About designing of packed column?

i want to design a packed column via aspen plus. is there any law to determine the L/V in any stage? for example for any stage, is necessary the L/V ratio be more than 70-80%?

27 August 2020 8,127 3 View

How to interpret arima model with regressors in r?

Hi there; I need to produce such an equation for a time series using arima model: y(t) = y(t-1) + a*x(t) + b*x(t-1) I know if I use for example arima (1,0,0) with x as the exogenous...

07 August 2020 7,438 6 View

Why some use seasonal ARIMA(p,d,q) (P,D, Q) instead of SARIMA?

Hello everyone. I am trying to use ARIMA model for a time series with seasonality. As I am new to this topic, I use the internet as my guide. My question is why anyone should use Seasonal ARIMA...

05 August 2020 219 4 View

How can I add stations to HBV-Light model?

Hi everyone. I've been using the original HBV model, so far. I might need to change it to HBV-light. Does anybody know how to add stations to HBV-light software? I can see there is this...

01 April 2020 1,032 7 View

How to define the parameters of Spatio-Temporal variogram models?

Hi everyone; I have a question regarding the parameters of variogram modelling. Does anyone know how to choose parameters such as Sill, Range and ... for the time, space and joint components of a...

10 February 2020 2,381 6 View

How to change tunit in VariogramST (R)?

Hi there, I am trying to use VariogramST function in R, for spatial-temporal kriging. The values I am working on, are monthly based; while in the function VariogramST, the predefined "tunit" is...

27 January 2020 5,986 3 View

Which website/ organisation do you suggest for English Editing?

I need to have my paper edited. The journal I want to publish in suggests to edit but it is very expensive. I was wondering if you have any experince to share with me.

01 July 2019 486 5 View

What are the reasons of shifting peaks to higher and lower potential in anodic scan and cathodic scan , in CV?

05 September 2016 7,822 4 View

Is Stata or nlogit for estimating a binary model

I am estimating a choice experiment model, but i don't know which software is better, the nlogit software or the stata software. different studies have been using either nlogit or stata and there...

21 November 2014 2,017 5 View

Does anyone have a protocol to orally induce diabetes type 2 in mice?

I need to induce diabetes type 2 in mice. Any suggestions?

06 December 2012 5,126 3 View

Which of the Covid-19 Vaccines would elicit the best immunoprotection and why?

I want to know which of the available Covid-19 Vaccines would elicit the best immunological response and why

02 March 2021 1,388 3 View

Is it possible to remove a preprint posted by a journal which is already rejected?

As we know many journals are posting preprints (DOI) in advance before the peer-review process. However, there is no guarantee that the preprints get published. The journal's reviewers undergo the...

01 March 2021 5,778 2 View

How vaccines of covid 19 work?

Millions ask how vaccines of covid 19 be successful and safe, its here to explain generally how vaccine of pfizer work ,mRNA vaccines teach our cells how to make a protein that will trigger an...

28 February 2021 2,723 4 View

Where can I find public datasets with Covid-19 patient information?

Hi, I'm looking for public datasets that have CT, X-ray information, or medical records for patients with Covid-19. Does anyone have suggestions?

28 February 2021 4,760 3 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

If a given country passes mandatory 'vaccine passport rule' to go outdoors, otherwise stay at home, can it help to vaccinate all against COVID-19?

Wether vaccine passport declared not to go out of home without it may help taking COVID-19 vaccine. Can't it break individual's right to protect the community? Your comments on perspectives...

27 February 2021 5,549 23 View

How long do vaccines protect us against COVID 19?

Or will we have to get vaccinated every year, as in the case of influenza?

27 February 2021 1,048 5 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

Is anyone working on a project focused on immigrants/newcomers working in the hospitality industry and how they have been impacted by COVID?

The on-going Covid-19 pandemic has had devastating economic effects on many industries. However, few have suffered to the same extent as full-service restaurants. Numerous studies have shown that...

24 February 2021 9,496 4 View

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View