نتایج جستجو برای: quadratic and cubic root mean square of error
تعداد نتایج: 24095786 فیلتر نتایج به سال:
abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...
the present study aimed to investigate representation of discourse markers and metadiscourse markers in conversations and readings of general elt coursebook series used in the language centers of iran. to this aim, four elt coursebooks popularly taught in language centers of this country were analyzed based on fung and carter’s (2007) framework regarding discourse markers and hyland’s (2005) fr...
A Back Propagation Artificial Neural Network (BPANN) is a well-known learning algorithmpredicated on a gradient descent method that minimizes the square error involving the networkoutput and the goal of output values. In this study, 261 GPS/Leveling and 8869 gravity intensityvalues of Iran were selected, then the geoid with three methods “ellipsoidal stokes integral”,“BPANN”, and “collocation” ...
Leaf area estimation is of fundamental importance to evaluate growth, development, and propagation plants. This work aimed adjust identify regression models estimate leaf Erythrina velutina from linear dimensions the central leaflet leaves. Two hundred simple leaves were collected E. mother plants in forest fragments municipality Mossoró, Rio Grande do Norte state, Northeast Brazil. The equatio...
We study p-adic root separation for quadratic and cubic polynomials with integer coefficients. The quadratic and reducible cubic polynomials are completely understood, while in the irreducible cubic case, we give a family of polynomials with the bound which is the best currently known.
this study investigates the strategies native english and persian speakers employ for expressing gratitude in different situations. the strategies of persian efl learners are also compared with english strategies in order to find the differences that may exist between these two languages. social status and size of imposition of the favor are social variables which are investigated in detail for...
cohesion is an indispensable linguistic feature in discourse analysis. lexicald such a differe cohesion and conjunction in particular as two crucial elements to textual cohesion and comprehension has been the focus of a wide range of studies up to now. yet the relationship between the open register and cohesive devices has not been thoroughly investigated in discourse studies. this study concen...
Water resources simulation is efficient tools to evaluate different options and decision in development conditions. Supply of water demand with high reliability need to exact and perfect planning. So, dam behavior recognition and it operation is from essentials of water resources systems management and future planning. In this study, the software VENSIM the method based on the dynamics of the s...
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