How to create gas molecule-surface adsorption model for gas-sensing in BURAI??

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What is the average stove efficiency for household gas stove especially in the Indian subcontinent?

In one paper, I saw it to be about 36%. But as the paper was published in 1997, shouldn't modern household gas stoves be more efficient?

14 December 2020 6,199 6 View

Is there a guide for Aspen Hysys to show unit operation calculations?

For example, let's say if I design a conversion reactor and give inlet temperature,pressure,composition and reaction kinetics then Hysys will show me the outlet conditions. It doesn't,however,show...

09 December 2020 8,375 3 View

Which decision rule algorithm is best in machine learning? Is there any algorithm based on rough sets that gives good results?

I am trying to learn some algorithms that extract decision rules from data sets, particularly by using rough sets. I need to know whether they are reliable and efficient (like LEM2) for real datasets?

17 August 2020 7,013 6 View

Does surface particle size (surface component) has any relation with atmospheric optical depth (atmospheric component)?

I have estimated thermal inertia for a surface followed by its particle size, I have to look for the relation between particle size and atmospheric optical depth, I have gone through the...

11 October 2019 7,986 3 View

Techniques which can be used for delineating the rim of a feature?

Hi, I want to delineate the rim of this crater (refer attached image) using remote sensing software, apart from visual interpretation what are the other available techniques which i can opt...

06 September 2019 9,987 3 View

Is there any data set from where i can find country wise data on FDI & portfolio investment inflows in Pakistan?

i need data on private capital inflows in Pakistan, for this sake i have to generate the variable by adding FDI in the reporting economy and the private elements of portfolio investment, financial...

07 July 2019 4,316 5 View

Extracting maximum elevation points between 0.8R and 1.2R?

I have xy location and radius, from these details i make buffer of 0.8R and 1.2R, then i have divided the circles into 36 segments with an interval of 10 degree. I have DEM image of this region....

08 May 2019 4,892 2 View

How can we justify that it is the interference pattern of electromagnetic waves?

I designed double slit experiment using RF module in COMSOL and tried to get interference patter, The results are following with 930MHz frequency. What do you predict from the pattern?

21 January 2019 8,356 2 View

Including Renewable Energy Sources in Matpower to solve Optimal Power Flow?

I'm modelling my own grid in matpower to calculate the optimal power flow (opf). The thing is my grid has WT, PV & batteries in them along with the conventional generators. Does anyone know...

29 December 2018 4,379 6 View

Can I design Young's Double slit experiment on COMSOL using RF module ?

I want to design and simulate Young's double slit experiment on COMSOL using RF module ? I am unable to get results. Can anyone please help me ?

30 November 2018 4,536 1 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Hadi Jabbar Alagealy

the fabrication process using different metal oxides materials for comparative analysis gas detection at room temperature.It has been analyzed based on density functional theory and Quantum Espresso software in BURAI.

Yavar T. Azar

Hi Shaheen,

Two alternatives for BURAI are ASE (atomic simulation environment) and VNL-ATK,

take a look at this video

https://www.youtube.com/watch?v=EQ3Fy3ugy6k