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Walker, Daniel R. "The Organization and Training of Joint Task Forces." Maxwell AFB, Ala. : Air University Research Coordinator Office, 1998. http://www.au.af.mil/au/database/research/ay1995/saas/walkerdr.htm.
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Thesis (M.M.A.S.)--School of Advanced Airpower Studies, 1995.Subject: Examines the organization, training, doctrine, and experience of joint task forces within each of the five geographically tasked unified commands. Cover page date: June 1995. Vita. Includes bibliographical references.
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Whitlock, Joseph E. "Modeling obstacles and engineer forces in stochastic joint theater models." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA305967.
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Allen, James Brandon. "Estimating Uncertainties in the Joint Reaction Forces of Construction Machinery." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/33046.
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In this study we investigate the propagation of uncertainties in the input forces through a mechanical system. The system of interest was a wheel loader, but the methodology developed can be applied to any multibody systems. The modeling technique implemented focused on efficiently modeling stochastic systems for which the equations of motion are not available. The analysis targeted the reaction forces in joints of interest.
The modeling approach developed in this thesis builds a foundation for determining the uncertainties in a Caterpillar 980G II wheel loader. The study begins with constructing a simple multibody deterministic system. This simple mechanism is modeled using differential algebraic equations in Matlab. Next, the model is compared with the CAD model constructed in ProMechanica. The stochastic model of the simple mechanism is then developed using a Monte Carlo approach and a Linear/Quadratic transformation method. The Collocation Method was developed for the simple case study for both Matlab and ProMechanica models.
Thus, after the Collocation Method was validated on the simple case study, the method was applied to the full 980G II wheel loader in the CAD model in ProMechanica.
This study developed and implemented an efficient computational method to propagate computational method to propagate uncertainties through â black-boxâ models of mechanical systems. The method was also proved to be reliable and easier to implement than traditional methods.
Master of Science
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Lyons, Percie Jewell. "Effects of Hip Osteoarthritis on Lower Extremity Joint Contact Forces." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104968.
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People with osteoarthritis (OA) suffer from joint degeneration and pain as well as difficulty performing daily activities. Joint contact forces (JCF) are important for understanding individual joint loading, however, these contact force cannot be directly measured without instrumented implants. Musculoskeletal modeling is a tool for estimating JCF without the need for surgery. The results from these models can be very different due to different approaches used in the development of a model that was used for simulation. Therefore, the first purpose of this study was to develop and validate a musculoskeletal model in which lower extremity JCF were calculated at the hip, knee, and ankle in 10 participants with hip OA (H-OA) and 10 healthy control participants using OpenSim 4.0 [simtk.org, 23]. The generic gait2392 model was scaled to participant demographics, then the inverse kinematics (IK) solution and kinetic data were input into the Residual Reduction Algorithm (RRA) to reduce modeling errors. Kinematic solutions from RRA were used in the Computed Muscle Control (CMC) tool to compute muscle forces, then JCF were estimated using the Joint Reaction Analysis tool. Validation included JCF comparisons to published data of similar participant samples during level walking, and movement simulation quality was assessed with residual forces and moments applied at the pelvis, joint reserve actuators, and kinematic tracking errors. The computed JCFs were similar to the overall trends of published JCF results from similar participant samples, however the values of the computed JCFs were anywhere from 0.5 times body weight (BW) to 3BW larger than those in published studies. Simulation quality assessment resulted in low residual forces and moments, and low tracking errors. Most of the reserve actuators were small as well, besides pelvis rotation and hip rotation. The computed JCF were then used in the second portion of this study to determine the effect of group and side on JCF during both the weight acceptance and push-off phases of level walking. It was determined that there was a significant difference in the knee and ankle JCF during the weight acceptance portion of stance phase and at all joints during the push-off phase when comparing the H-OA and control groups on the affected limb. A significant interaction between group and limb was found for the peak hip JCF timing (% stance) during the push-off portion of the stance phase (p=0.009). These results demonstrate that H-OA participants experience an earlier peak hip JCF during propulsion on their affected limb. Based on previous research in OA that has examined spatiotemporal measures, this finding suggests that H-OA participants may use step or stride length changes as a strategy to decrease or limit pain and loading on the affected limb. Knowledge of potential JCF differences in H-OA participants, such as timing of the peaks in either portion of the stance phase, could provide useful insight to clinicians and therapists to make decisions on how to proceed with treatment or rehabilitation programs.Master of Science
People with osteoarthritis suffer from joint degeneration and pain as well as difficulty performing daily activities, like walking. It is important to understand the forces and loading within individual joints. Musculoskeletal modeling is one way that researchers can estimate these joint contact forces (JCF) without needing a joint replacement implant that can measure these forces. When it comes to modeling simulations, there is a wide variety of results. Therefore, the first purpose of this study was to develop and validate a musculoskeletal model in which JCFs were calculated at the hip, knee, and ankle in 10 participants with hip osteoarthritis and 10 healthy adults. Validation of the model was completed through a comparison between computed results and published data of similar participant samples during level walking. The computed results were similar to the overall trends of published JCF results, however the numerical values themselves were larger than those in published studies. The computed JCFs were then used in the second portion of this study to determine how the two groups and limbs differ during level walking. There was a significant difference in the knee and ankle JCF during the first half of the stance phase and in all joints during the second half of stance when comparing the two groups. The hip osteoarthritis participants also experience an earlier peak hip JCF during the second half of stance phase on their affected limb. This finding suggests that hip osteoarthritis participants may change the way they take a step as a strategy to decrease or limit pain and loading on the affected limb. Knowledge of potential JCF differences, such as timing of the peaks in either portion of the stance phase, could provide useful insight to clinicians and therapists to make decisions on how to proceed with treatment or rehabilitation programs.
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Stansfield, Benedict William. "Hip joint forces : hip joint forces of 40 to 60 year old normal and total hip replacement subjects during walking and stair, ramp and camber negotiation." Thesis, University of Strathclyde, 2000. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21141.
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To design and test hip joint prosthesis it is essential to know the magnitude and character of forces that may be applied to them in-vivo. For this thesis the hip joint forces of 40 to 60 year old subjects (five male and six female normal subjects and five male hip replacement) were studied. To allow the calculation of hip joint forces data from three-dimensional motion analysis and force plates were applied to a model of the lower limb. The model included the hip, knee and talocrural joints with 3 hip, 8 knee and 8 ankle joint forces, 4 knee ligaments and 47 muscle elements. A double linear optimisation technique (first minimising the maximum muscle stress then minimising the sum of the forces in the force bearing structures) was applied to solve the redundancy problem of force distribution in the muscles. Walking and stair, ramp and camber negotiation were characterised. Ground reaction forces, joint angles, intersegmental forces and moments, joint and ligament forces and muscle forces are presented. Muscle forces predictions were in general agreement with those in the literature, although the model was not capable of correctly distributing forces in the vasti or in the ankle only muscles as patella and talocalcaneonavicular joint equilibria were not included. In general, hip replacement subjects demonstrated lower hip joint forces than normal subjects. The range of maximum resultant hip joint forces for all activities was 3.04 to 11.85 for male normal subjects, 4.18 to 11.50 for female normal subjects, 3.73 to 6.81 and 2.21 to 8.77 for male hip replacement subjects for their natural and replaced sides respectively. The results presented define in three dimensions the hip joint forces in both pelvic and femoral axes systems and thus characterise the probable in-vivo requirements of hip joint prostheses during performance of the activities studied.
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Emanuel, Taylor C. "Gunship Diplomacy : carrier based close air support for joint expeditionary forces." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/30812.
