We experimentally investigate the properties of radio-frequency-dressed potentials for Bose-Einstein condensates on atom chips. The three-dimensional potential forms a connected pair of parallel waveguides. We show that rf-dressed potentials are robust against the effect of small magnetic-field variations on the trap potential. Long-lived dipole oscillations of condensates induced in the rf-dre...

The silicon micromechanical gyroscope, which will be introduced in this paper, represents a novel MEMS gyroscope concept. It is used for the damping of a single-channel control system of rotating aircraft. It differs from common MEMS gyroscopes in that does not have a drive structure, itself, and only has a sense structure. It is installed on a rotating aircraft, and utilizes the aircraft spin ...

This paper presents a new object oriented framework DAMPVM/DAC which is implemented on top of DAMPVM and provides automatic partitioning of irregular divide-and-conquer (DAC) applications at runtime. The processes are then mapped dynamically to processors taking into account their speeds and even loads by other user processes. The paper presents the programming interface (API) of the framework,...

An intrusion detection system (IDS) is a security layer that is used to discover ongoing intrusive attacks and anomalous activities in information systems, which means usually working in a dynamically changing environment. Although increasing attention to IDSs is evident in the literature, network security administrators are still faced with the task of analyzing enormous numbers of alerts prod...

Gyroscopes are instruments capable of sensing changes in their inertial orientation. Satellites usually have gyroscopes within their Attitude and Orbit Control System as attitude (orientation) sensors that measure angular displacements. They are critical components and constantly monitored during the duration of the mission. In face of serious failures, proper corrective actions are possible, b...

This paper presents the design and application of a lever coupling mechanism to improve the shock resistance of a dual-mass silicon micro-gyroscope with drive mode coupled along the driving direction without sacrificing the mechanical sensitivity. Firstly, the mechanical sensitivity and the shock response of the micro-gyroscope are theoretically analyzed. In the mechanical design, a novel lever...

0167-9317/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.mee.2012.02.022 ⇑ Corresponding author. Tel.: +82 31 219 2488; fax E-mail address: [email protected] (K. Lee). This study proposes a new dual-axis sensing gyroscope based on SAW (surface acoustic wave), in which two substrates are bonded together and completely sealed. The gyroscope on the bottom substrate is used fo...

Realizing visionary concepts of integrated photonic circuits, nanospectroscopy, and nanosensing will tremendously benefit from dynamically tunable coherent light sources with lateral dimensions on the subwavelength scale. Therefore, we demonstrate an individual nanowire laser based device which can be gradually tuned by reversible length changes of the nanowire such that uniaxial tensile stress...

Stopping light in technologically relevant systems, such as photonic crystals, has important implications for various optical information processing tasks, including buffering and nonlinear signal processing. The initial theoretical proposal for such a system requires tuning many resonators and has not yet been implemented. Recent experimental studies instead used either one or two dynamically ...