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Dissertations / Theses on the topic 'Measurement'
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Brougham, Thomas. "joint measurements on qubits and measurement correlation." Thesis, University of Strathclyde, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487858.
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Pretorius, Shaun. "Development of flexible automotive measurement adaptors for the PQ25 VWSA platform." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1632.
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The following work describes all knowledge required in the creation of new automotive optical Photogrammetrical adaptors, which allow the user thereof to measure a fully assembled vehicle in its natural position, i.e. on its wheels for the PQ25 platform at Volkswagen of South Africa. The system is the only method available to the manufacturing plant to measure a fully assembled vehicle in this manner. The FlexMess system allows for a quick portable measurement of a vehicle at all stages of Vehicle manufacturing, aligned via the Volkswagen RPS standards. In the first part of the work, the problem of establishing a system capable of measuring the PQ25 platform is achieved by redesigning the PQ24 platform (previous generation Polo) to the new PQ25 vehicle platform. Once the system was redesigned a prototype adaptor system was created. In the second part of the work, the redesigned adaptor system is checked for its accuracy and repeatability. In a statistical analysis of the adaptors ability to measure the reference points needed for alignment of a vehicle, the system is compared to a CMM and verified that the limits fall within the limits of the original FlexMesśs certified accuracy limits. The last part of the work looks at addressing some of the problems of the FlexMess system by creating concepts for an ideal future FlexMess adaptor system.
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Sturm, Anke. "Performance Measurement und Environmental Performance Measurement." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2000. http://nbn-resolving.de/urn:nbn:de:swb:14-994768126734-55001.
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Die Zielsetzung der vorliegenden Dissertationsschrift besteht in der Entwicklung einer systematisierten Vorgehensweise, eines Controllingmodells, zur unternehmensinternen Umweltleistungsmessung. Das entwickelte Environmental Performance Measurement (EPM)-Modell umfaßt die fünf Stufen Festlegung der Ziele der Umweltleistungsmessung (1. Stufe), Erfassung der Umwelteinflüsse nach der ökologischen Erfolgsspaltung (2. Stufe), Bewertung der Umwelteinflüsse auf der Grundlage des qualitätszielbezogenen dreistufigen Bewertungsmodells (3. Stufe), Beurteilung der festgestellten Umweltleistung (4. Stufe) und Entscheidungsfindung bzw. potentielle Revision der Ziele (5. Stufe). Diese Stufen können den Controlling-Phasen Planung [Zielfestlegung und potentielle Revision (1. und 5. Stufe)], Realisation [Erfassung und Bewertung (2. und 3. Stufe)] sowie Kontrolle [Beurteilung (4. Stufe)] zugeordnet werden. Das EPM-Modell wurde in Anlehnung an die Kriterien des Performance Measurement und bisheriger Ansätze der betrieblichen Umweltleistungsmessung konzipiert. Insbesondere die Anlehnung an die Kriterien des Performance Measurement wurde bei der Entwicklung des EPM-Modells gesucht, um zum einen die neuen Ansätze im Bereich der betrieblichen Leistungsmessung zu berücksichtigen und zum anderen eine Kompatibilität zwi-schen betrieblicher Leistungsmessung und Umweltleistungsmessung zu erzeugen. Diese Kompatibilität zeigt sich z. B. in der Entwicklung der Eco Balanced Scorecard. Wichtige Charakteristika des EPM-Modells sind auf der Grundlage der identifizierten Kriterien : · die Ausrichtung der Ziele für die Umweltleistungsmessung sowie der Erfassungs- und Bewertungsverfahren auf die Stakeholder-Interessen; dadurch Abbildung der Umweltleistungsfähigkeit, · die Durchführung der ökologischen Erfolgsspaltung bei der Erfassung der Umwelteinflüsse, · die Ermittlung des Zielerreichungsgrades auf Basis der ökologischen Erfolgsspaltung sowie die Bestimmung der Ursa-chen für potentielle Zielverfehlungen und -erreichungen. Die 2. (Erfassung), 3. (Bewertung) und 4. Stufe (Beurteilung) des EPM-Modells wurden empirisch für die deutsche Maschinenbaubranche überprüft; eine Umsetzbarkeit der genannten Stufen konnte dabei konstatiert werden.
4
Bartsch, Christian [Verfasser]. "Flow-Adaptive Measurement Sequence for Pneumatic Probe Measurements / Christian Bartsch." München : Verlag Dr. Hut, 2017. http://d-nb.info/1149579595/34.
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Yang, Xuan. "Distributed state estimation with the measurements of Phasor Measurement Units." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4479/.