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This study examines whether current and future strategy, doctrine, and programmed systems are suitable to perform fire support and specifically, close air support (CAS)and close air support/troops-in-contact (CAS/TIC) missions for joint expeditionary warfare. Naval forces will provide the "enabling" power for this new come-as-you-are environment. To offset reductions in organic fire support, more frequent and sustained application of CAS and CAS/TIC will be required by joint expeditionary forces. To comparatively analyze selected CAS platforms, the study uses four air-to-ground measures of merit (MOM); (1) target detection/recognition; (2) lethality; (3) survivability; and (4) combat persistence. The results paint and bleak picture of current capability. Therefore, a Carrier-Based Gunship (CBG) concept is presented to fill this void. The concept is more important than the selection of one particular platform. For illustrative purposes, three CBG candidates were evaluated using AC-130 gunship systems and employment as a guide coupled with the four MOM as the baseline. The CBG would be situated on a forward-deployed carrier, close enough to the objective area to provide sustained CAS/TIC support for joint expeditionary forces.
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Benoit, Daniel L. "Motion analysis of the knee : kinematic artifacts, EMG normalisation and joint forces /." Stockholm, 2005. http://diss.kib.ki.se/2005/91-7140-357-4/.
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Charlton, Iain W. "A model for the prediction of the forces at the glenohumeral joint." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407867.
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Lloyd, John P. "Developing a Joint Engineer Headquarters for the JTF Commander." Ft. Belvoir : Defense Technical Information Center, 2007. http://handle.dtic.mil/100.2/ADA468869.
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Anisuzzaman, Muhammad. "Dynamics analysis of anterior-posterior forces in the knee joint during normal walking." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=83849.
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The temporal pattern of the anterior-posterior force acting at the human knee joint during walking is determined in the present study. A three-dimensional anatomically based dynamics model, which includes the bones and the muscles working across the knee joint, is developed and the redundant inverse dynamics problem is formulated. The muscle redundancy is resolved by reducing the number of unknowns based on certain logical assumptions. In addition, a parametric study is conducted to study the effect of antagonistic muscle activity on the joint force. The developed dynamics model is then exercised to calculate the anterior-posterior knee joint force for normal and ACL-deficient knees. The anterior-posterior knee joint force obtained from the normal knee analysis indicates that a posterior force is present for the majority of the gait cycle with a maximum force of 0.25 BW (body weight), whereas anterior force acts shortly after the beginning of the stance phase reaching a maximum of 0.4 BW. Among the muscles working across the knee joint, the quadriceps, gastrocnemius and the tensor fascia latae produce an anterior force at the knee joint whereas the hamstrings, sartorius and the graclilis generate a posterior force. For the ACL-deficient knee, the results reveal that it is possible for patients to adapt to the injury by changing their walking pattern to avoid or minimize quadriceps activation in the stance phase, thus reducing or entirely avoiding the anterior force at the knee joint. The study also reveals that it is necessary to strengthen the hamstring muscles for the rehabilitation of the ACL-deficient knee patients to reduce the anterior force at the knee joint.
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Nelson, Luke Paul. "Forces affecting prospects for joint land use planning services in Boone County, Iowa." [Ames, Iowa : Iowa State University], 2008.
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Olechnowicz, Stephen M. "Identification and evaluation of organizational structures and measures for analysis of Joint Task Forces." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA371714.
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Thesis (M.S. in Operations Research) Naval Postgraduate School, December 1999."December 1999". Thesis advisor(s): William G. Kemple. Includes bibliographical references (p. 131-132). Also available online.
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Shah, Shah Syed Bahadur. "Analysis of Block Stability and Evaluating Stiffness Properties." Thesis, KTH, Byggvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-57983.
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Block stability is common and has to be studied in detail for designing tunnels. Stability of block depends upon the shape and size of the blocks, stresses around the block and factors such as clamping forces and the ratio between joint stiffness. These factors are studied in detail and are the main objective of this thesis. In this thesis influence of loading and unloading of blocks on joint stiffness and thus on ultimate pullout force are analyzed. Normal stress on the joint plane is linked with shear stiffness of the joint and relaxation of forces. Changes of forces were considered to estimate joint stiffness and ultimate pullout force using new methods in the present thesis. First method takes into account changing clamping forces considering stiffness ratio constant (Crawford and Bray). The second method was developed in which the ratio between normal and shear stiffness was taken as a function of normal stress (Bagheri and Stille). In third method, gradually pullout force is increased which changes the normal stress and joint stiffness. The lower limit of joint stiffness gives a very conservative design. So a stiffness value based on the average of lower and upper limit of normal force has also been considered. A comparison between the new methods and the previous method proposed by Crawford and Bray which considers a constant ratio of normal and shear stiffness and constant clamping forces shows that Crawford and Bray’s solution overestimates the pullout forces hence the design is unsafe. It was observed that stiffness ratio is an important factor for estimating required rock support and safety.
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McGovern, Mark, Jeffrey D. Mayor, and Joseph Symmes. "An operational utility assessment [electronic resource]: measuring the effectiveness of the Joint Concept Technology Demonstration (JCTD), Joint Forces Protection Advance Security System (JFPASS)." Monterey California. Naval Postgraduate School, 2008. http://hdl.handle.net/10945/10312.
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MBA Professional ReportPlanning modern military operations requires an accurate intelligence assessment of potential threats, combined with a detailed assessment of the physical theater of operations. This information can then be combined with equipment and manpower resources to set up a logistically supportable operation that mitigates as much of the enemy threat as possible. Given such a daunting challenge, military planners often turn to intelligent software agents to support their efforts. The success of the mission often hinges on the accuracy of these plans and the integrity of the security umbrella provided. The purpose of this project is to provide a comprehensive assessment of the Joint Forces Protection Advanced Security System (JFPASS) Joint Concept Technology Demonstration (JCTD) to better meet forceprotection needs. It will also address the adaptability of this technology to an ever-changing enemy threat by the use of intelligent software. This project will collect and analyze data pertaining to the research, development, testing, and effectiveness of the JFPASS and develop an operational effectiveness model to quantify overall system performance.
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McGovern, Mark Symmes Joseph Mayor Jeffrey. "An operational utility assessment [electronic resource] : measuring the effectiveness of the Joint Concept Technology Demonstration (JCTD), Joint Forces Protection Advance Security System (JFPASS) /." Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/MBAPR/2008/Dec/08Dec%5FMcGovern%5FMBA.pdf.
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"Submitted in partial fulfillment of the requirements for the degree of Master of Business Administration from the Naval Postgraduate School, December 2008."Advisor(s): Nussbaum, Daniel ; Franck, Raymond. "December 2008." "MBA professional report"--Cover. Description based on title screen as viewed on January 28, 2009. Includes bibliographical references (p. 81-86). Also available in print.
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Fitzsimmons, Anna. "Hip joint forces in hip replacement patients and normal subjects during activities of daily living." Thesis, University of Strathclyde, 1995. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21386.
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A high number of revision hip replacement operations are currently performed due to loosening of the primary implant. The loading imposed on the prosthetic joint and its fixation mechanisms may be one of the many factors contributing to the loosening process. Previous work to determine hip joint loading has concentrated on gait, stair negotiation and rising from a chair. However, since patients often comment on the difficulty of getting into and out of a car and bath, these activities are also included in the current project. The 3 orthogonal components of hip joint force have been calculated for 16 postoperative hip replacement patients between one and two years after surgery and also for 10 age-matched normals. A biomechanical model of the lower limb was developed including 37 muscle elements. Algorithms were incorporated to correct for curved muscle paths, providing realistic muscle moment arms with changing joint angle configuration. An optimization routine which minimizes the o verall maximum muscle stress was incorporated to determine muscle forces which were then used in the calculation of joint force. The model utilizes anatomical muscle and bone data, kinematics measured using a 6 camera Vicon motion analysis system and ground reaction forces measured using force platforms. In validity tests, the predicted muscle activity patterns for normal subjects were found to be consistent with published EMG data for most muscles. The mean peak resultant hip joint force of 3.8 times body weight calculated for the patients during gait at 1.01 m/s was consistent with the results published for patients with instrumented hip prostheses at a measurement time of more than 12 months after surgery. The maximum mean peak resultant hip joint force determined for patients was 5 times body weight, calculated at the left hip when getting out of the passenger side of a right hand drive car. A simple calculation of torsional moment about the stem of the femoral component during this and other activities showed it to be close to or to exceed the experimentally determined limits of torsional strength of implant fixations, reported in the literature. The maximum mean peak resultant hip joint force calculated for normals was 6.3 times body weight, determined at the left hip on getting into the passenger side of a right hand drive car. It is suggested that car entry and exit and other activities should be performed in safer styles rid that the results of this thesis should be incorporated into the design and testing of hip prostheses.
