News Article | May 16, 2017
"IAP will proudly deliver world-class service to the Indiana National Guard at its marquis cyber range at the Atterbury complex," stated Rob Hargis, Vice President of IAP National Security and Technology. "Supporting the nation's cyber-preparedness highlights our talented core National Security Programs Information Technology practice and reflects our ongoing commitment to ensure success for our customers." Muscatatuck is the only Advanced Urban Training Facility within the Department of Defense portfolio and is operated by the Indiana National Guard. The center features a 1,000 acre urban training facility located near Butlerville, Indiana. It is also home to the Office of the Secretary of Defense (OSD), Civilian Expeditionary Workforce (CEW), and Defense Security Cooperation Agency (DSCA), Ministry of Defense Advisor (MoDA) Program; supporting contingency missions worldwide. Muscatatuck's unique training environment is used to train civilian first responders, Inter-Agency, Joint civilian/military response operations, and military urban warfare. "The IAP team is thrilled to support a rapidly evolving Cyber mission as well as the diverse customers that will use the Urban Training Facility. We are committed to the Indiana National Guard, and are committed to placing them in an ideal position in support of our nation," said Brandon Pugsley, Senior Director of IAP Information Technology and Intelligence Programs. The Army's selection recognizes IAP's proven expertise delivering value-added global solutions including design engineering, aviation solutions, mission critical support, and expeditionary solutions in the National Security and Technology industry. A leading international services company for more than 65 years, IAP provides a broad spectrum of services and solutions to U.S. and international government agencies, and organizations. A world-class leader in providing seasoned program management, IAP leverages and integrates its capabilities to provide safe, innovative, and reliable solutions to meet customers' diverse and complex challenges. With 2,500 team members, IAP operates in more than 110 locations in 27 countries worldwide and maintains offices in the Washington D.C. area, Florida, Maryland, Oklahoma, the United Kingdom, and the Middle East. Learn more at www.iapws.com. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/indiana-national-guard-selects-iap-expertise-to-support-growing-cyber-mission-300458625.html
News Article | May 26, 2017
"We are ready to continue to serve our customer communities on this expanded contract vehicle, giving military customers greater access and the flexibility to acquire IAP's diverse capabilities and services," said Doug Kitani, IAP Worldwide Services CEO and Director. "IAP is proud to serve our customers around the world who rely on us to deliver ingenious solutions to their most demanding challenges. Our selection to support the Department of Defense is in keeping with the high standard and expertise to make our customers' missions our mission," Kitani added. IAP's history of performance with CECOM under the predecessor contracts CECOM R2 and R2-3G dates back to 2003. The Army's award decision recognizes IAP's proven expertise in delivering value-added global solutions in the areas of IT and communications, aviation support, life support services, and expeditionary solutions throughout the defense industry. A leading international services company for more than 65 years, IAP provides a broad spectrum of services and solutions to U.S. and international government agencies, and organizations. A world-class leader in providing seasoned program management, IAP leverages and integrates its capabilities to provide safe, innovative, and reliable solutions to meet customers' diverse and complex challenges. With more than 2,500 team members, IAP operates in more than 110 locations in 27 countries worldwide and maintains offices in the Washington D.C. area, Florida, Maryland, Oklahoma, the United Kingdom, and the Middle East. Learn more at www.iapws.com. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/iap-selected-to-support-37-billion-us-army-contract-300464632.html
Sauerborn M.,Solar Institute Julich SIJ |
Liebenstund L.,Institute for Applied Polymer Science IAP |
Raue M.,IAP |
Mang T.,IAP |
And 2 more authors.
