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Tesis sobre el tema "Mechanical cleaning"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Ng, Dedy. "Nanoparticles removal in post-CMP (Chemical-Mechanical Polishing) cleaning." Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/4159.

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Research was performed to study the particle adhesion on the wafer surface after the chemical-mechanical polishing (CMP) process. The embedded particles can be abrasive particles from the slurry, debris from pad material, and particles of film being polished. Different methods of particle removal mechanism were investigated in order to find out the most effective technique. In post-CMP cleaning, surfactant was added in the solution. Results were compared with cleaning without surfactant and showed that cleaning was more effective with the combined interaction of the mechanical effort from the

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2

Palabiyik, Ibrahim. "Investigation of fluid mechanical removal in the cleaning process." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4593/.

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The cleaning of pipework from fluids of high viscosity is a significant problem in many food and personal care industries which can cause considerable economic and environmental impact. Three stages are identified in the cleaning of straight pipes; (i) a short core removal stage of product recovery, before water breaks through the filled pipe, (ii) the 1st cleaning stage (film removal stage) when there is a continuous wavy annular film on the wall, and (iii) the 2nd cleaning stage (patch removal stage) in which the material is present as patches on the wall. The product recovery stage is found

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3

Rajendran, Nikith. "Surface mounted PCB cleaning process improvement and Its impact on manufacturing system performance." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/69491.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 87-88).<br>In the surface mount technology (SMT) assembly line, the printed circuit boards (PCB) are washed to remove the solder flux that was used while soldering to prevent oxidation. However the current cleaning method is highly ineffective in removing these solder flux residues. The solder flux residues cause many problems like electro-migration, improper mold underfill and increase the chances of failure. This p

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4

Kaushik, Adithya. "Development of Cleaning Robot for Trench Drains." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1573569385569481.

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5

Ingmire, Jennifer Joan. "Cleaning up the future with an autonomous space processor for orbital debris." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278519.

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In 1957, the space race began with the launch of Sputnik. The Soviet Union and the United States fought to be the first to place an object in earth orbit, to maintain it in orbit the longest, and eventually to land humans on the moon. During this time of competition, nothing was done to remove the spent objects or man-made debris from orbit. In recent years, man has become interested in the environment and the effects of his actions on it. This environmental consciousness has begun to extend to NASA and the space program. NASA has realized that the amount of orbited space debris around the ear

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6

Mukherjee, Ishan. "Cleaning process development and optimization in the surface mount assembly line of power modules." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/69490.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 83-84).<br>The cleaning process in the surface mount assembly line of power modules had been found to insufficiently remove solder flux residue from printed circuit board (PCB) assemblies after the process of reflow soldering. This thesis details the development of an optimized cleaning process that effectively removes solder flux residue from PCB assemblies. The first stage of this study involves the experimental va

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7

Jung, Yong Chae. "Natural and Biomimetic Artificial Surfaces for Superhydrophobicity, Self-Cleaning, Low Adhesion, and Drag Reduction." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1258574648.

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8

Lütkenhaus, Davidson. "Engineering understanding of cleaning : effect of chemistry and mechanical forces on soil removal." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7929/.

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The cleaning of food-based soils is highly relevant in domestic and industrial environments due to the costs associated with these operations as well as the significant consumption of time, water, and energy. Understanding the relationship between chemical and mechanical forces required to clean a surface is a critical step towards optimizing these processes. A complex twophase polymerized grease was developed and characterized with respect to its morphology, component distribution, and chemical composition. A thorough evaluation and physicochemical characterization of the cleaning process of

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9

Metlitz, Matthew S. "Design for an invertible water bottle to facilitate cleaning and promote sustainable water bottle usage." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92200.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 57-58).<br>The goal of this thesis is to explore the design of a reusable water bottle that can be inverted to expose the inside. Being able to directly touch the entire inside of the product could facilitate cleaning and consequently promote sustainable water bottle usage. Existing cleaning solutions and various water bottles were evaluated for benchmarking, and a water bottle usage survey revealed that most res

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10

Morgan, Harith. "Design of a mechanism to increase lateral force resistance of an autonomous ship hull cleaning robot." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127897.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (page 27).<br>Marine biofoul accrues on ship hulls and increases the resistance of a ship during voyage. This is a widespread issue within the shipping an industry -- which supports the vast majority of global trade. To address this problem, we are developing Bio-Inspired HullCrawler -- an autonomous robot capable of cleaning ship hulls while a ship is underway. The novelty of our design centers on the bio-insp

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11

Perejda, Michal. "Hydraulické shrabovací česle." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230545.