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The world-wide application of Phasor Measurement Units (PMUs) brings great benefit to power system state estimation. The synchronised measurements from PMUs can increase estimation accuracy, synchronise states among different systems, and provide greater applicability of state estimation in the transient condition. However, the integration of synchronised measurements with state estimation can introduce efficiency problems due to the substantial burden of data. The research is divided into two parts: finding a solution to cope with the computational efficiency problem and developing a transient state estimation algorithm based on synchronised measurements from PMUs. The computational efficiency problems constitute important considerations in the operation of state estimation. To improve the low computational efficiency, two distributed algorithms are proposed in Chapters 4 and 5. In these two algorithms, the modelling, structure, and solution are described, and the corresponding procedures of bad data processing are presented. Numerical results on the IEEE 30-bus, 118-bus and 300-bus systems can verify the effectiveness of the two proposed algorithms. A novel transient state estimation algorithm based on synchronised measurements is proposed in Chapter 6. Considering the scanning cycle and sampling rate of PMU measurements, the proposed algorithm can estimate transient states in a practical way. The performance of the proposed algorithm is demonstrated in a transient simulation on the IEEE 14-bus system.
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Snethlage, Tim. "Balanciertes Performance measurement : Grundzüge eines an nachhaltigem Unternehmenserfolg orientierten Performance measurements /." Aachen : Shaker, 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=010671315&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Gaete-Martinez, Victor. "Optical Measurement of Strang Geometry and Orientation and Their Influence on Oriented Strand Composite Formation Quality." Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/theses.asp?highlight=1&Cmd=abstract&ID=FTY2009-004.
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Fagelson, Marc A. "Tinnitus Measurement." Digital Commons @ East Tennessee State University, 2005. https://dc.etsu.edu/etsu-works/1671.
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Yang, Kimberly. "Correlating IVC Measurements with Intravascular Volume Changes at Three Distinct Measurement Sites." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/315932.
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A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine.<br>Bedside ultrasound of the inferior vena cava (IVC) has grown to be an important tool in the assessment and management of critically ill patients. This study endeavors to examine which location along the IVC is most highly correlated with changes in intravascular volume status: (1) the diaphragmatic juncture (DJ) (2) two centimeters caudal to the hepatic vein juncture (2HVJ) or (3) left renal vein juncture (LRVJ). Data was collected in this prospective observational study on patients in the emergency department who were at least 16 years of age, being treated with intravenous fluids (IVF). Measurements of the IVC were recorded at each site during standard inspiratory and expiratory cycles, and again with the patient actively sniffing to decrease intrapleural pressures. IVF was then administered per the patient’s predetermined treatment, and the same six measurements were repeated after completion of fluid bolus. The difference in caval index (dCI) was calculated for all six data sets and correlated with the mL/kg of IVF administered. There was a statistically significant correlation between mL/kg of IVFs administered and dCI at all three sites (DJ: r = 0.354, p value = 0.0002; 2HVJ: r = 0.334, p value = 0.0003; LRVJ: r = 0.192, p value = 0.03). The greatest correlation between amount of fluids administered and dCI was observed along the IVC at the site 2 cm caudal to the juncture of the hepatic veins (2HVJ). This site is also where the largest change in diameter can be appreciated on ultrasound during intravascular volume resuscitation. Our data also suggests that every mL/kg of IVFs administered should change the dCI by 0.86-1.00%. This anticipated change in IVC diameter can be used to gauge a patient’s response to intravascular volume repletion.
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Lee, Hyun. "Reliability evaluation of the BIFMA Chair Measurement Device." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/44963.
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<p>In the last decade, most offices have been equipped with computers, and most office
workers spend much of their time sitting in chairs. And recently, as many office workers
complain of back pains, the importance ofproper sitting and of chair designs that provide
comfortable and suitable sitting posture has become recognized widely.</p>
<p>
One organization involved in the design of chairs is the Human Factors and
Ergonomics Society (HFES) and its ANSIIHFES 100 committee. This committee has
established the ANS/IHFES 100 standard for various types of furniture used at computer
workstations, including chairs, desks, and tables. This committee also has designed the
Chair Measurement Device (CMD) for specific assessments of seat height, seat depth, seat
width, backrest height, backrest width, lumbar support, seat to back included angle, seat
pan angle, armrest height, and armrest clearance, for the purpose of developing chairs in
connection with other related furniture, such as computer desks. The CMD has been
developed through the Business and Institutional Furniture Manufacturer's Association
(BIFMA).</p>
<p>
The purpose of this study was to evaluate the reliability of the CMD, for future use in
evaluating chair design. Eight participants made specific measurements of three chairs
over three measurement sessions. Six measurements were taken from each chair: lumbar
support height, seat height, seat depth, backrest height, seat pan angle, and seat to back
included angle. This experiment produced 2,160 data points, and standard deviation and confidence interval analysis was used to evaluate the inter-evaluator reliability (ie.,
consistency across the different evaluators) and the intra-evaluator reliability (i.e.,
consistency within an evaluator).</p>
<p>
All standard deviations and 99% confidence intervals of the measurements were very
small, implying that the measurements using the CMD were reliable across the evaluators,
as well as within evaluators. The results also show that the procedure established for
measurements was adequate for ANSIIHFES 100 compliance evaluations.</p><br>Master of Science
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Lother, Mathias [Verfasser]. "From Software Measurement to e-Measurement : A Functional Size Measurement - oriented Approach for Software Management / Mathias Lother." Aachen : Shaker, 2007. http://d-nb.info/1166508188/34.