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Karvik, Emma, and Kajsa Skönby. "Joining Forces : A case study on how the dynamics of strategic alliances unfold in a public-private joint venture." Thesis, Umeå universitet, Företagsekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160717.
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As competitive advantage is becoming more difficult to reach in the intense business world of today, many companies are turning towards cooperation to enhance their performance. A common way to achieve cooperation between firms has been through strategic alliances, where firms can fill their gaps in terms of resources and create common strategies for success. When creating a common legal organization, it is usually done through a joint venture. Joint ventures are often used as a way for private firms to expand internationally. However, lately it is not only the private organizations that are facing this competitive business climate, but the historical view on the public sector as being inefficient and rather bureaucratic in its coordination of business development, has also put an emphasis on markets and competition in the public sector. This has lately resulted in joining forces with the private sector, to create public-private joint ventures. As the literature published on the nature of these public-joint venture is still limited to few studies and cases, this called for further exploration of the phenomena. Thus, this study aimed at exploring the dynamics of strategic alliances in a public-private joint venture. More specifically, this was done by looking at a public-private joint venture consisting of a municipality and the enterprise, using the case of Tillväxt Lidköping AB. By exploring these dynamics, the research wished to gain insight into the motives and objectives of why firms enter, stay and leave a public-private joint venture, as well as success factors and risk of failures. This was done through answering the following research question: How do the dynamics of strategic alliances unfold in a public-private joint venture? Through a qualitative case study with data collected from semi-structured interviews, this study operated inductively but in constant comparison with existent literature to formulate a model of the dynamics of strategic alliance in a public-private joint venture. The model includes a process starting with the motives and objectives to why companies and individuals engage in a public-private joint venture. After, influenced by the motives and objectives, the actual operation of the public-private joint venture including membership, strategies and management is presented, to end the process with impact of growth and cooperation. The practical contributions of this study will help managers of public-private joint venture with tools, such as how to avoid certain pitfalls and fill crucial positions. In term of theoretical contributions, this study added in exploring the gap of public-private joint venture by providing a conceptual model, as well as gave additional insights to how public-private joint ventures relates with social network theory. Moreover, the study provides policy implications, foremost for municipal and governmental bodies on how better access to centralized services can be implemented. Providing one place where all services can be accessed, can if successful facilitate smoother information sharing and enhanced competitive advantage.
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Carlson, Kjirste Lynn. "Local pressures in the human hip joint in vivo, correlated with motion kinematics and external forces." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/33469.
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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING
Bibliography: p. 259-266.
by Kjirste Lynne Carlson.
M.S.
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Harrison, Robert Neil. "A bioengineering analysis of muscle and joint forces acting in the human lower limbs during running." Thesis, Liverpool John Moores University, 1989. http://researchonline.ljmu.ac.uk/5126/.
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Bader, Joseph Scott. "DISTAL RADIOULNAR JOINT BIOMECHANICS AND FOREARM MUSCLE ACTIVITY." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_diss/825.
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Optimal management of fractures, post-traumatic arthritis and instability of the distal radioulnar joint (DRUJ) requires an understanding of the forces existing across this joint as a function of the activities of daily living. However, such knowledge is currently incomplete. The goal of this research was to quantify the loads that occur at the DRUJ during forearm rotation and to determine the effect that individual muscles have on those loads.
Human and cadaver studies were used to analyze the shear (A-P), transverse (M-L) and resultant forces at the DRUJ and to determine the role that 15 individual muscles had on those forces. Data for scaling the muscles forces came from EMG analysis measuring muscle activity at nine positions of forearm rotation in volunteers during isometric pronation and supination. Muscle orientations were determined from the marked muscle origin and insertion locations of nine cadaveric arms at various stages of forearm rotation. The roles that individual muscles played in DRUJ loading were analyzed by removing the muscle of interest from the analysis and comparing the results.
The EMG portion of this study found that the pronator quadratus, pronator teres, brachioradialis, flexor carpi radialis and palmaris longus contribute significantly to forearm pronation. The supinator, biceps brachii, and abductor pollicis longus were found to contribute significantly to supination.
The results of the DRUJ analysis affirm that large transverse forces pass from the radius to the ulnar head at all positions of forearm rotation during pronation and supination (57.5N-181.4N). Shear forces exist at the DRUJ that act to pull the radius away from the ulna in the AP direction and are large enough to merit consideration when examining potential treatment options (7.9N-99.5N).
Individual muscle analysis found that the extensor carpi radialis brevis, extensor pollicis longus, extensor carpi ulnaris, extensor indicis and palmaris longus had minimal effect on DRUJ loading. Other than the primary forearm rotators (pronator quadratus, pronator teres, supinator, biceps brachii), the muscles that exhibited the largest influence on DRUJ loading were the abductor pollicis longus, brachialis, brachioradialis, extensor carpi ulnaris, flexor carpi radialis, and flexor carpi ulnaris.
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Phillippi, David M. "The disparity surrounding the integration of Joint Fires an argument for a Joint Fires Observer (Airborne) (JFO(A)) /." Quantico, VA : Marine Corps Command and Staff College, 2008. http://handle.dtic.mil/100.2/ADA490899.
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Chinworth, Susan A. (Susan Annette). "Ground Reaction Forces and Ankle and Knee Moments During Rope Skipping." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc501047/.
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Ground reaction force (GRF) data collected and synchronized with film data to determine peak GRF and calculate moments about ankle and knee during rope skipping. Two, five minute conditions were analyzed for 10 subjects. Condition 1 was set rate and style. Condition 2 was subjects' own rate and style. Means and standard deviations were reported for peak GRF, ankle and knee moments. One way ANOVAs reported no significant difference between conditions for variables measured. Efficiency and nature of well phased impacts during rope skipping may be determined by combination of GRF, similarities in magnitude and direction of joint moments, and sequencing of segmental movements. Technique and even distribution of force across articulations appear more important than magnitudes of force produced by given styles.
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Rayaprolu, Jyothi Guess Trent M. "Controlling quadriceps forces based on predicted retro-patellar stresses in 3-D dynamic model of the knee joint." Diss., UMK access, 2005.
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Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2005."A thesis in mechanical engineering." Typescript. Advisor: Trent M. Guess. Vita. Title from "catalog record" of the print edition Description based on contents viewed June 26, 2006. Includes bibliographical references (leaves 45-46). Online version of the print edition.
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McGregor, Otis W. III. "Command and control of Special Operations Forces missions in the US Northern Command Area of Responsibility." Thesis, Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/2198.
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Approved for public release, distribution is unlimitedThe need for a well thought out, planned, and rehearsed command and control organization to conduct special operations in the US Northern Command Area of Responsibility is vital to success in defending the Homeland. Currently, USNORTHCOM does not have an apportioned or assigned command and control structure for the conduct of special operations. This thesis analyzes three courses of action to fulfill this requirement: use the current USNORTHCOM battle staff command structure including the integration of the Standing Joint Force Headquarters-North; rely on the newly formed US Special Operations Command's Joint Task Force Structures; and establish a Theater Special Operations Command North assigned to USNORTHCOM. Through the conduct of analysis and research this thesis recommends that The Joint Staff direct the reorganization required to establish a Theater Special Operations Command North to exercise command and control of special operations forces conducting operations in the USNORTHCOM AOR.
