We develop and evaluate humanoid balance controllers that can recover from unexpected external perturbations of varying magnitudes in arbitrary directions. Balance strategies explored include ankle and hip strategies for in-place balance, as well as single-step, double-step, and multi-step balance recovery. Simulation results are provided for a 30 DOF humanoid.

Due to the limitations of flash memory, such as asymmetric I/O latencies and not-inplace update, two kinds of buffer replacement algorithms exist, namely page-clustered policy and group-clustered policy. The former organizes pages in the page-level, which makes it easy to deal with hot pages, but shows a bad performance when the buffer size is big enough. The latter organizes pages in the group...

 In this work, effects of homogenization time of 3 to 13 h at 1200 °C on the grain refinement of as-cast AISI 301 stainless steel after different hot rolling conditions were investigated. The results showed that the minimum grain size of 16±7 mm was achieved when homogenization took place at 1200 °C for 9 h followed by hot rolling at temperature range of 1000–1200 °C with strain of 0.8 and stra...

Objectives: Design and estimate the impacts of a prevention program for part 1 violent crimes in micro-place crime hot spots. Methods: A longitudinal study of crime hot spots using 21 years of crime offense report data on part 1 violent crimes from Pittsburgh, Pennsylvania. Based on kernel density smoothing for a definition of micro-place crime hot spots, we replicate past work on the existence...

Phase change memory (PCM) is the best candidate device among next generation random access memory technologies. PCM has a potential to replace Flash memory due to non-volatility and in-place programmability, and low power consumption. Even though lifetime of PCM is longer than flash memory, wear leveling is needed because of non-uniformity of storage workload or malicious attack. In this paper,...

Objectives: Design and estimate the impacts of a prevention program for part 1 violent crimes in micro-place crime hot spots. Methods: A longitudinal study of crime hot spots using 21 years of crime offense report data on part 1 violent crimes from Pittsburgh, Pennsylvania. Based on kernel density smoothing for a definition of micro-place crime hot spots, we replicate past work on the existence...