Prospectus, October 9, 2013

SMOKING BAN CONSIDERED ON CAMPUS; Second annual Zombie Run slated for Oct. 19; Affordable Care Act: Are you covered?; Simple ways to stay focusted in any classroom; Obamacare may cause dizziness; No live on Mars? Maybe someday; Streaming services offer convenience; Volleyball more than just a gamehttps://spark.parkland.edu/prospectus_2013/1016/thumbnail.jp

Prospectus, September 4, 2013

CARPOOL PARKING: EASY ALTERNATIVE FOR DRIVERS?; The right reasons to pick a college; 200 years very Grimm trivia; CAS a good resource for students; Before the missiles fly against Syria; Down with the patent trolls; Cobra volleyball continues hot start; Parkland Art Gallery features new fall exhibitshttps://spark.parkland.edu/prospectus_2013/1011/thumbnail.jp

Prospectus, June 5, 2013

PARKLAND CELEBRATES GRADUATES OF 2013; Summer Camp Music Festival seeks to Make a Difference ; The tattoo controversy: Do or don\u27t?; Summer preview for the Planetarium and Art Gallery; Six truths about summer-it\u27s no picnic; What to do when your laptop dies; WPCD album review: Rogue Wave\u27s Nightingale Floors ; Cobras baseball ends injured season; Achievements more important than gameplay?https://spark.parkland.edu/prospectus_2013/1032/thumbnail.jp

Prospectus, September 25, 2013

PROFESSOR STARS IN INDIE FILM; Access Success features Kerris Lee; International Student Award recipient: Jeongwon Yoon; The beginner\u27s guide to budgeting; Tips for students who plan on transferring after Parkland; Using reality TV to reveal your personality; GOP\u27s misguided attack on food stamps; Cobra women\u27s soccer heats up; Tips for gaming on a budgethttps://spark.parkland.edu/prospectus_2013/1014/thumbnail.jp

Analyzing Forensic Evidence Based on Density with Magnetic Levitation

This paper describes a method for determining the density of contact trace objects with magnetic levitation (MagLev). MagLev measurements accurately determine the density (±0.0002 g/cm3) of a diamagnetic object and are compatible with objects that are nonuniform in shape and size. The MagLev device (composed of two permanent magnets with like poles facing) and the method described provide a means of accurately determining the density of trace objects. This method is inexpensive, rapid, and verifiable and provides numerical values—independent of the specific apparatus or analyst—that correspond to the absolute density of the sample that may be entered into a searchable database. We discuss the feasibility of MagLev as a possible means of characterizing forensic-related evidence and demonstrate the ability of MagLev to (i) determine the density of samples of glitter and gunpowder, (ii) separate glitter particles of different densities, and (iii) determine the density of a glitter sample that was removed from a complex sample matrix.Chemistry and Chemical Biolog

Prospectus, September 11, 2013

MEN\u27S SOCCER HOSTS KICK FOR THE CURE ; International Student Award recipient: YoungSuk Oh; Parkland PRIDE backs LGBT community; How to stay safe on campus; Video game violence may go too far; Candidate statements for fall election; Parkland volleyball serves one up for communityhttps://spark.parkland.edu/prospectus_2013/1012/thumbnail.jp

Diagnosing domestic and transboundary sources of fine particulate matter (PM2.5) in UK cities using GEOS-Chem

The UK is set to impose a stricter ambient annual mean fine particulate matter (PM2.5) standard than was first adopted fourteen years ago. This necessitates strengthened knowledge of the magnitude and sources that influence urban PM2.5 in UK cities to ensure compliance and improve public health. Here, we use a regional-scale chemical transport model (GEOS-Chem), validated with national ground-based observations, to quantify the influence of specific sources within and transported to the mid-sized UK city Leicester. Of the sources targeted, we find that agricultural emissions of ammonia (NH3) make the largest contribution (3.7 μg m−3 or 38 % of PM2.5) to annual mean PM2.5 in Leicester. Another important contributor is long-range transport of pollution from continental Europe accounting for 1.8 μg m−3 or 19 % of total annual mean PM2.5. City sources are a much smaller portion (0.2 μg m−3; 2 %). We also apply GEOS-Chem to the much larger cities Birmingham and London to find that agricultural emissions of NH3 have a greater influence than city sources for Birmingham (32 % agriculture, 19 % city) and London (25 % agriculture, 13 % city). The portion from continental Europe is 16 % for Birmingham and 28 % for London. Action plans aimed at national agricultural sources of NH3 and strengthened supranational agreements would be most effective at alleviating PM2.5 in most UK cities

Separation of Nanoparticles in Aqueous Multiphase Systems through Centrifugation

This paper demonstrates the use of aqueous multiphase systems (MuPSs) as media for rate-zonal centrifugation to separate nanoparticles of different shapes and sizes. The properties of MuPSs do not change with time or during centrifugation; this stability facilitates sample collection after separation. A three-phase system demonstrates the separation of the reaction products (nanorods, nanospheres, and large particles) of a synthesis of gold nanorods, and enriches the nanorods from 48 to 99% in less than ten minutes using a benchtop centrifuge.Chemistry and Chemical BiologyEngineering and Applied Science

Inlet Flow Control and Prediction Technologies for Embedded Propulsion Systems

Fail-safe inlet flow control may enable high-speed cruise efficiency, low noise signature, and reduced fuel-burn goals for hybrid wing-body aircraft. The objectives of this program are to develop flow control and prediction methodologies for boundary-layer ingesting (BLI) inlets used in these aircraft. This report covers the second of a three year program. The approach integrates experiments and numerical simulations. Both passive and active flow-control devices were tested in a small-scale wind tunnel. Hybrid actuation approaches, combining a passive microvane and active synthetic jet, were tested in various geometric arrangements. Detailed flow measurements were taken to provide insight into the flow physics. Results of the numerical simulations were correlated against experimental data. The sensitivity of results to grid resolution and turbulence models was examined. Aerodynamic benefits from microvanes and microramps were assessed when installed in an offset BLI inlet. Benefits were quantified in terms of recovery and distortion changes. Microvanes were more effective than microramps at improving recovery and distortion