Дисертації: "System of spherical movement"

1

Zhang, Pu. "Simulations of nonlinear flow in spherical system." Thesis, University of Exeter, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248176.

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2

Noundjeu, Pierre. "The Einstein-Vlasov-Maxwell system with spherical symmetry." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=974828629.

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3

Pixton, Bruce. "Spherical Aberration Gauge for the Human Visual System." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194351.

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Spherical aberration limits the ability of a human eye to form a clear image. The amount of Spherical Aberration found in a given eye is different across a population and is actively changing as a function of accommodation, light level, and age. Any attempt made to correct spherical aberration will need to have an accurate understanding of what the appropriate correction should be. Objective measurement of the Spherical Aberration inherent to the eye's optical systems helps to answer part of the question, but there are other factors in the human visual system, such as processing in the brain that affect what is "seen". Hence, a vision correction approach based purely on objective measurement of the eye's aberrations may not necessarily correspond to better vision. The Spherical Aberration Gauge has been developed to allow subjects to deter- mine for themselves the appropriate amount of correction required. The Gauge is designed to allow users to view an eye chart or scene while adjusting the amount of spherical aberration being introduced. It produces a wide range of spherical aberration levels from which a user can determine a single level that provides best vision. The amount selected by the user is considered a subjective spherical aberration correction and can then be applied to standard vision correction devices or procedures. This project attempts to bridge the gap between what is known about ocular spherical aberration and how the brain interprets the correction. The outcome of this project is to provide a tool that identifies the preferred amounts of spherical aberration correction and that gives insight from subjective feedback on the visual benefit thereof.

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4

Garrett, Travis Marshall Evans Charles Ross. "Simulating binary inspirals in a corotating spherical coordinate system." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1112.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.
Title from electronic title page (viewed Mar. 27, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Physics and Astronomy." Discipline: Physics and Astronomy; Department/School: Physics and Astronomy.

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5

Uddin-Al-Hasan, Main. "Real-time Embedded Panoramic Imaging for Spherical Camera System." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2518.

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Panoramas or stitched images are used in topographical mapping, panoramic 3D reconstruction, deep space exploration image processing, medical image processing, multimedia broadcasting, system automation, photography and other numerous fields. Generating real-time panoramic images in small embedded computer is of particular importance being lighter, smaller and mobile imaging system. Moreover, this type of lightweight panoramic imaging system is used for different types of industrial or home inspection. A real-time handheld panorama imaging system is developed using embedded real-time Linux as software module and Gumstix Overo and PandaBoard ES as hardware module. The proposed algorithm takes 62.6602 milliseconds to generate a panorama frame from three images using a homography matrix. Hence, the proposed algorithm is capable of generating panorama video with 15.95909365 frames per second. However, the algorithm is capable to be much speedier with more optimal homography matrix. During the development, Ångström Linux and Ubuntu Linux are used as the operating system with Gumstix Overo and PandaBoard ES respectively. The real-time kernel patch is used to configure the non-real-time Linux distribution for real-time operation. The serial communication software tools C-Kermit, Minicom are used for terminal emulation between development computer and small embedded computer. The software framework of the system consist UVC driver, V4L/V4L2 API, OpenCV API, FFMPEG API, GStreamer, x264, Cmake, Make software packages. The software framework of the system also consist stitching algorithm that has been adopted from available stitching methods with necessary modification. Our proposed stitching process automatically finds out motion model of the Spherical camera system and saves the matrix in a look file. The extracted homography matrix is then read from look file and used to generate real-time panorama image. The developed system generates real-time 180° view panorama image from a spherical camera system. Beside, a test environment is also developed to experiment calibration and real-time stitching with different image parameters. It is able to take images with different resolutions as input and produce high quality real-time panorama image. The QT framework is used to develop a multifunctional standalone software that has functions for displaying real-time process algorithm performance in real-time through data visualization, camera system calibration and other stitching options. The software runs both in Linux and Windows. Moreover, the system has been also realized as a prototype to develop a chimney inspection system for a local company.
Main Uddin-Al-Hasan, E-mail: main.hasan@gmail.com

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6

Papalia, John M. "Self-ordering of spherical nanoparticles in a block copolymer system." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 192 p, 2007. http://proquest.umi.com/pqdlink?did=1251906361&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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7

SANTOS, RONALDO VITORINO DOS. "MODELING OF A THERMAL STORAGE SYSTEM WITH SPHERICAL ENCAPSULATED MATERIAL." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26927@1.

