Is this a hornworm - and which one?

In east china in found this hornworm on a small way near maize fields? Can you identify it? May it be the armyworm, Spodoptera frugiperda ? More pics...

10 November 2017 7,577 2 View

Store in alpine regions - pastures or forests - more water?

Store in alpine regions - pastures or forests - more water? There is a new study that in the Alps of Austria/Italy pastures are better to prevent climate change by drought. The synopsis is: If...

10 November 2017 5,231 0 View

Are cathions or anions more resonsible for the biological toxicity of salts?

I think on glyphosate, which is used in different formulations of salts. There are mostly this glyphosate salts used: isopropylamine salt (IPA)diammonium saltdimethylammonium saltethanolamine...

06 July 2017 1,879 2 View

Is testing botanical plant seeds biodiversity of soils with genetic markers for plant identification a good idea?

For finding the potential alpha-biodiversity of botanical plant biodiversity of soils as well as agronomical weed infestination, would it be a good idea to count/test in the soil living seeds with...

06 July 2016 170 3 View

Are here also questions of policy and politics possible?

06 July 2016 7,114 0 View

Arrhenatherum elatius (Glatthafer, tall oat-grass): where is it used, sawn or cultivated significantly?

Exists countries, outside of Austria where the meadow and crop grass Arrhenatherum elatius (D: Glatthafer, E: false oat-grass, tall oat-grass, tall meadow oat, onion couch and tuber oat-grass, F:...

05 June 2016 3,123 2 View

CHIA (Salvia hispanica): How are the market chances for CHIA?

Chia is a novel food for breakfast, bread etc and rich in omaga 3 fat acids. Do you see the demand is given for new plantations and a chance for developing countries? Which are the best countries...

05 June 2016 7,044 3 View

Which skin color had the first human creatures?

Had they mainly a black skin or was it more white or even red or other?I just heard that a man of Ghana explaining that the frist people had a black color. I know the more ancient pygmy people...

31 December 2014 4,471 1 View

Do you think there is a turning or tipping point in human life that habits or rituals could become a psychosocial barrier or even a fetter?

Are not habits or rituals are often important helpers for a happy and stabile living especially for disabled persons? And yet in some ways human habits change to a fetter. When and where is the...

31 December 2014 2,230 2 View

How would you test the mechanical density of a grass sward?

10 November 2014 8,300 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

How can the modification of garden soil cause global warming?

Hello, I am working on a soil project and I found a primary research article that tests how the modification of agricultural soil can cause global warming, using a thermal collector, however I...

02 March 2021 7,161 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

No streamlines present in a small region inside a flow. This means exactly what?

No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...

22 February 2021 5,249 10 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View

How to use Remote sensing and GIS applications for mapping the available medicinal plants within the locality/municipality?

Hello, I'm very interested in mapping and managing the conservation of the Philippine traditional medicinal plants, in which I think is very helpful in the field of medicine for further analysis...

21 February 2021 374 5 View

Can anyone help with an Accurate Diffuser Expansion Loss formula for rectangular shaped diffusers in turbulent flow regime?

I have tried Idelchik's Handbook of Hydraulic Resistance 4th Edition (2007 page 300) formulas and across some range the formulas are reported valid for, the law of conservation of energy is...

20 February 2021 2,504 1 View