Crab cavities were installed in KEKB in 2007. The function of the cavity is to tilt the bunch of the beam in the longitudinal direction. But if the RF phase gets out of control, the cavity kicks the beam like a steering magnet. To avoid this unwanted kick, the RF phase must be controlled well. In the beam operation, some disturbances may occur such as a discharge, a quench, etc. When such distu...

Abstract A direct design method for abort trajectory based on the quasi-lambert problem is proposed. The re-entry constraint analytically addressed via a instead of variables iteration and optimization in past. Then new parameter introduced to determine plane. exact solution determined by differential correction initial solution. Numerical simulation carried out test validity efficiency method....

I discuss the prospects for a fixed target physics program at the AGS in the RHIC era.

In a simultaneous paired approach to closely-spaced parallel runways, a pair of aircraft flies in close proximity on parallel approach paths. The aircraft pair must maintain a longitudinal separation within a range that avoids wake encounters and, if one of the aircraft blunders, avoids collision. Wake avoidance defines the rear gate of the longitudinal separation. The lead aircraft generates a...

The design concept for the integration of the target and the focusing horn system for the proposed BNL neutrino oscillation experiment is described in this paper. Also presented are issues associated with the functionality and thermo-mechanical response of the selected target intercepting the 28 GeV protons of the 1 MW upgraded AGS beam, the loading and mechanical response of the focusing horn ...

One of three women has experienced violence, including that perpetrated by their partners. Violence against is a violation rights and terrible impacts on health reproduction. This research aims to understand the reproductive who have violence. study uses qualitative methods narrative stories from survivors partner Informants were obtained in manner directly researchers also through Women Crisis...

Neospora caninum is an important cause worldwide of abortion, stillbirth and calves born weak. Abortion is the major clinical sing associated to Neospora caninum infection, it typically occurs between months four to seven of gestation, but may occur from three months to term. Abortions tend to occur during mid-gestation and it appears that foetuses exposed in early gestation are more likely to ...

Transactional memory (TM) is an inherently optimistic abstraction: it allows concurrentprocesses to execute sequences of shared-data accesses (transactions) speculatively, with anoption of aborting them in the future. Early TM designs avoided using locks and relied onnon-blocking synchronization to ensure obstruction-freedom: a transaction that encounters nostep contention is no...

Recently, several works have taken advantage of a database isolation notion suitable for replicated approaches, called Generalized Snapshot Isolation, that provides greater performance since read-only transactions are never blocked nor cause update transactions to block or abort. However, this concept has not been formally described for replicated environments where a logical copy of the system...

The workshop The Helicity Structure of the Nucleon (BNL June 5, 2006) was organized as part of the 2006 RHIC & AGS Users’ Meeting to review the status of the spin problem and future directions. The presentations can be found at [1]. Recent data suggest small polarized glue and strangeness in the proton. Here we present a personal summary of the main results and presentations. What is new and ex...