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

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

What are the definitions of "punctuate pattern" and "punctate pattern" used when interpreting imaging results?

09 May 2016 5,580 4 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

How to calculate battery consumption for IoT device?

Hi, everyone I'm working on a privacy-preserving algorithm that will apply to IoT devices. So, I need to measure the power consumption by implementing this algorithm. Any suggestion, advice,...

25 February 2021 8,749 6 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to realize refractive index values of 1 to 1.1?

Hello researchers! While studying the literature on refractive index sensors, most of the articles simulate their devices with a refractive index ranging from 1 to 1.1, with small steps in...

17 February 2021 1,578 4 View

How to get better phase shift in C-V curves for ferroelectric devices?

I tried to sweep my ferroelectric devices from -2V to 2V and then from 2V to -2V and The two hysteresis peaks are off by several microFarads. Should i increase bias voltage? I am doing these...

16 February 2021 8,514 2 View

Room Occupancy Calculation ?

15 February 2021 1,997 6 View

What are the popular techniques for pre-processing measurement data in Smart Grid/Power System?

The data collected from various measurement devices often contains erroneous values - such as noise, missing values, etc. What are the popular techniques for pre-processing measurement data in...

14 February 2021 4,642 2 View