Rozprawy doktorskie na temat „Assembly”
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Donaldson, James Ellsworth. "assembly of: architectrure: of assembly". Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/34351.
Pełny tekst źródłaMaster of Architecture
Purdy, John Gerard Craven Rebecca C. "To assemble, or not to assemble the initiation of retroviral capsid assembly /". [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-4649/index.html.
Pełny tekst źródłaDillenback, Lisa M. Keating Christine Dolan. "Self-assembly and controlled assembly of nanoparticles". [University Park, Pa.] : Pennsylvania State University, 2008. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-2613/index.html.
Pełny tekst źródłaMarehalli, Jayavardhan N. "Assembly Sequence Optimization and Assembly Path Planning". Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/44837.
Pełny tekst źródłaMaster of Science
Falcone, Sara Elizabeth. "Zipped assembly". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129871.
Pełny tekst źródłaCataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 70-71).
Biology creates assemblies with orders of magnitude more parts than any known human designed process. Molecular biology functions on the premise that fundamental building blocks assemble into chains, are zipped into strands and folded into structures. This thesis is a macroscale implementation that aims to do the same, assemble, zip and fold, in an inorganic system. This system, Zipped, utilizes distributed coalescence of parts, aiming for faster assembly while incorporating error correction into the fabrication process. This thesis presents a design for 0-dimensional building blocks that snap together to form 1-dimensional strands. Strands zip together, interlocking to form 2-dimensional beams that can branch and merge to create patterns or flat sheets. Strands can zip to each other out of plane as well, allowing 3-dimensional construction.
All steps of the construction process are reversible; parts can be assembled, dis-assembled and re-assembled without damage to the part or altering structural performance. No energy, formwork or pre-load is required to maintain the parts position once it is assembled. The system can assemble rigid as well as flexural elements, including chains and revolute joints. Increased stiffness or flexibility can be designed into structures by changing strand geometry and zipping. This ability to tune local structural properties allows actuators to be added to the construction system and form mechanisms. Zipped pieces are demonstrated as the structural element for a robot's body, which can locomote on itself or foreign terrain. Initial studies also demonstrate automated construction with this system. The fundamental principles of this system are demonstrated in many materials, via different manufacturing processes and across several scales, showing applicability to a diverse scenario space.
For ease of fabrication and lab use a centimeter scale part was selected and several thousand parts were manufactured. This 0-dimensional part is presented and used to form larger scale assemblies which are mechanically characterized. From here, mission architectures and real-world applications are described. The Zipped system enables human-scale, controlled and reversible assembly, zipping and folding. This allows reusability, reconfigurability and universality - attributes we often credit to nature.
by Sara Falcone.
S.M.
S.M. Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences
Titenko, A. І. "Assembly language". Thesis, Сумський державний університет, 2012. http://essuir.sumdu.edu.ua/handle/123456789/28614.
Pełny tekst źródłaHeslyk, Oskar. "Visual Assembly". Thesis, KTH, Arkitektur, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298507.
Pełny tekst źródłaKim, Joan. "Assembly furniture". Thesis, University of Iowa, 2019. https://ir.uiowa.edu/etd/6781.
Pełny tekst źródłaUstun, Cevat. "Improving genome assembly". College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2957.
Pełny tekst źródłaThesis research directed by: Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Fox, Michael Jacob. "Stochastic self-assembly". Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34741.
Pełny tekst źródłaRekiek, Brahim. "Assembly line design". Doctoral thesis, Universite Libre de Bruxelles, 2001. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211676.
Pełny tekst źródłaCHANG, MING, i MOHAMAD TALIB. "Design for assembly". Thesis, KTH, Tillämpad maskinteknik (KTH Södertälje), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-138008.
Pełny tekst źródłaNg, Yau-man Ivan, i 吳優文. "HKSAR legislative assembly". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31982165.
Pełny tekst źródłaMairopoulos, Dimitrios. "M-Cell assembly". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99294.
Pełny tekst źródłaCataloged from PDF version of thesis. "June 2015."
Includes bibliographical references (page 47).
