The task of this master’s thesis is design and implementation subharmonic mixer for the microwave band. Subharmonic mixer is based on the principle of antiparallel diode. In the first two parts are theoretically described mixers (subharmonic mixer) and topology suitable for implementation. Another work describes the design subharmonic mixer. The proposal is implemented in the program Ansoft designer. DPS is created in Eagle or in Ansoft Designer. The mixer is designed and implemented first on the lower frequency and consequently at higher frequencies (24,048 GHz and 47,088 GHz). Work also includes the measurement results of the mixer.

The task of this master’s thesis is design and implementation subharmonic mixer for the microwave band. Subharmonic mixer is based on the principle of antiparallel diode. In the first two parts are theoretically described mixers (subharmonic mixer) and topology suitable for implementation. Another work describes the design subharmonic mixer. The proposal is implemented in the program Ansoft designer. DPS is created in Eagle or in Ansoft Designer. The mixers are designed and implemented first on the lower frequency and consequently at higher frequencies (24,048 GHz and 47,088 GHz). Work also includes the measurement results of the mixers.

The warehouse will be seen as an outlet of décor elements and designer furniture as well as of South African and international décor shops and designs. A showroom of designer furniture (of well-known designers like Rietveld, Graves, Gehry, etc.) for the public and interested and affected parties will be provided. All the different functions must be integrated and the interaction between various designers and different décor elements will form an important aspect of the warehouse. DiD Warehouse must facilitate innovation and welcome new talents among collaborators along with the "design consumer", an informed and sensitive buyer who, by setting in motion a buying project of his own, is transforming distribution. Even retailers will have to change their attitude, and get rid of the "museum store" concept, that is, a space where the objects on display cannot be touched. The warehouse should be seen as an event place, which has a give-and-take relationship with the life and culture of the city and which attracts the visitor, plying him with emotions and services over and above a simple exchange of merchandise and money over a counter. Growth of any kind brings with it an ability to keep changing, doing away with moldy prejudices to make room for the new. Transformation, movement and lightness are, in the end, the words that best sum up the character of what the designer warehouse must be in the future. Time, scale and functional differences must be solved through the design and planning of spaces. The building will be seen as a "container". South African and international influences, as well as space perceptions of the Post-Modernist era, must be incorporated to set a precedent for the warehouse. A true South African influence and modern style will be reflected through the architecture. The furniture and décor elements will form part of the building and architecture, and must complement each other. DiD Warehouse will house historical and current designer furniture and décor elements, to ensure prospects, possibilities and opportunities for designers of the future. Local designers will get exposure to the international design industry, and a standard for each design and designer will be set. Differences versus similarities must positively reflect the diversity of South African and international design. Import and export of designer furniture and décor are going to be very important aspects in the administration and economical management of the warehouse. The architecture and interior design of the warehouse will complement each other and create the same feeling, that of inspiration, creativity, modern design, imagination, reality and exclusivity. a designer masterpiece as well. Every well-known architect has designed a piece of furniture in his/her life The building will reflect its function and the activities within the façade and architecture, and will aim to be time and the relationship between architecture and designer furniture is very important and dynamic. One of the most important functions of the building will be to launch careers and test ideas. The exterior (architecture and façade) will set a standard for what is inside the building and the warehouse will aim to set a precedent for future furniture development in South Africa. The building will strive to be a very important catalyst in generating designer décor and furniture. There is a demand for steady retail, which will revive the industrial and export sector. South Africa remains the powerhouse of the continent and medium to long-term prospects are good. This means that deals that can be successful today will become that much more attractive in the future. The warehouse must encourage other designers to make conscious use of design as a factor in the competitive process. Precedents will be the platform of the final product. The building must be adaptable and flexible to accommodate continuous changes in technology, fashion and the changing environment and way of living of each person. It must be flexible in terms of more possibilities, greater prospects and better investments. Young entrepreneurs must have the opportunity to show their designs. The warehouse will be educational in a theoretical, practical and visual way. Furniture design courses will be held from time to time as well as exhibitions held by entrepreneurs and "young-up-and-coming" designers. That will create contrasts in price and experience. The aim of the thesis is to design a modern designer furniture and décor warehouse (situated in a security business park) to fulfill the needs of the community and industry; to investigate well-known architects and furniture designers theoretical approaches and philosophy towards design; to ensure that DiD Warehouse will be one of its kind in South Africa; to set a market for our local talent and to reflect diversity in today's modern designer furniture and décor; to showcase local and international design for the public and to give everyone easy access to and from the building; and finally, to create a place (warehouse) from another century, not of the past but of the future - based on human relationships, master intelligence, respect and loyalty; which will hold the key to our future in design - the rediscovery of compassion. / Dissertation (MArch (Prof))--University of Pretoria, 2003. / Architecture / unrestricted

