Is it possible to perform batch experiments with three components, two solutes and soil?

I am not sure how it is possible to see the interaction of two solutes on each other and soil particles! So I like to do batch experiments firstly but what I have seen so far isotherms are fitted...

06 July 2016 4,531 6 View

How to model nitrate capture (sequestration) by a nanocomposite in a soil column?

As it is seen in literature, the ADE with a (dS/dt) is used to model a reactive transport. However, how it can be modeled if nitrate as one solute is stuck by another solute (e.g. nanoparticles)?...

06 July 2016 6,415 1 View

Which parameters or data are reuired to model reactive transpoet modeling of reduced nitrtae by adsorbrnt by Phreeqc or any other suitable one?

To reduce nitrate leaching in soil, sorbents would be used to stop them. Now I am beginer in geochemistry and don't know how to do relevant chemical experiments? And which data I need to couple...

06 July 2016 7,788 2 View

What are viscose resistance (1/m^2) and internal resistance (1/m) for concrete?

11 December 2014 3,615 0 View

Is there any guidline or instructions to design an experimental flume for simulating the sediment transport and water flow in lab?

Dimensions (preferably small), and the materials (plexi glass, concrete and ...), outlet spillway, Slope, kind of sediment, and all parameters affect the results.

11 December 2014 4,190 9 View

Who has an example of transport and uptake of Cd in soil and plant by HYDRUS 1D?

11 December 2014 2,503 1 View

Would it be practical to build pervious (porous) concrete channels for decreasing discharge and contamination of stormwater?

10 November 2014 4,031 7 View

What percentage of HNO3 and HCl is sufficient to digest a soil sample to determine Cd concentration?

Please mention the related and valid international guideline.

10 November 2014 5,651 12 View

Can E. Coli b transported to root and higher organs of a plant be modeled mathematically?

What sorts of properties of soil and plant are effective?

04 May 2014 3,112 2 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 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

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

The procedure compute?

02 March 2021 5,204 3 View

Does anyone know what a '.' means in SPSS?

Hi everyone! I was wondering if anyone would be so kind as to help me with regards to my data set on SPSS! I was checking for multivariate outliers via the standardised residuals ('Linear...

02 March 2021 7,910 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 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