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Tesi sul tema "Machinery"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Herman, Paul Andrew. "Improvement of surface finish quality in peripheral milling VIA precision compensation for cutter runout." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16696.

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2

KöÅ, er Hür 1976. "Development of magnetic induction machines for micro turbo machinery." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8119.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.<br>Includes bibliographical references.<br>This thesis presents the nonlinear analysis, design, fabrication, and testing of an axial-gap magnetic induction micro machine, which is a two-phase planar motor in which the rotor is suspended above the stator via mechanical springs, or tethers. The micro motor is fabricated from thick layers of electroplated NiFe and copper, by our collaborators at Georgia Institute of Technology. The rotor and the stator cores are 4 mm in diameter eac

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3

Tombs, George 1956. "Man the machine : a history of a metaphor from Leonardo da Vinci to H. G. Wells." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84203.

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During the Italian Renaissance, artists and anatomists compared man to various mechanical devices, in an attempt to uncover knowledge about the structure and processes of the human body. In so doing, they drew on ancient Greek notions of instrumentality and proportion. During the early Scientific Revolution, the metaphor of Man the machine played a key role in the development of mechanistic philosophy. During the Enlightenment, it served views on materialism and atheism. By the nineteenth century, when the Industrial Revolution was in full swing, a fundamental change in the relationship

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4

Moss, T. R. "Rotating machinery reliability." Thesis, Loughborough University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311046.

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5

Udovychenko, N. M. "Machinery vibration diagnostics." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33874.

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Vibration is a process that can not be measured, unlike its parameters. The machine can have high levels of vibration for three reasons: – there is a strong source of vibration inside the machine; – during spreading between source of vibration and the point of observation, vibration weakly damped or even increases due to good conductivity and transparency of the surrounding structures; – there are two previous reasons simultaneously. For solving the first problem we have to explore the physical nature of vibration inside the machine. For solving the second problem it's necessary to invest

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6

Filla, Reno. "Operator and Machine Models for Dynamic Simulation of Construction Machinery." Licentiate thesis, Linköping : Linköpings universitet, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4092.

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7

Kivistö-Rahnasto, Jouni. "Machine safety design : an approach fulfilling European safety requirements /." Espoo [Finland] : Technical Research Centre of Finland, 2000. http://www.vtt.fi/inf/pdf/publications/2000/P411.pdf.

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8

Angola, Enrique. "Novelty Detection Of Machinery Using A Non-Parametric Machine Learning Approach." ScholarWorks @ UVM, 2018. https://scholarworks.uvm.edu/graddis/923.

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A novelty detection algorithm inspired by human audio pattern recognition is conceptualized and experimentally tested. This anomaly detection technique can be used to monitor the health of a machine or could also be coupled with a current state of the art system to enhance its fault detection capabilities. Time-domain data obtained from a microphone is processed by applying a short-time FFT, which returns time-frequency patterns. Such patterns are fed to a machine learning algorithm, which is designed to detect novel signals and identify windows in the frequency domain where such novelties occ

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9

Seaman, Matthew N. J. "Targeting machinery for adaptors." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339587.

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10

Fenney, Lee. "Flexible high speed machinery." Thesis, Aston University, 1989. http://publications.aston.ac.uk/11882/.

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The thesis describes an investigation into methods for the design of flexible high-speed product processing machinery, consisting of independent electromechanically actuated machine functions which operate under software coordination and control. An analysis is made of the elements of traditionally designed cam-actuated, mechanically coupled machinery, so that the operational functions and principal performance limitations of the separate machine elements may be identified. These are then used to define the requirements for independent actuators machinery, with a discussion of how this type of

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11

Crane, Nathan B. "Compliant centrifugal clutches : design, analysis, and testing /." Diss., CLICK HERE for online access, 1999. http://contentdm.lib.byu.edu/ETD/image/etd223.pdf.

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12

Thapa, Bhola. "Sand Erosion in Hydraulic Machinery." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-302.

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<p>The topic of this thesis is damage of hydraulic machinery due to sand erosion. This is a very broad topic in which all the aspects of design of hydraulic machinery namely material selection; mechanics of material and hydraulics are involved. The issue of sand erosion is equally important for operation and maintenance of hydropower plants.</p><p>The erosion damage of turbines of hydropower plants in Himalayan Rivers, in particular in Nepal, due to high sediment contents in river is a motivating factor for this research. The findings of this study are believed to help to reduce erosion of tur

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13

Edwards, S. "Fault diagnosis of rotating machinery." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636771.

