Dissertations / Theses on the topic 'Spinal loads'
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Dennis, Gary. "Spinal Loads in Team Lifting." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/367181.
Full textThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Physiotherapy and Exercise Science
Griffith Health
Full Text
Boocock, Mark Graham. "An ergonomic appraisal of the mechanical loads imposed on the human spinal column during impact landing." Thesis, Liverpool John Moores University, 1992. http://researchonline.ljmu.ac.uk/4942/.
Full textWang, Xueke. "Does visual access when lifting unstable objects affect the biomechanical loads experienced by the spine and shoulders." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492722421190945.
Full textJaafar, Kamal Rachid. "Spiral shear reinforcement for concrete structures under static and seismic loads." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.616166.
Full textWang, Tianjiao. "Feasibility for spinal muscles creating pure axial compressive load or follower load in the lumbar spine in 3-D postures." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1790.
Full textBakker, E. W. P. "Spinal mechanical load. A risk factor for non-specific low back pain." [S.l.] : Rotterdam : [The Author] ; Erasmus University [Host], 2008. http://hdl.handle.net/1765/14715.
Full textMokwa, Robert L. "Investigation of the Resistance of Pile Caps to Lateral Loading." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/29152.
Full textPh. D.
Richard, Leeland. "Spiral Welded Pipe Piles For Structures In Southeastern Louisiana." ScholarWorks@UNO, 2010. http://scholarworks.uno.edu/td/1257.
Full textRamsey, Todd R. "The Effects of Load-Positioning Material Handling Equipment on Spinal Loading During Manual Handling of Bulk Bags." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368027435.
Full textUsman, Irfan-ur-rab. "Rotary-axial spindle design for large load precision machining applications." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/30163.
Full textRINDER, MARIA M. "Three-Dimensional Dynamic Biomechanical Model for Lifting and Lowering Activities: Systematic Review, Critical Appraisal and Model Development." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1179430261.
Full textSugyarto, Eddy. "The Kinematic Study, Geometry Generation, and Load Distribution Analysis of Spiral Bevel and Hypoid Gears." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1392985391.
Full textErkilic, Erdem. "A Model to Predict Pocketing Power Losses in Spiral Bevel and Hypoid Gears." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616576.
Full textSsemakula, Hamzah. "Minimization of stock weight during close-die forging of a spindle." Högskolan Dalarna, Materialteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:du-12555.
Full textSong, Ino. "The effect of variations in the strength and type of spinal muscles on the stabilization of the lumbar spine via follower compressive load mechanism." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5638.
Full textYantzer, Brenda Kay. "Torsion-Induced Pressure Distribution Changes in Human Intervertebral Discs: an In Vitro Study." [Tampa, Fla] : University of South Florida, 2005. http://purl.fcla.edu/usf/dc/et/SFE0001397.
Full textПестунов, В. М., В. В. Свяцький, Л. П. Свяцька, V. Pestunov, V. Sviatskyi, and L. Sviatska. "Імітація силового навантаження на шпиндель." Thesis, Publishing House „Education and science” s.r.o, 2009. http://dspace.kntu.kr.ua/jspui/handle/123456789/6514.
Full textNedbal, David. "Návrh manuální pravoúhlé frézovací hlavy určené pro technologické operace na středně těžkých obrobcích." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382413.
Full textRoulois, Guillaume. "Etude et simulation du bruit des boîtes de transmission principales d'hélicoptères." Thesis, Dijon, 2011. http://www.theses.fr/2011DIJOS105.
Full textMain gearbox (MGB) is one of the main noise sources in helicopter cabinsand it strongly penalizes acoustic comfort of crews and passengers. In order to reduce theimpact of this source, acoustic and vibration mechanisms of gearboxes have to be understoodand simulated during the development phases. By this way, MGB vibroacoustic behaviourcould be improved by design, thus reducing cost, additional weight and integration difficultiesof sound-proofing solutions. This work presents helicopters MGB and the noise they generate.It also presents our developments regarding the modelling of MGB dynamic behaviour fornoise computation. We have developed a finite elements code allowing to conduct parametricstudies to tune the gearboxes design in early development phases. Our model is able tocompute dynamic loads on bearings of any transmission composed of several cylindrical andspiral bevel gears. At last, we analyse acoustic and vibration measurements done around twoMGB for several conditions of torque and speed. These measurements allow to betterunderstand MGB vibroacoustic behaviour and to confirm some trends observed with ourmodel
Pavelka, Radomil. "Pohon vřeten pětivřetenového soustružnického automatu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231522.
