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Autor: Grafiati
Data publikacji: 2 czerwca 2025
Data aktualizacji: 31 lipca 2025

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1

Sze, Ngok Man. "Switching converter techniques for energy harvesting applications /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?ECED%202007%20SZE.

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Li, Yang. "Simple techniques for piezoelectric energy harvesting optimization." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0077/document.

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La récupération d'énergie par élément piézoélectrique est une technique prometteuse pour les futurs systèmes électroniques nomades autoalimentés. L'objet de ce travail est d’analyser des approches simples et agiles d’optimisation de la puissance produite par un générateur piézoélectrique. D'abord le problème de l’optimisation de l’impédance de charge d’un générateur piézoélectrique sismique est posé. Une analyse du schéma équivalent global de ce générateur a été menée sur la base du schéma de Mason. Il est démontré que la puissance extraite avec une charge complexe adaptée puisse être constant
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Zhang, Guangcheng. "Smart energy harvesting utilizing flow-induced techniques." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/55206/.

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The flow-induced vibration is one of the most common vibrational phenomena in the ambient environment, on which the previous studies were mainly dealing with methodologies as to how to control and reduce vibrations of objects in the flow field. Facing the growing demand of the power supply of the Internet of Things (IoT) and the Wireless Sensor Network (WSN), the energy harvesting technique utilizing multifaceted dynamic effects incurred within natural water flows is a new and meaningful area worth of further research. In this thesis, two novel strategies of the flow-induced vibration energy h
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Rubio, López Javier. "Resource management techniques for sustainable networks with energy harvesting nodes." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/396309.

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his dissertation proposes novel techniques for assigning resources of wireless networks by considering that the coverage radii are small, implying that some power consumption sinks not considered so far shouldnow be introduced, and by considering that the devices are battery-powered terminals provided with energy harvesting capabilities. In this framework, two different configurations in terms of harvesting capabilities are considered. First, we assume that the energy source is external and not controllable, e.g. solar energy. In this context, the proposed design should adapt to the energy tha
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Proynov, Plamen. "Low-power techniques for power conditioning in electromagnetic energy harvesting." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682563.

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Practical vibration energy harvesting tends to be employed where the frequency of the vibration does not vary with time. This is a result of energy harvesting devices resonating at a specific frequency. If the frequency of the vibration changes even slightly from the harvester's natural resonant frequency, then the power generated drops off significantly. Various methods have been proposed to apply kinetic energy harvesting over wider frequency bands, for example by active mechanical tuning of the structure to the vibration, or by adjusting the electrical load. This thesis explores electronic
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Ngwepe, Mantlo Richard. "Evaluating rainwater harvesting and conservation techniques on the Towoomba/Arcadia Ecotope." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1407.

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Thesis (M.Sc.(Agronomy)) --University of Limpopo, 2015<br>The changes in climate, especially poor rainfall patterns and distributions are key issues posing major agricultural challenges for food security and threaten the rural livelihoods of many communities in the Limpopo Province. Rainfall (P) is low and limited. These limited P is mostly lost through runoff and evaporation, which result in low soil moisture availability and possible crop failure. Therefore, techniques that reduce these water losses are important for improving dryland crop production and rainwater productivity (RWP). T
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Farmer, Justin Ryan. "A comparison of power harvesting techniques and related energy storage issues." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33072.

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Power harvesting, energy harvesting, power scavenging, and energy scavenging are four terms commonly used to describe the process of extracting useful electrical energy from other ambient energy sources using special materials called transducers that have the ability to convert one form of energy into another. While the words power and energy have vastly different definitions, the terms â power harvestingâ and â energy harvestingâ are used interchangeably throughout much of the literature to describe the same process of extracting electrical energy from ambient sources. Even though mos
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Abdelmoaty, Ahmed A. "Circuit and System Techniques for Energy-Harvesting Platforms for Mobile Applications." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1481832223757049.

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Schuss, C. (Christian). "Measurement techniques and results aiding the design of photovoltaic energy harvesting systems." Doctoral thesis, Oulun yliopisto, 2017. http://urn.fi/urn:isbn:9789526215914.

