How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

Do you think there is cognitive oversaturation in the current pandemic? What impact can this have? And other manifestations?

Dear colleagues, Do you think there is cognitive oversaturation in the current pandemic? What impact can this have? And other manifestations? The question is mainly aimed at adolescents (pupils,...

23 February 2021 7,796 4 View

What is the standard protocol in doing replicates for C. elegans lifespan assay on solid media (thru worm picking)?

I would like to know what is the standard protocol in the number of worms per plate and number of plates per concentration of extract X in a lifespan assay done in solid media and not automated...

23 February 2021 9,933 1 View

What is the possible cause of MSCs low growing?

Hello Everyone, We are inexperienced in culture of MSCs trying to grow a sample from BM of a mare. It is the second time that after preparation of new medium (DMEM-F12 with high glucose - 10% Hy...

07 February 2021 9,989 7 View

What is better to buy a real-time pcr machine or an endpoint?

Hello everyone, we are acquiring a new molecular biology laboratory with the fundamental objective of identifying species of microalgae and cyanobacteria. Perhaps you could help us decide if it is...

24 January 2021 8,320 4 View

How to improve the yield for the reaction below?

I am trying to increase the yield for the reaction below. I did the column and I saw that the major side-product is the symmetric dimer formed by 4-bromobenzyl bromide. I imagine that NaH is...

20 January 2021 7,874 4 View

Is it possible to calculate the energy stored (kWh) in a EV battery by knowing the cathode discharge potential and specific capacity properties?

For example, if I have the following data for a LiNi0,8Co0,15Al0,05O2 compound used in the cathode: - Specific capacity = 200 mAh/g - Average voltage = 3,7 V I have no information about the...

16 January 2021 3,038 2 View

PCR used to work, now it doesn't, why?

I recently did a PCR with certain primers, and the reaction went well for two gels, but when I repeated the exact same reaction a third time it suddenly didnt work, then I did it a 4th time and it...

12 December 2020 364 5 View

Can you suggest a sub-problem and possible objectives regarding to this thesis/research study?

03 November 2020 8,155 3 View

DNA disappears from gel, whats going on?

Recently I've been doing some PCRs and the primes used to work a month ago, but now that we want to repeat the experiment, they are not working anymore. I have noticed something in my gels, and it...

28 October 2020 4,427 4 View

Is there any forecasted change may happen to the market competitiveness of Global Fortune 500 companies due to pandemic Covid-19?

Covid-19 has made multi-sectoral significant changes, but what are the probable changes that may happen due to pandemic Covid-19. Does Covid-19 influence the globalization scenerio? Thanks in...

14 December 2020 2,600 8 View

Is there an interpretation for Lineweaver-Burk plot which linear regression lines intersect themselves on quadrant I?

Lineweaver-Burk replots for enzyme inhibition prints regression lines intersecting themselves on quadrant I. The interpretations for competitive, noncompetitive, or uncompetitive inhibition does...

24 November 2020 7,753 3 View

the information competition between China and the United States - a study on the Internet ?

I am looking for sources on this subject, books, magazines, or academic researches concerned with the topic of cybersecurity and the competition between China and America in this field.

11 November 2020 6,976 3 View

No title

just wanted to know when i will receive a particular copy of a publication that i have requested

12 October 2020 1,820 2 View

Can I use a mixed questionnaire or mixed questions (closed and open-ended) in qualitative research?

Thanks to everyone for your support. NOW, MORE CLARIFICATION ON WHAT I AM TALKING ABOUT IM MY RESEARCH. SEE BELOW. Can I use a mixed questionnaire or mixed questions (closed and open-ended) in...

02 October 2020 7,912 14 View

I am carrying out research using qualitative research method. Please, can I use a structured questionnaire with closed and open ended questions?

I am carrying out research on competitive intelligence (Establishing an Integrated Competitive and Economic Intelligence Framework and Index to Enhance Competitiveness of Nigerian Firms) using a...

26 September 2020 8,235 37 View

Big players moving small innovation in-house? - theory?

Hi I have a question; is there a theory or or some literature on how new innovations that start in small entrepreneurial SME:s get absorbed as functionalities into big established players? Some...

27 August 2020 2,372 3 View

Can some one help me with the calculating the ratio of capture Ab, conjugate and analyte concentration required for the standard competitive ELISA ?

we are developing a standard competitive assay for small bio-molecule. we are regularly noticing a hook kind of higher signal for one of the middle calibrator (Calibrator concentration and purity...

11 August 2020 718 1 View

Looking for literature?

I am currently looking for relevant literature concerning international competition as I interested in the effects it may have on science diplomacy.

07 July 2020 9,713 1 View

Could we imagine to develop cultivated species that are competitive with the species in their environment?

Right now, the world's agriculture is struggling with weeds. We grow plants that are not very competitive with weeds that can invade their environment. But couldn't we develop cultivated species...

18 June 2020 3,462 6 View