This article introduces a general framework of multi-granulation fuzzy probabilistic roughsets (MG-FPRSs) models in multi-granulation fuzzy probabilistic approximation space over twouniverses. Four types of MG-FPRSs are established, by the four different conditional probabilitiesof fuzzy event. For different constraints on parameters, we obtain four kinds of each type MG-FPRSs...

There has been an increasing attention to the effect of hull roughness on ship resistance and powering. In conventional studies, surfaces have treated as uniform rough while real ships' hulls are exposed heterogeneous fouling accumulation. The work described here presents experimental investigation into resistance. A series towing tests were conducted using a model Wigley with various condition...

‎in this paper‎, ‎we study the $l^p$ ($1

the objective of this study was to examine the effects of the fluidized-bed drying me-thod on the final quality of two varieties of iranian rice, medium- and long grain. the re-sults were compared to that of paddy drying using a traditional method. rough rice was treated in the fluidized bed drier at 140ºc for 2 minutes. similar samples were dried for 8-10 hrs by the traditional method. dried s...

in this paper, various elementary properties of vague rings are obtained. furthermore, the concepts of vague subring, vague ideal, vague prime ideal and vague maximal ideal are introduced, and the validity of some relevant classical results in these settings are investigated.

notions of strongly regular, regular and left(right) regular $gamma$−semigroupsare introduced. equivalent conditions are obtained through fuzzy notion for a$gamma$−semigroup to be either strongly regular or regular or left regular.

Fuzzy rough n-ary subhypergroups are introduced and characterized.

Free of tool wear, residual stress, and surface damage, electrochemistry plays a significant role in precision machining. We report here semiconductor polishing technique based on electrochemically induced chemical etching, which the concentration distribution electrogenerated etchant between electrode workpiece can be precisely controlled by pulse frequency potential applied to electrode. A th...