The Lunar Surface and its Temperature

An analytic function of lunar surface temperature for exospheric modeling

a Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA Goddard Planetary Heliophysics Institute, University of Maryland Baltimore County, 21228, USA c Southwest Research Institute, San Antonio, TX 78228, USA University of California, Los Angeles, CA 90095, USA e Jet Propulsion Laboratory, Pasadena, CA 91109, USA Heliophysics Science Division, NASA Goddard Space Flight Cent...

the survey of the virtual higher education in iran and the ways of its development and improvement

این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.

The Composition of the Lunar Surface Relative to Lunar Samples

Introduction: The non-mare pristine samples are divided into two major suites, the ferroan anorthosites (FAN) and the Mg-suite [1]. FAN is typically characterized by high values of plagiophile interelement ratios, for example, the calcium content of plagioclase, and very high plagioclase content (though more mafic members exist). FAN is well separated from the Mgsuite on a plot of Mg-number vs....

Evidence for surface water ice in the lunar polar regions using reflectance measurements from the Lunar Orbiter Laser Altimeter and temperature measurements from the Diviner Lunar Radiometer Experiment

We find that the reflectance of the lunar surface within 5 ° of latitude of the South Pole increases rapidly with decreasing temperature, near ∼110 K, behavior consistent with the presence of surface water ice. The North polar region does not show this behavior, nor do South polar surfaces at latitudes more than 5 ° from the pole. This South pole reflectance anomaly persists when analysis is li...

The Lunar Surface Gravimeter as a Lunar Seismograph