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In this thesis, topics of importance to the fault diagnosis of rotating machinery in the power generation industry have been addressed, including a review of the relevant literature and an overview of the associated rotordynamics modelling and analysis techniques. For faults involving rotor-stator interaction it has been shown that the inclusion of torsion in mathematical models used for rotor-stator contract analyses can have a significant influence on the dynamic behaviour of the system. A 3 degrees-of-freedom model based on the Jeffcott rotor was developed and, for physically realistic syst

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14

Cockerill, Aaron. "Damage detection of rotating machinery." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/105671/.

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Acoustic emission (AE) is an emerging technique for the condition monitoring of rotating machinery components, including both rolling element bearings and gears. Due to the high frequency range over which AE is sensitive to, AE potentially offers advantages for detection of incipient damage at an early stage of failure when compared to traditional techniques such as vibration. This thesis first investigates the effects of increased speed and load on the generation of AE within cylindrical roller bearings, and determines similarities and differences between AE and vibrational data. A traditiona

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15

Ross, Katharina. "The mitochondrial protein import machinery." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/16024.

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Menschliche Mitochondrien enthalten etwa 1500 bis 2000 Proteine. Die meisten dieser Proteine werden im Zellkern kodiert und im Zytoplasma synthetisiert, und müssen daher über eine spezielle Maschinerie in die Mitochondrien transportiert werden. Obwohl mittlerweile viele Details über die Wirkungsweise dieser Proteinschleusen bekannt sind, wurden einige wichtige Aspekte des Proteinimports noch nicht ausreichend untersucht. Zum einen ist nicht bekannt, ob die einzelnen Importkomplexe einen Einfluss auf die mitochondrienvermittelte Apoptose haben. Weiterhin ist offen, welche genaue Rolle der Mitoc

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16

Zhang, Cheng. "Defect detection and life prediction of rolling element bearings." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17658.

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17

Cho, Junhee. "Dynamic modeling and analysis for swash-plate type axial pump control utilizing indexing valve plate /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9974614.

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18

Sandbakken, Egil Christoffer. "Marine Machinery Systems - Tools and Architecture." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11614.

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The thesis presents tools and architecture regarding design of marine MSs in OSVs. It enlightens important aspects regarding the design based on a research study, and proposes a design methodology consisting of tools and architecture. From the research studies in chapter 2 it becomes clear that the most common propulsion system today for platform supply vessels (PSV) is the diesel-electric (DEL) propulsion system. Other concepts such as; dual fuel engines, Voith Schneider Propellers (VSP), hybrid systems, fuel cell power, wind power, nuclear power, and jet propulsion exist today but is not yet

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19

Zirkelback, Nicole Lisa. "Ritz series analysis of rotating machinery." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17562.

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20

Gutierrez-Wing, Enrique Simon. "Modal analysis of rotating machinery structures." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409293.

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21

Hameister, Heike. "Mathematical models for DNA replication machinery." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186178.

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Abstract (sommario):

DNA replication and associated processes take place in all living organisms with the same constitutions. The knowledge of the duplication process, chromatin building and repair mechanisms has increased explosively over the last years, but the complex interplay of different proteins and their mechanisms are not conceived properly. During DNA replication, the DNA has to be unpacked, duplicated and finally repacked into chromatin. These steps require different proteins, e.g. new histone proteins on demand to secure an error-free and undelayed DNA replication. This thesis includes different mathem

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22

鄭俊強 and Chun-keung Cheng. "The machinery import market in China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1992. http://hub.hku.hk/bib/B31265236.

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23

Jenkins, Michael David. "Active control of periodic machinery vibrations." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480701.

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24

Gouvinhas, Reidson Pereira. "Design methods for production machinery companies." Thesis, Cranfield University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266983.

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25

McCarthy, Daniel Joseph. "Vibration-based diagnostics of reciprocating machinery." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/10823.

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26

Walker, Ryan. "Localising imbalance faults in rotating machinery." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8606.

