What is the difference between a shared aperture antenna and a dual band antenna?

Can the dual-band antenna be called as a shared aperture antenna? Difference between shared aperture antennas and dual-band antennas?

30 December 2020 7,118 4 View

How to make a standard curve for qpcr?

Hi there, I am working on airborne microbes. I want to know the concentration of bacteria in my sample before I go for NGS. Since it is an environmental sample it might have a lot of mixed...

17 November 2020 314 3 View

How to cluster the ORF sequences?

Hi, I have found the ORF region of my nucleotide sequence which was obtained from Sanger sequencing using 16s universal primer. I have to cluster them before using them in my model. I am using...

13 August 2020 1,079 4 View

ARIMA with Sliding window?

I have 245 daily stock returns with some explanatory variables. I will compare the ARIMA and ARIMAX models with some basic machine learning techniques. The training periods will be 30, 60, 90, 120...

09 August 2020 9,344 1 View

Difference between point source, line source and plane wave excitation in FDTD?

Excitation in FDTD could be point source, line source and plane wave. What is the difference between the three? Also which type of source could be used for various applications like antenna,...

08 May 2019 4,691 4 View

How to display a 3 Dimensional matrix by their values in Matlab?For example if x is a matrix of size 20x15x6.How to visualize the structure in MATLAB?

For example to model a microstrip patch using FDTD. The 3D array would be of size MxNXP. How to pictorically represent the structure using MATLAB?

08 January 2019 6,765 4 View

What are the alternatives to TexGen, textile geometry modelling software?

I have been using TexGen for sometime now and I need to create layers of textile in different orientations and I haven't found a way to do it in texgen. Are there other softwares that are good for...

24 May 2018 9,506 4 View

Do plants have similar PI3K-Akt signaling pathway?

30 September 2017 1,052 1 View

How can I draw dot plot (Column scatter graphs) for different groups and denote comparisons?

How to draw dot plot for different groups and denote comparisons ? (See attached images) If there is a procedure in SPSS/ Excel or if there is any free user friendly online S/W guide me. Thank you

22 June 2016 7,644 8 View

Where can I find Vernonia oil (seed oil)?

21 May 2016 6,230 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

Can you perform the Murexide test on samples fixed in Formalin?

I have a fixed sample and would like to use the murexide reaction to test for uric acid composition. I no longer have fresh samples

22 February 2021 1,328 1 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View