Full textCabral, Fábio Aparecido Barbosa. "Avaliação da carga viral plasmática do HTLV-1 em indivíduos assintomáticos e desenvolvendo a mielopatia associada ao HTLV-1/paraparesia espástica tropical (HAM/TSP)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-06102010-171847/.
Full textThe human T-cell lymphotropic virus type1 (HTLV-1) is responsible for some pathologies such as HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and Adult T-cell Leukemia/ Lymphoma (ATL) among others. Its ways of replication so far presented do not support the hypothesis of a viremic stage. In this study, the detection of the plasmatic viral load was performed by real time PCR and Nested PCR in 190 samples from HTLV-1 infected individuals (Either Asymptomatic or HAM/TSP cases) following up at Instituto de Infectologia Emílio Ribas. 12 individuals (8%) tested by Real time PCR (n= 150) and 6 individuals (18%) tested by Nested PCR (n= 33, given that 7 samples were excluded from the analysis) presented detectable HTLV-1 RNA in the plasma. In conclusion, it was possible to indentify HTLV-1 plasmatic RNA in asymptomatic carriers as well as in HAM/TSP cases. This detection opens new possibilities of discussion about HTLV-1 replication and transmission pathways, suggesting further investigation for clarifying this matter.
Ching-Fang, Chang, and 張靜芳. "THE SPINAL CURVATUREUNDER VARIOUS LOADS IN DEADLIFT." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/67554606874059916174.
Full text國立臺灣體育學院
體育研究所
93
ABSTRACT The purposes of this study were to estimate the deformation of spinal curve and to evaluate the strategies of weight-lifting in deadlift with different loading. Four males (age: 26.8 ± 3.3 years, height: 162 ± 5 cm, weight: 58.8 ± 5.8 kg) and four females (age: 21.5 ± 1.8 years, height: 162 ± 4 cm, weight: 61.3 ± 6.5 kg) who are national powerlifting athletes were recruited in this study. Each subject was asked to perform the deadlift in the motion laboratory with 30%, 50%, 70%, and 90% of his/her peak performance of deadlift. The VICON 612 motion analysis system was used to record the trajectories of reflective markers that were placed on the skin surface of spinal landmark. The information of landmarks of spine was used to calculate the displacements and the curvature angles of the spine. Repeated measures one-way ANVOA and Duncan post hoc tests were used to test the statistical differences for kinematical parameters with the alpha level .05. The results showed that the displacements of the 7th cervical spine (C7) and the 6th thoracic spine (T6) in the loading of 90% of the peak performance of deadlift and the inclination of trunk in saggittal plane were significantly greater than that in 30% and 50% of loading of the peak performance during the stage of prior-movement. The results of Kyphosis angle showed that the range of motion in the loading of 90% of the peak performance was significantly greater than that in the loading of 30% and 50% of the peak performance during the stage of prior-movement, the stage of movement, and the total stage of movement. It indicated that the powerlifting athletes increased the displacement of trunk and the angle of kyphosis posteriorly during the stage of prior-movement for the treatment of increase loading. Under the situation of larger loading, the powerlifting athletes adopted the strategy of pre-acted upper trunk and held the angle of kyphosis to perform the movement of deadlift.
Diederich, Jennifer Marie. "Estimate of muscle contribution to spinal loads during continuous passive motion for low back pain." 2005. http://edissertations.library.swmed.edu/pdf/DiederichJ051105/DiederichJennifer.pdf.
Full textBeaucage-Gauvreau, Erica. "Brace for it: assessing lumbar spinal loads for a braced arm-to-thigh lifting and bending technique using a musculoskeletal modelling approach." Thesis, 2019. http://hdl.handle.net/2440/120550.
Full textThesis (Ph.D.) -- University of Adelaide, School of Mechanical Engineering, 2019
Choi, Hyeonki. "Muscle forces and spinal loads in the human neck an EMG experiment and a comparison of three modeling methods /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36554082.html.
