How to Open a aedt File in HFSS 15.0 ?

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Negative Gain in Multi-Band Frequency-Reconfigurable Antenna ?

I've successfully designed a multi-band frequency-reconfigurable antenna. However, after simulation, I found that the gain is negative. Considering that I'm using a lumped port, where exactly...

04 May 2024 6,027 4 View

Identification request (Mites), what order??

Please I want to know the right identification of the mites apparing in the following pictures; and if you can recommend the better scientific ressourse for mite's identification :

14 November 2022 9,203 4 View

In which dose we have to calculate the LT50 ?

We effectuated an experiment about insecticidal activity and we have calculated the LC50 and LC90 in all the times, now we want to calculate the LT50 and LT90, so which dose we have to choose to...

01 September 2022 3,302 9 View

When we test a larvicidal activity on mosquito larvae, on what base we have to choose the species?

Hello everyone, I want to asses the larvicidal activity of a product on mosquito larvae, however, I don't know if the selection of the species to test the product has importance, and if there is a...

06 May 2019 7,202 13 View

I want to identify these larvae that I found sharing habitat with mosquito larvae?

I found this larva when doing mosquito sampling, I thoutgh for the first time that it is an Anopheles larva but it is not.

14 November 2018 3,284 2 View

What explains the pairwise distance value???

what is the explanation when we find 100% of similarity between two speicies in the blast test then we find 57.5 % of pairwise distance between the same two spicies??

10 February 2018 524 7 View

Heap of worms or larvae at the surface of water, what is that?

please I found things thay sesms like mosquito eggs at the first glance but when I looked hard they seems like smal worms they stay at the surface of water and they gather in groups I would like...

30 December 2017 3,812 9 View

Can someone advise on where to start with NLTK LiB SVM, text classifications?

I need to classify any tweets by topics (sports, politics, religion and tech), but I don't know how can I load my data (I use format txt, and 20newsgroups data) for training, and NLTK for...

11 April 2014 7,906 3 View

Request publication/book

hello all please i need the following reference that i can't find in any web site #Principles of Quantitative Electron Probe Microanalysis (EPMA) in Geology. K. T. M. Johnson and J. W. Winchester....

01 January 1970 8,391 3 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

RNA later for the preservation of RNA in fecal samples at room temperature for one day (37°C)?

I am planning to collect human fecal samples for metatranscriptomic analysis using MGI. These samples are from indigenous people living in a region with high temperatures. I will have access to a...

06 August 2024 1,367 3 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

Is it necessary to covary exogenous constructs in a structural model?

I am working on a SEM model where i have 7 latent variables (6 exogenous and 1 endogenous). In AMOS when I co-vary the exogenous constructs, only 2 paths are coming significant out of 6. But when...

03 August 2024 6,028 4 View

What do you consider to be the most relevant elements of EEG for studying cognitive biases?

I've seen articles that primarily focus on alpha and beta activity in the frontal regions, but these studies often compare healthy subjects with those having various pathologies. I haven't seen a...

31 July 2024 7,259 1 View

In SEM, if a latent variable consists of three observed variables, and each observed variable has four items, what should I do?

Suppose I am studying the construct of "Academic Motivation" (latent variable) in students, which is measured through three observed variables: "Intrinsic Motivation," "Extrinsic Motivation," and...

31 July 2024 3,913 6 View

How to improve peaks separation in HPLC?

Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...

30 July 2024 435 3 View