of creep-fatigue interactions. The Direct Current Potential Drop (DCPD) method is a common m

APA, Harvard, Vancouver, ISO, and other styles

19

Davies, David James. "Cerebral near infra-red spectroscopy in traumatic brain injury as a potential independent monitoring modality and alternative to invasive tissue oxygen tension sensors." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7325/.

Full text

Abstract:

Background: Traumatic brain injury (TBI) is pathology of growing international importance. Near Infrared spectroscopy (NIRS) represents a non-invasive, cost effective and easily applies cerebral tissue monitoring modality with the potential to direct therapy and guide management decisions. Currently the use of this technology within mainstream TBI care is limited considering its potential inherent advantages. Recent advances in NIRS parameter recovery techniques and data processing potentially offer an improvement on previously evaluated technology. Frequency domain (FD) parameter recovery NIR

APA, Harvard, Vancouver, ISO, and other styles

20

Veizaga, Arevalo Maria. "Automation of power quality diagnosis of industrial electrical grids." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPAST158.

Full text

Abstract:

L'analyse de la qualité de l'électricité est une demande qui s'est vue augmentée au cours des dernières décennies. Les creux de tension sont les perturbations les plus fréquentes et les plus impactantes dans les réseaux électriques industriels, entraînant des pertes financières importantes pour les clients industriels. Le cœur de ce travail de thèse est dédié à la classification des causes de creux de tension ainsi qu'à leur localisation relative par rapport au point de mesure principale. L'algorithme développé utilise les formes d'onde de tension et de courant comme entrées pour identifier le

APA, Harvard, Vancouver, ISO, and other styles

21

Chaves, Adilson de. "MONITORAMENTO DE ÁGUAS SUBTERRÂNEAS EM UM EMPREENDIMENTO POTENCIALMENTE POLUIDOR NO MUNICÍPIO DE SANTA MARIA/ RS." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/7714.

Full text

Abstract:

Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Growndwater consist of strategic resources essential for public and private water supply. Therefore, the aquifer research by means of groundwater monitoring has been considered very important. In groundwater polluted potential enterprises, a system of monitoring is necessary, because it can not only allow contamination evidences previously, but also provide reference measures in order to portray the aquifer s hydrochemistry and hydrodynamics. The purpose of this study is to establish natural values and temporal variation frequenc

APA, Harvard, Vancouver, ISO, and other styles

22

Saligane, Mehdi. "Adaptive body biasing system for margins reduction using delay and temperature monitoring at near threshold operation." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4716.

Full text

Abstract:

La conception de circuit à très faible tension d'alimentation est un moyen depuis longtemps connu pour diminuer la consommation d'énergie des circuits pour un même service rendu [VITTOZ weak inversion]. La faible tension permet de gagner à la fois en courant de fuite [K ROY leakage] et surtout en courant dynamique qui reste la partie de l'énergie consommée la plus ardue a maîtriser. Elle s'accompagne d'un délai multiplié par plusieurs ordres de grandeur et une sensibilité accrue aux variations de paramètres des dispositifs. Cette variation étant plus grande dans les technologies récentes, la c

APA, Harvard, Vancouver, ISO, and other styles

23

Marchal, Alexandre. "Étude et conception d’un nouveau système intégré à une plateforme de monitoring pour la détection des décharges partielles en UHF pour les équipements électriques." Thesis, Université Côte d'Azur (ComUE), 2019. http://theses.univ-cotedazur.fr/2019AZUR4025.

Full text

Abstract:

La société SENSeOR a développé un système dédié à la surveillance de la température pour les équipements moyenne/haute tension afin d’éviter certaines pannes pouvant avoir des conséquences majeures sur le réseau d’énergie électrique. Cependant, des phénomènes autres que l’augmentation de la température sont aussi présents dans ces équipements à l’instar des décharges partielles (DP) dont la détection permettrait d’établir un diagnostic fiable et efficace de l’état de santé de l’appareil. C’est ce que propose le travail de recherche présenté. Pour cela, nous présenterons les caractéristiques d

APA, Harvard, Vancouver, ISO, and other styles

24

Phan, Anh Tuan. "Power Systems Model Developments for Power Qality Monitoring : Application to Fundamental Frequency and Unbalance Estimation." Thesis, Mulhouse, 2016. http://www.theses.fr/2016MULH8692/document.

Full text

Abstract:

Les énergies renouvelables, l’énergie sous la forme électrique et son transport à l’aide de réseaux électriques intelligents représentent aujourd’hui des enjeux majeurs car ils ont de grands impacts environnementaux et sociétaux. Ainsi, la production, le transport et la gestion de l’énergie électrique, continuent toujours à susciter un intérêt croissant. Pour atteindre ces objectifs, plusieurs verrous technologiques doivent être levés. Au-delà des questions liées aux architectures des réseaux électriques, aux modèles, aux outils de dimensionnement, à la formalisation de caractéristiques et d’i

APA, Harvard, Vancouver, ISO, and other styles

25

Ferreira, Wilson Seluque. "Utilização de extensômetro para monitoramento contínuo da tensão do detrusor. Estudo experimental em coelhos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17137/tde-29082016-144519/.

