نتایج جستجو برای: 1260 lunar years
تعداد نتایج: 998433 فیلتر نتایج به سال:
Each year the Moon is bombarded by about 10 kg of interplanetary micrometeoroids of cometary and asteroidal origin. Most of these projectiles range from 10 nm to about 1 mm in size and impact the Moon at 10–72 km/s speed. They excavate lunar soil about 1000 times their own mass. These impacts leave a crater record on the surface from which the micrometeoroid size distribution has been deciphere...
OBJECTIVE To describe the behavior of mortality in Mexico through four indicators from 1990 to 2012. MATERIAL AND METHODS The official mortality and population records of Mexico were used. RESULTS An advance was achieved for children under five years of age, with a decrease in mortality, although there was an increase in the years of potential life lost (YPLL) from 2008 for this age group. ...
published in: Lunar and Planetary Science XL, CD-ROM, Lunar and Planetary Institute, Houston (2009). 1073.pdf 40th Lunar and Planetary Science Conference (2009)
On 14 September 2007, the first Japanese large-scaled lunar explorer “Kaguya” (SELENE), developed by JAXA (Japan Aerospace and Exploration Agency) was launched. Kaguya successfully reached moon in October 2007, and started nominal operation from 21 December 2007, As of the end of April 2008, Kaguya is conducting lunar surface observation from lunar polar orbit. Kaguya will acquire large amount ...
The paper researched and presented a virtual simulation system based on a full-digital lunar terrain, integrated with kinematics and dynamics module as well as autonomous navigation simulation module. The system simulation models are established. Enabling technologies such as digital lunar surface module, kinematics and dynamics simulation, Autonomous navigation are investigated. A prototype sy...
BACKGROUND Transcutaneous exposure to food allergens can lead to food sensitization (FS)/food allergy (FA). We measured skin barrier function in early infancy and related it to the later development of FS/FA at age 2 years. OBJECTIVE We sought to examine the relationship between early life skin barrier function and FA in infancy. METHODS Infants in the Babies After Scope: Evaluating the Lon...
Lunar volcanic deposits are dominated by areally extensive mare units occurring in regionally low areas predominantly on the lunar near side. Data obtained from lunar orbit and earth-based observations have been used to extend the detailed characterizations derived from Apollo and Luna sample return missions to other parts of the moon. Mare volcanism occurred over a period of about 1.3 billion ...
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