Posts

Arduino simulation - Capacitance meter

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This video tutorial illustrates the Arduino based simulation of capacitance meter / capacitance measurement of capacitors & supercapacitors with Tinkercad simulation.   Principle for this measurement is explained in the following page: https://www.enote.page/2022/01/capacitor-charging-discharging-time.html   Estimation of capacitance of capacitors & supercapacitors by simulating charging & discharging is explained in the following page: https://www.enote.page/2021/06/capacitor-simulation.html   Components required Name Number Component C1 1 100 nF to 10 mF Capacitor R1 1 10 kΩ Resistor U1 1 Arduino Uno R3 board Meter2 1 Voltage meter R2 1 220 Ω Resistor     Increase the resistance value from 10K, if the charging time is too short. Decrease the resi

Stock Option Chain Data in Excel Sheet

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Simplified Excel sheet for Stock Option traders to fetch and analyze NSE Stock Option Chain Data for both Calls and Puts. This Excel sheet fetches the live NSE Stock Option Chain data such as OI and Price at different strike prices specifically few Strike Price ranges near to ATM in Excel sheet.               This is coded in VBA and can fetch the following data at a given Strike Price, for both Calls (CE) and Puts (PE) and at different Expiry Dates. > Open Interest (OI) > Change in Open Interest (in %), > Last Traded Price for NSE Stock option (in INR) > Change in Last Traded Price (%)   It narrows down and fetches few selective Strike Price ranges only at Out of Money (OTM) near to ATM (At the Money) and not fetches from deep far Out of Money Strike Price data. So, it gives a simplified view on OI and Price changes.   How to use? 1. Select the Stock Symbol. 2. Then Select the Expiry Date an

VESTA Tutorial: Simulation of XRD patterns – Matrix transformation of {h k l} planes Miller indices

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This VESTA tutorial demonstrates the following: 1. How to download and analyze .cif (Crystallographic Information File) from Open Crystallographic Database using VESTA program? 2. How to simulate X-ray diffraction patterns in VESTA from the crystal unit cell volume? 3. How to interpret and view the lattice planes, d-spacing in a 3-dimensional way? 4. How to perform matrix transformation correctly, in {hkl} Miller indices planes? 5. Matrix transformation by using simple matrix multiplication followed by the location of the new Miller plane after the transformation.   6. Identification of Miller {hkl} planes from crystal dimensions and XRD patterns. 7. Correlates the unit cell dimensions, d-spacing and 2-theta (2θ) values.

Python code to Laptop Battery Life Saver - Battery Status Check

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Coded a light-weight Python program (600 KB), 'Battery Life Saver' to extend the life span of laptop batteries with GUI (Graphical User Interfae)   Using a Laptop Battery continuously by overcharging above 90% or by below 15%, reduces its life span.   This light-weight .exe program, Battery Life Saver will alarm, on excess charging or discharging.     Check this page for downloading this program Download Battery Life Saver Program     Battery percentage can be checked by ‘psutil’ and it can retrieve battery information. psutil (process and system utilities) is a cross-platform library for retrieving information on running processes and system utilization (CPU, memory, disks, network, sensors) in Python.   Installation of psutil Windows in Command Prompt as Administrator:   pip install psutil   For Linux distributions: sudo apt-get install gcc python3-dev sudo pip3 install psutil   Code   import psutil   # Get

Automating References or Bibliography for Research Paper, Book, PhD Thesis

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Zotero Tutorial - Automating References / Bibliography for Writing Research Paper, Book and PhD Thesis in MS Word. For academicians, researchers and Ph.D. scholars, inserting & editing the References or  Bibliography manually to a specific Journal Reference style is tedious & time consuming, while writing a research paper or a book or a PhD thesis or manuscripts with MS Word processor. With Zotero (freeware) in Word this boring and cumbersome referencing  process can be automated easily and quickly. This video tutorial demonstrates how to insert / modify the references fetched from webpages in word using Zotero.

Full Width at Half Maximum (FWHM) & Quadratic equation

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Full width at half maximum (FWHM) for a curve is used in many scientific experimental data analyses. For instance, in X–ray diffraction analysis of crystal data, it is used to find the grain size from the curve. FWHM is the width of the curve or simply the difference in the corresponding two ‘x’ data values at y max /2. y max refers the highest value of ‘y’ or ‘y’ value for the maximum peak height.   Example Set of ‘x’ and ‘y’ data and the corresponding curve is given below: (View this Page for back reference.)     x      y 0.0    0.000 0.1    0.146 0.2    0.284 0.3    0.414 0.4    0.536 0.5    0.650 0.6    0.756 0.7    0.854 0.8    0.944 0.9    1.026 1.0    1.100 1.1    1.166 1.2    1.224 1.3    1.274 1.4    1.316 1.5    1.350 1.6    1.376 1.7    1.394 1.8    1.404 1.9    1.406 2.0    1.400 2.1    1.386 2.2    1.364 2.3    1.334 2.4    1.296 2.5    1.250 2.6    1.196 2.7    1.134 2.8    1.064 2.9

Rietveld refinement of crystal data by FullProf suite computer program

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This video tutorial demonstrates the first basics of the Rietveld refinement using FullProf Suite computer program (freeware), for crystal structures based on crystallographic information file (.cif) and simulations for X-ray diffraction patterns.   YouTube Link: https://www.youtube.com/watch?v=1lMi_uI9R58   By, Dr. M Kanagasabapathy Assistant Professor Department of Chemistry Rajapalayam Rajus’ College Madurai Kamaraj University Rajapalayam (TN) India  

Haircut (%) for Mutual Funds, Equities, Gold Bonds, Securities

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What is Haircut in stock market? Haircut is the amount of margin money deducted while pledging the Equites/ Mutual Funds / Bonds for trading. A haircut value of 13% means that, if a share worth of Rs 100 is pledged for trading, then Rs. 13 will be deducted and Rs. 87 will be given as collateral margin for trading. It is based on previous closing price.   This program is used to identify the real worth or money value of an equity / share / sovereign Gold Bonds (SGB) at the selected date.   This program fetches the historical Haircut data (%) and Price of Equities listed in NSE, India at the specified date.   Enter the Date (in the format: dd-mm-yyyy) to get Haircut data for equities listed in NSE. It lists the haircut value (%) and the respective price of the equity at the given date.   Enter the symbol for equity listed in NSE. For example, Infosys should be entered as INFY.   Note: If the date falls on holiday, no results will be displaye