Ms Ann Etohan Ogbemudia

Tissue distribution model and pharmacokinetics of nuciferine based on UPLC-MS/MS and BP-ANN.

Nuciferine has shown remarkable biological activities and been considered as a promising drug. In this study, a sensitive and selective ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for determination of nuciferine in tissue and plasma. An electrospray ionization source was applied and operated in positive ion mode; multiple reac...

Land-cover classification using SAR and MS image with ANN classifiers

ABSTARCT: In this work, gray-level co-occurrence matrices (GLCM) have been used to quantitatively evaluate statistical textural parameters for a SAR image and to generate a filtered image to feed to ANNs for classification for land cover. Prior to performing the textural analysis, an adaptive filter was applied to reduce the effect of radar-system-generated coherent speckle to produces an image...

Ann Harrison

پیش‌بینی دوران رکود و رونق در بازار اوراق بهادار تهران با استفاده از مدل‌های MS و NSGA-ANN

بورس اوراق بهادار یکی از ابزارهای مالی کشورها در کل دنیا محسوب می‌شود. وقوع رکود در این بازار می­تواند اثرات مهمی از جمله کاهش نقدینگی، کاهش سودآوری شرکت‌های پذیرفته شده در بورس و همچنین کاهش رشد اقتصادی را در پی داشته باشد. در این مقاله به دنبال استخراج و پیش‌بینی سیکل‌های زمانی در بورس اوراق بهادار هستیم. در ابتدا با استفاده از شاخص کل بورس و بهره‌گیری از مدل MSI(3)AR(2) سه سیکل زمانی رکود، ر...

ANN in High Dimensions

1.1 Hypercube and Hamming distance Definition 1.1 The set of points Hd = {0, 1} is the d-dimensional hypercube. A point p = (p1, . . . , pd) ∈ Hd can be interpreted, naturally, as a binary string p1p2 . . . pd. The Hamming distance dH(p, q) between p, q ∈ Hd, is the number of coordinates where p and q disagree. It is easy to verify that the Hamming distance comply with the triangle inequality, ...