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O propósito deste trabalho é a modelagem de um sistema de termoacumulação utilizando cápsulas esféricas com material de mudança de fase (MMF) o programa computacional desenvolvido utilizado, foi à plataforma Matlab. O ponto principal do presente trabalho, no seu inédito modelo, está no fato de se estudar este sistema utilizando diferentes dimensões de esferas em único tanque de estocagem (Usualmente a termoamulação em cápsulas esféricas utiliza no interior do tanque cápsulas esféricas com um único diâmetro). Para formar o gelo (calor latente) nas cápsulas, um fluido com temperatura abaixo da temperatura de congelamento da água escoa em regime permanente através das cápsulas. Desta forma há uma troca de calor entre o fluido e as cápsulas com MMF (neste caso água). O ideal seria que toda água no interior das cápsulas se tornasse gelo. Porém, a resistência térmica formada pelo gelo começa a interferir na formação total da água no interior da cápsula. Outro problema é a temperatura do fluido que circula. Com o decorrer do escoamento a temperatura do fluido aumenta ao trocar calor com as cápsulas. Desta forma, as esferas em planos diferentes irão receber um fluido com uma temperatura maior que do plano anterior. Assim o gradiente de temperatura entre o fluido e a água fica cada vez menor influenciando o tempo de formação de gelo em todas as cápsulas. O estudo deste processo de termoacumulação prevê um tempo menor de circulação de fluido para formação de gelo e melhor uso da energia estocada.
The study and use of thermal storage has increased in recent years due to the need to reduce production cost. The purpose of this paper is the modeling of a thermal storage system using spherical capsules with phase change material (water). The main point of the present work lies in the fact that the this system uses different sizes of balls in a single storage tank (usually, in thermal storage spherical capsules systems spherical capsules with a simple diameter only is employed). To form the ice caps, a fluid, with a temperature below the freezing temperature of water, flows permanently through the capsules, so there is an exchange of heat between the fluid and the capsules with water, which freezer. Ideally, all water inside the capsule should become ice, but the thermal resistance posed by the ice begins to interfere with the formation of the total water within the capsule. Another problem is the temperature of the fluid that exchanges heat with the water capsules. As the fluid temperature increases, downstream, time of ice formation is affected by the smaller temperature difference between fluid and capsule external wall.

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8

Plemper, B. "A system dynamics interpretation of groundwater movement." Thesis, University of Sunderland, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414857.

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9

Fogg, Erica J. "An inertial sensor system for analysing human movement." Thesis, University of Bath, 2006. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428432.

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10

Calikoglu, Melih Rustu. "Transformation Of The Caste System And The Dalit Movement." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606141/index.pdf.

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This thesis analyzes the history of caste system and explains the theories of the birth of caste in Indian civilization. After defining the caste system in historical and cultural manner. examines the birth of and spreading of Dalit movement or low caste mass movement during the 19th and 20th century with the influence of British rule.

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11

Mao, Jialei. "Automatic system to measure turning movement and intersection delay." Akron, OH : University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1239638295.

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Thesis (M.S.)--University of Akron, Dept. of Civil Engineering, 2009.
"May, 2009." Title from electronic thesis title page (viewed 8/2/2009) Advisor, Ping Yi; Committee members, William H. Schneider IV, Anil Patnaik; Department Chair, Wieslaw K. Binienda; Dean of the College, George K. Haritos; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.

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12

Choi, Sung In. "Smart Localized Heating Control System With Human Movement Tracking." Master's thesis, Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/407171.

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Анотація:

Electrical Engineering
M.S.E.E.
According to the U.S. energy consumption survey in 2012, about 25% of the commercial and 42% of the residential building energy were used for heating. Despite the development of new and more efficient Heating, Ventilation, and Air Conditioning (HVAC) systems over the years, the high energy consumption in heating is still one of the major energy efficiency issues. Studies showed that decreasing HVAC operating temperature set points by 4°F will result in energy savings of 15% or more. Thus, the smart localized heating control (SLHC) system was designed and prototyped to provide localized heat directly to a person so that HVAC can run at a lower temperature set point. SLHC detects human movement and delivers the heat based on the result of the target location estimation and temperature measurement feedback. To detect the human movement, image processing techniques were used; image segmentation, mass center detection, background subtraction using the Mixture of Gaussian model, and human feature detection. In SLHC, a near-infrared heater and a tracking function were used to provide an instant and a direct heat to the person in order to minimize wasting energy. The SLHC system is divided into the sensing and processing (SP) and the heating and regulating (HR) subsystem. The SP’s primary function is to process captured video images and measured temperature data. SP also generates and sends the heater operating signal to HR. HR purposes to control the heater’s direction and power based on the signal. The communication between SP and HR was established through Wi-Fi enabled development platform. The SLHC prototype successfully processed the sensing data and transmitted the control signal. The result shows that it detected human movement and estimated the person’s location in 3D space within 10% margin of error. Also, it delivered the focused heat to the surface of the human body and increased the temperature by 10.0°F in 3 minutes at the distance of 1.5m away from the heater. This cost-effective, wireless, and localized heating system demonstrates the potential to improve energy efficiency in buildings.
Temple University--Theses

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13

Liu, Yi. "Movement detection in outdoor scenes for traffic monitoring." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26698.

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One important application of image processing and computer vision is traffic monitoring and control. In this thesis, a system for detection of moving vehicles approaching an intersection from a sequence of color images acquired by a stationary camera in the context of traffic light control systems is presented. As the system is dedicated to outdoor applications, efficient and robust vehicle detection under various weather and illumination conditions is examined. To deal with these ever changing conditions, vehicle detection relies on motion segmentation and on an original algorithm using color mapping to achieve feature space segmentation. Experimental results on real outdoor sequences of images demonstrate the system's robustness under various environmental conditions.

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14

Ezenekwe, Dan Emeka. "Design methodology of an air bearing system for multi-DOF spherical actuator motion control applications." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17861.

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15

Lagerkvist, Blomqvist JOHAN, and NILES OSTERMAN. "Automatic control of a dynamic system. : Positioning of a spherical object on a flat surface." Thesis, KTH, Mekatronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190846.

