High efficiency air blowers to meet future portable aerosol sampling applications were designed, fabricated, and evaluated. A Centrifugal blower was designed to achieve a flow rate of 100 L/min (1.67 x 10^-3 m^3/s) and a pressure rise of WC " 4 (1000 PA). Commercial computational fluid dynamics (CFD) software, FLUENT 6.1.22, was used extensively throughout the entire design cycle. The machine, Reynolds number (Re) , was around 10^5 suggesting a turbulent flow field. Renormalization Group (RNG) κ−ε turbulent model was used for FLUENT simulations. An existing design was scaled down to meet the design needs. Characteristic curves showing static pressure rise as a function of flow rate through the impeller were generated using FLUENT and these were validated through experiments. Experimentally measured efficiency (ηEXP) for the base-design was around 10%. This was attributed to the low efficiency of the D.C. motor used. CFD simulations, using the κ−ε turbulent model and standard wall function approach, over-predicted the pressure rise values and the percentage error was large. Enhanced wall function under-predicted the pressure rise but gave better agreement (less than 6% error) with experimental results. CFD predicted a blower scaled 70% in planar direction (XZ) and 28% in axial direction (Y) and running at 19200 rpm (70xz_28y@19.2k) as the most appropriate choice. The pressure rise is 1021 Pa at the design flow rate of 100 L/min. FLUENT predicts an efficiency value based on static head (ηFLU) as 53.3%. Efficiency value based on measured static pressure rise value and the electrical energy input to the motor (ηEXP) is 27.4%. This is almost a 2X improvement over the value that one gets with the hand held vacuum system blower.

Syftet med den här uppsatsen är att analysera hur ett framtida specifikt skydd för visselblåsare bör se ut i svensk lag. Norsk rätt till skydd för visselblåsare och Europarådets krav på sådan lagstiftning analyseras och jämförs för att kunna besvara syftet. Svensk rätt ger idag ett visst skydd för visselblåsare, dock erhåller alla inte samma skydd eftersom yttrandefriheten enbart gäller mot det allmänna. Det partiella skydd som finns är svåröverskådligt eftersom regleringen finns inom flera olika rättskällor. I norsk rätt har alla rätt till yttrandefrihet i anställningsförhållandet. Anställda har också rätt att varsla om kritikvärdiga förhållanden när det sker på ett försvarligt sätt, då råder ett repressalieförbud. I övrigt ska interna system införas när förhållandena kräver det. Europarådet ställer en rad krav som ska uppfyllas i en skyddslagstiftning för visselblåsare. Framförallt ska lagstiftningen erbjuda ett heltäckande skydd som ger ett säkert alternativ jämfört med att hålla tyst om oegentligheter som pågår. En jämförelse mellan den norska rätten och Europarådets krav visade att de är överensstämmande. Vid jämförelsen mellan svensk rätt och det norska systemet åskådliggjordes det att de båda systemen i grunden är lika. Skillnader finns dock vilket leder till att det i Norge finns ett starkare skydd för visselblåsare. Slutsatsen om hur ett svenskt skydd bör se ut blev mycket likt det norska systemet. För det första bör de svenska grundlagarna ändras så att yttrandefriheten gäller i alla anställningar. För det andra ska alla arbetstagare ha rätt att slå larm om oegentligheter och andra missförhållanden på arbetsplatsen på ett försvarligt tillvägagångssätt. När de kriterierna är uppfyllda råder ett repressalieförbud. Eventuellt kan det också införas lagkrav på att arbetsgivaren ska införa interna system för visselblåsning, dock enbart när förhållandena kräver det.

<p>This study aims to investigate, from an institutional perspective, the implications of the</p><p>new anti-corruption law in Viet Nam with a particular focus on its impact on civil society</p><p>and individual rights to report on corruption. The overarching research question is: How do</p><p>formal and informal institutions affect whistle-blowers possibilities to engage in combat of</p><p>corruption in Viet Nam? To blow the whistle in Viet Nam can be problematic, with</p><p>consequences such as loosing his/hers job and social exclusion. Whistle-blowers in Viet</p><p>Nam today seem to have an insufficient confidence to official authorities. Moreover, a</p><p>problem of significance is that whistle-blowers have to state their name and contact details</p><p>when reporting on corrupt acts to competent agencies. Another problem is that civil society</p><p>is strongly connected to the CPV (Communist Party of Viet Nam).</p>

