How to deal with computed negative inflows in dams ?

This question aims to explore, from the part of expert colleagues, some methods that can be used to adjust the negative inflows calculated for the dams.

14 December 2019 1,486 3 View

How to choose reviewers for your submission ?

Most of journals require for paper submission to suggest three or four reviewers. How to choose them ? Is it among the authors of the papers cited in your manuscript, among the members of the...

09 September 2019 8,943 2 View

What is the best pipeline design software?

Hello i am looking for a software which can be used to design pipeline for a heating system. I need it to study the stress in pipes etc... Any software which could be tested with a free version...

28 March 2018 3,778 3 View

About the Protein extraction and purification?

Dear Researcher Please, If that possible to extract and purify a protein from SDS page Gel staining with coomassie Bleu. Many thanks

11 January 2017 1,049 4 View

Does anyone measured composite layers engineering constants using DIC for SHPB specimens?

26 December 2014 3,403 2 View

How can I analyze cell staining images using Fiji / ImageJ?

I have several fluorescent microscopy images for cell staining using three channels. Can you please suggest some methods to analyze these images?

05 May 2014 4,270 2 View

Can anyone help with MTT assay results?

I applied a MTT assay for A549 cell lines treated with different concentrations of Aluminium Oxide, I got the data from the plate reader, but I can't decide if my results are good or not ? And is...

30 April 2014 8,508 6 View

Online surveys for social sciences researchs: what are your opinions about this tool and how can we improve the research design to incorporate online?

Good morning everyone, Due to the pandemic, I conducted several online surveys. It is quite agile, not at all expensive, but there are several problems: the sample's representativeness and its...

21 February 2021 7,457 3 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Hi, can a variable in a questionnaire be measured with a series of questions or it has to one question for one variable?

I am doing research on the impact of competitive bidding on project success and would like to use SEM. Project success shall be: cost overage, completion time, quality of works and variation...

13 February 2021 4,413 6 View

Why non-specific band appear on T-ARMS PCR?

Hi everyone. We want to know how can I remove the non-specific band amplification on this variant. Although the amplification of non-specific band is not as intense as the band that we want, but...

09 February 2021 588 2 View

What is your opinion regarding opening of school? Now students are supposed to join school. Do you think that decision is in the interest of society ?

From long Pendamic now government is opening school and colleges on for off line classes. What do you think that this decision is fruitful to the students and society too?

08 February 2021 3,068 6 View

Fractional derivative users, are you on the same page with me on the validity of the fractional order parameter, say alpha?

Taking a fractional ODE problem as an example. It has come to my attention that if the fractional order parameter is in the interval (0,1], many only presents results for alpha=0.9, 0.99. I saw...

08 February 2021 9,671 3 View

Looking for a scale to measure attitudes towards violence against women and the factors that impact attitudes in South Africa?

I am interested in doing research on attitudes towards violence against women and the factors that impact attitudes in South Africa? Does anyone know which attitude scale I can use to measure...

06 February 2021 3,076 1 View

To what extent do I need to justify my control variables?

Hi everyone, I am writing a research proposal for my masters applications and am in dire need of guidance. I suggest to quantitatively investigate the potential correlation between feminist...

05 February 2021 3,666 8 View

Is the use of "multivariate " or "multivariable" was correct in multiple responses study ?

In statistics most of the time, we use these two-term exchangeable, but in my opinion, there is a difference between them. Please suggest your opinion

04 February 2021 7,407 7 View

What are the things you should keep in mind while designing a controller for a quadrotor and want to implement it on hardware (via arducopter) ?

I am designing a flight controller for a quadrotor. At first I am designing a nested/cascaded controller consisting of only proportional controllers Kp . Now, if i tune the rate controller for 10...

03 February 2021 5,001 3 View