Full text

Abstract:

Introdução: O ato da micção é processo complexo que envolve o encéfalo, a medula espinhal, o sistema nervoso periférico e a integridade neuromuscular do trato urinário baixo. Essa integridade permite a ocorrência da fase de armazenamento de urina na bexiga e, a seguir, da fase de esvaziamento vesical. Havendo comprometimento das conexões entre esses componentes, tanto o enchimento quanto o esvaziamento vesical podem estar comprometidos. Conhecendo as propriedades do extensômetro elétrico de resistência, foi proposta a construção de um aparato com capacidade de avaliar a condição de enchimento

APA, Harvard, Vancouver, ISO, and other styles

26

Kadri, Farid. "Contribution à la conception d'un système d'aide à la décision pour la gestion de situations de tension au sein des systèmes hospitaliers. Application à un service d'urgence." Thesis, Valenciennes, 2014. http://www.theses.fr/2014VALE0028/document.

Full text

Abstract:

La prise en charge des flux des patients, en particulier les flux récurrents et consécutifs à des crises sanitaires (grippes, canicules, situations exceptionnelles) est l'un des problèmes les plus importants auquel les services des urgences (SU) doivent faire face. Pour gérer cet afflux de patients, les services des urgences nécessitent des ressources humaines et matérielles importantes, ainsi qu'un degré élevé de coordination entre ces ressources. Dans ces conditions, le personnel médical se voit confronté très fréquemment à des situations de tension qui compliquent très fortement sa tâche. L

APA, Harvard, Vancouver, ISO, and other styles

27

Cochet, Martin. "Energy efficiency optimization in 28 nm FD-SOI : circuit design for adaptive clocking and power-temperature aware digital SoCs." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4370.

Full text

Abstract:

L'efficacité énergétique est devenue une métrique clé de la performance des systèmes sur puce numériques, en particulier pour les applications tirant leur énergie de batteries ou de l'environnement. La miniaturisation technologique n'est plus suffisante pour atteindre les niveaux de consommation requis. Ce travail de recherche propose ainsi de nouvelles conceptions de circuits pour la génération d'horloge flexible, la mesure de puissance et de température ainsi que l'intégration de ces blocs au sein de systèmes sur puce complets.Le multiplieur de fréquence innovant en boucle ouverte proposé pe

APA, Harvard, Vancouver, ISO, and other styles

28

Moubdi, Nabila. "Méthodes de compensation des fluctuations des procédés de fabrication en vue d'ajustement des performances temporelles et énergétiques d'un système-sur-puce." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20096.

Full text

Abstract:

L'ère des technologies CMOS fortement submicroniques et des circuits à hautes performances temporelles et énergétiques exige la réduction de l'impact sur les circuits : de la fluctuation du procédé de fabrication (P), de la tension d'alimentation (V) et de la température (T). Il est donc nécessaire de mettre en place des capteurs ou ring oscillateurs sur puce dédiés à la qualification intrinsèque des circuits intégrés en termes de PVT. Les capteurs seront activés pendant la phase de test des circuits ou pendant leur phase de fonctionnement normal, et les mesures seront converties en données nu

APA, Harvard, Vancouver, ISO, and other styles

29

Cochet, Martin. "Energy efficiency optimization in 28 nm FD-SOI : circuit design for adaptive clocking and power-temperature aware digital SoCs." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4370.

Full text

Abstract:

L'efficacité énergétique est devenue une métrique clé de la performance des systèmes sur puce numériques, en particulier pour les applications tirant leur énergie de batteries ou de l'environnement. La miniaturisation technologique n'est plus suffisante pour atteindre les niveaux de consommation requis. Ce travail de recherche propose ainsi de nouvelles conceptions de circuits pour la génération d'horloge flexible, la mesure de puissance et de température ainsi que l'intégration de ces blocs au sein de systèmes sur puce complets.Le multiplieur de fréquence innovant en boucle ouverte proposé pe

APA, Harvard, Vancouver, ISO, and other styles

30

Abbas, Ghulam. "Analysis, modelling, design and implementation of fast-response digital controllers for high-frequency low-power switching converters." Thesis, Lyon, INSA, 2012. http://www.theses.fr/2012ISAL0055.

