Zeolite phi: a physical mixture of chabazite and offretite

Zeolite Phi is synthesized by two methods reported previously. Results from X-ray powder diffraction and scanning electron microscopy suggest that the materials are physical mixtures of chabazite and offretite; one sample has a small amount of phillipsite. The X-ray powder diffraction data from these samples, and those reported previously, are indexed and their unit-cell parameters compare well to those obtained from a physical mixture of chabazite and offretite. These samples show multiple particle morphologies that are indicative of physical mixtures. Zeolite Phi is concluded to be a physical mixture of chabazite and offretite and we suggest that the use of the name zeolite Phi be discontinued

Relationships between CRDA Elements and Benefits to the Government in Technology Transfer

Technology transfer has become an increasingly important mission of federal laboratories over the past decade, with results that benefit the government, private companies, and the nation\u27s economy. Cooperative Research and Development Agreements (CRDAs) are the most used mechanism to perform technology transfer from our nation\u27s federal laboratories to the private sector. The main objective of this research is to determine important CRDA elements that are associated with higher benefits to the government. Recommendations are provided for technology transfer managers to improve CRDAs by identifying the CRDA elements that are associated with higher or lower benefits to the government. Key findings include that CRDAs, in general, provide many types of important benefits to the government. Some of the CRDA elements that are associated with significantly higher government benefits include quantified manpower requirements, the commercial partner\u27s ability to commercialize CRDA technology, market information for the CRDA technology, quantified copyright royalty rates, and quantified sales royalty rates. CRDA elements associated with significantly lower government benefits include detailed facilities requirements and the CRDA technology\u27s stage of development

Practice Before the Copyright Arbitration Royalty Panel in U.S.C. § 111 Distribution Proceedings

The 1976 Act showed foresight in extending the section 115 compulsory phonorecord license model to secondary transmissions under section III. Congress\u27 intent was to encourage flexible market forces to set the value of cable rebroadcasts. Instead of statutory rates, they fixed minimal guidelines for the distribution of collected retransmission royalties. Originally an obscure and very technical section of the Copyright Act, the impact of section III has expanded with the merger of cable television, radio, cable, satellite, and broadband distribution of digital media. The millions of dollars in royalties paid annually by cable systems provide a tempting target for copyright owners to make up for revenue lost to internet piracy. Congress\u27 reluctance to set clear guidelines led to a highly litigious procedure, relying on prior CRT and CARP decisions, not statute. Throughout history, advances in technology have applied new pressures to copyright law. The claim and distribution process under 17 U.S.C. § 111 must be updated for the digital age

Padawan’s Journey: Remixing Star Wars Radio for Adolescent Literacy Education

The Star Wars phenomenon motivates adolescents who may be disengaged in the classroom. The wealth of visual content may overshadow the power of the music, sound effects, and dialogue. In literacy education, skills are often practiced by reading and discussing traditional texts. In this digital literacy project, struggling readers remixed the Star Wars canon through audio storytelling. Students served as actors, Foley artists, and directors in the recording of brief episodes based on the original trilogy. The project heightens students’ oral fluency and text comprehension by engaging in close reading and structured dialogue. The recordings demonstrate how students can be effective storytellers and produce a sophisticated exhibit of learning. Future plans to extend full-length stories and enhance production are on-going

Extreme scattering events and Galactic dark matter

Extreme Scattering Events (ESEs) are attributed to radio-wave refraction by a cloud of free-electrons crossing the line-of-sight. We present a new model in which these electrons form the photo-ionized 'skin' of an underlying cool, self-gravitating cloud in the Galactic halo. In this way we avoid the severe over-pressure problem which afflicts other models. The UV flux in the Galactic halo naturally generates electron densities of the right order. We demonstrate, for the first time, a good reproduction of the prototypical ESE in the quasar 0954+658. The neutral clouds are a few AU in radius and have masses less than about 10^{-3} solar. The observed rate of ESEs implies that a large fraction of the mass of the Galaxy is in this form.Comment: 5 pp incl 3 figs, LaTeX, uses aas2pp4.sty. Minor revisions. ApJ Letters in pres

The Researcher Social Network: a social network based on metadata of scientific publications

Scientific journals can capture a scholar’s research career. A researcher’s publication data often reflects his/her research interests and their social relations. It is demonstrated that scientist collaboration networks can be constructed based on co-authorship data from journal papers. The problem with such a network is that researchers are limited within their professional social network. This work proposes the idea of constructing a researcher’s social network based on data harvested from metadata of scientific publications and personal online profiles. We hypothesize that data, such as, publication keywords, personal interests, the themes of the conferences where papers are published, and co-authors of the papers, either directly or indirectly represent the authors’ research interests, and by measuring the similarity between these data we are able to construct a researcher social network. Based on the four types of data mentioned above, social network graphs were plotted, studied and analyzed. These graphs were then evaluated by the researchers themselves by giving ratings. Based on this evaluation, we estimated the weight for each type of data, in order to blend all data together to construct one ideal researcher’s social network. Interestingly, our results showed that a graph based on publication’s keywords were more representative than the one based on publication’s co-authorship. The findings from the evaluation were used to propose a dynamic social network data model

Cosmic Strings, Zero Modes and SUSY breaking in Nonabelian N=1 Gauge Theories

We investigate the microphysics of cosmic strings in Nonabelian gauge theories with N=1 supersymmetry. We give the vortex solutions in a specific example and demonstrate that fermionic superconductivity arises because of the couplings and interactions dictated by supersymmetry. We then use supersymmetry transformations to obtain the relevant fermionic zero modes and investigate the role of soft supersymmetry breaking on the existence and properties of the superconducting strings.Comment: 12 pages, RevTex, submitted to Phys. Rev.

VPI-7: The First Zincosilicate Molecular Sieve Containing Three-membered T-Atom Rings

VPI-7: the first microporous zincosilicate to contain 3-membered rings (3MR) is reported

Observation of accelerating parabolic beams

We report the first observation of accelerating parabolic beams. These accelerating parabolic beams are similar to the Airy beams because they exhibit the unusual ability to remain diffraction-free while having a quadratic transverse shift during propagation. The amplitude and phase masks required to generate these beams are encoded onto a single liquid crystal display. Experimental results agree well with theory

Using Power Diagrams to Build Optimal Unstructured Meshes for C-Grid Models

The Model for Prediction Across Scales (MPAS) for Ocean (-O), Sea-Ice (-SI) and Land-Ice (-LI), in addition to the Coastal Ocean Marine Prediction Across Scales (COMPAS) are two novel general circulation models designed to resolve coupled ocean-ice dynamics over variable spatial scales using non-uniform unstructured grids. Both models are based on a conservative mimetic finite-difference/volume formulation (TRiSK), in which staggered momentum, vorticity and mass-based degrees- of-freedom are distributed over an orthogonal 'primal-dual' mesh