What is the problem with not using pneumatic motor in vehicles?

More Masoudi Hamid's questions See All

Quantile cointegration estimate?

Dear all, does anyone has the estimation code for Xiao (2009) quantile cointegration test.

28 July 2024 6,133 3 View

Getting standard errors and T-statistics for Dynamic panel data with instrumental variable method?

Dear all, I have a user written estimation code based on the paper dynamic panel data estimations with fixed effect by Galvao(2009). I have seen many papers using this method and pvalue, standard...

22 July 2024 4,588 1 View

How many samples size should I select to compare both groups?

I want to study the differences between two groups: the treatment group and the comparison group. The total population consists of 60000 women in the treatment group, distributed across different...

21 July 2024 669 3 View

Is it appropriate to use ARDL(autoregressive distributed lag model) with environmental Kuznets curve?

The underlying idea behind the environmental Kuznets curve is that GDP per capita initially increases environmental degradation but later reduces the environmental degradation as the result of the...

28 June 2024 949 0 View

Why is stiffness of structure reduced in pushover after gravity case?

So I have a structure with a pile foundation and a gravity load acting on the structure. The demand curve is drawn by running an elastic analysis. Pile-Soil is modelled as p-y, t-z, and q-z...

14 June 2024 5,220 0 View

I want to ask if I suppose to add 200mg of antibiotic in 100ml of water so what is the concentration of this stock solution in microgram?

Hello, I recently started working with antibiotics and I do not have that much experience of making dilutions accurately. I want to ask if I suppose to add 200mg of antibiotic in 100ml of water...

08 June 2024 2,285 6 View

Are you interested in submitting papers to a new journal called "InfoScience Trends"?

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26 April 2024 9,521 1 View

What is the main substance of bone marrow?

Red bone marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets. Yellow bone marrow is made mostly of fat and contains stem cells that can become...

10 April 2024 6,011 1 View

Journal of Renal Injury Prevention. How we can activates its profile in RG?

Dear Sir, Hello I am Hamid Nasri, founder of Journal of Renal Injury Prevention; https://www.journalrip.com/ Please let me know, how we can activates its profile in RG. Thank you Hamid...

30 March 2024 5,569 2 View

How to Resolve DNA Extraction Failures in FFPE Tissue Processing?

Hello, I am currently extracting DNA from formalin-fixed (25 mg) and paraffin-embedded (FFPE) tissues(15 sections of 8 micrometers each), but I am encountering some issues. Since I do not have...

27 March 2024 4,031 5 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

An animal in not a rock (e.g., Koch 2013), it has an internal constitution that can be modified?

Vertebrates and invertebrates (e.g., arthropods: insects, crustaceans, etc.) have two different neuro-muscular systems given their differential construction: the former have an endoskeleton and...

07 August 2024 648 0 View

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity?

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity? What is the acceptable percentage of error (regardless of the metric)? Could you suggest...

03 August 2024 5,358 0 View

What should a Mechanical Engineering PhD scholar focus on during their PhD to enhance their chances of securing a postdoctoral position?

29 July 2024 7,714 4 View

May I know the exact Quartile of the journal- Advanced Engineering Materials (Wiley) for material science category?

In some data sources it has been grouped in Q1 and some shows it is Q2.

29 July 2024 4,227 2 View

Ternary in Electrical Engineering?

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28 July 2024 5,771 2 View

What topic or subject does Production Engineering need to address more?

Contemporary scores or innovations in scientific approaches. Hybrid methodologies, emerging themes and cross-cutting issues?

27 July 2024 648 3 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

What are solutions of Euler's hypergeometric diff. equation if $c- a - b$ is an integer ?

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25 July 2024 4,125 0 View

Can a shoot-through event of a tri-state digital buffer cause momentary Hi-Z state?

// interested in the difference between floating events and short circuits.

22 July 2024 6,565 0 View

Marcelo Eduardo Rojas Vidal

And the engine you use to move the pump is electric or internal combustion?

John Machell

This is what Wiki has to say about the disadvantages of compressed air engines.

https://en.wikipedia.org/wiki/Compressed_air_car

Here is another informative link

https://www.popularmechanics.com/cars/hybrid-electric/a5923/compressed-air-car-myth/

These articles focus on the negative aspects, but that should not dissuade you from continuing your efforts

John