Lieutenant Colonel, United States Army
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Guo, Se. "Decision Making From Chinese Partners' Perspective In Sino-Foreign Joint Ventures." Thesis, Uppsala University, Department of Business Studies, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-106683.
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As the Chinese rate of growth has accelerated, China is increasingly considered as an important market for a diverse range of goods and services, including the advancedand complex. This has caught the attention of foreign firms in general and Swedish multinational companies in particular (Demir & Söderman 2007). This thesis focuses on a Chinese perspective of Chinese partners' decision making in SFJV, which is lacking in previous research. Six variables which are related to Chinese partners'decision making in SFJV are founded on a theoretical background. Then these six variables are compiled into a Chinese partners' decision making model. Each of these six variables is further divided into several factors. Data is then collect by a case study in which several SFJVs and their Chinese parents-Chinese partners are interviewed.This data is later used to verify and improve the original model which is founded on theoretical background. Finally an updated Chinese partners' decision making modelis created. The thesis concludes with the important findings and a discussion of the applicability of this model, contribution of the research, and future possible research orientation.
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Gustafsson, Anders. "Interoperabilitet mellan mark- och flygstridskrafter : En nulägesanalys av Försvarsmaktens styrande och inriktande dokument utifrån Michael Codners och Ingvar Sjöbloms interoperabilitetsteori." Thesis, Försvarshögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-4627.
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Den svenska Försvarsmakten brukar fråga sig om den är tillräckligt interoperabel för att kunna delta i internationella insatser. En minst lika berättigad fråga borde vara om den är tillräckligt interoperabel, mellan sina försvarsgrenar, för att kunna genomföra självständiga operationer utifrån teorin om gemensam krigföring. Den bristande förmågan till gemensam krigföring i försvarsmakter generellt och för Sveriges Försvarsmakt specifikt utgör uppsatsens grundläggande problem. Genom att anpassa och skapa ett analysverktyg utifrån Codners och Sjöbloms interoperabilitetsteori har Försvarsmaktens dokument analyserats för att belysa eventuella svagheter kopplat till gemensam krigföring och nationell interoperabilitet mellan mark- och flygstridskrafterna. Undersökningen visar på svagheter kopplat till den anpassade interoperabilitetsteorin och Försvarsmaktens styrande dokument. Förmågan till nationell interoperabilitet mellan mark- och flygstridskrafterna är begränsade. Främst beror det på svagheter i Försvarsmaktens strategiska koncept som inte tillräckligt beskriver betydelsen av gemensam krigföring på alla nivåer och vikten av interoperabilitet mellan försvarsgrenarna. En annan slutsats är att Försvarsmaktens doktrinära agerande riskerar att urvattna Försvarsmakten och dess försvarsgrenar på viktiga teoretiska och kulturella skillnader som behövs för att synergier skall kunna uppstå vid gemensam krigföring.The Swedish Armed Forces tend to ask themselves if it is sufficiently multinational interoperablefor participation in international operations. An equally valid question today should be whether theSwedish Armed Forces are sufficiently nationally / internally interoperable, between their branchesof service, to be able to conduct independent operations based on the joint warfare theory.The lack of ability to joint warfare in the armed forces in general and the Swedish Armed Forcesspecially constitutes the essay´s fundamental problem. By using Codners and Sjöbloms custominteroperability theory, the Swedish Armed Forces documents were analyzed to highlight anyweaknesses related to joint warfare and national interoperability between Ground and Air Forces.The survey shows weaknesses linked to the custom theory and Swedish Armed Forces governingdocuments. The ability of a national interoperability is limited between Ground and Air Forcestoday, mostly because of weaknesses in the Swedish Armed Forces strategic concept which doesnot describe the importance of joint warfare at all levels sufficiently. This leads to deficienciesreflected in doctrines, regulations, technology, techniques and exercises. Lack of common documents,techniques, methods and exercises in turn affects armed services understanding of theirdifferent backgrounds and unique perspectives. The result will therefore be low national interoperabilityamong the armed services.
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Wikstrom, Erik A. "Functional vs isokinetic fatigue protocol effects on time to stabilization, peak vertical ground reaction forces, and joint kinematics in jump landing /." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000825.
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Pashak, Riley. "Susceptibility to Ankle Sprain Injury between Dominant and Non-Dominant Leg During Jump Landings." UKnowledge, 2019. https://uknowledge.uky.edu/khp_etds/66.
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Ankle sprains are one of the most common injuries within athletics in the United States with approximately one-million student athletes experiencing ankle sprains each year. Studies argue excessive or rapid ankle inversion occurring from jump landings may cause ankle sprains. Also, the effect of limb dominance on risk of ankle sprain is not well documented.
The aim of this study was to determine if there is an affect of leg dominance on landing mechanism of the ankle joint that predisposes either ankle joint to greater risk of ankle sprain.
Twelve recreationally active subjects were recruited and completed four maximal vertical jumps. Ground reaction force, marker position data and maximal vertical jump height were collected using two Bertec Force plates, a 10-camera motion capture system, and a Vertec Vertical Jump Trainer, respectively. Cortex and Visual3D software programs were used to process the motion capture data and to calculate peak vertical ground reaction forces(vGRF), loading rate, and ankle joint moments. There were no statistically significant differences in ankle joint moment or loading rate between limbs, but peak vGRF were significantly higher (p < 0.05) in the non-dominant ankle. The results suggest the non-dominant ankle displays higher injury potential, as the non-dominant leg accumulates a larger peak landing force.
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Goislard, de monsabert Benjamin. "Individualisation des paramètres musculaires pour la modélisation musculo-squelettique de la main : application à la compréhension de l'arthrose." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4087/document.
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L'arthrose de la main est une pathologie qui engendre des douleurs et des impotences fonctionnelles fortement handicapantes pour la vie quotidienne. Malheureusement, du fait de la complexité biomécanique de la main et du manque de quantification des forces subies par les articulations des doigts, la prévention et la réhabilitation de cette pathologie demeurent problématiques. L'objectif de ce travail doctoral a été de développer une modélisation musculo-squelettique de la main pour améliorer la compréhension de l'arthrose du point de vue biomécanique. Un modèle complet de la main, incluant les cinq doigts et le poignet, ainsi qu'un protocole expérimental de mesure de la cinématique et des forces externes appliquées à la main ont d'abord été développés pour estimer l'ensemble des forces musculaires et des forces articulaires durant la préhension. Ces outils méthodologiques ont permis de clarifier les risques d'arthrose associés aux types de préhension ainsi que ceux spécifiques aux articulations. Afin d'analyser plus précisément les facteurs de risques associés à chaque individu, une méthode d'individualisation des paramètres musculaires a été développée afin de mettre le modèle de la main à l'échelle des capacités réelles des individus. Cette méthode a été employée pour l'analyse de deux patientes et a permis de caractériser les adaptations et les conséquences biomécaniques associées à leurs affections spécifiques. Le modèle de la main et les protocoles expérimentaux développés ont ainsi fournit des données quantifiées qui représentent un intérêt concret pour l'amélioration de la prévention ainsi que pour l'élaboration et l'évaluation de programmes de réhabilitationHand osteoarthritis is a pathology which results in pain and functional impotencies which are problematic for everyday life. Unfortunately, because of the complexity of hand biomechanics and the lack of quantification of finger joint loadings, the prevention and the rehabilitation of this pathology remain problematic. The objective of this doctoral work was to develop the musculoskeletal modelling of the hand to improve the understanding of hand osteoarthritis from a biomechanical point of view. A complete model of the hand, including the five fingers and the wrist, as well as an experimental protocol for measuring hand kinematics and grip forces were first developed to estimate all the muscle forces and joint forces during prehension tasks. These methodological tools have then been used to clarify the risk factors of hand osteoarthritis associated to prehension tasks and to specific joints. To investigate more precisely the risk factors associated to individuals, a method has been developed to individualise muscle parameters of the hand musculoskeletal model in order to provide a better representation of the real performances of each subject. This method has then been applied to the analysis of two osteoarthritis patients and allowed a complete characterization of the specific biomechanical adaptations and consequences associated to their specific affections. The hand musculoskeletal model and the experimental protocols developed during this doctoral work provided quantified data which represents a concrete interest to improve prevention but also to elaborate and evaluate rehabilitation programs
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Cheater, Julian C. "The war over Warrior : unmanned aerial vehicles and adaptive joint command and control /." Maxwell AFB, Ala. : School of Advanced Air and Space Studies, 2008. https://www.afresearch.org/skins/rims/display.aspx?moduleid=be0e99f3-fc56-4ccb-8dfe-670c0822a153&mode=user&action=downloadpaper&objectid=042cf9f2-33d9-4545-b101-f894b89842e0&rs=PublishedSearch.
