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We study the dynamic energy optimization problem in data centers. We formulate and solve the following offline problem: given a set of jobs to process, where the jobs are characterized by arrival instances, required processing time, and completion deadlines, and given the energy requirements of switching servers ON or OFF, in which time-slot which server has to be assigned to which job, and in which...
Simulation is experimentation with a model. The behavior of the model imitates some salient aspect of the behavior of the system under study and the user experiments with the model to infer this behavior. This general framework has proven a powerful adjunct to learning, problem solving, and design. In this tutorial, we focus principally on discrete-event simulation—its underlying concepts, structure,...
In a previous paper [1] we introduced an optimized version of the K-Means Algorithm. Unlike the standard version of the K-Means algorithm that iteratively traverses the entire data set in order to decide to which cluster the data items belong, the proposed optimization relies on the observation that after performing only a few iterations the centroids get very close to their final position causing...
This work presents improved implementations of memristor-based ripple carry adders using three different approaches: the IMPLY operation, hybrid-CMOS gates, and threshold gates. The designs are optimized by performing parallel operations, leveraging computational redundancies, and recognizing Boolean simplifications. The proposed IMPLY N-bit ripple carry adder decreases the area by 2N-1 components...
Intelligent Network Application Protocol allows telecom operators to differentiate themselves by providing value-added services in addition to the standard telecom services. In some telecom operators, switch-wide usage of INAP service causes interaction for tandem calls which need to be transited towards adjacent switch instead of INAP query. In this work, we share our experience and design solution...
Network-on-chip system plays an important role to improve the performance of chip multiprocessor systems. As the complexity of the network increases, congestion problem has become the major performance bottleneck and seriously influence the performance of NoCs. Prior works have focused on designing effective routing algorithm based on collecting contention and congestion information to load balance...
LPG cylinders have become an integral part of every home. Our kitchens are occupied with LPG cylinders which help us make delicious food. But it can be dangerous and life threatening. Therefore, it requires constant vigilance to reduce the danger. The aim of this paper is to design a safety oriented system which will alert the user about any threat in the kitchen through mobile and also capable of...
The traditional auto-reclosing method in relaying cannot meet the requirements of the distribution network with small hydropower in case of faults. In order to provide reliable guarantee for safe operation of transmission line, on the basis of the improvement measures by the reclosing device in the practical engineering, a reclosing device adapted to synchronization line of small hydropower station...
A continuous real-time data acquisition and communication equipment based on Advanced RISC Machine and Field Programmable Gate Array is designed and developed, on the basis of which an on-line monitoring and fault diagnosis system for high voltage circuit breaker is realized. Mechanical, electrical and environmental parameters of the switching process can be gathered by this system. The function modules...
Keyboard, mouse as fundamental input devices of computer systems, have changed traditional input behavior of human beings & writing experiences. However, handwriting, painting are still indispensable communication styles. In recent years, touch screen has become a prevailing human computer interface on many kinds of digital devices, which makes it possible for people using a pen to take notes...
While autonomy developers have been able to take advantage of external control interfaces on intelligent vehicles for years, they have typically had to choose between control architectures and interfaces that only allowed them to use the existing behaviors of the vehicle (task-level control) or those that allowed them to set desired control values (setpoint control) but then required them to re-invent...
There is a pressing need for high-radix routers in modern HPC (High Performance Computing) interconnects and to build the exascale computers with massive clusters. In this paper, we propose MBL, a high-radix router with a multi-stage bufferless switch Clos network inside. Booksim interconnection network simulator is used to implement our arbitrating designs for the architecture and it runs well under...
The design and operation of an asynchronous two-input mutual exclusion element are described in this paper. A decision-making module suitable for implementing n-way decision-making circuits is also implemented using CMOS DVCS logic.
File retrieval is a frequently adopted primitive operation for most computer users. As the dominant way for file retrieval, file navigation is yet quite inefficient. Lots Efforts have been made to either enhance the navigation interface or provide alternative. However, they all suffer from the challenge of switching users from their preferred interface to a totally unfamiliar new one. In this paper,...
In this paper we present measurements of the magnetic flux density in an office and three different welding environments. The measured values are compared with the thresholds set by the EU Directive 2013/35/EU. For the office environment, a magnetic field survey is presented at different heights with the electrical appliances operating in different modes. For the welding workshop, measurements were...
In this paper, two transit problems which pass through the ε-neighborhood of some given objective states in turn from an arbitrary initial state will be studied for both continuous-time and discrete-time switched linear systems with constant input. At first the quadratic stabilization problem for continuous-time switched linear systems with constant input will be investigated. Next, the same problem...
This paper proposes a self-healing strategy for two neighboring islanded microgrids (MGs) that are connected together through a normally open interconnecting static switch (ISS). Each MG is expected to support the other during power deficiencies, which is facilitated by the developed self-healing agent. This agent operates based on either a centralized approach, when data communication system is available,...
The authors carried out three experiments exploring the influence of language similarity on language selection mechanisms. In Experiment 1, The participants were asked to perform the task of language-switching between their two dissimilar but highly proficient languages (Tibetan-Mandarin) ,in which they had to name the pictures quickly and accurately by using the cued language in the picture-word...
With increasing demand for backup electric power, the design of an efficient battery charger is essential in many industrial applications. However, traditional charging methods do not contribute an effective mechanism to achieve an optimal charging process. Therefore, this paper aims to design a current-controllable self-managing battery charging system, especially for lead-acid batteries. The proposed...
The advantages of avionics switched network in network scale and flexibility greatly improve the communication performance of avionics network, promote the development of IMA/DIMA technology and also increase network scale and complexity. Meanwhile, requirements for the management of the avionics system are also on the rise. In this paper, the characteristics of SNMP protocol and airborne switched...
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