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Abstract This thesis presents measuring techniques as well as measured and simulated results with the aim of helping the design of photovoltaic energy harvesting systems. Therefore, cost-effective measurement setups were developed for collecting the amount of irradiation, for both stationary and moving photovoltaic (PV) installations. The impact of the time resolution of solar radiation data on estimating the available solar energy was investigated. For moving PV installations, the dynamics and the rate of changes in the available irradiation were studied in order to analyse the effects on max
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Worthington, Emma. "Piezoelectric energy harvesting : enhancing power output by device optimisation and circuit techniques." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/4579.

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Energy harvesting; that is, harvesting small amounts of energy from environmental sources such as solar, air flow or vibrations using small-scale (≈1cm 3 ) devices, offers the prospect of powering portable electronic devices such as GPS receivers and mobile phones, and sensing devices used in remote applications: wireless sensor nodes, without the use of batteries. Numerous studies have shown that power densities of energy harvesting devices can be hundreds of µW; however the literature also reveals that power requirements of many electronic devices are in the mW range. Therefore, a key challe
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11

Zhao, Ping [Verfasser], Manfred [Akademischer Betreuer] Glesner, and Thilo [Akademischer Betreuer] Bein. "Energy Harvesting Techniques for Autonomous WSNs/RFID with a Focus on RF Energy Harvesting / Ping Zhao. Betreuer: Manfred Glesner ; Thilo Bein." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106117824/34.

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12

Fawaz, Ibrahim. "Offloading strategies for mobile terminals with energy harvesting capabilities." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT040.

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Aujourd’hui, les communications mobiles sans fil sont en pleine croissance, en raison du grand nombre d’appareils connectés, ce qui augmente considérablement la demande de gros volumes de données, nécessitant des calculs intensifs et entraînant une forte consommation d’énergie. Toutefois, cette expansion des services sans fil est encore entravée par les limitations des terminaux mobiles, en termes de capacité de traitement, de stockage et d’énergie. Récemment, le Mobile Edge Computing (MEC) et la récupération d’énergie (EH) ont été proposés comme des technologies prometteuses pour prolonger la
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Glöde, Dan. "Final cutting of shelterwood : harvesting techniques and effects on the Picea abies regeneration /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6063-8.pdf.

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Gutiérrez, Martínez Raquel. "Microalgae harvesting in wastewater treatment plants : application of natural techniques for an efficient flocculation." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/380036.

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Research of new sources of bioenergy is nowadays driving attention to microalgae. Cost-effective biomass harvesting poses a challenge for full-scale microalgae production for biofuels. In the context of wastewater treatment with microalgae cultures, coagulation-flocculation followed by sedimentation seems to be the most suitable option for microalgae harvesting as low energy and no extra materials are required. The main objective if this PhD thesis was to evaluate and improve the harvesting efficiency of microalgal biomass grown in wastewater treatment high rate algal ponds (HRAPs) by means
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15

Chambers, Samuel David. "Application of Spectral Change Detection Techniques to Identify Forest Harvesting Using Landsat TM Data." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34306.

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The main objective of this study was to determine the spectral change technique best suited to detect complete forest harvests (clearcuts) in the Southern United States. In the pursuit of this objective eight existing change detection techniques were quantitatively evaluated and a hybrid method was also developed. Secondary objectives were to determine the impact of atmospheric corrections applied before the change detection, and the affect post-processing methods to eliminate small groups of misclassified pixels ("salt and pepper" effect) had on accuracy. <p> Landsat TM imagery of Louisa C
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16

Shao, Hui. "System design and power management for ultra low energy applications using energy harvesting techniques /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?ECED%202009%20SHAO.

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17

Gavrilovic, Nikola. "Endurance improvement of mini UAVs through energy harvesting from atmospheric gusts." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0024/document.

