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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
151

Autonomous Sensor System for Self-Monitoring of Training in Shooting Sport

Parthasarathy, Sindhu January 2017 (has links)
The factor of precision has always been the mastermind of the shooting sport. With new shooters coming into the field every day and with more aspiring shooters bringing laurels, a help of technology for training can make a difference. When advanced systems like the SCATT, Electronic Target Systems, etc. are marked for the people of the higher background, an easy handle autonomous system for self-monitoring training of precision improvement has always been a question of far reach. This project is about developing an external removable device, which will monitor and evaluate the shooter efficiency of gripping weapon, measure by pressure given at the contact points of the weapon. In the contact points, such as the trigger, the hand grip, cheek rest, butt plate and the hand rest; we use force sensitive resistors, which are connected to an automatic monitoring system built over an Arduino platform. The system analyses the shots based on the variation in the pressure at each point of contact for every shot. By further analysis and consolidation, the average pressure over a range of shots, an optimal pressure point can be fixed individually for the respective shooter. This pressure points are used as references, by rating them in comparison with the corresponding shot acquired in the target. The system includes a pre-designed training program, which autonomously monitors and trains the shooter to achieve the optimum grip in every shot, thereby increasing the accuracy and precision in a sequence of shots. With time, it helps the body to develop a muscle memory based on controlled training and learn the rhythm of applying optimum pressure to achieve better results. / <p>Noted the puBlication content is patented.</p>
152

Samspelet mellan ekologi, produktionsförhållande, politik och sociokulturella faktorer gällande Östersjöns torskbestånd från 1970-talet till 2003 / The interaction between ecology, state of production, politic and sociocultural factors applicated on the codpopulation in the Baltic Sea from 1970: s to 2003

Peterson, Therése January 2004 (has links)
The study begins with a historical background over the fisheries development in North America and in the Baltic Sea area in Finland and Sweden. As we can see the fisheries development depends on the interaction between ecology, state of production, politic and also social factors. In Sweden the fishery politic has changed over the period of the study. In the 1970: s the main politic focus was on the fisheries progress, expansion and rationalization. The State in Sweden took a vast part in this development and gave economic support. In the 1980: s the fishery politic in Sweden started to change and the environmental politics began to enter the fishery politic. The environmental problems in the Baltic Sea were given attention and it was a great anxiety over the eutrophication. In the 1980: s the codpopulation declined and with them the catches declined. The conflict over the White zone 1978-1988 between Former Soviet Union and Sweden resulted in a plunder fishery in the area east of Bornholm. This plunder fishery effected the cod population enormous and the effect has continued to the late 1990: s. In 1995 Sweden joined the European Union and the common fishery politic replaced the Swedish fishery politic. The system with TAC (Total Allowable Catch) is central in the common politic and it is used to control the cod catches. But the problem is that the TAC -volume has been higher than the codpopulation could stand. Despite the politic goal in Sweden and EU to preserve the codpopulation in the Baltic Sea, the codpopulation has continued to decline. The reason to this politic failure is that the limit of the ecology has been overseen. Instead, the economic and social values have been dominating the politic and together with a to weak control of the catches and environmental problems in the Baltic Sea, the situation for the cod has been devastating.
153

Veille technologique et intelligence économique en PME et TPE : réalités d'une approche nouvelle avec le Web 2.0

