Difference in the position of a peak (wavelength) on conversion from transmittance mode to absorption mode?

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With the volume of research avilable on the net, it has become difficult to do review of related lterature, How a resercher should go about it?

Actually all the good journals needed to be subsciribed, a common reaesrcher finds it hard to get access to these journals. In this situation they go for open resources whose volume is so big and...

14 June 2024 7,000 0 View

Does the China's adaption to GM soybean Technology contradicts to its practice of virtual water trade policy?

Recently, the Ministry of Agricultural and Rural Affairs enacted the approval of twelve genetically modified (GM) soybean varieties, marking a strategic pivot in China's quest for food security....

05 June 2024 1,143 0 View

Having issue in gene amplification.How will this work?

The common Tm without Restriction site is 61 degrees and the Tm with Restriction site is 71 degrees. The reaction conditions i followed is 95 degrees 3 mins, 95 degrees 30 secs, Tm (60-68) degrees...

02 May 2024 530 3 View

Is anyone here who have access to Bloomberg terminal?

Actually I want to collect macroeconomic announcement and variable data for India but I don't have access to Bloomberg. I urgently need it. Please help me to get the data...i shall be very...

11 February 2024 3,213 0 View

Why cellulose acetate leave whiteness when it dip into water?

I used to dissolve it in acetone and made a film but when I dip it in water white and opaque film is produced why??

20 May 2023 7,964 0 View

What are the best analytical methods to differentiate and quantify silk fibroin and sericin isolated from Bombyx mori cocoons?

I have to estimate the purity of isolated silk fibroin in each batch. Thus, looking for methods to estimate fibroin and sericin concentration in the solution.

26 April 2023 6,783 0 View

Equally weighted portfolio is better or market cap weighted portfolio?

Fama and french calculated value weighted portfolio return while framing SMB, HML and WML factor. But why not equal weighted portfolio returns because I think equal weighted portfolio have more...

12 December 2022 6,268 2 View

What is the need of calculating yearly alpha according to this paper?

I want to identify whether stocks has postive alpha or negative alpha based on carhart four factor model. I calculated smb, hml and wml factor daily series. And then run a regression by taking...

04 December 2022 3,697 3 View

How to calculate total return while creating portfolio for fama french 3 factor model?

I have a paper which calculate total return including dividend payment. I have data of dividend per share and their announcement date, record date and ex-dividend date for all companies in bse...

30 November 2022 5,087 0 View

What is the difference between structural change or shift and Regime shift?

I wan to understand the difference between structural shifts in the time series and regime shift in the time series. Both are time varying models.

25 November 2022 7,393 5 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Is there anyone with experience in TEM analysis who can assist with a manuscript for an upcoming journal?

Hello dear colleagues, We have prepared a manuscript on NiTi-based alloys and are seeking a second opinion on our current TEM results. If you are a Ph.D. holder with experience in TEM and have...

07 August 2024 9,563 0 View

What is the prepared reference material that can be used in inductively coupled plasma optical emission spectrometry (ICP-OES) to measure REE and U ?

What is the prepared reference material that can be used in the ICPE-9820 Shimadzu Japan instrument, which employs inductively coupled plasma optical emission spectrometry (ICP-OES) to measure...

06 August 2024 1,896 1 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I add own Henry coefficients in Aspen Plus?

Hi, i would like to simulate an absorption process in Aspen Plus. I want to use the NRTL model und would like to add some individual Henry coefficients. Is that possible and how?

05 August 2024 2,333 2 View

Could dyes amplify the spectrum of light to a specific wavelength?

I am interested to know the behavior of dyes toward light. Specifically, Blue dyes re-emit the spectrum, especially from the green zone (known as principal in LED lamps, and blue dyes are known...

05 August 2024 3,290 1 View

Which distribution type should I use when calculating the average particle size from TEM image? and how to calculate the error ?

average particle size calculation from TEM

04 August 2024 2,921 1 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View

¿Are oxygen vacancies in semiconductors capable to change the band gap?

Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...

30 July 2024 8,339 2 View

Is artifacts in XPS possible to build high deviation in binding energy larger than 5 eV??

Hello. Thanks for your consideration to see my question. Recently, I conducted XPS anaylsis of g-CN that is prepared from thermal polycondensation of DCDA, so-called conventional bulk-g-CN,...

30 July 2024 9,824 2 View