Дисертації з теми "Halide materials"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Halide materials".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
RAY, ANIRUDDHA. "Synthesis and Characterization of Halide Perovskites and Lower-Dimensional Metal Halide Based Materials." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046865.
Повний текст джерелаTomita, Hiroki. "Synthesis and Characterization of Copper Halide Complex Materials." Thesis, KTH, Tillämpad fysikalisk kemi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-292153.
Повний текст джерелаEnergy consumption is presently a hot topic in the world since the world’s population continues to grow. As a result, global energy consumption is increasing rapidly and the emission of carbon dioxide is also increasing, which causes global warming and climate change. Thus, the development of renewable energy sources will be one of the solutions. Solar energy is one of the renewable energy sources and has a huge potential to satisfy the global energy demand. A solar cell harvests light and converts it to electricity. Many kinds of solar cells have been developed in the past decades, and investigation for the improvement of the efficiency will be continued in the future. Copper halide organic complex materials have some potential for optical and electrochemical properties due to several charge transfer states inside the structure. By combining copper halide with bidentate organic ligands, the complex will form high dimensional network structure and will have electrical property due to the formation of electron conducting paths. Since copper halide complex has potential for unique optical and electrical properties, it is worth investigating for the further photovoltaic application. The aim of the thesis is to investigate copper halide complex material showing optical and electrochemical property. Copper halide complex with bidentate ligands were synthesized and the way to apply copper halide complex to films were also investigated in this thesis. In chapter 1 and 2, the background and the introduction of this study and the experimental methods are presented. In chapter 3, the synthesis of copper iodide 4,4’-bipyridine complex and the characterization of the complex sample are presented. The application of the complex to glass substrate is also discussed. In chapter 4, the synthesis of copper halide N-oxide-4,4’-bipyridine complex and the characterization are discussed. In chapter 5, the way to apply copper iodide pyridine to copper foil and FTO-coated glass substrate is discussed.
Nariyan, Elham. "Halide Removal from Water by Novel Bismuth Materials." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/399435.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Eng & Built Env
Science, Environment, Engineering and Technology
Full Text
Harwell, Jonathon R. "Optoelectronic applications of lead halide perovskites." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/16943.
Повний текст джерелаDemirbas, Erhan. "Investigation of lamp phenomena and lamp materials." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268289.
Повний текст джерелаHarrison, Richard Allen 1963. "Far-infrared properties of halide glasses by molecular dynamics." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277257.
Повний текст джерелаXie, Sihan Ph D. Massachusetts Institute of Technology. "Development of colloidal quantum dot and lead halide perovskite light emitting devices." Thesis, Massachusetts Institute of Technology, 2021. https://hdl.handle.net/1721.1/130674.
Повний текст джерелаCataloged from the official PDF of thesis. Page 139 blank.
Includes bibliographical references (pages 118-138).
In recent years, optically active semiconductors, such as organic molecules, colloidal quantum dots (QDs) and lead halide perovskites, have emerged as top candidates for light emitting materials. One key feature of these materials is their bandgap tunability, e.g. via size or chemical composition, allowing for their emission color to be turned throughout the entire visible spectrum. Thin-film light emitting devices (LEDs) based on these luminophores are promised to deliver the next-generation display technologies that are ultrathin and light, high-color-quality, and energy efficient with new form factors (e.g. foldable and flexible). In this thesis, we present the work performed to improve the understanding and performance of colloidal nanocrystal QDs and lead halide perovskites as visible luminophores in optically- and electrically-driven thin-film LEDs. First, we create an efficient voltage-controlled optical down-converter by operating a quantum dot light emitting diode (QD-LED) under reverse bias. Using field-induced luminescence quenching to our advantage, we show that a large electric field can strongly modify QD carrier dynamics, resulting in stable and reversible QD photoluminescence (PL) modulation. Next, we address the QD's toxicity issue by developing a synthesis of heavy-metal-free ZnSe/ZnS core-shell QDs with narrow spectral linewidth and high PL quantum yield. By employing these QDs as emitters, we demonstrate QD-LEDs with efficient and saturated blue electroluminescence (EL). Finally, we present a new way of depositing compact CsPbBr₃ perovskite thin films by thermal co-evaporation and demonstrate all vacuum-processed perovskite LEDs with efficient green EL emission. Our results show that evaporative deposition can be a viable alternative to solution-based deposition for fabricating high-quality perovskite thin films for LEDs.
by Sihan Xie.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Materials Science and Engineering
Chih-Hsiang, Yo. "The Synthesis Of High Surface Area Ti Sponges By Halide Conversion Process For Capacitor Anodes." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1363107584.
