GDP weighted average of distance as proxy for the multilateral resistance term ? how to calculate ? Formula ? In Gravity model of Trade.

More Muhammad Saqib Irshad's questions See All

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

Why the results when using wall thickness and when using shell conduction are different in ansys fluent?

Actually, I am running cfd simulation for a heat exchanger which has two fluids one hot and other one is cold fluid. there is a solid domain between them, which I removed and instead I have used...

01 March 2021 9,537 2 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to calculate the annealing temperature of a primer pair?

I have to amplify a gene and my primers just reached. The Tm for Forward primer is 64.2, and that of reverse primer is 65.5. Can some one suggest how to get the best annealing temperature? Thanks...

01 March 2021 360 7 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View

How to include original NMR data in a manuscript?

hello. i am junior researcher. I received a comment from a reviewer that he could not find NMR data in my submitted paper. I had included the NMR graph with explanation and formula to calculate...

27 February 2021 734 4 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Does anyone know of a predictable relationship beween surface gravity and atmospheric composition?

The attached file demonstrates that there is a predictable relationship between the structural density of a terrestrial body and its none-rotating surface gravity. Using Newton's gravity law of...

26 February 2021 2,317 3 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

What should be the duration of exposure to simulated space environments with Rodents?

Hi, I am currently working on a pilot study to get some data related to the impact of long duration spaceflight to the microbiome and the immune system. I plan to use rats and simulate...

22 February 2021 592 1 View

How to disaggregate country data into city ones?

I'm using a number of indicators in my research which are not available at a sub-national level. Is there a reliable method for disaggregating the country data into city ones? (preferably with a...

16 February 2021 6,861 3 View

Comsol Maximum number of Newton iterations reached?

Comsol is investigating deformation due to gravity. Gravity is applied to the nanosheets to check for displacement and stress. If I input the Young's modulus of the channel to about 1 [GPa], the...

15 February 2021 6,027 3 View

How is Initial GDP measured ?

Dear All, I am working on estimating Debt-Growth Threshold but confused about some points. My questions are; - How do we calculate initial GDP Per Capita? Shall we do it in STATA or excel file?...

15 February 2021 2,677 2 View

How to incorporate Monte Carlo simulation in for a real trading data?

Hello, My area of research is to valuate Exchange option (Margrabe option). I am looking for Monte Carlo simulation technique that can be applied to some real trading data. I have evaluated them...

05 February 2021 1,605 4 View

Should I use nominal or real trade openness index?

Hello every one. At the moment, I am conducting a research (PhD Theses) about trade openness and economic growth in Libya. My question is that, should I use nominal or real trade openness index....

21 January 2021 1,273 6 View

Who knows some kind of legal scheme for renewable energy certificates (REC, iREC, GO) integration requirements?

Who is a "central body" for renewable energy source certification and process implementation? Are REC, iREC, GO securities or there is another legal scheme? Is it possible to trade them outside...

21 January 2021 4,179 3 View

Why does Reaction Wood acts opposite in gymnosperm and angiosperms?

I am wondering why the Gymnosperms have an opposite behaviour that Angiosperms in the Reaction Wood (RW). Are there some new findings regarding that? Studies say that causal agents can be the...

10 January 2021 8,744 4 View

Mousumi Bhattacharya

Refer to

1.Declining Distance Effects in International Trade: Some Country

-Level Evidence

Michael Bleaney and Abelardo Salazar Neaves

University of Nottingham

2.Analysis of the determinants of international seafood trade using a gravity model

3.Gravity with Gravitas: A Solution to

the Border Puzzle

Muhammad Saqib Irshad

Thank you Madam Mousumi Bhattacharya

Mansoor Sadeghi

Please explain for me.