Дисертації з теми "Posture Measurement"
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Yarbrough, Walthea V. "Postural data incorporated into traditional work measurement." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164306/.
Повний текст джерелаWang, Weihe. "Measurement of neutral cervical and cervicothoracic posture in healthy adults." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq22420.pdf.
Повний текст джерелаHa, Tshui Hung. "Measurement of lumbar spinal posture and motion using inertial sensors." Thesis, University of Brighton, 2010. https://research.brighton.ac.uk/en/studentTheses/5f9f5b5f-2560-4565-8db3-9b3510f6bb0f.
Повний текст джерелаHopkins, Breanna Cristine Berry. "Validity of PostureScreen Mobile® in the Measurement of Standing Posture." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4119.
Повний текст джерелаLiv, Per. "Efficient strategies for collecting posture data using observation and direct measurement." Doctoral thesis, Umeå universitet, Yrkes- och miljömedicin, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-59132.
Повний текст джерелаBasiratzadeh, Shahin. "Augmented Reality Approach for Marker-based Human Posture Measurement on Smartphones." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39674.
Повний текст джерелаFlatters, Ian John. "Posture and visuomotor performance in children : the development of a novel measurement system." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/7832/.
Повний текст джерелаVan, Niekerk Sjan-Mari. "Measuring the sitting posture of high school learners : a reliability and validity study /." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/480.
Повний текст джерелаTigbe, William Wiewatenni. "Patterns of free-living physical activity and posture : objective measurement and relation to coronary risk." Thesis, Glasgow Caledonian University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547421.
Повний текст джерелаMascaro, Stephen A. (Stephen Austin). "Design and analysis of fingernail sensors for measurement of fingertip touch fouce and finger posture." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29920.
Повний текст джерелаIncludes bibliographical references (leaves 142-148).
A new type of wearable sensor for detecting fingertip touch force and finger posture is presented. Unlike traditional electronic gloves, in which sensors are embedded along the finger and on the fingerpads, this new device does not constrict finger motion and allows the fingers to directly contact the environment without obstructing the human's natural haptic senses. The fingertip touch force and finger posture are detected by measuring changes in the coloration of the fingernail; hence, the sensor is mounted on the fingernail and does not interfere with bending or touching actions. Specifically, the fingernail is instrumented with miniature light emitting diodes (LEDs) and photodetectors in order to measure changes in the reflection intensity when the fingertip is pressed against a surface or when the finger is bent. The changes in intensity are then used to determine changes in the blood volume under the fingernail, a technique termed "reflectance photoplethysmography." By arranging the LEDs and photodetectors in a spatial array, the two-dimensional pattern of blood volume can be measured and used to predict the touch force and posture. This thesis first underscores the role of the fingernail sensor as a means of indirectly detecting fingertip touch force and finger posture by measuring the internal state of the finger. Desired functionality and principles of photoplethysmography are used to create a set of design goals and guidelines for such a sensor.
(cont.) A working miniaturized prototype nail sensor is designed, built, tested, and analyzed. Based on fingertip anatomy and photographic evidence, mechanical and hemodynamic models are created in order to understand the mechanism of the blood volume change at multiple locations within the fingernail bed. These models are verified through experiment and simulation. Next, data-driven, mathematical models or filters are designed to comprehensively predict normal touching forces, shear touching forces, and finger bending based on readings from the sensor. A method to experimentally calibrate the filters is designed, implemented, and validated. Using these filters, the sensors are capable of predicting forces to within 0.5 N RMS error and posture angle to within 10 degrees RMS error. Performances of the filters are analyzed, compared, and used to suggest design guidelines for the next generation of sensors. Finally, applications to human-machine interface are discussed and tested, and potential impacts of this work on the fields of virtual reality and robotics are proposed.
by Stephen A. Mascaro.
Ph.D.
Fourie, Sarie Marissa. "3D measurement of cervical and thoracic postural dynamism in sitting : a pilot study." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85712.