Background Herbal marijuana alternatives (HMA), legal plant products adulterated with synthetic cannabinoid receptor agonists, represent a growing public health concern. Only a few case reports describe HMA and synthetic cannabinoid’s clinical toxicity. We describe an outbreak of HMA abuse primarily in the Midwest, the clinical presentation of HMA toxicity, and clinical and forensic testing. Methods During the course of ongoing surveillance for emerging drugs of abuse between November 2009 and August 2010, we retrospectively and prospectively identified a convenience sample comprising 81 cases of abuse of HMA products. Subject demographics, vital signs, lab results and urine were obtained (when available) and tested via gas chromatography mass spectrometry (GCMS) analysis. Samples of HMAs and synthetic cannabinoids were also analyzed via GCMS. Results HMA users were predominantly young males who inhaled HMAs. Analysis of their urine detected synthetic cannabinoid parent compound in one subject. GCMS analysis of synthetic cannabinoids established a reference library that confirmed the presence of synthetic cannabinoids in sampled HMA products. Conclusion HMA products were available in head shops, gas stations, and via the Internet. We have confirmed the presence of synthetic cannabinoids in these HMA products. The tachycardia, hypertension, agitation, anxiety, vomiting and hallucinations observed in this convenience sample are not readily explained by the presence of synthetic cannabinoids acting on CB1 and CB2 receptors. Further research must be done on HMA products and their abusers.

No description available.

Submitted in fulfillment of the degree by dissertation MASTERS DEGREE: ARTS AND CULTURE MANAGEMENT In the Department of Humanities FACULTY OF THE ARTS AND CULTURE MANAGEMENT UNIVERSITY OF THE WITWATERSRAND AUGUST 2014 / This dissertation aims to examine how pottery factories in the North West province were conceived and how relevant their functions are, within the confines of craft product development training initiatives, as potential contributors to social empowerment, job creation and economic sustainability today. The dissertation will trace and analyse the impact of specific training initiatives undertaken to empower potters from one of these factories. The focus will be on the methods used to transfer product design and craft manufacturing skills (craftsmanship) as well as evaluating the challenges and success of these methods in promoting self-reliance and sustaining livelihood economically. The impact of these methods will be assessed by the beneficiaries’ ability to integrate concepts, ideas and action as well as their understanding of the markets and ability to follow through orders. The research draws inspiration from the South African National Development Plan: Vision 2030 (NDP, 2011: 10). The plan envisages that by 2030; “the economy should be close to full employment; equip people with the skills they need; ensure that ownership of production is less concentrated and more diverse (where black people and women own a significant share of productive assets); and be able to grow rapidly, providing the resources to pay for investment in human and physical capital”. One of the key sectors anticipated to contribute in achieving the vision of the NDP is the craft sector as suggested by the Department of Trade and Industries (DTI’s) Customised Sector Programme (DTI, 2005). This vision is possible in the craft community if community development efforts are not rushed towards achieving immediate results, but rather focus on the long term of investing in and empowering people with the relevant skills. Writing about applying design to alleviate poverty, Thomas (2006) suggests that sustainable results can only be achieved in the long term because short term initiatives are dependent on single individuals from ‘outside’ organisations for designs and markets. And therefore this research focuses on pottery factories established in the year 2010 by Mintek’s Small Scale Mining Beneficiation Programme, particularly the Timbita Ceramic Incubator. According to the Minister of Arts and Culture the honourable Mr Paul Mashatile, the cultural and creative industries have the potential to be an important driver of economic growth and job creation (Business report, 5 April 2011, 17). Perceiving the creative sector beyond aesthetic and human development dimensions, and more as a sector with the potential to contribute to economic growth and job creation stimulated the assumption of more responsibility for stakeholders and government to invest in both financial and skills development. It is important then, to analyse whether the training methods implemented are efficient and effective in empowering these communities and whether or not they yield sustainable results. It is, therefore, anticipated that this study will contribute toward, at least within the South African context, the limited literature in craft development as an economic industry from the context of crafts product development and craftsmanship skills transfer. Applied research looking at practical cases will be combined with various literature engagements, and supported by semi-structured in-depth interviews used as tools to obtain information for this research.

If you want procedurally generated content in your games, you often have to rely on your own ability to develop the desired tools. This can be limiting for newer game developers, leading to certain types of gameplay not being considered when designing games. One instance of this problem regards procedurally generated planets, a rather uncommon type of game world, with a lack of tools online to create your own. To improve upon the issue, this paper sets out to explore how a tool can be developed to supply game developers with worlds in the form of planets. This resulted in Planet Designer, a Unity tool for quickly generating diverse planets with the potential to be used in a variety of game concepts. The tool utilizes layers of manipulated noise to generate wide ranges of terrain, which can be populated with trees, bushes, stones, etc. using a brush. By playing around with the terrain and ocean shaders, the user can give each planet a unique aesthetic through different colors, textures, and thresholds. The paper features an extensive description of how the tool’s features were implemented, and how the tool was evaluated, as well as a discussion about why the tool is considered a valid solution to the problem.

