Hi All how can i estimate or select the parametrers weight (wi)while using the water qualty index to evaluate the qualty of the water?

More Abubakr Mustafa Elkhaleefa's questions See All

Advanced Oxidation process ?

Advanced oxidation process is usually produces carbon dioxide , is it harmful to run such setup in the lab?

17 May 2024 6,550 3 View

For learning PSCAD and PSS/E softwares. Are there any free training courses/lectures you can recommend or share with us?

I need to learn more about the connection study of inverter based resource. Modeling of renewable energy source integrations and their control design. Additionally, I want to understand how we can...

17 February 2024 5,204 2 View

How can i conduct (safely) the reaction of aluminium with hydrochloric acid ?

i need to prepare a catalyst (aluminium chloride ) , it is a product of the aluminium reaction with hydrochloric acid . BUT the problem is ; Hydrogen gas will come out , which is very dangerous ,...

19 December 2023 9,737 10 View

How can we know which criteria (ISE, IAE, ITSE, and ITAE) will be the best for my work, especially for power system applications?

Most of the researchers use performance standards for stability analysis such as Integral square error (ISE), Integral absolute error (IAE), Integral time absolute error (ITAE), and Integral...

16 March 2022 539 19 View

Can anyone brief me how to get the properties of mixtures in Engineering Equation Solver?

I have two binary mixtures for analyzing Brayton cycle. The mixtures are: CO2+Ar and CO2+Butane Kindly help me how to call enthalpy, entropy and other thermophysical properties using EES.

13 August 2018 3,719 4 View

Why we obtain different exergetic efficiency from two definitions of exergetic efficiency when analyzing a thermodynamic power cycle?

There are two definitions of exergy efficiency. i.e. 1. eff = Wnet/ Exergy In 2. eff= 1- (exergy destruction/ Exergy In ) While analyzing supercritical CO2 power cycles, the exergy efficiency...

10 April 2018 2,026 5 View

How can I estimate the area of heat recovery heat exchanger having flue gases on one side and supercritical CO2 on the other side?

I want to calculate the area of heat recovery heat exchanger with supercritical CO2 as working fluid for recovering heat from flue gases.

29 January 2018 5,993 5 View

How can I calculate exergy destruction in combustion chamber of a gas turbine Brayton cycle for inlet states, mass flow rates and complete combustion?

The enthalpy and mass flow rates of air after compression, mass flow rate of inlet fuel (CH4) and mass flow rates after combustion reaction are known. Complete combustion is assumed in combustion...

25 November 2017 5,419 14 View

How to use routing protocols come with INET in omnet++?

I am plan to use some routing protocols come with INET such as rip, ospf in wireless sensors network. my idea is to start with wireless tutorial comes with inet. my question is how I could merge...

30 June 2016 2,589 10 View

What is the effect of the plate thickness and column size on the moment transfer at the plate column-interaction?

the plate column interaction the one can say that Mcolumn = K EI/ L Where: K= 4, for case of rigid connection. But when the plate thickness is getting smaller compared to the size of the column,...

21 June 2016 8,888 3 View

If we are using snowball sampling technique, how do we justify the true representativeness of the sample statistically? is there any statistical test?

Are there any statistical methods to justify your sampling technique using SPSS or AMOS?

05 August 2024 9,153 4 View

What are possible strategies can be used to analyze data under sequential explanatory mixed method approach?

Better ways to analyze the qualitative and quantitative data in a sequential explanatory mixed method approaches

04 August 2024 2,703 6 View

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Request for Advice: Starch Metabolism Research Project?

I am currently considering a research project focusing on a comparative analysis of starch metabolism in orchids and roses. I am particularly interested in identifying the types and quantities of...

30 July 2024 4,267 2 View

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Pragmatic inquiry research design?

Employing a pragmatic inquiry research design, looking for published research using this method, employing qualitative research data collection methods of semi-structured interview and focus...

28 July 2024 540 2 View

Can i apply a public questionnaire but analyse it with a different data analysis method?

First, thanks for taking the time to read my puzzle 🥹! I am currently working on the methodology part of my dissertation, and I have chosen a questionnaire as the instrument for my quantitative...

27 July 2024 3,457 3 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

Do we put respondents data in research methods or findings section of a qualitative study?

Are both ways acceptable, or is there any convention to them? Thanks.

22 July 2024 6,988 4 View

Restaurant research, methods of quantitative and qualitative statistics?

Greetings! I am looking for materials on quantitative and qualitative research. What are the methods of collecting information and the principles of their implementation? I would like to make an...

20 July 2024 2,033 7 View

Syed Mohammad Salman Naqvi

There are a few methods for estimating or selecting the parameters weight (wi) while using the water quality index (WQI) to evaluate the quality of the water.

One method is to use the Analytical Hierarchical Process (AHP). The AHP is a multi-criteria decision-making (MCDM) method that can be used to determine the relative importance of different factors. In the case of WQI, the factors would be the water quality parameters.

The AHP involves the following steps:

Identify the water quality parameters that will be used in the WQI.

Develop a hierarchy of the parameters, with the most important parameter at the top of the hierarchy.

Assign weights to the parameters based on their relative importance.

Calculate the WQI for each water sample.

Another method for estimating or selecting the parameters weight (wi) is to use expert judgment. This involves consulting with experts in water quality to get their opinion on the relative importance of the different parameters.

The expert judgment method is often used in conjunction with the AHP. The AHP can be used to provide a more structured approach to the process, while the expert judgment can be used to get the input of experienced professionals.

Finally, the parameters weight (wi) can also be estimated using statistical methods. This involves collecting data on the water quality parameters and using statistical techniques to determine their relative importance.

The statistical methods approach is often used when there is a large amount of data available. However, it can be more complex than the other two methods.

The best method for estimating or selecting the parameters weight (wi) will depend on the specific situation. If there is a limited amount of data available, then the expert judgment method may be the best option. If there is a large amount of data available, then the statistical methods approach may be the best option.

In general, the parameters weight (wi) should be based on the relative importance of the different water quality parameters. The parameters that are most important for human health or the environment should have the highest weights.

Carlos Francisco Lucena Gonzalez

I think that the next references could you help:

https://www.sciencedirect.com/science/article/abs/pii/S1470160X16307476

https://pubmed.ncbi.nlm.nih.gov/31401332/

Article A comprehensive review of water quality indices (WQIs): hist...

Article Water quality indices: challenges and applications-an overview