Diakhate, Djibril 04 November 2011 (has links)
Avec les mutations de l’internet induites par le développement des outils collaboratifs (blogs, flux RSS, réseaux sociaux, partage d’informations...) l'information change de nature. Sa production devient de plus en plus simple. L'utilisateur, qui depuis les débuts de l’internet grand-public, se contentait d’un rôle de consommateur tout-court d'informations s'est, petit-à-petit, transformé en « consommateur-producteur ». Il est au cœur du nouveau système de production et de diffusion de l’information. Ce changement qui s'opère dans toutes les couches sociales avec comme caractéristiques principales la floraison des blogs, la veille personnalisée, la customisation des outils, le partage, la collaboration dans les réseaux sociaux ..., s’identifie à travers les appellations « web 2.0 », « web social », « web collaboratif ». Plus que des mots, il s’agit de pratiques informationnelles qui mettraient en cause les acquis des entreprises en matière de veille et d'Intelligence Économique. Ainsi, l'intérêt de mesurer les tenants et les aboutissants de ce renouvellement des usages informationnels nous pousse à travers cette thèse à s’interroger sur leur impact réel ou supposé dans la veille et l'Intelligence Économique. Ce travail propose de mesurer le degré de récupération des compétences des utilisateurs du web 2.0 dans les démarches de veille et d’IE en PME et TPE. À l’issue d’une enquête de terrain portant sur un échantillon de 70 entreprises de différentes régions du monde (France, États-Unis, Grande-Bretagne, Maroc, Sénégal…) il a été intéressant de constater que le web 2.0 est assez bien connu dans les entreprises quelle que soit leur taille. Toutefois, la récupération de ses applications dans une démarche de veille et d’Intelligence Économique reste assez dispersée du fait, notamment, de la méconnaissance des potentialités de certains outils, qui a comme conséquence leur non prise en compte dans les politiques informationnelles. Ce résultat nous a convaincu de proposer aux TPE et aux PME une démarche de mise en place d’un dispositif de veille collaborative qui a l’originalité d’intégrer les outils du web 2.0. S’inscrivant dans la logique d’un dispositif de veille de seconde génération (Lietzelman et al.), la démarche proposée constitue une amélioration de celles déjà existantes (AFNOR, Paul Degoul). Elle prend en compte dans chacune des phases (conception, planification et mise en œuvre) la dimension sociale de l’internet et de ses pratiques. Un exposé de techniques d’exploitation de certains de ces outils pour un problème de veille a été produit afin de sensibiliser sur leurs potentialités dans l’éventualité de leur intégration dans un système de veille et d’intelligence économique / With the web as a platform and the development of collaborative tools (blogs, RSS feeds, social networking, information sharing ...) information is changing and its production becomes increasingly simple. The average user, who since the advent of the Internet has merely a short role as consumer of information, is transformed into a "consumer-producer" of information. He is at the heart of the new system of production and dissemination of information. This change whose characteristics cannot be ignored: blogs, personal monitoring, social bookmarking, personalization tools for research, collaboration in social networks etc. and known under the names "Web 2.0", "social web", "collaborative web" would undermine the achievements of companies in terms of information monitoring and Competitive Intelligence (CI); hence the importance of measuring the ins and outs of this renewal informational practices. In addition to questions about the real or supposed changes in information monitoring and Competitive Intelligence in the Age of social web, our research also wanted to measure the degree of recovery skills of web 2.0’s users in SMEs CI‘s systems. With a field survey covering a sample of 70 companies from different regions of the world (France, USA, Great Britain, Morocco, Senegal ...) we noticed that the Web 2.0 is fairly well known by companies regardless of their size, but the recovery of its applications in a process to monitor information is dispersed (using disparate, breach of certain tools potential, lack of information policy incorporating tools 2.0...). This result has convinced us to propose to the SME an approach of establishing a collaborative information monitoring system which has the originality to include the tools of Web 2.0 since the phases of design, planning and implementation. In order to respect the logic of a second generation Information Monitoring System (Lietzelman et al.), the proposed approach is an improvement of existing ones like the AFNOR system or that of Paul Degoul. It is accompanied, for sensitizing SME by a statement of operational techniques of some social media tools for their possible inclusion in a Competitive Intelligence System
154

RFID Emergency System for Tumble Detection of Solitary People

Ge, Quanyi, Chai, Yi January 2012 (has links)
RFID (Radio Frequency Identification) system is a wireless system without any kinds of mechanical or optical connection between identifying and detected objects. It consists of two basic devices: a reader and tag. Recently with the development of the technology, SAW-RFID (Surface Acoustic Wave Radio Frequency Identification) tags come into market with acceptable price, as well as its size tends to miniaturization. We propose to use 3D wireless indoor localization system to detect the position of the tags. The reader converts radio waves returned from the SAW-RFID tag into a form, which can be useful to process the information. The system consists of SAW-RFID tags placed on the object and several RF Readers in the room. The readers sequentially transmit the impulse signals which are then reflected from different tags and received by readers. Then a signal round-trip TOA (Time of Arrival) between tags and readers can be estimated. We define a 3D coordinate system of the readers and calculate the positions of the tags using suitable specific algorithm. Our system is design to monitor a human body position. The goal is to detect a tumble of solitary living people. A case when the tag positions are identified to be below a per-set threshold means that something happened, and maybe a man has fallen on the ground. This emergency situation can be detected by the monitoring system which then sends information to an alarm system which can call the health centre to take care of the patient. In this paper, a 5 m×5 m×3 m indoor localization system is implemented in Matlab. The simulation results show a correct identification of a fallen man and accuracy of the high measurement below 30 cm. / 0762770008
155

Surveillance des expositions alimentaires aux résidus de pesticides : développement d’une méthode globale d’appréciation quantitative du risque pour optimiser l’évaluation et la gestion du risque sanitaire / Monitoring of dietary exposure to pesticide residues : development of a method of quantitative risk assessment to optimize the evaluation and management of health risks