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This diploma thesis Hydraulic rake screen deals with the design of the hydraulic screen cleaning device with a stroke of 1800 mm, which will be placed in 1000 mm wide flow chanell of the wastewater treatment facility. This paper contains structural optimalization of the structure due to operating conditions and loads, mechanical strength calculations and drawings of the device and its details.

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12

Cavdarovski, Martin, and Christopher Borg. "Cleaning machine : In cooperation with HRI Teknik and Robomatic." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-34090.

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The following project is a collaboration with HRI Teknik and Robomatic AB, that found a possible market for improving cleanliness in grocery stores by improving the hygiene of costumer baskets. Bacteria and left over items in the basket builds up a health risk for the costumers, if not properly cleaned regularly. The dirt and bacteria from the basket is broth home thru the groceries coming in contact during shopping. The need has been strengthened by surveys for the two store managers and the customers of the grocery store. To reduce the spreads of diseases, the baskets should be cleaned bette

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13

Çobi, Alban C. (Alban Chris). "A suction-based reversible attachment and locomotion mechanism for an underway vessel hull cleaning and inspection robot." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127154.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 95-98).<br>The international merchant vessel fleet is in charge of carrying over 90% of the items that are traded globally. Any vessel down time brings significant additional costs to the industry. A common source of vessel downtime is the colonization of the vessel hull by marine life, known as permanent marine bio growth. Marine bio growth brings significant risks and costs associated with it, the most

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14

Osman, Muhammad Verfasser], Roger A. [Akademischer Betreuer] Sauer, and Arnold [Akademischer Betreuer] [Reusken. "Continuum mechanical modeling aspects of self-cleaning surface mechanisms / Muhammad Osman ; Roger A. Sauer, Arnold Reusken." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1127143786/34.

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15

Osman, Muhammad [Verfasser], Roger A. Akademischer Betreuer] Sauer, and Arnold [Akademischer Betreuer] [Reusken. "Continuum mechanical modeling aspects of self-cleaning surface mechanisms / Muhammad Osman ; Roger A. Sauer, Arnold Reusken." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1127143786/34.

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16

Miller, David Leland. "A Comparison Between Self-Cleaning Properties via Rolling Droplets and Condensation on Superhyrophobic Surfaces." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6594.

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Superhydrophobic (SH) surfaces are super water repellent surfaces on which a droplet of water will bead up like a marble and roll off the surface with minimal tilting of the surface. This is caused by the combination of a hydrophobic coating and a rough surface structure. To achieve thermodynamic stability, surface tension of the water pulls the droplet into this shape to minimize the contact area between the droplet and the surface. This creates a high contact angle (CA) between the droplet and the surface and a low sliding angle (SA) of which the droplet begins to roll off the surface. SH su

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17

Jongschaap, Tiemen, and Rick Smit. "Camera cleaning study for Automatic Milking System utilizing steam at DeLaval International AB." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-27028.

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The VMS is a robot milking system of DeLaval International AB. It has been observed that a layer of residue remains on the camera lens after cleaning. The camera is used to locate the teat and apply the milking cups. Even though after automatically cleaning with a sponge, it is very difficult to remove this layer. This study has been conducted to find out if a new cleaning station utilizing steam can have better cleaning results concerning the mentioned problem. A test setup was built to perform several tests. The boiler is capable to supply steady steam with the same pressure and temperature

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18

Chen, Wenhao. "Experimental evaluation of indoor air cleaning technologies and modeling of UV-PCO (photocatalytic oxidation) air cleaners under multiple VOCs conditions." Related electronic resource:, 2007. http://proquest.umi.com/pqdweb?did=1342744161&sid=3&Fmt=2&clientId=3739&RQT=309&VName=PQD.

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19

Nechlani, Rajkumar aka Rahul Shankarlal. "Improvement of cleaning effectiveness through Statistical Process Control in active pharmaceutical ingredient (API) manufacturing." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117971.

