vtechworks | DSpace at Virginia Tech | Awesome List library
kandi X-RAY | vtechworks Summary
kandi X-RAY | vtechworks Summary
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Top functions reviewed by kandi - BETA
- Build the Solr input document .
- Prints out the bitstreams .
- This method is called when a document is being ingested .
- Create the METS manifest .
- Run a CSV import .
- Converts a PubmedDom Document to a Record
- Process an update item .
- Enables or disables facets for the given scope .
- Populates feed .
- Process a collection Edit collection .
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Trending Discussions on vtechworks
QUESTION
I am attempting to implement equation 16 from this paper:
Equation 16 above is the viscous wave equation, and it is supposed to start big and die out over time, eventually approaching 0. However when I run my simulation it seems to blow up. If you look at the images below (iterations 0-4) it appears to be working correctly (i.e. the sinusoidal wave appears to be getting smaller, which is good). However, at ierations 5,6 and beyond it starts to blow up (you can see the y-axis representing pressure increasing by orders of magnitude).
Here is the output:
Here is the code that uses Finite Difference Method:
...ANSWER
Answered 2020-Jun-22 at 15:54You implemented a numerical solver for a linear (no product terms of p) partial differential equation that seems to work for a number of time steps, and then explodes with rapid oscillations.
What happens mathematically is that your discretized system of equations has solutions that grow exponentially over time. Numerical noise at the least significant digits of your floating-point numbers will grow exponentially until it takes over the solution that you're looking for.
If P
is a vector (array of 2N values) consisting of the N
pressure values at the current and previous time steps, all the adding and subtracting of values in your code can be rewritten in matrix form (representing one time step):
QUESTION
I was hoping someone could help me write a Python function to detect any fonts in the file which are not embedded in the file. I've attempted to use the script linked here, and it can detect the documents fonts, but it does not detect fonts which are embedded. I've pasted the script below for convenience:
...ANSWER
Answered 2020-Mar-27 at 23:11The issue is that this script does not handle lists. For example in the Google Docs example, in the PDF object, you see this structure:
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