How to avoid polypyrrole deposit on counter electrode?

Hi all, Currently, I electrodeposited polypyrrole on carbon electrode but I got some problem when polypyrrole also deposited on the surface of the counter electrode. The concentration of pyrrole...

05 February 2021 2,103 3 View

How to Extract DNA from dried rhizomes, wood, galls etc. stored for a long time?

Dear Respectable Scientists, I have been trying to extract DNA from above mentioned sources using different CTAB/SDS Buffer Compositions and purifying agents but I am not able to extract DNA from...

12 January 2021 5,899 8 View

How to carry out Fisher's Exact Test in SPSS for multiple Response Dataset?

I have a dataset including Categorical variables and involves multiple response variable. 20% of the cells in cross tab has less than 5 frequencies and hence I cannot carry out a Chi-square Test....

26 December 2020 4,180 3 View

**CLOSED** Behavioral changes due to Covid-19?

Hello fellow researchers around the globe :) Happy Holidays!! We are conducting a survey on understanding how device usage during everyday life has developed amid the Covid-19...

21 December 2020 5,363 4 View

Does the Chinese navigation satellite system (Beidou) become global or still regional?

I know that this system was regional before, thus covering specific areas not alla the global

09 December 2020 3,343 3 View

Do the exams for students in electronic education have the same credibility in terms of measuring and evaluating learning as traditional education?

Educators around the world face a new challenge of how to conduct exams to assess what students have learned after the shift towards e-learning following the closure of nearly all universities...

21 September 2020 4,180 15 View

What Features Should an Online Exam System Include?

ith the development of Internet technology, online examination has become more Polar because it helps people save a great deal of energy and time. As an effective and efficient method of teaching...

21 September 2020 2,814 12 View

How can heat transfer coefficient on shell side of Shell and tube heat exchange can be calculated using Ansys Fluent?

I have to calculate heat transfer co-efficient on shell side and plot its variation along the length of heat exchanger

07 September 2020 9,078 6 View

How to get rid of negative Pressure? and my pressure readings are not accurate what can be the cause?

I am simulating shell and tube heat ex-changer i have mass flow inlet and pressure oulet (zero gauge) but my pressure readings are not accurate i have tried velocity inlet but results are same....

07 September 2020 7,298 11 View

AST result in spss ?

hello dear microbiologist Am kinda new and still learning SPSS I want to know what kind of tests should I run for AST results I see lots of paper use chi square. And can anyone provide me with...

10 August 2020 9,911 4 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to model Supercritical water gasification (SCWG) process in Homer software?

Hi everyone How to model Supercritical water gasification (SCWG) process in Homer software?

25 February 2021 4,075 1 View