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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, 2018.<br>Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, in conjunction with the Leaders for Global Operations Program at MIT, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 92-95).<br>This thesis presents work that was done to improve the effectiveness of cleaning processes at an active pharmaceutical ingredient (API) manufacturing site that was in the ph

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20

Flores, H., H. Flores, G. Bernuy, and C. Huerta. "Mechanical properties and self-cleaning mortar capacity C/A 1: 5 of Portland cement modified with titanium dioxide (TiO2)." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/651764.

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The deterioration of the surfaces of the constructions made with mortar C/A 1: 5 of Portland cement, are produced by being exposed to the emission of toxic gases emanating from the growing automobile fleet, this problem causes alternatives to be sought in order to counteract its effect on buildings and the environment. A new method to deal this problem is the incorporation of the titanium dioxide photocatalyst (TiO2) into the Portland cement mortar, which can develop self-cleaning and air purification properties to be in contact with sunlight. This work seeks to introduce this organic componen

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21

Růčka, Martin. "Hydraulické shrabovací česle." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231090.

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This thesis deals with the structural design of hydraulic raking screens placed before a sewage treatment plant. The first part describes various possibilities of water treatment from individual particles. The second part deals with basic parameters of screens and calculations of propelling power for previously chosen structure. Furthermore, a strength check of structure under the most unfavourable load is performed. Drawings of the whole assembly of hydraulic raking screens, plus a few selected components are attached to the thesis.

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22

Sjöqvist, Carl-Henrik, and Oscar Söderhielm. "Förstudie för automatisering av gjutgodsrensning." Thesis, Linköping University, Assembly technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-51465.

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<p>This thesis work has been performed at the Division of Assembly Technology at Linköping University for a period of ten weeks. The work is part of the project ProFlexA, which is a research project in collaboration between Linköping University, Lund University, and industrial partners such as Combi Wear Parts and Smålands Stålgjuteri AB.</p><p>The casting process creates random incurred burrs and defects, which must be removed during a cleaning process to make sure that the cast can be sold. Automation has long been sought for the cleaning of castings due to, among other things, poor working

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23

Gericke, Adine. "A comparison of the effect of the mechanical wash action on textile fabric deterioration and soil removal efficiency." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52065.

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Thesis (MSc )--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: Washing and cleansing in an aqueous washing solution is a complex process involving the interaction of numerous physical and chemical processes. Investigations indicate that various factors present during repeated laundering might have an adverse effect on textile fabrics. Little is known, however, about the effect of the different mechanical wash actions on the deterioration of textiles. The automatic washing machines commonly used in South African households are often broadly classified as top loaders and front load

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24

Frýba, Lukáš. "Analýza alternativ odstraňování PCDD/F při spalování odpadů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229471.

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The thesis is focused on analyzing the current status of the technology used for cleaning flue gas from persistent organic pollutants, especially PCDD/F. For the three most commonly used methods of solution operational and energy efficiency comparison was made, where achievable energy export and the impact of the change in working conditions on the efficiency indicators of energy production and use of the energy was evaluated. In conditions we considered an alternative machine-technological solutions used for the final disposal of persistent organic pollutants resulting from the waste combusti

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25

Bartone, Stephen M. "Amaranth Grain Seed Cleaner Development and Testing." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1481038808801139.

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26

Bixler, Greg. "Bioinspired Surface for Low Drag, Self-Cleaning, and Antifouling: Shark Skin, Butterfly and Rice Leaf Effects." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1385536745.

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27

Jensen, Lauren Elizabeth. "Mechanical preparation of oval-shaped root canals in mandibular premolars with the TRUShape 3D Conforming File: a micro-computed tomography study." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5523.

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The TRUShape 3D Conforming File (TRUShape), a novel, S-shaped nickel-titanium (NiTi) rotary file, was developed to facilitate cleaning and shaping of irregular-shaped root canals. The purpose of this study was to evaluate the shaping ability of TRUShape compared to Vortex Blue (VB) when used in non-round, oval-shaped root canals by micro-computed tomography (MCT). Thirty single-rooted human mandibular premolar teeth with radiographically similar root canal size and curvature were randomly allocated to two groups (N=15), and mechanically prepared with TRUShape or VB. Each tooth was submitted to

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28

Earney, Megan A. "Investigating the Effect of Mechanical Beach Cleaning on Nesting, Hatching and Emergence Success of Loggerhead (Caretta caretta) and Green (Chelonia mydas) Sea Turtles in Broward County, Florida." NSUWorks, 2017. http://nsuworks.nova.edu/occ_stuetd/454.