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Cette thèse a pour but de découvrir la faisabilité et le potentiel de la récupération d'énergie à partir de rafales atmosphériques pour les micro et mini véhicules aériens sans pilote. L'atmosphère sert de grande source d'énergie pouvant être récoltée afin d'accroître la performance des petits UAV sous la forme d'une autonomie et d'une autonomie étendues. Il est bien connu que de nombreuses espèces d'oiseaux utilisent diverses techniques de vol pour obtenir des performances de vol étonnantes. Compte tenu du fait que les véhicules susmentionnés partagent la taille et la vitesse de vol avec des
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DELVECCHIO, Simone. "ADVANCED VIBRATION PROCESSING TECHNIQUES FOR CONDITION MONITORING AND QUALITY CONTROL IN I.C. ENGINES AND HARVESTING MACHINES." Doctoral thesis, Università degli studi di Ferrara, 2009. http://hdl.handle.net/11392/2388714.

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The topic of this thesis is the development and the implementation of advanced vibration processing techniques for machine condition monitoring and diagnostics with two fields of applications: the quality control of I.C. engines by means of cold tests, and the monitoring and control of harvesting processes. The cold test, i.e. the final test after the assembly line and before shipping the engine to the customer, consists of the final quality control of the engine in a non-combustion state. Techniques for engine condition monitoring based on the analysis of vibration signals are widely
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Manganyi, Ntsamatiko Josephina. "Evaluation of Challenge Programme Water for Food techniques / technologies on smallholder dryland farming in Greater Giyani Municipality in Limpopo Province." Thesis, University of Limpopo (Turfloop Campus), 2011. http://hdl.handle.net/10386/643.

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Thesis (M.Dev.) --University of Limpopo, 2011<br>Food security in most drought-stricken areas of Limpopo Province is a challenge to the Department of Agriculture and to all the people living in the province, especially to the resource poor smallholder farmers. Finding remedial solutions to agricultural production in stress prone conditions is therefore a high priority. The introduction of Challenge Programme Water for Food (CPWF) technologies/techniques to smallholder dry land farming in Greater Giyani Municipality was seen as one of the solutions. However, there are constraints raised by CPWF
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20

Elsabae, Ramadan G. M. "Optimization techniques for reliable data communication in multi-antenna wireless systems." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/34613.

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This thesis looks at new methods of achieving reliable data communication in wireless communication systems using different antenna transmission optimization methods. In particular, the problems of exploitation of MIMO communication channel diversity, secure downlink beamforming techniques, adaptive beamforming techniques, resource allocation methods, simultaneous power and information transfer and energy harvesting within the context of multi-antenna wireless systems are addressed.
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Mohtashami, Sima. "Planning forest routes for silvicultural activities using GIS based techniques: A case study of Selesjö in Östergötland, Sweden." Thesis, KTH, Miljöbedömning och -förvaltning, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-95423.

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Forests are natural resources that provide essential services for different groups of users from human beings to native habitats. They are actually home of diverse range of biological groups; contribute to alleviate climate change through sinking carbon-dioxide from the atmosphere and supplying oxygen back to it and finally they are regarded as wood resources by human beings. In recent decades, exploitation of forest woods, specifically by application of operational machineries, has exerted severe pressure on basic elements of forests, such as soil and water. Massive weights of harvesters and
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Al-Benna, Sammy. "The effect of harvesting techniques and cardiovascular risk factors on endothelial function of human coronary artery bypass grafts." Thesis, University of Glasgow, 2007. http://theses.gla.ac.uk/38956/.

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Endothelial dysfunction is a common pathophysiological feature which develops in the evolution of cardiovascular diseases. Strategies to maintain a healthy endothelium or to reverse endothelial dysfunction are crucial for the normal function of the cardiovascular system and the maintenance of cardiovascular health. Endothelial dysfunction is observed both in the coronary and peripheral vasculature. Studies have demonstrated that surgical preparation of coronary artery bypass grafts can cause endothelial dysfunction and influence the viability and patency of these grafts. An important considera
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Korla, Srikanth. "Inspection of Parts with Complex Geometry and Welds with Structural Health Monitoring Techniques." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/460.

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Structural Health Monitoring (SHM) systems were developed to evaluate the integrity of a system during operation, and to quickly identify the maintenance problems. They will be used in future aerospace vehicles to improve safety, reduce cost and minimize the maintenance time of a system. Many SHM systems were already developed to evaluate the integrity of plates and used in marine structures. Their implementation in manufacturing processes is still expected. The application of SHM methods for complex geometries and welds are two important challenges in this area of research. This research work
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Coronel-Banda, Mauricio Enrique. "Mucosal perforators and mucosal perforasomes from the facial artery. Posible clinical uses and refinements in the harvesting perfofator flap techniques." Doctoral thesis, Universitat Internacional de Catalunya, 2016. http://hdl.handle.net/10803/386465.