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Lee, Dong Jin. "Toward empirical IP host traffic measurement in passive network measurement." Thesis, University of Auckland, 2009. http://hdl.handle.net/2292/5237.
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An IP flow represents a group of packets that share the same attribute such as their source address. The ever-growing network traffic produces an enormous number of flows. Recent studies attempt to simplify and mine flows in order to understand the network’s behaviour. The traditional technique of packet aggregation to 5-tuple flows provides understanding of the flows themselves, but fails to capture an understanding of the aggregated end-point that generates flows: the IP host. This thesis describes the design, development and analysis of a measurement method that identifies an IP host from network traffic. A conceptual model of IP host aggregations has been designed to summarize traffic: from 5-tuple to 2-tuple and finally to 1-tuple IP host. Using the framework, various observations and analyses have been conducted at the host level, including empirical distributions and behaviour relationships. Several host characteristics and applications are examined from real-world network data, such as characterizing host interaction variability and identifying hosts that are potentially significant.<br>Whole document restricted until 09/2012, but available by request, use the feedback form to request access.
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Mitchell, G. Duncan (Geroge Duncan) 1962. "Team measurement system--a balanced scorecard approach to performance measurement." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12692.
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Matos, Carmen. "Robotically Controlled Measurement System for Millimeter-Wave Antennas." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1588180162492972.
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Snethlage, Tim [Verfasser]. "Balanciertes Performance Measurement : Grundzüge eines an nachhaltigem Unternehmenserfolg orientierten Performance Measurements / Tim Snethlage." Aachen : Shaker, 2003. http://d-nb.info/1170545912/34.
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Freeman, Larry. "PREDICTION AND MEASUREMENT OF RADIATED EMISSIONS BASED ON EMPIRICAL TIME DOMAIN CONDUCTED MEASUREMENTS." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4232.
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This thesis develops a novel method to predict radiated emissions measurements. The techniques used are based on standard Electromagnetic Compatibility (EMC) qualification test methods. The empirical data used to formulate the final results was restricted to pertinent data protocol waveforms however the entire method may be applied to any waveforms for which empirical radiated emissions have been measured. The method provides a concise means for predicting worst case radiated emissions profiles based on empirical measured data.<br>M.S.E.E.<br>School of Electrical Engineering and Computer Science<br>Engineering and Computer Science<br>Electrical Engineering
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Naftali, Verena Kashikuka. "Implementation of a reverberation chamber for electro-magnetic compatibility measurements." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2566.
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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2017.<br>This research project focuses on the implementation of a Reverberation Chamber (RC) by the transformation of an existing electromagnetically shielded room. The reverberation chamber is a kind of shielded room designed to create a statistically random internal electromagnetic environment. The reverberating environment makes it possible to obtain high field strengths from a relatively low input power. The electric fields in the chamber have to be stirred to achieve a statistically uniform field.
The first part of this thesis presents an overview of reverberation chamber principles and preliminary calculations are done: the lowest usable frequency is estimated to be close to 300 MHz from empirical criteria. Modelling of the statistical environment is then presented, where electromagnetic quantities are characterised by probability density functions (Gaussian, Rayleigh and exponential); correlation issues are also presented.
Measurements are performed in the frequency range of 800 MHz – 4 GHz, dictated by the antennas available for this research study. An investigation of cable losses is conducted, followed by a discussion on measurement accuracy.
Mechanical stirrers are designed and manufactured. Electromechanical components are selected based on the literature study. Measurements are obtained through an automated setup using MATLAB®.
To verify that the RC, with its in-house designed mechanical stirrers, is well-operated, the stirring ratio is experimentally determined. After this first test, an exhaustive investigation of probability density functions is conducted, taking into account correlation issues. Measurements show that the quality factor of the chamber is close to 2000 at 3 GHz, and that 60 independent stirrer positions at 4 GHz can be used for statistical analyses.
Finally, the uniformity test is performed with an improved accuracy using frequency stirring. In conclusion, the CPUT RC passes the validation procedure according to the IEC 61000-4-21 standard by generating the required field uniformity within the accepted uncertainty level.
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Ping, Ivan Chang Kok. "HLA performance measurement." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA376484.
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Thesis (M.S. in Modeling, Virtual Environments and Simulation (MOVES))--Naval Postgraduate School, March 2000.<br>Thesis advisor(s): Zyda, Michael ; Bachmann, Eric. "March 2000." Includes bibliographical references (p. 77). Also available in print.
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Tekgül, Hasan, and Yu Khoon Ng. "Power Measurement Device." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15407.