Повний текст джерелаENGLISH ABSTRACT: The aim of this study was to improve the measurement of postural dynamism in the sitting position using a three-dimensional (3D) motion analysis system. The primary objective was to describe pilot data for postural dynamism of the cervical and thoracic spines while working at a desktop computer. The secondary objective was to refine the process of posture measurement and analysis by decreasing data processing time. Certain factors in 3D motion analysis can lead to an increase in gaps in data collected during trial capture, which in turn will lead to a longer time of data processing. In the first phase of this study, a number of such factors were identified and altered. A series of pilot studies was performed to test the improvement of data processing time when altering these factors. In the first two pilot studies, camera and tripod positionings were explored and refined, workstation layout and anatomical landmark marker placement were investigated, and optimal capture frequency was established. In both these pilot studies, outcomes were established by means of trial and error by experimenting with a variety of different options for the different outcomes. In the third pilot study, computer software which provides computer tasks for the participant during primary trial capture was tested. Two independent computer users performed all the activities as per software, after which they were required to give oral feedback and suggestions on improvement in terms of user friendliness. The objective of the fourth and final pilot study was to include all of the outcomes from the preceeding pilot studies and attempt a trial run of the actual data collection process. A study participant with no affiliation to the research project was used and a complete trial run was performed after which the measurement process was deemed feasible. In the primary study, 18 student volunteers completed a sequence of computer tasks, including keyboard, mouse and reading activities. Prior to data capture, full range of motion of the thoracic and cervical spines were measured in three dimensions for every participant. Data capture took place for the full duration of performance of all computer activities. Outcome parameters for postural dynamism included true range of motion (degrees), proportional range of motion (percentage) and motion frequency (movement per minute) in all three planes of motion of the cervical and thoracic spines. Typing tasks were associated with biggest movement ranges and motion frequencies. Mouse activity was associated with the most stationary posture, exhibiting the least frequent movement as well as the smallest ranges of motion. The results from this study allow us to better understand the dynamic nature of posture, as well as postural dynamism associated with different computer tasks. This study provides a baseline for future research of 3D motion analysis of the sitting posture. It also marks the need for further research regarding ergonomics, use and potential alternatives in the computer workstation and input devices.
AFRIKAANSE OPSOMMING: Hierdie studie het ten doel gehad om die meting van posturale dinamisme in die sitposisie te verbeter deur middel van „n drie-dimensionele (3D) bewegingsanalisesisteem. Die primêre doelwit was om loodsdata te beskryf vir posturale dinamisme van die servikale en torakale werwelkolomme terwyl op „n rekenaar gewerk word. Die sekondêre doelwit was om die proses van postuurmeting en analise te verfyn deur die dataprosesseringstyd te verminder. Sekere faktore van 3D bewegingsanalise kan „n vermeerdering van gapings in ingesamelde data tot gevolg hê, wat weer kan lei na „n verlengde tydperiode van dataprosessering. In die eerste fase van hierdie studie is sulke faktore identifiseer en aangepas. „n Reeks loodsstudies is uitgevoer om die verbetering van dataprosesseringstyd te toets namate aanpassings aan hierdie faktore gemaak is. Tydens die eerste twee loodsstudies is verskillende kamera en driepoot posisionering ondersoek en verfyn, werkstasie uitleg en anatomiese baken merker plasing is ondersoek en die optimale dataversamelingsfrekwensie is vasgestel. In beide hierdie loodsstudies is die uitkomste vasgestel op grond van toets- en fouteer deur te eksperimenteer met „n verskeidenheid opsies soos van toepassing op die betrokke uitkomste. Tydens die derde loodsstudie is rekenaarsagteware getoets wat die rekenaaraktiwiteit vir die studiedeelnemers verskaf het tydens primêre data-insameling. Twee onafhanklike persone het al die aktiwiteite volgens die sagteware voltooi en het verbale terugvoer en aanbevelings gegee oor hoe om die program te verbeter. Die vierdie en finale loodsstudie het gepoog om al die uitkomste van die eerste drie loodsstudies in te sluit en „n toetsmeting te doen van die ware dataversamelingsproses. „n Onafhanklike studiedeelnemer met geen affiliasie tot die navorsingsprojek nie het „n toetslopie van die hele versamelingsproses gedoen en die metingsproses is haalbaar verklaar. Tydens die primêre studie het 18 student-vrywilligers „n reeks rekenaartake gedoen (insluitend sleutelbord en muisaktiwiteite sowel as „n leesopdrag). Voor die aanvang van dataversameling is die volle bewegingsomvange van die torakale en servikale werwelkolomme van elke deelnemer gemeet. Dataversameling is vir die volle durasie van die uitvoer van rekenaaraktiwiteite gedoen. Uitkomsparameters vir posturale dinamisme het die volgende ingesluit: Omvang van beweging (grade), proporsionele omvang van beweging (persentasie) en bewegingsfrekwensie (bewegings per minuut) in al drie bewegingsvlakke van die servikale en torakale werwelkolomme. Sleutelbord-aktiwiteite is geässosieer met die grootste bewegingsomvange en die meeste bewegingsfrekwensie. Muisaktiwiteit is geässosieer met die mees stasionêre postuur en het die heel minste gereelde beweging getoon in die algemeen. Die resultate van hierdie studie help om die dinamise natuur van postuur beter te verstaan, sowel as posturale dinamisme wat met verskillende rekenaartake verbind word. Die studie bied „n basislyn vir die toekomstige navorsings wat posturale dinamisme met verskillende rekenaartake meet. Dit merk ook die behoefte aan verdere navorsing aangaande ergonomika, gebruik en alternatiewe tot rekenaarwerkstasie en –toerusting.
