Browsing by Subject "Orientation"

Now showing 1 - 5 of 5

Open Access
A critical analysis of sunlight patches in patient rooms via simulation
(Taylor & Francis, 2008) Tanrıöver, S.; Düzgüneş, A.; Yilmazer, S.
Recent research on patient recovery has indicated significant improvement in the conditions of patients treated in sunny rooms compared to those treated in shaded rooms. In this study, the amount of sunlight received in patient rooms with different orientations and opening positions was observed. Desktop Radiance 1.02 software was used to simulate the conditions in a typical double patient room. The area and location of sunlight patches on room surfaces were considered as analog indicators for the investigation. Seven orientations and three positions of standard window openings were studied on an hourly basis in different combinations at solstices and equinoxes from sunrise to sunset. Data were statistically analyzed for advantageous combinations of orientation and opening positions. Results indicated that rooms with right- and left-shifted openings receive direct sunlight more than rooms with centered openings, and these have sunlight mostly on walls, while those with centered openings have it mostly on floors. The study revealed that opening positions rather than orientation is crucial to the design of patient rooms regarding the penetration of sunlight. Orientation is effective only when the room surfaces are studied individually. The study enabled sun patches to be visualized in relation to patient beds, which is a significant determinant that can affect the location of the bed, and so patient in the room. The paper concludes with four proposals of an informal choice from these combinations that both admits sunlight and protects the patient from glare and excessive heat gain.
Open Access
Diagnosing organizational culture
(1997) Karalar, Canan
In today’s dynamic business environment concepts like organizational development, restructuring, and change management has become the most popular subjects. Although it has begun to loose some of its popularity, organizational culture is the basis for all these concepts. Since organizational culture is a concept that can hardly be defined and agreed upon, this study examines the different approaches to the definition and the different approaches on how to diagnose organizational culture. The four dimensional culture model; questionnaire developed by Harrison and Strokes is explained and applied to three companies operating in different sectors in order to obtain a general understanding of their existing and preferred culture orientations. The results indicate that the questionnaire is a valid tool to begin discussions on organizational culture. This study can be taken as the first step of a larger culture change project since it analyzes the differences between the existing and preferred culture orientations.
Open Access
Interlocking shish-kebab morphology in polybutene-1
(John Wiley & Sons, Inc., 2002) Kalay, G.; Kalay, C. R.
The aim of this research was to explore the effect of shear-controlled orientation injection molding (SCORIM) on polybutene-1 (PB-1). This article describes the methods and processing conditions used for injection molding and discusses the properties of the moldings. Both conventional and SCORIM have been used for the production of moldings. SCORIM is based on the application of specific macroscopic shears to a solidifying melt that facilitates enhanced molecular alignment. The effect of the process was investigated by performing mechanical tests, X-ray studies, differential scanning calorimetric studies, polarized light microscopy, and atomic force microscopy (AFM). Moldings exhibited an improved mechanical performance as compared with conventional moldings. Young's modulus was increased over twofold, and the impact energy was enhanced by 60%. The improvement in mechanical performance was combined with an increase in crystallinity and enhanced molecular orientation. The application of SCORIM also favored the formation of the stable Form I' in PB-1. The formation of interlocking shish-kebab morphology following the application of SCORIM was observed in the AFM studies. Relationships between the mechanical properties of PB-1 and the micromorphologies formed during processing are demonstrated.
Open Access
Silicon nanowire network metal-semiconductor-metal photodetectors
(AIP Publishing LLC., 2013-08-23) Mulazimoglu, E.; Coskun, S.; Gunoven, M.; Butun, B.; Özbay, Ekmel; Turan, R.; Unalan, H. E.
We report on the fabrication and characterization of solution-processed, highly flexible, silicon nanowire network based metal-semiconductor-metal photodetectors. Both the active part of the device and the electrodes are made of nanowire networks that provide both flexibility and transparency. Fabricated photodetectors showed a fast dynamic response, 0.43 ms for the rise and 0.58 ms for the fall-time, with a decent on/off ratio of 20. The effect of nanowire-density on transmittance and light on/off behavior were both investigated. Flexible photodetectors, on the other hand, were fabricated on polyethyleneterephthalate substrates and showed similar photodetector characteristics upon bending down to a radius of 1 cm.
Open Access
Spatial factors affecting wayfinding and orientation: A case study in a shopping mall
(SAGE, 2000) Dogu, U.; Erkip, F.
Although wayfinding and orientation in complex buildings is an important criterion for environmental behavior, research on the subject remains limited and the issue is not considered sufficiently during the design process. This article examines the factors that affect wayfinding behavior of individuals in a shopping mall and explains how their behaviors are influenced by factors such as building configuration, visual accessibility, circulation systems, and signage. The case study conducted in a mall in Turkey draws a sample profile of Turkish society from a wayfinding point of view. The relation between wayfinding behavior and shopping activity is discussed. The results show that people did not find the signage system sufficient. Although they found the mall an easy setting from the wayfinding point of view, they still required better solutions to find specific destinations such as telephone booths, restrooms, or stores located in parts of the building that were not visually accessible.