The keys benefited from an unpublished key written by Dr. James Hardin and from keys presented by Brown and Brown (1972: Woody plants of Maryland, Port City Press) and Preston and Wright (1988: Identification of Southeastern Trees in Winter, NC Agr. Exp. Sta. AG-42). Nomenclature and taxonomic concepts follow Weakley (2010: Flora of the southern and mid-Atlantic states). A list of excluded species is included in the app. Images were captured by Dr. Jon Stucky and Dr. Alexander Krings, with additional contributions by Will Cook (Duke University), Dr. Paul G. Davison (University of North Alabama), and Jeffrey Pippen (Duke University).
Initial ribbons support (no sheets yet)
Check the server news for HOWTOs and explanations.
Contribute your molecules to the library (share button) and enter our contributor ranking!
Please report any problems via mail! :-)
### NEXT ###
Complete ribbons support
The Atomdroid app is a computational chemistry tool for the Android platform. It can be used as a molecular viewer/builder and contains local optimization and Monte Carlo simulation features. Install now and experience mobile computational chemistry!
List of features:
* molecular viewing (compatible with xyz and pdb files)
* trajectory analysis and viewing
* molecular building (export to xyz)
* PDB downloader (requires the Internet permission, downloads compressed pdb to save on your data plan)
* Atomdroid molecular libraries (requires the Internet permission)
* local optimization (L-BFGS and Powell algorithms)
* Monte Carlo simulation and analysis
* Global optimization using a Monte Carlo with minimizations approach
* Universal Force Field (UFF) implementation (currently without electrostatics)
* communication with other Atomdroid users via bluetooth and share your molecules (requires bluetooth permission, we are VERY cautious with using it)
Future versions will contain:
* more force field implementations (including analytical gradients)
* molecular dynamics engine
* and more...
The application is currently in beta state. Please report any bugs to email@example.com, we will be pleased to solve them quickly.
Support for Atomdroid molecular libraries: If you want to create your own library (e.g. for courses) let us know via mail and we provide you with the necessary tools and information free of charge!
- Number of Kjeldahl Tablets (or weight of powder)
- Volume of sulfuric acid
- Volume of water for dilution
- Volume of sodium hydroxide for alkalization
- Titrant consumption for blanks
- Titrant consumption for the sample
- Calculated nitrogen amount per sample tube
It also contains helpful information to other parameters such as the digestion and distillation time, pH and volume of the boric acid and the steam power.
The calculation is based on manifold process inputs. Tables, graphs, tips and literature references help to understand the theoretical background but also the practical consequences of the following actions:
- Boric acid concentration
- Sample tube size
- Type of distillation (direct vs. standard Kjeldahl)
- Type of catalyst (Tablet type vs. powder)
- Titrant normality
- Sample type and amount
This free app will provide you with the following:
Health news and updates,
What is in your drinking water,
Bottled vs Tap water which is healthier,
Videos and much more.
This app will specifically help you better
understand what is in your water, why water is so vital to our health and tips on improving your health.
Click the install button now and download this app for Free!