Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This SBIR will develop core Yb laser technology that is higher than 50% optical to optical efficient with pulse energies up to 300uJ/pulse in the all fiber version and up to 5mJ using planer waveguide power amplifiers. This SBIR try to newest fiber technology 3C fiber as the gain medium fiber to improve the stability of beam profile, pointing and polarization stability to suitable for space working environment. The proposed laser transmitter is based on Fibertek's proprietary laser architecture that utilize state-of-the-art optical and ultra high bandwidth RF analog and digital electronic component technologies. Technical Objectives of SBIR program: Analysis and Design of high energy, high efficient fiber based 3C amplifier transmitter at the 1030 nm. Laboratory Benchtop Demonstration of 300uJ/pulse operation at 10 kHz with 1.5 ns pulse width and >17dB PER Design fibre-PWG hybrid amplifier and have PWG fabricated and tested Work Plan for Phase I: Model & optimize both type amplifiers' parameters for high energy, high efficiency and stability Build fiber based lidar transmitter and demonstrate proposed operation in the laboratory environment. Initial investigate on the PWG optical characterizations and amplification performance.
Starch gel and cellulose acetate electrophoretic analysis of allozyme frequencies in barn swallow (Hirundo rustica) populations at a dioxin contaminated site in northern Louisiana
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This study compared the genetic variability of Louisiana barn swallows at a dioxincontaminated wetland to two reference populations. Allozyme frequencies, determined by starch gelcellulose acetate electrophoresis, were used to compare genetic variation. This was the first study of this type using avian species, the results failed to show genetic alteration in the potentially contaminated population compared to the reference populations. The barn swallows from the contaminated site were genetically more similar to one of the reference populations than were the reference populations to each other.
Published By Social Security Administration
Issued over 9 years ago
Summary
Description
Contains information submitted by the regional offices on daily visitor intake processing.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
This dataset show the generalized coverage area (as of October 2014), of High Frequency (HF) radar systems across the US. HF radars measure the speed and direction of ocean surface currents in near real time. These radars can measure currents over a large region of the coastal ocean, from a few kilometers offshore up to 200 km, and can operate under any weather conditions. They are located near the water's edge, and need not be situated atop a high point of land. Dozens of institutions own and operate HF radars within the United States, and a majority are coordinated through the US Integrated Ocean Observing System. Ocean surface current data from these radars are shared on national servers -- the National Data Buoy Center and Scripps Institution of Oceanography -- who deliver the data to anyone who needs it. A process is currently underway to further define the spatial footprint of each radar based on local factors such as nearby obstructions, local wind-wave environment, etc. When available, this data will be integrated into MarineCadastre.gov. In the meantime, if specific information regarding a local radar system is required, please contact Dr. Jack Harlan, Project Manager for the HF Radar Ocean Remote Sensing, US IOOS Program Office.
Published By Federal Laboratory Consortium
Issued over 9 years ago
Summary
Description
FUNCTION: The NRL Global Information Grid Evaluation Facility (GIG-EF) is a federated research and development testbed that provides an unconstrained network infrastructure to demonstrate integration of leading-edge technology for the Navy/Marine/DoD warfighter and the intelligence community. A portion of GIG-EF is a unique, all-optical (OOO) national asset. The GIG-EF remains at the forefront of packet IPv6 technology. It employs a "rapid prototype" rocess to deploy, stress, and quickly transition hardware and software communications developments to operations by testing in a real-world distributed system engineering testbed. The GIG-EF works in conjunction with federated partners to couple optical switched and routed core paths to emulated TSAT satellite links and mobile JTRS edge assets. GIG-EF collaborators validate desired end-to-end performance of applications within a shared black core net-centric infrastructure. DESCRIPTION: The GIG-EF is unique within DoD and the Federal government. No other test venue offers the ability to bring system and network designers, engineers, and end-users together on either formal evaluation and testing schedules or ad hoc experimentation schedules. The GIG-EF process stresses services to the breaking point and beyond "on a network that exposes interfaces early and often and can break!" The GIG-EF provides a CONUS-wide laboratory that leverages existing DoD operational test facilities that otherwise would remain isolated. The GIG-EF motto is: "One good test is worth a thousand engineering options!" INSTRUMENTATION: The GIG-EF supports a variety of systems and instrumentation that can be used to stress and measure net-centric performance. Devices range from actual production network devices (switches, routers, etc.) to computing blade servers on which to develop and test prototype network protocols, delay generators, satellite emulators, edge devices, and encryptors. GIG-EF provides the complete suite of software performance monitoring capabilities that enable IPv4/IPv6 packet capture and analysis from Kbps to 10-4 0 Gbps. The GIG-EF federation of networks includes the all-optical research core that extends from NRL and the DC metro area to Boston; shared access to HPCMO DREN sites; and by arrangement, connection to DISA DISN CONUS/OCONUS services and National Lambda Rail and Internet2.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
This data set consists of 12 full or partial Landsat Enhanced Thematic Mapper scenes which were analyzed according to the Coastal Change Analysis Program (C-CAP) protocol to determine land cover. If you wish to create an attribute table to identify the different land cover classifications, an easy reference table is available under the Process_Description section.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This map was produced by the Division of Realty to depict landownership at Erie National Wildlife Refuge. It was generated from rectified aerial photography, cadastral surveys and recorded documents.