Повний текст джерелаDeng, Zeyu. "Rational design of novel halide perovskites combining computations and experiments." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/287932.
Повний текст джерелаWeber, Oliver. "Structural chemistry of hybrid halide perovskites for thin film photovoltaics." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.761012.
Повний текст джерелаNgo, Thi Tuyen. "Analysis of the Interaction of Halide Perovskite with Other Materials and its Effect on the Performance of Optoelectronic Devices." Doctoral thesis, Universitat Jaume I, 2019. http://hdl.handle.net/10803/668130.
Повний текст джерелаLas perovskitas de haluro (HP) han demostrado ser materiales prometedores para la preparación de células solares (CS), LED y otros dispositivos optoelectrónicos eficientes, utilizando técnicas de preparación de bajo costo. Empero, problemas como la baja estabilidad e histéresis obstaculizan su comercialización. Como se ilustra, la combinación de materiales con diferentes naturalezas es una estrategia exitosa para mejorar las propiedades. En esta Tesis Doctoral analizamos la interacción de los HP con otros materiales, buscando aplicaciones potenciales. Los resultados señalaron que (1) la preparación adecuada de ETM mejora significativamente tanto el rendimiento como la estabilidad a largo plazo de las CS. (2) Se puede lograr una mejor calidad de película HP combinando HP con QD o moléculas orgánicas, lo que resulta en una mejora en el rendimiento de CS, LED y amplificadores de luz. (3) Se puede obtener una nueva propiedad, la emisión de exciplex, de la combinación de HP y QD.
Khazaee, Maryam [Verfasser], and Doru C. [Akademischer Betreuer] Lupascu. "Materials for halide-based thin film solar cells / Maryam Khazaee ; Betreuer: Doru C. Lupascu." Duisburg, 2019. http://d-nb.info/1191714136/34.
Повний текст джерелаBaker, Paul K. "Seven-coordinate halocarbonyl complexes of the type [MXY(CO)â†3(NCMEe)â†2] (M = Mo, W; X, Y = halide, pseudo halide) as highly versatile starting materials." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395109.
Повний текст джерелаSafdari, Majid. "Chemical Structure and Physical Properties of Organic-Inorganic Metal Halide Materials for Solid State Solar Cells." Doctoral thesis, KTH, Tillämpad fysikalisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199951.
Повний текст джерелаSvenska sammandrag: Metylammoniumbly(II)jodid har under de senaste åren genererat ett stort intresse som ett möjligt material for utveckling av effektiva och på industriell skala billiga solceller. Detta material har använts som ljusabsorberande skikt i fasta solceller med imponerande omvandlingseffektiviteter på över 22% för solceller i laboratorieskala. För att denna nya typ av solceller ska bli intressanta för produktion på industriell skala, så behöver grundläggande frågeställningar kring materialens stabilitet avseende högre temperaturer och fukt klargöras. MAPbI3 har formellt perovskitstruktur med den allmänna formel ABX3, där A utgörs av den organiska katjonen (metyammoniumjonen) och som kan kopplas till materialets instabilitet. I denna avhandling har olika alkylammoniumbly(II)jodidmaterial syntetiserats där den organiska katjonen modifierats med syftet att studera växelverkan mellan struktur och fysikaliska egenskaper hos de resulterande materialen. Material av olika dimensionalitet erhölls; tredimensionella (3D) nätverk (MAPbI3, MAPbBr3), tvådimensionella (2D) skiktade strukturer (BdAPbI4, HdAPbI4, OdAPbI4), och endimensionella (1D) kedjestrukturer (EAPbI3, PAPbI3, EAPb2I6). Flera nya lågdimensionella material (2D och 1D) tillverkats och karaktäriserats för första gången. Enkristalldiffraktometri har använts för att erhålla materialens atomära struktur. Strukturen hos material tillverkade i större mängder konfirmerades genom jämförelse mellan resultat från pulverdiffraktion och enkristalldiffraktion. Den oktaedriska strukturenheten [PbI6] utgör ett återkommande tema i materialen sammankopplade till olika dimensioner. Då större organiska katjoner används karaktäriseras i regel strukturerna av större enhetsceller och lägre symmetri. De lågdimensionella materialen ger typiskt störe elektroniskt bandgap, lägre fotoinducerad ledningsförmåga och därför sämre omvandlingseffektiviteter då de används i solceller. De lågdimensionella materialen (1D och 2D) som baseras på de större organiska katjonerna uppvisar bättre stabilitet med avseende på högre tempereratur och fukt. De tvådimensionella materialens elektroniska struktur har karaktäriserats med hjälp av röntegenfotoelektronspektroskopi, liksom röntgenabsorptions- och emissionsspektroskopi. Resultat från teoretiska beräkningar stämmer väl överens med de experimentella resultaten, och de visar att materialens valensband huvudsakligen består av bidrag från atomorbitaler hos jod, medan atomorbitaler från bly främst bidrar till edningsbandet. Sammantaget erbjuder avhandlingen en översikt av sambandet mellan kemisk dimensionalitet och fysikaliska egenskaper hos ett antal organiska/oorganiska blyhalogenidmaterial med fokus på tillämpning i solceller.