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Button, Daniel T. "Marine Corps Intelligence and All-Source Fused Analysis Support to Marine and Joint Operating Forces: Complexities, Problems, and Challenges for the Future." Thesis, Monterey, California: Naval Postgraduate School, 1993. http://hdl.handle.net/10945/37416.
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This thesis examined the status of all-source fused intelligence
support within the United States Marine Corps. Deficiencies in this
area were identified in the late 1980s and the Marine Corps created
two new organizations dedictated to the production of all-source
fusion intelligence: the service level Marine Corps Intelligence
Activity and three MAGTF All-Source Fusion Centers. Despite the
creation of these organizations, a number of factors continue to
complicate and inhibit Marine Corps Intelligence from providing
more than rudimentary all-source, fused, tailored intelligence
support to Marine Corps and joint operating forces. A survey
questionnaire returned by nearly half of all Marine Corps intelligence
officers, and research into these new all-source fusion organizations,
determined that continued manning and structure deficiencies,
inadequate training and education, and problems with experience
level and assignments are the main problems. The Marine Corps is
taking active steps to correct these deficiencies, but with downsizing
and budget cutbacks, all-source, fused intelligence support by
Marines to Marines, may remain more a goal than a reality.
in
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Wahid, Ammar. "Influence of kinematics on the calculation of hip joint reaction forces in patients with symptomatic leg length inequality following total hip replacement." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/16065/.
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Up to 10% of patients following Total Hip Replacement (THR) are symptomatic for a Leg Length Inequality (LLI), commonly being up to 20mm longer on the operated side. With 100,000 patients undergoing THR in 2015, 8.7% of all errors in the NHS being attributed to an LLI and malpractice claims being frequent, understanding why certain patients are symptomatic whilst others remain asymptomatic is of great importance. Anthropometric and demographic measurements together with gait analysis results were compared between a group of 26 symptomatic LLI patients following THR, 14 asymptomatic THR patients and 38 healthy individuals using Plug-in-Gait. Statistically significant results were found for height, with LLI patients generally being 6% shorter than their THR counterparts. Gait analysis results using Visual3D and AnyBody found LLI patients demonstrated reductions in peak joint forces, ground reaction forces, moments and knee flexion relative to the THR and healthy group. This was linked to LLI patients walking 20% and 59% slower than their THR and healthy counterparts respectively. Wear analysis found that LLI patients had 9% greater sliding distances than THR patients per stride together with more unidirectional motion paths. A thorough critique of Plug-in-Gait found the clinical results were generally reliable. Further sensitivity analyses however highlighted the weaknesses of the model if used improperly, with a 45mm error in lateral thigh marker positioning leading to a 10% change in hip flexion angle. The choice of hip joint centre regression equation, errors in joint width measurement and the use of CAST over PiG were also found to have a profound effect on kinematic results. It was concluded that LLI patients were symptomatic due to a combination of a greater LLI magnitude to height ratio, leading to greater pelvic obliquity in smaller individuals, and weakened muscles/soft tissues at the hip causing an asymmetric gait.
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Ménard, Mathieu. "Effet de la posture sur la performance et la prévention des blessures en cyclisme. Apport de la modélisation musculo-squelettique." Thesis, Poitiers, 2016. http://www.theses.fr/2016POIT2287/document.
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La performance sportive et la prévention des blessures en cyclisme sont étroitement liées à l'amélioration des capacités physiques, de la technique gestuelle ainsi qu'à l'optimisation du matériel utilisé.Dans ce contexte, nous avons étudié l'influence du recul de selle sur l'efficacité du mouvement de pédalage ainsi que sur les efforts internes au niveau du genou. Une approche de modélisation musculo-squelettique a été développée afin de quantifier indirectement les forces musculaires et articulaires exercées à partir de mesures externes cinématiques et dynamiques. Un intérêt tout particulier a été porté sur l'adéquation entre les mesures des efforts extérieurs, le modèle anthropométrique et les mesures cinématiques afin de diminuer les incohérences dynamiques associées à un système surdéterminé.A partir de ces mesures, les effets du recul de la selle sur la performance ont été évalués à travers l'indice d'efficacité de la force produite à la pédale et un nouvel indice, basé sur le travail mécanique externe. Les résultats ont montré qu'un positionnement de la selle plus reculé augmente l'efficacité du mouvement de pédalage.Concernant la prévention des blessures, notre analyse s'est portée sur l'effet du recul de selle sur deux troubles musculo-squelettiques (TMS) fréquents en cyclisme : le syndrome fémoro-patellaire et le syndrome de la bandelette ilio-tibiale. Nos résultats ont montré que le recul de selle ne modifie pas les forces fémoro-patellaires communément incriminées dans la survenue de ce syndrome. Par ailleurs, une position plus reculée augmente les forces fémoro-tibiales de compression par le biais notamment de la contraction excentrique des muscles ischio-jambiers. Bien que le syndrome de la bandelette ilia-tibiale soit classiquement décrit comme un syndrome de friction (syndrome de l'essuie-glace), le calcul de la force d'interaction entre la bandelette iliotibiale et l'épicondyle fémoral a montré que la compression est le facteur discriminant dans le pathoméchanisme. L'approche méthodologique de simulation développée dans ce cadre possède par ailleurs un fort potentiel afin de corriger les défauts techniques, d'optimiser les réglages matériels et améliorer la prise en charge thérapeutique des TMS.Plus généralement, les développements méthodologiques et implications cliniques issus de ces travaux trouvent des applications directes dans le milieu du cyclisme mais aussi dans l'étude de nombreuses activités sportives (notamment sur ergomètre) du point de vue de la performance, de la prévention des blessures et de la rééducationPerformance and prevention of injuries in cycling are closely linked to the optimisation of individual's physical capacity and technique as weil as sport equipment.In this context, we have studied the influence of saddle setback on the effectiveness of pedalling and on knee joint loads. A musculoskeletal modelling was developed to estimate muscle and joint forces from experimental kinematic and dynamic measurements. We first focused on the adequacy between sensors data, anthropometrie model and kinematic measurements to obtain dynamically consistent input data.Then, the effect of sadd le setback on perforn1ance was evaluated through the index of pedal force effectiveness and a new index based on extemal mechanical work. Results have showed that a more backward sadd le position increases the effectiveness of pedalling.As regards to in jury prevention, our analysis focused on the effect of the saddle setback on two knee injuries commonly observed in cycling: the patellofemoral syndrome and iliotibial band syndrome. Our results showed that saddle setback do not influence patellofemoral joint forces that are usually linked to this syndrome. Moreover, a more backward saddle position increases tibiofemoral compression forces due to increasing eccentric contraction of the hamstrings.Commonly described as a friction syndrome, the computation of interaction force between iliotibial band and lateral femoral epicondyle have showed that the compression was the discriminating factor in the occurrence of the syndrome. The simulation approach developed here could be used as an additional tool to help correct potentially hartnful sport techniques, optimise equipment setup/design and improve the treatment of injuries.More generally, this thesis brings new methodological improvements and clinical implications that have broader applications on sport perfortnance, injury prevention and rehabilitation
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Patergnani, Matteo. ""Influence of lower-limb joint models on subject-specific musculoskeletal model predictions during gait" ( "modelli muscoloscheletrici personalizzati dell'arto inferiore: Analisi dell'effetto della modellazione dei giunti sulla predizione dei carichi agenti sul sistema scheletrico durante il cammino")." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6439/.
