Anatoy of a Robot

... outlines a coordinated approach to the selection of a processor, a battery, a power supply, operating software, and appli- cation software. Included are many software techniques that have proven successful, ... Sam’s nominal reward was a kit for a bigger robot, but I think he walked away with much more than that. After the race, Sam was eager to know how I knew the solution. I...

Ngày tải lên: 27/10/2013, 22:15

... the data under real time constraints. These constraints often lead to a degradation of the accuracy and the richness of the information. Some constraints are added to the intrinsic draw- backs of ... maximum angular speed of each wheel of the robot (1.58 rad/s). By applying this method, a satura- tion of the growth of the weights is obtained without any degradation of th...

Ngày tải lên: 23/10/2013, 15:15

... log as the most up to date ‘‘truth’’ aboutthe state of the data on disk. The main difference is thatdatabase systems do not use the log as the final repositoryfor data: a separate data area is ... simulator runsuntil all clean segments are exhausted, then simulates theactions of a cleaner until a threshold number of clean seg-ments is available again. In each run the simulator wasa...

Ngày tải lên: 12/09/2012, 15:05

... nature to a data manager which fails to freedata, but is easier to detect and prevent.• Data manager changes data. A malicious data manager may change the value of its data on each cacherefresh. ... starvation by errant data managers.Because the interface to the default pager is identical to other external data managers, there are no fundamentalassumptions made about the nature of sec...

Ngày tải lên: 12/09/2012, 15:05

... three times the amount of data as TDMA•Transmissions are much harder to eavesdrop on A would-be eavesdropper must also know the exact chip in which the transmission starts 20Transmission Direction•Simplex ... (TDMA)–Divides the transmission time into several slots–Each user is assigned the entire frequency for the transmission•For a fraction of time on a fixed, rotating basis–Advanta...

Ngày tải lên: 13/09/2012, 10:52

... Iliffe was Professor of African History at the University of Cambridge and is aFellow of St. John’s College. He is the author of several books on Africa, includingAmodern history of Tanganyika and ... and created maritimelinks with eastern and central Africa. Yet this path of historical developmentwas aborted by a population catastrophe, the Black Death, which threw NorthAfrica...

Ngày tải lên: 21/09/2012, 10:39