To see the other types of publications on this topic, follow the link: Measure equipment.
Dissertations / Theses on the topic 'Measure equipment'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Measure equipment.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Losik, Len. "Using Analog Telemetry to Measure Equipment Mission Life and Upgrade Factory Equipment ATP." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595641.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaFor equipment and systems that are too expensive and too important to fail such as launch vehicles and spacecraft, the actual reliability is dominated by infant mortality failures that occur soon after dynamic environmental ATP that is used to eliminate the equipment that will fail prematurely. Premature equipment failures greatly increase risk getting to space and working in space, slowing down the growth of commercial space tourism. Premature equipment failures occur because during factory ATP, only equipment performance is measured and there is no relationship between equipment performance and equipment reliability. Accelerated aging was documented preceding GPS satellite atomic clock failures during the 10 years of the GPS Block I test and evaluation phase. Prognostic technology leverages the presence of accelerated aging to identify equipment that will fail. A prognostic analysis uses the same prognostic algorithms to convert equipment telemetry used to measure equipment performance to a time-to-failure (TTF) measurement, previously made using a probability distribution function. The equipment with accelerated aging that is present after ATP can be replaced, stopping infant mortality failures from occurring and producing equipment with 100% reliability. When all spacecraft and launch vehicle equipment that will fail prematurely are identified and replaced, satellite and launch vehicle reliability will be 100% and getting to space and working in space will be much safer.
2
Losik, Len. "Stopping Launch Vehicle Failures Using Telemetry to Measure Equipment Usable Life." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581848.
Full textAbstract:
Launch vehicle equipment reliability is driven by infant mortality failures, which can be eliminated using a prognostic analysis prior, during and/or after the exhaustive and comprehensive dynamic environmental factory acceptance testing. Measuring and confirming equipment performance is completed to increase equipment reliability by identifying equipment that fails during test for repair/replacement. To move to the 100% reliability domain, equipment dynamic environmental factory testing should be followed by a prognostic analysis to measure equipment usable life and identify the equipment that will fail prematurely. During equipment testing, only equipment performance is measured and equipment performance is unrelated to equipment reliability making testing alone inadequate to produce equipment with 100% reliability. A prognostic analysis converts performance measurements into an invasive usable life measurement by sharing test data used to measure equipment performance. Performance data is converted to usable life data provides a time-to-failure (TTF) in minutes/hours/days/months for equipment that will fail within the first year of use, allowing the production of equipment with 100% reliability.
3
Losik, Len. "Stopping Launch Vehicle Failures Using Telemetry to Measure Equipment Usable Life." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595729.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaLaunch vehicle equipment reliability is driven by infant mortality failures, which can be eliminated using a prognostic analysis prior, during and/or after the exhaustive and comprehensive dynamic environmental factory acceptance testing. Measuring and confirming equipment performance is completed to increase equipment reliability by identifying equipment that fails during test for repair/replacement. To move to the 100% reliability domain, equipment dynamic environmental factory testing should be followed by a prognostic analysis to measure equipment usable life and identify the equipment that will fail prematurely. During equipment testing, only equipment performance is measured and equipment performance is unrelated to equipment reliability making testing alone inadequate to produce equipment with 100% reliability. A prognostic analysis converts performance measurements into an invasive usable life measurement by sharing test data used to measure equipment performance. Performance data is converted to usable life data provides a time-to-failure (TTF) in minutes/hours/days/months for equipment that will fail within the first year of use, allowing the production of equipment with 100% reliability.
4
Stuttle, Michael Christopher. "The development of remote controlled survey equipment to measure abandoned mine workings." Thesis, Loughborough University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252167.
Full text
5
Losik, Len. "Using Telemetry to Measure Equipment Reliability and Upgrading the Satellite and Launch Vehicle Factory ATP." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595730.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaSatellite and launch vehicles continues to suffer from catastrophic infant mortality failures. NASA now requires satellite suppliers to provide on-orbit satellite delivery and a free satellite and launch vehicle in the event of a catastrophic infant mortality failure. A high infant mortality failure rate demonstrates that the factory acceptance test program alone is inadequate for producing 100% reliability space vehicle equipment. This inadequacy is caused from personnel only measuring equipment performance during ATP and performance is unrelated to reliability. Prognostic technology uses pro-active diagnostics, active reasoning and proprietary algorithms that illustrate deterministic data for prognosticians to identify piece-parts, components and assemblies that will fail within the first year of use allowing this equipment to be repaired or replaced while still on the ground. Prognostic technology prevents equipment failures and so is pro-active. Adding prognostic technology will identify all unreliable equipment prior to shipment to the launch pad producing 100% reliable equipment and will eliminate launch failures, launch pad delays, on-orbit infant mortalities, surprise in-orbit failures. Moving to the 100% reliable equipment extends on-orbit equipment usable life.
6
Losik, Len. "Using Telemetry to Measure Equipment Reliability and Upgrading the Satellite and Launch Vehicle Factory ATP." International Foundation for Telemetering, 2010. http://hdl.handle.net/10150/605986.
Full textAbstract:
ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, CaliforniaSatellite and launch vehicles continues to suffer from catastrophic infant mortality failures. NASA now requires satellite suppliers to provide on-orbit satellite delivery and a free satellite and launch vehicle in the event of a catastrophic infant mortality failure. The infant mortality failure rate remains high demonstrating that the factory acceptance test program alone is inadequate for producing 100% reliability space vehicle equipment. This inadequacy is caused from personnel only measuring equipment performance during ATP and performance is unrelated to reliability. Prognostic technology uses pro-active diagnostics, active reasoning and proprietary algorithms that illustrate deterministic data for prognosticians to identify piece-parts, components and assemblies that will fail within the first year of use allowing this equipment to be repaired or replaced while still on the ground. Prognostic technology prevents equipment failures and so is pro-active. Adding prognostic technology will identify all unreliable equipment prior to shipment to the launch pad producing 100% reliable equipment and will eliminate launch failures, launch pad delays, on-orbit infant mortalities, surprise in-orbit failures. Moving to the 100% reliable equipment extends on-orbit equipment usable life.
7
Cui, Yong. "A new measure for evaluating shielding performance of an equipment enclosure at frequencies above 1 GHz." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542805.
Full text
8
Losik, Len. "Using Telemetry to Measure Equipment Mission Life on the NASA Orion Spacecraft for Increasing Astronaut Safety." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581640.
Full textAbstract:
ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, CaliforniaThe surprise failure of two NASA Space Shuttles and the premature failures of satellite subsystem equipment on NASA satellites are motivating NASA to adopt an engineering discipline specifically developed for preventing surprise equipment failures. The NASA Orion spacecraft is an Apollo module-like capsule planned to replace the NASA Space Shuttle reusable launch vehicle for getting astronauts to space and return to the earth safely as well as a crew escape vehicle stored at the ISS. To do so, NASA is adopting a non-Markov reliability paradigm for measuring equipment life based on the prognostic and health management program on the Air Force F-35 Joint Strike Fighter. The decision is based on the results from the prognostic analysis completed on the Space Shuttle Challenger and Columbia that identified the information that was present but was ignored for a variety of reasons prior to both accidents. The goal of a PHM is to produce equipment that will not fail prematurely and includes using predictive algorithms to measure equipment usable life. Equipment with transient behavior, missed by engineering analysis is caused from accelerated of parts will fail prematurely with 100% certainty. With the processing speed of today's processors, transient behavior is caused from at least one part suffering from accelerated aging. Transient behavior is illustrated in equipment telemetry in a prognostic analysis but not in an engineering analysis. Telemetry is equipment performance information and equipment performance has been used to increase reliability, but performance is unrelated to equipment remaining usable life and so equipment should be failing prematurely. A PHM requires equipment telemetry for analysis and so analog telemetry will be available from all Orion avionics equipment. Replacing equipment with a measured remaining usable life of less than one year will stop the premature and surprise equipment failures from occurring during future manned and unmanned space missions.
