Dear Colleagues
Could someone share materials about basics concepts of topography?
Best Regards
Examples: satellite images from google, bing, mapbox, osm servers, available on qgis via xyz tiles. how do I know the date of bing images? availables in QGIS via .WMS, for example.
07 August 2019 978 4 View
What reference studies (Book, Article, Tesis etc) you know used ER Method was applied using the Vertical Electrical Survey (SEV) technique (Wenner-Schlumberger, dipole-dipole arrays) for...
07 August 2019 5,108 9 View
Belongs to Geology and Remote Sensing? What are the main references available for free (pdf) in this field of knowledge? Is it still a usual field within geology? Best Regards.
07 August 2019 3,992 12 View
What is the conceptual difference between Geological Map and Stratigraphic Map?
07 August 2019 2,107 26 View
Are Google images free to produce publishable scientific articles? Is it allowed to generate vector data from the interpretation of google images? How are google images cited in the bibliographic...
06 July 2019 2,245 10 View
The vadose zone is the first groundwater protection line, what are the main physical, chemical, biological and other elements capable of attenuating the potential contaminants released on the...
06 July 2019 8,036 3 View
What is the accuracy of these images regarding their geo-referencing and how accurate are they for their use of known sites with control points for geo-referencing?
05 June 2019 7,279 8 View
What is basic concept of aquifer system?
05 June 2019 8,359 19 View
What classical examples in the literature of contamination by agrochemical, herbicide, fungicide, insecticide and pesticide residues in groundwater in agriculture?
05 June 2019 986 27 View
Does anyone know how to indicate a free reference on free geotechnology? Which conceptually encompasses all free geotechnologies?
05 June 2019 8,209 11 View
effect of double bond on the flexibility of polymers
07 April 2021 0 0 View
I am writing to request some information for making polymer color flakes. I would appreciate the help.
17 March 2021 0 0 View
I looking for ferro calcium production process
03 March 2021 1,755 4 View
Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...
02 March 2021 4,119 3 View
As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...
01 March 2021 8,840 1 View
I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....
01 March 2021 3,325 2 View
I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...
28 February 2021 298 3 View
I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...
28 February 2021 2,004 3 View
I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...
28 February 2021 5,415 1 View
I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...
24 February 2021 3,823 2 View