Critical Discourse in Design - Intention versus Perception Assignment

Critical Discourse in Design - Intention versus Perception - Assignment Example To achieve this, the company has a team of professionals, including the most creative minds and the best directors in the country. Some of the recent campaigns by the company include (included are the links to the commercials).   Movistar is one of the top clients for this subsidiary and they did the campaign for its networks. The title of this campaign was ‘gravity’ and one of these videos was directed by two of the most known directors in the industry, Jorge Soto and Charlie Valderrama. The commercial was in the form of a video, this makes it easy to capture the attention of the target audience. People are more likely to watch moving images than any other form of media (Art Directors Club, 2011). The content of the commercial is also limited as it only involves one character. This gives the commercial a sense of mystery as we try to understand how this central character will relate to their environment. In the commercial, the central character is seated and manages to defy gravity. The end result is that the character floats throughout the commercial. The context of this commercial is that everything is possible for the users of this network as the commercial ends with the name of the brand, Movistar. The directors used in this commercial have a history of coming up with such commercials. Their work usually involves very few characters and it is these that are used to convey the message about the product to the consumer. The intention of this commercial is to portray a scenario which is impossible to achieve, in this case, floating above the ground. This makes the viewers’ wonder how this is possible. At the end of this phase, the name of the brand appears on the screen. This creates a link between the brand and the floating character. It shows that the product has limitless capabilities and it can enable them to do a wide range of things that were previously not possible (Plunkett, 2008). All these things can be made possible due to the Movistar 4G networks.  Ã‚  

Investigation and previous work on optical and thermal measurements in Dissertation

Investigation and previous work on optical and thermal measurements in transparent materials - Dissertation Example The optical and thermal measurements of Aluminum are also discussed because a part of this dissertation involves the analysis of Aluminum metal as a reflector for heat dissipation. When light rays hit the boundary of a refractive material, they are split into subrays according to the solid angle caused by the dispersion and the distance traveled by the split rays until they hit the next surface of the material (Wilkie, Tobler, & Purgathofer, 2000). Ray tracing is based on this principle and is used to study optical materials. When radiation falls on the surface of a material, some part of it is reflected, some is absorbed, and some of it is transmitted. These three are the most important optical features of a material and are characterized as the reflectivity (?) of the surface of the material, absorbance (?) of the material, and transmissivity (?) of the material (Bartl & Baranek, 2004). These three optical features of a substance are related to each other as per the equation: ? +? +? = 1. The refractive index of a material is given by the ratio of the speed of light in vacuum to the speed of an electromagnetic wave in the material. The refractive index is an important optical property. ... transitions, multiphoton processes, scattering and defect and impurity absorption, density variations, etc are important loss mechanisms that greatly influence the optical properties of the substance (Tropf, Thomas, & Harris, 1995). Lattice vibrations or atomic motion in the material are responsible for its optical properties, dielectric properties, heat capacity, thermal conductivity and other important thermo-optic properties (Tropf, Thomas, & Harris). The refractive index, an important optical property, is influenced by a number of factors including temperature, stress, and applied field. The study of temperature effects on the refractive index of a material, called thermo-optic properties of the material, is especially important in case of solar concentrators because they are continuously exposed to heat and high temperatures due to exposure to sunlight. Thermal measurements such as measurements of thermal expansion and thermal conductivity of optical materials are thus important for predicting its behaviour. The coefficient of linear thermal expansion, given by ?, is the fractional change in the length with respect to change in temperature (Tropf, Thomas, & Harris, 1995). It is thus defined by the equation: ? (T) = 1/L dL/dT The thermal conductivity of a material, given by ?, is the â€Å"rate of heat flow† through the substance within a specific â€Å"thermal gradient† (Tropf, Thomas, & Harris). Figure 3.1 shows the thermal conductivity of several common optical materials. Fig. 3.1: Thermal conductivity of optical materials (Tropf, Thomas, & Harris, 1995, p. 33.37). Studying the optical and thermal behaviour of optical materials is an important prerequisite in order to utilize them in solar applications. Several methods for carrying out optical and thermal