How does the N value be counted for gut content analysis?

I read some articles on mollusc and fish diet analysis. The formula for percentage frequency of occurrence stated above: %F0 = Nei/Ne x 100 and percentage numerical abundance : %NI : Ni/N x...

15 October 2020 4,568 3 View

Why is it necessary to vortex and incubate in dark the sample and DPPH solution and other DPPH questions?

Hi all, In the determination of Antioxidant capacity of fruit samples, I used DPPH assay and have a few questions regarding the DPPH assay 1) why is it necessary to vortex and incubate in dark...

30 August 2020 246 3 View

How to renew the Scopus index status of a journal?

Dear Researchers, Our journal (ISSN no. 2070-4658) was part of the Scopus index till 2017. Now, it is not in the Scopus index as the last two years no issue has been published. However, the...

24 August 2020 7,203 3 View

Hello,i extract my plants using rotary evaporator and i got crude extract.How should dilute it?i have no idea on how to dilute it?Can someone helpme?

dilute it in ethanol or dmso? which solution is better as i used 95% of ethanol as my extraction solvent?

23 March 2020 5,971 6 View

Can I set "20 uL reaction volume" in PCR cycler machine, while my actual sample is only 10 or 15 uL?

This is a stupid but quite technical question. We have a PCR machine that has 20 uL minimum reaction, so it can't be set into 15 or 10 uL in the machine. Is this going to affect the result...

22 March 2020 3,497 4 View

Is there any SOP to measure pharmaceutical clean room and if none can we develop our own method to measure the room size?

06 March 2020 866 1 View

How to test degree of polymerisation of aged kraft paper impregnated in oil?

kraft paper was impregnated in mineral oil at different temperatures and duration. my project is to get the DP value at different duration. in order to be measured by viscometer, the sample must...

20 January 2020 2,234 3 View

What is the equation to explain how one possible organic side product is formed in the synthesis of 1-bromobutane?

And show the chemical properties window of this side product. Explain how this product can be separated from the desired product. I have already identified that the possible organic side products...

29 December 2019 6,170 4 View

Validation for Intracerebroventricular Microinjection of Streptozotocin in Rats?

Hi, I'm planning to induce sporadic Alzheimer's disease (AD) in male Sprague Dawley rats (3 months old, 270-350g) through bilateral intracerebroventricular microinjection of 3 mg/kg streptozotocin...

25 November 2019 9,723 3 View

What is the meaning of negative activation energy?

I am prepared (Al, Co) co-doped TiO2 thin films by spray pyrolysis technique. The electrical measurement was performed by the four-probe point method, in the range of temperature 3ok (Room...

22 October 2019 526 4 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 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

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 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

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

How to properly calculate Interfacial area density in a porous domain?which are possible value for glass fiber?

I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...

23 February 2021 6,043 1 View

Model Volume fraction and magnetic field applications of nanofluids in ANSYS?

Hi I am working recently on a project where I have to study how the thermal properties or heat transfer enhancement of nanofluids as the volume fraction changes, or if a magnetic field is applied...

22 February 2021 961 2 View

Help with assigning pressure boundary conditions in FLUENT on a large structure?

Hello, I created a very tall tower (>1000m) and applied pressure boundary conditions at the inlet (bottom) and outlet (top) that correspond to the pressure are their relative altitudes....

22 February 2021 9,972 4 View