9
Losik, Len. "Using Telemetry to Measure Equipment Mission Life on the NASA Orion Spacecraft for Increasing Astronaut Safety." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595658.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaThe surprise failure of two NASA Space Shuttles and the premature failures of satellite subsystem equipment on NASA satellites are motivating NASA to adopt an engineering discipline that uses telemetry specifically developed for preventing surprise equipment failures. The NASA Orion spacecraft is an Apollo module-like capsule planned to replace the NASA Space Shuttle reusable launch vehicle for getting astronauts to space and return to the earth safely as well as a crew escape vehicle stored at the ISS. To do so, NASA is adopting a non-Markov reliability paradigm for measuring equipment life based on the prognostic and health management program on the Air Force F-35 Joint Strike Fighter. The decision is based on the results from the prognostic analysis completed on the Space Shuttle Challenger and Columbia that identified the information that was present but was ignored for a variety of reasons. The goal of a PHM is to produce equipment that will not fail prematurely. It includes using predictive algorithms to measure equipment usable life. Equipment with transient behavior caused from accelerated of parts will fail prematurely with 100% certainty. For many decades, it was believed that test equipment and software used to in testing and noise from communications equipment were the cause of most transient behavior. With the processing speed of today's processors, transient behavior is caused from at least one part suffering from accelerated aging. Transient behavior is illustrated in equipment telemetry in a prognostic analysis. Telemetry is equipment performance information and equipment performance has been used to increase reliability, but performance is unrelated to equipment remaining usable life and so equipment should be failing prematurely. A PHM requires equipment telemetry for analysis and so analog telemetry will be available from all Orion avionics equipment. Replacing equipment with a measured remaining usable life of less than one year will stop the premature and surprise equipment failures from occurring during future manned and unmanned space missions.
10
Losik, Len. "Results from the Prognostic Analysis Completed on the NASA EUVE Satellite to Measure Equipment Mission Life." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595790.
Full textAbstract:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaThis paper addresses the research conducted at U.C. Berkeley Space Sciences Laboratory, Center for Extreme Ultra Violet Astrophysics between 1994 and 1995 on the NASA EUVE ion-orbit satellite. It includes the results from conducting a scientific analysis called a prognostic analysis completed on all satellite subsystem equipment. A prognostic analysis uses equipment analog telemetry to measure equipment remaining usable life. The analysis relates equipment transient behavior, often referred to as "cannot duplicates" in a variety of industries caused from accelerated aging to the equipment end-of-life with certainty. The analysis was confirmed by using proprietary, pattern recognition software by Lockheed Martin personnel Lockheed Martin personnel completed an exploration into the application of statistical pattern recognition methods to identify the behavior caused from accelerated aging that experts in probability reliability analysis claims cannot exist. Both visual and statistical methods were successful in detecting suspect accelerated aging and this behavior was related to equipment end of life with certainty. The long-term objective of this research was to confirm that satellite subsystem equipment failures could be predicted so that satellite subsystem and payload engineering personnel could be allocated for only the time that equipment failures were predicted to occur, lowering the cost of mission operations. This research concluded that satellite subsystem equipment remaining usable life could be measured and equipment failures could be predicted with certainty so that engineering support for mission operations could be greatly reduced.
11
Losik, Len. "Using Analog Telemetry to Measure Usable Life Invasively on the Air Force's Next Generation Reusable Space Booster Equipment." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581644.
Full textAbstract:
ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, CaliforniaMeasuring and confirming equipment usable life that passes dynamic environmental factory acceptance testing (ATP) will ensure no equipment will fail prematurely increasing safety and mission assurance on the Air Force's Next Generation Reusable Space Booster (NGRSB). The same analog telemetry generated and analyzed during ATP used to measure and confirm equipment performance per the procurement contract can serve both purposes. Since the NGRSB payload lift requirement is the same as the EELV, the need for exotic combinations of reusable and throwaway components is unnecessary unless they yield new level of reliability, maintainability and supportability. A prognostics and health management (PHM) program exploits the presence of non-repeatable transient events (NRTE) (a.k.a. accelerated aging) that is missed during any engineering analysis in equipment analog telemetry to calculate equipment remaining usable life/mission life. Without an invasive physical measurement of equipment usable life, satellite and launch vehicle equipment reliability is dominated by premature equipment failures. If the Air Force continues to calculate NGRSB equipment mission life on paper, the NGRSB equipment reliability will also be dominated by infant mortality failures just as all expendable launch vehicle equipment is. The Air Force's, Markov-based reliability paradigm used to procure Air Force satellites and launch vehicles, results in space mission infant mortality failure rate as high as 25%/year. According to the Aerospace Corporation, Air Force space vehicle equipment that passes both equipment level and vehicle level ATP has a 70% likelihood of failing prematurely within 45 days after arriving in space. If a PHM is used on the NGRSB, it stops premature failures and lowers life overall cycle cost providing superior reliability, maintainability, supportability and availability for future Air Force space missions that are too important and too expensive to fail prematurely.
12
Perkovic, Emil. "The development of equipment to measure and monitor wear inside gun barrels : Application of the product development process." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79025.
Full textAbstract:
The gun barrel is one of the most important parts of the whole artillery system. During firing, the wear leads to reduced performance and availability. Wear in gun barrels has different types of erosion mechanisms, in particular chemical-, thermal- and mechanical erosion. This takes place in the internal ballistic process when the projectile is fired from the gun barrel and it will affect the external ballistic parameters. Therefore, an equipment is needed to monitor and measure the wear inside different calibre gun barrels. Wear in gun barrels takes place under extreme conditions during firing due tohigh gas pressures and high temperatures arise as propellant burns. The present thesis aims to develop a type of measuring equipment that should be able to measure and monitor wear inside gun barrels between the diameter ranges of A-C mm. In this master thesis, the product development process has been adapted in order to reach the following goal which is to accomplish a technical solution for the problem associated with wear in gun barrels. The product development process is a systematical approach of developing new products. The different steps that have been evaluated are the product specification, generation of concepts, selection of concepts and layout- and detail design. Before these steps where performed, a project plan was done in order to organize the project. This was then followed by a literature review to obtain information about the problems in the project and to find inspiration from similar applications. The results of the product development process led to a concept of a moveable measure-head which uses a crawler to move inside the gun barrel and adapters to be able to use inside different calibre gun barrels. Then a rotating 3D-laser scanner to measure the change in diameter of the bore. A laser distance sensor and a receiver in order to measure the straightness and to be able to know the position of the moving measure-head in the gun barrel. At last, a wireless camera to monitor the wear inside the gun barrel. The selected concept has been developed and potential solutions for the problem have been described and formed. For the next phase of the project, the concept needs to be developed into a complete model. The next phase of the project is the prototype testing phase.
13
Coney, Sonia Lorraine. "The Development of the Self-Injury Self-Report Measure." Digital Commons @ East Tennessee State University, 2007. https://dc.etsu.edu/etd/2116.
Full textAbstract:
Despite the amount of research that has been conducted on self-injury there is a lack of empirically validated instruments with which to measure self-injurious behavior. The present study developed a measure to examine self-injury and the associated features. Undergraduate students (n = 184) were administered a set of surveys to assess demographics, self-injurious behavior, suicidal ideation, Axis I and Axis II disorders, and impulsivity. Results indicated that a reliable measure, able to assess the extent of self-injury as well as associated features, was developed. Such a measure will enable clinicians to better assess self-injury and enable researchers to more fully examine self-injury and its relationship to other disorders.
14
Bailey, Nicholas David. "Development and testing of experimental equipment to measure pore pressure and dynamic pressure at points outside a pipe leak." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/13655.
Full textAbstract:
Includes bibliographical references.Leaks in water distribution mains are a major issue throughout the world. The amount of water lost through these leaks is unacceptable for a resource, which is becoming ever scarcer. Little is known about the fundamentals, which exist outside leaking water distribution mains. The se fundamentals are the interaction between the leaking water and the soil surrounding the distribution main. This interaction is known as the leak - soil interaction. Research has found that a phenomenon called internal fluidisation typically occurs in the soils outside of leaks in distribution mains. Internal fluidisation is a complex interaction between the leak and the surrounding soil, whereby the soil losses its intermolecular bonding and becomes displaced by the water jet generated by the leak. It is believed that this complex phenomenon causes large energy losses. Subsequently, many water leaks are not able to propagate to the ground surface where they will be visible. This leads to many such leaks being undetected below the ground surface. The objective of this study was to develop an experimental setup, which simulated the internal fluidisation phenomenon. The setup consisted primarily of an orifice, simulating a leak in a distribution pipe; surrounded by ballotini (glass beads), as the soil medium surrounding the pipe; and the measurement instruments, which were Pitot tubes. When using the experimental setup, pore pressures and dynamic pressures around the leak and therefore within the ballotini bed were measured using two Pitot tubes. The accuracy and repeatability of these measurements were also of importance and were investigated. The accuracy of the measurements were dependant on the precision of the Pitot tubes in taking measurements. They were found to have an error of up to 4.1 %, although the experiment to test for the accuracy was not fool proof. The repeatability of the measurements was found to have a 3.8 % average difference between the previous and repeated measurements. The measuring of the pore pressures and dynamic pressures resulted in the following findings, which were the most important in the study: There were large vertical velocities found in the fluidized zone, where outside of this zone they were significantly smaller. The largest pore pressure was found to occur near the top of the fluidised zone. The pore pressures in the bed from a certain distance away from the orifice had a linear distribution, illustrating that Darcy water flow was present. High energy existed in the fluidised zone where it was greatest nearest the orifice and decreased to the top of the fluidised zone. In the ballotini bed outside of the fluidised zone the energy was found to be considerably smaller and decreased further away from the orifice.