Ray, Soumitry J. "Intelligent hazard identification: Dynamic visibility measurement of construction equipment operators." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51968.
Повний текст джерелаVan, der Westhuizen Gareth. "Design, implementation & analysis of a low-cost, portable, medical measurement system through computer vision." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6764.
Повний текст джерелаENGLISH ABSTRACT: The In the Physiotherapy Division of the Faculty of Health Sciences on the Tygerberg Hospital Campus of the University of Stellenbosch, the challenge arose to develop a portable, affordable and yet accurate 3D measurement machine for the assessment of posture in school children in their classroom environment. Currently Division already uses a state-of-the-art VICON commercial medical measuring machine to measure human posture in 3D in their physiotherapy clinic, but the system is not portable and is too expensive to cart around to different places for testing. To respond to this challenge, this Master’s thesis designed and analyzed a machine and its supporting system through both research on stereo-vision methodologies and empirical appraisal in the field. In the development process, the research was required to overcome the limitations posed by small image resolutions and lens distortions that are typical of cheap cameras. The academic challenge lay in the development of an error prediction model through Jacobian derivation and Error Propagation Law, to predict uncertainties of angular measurement calculated by the system. The research culminated in a system that is comparable in accuracy to the VICON within 3mm, and that has 1.5mm absolute accuracy within its own system for a measurement volume radius of 2.5 m. As such, the developed error model is an exact predictor of the angular error to within 0.02° of arc. These results, for both system accuracy and the error model, exceed the expectations on the basis of the initial challenge of the system. The development of the machine was successful in providing a prototype tool that is suitable for commercial development for use by physiotherapists in human posture measurement and assessment. In its current incarnation, the machine will also serve the Engineering Faculty as the most fundamental form of a three-dimensional measuring apparatus using only basic theories and algorithms of stereo-vision, thereby providing a basic experimental platform from which further scientific research on the theory and application of computer vision can be conducted.
AFRIKAANSE OPSOMMING: Die Fisioterapie Afdeling van die Fakulteit Gesondheidswetenskappe op die Tygerberg kampus van die Universiteit van Stellenbosch gebruik ’n allernuutste VICON kommersiële mediese meettoestel om menslike postuur in drie dimensies te meet. Vanuit hierdie Afdeling het die uitdaging ontstaan om ’n draagbare, bekostigbare, maar tog akkurate, drie-dimensionele meetapparaat geskik vir die meet van die postuur van skoolkinders in die klaskamer te ontwikkel. In aanvaarding van hierdie uitdaging, het hierdie Magistertesis ’n toestel en ondersteuningstels ontwerp en ontleed deur beide navorsing in stereo-visie metodiek en terplaatse beoordeling. In die ontwikkelingsproses moes die navorsing die beperkings wat deur klein-beeld resolusie en lens-distorsie (tipies van goedkoop kameras) meegebring word, oorkom. Die akademiese uitdaging lê in die ontwikkeling van ’n voorspellende foutmodel deur van die Jacobianse-afleiding en die Fout Propageringswet gebruik te maak om onsekerheid van hoeksberekening deur die stelsel te voorspel. Die navorsing het gelei tot ’n stelsel wat binne 3mm vergelykbaar is in akkuraatheid met dié van die VICON en ook 1.5mm absolute interne akkuraatheid het in ’n meet-volume radius van 2.5m radius. Die ontwikkelde foutmodel is dus ’n presiese voorspeller van hoekfout tot binne 0.02° van boog. Die resultate met betrekking tot beide die akkuraatheid en die foutmodel het die oorspronklike verwagtinge van die uitdaging oortref. Die ontwikkeling was suksesvol in die skep van ’n prototipe-toestel geskik vir kommersiële ontwikkeling, vir gebruik deur fisioterapeute in die meting en evaluering van menslike postuur. Die stelsel is in sy fundamentele vorm, deur die gebruik van slegs basiese teorieë en algoritmes van stereo-visie, funksioneer as ’n drie-dimensionele meetapparaat. In die fundamentele vorm sal die stelsel die Ingenieursfakulteit dien as ’n basiese eksperimentele platform waarop verdere wetenskaplike navorsing in die teorie en toepassing van rekenaar-visie gedoen kan word.
Sandham, John Andrew. "The measurement of craniofacial morphology, head posture and nasal airflow in patients with congenital clefts of the lip and palate." Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/26916.
