Why is Statement of Problem one of the most challenging part of academic research? Why do supervisors pay more attention to it instead of methodology?

Some MSc and Ph.D. supervisors are having a lot of issues with understanding the Problem Statement of their students' research works. Sometimes, it leads to complete rejection of the whole...

04 January 2021 3,574 6 View

No title

mushrooms play a vital role in human life used for food, medicine, and chemical industries, many edible mushroom-like morels can not be grown by a human, and this type of mushrooms are called...

18 October 2020 1,457 12 View

Why All Monocotyledonous Plants Under Go Hypogeal Germination and Dicotyledonous Plants Under Go Both Epigeal and Hypogeal Germination?

Based on the Behavior of The Cotyledons, Germination is of two Types: Epigeal and Hypogeal and all Monocotyledonous Plants Under Go Hypogeal Germination and Dicotyledonous Plants Under Go Both...

22 September 2020 2,611 4 View

Do you think using flipped classroom will have impact on students' learning of biology?

Biology has many concepts which needs proper illustration, explanation and practicals. Flipped classroom involves using online tools for pre-class interaction between the learner and the subject...

09 August 2020 550 13 View

How do you control the bandwidth and transmission zeros of a filtering antenna?

I designed a rectangular waveguide filtering antenna but finding it difficult to control the bandwidth and transmission zeros. Your professional advice will be highly appreciated

28 July 2020 5,821 2 View

Could you please recommend me any research topic on Computer Based Test?

I am gathering data on the subject, after I invigilated the just recent ended Unified Tertiary Matriculation Examinations, I felt the need to write a paper on the examinations and how they might...

12 May 2019 8,946 1 View

How do I avoid impurities from my SEC purification?

Hello everyone, so I expressed this protein and I am trying to further purify using SEC and still having the impurities in the fraction I expected to have the protein. How do I eliminate these. I...

27 April 2019 8,076 3 View

Isolation enhancement of two Vivaldi antennas?

I design a 2x2 Vivaldi MIMO antenna for 5G application the S11 and other properties are good but the isolation is at -11dB i tried to use metamaterials in order to increase the isolation but it...

31 December 2018 6,732 3 View

Frequency reconfigurable antenna?

Am worrking on reconfigurable antenna my question is can i use metamaterials to reconfigure my antenna instead of using pin diodes or metal strip?

05 November 2018 302 16 View

How do i prepare water saturated phenol:chloroform mixture (5:1)?

I am doing RNA, DNA and protein extraction from the same sample and my protocol recommends this water saturated phenol:chloroform mixture. I am not not very versed with how to go about with the...

29 April 2018 2,063 7 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Does the circuit modeling for planar monopole antennas using Foster canonical forms give good approximation?

Hi researchers, I am searching for some accurate way to do the circuit modeling of planar CPW-fed monopole antennas. I have gone through the literature where mostly circuit modeling is done using...

28 February 2021 7,016 1 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

No title

25 February 2021 5,713 1 View

What is the stability of 2 3-dihydroxyquinoxaline in acidic water?

I'm developing a UHPLC assay, and the fluorescent product is 2,3-dihydroxyquinoxaline. The reaction to produce this requires hydrochloric acid (about 1.2 M). Will storage in this acidic...

20 February 2021 5,820 4 View

How can we determine the band gap of a composite material that is made up of a composition of direct and indirect band gap semiconductor materials?

I have a direct band gap material and an indirect band gap material. If I made a composite of both through physical mixing. Then how can I determine the band gap of such a material as the Tauc...

17 February 2021 8,104 4 View

Receiving very less number of hits and events in acoustic emission tests?

I am doing a three point bend test with concrete specimen of dimension 280mm*90mm*90mm. I am putting 2 sensors near the notch with 3cms away from both the sides. the experiment ran for 20 mins but...

13 February 2021 2,990 1 View

Is there a way to use waveguide ports for circular antenna design in CST?

Hi, whenever i use circular array i get this error "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solver" Does anyone use circular array with waveguide ports?...

09 February 2021 3,609 8 View