Whistle-blowers have an important role as they reveals incongruities in organizations in order to enable improvement of working conditions. However, there is a risk of reprisals against the employees when expressing their discontent, which may prevent them from blowing the whistle. Since whistle-blowers in private sectors have less protection of freedom of expression against their employer, the protections of whistleblowing also become weaker in these organizations. Nowadays it is becoming increasingly common for businesses in the welfare sector to govern under private management, but still with public funding. A weak protection of whistleblowing therefore reduces the public's opportunity to gain insight into how public funds are used. Therefore the aim of the study is to examine the protection of whistleblowing in private sectors and especially highlight the problem with a weak protection in private organizations that are publicly funded. The Swedish law has no general regulation for the protection of whistle-blowers, which leads to a complex legal situation. It will additionally be new regulations introduced in this area, which might lead to further complexity. The second purpose of the study is therefore to analyse the new regulations and identify some possible consequences of the legislation. A legal dogmatic method is used in the essay with the purpose of investigating the current legislation. The study shows that employees in private sectors have a relatively expansive right to criticize their employer and the conditions at workplaces. The judgement depends on how the employee chooses to express their criticism and therefore there are several factors that must be taking into account. The new regulations will hopefully reduce the risk of reprisals related to whistleblowing. On the other hand there are some identified weaknesses in the legislation that might imply that the intention of the law not would be fulfilled. Therefore the question still stands if the whistle-blower’s situation in the private sector will be improved by the new regulations.

Evaporative cooling is an alternative and efficient method of cooling in dry climates. When a liquid evaporates into the surrounding gas, the energy required for the change of phase produces a cooling effect. The wet bulb depression is the measure of potential for evaporative cooling. Greater the wet bulb depression greater is the cooling effect, and vice versa. The residential desert cooler, apart from cooling the air increases the humidity of the air in the room by absorbing moisture from the water supplied to the cooler. This may result in an undesirable increase in humidity level. Allergies is an additional problem with direct evaporative coolers. Indirect evaporative cooling does not have these two drawbacks. In the present work a small indirect evaporative cooler is developed with a cross flow heat exchanger and the performance of the cooler is evaluated under controlled environmental conditions. The results are compared with the results of an analytical model developed by assuming constant water film temperature on the external wall of the heat exchanger tube. The experimental results of the cooler show a satisfactory agreement with the analytical values. Design calculations are presented to show the performance characteristics of indirect evaporative coolers under different temperature and humidity conditions of the ambient. It has been shown that reducing the heat exchanger tube diameter to around 2 mm results in better cooling effect. Climatic conditions of different Indian cities are discussed with respect to the expected effectiveness of indirect evaporative coolers.

The primary goal of this study is firstly to analyse the Fraud Prevention Policy and Strategy, the Policy on Protection of Whistle-Blowers, and the Policy Document on Forensic Audit Process of the Department of Trade and Industry (DTI) in order to establish the reason for the ongoing spate of fraudulent and corrupt activities among employees within the DTI Head Office, regardless of the relevant policies put in place. Secondly, another goal is also to establish other reasons that could be linked to the reoccurrence of fraudulent and corrupt activities within the DTI. During the research survey questionnaires were administered to employees of the DTI. Furthermore, online interviews were conducted with a purposively selected sample within two divisions of the DTI. In addition, a literature study was conducted to acquire relevant information and perspectives from available national and international literature. Various objectives were fulfilled in this study as follows:  It was established whether the reporting of internal or external fraud and corruption and the relevant policies put in place contribute in any manner to the prevention of fraudulent and corrupt activities at the Department of Trade and Industry's national office.  It was determined if there is a policy document on measuring these policies after they have been implemented.  It was determined how the Department of Trade and Industry's national head office addresses fraud and corruption. Other possible reasons for the Department of Trade and Industry employees' lack of reporting fraud and corruption in their departments, other than the fear of being victimised, were identified.  The views and opinions on the internal reporting of fraud and corruption were determined.  The degree of awareness of the investigative procedures related to fraud and corruption among the Department of Trade and Industry management and their employees were determined.  It was established if employees have faith in the Department of Trade and Industry's investigative procedures to fraud and corruption.  The extent of knowledge on the importance of reporting fraudulent and corrupt activities in the DTI were established.  Feedback to help minimise fraud and corruption within the Department of Trade and Industry and improve future strategies was provided. This study contributes to the knowledge base with regard to fraud and corruption within the Department of Trade and Industry. / Criminology and Security Science / M. Tech (Policing)

