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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

The Emotional Reactions Of Tactual Qualities On Handheld Product Experiences

Ozcan, Nergis 01 January 2008 (has links) (PDF)
This is an attempt to analyze the evaluation criteria of tactual qualities on handheld product experiences by users. The study was conducted with the users selected from different work groups and different ages for exploring the meanings which are attributed to these tactual qualities by them. The thesis is expected to shed a light in the design studies by designers. After identifying the products and the participants, the tactual experiences were analyzed throughout the study to find out the keywords which are used to describe the tactual qualities through the experience. The evaluation criteria and the relationships between these criteria are expected to use as guidance. The guidance of these keywords, the approaches of the users to the tactual qualities tried to be clarified in order to acquire data for the design processes. The results showed that the tactual qualities are qualities which are mentioned by the participants. This means that the participants are aware of the tactual qualities. On the other hand, it was seen that expressing the emotional effects of the tactual qualities with words is hard for users. However, expressing the emotional effects is hard for users / some relations between the tactual qualities and between other qualities are conducted.
42

Improvement of sampling system for Remote Explosive Scent Tracing

Uddqvist, Anette, Roberthson, Ida January 2010 (has links)
<p>Remote Explosives Scent Tracing (REST) is the concept of bringing the mine field to Mine Detection Dogs or Rats, instead of vice versa. This is done by collecting air or dust from minefields, and taking these samples to a laboratory environment, where they are subsequently analysed by the detection animals.</p><p>REST has previously proven to be very fast and cost effective, but one of the issues facing the method is that there is yet no reliable tool for sampling dust. In earlier sampling units, air has been collected in filters. However, the concentration of scents related to mines has been seen to be a million times higher in dust particles than in air sampled from above the ground. The aim of this project was to evaluate and improve a dust sampling prototype constructed in the beginning of 2010. The project was initiated in cooperation with the GICHD (Geneva International Centre for Humanitarian demining), and carried out in cooperation with APOPO (Anti-Personnel Landmines Detection Product Development).</p><p>During this project, information was gathered on the samplers that have previously been used for REST. A new prototype was made in Trondheim in cooperation with NTNU (Norwegian University of Science and Technology). With this new sampler prototype, tests were made in a laboratory environment at NTNU as well as at APOPO’s test mine field in Morogoro, Tanzania. Several obstacles were faced, such as difficulties to test and evaluate the sampler during the rainy season, insufficient air supply for the prototype, and issues with the laboratory equipment in Morogoro. Due to this, the number of tests performed and the number of repetitions of each test was not as high as would have been desired.</p><p>The results of the information gathering and the tests are presented in this report, and the knowledge and experience gained resulted in several suggestions for improvements for the sampler prototype. A suggestion for a grid design that would cover the entire mouth piece, with a built-in distance to the suction inlet, in order to avoid both clogging of the grid and that too much dust is sucked in if the mouth piece touches the ground and a fully adjustable sampling unit. Several other recommendations are given that would reduce cross contamination risks and improve ergonomics and other aspects of the sampler prototype.</p>
43

Instructions on a Windows Phone 8 Application : Design Strategies and Application Principles / Instruktioner på en Windows Phone 8 Applikation : Design Strategier och Applikations Principer

Lundgren Kuosmonen, Elias January 2014 (has links)
Making an application user-friendly is a key goal when it comes to the experience it intends to deliver. There are numerous factors that have to be taken into account when a design is developed. One of those is simplicity. The application has to be simple enough to ensure the expected user experience. This is often solved by applying instructions. To what extent does the application have to mediate instructions of functionality to the user? That question is the underlying purpose of this thesis. The thesis studies three common ways of presenting instructions to arrive at a concluding result: the use of a popup window, an added information button to the design or relying on the design to present itself. The gathered results show a need for instructions to ensure a user-friendly environment. A further analysis of the results concludes that presenting instructions using an information button is the most prominent option.
44

Bring Your Own Device and Nurse Executives Decision Making: A Qualitative Description