Повний текст джерелаSilva, Fabiana Cristina da. "Avaliação de um programa computacional para a medida da lordose lombar." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/5494.
Повний текст джерелаAim: Antropometric approaches to estimate postural alignment are important to permit epidemiologic investigations of the role of posture in the development of lumbar back pain.The aim of this study was evaluate the accuracy and reliability of the Digitalizing Posture Evaluation System (DPES) in the measurement of lumbar lordosis compared with radiographic measurement (gold standard). Design: cross-sectional study. Participants: Accuracy study Groups markers of (T12,L3,L5) and markers of (L1,L3,L5) were composed of 16 and 17 patients repectively. The intra and interobserver reliability group was composed of 80 patients. Principal measures: Skin markers were placed on spinous processes of T12 or L1,L3 and L5. Lateral radiographs and photographs were taken in the upright position. Radiographic measurement using Cobb, Centroid (CLL) and Spinous Process methods was compared with DPES. Results: Group 1: Correlation coefficient between DPES and Cobb was 0,803 (p<0,001); between DPES and CLL 0,642 (p<0,001); between DPES and SP 0,917 (p < 0,001) with r² = 0,842. Group 2: correlation coefficient was 0,559 (p=0,020) between SP and Cobb; 0,325 (p=0,302) between SP and CLL; and 0,763 between SP and DPES.The reliability coefficients were 0,981 (p<0,001) for interobserver and 0,978 (p<0,001) for intraobserver measurement of the same photographs. Comparing diferent photographs, the reliability was 0,956 (p<0,001) for interobserver and 0,872 (p< 0,001) for intraobserver evaluations. Conclusion: The DPES method correlated well with radiographic measurement of lumbar lordosis.
Schall, Mark Christopher. "Application of inertial measurement units for directly measuring occupational exposure to non-neutral postures of the low back and shoulder." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/2008.
Повний текст джерелаDeShaw, Jonathan. "New methodologies for evaluating human biodynamic response and discomfort during seated whole-body vibration considering multiple postures." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4611.
Повний текст джерелаMorphett, Adrian. "Workplace analysis for regional pain syndrome the development and application of posture measurement model and cervical assessement tools for reducing the risk of regional pain syndrome /." Swinburne Research Bank, 2009. http://hdl.handle.net/1959.3/67282.
Повний текст джерелаA thesis submitted for the degree of Doctor of Philosophy, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, 2009. Typescript. "February 2009". Includes bibliographical references (p. 291-313)
Caron, Olivier. "Relation d'amplitude entre centre de gravité et centre des pressions en fonction de la fréquence pour estimer la performance en posturologie." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10270.
Повний текст джерелаCabral, Cristina Maria Nunes. ""Recuperação funcional da síndrome fêmoro-patelar: um estudo comparativo entre fortalecimento e alongamento muscular"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5160/tde-16102006-163040/.
Повний текст джерелаThe patellofemoral syndrome (PFS) affects young adults and is characterized by knee pain during functional activities. PFS etiology includes bigger Q angle and muscular imbalances. For treatment, quadriceps femoris strengthening are normally performed, but we were unable to locate documentation about the application of stretching exercises in the patellofemoral joint rehabilitation. The aim of this study was to compare the efficacy of quadriceps femoris muscle strengthening and posterior chain stretching exercises in the functional recovery of PFS patients. Forty female nonathletes aged between 18 and 32 years old were recruited. Before treatment, it was measured: flexibility, hamstring tightness, Q angle, functional injury level of the knee by the application of questionnaires and electromyography (EMG) of the vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF) and lateral gastrocnemius(LG) muscles during isometric contractions of leg flexion and extension. After this initial evaluation, patients were divided into four treatment groups: Group 1 (G1) performed posterior chain global stretching exercises, Group 2 (G2) segmentary stretching exercises of hamstring and gastrocnemius muscles, Group 3 (G3) quadriceps femoris strengthening exercises in open kinetic chain and Group 4 (G4) quadriceps femoris strengthening exercises in closed kinetic chain, with progressively resistance increases. This treatment lasted eight weeks, twice a week. Before and after each treatment session, the visual analogue scale accessed pain intensity. The data obtained before and after treatment for all groups were analyzed by Wilcoxon test, and the data between groups by Anova and Duncan test or Friedman Anova or Manova (α < 0.05). Comparing the data before and after treatment, the results showed a significant improvement in pain intensity in G1 and G3 and a decreased Q angle in G1 and G2. For the EMG activity, VM muscle activity was not modified after treatment, VL activity increased in G2 and G3, BF activity increased only in G3 and LG activity increased in G3 and G4. Between groups, G1 showed greatest flexibility, G4 greatest EMG activity of BF muscle, while G1 and G3 showed greatest activity of LG muscle. Based on these results, we suggest that stretching exercises, specifically in global modality, can be prescribed in PFS treatment, especially in its initial phases, for an effective reduction of pain intensity. Moreover, this treatment caused a knee alignment (by reducing Q angle)and flexibility improvement, which may facilitate muscular strengthening.
