Can any one explain why the ethyl ester Biodiesel (FAEE) has higher than that of the metyl ester FAME- both of them are derived from the same oil?

Biodiesels derived from waste vegetable oil transesterification with Ethanol (FAEE) show higher peroxide values than those derived by transesterification with methanol (FAME) prepared under the...

13 February 2021 193 6 View

What about the protocol used for president Trump for treating COVID-19?

The protocol used in managing COVID-19 for Mr. president Trump containing: Regenerons poly-clonal antibody cocktail Zinc Vit. D Fomatidine Melatonin Aspirin what are the differences and...

09 October 2020 7,623 3 View

Dose BCG and Chicken pox vaccine had a role in management or prevention of COVID 19?

Is there a relation between people whom take BCG and chicken pox vaccine in pandemic of COVID 19 or any change in management of it or prognosis?

27 April 2020 4,313 9 View

Is it possible to hygienically turn diapers, ladies' higienic towels, and soiled toilet paper into heating oil for boilers or diesel-like fuel?

Is it possible to hygienically turn diapers, ladies' higienic towels, and soiled toilet paper into diesel-likefuel or heating oil for boilers ? I beleive that by pyrolysis of dried or not dries...

28 March 2020 7,254 4 View

What is DNA sequencing ?

What is DNA sequencing ? DNA has the code for a person. The code comes from the father and the mother. But how can we read this code?

17 March 2020 9,364 5 View

What means Lewis number ?

Lewis number in heat transfer

24 December 2018 7,379 10 View

Excuse me please , i need to know how can i calculate the Nusselt number in partitioned triangular enclosures?

My research about calculation the natural heat transfer through triangular enclosure with partitions numerically and i need to calculate the Nusselt number for it

17 December 2018 6,805 3 View

What is the effect of climate change on global water resources and world's agriculture?

It has been reported that climate change has drifted from its norm in an unprecedented manner since the 1950s. What is the effect of such a climate change on global water resources and world's...

28 December 2017 4,481 17 View

How to Calculate Cell Potential for SOFC ?

Hi...i am calculating Cell Potential for SOFC but i have a problem to find partial pressure for H2, O2 H2O is there design point for fuel composition,so can i start with it to find molar fraction...

06 July 2016 1,286 5 View

How does fermenting yeast behave with sudden change of temperature?

In a sugar fermentation process at a constant temperature (say at 30 C) if the bottom end is connected with a hot tube (say at 50 C) allowing the solution to drip slowly. Would the yeast swim away...

25 February 2014 3,673 1 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 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 anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 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

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View