Anharmonic thermal effects on the electron momentum distribution of a lithium fluoride single crystal are experimentally measured through high-resolution Compton scattering and theoretically modeled with ab initio simulations, beyond the harmonic approximation to the lattice potential, explicitly accounting for thermal expansion. Directional Compton profiles are measured at two different temper...

A N I M A L breeders often select the extreme individuals in a population. This may conflict with natural selection for reproductive fitness. For example, chickens with intermediate body weights and egg weights usually have the highest hatchability. LATTER and ROBERTSON ( 1962) hypothesized that the decline in fitness with selection for a metric trait is a consequence of gene frequency changes ...

microalloyed s355n steel plates are extensively used in bridge and high-rise building structures. one ofthe factors affecting the mechanical properties is the size and morphology of inclusions. in this research,microalloyed s355n steel plates with different sizes of inclusions were examined. one contained longmanganese sulfide inclusions (li material) and the other had short ones (si material)....

ACR: An Adaptive Communication-Aware Routing through Maximally Zone-Disjoint Shortest Paths in Ad Hoc Wireless Networks with Directional Antenna Tetsuro Ueda, Shinsuke Tanaka, Bokuji Komiyama ATR Adaptive Communication Research Laboratories 2-2-2 Hikaridai, Seika-cho Soraku-gun, Kyoto 619-0288 JAPAN e-mail: {teueda, shinsuke, komiyama}@atr.jp Tel: +81-774-95-1529 Fax: +81-774-95-1509 Siuli Roy,...

Directional antennas have been proposed to improve the performance and capacity of Wireless MAC protocols for use in Mobile Ad hoc Networks (MANETs). Such antennas focus their beams in the direction of their receiver, allowing more of the signal power to be used in the direction of the transmission and simultaneously reducing the interference in other directions. However, several challenges and...

Abstract In this paper we propose a framework for fuzzy clustering of time series based on directional volatility spillovers. the case financial series, detecting clusters spillovers provides insights into market structure, which can be useful to both portfolio managers and policy makers. We measure directional—i.e. “From” “To” others—volatility with methodology generalized forecast-error varia...

In this project report, we design a MAC protocol for direction-t0-directional (DtDMAC) transmission. We study the issues that face this type of transmission and then design an efficient protocol that is derived from the IEEE 802.11 DCF MAC protocol to address these issues. We present some preliminary simulation results that prove the feasibility of the proposed protocol.