In this thesis I propose a self- assembly procedure called the Morphocell(M-Cell) assembly. This procedure is based on an assembly unit called the M-Cell. The M-Cell is comprised out of two components, the M-Block and the M-Clay (in which the M-Block is embedded). During the assembly procedure the M-Clay acts as the environment of the assembly for the M-Blocks. This allows a global, parallel assembly that is highly autonomous and has large error correcting capacities. When the assembly procedure is complete the M-Blocks have assembled into a spatial lattice. Then the M-Clay surrounds this lattice thus creating a solid object, the M-Object. The M-Object, which is the goal of this procedure, is a dynamic object that can be easily modified, expanded or dismantled. Furthermore, it can respond in various ways to its environment. This system was optimized though a feedback loop that was informed by constant digital and physical simulations. The findings of this thesis can have important applications in construction of structures in extreme-remote environments and in the fabrication-rapid prototyping field.
by Dimitrios Mairopoulos.
S.M.
Waring, Thomas George. "Integrated silicon assembly". Thesis, University of Edinburgh, 1990. http://hdl.handle.net/1842/13210.
Pełny tekst źródłaDunn, Katherine Elizabeth. "DNA origami assembly". Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:dff1bafd-e355-4df5-968b-b0deb7e6f44f.
Pełny tekst źródłaSpanton, Robert. "Stateful self-assembly". Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/355888/.
Pełny tekst źródłaLackmann, Fredrik. "Nucleolar Ribosome Assembly". Doctoral thesis, Stockholms universitet, Institutionen för molekylär biovetenskap, Wenner-Grens institut, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-145639.
Pełny tekst źródłaAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Manuscript. Paper 4: Manuscript.
Chen, Ho-Lin. "Robust self-assembly /". May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Pełny tekst źródłaNg, Yau-man Ivan. "HKSAR legislative assembly". Hong Kong : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25945233.
Pełny tekst źródłaCline, John Michael. "A Solemn Assembly". Digital Commons @ East Tennessee State University, 2005. https://dc.etsu.edu/etd/1012.
Pełny tekst źródłaEngel, Stephanie Vanessa. "Assembly von Influenzaviren". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/15918.
Pełny tekst źródłaIt has been supposed that the hemagglutinin (HA) of influenza virus is recruited to cholesterol- and sphingolipid-enriched domains, also named membrane-rafts, to accomplish its function in virus budding and membrane fusion. This study aimed at verifying the affinity of HA for membrane-rafts in living cells using fluorescence-lifetime imaging microscopy to measure Förster’s resonance energy transfer (FLIM-FRET). FLIM-FRET revealed strong clustering between a fluorescence-tagged HA-protein and a well-established raft-marker in CHO cells. Clustering was significantly reduced when rafts were disintegrated by cholesterol depletion and when microfilaments were disrupted with cytochalasin D. Thus, membrane-rafts as well as the actin meshwork contribute synergistically to clustering. Clustering was also reduced by the removal of the known signals for the association of HA with detergent-resistant-membranes, the palmitoylation and the first amino acids in the transmembrane region (TMR). Since these mutations are obviously important for the raft-association of HA their function during the transport through the ER and the Golgi-complex was studied. These investigations showed that the exchange of the first three amino acids of the HA-TMR led to a decelerated transport after trimer-formation of the protein, probably due to retarded integration of these proteins into membrane-raft domains. Mediating viral fusion with the host cell membrane requires an irreversible conformational change of HA. FLIM-FRET studies of this low pH conformation unveiled that the clustering with the raft-marker is decisively reduced compared to the pre-fusion conformation of the protein. It might be assumed that the fusion-mediating conformation of HA reduces the proteins affinity for membrane-rafts. Therefore it is likely that this reduced affinity for rafts after the conformational change is relevant to cause perturbation of lipids at the fusion site and thereby facilitating the formation and/or enlargement of the fusion pore.
Höfer, Chris Tina. "Influenza virus assembly". Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17251.
