A Loss Analysis for a 28% Efficient 520X Concentrator Module
A module efficiency loss analysis has been conducted by comparing the efficiency of the module on-sun (28.2% peak) to the efficiency of the bare cell measured in the laboratory (35.5% peak). This analysis suggests that there are two main loss mechanisms in the module: elevated operating temperature and an optical efficiency less than unity. This analysis also suggests that the effects of spectral and intensity non-uniformity have been well controlled
III-V Solar Cells and Concentrator Arrays
Semiconductor heterostructures allow solving the problems of controlling the fundamental parameters of semiconductor devices owing to the possibility of change in the electronic band structure, bandgaps and refractive indices of a material itself during epitaxial growth, as well as effective masses and mobilities of charge carriers in it.
Turkish Political Culture and Civil Society : an Unsettling Coupling?
This paper attempts to analyze Turkish politics in the post-1980 period with a special reference to the relationship among the state elites, political elites and societal actors and its impact on the constitution of civil society in Turkey. After the 1980 military intervention, the political and economic realms of Turkey witnessed a relative degree of liberalization through Uzal's neo-liberal policies. The January 24 economic decisions paved the way for economic liberalization as well as letting new economic and societal actors emerge. These new economic actors were different from the prevailing economic actors which used to enjoy having a considerable amount of opportunity spaces in the economic sphere. Together with the Uzal governments, Islamic segments started to become powerful in both political and economic realms. This paper analyses the chief traits of Turkish politics and economics and their impact upon civil society aftermath the 1980 coup in general, and the relationship and/or interaction among the state elites, political elites and societal actors in particular. The engagements of newly-emerging societal and economic actors into Turkish political scene and the challenge of these actors against the so-called 'Kemalist-Republican' elites are also illustrated in the paper. Moreover, state-Islam interaction, politics-Islam interaction as well as Kemalism-newly-emerging societal and economic actors interaction will be studied with a special emphasis to the post-1980 period. The major argument of the paper is that, in Turkey, both civil society issues and political issues reveal outcomes which are primarily shaped by the nature of the relationship between state elites and political elites in general and by Turkish political culture in particular.