Cycling in distillation column?

What does it mean by cycling in distillation columns?

03 April 2019 1,647 7 View

Optimization algorithm in Aspen Plus?

Guidance requested in writing an optimization algorithm in Aspen Plus..

01 February 2019 4,412 1 View

Exergy efficiency of HiDC?

How to determine the exergy efficiency of heat integrated distillation columns, during cryogenic air separation. Would appreciate if anyone provide formula for both column`s.

01 February 2019 7,162 5 View

Distillation optimization in Aspen Plus?

I am using "Aspen Plus Optimizer Tool" to optimize the distillation column design with respect to reflux ratio and number of theoratical stages. However, I am unable to do sensitivity analysis,...

31 December 2018 586 17 View

Efficiency of a process?

How we can calculate a combined efficiency of a process? e.g. if two compressors are installed, then how can we calculate their combined efficiency? If compressors, distillation column, turbine...

31 December 2018 5,189 4 View

Exergy Analysis of Distillation Column?

Hello. I am using heat integrated distillation column. However, one of the column`s exergy efficiency is greater than 100%? I have seen a lot of literature but still unable to figure...

11 December 2018 9,880 3 View

I`ve modelled a reactor, found 2.75 m3 volume on Aspen Plus for 98% conversion, but aspen hysys simulation results 15 m3. Can it be justifiable?

Difference b/w Two Softwares results? which one to use? or Report both in the calculation.

31 December 2016 9,812 12 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

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 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

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03 March 2021 5,360 2 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

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