This paper presents a theoretical derivation and computer simulation of an optimal speed controller for a brushless dc motor using feedback from a linear model running in parallel with the inverter-fed model. The intent of the feedback from the linear model is to eliminate torque ripples from the inverter drive. A nonlinear model of such a motor, transformed into a linear model by a local diphe...

Tree models are broadly used in multimedia applications, but it is a challenge task to deform trees with plenty of branches. We propose a novel method to deform the tree model interactively using cages based on trees' property, and we design a framework to control the hierarchy deformation of trees. The bounding box of the trunk is used as the global control cage, while the bounding boxes of br...

introduction rainfall is considered as one of the most important factures in water cycle. prediction of monthly rainfall is important for many purposes such as estimating torrent, drought, run-off, sediment, irrigation programming and also management of drainage basins. rainfall prediction in each area is mediated by punctual data measured as humidity, temperature, wind speed and etc. as iran i...

Generalized linear models with group effects are commonly used in scientific studies. However, there appear to be no results for selecting optimal designs. In this paper, we identify the structure of locally optimal designs, provide a general strategy to determine the design points and the corresponding weights for optimal designs, and present theoretical results for the special case of D-optim...

Orman ağacı ıslah çalışmalarında, uzun süre gözlemlenen genetik testler ile programları için parametreler tahmin edilmektedir. Söz konusu parametrelerin tahminleri programını etkileyeceğinden kullanılacak doğrusal karma modelin seçimi büyük önem taşımaktadır. Kullanılan modellerde tahmin, genellikle artık (residual) veya kısıtlı maksimum olabilirlik (REML) yöntemi kullanılarak elde edilir. Fark...

Let 1 s1<s2< · · ·<sk n/2 be given integers. An undirected even-valent circulant graph, C12k n , has n vertices 0, 1, 2, . . ., n− 1, and for each si (1 i k) and j (0 j n− 1) there is an edge between j and j + si (mod n). Let T (C12k n ) stand for the number of spanning trees of C12k n . For this special class of graphs, a general and most recent result, which is obtained in [Y.P. Zhang, X.Yong...