Digital Commons Network^™

Assessing Arsenic Removal By Zero Valent Iron Under Various Water Quality And Precoat Filtration Conditions, Paul T. Pepler

Master's Theses and Capstones

Arsenic contamination in drinking water is a world wide public health concern. Previous studies with zero valent iron (ZVI) have indicated its effectiveness in the removal of arsenic from contaminated waters. This study examined a range of water quality conditions to determine the optimal conditions for As removal while minimizing iron dissolution. This information was used to assess the modification of precoat filtration with ZVI for arsenic removal.

ORP exerts a significant influence on arsenic removal with the greatest removals (>99%) occurring at high ORPs and the smallest removals occurring at low ORPs. ZVI amended precoat filtration studies displayed …

Investigation Of Radical Entry And Diffusion Within Latex Particles During Emulsion Polymerization, Brian S. Perry

Master's Theses and Capstones

In the field of aqueous based free radical emulsion polymerization, it has been a long-standing belief that a charged polymer chain end group will exclusively anchor to the surface of a polymer particle. This notion is not intuitive for all cases, particularly in the case of an inverted core-shell composite particle where second stage polymer resides within the interior and is surrounded by first stage polymer. This dissertation describes a plethora of polymerizations and subsequent characterization techniques used to determine the location of polymer chain end groups in a series of seeded batch and semi-batch emulsion polymerizations. The analytical results …

Assessing Post Treatment Aeration Variables To Reduce Trihalomethanes For Small Systems, Ethan S. Brooke

Master's Theses and Capstones

Small Public Water Systems face unique challenges in meeting Stage I & II disinfection byproduct rules. Diffused and spray aeration offer significant advantages in installation and O&M costs for small communities that need to lower THMs in finished drinking water. In this study, bench and pilot aeration assessments were undertaken in order to evaluate the importance and interaction of aeration variables associated with Trihalomethane (THM) and specifically chloroform removal. Bench scale experiments to determine the effect of air stripping on free chlorine levels and water pH were also conducted.

The Granite, 2009, University Of New Hampshire

The Granite – Yearbook

The yearbook of the New Hampshire College of Agriculture and the Mechanic Arts, 1909-1922, the University of New Hampshire, 1923-

Mid-Ocean Ridge Transform Faults, Margaret S. Boettcher

Center for Coastal and Ocean Mapping

No abstract provided.

The Vertical Structure Of Shallow Water Flow In The Surf Zone And Inner Shelf, Thomas C. Lippmann

Center for Coastal and Ocean Mapping

No abstract provided.

Macroalgae And Eelgrass Mapping In Great Bay Estuary Using Aisa Hyperspectral Imagery., Shachak Pe'eri, John Ru Morrison, Frederick T. Short, Arthur C. Mathieson, Phil Trowbridge

Center for Coastal and Ocean Mapping

Results Increases in nitrogen concentration and declining eelgrass beds in Great Bay Estuary have been observed in the last decades. These two parameters are clear indicators of the impending eutrophication for New Hampshire’s estuaries. The NH Department of Environmental Services (DES) in collaboration with the Piscataqua Region Estuaries Partnership adopted the assumption that eelgrass survival can be used as the target for establishing numeric water quality criteria for nutrients in NH’s estuaries. One of the hypotheses put forward regarding eelgrass decline is that an eutrophication response to nutrient increases in the Great Bay Estuary has been the proliferation of nuisance …

The Professor Who Fell Out The Window, Unh Communications And Public Affairs

UNH Today Archive

Alumni remember their favorite professors

Intermission, Unh Communications And Public Affairs

UNH Today Archive

Time for a break from endless studying? There's no shortage of options at UNH.

