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Detta examensarbete behandlar produktframtagningsprocessen för en portabel laddningsstation för mobila enheter. Arbetet är utfört tillsammans med Thule Groups R&D-avdelning. Arbetet syftar till att presentera en produktidé inom segmentet Bags & Outdoor som ska presenteras genom CAD och renderingar.Det som lägger grunden för arbetet är att det vid vistelse i naturen inte finns tillgång till strömkälla, vilket kan leda till onödig stress och oro för att ens handhållna enhet skall laddas ur. Detta kan vid olycka vara livshotande då räddningstjänst bör påkallas. Det är dessutom viktigt att kunna säkerställa att laddningsstationen kan skydda enheten från yttre påfrestningar.Arbetets bakgrund bottnar i en förstudie där en marknadsanalys har gjorts för att etablera en bild av vad marknaden vill ha. En konkurrensanalys har också gjorts för att hitta potentiella marknadsluckor. Teorin är i första hand hämtad från kurslitteratur där främst metoder som författarna har erfarenhet inom har valts. Vidare har en konceptutveckling genomförts där skisser och enkla CAD-underlag har genererat relevanta beslutsmatriser för att enkelt se vilka koncept som är genomförbara eller inte.Arbetet har resulterat i en skyddande container som laddar enheten via sladdkoppling. Strömförsörjningen sker genom extern strömkälla som placeras i eller på ryggsäcken. Containern hängs runt halsen med hjälp av en loop där ett USB-uttag finns tillgänglig i nacken för att förenkla laddningsprocessen.Arbetet fungerar som grund för vidare arbete med produkten. För att produkten ska kunna realiseras bör Thule ta fram produktionsunderlag samt göra en analys kring IP-klassning för väderbeständigheten samt materialval. / This report processes the product development regarding a portable charging station for handheld devices. It has been done in collaboration with the R&D-department on Thule Group. The thesis aims to project an idea for a product in the Bags & Outdoor segment and will be presented through CAD and renderings.The fundamental problem behind the report is that the lack of charging possibilities when hiking in nature, which can lead to concerns that the device’s battery will discharge. This can be fatal in the event of an accident where rescue services should be invoked. It is also important that the charging station can perform as a protective casing to withstand external shocks and ingress of dust and moisture.The thesis background stems from a pilot study where a market analysis has been made to create an understanding of what the market wants form this kind of product. To find possible market segments a competitive analysis has been made. The theory has been found in course literature where methods that are known to the authors have been chosen. Furthermore, a concept development has been done where sketches and simple CAD have generated relevant decision matrices. This is to see which concepts are feasible or not.The thesis has resulted in a protective hard case that also charges the device through a wired connection. The power supply comes from an external charger or solar panel that is mounted on or inside the backpack. The hard case is suspended around the neck with a loop, where in the back, an USB-port is located to simplify charging capability.This thesis will serve as a basis for further development of the product. To realize the product, Thule must develop production documentation and make an adequate analysis regarding IP-classification and materials.

Neutron coincidence counting is an important passive Nondestructive Assay (NDA) technique widely used for qualitative and quantitative analysis of nuclear material in bulk samples. During the fission process, multiple neutrons are simultaneously emitted from the splitting nucleus. These neutron groups are often referred to as coincident neutrons. Because different isotopes possess different coincident neutron characteristics, the coincident neutron signature can be used to identify and quantify a given material. In an effort to identify unknown nuclear samples in field inspections, the Portable Neutron Coincidence Counter (PNCC) has been developed. This detector makes use of the coincident neutrons being emitted from a bulk sample. An in-depth analysis has been performed to establish whether the nuclear material in an unknown sample could be quantified with the accuracy and precision needed for safeguards measurements. The analysis was performed by comparing experimental measurements of PuO2 samples to the calculated output produced using MCNPX and the Neutron Coincidence Point Model. Based on the analysis, it is evident that this new portable system can play a useful role in identifying nuclear material for verification purposes.

Neutron coincidence counting is an important passive Nondestructive Assay (NDA) technique widely used for qualitative and quantitative analysis of nuclear material in bulk samples. During the fission process, multiple neutrons are simultaneously emitted from the splitting nucleus. These neutron groups are often referred to as coincident neutrons. Because different isotopes possess different coincident neutron characteristics, the coincident neutron signature can be used to identify and quantify a given material. In an effort to identify unknown nuclear samples in field inspections, the Portable Neutron Coincidence Counter (PNCC) has been developed. This detector makes use of the coincident neutrons being emitted from a bulk sample. An in-depth analysis has been performed to establish whether the nuclear material in an unknown sample could be quantified with the accuracy and precision needed for safeguards measurements. The analysis was performed by comparing experimental measurements of PuO2 samples to the calculated output produced using MCNPX and the Neutron Coincidence Point Model. Based on the analysis, it is evident that this new portable system can play a useful role in identifying nuclear material for verification purposes.