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Sea turtles face many threats to their populations globally. Loggerhead sea turtles (Caretta caretta) and green sea turtles (Chelonia mydas) are listed by the International Union for the Conservation of Nature Red List as Endangered. In Florida, loggerhead and green sea turtles nest along the coastline during April-September. Mechanical beach cleaning is an aesthetic service performed daily on some beaches in Florida to clean the wrack line and/or the entire beach of debris. Alterations made to beaches by methods such as mechanical beach cleaning have the potential to impact sea turtle nesting

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29

Mierzejewska, Sylwia. "Analysis of the effectiveness of the impact of mechanical factors in the energetic and qualitative aspect of cleaning of pipelines in food prosessing industry : PhD thesis summary." Rozprawa doktorska, [s.n.], 2011. http://dlibra.tu.koszalin.pl/Content/1090.

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30

Farias, Carlos Eduardo. "Estudo da interação do ácido esteárico com plasma de radiofrequência indutivamente acoplado." Universidade Tecnológica Federal do Paraná, 2013. http://repositorio.utfpr.edu.br/jspui/handle/1/794.

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CNPq; CAPES<br>A limpeza a plasma é uma tecnologia promissora para a preparação de superfícies que receberão tratamentos, pois possui a habilidade de reduzir a quantidade de resíduos orgânicos em uma superfície através da combinação de agentes físicos e químicos. Apesar do interesse tecnológico, seu uso é ainda limitado, pois seus mecanismos ainda não são bem compreendidos. Tal dificuldade se deve à grande variedade química de contaminantes orgânicos, e a complexidade destes, que via de regra são compostos, e não substâncias simples. Esse trabalho busca investigar o efeito das variáveis de pro

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31

Lužný, Jan. "Hydraulický čistící stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416867.

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This diploma thesis deals with the design of hydraulic trash rack cleaning machine for waste water treatment plant. The first part of the thesis describes methods of removing coarse impurities from intake water to technological equipment. Furthermore, a specific design including calculation and choice of the drive is made. Part of the work is also solving the course of force effects and strength analysis of the most stressed parts. The work also deals with the comparison of design solution of hydraulic and mechanical drive of the machine. The attachment contains a drawing of the cleaning machi

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32

Palnati, Mahendra. "Design, Fabrication and Analysis of a Paver Machine Push Bar Mechanism." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6007.

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Now-a-days, the major challenge that’s being faced by the concrete industry is the cleaning of concrete handling equipment. Concrete consists of aggregates, which harden with time, and the transportation of concrete mixture within the plant is a significant problem. This will not only increase the overall maintenance cost, but will lead to loss of raw materials, affect the rate of production, and reduce the lifetime of concrete handling equipment. The present study focuses on the design and implementation of an adaptive cleaning mechanism in the concrete industry and its importance in achievin

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33

Kent, Anthony Clifford. "The mechanics of abrasion relating to household cleaning." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6954/.

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Abrasion of polymer surface films or coatings in an everyday occurrence, whether in the home, work or industry. As a result a wide variety of polymer films can be found on surfaces. Despite the numerous applications, three body thin film abrasion appears a niche area of study and as a result under-researched. This investigation focuses on identifying, characterising and quantifying the abrasive wear of a baked dehydrated castor oil deposit formed on stainless steel. The primary aim of this project is to understand how the fundamental properties of the liquid abrasive cleaning system contribute

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34

Sommer, Matěj. "Alternativní řešení a pevnostní kontrola mechanických česlí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417118.

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This master’s thesis deals with a new design of bar screens. The goal was to come up with an alternative design to already existing device by INKOS a. s. In the first part, there is a summary of various machines working in similiar conditions. The insights gained by this research influenced the design of the new device. It utilizes well proven solutions from previous projects, but some of these were reworked and a few new functions were added. Second part of the thesis describes the analytical solutions, which were used to determine the forces in the assembly during the operation of the device

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35

Hackmann, Alexander. "Contamination and biomechanics of cleaning structures in insects." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709213.

