For what purposes is it advisable to use small solar linear-focus collectors (PTC, Fresnel reflectors)?

For example, the length of the collector is up to 10 m, the diameter is 1.5-2 m. It seems that flat collectors are usually used for individual solar heating and / or hot water supply.

13 January 2021 8,928 3 View

Why "solar" countries not paying due attention to the questions of solar energy using ?

In particular, electricity generation. Maybe in developing countries.

06 December 2020 3,899 12 View

What is the optimal opening (rim) angle of a solar parabolic (dish) concentrator ?

23 July 2020 3,403 3 View

What are the standard books of postgraduate or master degree or doctor for Physiotherapy students , please write title and outher name?

Iam from kurdistan , physiotherapist study at hmu , I want to list of books that good for master physiotherapy . Thanks.

13 July 2020 9,600 7 View

How can I model 2D wave propagation ?

I want to model 2D wave propagation in a different medium and its reflex from the boundary with different shapes like rectangular or circle. Is any software or Matlab script that can do...

22 June 2019 7,627 5 View

How to perform k-fold cross validation for Neural Network in IBM SPSS Statistics?

I am Using IBM SPSS Statistics for Neural Networks but I am facing difficulty in cross validation of Model. Kindly suggest how to perform K-fold validation in SPSS Statistics. Thanks

11 October 2018 1,499 2 View

Is it possible to have gram positive Azotobacter species by gram staining procedure ?

24 January 2016 8,966 3 View

Is it necessary to prepare FMO controls for each sample to be analyzed when there are two or more samples available?

Hi, I am analysing human peripheral blood by flow cytometry and I have to prepare FMO controls. If I have two or more samples from different persons then should I need to prepare FMO controls for...

27 October 2015 3,771 2 View

Why does through activated sludge process treatment quality of Effluent found satisfactory but through chemical process not very well coagulation?

I have collected effluent sample from the equalization tank of a Textile Dyeing factory ETP. I found TDS- 3000 ppm, pH-11, COD-900 ppm, TSS nearly zero. I have filtrated with 0.45 micron filter...

01 January 1970 4,026 2 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View

OpenBCI eeg--has anyone used them?

I'm looking to try out an off-the-shelf EEG set for some exploratory work. Curious if anyone has used the OpenBCI, and how much set-up work is required. I've heard they are more difficult to get...

01 March 2021 4,128 3 View

Is there any expert in Smart PLS who can help me?

Dear colleagues, I have a manuscript that needs an expert in smart PLS to run the analysis, Is there anyone expert and ready to help me, please?

01 March 2021 8,212 3 View