How to estimate the compressor's weight/mass with a given pressure ratio and mass flow rate ?

I want to estimate the mass (does not have to be accurate) of a centrifugal compressor knowing the required mass flow rate and pressure ratio. Thanks in advance!

07 May 2020 2,487 1 View

Is confirmation considered as repair (From a CA POV)?

09 November 2019 6,005 3 View

Laser intensities equation through lossy medium?

If I have two different wavelength laser intensities namely: i1 , i2 passing through medium which have same linear absorption coefficient (a) for both intensities (that means i1 and i2 are...

28 July 2019 6,340 3 View

To explain the SEM image of SnS nanofilm?

Dear colleagues If its possible to explain the SEM image for SnS...

09 January 2018 3,750 19 View

Who can help me please in classification the attached parasites photos?

NB. Some photos as attached were taken from soil samples, while other were taken from water and wastewater samples.

27 March 2017 7,234 3 View

How uracil dna glycosylase can distinguish between target DNA and contaminant ? or it's just a precaution for future contamination?

use of uracil DNA glycosylase to control carry-over contamination in polymerase chain reactions by replacing dTTP with dUTP.

30 January 2017 5,203 5 View

Could someone provide me with the physical and chemical conditions of Takahashi primers (T801 and T935) for Torque teno virus (TTV)?

06 November 2016 2,925 4 View

What is the programme used in non monotone non ignorable missing covariates in GLMM?

what is the programme used in non monotone non ignorable missing covariates in GLMM?to do multiple imputation the EM algorithm LIKELIHOOD Sensitivity Analysis?

17 March 2015 6,569 3 View

Are there any health impact or burden of disease assessment studies of traffic-related pollution and new cases of childhood asthma?

I am looking for studies which estimated the number of new asthma cases in children (i.e. asthma onset) that can be attributed to traffic-related air pollution or traffic emissions. I only managed...

01 January 1970 7,215 8 View

What is the reason of bubbles that form in TPU film after casting?

Can any one help me to Know the reason of my problem which relates to the TPU( thermoplastic polyurethane): I synthesized TPU by prepolymer techniques and during casting I recognized a formation...

01 January 1970 7,826 6 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View