Is it easy to handle discontinuities in objective function with mathematical optimization?

Mathematical programming is the best optimization tool with many years of strong theoretical background. Also, it is demonstrated that it can solve complex optimization problems on the scale of...

07 January 2021 8,757 22 View

What do you think about improving metaheuristics using mathematical programming?

In recent years, many new heuristic algorithms are proposed in the community. However, it seems that they are already following a similar concept and they have similar benefits and drawbacks....

30 December 2020 5,017 34 View

Can you suggest me some good articles and their data in Multi-criteria decision making in GIS?

Hello everybody, I'm trying to study and learn how to implement a Multi-Criteria Decision Making strategy in GIS based on a good ISI article published preferably after 2015 or so. I need its...

19 April 2018 901 10 View

What kind of hydrological or statistical methods could be implemented to make the data smoother?

I would like to apply flood routing methods on a raw discharge-time data set. It just does not work and I guess that the sharp edges of the data are causing the problem. Is there any hydrological...

11 April 2018 1,728 4 View

Can anybody help me with some articles about visualization in GIS?

Hello I'm looking for some articles which can easily demonstrate the role of visualization in GIS, for example using different graphs, some figures showing spatial ope(rations like buffers etc) or...

21 December 2017 6,048 6 View

What is the additive and fillers for industrial production of enzymes (like phytase) ?

05 February 2017 5,073 2 View

What are most powerful signal peptides in bacteria for secretion?

i want design a powerful signal peptide which can secrete proteins out so i need to know which signal peptides are exist to this porpose . then study them and design my signal peptide.

10 August 2016 1,353 3 View

What is the effect of acidic conditions (pH ~4-6) on ascorbic acid quality?

Does anyone know what the effect of acidic condition (acetic acid solution, pH ~4-5.5) on the quality of ascorbic acid (vitamine C) is? How long do you guess that we can keep this solution with...

23 April 2013 3,266 5 View

Skills Required for a Spatial Data Analyst

Hello, I've decided to start a discussion, I'll be thankful if you can add something here or encourage any classmates, colleagues or researchers to share their knowledge as well. Suppose...

01 January 1970 8,216 4 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

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

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

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View