hardware architecture of real time operating system

... 1)-predicted idle time based on previous idle time RLTD hard ware SR PM SQ SP Figure 1: Structure of DPM with RLTD hardware block. sion module makes use of the cost function for system- level policies ... factor. Algorithm 2 4. SYSTEM MODEL Agent The aim of the proposed system is to select and adopt the best system- level power management policy. The agent is the learner. The agent in our system is responsible ... an equivalent hardware block by modeling the algorithm using a VHDL model. The hardware architecture consisting of various blocks is as shown in Figure 2. It receives clock as one of the inputs and...

Ngày tải lên: 22/06/2014, 19:20

... An Architecture for Dynamic Instrumentation of En- terprise Distributed Real- time and Embedded Systems. International Journal of Computer Systems Science and Engineering, Special Issue: Real- time ... ____________________________________ Approved by: Head of the Graduate Program Date Darshan Gajanan Puranik Real- time Monitoring of Distributed Real- time Embedded Systems using Web Master of Science Dr. James H. Hill Dr. ... for Distributed Real- time and Embed- ded Systems. IEEE Distributed Systems Online, 3(2), February 2002. [19] Object Management Group. Data Distribution Service for Real- time Systems Specification,...

Ngày tải lên: 24/08/2014, 12:08

... implemented on a range of architectures. Today, the concept of an extensible operating system is once again gaining acceptance this time as the solution to the unconstrained growth of UNIX. During the ... last 20 years operating systems and their environments have undergone dramatic expansion in size, scope and complexity. The Alto operating system [22], a workstation operating system of the early ... Proceedings of the 11th Operating Systems Principles, November, 1987 Abstract Mach is a multiprocessor operating system being implemented at Carnegie-Mellon University. An important component of the...

Ngày tải lên: 12/09/2012, 15:05

Ngày tải lên: 01/01/2014, 18:47

... combines a vision system with an intelligent multimedia generation system to provide commen- tary on 'short sections of video recordings of real soccer games'. The system is built ... produce a real time narration. 2.2 What, How and When-to-Say The previous section pointed out that contents should be uttered at the right time; that is, real time discourse systems should ... have described how MIKE, a live commentary generation system for the game of soccer, deals with the issues of real time content selection and realiza- tion. MIKE uses heterogeneous modules to...

Ngày tải lên: 20/02/2014, 18:20

... instance of task τ i ; r i,j denotes the release time of the jth instance of task τ i ; G.C. Buttazzo, , Real- Time Systems Series 24, DOI 10.1007/978- - -0 - _ , Hard Real- Time Computing Systems: ... the result of 20 years of research and teaching activity in the field of real- time systems. The majority of the material presented in this book is based on class notes for an operating systems course ... global completion time of t c =15units of time. COMPUTATION TIMES REDUCED One could think that the global completion time of the task set J could be improved by reducing tasks’ computationtimes of each...

Ngày tải lên: 01/04/2014, 17:20

... few more systems you need, each requiring a superhuman effort to build them all, but certainly within reach of a team of people per system. The rest of the book focuses on the management of data ... details that arose in the development of the real- time 3D game engine NetImmerse. The expression “game engine” was used because, at the time of the development of NetImmerse, that was what such large ... a logarithmic -time binary search to determine existence of an element. The ordering also supports logarithmic -time insertion and deletion. Unfortunately, real- time en- gines sometimes have performance...

Ngày tải lên: 04/06/2014, 11:53

... expressed as copies of viral DNA per 100 µL of virus suspension. The reliability of real- time PCR was defined by calculating coefficients of variation of Ct values of replicates of standard curve ... fluorescence was read at 60°C at the end of the cycle. Real- time PCR amplification data were analyzed using the Bio-Rad iCycler iQ™ Multicolor Real- Time PCR Optical System Software Version 3.1. A standard ... http://www.virologyj.com/content/3/1/3 Page 3 of 5 (page number not for citation purposes) A – C: Analysis of HA and quantitative real- time PCR data employed for the determination of JC viral loadFigure 1 A – C: Analysis of HA and...