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This thesis project aims to develop an embedded system that can measure real-time power consumption of a house and provide information for the user. System consists of a microcontroller unit, a light sensor, RS232 serial interface, battery and an LED. An 18F series 8bit PIC microcontroller was used for this project because PIC is known to be versatile and very low power-consuming. The goal was to get periodic signal from the sensor mounted on the power meter of a house, calculate the power usage and send this data to serial port for communication purposes. The system is connected to PC through RS232 interface as the first step of the project. The power usage information and a simple user interface sent from the PIC are displayed on the HyperTerminal of the PC. The second step was to communicate with a wireless module which is connected to the central unit of the alarm system in a house. This part of the project requires modification of the communication protocol to suit the one that the company uses in the wireless module. As the power source we chose a 9V battery since the system needs 5V to operate. However it is just the prototype. Therefore the power source choice can be changed in future due to company needs. The LED used in the prototype is for testing purposes and it is also due to changes if not needed. As the result of the project, the first step is finished with minimum requirements. The external hardware is built with all the components and the software is implemented successfully. The system can get signals from the photo sensor; the result is calculated according to the duration between two signals; it is sent to the PC via RS232 serial port and displayed on the PC terminal.
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Saba, Francis Minoru. "SEM cathodoluminescence measurement." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38150.
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Rezaei, Hengameh. "Models complexity measurement." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-68701.
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The demand for measuring the quality aspects and need for higher maintainability and understandability of the models are increasing within the field of software engineering and management. Among these, complex models are of special interest for designers as they are more correlated to the eventual reliability of the system and therefore are considered very important. This study presents a method for measuring the complexity of existing software models in Ericsson seeking to raise the maintainability and understandability of the software engineering project in progress. A literature survey was performed in order to find a list of all potentially useful metrics. Narrowing down the long list of metrics was carried out by interviews with designers at Ericsson. Utilizing statistical data analysis based on interviews results was the next step. Beside, workshops were used for evaluating the reliability of preliminary data analysis and an empirical formula was generated for models’ complexity prediction. Metrics such as “non-self-transitions”, “transitions per states”, and “state depth” are the most important for calculating the models’ complexity score (rank) and for these metrics threshold values were set. Challenges and experiences gained in this study demonstrated the importance of incorporating user generated feedback in the empirical complexity modeling studies
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Willett, Roger. "Accounting measurement theory." Thesis, University of Aberdeen, 1985. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=165709.
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Bannister, Christopher David. "Vehicle emissions measurement." Thesis, University of Bath, 2007. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437600.
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Davies, Ian Peter. "Cognitive workload measurement." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648450.
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Grobbelaar, Johannes Jacobus. "Phase noise measurement." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6806.
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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The objective of the thesis is the development of a phase noise measuring system that makes
use of crosscorrelation and averaging to measure below the system hardware noise floor.
Various phase noise measurement techniques are considered after which the phase demodulation
method is chosen to be implemented. The full development cycle of the hardware is
discussed, as well as the post processing that is performed on the measured phase noise.<br>AFRIKAANSE OPSOMMING: Die doel van hierdie tesis is die ontwikkeling van ’n faseruis meetstelsel wat gebruik maak
van kruiskorrelasie en vergemiddeling om onder die ruisvloer van die meetstelsel se hardeware
te meet.
Verskeie faseruis meettegnieke word ondersoek en die fase demodulasie metode word gekies
om geïmplementeer te word. Die volle ontwikkelingsiklus van die hardeware word bespreek,
sowel as die naverwerking wat toegepas is op die gemete faseruis.
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Schairer, Kim S., M. Patrick Feeney, and Chris A. Sanford. "Acoustic Reflex Measurement." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/1798.
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A standard clinical immittance test battery includes measurements of the acoustic reflex, or more specifically, the middle ear muscle reflex (MEMR). The MEMR is the contraction of the stapedius muscle in response to high-level acoustic stimulation. Clinical MEMR measurements are made according to the American National Standards Institute standard for immittance instruments (S3.39–2012) by use of a 226-Hz probe tone in conjunction with a reflex-activating stimulus presented to the ipsilateral or contralateral ear. The MEMR is a bilateral response, which means that presenting the activator to one ear will elicit the response in both ears. In traditional clinical measurements, the reflex activator stimulus is a pure tone (500, 1000, 2000, or 4000 Hz) or a broadband noise, and the MEMR is measured at tympanometric peak pressure (TPP) as measured on the tympanogram. If the admittance of the test ear decreases by a criterion amount in the presence of the activator, for example, 0.02 to 0.03 mmho, the reflex is considered to be present. The lowest level at which an activator is presented and reliably elicits at least the criterion change in admittance is considered the MEMR threshold. The MEMR is typically present in ears with pure-tone behavioral thresholds of ≤60 dB HL at the activator frequencies (Gelfand 2009).
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Kaplan, Murad. "Predicting Performance for Reading News Online from within a Web Browser Sandbox." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/17.
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Measuring Internet performance for home users can provide useful information for improving network performance. Such measurements typically require users to install special software on their machines, a major impediment to use. To overcome this impediment, we designed and implemented several scripting techniques to predict Internet performance within the tightly constrained sandbox environment of a Web browser. Our techniques are integrated into a Web site project called "How's My Network" that provides performance predictions for common Internet activities, with this thesis concentrating on the performance of online news, social networks, and online shopping. We started our approach by characterizing news sites to understand their structures. After that, we designed models to predict the user's performance for reading news online. We then implement these models using Javascript and evaluate their results. We find out that news sites share common characteristics in their structures with outliers for some. Predicting the page load time according to number objects coming from dominant domain, the one providing the most number of objects, gives more accurate predictions than using total number of objects across all domains. The contributions of this work include the design of new approaches for predicting Web browser performance, and the implementation and evaluation of the effectiveness of our approach to predict Web browser performance.