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Controlling the value of a variable and compensating for external influences is a fundamental problem in a wide range of applications. This thesis investigates the issues of such control problems; it presents theory on control design and system modeling as well as the development of a demonstrator in the form of a ball-balancing platform to apply these concepts on. This project’s purpose is to design a dynamic system and a state space controller that performs as well as possible with respect to response time and precision. The purpose of the project is achieved by analyzing the dynamic problem and from it create a theoretical model. This is then used to design a state space controller in order to continuously regulate the position of a ball on the platform. The final step is to build a demonstrator which will be used to verify that the designed controller fulfills the criteria that was assigned at the beginning of the project. The controller was tested by performing a step in the set-point with 15 millimeters. This made it possible to analyze the step response in order to determine the rise time, overshoot and the static error of the system. The result of the tests was a rise time of 0.3 seconds, with a overshoot of 4%, which fulfills the speed demands of the system. The static error had a peak of 3 millimeters offset from the set-point. The main part of the error was caused by a hardware issue in the form of the ball not moving even though the platform is tilting. This due to irregularities on the ball’s surface as well as the resistive touch screens cushioning effect. The static error was therefore deemed as acceptable.
Att kontrollera värdet av en variabel och kompensera för extern påverkan är ett grundläggande problem i en stor mängd tillämpningar. Detta examensarbete undersöker problemen hos den sortens reglerproblem; den presenterar teori för regulatordesign och systemmodellering tillsammans med dokumentation över utvecklingen av en bollbalancerande plattform på vilken koncepten tillämpas på. Syftet med detta projekt är att designa ett dynamiskt system och en tillhörande regulator för att kontrollera systemet med, baserad på en tillståndsmodell som presterar så bra som möjligt gällande snabbhet och precision. Syftet med projektet uppnås genom att analysera the dynamiska problemet och från detta ta fram en teoretisk modell. Den används för att skapa en regulator baserad på tillståndsvariabler för att kontinuerligt kunna kontrollera bollens position på plattformen. Sista steget är att bygga en demonstrator för att verifiera att den färdigställda regulatorn uppnår de kriterier som sattes under projektets början. Regulatorn testades genom att ändra referenspunkten med 15 millimeter. Detta gjorde det möjligt att analysera stegsvaret för systemet för att ta fram värden för stegtid, översläng och statiskt fel. Testen visade att stegtiden blev 0.3 sekunder med en 4% översläng, vilket uppfyllde de hastighetskrav som var satta. Det statiska felet hade ett maxvärde av 3 millimeter från referensvärdet. Den dominerade faktorn av felet bestod av att bollen inte rullar om vinkelutslagen från servomotorn är för små. Detta beror på att bollen inte har en helt slät yta och för att den resistiva tryckplattan som användes har en mjuk yta. Felet ansågs vara acceptabelt.

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16

Argueta-Diaz, Victor. "Proof of feasibility of a free-space optical cross-connect system using digital mems." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1109795698.

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17

Zhu, Shiping. "Robust detection of object movement by a mobile camera system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq28696.pdf.

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18

Schottlaender, Lucia Valentina. "Genetic analysis of multiple system atrophy and related movement disorders." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10046279/.

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The understanding of the pathophysiology of most neurodegenerative movement disorders has been elusive. Such is the case of multiple system atrophy (MSA) and primary familial brain calcification (PFBC). In this thesis I used a range of genetic techonologies and functional strategies to unravel the genetic basis of MSA and PFBC. First, I describe the work performed in MSA and related atypical movement disorders initially by investigating candidate genes. My key findings were: i) begative results when attempting to replicate the association between COQ2 and the risk of MSA, by Sanger sequencing the largest pathologically confirmed MSA cohort the largest pathologically confirmed MSA cohort; ii) reduced levels of Coenzyme Q10 (CoQ10) in the cerebellum of MSA patients with a cerebellar or mixed MSA subtypes when compared to normal controls and other neurodegenerative movement disorders, when I measured the levels in post-mortem brain tissue of MSA and other patients and controls by high performance liquid chromatography (HPLC); iii) identification of three C9orf72 repeat expansions and one intermediate expansion in patients presenting with a corticobasal and progressive supranuclear palsy syndrome, and confirmation of the absence of the expansion in pathologically proven MSA, corticobasal degeneration (CBD) and progressive supranuclear palsy (PSP); iv) identification of a LRRK2 protective variant in MSA by case control analysis of genotyping of LRRK2 candidate variants. Second, I detail my work applying next generation sequencing techonologies (i.e. whole exome sequencing (WES)) to the study of genetic risk factors in MSA: i) Initially I analysed a definite MSA family and ii) later I performed the largest WES study so far in sporadic MSA. This study included 450 cases out of which 298 were pathologically confirmed. These data were first investigated for candidate genes linked to MSA, other synucleinopathies and related neurodegenerative disorders, and later by peforming a case control association study for common and rare variants. The results of this work where not able to replicate previous findings that linked MSA to COQ2 or SNCA, notwidstanding it revealed interesting candidates that require follow up. Third, I studied genetically patients with PFBC. My key findings were: i) a pathogenic SLC20A2 mutation segregating with the disease in an interesting family, found by investigating recently discovered candidate genes I identified by Sanger sequencing; ii) I detail how I studied two independent primary brain calcification consanguineous families by means of homozygosity mapping and WES. I was able to identify a homozygous nonsense mutation segregating with the disease in both families in JAM2, a gene encoding the Junction adhesion molecule 2, a tight junction protein. This is a novel gene previously unreported as a cause of human disease. Through collaborations with other scientists, I showed the absence of the expression of the JAM2 protein in a fibroblast cell line of a homozygous patient compared to a heterozygous carrier and 2 independent controls. Aditionally we studied a knock out JAM-b (ortolog of human JAM2) mouse model and showed gait abnormalities and abnormal brain histopathology. In conclusion, by applying genetic technologies and related methods, I generated important insights into the CoQ10 pathway in MSA, I generated the largest dataset of WES in MSA and I discovered a new gene for PFBC. My findings are discussed inlight of the recent literature and future directions of research into each subject.