15
Berenato, Gregory. "Measure it!: Developing an electronic resource for scientific measurement skills." CSUSB ScholarWorks, 2005. https://scholarworks.lib.csusb.edu/etd-project/2621.
Full text
16
Yang, Chyi-Bao. "The application of overall equipment effectiveness (OEE) as a measure for improving productivity and efficiency in a typical factory environment." Master's thesis, Virginia Tech, 1995. http://hdl.handle.net/10919/46373.
Full text
17
Bendapudi, Srinivas, and Mayil Murugan Shiva Kumar Patchai. "Design of Station for Calculating Centre of Gravity of Truck Cabin : A Product Design Project." Thesis, Linköpings universitet, Maskinkonstruktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148599.
Full textAbstract:
As a part of Linköping University’s master program course curriculum, current thesis is performed at Tools and fixtures department (MPCT) of Scania, Oskarshamn. The aim of this master thesis project is to develop a complete construction of the station in CAD which calculates the weight and center of gravity of all the different cabs produced in Scania CV AB. To accomplish this project a generic product development process described in product development textbook by Ulrich and Eppinger (2012), fifth edition and The mechanical design by David G Ullman, fourth edition were extensively used. The whole function from a black box is decomposed into several sub functions and different solutions were identified for these individual functions. By using morphology matrix and proper combinations from these solutions five different concepts were developed and presented to Scania CV AB. The team along with technical design experts in the MPCT department evaluated all the concepts and one concept was chosen for further development. Protecting the weighing scales during loading of cab from forklift onto the station and safety for the cab during tilting are the two main challenges faced during detail design phase. We were able to achieve these operations by incorporating a lifting table into the station design. Thanks to the custom made multi-tasking lift table which is manufactured and supplied by HYMO. With the help of sensors, speed of the lifting table can be controlled with two operating speeds-High & Low. Lifting table moves in its lowest speed whenever it approaches the weighing scales. Incorporation of Jacob safety into the lifting table allows the table to always operate in low speed when the lift link is in action. These sensors ensure high safety for the cab and weighing scales. Apart from this, an emergency stop has been provided to stop the entire operation in case of emergencies. In this proposed design, the center of gravity values will be determined in two stages and the weight readings are recorded in computer during these stages. For determining the longitudinal and transverse distances of CG, weight readings from all the weighing scales is essential once the cab is loaded on the station from the forklift. For determining the vertical distance of CG, two weight readings and measured tilt angle is required. A calculation module will allow the user to enter these values and obtain the result in no time. This developed 3-D CAD model with 2-D drawings are presented to Scania and the obtained results of this work fulfilled the set of requirements set for this master thesis.
18
Basic, Selma. "Developing process quality measurement in shipbuilding industry." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-18887.
Full textAbstract:
This thesis investigates the possibility to adapt Overall Equipment Effectiveness (OEE), tothe development process in the shipbuilding industry.More specifically the development process wasdelimited to the phases; design, work preparation, production and verification.Ordinarily, OEE is a performance measurement for mass production. Itincludes aquality parameter which has been the focus of this thesis. Both literature review and case study investigation show that process quality is of critical importance in the shipbuilding industry because of the needs for dimensional accuracy and high-quality assemblage.The three main factors affecting process quality are;the flow of information between engineering phaseand productionphase, and the amount of rework and delays. The factors wereevaluated along an optimization method with a specific attention to process quality. Acase studywas conductedto confirm the relevance of the literature review on factors affecting process qualityand allowedto gather factors in process quality that are relevant to the industry.In light of those results, I re-developed a model providingnew measurement of what I call OPQE (Overall Process Quality Efficiency).This study contributes to a betterunderstanding of process quality in ETO(Engineering-To-Order)industries. Notably it shows how deviations that require rework and causesdelays are impacting process quality. It also shows that detecting errors early in the process of production is essential for insuring quality control. An error detected late affects negatively process quality and increases cost.
19
Aspar, Sablee. "The investigation of clinical engineering resource models and performance measures in the United Kingdom." Thesis, Queen Mary, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336503.
Full text
20
Burda, Ondřej. "Měření polohy těžiště jízdních kol." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232691.
Full textAbstract:
The first part of the thesis The measurement of the location of centre of gravity of bicycles is firstly about history and division of bicycles, about the legislation in the Czech Republic concerning the cyclists, about the analysis of accidents of cyclists and lastly about the analysis of the method of the measurement of the location of centre of gravity. The second part of the thesis describes the procedure of calculation of the location of centre of gravity in the chosen incline method and the proposal of measure apparatus. The third part of the thesis occupies with the measurement and processing of concrete values for chosen sample of cyclists on the bicycles which are selected in the way that the results of the location of centre of gravity in the final part of the thesis are compared with the respect to their application during the expert opinion.
21
Sutherland, Robert Allan, and mikewood@deakin edu au. "Exposure to fumes and gases during welding operations." Deakin University, 1998. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050902.143604.
Full textAbstract:
The exposure to fumes and gases is one of the hazards associated with welding operations. Apart from research conducted on the mechanism of fume and gas formation and the relationship between fume formation rates and common welding parameters, little is known about the exposure process during welding.
This research project aimed to identify the factors that influence exposure, develop an understanding of their role in the exposure process and through this understanding formulate strategies for the effective control of exposure during welding. To address these aims a literature review and an experimental program was conducted The literature review surveyed epidemiological, toxicological and exposure data. The experimental program involved three approaches, the first, an evaluation of the factors that influence exposure by assessing a metal inert gas/mild steel welding process in a workshop setting. The second approach involved the study of exposure in a controlled environment provided by a wind tunnel and simulated welding process. The final approach was to investigate workplace conditions through an assessment of exposure and control strategies in industry.
The exposure to fumes and gases during welding is highly variable and frequently in excess of the health based exposure standards. Exposure is influenced by a number of a factors including the welding process, base material, arc time, electrode, arc current, arc voltage, arc length, electrode polarity, shield gas, wire-to-metal-work distance (metal inert gas), metal transfer mode, intensity of the UV radiation (ozone), the frequency of arc ignitions (ozone), thermal buoyancy generated by the arc process, ventilation (natural and mechanical), the welding environment, the position of the welder, the welders stance, helmet type, and helmet position. Exposure occurs as a result of three processes: the formation of contaminants at or around the arc region; their transport from the arc region, as influenced by the entry and thermal expansion of shield gases, the vigorous production of contaminants, thermal air currents produced by the heat of the arc process, and ventilation; and finally the entry of contaminants into the breathing zone of the welder, as influenced by the position of the welder, the welders stance, helmet type, and the helmet position. The control of exposure during welding can be achieved by several means: through the selection of welding parameters that generate low contaminant formation rates; through the limitation of arc time; and by isolating the breathing zone of the welder from the contaminant plume through the use of ventilation, welder position or the welding helmet as a physical barrier. Effective control is achieved by careful examination of the workplace, the selection of the most appropriate control option, and motivation of the workforce.
22
Claesson, Anton, and Victoria Isacsson. "Investeringskalkylering : en kartläggning och analys av kalkyleringsarbetet på Volvo Construction Equipment." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12780.
Full textAbstract:
Problems: How does Volvos CE: s four Swedish plants work with investment appraisals? Does the work differ between the plants? If differences exist, what can be improved in order to make the work more uniform? Purpose: To map the work with investment appraisals at Volvo CE: s four Swedish plats, to analyze differences in work between the plants and give proposals to a more homogenous working. Method: A method of qualitative nature. The study mainly contains raw data from semi structured interviews. Secondary data, such as internal policy documents and documentation of completed investment projects, has supplemented the raw data. Analysis: The mapping shows significant differences in work with investments between Volvo CE: s Swedish plants. A big difference between the plants is the extent of which they use investment appraisals in the investment process. Common to all plants are the deficiencies in establishing post calculations. Conclusions: Study proposals for improvements that will lead to a more homogenous work include that project managers at each plant in the future should work for a common project model. Proposals also include that a Business Case containing a common calculation template with investment calculations shall be made in the investment projects. Post calculations are also recommended at projects which a Business Case has been made. The post calculations will allow a comparison between forecast and outcome. Finally, it is proposed that an investment council with representatives from each plant is formed.Problemfrågor: Hur arbetar Volvos CE:s fyra fabriker i Sverige med investeringskalkyler? Skiljer sig arbetet åt mellan fabrikerna? Om skillnader finns, vad kan förbättras för att göra arbetet mer enhetligt? Syfte: Att kartlägga arbetet med investeringskalkyler på Volvo CE:s fyra svenska fabriker, analysera skillnader i arbetet mellan fabrikerna samt ge förslag till ett mer homogent arbetssätt. Metod: En kvalitativ metod har använts där huvuddelen data utgjorts av primärdata i form av intervjumaterial från semistrukturerade intervjuer. Sekundärdata, såsom interna styrdokument och dokumentation från avslutade investeringsprojekt, har sedan kompletterat studiens primärdata. Analys: Kartläggningen visar tydliga skillnader i arbetet med investeringar mellan Volvo CE:s svenska fabriker. En stor skillnad mellan fabrikerna är i vilken utsträckning investeringskalkyler används i investeringsprocessen. Gemensamt för samtliga fabriker är också bristerna i upprättandet av efterkalkyler. Slutsats: Studiens förslag till förbättringar som skall leda till ett mer homogent arbetssätt är bland annat att projektledare på respektive fabrik i framtiden bör arbeta efter en gemensam projektmodell. Det finns också förslag på att ett Business Case innehållande en gemensam kalkylmall med investeringskalkyler skall upprättas vid investeringsprojekt. Efterkalkyler rekommenderas också på de projekt där ett Business Case upprättats, då efterkalkylerna möjliggör en jämförelse mellan prognoser och utfall. Slutligen föreslås att ett investeringsråd med representanter från samtliga fabriker bildas.