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Papageorgiou, Pavlos. "The measurement manager modular and efficient end-to-end measurement services /." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8900.
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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Fuller, Andrew D. "A flow rate measurement system for a mobile emissions measurement system." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1903.
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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains xv, 111 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 89-91).
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Freeman, Matthew A. "Multi-area power system state estimation utilizing boundary measurements and phasor measurement units ( PMUs)." Thesis, Texas A&M University, 2006. http://hdl.handle.net/1969.1/4178.
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The objective of this thesis is to prove the validity of a multi-area state estimator and investigate the advantages it provides over a serial state estimator. This is done utilizing the IEEE 118 Bus Test System as a sample system. This thesis investigates the benefits that stem from utilizing a multi-area state estimator instead of a serial state estimator. These benefits are largely in the form of increased accuracy and decreased processing time. First, the theory behind power system state estimation is explained for a simple serial estimator. Then the thesis shows how conventional measurements and newer, more accurate PMU measurements work within the framework of weighted least squares estimation. Next, the multi-area state estimator is examined closely and the additional measurements provided by PMUs are used to increase accuracy and computational efficiency. Finally, the multi-area state estimator is tested for accuracy, its ability to detect bad data, and computation time.
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Li, Yong. "A high speed optical surface coordinate measurement system and its applications to dynamic measurements." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0029/NQ64605.pdf.
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Li, Yong 1965 May 3. "A high speed optical surface coordinate measurement system and its applications to dynamic measurements /." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36639.
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Currently there is no standard whole-field methodology to measure the transient out-of-plane deformation of a surface under dynamic events. In this work, a whole-field high-speed optical surface measurement system has been developed, which yields absolute Cartesian coordinates (xyz) as measurement results. A high-speed digital camera coupled with the grating projection and Fourier transform is used to measure 3D surface deformations with the maximum sampling rate up to 1000 Hz and the exposure time of each frame up to 50 musec. A calibration technique has been utilized to convert the direct measurable values---phase, phi, and image indices (i, j)---into 3D Cartesian coordinates (xyz). In addition, all Cartesian coordinates are with respect to a fixed coordinate system, which is virtually associated with the sensor head. Therefore, the rigid body movements (rotation and translation) of the surface can be detected. The measurement accuracy +/-50 mum is verified with several tests by using standard objects.<br>The dynamic surface deformation during polymer membrane inflation tests is investigated by using the proposed optical measurement system. Effects of various factors, such as the temperature and the airflow rate, are studied. Regarding the characterization of material constants by using the bubble inflation technique, the potential problems, which are caused by ignoring the nonuniformities of temperature distribution and the thermo-warping, have been studied.<br>A finite-element model, which can account for the nonuniformities of temperature distribution and the thermo-warping, has been employed to simulate the inflation deformation. A more accurate way to characterize the material constants is accomplished by combining the optical measurement system and a finite-element model that can account for the nonuniformities of the temperature distribution and the thermo-warping.
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Bartsch, Christian Verfasser], Peter [Akademischer Betreuer] [Jeschke, and Dieter [Akademischer Betreuer] Moormann. "Flow-Adaptive Measurement Sequence for Pneumatic Probe Measurements / Christian Bartsch ; Peter Jeschke, Dieter Moormann." Aachen : Universitätsbibliothek der RWTH Aachen, 2017. http://d-nb.info/1162559888/34.
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Jenner, Leo James. "Measurement of the absolute energy scale of MINOS and background measurements of NEMO-III." Thesis, University College London (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430184.
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Lundberg, Hannah, Helena Wennerström, and Adrienn Csiszer. "Prestationsmätning ur ett kostnadsledarstrategiskt perspektiv : En fallstudie på Gekås Ullared AB." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-45109.
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Bachelor thesis, Business Administration and Economics Programme, School of Business and Economics at Linnaeus University in Växjö. Spring of 2015 Title: Performance measurement from a cost leadership perspective - A case study on Gekås. Authors: Adrienn Csiszer, Hannah Lundberg & Helena Wennerström Tutor: Eva Gustavsson Examiner: Karin Jonnergård Keywords: Performance measurement, Performance measurement systems, Generic strategy, Cost leadership strategy, Financial and non-financial measurements. Purpose: The purpose of this study is to examine how a company with a clear cost leadership strategy chooses to work with performance measurements, with a view to comparing a practical example to theorethical approaches. Methodology: The method chosen for this paper is a case study on Gekås AB. The presented data were collected through interviews conducted with four employees on Gekås. Conclusion: The study concludes that for a business with cost leadership strategy the financial measurements are more important than non-financial meausurements. For Gekås it is important to keep the performance measurement simple and understandable for the employees. They only use three measurements (sales, hours and sales per hour) in planning and in evaluation. In conclusion, the complex models that is described in many articles and studies are unnecessary for Gekås thus the cost is greater than the use.
