The self-cleaning technology for solar cell array can Nike Air Max 2012 Canada promote efficiency of electricity produced and protect the solar cell. The methods of dust-removal, such as natural means, mechanical means, self-cleaning nano-film, and electrostatic means are presented in this paper. It is intended to help readers to gain a more comprehensive view on self-cleaning method for solar panels or other optical devices.
Previous work of the authors contained a mistaken assessment of the cylindrical shell finite element of Bogner, Fox and Schmit. The present note gives a corrected assessment.
An algorithm is presented which solves bounded quadratic optimization problems with n variables and one linear constraint in at most O(n) steps. The algorithm is based Air Max Thea Womens
on a parametric approach combined with well-known ideas for constructing efficient algorithms. It improves an O(n log n) algorithm which has been developed for a more restricted case of the problem.
We introduce and study the quotient structure and an nn-ary hyperintegral domain of a Krasner (m,n)(m,n)-hyperring, proving some results regarding them. Also, we introduce some important hyperideals such as Jacobson radical, nn-ary prime and primary hyperideals, nilradical, and nn-ary multiplicative subsets of Krasner (m,n)(m,n)-hyperrings. Finally we investigate the links between these notions.