Full text

Abstract:

L'objectif de la thèse est de concevoir des compensateurs discrets qui permettent de compenser les non-linéarités introduites par les différents éléments dans la boucle de commande numérique, tout en maintenant des performances dynamiques élevées, des temps de développement rapide, et une structure reconfigurable. Ces compensateurs discrets doivent également avoir des temps de réponse rapide, avoir une déviation de la tension minimale et avoir, pour un étage de puissance donné, un temps de récupération rapide de la tension. Ces performances peuvent être atteintes par des compensateurs discrets

APA, Harvard, Vancouver, ISO, and other styles

31

Guedj, Annie. "Oxydation photo-assistee du silicium par laser au co2 continu et contribution a l'etude des couches de silice obtenues." Toulouse, INSA, 1987. http://www.theses.fr/1987ISAT0011.

Full text

Abstract:

Les caracteristiques de "l'oxyde laser" obtenu sont etudiees: 1)grace au controle de temperature par pyrometrie en ce qui concerne la cinetique de croissance. 2) a partir de mesures c(v) et i(v) en ce qui concerne les proprietes electriques. 3) par spectrometrie ir en ce qui concerne les proprietes physiques. Ces caracteristiques sont ensuite comparees a celles de l'oxyde thermique conventionnel. Enfin, par la realisation de transistors m. O. S. A "oxyde laser" (oxyde de grille), nous avons montre que ce mode d'oxydation assistee par laser peut etre utilise dans les technologies m. O. S.

APA, Harvard, Vancouver, ISO, and other styles

32

Li, Bo. "Conception et test de cellules de gestion d'énergie à commande numérique en technologies CMOS avancées." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00782429.

Full text

Abstract:

Les technologies avancées de semi-conducteur permettent de mettre en œuvre un contrôleur numérique dédié aux convertisseurs à découpage, de faible puissance et de fréquence de découpage élevée sur FPGA et ASIC. Cette thèse vise à proposer des contrôleurs numériques des performances élevées, de faible consommation énergétique et qui peuvent être implémentés facilement. En plus des contrôleurs numériques existants comme PID, RST, tri-mode et par mode de glissement, un nouveau contrôleur numérique (DDP) pour le convertisseur abaisseur de tension est proposé sur le principe de la commande prédicti

APA, Harvard, Vancouver, ISO, and other styles

33

Lopes, Daniel Alexandre Simões. "Indicadores para análise e caracterização da qualidade da energia da rede de distribuição." Master's thesis, 2017. http://hdl.handle.net/10316/82961.

Full text

Abstract:

Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>A qualidade de serviço engloba a continuidade de serviço, a qualidade da energia elétrica e os aspetos de comunicação com o cliente e a serviços prestados. Para a continuidade de serviço já existem muitos indicadores definidos que qualificam e permitem a comparação entre vários sistemas de energia elétrica. Em relação à qualidade de energia, apenas existem normas que estabelecem limites que a onda da tensão de alimentação deve possuir (European Norm EN 50160). As

APA, Harvard, Vancouver, ISO, and other styles

34

Chiu, Huan-Chieh, and 邱奐絜. "An IoT-based Sag Monitoring System for Overhead Transmission Lines." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/d8mx2v.

Full text

Abstract:

碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>106<br>For power companies around the world, transmission efficiency and power grid safety are two of the most important issues. The importance of the power grid safety goes without saying, after witnessing the impacts of a few power outages, such as the Northeast blackout of 2003, the 729 and 815 blackouts in Taiwan, and the 2012 India blackouts. The safety, efficiency and flexibility of high/extra-high voltage transmission lines can be improved by conducting real-time analyses on the parameters relating to the directly monitored transmission lines and their su

APA, Harvard, Vancouver, ISO, and other styles

35

Hu, Ming Hung, and 胡名宏. "FPGA Applications in Discrete Wavelet Transform and Real-Time Monitoring of Voltage Sag." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/33220935463715059189.

Full text

Abstract:

碩士<br>國立彰化師範大學<br>電機工程學系<br>97<br>With rapid development of technology, accurate equipment or operation of production line machine that worked for a long time, that power quality requirement for more stringent, and the interference event in the power quality monitoring have become relatively more important, therefore the analysis of power quality measurement and analysis necessary to be more efficient. The references in the power quality research, the digital signal processing methods for the use of discrete wavelet transform, and its analysis in a serial input signal to input the discrete wav

APA, Harvard, Vancouver, ISO, and other styles

36

Huang, Yu-Kai, and 黃昱剴. "An On-Line WSN-based Monitoring System for Transmission Line Sag of Power Grid." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/39278701076068734045.

Full text

Abstract:

碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>102<br>In recent years, the power transmission equipment around the world has suffered from severe accidents such as natural environmental disasters and vandalism, which cause a huge impact on the power supply of the whole country. Therefore, it is very important to ensure the safety of EHV (extra high voltage) transmission lines and electrical tower-related equipment. Traditional ways to monitor EHV transmission lines are to use human inspections, which are not efficient and cannot response to the events that occur on EHV transmission lines and electrical tower

APA, Harvard, Vancouver, ISO, and other styles

37

Tsai, Yi-Che, and 蔡宜哲. "Highly Sensitive Continuous Blood Pulse Wave Monitoring System with Tension Control." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/r6tnx9.