23
Ray, Soumitry J. "Intelligent hazard identification: Dynamic visibility measurement of construction equipment operators." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51968.
Full textAbstract:
Struck-by fatalities involving heavy equipment such as trucks and cranes accounted for 24.6% of the fatalities between 1997-2007 in the construction industry. Limited visibility due to blind spots and travel in reverse direction are the primary causes of these fatalities. Blind spots are spaces surrounding an equipment that are invisible to the equipment operator. Thus, a hazard is posed to the ground personnel working in the blind spaces of an equipment operator. This research presents a novel approach to intelligently identify potential hazards posed to workers operating near an equipment by determining the visible and blind space regions of an equipment operator in real-time. A depth camera is used to estimate the head posture of the equipment operator and continuously track the head location and orientation using Random Forests algorithm. The head posture information is then integrated with point cloud data of the construction equipment to determine both the visible and the blindspots region of the equipment operator using Ray-Casting algorithm. Simulation and field experiments were carried out to validate this approach in controlled and uncontrolled environment respectively. Research findings demonstrate the potential of this approach to enhance safety performance by detecting hazardous proximity situations.
24
Le, Roux Anleri Martha. "The validation of two burnout measures in the South African earthmoving equipment industry / A.M. le Roux." Thesis, North-West University, 2004. http://hdl.handle.net/10394/674.
Full textAbstract:
The objectives of this study were to validate the Maslach Burnout Inventory - General Survey
(MBI-GS) and the Oldenburg Burnout Inventory (OLBI), to determine the construct equivalence
and item bias of these instruments for employees in an earthmoving equipment industry in South
&ca of different language groups, to determine the correlation between the MBI-GS and the
OLBI, and to investigate the relationship between burnout and various demographic
characteristics. A random sample of 326 employees in an earthmoving equipment industry of
eight provinces in South Africa was taken. The MBI-GS, the OLBI and a biographical
questionnaire were used as measuring instruments. Cronbach alpha coefficients, inter-item
correlation coefficients, Pearson product-moment correlation coefficients and exploratory factor
analysis were used to analyse the data
The results showed that three factors of the MBI-GS and two factors of the OLBI exist for
different language groups. Exploratory factor analysis with target rotations confirmed the
construct equivalence of the three factors of the MBI-GS and the two factors for the OLBI for
different language groups. No evidence was found for uniform or non-uniform bias of the items
of the MBI-GS or the OLBI for different language groups. Results indicated that no differences
with respect to levels of burnout exist between various demographic characteristics.
Recommendations were made for further research.Thesis (M.Com. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2005.
25
Muriti, Andrew John Safety Science Faculty of Science UNSW. "A biomechanical analysis of patient handling techniques and equipment in a remote setting." Awarded by:University of New South Wales. Safety Science, 2005. http://handle.unsw.edu.au/1959.4/22002.
Full textAbstract:
Remote area staff performing manual patient handling tasks in the absence of patient lifting hoists available in most health care settings are at an elevated risk of musculoskeletal injuries. The objective of this project was to identify the patient handling methods that have the lowest risk of injury. The patient handling task of lifting a patient from floor to a chair or wheelchair is a common task performed in a remote health care setting. The task was performed utilising three methods, these being: (1) heads/tails lift, (2) use of two Blue MEDesign?? slings and (3) use of a drawsheet. The task of the heads/tails lift was broken down into two distinctly separate subtasks: lifting from the (1) head and (2) tail ends of the patient load. These techniques were selected based on criteria including current practice, durability, portability, accessibility, ease of storage and cost to supply. Postural data were obtained using a Vicon 370 three - dimensional motion measurement and analysis system in the Biomechanics & Gait laboratory at the University of New South Wales. Forty reflective markers were placed on the subject to obtain the following joint angles: ankle, knee, hip, torso, shoulder, elbow, and wrist. The raw data were converted into the respective joint angles (Y, X, Z) for further analysis. The postural data was analysed using the University of Michigan???s Three-Dimensional Static Strength Prediction Program (3D SSPP) and the relative risk of injury was based on the following three values: (1) a threshold value of 3,400 N for compression force, (2) a threshold value of 500 N for shear force, and (3) population strength capability data. The effects on changes to the anthropometric data was estimated and analysed using the in-built anthropometric data contained within the 3D SSPP program for 6 separate lifter scenarios, these being male and female 5th, 50th and 95th percentiles. Changes to the patient load were estimated and analysed using the same computer software. Estimated compressive and shear forces were found to be lower with the drawsheet and tail component of the heads/tails lift in comparison to the use of the Blue MEDesign?? straps and head component of the heads/tails lift. The results obtained for the strength capability aspect of each of the lifts indicated a higher percentage of the population capable of both the drawsheet and tail end of the heads/tails lift. The relative risk of back injury for the lifters is distributed more evenly with the drawsheet lift as opposed to the heads/tails (tail) lift where risk is disproportionate with the heavier end being lifted. The use of lifter anthropometrics does not appear to be a realistic variable to base assumptions on which group of the population are capable of safely performing this task in a remote setting. This study advocates the use of the drawsheet lift in a remote setting based on the author???s experience and the biomechanical results obtained in this study. The drawsheet lift is both more accessible and provides a more acceptable risk when more than two patient handlers are involved, in comparison to the other lifts utilised lifting patients from floor to a chair.
26
Mathias, Agocs. "HOW A MANUFACTURING ORGANISATION EVALUATE EFFECTIVNESS OF PERFORMANCE MEASURES; : A Case study in cooperation with Volvo Construction Equipment in Eskilstuna." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-23175.
Full textAbstract:
The purpose of this thesis is to point out how a company can gain a better process by using PM in an effective way. The report concludes that the existence in practice of theoretically important aspects are different, also that the most correct way of leading the aspects are through the creation of a PM process. During this thesis work the benefits with performance measurements have been analyzed. Since the genesis of the industrialisation there have been growing needs to identify ways of understanding how a company functions. One of the main events historically leading to the broad adoption of PM was the introduction of the DuPont model. The DuPont model developed by DuPont and General Motors during the beginning of the 20th century quickly became the industry standard in the US for financial analysis. The Dupont model gave PM a central role in evaluating the performance of a company. Companies are today driven towards a higher level of responsiveness and flexibility in order to remain competitive. In order to measure the advancement towards these objectives, an increasingly complex set of activities collection of PM to monitor performance satisfactorily. Often however, PM are still developed around traditional, functional metrics focusing on departmental issues, rather than on the whole value stream. There has also been analyzed how a manufacturing company can use PM in an effective way. Under this thesis it emerged that the most crucial factor affecting the companies PM was that it was hard to understand how to use it correctly. When a company use it correctly it determines where the company stands, if they want to be competitive in the future and a method to maintain a good value stream flow. The economical factors for the company are at least important because all decisions always include costly investments. At the same time a company’s PM must be as efficient as possible and generate a good investment. Also other factors have been presented in this thesis but do not affect the effectiveness of the PM. The most important factors found to a more effective PM were; does the PM fulfil its purpose, is the performance attained, to make the purpose explicit and at last boost the education around the subject. The whole research has been carried out over a twenty-week period, during that period data collection has been performed via case studies. The rest of the data collection has been collected through a literature review by examining relevant data to answer the two research questions. This thesis have led to a better understanding regarding how to use PM and the benefits of it. This are based on the collected data from the case studies and from the theoretical findings, the empirical data were analyzed in a way that the company understood what was wrong with today´s PM.
27
Chen, Ted L. "Design and evaluation of an in-cockpit re-planning tool as an emergency decision aid." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/12240.