In the current development work conducted at BAE Systems Hägglunds AB's electronics department, there are often long lead times from started projects to finished electronic units. This means that it is necessary to take a new approach to development in order to meet changing specifications and new interfaces. To mitigate the risks in design and interfaces, testing of the system needs to start as early as possible. Against the given background, the aim of the project is to develop and evaluate a modular concept for different Input/output (I/O) interfaces between a carrier board and modules. The modular concept where developed using Altium Designer and through schematic design and PCB design the designs was developed for the intended concept regarding modularization. To test the connections between the carrier board and modules and to get a visual picture over how it could look, Altium designers Multi-board Assembly function where used. By analyzing the boundaries between the carrier board and I/O-modules, new limitations were discovered in the contact surfaces between them. The focus turned to improve the existing carrier board by replacing the existing connectors with more modular alternative connectors that better fits the intended concept of the modularity in the I/O-modules. Three different alternatives for the current carrier board were evaluated and the alternative that is the best for modularization is to change the connectors on the current carrier board. The design of the I/O-modules are based on the already existing I/O designs and the I/O-modules designed were Digital Input (DIP) and Digital Output (DOP). The results that emerged during the project are as follows: The designed I/O-modules follow a relationship-based design to produce a combination of the different circuit solution already available at BAE Systems. The circuits DIP and DOP are the most common I/O-interfaces in use and the focus was to develop modules for these. In order to achieve the optimal modularity with respect for the intended concept, the current design of the carrier boards need to change to meet the intended concept regarding modularization. / I det nuvarande utvecklingsarbetet som bedrivs på BAE Systems Hägglunds ABs elektronikavdelning finns det ofta långa ledtider från påbörjade projekt till färdiga elektronikenheter. Detta leder till att omtag i utvecklingen blir nödvändigt för att kunna möta ändrade specifikationer och nya gränsytor. För att mitigera risker i design och gränsytor behöver testning av systemet påbörjas så tidigt som möjligt. Projektet syftar mot den givna bakgrunden att ta fram och utvärdera ett modulärt koncept för olika Input/Output (I/O) gränssnitt mellan bärarkort och moduler. Det modulära konceptet utvecklades i Altium Designer och genom schemaritning och PCB design utvecklades designerna för det tänkta konceptet gällande modularisering. För att testa anslutningar mellan bärarkort och modul och samtidigt få en visuell bild över hur resultatet kan se ut, användes Altium Multi-board Assembly. Genom att analysera avgränsningar mellan bärarkort och I/O-modul upptäcktes nya begränsningar i kontaktytorna mellan dem. Fokus hamnade på att förbättra det befintliga bärarkortet genom att byta ut de befintliga kontakterna till mer modulära kontakter som passar det tänkta konceptet för I/O-modulernas modularitet. Tre olika alternativ för det nuvarande bärarkortet togs upp och det alternativ som är bäst sett till Modularisering är att ändra de kontakter som finns på det nuvarande bärarkortet. Designen av I/O-modulerna utgick ifrån de redan befintliga kretslösningar som finns framtagen och de I/O-moduler som designades var Digital input (DIP) och Digital Output (DOP). De resultat som kom fram genom projektet är följande: De I/O-moduler som framställts följer en relationsbaserad design för att framställa en kombination av de olika kretslösningar som redan finns framtagen av BAE Systems. Kretsarna DIP och DOP är de vanligaste I/O-gränssnitten som används och fokus blev att ta fram moduler för dessa. För att uppnå optimal modularitet med anseende på det tänkta konceptet behöver den nuvarande designen av bärarkortets kontakter ändras för att kunna möta den optimala modulariteten för det tänkta konceptet.

No description available.

This thesis gives you an introduction to rewarding conversations and a set of guidelines for reaching them more easily. I have found that there is an interest for having rewarding conversations with strangers. In a number of experiments I have tested a variation of arranged meetings between strangers aiming at creating rewarding conversations. This study have shown that more participants reaching rewarding conversations in a private meeting in contrast to a space where several conversations takes place. Several experiments has confirmed that there is an interest for listening to other people’s rewarding conversations and that they prefer longer, but edited conversations. By studying the experience of listing to a conversation I found that the understanding of what we hear will be different for everyone, down to the level of a specific word. Similarly the understanding of what you hear will change depended on if you are listening alone or with other people, which means that the surrounding situation affect what you perceive. It is still possible to recognise a general quality despite of subjective preferences. Based on the findings I have created a design proposal, a website whose goal is to encourage rewarding conversations through allowing to arranging and spreading them.