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The aim of the present thesis was to investigate the influence of lower-limb joint models on musculoskeletal model predictions during gait.
We started our analysis by using a baseline model, i.e., the state-of-the-art lower-limb model (spherical joint at the hip and hinge joints at the knee and ankle) created from MRI of a healthy subject in the Medical Technology Laboratory of the Rizzoli Orthopaedic Institute. We varied the models of knee and ankle joints, including: knee- and ankle joints with mean instantaneous axis of rotation, universal joint at the ankle, scaled-generic-derived planar knee, subject-specific planar knee model, subject-specific planar ankle model, spherical knee, spherical ankle. The joint model combinations corresponding to 10 musculoskeletal models were implemented into a typical inverse dynamics problem, including inverse kinematics, inverse dynamics, static optimization and joint reaction analysis algorithms solved using the OpenSim software to calculate joint angles, joint moments, muscle forces and activations, joint reaction forces during 5 walking trials. The predicted muscle activations were qualitatively compared to experimental EMG, to evaluate the accuracy of model predictions.
Planar joint at the knee, universal joint at the ankle and spherical joints at the knee and at the ankle produced appreciable variations in model predictions during gait trials. The planar knee joint model reduced the discrepancy between the predicted activation of the Rectus Femoris and the EMG (with respect to the baseline model), and the reduced peak knee reaction force was considered more accurate. The use of the universal joint, with the introduction of the subtalar joint, worsened the muscle activation agreement with the EMG, and increased ankle and knee reaction forces were predicted. The spherical joints, in particular at the knee, worsened the muscle activation agreement with the EMG. A substantial increase of joint reaction forces at all joints was predicted despite of the good agreement in joint kinematics with those of the baseline model. The introduction of the universal joint had a negative effect on the model predictions. The cause of this discrepancy is likely to be found in the definition of the subtalar joint and thus, in the particular subject’s anthropometry, used to create the model and define the joint pose.
We concluded that the implementation of complex joint models do not have marked effects on the joint reaction forces during gait. Computed results were similar in magnitude and in pattern to those reported in literature. Nonetheless, the introduction of planar joint model at the knee had positive effect upon the predictions, while the use of spherical joint at the knee and/or at the ankle is absolutely unadvisable, because it predicted unrealistic joint reaction forces.
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Willinger, Rémy. "Forces musculaires dans une articulation : modelisation de la loi de comportement du muscle." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13012.
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Dalhammar, Karl, and Erik Cederström. "Game changer? : Sveriges och Storbritanniens bilaterala försvarssamarbete efter Brexit." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42383.
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We have in our thesis focused on the bilateral defence and security cooperation between Sweden and Great Britain and investigated if Brexit have led to any consequenses on the cooperation between the two countries. We have also investigated possible consequenses on the bilateral cooperation in regards to Great Britain’s global ambitions. The defence cooperation is viewed from a Swedish perspective. Great Britain is a major security actor with global ambitions. Although, the EU has been a platform for cooperation in different political fields, including defence and security. With Great Britain leaving the EU, Sweden and Great Britain will lose this common platform. This change needs to be considered, especially due to the fact that Sweden has declared the ambition to deepen the defence and security cooperation with Great Britain. In this qualitative study we have turned to experts within the defence and security field with knowledge on the bilateral cooperation between Sweden and Great Britain. We have concluded that the bilateral defence and security cooperation have not been negatively influenced due to the British decision to leave the EU, nor it’s global ambition Global Britain. Although, Great Britain have announced it’s global ambitions after Brexit, we have concluded both that they have an interest in Sweden's vicinity and also that the cooperation have instead deepened during the last couple of years. We can also conclude that there are conditions in favour of a continued and deepened defence cooperation between Sweden and Great Britain. This thesis is written from a Swedish perspective. One of our recommendations for future research is recommending to explore the bilateral Swedish British defence cooperation from a British perspective. Finally, we have concluded that Brexit and Global Britain are not the ”Game Changer” as the title of the thesis imply. This was an assumption we made in the beginning of the work. But as the empirical studies have shown, this is not the case.Vi har i denna uppsats fokuserat på det bilaterala försvarssamarbetet mellan Sverige och Storbritannien och hur Brexit eventuellt påverkar samarbetet. Vidare har vi undersökt om Storbritanniens globala ambitioner påverkar det bilaterala försvarssamarbetet. Vi har belyst försvarssamarbetet ur ett svenskt perspektiv. Storbritannien är en stor säkerhetspolitisk aktör med globala ambitioner och där EU har varit en naturlig plattform för samarbete inom flertalet olika politiska områden inklusive försvars- och säkerhetspolitik. Med Storbritanniens utträde ur EU så mister Sverige och Storbritannien denna gemensamma plattform för samarbete och denna förändring måste hanteras, speciellt då Sverige deklarerar att man vill fördjupa samarbetet med Storbritannien inom försvars-området. I denna kvalitativa intervjustudie har vi vänt oss till sakkunniga inom det försvars- och säkerhetspolitiska området vilka har god kunskap om det bilaterala samarbetet mellan Sverige och Storbritannien. Vi kan konstatera att det bilaterala försvars- och säkerhetssamarbetet inte har fått några negativa konsekvenser kopplat till Storbritanniens utträde ur EU eller dess globala ambition Global Britain. Trots att Storbritannien har aviserat globala ambitioner efter Brexit kan vi dels konstatera dess intresse att verka i Sveriges närområde samt också att vårt bilaterala samarbete snarare har fördjupats de senaste åren. Vi har även kunnat konstatera att det finns goda förutsättningar för ett fortsatt och fördjupat försvarssamarbete mellan Sverige och Storbritannien. Denna uppsats är skriven ur ett svenskt perspektiv. En av våra rekommendationer för framtida forskning föreslår att även utreda försvarssamarbetet ur ett brittiskt perspektiv. Avslutningsvis har vi konstaterat att Brexit och Global Britain inte är någon större ”Game changer” för det bilaterala försvarssamarbetet mellan Sverige och Storbritannien som uppsatsens titel implicerar. Detta var ett antagande vi gjorde när arbetet inleddes, men som utifrån vår empiri inte visat sig stämma.
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Bernard, Julien. "Évaluation du profil biomécanique du coureur cycliste." Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2261/document.
