Thesis (Ph. D.)--University of Illinois, 1922. / Vita. Published also without thesis note. Bibliography: p. 225-229.

Thesis (M.S.)--Rochester Institute of Technology, 1994. / Typescript. Includes bibliographical references (leaves 77-80).

Thesis (Ph. D.)--Columbia University, 1932. / Vita. Bibliography: p. 365-370.

Thesis (M.A.)--University of Nevada, Reno, 2008. / "December 2008." Includes bibliographical references (leaves 135-138). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2009]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.

Thesis (Ph. D.)--University of Minnesota, 2000. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 238-250).

No description available.

SkiClicker är en produkt som används inom skiduthyrningar, skidverkstäder och skidbutiker. Verktyget används istället för skidpjäxan för att ställa in skidbindningens storlek. Genom att använda denna produkt kan uthyrningsprocessen bli mer tidseffektiv med anledning av att kunden inte behöver ta av sig en framprovad pjäxa. I och med att skiduthyrningar är en stressig miljö där kunderna är klädda för att vistas utomhus, bidrar SkiClicker till att förbättra denna upplevelse betydligt.  Dock fanns det ingen lösning för att hänga upp verktyget någonstans eller bära med sig det, vilket gör att verktyget måste ligga på bordet.  No More Boots ville därför ta fram ett koncept på ett hölster, för att se hur ett sådant skulle kunna se ut och fungera.   I denna rapport ingår hur produktvecklingsprocessen gått till. Produktutvecklingsprocessen delades i fem olika faser; förstudie, produktspecificering, konceptgenerering, val och detaljkonstruktion. Dessa olika faser ledde fram till resultatet i detta projekt. Resultatet av produktutvecklingsprocessen genererade ett koncept som uppnådde alla kraven och en stor del av önskemålen som sattes upp. Konceptet som togs fram var ett relativt öppet hölster som höll SkiClicker på plats. Hölstret kunde fästas på kroppen med en bälteskrok som även kunde fästas rakt i byxan. På bakkappan av hölstret kunde en penn- och skruvmejselhållare fästas. Till detta kunde även en grund för ett kommande materialval tas fram. Detta kunde till sist resultera i en slutprototyp som fungerade som den slutgiltiga produkten skulle göra och möjliggjorde att No More Boots kunde testa produkten. / SkiClicker is a product used in ski rentals, ski workshops and ski shops. SkiClicker is used instead of a ski boot to set in ski bindings size. By using this product the rental process can become much more time efficient due to that an extra take off and putting on of the ski boot is removed. Since ski rentals are a stressful environment where you wear a lot of clothes indoors, SkiClicker contributes to that the ski rental experience being a lot better. However, there was no solution for hanging the tool anywhere or carrying it with you, which meant that the tool had to lie on the table. No More Boots therefore wanted to develop a concept on a holster, to see how a holster could look like and how it would work. This report includes how the product development process went. The product development process was divided into 5 phases; feasibility study, product specification, concept generation, selection and detailed design. These different phases led to the result in this project. The result of the product development process generated a concept that met all the requirements and a large part of the wishes that were set up. The concept that was developed was an open holster that held the SkiClicker in a good way. This could be attached to the body with a belt clip that also could be attached directly to the pants. A pen and screwdriver hold was applied to the back cover of the holster. In addition, a basis for a future choice of material was also developed. This finally result in a final prototype that worked as the final product would do and made it possible for No More Boots to test the product. / <p>Betyg 2021-07-16</p>

CICYT (TIC2000-0664-C02-02 y TIC2003-07158-C04-01); Generalitat Valenciana, OCYT (CTIDIB-2002-151)