Reed, Lloyd Fisher. "An investigation of foot and ankle problems experienced by nurses." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/35779/1/Lloyd_Reed_Thesis.pdf.
Повний текст джерелаTowle, Josie A. "Increasing the precision of measurement of postures in free space." Thesis, University of Nottingham, 1986. http://eprints.nottingham.ac.uk/11193/.
Повний текст джерелаVan, Driel Robin. "Evaluating methods to use the Virtual Corset™ inclinometer for trunk posture measurements." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/10508.
Повний текст джерелаÚlehlová, Eva. "Návrh postupu kontroly vybraných součástí revolveru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417743.
Повний текст джерелаChang, Hung. "Spatial distribution of ventilation and perfusion in the lateral decubitus posture /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/10540.
Повний текст джерелаElliott, Andrew Brent. "Risk assessment and the effects of overhead work - an automotive industry example." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1005211.
Повний текст джерелаBassement, Jennifer. "Identification of fall-risk factors degradation using quality of balance measurements." Thesis, Troyes, 2014. http://www.theses.fr/2014TROY0035/document.
Повний текст джерелаFalls concern a third of the people aged over 65y and lead to the loss of functional ability. The detection of risks factors of falls is essential for early intervention. Six intrinsic risk factors of fall: vision, vestibular system, joint range of motion, leg muscle strength, joint proprioception and foot cutaneous proprioception were assessed with clinical tests before and after temporarily degradation. Standing balance was recorded on a force plate.From the force plate, 198 parameters of the centre of pressure displacement were computed. The parameters were used as variables to build neural network and logistic regression model for discriminating conditions. Feature selection analysis was performed to reduce the number of variables.Several models were built including 3 to 10 conditions. Models with 5 or less conditions appeared acceptable but better performance was found with models including 3 conditions. The best accuracy was 92% for a model including ankle range of motion, fatigue and vision contrast conditions. Qualities of balance parameters were able to diagnose impairments. However, the efficient models included only a few conditions. Models with more conditions could be built but would require a larger number of cases to reach high accuracy. The study showed that a neural network or a logistic model could be used for the diagnosis of balance impairments. Such a tool could seriously improve the prevention and rehabilitation practice
John, Václav. "Analýza postupu posouzení shody těla převodníku kroutícího momentu se specifikací." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378008.
Повний текст джерелаSchinneck, Jakub. "Kalibrační postupy etalonu Datron 4920." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240913.
Повний текст джерелаBigelow, Kimberly Edginton. "Identification of Key Traditional and Fractal Postural Sway Parameters to Develop a Clinical Protocol for Fall Risk Assessment in Older Adults." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1227561171.
Повний текст джерелаHájková, Alena. "Návrh interní metodiky pro měření výrobků a dílů na přístroji CMM UPMC Zeiss na pracovišti ČMI Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417433.
Повний текст джерелаŠrámek, Jan. "Vyjadřování nejistoty u přesných délkových měření II." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229763.
Повний текст джерелаFaria, Bernardes Daniel. "Information Diffusion in Complex Networks : Measurement-Based Analysis Applied to Modelling." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-01001763.
Повний текст джерелаLysý, Zbyněk. "Management kalibrace souřadnicového měřicího stroje (SMS)." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230181.
Повний текст джерелаGildenhuys, Fourie. "An improved device to measure human response to dorsiflexion and plantar flexion perturbations." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96000.
Повний текст джерелаENGLISH ABSTRACT: The Dorsiflexometer is a device designed and built for the assessment of a patient’s balance capabilities. The birth of the Dorsiflexometer is due to a serious need for physiological balance assessment equipment, capable of conducting dynamic tests in the clinical setting. This is accomplished by recording and analysing the patient’s response to sagittal plane perturbations. The Dorsiflexometer is operated from a computer software interface program. It uses the measurements from a single force plate to calculate four balance metrics’ characterising a patient’s ability to maintain balance. These balance metrics include the sway index, equilibrium score, postural stability index and radius parameter. A single and a double inverted pendulum model of the human body is derived to calculate a patient’s centre of mass movement in the sagittal plane with the measured force plate data and body parameters. Three experiments, involving 48 subjects, were conducted. The experimental tests proved the competency of the machine, the accuracy of both inverted pendulum models and the balance response of seafarers aboard an Antarctic research and supply vessel during rough sea conditions. The tests concluded that the inverted pendulum models can be used to calculate the body centre of mass displacement. The double inverted pendulum model results are more accurate compared with the single inverted pendulum model. During rough sea conditions, the body movement and postural response of seafarers are increased in order to keep themselves upright. The body is furthermore exposed to a fluctuating ground reaction force which may lead to the progression of osteoarthritis and musculoskeletal injuries. The Dorsiflexometer proved to be capable of conducting repeatable assessments and yielding accurate results which can be used to distinguish between balance capabilities.
