Новости за 11.05.2017

Abstract: A breakup of the Titan 3C-17 Transtage rocket body was reported to have occurred on June 4th, 2014 at 02:38 UT by the Space Surveillance Network (SSN). Five objects were associated with this breakup and this is the fourth breakup known for this class of object. There are likely many more objects associated with this event that are not within the Space Surveillance Network's ability to detect and have not been catalogued. Several months after the breakup, observing time was obtained on... Читать дальше...

Abstract: We present an overview of the approach to in-flight calibration, which is a coordinated effort between the University of California Los Angeles (UCLA), Space Research Institute, Graz, Austria (IWF) and the NASA Goddard Space Flight Center (GSFC). We present details of the calibration effort at GSFC. During the first dayside season of the Magnetospheric Multiscale (MMS) mission, the in-flight calibration process for the Fluxgate magnetometers (FGM) implemented an algorithm that selected... Читать дальше...

Abstract: The NASA Space Radiation Laboratory (NSRL) facility has been used successfully for many years to generate ion beams for radiation research experiments by NASA investigators. Recently, modifications were made to the beam lines to allow rapid switching between different types of ions and energies, with the aim to simulate the Galactic Cosmic Rays (GCR) environment. As this will be a focus of space radiation research for upcoming years, the stochastic radiation track structure code RITRACKS... Читать дальше...

Abstract: No abstract available

Abstract: NASA limits astronaut radiation exposures to a 3% risk of exposure-induced death from cancer (REID) at the upper 95% confidence level. Since astronauts approach this limit, it is important that the estimate of REID be as accurate as possible. The NASA Space Cancer Risk 2012 (NSCR-2012) model has been the standard for NASA's space radiation protection guidelines since its publication in 2013. The model incorporates elements from U.S. baseline statistics, Japanese atomic bomb survivor research,...

Abstract: No abstract available

Abstract: Long-term models, such as NASA's LEGEND (LEO-to- GEO Environment Debris) model, are used to make predictions about how space activities will affect the manner in which the debris environment evolves over time. Part of this process predicts how spacecraft and rocket bodies will be launched and remain in the future environment. This has usually been accomplished by repeating past launch history to simulate future launches. The NASA Orbital Debris Program Office (ODPO) has conducted a series... Читать дальше...

Abstract: No abstract available

Abstract: Launching, landing, flight route, expeditions, Soyuz, near Kazakhstan USOS Crew Surgeon -Quarantine and direct care to crew before launch, then present in close proximity to launch for abort. IP Crew Surgeon -same Deputy Crew Surgeon -Back up for crew surgeon, care for immediate family, stationed at airport for helicopter abort response Russian based US doctor -Coordinate with SOS staff USOS Crew Surgeon -Nominal helicopter response and initial medical care and support during return on... Читать дальше...

Abstract: NASA has begun a process to identify and discuss candidate locations where humans could land, live and work on the martian surface. This process is being carried out as a cooperative effort by NASA's Human Exploration and Operations Mission Directorate (HEOMD), responsible for future human mission preparations, and the Science Mission Directorate (SMD), responsible for the on-going Mars Exploration Program of robotic vehicles in orbit and on the surface of Mars. Both of these Directorates... Читать дальше...

Abstract: Three-dimensional/3-D organotypic models of human intestinal epithelium mimic the differentiated form and function of parental tissues often not exhibited by 2-D monolayers and respond to Salmonella in ways that reflect in vivo infections. To further enhance the physiological relevance of 3-D models to more closely approximate in vivo intestinal microenvironments during infection, we developed and validated a novel 3-D intestinal co-culture model containing multiple epithelial cell types... Читать дальше...

BA PP FuryClay WHBK 13 (Tennis Shoes)

Clay court players will love the Babolat Propulse Fury clay tennis shoe. This high performance shoe for players who don't want to hold back offers the traditional herringbone tread pattern for clay co...

Regular Price: CDN$179.95
Your Price: CDN$125.97
You Save: CDN$53.98 (30%)

Availability: In Stock

GT PWR Speed Tennis Racquets (Adult Tennis Racquets)

Another powerful frame from the Speed line, the Head PWR Speed tennis racquet is a favorite for players that have shorter, compact swing styles and enjoy power and comfort at their fingertips. The ov...

Regular Price: CDN$239.95
Your Price: CDN$169.95
You Save: CDN$70.00 (29%)

Availability: In Stock

Abstract: Air Data Systems (FADS) are becoming more prevalent on re-entry vehicles, as evi- denced by the Mars Science Laboratory and the Orion Multipurpose Crew Vehicle. A FADS consists of flush-mounted pressure transducers located at various locations on the fore-body of a flight vehicle or the heat shield of a re-entry capsule. A pressure model converts the pressure readings into useful air data quantities. Two algorithms for converting pressure readings to air data have become predominant- the... Читать дальше...

Abstract: Rocket bodies comprise a class of human-made space debris that are at the same time essential for launching every spacecraft from the Earth, but are also a significant source of debris both as intact objects, as well as fragmented debris. Unspent fuel has been long theorized as a potential cause of catastrophic rocket body break-ups. Given typical orbital speeds range from approximately 2-3 kilometers per second at Geosynchronous Orbit (GEO) and up to 15 kilometers per second in low Earth... Читать дальше...

THERE is a familiar scene in westerns where the cavalry is riding through the mountain pass and the captain says "I don't like it. It's quiet. Too quiet." Seconds later, a soldier gets an arrow in his chest and all hell breaks loose. Some people feel that about markets at the moment.

Abstract: The Mars Science Laboratory Curiosity rover landed in Gale crater in August 2012 to investigate the strata of lower Aeolis Mons (i.e., Mount Sharp) and characterize their depositional and diagenetic environments. Visible/short-wave infrared spectra from orbit of these strata show variations in phyllosilicate, sulfate, and Fe-oxide minerals, suggesting these units record environmental changes that occurred during the early Hesperian. Curiosity has traversed over 15 km and has climbed through... Читать дальше...

Abstract: We have observed the geosynchronous orbit (GEO) debris population at sizes smaller than 10 cm using optical observations with the 6.5-m Magellan telescope 'Walter Baade' at the Las Campanas Observatory in Chile. The IMACS f/2 imaging camera with a 0.5-degree diameter field of view has been used in small area surveys of the GEO regime to study the population of optically faint GEO debris. The goal is to estimate the population of GEO debris that is fainter than can be studied with 1-meter... Читать дальше...

Gulbuddin Hekmatyar, one of Afghanistan’s most prominent Islamist leaders, is back in Kabul as part of a comprehensive peace deal with the government after more than two decades of self-imposed exile.

Prime Minister Shinz Abe wants 2020 to be the year that Japans military becomes enshrined in its Constitution.

Abstract: No abstract available

Take control of your tan as GQ provides you with all the best self-tanners on the market.

Abstract: NASA's Human Research Program (HRP) on ISS. Conducting research for safe, productive human space travel and for astronauts to remain healthy during and after extended space travel.

Fake the bake and shun the sunbed with an effective complexion-enhancer