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19

LaFay, Eric Bryan. "Mechanical System Design of a Haptic Cobot Exoskeleton." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1181064920.

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20

Marti, Lukas Michael. "Integration of local area augmentation system and inertial navigation system for aircraft surface movement guidance." Ohio : Ohio University, 2000. http://www.ohiolink.edu/etd/view.cgi?ohiou1172603243.

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21

Marti, Lukas Michael. "Integration of local area augumentation system and inertial navigation system for aircraft surface movement guidance." Ohio University / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1172603243.

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22

Koesling, Hendrik. "Visual perception of location, orientation and length an eye movement approach /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=967950880.

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23

Crone-Todd, Darlene E. "Shaping and chaining human limb movement using a video tracking system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23267.pdf.

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24

Kim, Sigon. "Development of risk assessment decision support system for hazardous materials movement." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08232007-112012/.

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25

Hill, Tyler N. "Development of a prototype movement assistance system for extravehicular activity gloves." Thesis, The University of North Dakota, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1583134.

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Анотація:

Spacesuits utilized a rubberized layer of material to contain a pressurized atmosphere to facilitate respiration and maintain the physiologic functions of the astronaut residing within. However, the elasticity of the material makes it resistant to deformation increasing the amount of work required during movement. This becomes particularly fatiguing for the muscle groups controlling the motion of the hands and fingers. To mitigate this a robotic system was proposed and developed. The system built upon previous concepts and prototypes discovered through research efforts. It utilized electric motors to pull the index, ring, and middle fingers of the right hand closed, ideally overcoming the resistive force posed by the pressurized elastic material. The effect of the system was determined by comparing qualitative and quantitative data obtained during activities conducted with and without it within a glove box. It was found that the system was able to offload some of this elastic force though several characteristics of the design limited the full potential this device offered. None the less, the project was met with success and provides a solid platform for continued research and development.

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26

McIntyre, Joseph. "Utilizing elastic system properties for the control of posture and movement." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/13586.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1990.
Title as it appears in the June, 1990 M.I.T. Graduate List: Utilizing elastic mechanical properties for the control of posture and movement.
Includes bibliographical references (leaves 125-131).
by Joseph McIntyre.
Ph.D.

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27

Penna, Nigel Timothy. "Monitoring land movement at UK tide gauge sites using GPS." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362916.

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28

Berz, Gerhard E. "Integration of differential global positioning system and an inertial navigation system for aircraft surface movement guidance." Ohio University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1176841429.

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29

Kawamura, Koei. "Infinite-variate extensions of Krawtchouk polynomials and zonal spherical functions over a local field." Kyoto University, 2018. http://hdl.handle.net/2433/232216.

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30

Kawai, Takashi. "Virus-induced gene silencing in Prunus fruit and nut tree species by Apple latent spherical virus vector." Kyoto University, 2017. http://hdl.handle.net/2433/217995.

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Анотація:

Kyoto University (京都大学)
0048
新制・論文博士
博士(農学)
乙第13073号
論農博第2843号
新制||農||1046(附属図書館)
学位論文||H29||N5029(農学部図書室)
33224
京都大学大学院農学研究科農学専攻
(主査)教授北島宣, 教授土井元章, 教授田尾龍太郎
学位規則第4条第2項該当

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31

Ding, Ting. "Advanced surface movement guidance and control system investigation and implementation in simulation." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/6767.

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The Surface Movement Guidance and Control System (SMGCS) is a system providing the surveillance, routing, guidance and control supports to the airport traffic. The moving objects being managed include all the aircraft and vehicles in the interested area on the surface; the personnel making use of this system are the pilots, vehicle drivers, and ground controllers. The airport surface traffic management has long been discussed because of the operational challenges; this includes the increasing complexity of the field movement management and the density of airport traffic. To improve airport operation qualities, the Advanced Surface Movement Control and Guidance System (A-SMGCS) was introduced. In terms of architecture and capability differences, there are two levels of the A-SMGCS, which are A-SMGCS I & II. The positive impacts on the airport surface operation are: safety, capacity, efficiency, human factor conditions, and economic issues. This project deals with an investigation on SMGCS baseline and the A-SMGCS, covering the system conception, background, current developments and relative technologies. The applications in practical operations are discussed as well. There is also an analysis about the airport surface incursion classification and severity. Based on this, a simulation is presented to illustrate the practical applications of the A-SMGCS. The simulation results show the functions of Human Machine Interface (HMI) in A-SMGCS, including the designation and diversion for clearance, the real-time view of surface target movements and the indications for contracted incursions. Over all, the research aims are to work on an investigation and explanation of A-SMGCS, and to implement a simulation of the system functions. The implementation includes the image processing, system architecture definition in Simulink, Graphical User Interface (GUI) design for the HMI, and the corresponding Matlab programming for simulation environment establishment.

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32

Umraiya, Anurag. "Design of miniaturized coil system using MEMS technology for eye movement measurement." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66669.