Published By Department of Energy
Issued over 9 years ago
Summary
Description
U.S. imports of all grades of crude oil, i.e., heavy sour, heavy sweet, light sour, light sweet, and medium crude oil. Data organized by ports of entry. Data in monthly or annual time series. Users of the EIA API are required to obtain an API Key via this registration form: http://www.eia.gov/beta/api/register.cfm
HW2_250M_LCC_WGS84.TIF - Hawaii II - Central Hawaiian Ridge U.S. EEZ GLORIA sidescan-sonar composite mosaic (LCC, 250 m, WGS84)
Published By U.S. Geological Survey, Department of the Interior
Issued over 9 years ago
Summary
Description
In 1984, the U.S. Geological Survey (USGS), Office of Marine Geology, launched a program using the Geological LOng-Range Inclined Asdic (GLORIA) sidescan-sonar system to study the entire U.S. Exclusive Economic Zone (EEZ). From 1988 through 1991, as part of that program, the USGS and IOS (Institute of Oceanographic Sciences, U.K.) scientists conducted nine cruises within the U.S. EEZ off Hawaii. The surveys during that time period focused on the central Hawaiian region. The results of these surveys were 24 digital mosaics of approximately a 2 degree by 2 degree area with a 50-meter pixel resolution. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the sea-floor.
Published By Department of Transportation
Issued over 9 years ago
Summary
Description
HPMS compiles data on highway network extent, use, condition, and performance. The system consists of a geospatially-enabled database that is used to generate reports and provides tools for data analysis. Information from HPMS is used by many stakeholders across the US DOT, the Administration, Congress, and the transportation community.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
PDS Tools Package (4.8)
Published By Department of Justice
Issued over 9 years ago
Summary
Description
This survey provides nationally representative data on inmates held in state prisons and federally-owned and operated prisons. Through personal interviews conducted from October 2003 through May 2004, inmates in both state and federal prisons provided inf
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
This data set consists of moored Upward Looking Sonar (ULS) data from 14 stations in the Weddell Sea. Parameters in the processed data files are water pressure, water temperature, draft, and a flag to indicate if the instrument is under ice. Raw data files contain additional parameters. These data were contributed by the Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany, in 1999. Data are available via ftp.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This map was produced by the Division of Realty to depict landownership at Lacreek National Wildlife Refuge. It was generated from rectified aerial photography, cadastral surveys and recorded documents.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Cloud Computing Project
Temperature, salinity, nutrient, and ammonia profiles collected by bottle in the Black Sea from 5/5/1955 - 4/16/1989 (NODC Accession 0000131)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
Nutrients and temperature profile data were collected using bottle casts from the FIOLENT and other platforms in the Black Sea. Data were collected from 05 May 1955 to 16 April 1989 with support from the Global Ocean Data Archaeology and Rescue (GODAR) project.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
The hydrologic system, which includes all possible paths of motion of Earth's near-surface fluids including air and water, is largely responsible for the variety of landforms found on the continents. Heat from the sun evaporates water from oceans, lakes, and streams. Although most of the water returns directly as precipitation to the oceans, some of the water is precipitated over land as rain or snow. If it is precipitated over land, it then begins its journey back to the sea as runoff. The relentless action of surface runoff, streams, and rivers, glaciers, and waves sculpts the rock into intriguing and bizarre shapes. This set of slides includes examples of wave erosion, wind and water erosion, valley shapes, and glacial erosion. The views are often dramatic. Many were taken at U.S. National Parks and Monuments. Water Erosion of Horizontal Strata in Semiarid Lands After the horizontal strata in today's semiarid landscapes were deposited, they were uplifted, twisted and cracked, forming joints-parallel fractures in the brittle rock. These joint systems are made vulnerable to weatheringand frost wedging by the erosion of the overlying resistant layers. As the joints and fractures widen, rock fins are produced. In addition to fins, large flat areas called plateaus may be eroded along joints into smaller flat topped mesas and still smaller buttes. Buttes are further eroded into pillars and pinnacles. Slabs of rock may break away between two joints in a fin so that an alcove (a recess) forms. As the alcove enlarges, a small window may be produced in the cliff face. Weathering then proceeds inward from all surfaces. As weathering removes the rock surface, pressures locked within the formation itself are released, breaking off more rock flakes. Rock falls from the ceiling of the opening, and the span thins and elongates. These erosive forces-dissolution, frost action, and release of compression-eventually enlarge the window in the fin, creating an arch. Variability in the cementing materials and the rock structure in the arch floor, buttresses, or ceiling determines the size, shape, and age of the arch. The shape and size of the arches changes over time, and the forces that created an arch finally destroy it, leaving goblin-like columns. Wave