How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View

Why according to FRAC (fungicide resistance action committee) phenylamide fungicides application interval should not exceed 14 days?

Why according to FRAC (fungicide resistance action committee) phenylamide fungicides application interval should not exceed 14 days. Anyone know reason behind this strategy

18 January 2021 1,166 3 View

What are the political factors affecting curriculum design at the primary level in Pakistan?

This Topic I chose for my Thesis in Final Year of my Master's. I am in process of it's completion but need more suggestions and comments for the Topic to elaborate.

14 December 2020 356 3 View

How to calculate the replacement cost of battery?

As battery needs to be replaced after the specific charge and discharge cycles mentioned in the datasheet. If we have the time series data of battery power and energy capacity, then how can we...

01 December 2020 3,433 3 View

How to coat oleic acid on fe3o4 nanoparticles and yo confirm visually?

I made iron oxide nanoparticles via co-precipitation method and obtained a brown colour slurry with neutral pH and I did ex situ coating of oleic acid on nanoparticles and washed it with ethanol...

10 November 2020 5,911 4 View

Can anyone please elaborate the relationship between charge and discharge cycles and battery lifetime?

I am designing the optimal HESS capacity for the renewable system. I have to select the cutoff frequency of low pass filter to divide the low and high-frequency components. charge and discharge...

05 November 2020 8,397 3 View

How to select the frequency range in MATLAB Wavelet toolbox?

I have a continuous, time-domain noisy signal and want to decompose into low-frequency (LF) and high-frequency(HF) components using Wavelet Toolbox. But, I am unable to select the frequency range....

29 October 2020 5,219 5 View

How to confirm coating of oleic acid without using any XRD,SEM,FTIR???

I made iron oxide nanoparticles via co-precipitation method and obtained a brown colour slurry with neutral pH and I did ex situ coating of oleic acid on nanoparticles and washed it with ethanol...

28 October 2020 1,802 3 View

Can you please help me to explain, why this attached SEM images show different effect of independent variable to dependent variables of same data?

Both Fig 1 and 2 describe aboveground biomass (AGB) and conducted SEM. However, the results were inconsistent. In fig.1, Nitrogen has significantly negative effect on AGB while in fig. 2, it was...

07 May 2020 6,280 3 View

How to prepare stock solution of melatonin to use for electrochemical detection?Which solvent is more suitable?

I tried with DI water but it cannot fully dissolve melatonin.Some people suggested to use little ethanol. But i have a confusion that if i use ethanol then it may have interference...

25 April 2020 2,612 3 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

Online surveys for social sciences researchs: what are your opinions about this tool and how can we improve the research design to incorporate online?

Good morning everyone, Due to the pandemic, I conducted several online surveys. It is quite agile, not at all expensive, but there are several problems: the sample's representativeness and its...

21 February 2021 7,457 3 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Hi, can a variable in a questionnaire be measured with a series of questions or it has to one question for one variable?

I am doing research on the impact of competitive bidding on project success and would like to use SEM. Project success shall be: cost overage, completion time, quality of works and variation...

13 February 2021 4,413 6 View

Why non-specific band appear on T-ARMS PCR?

Hi everyone. We want to know how can I remove the non-specific band amplification on this variant. Although the amplification of non-specific band is not as intense as the band that we want, but...

09 February 2021 588 2 View

What is your opinion regarding opening of school? Now students are supposed to join school. Do you think that decision is in the interest of society ?

From long Pendamic now government is opening school and colleges on for off line classes. What do you think that this decision is fruitful to the students and society too?

08 February 2021 3,068 6 View

Fractional derivative users, are you on the same page with me on the validity of the fractional order parameter, say alpha?

Taking a fractional ODE problem as an example. It has come to my attention that if the fractional order parameter is in the interval (0,1], many only presents results for alpha=0.9, 0.99. I saw...

08 February 2021 9,671 3 View

Looking for a scale to measure attitudes towards violence against women and the factors that impact attitudes in South Africa?

I am interested in doing research on attitudes towards violence against women and the factors that impact attitudes in South Africa? Does anyone know which attitude scale I can use to measure...

06 February 2021 3,076 1 View