Full textTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 56-67).
Zheng, Qi-Cong, and 鄭琦聰. "Dynamic Analysis of High Speed Spindle with Axial Loads." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/26209044348668600478.
Full textPark, Joon-Hyuk. "Wearable Torso Exoskeletons for Human Load Carriage and Correction of Spinal Deformities." Thesis, 2016. https://doi.org/10.7916/D81V5F5G.
Full textChen, Y. C., and 陳雅娟. "The Spiral Grid Routing Protocol for Load Balancing in Wireless Sensor Network." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/30079047447724372952.
Full text中華大學
資訊工程學系(所)
97
In recent years, “Network Grid” technology has been dramatically improved. New techniques are keeping revealed it gradually becomes the new generation of internet. Also, with the developing of wireless network communication technology, “Network Grid” technology has made significant contribution on resource management. Such as Remote Sensing, Automatic Data Acquisitions, Special Species Protection are all become reality. The administrators now do not have to travel a long distance to investigate the field. It also saves a lot of time and budget to get the data they want. First, in the sensor network, spread many sensor nodes over the area to acquire the environmental data. Then return the data to Sink or user via the wireless data acquirer through wireless network. Because the first concern of sensor hardware design are low cost, low profile, low battery power consumption. Since the battery of sensor is not easy to replaceable, efficiently power management is a very challenge research topic. The communication and sensing activity within the network will drain a lot of energy inside the sensor. To save the energy and extend the life time of network, one can reduce the redundancy overlay coverage of detection area, select robust and fast Routing Protocol, and reduce the impact of Duplicate Data. Recently, there are many routing protocol methods focus on data communication have been proposed by academic researchers. This thesis also proposed a new method which is called “Spiral Grid Routing Protocol, SGR”. The main purpose is to let the grids moving like a spiral curves to change working sensors then distribute the power consumption over the other sensors. So Loading Balance will be improved. Better performance has been obtained through experimental result.
Hung, Yu-Bin, and 洪裕賓. "Identification of dynamic load for a built-in motor spindle." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/95428109761233540728.
Full text國立成功大學
機械工程學系碩博士班
93
The thesis built the dynamic electron-mechanical analytical model to analysis the speed and current response for a built-in motor spindle under the dynamic milling load. In addition, it is also applied to estimate the dynamic milling load with the voltage, current and spindle speed. The model integrated the induction motor dynamic subsystem model and milling load model. After building the system model, the motor’s electronics parameters, spindle inertial and cutting constant can be identified from the experiments. Then, the nonlinear system model is applied to predict the current, power and speed of the spindle motor with the numerical method. Besides, it is developed to estimate the milling dynamic load when the current, voltage, and speed are captured. Due to the difficulty of the complex nonlinear system to realized the system characteristics. The simple model is built to explain the relation between the input harmonic force and output harmonic speed. The relation between the current and milling load is also estimated by the spectrum convolution theorem. Finally, the feasibility of the theorem is verified by the milling experiments.
Wang, Ming-Jheng, and 王明正. "Tool Wear Fuzzy Detection Based on the Machine Tool's Spindle Load." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/11351979308896545612.
Full text逢甲大學
機械與電腦輔助工程學系
105
In the present automation technology development, artificial intelligence is having a huge impact on manufacturing throughout the world. Monitoring abnormal condition during machining process an important inspection, but during the machining, the tool wear will affect the quality of the workpiece and the production costs and efficiency. This study is based on the detection of tool wear through an indirect monitoring on the machine spindle motor current load. The milling experiment was first carried out based on the spindle load, the spindle load was measured under different cutting conditions, the spindle load was then converted into power, the cutting power was obtained, and the X, Y and Z cutting forces were tested by the dynamometer. The main cutting force acting on the tool is calculated, and the membership degree of the cutting force of the spindle is then analyzed through triangular membership function. The wear interval of the tool is determined by fuzzy monitoring. Finally, the feasibility and validity this study is obtained, for easy set-up and other high cost detection method, this study may be another option for tool wear detection.
Wang, Chuen-Ren, and 王春仁. "Dynamic Analysis of a Rotating Shaft with Elastic Bearing Subjected to a Harmonic Moving Spiral Load." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/99920845929162148202.