Mit Hilfe von Gesetzesinitiativen wurden strenge Corporate-Governance-Anforderungen erhoben. Diese formale Governance lässt jedoch das Individuum als moralisch handelndes Subjekt völlig außer Acht. In dieser Arbeit stehen der Handelnde und der Handlungsprozess im Vordergrund. Die Bedeutung der individuellen Urteilskraft in Hinweisgebersystemen wird exemplarisch herausgearbeitet und Förderungspotential aufgezeigt.

This study aims to investigate, from an institutional perspective, the implications of the new anti-corruption law in Viet Nam with a particular focus on its impact on civil society and individual rights to report on corruption. The overarching research question is: How do formal and informal institutions affect whistle-blowers possibilities to engage in combat of corruption in Viet Nam? To blow the whistle in Viet Nam can be problematic, with consequences such as loosing his/hers job and social exclusion. Whistle-blowers in Viet Nam today seem to have an insufficient confidence to official authorities. Moreover, a problem of significance is that whistle-blowers have to state their name and contact details when reporting on corrupt acts to competent agencies. Another problem is that civil society is strongly connected to the CPV (Communist Party of Viet Nam).

Si la présence d’une activité verrière ne semble être connue qu’à partir du XIVème siècle dans le quart sud ouest de la France, c’est véritablement au XVIème siècle qu’elle prend toute son ampleur et atteint son apogée, au vu des nombreux ateliers établis à cette période. En confrontant les archives écrites et les « archives du sol », cette étude vise à apporter un éclairage sur l’évolution de la production du verre entre la période médiévale et la période moderne, et sur les relations qui régissent les maitres verriers, les marchands et les producteurs de matières premières entrant dans la composition du verre. Les flux d’échanges issus de cette activité verrière mettent en relief l’activité économique importante générée au départ d’installations ancrées localement à proximité des ressources forestières indispensables au fonctionnement des fours des verriers, et qui pourtant irriguent l’économie régionale en favorisant les échanges commerciaux et en développant un écosystème autour du transport, de l’activité bancaire, et du troc de marchandises. L’une des caractéristiques fortes de ces échanges commerciaux est qu’ils allient deux espaces maritimes, mer méditerranée et océan atlantique, sur un axe reliant La Rochelle à Narbonne. L’étude des objets en verre fabriqués dans cette zone géographique tend plutôt à montrer que la fabrication est diversifiée, tant vis-à-vis des types d’objets que dans les formes réalisées. Seules quelques productions locales particulières semblent s’adresser à un marché local ou régional. / If the presence of a glass activity seems known only from the 14th century on in the South-West of France, it's truly in the 16th century that it spread and reached its peak, given the numerous workshops established at this time. Comparing the written archives and « ground archives », this study aims to shed light on the evolution of glass production between medieval times and modern times, and on the connections between glass-blowers, merchants and producers of raw materials necessary to the production of glass. The trade flows springing from this glass activity highlight the significant economic activity generated from local plants near forest ressources necessary for the working of glass ovens. These local plants supply regional economy favouring trade and developing an ecosystem based around transport, banking and bartering. One of the main characteristics of this trade is that it linked up two maritime areas, the Mediterranean sea and the Atlantic Ocean, on an axis from La Rochelle to Narbonne. The study of the glass objects made in this geographical area tends to show that the production is varied, both in terms of the types of objects and of the shapes created. Only a few particular local productions seem to be destined to a local or regional market.

Mit Hilfe von Gesetzesinitiativen wurden strenge Corporate-Governance-Anforderungen erhoben. Diese formale Governance lässt jedoch das Individuum als moralisch handelndes Subjekt völlig außer Acht. In dieser Arbeit stehen der Handelnde und der Handlungsprozess im Vordergrund. Die Bedeutung der individuellen Urteilskraft in Hinweisgebersystemen wird exemplarisch herausgearbeitet und Förderungspotential aufgezeigt.