Ngày tải lên: 19/06/2014, 08:20

... per mL) Real time PCR (DNA copies per mL ) Figure 1: Comparison of real time PCR with the Roche Amplicor Monitor in 10 HBsAg positive samples Table 3: Viral load in relation to age group of carriers ... study aimed at developing a real- time quantitative PCR assay to monitor HBV serum virus load of chronic carriers enrolled in therapeutic trials. Method: Quantitative real- time PCR assay was carried ... quantification of virus load as a measure of replication of HBV in patients with chronic liver disease. Prior to the development of the polymerase chain reaction (PCR) a number of hybridisa- tion...

Ngày tải lên: 20/06/2014, 01:20

... expressed as copies of viral DNA per 100 µL of virus suspension. The reliability of real- time PCR was defined by calculating coefficients of variation of Ct values of replicates of standard curve ... fluorescence was read at 60°C at the end of the cycle. Real- time PCR amplification data were analyzed using the Bio-Rad iCycler iQ™ Multicolor Real- Time PCR Optical System Software Version 3.1. A standard ... http://www.virologyj.com/content/3/1/3 Page 3 of 5 (page number not for citation purposes) A – C: Analysis of HA and quantitative real- time PCR data employed for the determination of JC viral loadFigure 1 A – C: Analysis of HA and...

Ngày tải lên: 20/06/2014, 04:20

... linear elastodynamic systems,” SIAM Journal on Control and Optimization, vol. 37, no. 2, pp. 521–542, 1999. 10 E. K. Boukas, “State feedback stabilization of nonlinear discrete -time systems with time- varying time delay,” ... discrete -time systems,” IEEE Transactions on Automatic Control, vol. 41, no. 6, pp. 903–907, 1996. 12 E. N. Chukwu, Stability and Time- Optimal Control of Hereditary Systems, vol. 188 of Mathematics ... think of the autonomous system x  k  1   A  m  x  k   A 1  m  x  k − r   B  m  u  k  1.6 as a particular case of the system 1.1, with its time dependence “frozen” at time...

Ngày tải lên: 21/06/2014, 20:20

... task would take 1.6timesrealtime,or 160% longer than real time, to process at 1.7 GHz. Thus, a multi-GHz processor cannot handle a 1000-word task in real time, and custom hardware must be considered ... hundreds of thousands of Gaussian probabilities re- sulting in execution times of up to ten times the real- time requirement [3]. While these systems are able to provide a great deal of assistance in ... vocabularies in real time. Through the creation of three dedicated pipelines, one for each of the major operations in the system, we were able to maximize the throughput of the system while simultaneously...

Ngày tải lên: 22/06/2014, 22:20

... transmitted power of the antenna, (ii) malfunction of circuit components, (iii) fluctuations of the operating voltage, (iv) the current state of the switching circuits, (v) data failure in the system. Figure ... well as in the left side of Figure 3, the capacity of the dual-polarized antennas is independent of the overall aperture of the array. Increasing the number of antennas of both the base and the ... Block diagram of the transceiver The block diagram of Figure 11 gives an o verview of the analog signal processing of a transceiver. Each transceiver of our demonstrator consists of filters, amplifiers,...

Ngày tải lên: 22/06/2014, 23:20

... (strict cascade of the operators). The evaluation of the routing in the general case is dif- ficult to realize. The execution time after implementation of a regular graph does not depend on the type of operator. ... satisfies the real- time constraint. The method is based, among other steps, on an estimation of the number of possible partitions by use of a characterized (speed and area) library of operators ... are functions of the size (number of bits) of the data to process. If we know the size of the initial data to process, it is easy to deduce the size at each node by a “software execution” of the graph...

Ngày tải lên: 23/06/2014, 01:20

... spatial ramified architecture, in other words, the connecting links between the different parts of the root system. Modeling root architecture The basis of root architecture modeling ... in terms of growing time for each order (number of axis, time of emergence, elongation rate, branching characteristics, such as interbranch dis- tance and length of the apical ... non-branched structure formed through the activity of a single apical meristem. The growth and architecture of growing root systems of young tree seed- lings are studied by direct...

Ngày tải lên: 09/08/2014, 02:21

Ngày tải lên: 09/08/2014, 07:20

Ngày tải lên: 09/08/2014, 07:20

Ngày tải lên: 09/08/2014, 07:20

Ngày tải lên: 09/08/2014, 07:20