QC 20170123
Cleaver, Patrick Joseph. "Electronic and Crystalline Characteristics of Mixed Metal Halide Perovskite Semiconductor Films." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1547412870005544.
Повний текст джерелаRathod, Siddharth Narendrakumar. "Structure Stability and Optical Response of Lead Halide Hybrid Perovskite Photovoltaic Materials: A First-Principles Simulation Study." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1496189488934021.
Повний текст джерелаVicente, Juvinch R. "Photo-driven Processes in Lead Halide Perovskites Probed by Multimodal Photoluminescence Microscopy." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1585838644331732.
Повний текст джерелаHettiarachchi, Chaminda Lakmal. "Organometal Halide Perovskite Solar Absorbers and Ferroelectric Nanocomposites for Harvesting Solar Energy." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7034.
Повний текст джерелаPuscher, Bianka [Verfasser], Dirk [Akademischer Betreuer] Guldi, and Dirk [Gutachter] Guldi. "Charge Carrier Diffusion and Transfer Mechanism in Hybrid Lead Halide Perovskite Materials / Bianka Puscher ; Gutachter: Dirk Guldi ; Betreuer: Dirk Guldi." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2020. http://d-nb.info/1203375379/34.
Повний текст джерелаPIPITONE, CANDIDA. "DESIGN, SYNTHESIS AND ATOMIC/ELECTRONIC STRUCTURAL ANALYSIS OF HYBRID HALIDE PSEUDO-PEROVSKITES: PERSPECTIVES AND OPEN ISSUES FOR NOVEL THERMOELECTRIC MATERIALS." Doctoral thesis, Università degli Studi di Palermo, 2022. http://hdl.handle.net/10447/533298.
Повний текст джерелаKolodziej, Charles. "Laser Spectroscopic Studies of Ultrafast Charge Transfer Processes in Solar Cell Materials." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1586371698913592.
Повний текст джерелаAustin, Michael. "An investigation of the processing and reconstruction conditions necessary to optimize the transmissin hologram images formed using conventinal silver halide materials." Thesis, University of Westminster, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237408.
Повний текст джерелаYu, Yue. "Thin Film Solar Cells with Earth Abundant Elements: from Copper Zinc Tin Sulfide to Organic-Inorganic Hybrid Halide Perovskite." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513289830601094.
Повний текст джерелаLiu, Shuhao. "Electronic Transport in Functional Materials and Two-Dimensional Hole System." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1522893320666086.
Повний текст джерелаHosseinian, Ahangharnejhad Ramez. "Fabrication of Perovskite Solar Cells & Applications in Multijunction Configurations." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1575980394222122.
Повний текст джерелаYang, Lei. "Hole Transport Materials for Solid-State Mesoscopic Solar Cells." Doctoral thesis, Uppsala universitet, Fysikalisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-232271.
Повний текст джерелаFRANCESCHINI, PAOLO. "NOVEL SCHEMES FOR ULTRAFAST MANIPULATION OF QUANTUM MATERIALS." Doctoral thesis, Università Cattolica del Sacro Cuore, 2022. http://hdl.handle.net/10280/111822.