Full text
28
Baker, Henry Thomas. "A Study of Walkway Safety and Evaluation of Tribological Test Equipment." UNF Digital Commons, 2014. https://digitalcommons.unf.edu/etd/484.
Full textAbstract:
A walkway tribometer measures the coefficient of friction between flooring material and a test foot. The value of the coefficient of friction is an indicator as to whether the flooring surface is slippery and has a propensity to cause slip and falls. This study determined that one style of tribometer, an XL Tribometer, mimics the heel-to-floor interaction of the human heel strike. High speed video footage revealed that the test foot strikes the surface and rotates so that full engagement occurs before sliding thus mimicking the affect of a human ankle. The test foot accelerates forward as would be expected during a human slip event. The manufacturer’s reported impact speed of 11 in/s, when set to the operating pressure of 25psi, was found to be much lower than measured speeds of three calibrated tribometers. Three XL tribometers were tested and provided a range of impact speeds from 17.4 to 22.7 in/s (n=540) when set to the operating pressure of 25 psi. The pressure setting was found to have a significant effect on the impact speed while the mast angle had an insignificant affect. A review of human walking studies revealed a range of pedestrian heel impact speeds on the order of 19.4 to 45.3 in/s during normal human ambulation activities. These tribometers fell on the low side of this speed range. A sensitivity study showed that the measured value of the coefficient of friction tends to decrease with a higher impact speed. This COF decrease was on the order of 0.02 and below the machine resolution and considered inconsequential within the walkway safety community.
29
Allread, Benjamin Scott. "Real-time pro-active safety in construction." Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/34815.
Full textAbstract:
Collisions between personnel on foot and heavy equipment or materials on a construction site can be characterized as a contact collision. These types of incidents are a common occurrence on a work site. Technology is needed to improve work zone safety by alerting workers that are in danger of collisions pro-actively and in real-time. Developing this technology may assist in collecting previously un-recorded data on "near-misses" (close-calls). An approach is presented in this paper that is based on wireless radio frequency technology to alert workers in real-time when they are in danger. Various experiments are described that have been conducted in order to gain better understanding of the technology's potential, including measuring equipment blind spots and alert (or safety) zones.
Blind spots areas are measured for six common construction vehicles to help determine the required (or minimum) alert distance (safety zone) for the equipment. A computer program was developed in-house to automatically calculate the percentage of blind spots on 2-dimensional planes and in the overall 3-dimensional volume. The blind spots results directly indicate the necessary safety zones for the equipment.
The proximity device results show that technology demonstrated the capability of collecting important safety data while pro-actively detecting hazardous situations and warning workers and equipment operators during imminent potential hazardous events. Furthermore, the presented research can lead to improve the overall safety performance in construction and elsewhere through improved learning and education by providing relevant information to decision makers at all levels.
30
Louw, Andries Barnabas. "Tools for the revision of a maintenance strategy for an explosives manufacturing plant, using asset management principles / A.B. Louw." Thesis, North-West University, 2009. http://hdl.handle.net/10394/3835.
Full textAbstract:
The research topic is: Tools for the revision of a maintenance strategy for an explosives
manufacturing plant, using asset management principles. This research has specific reference
to the SASOL Prillan plant based in SASOL, Sasolburg. The purpose of this research is to
identify tools for the revision of a maintenance strategy for an explosives manufacturing plant,
using asset management principles. These tools must be aimed to increase the proactive work
capacity index, Figure 3, and to identify and/or develop tools that can be used by the
engineering team of this explosives manufacturing plant to increase equipment reliability and
performance. In this research assets include people. The meaning and application of asset
management principles were researched and the tools needed to combine existing efforts and
future needs are discussed. The human element to ensure the successful implementation of an
asset management culture was researched and attributes of leaders and a change model is
presented. This research was done into the wider engineering management discipline and not
only maintenance.
The method used to gather data was by means of interviews of a sample group within this
organization. As this manufacturing unit makes use of subject matter experts, these support
functions and plant personnel that were not interviewed, were issued with questionnaires to
ensure that the sample group is a fair representation of the total manufacturing facility. To obtain
a holistic view of potential shortcomings within the current maintenance strategy, all disciplines
and levels within this operation were interviewed and commonalities of various asset
management models were determined and used to define existing problem areas. This data
was used to determine statistical correlations. The case study presented in Chapter 1 indicates
that there is a case for change that can improve the proactive work capacity index of the
engineering team. The results of this research confirm that there is in fact a real requirement to
increase spares accuracy, improve on technical training as well as a need to establish visual
performance indicators (dashboard) to measure overall equipment efficiency with the goal toTools for the revision of a maintenance strategy for an explosives manufacturing plant, using
asset management principles
increase equipment reliability and performance. The technical training referred to in this
research reflects on training of people on equipment after investment in new technology. The
current spares holding strategy is lacking equipment description accuracy.
Furthermore, it is recommended that the implementation of career paths and development plans
for individuals must be developed to create an environment of learning. The use of user status
information captured on the computerized maintenance management system (SAP R/3) can
add to the management of works orders and indicate where the focus must be to complete
overdue work orders. Open work orders should be used to manage expenditure, to measure
planning efficiency and to manage the cash flow of the business. The use of overall equipment
efficiency and engineering efficiency measures is recommended and must be visually displayed
on a “dashboard”. It was recommended that the engineering and operations personnel of this
manufacturing plant be trained in asset management principles and that balanced scorecards
are developed to ensure that the strategies of the various departments are aligned with the
business strategy.
Diagram 1 best illustrates the thinking and process flow of this research. The flow diagram
shows five distinct stages and the appropriate objectives and/ or elements that were considered.
The dissertation is also structured in this manner.
All abbreviations, acronyms and definitions used in this document were listed in APPENDIX BThesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
31
Doležel, Jakub. "Stavebně technologická příprava výstavby bytového domu v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265578.
Full textAbstract:
This thesis focuses on developing technological preparation of the apartment house Kociánka in Brno. This work includes technical report, coordination situation transport routes, feasibility studies, time and financial plan object, building equipment, design of construction machines and equipment, schedule od work, technological prescription, itemized budget, inspection and test plan and dedicated the award to the assessment of traffic and the project of the traffic - engineering measures.
32
Todescatt, Daniel 1973. "Influência do sistema pré-crash de segurança veicular em ocupantes de diferentes estaturas : Influence of vehicle pre-crash safety system in occupants of different sizes." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265952.