Martinez, Karen 12 December 2014 (has links)
Bring Your Own Device (BYOD) phenomenon is important in the healthcare environment because this growing trend is totally changing the workplace landscape in healthcare organizations, such as British Columbia (BC). The organizations need to be proactive and aware of this trend to decide the best way to approach this phenomenon. Currently, there is little current research that exists in Canada in context to provide a distinct understanding of the complexities and difficulties unique to this phenomenon within the nursing practice. In order to develop an understanding of BYOD in healthcare workplace, a perspective was needed of those experiencing the phenomenon of interest. The premise of this research was to explore the BYOD phenomenon from the nursing perspective. This study focused on the experiences, views, and perceptions of nurse executives/managers about how they make decisions regarding use of personal handheld devices in the workplace. A qualitative description was undertaken and the collection of data involved telephone interviews in which participants were asked to reflect on their views and/or experiences regarding BYOD in the workplace. During the literature research process, the researcher discovered that there were similar research studies previously done in the early 2000s that found early healthcare organizational concerns with the use of personal digital assistant devices (PDA) in the clinical setting. In this study, four major themes emerged that provided an insights as to how nurse NEx/M make decisions regarding BYOD. The four major themes included: 1) management perspective, 2) opportunities, 3) disadvantages, and 4) solutions. The results of this study will aid in bringing greater awareness of BYOD to other executives and managers in nursing and should also provide information to the leaders throughout the healthcare organizations and health IT department. / Graduate
45

Royal Canadian Navy Evaluation of Handheld Aerosol Extinguishers

Sheehan, Thomas David 16 April 2013 (has links)
Defence Research and Development Canada - Atlantic is currently under a project arrangement with Sweden and Holland to investigate new or emerging fire suppression technologies in naval applications. One possible outcome of this project arrangement could be the identification of a safe and effective Halon 1301 replacement suppression agent within the respective navies. The subject area Canada has agreed to investigate is aerosol fire extinguishing agent technologies. Although aerosols have been shown to be effective in suppressing demonstration fires, to date there has been little systematic scientific research into fire suppression using aerosol particulates. Therefore, there is a need for more in depth investigation of some of the commercial aerosol products available on the market to determine their fire suppression efficacy in naval applications, as well as any potential negative impacts that the aerosol may have on personnel, equipment and the environment. Aerosol suppression systems range from small handheld grenade extinguishers to large fitted and remotely activated aerosol dispersal units. The fire research and testing presented in this thesis looks specifically at the efficacy and safe use of two variants of the small handheld aerosol extinguishers, while also assessing aerosol agent suppression technologies overall. The Royal Canadian Navy (RCN) currently uses a two tiered response to fire, consisting of first response by a Rapid Response Team (RRT), followed by full response by an Attack Team (AT). A Rapid Attack Team (RAT) has been introduced as an intermediate response team. To enhance efficiency of the RRTs or RATs, handheld aerosol units, in this evaluation the Dry Sprinkler Powder Aerosol (DSPA) and StatX fire knock down aerosol extinguishers, could potentially be stored throughout the ship or transported by the teams to a fire scene and used to control, suppress or even extinguish a fire prior to the AT arriving on the scene, particularly in the case of smaller enclosure fires. To fully evaluate their potential for use in this capacity, it is important to carefully study the suppression efficacy of these units under conditions similar to those in which they would be deployed, as well as to better understand their impact on a fire environment in terms of important parameters such as compartment temperature reduction, visibility, oxygen concentration, aerosol particulate dwell time, and toxicity. In terms of operational issues related to deployment of these pyrotechnic tools onboard RCN vessels, it is critical to assess the requirements for extinguisher safe storage and to gain an understanding of the incendiary potential of the units, as well as post suppression overhaul, smoke/agent clearing and compartment gas free certification. The thesis includes a description of the experimental design, measurement techniques, and key results and conclusions for each of the 26 full-scale simulated marine enclosure live fire tests that were conducted. In general, handheld aerosol extinguishers have proven to be effective for fire control and even suppression under certain circumstances. They can improve the fire safety of RCN vessels when used correctly. Experimental data measured that relate to the consequences of accidental discharge and incendiary potential can also be used to ensure naval applications are safe and effective.
46

Secure Software and Communication on Handheld Devices / Säker programvara och kommunikation med handdatorer

