Abstract: This paper presents a tutorial on the Tracking, Telemetry, and Command (TT&C) for spacecraft and satellite missions. In particular, it provides a thorough summary of the design of the TT&C, ...

Learn how to draw a jaguar that looks strong, realistic, and full of wild energy with this step by step tutorial. This lesson ...

Vitamin C (ascorbic acid) is widely promoted for supporting collagen production and skin health, yet little is known about how oral intake changes dermal or epidermal ascorbate concentrations. A new ...

When the Dragon Bravo Fire jumped its containment lines and overran the historic Grand Canyon Lodge on the North Rim in July, some observers were heartened by the sight of the lodge’s stonework still ...

Only a small portion of the city’s restaurants have applied for permits to set up dining structures under new regulations. Owners say the process is complex and expensive. By Olivia Bensimon When New ...

College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

ABSTRACT: We study the dynamics of a two-electron atom interacting with a pulsed, elliptically polarized, ultrashort, excited coherent state. We use path integral methods and integrate on the photonic ...

ABSTRACT: Plato placed great importance on the natural number one. Plato stated that the three properties of Plato’s one are indivisible, invariable, and equal and that an ideal one has no physical ...