Nougadère, Alexandre 15 June 2015 (has links)
L'évaluation des produits phytopharmaceutiques, leur mise sur le marché et la surveillance des résidus de pesticides dans les aliments sont harmonisés au niveau européen. Les estimations des expositions alimentaires a posteriori réalisées en Europe sont cependant incomplètes au regard du nombre de denrées et de pesticides évalués, et les données de consommation utilisées sont souvent anciennes. L’amélioration des connaissances sur les risques alimentaires liés aux pesticides constitue l’un des enjeux majeurs de santé publique. L’objectif de cette thèse est de construire un système national de surveillance a posteriori des expositions et des risques alimentaires afin de guider (1) d’une part les gestionnaires du risque dans le cadre de l’élaboration de leurs programmes de surveillance et des mesures préventives et correctives ; (2) d’autre part les évaluateurs du risque dans l’orientation des travaux de recherche et d’expertise en métrologie, expologie et toxicologie. Ce système de surveillance comprend deux outils complémentaires : (1) une méthode d’appréciation quantitative du risque dite « globale » basée sur quatre indicateurs chroniques et aigus actualisés annuellement à partir des résultats des derniers plans de surveillance et des limites maximales de résidus ; (2) des études pluriannuelles dites études de l’alimentation totale (EAT) dont la première EAT française sur les pesticides. Ces deux approches sont basées sur les données de l’étude individuelle et nationale des consommations alimentaires Inca 2 de l’Anses. La méthode globale annuelle intègre une échelle de priorités ayant permis de hiérarchiser les risques pour 519 pesticides. Les niveaux d’exposition estimés dans l’EAT2 sont globalement plus réalistes que ceux issus de la méthode annuelle. Cependant, les deux outils n’ont pas permis initialement d’affiner suffisamment l’évaluation pour certains pesticides. Par conséquent, la méthode a été ajustée afin de mieux gérer les résultats d’analyse censurés. Après ajustement, 14% des pesticides sont identifiés comme prioritaires en termes d’évaluation et/ou de gestion du risque (niveaux 2 à 6), compte tenu de dépassements des valeurs toxicologiques de référence. A partir des couples prioritaires pesticide/denrée, un plan d’échantillonnage est défini pour les prochains plans de surveillance. Des mesures de gestion correctives et une intensification des contrôles à la production et à la distribution sont recommandés pour 11 pesticides de niveau de risque maximal (niveau 6) en lien avec 16 couples pesticide/denrée. Au final, ce système national est plus complet et plus adapté à la population française que l’évaluation communautaire annuelle. Les résultats obtenus sont par ailleurs cohérents avec ceux de la première étude nationale de biosurveillance sur les pesticides. Enfin, la méthode globale annuelle intégrera les évolutions méthodologiques communautaires récentes pour l’évaluation des risques cumulés. / The evaluation of plant protection products, their marketing and the monitoring of pesticide residues in food are harmonized in the European Union. Nevertheless, the assessment of dietary exposure at post-regulation level is incomplete due to the small number of foods and pesticides taken into account. In addition, consumption data are often obsolete. Improving knowledge on the dietary risk of pesticide residues is one of the major challenges to public health. The aim of this thesis is to build a national system for the ex post monitoring of dietary exposure and risk to the general population in order to guide (1) risk managers in the development of their monitoring programmes and preventive and corrective measures; (2) risk assessors in guiding research and expertise in metrology, exposure assessment and toxicology. This monitoring system includes two complementary tools: (1) an annual method of quantitative risk assessment based on four chronic and acute indicators updated each year and based on the results of the latest monitoring plans and maximum residue levels; (2) multi-year total diet studies (TDS), including the first TDS on pesticide residues (TDS2). These two approaches are based on the results of ANSES’s INCA2 individual and national consumption survey. This annual method includes a 6-level risk scale that enables the prioritization of risk for 519 pesticides. The exposure levels estimated in TDS2 are in general more realistic than those of the annual method. However, for certain pesticides it was not possible to sufficiently refine exposure levels using these two tools. Consequently, the annual method was adjusted to improve management of left-censored analytical results. After adjustment, 14% of pesticides were identified as a priority in terms of risk assessment and/or risk management (levels 2 to 6), given that they exceeded the toxicological reference values. Based on priority pesticide/foodstuff pairs, a sampling plan has been established for subsequent monitoring programmes. Corrective management measures and intensified controls of production and distribution are recommended for 11 pesticides scored at maximal risk level (level 6) in association with 16 pesticide/foodstuff pairs. In the end, this national system is more comprehensive and better suited to the French population than the annual EU assessment. The results are also consistent with those of the first national biomonitoring study on pesticides. The annual method will also incorporate recent European methodological developments for cumulative risk assessment.
156

