The peculiarities of light as a quality in architecture

Thesis (Master)--İzmir Institute of Technology, Architecture, İzmir, 2000Includes bibliographical references (leaves: 123-126)Text in English; Abstract: Turkish and Englishxii, 126 leavesThis study focuses on the evolution of lighting, both natural and artificial, and its effects on space. The twentieth century is taken as a focal time period, which had witnessed great developments in lighting field that caused inevitable transformations on space and spatial concepts. The evolution of artificial light, the significant innovations in building technology, and the new requirements formed under the desires of a new society are examined in their relation to architectural context with respond to light and lighting in space.The research includes cases from architectural and artistic world, and tries to investigate the role of light in the built environment. These cases are examined in a comparative way, considering the psychical and experiential characteristics of light in order to define its meaning for space.The study consists of two parts. In the first part the process of the evolution of lighting in the twentieth century, its position today, and the social, cultural, and technological alterations are examined deterministically. The second part is a classification of cases under the guidance of some concepts, which defines the interaction of light and space

An evaluation methodology for assessing artificial lighting quality in architecture: The case of Apikam

Thesis (Doctoral)--İzmir Institute of Technology, Architecture, İzmir, 2007Includes bibliographical references (leaves: 125-134)Text in English;Abstract: Turkish and Englishxiii, 269 leavesThe aim of this dissertation is to design a qualitative evaluation methodology for artificial lighting. There is a problem in the general characteristics of lighting industry, deriving from its technical vocabulary which is mainly based on quantitative parameters, values, and systems which in some ways are neglecting the main ingredient of architecture: the user. The evaluation methodology that is subject of this dissertation was considered as a qualitative approach to lighting quality. The study benefited from the knowledge of environmental psychology, concerning the effect of lighting on behaviors and tried to integrate it to the process of assessing lighting quality. The methodology depends on data collection by various means such as surveys, measurements, and computer simulations. To test the qualitative evaluation methodology, a case study was designed in the exhibition hall of the Ahmet Piritina City Archive and Museum (APIKAM) in zmir. The evaluation methodology was successfully operated and made a detailed evaluation possible on the two lighting systems in the exhibition hall of APIKAM. Both lighting systems failed in functional aspects, because of the high intensity of light they produce, the emission of UV and IR wavelengths, and glare problems. They are simply not appropriate for the selected environment, where organic . based materials are exhibited. Recessed fluorescent lighting system failed in physiological aspects as it triggers less arousal than halogen spotlighting system. Both lighting systems have failed in attention scale under psychological aspects, because none of them supply continuity in the order of visual clues that match with the sequential order of the exhibition. For aesthetic and environmental judgments, the results of the survey showed that halogen lighting system was the preferred one by the subjects. For the sub-part of feelings, recessed fluorescent lighting systems failed, because it influenced generally negative feelings, while positive feelings are generally influenced by halogen spotlighting system

ISR3: Communication and Data Storage for an Unmanned Ground Vehicle*

Computer vision researchers working in mobile robotics and other real-time domains are forced to con- front issues not normally addressed in the computer vision literature. Among these are communication, or how to get data from one process to another, data storage and retrieval, primarily for transient, image- based data, and database management, for maps, ob- ject models and other permanent (typically 3D) data. This paper reviews eorts at CMU, SRI and UMass to build real-time computer vision systems for mobile robotics, and presents a new tool, called ISR3, for com- munication, data storage/retrieval and database man- agement on the UMass Mobile Perception Laboratory (MPL), a NAVLAB-like autonomous vehicle

The peculiarities of light as a quality in architecture

Thesis (Master)--İzmir Institute of Technology, Architecture, İzmir, 2000Includes bibliographical references (leaves: 123-126)Text in English; Abstract: Turkish and Englishxii, 126 leavesThis study focuses on the evolution of lighting, both natural and artificial, and its effects on space. The twentieth century is taken as a focal time period, which had witnessed great developments in lighting field that caused inevitable transformations on space and spatial concepts. The evolution of artificial light, the significant innovations in building technology, and the new requirements formed under the desires of a new society are examined in their relation to architectural context with respond to light and lighting in space.The research includes cases from architectural and artistic world, and tries to investigate the role of light in the built environment. These cases are examined in a comparative way, considering the psychical and experiential characteristics of light in order to define its meaning for space.The study consists of two parts. In the first part the process of the evolution of lighting in the twentieth century, its position today, and the social, cultural, and technological alterations are examined deterministically. The second part is a classification of cases under the guidance of some concepts, which defines the interaction of light and space

Determination of nutrient values in drying citrus pulp with alternative drying methods

The present study was conducted to develop a drying technology for citrus (orange, lemon and grapefruit) pulps by using scrubber heat source and determination of nutrient values in dried citrus pulps. Scrubber heat source of a calcite production plant was equipped for a drying system which by provided a dried pulp production. Firstly, water content of pulps was reduced to approximately 12% by mechanical press centrifugation. The pulps were then transferred to the vibrio-fluidizer fluid bed. After than pre-dried pulps transferred to rotary drum dryer for 3 hours and total water content of the pulps was reduced to approximately 8%. Chemical values of powder dried orange, lemon and grapefruit pulps such as DM in the air (926.70, 885.30 and 774.00 g/kg), CP (31.50, 65.70 and 77.00 g/kg), CF (28.50, 12.30 and 14.60 g/kg), EE (204.40, 60.40 and 65.90 g/kg), ME Mcal/kg DM (1.584, 2.492 and 2.356), pH (6.94, 6.96 and 6.93) and percentage of digestibility (61.32, 47.85 and 61.44%) were determined. In conclude, citrus pulps could be used as re-cycled industrial feed in animal nutrition by drying with scrubber heat source dryer