AFRIKKANSE OPSOMMING: Die Dorsiflexometer is ’n apparaat wat die balansvermoë van pasiënte analiseer. Die masjien is ontwerp en vervaardig weens die groot behoefte aan fisiologiese balans assesserings toerusting wat dinamiese toetse in die mediese sektor kan bepaal. Dit word bereik deur pasiënte se liggaamsreaksie in die sagittale vlak te meet en te assesseer. Die Dorsiflexometer is beheerbaar vanaf ’n rekenaar sagteware koppelvlak program. Die masjien maak gebruik van ’n enkele kragplaat om pasiënte se balans statistieke te meet. Hierdie balans statistieke wat die pasiënte se balans vermoë beskryf en karakteriseer behels die sogenaamde: swaai indeks, balans telling, posturale stabiliteit indeks en die radius parameter. ’n Enkel en dubbel inverse slinger model van die liggaam is afgelei. Hierdie modelle maak gebruik van ’n pasiënt se kragplaat metings en sy liggaamlike parameters om die swaartepunt tydens beweging te bereken. Drie eksperimente, waarin 48 persone betrokke was, is gedoen. Die eksperimente is gedoen om die apparaat se bevoegdheid te bewys, die akkuraatheid van altwee inverse slinger modelle te toets en verder die balans van seevaarders op die Antarktiese navorsings en toevoer skip tydens rowwe see toestande te analiseer. Die toetse het bewys dat die inverse modelle gebruik kan word om die liggaam se swaartepunt te bereken. Die dubbel inverse slinger model resultate is wel akkurater as die enkel slinger model. Daar is bevind dat seevaarders van meer liggaamsbeweging en posturale reaksies gebruik moet maak om orent te bly tydens rowwe seetoestande. Verder word hul liggame blootgestel aan ’n wisselende grond reaksie krag wat kan lei tot die ontwikkeling van osteoarthritis en muskuloskeletale beserings. Die Dorsiflexometer is bewys as ’n aparaat wat wat akurate resultate lewer vir herhaalbare assesserings. Dit kan gebruik word om te onderskei tussen verskillende balans vermoëns.
Vrátil, Šimon. "Metodika pro kalibraci objemu nádob a nádrží." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231021.
Повний текст джерелаŠmétka, Miroslav. "Management kalibrací měřidel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229128.
Повний текст джерелаRezagholi, Mahmoud. "Cost-Efficient Designs for Assessing Work-Related Biomechanical Exposures." Doctoral thesis, Uppsala universitet, Institutionen för medicinska vetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-185526.
Повний текст джерелаLojková, Pavlína. "Návrh interní kalibrační laboratoře pro potřeby výrobního závodu v oblasti automotive." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417580.
Повний текст джерелаUher, Daniel. "Analýza procesu testování bezpečnostních prvků s airbagy v automobilech." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230175.
Повний текст джерелаFarahbakhsh, Reza. "Profiling professional and regular users on popular Internet services based on implementation of large scale Internet measurement tools." Thesis, Evry, Institut national des télécommunications, 2015. http://www.theses.fr/2015TELE0012/document.