Pełny tekst źródłaInfluenza A viruses have a segmented single-stranded RNA genome, which is packed in form of viral ribonucleoprotein (vRNP) complexes. While the viral genome is replicated and transcribed in the host cell nucleus, assembly and budding of mature virus particles take place at the apical plasma membrane. Efficient virus formation requires delivery of all viral components to this site. While intrinsic apical targeting signals of the viral transmembrane proteins have been identified, it still remains poorly understood how the viral genome is transported and targeted into progeny virus particles. In this study, potential targeting mechanisms were investigated like the ability of vRNPs to associate with lipid membranes and the intrinsic ability of the viral nucleoprotein (NP) – which is the major protein component of vRNPs – for subcellular targeting. It could be shown that vRNPs are not able to associate with model membranes in vitro, which was demonstrated by flotation of purified vRNPs with liposomes of different lipid compositions. Results indicated, however, that the matrix protein M1 can mediate binding of vRNPs to negatively charged lipid bilayers. Intrinsic subcellular targeting of NP was further investigated by expression of fluorescent NP fusion protein and fluorescence photoactivation, revealing that NP by itself does not target cytoplasmic structures. It was found to interact extensively with the nuclear compartment instead and to target specific nuclear domains with high affinity, in particular nucleoli and small interchromatin domains that frequently localized in close proximity to Cajal bodies and PML bodies. An experimental approach was finally established that allowed monitoring the transport of vRNP-like complexes in living infected cells by fluorescence detection. It was possible to perform single particle tracking and to describe different stages of vRNP transport between the nucleus and the plasma membrane. A model of three-stage transport is suggested.
Windhof, Amanda. "Rubisco folding and oligomeric assembly: Detailed analysis of an assembly intermediate". Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-136192.
Pełny tekst źródłaAgarwal, Gunjan. "Selective assembly in deformable systems using templated assembly by selective removal". Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50571.
Pełny tekst źródłaIncludes bibliographical references (p. 140-143).
The current work presents the first demonstration of successful assembly of deformable polymer microspheres on patterned rigid substrates using Templated Assembly by Selective Removal (TASR). Also presented is a quantitative model for predicting the successful self-assembly of deformable materials using TASR. Successful assembly of silica microspheres using TASR on a silicon template carried out in previous work has established that the technique works effectively for assembly of hard materials on a rigid substrate. However, the situation for the assembly of soft materials is different. In systems comprising soft materials, the contact area between the two mating surfaces can potentially change via deformation which influences the shape matching between the component and the substrate that TASR relies on as its underlying principle. The contact area at the interface is in turn decided by the nature of contact between the two interacting surfaces. Therefore, the Hertzian elastic theory for contact between a sphere was used for deciding whether the assembly of two new materials is attributed to shape matching or to plastic deformation. In accordance with the stated hypothesis, it was concluded that the assembly of Polystyrene (PS) microspheres on a rigid substrate such as silicon will yield successful results. Experiments were conducted to confirm this deduction from theoretical analysis.
(cont.) The thesis presents simultaneous self assembly of 2 [mu]m diameter polystyrene microspheres on a patterned silicon template, where grids with uniformly well-matched hole sizes were completely filled demonstrating nearly 100% assembly yield while grids with varying hole sizes demonstrate selectivity in assembly. Quantitative comparison of the data on assembly of deformable systems with existing TASR models for non-deformable systems shows significant agreement. The predictive model for self assembly of deformable materials can pave the way for assessing the viability of trying out the assembly of a new material by comparing its parametric values with those that have already been successfully demonstrated and established.
by Gunjan Agarwal.
S.M.
Johnson, Joshua A. Dr. "Control of DNA Origami from Self-Assembly to Higher-Order Assembly". The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1577996668813983.
Pełny tekst źródłaMòdol, Cano Aitor 1993. "Role of RanGTP and spindle assembly factors in cilia assembly and function". Doctoral thesis, TDX (Tesis Doctorals en Xarxa), 2021. http://hdl.handle.net/10803/671696.
Pełny tekst źródłaHaskiya, Wasim. "Robotic assembly : chamferless peg-hole assembly operation from X/Y/Z directions". Thesis, De Montfort University, 2000. http://hdl.handle.net/2086/4816.
Pełny tekst źródłaLundström, Jonathan, i Emil Hörnberg. "Rotator assembly at Indexator". Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64058.
