Has anyone come across any study of the varying spectrum, colour and CCT of daylight at various geographic locations/conditions?

CCT = Color Correlated Temperature Please provide references. Preferably for tropical regions. Thanks in Advance

08 September 2019 3,900 10 View

Why is the standard colour temperature for Daylight 6500 K?

Isn't 6500 K bluish? To me daylight looks yellowish. We've all coloured the sun and sunlight as yellow since we've been kids. Someone please explain why 6500 K is standard. Is it something that...

08 September 2019 915 4 View

Why is there a loss of information in the below mathematical operation?

To elaborate: If X = (convolution of p(a), q(a) ,r(a))/(convolution of p(a), q(a)) Y = (convolution of p(a), q(a) ,s(a))/(convolution of p(a), q(a)) Why is X almost equal to Y even if...

08 September 2019 7,789 5 View

Can someone explain how the size of the tolerance ellipsoids in the Lab space was defined?

Were they experimentally derived based on color perception from human subjects or can the size of the tolerance ellipsoid for every "color" be mathematically calculated for every point in the 3D...

07 August 2019 6,068 2 View

Can someone physically explain the conversion PROCESS of RGB color space to XYZ color space and LAB color space?

..

05 June 2019 6,117 16 View

How to convert RGB values to their corresponding colors and their dominant wavelengths in MATLAB?

I understand there's a challenge in the conversion as the colors are not monochromatic and there could be metamerism. I just want an approximation for the purpose of visualization of data.

04 May 2019 4,994 12 View

How do you define and measure human error in experiments?

For eg. sample variability in different solar cells (which are of identical configurations) fabricated manually.

08 September 2018 6,829 10 View

What is the colour of silver nanoparticles?

What would be the colour if AgNPs of sizes 50 nm - 80 nm, along with bigger aggregates are present together.

31 December 2017 9,214 4 View

Can anyone suggest some good journals to submit work on DSSCs with normalized impact factor between 1 and 3?

Thanks in advance for your help.

09 October 2017 9,925 3 View

How does Sigma Aldrich check for 99% purity of compounds?

For eg. I would like to what are the analytical techniques used in checking purity of natural dyes bought from Sigma Aldrich so as to conduct the same tests on the dyes extracted from other sources.

02 March 2017 8,688 2 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

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02 March 2021 932 1 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

How does Scientist/RG community evaluates a case study article and the impact of it on a researcher career?

An article that is published as a case study in the SJR listed journal. How much value is added to a researcher career? How it is evaluated by a scientific researcher/University admission...

02 March 2021 9,661 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View