Full text

Abstract:

碩士<br>國立臺灣大學<br>機械工程學研究所<br>105<br>In this work, a tension controlled pulse wave sensing device for continuous blood pulse wave monitoring based on the tonometric method was presented. The pulse wave sensing device consists of a pressure sensor and a tension sensor installed on a strap. According to the tonometric method, the pressure sensor is placed on the skin above a radial artery by wrapping a strap around the wrist of a patient. The arterial pressure estimated by the pressure sensor. The tension of the strap could be measured by the tension sensor so that the preload of the pressure sens

APA, Harvard, Vancouver, ISO, and other styles

38

Musselman, Marcus William. "Improvement of belt tension monitoring in a belt-driven automated material handling system." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-08-1712.

Full text

Abstract:

The goal of the study presented in this thesis was the improvement of estimation and monitoring procedures for condition monitoring of belt tension and misalignment in belt-driven automated material handling systems widely used in modern semiconductor manufacturing systems. In pursuit of this goal, two 3-factor, 3-level experiments were designed to study how belt vibration characteristics depend on changes in belt length, belt tension, belt misalignment, and initial location of the excitation of belt vibration. Dependent variables in each of the experiments were drawn from a denoised frequen

APA, Harvard, Vancouver, ISO, and other styles

39

Chen, Yang-jhou, and 陳央洲. "Tension Loss Monitoring of Pre-stressed Tendon Based on Strain Measurements of Anchorage Head." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/38790767870363496604.

Full text

Abstract:

博士<br>國立雲林科技大學<br>營建工程系碩士班<br>100<br>In case of corrosion or low-quality construction the prestressed tendons inside structures could abnormally lose their tensions. If the abnormal loss beyond safety margin, it could cause structural cracks and then endanger the structure. Therefore, it has been an important topic how to monitor the tension loss of prestressed tendons. The objective of this study is to develop a method to monitor the tension loss of prestressed tendons, which is based on the strain measurement on anchor head. First, the finite element analysis is made to recognize the mag

APA, Harvard, Vancouver, ISO, and other styles

40

Pizarek, Thomas Frederick. "Improved lumped-parameter model for acoustic monitoring of tension in a timing belt used in automated material handling systems." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-4246.

Full text

Abstract:

Automated Material Handling Systems are practically ubiquitous across industry and many rely on the operation of timing belt drives, which require that the belt be tensioned properly in order to function correctly. A series of experiments was carried out in which the frequency spectrum of acoustic radiation caused by transverse vibrations of a timing belt was used to calculate the belt tension. A lumped-parameter model was developed that considers the geometric complexity of the timing belt's construction by calculating the stiffness of a single belt tooth using commercially-available finite

APA, Harvard, Vancouver, ISO, and other styles

41

Gahide, Severine. "Exploration of micromachines to textiles monitoring warp tension and breaks during the formation of woven fabrics /." 2001. http://www.lib.ncsu.edu/etd/public/etd-33171714410111331/etd.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Dionne, Kevin. "Conception d'un système RFID pour le monitoring de la tension des cellules d'une pile à combustible." Thèse, 2015. http://depot-e.uqtr.ca/7673/1/031014366.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

To, Gary. "Development of the Telemetrical Intraoperative Soft Tissue Tension Monitoring System in Total Knee Replacement with MEMS and ASIC Technologies." 2007. http://trace.tennessee.edu/utk_gradthes/231.

Full text

Abstract:

The alignment of the femoral and tibial components of the Total Knee Arthoplasty (TKA) is one of the most important factors to implant survivorship. Hence, numerous ligament balancing techniques and devices have been developed in order to accurately balance the knee intra-operatively. Spacer block, tensioner and tram adapter are instruments that allow surgeons to qualitatively balance the flexion and extension gaps during TKA. However, even with these instruments, the surgical procedure still relies on the skill and experience of the surgeon. The objective of this thesis is to develop a comput

APA, Harvard, Vancouver, ISO, and other styles

44

Feener, Jessica S. "Safeguards for Uranium Extraction (UREX) +1a Process." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-270.

Full text

Abstract:

As nuclear energy grows in the United States and around the world, the expansion of the nuclear fuel cycle is inevitable. All currently deployed commercial reprocessing plants are based on the Plutonium - Uranium Extraction (PUREX) process. However, this process is not implemented in the U.S. for a variety of reasons, one being that it is considered by some as a proliferation risk. The 2001 Nuclear Energy Policy report recommended that the U.S. "develop reprocessing and treatment technologies that are cleaner, more efficient, less waste-intensive, and more proliferation-resistant." The Uranium

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!