Pełny tekst źródłaExamensarbetet handlar om montering av rotatorer på Indexator. Målet är att ta fram en optimerad monteringsprocess som kan implementeras i Indexators fabrik utan svårigheter. Den nya monteringsprocessen kommer kräva en ny design på arbetsstationerna och nya testbänkar.Fyra koncept på monteringsprocessen togs fram, baserat på monteringens behov och målsättning. Efter utvärdering så modifierades de fyra koncepten till tre förslag på monteringsprocesser. Processerna balancerades, layouter utvecklades och simuleringsmodeller producerades för varje process. Varje förslag analyserades baserat på kostnad, prestanda, implementation,flexibilitet och arbetar-förhållande. Resultatet blev en stationär monteringsprocess och en 3Dsimulering gjordes för visualisering och förståelse. Den stationära monteringsprocessen har en kapacitet på 90 rotatorer per dag och reducerar behovet av montörer.Layouten för monteringsstationerna baseras på processens layout och har modifierats för ergonomiska aspekter. Inom monteringsstationerna så utvecklades layouten för att minimera antalet onödiga rörelser för montören. Testriggens design utvecklades genom att analysera de behov som fanns, skapa en kravspecifikation samt utvärdera och besluta om testprocedur, upplägg för testrigg och dess ingående komponenter. Testriggen uppfyller målsättningen som är att kunna mäta dynamiskt vridmoment, räkna partiklar för att säkerställa renhet i rotatorn och kunna utföra testningen självgående för att frigöra montören under testprogrammet.
Eskilander, Stephan. "Design for automatic assembly". Doctoral thesis, KTH, Production Engineering, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3128.
Pełny tekst źródłaSeran, Onur. "Visually Guided Robotic Assembly". Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1223353/index.pdf.
Pełny tekst źródłaScholand, Andrew Joseph. "Analysis-enhanced electronic assembly". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/18900.
Pełny tekst źródłaMcLachlan, Donald Stuart. "Flexible assembly cell manipulator". Thesis, University of Hull, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296278.
Pełny tekst źródłaWilliams, Richard James. "Enzyme assisted self-assembly". Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496231.
Pełny tekst źródłaManser, E. J. "Aspects of microtubule assembly". Thesis, Open University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484401.
Pełny tekst źródłaMoffat, Jonathan. "Assembly of biopolymer multilayers". Thesis, University of East Anglia, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435024.
Pełny tekst źródłaThomas, Joanne Marie. "Assembly of influenza viruses". Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326757.
Pełny tekst źródłaCarney, Matthew Eli. "Discrete cellular lattice assembly". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101845.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (pages 109-113).
Robotic assembly of discrete cellular lattices at super-hertz (>1Hz) assembly rates is shown to be possible by integrating the design of a modular robotic assembler with the specified lattice topology such that the lattice can itself be removed from the incremental assembly process. Limits to assembly rates are ultimately dependent on allowable error, system stiffness, and damping characteristics. Vibrations due to cyclical motions of the end-effector, locomotion system, and the dynamic response of an incrementally varying lattice must settle to acceptable ranges to enable engagement between end-effectors, discrete elements, and their affixing features to adjacent cells. For given system dynamics, longer settling times enables greater energy dissipation, and less error. With a greater allowable error at the interface, a shorter assembly cycle period can be attained. Passive alignment features designed into the robot end-effectors, locomotion systems, and the discrete lattice elements reduce the precision requirements of the assembly process by opening up the acceptable error range, thereby, enabling higher assembly cycle-rates. An experiment was performed to evaluate how an assembler locally referencing a lattice performed in comparison to a globally referenced assembler. The two assemblers were of similar kinematic form: both gantry-type CNC machines: a ShopBot and a custom built relative robotic assembler. The results showed superior performance by the global coordinate frame system. An error budget analysis of the two systems showed that the locally referenced, lattice based system had a larger more variable structural loop than the global coordinate frame ShopBot. The control experiment, demonstrated 0.1Hz assembly rates, while first order approximations predict a maximum 4Hz cycle for the specified interface geometry. Results show that in order to successfully assemble discrete cellular lattices at super-hertz rates the robot must itself become the local, instantaneous global coordinate frame such that the structural loop is absolutely minimized, while stiffness is maximized; at the instantaneous moment of assembly the structural loop of the robot must reference only itself.
by Matthew Eli Carney.
S.M.
Cheng, Diana I. "Magnetic assisted statistical assembly". Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45999.
Pełny tekst źródłaIncludes bibliographical references (p. 87).
