How does a Bi-Static FMCW radar detect a Zero Doppler target?

27 September 2020 8,370 6 View

What is the best way to extract phenols from plants ?

What is the best way to extract phenols from plants ?What is the best way to extract phenols from plants without any loss

27 May 2020 9,005 17 View

Problem on reliability statistics - negative Cronbach's alpha?

In my study I want to see whether 3 items in a questionnaire relate to autonomy through a reliability analysis. The following three items are relevant I think: - Availability of task enrichment...

25 July 2018 3,223 2 View

What techniques can be used to locate fractures in underground metal water delivery pipes?

I recently met with an senior executive of a Water delivery company. #1 concern was the inability to locate leakage in underground mains pipes. Typically 40% of water is lost between source and...

24 May 2018 4,311 3 View

Would you like to participate in studies involving surgical outcomes, NSQIP, NIS, SEER, etc?

Seeking co-authors/collaborators to participate with me in database studies involving NSQIP, NIS, SEER, NAMC, etc. This is a good opportunity for post-docs and research fellows who can work...

04 November 2017 6,424 2 View

I am using simply P total RNA extraction kit (Bioflux, china) to extract total RNA from tissue sample do it require addition of mercaptoethanol

Does it require addition of lysis buffer or mercaptoethanol before homogenization or it's included in components of the kit reagents?!

03 August 2017 2,599 4 View

How many kinds of distance defined on graph in graph theory?

04 April 2017 4,384 13 View

How can I dissolve sodium palmitates in pure ethanol?

18 June 2016 784 3 View

Cell size units in point to raster?

I have metadata in my .dat file that tells me that my cell size is 0.200 degrees longitude. I want to import this file into GIS and convert my points to raster. My file is very simple: it has x, y...

29 September 2015 7,692 3 View

How can we assess the amount of sand available in a river and a lake?

What are the measures to be taken for controlled sand mining. Excess sand mining has become a big problem due to rapid urbanisation and development. Uncontrolled sand mining has now resulted in...

30 January 2014 5,444 1 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

No title

03 March 2021 5,360 2 View

How can we raise the figure when we writing a paper with Latex ?

Hi, everyone. I'm a starter to write a paper by Latex. But I have some difficulty using it. I'm writing the paper with 2 columns. And, there is one figure that occupies the 2 both-sides. I want to...

26 February 2021 3,738 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Compute for the total volume of concrete needed for the concrete pouring of the foundation including its column up to NGL only as shown in the plan?

Looking for the quantity of cement, sand, and gravel of footings and columns. Thank you!

25 February 2021 3,092 2 View

No amplification data for qPCR on MxPro?

I have set up a qPCR run on MxPro with SYBR green and ROX as a reference, however, when I go to the analysis section the program seems to only collect data for the dissociation curves and not the...

25 February 2021 8,039 1 View

Can I use TCA instead of TFA for protein analyis in RP-HPLC?

I am trying to analyze lipase using the reverse phase-HPLC C18 column. In the literature, 0.1 % TFA was and 60% ACN was used. Can I use TCA in place of TFA? If any other methods are available to...

25 February 2021 2,388 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

My silica gel column dried can I somehoe save the trapped matter?

I tried to separate my substance from a protein in a sillica gel column. By mistake, it dried and cracked. Can I save the trapped substance? Can I repack it ,or at least elute all of the trapped...

22 February 2021 1,789 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View