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BACKGROUND: Neither the oral mucosal perforators of the facial artery, nor their mucosal perforasomes they perfused, have been described. Septal perforation is a frequent complication of snorting cocaine. Its reconstruction usually requires complex procedures based on oral mucosa o distant flaps. METHODS: We studied 30 facial arteries. First ten were injected with latex, diameter and length were measured. All perforators extending from the facial artery and heading directly to the oral mucosa were selected. The remaining twenty arteries were dissected. Perforators larger than 0.5 mm were s
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Schwenke, Sherri Kay. "A comparison of computer simulation techniques in depicting and communicating the visual impacts of timber harvesting in the Jefferson National Forest." Thesis, Virginia Polytechnic Institute and State University, 1994. http://hdl.handle.net/10919/94511.

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Advances in computer technology have made it possible for designers to manipulate realistic images on a computer screen. Previously, most computer generated images consisted of line drawings or distorted grid perspectives. A program known as PC/NewPerspectives, which generated distorted grid perspectives, has been in use by US Forest Service Landscape Architects who use it to determine the visual impact of a proposed harvest unit and manipulate the layout to reduce the impact. New programs in video imagery offer the opportunity to design harvest layouts on a more realistic format, which may al
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Wu, Yi-Chieh. "Analyse et considérations pratiques de techniques de conversion et récupération d'énergie piézoélectrique linéaires et non-linéaires." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0085/document.

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La décroissance de la consommation électrique des dispositifs électroniques leur a permis une croissance sans précédent. Néanmoins, les éléments de stockage d’énergie (piles et batteries), bien qu’ayant initialement promus ce développement, sont devenus un frein à la prolifération des microsystèmes électroniques, de part leur durée de vie limitée ainsi que des considérations environnementales (recyclage). Pour palier à ce problème, la possibilité d’exploiter l’énergie de l’environnement immédiat du dispositif a été proposée et a fait l’objet de nombreuses recherches au cours des dernières anné
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Ibraimo, Nadia Alcina. "Rainwater harvesting : management strategies in semi-arid areas." Diss., University of Pretoria, 2011. http://hdl.handle.net/2263/25801.

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Rainfall in semi-arid areas is generally insufficient to meet crop water requirements, and above all erratic in distribution. This leads to crop yield fluctuation, which drastically affects food security. Rainwater harvesting technologies have been implemented in these areas in order to mitigate the effect of perennial droughts. The successful adoption of these technologies can contribute to poverty alleviation, and therefore improve the livelihood of resource-poor subsistence farmers. Field trials for testing different rainwater harvesting scenarios are expensive, time consuming and laborious
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Rahman, M. Shafiqur. "A Hybrid Technique of Energy Harvesting from Mechanical Vibration and Ambient Illumination." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2220.

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Hybrid energy harvesting is a concept applied for improving the performance of the conventional stand-alone energy harvesters. The thesis presents the analytical formulations and characterization of a hybrid energy harvester that incorporates photovoltaic, piezoelectric, electromagnetic, and electrostatic mechanisms. The initial voltage required for electrostatic mechanism is obtained by the photovoltaic technique. Other mechanisms are embedded into a bimorph piezoelectric cantilever beam having a tip magnet and two sets of comb electrodes on two sides of its substructure. All the segments are
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de, Koninck David Andrew. "Thermal conductivity measurement using the 3-omega technique: applications to power harvesting microsystems." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22039.

