Global ETD Search

1	An Investigation into the Effects of Chemical Protective Clothing on Team Process Performance Grugle, Nancy Lynn 12 May 2001 (has links) Chemical protective clothing is designed to protect the worker by providing a barrier between the individual and the contaminated environment. Unfortunately, the same equipment that is designed to help can often cause heat stress, reduced task efficiency, and reduced range-of-motion for the worker. Teams as well as individuals suffer from these effects resulting in difficulty communicating, increased task completion time, and reduced productivity. Studies investigating the effects of protective clothing generally focus on individuals; however, the military has produced research related to the effects of Mission Oriented Protective Posture (MOPP) on team performance outcomes in an attempt to understand how protective clothing might affect military teams and squads. Previous research has indicated a degradation of team performance as shown by increased task completion time; however, a comprehensive team performance measurement system studies not only the performance outcomes, but also the processes behind the outcomes. In order to provide a more complete understanding of the performance effects of protective clothing and equipment, this investigation focused on the effects of MOPP on the behavioral processes underlying team performance to include adaptability, communication, and coordination. It also attempted to validate previous studies on performance outcomes. Ten subjects formed five, two-member teams. Subjects were certified EMT's from local rescue squads and were required to perform CPR and spinal injury management (SIM). They performed each task twice-once in their duty uniform and once in MOPP level 4. Team performance was measured using the TARGETS methodology, and event-based team process performance measurement technique. A team performance index score (TPI) was calculated for each team for all four tasks and then used as the dependent measure for the analyses to compare team performance in a duty uniform versus performance in MOPP 4. Three hypotheses were tested in this study. They were as follows: team process performance will be degraded by MOPP, task completion time will increase as a result of wearing MOPP, and errors will increase as a result of wearing MOPP. Results of six primary analyses indicated that team process performance was not degraded and the number of errors did not increase when teams were wearing MOPP 4. Results did show, however, that task completion time was significantly longer when teams were wearing MOPP 4. The implications of these results are discussed in the thesis and design changes are put forth. / Master of Science chemical protective clothing MOPP team process performance
2	Ergo Mopp : Från koncept till produkt / Ergo Mop : From concept to product Kamf, Tobias January 2010 (has links) <p>This thesis describes the work process and the results for the development of a newkind of ergonomic cleaning mop, ranging from basic concept to a virtually productionready digital prototype. The project was made in cooperation with, Ömer Altun, whowas also the project supervisor, and whose plan it is to launch this new product onthe market in a foreseeable future. The mop is meant to be used by both professionalcleaning staff and ordinary home users. What makes this product unique is that it hasa movable center piece that simplifies the cleaning under low furniture.The work began with the establishment of a product requirements specification andlater a study of similar products and existing functional models was conducted. Afterthese surveys the work began with refining the existing concepts in order to makethem more complete. In consultation with Ömer, further refining of one of these newconcepts was conducted, but was split into seven smaller steps.After the initial refining process, effort shifted into the investigation and selection ofappropriate materials and manufacturing methods. At this stage, two experimentswere also conducted and subsequently used to support the final decisions concerningthe choice of materials and design.When the materials and methods were adopted, a detailed CAD model of the wholeproduct and related technical drawings was made and also a number of FEM-analyseson all critical details, to ensure that performance requirements were met, wasconducted. These CAD models are closer described in detail in the chapter“Detaljkonstruktion”.In the final sections of discussion and evaluation are suggestions for furtherimprovements. And also some evaluation of the work process and the problems andsolutions encountered during the project execution.</p> städning mopp CAD plastkonstruktion produktutveckling FEM-analys extrudering formsprutning
3	Ergo Mopp : Från koncept till produkt / Ergo Mop : From concept to product Kamf, Tobias January 2010 (has links) This thesis describes the work process and the results for the development of a newkind of ergonomic cleaning mop, ranging from basic concept to a virtually productionready digital prototype. The project was made in cooperation with, Ömer Altun, whowas also the project supervisor, and whose plan it is to launch this new product onthe market in a foreseeable future. The mop is meant to be used by both professionalcleaning staff and ordinary home users. What makes this product unique is that it hasa movable center piece that simplifies the cleaning under low furniture.The work began with the establishment of a product requirements specification andlater a study of similar products and existing functional models was conducted. Afterthese surveys the work began with refining the existing concepts in order to makethem more complete. In consultation with Ömer, further refining of one of these newconcepts was conducted, but was split into seven smaller steps.After the initial refining process, effort shifted into the investigation and selection ofappropriate materials and manufacturing methods. At this stage, two experimentswere also conducted and subsequently used to support the final decisions concerningthe choice of materials and design.When the materials and methods were adopted, a detailed CAD model of the wholeproduct and related technical drawings was made and also a number of FEM-analyseson all critical details, to ensure that performance requirements were met, wasconducted. These CAD models are closer described in detail in the chapter“Detaljkonstruktion”.In the final sections of discussion and evaluation are suggestions for furtherimprovements. And also some evaluation of the work process and the problems andsolutions encountered during the project execution. städning mopp CAD plastkonstruktion produktutveckling FEM-analys extrudering formsprutning
4	Development of Breathable, Self-Sealing Protective Garment January 2016 (has links) abstract: “Smart” materials are used for a broad range of application including electronics, bio-medical devices, and smart clothing. This work focuses on development of smart self-sealing and breathable protective gear for soldiers against Chemical Weapon Agents (CWA). Specifically, the response of chemo-mechanical swelling polymer modified meshes to contact with stimuli droplets was studied. Theoretical discussion of the mechanism of smart materials is followed by development and experimental analysis of different modified mesh designs. A multi-physics model is proposed based on experimental data and the prototype of the fabric is tested in aerosol impingement conditions to confirm the barrier formed by rapid-self-sealing feature of the design. / Dissertation/Thesis / Masters Thesis Mechanical Engineering 2016 Mechanical engineering Protective gear Self-Sealing Shape Change Effect (SCE) Smart materials Superabsorbent Polymers
5	I like it dirty Pontén, Stina January 2018 (has links) Using dirt and cleaning as a point of departure, I have examined how categorization and intentionality affects our perception of value. The work is partly performative in its nature where this performativity sets the limelight on the transition between categories: From dirt to craft, from irrational behaviour to art. In the artistic process, I have used coffee rings on table cloths, shoeprints on wallpapers and the act of mopping as a means of questioning. Through this, I also reveal and question hierarchies in society. The essay discusses and theoretically relates to the artistic work. / Med utgångspunkt i smuts har jag underökt hur kategorisering och intentionalitet påverkar vår uppfattning av värde. Arbetet är delvis performativt till sin natur, där denna performativitet sätter fokus på övergången från en kategori till en annan: Från smuts till konsthantverk, från irrationellt beteende till konst. I den konstnärliga processen har jag använt mig av kafferingar på dukar, skoavtryck på tapeter och moppande av golv som medel för ifrågasättande. PÅ detta vis blottlägger och ifrågasätter jag hierarkier i samhället. I uppsatsen diskuterar jag och relaterar teoretiskt till det konstnärliga arbetet. hierarchies dirt filth categorization intentionality performativity value art craft society art jewellery art jewelry corpus cleaning tidying domestic work mopping mop coffee stains coffee rings shoe prints hierarkier smuts kategorier intentionalitet performativitet värde konst konsthantverk samhälle smyckekonst korpus städning mopp kafferingar skoavtryck Arts Konst

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