Is there a good key for the larval stages of Hydropsychidae (Trichoptera: Insecta) of the Palearctic?

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How to measure precipitation in an isotherm experiment when the filter is not in powder form?

Hello everyone, I am conducting an isotherm/kinetics experiment to measure the capacity of a concrete filter/pervious concrete (a filter made of concrete) to remove heavy metals. My question is,...

07 October 2023 3,735 3 View

Why is SST model unable to predict reattachment length correctly?

Hello all, I'm doing a 2D simulation of flow beneath a partially-submerged rectangular bluff body. The problem's geometry is shown in the figure attached. I'm using a fully structured hexahedral...

10 August 2023 1,275 9 View

Is there any way to couple the Lattice Boltzmann Method (LBM) with the Particle Flow Code (PFC)?

Hello everyone, I am wondering if there is a way to couple the Particle Flow Code (PFC) and the Lattice Boltzmann Method (LBM) in order to implement LBM-DEM modeling. Any suggestions or insights...

12 July 2023 6,301 2 View

Polycrystalline monolayer mos2?

I want to know about the parameters for polycrystalline monolayer mos2? For example: eletron and hole lifetime,Nv300 and Nc300,me and mh.tunnel,Eg300?

06 July 2023 2,783 0 View

Python VS Java in COMSOL modeling automation?

I am wondering if there is any way to refresh the input data from a dynamic text file in COMSOL for each iteration. I have attempted to do this in Python, but COMSOL only solves the equation for...

25 April 2023 6,026 2 View

How to edit x-axis range in X Pert highscore plus?

Hi, I did a XRD analyses, and I wanna see it using X-Pert highscore plus. My x-axis was from 20-90 (2theta) when I was testing it, but the software is showing me from 5 to 75. The shape of the...

23 April 2023 2,372 3 View

Are there commercial FDA cleared/ IVD-assays for pyruvate kinase and glucose-6-phosphate dehydrogenase?

Obviously, there are several protocols out there how to measure PK and G6PDH, but are there any commercial FDA cleared/ IVD-assays off-the-shelf that may be used in a routine medical laboratory...

12 April 2023 6,038 0 View

Is there any way to define a parameter based on the coordinates?

Hello everyone. I have a question about COMSOL modelling. I am trying to assign some parameters in COMSOL based on the mesh coordinates. Is there any way in COMSOL to read the mesh coordinates,...

05 April 2023 3,141 3 View

Is it possible to solve PDEs for each CFD element COMSOL?

Hello, I wish to solve the weak N-S eq (based on PDE's) in COMSOL. By default, COMSOL applies the equation in all domain but I want to solve it in each mesh (not all domain). I want to do this in...

16 March 2023 2,792 3 View

How can I use N-S weak form PDEs in COMSOL (3D)?

I wish to use the weak form of Navier-Stokes eq in PDEs COMSOL. I divided the general form into 2 PDEs weak. (first for velocity and second for pressure) In 2D, the equations work great but in 3D,...

18 February 2023 2,424 1 View

Identification of aquatic(?) insect found in fountain with dead leaves?

Found this larva in a fountain filled with deciduous leaves in the Jura Moutains of Western Switzerland. Since there were also Trichoptera larvae (Stenophylax, or Micropterna, sequax) feeding on...

30 March 2024 5,350 4 View

Baseline values without Chilina sp....How can I replace it?

Hello good morning, I am trying to perform a stable isotope analysis. I want to standardize the food webs of 5 different lakes. For each of them I have a representative of the pelagic (Diplodon...

23 April 2023 586 0 View

Any suggestions for how to rear aquatic insect nymphs in a lab?

We will be collecting and keeping stonefly, caddisfly, and mayfly naiads. Thanks for any advice or recommended literature.

20 November 2019 7,020 3 View

Who lays eggs on the stone in the river?

I have found numerous eggs on the lower side of stone in fast flowing river section (Latvia, geographically central part of the Europe). What species lay these eggs? Ancylus fluviatilis...

01 January 2019 550 8 View

What could cause a drastic increase in Trichoptera abundance, and can anything be done about it?

I am researching Trichopterans that are developing in the Colorado River. For the past few years the population has reached nuicance levels that are having a negative economic effect for 5-6...

07 August 2016 1,577 4 View

Could anyone send dead adult moths/trichopterans?

Hi. We are analysing the external morphology of adult moths, so we would like to check as many specimens as possible, mainly pests. If possible, we would also like to compare them with...

05 June 2016 6,365 10 View

Can these given indices universally apply for studies?

Shannon-Weiner index Family Biotic Index, Ephemeroptera, Plecoptera, and Trichoptera (EPT) index Pollution tolerance index Ratio of EPT to Chironomidae and Taxa Richness Index.

02 March 2016 9,072 2 View

I am looking for formaldehyde or glutaraldehyde fixed Trichoptera and/or non-Ditrysian Lepidoptera larvae specimen. Has anyone samples for me?

I want to examine the internal anatomy of Trichoptera and non-Ditrysian Lepidoptera larvae. The genus or species does not matter much for the first examinations, but it would be beneficial to know...

24 February 2016 1,772 3 View

I am looking for formaldehyde or glutaraldehyde fixed Trichoptera and/or non-Ditrysian Lepidoptera larvae specimen. Has anyone samples for me?

I want to examine the internal anatomy of Trichoptera and non-Ditrysian Lepidoptera larvae. The genus or species does not matter much for the first examinations, but it would be beneficial to know...

01 February 2016 2,963 4 View

What is this caddisfly (Trichoptera) form? And is it really an indicator of freshwater quality?

I found this larvas near side of freswater located at North of Turkey (East of Blacksea Region) in spring 2014. So there are many of family and form of caddisfly. Is it possible to determine...

18 January 2015 6,023 17 View