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Application of eye movement measurement is especially significant in Neuroscience. Results from eye tracking can give valuable insight into the correlation between neural activity and eye movements. Abnormalities in the eye movements also provide information regarding diagnosis and progress of neurological diseases such as dementia. Another application is in developing human-computer interfaces as a means of communication for the severely handicapped. Although there are numerous eye tracking techniques available, the magnetic search coil method has been prominently used by researchers due to its high accuracy and precision. This technique typically requires the subjects head to be fixed for accurate measurements due to the use of large field coils. Here we propose a miniaturized coil system using MEMS technology for application in eye movement measurement. The coils were designed and modeled using CoventorWare and MagNet software. The microcoils were then fabricated in the McGill Nanotools microfabrication laboratory. We present the results for using the materials Indium Tin Oxide (ITO) and Aluminium for the fabrication of coils. We found that the resulting coil system is capable of identifying displacements along the X, Y and Z axis. The resolution of the system depends on the configuration of the system, it was calculated to be around 20-40 μm on the plane of the coil and it increases near the centre of the coil. Although the proposed coil system holds significant potential, but further exhaustive testing needs to be performed in an environment simulating eye movements.
O Mesurer avec précision les mouvements oculaires constitue un élément essentiel dans ledomaine de la neuroscience. Par exemple, capter les mouvemets de l'oeil contribue à la compréhension de la relation entre les activités neuronales et le comportement oculaire. De meme, les irrégularités observées dans les mouvements des yeux aident à diagnostiquer et à surveiller le progrès de plusieurs troubles mentaux comme la démence. En plus, le tracement de la trajectoire oculaire peut être utilisé pour construire des interfaces homme-machine pour les personnes sévèrement handicapées.Bien que plusieurs techniques de tracement oculaire existent déjà, la bobine de recherche magnétique est fortement utilisée par les chercheurs. Elle offre une haute exactitude et une très bonne précision de mesure. La technique traditionnelle exige l'utilisation de grandes bobines de champs, nécessitant ainsi que la tête du sujet soit fixée en tout temps. En revanche, on propose l'utilisation d'un système de bobines miniaturisées construit avec la technologie MEMS. Les bobines ont été conçues à l'aide des logiciels CoventorWare et MagNet. Les micro-bobines ont été fabriquées dans le laboratoire de micro-fabrication Nanotools de l'Université McGill. On présente les résultats obtenus en utilisant des micro-bobines construites avec la solution solide de l'oxyde de l'étain et l'oxyde de l'indium (ITO). Le système de micro-bobine est capable d'identifier les déplacements dans les trois dimensions X, Y, et Z. La résolution du système dépend de la configuration utilisée. On a trouvé que la résolution peut être entre 20 et 40 μm. Le système proposé est très promettant mais plusieurs tests exhaustifs deraient encore être appliquées dans des environnements qui simulent de vrais mouvements oculaires.

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33

Zheng, Tao, and 郑涛. "A bio-feedback rehabilitation system for neuromuscular recovery on elbow joint movement." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47045917.

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34

Liao, Wei-Sheng, and 廖偉勝. "A Spherical Panorama Image System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/mutx37.

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碩士
國立臺北科技大學
資訊工程系研究所
98
In this paper, we implement a video-based spherical coordinate conversion system, through the combination of OpenGL which have the 3D stereo effect and OpenCL massive parallel computing power to achieve an interactive real-time 3D virtual scene image. Due to the general everyday life single photo taken with the camera view is very limited in scope, in order to get a larger image view even can reach 360 degrees surround effect we usually use image stitching (Image Stitching) technology rather than pictures of the scene adjacent joints. Here we use OpenCL parallel computing techniques to immediately convert multiple images into a panorama texture and present it as a 3D model, compared to traditional CPU approach, we can tell that the more images to process the better efficiency of parallel computing we can get. During the experiment, it shows that when we use NVIDIA 9600GT to process eight 640*480 images, OpenCL can at most enhance efficiency up to ninety times to be able to achieve real-time interaction.

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35

Chen, Pei-Ning, and 陳培寧. "Breakdown simulation of spherical P-N junction with spherical coordinate system." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/77971241238314913448.

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碩士
國立中央大學
電機工程學系
101
The thesis develops a 3D spherical grid model, base on spherical coordinate and combined with impact-ionization model for the spherical P-N junction breakdown simulation. At theory aspect, we use poisson’s equation, electron and hole continuity equation to transfer the equivalent circuit into a model, and simulate the drift-diffusion current, generation and recombination current. At the structure, study the feature of spherical grid, and use trapezoid mesh to approximate the curvature, then build up the parameters. The breakdown voltage at spherical junction will be simulated with different radius and doping, and the result will be compared with Cartesian coordinate to verify this model. This model not only shows a good accuracy but also shows a less simulation time. Finally we investigate the application and feature of the 3D spherical grid model.

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36

HSU, JUI-CHUNG, and 許睿中. "BLBP-Based Spherical Locus Tracking System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/65603421581653614009.

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Анотація:

碩士
開南大學
資訊學院碩士班
104
In many ball competitions, not only player’s position and skill, but also location of the ball plays major rule. This thesis use OpenCV to show how to detect and track the sphere in dynamic images. Inspired by Local Binary Pattern (LBP) texture feature. The LBP feature is to extract feature of center and its neighbor pixels and compare their strength. This thesis also refers to the Block-based Local Binary Patterns (BLBP) about how to get the image texture features. This method consists of two models: Spoke shape of Block-based Local Binary Patterns and Ring shape of Block-based Local Binary Patterns. In comparison model substituted neighborhood of pixel values around the center. In some shape and brightness of texture, BLBP can get much more texture information. In this thesis, we propose BLBP method, which integrates concept of Block-based Local Binary Pattern model; then with Texture-based approach to detect moving objects in the foreground. Finally by help of using of Hough-Circle method tracks the foreground sphere to achieve the ball tracking and detect effect.

