Is there any reason for electrical conductivity of semiconductor to increase with passage of time?

I am observing an increase in electrical conductivity of my semiconducting material with time, i.e I had tested my samples and initially it gave some value and when I retested the same sample with...

04 October 2020 8,498 4 View

What could be the reason of appearance of empty patches while spreading the PVDF-DMAc solution to prepare the membrane?

I am preparing PVDF membranes with DMAc. PVDF was dissolved in DMAc to get 15% w/w solution. The dissolution was done at 45 C for 24 h. After dissolving, the solution was kept without stirring for...

18 October 2019 5,606 3 View

What are the mathematical problem-solving skills in literature?

I don't find mathematical problem-solving skills which i can call them my dependent variable. can you please suggest me the mathematical problem-solving skills that work as dependent variable. My...

02 April 2019 2,214 13 View

I have designed a meta material and now we are working on plasmon induced transparency. I want explanation about bright mode and dark mode ?

I need to understand the concept of bright mode and dark mode completely. I know that by the destructive interference of bright and dark modes we achieve PIT but what is exactly bright and dark mode?

10 January 2019 1,505 3 View

Why grid active power P comes -ive and how i can overcome it?

i am working on a grid connected hybrid system (SYN.gen + DFIG wind turbine). right now i am facing two problem 1. Grid Active power is coming negative 2. i wan to make DFIG's reactive power...

03 January 2019 1,636 3 View

What is the Acceptance Rate of ICMLC 2019?

I wanted to know the Acceptance Rate of the International Conference on Machine Learning and Computing 2019. Can anybody please help?

19 December 2018 967 1 View

Why Breakfast is considered the most important meal of the day?

Eating a nutritious breakfast (whole grains, fruits, vegetables, and a lean protein such as eggs) maintains blood sugar levels, prevents binge eating, and sets the tone for a day of healthy...

15 November 2018 6,951 6 View

Where can i find a standardized questionnaire on malnutrition in children?

malnutrition in school going children by visiting only schools and covering obesity under malnutrition as well

26 March 2018 5,090 7 View

Is there any mathematical formula between reflectance and absorbance coefficient or between reflectance and transmissiance cooeffecient T%

I am working on band gap calculation using UV vis spectroscopy of ZnO nanorods that i grown on gold coated glass . As it is non transmittance so it has 100% absorbance and 0% transmittance. the...

06 December 2016 118 7 View

No title

08 August 2016 8,089 3 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View

How to find natural frequency of a bridge from vehicle induced vibrations?

i have frequencies of bridge that are effected by mass of vehicle. the problem is when any vehicle pass the bridge it would add the its mass to the bridge mass ultimately mass of the bridge will...

22 February 2021 10,004 3 View

The Role of Town Planners in CAV Use?

Colleagues and I are about to begin a project investigating the role of town planners and local authorities in establishing the introduction of connected and autonomous vehicles (CAVs). What...

21 February 2021 2,247 3 View

How to Measure Consumer Willingness To Change from petroleum-fueled vehicle to electric vehicle?

I wanted to calculate the probability of one consumer shifting from using a petroleum-fueled vehicle to an electric vehicle. Since my background is in engineering I do not know much about how to...

15 February 2021 9,190 5 View

How to do Matrix inversion using FPGA ?

I need to implement matrix inversion in hardware. The size of the matrix can be anywhere from 50 *50 to 8*8. Are ready-made standard codes available or inbuilt modules available with FPGA...

15 February 2021 4,006 3 View

How to extract the yearly cash flow data (not time-series) from HomerPro in Excel? Also how to extract the monthly average electric production data?

I want to plot the monthly average electric production data and cash flow data in another software to get a more clear graph. For this, I need to extract the monthly or yearly data and not the...

11 February 2021 2,740 2 View

How to get actual or true SoC while predicting SoC for Batteries using Data Driven Approaches?

I have seen it in multiple research articles that authors use certain approaches to predict electric vehicle battery's state of charge(SoC) and then they compare it with battery's true SoC. So I...

11 February 2021 9,070 3 View

How can I prevent my switching power supply from sudden voltage increases ?

Hi Everybody, I'm currently using a 3kW AC/DC converter which gave 48VDC output(Switch mode power supply). The device is capable to deliver up to 62.5A current to the load. My application is a...

08 February 2021 7,642 4 View

Any open-access dataset for battery systems from the field available?

Battery dataset is more and more critical for battery research. Although some dataset from the lab test is available online, rare information about the dataset from the battery systems in electric...

05 February 2021 8,372 1 View