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Терефенко, Р. М. "Підвищення ефективності використання механічних очисних пристроїв в газопроводах". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2009. http://elar.nung.edu.ua/handle/123456789/4341.

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Дисертаційна робота присвячена підвищенню ефективності використання механічних пристроїв у газопроводах і забезпечення оперативного ліквідування аварій у випадку їх застрягання. Запропоновано імпульсно-хвильовий метод пошуку очисного пристрою, що застряг у газопроводі, створено математичну модель газодинамічних процесів і проведено аналітичні та експериментальні дослідження, на основі яких встановлено раціональні параметри процесу та дано оцінку точності методу.<br>Дисертационная работа посвящена повышению эффективности использования механических очистных устройств в газопроводах и обеспечению

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37

Behrouzi, Parviz. "Performance of multicell, axial-entry cyclones for industrial gas cleaning." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47357.

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38

Abusomwan, Uyiosa Anthony. "Mechanics of Adhesion and Contact Self-Cleaning of Bio-Inspired Microfiber Adhesives." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/449.

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The remarkable attachment system of geckos has inspired the development of dry microfiber adhesives through the last two decades. Some of the notable characteristics of gecko-inspired fibrillar adhesives include: strong, directional, and controllable adhesion to smooth and rough surfaces in air, vacuum, and under water; ability to maintain strong adhesion during repeated use; anti-fouling and self-cleaning after contamination. Given these outstanding qualities, fibrillar adhesives promise an extensive range of use in industrial, robotic, manufacturing, medical, and consumer products. Significa

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39

Popa, Mihaela. "Tooth cleaning : abrasive particles but no abrasion." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI034.

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En 1997 Stuard L. Fischman a dit « Certainement on mange bien, on parle bien, on a l'air bien et on « sent frais » - mais on a aussi la plaque dentaire, la gingivite et les caries dentaires. Le lecteur peut déterminer les progrès réalisés en réfléchissant à son état de santé bucco-dentaire personnel! ». Vingt ans plus tard cette affirmation reste valide. L'acte le plus commun d'hygiène buccale est de se nettoyer les dents par brosse à dents, eau et dentifrice. Le rôle principal de la brosse à dents et du dentifrice est d'éliminer le biofilm dentaire responsable des maladies buccales. Il est la

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40

Andersson, Filip, and Niklas Martinsson. "Filter cleaning device : for truck cab climate systems." Thesis, Linköpings universitet, Maskinkonstruktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-153638.

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Scania has identified a problem among certain costumers in very dusty environments. The air filters for their truck’s climate system need extensive maintenance, replacement or manual cleaning, because of dust frequently loading up the filters. In this thesis the problem has been analyzed in order to find a solution. The process was initiated by the usage of the black box method, where needed transformations were found, resulting in three needed technical systems. Thereafter, brainstorming was used to find concepts for each technical system. Concepts were compared and ranked against each other.

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41

Bernuy, Chavez Giancarlo Orlando, and Cortez Howard Hans Flores. "Evaluación de las propiedades mecánicas y capacidad autolimpiable del mortero c/a 1:5 de cemento portland tipo I modificado con dióxido de titanio (TIO2), en la ciudad de Lima." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/653673.

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El deterioro de las construcciones realizadas a base de cemento, producido en gran medida, por la exposición de estas a la emisión de gases tóxicos emanados por el creciente parque automotor hace que se busquen alternativas a fin de contrarrestar su efecto sobre los elementos más expuestos. Un nuevo método para afrontar este problema es la incorporación del fotocatalizador dióxido de titanio TiO2 capaz de desarrollar propiedades controladas por la luz solar como son la purificación del aire y la autolimpieza. Este trabajo busca introducir este componente orgánico al mortero de cemento usado p

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42

Westin, Elin M. "Welds in the lean duplex stainless steel LDX 2101 : effect of microstructure and weld oxide on corrosion properties." Licentiate thesis, KTH, Materials Science and Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9299.