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37

Weng, Zuo-Rong, and 翁佐戎. "Movement of Spherical Particles with Various Sizes in a Rotating Annular Cylinder." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/73228411477261672470.

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Анотація:

碩士
國立成功大學
水利及海洋工程學系碩博士班
94
ABSTRACT This study presents the experimental results of the movement of spherical particles with various sizes in a rotating annular cylinder. The sizes of the spherical particles used in experiments are 1.6cm, 3.5cm, 5cm and 8cm, respectively. And the density of the spherical particles are all about 2.5 / . The rotating speeds of the rotating annular cylinder taken in experiments in this study are 4rpm, 10rpm and 16rpm, respectively. Four rotating time (10sec, 30sec, 60sec and 120sec) are adopted to compare with the movement phenomenon. This study presents the movement states of the single size particles and mixing ones, including sliding, slumping and rolling movement states first. The influence of particles volumes, the ratio of coarse-thin particle contents (the ratio of coarse particles weight and thin particles weight), rotating time and rotating speed on movement states are then discussed. After determining the movement states, the movement of a single coarser particle in granular flow (including the movement phenomenon of a single coarser particle in granular flow and the measurement of the appearing time of the particle) is studied, and the influence of particle size and rotating speed on the appearing time of the particle are discussed. Finally, the movement of the mixing spherical particles with various sizes (including the movement phenomenon of the mixing spherical particles with various sizes and the changes of the coarse particles in each direction), the influence of rotating time, rotating speed and the ratio of coarse-thin particle contents on the changes of the coarse particle quantities are studied. The experiment demonstrates that the rotating speed increase, the granular flow in the annular cylinder will display the movement phenomenon of sliding, slumping and rolling. At the sliding state, the granular flow profile is close to the critical profile. At the slumping state, the granular flow slumps periodically in the annular cylinder, and the surface slope of slumping state before slumping has direct ratio with rotating speed, and the surface slope of slumping state after slumping has an inverse ratio with rotating speed. If the ratio of coarse-thin particle contents is 1:1, the slumping range increases with rotating speed. However, if the ratio of coarse-thin particle contents is 3:7 and 1:9, the slumping range is smaller. At the rolling state of the single size particles, the surface slope of the granular flow is bigger than the critical one, but it is smaller than the surface slope of slumping state before slumping. Whichever movement states, the shape of profile of granular flow influenced by rotating time is not certainly obvious. Whichever rotating speed, the case of the ratio of coarse-thin particle contents is 1:1, the granular flow volumes is the maximum, the second is 3:7, and 1:9 is the minimum. However, at the same rotating speed, the granular flow volumes before slumping is bigger than the one after slumping. At the portion of the movement of a single coarser particle in granular flow, the results demonstrate that when the ratio of relative particle size or the rotating speed increases, the first appearing time of the coarser particle will decrease, but the second appearing time is not relative obviously to the ratio of relative particle size. At the portion of the movement of the mixing spherical particles with various sizes, when the annular cylinder starts the rotation, the coarse and thin particles in the annular cylinder will be separated, and the coarse particles will move toward the front end and two sides gradually. Besides, the paper will take the experimental data to explain the phenomenon.

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38

Chen, Jin-Zhong, and 陳金鐘. "Preliminary Study on the Movement of Spherical Particles in a Rotating Annular Cylinder." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/68777025496773988926.

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Анотація:

碩士
國立成功大學
水利及海洋工程學系
88
ABSTRACT The paper presents the experimental results of the movement of spherical particles in a rotating annular cylinder. Two kinds of spherical particles were used in the experiments: polystyrene pellets and glass marbles. The percentage of the cylinder volume occupied by spherical particles is referred as percent fill(F). Based on percent fills, the movements of the particles in the cylinder can be classified into two types. The first type (type A) is that the particles in the cylinder only touch the outer cylinder while the inner cylinder has no effect on the particles when F is less than 0.17. The second type (type B) is that the particles in the cylinder touch both the outer and inner cylinders when F is more than 0.22. There is a transition zone when F is between 0.17 and 0.22. The present study investigates the raised height of the particles, the distribution of particle flow velocity in the cylinder and the relation between the distribution and the rotating speed of the cylinder under different kinds of percent fills, and calculate the shear stress acting on the walls of the cylinder. The result shows that the raised height of the particles in the cylinder increases with the cylinder rotating speed. Under the same rotating speed, the bigger the percent fill is, the bigger the raised height will be. Based on the measured geometric shape of the spherical particles flow pattern in the cylinder, we can calculate the shear stress acting on the cylinder. The shear stress acting on the cylinder by the moving particles in the cylinder increases with the cylinder rotating speed. Under the same rotating speed, the bigger the percent fill is, the bigger the shear stress acting on the cylinder will be. The results also show that the dimensionless shear stress increases with Froude number, but seems independent of the percent fill. Besides, the present study also analyzes the distribution of particle flow velocity and discusses the side-wall effect on the particle movement.

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39

Liu, Jen-Huan, and 劉仁煥. "Research and Development on the Delta Type Parallel Mechanism with Spherical Local Movement." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/70426953210309682120.