Hussain, Musharrif, Mahmood, Sulman January 2007 (has links)
Some applications on mobile handheld devices are involved in exchanging critical information e. g. sending positioning data of heavy-good vehicles as a basis for road toll. This information must not be accessed or modified illegitimately; however, there is the risk that can be accessed or modified by modifying the application or during communication of the handheld device with its counterpart. This thesis report investigates concepts to shelter software from modification and how the communication of these applications running on a handheld device over public mobile network can be made more secure. This work was performed by carefully identifying relevant literature and developing the concept that how a smart card can enhance the security of the software running on it particularly for handheld devices. It also discusses the issues and threats to smart cards. Furthermore it proposes a solution based on the specified scenario. The security of the software comprises on two layers; one layer is for analysis prevention, making it hard to understand the behaviour of the program both at static and dynamic levels. The other layer is responsible for verifying the integrity of the software to ensure that it is not modified. The software is installed on smart card which acts as an extra security layer. The communication relies on the security features of the public mobile network with some enhancement. In order to shelter the communication via public Internet, a border based VPN solution is deployed between the public mobile network and the remote server using the network assisted approach. This thesis will serve as basis for designing a secure communication path for Swedish road toll system. / Some applications on mobile handheld devices are involved in exchanging critical information e. g. sending positioning data of heavy-good vehicles as a basis for road toll. This information must not be accessed or modified illegitimately; however, there is the risk that can be accessed or modified by modifying the application or during communication of the handheld device with its counterpart. This thesis report investigates concepts to shelter software from modification and how the communication of these applications running on a handheld device over public mobile network can be made more secure. This work was performed by carefully identifying relevant literature and developing the concept that how a smart card can enhance the security of the software running on it particularly for handheld devices. It also discusses the issues and threats to smart cards. Furthermore it proposes a solution based on the specified scenario. The security of the software comprises on two layers; one layer is for analysis prevention, making it hard to understand the behaviour of the program both at static and dynamic levels. The other layer is responsible for verifying the integrity of the software to ensure that it is not modified. The software is installed on smart card which acts as an extra security layer. The communication relies on the security features of the public mobile network with some enhancement. In order to shelter the communication via public Internet, a border based VPN solution is deployed between the public mobile network and the remote server using the network assisted approach. This thesis will serve as basis for designing a secure communication path for Swedish road toll system. / +46 762733374 +46 737038932
47

Design av en mobil arbetsterminal för röntgenavdelningar / Design of a mobile terminal for the radiology unit

Sivertsson, Emil January 2009 (has links)
In healthcare settings, administrative routines have been made more efficientthrough digitalization of information and the introduction of stationary computers.This situation is especially true when it comes to radiology, where pictures,referrals and patient information now is completely managed by advanced stationarycomputer systems. However, studies have shown that these rationalizationsdo not support flexible and mobile work routines.PocketRIS is a prototype illustrating a mobile terminal for radiology that hasbeen designed to simplify workflow and reduce the cognitive workload of healthcarepersonnel. PocketRIS includes a visualization of the clinicians work situationincluding a personal referral list that can make the user attentive of importantevents.Contextual Design has been used to elicit the basic system requirements for thesystem; 19 contextual inquires was conducted with physicians, nurses and assistantnurses at two different radiology clinics in Sweden during six days. The purposeof the study was also to identify the groups that have the greatest need for amobile terminal. The study was concerned with design and evaluation of differentsolutions with healthcare personnel.The result shows that physicians and assistant nurses have the greatest need ofa mobile terminal. Especially important for a mobile system is that it supportsevent-based work and provides a good overview over patients and the work situation.PocketRIS is an example of how these requirements this can be met at theradiology unit. / Genom effektiviseringar har en stor del av sjukvårdens administrativa rutiner digitaliseratsoch stationära arbetstationer införts på våra kliniker. Speciellt på röntgenavdelningarhanteras numera bilder, remisser och annan patientinformationmed hjälp av avancerade stationära datorsystem. Studier har dock visat att dessarationaliseringar ofta inte stödjer sjukvårdspersonalens flexibla och rörliga arbetsrutiner.PocketRIS är en prototyp för en mobil arbetsterminal som utvecklats specielltför att effektivisera arbetsflödet på röntgenavdelningar samt minska den kognitivabelastningen på sjukvårdspersonalen. PocketRIS innehåller en visualisering avklinikerns arbetssituation samt en personlig remisslista som kan göra denne uppmärksampå viktiga händelser.Contextual Design användes för att ta fram grundkraven på systemet; 19 styckencontextual inquirys genomfördes med läkare, sjuksköterskor och undersköterskorpå två olika röntgenkliniker i Sverige under totalt sex dagar. Arbetsplatsstudiensyftade även till att identifiera vilka grupper som har störst behov av en mobilarbetsterminal. Den senare delen av studien bestod av design och utvärdering avolika lösningsförslag tillsammans med sjukvårdspersonal.Resultatet av studien visar att det är läkare och undersköterskor som har störst behovav en mobil terminal. Speciellt viktigt för ett mobilt system är att det stödjerhändelsedrivet arbete och ger god överblick över patienterna och arbetssituationen.PocketRIS är ett exempel på hur detta kan uppfyllas för röntgenavdelningar.
48