Повний текст джерелаPopular Internet services are fundamentally shaping and reshaping traditional ways of people communication, thus having a major impact on their social life. Two of the very popular Internet services with this characteristic are Online Social Networks (OSNs) and Peer-to-Peer (P2P) systems. OSNs provide a virtual environment where people can share their information and interests as well as being in contact with other people. On the other hand, P2P systems, which are still one of the popular services with a large proportion of the whole Internet traffic, provide a golden opportunity for their customers to share different type of content including copyrighted content. Apart from the huge popularity of OSNs and P2P systems among regular users, they are being intensively used by professional players (big companies, politician, athletes, celebrities in case of OSNs and professional content publishers in case of P2P) in order to interact with people for different purposes (marketing campaigns, customer feedback, public reputation improvement, etc.). In this thesis, we characterize the behavior of regular and professional users in the two mentioned popular services (OSNs and P2P systems) in terms of publishing strategies, content consumption and behavioral analysis. To this end, five of our conducted studies are presented in this manuscript as follows: - “The evolution of multimedia contents", which presents a thorough analysis on the evolution of multimedia content available in BitTorrent by focusing on four relevant metrics across different content categories: content availability, content popularity, content size and user's feedback. - “The reaction of professional users to antipiracy actions", by examining the impact of two major antipiracy actions, the closure of Megaupload and the implementation of the French antipiracy law (HADOPI), on professional publishers behavior in the largest BitTorrent portal who are major providers of online copyrighted content. - “The amount of disclosed information on Facebook", by investigating the public exposure of Facebook users' profile attributes in a large dataset including half million regular users. - “Professional users Cross Posting Activity", by analyzing the publishing pattern of professional users which includes same information over three major OSNs namely Facebook, Google+ and Twitter. - “Professional Users' Strategies in OSNs", where we investigate the global strategy of professional users by sector (e.g., Cars companies, Clothing companies, Politician, etc.) over Facebook, Google+ and Twitter. The outcomes of this thesis provide an overall vision to understand some important behavioral aspects of different types of users on popular Internet services and these contributions can be used in various domains (e.g. marketing analysis and advertising campaign, etc.) and different parties can benefit from the results and the implemented methodologies such as ISPs and owners of the Services for their future planning or expansion of the current services as well as professional players to increase their success on social media
Kantová, Radka. "SNIŽOVÁNÍ HODNOTY STAVENIŠTNÍHO HLUKU POMOCÍ MODELOVÁNÍ VÝROBNÍHO PROSTORU STAVBY A ÚPRAV TECHNOLOGICKÝCH POSTUPŮ PŘI VÝSTAVBĚ." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-392280.
Повний текст джерелаGadotti, Inae Caroline. "Measurement properties of the sagittal craniocervical posture photogrammetry." Phd thesis, 2010. http://hdl.handle.net/10048/1179.
Повний текст джерелаRehabilitation Science
Petkov, John. "Measurement of body posture using multivariate statistical techniques." 2005. http://arrow.unisa.edu.au:8081/1959.8/46703.
Повний текст джерела黃柏峰. "Development of a Digital Cycling Posture Parameters Measurement System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/50600763233810221774.
Повний текст джерела建國科技大學
自動化工程系暨機電光系統研究所
99
A group of people who ardently like riding bike vigorously advocacy that biking sport is healthy for body and make more people join this fashion, leisurable and healthy sport. They often discuss the problem about comfortable, right riding posture and hurt to ones body in blog or provide professional knowledge on web site. Particularly, incorrect riding posture for long time often cause serious hurt to ones’joint and spine. Therefore, this paper aims at developing a digital cycling posture parameters measurement system capable of measuring the head tube height, the head tube angle, the stand tube height, the stand tube angle and the adjustable distance in the frame of a bike. Based on the computer measurement platform consists of PC and Labview software, the study integrates six axis driven by six stepping motors, load cells, amplifier and self-designed frame and employs Labview software to design control program and human interface, With the help of the digital cycling posture parameters measurement system, the cyclist can decide appropriate cycling posture parameters and choose suitable bicycle frame, meanwhile, the cycling injury can be prevent and the cycling fitness can be promoted.
Li, jung-jen, and 李忠真. "Design and Application of Conductive Elastic Belt Webbing for Posture Measurement." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/54874588395222578292.
Повний текст джерела逢甲大學
紡織工程所
98
In this study, coated-carbon polyamide filament and polyester (PET) fiber twisted into conductive yarn, and with Lycra??PET elastic yarn woven webbing structure made of conductive elastic webbing. And we study the relationship between webbing properties which include tensile-stress, strain-resistance, Angle-resistance and different structural parameters, such as content of conductive yarn, type of weft yarn, number of yarn through harness eye and different woven structure. Using conductive elastic webbing designed an angle sensor and set it on a sport wristlet for posture measurement on elbow. Analyzed the tensile-stress properties of webbing in different structural parameters, it decreased the content of conductive yarn in webbing and hysteresis work are decreased and more stable. Using strain-resistance measurement instrument analyze the relationship between strain and resistance, it showed good linear resistance response to strain, Using bending-resistance measurement instrument analyze the relationship between angle and resistance, it showed good second order resistance response to angle change. The friction between warp yarns was increase strain-resistance and bending-resistance stability. Using conductive elastic webbing designed an angle sensor and set it on a sport wristlet for posture measurement on elbow. It can measure the angle change of elbow immediately. It showed the conductive elastic webbing had good machinical and electric properties for posture measurement.
Shih, Pi-Min, and 施碧旻. "Measurement of work posture and Musculoskeletal disorders survey among nursing assistants." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/29774073410662019474.
