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

How to perform IDS on real traffic using machine learning?

I'm working on IDS using machine learning on real traffic. basically, Lots of work has been done on datasets and I have found a very few works on testing on real traffic. So I want to know how can...

18 October 2020 2,485 3 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

What are protein-ligand interactions for each of the ligands?

Can someone please simulate and explain these protein-ligand interactions for each of the ligands: Please help me, it's urgent. Protein 5I08 : https://www.rcsb.org/structure/5I08 Ligands 1R42 :...

24 March 2020 4,144 4 View

Parallel Computing of MCNP?

Hi dear I want to use MICH2 for parallel computing of MCNP. I Try it nut MPIEXEC run multi-time instead of running parallel? Can anyone help me? my command is here: mpiexec -n 2 -noprompt...

03 October 2019 3,106 2 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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 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

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View