How can I build one phylogenetic tree for an arthropod community when I had known their scientific names?

I am working on the phylogenetic analysis for communities of plants and arthropods. A standardized protocol of building phylogenetic tree for plant species list that was widely used in studies....

29 December 2020 181 3 View

Article of hierarchically structered porous nanofibers by electrospinning?

Hello folks I'm looking for the artice which shows difference of hierarchical structures between membranes and nanofibers. From introduction, I remember it kinda said: hierarchical membranes are...

15 September 2019 470 1 View

How to use mass-spec to detect covalent bonding of a dimer complex?

Hi all, I have a protein supposed to be around 20 kDa, but somehow on SDS-PAGE it runs at 40 kDa and previous literature also showed the same behavior and suggested a dimer complex. I am little...

30 July 2019 4,279 3 View

How to test the physical and chemical stability of solution or colloid?

How to characterize the stability of DMF ( N,N-Dimethylformamide ) or DMSO ( Dimethyl sulfoxide ) solution of Lead Iodide? Can you give me some advice or references? THANKS

06 June 2019 6,073 1 View

How to digest bacterial EPS at physiological temperature?

My bacterial biofilm tends to aggregate and agglutinate and I want to separate them at physiological temperature (25 - 30 C) in liquid. Any good suggestions of enzymes and preferably with...

28 January 2019 4,966 3 View

What is size of a rat hippocampus cell?

I am trying to building some microchannel devices currently to culture neurons, but I want to know the initial size(diameter) of the rat hippocampus cells (before they formed the axon and...

20 December 2017 4,748 3 View

A good way to analyze miRNA qpcr data when only 1 reference gene(it turns out unstable by genorm stability ranking across the samples) is included?

Dear all, I'm looking for a proper way to analyze my miRNA qpcr data. The study was aim to screen 10+ miRNAs which have been reported to have strong relationship with a certain disease in the...

13 February 2017 9,642 3 View

Complex permittivity at DC field?

The complex permittivity of a material is typically written as epsilon=epsilons+i*sigma/omega.(epsilons: the real part, sigma: conductivity, omega: angular frequency). As we know, any material has...

14 November 2016 1,951 5 View

How to dissolve DMBA in corn oil?

I want to dissolve DMBA in corn oil or sesame oil to oral feed the mouse to induce mammary tumor, according to many protocols published. But the question is how to dissolve DMBA in oil? Should...

17 July 2016 8,935 3 View

Convergence conditions of a stationary iteration method for linear systems?

Recently, I obtain a linear system, $Ax = b$, where $A$ is a nonsingular, strictly diagonally dominant $M$-matrix. Then I also got a matrix splitting $A = S - T$, where $S$ is also a nonsingular,...

27 June 2016 6,904 4 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to increase bacterial concentration of DNA from Laser capture microdissection samples?

I used laser capture microdissection, selected specific bacteria presented in ethanol-fixed slides. And DNA was extracted by Qiamp mini kit. The problem right now is we have pretty low...

09 February 2021 3,908 2 View

How to measure cosine, abbe, deadpath errors?

Dear sir, How to measure cosine, abbe, deadpath errors. I know cosine error, abbe error, deadpath error occurs in laser measurement. But how i can identify the cosine error value. Is any separate...

03 February 2021 4,878 4 View

How to apply graphene oxide on an gold electrode?

Dear Fellows, now it is the time to push graphene applications further in terms of easy and low cost production surroundings. Thus I recently dived in the materia and I am facing tons of papers,...

02 February 2021 6,284 2 View

How to measure beam radius over some distance in Lumerical fdtd (Collimation evaluation)?

31 January 2021 6,354 2 View

Which method is preferable for cutting the nanocomposites?

Which of the methods like water jet cutting, diamond cutting, laser cutting, etc. is more suitable to cut the carbon nanotubes reinforced epoxy composites into test sample to ensure the clean...

29 January 2021 1,354 5 View

Where is the active point of VCSEL?

I am now working on the coupling between vertical-cavity surface-emission laser(VCSEL) and waveguide. However, the window design for laser emission is larger than the waist of Gaussian beam...

27 January 2021 8,318 1 View

How can Plasmonic nanoparticles with different shapes be simulated using FDTD if they are imbedded in Organic solar cells ?

I need help on how can i simulate Organic solar cells with Plasmonic nanoparticles of different shapes using Lumerical FDTD . Is there any body familiar with such simulation and can share...

26 January 2021 4,188 3 View

Why transmission power drops with Lumerical FDTD simulation time?

Hello everyone, I am trying to design a ring resonator in FDTD. I simulated the design and found transmission power dropped by increasing simulation time. Once I increased the simulation time the...

21 January 2021 4,872 4 View