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40

Heil, Ann Terese. "Movement of a Spherical Brownian Particle Between Infinite Parallel Plates: Hindered Dispersion and Sedimentation." Thesis, 1988. https://thesis.library.caltech.edu/7529/1/Heil%20AT%201988.pdf.

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The dispersion of an isolated, spherical, Brownian particle immersed in a Newtonian fluid between infinite parallel plates is investigated. Expressions are developed for both a 'molecular' contribution to dispersion, which arises from random thermal fluctuations, and a 'convective' contribution, arising when a shear flow is applied between the plates. These expressions are evaluated numerically for all sizes of the particle relative to the bounding plates, and the method of matched asymptotic expansions is used to develop analytical expressions for the dispersion coefficients as a function of particle size to plate spacing ratio for small values of this parameter.

It is shown that both the molecular and convective dispersion coefficients decrease as the size of the particle relative to the bounding plates increase. When the particle is small compared to the plate spacing, the coefficients decrease roughly proportional to the particle size to plate spacing ratio. When the particle closely fills the space between the plates, the molecular dispersion coefficient approaches zero slowly as an inverse logarithmic function of the particle size to plate spacing ratio, and the convective dispersion coefficent approaches zero approximately proportional to the width of the gap between the edges of the sphere and the bounding plates.

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41

Lin, Di-Hong, and 林廸宏. "Fingertip-Movement Analysis System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/v8825y.

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Анотація:

碩士
國立臺灣科技大學
電機工程系
103
A fingertip-movement analysis system is proposed in this paper. This system can distinguish the gesture like flick-right, flick-left, pinching to zoom in and out and taking picture to be a way for human-computer interaction. We combine background subtraction and skin detection to extract hand region. This method can remove most noise in the complex background. After hand extraction we use particle random diffusion algorithm to position fingertip. The algorithm uses particles to diffuse to the contour of hand randomly. Then keep the particles which are located in fingertip. After that, a particle grouping algorithm is applied to distinguish each fingertip. Fingertip position is the average position of each group’s particles. The system will analyze fingertip in three different ways which are single fingertip-movement analysis, double fingertip-movement analysis and four fingertip-movement analysis. By this system, user can easily interact with computer without any fingertip marker. The experimental results show that our system can operate in real-time at a frame rate of 29fps and with 84.58% fingertips detection rate.

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42

Lin, Shuo-Chun, and 林碩群. "Development of Spherical Piezoelectric Motor and System Function Testing." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/w46ghn.

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碩士
中原大學
機械工程研究所
98
Abstract A new type of piezoelectric spherical motor by means of traveling wave is developed. The spherical motor comprises of the stator and rotor. Curved piezoelectric actuator is designed in order to attach to the spherical surface. A series of the curved piezoelectric actuators are laid in a line around a spherical surface. Applying appropriate voltage signal with phase difference on the neighboring actuators, traveling wave is thus generated on the hemispherical shell. Design and analysis and experiment for one and two DOF operation are presented in this article. An FEM software (ANSYS) is used to analysis the hemi-spherical stator. For performance improvement, groove on hemi-spherical shell along the ceramics actuators is designed to avoid from the disturbance wave so that can guide the rotation direction as well as preload mechanism is designed to increase the rotation efficiency. A test bed is designed on which experiment is carried to measure the rotation speed and torque of the spherical motor and verify its system performance.

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43

WU, YU-HSUN, and 吳昱勳. "A Digital Navigation System Based on Interactive Spherical Images." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/a27ynh.

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Анотація:

碩士
大葉大學
資訊工程學系碩士班
105
Most of today's exhibition maps and map information are based on traditional flat photos, or hand-painted with the camera to produce. Google Map provides the user with the freedom to choose the viewing angle and location, but the Google Map in the Google Map in the view of the problem, Google Map provides the user with the freedom to choose the viewing angle and location, but the Google Map in the view point of view, Update and there is no way to do updates from time to time. In order to solve the above problems, this paper designs and realizes a digital navigation system based on spherical images. Through the interactive spherical interface, users can rotate the screen to see the sights, and when the user turns to the specific area, The image will be a special information hotspot and move to the next image of the link hotspot, the user a photo of interest in the information, click on the screen to browse the details, such as the user to browse the attractions of the image, you can Turn to a specific angle to click to switch to the next image. The content section of the news, the original only display text, we modify and add Sway to do the display of the content, allowing users to browse photos can also provide interactive.

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44

Cummings, Hennen Dock. "Pesticide downward movement in a bermudagrass system compared with movement in a fallow system." 2004. http://www.lib.ncsu.edu/theses/available/etd-08062004-145358/unrestricted/etd.pdf.

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45

Liu, Chi-Tun, and 劉基墩. "Intelligent Head Movement Interpretation System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/7b3hfn.

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Анотація:

碩士
國立臺北科技大學
自動化科技研究所
97
Communication is an easy gesture for normal persons, but for disabled persons, it may be much harder for them to communicate with another person. There are many publications on how to use Assistive Technology to help disabled persons to communicate more effectively with someone. In this research, we develop an Intelligent Head Movement Interpretation System (IHMTS) for physically disabled persons who can not communicate vocally with someone. The device combines a three dimensional locating system to produce a resulting product that can position ,track, and using pattern regonition to regonize the movement of the head that is using our device to generate alphabetical letters from A to Z by generating a motion. We explore the use of Time Different of Arrival (TDOA) measurement to get the distance between Transmission Processing Unit (TPU) and Distance Sensor (DSR). The Sensing Processing Unit (SPU) collects the data of every DSR and sends data to Interpretation Processing Unit (IPU). IPU is a high precision 3D locating system that tracks and regonize the movement.

