نتایج جستجو برای: based on principal component analysis method
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this study was carried out to investigate the effects of integrative vs. instrumental motivation, learning strategy use and gender on iranian efl learners. to this end, 120 efl learners both male and female majoring in english language and literature at shiraz university participated in the study. in order to conduct this study three instruments were used: oxford quick placement test, motivatio...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
spectral decomposition of time series has a significant role in seismic data processing and interpretation. since the earth acts as a low-pass filter, it changes frequency content of passing seismic waves. conventional representing methods of signals in time domain and frequency domain cannot show time and frequency information simultaneously. time-frequency transforms upgraded spectral decompo...
در این پژوهش منشاء خزندگان را مورد بررسی قرار داده، خانواده های مارها را در ایران معرفی نموده و ویژگی های آنها را ذکر کرده ایم، خانواده colubridae را از نظر فیلوژنی، رده بندی و همچنین جنس های آن را، مرور کرده ایم. جنس eirenis jan, 1868 که هدف اصلی پژوهش حاضر است در ایران دارای هشت گونه می باشد، e. collaris (menetries, 1832) ، e. coronella (schlegel, 1837) ،e.decemlineatus(dumeril,bibron and dum...
We have divided rebuilding food systems into two phases, one of which is to maximize productivity in a way that maximizes sustainability and economic benefits. Another minimize hunger insecurity, with regard equity. Firstly, we use Euclidean Metri Complete Connection Method for cluster analysis according the production efficiency structure various foods. Then countries are classified different ...
Principal component analysis (PCA) has been applied to analyze random fields in various scientific disciplines. However, the explainability of PCA remains elusive unless strong domain-specific knowledge is available. This paper provides a theoretical framework that builds duality between eigenmodes field and eigenstates Schr\"odinger equation. Based on we propose algorithm replace expensive sol...
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