How to calculate superficial gas velocity as function of the height?

08 December 2021 0 10K Report

Hello everyone,

I want to make the superficial gas velocity as a function of the height in a airlift reactor. In literature I cannot find such correlations, and my own attempts resulted in incorrect correlations.

Thus, does anyone know a correlation/derivation which allows me to make such a function?

Badges
Science method

More Tim Woertman's questions See All

What are the key theories relating to the nature and exercise of leadership?

Who are some key author to refer to?

18 May 2024 7,998 5 View

Sexual selection and speciation – unpublished data?

Dear Colleagues, We are conducting a meta-analysis to synthesize comparative studies investigating the relationship between proxies of sexual selection and species richness or speciation rate in...

07 April 2024 5,425 0 View

What can be the reason if electrode A has higher specific capacitance value than electrode B but electrode A has higher Rs value?

I have prepared two same materials with diffferent method and performed electrochemical testing. The electrode A which has higher specific capacitance gives higher (8 times) solution resistance...

25 March 2024 5,833 0 View

Which non-denaturing lysis buffer can comprehensively lyse THP-1 monocytes?

Hi, I am doing a pulldown in THP-1 wt lysate followed by MS-based proteomics. However I get a very low protein amount out of the cells (1 mg per 12 million cells). I use the following lysis...

14 February 2024 9,030 1 View

How to sovle the problem of protein sticking to Ni NTA/IDA columns after SUMO tag cleavage ?

Hi there. I have to use the pET28a-SUMO vector to get my target protein. However, I can‘t separate it from SUMO tag. My protein was about 15 Kda big and has a about 5 value of pI. Due to the...

09 January 2024 2,970 4 View

Is the cif file for MXene(Ti3C2Tx) available?

Is the cif file for MXene(Ti3C2Tx) available? If yes, can anyone provide me with one for performing rietveld refinement? I have search from COD and AMCSD website and can't seem to find one.

13 November 2023 5,000 2 View

Is spatial autocorrelation always a problem while modelling habitat suitability?

I'm wondering if you should differ between presence data of highly mobile species such as Raptors and immobile species (e.g. Plants). The dispersal of plants is limited to a certain distance, so...

23 May 2023 6,666 4 View

How to prevent sticking of single cancer cells to PDMS microfluidic chip?

I'm doing a flow experiment, flowing single MCF7 cells through PDMS microfluidic chips (connected to a glass microscope slide). Currently, I'm using a Pluronic F127 (0.1 wt%) coating. However,...

21 May 2023 9,628 3 View

Difference between power and myAUC in Seurat R package for analyzing Single Cell RNA-seq data?

I am attempting to use the Seurat FindAllMarkers function to validate markers for rice taken from the plantsSCRNA-db. I want to use the ROC test in order to get a good idea of how effective any of...

16 May 2023 2,909 1 View

Difference between power and myAUC in Seurat R package for analyzing Single Cell RNA-seq data?

I am attempting to use the Seurat FindAllMarkers function to validate markers for rice taken from the plantsSCRNA-db. I want to use the ROC test in order to get a good idea of how effective any of...

15 May 2023 6,047 0 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

AUX gas reading problem on QE with full MS and PRM method in one run?

Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...

06 August 2024 4,953 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...

05 August 2024 4,945 3 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

How does the Retention time effect the Biogas Production?

List down the various factors responsible and how does this effect the overall biogas production when it is related to Hydraulic retention time of the digester based on the feedstock?

27 July 2024 4,800 4 View

Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

22 July 2024 1,210 2 View

How can I quantify MDEA (N-Methyldiethanolamine) with a GC-FID?

I have a mixture of glycol, water, MDEA, and piperazine which I want to analyze with GC.

15 July 2024 2,181 10 View

Do you think can be any gas and oil reservoirs in central of Iran?

I want to know more about gas and oil reservoirs in Iran.

14 July 2024 3,350 2 View