183 research outputs found
Properties of air and combustion products of fuel with air
Thermodynamic and transport properties have been calculated for air, the combustion products of natural gas and air, and combustion products of ASTM-A-1 jet fuel and air. Properties calculated include: ratio of specific heats, molecular weight, viscosity, specific heat, thermal conductivity, Prandtl number, and enthalpy
Application of thermal imagery to the development of a Great Lakes ice information system
Recent measurements and analysis have shown that thermal infrared imagery (wavelength, 8-14 microns) can be employed to delineate the relative thicknesses of various regions of freshwater ice, as well as, differentiate new ice from both open water areas and thicker (young)ice. Thermal imagery was observed to be generally superior to visual (0.4 - 0.7 microns) and our SLAR (3.3 cm) imagery for estimating relative ice thicknesses and delineating open water from new ice growth. In a real-time Great Lakes Ice Information System, thermal imagery can not only provide supplementary imagery but also aid in developing interpretative methods for all-weather SLAR imagery, as well as, establishing the areal extent of spot thickness measurements
Remote sensing study of Maumee River effects of Lake Erie
The effects of river inputs on boundary waters were studied in partial support of the task to assess the significance of river inputs into receiving waters, dispersion of pollutants, and water quality. The effects of the spring runoff of the Maumee River on Lake Erie were assessed by a combination of ship survey and remote sensing techniques. The imagery obtained from a multispectral scanner of the west basin of Lake Erie is discussed: this clearly showed the distribution of particulates throughout the covered area. This synoptic view, in addition to its qualitative value, is very useful in selecting sampling stations for shipboard in situ measurements, and for extrapolating these quantitative results throughout the area of interest
A preliminary report of multispectral scanner data from the Cleveland harbor study
Imagery obtained from an airborne multispectral scanner is presented. A synoptic view of the entire study area is shown for a number of time periods and for a number of spectral bands. Using several bands, sediment distributions, thermal plumes, and Rhodamine B dye distributions are shown
Coordinated aircraft and ship surveys for determining impact of river inputs on great lakes waters. Remote sensing results
The remote sensing results of aircraft and ship surveys for determining the impact of river effluents on Great Lakes waters are presented. Aircraft multi-spectral scanner data were acquired throughout the spring and early summer of 1976 at five locations: the West Basin of Lake Erie, Genesee River - Lake Ontario, Menomonee River - Lake Michigan, Grand River - Lake Michigan, and Nemadji River - Lake Superior. Multispectral scanner data and ship surface sample data are correlated resulting in 40 contour plots showing large-scale distributions of parameters such as total suspended solids, turbidity, Secchi depth, nutrients, salts, and dissolved oxygen. The imagery and data analysis are used to determine the transport and dispersion of materials from the river discharges, especially during spring runoff events, and to evaluate the relative effects of river input, resuspension, and shore erosion. Twenty-five LANDSAT satellite images of the study sites are also included in the analysis. Examples of the use of remote sensing data in quantitatively estimating total particulate loading in determining water types, in assessing transport across international boundaries, and in supporting numerical current modeling are included. The importance of coordination of aircraft and ship lake surveys is discussed, including the use of telefacsimile for the transmission of imagery
State Resolved Thermochemical Modeling of Nitrogen Using DSMC
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/97088/1/AIAA2012-2991.pd
GOMap - Geospatial Opportunity Mapping tool : an open-source GIS application for urban scale renewable energy generation
As part of a project awarded to Glasgow City Council (GCC) by Innovate UK, an interactive GIS-based Geospatial Opportunity Mapping (GOMap) tool was developed to identify land within the city of Glasgow that is policy unconstrained and technically feasible for the deployment of urban solar photovoltaic power stations (PVPS). The development process included workshops with GCC and ScottishPower Energy Networks (SPEN) regarding policy and technical aspect information respectively. Relevant factors associated with each aspect affecting site selection were identified. GOMap, based on the QGIS system, represents spatial relationships between policy and technical factors on a 10 m x 10 m city grid and implements a scoring system to differentiate factors that support or curtail PVPS deployment. User-directed weightings can be applied to explore alternative action plans. Finally, GOMap outputs are utilised by a PVPS model to estimate annual energy generation as a function of local weather and installation design (array spacing and panel tilt)
A naturalistic study of emotion regulation-enhanced cognitive-behavioral group therapy for hoarding disorder in a community setting
Background
Cognitive-behavioral group therapy for hoarding disorder (HD) is efficacious, but outcomes are modest and dropout rates are generally high. Clinical challenges in this population include high rates of comorbidity and difficulty regulating and tolerating negative emotions, which may reduce engagement with discarding exposures and lead to increased dropout.
Methods
In the current naturalistic study, we evaluated standard group cognitive-behavioral therapy enhanced with a three-session emotion regulation module in a large sample of individuals (N = 115) seeking treatment for HD at a community mental health clinic. We evaluated outcomes for distress tolerance, as well as hoarding symptoms and comorbid depression and anxiety symptoms.
Results
Distress tolerance was significantly improved at post-treatment, Hoarding symptoms, anxiety, and depression were also significantly decreased. Distress tolerance predicted more severe hoarding symptoms at baseline, but improvement in distress tolerance was not significantly associated with improvement in hoarding symptoms.
Limitations
The primary limitation was the absence of a control treatment condition, but HD is known to be a chronic condition which tends not to improve in waitlist control conditions.
Conclusions
Integrating emotion regulation strategies may provide an important pathway to improving treatment outcomes for hoarding disorder
Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations
Structure-Based Stabilization of HIV-1 gp120 Enhances Humoral Immune Responses to the Induced Co-Receptor Binding Site
The human immunodeficiency virus type 1 (HIV-1) exterior envelope glycoprotein, gp120, possesses conserved binding sites for interaction with the primary virus receptor, CD4, and also for the co-receptor, generally CCR5. Although gp120 is a major target for virus-specific neutralizing antibodies, the gp120 variable elements and its malleable nature contribute to evasion of effective host-neutralizing antibodies. To understand the conformational character and immunogenicity of the gp120 receptor binding sites as potential vaccine targets, we introduced structure-based modifications to stabilize gp120 core proteins (deleted of the gp120 major variable regions) into the conformation recognized by both receptors. Thermodynamic analysis of the re-engineered core with selected ligands revealed significant stabilization of the receptor-binding regions. Stabilization of the co-receptor-binding region was associated with a marked increase in on-rate of ligand binding to this site as determined by surface plasmon resonance. Rabbit immunization studies showed that the conformational stabilization of core proteins, along with increased ligand affinity, was associated with strikingly enhanced humoral immune responses against the co-receptor-binding site. These results demonstrate that structure-based approaches can be exploited to stabilize a conformational site in a large functional protein to enhance immunogenic responses specific for that region
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