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Durisek, Nicholas Joseph. "Simultaneous overall measurement uncertainty reduction for multi-parameter macro-measurement system design /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487942739808246.
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Alday, Sandra Seno. "Internationalisation and Performance: Exploring Measurement Issues and the Impact of Measurement Alternatives." Thesis, The University of Sydney, 2011. http://hdl.handle.net/2123/7916.
Full textAbstract:
The impact of a firm’s internationalisation efforts on its performance is a core concern in the field of international business research. The question concerning the relationship between these two variables follows explicitly or implicitly as a corollary to the various established international business theories that seek to explain the motives, determinants and processes of firm internationalisation. In a real sense the predicted performance impact of internationalisation serves not only to inform strategic decision-making on the different aspects of the internationalisation process but also to rationalise the very endeavour of firm internationalisation itself. Indeed, benefits from internationalisation are expected to accrue to the firm and be reflected in some manner on a key performance indicator (or set of performance indicators), serving as an incentive (or disincentive) for the firm to embark on the process of internationalisation and absorb all its inherent costs and risks. Thus, the centrality of the relationship between internationalisation and performance in the field of international business firmly establishes it as a, if not the, “big question” in international business research (Peng, 2004). It is implicit in all endeavours under the international business research umbrella (Glaum & Oesterle, 2007), and certainly explicit in all international strategic management decision-making. Unfortunately, however, more than 50 years of research in international business and close to 40 years of research specifically focused on the relationship between internationalisation and performance have consistently yielded inconsistent results. An examination of the internationalisation-performance studies conducted over the past 40 years yields critical clues to the sources of the persistent disagreement in the literature. This thesis specifically highlights one specific factor that can contribute to explaining the inconsistencies in the literature thus far: that is, the fundamental lack of agreement on the appropriate internationalisation and performance measures to employ. The current study thus comprehensively evaluates the various internationalisation and performance measures in the extant internationalisation-performance literature, representing research conducted over 40 years in the field of international business. Finding the extant measures to be wanting, the study then proceeds to propose the Internationalisation Coefficient (IC) as a more theoretically grounded measure of firm internationalisation that better captures the conceptualisation of the firm and of the phenomenon of internationalisation in international business theories. Unlike extant measures of firm internationalisation, the proposed IC brings to light both firm-specific attributes and international environment-specific attributes and compares the locational dispersal of these two attributes. It is suggested that the truly global or international firm will exhibit a close match between the locational dispersal of firm-specific attributes and international-environment attributes. This is because the truly global firm must be able to effectively overcome its liability of foreignness in order to exploit its advantages in other markets or harness location-specific advantages in certain international locations. The thesis then employs the IC along with other extant measures of internationalisation to re-examine the degree of internationalisation of a sample of the Fortune Global 500 firms over a 5-year period from 2005 to 2009. The empirical analysis confirms that the IC is a new and statistically distinct measure of internationalisation, capable of providing fresh and deep insights on the internationalisation patterns of firms with significant results. The analysis likewise confirms that the employment of different measures of internationalisation will result in different conclusions regarding the degree of internationalisation of the same set of firms, given that the different measures capture different dimensions of the internationalisation phenomenon. The thesis further explores the impact of employing various measures on the resulting nature and shape of the internationalisation-performance relationship. The same sample of Fortune Global 500 firms is utilised, and the relationship is longitudinally analysed over the period from 2005 to 2009 and over a shorter period from 2005 to 2007, with both sets of regressions yielding significant results. The thesis confirms that employing different measures of both internationalisation and performance result in different conclusions regarding the nature and shape of the internationalisation-performance relationship. The results confirm the importance of the IC in offering deeper and richer insights regarding firm internationalisation, and lend support to the argument that the key to productively challenging the frontiers of the internationalisation-debate is in the employment of appropriate measures designed to truly capture the theoretical essence of the constructs involved. The results further provide some empirical support to Hennart’s interpretation of the transaction cost/ internalisation theories of international business (2007), which predicts the internationalisation patterns of firms and the resulting impact on performance. The results also provide partial support to the multi-stage relationship between internationalisation and performance (Contractor, 2007). The thesis primarily makes a contribution to the internationalisation-performance literature, extending the frontiers of the debate by approaching it from the angle of measurement. Notably, it proposes a theoretically and statistically robust measure of firm internationalisation that can be employed in a flexible manner to test and revisit international business theories. The implications for international business research and theory development are significant, and are discussed in the concluding chapter.
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Aron, Jason S. "Measurement System and Campaign for Characterizing the Theoretical Capacity and Cross-Correlation of Multiple-Input Multiple Output Indoor Wireless Channels." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31730.