AIP Conference Proceedings | Year: 2017
The Solar-Institute Jülich (SIJ) developed the micro heliostat system - a small sized heliostat - during the last years. One special performance of the micro heliostat is the option to integrate inexpensive plastic elements. The use of plastic as a cost reducer in the heliostat technique is also offering the chance to integrate complex designed components with a higher quality and special system function. The plastic for this application requires a high standing against UV radiation and thermal cycles with a daily extreme temperature variation. The temperature range inside the closed micro heliostat box can annually fluctuate between -20 °C and 80 °C in the worst case. Special aging tests were designed and performed for the first time in cooperation with the Institute for Applied Polymer Science (IAP) in order to identify and qualify a resistance plastic for the micro heliostat. This systematic plastic aging testing for the micro heliostat is introduced here. The tests were carried out under extreme ambient situations, which simulate the temperature and irradiation conditions that the heliostat has to stand for years. A particular climate of arid areas with continuous high solar radiation was defined for these tests. Two accelerating aging methods were adapted to reach adequate aging results in a reduced time. The aging of the investigated kinds of plastics were followed by tensile test, impact test, measuring Shore hardness, dynamic-mechanical analysis, differential scanning calorimetry and Fourier transform infrared spectroscopy to compare the different types of polymers. Parallel to these tests running real outdoor tests were performed, to control this accelerated aging. To have adequate conditions that the plastic in a micro heliostat has to stand, an identical closed test box with a glass cover was designed. The test samples inside the box were irradiated by the sun. The wanted forecast for the analyzed plastic was defined by the comparison of the real and the accelerated aging results. © 2017 Author(s).
Monthly Notices of the Royal Astronomical Society | Year: 2017
The reconstruction of the cosmic horseshoe gravitational lens using the perturbative method reveals the presence of significant third-order terms. The presence of these higher order terms is apparent in the numerical expansion of the perturbative fields in Fourier series. The expansion of the fields at order 2 produces a higher value of the chi-square. Expanding at order 3 provides a very significant improvement, while order 4 does not bring a significant improvement over order 3. The presence of the order 3 terms is not a consequence of limiting the perturbative expansion to the first order. The amplitude and signs of the third-order terms are recovered by including the contribution of the other group members. This analysis demonstrates that the fine details of the potential of the lens could be recovered independently of any initial assumptions by using the perturbative approach. © 2017 The Authors.
Bozyk L.,Helmholtz Center for Heavy Ion Research |
Chill F.,IAP |
Kester O.,IAP |
Spiller P.,Helmholtz Center for Heavy Ion Research
6th International Particle Accelerator Conference, IPAC 2015 | Year: 2015
The synchrotron SIS100 of the planned FAIR facility will provide heavy ion beams of highest intensities. The required low charge states are subject to enhanced charge exchange processes in collisions with residual gas molecules. Therefore, highest vacuum quality is crucial for a reliable operation and minimal beam loss. The generation of the required low gas densities relies on the pumping capabilities of the cryogenic beam pipe walls. Most typical gas components in ultra high vacuum are bound by cryocondensation at LHe temperatures, resulting in ultimate low pressures with almost infinite pumping capacity. Hydrogen can not be crycondensated to acceptable low pressures. But if the surface coverage is sufficiently low, it can get bound by cryoadsorption. The pumping capabilities of cryogenic walls for Hydrogen have been investigated for SIS100-like conditions. The measurement results have been used in dynamic vacuum simulations at heavy ion operation. The simulation results are presented. Copyright © 2015 CC-BY-3.0 and by the respective authors.
Salvaterra R.,Istituto di Astrofisica Spaziale e Fisica Cosmica |
Haardt F.,University of Insubria |
Haardt F.,National Institute of Nuclear Physics, Italy |
Volonteri M.,IAP |
Moretti A.,National institute for astrophysics
Astronomy and Astrophysics | Year: 2012
We place firm upper limits on the global accretion history of massive black holes at z > 5 from the recently measured unresolved fraction of the cosmic X-ray background. The maximum allowed unresolved intensity observed at 1.5 keV implies a maximum accreted-mass density onto massive black holes of ρ acc < 1.4 × 10 4 M Mpc -3 for z > 5. Considering the contribution of lower-z AGNs, the value reduces to ρ acc < 0.66 × 10 4 MMpc -3. The tension between the need for the efficient and rapid accretion required by the observation of massive black holes already in place at z > 7 and the strict upper limit on the accreted mass derived from the X-ray background may indicate that black holes are rare in high redshift galaxies or that accretion is only efficient for the black holes hosted by rare galaxies. © 2012 ESO.
Donges J.,German Electron Synchrotron |
Rothkirch A.,German Electron Synchrotron |
Wroblewski T.,German Electron Synchrotron |
Bjeoumikhov A.,IfG |
And 4 more authors.