Formation Of Even-Numbered Hydrogen Cluster Cations In Ultracold Helium Droplets, S. Jaksch, A. Mauracher, A. Bacher, S. Denifl, F. Ferreira De Silva, H. Schoebel, Olof E. Echt, T. D. Maerk, M. Probst, D. K. Bohme, P. Scheier

Physics & Astronomy

Neutral hydrogen clusters are grown in ultracold helium nanodroplets by successive pickup of hydrogen molecules. Even-numbered hydrogen cluster cations are observed upon electron-impact ionization with and without attached helium atoms and in addition to the familiar odd-numbered H(n)(+). The helium matrix affects the fragmentation dynamics that usually lead to the formation of overwhelmingly odd-numbered H(n)(+). The use of high-resolution mass spectrometry allows the unambiguous identification of even-numbered H(n)(+) up to n congruent to 120 by their mass excess that distinguishes them from He(n)(+), mixed He(m)H(n)(+), and background ions. The large range in size of these hydrogen cluster ions is unprecedented, …

The New Hampshire, Vol. 98 [99], No. 23 (Dec. 9, 2008), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 98, but it is the 99th volume in the series. This was corrected in pencil.

Abstraction As A Basis For The Computational Interpretation Of Creative Cross-Modal Metaphor, Sylvia Weber Russell

Computer Science

Various approaches to computational metaphor interpretation are based on pre-existing similarities between source and target domains and/or are based on metaphors already observed to be prevalent in the language. This paper addresses similarity-creating cross-modal metaphoric expressions. It is shown how the “abstract concept as object” (or reification) metaphor plays a central role in a large class of metaphoric extensions. The described approach depends on the imposition of abstract ontological components, which represent source concepts, onto target concepts. The challenge of such a system is to represent both denotative and connotative components which are extensible, together with a framework of general …

Integrating Landscapes That Have Experienced Rural Depopulation And Ecological Homogenization Into Tropical Conservation Planning, Aerin L. Jacob, Ismael Vaccaro, Raja Sengupta, Joel N. Hartter, Colin A. Chapman

Geography

If current trends of declining fertility rates and increasing abandonment of rural land as a result of urbanization continue, this will signal a globally significant transformation with important consequences for policy makers interested in conservation planning. This transformation is presently evident in a number of countries and projections suggest it may occur in the future in many developing countries. We use rates of population growth and urbanization to project population trends in rural areas for 25 example countries. Our projections indicate a general decline in population density that has either occurred already (e.g., Mexico) or may occur in the future …

The Rhetoric Of Predictability: Reclaiming The Lay Ear In Music Copyright Infringement Litigation, Austin Padgett

The University of New Hampshire Law Review

[Excerpt] “Some things cannot be described. This is the theory that recent literary criticism has placed as its cornerstone. Philosopher-critic Roland Barthes identified this trend in his Mythologies, stating that critics often “suddenly decide that the true subject of criticism is ineffable, and criticism, as a consequence, unnecessary. Unfortunately, this view has become singular within the legal academy whenever an author discusses music copyright infringement analysis. It seems that scholars fear the thought of trusting a jury with such an “ineffable” subject as music and must propose alternatives, such as expert testimony, specialized courts, or mechanical analysis, that will diminish …

Global Irrigation Water Demand: Variability And Uncertainties Arising From Agricultural And Climate Data Sets, Dominik Wisser, Steve Frolking, Ellen M. Douglas, Balazs M. Fekete, Charles Vorosmarty, Andreas H. Schumann

Earth Sciences

Agricultural water use accounts for around 70% of the total water that is withdrawn from surface water and groundwater. We use a new, gridded, global-scale water balance model to estimate interannual variability in global irrigation water demand arising from climate data sets and uncertainties arising from agricultural and climate data sets. We used contemporary maps of irrigation and crop distribution, and so do not account for variability or trends in irrigation area or cropping. We used two different global maps of irrigation and two different reconstructions of daily weather 1963–2002. Simulated global irrigation water demand varied by ∼30%, depending on …

The Whittemore Wire, Winter 2008: Focus On Education, Whittemore School Of Business And Economics

Paul College Newsletters

No abstract provided.

