The best portable recorders for studying temperature changes in snowpacks?

What are the best loggers for obtaining changes in snow cover temperature at different depths with changes in air temperature? What are the long-term data loggers without recharging? What loggers...

17 November 2020 5,319 5 View

Suitable channel model and beamforming technique for high band 5G?

Hello everyone, I want to simulate traffic in MATLAB between a multiple antenna base station and a single antenna user for mm-wave frequency of 28GHz. What is the most suitable channel model for...

20 March 2020 8,156 4 View

I want to use a Dialetric resonator antenna to measure magnetic fields, but how can I reduce the ambient noise from the environment?

I'm working on a project to do sense magnetic fields in 100 nano tesla range, and I don't know how we could reduce ambient noise without shielding. - Artificial magnetic fields could be one way...

03 July 2019 8,808 3 View

How to export chromatograms and spectra from diode array detector data?

The DAD data are collected into a .run file during an HPLC run followed by a Varian Prostar 335 detector. The file cannot be merely opened via a notepad and the question is how to extract all the...

04 April 2019 9,649 3 View

Why can a protein elute from a SEC column (@150 mM NaCl) later than expected for its monomer?

Theoretical mass is 25 kDa, SDS-PAGE shows 26 kDa, no presence of degradation products. The SEC profile shows the major, very symmetrical peak at ~20 kDa. Why could this be? Unspecific interaction...

28 August 2016 2,007 16 View

Why do we need a "Smart Robot" to be used for recipes development and controlling performance?

We are discussing here intensive quenching processes: IQ-2 and IQ-3 technologies. The IQ-2 technology requires the duration of transient nucleate boiling process evaluation during batch quenching....

07 July 2015 6,143 5 View

What are the main differences between steady - state and transient nucleate boiling processes?

I'm wondering whether we can use heat transfer coefficients (HTCs) received for steady - state nucleate boiling condition to calculate temperature fields in steel parts during transient nucleate...

28 January 2015 1,475 11 View

Why engineers instead of real HTCs use effective HTCs during boiling?

17 December 2014 7,955 4 View

What is the original/up-to-date technique used for intensifying quenching of machine components based on transient nucleate boiling processes?

In metallurgy the effective heat transfer coefficients (HTCs) of transient nucleate boiling processes are used which are ten times less as compared with the real HTCs. The original technique for...

11 October 2014 2,050 2 View

Who is interested to investigate further the self - regulated thermal process and the super- strengthening phenomenon?

During the self- regulated thermal process, the surface temperature of quenched steel parts maintains at the level of boiling point of liquid. That can be used to monitor phase transformation in...

13 February 2014 652 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How can we calculate the sample size for rodents for a particular period of time?

How can we calculate the sample size for rodents for a study for one year? Are there any specific protocols to be followed for designing rodent sampling? How long should be the sampling interval...

01 March 2021 1,056 3 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 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

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View