4,437 research outputs found
MEMORANDUM: Quality Assurance of 2016 Great Bay Estuary Water Quality Data and 2017 Cocheco River and Bellamy River Water Quality Data collected by UNH
The purpose of this memorandum is to document the results of quality assurance checks on the 2016-2017 water quality data collected by UNH for the Great Bay National Estuarine Research Reserve (GBNERR) System-Wide Monitoring Program, GBNERR Diel Sampling, and UNH Tidal Water Quality Monitoring stations. These programs were previously established in the NHDES Environmental Monitoring Database with project identifiers of “NERRTWQ”, “NERRDIEL”, and “JELTWQ”, respectively. UNH/GRB NERR reviewed these data to ensure that they met data quality objectives for the National Estuarine Research Reserve and its partners
QA/QC Results for 2017-2018 Cocheco River and Bellamy River Tidal Water Quality Monitoring: Grab Sampling
UNH/GRB NERR QA Check of Great Bay Estuary Datasonde Records Cocheco River and Bellamy River for October-December 2017 and April-September 2018
Conformal Magnetic Composite RFID for Wearable RF and Bio-Monitoring Applications
©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or distribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.10.1109/TMTT.2008.2006810This paper introduces for the first time a novel flexible magnetic composite material for RF identification (RFID) and wearable RF antennas. First, one conformal RFID tag working at 480 MHz is designed and fabricated as a benchmarking prototype and the miniaturization concept is verified. Then, the impact of the material is thoroughly investigated using a hybrid method involving electromagnetic and statistical tools. Two separate statistical experiments are performed, one for the analysis of the impact of the relative permittivity and permeability of the proposed material and the other for the evaluation of the impact of the dielectric and magnetic loss on the antenna performance. Finally, the effect of the bending of the antenna is investigated, both on the S-parameters and on the radiation pattern. The successful implementation of the flexible magnetic composite material enables the significant miniaturization of RF passives and antennas in UHF frequency bands, especially when conformal modules that can be easily fine-tuned are required in critical biomedical and pharmaceutical applications
A simple device to collect, store and study samples of two-dimensional spider webs
Sin resumen.Fil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; ArgentinaFil: Ravelo, Alexandra M.. University of Alaska Fairbanks; Estados UnidosFil: Lopardo, Lara. University of Greifswald. Zoologisches Institut und Museum,; Alemani
Matter-antimatter rearrangements using the R-matrix method
Funding The contribution of EK was supported by the Ada Lovelace Centre, UK Science and Technology Facilities Council. MP’s work made use of support by CoSeC, the Computational Science Centre for Research Communities, through Collaborative Computational Project Q and High-End-Consortium (HEC) UK-AMOR. Acknowledgments We are grateful for helpful discussions with Jonathan Tennyson and Mike Charlton. The bound-state calculations were performed using the Maxwell High Performance Computing Cluster of the University of Aberdeen IT Service.Peer reviewedPublisher PD
Optical signatures of the superconducting Goldstone mode in granular aluminum: experiments and theory
Recent advances in the experimental growth and control of disordered thin
films, heterostructures, and interfaces provide a fertile ground for the
observation and characterisation of the collective superconducting excitations
emerging below after breaking the gauge symmetry. Here we combine
THz experiments in a nano-structured granular Al thin film and theoretical
calculations to demonstrate the existence of optically-active phase modes,
which represent the Goldstone excitations of the broken gauge symmetry. By
measuring the complex transmission trough the sample we identify a sizeable and
temperature-dependent optical sub-gap absorption, which cannot be ascribed to
quasiparticle excitations. A quantitative modelling of this material as a
disordered Josephson array of nano-grains allows us to determine, with no free
parameters, the structure of the spatial inhomogeneities induced by shell
effects. Besides being responsible for the enhancement of the critical
temperature with respect to bulk Al, already observed in the past, this spatial
inhomogeneity provides a mechanism for the optical visibility of the Goldstone
mode. By computing explicitly the optical spectrum of the superconducting phase
fluctuations we obtain a good quantitative description of the experimental
data. Our results demonstrate that nanograins arrays are a promising setting to
study and control the collective superconducting excitations via optical means
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