Erosion Coastal areas are bombarded by water in constant motion. Although wind and/or storm-generated waves, tides, and tsunamis all play a role insculpting the shoreline, the relentless motion of waves is perhaps the most important of these factors. These waves are generated by the wind at sea. As the wave approaches the shore, it breaks, and the surf surges on shore causing erosion, transportation, and deposition in beach areas. The breaking waves transporting sand and gravel encounter the headlands and powerfully abrade them horizontally forming platforms, cliffs, alcoves, and caves in the rock. River SystemsA river system functions as a unified whole, adjusting its profile to establish equilibrium among the factors that influence flow. These factors include discharge, velocity, topographic gradient, base level and load. Although downcutting by the stream is slow on resistant rock units, it occurs more rapidly than erosion and mass movements of the slopes. As a result, vertical-walled canyons develop. But if slope processes keep pace with downcutting, the landscape is characterized by smooth rolling hillsand valleys. Initial dissection and slope retreat occur as a result of uplift. Slope retreat causes non-resistant rocks to recede from the river so that terraces are left on resistant rock layers. GlaciationA prerequisite for glacier formation is that more snow accumulates than melts in the period of a year. Ice sheets have covered major portions ofthe continents, and valley glaciers have formed and melted in many of the mountainous regions of the globe. When these glaciers melted, they haveleft behind an altered landscape. The glaciers alter pre-existing river patterns. They scour mountain tops, valleys, and continental surfaces, transport the eroded particles, and finally leave behind the removed material as glacial deposits.
Published By Social Security Administration
Issued over 9 years ago
Summary
Description
Provides information on quality reviews of disability cases.
Published By Social Security Administration
Issued over 9 years ago
Summary
Description
Measures and monitors adjudicative processes for all SSA programs.
CRED Simrad em300 multibeam backscatter data of Johnston Atoll, Pacific Remote Island Areas, Central Pacific in GeoTIFF format
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
Multibeam backscatter imagery extracted from gridded bathymetry of the shelf and slope environments of Johnston Island, Pacific Island Areas, Central Pacific. These data provide coverage between 10 and 5000 meters. The backscatter dataset includes data collected using Simrad EM300 and Reson 8101 multibeam sonars. The sonars frequencies are 30 kHz and 240 kHz respectively and the backscatter data from each sonar are processed and gridded separately. These metadata are for the 5 m grid cell size Simrad em300 multibeam backscatter data only.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
In spring 1998, studies were initiated to assess the ecological impacts of the invasive nonnative species leafy spurge Euphorbia esula on rangeland and natural areas in the northern Great Plains, and to evaluate the effectiveness of biocontrol insects released to reduce spurge populations. The primary objectives of the study were: 1 to conduct a vegetation survey to describe the composition and relative abundance of plant species on study sites, determine species dominance within the community and construct initial diversity indices such as species richness, 2 to determine the density and stage distribution of leafy spurge on permanent plots, and 3 to determine the abundance and distribution of biocontrol insects. Overall diversity tended to be relatively low, with all sites averaging less than nine species per 1 squaremeter plot. All sites were dominated by introduced species, with native forbs and grasses occupying less important roles in the community structure. In 1999, we will determine the extent to which the seed banks at the sites reflect the current abundance of native and exotic species.
Published By Department of Veterans Affairs
Issued over 9 years ago
Summary
Description
This report uses data from the 2010 American Community Survey to compare the demographic and socioeconomic characteristics of Veterans and non-Veterans who live in rural areas. It also compares rural and urban Veterans. The additional tables provided here show rural Veterans by state for the total population and by period of service.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
As a tool to support NOAA's new partnership with the renowned science museum, the Exploratorium, and in collaboration with the Central and Northern California Ocean Observing System and other regional data providers, NOAA has developed a Web page to make it easy to visualize near-real time data in San Francisco Bay. The interface uses Google Maps and the latest AJAX technology to combine and compare data from diverse sources. Users are able to visualize water temperature, salinity, and other station-based measurements along with overlays of satellite measurements of Sea Surface Temperature (SST) and radar measurements of currents. Users are also able to compare time series of measurements from various stations and sources.
Published By Department of Justice
Issued over 9 years ago
Summary
Description
The Census of Juveniles in Residential Placement is administered by the U.S. Bureau of the Census for the Office of Juvenile Justice and Delinquency Prevention. This data collection provides the nation with the most detailed picture of juveniles in custod
Published By Department of Homeland Security
Issued over 9 years ago
Summary
Description
Web-based personnel system processing