This thesis details the development of Finite Element Analysis (FEA) techniques to simulate assembly and functional performance of football boots within a virtual environment. With a highly competitive market and seasonal changes in boot design common, the current design process can require numerous iterations, each adding time and cost to the development cycle. Using a reliable model allows evaluation of novel design concepts without the necessity to manufacture physical prototypes, and thus has potential financial benefits as well as reducing development time. A modelling approach was developed to construct a three dimensional boot model using FEA techniques, simulating the assembly of representative boot constituent parts based on manufacturing patterns, geometries and materials. Comparison between the modelled and physical boots demonstrated good agreement. Assessment of physical boot manufacture enabled the validation of the simulated assembly techniques, with digital image correlation hardware and software used to provide experimental measurements of the surface deformation. Good agreement was reported, demonstrating the predictive capabilities of FEA. Extensive review of literature provided applicable loading conditions of the boot during game play, with bending and torsional stiffness identified as important parameters. Boundary conditions associated with the foot during these movements provided a platform from which mechanical tests were used and developed to quantify boot function. Modelling techniques were developed and applied to the assembled FEA boot model, simulating the loading conditions to verify the validity when compared with experimental measurements. Bending and torsional stiffness extracted from the model were compared with the physical equivalent, demonstrating good predictive capabilities. The model was able to represent bending stiffness of the physical equivalent within 5.6% of an accepted boot range up to 20°, with torsional stiffness represented within the accepted range between 10° inversion to 7.5° eversion, corresponding to a large proportion of match play. Two case studies proved the applicability of the FEA techniques to simulate assembly and determine mechanical functionality virtually through a combination of automated modelling methods and a bespoke framework, demonstrating how it could be implemented within the industrial design process.

Gummistövlar är en väsentlig del av många människors liv och utgör idag en viktig del av företaget Polarn O. Pyrets produktsortiment. Gummistövlar tillverkas av flera olika material såsom naturgummi (NR), styren-butadien-gummi (SBR), termoplastiska elastomerer (TPE) samt termoplaster. Syftet med rapporten är att, genom en materialjämförelse, reda ut hur en gummistövels miljöpåverkan ser ut. Genom en litteraturstudie har en jämförelse av råvaruutvinning och tillverkningsprocess utförts samt en översikt kring hur de olika materialen omhändertages vid livets slut. En gummistövel med en lång livslängd har i regel en lägre miljöpåverkan än en stövel med en kort livslängd. I och med en avsaknad av livscykelanalyser (LCA) för specifikt gummistövlar har detta emellertid försvårat och påverkat utformningen av arbetet. Sammanfattningsvis visade studien att råvaruutvinning av både NR samt syntetiskt gummi såsom SBR, TPE och termoplaster är samtliga material som har en negativ påverkan på den biologiska mångfalden i flera anseenden. Vad det gäller tillverkning av TPE och termoplaster har dessa material en lägre energiförbrukning och färre resurssteg vilket i sin tur genererar en lägre miljöpåverkan. Det är dessutom möjligt att återvinna dessa typer av material till skillnad från vulkat gummi såsom NR och SBR. Återvinningsmöjligheten är emellertid begränsad i och med en bristfällig infrastruktur för återvinning inom kläd- samt skoindustrin i allmänhet. / Rubber boots are an essential part of many people’s lives and today form an important part of the company Polarn O. Pyret’s product range. Rubber boots are made of several different materials such as natural rubber (NR), styrene-butadiene rubber (SBR), thermoplastic elastomers (TPE) and thermoplastics. The purpose of the report is to, through a material comparison, find out what the environmental impact of a rubber boot looks like. Through a literature study, a comparison of raw material extraction and a manufacturing process was made as well as an overview of how the various materials are handled at the end of life. A rubber boot with a long service life usually has a lower environmental impact than a boot with a short service life. However, due to the lack of life cycle analysis(LCA) for specific rubber boots, this has made it difficult and affected the design of the work. In summary, the study showed that raw material extraction of both NR and synthetic rubber such as SBR, TPE and thermoplastics are all materials that have a negative impact on biodiversity in several respects. As regards the production of TPE and thermoplastics, these materials have a lower energy consumption and fewer resource steps, which in turn generate a lower environmental impact. It is also possible to recycle these types of materials unlike vulcanized rubber such as NRand SBR. However, the possibility of recycling is limited due to a poor infrastructure for recycling in the clothing and shoe industry in general.