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According to the theory of constraints (TOC), bottleneck should be made full use while non-bottleneck should be subordinate to the bottleneck. However, for the multi-bottleneck permutation flow-shop scheduling problem (PFSP), different bottleneck causes different driving force resulting in different even conflicted scheduling solution. Aiming at this problem, the multi-objective mathematical model...
In this paper we present the distributed overlay anycast table, a structured overlay that implements application-layer any cast, allowing the discovery of the closest host that is a member of a given group. One application is in locality-aware peer-to-peer networks, where peers need to discover low-latency peers participating in the distribution of a particular file or stream. The DOAT makes use of...
This work presents a 32 nm SOI CMOS technology featuring high-k/metal gate and an SRAM cell size of 0.149 mum2. Vmin operation down to 0.6 V in a 16 Mb SRAM array test vehicle has been demonstrated. Aggressive ground rules are achieved with 193 nm immersion lithography. High performance is enabled by high-k/metal gate plus innovation on strained silicon elements including embedded SiGe and dual stress...
At the 22 nm node, we estimate that superior electrostatics and reduced junction capacitance in FinFETs may provide a 13~23% reduction in delay relative to planar FETs. However, this benefit is offset by enhanced gate-to-source/drain capacitance (Cgs) in FinFETs. Here, we measure FinFET Cgs capacitance at 22 nm-like dimensions and determine that, with optimization, the FinFET capacitance penalty can...
This paper presents a discrete time noncolocated control of flexible mechanical systems. The time delay method in continuous time control is extended to discrete time control. A stability criterion that relates the closed-loop stability to the sampling frequency, time delay, and sensor and actuator locations, is derived. Based on the criterion, particular noncolocated controllers are designed for...
Recent research studies noncolocated control of flexible mechanical systems using time delay. The developments are lmited to undamped flexible systems; damped flexible systems have not been considered. This paper investigates noncolocated vibration control of a viscously damped string using time delay. The control system is formulated in the Laplace transform domain. Based on the understanding of...
A new method is presented for vibration control of distributed gyroscopic systems. The control is formulated in the Laplace transform domain. The transfer function a closed-loop system, consisting of the plant, a feedback control law and the dynamics of the sensing and actuation devices, is derived. Stability analyses of the closed-loop system use both the root locus method and the generalized Nyquist...
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