Volume 31 (2020)
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Volume 26 (2015)
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Volume 16 (2005)
Volume 15 (2004)
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Volume 3 (1992)
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Volume 1 (1989)
1. Palynostratigraphy, Palaeogeography and Source Rock Evaluation of the Nayband Formation at the Parvadeh area, Central Iran, Iran

M. Ghavidel-Syooki; M. Yousefi; D. Mohnhoff

Volume 26, Issue 3 , Summer 2015, , Pages 241-263

Abstract
  The Nayband Formation was measured and sampled in Parvadeh area, southern Tabas city. In this area, this formation has a thickness of 1410 m, dividing into four members, namely Gelkan, Bidestan, Howz-e-sheikh and Howz-e-khan. A total 573 samples were treated for Palynological analysis, and only 120 samples ...  Read More

2. A Projected Alternating Least square Approach for Computation of Nonnegative Matrix Factorization

M. Rezghi; M. Yousefi

Volume 26, Issue 3 , Summer 2015, , Pages 273-279

Abstract
  Nonnegative matrix factorization (NMF) is a common method in data mining that have been used in different applications as a dimension reduction, classification or clustering method. Methods in alternating least square (ALS) approach usually used to solve this non-convex minimization problem.  At ...  Read More