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Questions related to Heat
Is there any other method for SA stock preparation
16 January 2020 6,631 4 View
GA3 is added for germinating seeds in-vitro but should it be added before or after autoclaving
16 January 2020 2,391 7 View
Hi. Thank you for looking into my question. I have designed specific structures that need two layer of photoresist. The first layer is planned to be dual-tone negative and the second layer to be...
16 January 2020 5,079 3 View
I sorted human PBMC, then washed the cells and stored at -80C as dry cell pellet last year. This year, I pulled out the dry cell pellet from freezer and lysed with in-house lysis buffer. The...
16 January 2020 3,103 0 View
Why does polyethylene glycol derivatives in the presence of strong bases (sodium methoxide, potasium ter-butoxide, etc.) and heat (80-100 ° C) change color (colorless to yellow-brown)? And if the...
13 January 2020 2,629 2 View
Extracting total protein from plant leaf and used a protocol where the lysis buffer is 10%TCA in acetone w/ 0.007g DTT added. The pellet was then re-suspended in acetone and DTT. This also was the...
12 January 2020 6,331 3 View
I wonder for some time if the following calculation is wrong or if it gives the right impression. Methane is on a 100 year timescale about 28 times stronger than CO2 and on 20 years even about...
05 January 2020 6,738 4 View
we are working on the simulation of Supercritical CO2 fluid in a heat exchanger application. Whether the user-defined function to be used or REFPROP call function in Fluent is sufficient. The...
25 December 2019 4,599 1 View
I have the raw data of cured epoxy composite samples which had undergone a DSC test. However, from my findings from the literature, I seem not to have the right information such as heat of...
23 December 2019 5,027 3 View
Hello! I'm using az 4620 as my PR. Usually, it is cured at 110 degree celsius under heating for 80 seconds. I know that, but I have to heat it at 300 degree celsius for 25 hours. I can't erase PR...
23 December 2019 9,476 1 View
I m using Hec-Hms Snowmelt module based on temperature index. I would like to know what is the exact formulation used by Hec-Hms,? does heat brought by rain is included? if yes how? Thanks,
19 December 2019 7,329 3 View
I am trying to find a way to control relative humudity so that I can use same experimental conditions.
18 December 2019 6,002 4 View
I am looking for a heat exchanger type that can be use to extract heat from exhaust gas @200-300 degree celsius. Kindly suggest some heat exchanger types.Currently i ma planning to use Finned Tube...
16 December 2019 6,553 6 View
Currently, I am working with JM of E.coli as competent cells ( from -80Co)for transformarion with pET29c. In my last trasformation I left the cells for 2 minutes instead of 45",accidentally.Will...
10 December 2019 6,307 2 View
Air bags are an example, but the process involves heat. Can it be processed without the engagement of the heating stage?
02 December 2019 573 6 View
When designing a heat exchanging with a mixture of gas that moves from 900 degrees Celsius to 270 degrees Celsius, how to I account for the temperature change?
27 November 2019 5,201 2 View
Under identical test conditions, does Tg measured using DSC shift between the first heat and second heat? What causes such a shift? Size, shape and weight, rate of heating, etc affect Tg. What...
24 November 2019 9,428 0 View
There is a client who has 4 CW pumps (~150kW each) in parallel and running on VFD drive Motor, and wants to add a pump with VFD drive motor as a spare. Wanted to know if we have a existing DOL...
19 November 2019 770 2 View
The question comes up with a mixture of aluminium powder and steam is to be modelled thermodynamically. So that I assume based on the thermal conduction of aluminium some of the heat is...
17 November 2019 3,212 4 View
There is an exception in deserts. 'otherwise in absence of sun we experience warmth in summers . in presence of sun also we experience chills at winters.
11 November 2019 5,566 16 View
Can one convert it to viscous form by melting PLA and use it as resin
09 November 2019 9,220 2 View
I am working on modelling of moving point heat source in comsol for heating a hemispherical cavity. I want to define the path of the point heat source as a helix with variable radius and constant...
21 October 2019 5,087 0 View
I heated C14-C16 based PCM materials at 142 Degree C for a few hours, I observed that carbon formed over the PCM materials. The boiling point of the PCM materials is around 310 Deg C. Anybody can...
21 October 2019 9,994 0 View
Hi all, I am trying to isolate DNA from Mtb and I have been following two protocols: 1 ml liquid culture, spin and discard supernatent, dissolve pellet in 1X TE, heat at 80 degree Celsius for 15...
17 October 2019 2,434 2 View