Full textAbstract:
The demands for greater capacity and lower transmitted power have historically motivated
research in spatial diversity systems. Diversity techniques have been implemented in many
current systems and have been shown to reduce the transmit power required to maintain
acceptable system performance. Traditionally spatial diversity is based on the transmission and
reception of a single stream of symbols through independent and spatially separated propagation
channels. In more recent developments, space-time coding and array processing techniques use
diversity concepts to resolve multiple independent streams of data and increase the potential
data-rate. This new space-time research investigates the unprecedented ability to simultaneously
transmit separate data streams from many closely-spaced antennas on a common carrier
frequency. The effectiveness of these multi-element arrays in communication systems has been
found to depend on antenna design and specific characteristics of the propagation channels. This
thesis describes an effort to characterize an indoor office environment with respect to these
applications.
<p>
Theoretical analyses have demonstrated a relationship between the theoretical capacity of multi-element
array systems with the cross-correlation of spatially separated channels. Historical
measurements have also shown that in the presence of Rayleigh fading, antenna spacing may be
used to control the level of correlation between propagation channels and maximize the diversity
gain, or potential system capacity of a space-time system. Both the design of the antenna arrays
and characteristics of the propagation environment influence a systemâ s potential capacity.
<p>
This thesis describes the construction of a measurement system and the use of this system to
evaluate the capacity gains of multi-element arrays in a wireless communication system. The
presented system is capable of measuring the channel gains between a number of transmitter and
receiver antenna elements and calculating both the cross-correlation between channel gains and
the theoretical system capacity. After a discussion of previous research, the measurement system
and subsequent measurement results are described.<br>Master of Science
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Rashid, Muhammad, and Mumtaz Mutarraf. "Remote Surveillance and Measurement." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2196.
Full textAbstract:
<p>Wireless Sensor Network (WSN), a collection of “sensor nodes” promises to change the scientist’s approach of gathering the environmental data in various fields. Sensor nodes can be used for non-stop sensing, event detection, location sensing and local control of actuators, this concept gives surety to many latest application areas like agriculture, military, home or factory automation, logistics and so on. Remote surveillance and measurement missions can be performed by using WSNs. The hot research topic now-a-days is to make such networks remotely controllable and adaptive to the environment and mission.</p><p> </p><p>The work carried out in this thesis is the development of a surveillance application using TinyOS/nesC. The purpose of this application is to perform event-detection mission by using any one of the built-in sensor on Mica2 motes as well as a setup protocol is designed to make the WSN remotely controllable and adaptive to the mission. In this thesis, an experimental work is also performed using TinyDB to build up a surveillance system whose purpose is to detect and count the total number of person present at any time in a given room and to view the results at a remote place. Besides these two system applications, a comparative study between TinyDB and nesC is described which concludes that more hardware control can be achieved through nesC which is a more power efficient platform for long-term applications.</p>
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Johansson, Tore. "Sound Level Measurement System." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7924.
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<p>The purpose of this master thesis work is to design a device that measures the loudness of sound for different frequencies. This device is divided in three parts; a microphone that captures the sound, one A/D converter that samples the sound and one FPGA which analyse the data using an FFT algorithm.</p><p>LEDs connected to the FPGA are used to indicate different output levels. A db(A) filter is applied that weights each frequency, before the different outputlevels are measured for each frequency. </p><p>This system is supposed to be a subsystem to a larger system that is developed in a company. However, because of the risk that competitors might be able to guess the next product move of the company, the company is anonymous in this report. All the components used are paid for by the company and in return the company gets an idea of the complexity of the system and a basis for future design decisions.</p>
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Myronenko, Yana. "Productivity : -measurement and improvement." Thesis, KTH, Fastigheter och byggande, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102214.
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The objective of this paper is to analyze methods of measurement of labor productivity and introduce them to real business. The object of this paper is to investigate methods of measuring performance. The subject of this paper is the process of implementing methods to increase productivity. Methods (procedures) of the study. Pattern during the writing of this work was used by scientists articles information about the measurement and implementation of systems productivity. Recommendations for the use of this work. Since this work was written with the use of different methods and examples, not all of them before writing the work was known to me, I want to present a certain part to improve the productivity of some companies in my country.
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Kwong, Sunny Kai-Sun. "Price-sensitive inequality measurement." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25807.
Full textAbstract:
The existing inequality indexes in the economics literature (including the more sophisticated indexes of Muellbauer (1974) and Jorgenson-Slesnick (1984)), are found to be insensitive to relative price changes or are unjustifiable in terms of social evaluation ethics or both. The present research fills this gap in the literature by proposing a new index, named the Individual Equivalent Income (IEI) index.
A household indirect utility function is hypothesized which incorporates certain attribute parameters in the form of equivalence scales. These attributes are demographic and environmental characteristics
specific to a given household. This indirect utility function gives a number which represents the utility of each member of the household. A particular level of interpersonal comparison of utilities is assumed which gives rise to an exact individual utility indicator named equivalent income. A distribution of these equivalent incomes forms the basis of a price-sensitive relative inequality index.