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<p>Duplex stainless steels are a very attractive alternative to austenitic grades due to their higher strength and good corrosion performance. The austenitic grades can often be welded autogenously, while the duplex grades normally require addition of filler metal. This is to counteract segregation of important alloying elements and to give sufficient austenite formation to prevent precipitation of chromium nitrides that could have a negative effect on impact toughness and pitting resistance. The corrosion performance of the recently-developed lean duplex stainless steel LDX 2101 is higher tha

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43

Westin, Elin M. "Welds in the lean duplex stainless steel LDX 2101 : effect of microstructure and weld oxides on corrosion properties." Licentiate thesis, Stockholm : Industriell teknik och management, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9299.

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44

Langmo, Jotham. "Verifiering av speciell tvättutrustning med avseende på renhetsgrad." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-104671.

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Inom medicin och kärnkraft ställs höga krav på olika komponenters renhetsgrad. Vid tillverkning av precisionskomponenter inom medicin och kärnkraftsteknik så används skärvätska för att kyla och smörja godset. Skärvätskan behöver tvättas bort innan komponenterna skickas till kunderna. För att kunna tvätta bort skärvätskan används en speciell tvättutrustning. Idag saknas en metod för att kunna påvisa att den speciella tvättutrustningen på ett tillförlitligt sätt uppnår gällande krav och standarder på renhet som ställs av branscherna, på komponenterna. Genom att verifiera tvättutrustningen mot en

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45

Westin, Elin M. "Microstructure and properties of welds in the lean duplex stainless steel LDX 2101." Doctoral thesis, KTH, Metallografi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-27387.

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Duplex stainless steels can be very attractive alternatives to austenitic grades due to their almost double strength at equal pitting corrosion resistance. When welding, the duplex alloys normally require addition of filler metal, while the commodity austenitic grades can often be welded autogenously. Over-alloyed consumables are used to counteract segregation of important alloying elements and to balance the two phases, ferrite and austenite, in the duplex weld metal. This work focuses on the weldability of the recently-developed lean duplex stainless steel LDX 2101® (EN 1.4162, UNS S32101).

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46

Chiocchetti, Simone. "High order numerical methods for a unified theory of fluid and solid mechanics." Doctoral thesis, Università degli studi di Trento, 2022. http://hdl.handle.net/11572/346999.

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This dissertation is a contribution to the development of a unified model of continuum mechanics, describing both fluids and elastic solids as a general continua, with a simple material parameter choice being the distinction between inviscid or viscous fluid, or elastic solids or visco-elasto-plastic media. Additional physical effects such as surface tension, rate-dependent material failure and fatigue can be, and have been, included in the same formalism. The model extends a hyperelastic formulation of solid mechanics in Eulerian coordinates to fluid flows by means of stiff algebrai

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47

Lopes, Patrícia Raquel Félix Vaz. "Cleaning System for LiDAR AV Sensor." Master's thesis, 2020. https://hdl.handle.net/10216/129947.

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Lopes, Patrícia Raquel Félix Vaz. "Cleaning System for LiDAR AV Sensor." Dissertação, 2020. https://hdl.handle.net/10216/129947.

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Chen, Po-Lin, and 陳柏林. "Study on Post-Chemical-Mechanical Polishing Cleaning in the Copper Damascene Process." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/21074247798000098870.

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碩士<br>國立臺北科技大學<br>材料及資源工程系碩士班<br>89<br>Under intensive investigation for Ultra-Large-Scale-Integration (ULSI), copper has emerged as an attractive, alternative choice for future interconnect applications owing to its low electrical resistivity and high electromigration resistance. The damascene process is regarded to be an essential and critical step for manufacturing copper interconnects, and the chemical-mechanical polishing (CMP) of copper and barrier layer metals is the key to enable this process. Unfortunately, copper CMP process leaves a large amount of contaminants on the surface, which

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50

Vinod, Palathinkara S. "Effect of fluid rheology of hole cleaning in highly-deviated wells." Thesis, 1995. http://hdl.handle.net/1911/16893.

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One of the technical challenges in deviated drilling is the transport of drill bit cuttings to the surface. The complexity arises due to the narrow settling clearance for the cuttings and the presence of a cuttings bed on the low side of the bore hole. Fluid rheology is the determining factor in the efficiency of this operation. Drilling fluid selection for possible field use is the focus of this dissertation. The problem has been treated with a two-pronged strategy: (i) macroscopic studies that involve numerical models for the prediction of effects of rheology on drilling fluid flow through d

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