Full textAbstract:
Orientador: Antonio Celso Fonseca de ArrudaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
Made available in DSpace on 2018-08-24T20:27:51Z (GMT). No. of bitstreams: 1 Todescatt_Daniel_M.pdf: 4563684 bytes, checksum: 112b516ee4dd9c22aab0bea92df347f4 (MD5) Previous issue date: 2014
Resumo: Esta dissertação visa comparar o desempenho de um sistema convencional de proteção de ocupantes (sistema de retenção) em um veículo de passeio com um sistema pre-crash, considerando ocupantes de três tamanhos diferentes. O termo pre-crash significa que pode ocorrer o disparo do air-bag e pré-tensionador antes do instante de impacto enquanto que no sistema convencional o disparo ocorre sempre após o impacto. Com esta finalidade foi utilizado um modelo de simulação desenvolvido no programa `Madymo¿ combinado ao programa de otimização multidisciplinar `Mode-Frontier¿. Este modelo corresponde à parte do veículo que envolve o motorista e é constituído por parte da carroçaria, assento, coluna de direção e o sistema de retenção. Todo o modelo está sujeito a uma curva de aceleração que representa um impacto frontal contra uma barreira rígida a 50 km/h. São utilizados três tamanhos padronizados de ocupantes representados por bonecos (dummies) que possuem sensores em certas partes do corpo com a finalidade de identificar os índices biomecânicos resultantes do impacto. Estes índices biomecânicos identificam o nível de carga sobre estas partes do corpo e podem ser comparados com critérios estabelecidos em norma. Os três tamanhos de ocupante são definidos da seguinte forma: 5%, 50% e 95%. Onde 5% representa a parcela de 5% da população de menor estatura, 50% representa uma estatura equivalente à média da população e 95% a estatura que é maior que 95% da população. Este padrão é definido de acordo com o tamanho da população americana da época em que estes dummies foram desenvolvidos. O trabalho é dividido em três etapas. Na primeira é utilizado o programa de otimização para dimensionar um sistema de retenção que seja ideal para o 'dummy' tamanho 50%. A partir dos parâmetros determinados para o sistema de retenção são avaliados e comparados os índices biomecânicos dos ocupantes de tamanhos 5% e 95%. O objetivo é demonstrar os riscos a que os ocupantes de dimensões fora do tamanho 50% estão sujeitos. Posteriormente são encontrados, também por meio de algoritmo de otimização, os parâmetros do sistema de retenção que são ideais para os ocupantes 5% e 95%. Novamente é feita uma comparação dos resultados. Por fim é feito um procedimento similar considerando a possibilidade de adiantamento no disparo de dois dispositivos do sistema de retenção: air-bag e pré-tensionador. Novamente é utilizado o algoritmo de otimização para encontrar os parâmetros ideais do sistema de retenção para o ocupante de estatura 50%. Neste caso pode-se verificar se ocorre a melhora dos índices biomecânicos para o ocupante de tamanho 50% comparando-se com os resultados obtidos em um sistema de retenção convencional. Porém, neste caso, o aspecto mais importante deste trabalho é verificar se o adiantamento no tempo de disparo possibilita de redução do risco de ferimentos também para os ocupantes com dimensões 5% e 95% mesmo utilizando-se um sistema de retenção dimensionado para o ocupante de tamanho 50%. Palavras-Chave: segurança veicular, impacto veicular frontal, estatura, simulação, otimização
Abstract: This dissertation aims to compare the performance of a conventional occupants protection system in a passenger vehicle with the performance of a pre-crash system, considering occupants of three different sizes. The term pre-crash means that the firing of the airbag and pretensioner may occur before the instant of impact, while in the conventional system the trigger always occurs after impact. With this purpose a simulation model was developed in the software 'MADYMO' combined with the multidisciplinary optimization software 'Mode-Frontier'. The frontal region of the passengers compartment, the seat, the steering column and the restraint system are modelled. The whole model is subject to an acceleration curve that represents a frontal impact against a rigid barrier at 50 km/h. Three standard occupant sizes represented by dummies are used. They have sensors in certain parts of the body with the purpose of identifying the biomechanical results from an impact. The level of biomechanical loads on parts of the body can be compared with the criteria established in the regulations. The three sizes of occupant are defined as follows: 5%, 50% and 95%. Where 5% is the share of 5% of the population with smaller stature, 50% represents a height equivalent to the average of the population and 95% height that is greater than 95% of the population. The default size is set according to the size of the U.S. population at the time that these dummies were developed. The work is divided into three stages. The first uses an optimization program to obtain a restraint system that is ideal for the dummy size 50%. From the parameters determined for the restraint system the biomechanical indices of occupant sizes 5% and 95% are evaluated and compared. The purpose is to demonstrate the risks to which occupants of dimensions out of size 50% are subject. In the second stage the parameters of the restraint system which are ideal for the sizes 5% and 95% are found, also by means of the numerical optimization algorithm. A comparison of the results for the dummy 5% with parameters for 5 and 50% is made. Also a comparison of the results for the dummy 95% with parameters for 95 and 50% is made. Finally, in the third stage, a similar procedure is done considering the advance in the firing time of two devices from the restraint system: air-bag and pretensioner. Again the optimization algorithm is used to find the optimal parameters for the restraint system considering the occupant height 50%. In this case it is checked whether there are improvements of biomechanical indexes for the occupant size 50%, comparing with the results obtained in a conventional restraint system. Here we reach the most important aspect of this work, which is checking if the advance in firing time results in a reduction of the risk of injury also for occupants with dimensions 5% and 95%, even using a retention system sized for the occupant size 50%. Key Words: vehicle safety, vehicle frontal impact, stature, simulation, optimization
Mestrado
Materiais e Processos de Fabricação
Mestre em Engenharia Mecânica
33
Tavares, Alan Ferreira Pinheiro 1989. "Projeto, construção e teste de protótipo de maca para transporte de crianças de um até dez anos de idades." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265781.
Full textAbstract:
Orientador: Antonio Celso Fonseca de ArrudaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
Made available in DSpace on 2018-08-27T21:51:49Z (GMT). No. of bitstreams: 1 Tavares_AlanFerreiraPinheiro_M.pdf: 45828556 bytes, checksum: df420c63706176638cd3d63b5f5ba1c0 (MD5) Previous issue date: 2015
Resumo: No transporte, por ambulâncias, as crianças estão expostas a riscos fatais ao serem transportadas em macas de adultos as quais não atendem a antropometria infantil. A situação é agravada ao considerar o fato das ambulâncias se locomoverem em altas velocidades e necessitarem frequentemente reduzi-las de modo abrupto. Neste cenário, buscou-se projetar, construir e testar um protótipo de maca com um sistema de retenção eficaz para transportes emergenciais de crianças. O diferencial do projeto em relação às outras macas infantis, existentes no mercado internacional, está na versatilidade de realizar transportes tanto em ambulâncias quanto em áreas de resgate de difícil acesso veicular. O projeto de maca infantil possibilita atender uma ampla gama de pacientes de pequeno porte desde crianças na faixa etária de 1 (um) ano até 10 (dez) anos de idade. Trata-se de uma maca desenvolvida para rápido manuseio e armazenagem por ser dobrável e de fácil instalação sobre qualquer maca de adulto normatizada pela ABNT. O principal fator de segurança está vinculado ao sistema de retenção regulável, com facilidade de rápida fixação e remoção da criança. Foram realizados testes de impacto, com velocidade aproximada de 18 (dezoito) km/h, utilizando a maca de adulto e a maca infantil. O manequim com massa de 22 kg, representativo de uma criança de 6 (seis) anos de idade, foi instalado nas posições sentado e deitado. Os dados coletados, via um programa computacional Kinovea adequado para análise de biomecânica, permitiram estimar o deslocamento do manequim com grande precisão. Utilizou-se um aplicativo instalado em um celular com sistema operacional Android para registrar as desacelerações ocorridas no momento do impacto. A maca infantil apresentou uma retenção significativamente superior à obtida com a maca de adulto, tanto no deslocamento da cabeça quanto do tronco do manequim. Na posição deitado, o manequim chegou a ser ejetado para fora da maca, o que nunca ocorreu utilizando a maca infantil. Os testes realizados com o protótipo da maca validaram o projeto e a solução construtiva que estão vinculados a uma patente a ser depositada no Brasil
Abstract: In transportation, for ambulances, children are exposed to fatal risks by transported in adult gurneys that are not adapted to child anthropometry. The situation is escalated when considering the fact that the ambulances move up in high speeds and with frequently need to reduce abruptly velocity. In this field, we tried to design, build and test a prototype gurney with an effective restraint system for emergency transport children. The differential of the project regards to other children gurneys that exist in the international market; its versatility to perform both transport in ambulances and possible land rescue. Child gurney enables a wide range of small patients from children with one (1) until ten (10) years old, designed for fast handling and storage by be foldable and easy to install on any adult gurney standardized by ABNT. The main safety factor is linked to the adjustable retention system with facility for rapid attachment and the child's removal. Impact tests were performed, with an approximate speed of 18 (twenty) km / h, using the adult gurney and child gurney. The dummy with mass 22 kg, representing a child with 6 (six) years old, was installed in sitting and lying positions. Data collected via a computer program Kinovea suitable for biomechanical analysis, allowed to estimate displacement of the dummy with great precision. It was used a smartphone based on Android operational system to register decelerations occurred on impact. Child gurney had a higher retention regarding to adult gurney both the displacement of the head when the dummy torso restraint. In two teste with lying position, the dummy was ejected out of the gurney, fact that had never happened with child gurney. Tests conducted with the prototype gurney validated the project and the constructive solution that are bind to a patent to will be implanted in Brazil
Mestrado
Materiais e Processos de Fabricação
Mestre em Engenharia Mecânica
34
Vlčová, Zuzana. "Hodnocení ekonomické efektivnosti EPC projektů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225990.
Full textAbstract:
The issue of energy saving building is a current topic of today. The increasing costs of operating buildings reduce economic efficiency of the organization operations. A large part of the operating cost is energy cost. An effective tool for improving the energy performance of buildings is an EPC method. The implementation of energy projects through EPC is offered by Energy Services Company. This thesis evaluates the economic efficiency of the project implemented by the EPC and analyses its risk factors. The subject of EPC project is modernisation of an energy sector of a hospital building. The economic efficiency of the project is interpreted on the basis of economic indicators Net Present Value, Internal Rate of Return and Profitability Index. There was also performed Monte Carlo simulation supported by Oracle Crystal Ball software within the analysis of risk factors for the project.
35
Mikula, Martin. "Termodiagnostika - dotykové a bezdotykové měření teploty." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231525.
Full textAbstract:
This thesis is concerned with thermodiagnostics in industrial practise, which is very important for the assessment of technical condition of object on the basis of temperature, in today's time. It includes summary of contact and contact-free methods and their principle, advantages and disadvantages for aplication in industrial practise. Because of thesis it was carried out measurement in company Daikin Device Czech republic with the use of contact thermometer and two available thermocameras for solving of topical tasks relating to production.
36
Šaroun, Vít. "Stavebně technologický projekt domu pro seniory." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372003.
