نتایج جستجو برای: series

تعداد نتایج: 350962  

Journal: :International Journal on Recent and Innovation Trends in Computing and Communication 2023

In this paper we shall give description about the extraction of a rapidly decaying remainder from Euler series and telescoping series. Then apply procedure to generalised The new positive term obtained with will converge faster than original We also. introduction such better approximation for

In this paper, we propose a new residual analysis method using Fourier series transform into fuzzy time series model for improving the forecasting performance. This hybrid model takes advantage of the high predictable power of fuzzy time series model and Fourier series transform to fit the estimated residuals into frequency spectra, select the low-frequency terms, filter out high-frequency term...

ژورنال: علوم آب و خاک 2018

In this study, in order to analyze the trends of annual precipitation, the information from 21 synoptic meteorological stations located in the Urmia Lake basin in a 30-year time period (1986-2015) was used. For this purpose, the Sequential Mann-Kendall test was used. The date of sudden change (if exist) in the precipitation time series of each station was identified. Significance of the trend i...

Extended Abstract 1- Introduction Nowadays, forecasting and modeling the rainfall-runoff process is essential for planning and managing water resources. Rainfall-Runoff hydrologic models provide simplified characterizations of the real-world system. A wide range of rainfall-runoff models is currently used by researchers and experts. These models are mainly developed and applied for simulation...

This study was conducted to evaluate the cultural contents and cultural elements represented in Vision (I & II) and Pre-University English (I & II). This study also aimed at determining if there were significant differences between these series in terms of cultural content and cultural element representation. To this end, the two ELT coursebook series were selected and analyzed based on Cortazz...

Let $K$ be a field of characteristic$p>0$, $K[[x]]$, the ring of formal power series over $ K$,$K((x))$, the quotient field of $ K[[x]]$, and $ K(x)$ the fieldof rational functions over $K$. We shall give somecharacterizations of an algebraic function $fin K((x))$ over $K$.Let $L$ be a field of characteristic zero. The power series $finL[[x]]$ is called differentially algebraic, if it satisfies...

Journal: :تحقیقات جغرافیایی 0
مهدی بلواسی دانشگاه تبریز سعید جهانبخش اصل دانشگاه تبریز حمید میرهاشمی دانشگاه تبریز

thunderstorms are climatical phenomena, which sometimes can cause irreparable damage to the ecology. in this study to identify any trends in the frequency of days with thunderstorms in iran, long-term statistics of 33 synoptic stations, from the beginning until 2005 was used. at first by applying nonparametric man-kendall and sen’s estimator methods on four seasonal time series, and one annua...

Journal: :Wind Energy 2022

Realizing carbon neutral energy generation creates the challenge of accurately predicting time-series data for long-term capacity planning and short-term operational decisions. The key challenges adopting data-driven decision-making, specifically predictive analytics, can be attributed to volume velocity. Data poses storage retrieval. velocity processing near real time decisions or building. Th...

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