Повний текст джерелаThe possibility to control the electronic properties on-demand on an ultrafast time scale represents one of the most exciting challenges towards the realization of new generation photonic and electronic devices. Triggered by this, in the last decades the research activity focused its attention to different solid-state platforms. Among all, dielectric nanostructures (and metamaterials) and correlated materials represent the most promising candidate for the implementation of devices endowed by new functionalities. Apart from the specific features making dielectrics more suitable for photonic applications and correlated materials for electronic devices, both categories exhibit new functionalities if subjected to an external stimulus in the form of excitation light pulses shorter than the relaxation timescale of the internal degrees of freedom of the system. Indeed, the out-of-equilibrium state achieved upon photoexcitation exhibits electronic and optical properties highly different from those at equilibrium. Therefore, the aim of this thesis work consists in the development of new methods and experimental approaches capable to induce, measure, and control new functionalities in complex materials on an ultrafast time scale.
Linaburg, Matthew Ronald. "Studies of Halide Perovskites CsPbX3, RbPbX3 (X=Cl-, Br-, I-), and Their Solid Solutions." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449074303.
Повний текст джерелаAhmed, Ejaz, and Michael Ruck. "Chemistry of polynuclear transition-metal complexes in ionic liquids." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138716.
Повний текст джерелаDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
Dsouza, Brendan Harry. "Material Degradation Studies in Molten Halide Salts." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103052.
Повний текст джерелаDoctor of Philosophy
Molten salts are considered as potential fuel and coolant candidates in MSRs because of their desirable thermophysical properties and heat-transfer capabilities. However, they pose grave challenges in material selection due to their corrosive nature, which is attributed to the impurities and their concentration (mostly moisture and oxygen-based) in the salt. This study focused on purifying the salt to reduce these contaminants without compromising its composition and properties. The influence of purification processes on the corrosion behavior of HAYNES® 230® alloy was studied in the molten chloride salt with different purity conditions. Various nickel and ferrous-based alloys were also studied for their compatibility in the molten chloride salt. This will assist in expediting the material selection process for various molten salt applications. It was observed that several factors such as alloy composition, its microstructure, impurities in the salt attribute to molten salt corrosion. It was also quite evident that corrosion in molten salts is inevitable and hence, the focus was shifted on slowing down this process by providing protective barriers in the form of coatings (i.e. boronization). The borided (coated) alloys not only improved the corrosion resistance but also enhanced and retained their properties like hardness after exposure to molten salts. Since these studies were conducted under static conditions, a more detailed investigation is needed for the selected alloys by subjecting them to extreme flow-conditions and for longer a duration of time. To achieve this objective, a forced circulation molten salt loop was designed and fabricated to conduct flow corrosion studies for alloys in molten chloride salt. Graphite is another critical component of the MSR where it is used as a moderator or reflector. Generally, molten salts exhibit poor wettability with graphite, but they can still infiltrate (graphites) at higher applied pressures, and result in the degradation or disintegration of graphite's structure, and eventually its failure in the reactor. This study provides infiltration data, and understanding of the degradation of various 'virgin' nuclear graphite grades by the molten fluoride salt. This should assist in the selection of tolerable or impermeable graphite grades for MSR operational purposes.
Ahmed, Ejaz, and Michael Ruck. "Chemistry of polynuclear transition-metal complexes in ionic liquids." Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27774.
Повний текст джерелаDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Gretton, Geoffrey B. "Use of an incorporated hardening developer to produce a phase modulated hologram in a silver halide material /." Online version of thesis, 1989. http://hdl.handle.net/1850/11358.
Повний текст джерелаGalvagno, Erica <1998>. "A study on lead halide perovskites: preparation and characterization." Master's Degree Thesis, Università Ca' Foscari Venezia, 2022. http://hdl.handle.net/10579/21967.
Повний текст джерелаKuvayskaya, Anastasia, and Aleksey Vasiliev. "Use of Suzuki Coupling Reaction for Synthesis of Functionalized Materials." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/162.
Повний текст джерелаDHANABALAN, BALAJI. "Developing Metal-Halide Layered Perovskite Nanomaterials for Optoelectronics." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1041905.
Повний текст джерелаStricker, Elizabeth Ann. "Cuprous Bromide Electrochemistry and its Application in a Flow Battery." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1546604124529032.