Full textAbstract:
The aim of the diploma thesis is to make the detailed design project of retirement home in Nové Město na Moravě. This thesis contains a construction technology, summary accompaying technical report, control and test plans, itemized budget, time and financial plan of the carcass object SO01. Finally there is also implementation scheme, situation of site equipment and construction details.
37
Černý, Karel. "Rekonstrukce Hlavní budovy Plaveč – příprava a organizace výstavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225471.
Full textAbstract:
This thesis deals with reconstruction of the home for the elderly Plaveč main building. These reconstruction is primarily interior renovation, the rooms of clients and staff facilities, but also the surrounding of the building. All work will be in full operation. Consideration of this factor in the organization of construction is the main subject of this thesis, which shall include traffic contexts, costing, budget, time schedule, equipment of construction site, construction machinery, technology procedure, occupational safety and resources.
38
Škopík, Michal. "Stavebně technologická studie realizace haly Blansko." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227629.
Full textAbstract:
This diploma thesis deals with solution of construction of steel hall in Blansko. In this thesis is solved constructional-technological study of construction of steel hall. The thesis focuses in assembly of steel skeleton. More specifically deals with traffic situation around building, time and financial plan of the building for individual objects, draft of equipment of construction site, design of the main lifting machines and mechanisms, schedule of the main building object, safety measures at the construction site and ensuring quality requirements for the installation of a steel skeleton. Extra is processed itemized budget with bill of quantities, risk plan of construction of steel hall and construction details. This building is very interesting about architectural design. The basis for this thesis was a drawing documentation for realization of this construction.
39
Chia-HuaHo and 何家驊. "Measure the Energy Expenditure When Seniors Using Outdoor Fitness Equipment." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/jn5fgw.
Full textAbstract:
碩士國立成功大學
體育健康與休閒研究所
105
Background: In recent years, there are many outdoor fitness equipment built in the park that provides the seniors a new way to doing exercise. Although these facilities are modified from many gym facilities, these facilities are without resistance and strength levels. Hence, the aim of this study is to examine energy expenditures when seniors using the outdoor fitness equipment. In addition, this study also use a wearable device to measure the energy expenditure to compare the differences. Purpose: This study was designed for 1. Measure the energy expenditure and exercise intensity when seniors using outdoor fitness equipment in the park. 2. Examine if the data produced by a wearable device (iNCKU smart watch) and the amount of energy required are different when using outdoor fitness equipment. Method: The subjects were above 65 years old participated in this research. They equipped iNCKU smart watch on the left hand, a metabolic system (K4b2) and polar heart rate belt on the chest to measure the energy expenditure while they are using the outdoor fitness equipment. The subjects were follow the exercise prescriptions to manipulate four kinds of outdoor fitness equipment. Subjects were practiced each equipment before the experiment started and used the equipment at a random order. A break were be given between manipulating each equipment. The K4b2 provides breath-by-breath pulmonary data which were capture by Matlab to obtain the data during the stable phase between 100~160 seconds when subject was exercising. Data from the iNCKU smart watch were recorded to an experimental record sheet. One-way ANOVA was used for analyzing the energy expenditure record from the iNCKU smart watch with that from K4b2. Result: A total of sixteen healthy seniors (eight males and eight females) finished all protocols, the average age of the subjects is 70.69±5.59 years old. The energy expenditure for Air walker from frequency 80 Bpm, 100 Bpm and 120 Bpm are 50.78±14.76 cal/kg/min, 59.62±14.23 cal/kg/min and 65.62±18.27 cal/kg/min, for Ski machine from frequency 80 Bpm, 100 Bpm and 120 Bpm are 54.00±14.31 cal/kg/min, 68.87±22.74 cal/kg/min and 74.55±23.39 cal/kg/min, for Waist twister is 38.43±20.16 cal/kg/min, Double arm stretch is 31.05±12.58 cal/kg/min. A 3.2 kph speed of walking is 58.53±19.29 cal/kg/min and 4.0 kph speed of walking is 60.90±20.69 cal/kg/min. The METs levels for Air walker from frequency 80 Bpm, 100 Bpm and 120 Bpm are 2.81±0.85, 3.26±0.82 and 3.55±1.02, Ski machine from frequency 80 Bpm, 100 Bpm and 120 Bpm are 3.02±0.87, 3.82±1.35 and 4.05±1.35, for Waist twister is 2.05±1.15, and for Double arm stretch is 1.63±0.70. A 3.2 kph speed of walking is 3.23±1.04 and 4.0 kph speed of walking is 3.36±1.14. According to one-way ANOVA, it is significantly different between K4b2 and iNCKU smart watch in all projects when comparing the energy expenditure. Conclusion: This study presents energy expenditure and exercise intensity when seniors using four kinds of outdoor fitness equipment in the park. The finding shows that Ski machine and Air walker are moderate-intensity exercise for 3~4 METs, while the Waist twister and the Double arm stretch are light-intensity exercise for about 1~2 METs. When comparing the intensity of outdoor fitness equipment with the similar fitness equipment, it is found that METs values are lower. This research also tries to use the iNCKU smart watch to measure the energy expenditure when seniors using outdoor fitness equipment. Unfortunately, two kinds of devices in the statistics were significantly different in all measurements. It is demonstrating that single sensor measurement has some limitations when measuring the complex motion activities. It may be necessary to rely on combined sensors which can measure different parts of physical functions or use different physiological indicators to calculate the measurement values.
40
Almeida, Julio Augusto Pires. "Use of infrared thermometry to measure canopy-air temperature difference at partial cover to assess crop water stress index." 1986. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1986_242_sip1_w.pdf&type=application/pdf.
Full text
41
Li, Ming-Hung, and 李明鴻. "Discussions Regarding Elevator Equipment Troubleshooting and Preventative Measures." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/zfd4ab.
Full textAbstract:
碩士國立高雄科技大學
電機工程系
107
The first hydraulic lift was built in 1845, where a piston was inserted into the underground cylinder and and liquid (mostly water) was infected into it. The piston was controlled by the water which in turn was controlled by ropes.In 1853, an American named Elisha Otis invented the automatic safety device, which made the lift safe. This invention had a huge impact on the industry Until now, people and lifts are inseparable. Apart from general buildings, lifts are also installed in ordinary private homes. On the contrary, there are still many who are strangers to the liftsIn fact, even though lifts have been around for so many years and there are various types of lifts, they are ranked high risk as there are always opportunities for accidents to occur. Therefore, this study is mainly aimed at the maintenance and overhauling of passenger lifting equipment, as well as changing the technician’s conception so as to reduce the probability of failure and the risk of injury, in an attempt improve safety of users who operate the elevator.
42
Su, Jenn-Ji, and 蘇振基. "A Study of Fire and Explosion Preventive Measures for Incinerator Based Air-Pollution Control Equipment." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/37821801676232553722.
Full textAbstract:
碩士國立高雄第一科技大學
環境與安全衛生工程所
94
ABSTRACT This research was based on the collection of four recent domestic fire and explosion accidents related to waste gas incinerators and air-pollution control equipment. The incident processes were discussed. Potential hazard sources were identified. Finally, Root Causes Analysis method was used to trace the root causes of the incidents. The results indicated that the most probable root causes of fire and explosion of waste gas incinerator are mechanical or instrument failure which occurred 22 times and accounted for 38% of all causes. Process or equipment design faults occurred 17 times and accounted for 30% of all causes. Operation faults occurred 16 times and accounted for 28% of all causes. These three categories were the main causes of the fire and explosion incidents. In comparison with the 100 significant labor accidents occurred in US chemical industry in recent 30 years (Wang, 2001) and the chemical process accidents related to hydrogen (Lin, 2002), it is found similarity in (1) The ratio of incidents due to the mechanical or instrument failure were roughly equal for these three studies and accounts about 40% of all incidents. (2) The combined causes due to the mechanical (instrument) failure and operation faults were nearly equal (64% ~66%) for these three studies and approximately accounted for 2/3 of the incidents. Clearly, the operation faults were also one of the main causes of incidents. Based on the above findings on the main causes of incidents, this study summarized the necessary procedures and safety measures which can be used directly in the design, operation, and maintenance of incinerator based air-pollution control equipment, and to prevent incidents from equipment failure, operation faults, and poor maintenance.
43
Rivera, Steven. "Thermodynamic Modeling of HVAC Plant Cooling Equipment for Quantification of Energy Savings Through Continuous Commissioning Measures." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10417.
Full textAbstract:
The Continuous Commissioning (CC) process is applied to existing buildings in order to reduce energy consumption by optimizing HVAC system operation and improving occupant comfort. The CC process consists of implementing energy saving measures for the air-side and plant-side of HVAC systems. Current development of a computer program (WinAM) by the Energy Systems Laboratory allows the expected energy savings from applying air-side CC measures to a given building to be estimated. However, there is no means for quantifying the potential energy savings from applying plant-side CC measures. The quasi-steady-state method and a regression of EnergyPlus library data were used for chiller modeling and the Merkel method was used for cooling tower modeling. Implementation of the models developed provides a means for quantifying the energy savings associated with plant cooling equipment CC measures.