Desarrollo de una aplicación de aprendizaje colaborativo sobre plataformas PDA.

Strasser Salinas, Karl Walter January 2007 (has links)
No description available.
49

Standardvärden av adduktormuskelstyrka inom svensk herrfotboll : En fall-kontroll studie

Nordvall, Viktor January 2017 (has links)
Abstract Decreased adductor muscle strength has been shown to be a risk factor for the development of future groin injury. The purpose of this study was therefore to examine standard values of isometric adductor muscle strength in Swedish male soccer and to map any differences in muscle strength between non-injured players and previously injured players. Twenty-one male soccer players were included in the study. A handheld dynamometer was used to record maximal isometric adductor muscle strength. The average value for isometric adductor muscle strength for all included players was 2,709 N/kg [± 0,37 SD]. Average values for non-injured and previously injured players were 2,716 N/kg [± 0,41 SD] and 2,537 N/kg [± 0,25 SD] respectively. The average value for the contralateral, non-injured side within the previously injured players was 2,86 N/kg [± 0,43 SD]. The difference in muscle strength between previously injured players and non-injured players was not statistically significant (p = .162). Conversely the difference between the non-injured side and the injured side in previously injured players was statistically significant (p = .018). Future studies should focus on including players of different levels to conclude whether the differences observed in this study is present regardless of the level of play.
50

Towards computational instruments for collaborating product concept designers

Tuikka, T. (Tuomo) 14 July 2002 (has links)
Abstract The concept design of small handheld electronic and telecommunication devices is a creative and dynamic process. Interaction between the designers plays an important role in the creation of new products. This thesis addresses the communication between product concept designers. The aim of this thesis is to examine new ways of developing computer systems for remote collaboration. Multiple research methods have been used so as to enrich the view of the research subject. Product concept design has been studied in field studies and at co-located concept design workshops where the object of design was uncertain. Co-located workshops were organised to examine the moment to moment interaction between designers to discover how designers collaborate when designing a design object in common. By applying the concepts of activity theory, the concept of instrument is elaborated. Four types of instruments to mediate between a designer and the object of design and collaborating designers are identified. These are the instruments used to externalize an understanding of the design object, the concrete means of interaction, the future artefact and the hypothetical user activity. The latter two make up the design object which designers' strive for, and can also be instruments for scaffolding each other. A conceptual model was developed to describe the design action and the instruments for collaboration. This model was used to gain insight into the creation of computer support for remotely collaborating designers by posing questions for computer systems design. To develop computer systems to support designers in remote collaboration, an understanding of both the requirements set by the field and the technological feasibility is needed. Three application prototypes are presented as proof of the concept and as an experiment with virtual prototyping technology. The concept of design action has been defined on the basis of activity theory. Computer-supported geographically distributed workshops have been organised and analysed using the design action as an analytical tool for the research material. I conclude that, in order to support remote collaboration of concept designers, computer systems should support collaborative construction of the object of design. Instruments, such as the future artefact, its various representations and the conceptual construct of hypothetical user activity are potential instruments for computation.

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