Повний текст джерелаSale, Martin William Briddon. "The assessment of the photo response efficiency of the silver halide component in a photo-thermographic material." Thesis, University of Westminster, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263935.
Повний текст джерелаAN, NGOC MAI. "Development of synthesis strategies for efficient, robust, and stable light - emitting nanocomposites based on halide perovskites." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1047167.
Повний текст джерелаLiu, Tianyu. "Perovskite Solar Cells fabrication and Azobenzene Perovskite synthesis: a study in understanding organic-inorganic hybrid lead halide perovskite." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1576840261464488.
Повний текст джерелаTang, Xiaofeng [Verfasser], Tobias [Akademischer Betreuer] Unruh, Christoph [Gutachter] Brabec, and Dai [Gutachter] Zhang. "Investigation on the material stability of metal-halide perovskite semiconductors / Xiaofeng Tang ; Gutachter: Christoph Brabec, Dai Zhang ; Betreuer: Tobias Unruh." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2019. http://d-nb.info/1184023808/34.
Повний текст джерелаGrimm, Judith. "New light emitting materials : synthesis, optical spectroscopy, photon upconversion and photoionization in Ni²+, Ce³+ and Tm²+ doped halides /." [S.l.] : [s.n.], 2006. http://www.zb.unibe.ch/download/eldiss/06grimm_j.pdf.
Повний текст джерелаPhung, Thi Thuy Nga [Verfasser], Dieter [Akademischer Betreuer] Neher, Antonio [Akademischer Betreuer] Abate, and Iván [Akademischer Betreuer] Mora-Seró. "Defect chemistry in halide perovskites : material characterisation and device integration / Thi Thuy Nga Phung ; Dieter Neher, Antonio Abate, Iván Mora-Seró." Potsdam : Universität Potsdam, 2020. http://d-nb.info/1219911461/34.
Повний текст джерелаShahrezaei, Khashayar, and Edvin Öberg. "Evaluation Methods for Friction Materials in a Four-Wheel Drive Drivetrain." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70776.
Повний текст джерелаTant, Joseph. "The influence of second phases on the microstructural evolution and the mechanical properties of geological materials." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/the-influence-of-second-phases-on-the-microstructural-evolution-and-the-mechanical-properties-of-geological-materials(d51de894-09a3-413e-adf7-ca2dc7788ced).html.
Повний текст джерелаWang, Kai. "HIGH PERFORMANCE SOLUTION-PROCESSED PEROVSKITE HYBRIDSOLAR CELLS THROUGH DEVICE ENGINEERING AND NOVEL." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1489066286671653.
Повний текст джерелаSong, Zhaoning. "Solution Processed High Efficiency Thin Film Solar Cells: from Copper Indium Chalcogenides to Methylammonium Lead Halides." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1470403462.
Повний текст джерелаKaloyanova, Valentina B. "Structural Modeling and Optimization of a Joined-Wing Configuration of a High-Altitude Long-Endurance (HALE) Aircraft." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1259075776.
Повний текст джерелаBRUNI, CLAUDIA. "ANALYSIS OF SLENDER PIEZOELECTRIC WING CONFIGURATIONS FOR ENERGY HARVESTING: AEROELASTIC MODELING AND EXPERIMENTAL COMPARISONS." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2652663.
Повний текст джерелаKirsch, Bertrand. "Apport de l'anisotropie des matériaux composites aux performances aéroélastiques des ailes à grand allongement de drones HALE." Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0230.
Повний текст джерелаThe idea of high altitude solar drones, with a virtually infinite endurance, only restrained by maintenance issues, gain ground in the aviation community. However, because of the low on-board power, this concept implies to design a very lightweight high aspect-ratio wing which is very flexible and then vulnerable to destructive instabilities like flutter or torsional divergence. This work consists in developing a computation code, namely GEBTAero, suitable for this type of airframe, allowing to exploit composite materials specificity to avoid such instabilities in the flight domain. Besides literature test cases, a wind tunnel campaign is conducted in order to validate the program performances. Lastly, its ability to be used within an optimisation framework is assessed with a simple shape composite flat plate
Morrisey, Bryan J. "Multidisciplinary Design Optimization of an Extreme Aspect Ratio HALE UAV." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/113.
Повний текст джерела