This study presents a MATLAB-based graphical approach for analysing the transient current response of a series resistor-inductor (RL) circuit. It focuses on decomposing the total current into natural-response and forced-response components under specified circuit parameters. Resi...
Open access
Research Article10.9734/jerr/2026/v28i71945
This paper refers to as various results of regression calculators on the website among some of the results are either too complicated or too concise, so that the author summarized those results data from SPSS system of EXCEL software and regression calculators, during found it wa...
Open access
Research Article10.9734/jerr/2025/v27i101672
This paper firstly explains the theory of regression analysis - model, least squares method, coefficient of determination, model assumptions, significance test, etc., and how to calculate through actual data to carry out what these essential nouns –such as R2 , SSR, SSE, SST, F,...
Open access
Research Article10.9734/jerr/2025/v27i81602
Transformer insulating oil plays an extremely important role in power transformers and is used for insulation, arc suppression, cooling and other purposes. However, its other focus is on dissolved gases analysis in the oil to monitor internal operating conditions, which is the re...
Open access
Research Article10.9734/jerr/2024/v26i51142
In this article, begins with the motivation for compiling, literature review, and normal distribution theory and characteristics with a shallow example to explain. Design Method: Making an approximately qualitative normal distribution with EXCEL software. First, the sample group...
Open access
Research Article10.9734/jerr/2023/v25i7936
This article focuses on the monitoring and control of the moisture content from the transformer insulating oil. When its moisture content exceeds the standard value, it will endanger the normal operation of the equipment and cause accidents. Research on how the moisture content p...
Open access
Research Article10.9734/jerr/2023/v24i8837
Design Method: In this paper, the program integrates those diagnostic methods from the Big data, the ANSI/IEEE C57.104 specification, and the Key gas to develop a kind of diagnostic method in power transformer. Their main diagnostic element is the insulating oil dissolved gas, wh...
Open access
Research Article10.9734/jerr/2022/v22i717549
Design Method: The feeder construction type adopts π－type (nominal π) transmission mode. The total feeder impedance value makes up of feeder impedance and load impedance, and then the feeder impedance value is derived from the hyperbolic function of mathematical formula, and the...
Open access
Research Article10.9734/ajrcos/2021/v12i430301
The purpose of this article is to explore and improve the effect of Bipolar Junction Transistor amplifier base-emitter on temperature changes. The prelude starts with Shockley's theory and its formula calculation. Research motivation, literature data and book principles cooperate...
Open access
Research Article10.9734/ajrcos/2021/v12i130274
The aim of this article describes the program of computerized how to calculate the feeder fault current in a distribution substation. This article adopts Thevenin theory as the basis of calculation, and narrates them in two ways: the artificial and the computerized algorithm. It...
Open access
Research Article10.9734/ajrcos/2021/v10i430247
The paper described the least square regression line method has been improved as a novel method for tendency discrimination on future stock price. A new method is established, which is obtained from one dataset of known strain variables. The result is been calculated from 10 stra...
Open access
Research Article10.9734/ajrcos/2021/v7i430186
The short circuit current of the equipment must be carefully calculated. If it is not effective to isolate the fault point, while the system is abnormal. That will leads to prolonged fault time and the instability of power system. The calculation process is very so complicated th...
Open access
Research Article10.9734/ajrcos/2020/v6i130150
Aims: to avoid improper critical clearing time values due to clerical errors during the artificial calculation process, so that takes advantage of MATLAB application software to compile with those equations such as power angle, swing equation, equal area criterions, etc. to calcu...
Open access
Research Article10.9734/ajrcos/2020/v5i230132