A wearable cooling system was developed in this study for use in elevated temperature environments by military, fire-fighting, chemical-response, and other hazardous duty personnel. Such a system is expected to reduce heat-related stresses, increasing productivity and allowable mission duration, reduce fatigue, and lead to a safer working environment. The cooling system consists of an engine-driven vapor-compression system assembled in a backpack configuration, coupled with a cooling garment containing refrigerant lines worn in close proximity to the skin. A 2.0 L fuel tank in the backpack powers a small-scale engine that runs a compressor modified from the original air compression application to the refrigerant compression application here. A centrifugal clutch and reduction gear train system was designed and fabricated to couple the engine output to the refrigerant compressor and heat rejection fan. The overall cooling system, including the wearable evaporator, had a total mass of 5.31 kg (11.7 lb) and measured 0.318 נ0.273 נ0.152 m (12.5 נ10.75 נ6 inches). Testing was conducted in a controlled environment to determine system performance over a wide range of expected ambient temperatures (37.7-47.5㩬 evaporator refrigerant temperatures (22.2-26.1㩬 and engine speeds (10,500-13,300 RPM). Heat removal rates of up to 300 W, which is the cooling rate established in the literature as being required for maintaining comfort at an activity level comparable to calisthenics or moderate exercise, were demonstrated at a nominal ambient temperature of 43.3㠨110橮 Modeling the fuel as 88 percent methanol (LHV ~ 1.992ױ07 J/kg) and 12 percent oil, the system consumed 1750 W at an average fuel mass flow rate of 0.316 kg/hr to provide a nominal cooling rate of 178 W for 5.7 hrs between refueling.

Neutron coincidence counting is an important passive Nondestructive Assay (NDA) technique widely used for qualitative and quantitative analysis of nuclear material in bulk samples. During the fission process, multiple neutrons are simultaneously emitted from the splitting nucleus. These neutron groups are often referred to as coincident neutrons. Because different isotopes possess different coincident neutron characteristics, the coincident neutron signature can be used to identify and quantify a given material. In an effort to identify unknown nuclear samples in field inspections, the Portable Neutron Coincidence Counter (PNCC) has been developed. This detector makes use of the coincident neutrons being emitted from a bulk sample. An in-depth analysis has been performed to establish whether the nuclear material in an unknown sample could be quantified with the accuracy and precision needed for safeguards measurements. The analysis was performed by comparing experimental measurements of PuO2 samples to the calculated output produced using MCNPX and the Neutron Coincidence Point Model. Based on the analysis, it is evident that this new portable system can play a useful role in identifying nuclear material for verification purposes.

Neutron coincidence counting is an important passive Nondestructive Assay (NDA) technique widely used for qualitative and quantitative analysis of nuclear material in bulk samples. During the fission process, multiple neutrons are simultaneously emitted from the splitting nucleus. These neutron groups are often referred to as coincident neutrons. Because different isotopes possess different coincident neutron characteristics, the coincident neutron signature can be used to identify and quantify a given material. In an effort to identify unknown nuclear samples in field inspections, the Portable Neutron Coincidence Counter (PNCC) has been developed. This detector makes use of the coincident neutrons being emitted from a bulk sample. An in-depth analysis has been performed to establish whether the nuclear material in an unknown sample could be quantified with the accuracy and precision needed for safeguards measurements. The analysis was performed by comparing experimental measurements of PuO2 samples to the calculated output produced using MCNPX and the Neutron Coincidence Point Model. Based on the analysis, it is evident that this new portable system can play a useful role in identifying nuclear material for verification purposes.

From mid-2000s, the realm of portable and embedded computing has expanded to include a wide variety of applications. Data mining is one of the many applications that are becoming common on these devices. Many of today’s data mining applications are compute and/or data intensive, requiring more processing power than ever before, thus speed performance is a major issue. In addition, embedded devices have stringent area and power requirements. At the same time manufacturing cost and time-to-market are decreasing rapidly. To satisfy the constraints associated with these devices, and also to improve the speed performance, it is imperative to incorporate some special-purpose hardware into embedded system design. In some cases, reconfigurable hardware support is desirable to provide the flexibility required in the ever-changing application environment. Our main objective is to provide chip-level and reconfigurable hardware support for data mining applications in portable, handheld, and embedded devices. We focus on the most widely used data mining tasks, clustering and classification. Our investigation on the hardware design and implementation of similarity computation (an important step in clustering/classification) illustrates that the chip-level hardware support for data mining operations is indeed a feasible and a worthwhile endeavour. Further performance gain is achieved with hardware optimizations such as parallel processing. To address the issue of limited hardware foot-print on portable and embedded devices, we investigate reconfigurable computing systems. We introduce dynamic reconfigurable hardware solutions for similarity computation using a multiplexer-based approach, and for principal component analysis (another important step in clustering/classification) using partial reconfiguration method. Experimental results are encouraging and show great potential in implementing data mining applications using reconfigurable platform. Finally, we formulate a design methodology for FPGA-based dynamic reconfigurable hardware, in order to select the most efficient FPGA-based reconfiguration method(s) for specific applications on portable and embedded devices. This design methodology can be generalized to other embedded applications and gives guidelines to the designer based on the computation model and characteristics of the application. / Graduate

Thesis (Doctoral)--İzmir Institute of Technology,İzmir, 2004 / Keywords:Change, adaptability, responsive architecture, kinetic systems, kinematic. Includes bibliographical references (leaves. 86).

Thesis (M.Arch)--Unitec New Zealand, 2009. / Landscape format. Includes bibliographical references (leaves 69-72).