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This thesis presents a novel method of locating imbalance faults in rotating machinery through the study of bearing nonlinearities. Localisation in this work is presented as determining which discs/segments of a complex machine are affected with an imbalance fault. The novel method enables accurate localisation to be achieved using a single accelerometer, and is valid for both sub and super-critical machine operations in the presence of misalignment and rub faults. The development of the novel system for imbalance localisation has been driven by the desire for improved maintenance procedures,

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27

Ward, Jennifer. "Tool development to study ubiquitination machinery." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/43327.

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Abstract (sommario):

Ubiquitination is a diverse post-translational modification, involved in a plethora of eukaryotic processes. At least three different enzymes are required for ubiquitination to occur: an ubiquitin-activating enzyme (E1), an ubiquitin-conjugating enzyme (E2) and an ubiquitin ligase (E3). Conversely, deubiquitinating enzymes (DUBs) regulate the removal of ubiquitin modifications. Together, this enzymatic machinery facilitates a wide array of ubiquitin modifications and further ubiquitin-like modifications. Such modifications play a significant role in the regulation of vital biological processes

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28

Sinha, Jyoti K. "Health monitoring techniques for rotating machinery." Thesis, Swansea University, 2002. https://cronfa.swan.ac.uk/Record/cronfa42376.

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The present research is concerned with health monitoring techniques for rotating machinery, for example Turbogenerator (TG) sets in the power industry. Vibration based condition monitoring is widely accepted for rotating machinery and hence the vibration response of a machine is again utilized in the present research study. Experience shows that faults develop in rotating machines during normal operation and hence their quick identification and remedy are important from safety and plant productivity considerations. The vibration based fault identification procedures are well developed for rota

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29

Bury, A. S. "Torsional vibration problems in reciprocating machinery." Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/34851.

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Torsional vibration can be broadly described as the angular vibration of any object as a result of applied torque. Torsional vibration involves the twisting of shafts while the machinery is rotating. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34851

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30

Lau, M. W. S. "Active vibration control at machinery feet." Thesis, Aston University, 2000. http://publications.aston.ac.uk/15340/.

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The unmitigated transmission of undesirable vibration can result in problems by way of causing human discomfort, machinery and equipment failure, and affecting the quality of a manufacturing process. When identifiable transmission paths are discernible, vibrations from the source can be isolated from the rest of the system and this prevents or minimises the problems. The approach proposed here for vibration isolation is active force cancellation at points close to the vibration source. It uses force feedback for multiple-input and multiple-output control at the mounting locations. This is part

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31

Cheng, Chun-keung. "The machinery import market in China /." [Hong Kong : University of Hong Kong], 1992. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13302140.

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32

Määttä, Timo. "Virtual environments in machinery safety analysis /." Espoo [Finland] : VTT Technical Research Centre of Finland, 2003. http://www.vtt.fi/inf/pdf/publications/2003/P516.pdf.

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Diss. -- Tampereen teknillinen yliopisto. Thesis (doctoral)--Tampere University of Technology, 2004.<br>Includes bibliographical references (p. 153-170). Myös verkkojulkaisuna. Also available on the World Wide Web.

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33

Sokola, Matija. "Vector control of induction machines using improved machine models." Thesis, Liverpool John Moores University, 1998. http://researchonline.ljmu.ac.uk/4899/.

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34

Ridgway, Ian Gilbert. "Prototype combine for grain harvesting based on internal pneumatic transfer /." Title page, table of contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09AFM/09afmr5447.pdf.

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35

Ponnaluru, Srinivasa Sasdhar. "Empirical analysis of used construction equipment and auction house revenues." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Fall2009/s_ponnaluru_120109.pdf.

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36

Ganguli, ABHIJIT. "Chatter reduction through active vibration damping." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210980.

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The aim of the thesis is to propose active damping as a potential control strategy for chatter instability in machine tools.<p>The regenerative process theory explains chatter as a closed loop interaction between the structural dynamics and the cutting process. This is considered to be the most dominant reason behind machine tool chatter although other instability causing mechanisms exist.<p>The stability lobe diagram provides a quantitative idea of the limits of stable machining in terms of two physical parameters: the width of contact between tool and the workpiece, called the width of cut a

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37

Chik, Pui Chi Flora. "Targeting the DNA methylation machinery in cancers." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114316.