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Les problématiques scientifiques étudiant la biomécanique du mouvement de pédalage en cyclisme ont fait et font toujours l'objet de nombreux travaux. Ces travaux touchent de divers domaines, technologique par exemple pour l'amélioration du matériel qui a considérablement évolué, physiologique pour l'amélioration des capacités physiques et des rendements énergétiques en fonction des styles de pédalage, et biomécanique pour l'expertise, en particulier, de l'efficacité de mouvement de pédalage. Le travail présenté s'inscrit dans ce dernier champ scientifique : la biomécanique du mouvement.Le travail réalisé a bénéficié d'un appel à projet de l'Agence Française de la Lutte contre le Dopage avec pour objectif : « [SIC] se réarmer vis-à-vis du dopage en adoptant des démarches qui se veulent originales et concrètes, notamment en se plaçant du point de vue de l'entourage scientifique de sportifs dopés » en se focalisant sur les thèmes « [SIC] Travail, puissance et rendement énergétique».Dans ce contexte, l'objectif général des travaux est l'évaluation du profil biomécanique du coureur cycliste par mesures en laboratoire. Pour cela, une plateforme expérimentale a été validée et nous a permis d'aborder deux questions centrales i) qu'est ce qui crée la force produite à la pédale ? ii) que peut-on attendre d'une évaluation énergétique mécanique du mouvement de pédalage? Ces deux points sont abordés à partir d'un protocole de tests de type incrémentiel tel que l'exige la Fédération Française de Cyclisme. Les résultats ont été obtenus sur une cohorte de coureurs EliteNumerous studies investigated and still investigate pedaling motion in cycling from a biomechanical point of view. These studies involve various fields, like technologic for improving the material which has considerably evolved, physiologic for physical capacities and energy efficiencies' improvement according to pedaling styles, and biomechanics for motion's expertise and pedaling efficiency in particularly. This work takes part in the last scientific field: the biomechanics of movement.This work received a call for proposals of the AFLD (Agence Française de la Lutte contre le Dopage) in order to: "[SIC] rearm regarding doping by adopting original and practical approaches, considering scientific environment of doped athletes" by focusing on the themes of "[SIC] Work, power and energy efficiency".In this context, the general objective of this work is the biomechanical evaluation of cyclist's profile in laboratory conditions. For this, an experimental platform has been validated and allowed us to follow two central issues i) How is created the force produced to the pedal? ii) What can be expected from a mechanical energy evaluation of pedaling motion? These two points are discussed through incremental protocol tests as required by the French Cycling Federation. The results were obtained on a cohort of Elite cyclists
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Sands, William A., Wendy L. Kimmel, Jeni R. McNeal, Sarah L. Smith, Gabriella Penitente, Steven Ross Murray, Kimitake Sato, Satoshi Mizuguchi, and Michael H. Stone. "Kinematic and Kinetic Tumbling Take-off Comparisons of a Spring-floor and an Air FloorTM: A Pilot Study." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/4619.
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Tumbling take-offs on floor exercise apparatuses of varying stiffness properties may contribute to apparatus behaviors that lead to increased injury exposure. The purpose of this pilot study was to compare the kinematics, kinetics, and timing performance characteristics of a springfloor and a spring-floor with an added Air FloorTM. Five male international gymnasts performed a forward handspring to forward somersault and a round off, flic flac, backward somersault on a standard spring-floor and a spring-floor with an Air FloorTM. Performances were measured via high-speed video kinematics (lower extremity joint angles and positions), electromyography of eight lower extremity muscles, mean peak forces on the feet, and timing. Comparisons of spring-floor types, lower extremity joint angles, lower extremity muscle activations, foot forces, and selected durations were determined. The spring floor with Air FloorTM resulted in longer take-off contact durations than spring-floor alone. Dynamic knee angles may indicate an unexpected and potentially injurious motion of the triceps surae musculotendinous structures. This pilot and hypothesis generating study has suggested future research examining dynamic knee position and angle changes, the role of spring-floor vibration and stiffness in take-offs, and take-off muscle activation alignment with the stiffness of the spring-floor. Pragmatically, there appears to be a convergence of evidence indicating that a slower frequency response of the spring floor may assist tumbling performance and reduce stress and strain in the lower extremity.
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Sturnieks, Daina Louise. "Variations in gait patterns and recovery of function following arthroscopic partial meniscectomy." University of Western Australia. School of Human Movement and Exercise Science, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0034.
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[Truncated abstract] Previous research has found that full recovery of knee function following arthroscopic partial meniscectomy (APM) is often not achieved, and in the long-term, over 50% of these patients will develop knee osteoarthritis (OA). Mechanical factors are believed to contribute largely to the development of knee OA. High frequency loading has been shown to lead to degenerative joint changes in animal models. In human gait, the knee adduction moment during stance phase, which tends to load the medial articular surface of the tibiofemoral joint, has been associated with the presence, severity and progression of knee OA. Quadriceps weakness, which is common in people with knee pathology, has been associated with abnormal sagittal plane knee moments during gait, yet no studies have investigated the effect of knee strength on frontal plane kinetics. This work aimed to investigate gait mechanics in a post-APM population, determine the influence of neuromuscular factors on gait, and assess recovery of function over 12 months while examining factors associated with recovery. One hundred and six APM subjects were examined between one and three months postsurgery. Data were compared to an age-matched control group of 49 healthy adults. Subjects were aged 20 to 50 years and had been screened for: clinical and radiographic evidence of knee OA; previous or current knee joint disease or injury (other than the current meniscus pathology); or any other previous or existing disease or injury that may have an effect on gait, or predispose to joint disease. Three-dimensional gait analysis was performed at a freely-chosen walking velocity, using a 50 Hz VICON three-dimensional motion analysis system, instrumented with two force platforms and 10-channel electromyography system. Subjects also underwent knee strength testing on a Biodex isokinetic dynamometer. Information was collected regarding subject’s physical activity levels, general health and knee function, as well as patient’s surgery specifics and rehabilitation regime.
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Mutallimzada, Khalil. "The Role of Social Capital in Ex-combatant Reintegration : A case study of the Ukrainian Donbas war veterans' social, political and economic reintegration in Odessa." Thesis, Uppsala universitet, Institutionen för informatik och media, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452704.
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As a result of the conflict in eastern Ukraine, there are at present hundreds of thousands of Ukrainian Donbass War veterans who participated in the Anti-Terrorist Operation (ATO) and Joint Forces Operation (JFO) who must now reintegrate into civilian life. Despite the great number of veterans who need to be reintegrated socially, politically, and economically into Ukrainian society, there is currently no comprehensive policy for ex-combatant reintegration in Ukraine. Applying the concept of social capital and based on interviews, observations, and documents, this qualitative case study investigates the nature and the role of social resources in ATO/JFO veterans’ social, political, and economic reintegration in Odessa. The analysis revealed that in the lack of social trust, social cohesion, shared values, and generalized reciprocity within the wider society, veterans’ ability to generate bridging social ties were undermined. On the other hand, widespread norms of trust, particularistic reciprocity, cohesion, and solidarity within the veteran networks made research participants to rely more on their bonding social ties among veterans. The study also finds that in the absence of overarching reintegration programs, veterans’ bonding social ties contributed significantly to all spheres of their reintegration. Despite the inward-looking nature of bonding social capital that tends to reinforce exclusive identities and homogeneous groups, all veterans to varied extent describe their bonding social ties with former military comrades as an important factor in facilitating social, political, and economic reintegration.
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Stocker, A. "The Armed Forces of Australia, Britain and Canada and the impact of culture on joint, combined and multi-national operations : a methodology for profiling national and organisational cultural values and assessing their influence in the international workplace." Thesis, Cranfield University, 2004. http://hdl.handle.net/1826/1040.
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This study identifies the influence of national and military organisational values on the cultures of the armed forces of Australia, Britain and Canada, in order to assess
the impact of culture on Joint, Combined and Multinational operations. This is
achieved by:
· Defining culture, values and related concepts.
· Outlining a viable methodology to examine and profile cultural values.
· Demonstrating why values form the basis of this study.
· Reviewing the body of cross-cultural academic literature on cultural values and
the military.
· Executing a measurement of values in a consistent and academically sound
manner.
· Examining national influences on the culture of the armed forces of Australia,
Britain and Canada.
· Examining intra- national organisational influences on the culture of the services
of the armed forces of Australia, Britain and Canada.
· Examining international organisational influences on the culture of the services of
the armed forces of Australia, Britain and Canada.
· Focusing on the values of the armed forces examined in this study in order to
compare the findings with the results obtained from the Values Survey Module.
· Discussing the implications of the findings of this study and demonstrate how the
values of the nations and organisations that have been examined can be expected
to affect future operations.
