Are there any differences between designation of 50 AND 400 Hertz passive filter?

More Emad Roshandel's questions See All

Can medicinal plants really play an inherent rule in the COVID-19 tackle?

Numerous scientific reports cited plant extracts with potential antiviral activity and even anti-COVID-19? Why these findings are neglected? I remember very well the warning released by the WHO to...

17 February 2021 2,141 9 View

When i made an Autotune on GC-MS to check the apparatus, it's not continue the process and there a problem in Mass Filter Electronics?

Dear Connections, I hope you are doing well when I made an Autotune on GC-MS to check the apparatus, it does not continue the process, and there a problem in the mass Filter Electronics as shown...

10 October 2020 8,131 3 View

Does anyone know what is an appropriate statistical analysis of drug release studies?

I am measuring the drug release of a few drug-eluting implants in dissolution medium in different time intervals. All the measurements are in triplicates. Would ANOVA or TTEST is an appropriate...

20 September 2020 8,183 5 View

What is the proper solvent which used in liquid detergent to make it soluble?

Good afternoon everyone, I hope you are doing well I had several samples of liquid detergent I wanna to soluble it with a solvent. I tried with both of ( water, Ethyl alc., Parrafin Oil, DPG,...

05 August 2020 8,664 3 View

What is the best parameters in GC-MS for DB-WAX (60m0.250mm0.25microm) in the fragrances field?

Hi everyone, I hope you are well and stay safe. I am an operator for GC-MS instrumental and my company replace the column with another new one which called DB-WAX (60m*0.250mm*0.25microm). A...

14 June 2020 4,440 3 View

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Under the conditions of the Corona virus, most countries tended to use the method of distance education, using various methods, including: e-learning platforms, and social media. It is true that...

10 April 2020 7,181 3 View

IS That okay if i injection ETOH to GC-MS?

I wanna to injection sample which contain only ethyl alcohol is that okay or not?

06 April 2020 9,164 4 View

Could car engine oil be an apropriate replace for freeze dryer pump oil?

We just got a new freeze dryer (Biobase) but unfortunately the machine arrived without pump oil, so could any machine/ car oil be used as a substitute? if not could you pls suggest any other type...

06 February 2020 167 3 View

I need to contact some "Full professors" interested in antibacterial potential of medicinal plants, could you please suggest me names and emails ?

I am an associate professor, I am suffering from a lack of expert persons under the title: "Full professor" in the field of antibacterial potential of medicinal plants. I should be most grateful...

28 December 2019 9,919 5 View

What's the effects of the wet season and dry season on biological soil crusts specially algae (Cyanobacteria and green algae)?

I work the research about stabilization of soil by Biological soil crust especially algae (Cyanobacteria and green algae) Could anyone please help me about this topic soil stabilization using...

17 December 2019 8,682 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 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

Can I use TCA instead of TFA for protein analyis in RP-HPLC?

I am trying to analyze lipase using the reverse phase-HPLC C18 column. In the literature, 0.1 % TFA was and 60% ACN was used. Can I use TCA in place of TFA? If any other methods are available to...

25 February 2021 2,388 3 View

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Sample size determination for non-parametric tests?

How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...

24 February 2021 166 6 View

What is the error of the Txy diagram?

Hi, I know the attached Txy diagram has an error but can't figure it out. Could you please look at the diagrams and explain it to me?

23 February 2021 4,239 1 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Venkataraman Chayapathy

LC filter can be used. Cheapest core may be a strong card board the thickness of which is to be calculated depending on the value of the inductor which you are using.

Emad Roshandel

"DESIGN OF A STATIC FREQUENCY CONVERTER SUITABLE FOR AIRCRAFT POWER SYSTEMS" is one of the best references in this concepts. It has been published by AHM AD RAHAL as an M.Sc. thesis in the Dublin City University.