This index can be implemented in the Canadian context. Preferences
are assumed to be nonhomothetic translog and demand data are derived from cross-section surveys and time-series aggregates. Based on demand data, the translog equivalent income function can be estimated and equivalent incomes imputed to all individuals in society. An Atkinson index of equivalent incomes is then computed to indicate the actual degree of inequality in Canada.
The new IEI index is compared with other indexes based on a common data set. The main findings are: conventional indexes give bad estimates of the true extent of inequality and the IEI index, while providing a more accurate estimate, indicates distributive price impact in a predictable manner, i.e., food price inflation aggravates while transportation price inflation ameliorates the inequality problem.<br>Arts, Faculty of<br>Vancouver School of Economics<br>Graduate
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Berry, Michael CSE UNSW. "Assessment of software measurement." Awarded by:University of New South Wales. CSE, 2006. http://handle.unsw.edu.au/1959.4/25134.
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Background and purpose. This thesis documents a program of five studies concerned with the assessment of software measurement. The goal of this program is to assist the software industry to improve the information support for managers, analysts and software engineers by providing evidence of where opportunities for improving measurement and analysis exist. Methods. The first study examined the assessment of software measurement frameworks using models of best practice based on performance/success factors. The software measurement frameworks of thirteen organisations were surveyed. The association between a factor and the outcome experienced with the organisations' frameworks was then evaluated. The subsequent studies were more info-centric and investigated using models of information quality to assess the support provided for software processes. For these studies, information quality models targeting specific software processes were developed using practitioner focus groups. The models were instantiated in survey instruments and the responses were analysed to identify opportunities to improve the information support provided. The final study compared the use of two different information quality models for the assessing and improving information support. Assessments of the same quantum of information were made using a targeted model and a generic model. The assessments were then evaluated by an expert panel in order to identify which information quality model was more effective for improvement purposes. Results. The study of performance factors for software measurement frameworks confirmed the association of some factors with success and quantified that association. In particular, it demonstrated the importance of evaluating contextual factors. The conclusion is that factor-based models may be appropriately used for risk analysis and for identifying constraints on measurement performance. Note, however, that a follow-up study showed that some initially successful frameworks subsequently failed. This implied an instability in the dependent variable, success, that could reduce the value of factor-based models for predicting success. The studies of targeted information quality models demonstrated the effectiveness of targeted assessments for identifying improvement opportunities and suggest that they are likely to be more effective for improvement purposes than using generic information quality models. The studies also showed the effectiveness of importance-performance analysis for prioritizing improvement opportunities.
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Merry, Heather Raylene. "Measurement of genetic relatedness." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24882.pdf.
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Carter, Stephen Douglas. "Corporate treasury performance measurement /." Title page, contents and conclusions only, 1990. http://web4.library.adelaide.edu.au/theses/09EC/09ecc3251.pdf.
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Kugler, Karen E. "Guilt conceptualization and measurement /." Access abstract and link to full text, 1989. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9010199.
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Ibrahim, Abba A. "Intelligent Multiphase Flow Measurement." Thesis, Cranfield University, 2009. http://hdl.handle.net/1826/4082.
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The oil and gas industry’s goal of developing high performing multiphase flow metering
systems capable of reducing costs in the exploitation of marginal oil and gas reserves, especially
in remote environments, cannot be over emphasised.
Development of a cost-effective multiphase flow meter to determine the individual phase flow
rates of oil, water and gas was experimentally investigated by means of low cost, simple and
non-intrusive commercially available sensors. Features from absolute pressure, differential
pressure (axial), gamma densitometer, conductivity and capacitance meters, in combination
with pattern recognition techniques were used to detect shifts in flow conditions, such as flow
structure, pressure and salinity changes and measured multiphase flow parameters
simultaneously without the need for preconditioning or prior knowledge of either phase.
The experiments were carried out at the National Engineering Laboratory (NEL) Multiphase
facility. Data was sampled at 250 Hz across a wide spectrum of flow conditions. Fluids used
were nitrogen gas, oil (Forties and Beryl crude oil – D80, 33o API gravity) and water (salinity
levels of 50 and 100 g/l MgSO4). The sensor spool piece was horizontally mounted on a 4-inch
(102mm) pipe, and the database was obtained from two different locations on the flow loop.
The ability to learn from ‘experience’ is a feature of neural networks. The use of neural
networks allows re-calibration of the measuring system on line through a retraining process
when new information becomes available. Some benefits and capabilities of intelligent
multiphase flow systems include:
Reduction in the physical size of installations.
Sensor fusion by merging the operating envelopes of different sensors employed
provided even better results.
Monitoring of flow conditions, not just flow rate but also composition of components.
Using conventional sensors within the system will present the industry with a much
lower cost multiphase meter, and better reliability.
Comment [HS1]: I think this word
should be measured to make the sentence
read correctly.
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Bashir, Saghir Ahmed. "Measurement error in epidemiology." Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264544.
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Davies, Gareth. "Measurement methods in biomagnetism." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267283.
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Fry, Andrew J. "Aspects of measurement validation." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343358.
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