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Corsano, Scott E. "Joint fires network ISR interoperability requirements within a joint force architecture." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FCorsano.pdf.
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Lundsten, Johan. "Hur bra är vi på att använda våra helikoptrar? : En undersökning om Försvarsmaktens helikopterorganisation." Thesis, Försvarshögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-3986.
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Med början på år 1995 slogs Flygvapnets-, Arméns- och Marinflygets respektive helikopterförband samman till en gemensam helikopterflottilj sorterandes under Flygvapnet. Äldre helikoptersystem byttes ut mot nya uppdaterade system för att bättre klara dagens uppgifter parallellt med att efterfrågan har ökat nationellt såväl som internationellt. Samtidigt som en statlig utredning säger att understöd med helikopter är av stor betydelse för Försvarsmaktens framtida användbarhet så har flera omorganisationer skett inom myndigheten, vilket riskerar att hämma effektiviteten. Hur lämplig är Försvarsmaktens nuvarande helikopterorganisation när det gäller helikoptersamövning mellan Helikopterbataljonen och övriga förband? Studien visar att dagens Försvarsmakt, där efterfrågan på helikoptrarna är större än de tillgängliga resurserna, använder sig av ett system med både styrningar från högre chef såväl som önskemål från förbanden. Detta organisationsval stämmer väl överens med de antaganden, hämtade ur Bolman & Deals teori Det strukturella perspektivet, som har utgjort arbetets teoretiska grund. I arbetet framkommer även att det saknas en försvarsmaktsgemensam erfarenhetsdatabas för dessa övningar vilket riskerar att utgöra en friktion i kunskapsspridningen mellan förbanden.Beginning in 1995, the Swedish Air force’s, Army´s and Navy´s respective helicopter units merged into one Helicopter Wing belonging to the Air force. Older helicopter systems were exchanged to new, more updated systems with higher capability to cope with new demands. Today the use of helicopters has increased both nationally and internationally. While a state investigation says that the use of helicopters has a big role for the future use of the Swedish military, has several reorganizations taken place. Changes that may inhibit the efficiency of the Swedish Armed Forces. How suitable is today´s helicopter organization within the Swedish Armed Forces regarding to joint exercises between the Helicopter Battalion and other units? The study shows that today's organization, where the demand for helicopters is greater than the available resources, uses a hierarchical system that uses both directives from higher levels as well as requests from the different units. This organizational construction is consistent with the assumptions taken from Bolman & Deals theory Structural Framework, which has formed the theoretical ground for the study. The work also reveals the lack of a joint experience database for these exercises which might impede the spread of knowledge between the units.
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Williams, Steven M. "Synergy in the joint conventional strike force." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA295455.
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Borowski, Zbigniew Jan 1958 Carleton University Dissertation Engineering Aerospace. "Force control of a flexible joint robot." Ottawa.:, 1993.
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Bergesen, Sean A. "Adaptive Joint Force Packaging (AJFP) : a critical analysis/." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA277691.
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Cinadr, Edward Michael. "True forces in dowels in rigid pavement joints." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177443848.
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Paschini, Vincent. "Time history analysis of axial forces (Pass Through Forces) at joints in a braced frame." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74415.
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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 49-50).
As buildings keep getting taller, traditional braced lateral systems take more loads. This generates a phenomenon at every joint of a frame called "Pass Through Force". Pass through forces come from the transfer of axial forces between two side by side members. Adding a bracing scheme to our frame will introduce even more pass through forces at the node since part the force in the bracing will be transferred in the horizontal member. The main goal of this thesis is to find an appropriate way of computing pass through forces without being too conservative. If we take an accurate value of pass through force at a node, the steel connections will not be overdesigned, resulting in cost savings. In this thesis, we analyse multiple bracing configurations for a typical steel frame under different load combinations in order to find a procedure for computing pass through forces adequately. Each scenario will be analysed in detail, a time history analysis will be used to find precise values under earthquake loading. The results are compared with two traditional methods of finding pass through forces, and the best approach is identified.
by Vincent Paschini.
M.Eng.
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Modenese, Luca. "Biomechanics, musculoskeletal modelling, hip joint loads prediction, muscle force estimation." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/39476.
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A musculoskeletal model of the lower limb has been implemented and assessed in order to be used as a predictive tool to quantify the hip contact force (HCF) vector acting between the femoral head and the pelvic acetabulum. The model is based on a published anatomical dataset, which has been critically revised and extended. The HCFs obtained through the model have been assessed at multiple levels of detail against measurements from instrumented prostheses from a publicly available dataset. In the first instance, a direct comparison has been undertaken in order to verify predicted HCF magnitudes close to the measured and muscle recruitment consistent with electromyographic activation profiles reported in the literature. Secondly, a trend validation was performed to ensure the correct behaviour of the model when the same daily living task (level walking) was performed with different modalities. Finally, a falsification of the model was performed by challenging it to predict the exact components of the measured hip contact forces for both level walking and stair climbing. The closest achievable predictions were also calculated, together with the accuracy of a conventional use of the model not exploiting a priori knowledge of the joint contact forces. Once the assessment of the model was completed, a dataset of anthropometric, kinematic and kinetic data was collected on eight young healthy subjects performing daily living activities. As a demonstration of the potential use of the dataset, a subject specific model was generated and used to estimate HCF direction and magnitude for level walking and stair climbing, the same activities investigated during model validation. The model was further extended in order to include the upper part of the body and potentially analyze full body kinematics and kinetics. A further modified version of the model was finally developed in order to be used in finite elements analyses or more generally in applications requiring equilibrated sets of muscle and joint forces acting on a bone structure, as the highly discretized representation of the muscles makes the model particularly suitable for this kind of use. The developed model has been implemented in the open source software OpenSim and is freely available for download and use in research.
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Böe, Erik. "NATOs nye konsepter, NATO Response Force og Combined Joint Task Force - i et maritimt perspektiv." Thesis, Försvarshögskolan, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1658.
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Bakgrunnen for innføringen av CJTF-konseptet, og dermed innslag av multinasjonale enheter, varreduksjoner i de alliertes nasjonale styrkestrukturer. Dessuten er flernasjonale styrker blitt mer vanlige bådei internasjonale fredsstøtteoperasjoner og for å løse mer tradisjonelle allierte oppgaver.Det er viktig å kunne se sammenhengen mellom NATOs nye deployeringskonsepter. Tidligere hadde ikkeNATO et system som ivaretok de prosesser og aktiviteter som var nødvendige i perioden fra krisen var etfaktum til en CJTF var operativ. NRF er ment å skulle fylle dette tomrommet.Den forsvars- og sikkerhetspolitiske utviklingen er, og har vært, preget av mange begivenheter. NATOstilnærming til Europa, European Security and Defence Identity, og EUs militære fokusering, EuropeanSecurity and Defence Policy, er begge viktige milepæler for ulike nasjoners militære fokusering.Sammen med nye operasjonsområder og tilhørende konfliktskala, ulike konfliktløsere og nasjonersalliansetilhørighet, vil jeg belyse tre valgte lands maritime evne og villighet til å delta internasjonalt iNATOs nye konsepter.Sverige – på tross av sitt medlemskap i EU, en stadig tilnærming til NATO samt satsning på kystnæreoperasjonskonsepter – har tydelige begrensninger. Den politiske viljen er ikke alltid like presis og dethersker en for stor diskrepans mellom mål og midler. Norge har med sitt NATO medlemskap opparbeidetseg verdifull erfaring, de har en velutviklet konseptuel basis, men må være observant sin marginale flåtepark.Storbritannia – som en europeisk stormakt og foregangsland på mange områder – har gjentatte gangerdemonstrert evne, politisk vilje og handlekraft.Avdelning: ALB - Slutet Mag 3 C-uppsHylla: Upps. ChP 02-04