Materials Science Forum | Year: 2014
Position resolved structural information from polycrystalline materials is usually obtained via micro beam techniques illuminating only a single spot of the specimen. Multiplexing in reciprocal space is achieved either by the use of an area detector or an energy dispersive device. Alternatively spatial information may be obtained simultaneously from a large part of the sample by using an array of parallel collimators between the sample and a position sensitive detector which suppresses crossfire of radiation scattered at different positions in the sample. With the introduction of an X-ray camera based on an energy resolving area detector (pnCCD) we could combine this with multiplexing in reciprocal space. © (2014) Trans Tech Publications, Switzerland.
Ghisellini G.,National institute for astrophysics |
Haardt F.,University of Insubria |
Haardt F.,National Institute of Nuclear Physics, Italy |
Della Ceca R.,National institute for astrophysics |
And 3 more authors.
Monthly Notices of the Royal Astronomical Society | Year: 2013
In powerful radio-quiet active galactic nuclei (AGN), the bulk of the population of black holes heavier than one billion solar masses form at a redshift ~ 1.5-2. Supermassive black holes in jetted radio-loud AGN seem to form earlier, at a redshift close to 4. The ratio of active radio-loud to radio-quiet AGN hosting heavy black holes is therefore a strong function of redshift. We report on some recent evidence supporting this conclusion, gathered from the Burst Alert Telescope (onboard Swift) and by the Large Area Telescope (onboard Fermi). We suggest that the more frequent occurrence of relativistic jets in the most massive black holes at high redshifts could be due to the average black hole spin being greater in the distant past, or else due to the jet helping a fast accretion rate (or some combination of the two scenarios). We emphasize that the large total accretion efficiency of rapidly spinning black holes inhibits a fast growth, unless a large fraction of the available gravitational energy of the accreted mass is not converted into radiation, but used to form and maintain a powerful jet. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
Vierinen J.,Massachusetts Institute of Technology |
Chau J.L.,IAP |
Pfeffer N.,IAP |
Clahsen M.,IAP |
Atmospheric Measurement Techniques | Year: 2016
The concept of a coded continuous wave specular meteor radar (SMR) is described. The radar uses a continuously transmitted pseudorandom phase-modulated waveform, which has several advantages compared to conventional pulsed SMRs. The coding avoids range and Doppler aliasing, which are in some cases problematic with pulsed radars. Continuous transmissions maximize pulse compression gain, allowing operation at lower peak power than a pulsed system. With continuous coding, the temporal and spectral resolution are not dependent on the transmit waveform and they can be fairly flexibly changed after performing a measurement. The low signal-to-noise ratio before pulse compression, combined with independent pseudorandom transmit waveforms, allows multiple geographically separated transmitters to be used in the same frequency band simultaneously without significantly interfering with each other. Because the same frequency band can be used by multiple transmitters, the same interferometric receiver antennas can be used to receive multiple transmitters at the same time. The principles of the signal processing are discussed, in addition to discussion of several practical ways to increase computation speed, and how to optimally detect meteor echoes. Measurements from a campaign performed with a coded continuous wave SMR are shown and compared with two standard pulsed SMR measurements. The type of meteor radar described in this paper would be suited for use in a large-scale multi-static network of meteor radar transmitters and receivers. Such a system would be useful for increasing the number of meteor detections to obtain improved meteor radar data products. © Author(s) 2016.
Prol-Ledesma R.M.,National Autonomous University of Mexico |
Arango-Galvan C.,National Autonomous University of Mexico |
Natural Resources Research | Year: 2016
Changes in legislation have opened the Mexican geothermal resources for exploitation to private companies; therefore the evaluation of the known geothermal areas has a high priority to plan further exploitation and possibly the expansion of the well fields. The calculation of the remaining productivity of geothermal fields currently in exploitation can be achieved with less uncertainty using the parameters obtained from production and injection wells, as well as the production efficiency of the installed plants. No information about previous volumetric evaluation is available for the fields presently being exploited, and there is the possibility that they may support an increase in their energy output or extend further their production life. The most widely used calculation technique is the USGS volumetric method that requires the knowledge of parameters that can be measured only after exploitation started. Heat in place-volumetric evaluation was undertaken for two fields in Mexico: Cerro Prieto and the Las Tres Vírgenes geothermal fields, using all information obtained by exploration surveys and exploitation drilling. The obtained values allow planning a possible expansion of the fields based on their estimated mean potential output that is 1397 MWe for Cerro Prieto and 48 MWe for Las Tres Vírgenes compared to the presently installed capacity of 580 MWe. © 2016 The Author(s)