Monitorovací systém kotelny / Monitoring system of boiler room

Navrátil, Marek January 2018 (has links)
Thisdiplomathesisdealswiththedesignofamonitoringsystemforsolidfuelboilers.The first describes the sensors most commonly used in boilers room including a description of the principle of operation. The main content of the thesis is the design of the own boiler monitoring system. First the appropriate structure of the entire system is selected followed by the detailed design of individual parts of the device electronic wiring and selection of suitable sensors. The result of the thesis is the basis for the production of the proposed device and created service program.
157

Optimalizace ethernetové sítě ve výrobním podniku / Optimization of Ethernet network in manufacturing plant

Kratochvíl, Petr January 2020 (has links)
This diploma thesis describes the work performed in the optimization of the corporate network in the company Alps Electric Czech to expand the amount of information obtained about the state of the network and thus improve the response of the IT department to potencial errors. During the optimization, a monitoring system was also deployed and its connection to the helpdesk and a tailor-made website running on the Flask microframework. With the gradual deployment, adjustments were made based on feedback from the IT department staff. Overall, the network has become more clarified, increasing the efficiency of maintenance and service.
158

Zajištění datové komunikace digitálních ochran a terminálů do monitorovacího systému jaderné elektrárny Dukovany / Design of The Data Communication Between Digital Protection Relays and Monitoring System of Dukovany Nuclear Power Plant

Šula, Vladimír January 2015 (has links)
This thesis describes the provision of the data communication of the new protection relays via 6 kV switch gears to the electro monitoring system at the Dukovany Nuclear Power Station. These protection relays will replace the current analog protection. The replacement process will start in 2015 and will finish in 2018. Given the overall complexity of the project, this thesis deals only with the following 6 kV switch gears 9BB and 9BD. The thesis is divided into a theoretical and a practical part. The theoretical part concerns the actual consumption and output of the Dukovany Nuclear Power Station. The following chapters describe the electro monitoring system and GRAF and LOGA software programs that are closely connected with it and that were used in the practical part. The last chapter of the theoretical part deals with the actual replacement of the protection relays of the 6 kV switch gears. Also, it describes a new optical network, which will be set up at the Dukovany Nuclear Power Station as a part of the process of replacement. The segment of the practical part concerns laboratory verification of the data communication of the new protection relays. Next, it describes actions that had to be taken in order to ensure and verify correct functionality of the data communication. This part is followed up by a closely related practical activity, which describes examination and verification of the protection functions of each of the 9BB and 9BD switch gears protection relays.
159

Návrh elektroniky autonomního monitorovacího systému / Design of autonomous monitoring system elektronics

Heger, Krištof January 2015 (has links)
This master’s thesis deals with the design of autonomous monitoring system electronics which will be used for diagnostics of the electromagnetic vibration generator developed at Brno University of Technology. This generator should be used in a practical application where frequent mechanical shocks are present, for example in vehicle or goods transportation. For such an application, the goal of the monitoring system is to find out whether generator is capable of producing enough electrical energy for smooth operation of wireless sensors used in similar applications. The first part of the thesis consists of the autonomous diagnostics system overview from both commercial and scientific spheres, brief description of the vibration generator used and also a summary of commercially available power management electronics. The next chapters present the detailed description of each functional element of energy harvesting system, the simulation of generator’s behaviour for optimal load in three different model applications and the most important part – design of the autonomous monitoring system. In the end, achieved results are evaluated and it is considered whether the shock-driven generator is suitable for use in a given application.
160

Využití elektrických vlastností kompozitních materiálů s modifikovanou cementovou matricí / The use of Electrical Properties of Composites with Modified Cement Matrix

Macháň, Ladislav January 2015 (has links)
The dissertation thesis is focused on practical use of composite material with modified cement matrix. Especially the area of electrical behavior of composite materials in use has been examined, for strain sensing material. The experimental part solves the problematics of corrosion of carbon and metallic materials in alkaline environment of the cement matrix. The physical design of the sensor and its fabrication using functional composite cement material have been described here. The thesis has also discussed defining the influence of temperature change and humidity change on the change of electrical parameters of integrated sensors. An important part of the thesis is the area of evaluating a series of measurements of electrical parameters under dynamic loading. The thesis analyzes designed measurement method in detail, being suitable to determine electrical properties of cement composite materials including the construction of a monitoring system that enables practical application of sensors in complex structures.

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