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46

Shih, Hsien-Tsung, and 施賢宗. "The Eye Movement Control System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/85705290541184423680.

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Анотація:

碩士
國立中央大學
光電科學研究所
98
In the modern era of convenient transportation and information abundance people can easily get information from the internet and reach any place in mind with transport. However, for the physically-limited community, they can not move at will, but their eyes are able to rotate freely. So the development of a set of eye movement control system makes their daily life easier and more complete. The purpose of this research is to construct a set of "eye movement control system", using EOG method (Electro-OculoGram, EOG) as a way to capture eye movement signals. Eye movement signals are processed and identified by circuit boards, sent to microprocessor to transform into control signals, and finally linked as control signals to the controller, so that the user can execute the action they want by using this system. In this thesis, the tracking of eye movement is used to construct four different commands, and the user can quickly and precisely control switch. The equipment structure used in this system is simple, has small size components, easy to carry, possess good stability and easily controlled by the user.

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47

Chang, Chia-Sheng, and 張嘉勝. "Design and Implementation of a Spherical Inverted Pendulum Control System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/12644408178259657124.

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碩士
國立中興大學
電機工程學系所
98
This thesis develops techniques for system design, modeling and hierarchical sliding-mode control of a spherical inverted pendulum control system. A mechatronic approach is employed to design and construct the system structure for the spherical inverted pendulum control system. With the structure, Newtonian and Lagrangian mechanics are respectively employed to establish two types of mathematical models, decoupled and coupled. Both models are shown consistent under two special cases. Hierarchical siding-mode control and backstepping technique are used to propose decoupled and coupled controllers so as to maintain the nutation angle at zero and achieve position tracking at the same time. Via Matlab/Simulink, the effectiveness and merit of both controllers are exemplified by conducting several simulations on the coupled model. Experimental results indicate that the proposed decoupled controller is capable of providing satisfactory control performance for the spherical inverted pendulum.

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48

Cheng, Min-Chung, and 鄭閔中. "Design and Analysis Reflector System Of Spherical Si Solar Cell." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/06243629871134675072.

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Анотація:

碩士
國立臺灣大學
機械工程學研究所
95
The two major bottlenecks of developing solar cell are cost effective and solar cell efficiency. Not all incident light of spectrum is absorbed by solar cell and transformed to current completely in the fact. The maximum efficiency of the single solar cell is about 25% which is almost achieved to the theoretical value. The thesis mainly studies on spherical solar cell combining with reflector and mentions the way that can increase the power of electricity output. It not only increases the region of incident light, but also increases the power of electricity output at the same time if designing the reflector system of spherical solar cell has be done. Design the better reflector (Type B and Type C) geometrically, calculate the Shape Factor of incident light to the Si spherical and the area of incident light with mathematics in the thesis. The two new types (Type B and Type C) of the reflector system are increased the region of incident light by using the incident light which reflects it to the bottom of the spherical. The incident light of region can be reached approximating 100% as the incident light is 90°.

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49

Chung, Tai-Yu, and 鍾岱宇. "The Development of Micro Spherical Stylus in Image Measurement System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/deh5ns.

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Анотація:

碩士
國立臺北科技大學
機電整合研究所
97
This article mainly develop a set Micro Spherical Stylus of image measure system and using Sub-Pixel techniques measurement Micro Spherical Stylus of offset. This measure system includes a high dpi CCD video camera, a precise XYZ stage, and a rotational fixture to obtain the original profile image of Micro Spherical Stylus.Then, it uses digital image processing which including Color Transform,Lowpass Filter,and value computing including Last-Square Method,Quadratic Interpolation Method to gain the important geometric parameters. Finally, do the image binarization, edge detection, such as the edge points to deal with information obtained by AutoCad professional software. The development and experiment outcome of this measure system can give support to analyze the relationship between discharge machining and Stylus. and The provision of Micro-CMM (Coordinate Measure Machine) measurement of the compensation parameters.

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50

Chen, Chin-Chien, and 陳瑾鍵. "An Approach to Semi-spherical Microphone Array Based Localization System." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/62192966696735122554.

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Анотація:

碩士
南台科技大學
電機工程系
96
A semi-spherical microphone array based sound localization system for service robots is proposed in this thesis, which offers the robot hearing functions to distinguish where the sound is. The hardware structure of this system consists of 12 capacitor microphones disposed in two layers on the semi-sphere of 19 cm diameter. In which, the upper layer disposes four microphones at every 90 degrees, and the lower layer disposes eight ones at every 45 degrees. The hardware can be mounted upon the head of the robot to determine the 3D relative locality relationship between the sound and the robot. Based on this data, the robot can perform face-to-face conversations, direct interaction, or/and objective searching. Besides, since the proposed system applies the fuzzy localization inference frame, even in the environment with higher electrical noise and echo interference, it also can acquire satisfactory recognition. From the experimental results, it can be seen that the proposed system not only has improved sound localization recognition, but also provides the 3D locality information of the sound. One can adopt this framework on robotic systems to arise the flexibility of human-robot, environment-robot, or service interaction. It also makes the robot closer to life, moreover lets the robot become a member of family.

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