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[en] This guide presents an overview of the process for successfully planning for and installing solar technology on a federal site. It is specifically targeted to managers of federal buildings and sites, contracting officers, energy and sustainability officers, and regional procurement managers. The solar project process is outlined in a concise, easy-to-understand, step-by-step format. Information includes a brief overview of legislation and executive orders related to renewable energy and the compelling reasons for implementing a solar project on a federal site. It also includes how to assess a facility to identify the best solar installation site, project recommendations and considerations to help avoid unforeseen issues, and guidance on financing and contracting options. Case studies with descriptions of successful solar deployments across multiple agencies are presented. In addition, detailed information and sample documents for specific tasks are referenced with Web links or included in the appendixes. The guide concentrates on distributed solar generation and not large, centralized solar energy generation.
[en] Experimental investigations of long-range ordering kinetics in ternary intermetallic systems with L12 superstructure were carried out. Two groups of compounds: Ni75Al25-xFex (0≤x≤15) and Pt75Co25-xFex (0≤x≤18.8), showing opposite relationships between the stability of L12 superstructure and concentration of Fe, were examined by means of isochronal residual resistometry (REST). Analysis with the Schulze-Luecke formalism enabled separate estimation vacancy formation EF and migration EM energies being components of the overall activation energy EA for 'order-order' kinetics. It was found out that the destabilization of L12 superstructure by Fe in Ni75Al25-xFex is accompanied by a decrease of vacancy formation energy, vacancy migration energy left unaffected whereas in case of Pt75Co25-xFex tentative results show that the admixture of Fe affects both EF and EM
[en] Experimental research of 'order-order' kinetics in binary intermetallics showing highly stable superstructures revealed that specific features of 'order-order' relaxations are attributed to the type of superstructure. Corresponding simulation studies elucidated specific atomistic mechanisms of the processes. It has been shown that two time scales revealed experimentally in 'order-order' relaxations in L12 and L10-ordered systems follow from an interplay between ordering/disordering and the easy diffusion of antisites within one sublattice. In triple-defect B2-ordered intermetallics, strict correlation between ordering/disordering and vacancy elimination/formation dramatically slows down the process despite very high vacancy concentration