The New Hampshire, Vol. 98 [99], No. 19 (Nov. 21, 2008), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 98, but it is the 99th volume in the series. This was corrected in pencil.

Who Cares About Polar Regions? Results From A Survey Of U.S. Public Opinion, Lawrence C. Hamilton

Sociology

Abstract

What do members of the general public know about polar regions, and how much do they care? Who knows or cares? This paper explores data from the General Social Survey (GSS), which in 2006 questioned a representative sample of more than 1800 U.S. adults about their knowledge and opinions concerning polar regions. The polar survey items were modeled on long-running GSS assessments of general science knowledge and opinions, recently summarized in the U.S. National Science Board's report Science and Engineering Indicators 2008. Polar knowledge proves to be limited but certainly not absent among survey respondents. Polar knowledge, general science …

Observations Of Clustering Inside Oceanic Bubble Clouds And The Effect On Short-Range Acoustic Propagation, Thomas C. Weber

Center for Coastal and Ocean Mapping

It has recently been shown [Weber, T. C. et al. (Year: 2007). “Acoustic propagation through clustered bubble clouds,” IEEE J. Ocean. Eng.32, 513–523] that gas bubble clustering plays a role in determining the acoustic field characteristics of bubbly fluids. In particular, it has been shown that clustering changes the bubble-induced attenuation as well as the ping-to-ping variability in the acoustic field. The degree to which bubble clustering exists in nature, however, is unknown. This paper describes a method for quantifying bubble clustering using a high frequency (400kHz) multibeam sonar, and reports on observations of near-surface bubbleclustering during a storm ( …

Transpacific Transport Of Ozone Pollution And The Effect Of Recent Asian Emission Increases On Air Quality In North America: An Integrated Analysis Using Satellite, Aircraft, Ozonesonde, And Surface Observations, D Zhang, D J. Jacob, K F. Boersma, D A. Jaffe, J R. Olson, K W. Bowman, J Worden, A M. Thompson, M A. Avery, Ronald C. Cohen, Jack E. Dibb, F Flocke, H Fuelberg, L Gregory Huey, W W. Mcmillan, H B. Singh, Andrew Weinheimer

Earth Sciences

We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for transpacific ozone pollution and its implications for North American air quality. The observations are interpreted with a global 3-D chemical transport model (GEOS-Chem). OMI NO2 satellite observations constrain Asian anthropogenic NOx emissions and indicate a factor of 2 increase from 2000 to 2006 in China. Satellite observations of CO from AIRS and TES indicate two major events of Asian transpacific pollution during INTEX-B. Correlation between TES CO and ozone observations shows evidence for transpacific ozone pollution. The …

The New Hampshire, Vol. 98 [99], No. 9 (Oct. 10, 2008), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 98, but it is the 99th volume in the series. This was corrected in pencil.

Geocoastpilot: Linking The Coast Pilot With Geo-Referenced Imagery & Chart Information, Kurt Schwehr, Matthew D. Plumlee, Briana M. Sullivan, Colin Ware

Center for Coastal and Ocean Mapping

No abstract provided.

Uncertainty Representation In Hydrographic Surveys And Products, Brian R. Calder

Center for Coastal and Ocean Mapping

No abstract provided.

Using Moored Arrays And Hyperspectral Aerial Imagery To Develop Nutrient Criteria For New Hampshire's Estuaries, J. Ru Morrison, Thomas K. Gregory, Shachak Pe'eri, William H. Mcdowell, Philip Trowbridge

PREP Reports & Publications

Increasing nitrogen concentrations and declining eelgrass beds in Great Bay, NH are clear indicators of impending problems for the state’s estuaries. A workgroup established in 2005 by the NH Department of Environmental Services and the NH Estuaries Project (NHEP) adopted eelgrass survival as the water quality target for nutrient criteria development for NH’s estuaries. In 2007, the NHEP received a grant from the U.S. Environmental Protection Agency to collect water quality information including that from moored sensors and hyper-spectral imagery data of the Great Bay Estuary. Data from the Great Bay Coastal Buoy, part of the regional Integrated Ocean Observing …