Full text國立中正大學
機械工程所
98
This study mainly studies which the dynamic response of a rotating shaft subjected to the harmonic effect of the moving spiral load. This study regard the rotating shaft as Rayleigh beam and is used the global assumed mode method (GAMM) which simulates the dynamic deflection of a rotating shaft, and the two end support is simulated to the springs, this study propose the distribution of a spiral load is mainly derived from the type of the arrangement of the steel ball between the nut and ball screw, and consider this load subjected to the effect of the different swing frequency. Through the Lagargian Approach is derived the equation of motion, then the dynamic response of a rotating shaft is solved by the Runge-Kutta method, and discuss the effect of the dynamic response of a rotating shaft with respect to the different moving load speed and different rotational speed of a shaft, meanwhile, this study also discuss the dynamic response of a rotating shaft subjected to different swing frequency of the moving and rotating concentrated load, and compare result of moving spiral load each other. The results show that the maximum lateral deflection of a rotating shaft subjected to the harmonic spiral load is smaller between triple and quadruple than the harmonic moving and rotating concentrated load, when the bearing stiffness is smaller than 10^11 (N/m) and 10^8 (N/m), the two end displacement of a rotating shaft of beta=0.15 and beta=0.03 subjected to the moving and rotating concentrated load and the moving spiral load has obvious increase, respectively. In addition, the different moving speed of the concentrated load and spiral load affect the dynamic response apparently, the different rotating speed of a shaft has not almost affect the dynamic response of a rotating shaft, and the effect of lateral dynamic response subjected the variable magnitude of a swing angle is more smaller than the axial dynamic response.
Тенета, Яна Володимірівна. "Дослідження навантаження на головну лінію прокатного стана «Блюмінг»." Магістерська робота, 2021. https://dspace.znu.edu.ua/jspui/handle/12345/5882.
Full textUA : В роботі проведено огляд і аналіз науково-технічних рішень підвищення навантажувальної здатності вузлів та деталей головної лінії обтискного прокатного стана. Проведено розрахунки навантажень, що діють на деталі привода валків. Досліджено роботу універсальних шпинделів в умовах критичних навантажень. Запропоновано шляхи збільшення їх ресурсу.
EN : The paper provides an overview and analysis of scientific and technical solutions for increasing the load capacity of units and parts of the main line of the blooming mill. Calculations of the loads acting on the parts of the roll drive have been made. The work of universal spindles under critical loads has been investigated. Ways to increase their resource are proposed.
HANDIKA, NURAZIZ, and NURAZIZ HANDIKA. "Shear Behavior of Tied and Multi-Spiral Columns with High Strength Steel and Concrete Under Low Axial Load." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/vhpe9p.
Full text國立臺灣科技大學
營建工程系
100
ABSTRACT The development of High Strength Concrete (HSC) and High Strength Steel (HSS) facilitate the realization of high-rise building especially in seismic region to resist earthquake excitation. Innovative multi-spiral shear reinforcement which is designed for square cross section column offers technical and cost advantages comparing to conventional tied column stirrup. This research has objective to recognize the shear behavior of two types of stirrups with high strength steel and concrete under low axial load. The square hoops columns and multi-spiral columns are tested under 20% and 10% axial load ratio, respectively. Concrete compressive strength (70 MPa and 100 MPa) and spacing of the transverse reinforcement are two parameters that will be examined. Longitudinal and transversal reinforcements with specified yield strengths of 685 MPa and 785 MPa, respectively, are considered. Critical crack angle; shear strain and curvature; stress of transverse reinforcement; effect of axial compression load of six large-scale columns will be explained. Test results show that the maximum strength of columns appears before the yielding of stirrups. Thus, stress at transverse reinforcement that can be predicted from drift ratio and stress at hoops relationship derived from test result becomes important as the limitation for design calculation. Moreover, smaller critical crack angle, stiffer column and higher lateral strength will be occurred from higher axial load application. Current codes provisions in shear strength provide the conservative estimation as 45 degrees of crack angle applied. On the other hand, models proposed by researchers overestimate the measured strength.
MENDLOVÁ, Olga. "Redcord na vozíku." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-187931.
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