The objective of this thesis is to develop a process using magnetic forces to assemble micro-components into recesses on silicon based integrated circuits. Patterned SmCo magnetic thin films at the bottom of recesses are used to provide forces to orient, align and retain micro-devices on silicon. The overall objective is to obtain functionalities not readily available from silicon device structures alone. This thesis was done in the context of assembling optoelectronic devices, specifically integrating vertical cavity surface emitting lasers (VCSELs), edge-emitting lasers (EELs), and light emitting diodes(LEDs) onto commercially processed Si-CMOS circuits. This method, magnetically assisted statistical assembly (MASA), incorporates past methods such as Fluidic Assisted Self- Assembly (FASA) and Recess Mounting with Monolithic Metalization (RM3). Specifically, MASA addresses the main limitation to the FASA method by adding a magnetic layer as a restraint to keep assembled components correctly positioned in recesses until the time bonding may occur. Thus, all components may be permanently bonded into place simultaneously saving both time and money. This thesis will present simulations using Ansoft's Maxwell 3d providing general behavioral intuition for the behavior of a device over a target magnetic substrate. These results include using a rectangle instead of a circular disc and making recess depths greater than 2pm to overcome gravitational forces when inverting the substrate. Patterns of SmCo magnetic material, based on results from the simulations, included 50x100[mu]m recesses containing either a solid rectangle, thirty 5x10[mu]m rectangular pads, eighteen 5x10m rectangular pads or four 5x10m rectangular pads.
(cont.) Patterns of SmCo material also were experimented with using 50x50 [mu]m square recesses containing either a solid square or nine 5x5[mu]m square pads. Experiments with various rectangular patterns showed evidence that upside down devices do not retain as well as right side up devices. It was also seen that four 5xl0[mu]m rectangular pads did not have enough magnetic material to retain even right side up devices. Solid rectangular patterns were also determined to have too much magnetic material to align and orient the device without recesses. Once recesses were added to the experiments, the pattern with thirty 5x10m rectangles proved to assemble the most devices with an assembly ratio of 90%. However problems occurred with fabricating perfect device shapes and thus mis-shapened devices were counted in the assembly ratio. Results from experimenting with square patterns with recesses show a 88% assembly ratio with a solid square pattern. This may be due to the symmetry of the square devices and therefore has higher probability of assembly than that of the rectangular devices.
by Diana I. Cheng.
M.Eng.
Mattsson, Jonas, i Dennis Brinkeback. "Quick Base Assembly : Konceptstudie". Thesis, Jönköping University, JTH, Industriell produktutveckling, produktion och design, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53915.
Pełny tekst źródłaBo, Yingjian. "Methods in organosilane assembly". Diss., Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/213502.
Pełny tekst źródłaPh.D.
Dialkylsilanediols are a novel class of non-hydrolyzable analogues of the tetrahedral intermediate of amide hydrolysis, shown to be good inhibitors of HIV-1 protease, angiotensin converting enzyme (ACE), and thermolysin. An impediment to utilization of these silanediol structures, however, has been the methods for their assembly. This research describes the reductive lithiation of hydridosilanes and alkoxysilanes, and the use of the resulting silyl anions to develop efficient methods to synthesize silanediol precursors. In the first part of research, lithiation of hydridosilanes was studied. As part of this study, a simple 1H NMR method was developed for monitoring and analyzing the progress of lithiation. In addition, this method was converted to a titration for silyllithium reagents using BHT as an internal standard. Silanediols 107 and 177 are analogues of a potent chymase inhibitor, NK-3201 (82). In the second part, diphenylsilanes 108 and 170, precursors to silanediols 107 and 177, were synthesized using addition of silyllithium to sulfinimine 113 as a key step. In the third part, lithiation of alkoxysilanes was studied. (Si,O)-Dianions, generated from lithiation of silane alcohol 175 or 2,2-diphenyl-1-oxa-2-silacyclopentane (225), were reacted with a wide variety of electrophiles to give potentially useful silicon-containing building blocks. Addition of the (Si,O)-dianion 284 to sulfinimines gave silanediol inhibitor precursors with full control of stereochemistry. In the last part, a new method featuring 1,1-diphenyl-2-azaallyllithium chemistry were utilized to synthesize a series of protected α-amino silanes 323, 329 - 331.
Temple University--Theses
Maeda, Chihiro. "Chemistry of Porphyrin Assembly". 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120686.
Pełny tekst źródłaVallance, Robert Ryan. "Precision connector assembly automation". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/38433.
Pełny tekst źródłaIncludes bibliographical references (p. 209-214).