U.S. Law Of The Sea Cruise To Map The Foot Of The Slope And 2500-M Isobath Of The U.S. Arctic Ocean Margin. Cruise Report For 2008, Larry A. Mayer, Andy Armstrong

Center for Coastal and Ocean Mapping

USCGC Icebreaker Healy (WAGB-20)

U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the US Arctic Ocean margin

CRUISES HE-0805

August 14 to September 5, 2008

Barrow, AK to Barrow, AK

Students Present Summer Research Results To Scientists At Unh, Nasa, David Sims

Media Relations

No abstract provided.

Posteruptive Phenomena In Coronal Mass Ejections And Substorms: Indicators Of A Universal Process?, K. K. Reeves, T. B. Guild, W. J. Hughes, K. E. Korreck, J. Lin, J. Raymond, S. Savage, Nathan A. Schwadron, Harlan E. Spence, D. F. Webb, M. Wiltberger

Physics & Astronomy

[1] We examine phenomena associated with eruptions in the two different regimes of the solar corona and the terrestrial magnetosphere. We find striking similarities between the speeds of shrinking magnetic field lines in the corona and dipolarization fronts traversing the magnetosphere. We also examine the similarities between supra-arcade downflows observed during solar flares and bursty bulk flows seen in the magnetotail and find that these phenomena have remarkably similar speeds, velocity profiles, and size scales. Thus we show manifest similarities in the magnetic reconfiguration in response to the ejection of coronal mass ejections in the corona and the ejection of …

The Whittemore Wire, Fall 2008: Engaged Partnerships, Whittemore School Of Business And Economics

Paul College Newsletters

No abstract provided.

Enhanced Secondary Organic Aerosol Formation Due To Water Uptake By Fine Particles, Stephen R. Hennigan, M Bergin, Jack E. Dibb, Rodney J. Weber

Earth Sciences

This study characterizes the partitioning behavior of a significant fraction of the ambient organic aerosol through simultaneous measurements of gas and particle watersoluble organic carbon (WSOC). During the summer in Atlanta, WSOC gas/particle partitioning showed a strong RH dependence that was attributed to particulate liquid water. At elevated RH levels (>70%) a significant increase in WSOC partitioning to the particle phase was observed and followed the predicted water uptake by fine particles. The enhancement in particle-phase partitioning translated to increased median particle WSOC concentrations ranging from 0.3 –0.9 mgCm3 . The results provide a detailed overview of the WSOC …

High-Efficiency Resonant Rf Spin Rotator With Broad Phase Space Acceptance For Pulsed Polarized Cold Neutron Beams, P. N. Seo, L. Barron-Palos, J. D. Bowman, T. E. Chupp, C Crawford, M. Dabaghyan, M. Dawkins, S. J. Freedman, T. Gentile, M. T. Gericke, R. C. Gillis, G. L. Greene, F. William Hersman, G. L. Jones, M. Kandes, S. Lamoreaux, B. Lauss, M. B. Lueschner, R. Mahurin, M. Mason, J. Mei, G. S. Mitchell, H. Nann, S. A. Page, S. I. Penttila, W. D. Ramsay, A. Salas Bacci, S. Santra, M. Sharma, T. B. Smith, W. M. Snow, W. S. Wilburn, H. Zhu

Physics & Astronomy

High precision fundamental neutron physics experiments have been proposed for the intense pulsed spallation neutron beams at JSNS, LANSCE, and SNS to test the standard model and search for new physics. Certain systematic effects in some of these experiments have to be controlled at the few ppb level. The NPDGamma experiment, a search for the small parity-violating gamma-ray asymmetry A(gamma) in polarized cold neutron capture on parahydrogen, is one example. For the NPDGamma experiment we developed a radio-frequency resonant spin rotator to reverse the neutron polarization in a 9.5 cm x 9.5 cm pulsed cold neutron beam with high efficiency …