Повний текст джерела中山醫學大學
職業安全衛生學系碩士班
104
Via surveys and videotaping of the working postures of caregivers on-the-job, this study investigates and evaluates the musculoskeletal injuries suffered by the caregivers. A total of 190 surveys were collected and images of caretakers from 10 working locations were acquired. Questions in the survey include basic information, job content, health condition, the usage of transferring assistive devices. The operating posture on-the-job was captured on video, which was analyzed by OWAS through coding analysis. Results revealed that prior to practicing the occupation of caregiver, 81.48% of the caregivers did not suffer from muscular or skeletal discomfort. However, 92.06% of the caregivers reported that after practicing this occupation, they experienced musculoskeletal discomfort. Within the past year, discomfort was most prevalent in the lower back/waist (69.47%), right shoulder (47.89%), left shoulder (44.21%), and the neck (37.89%) area. Of the different job contents, transferring (including on and off the bed) resulted in the heaviest burden on the body, was the most tiresome to perform, and was the most critical. Furthermore, transferring of patients was performed mostly with bare hands (79.23%), followed by the use of non-powered assistive devices (18.58%). Result from OWAS analysis revealed that the most repetitive body posture employed were head/neck forward leaning, back forward bending, back bending and twisting, standing and bending on two straight legs, and standing and bending on one straight leg. The OWAS score of these postures is AC2, which is considered significantly harmful. Of all working postures, those with scores of AC2 and AC3 account for 44.50% of all postures scored AC1 to AC4. Thus, immediate improvements are necessary. During the caregiving process, the caregivers most often adopted back forward bending and twisting postures. It is thus suggested that for work postures, the upper body should be kept upright and lowering of the head or bending of the waist should be avoided. Body postures that reduce the workload on the head/neck and waist should be used. Also, adequate resting time should be allocated and carrying items using bare hands or transferring the person being taken care of should be prevented in order to reduce the hazardous risk of musculoskeletal damage.
Lee, Shao-Nung, and 李紹農. "Development of a Portable Device for Dynamic Measurement of Head Posture." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/27412633153308072804.
Повний текст джерела逢甲大學
生醫資訊暨生醫工程碩士學程
101
The main purpose of this study is to obtain a continuous signal of the human head posture by analyzing the measured inertial measurement unit (IMU) signals, and to alert the user of his/her poor posture. By achieving the effect of passive posture correction, the long-term poor posture of the cervical vertebrae area can be prevented. The IMU is a device that obtains its signal by combining measurements from gyroscope, accelerometer, and magnetometer. Because IMU is widely used in unmanned flight, it can also accurately learn the status of head rotation. Through the resulting graph, we can obtain the degree of the curvature of the cervical vertebrae and the position of the head. In the end, it shows the pitch and roll of the head and displays the signal in various 2D pointer diagrams. The proper posture is defined by a virtual vertical line from the earlobe through the shoulder to the ground. When the head position is out of range, the system alerts the user to notify the user of their bad posture, after which the user can then improve their posture to the proper posture.
Jiang, Chang-han, and 江長翰. "Design and Application of Posture Measurement System Using a Textile Sensor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/74542516554986743544.
Повний текст джерелаHung, Chia-Hung, and 洪嘉鴻. "A Posture Measurement Approach for Robot Arms by RGB-D Cameras." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/yu5p83.
Повний текст джерела國立中山大學
電機工程學系研究所
106
Robot arms bring a lot of conveniences to the industries in the recent years. However, there aren’t any functions to detect collision automatically in most robot arms at present. As the rates of robot arm applications are increasing, the density which humans work with robot arms is rising. Some important issues of safety should be concerned. Therefore, the objective of this thesis is using external observations to propose a method of geometric shape recognition which could find cylindrical parameters from point cloud data containing incompletely geometric shapes. This thesis uses Universal Robots 5 (UR5) for the research target to measure cylindrical parameters of three UR5 links and then compute three angles of joints which are corresponding to the UR5 links. The content of this thesis can be simply divided into two parts. The first part is image noise filtering, and the second part is image processing. At the beginning, images with point cloud data including the posture of the five UR5 links are captured respectively by two 3D depth sensors and Point Cloud Library (PCL). Then, images captured by the two 3D depth sensors are combined into an image. The first part is to separate the point cloud data from the combined images and use Gaussian noise filtering to obtain point cloud data of three links. The second part is to use the algorithm of vii random sample consensus (RANSAC) to segment point cloud data which consist with the ideally cylindrical model and get cylindrical parameters. Besides, the three angles of joints which are corresponding to the UR5 links are computed through the cylindrical parameters. Finally, the feasibility of the method is verified by comparing the three angles displayed on the UR5 system to achieve the purpose of posture measurement and benefits the research to detect collision automatically in the future.