Chiller models have been developed for the following, with capacity range, average error, and standard deviation in parenthesis: air-cooled scroll chillers (15-168 tons, 8.07%, 9.13%), air-cooled screw chillers (69-513 tons, 7.38%, 6.13%), water-cooled scroll chillers (20-200 tons, 8.16%, 9.72%), water-cooled reciprocating chillers (20-364 tons, 10.30%, 7.81%), water-cooled screw chillers (194-498 tons, 9.87%, 3.65%), and water-cooled centrifugal chillers with inlet guide vane capacity control (233-677 tons, 12.07%, 5.96%) and with VSD capacity control (210-677 tons, 12.18%, 4.61%). From the chiller models developed, energy consumed by the chiller can be calculated as building cooling loads and fluid operating temperatures vary.
Cooling tower models have been developed to predict cooling tower energy consumption as building cooling loads, added load from chillers, fluid operating temperatures, and ambient air temperatures vary. The models developed provide for predicting energy consumption when fan operation is by single-speed, two-speed, variable-speed with modulating outlet dampers, or variable-speed with VFD control.
Implementation of the chiller and cooling tower models developed will allow WinAM users the ability to quantify the potential energy savings associated with changing plant cooling equipment operation.
44
Lin, Der-Long, and 林德隆. "The Performance Analysis of the Cargo Handling Equipments and Green Energy: A Slacks-based Measure DEA Approach." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/szx27g.
Full text
45
En, Lee Chung, and 李仲恩. "A Study of Product Differential Measured by Product Attitude and Product Benefits-Public Lavatory Equipment as an Example." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/62698542693376974794.
Full textAbstract:
碩士大葉大學
工業設計研究所
86
A Public place is an essential and frequently involved environment in people''s life. A public product is certainly utilized with high frequency. Public lavatory equipment is one of this kind. However, it lacks of product differential seriously. At current market segmentation, bathroom -type equipment usually appears at bathroom and kitchen-fitting equipment shows up at kitchen often. However, the public lavatory equipment with professional design is few. Based on this phenomenon, the research focuses on This research methodology is based on the questionnaire primarily. It uses the method of non-random sampling to do survey for users in domestic department stores. The data is analyzed with the software package named "SPSS" by frequency distribution, factor analysis, cluster analysis, Chi-square, and one-way ANOVA. The research result shows that public lavatory equipment can be classified into six clusters of life style obviously. Under different background, the users with different clusters have significant difference to the uses of public lavatory equipment and psychological needs. This finding could be applied for the design of public lavatory equipment as an important reference and keep the public lavatory equipment fitting the users'' needs, which just is the goal of this study.
46
Pilusa, Mogale Ludwick. "Problems encountered by Foskor mine workers with the use of personal protective equipment." Diss., 2008. http://hdl.handle.net/10500/1357.
Full textAbstract:
The purpose of this study was to find out problems encountered by Foskor Mine workers in Phalaborwa with the use of personal protective equipment and also to find out how these problems can be prevented or solved. A quantitative research study was done using a questionnaire as a data gathering tool on workers who are exposed to occupational injuries and illnesses and who use personal protective equipment for their protection. The findings revealed that even though workers were using personal protective equipment they still got occupational injuries and illnesses. They also had problems with their protective equipment like incompatible types of personal protective equipment, such as weight where heavy personal protective equipment like boots were issued and very hot or cold personal protective equipment incompatible with the temperature of the environment. Some personal protective equipment like gloves were of a wrong size and caused allergy. In some instances unavailability of or unsuitable personal protective equipment posed challenges to these workers.Health Studies
M. A. (Health Studies)
47
Rotolo, Francesco. "Strategic measures to confront energy poverty in Portugal." Master's thesis, 2017. http://hdl.handle.net/10400.14/25325.
Full textAbstract:
In the last years, one of the warmest southern European countries has frequently been classified first in the EU28 ranking for levels of excess winter death. This one data is often provided by researchers when analyzing poverty of energy services in Portugal, a phenomenon emphasized by the European Commission in its “Europe 2020” strategy. The current policy of the Portuguese government obliges energy firms to fully absorb the financial burden represented by a social tariff scheme. Efficiency measures, which involve a renovation program of energy services for vulnerable households, are instead adopted by the other Member States to combat this issue.
This dissertation aims at raising the awareness of energy poverty in Portugal, describing both its characteristics and a set of possible approaches to confront this social problem locally.
To do so, a statistical analysis of demographic variables and energy systems allowed to study the diffusion of energy poverty among Portuguese households. The results revealed that, despite affecting a large part of the Portuguese population, homes with a monthly salary lower than 970€ are typically referable to energy-poor conditions for the lack of adequate equipment.
To conclude, a benchmark with the most efficient national policies was conducted, together with main recommendations, which are intended to facilitate the creation of an adequate ecosystem in Portugal to address this condition of discomfort.Nos últimos anos, um dos países mais quentes do Sul da Europa tem frequentemente sido classificado em primeiro lugar no ranking de excessivos níveis de mortes durante o inverno dentro da UE28. Estes dados são normalmente fornecidos por investigadores quando estes analisam a pobreza dos serviços de energia em Portugal, um fenómeno salientado pela Comissão Europeia na sua estratégia "Europa 2020". A atua política do Governo Português exige as empresas de energia a absorver na totalidade a carga financeira representada por um esquema de tarifas sociais. Medidas de eficiência, que incluem um programa de renovação dos serviços energéticos para famílias vulneráveis, são, no entanto, adotados por outros Estados-membros para combater este problema. O objetivo desta dissertação é a consciencialização sobre a Pobreza Energética em Portugal, através da descrição das suas características e da apresentação de possíveis formas para combater localmente este problema social. Para tal, será feita uma análise estatística das variáveis demográficas e dos sistemas energéticos para permitir o estudo da difusão da pobreza energética nas famílias portuguesas. Os resultados revelaram que, apesar de afetar uma grande parte da população portuguesa, famílias com salários mensais inferiores a 970€ são habitualmente associadas com pobres condições energéticas devido à falta de equipamento adequado. Para concluir, foi apresentado um benchmark com as políticas nacionais mais efetivas, juntamente com as principais recomendações, que pretendem facilitar a criação de um ecossistema adequado em Portugal, de forma a corrigir as atuais condições de desconforto.
48
Tomo, Zonwabele Zweli Simon. "Improving the reliability of a chemical process plant." Thesis, 2012. http://hdl.handle.net/10210/4887.
Full textAbstract:
M.Phil.In modern society, professional engineers, technologists and technical managers are responsible for the planning, design, manufacture, maintenance and operation of the processes and systems ranging from simple processes to complex systems. The failure of these can often cause effects that range from inconvenience and irritation to severe impact on the society and its environment. Users, customers and society in general expect that products be reliable and safe at all times (Allan & Ballinton 1992). The biggest investment in any plant is, arguably, on individual plant equipment. It is therefore reasonable to give the greatest attention possible to the health and integrity of equipment that form part of the chemical process plant.Most of plant failures occur without warning and this result in equipment breakdowns, huge production losses and expensive maintenance. The reaction to plant failures has, in most cases, been a reactive maintenance which means that the plant equipment must fail before the cause of fault is investigated and the equipment is repaired. Reactive maintenance has shortcomings in that it is successful in solving problems temporarily but does not guarantee prevention of fault recurrence. Equipment and process failures waste money on unreliability problems. The question that arises is. ‘How reliable and safe is the plant during its operating life?’ This question can be answered, in part, by the use of quantitative reliability evaluation. The growing need to achieve high availability for large integrated chemical process systems demands higher levels of reliability at the operational stage. Reliability is the probability of equipment or processes to function without failure when operated correctly for a given interval of time under stated conditions. This research dissertation is aimed at developing equipment optimisation program for the chemical process plant by introducing a logical approach to managing the maintenance of plant equipment. Some relevant reliability theory is discussed and applied to the Short – Path Distillation (SPD) plant of SASOL WAX. An analysis of the failure modes and criticality helps to identify plant equipment that needs special focus during inspection.
49
Κακαρούντας, Αθανάσιος Παν. "Σχεδιασμός κυκλωμάτων ασφαλούς λειτουργίας και χαμηλής κατανάλωσης ισχύος." Thesis, 2004. http://nemertes.lis.upatras.gr/jspui/handle/10889/3367.
Full text
50
Schneider, Gavriel. "The design and development of a best practice use-of-force training model for the private security industry." Thesis, 2012. http://hdl.handle.net/10500/23548.
Full text