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The optimal design of power generating microsystems requires accurate knowledge of the thermal properties of their constituent materials at the appropriate length scale. The goal of this thesis was to build an apparatus for measuring the thermal conductivity of thermally-insulating dielectric materials using the so-called 3-omega technique. This technique utilizes a microfabricated metal line deposited on the specimen to act as a resistive heater. When an alternating current (AC) voltage signal is used to excite the heater at a frequency ω, the periodic heating generates oscillations in the el
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Motjolopane, Bokang Patrick. "A power harvesting technique to facilitate energy conversion in distributed wireless sensor networks." Thesis, Cape Peninsula University of Technology, 2008. http://hdl.handle.net/20.500.11838/1113.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2008. Includes bibliographical references (leaves 67-72).<br>Distributed wireless sensor networks (DWSNs) are applied in a variety of applications that can enhance the quality of human life or even save lives, such as in fire monitoring, where DWSN microsensors relay the exact location of the fire to water sprinkler actors to automatically extinguish the fire. Batteries are currently the predominant source of energy in DWSNs. one of the key obstacles in the adoption of DWSN technology is the limited lifetime o
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Centurión, Patricio, Ronald Gamarra, Gonzalo Caballero, Paul Kaufmann, and Pia Delgado. "Optimizing harvesting for facial lipografting with a new photochemical stimulation concept: One STEP technique™." Springer Science and Business Media Deutschland GmbH, 2020. http://hdl.handle.net/10757/655506.

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Background: Facial fat grafting for rejuvenation is one of the most popular facial aesthetic procedures in plastic surgery. It is always challenging and since there are a lot of techniques for adipose tissue (AT) harvesting, there are no standard procedures that guarantee natural and long-lasting results. We developed the selective tissue engineering photo stimulation technique (One STEP™) in which we used a novel infrared 1210-nm wavelength laser diode for fat preserved harvesting and direct fat injection that we named PicoGraft™, with no fat manipulation. Methods: This is a retrospective des
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Kainulainen, V. (Vesa). "Safety and morbidity of intra-oral zygomatic bone graft harvesting:development of a novel bone harvesting technique." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:9514274741.

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Abstract This study focuses on the development of a bone collecting device for intra-oral bone harvesting and on the introduction of a new bone graft donor site, zygomatic bone. A bone collector was constructed and tested in vitro. This bone collector is suitable and efficient in dental implant related bone grafting surgery. It was also found to be more efficient and with a larger capacity in bone harvesting when compared to the two commercially available bone collectors. A zygomatic bone harvesting technique is introduced in this study. The safety and morbidity of the method was assessed i
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Burke, Thomas A. "Modification and Validation of a Novel Solid-Liquid Separation Technique Using a Microscreen and Capillary Belt System." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1324052073.

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Souza, Domingos. "Harvesting of Saphenous Vein for Coronary Artery Bypass Grafting : An Improved Technique that Maintains Vein Wall Integrity and Provides a High Early Patency Rate." Doctoral thesis, Uppsala University, Thoracic Surgery, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1655.

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<p>The primary aim of this thesis was to modify saphenous vein (SV) harvesting technique and evaluate its clinical importance. A new "no touch" (NT) technique of SV preparation was developed where the vein is harvested with a pedicle of surrounding tissue, which protects the vein from spasm therefore obviating the need for distension.</p><p>Firstly, a prospective randomised study in 156 patients who underwent coronary artery bypass grafting was done to compare this new "no touch" technique to two others, the conventional (C) and the intermediate (I) techniques. A morphological study of the end
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Souza, Domingos Sávio Ramos de. "Harvesting of saphenous vein for coronary artery bypass grafting : an improved technique that maintains vein wall integrity and provides a high early patency rate /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2002. http://publications.uu.se/theses/91-554-5232-9/.

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El, Fatnani Fatima Zahra. "Récupération d’énergie issue des variations temporelles de la température par effet pyroélectrique." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI088/document.

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Cette thèse, de nature expérimentale, rentre dans le cadre de la récupération d’énergie pour les micro-générateurs et l’autonomie des dispositifs électroniques à faible consommation. Ce travail propose les possibilités de récupérer de l’énergie thermique par effet pyroélectrique. L’éner- gie thermique à convertir est une variation temporelle de température. Nous avons proposé deux principales techniques pour produire de l’énergie électrique via une céramique pyroélectrique de type PZT. La première est centrée sur la récupération des radiations infrarouges associé à la tech- nique SSHI. Origine
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Samano, Ninos. "No-Touch Saphenous Veins in Coronary Artery Bypass Grafting : Long-term Angiographic, Surgical, and Clinical Aspects." Doctoral thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-50039.

