What may be the possible reasons for getting a Ct value in case of non template control during qRT PCR?

In my lab we carried out qRT PCR for checking the efficiency of the primers. The results came fine for dilutions, unfortunately for non template control also we got good expressions. Inorder to...

14 January 2021 9,425 5 View

Could u help with different techniques installed across the world to prevent jelly fish ingress problems in sea water intake syts desalination plant?

jelly fish ingress is a major problem affecting the sea water intake systems leading to plant outages in power plants and desalination plants. can anyone through some insight on installed and...

15 December 2020 6,643 4 View

What stage of the rice plants is ideal for rhizosphere soil sampling?

I want to isolate PGPR from rice rhizosphere (flooded conditions). Not sure when to collect samples. Concentrating on acidic soils of South India. The seeds are being sown now for the second...

27 May 2020 9,516 1 View

Which Zeolite can be prepared under atmospheric pressure without using any template?

Which Zeolites can be prepared under atmospheric pressure without using any template (organic or other) using only aluminium source and silica source ?

24 December 2019 6,356 3 View

Why is there a change in EFL measurement in liquid medium?

Hello Everyone, This is regarding the EFL change of a biconvex lens. Can someone explain to me the reason for a change in the measurement of a boconvex lens in water when measured with a time gap...

07 August 2019 7,610 1 View

What is the effect of Si/Al ratio on behavior of Portland cement concrete or high performance concretes (NOT on Geopolymer Concrete)?

It is a known fact that the Si/Al ratio of the cementitious matrix influences the behavior of the geopolymer concrete. However, I would like to know about the effect of the Si/Al ratio of the...

21 May 2019 8,082 7 View

Dissappearing peaks in rietveld refinement?

I've been trying to obtain the cell parameters of CeVO4 and SmVO4 from rietveld refinement of XRD data. However the peaks seem to disappear after refining U, V, W parameters in Full-Prof software...

11 April 2019 7,377 3 View

How to identify optically thin Cirrus Clouds in historical satellite images acquired with Passive Remote Sensing satellite sensors?

Unlike Optically thick clouds, Cirrus Clouds are thin, high altitude clouds formed in the upper troposphere layer of the Earth's Atmosphere. These Cirrus Clouds are not easily identifiable in the...

23 March 2019 1,765 3 View

How to do coulomb counting in lead acid battery to estimate Soc?

I am doing a project based on demand side management of DC grid system by Soc of battery. Currently I am stuck in Soc estimation practically in lab using coulomb counting. Does anybody knows,...

19 March 2019 702 3 View

Low Chronbach's alpha. Reason?

I have translated a questionnaire for research purposes and in spss, the internal consistency reliability is coming low. The original questionnaire has good reliability. what could be the reason...

20 October 2018 442 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Which vial septa the right one to be used for HPLC?

This is the unanswered question stored very long in my mind and till now I could not find a right answer. Google search educated me that the red surface is the PTFE material compatible to wider...

21 February 2021 546 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View

How do I collect online measures in a same-different task?

The same-different task requires to subjects to indicate whether a pair of stimuli seen or heard are the same (say AA or BB) or different (say AB or BA). Researchers often collect offline measures...

20 February 2021 9,226 2 View