Could someone provide me standard procedure for detection of metal in detergent ink and other cleaning agent?

Please provide standard procedure for detection of metal in detergent ink and other cleaning agents.

08 September 2017 1,955 1 View

Can someone teach how to do ionic balance for wastewater samples?

Kindly suggest me.

05 June 2017 2,556 5 View

Is there any possibility for getting higher BOD value than COD in refinery waste water samples?

Generally, which parameter can be high in refinery waste water.

04 May 2017 4,634 28 View

Is there any possibility for getting higher Emulsified Oil value than Free oil in refinery waste water samples?

04 May 2017 382 3 View

Can someone provide me BSEN 60079-29-2 standard method?

10 November 2016 3,325 1 View

How can i calculate and plot Noise Rating Curve?

If someone has related documents or excel sheet, please provide me as soon as possible. Thanks in advance

10 November 2016 9,292 0 View

Could someone suggest any international standard method for microbial Indoor air quality?

10 November 2016 5,526 5 View

I have some rainfall data since 1984 to 2016. Can i predict for rainfall upcoming 2050 using this data?

Kindly provide me datail about the same without using model. please also suggest good model for the same. Thanks in advance.

09 October 2016 1,234 7 View

How can i calculate stack emission rate in kg/hr?

I want to calculate emission rate in kg/hr. its urgent please suggest me.

01 February 2016 5,701 2 View

Can someone provide me some methods?

ISO - 8573-1: 2001 [E]ISO - 8573-2: 1996ISO - 8573-3: 1999[E]ISO - 8573-4: 2001 [E]ISO - 8573-5: 2001 [E]ISO - 8573-6: 2003[E]ISO - 8573-7: 2003[E]ISO - 8573-8: 2004 [E]ISO - 8573-9: 2004...

31 December 2015 5,653 0 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

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Hello house, is it necessary to compute Content Validity Ratio (CVR) for an adapted questionnaire pls?

What should one do if he obtains conflicting results between Content Validity Index (CVI) and CVR for items in a quetionnare. For example based on the CVI obtained the items are acceptable but the...

25 February 2021 7,325 2 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

Multinomial probabilities and confidence intervals - obtaining the CI of the reference category?

Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...

22 February 2021 2,541 4 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

22 February 2021 6,569 3 View