Telecommunication systems, network servers, mainframes, and high-performance computers contain several printed circuit boards (PCBs) that are mounted in card-cage assemblies. Level-3 connectors, often called board-to-board connectors, transmit signals between the primary backplane PCB and the daughter card PCBs. These connectors are customized for each PCB by configuring modules along the length of the connector. Hence, the connector's assembly system must flexibly accommodate the connector configurations. Prior to this research, the assembly of daughter card connectors was a manual process. This thesis presents the conceptual design of an assembly cell, and thoroughly presents the selected concept, a flexible assembly system. In the flexible assembly system, the connector is fixtured on a pallet and transferred to assembly stations on a conveyor. The pallet must be precisely located at each station, to minimize the relative errors between the new component and the connector on the pallet. Kinematic couplings deterministically locate one rigid body with respect to another. Therefore, a pallet system was developed that uses split-groove kinematic couplings between the pallets and machines. Experiments demonstrated that the split-groove kinematic pallet was approximately O1X more repeatable than conventional pallet location methods. The design is evident in the fabrication and operation of the first automated machines for the connector assembly system. In automated machinery, kinematically coupled bodies are often subjected to ranges of disturbance forces. This thesis presents new methods for analyzing the static equilibrium, errors due to contact deformation, and contact stresses that result from disturbance forces. In addition, the manufacturing errors within individual pallets and machines combine to cause system-wide, variability in pallet location. Two methods are presented for estimating the system-wide variability in the position and orientation of the pallets.
by Robert Ryan Vallance.
Ph.D.
Ye, Weihua. "Women in the Assembly : representations of female Assembly Members in the Welsh press". Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/71787/.
Pełny tekst źródłaZhang, Yuan. "MST Based Ab Initio Assembler of Expressed Sequence Tags". Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1273245641.
Pełny tekst źródłaShanmugam, Sivamoorthy. "Automatic Sub-assembly detection, disassembly sequencing and disassembly direction prediction for an assembly model". Cincinnati, Ohio : University of Cincinnati, 2005. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1109252927.
Pełny tekst źródłaProbst, Martin. "Design of an advanced micro-assembly system for the assembly of bio-micro-robots /". Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18137.
Pełny tekst źródłaRasala, Beth A. "Defining the early steps in nuclear pore assembly chromatin-associated ELYS initiates pore assembly /". Diss., View abstract only; access to full text of dissertation for UC IP will be available after 1/1/2011, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3296834.
Pełny tekst źródłaTitle from first page of PDF file (viewed June 3, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
Bihi, Thabo George. "Assembly-setup verification and quality control using machine vision within a reconfigurable assembly system". Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2014. http://hdl.handle.net/11462/188.
Pełny tekst źródłaThe project is aimed at exploring the application of Machine Vision in a Reconfigurable Manufacturing System (RMS) Environment. The Machine Vision System interfaces with the RMS to verify the reconfiguration and positioning of devices within the assembly system, and inspects the product for defects that infringe on the quality of that product. The vision system interfaces to the Multi-agent System (MAS), which is in charge of scheduling and allocating resources of the RMS, in order to communicate and exchange data regarding the quality of the product. The vision system is comprised of a Compact Vision System (CVS) device with fire-wire cameras to aid in the image acquisition, inspection and verification process. Various hardware and software manufacturers offer a platform to implement this with a multiple array of vision equipment and software packages. The most appropriate devices and software platform were identified for the implementation of the project. An investigation into illumination was also undertaken in order to determine whether external lighting sources would be required at the point of inspection. Integration into the assembly system involved the establishment communication between the vision system and assembly system controller.
Bhoja, Sudeer. "Optimization of the Assignment of Printed Circuit Cards to Assembly Lines in Electronics Assembly". Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/37006.
Pełny tekst źródła
The focus of this research is to develop an algorithmic strategy for addressing this problem in electronics assembly. This problem involves considering several interrelated decision problems such as assigning printed circuit cards to assembly lines, grouping circuit cards into families to reduce the number of setups, and assigning component types to machines to balance workload. The line assignment models are formulated as large scale mixed integer programming problems and are solved using a branch-and-bound algorithm, supplemented by techniques for improving the solution time. The models and solution approaches are demonstrated using industry representative data sets and can serve as useful decision support tools for process planning engineers.
Master of Science