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Ischemic heart disease is currently the leading cause of death globally. Coronary artery bypass grafting (CABG) is considered the best treatment for many patients and its success depends on the long-term patency of the conduits. Greater use of arterial grafts has been advocated because of their higher long-term patency compared to saphenous vein grafts (SVGs). Despite this, SVGs account for up to 80% of all grafts used in CABG. Consequently, the long-term patency of the saphenous vein (SV) is one of the most crucial challenges in cardiovascular surgery. The no-touch (NT) SV in CABG has shown a
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TAMAGNONE, PAOLO. "Progress in planning mitigation and adaptation strategies driven by indigenous knowledge and numerical modelling to face hydrometeorological hazards in the Sahel." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2912982.

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Žák, Jaromír. "Návrh a optimalizace senzorických systémů využívajících malovýkonových napájecích generátorů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-234527.

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Dissertation thesis is focused on using alternative energy sources called energy harvesting. This thesis offers a solution to problems with autonomous powering of sensor networks if primary power source recovery is impossible. In these cases, energy of the external power (e.g. temperature, light, motion) should be used. Proposed solution should be especially used in the field of medical applications (e.g. cochlear implants, pacemakers, insulin pumps). Long time monitoring of the personal health status is also possible when employing automated sensor systems. In this work, there is state of art
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Brites, Alice Dantas. "Monitoramento dos efeitos ecológicos e socioeconômicos da comercialização de produtos florestais não madereiros." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/90/90131/tde-24032011-215203/.

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A comercialização de produtos florestais não madeireiros (PFNMs) popularizou-se como atividade promotora do desenvolvimento socioeconômico de comunidades florestais com baixo impacto ambiental. Há evidências, contudo, de que a exploração possa produzir efeitos ecológicos e socioeconômicos negativos, sugerindo que é necessário monitorar tais iniciativas. A comercialização frequentemente ocorre em áreas remotas e em contextos de pobreza, como é o caso de muitas daquelas da Amazônia brasileira. Desta forma, é necessário que o monitoramento restrinja-se a avaliar os efeitos evidenciados como mais
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Zhao, Ping. "Energy Harvesting Techniques for Autonomous WSNs/RFID with a Focus on RF Energy Harvesting." Phd thesis, 2012. https://tuprints.ulb.tu-darmstadt.de/3102/1/phd_diss_ZhaoPing.pdf.

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Supply circuits that harvest energy from surrounding ambient or dedicated sources have drawn much interest recently for providing a possibility of energy-autonomy to the wireless sensing devices. The objective of this thesis is to optimize the power transfer efficiency of the RF/microwave energy transducers in WSN/RFID applications. For this purpose, analysis on the power utilization of the wireless devices at different working states has been done, which implies a space of improving the power transfer efficiency by employing a novel design concept in the RF/microwave energy transducers. In o
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Wen-ChuenLiu and 劉文權. "Integrated Circuits Design Techniques for Light-Energy Harvesting." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/9zba9j.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>101<br>This thesis proposes the design techniques for light-energy processing circuits, which target the applications of wireless sensor network (WSN) node, mobile devices and grid-connected systems. For WSN nodes, an energy-efficient maximum power point tracking (MPPT) charger, which integrates adaptive MPPT and switching schemes, is proposed for maximizing the MPPT and power conversion efficiency. This concept leads over other literatures of the related field and aids ubiquitous installation of small-size WSN nodes to be a reality. On the design of photovo
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Ugwuogo, James. "On-Demand Energy Harvesting Techniques - A System Level Perspective." Thesis, 2012. http://hdl.handle.net/10012/7089.

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In recent years, energy harvesting has been generating great interests among researchers, scientists and engineers alike. One of the major reasons for this increased interest sterns from the desire to have autonomous perpetual power supplies for remote monitoring sensor nodes utilizing some of the already available and otherwise wasted energy in the environment in a very innovative and useful way (and at the same time, maintaining a green environment). Scientists and engineers are constantly looking for ways of obtaining continuous and uninterrupted data from several points of interests espe
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FU, JING-WEN, and 傅靖雯. "Study of Environmental Electromagnetic Energy Harvesting and Reusing Techniques." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7vq4w5.

