Hydrostatic testing of porous assemblies

Pores of the material were plugged with dust particles suspended in water. The plugging material used was a standard test dust prepared as a slurry in distilled water. This technique provides a permanent high-integrity seal for porous material without affecting its physical properties, yet permitting pressure testing to verify structural adequacy

The Commerce Clause and Criminal Law

The ongoing expansion of federal criminal law undermines the historical decentralization of criminal law in this country by usurping state authority in that area. While some protection of federalism is necessitated by the Supreme Court\u27s commerce power jurisprudence, the economic/non-economic distinction enunciated in United States v. Lopez is an unworkable return to past efforts to find internal limits to the Commerce Clause. Instead, a return to the test of National League of Cities v. Usery---yiewing the Tenth Amendment as an external limit on the scope of Congress\u27s Commerce Clause authority— is the best means of protecting the authority of the states to make and enforce criminal law

Alien Registration- Bigelow, Clara L. (Auburn, Androscoggin County)

https://digitalmaine.com/alien_docs/30965/thumbnail.jp

Latent Semantic Indexing in the Discovery of Cyber-bullying in Online Text

The rise in the use of social media and particularly the rise of adolescent use has led to a new means of bullying. Cyber-bullying has proven consequential to youth internet users causing a need for a response. In order to effectively stop this problem we need a verified method of detecting cyber-bullying in online text; we aim to find that method. For this project we look at thirteen thousand labeled posts from Formspring and create a bank of words used in the posts. First the posts are cleaned up by taking out punctuation, normalizing emoticons, and removing high and low frequency words. Due to the nature of online text many of the words are misspelled either purposefully or unintentionally so a spell check software is used to check the vocabulary, ensuring spelling variations are accounted for. Using this word bank we create a term by document matrix with each post being its own document. By implementing Latent Semantic Indexing (LSI) a query can be placed to the matrix for posts that could have cyber-bullying content. Then the algorithm is trained by adjusting our methods to clean posts and revising spelling corrections for particular repetitive words. With an established approach to pruning the word bank we test our LSI algorithm on other data sets

Toward Analog Quantum Computing: Simulating Designer Atomic Systems

We use a magneto-optical trap to cool rubidium atoms to temperatures in the µK range. On the µs timescales of our experiment, the atoms are moving slowly enough that they appear stationary. We then excite them to a Rydberg state, where the outer electron is loosely bound. In these high energy states, the atoms can exchange energy with each other. Since the energy exchange depends on the separation and the relative orientation of the atoms, we can potentially control their interactions by controlling the spatial arrangements of the atoms. We model this system using simulations on a supercomputer and look for opportunities to control the energy exchange by manipulating the geometry. We present results that could be applicable for quantum information processing