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Cancer cells have aberrant DNA methylation patterns which are characterized by hypomethylation of a large set of promoters and hypermethylation of tumor suppressor genes. The dynamic nature of the epigenome makes it a valuable target for therapeutic interventions. This thesis focuses on understanding the use of various inhibitors towards DNA methylation-related proteins and their respective anti-cancer activities at both global and gene-specific levels. The widely used demethylating agent 5-azacytidine and 5-aza-2'-deoxycytidine (5-azaCdR) are FDA-approved drugs for the treatment of myelodyspl

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38

Moorhouse, Andrew Thomas. "Structureborne emission of installed machinery in buildings." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279723.

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39

Rushforth, E. J. "Mechatronic design of high-speed packaging machinery." Thesis, Loughborough University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285913.

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40

Bentley, Darren. "Intelligent control of complex soil tillage machinery." Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399714.

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41

Cotta, William Joseph. "Machinery diagnostics and characterization through electrical sensing." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100144.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 149-151).<br>Two methods of non intrusive sensing and their applications for machinery condition monitoring, energy score keeping, and human activity are presented here. The first method uses existing research on Non Intrusive Load Monitoring (NILM) to refine transient detection methods using image classification techniques. Additionally building on the NilmDB framework, a new framework, TransientDB, is proposed

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42

Dietz, Anthony, Eric Friets, William Finger, Jerry Bieszczad, Matt Miller, and Lawrence Freudinger. "ONLINE DISTRIBUTED VEHICLE AND MACHINERY HEALTH MANAGEMENT." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/605375.

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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>Modern aircraft and space vehicles routinely sense and record vast quantities of information relevant to assessing the vehicles’ health. However, limitations imposed by the bandwidth of telemetry and network connections prevent real-time transmission of the complete data set to central stations for analysis. An online health-management system suitable for bandwidth-limited network environments that enables interrogation of the full data set by ground-based ope

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43

He, Bin. "Drainage effect on machinery size and cost." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1202233841.

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44

Ahmadi, Farzad. "Magnetic Micro- and Nanostructures for Electrical Machinery." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1544521347564228.

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45

Xiong, Huanbao. "Machinery selection and scheduling model for Virginia." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-07102009-040441/.

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46

Glascock, Leslie A. "Increasing the conspicuity of agricultural machinery extremities." Connect to resource, 1995. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1202415272.

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47

Sloberg, Hanna, and Sara Nilsson. "Internal Marketing Communication : Alpha, a Machinery Business." Thesis, Karlstads universitet, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-73548.

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The aim of this study is to investigate the effectiveness of the internal communication, as a dimension of internal marketing, in a global multicultural company. The study was based on a conceptual model that is a miscellany of theoretical concepts of how to create effective internal marketing communication for global organizations. Through the investigation of the company referred to as Alpha, a quantitative study across six countries was conducted to further the knowledge on how to address the needs of internal customers and adjust the internal marketing strategy thereafter. A questionnaire

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48

Gotin, Nathalie. "Finite Element Model Updating for Rotary Machinery." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/864.

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The main approach of this thesis was to develop a mathematical model that represents a rotary machine. Experimental data was used to define a finite element model (FEM). In order to obtain the experimental data, the rotary machine had to be balanced. An impact hammer test made it possible to obtain frequency response functions (FRF). The frequency response functions were curvefitted in order to obtain the mode shapes and natural frequencies. Mathematical models have been created with ABAQUS and Matlab. For the Matlab Model the assumption has been made that the rotor machine consists of a speci

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49

Alzuhd, Tahir Hussein Hasan. "Pressure losses associated with slurry flow in horizontal pipelines." Thesis, University of Hertfordshire, 2003. http://hdl.handle.net/2299/14146.

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The flow of solid liquid mixtures (slurries) has attracted much attention in research work because of its importance to industry. Prediction of pressure losses associated with slurry flow helps pipe designers select the correct pipe sizes for optimum energy consumption, equipment sizing and reliable operation of the pipeline networks. Many workers developed empirical correlations, but due to the randomness of the problem they seem of limited use in design applications because they do not contain an assessment except by trial and error, which is costly. The existence of more than one particle s

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50

Foster, Christopher A. "Intelligent control study of drive-by-wire agricultural vehicles." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 3.19 Mb., 221 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3221073.

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