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碩士<br>逢甲大學<br>通訊工程學系<br>106<br>With the increasing number of wireless devices implemented in recent years, environmental electromagnetic waves are everywhere all around. Despite EMI noise from digital devices, most of electromagnetic waves energy originate from the various wireless communication systems, such as 4G/LTE, wireless local area network (WLAN), Bluetooth, and radio frequency identification systems (RFID) etc. As green energy is getting more popular, the application of rectennas is used more widely to convert those environmental electromagnetic waves into reusable energy. Therefore,
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Pravin, P. "Studies on shrimp harvesting Techniques In aquaculture (TH 115)." Thesis, 2003. http://eprints.cmfri.org.in/7168/1/TH-115.pdf.

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Shrimp harvesting techniques playa major role in the efficient and profitable operation of traditional shrimp farms. It is a labour intensive operation. However, there is a paucity of information of harvesting techniques in the traditional sector of shrimp culture in India. Problems are encountered in harvesting cultured shrimps especially in the farms, which are not fully drainable. Various harvesting techniques such as sluice net operation, cast netting, gill netting, complete draining of the farms and hand picking are deployed at different stages to harvest the shrimp from the farms.
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Wu, Yi-Chieh, and 吳怡潔. "Broadband modeling of nonlinear techniques for vibration control and energy harvesting." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/83058939092720586096.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>99<br>The decrease in consumption of electronic components has allowed the growth of mobile wireless applications and with this rapid growth, the replacement and disposal of battery have become a problem. Therefore, alternative power sources from ambient environment recently grasped people&apos;&apos;s interest. The basic idea of energy harvesting consists of converting a given source to a more useful form of energy. Among the numerous available energy sources, piezoelectric materials that convert vibrational energy into electrical energy received much attention as l
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(11199066), Guler Demir. "DETERMINATION IN-SITU RUNOFF HARVESTING (IRH) POTENTIAL OF WATERSHEDS IN ARID AND SEMI-ARID AREAS." Thesis, 2021.

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<p>Rainwater harvesting techniques are ancient practices that have been used for many years by different countries and civilizations. Runoff water harvesting is a promising technique to collect water and store it effectively in surrounding plant or crop areas. With global warming and climate change, water availability and accessibility are becoming even more critical, particularly in arid and semi-arid areas of the world. Annual rainfall is either scarce or insufficient to support farming practices in many areas. Thus, it is necessary to capture, store, and utilize water when it is sufficient
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Shiu, Bo-Yu, and 許博昱. "Design and Implementation of Miniature Wireless ECG Monitoring Systems with Energy Harvesting Techniques." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/m6jr8n.

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博士<br>國立中正大學<br>電機工程研究所<br>103<br>This thesis presents a miniature wireless ECG monitoring system with energy harvesting. This integrated system is composed of several sub-systems , including analog front-end circuits (instrumentation amplifiers, filters, and an analog-to-digital converter), biomedical digital signal processing (DSP) and an energy harvesting regulator. The physiological detection devices of the proposed integrated system meet the demands of small and portable, and improve battery life by power supply with energy harvesting techniques. In this research, the analog front-end
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Chen, Jiun-Jung, and 陳俊忠. "Improved circuit design on self-powered synchronized switching techniques for piezoelectric energy harvesting." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/95427616228964582187.

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碩士<br>國立臺灣大學<br>工程科學及海洋工程學研究所<br>104<br>In recent years, the concept of the machine to machine (M2M) and the internet of things (IoT) have drawn the industry’s much attention. In order to monitor different status of the environment, the requirement for sensors are increasing. Due to the advancement of semiconductor fabrication technologies, the power consumption of the sensor was reduced to about ten microwatts. In order to solve the power supply of the sensor, the energy harvesting technology can transform the vibrational energy into electrical energy from the environment. The energy harvesti
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Moreira, Germano Filipe da Silva. "Tomato robotic harvesting in protected horticulture: Machine Learning techniques for fruit detection and classification." Master's thesis, 2021. https://hdl.handle.net/10216/138435.

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