security and real time applications

... What Is Real- time? Real- time is harder to explain The basic idea behind real- time is that we expect the computer to respond to its environment in time Many people assume that real- time means real ... been written about Linux in embedded or real- time environments Linux Installation and Getting Started, Matt Welsh, et al ix Linux for Embedded and Real- time Applications I decided to climb the Linux ... simple file xi Linux for Embedded and Real- time Applications operations like move, copy, delete, rename, etc, drag -and- drop beats the miserably obscure Unix commands hands down I also refuse to touch...

Ngày tải lên: 08/03/2016, 09:24

... 11 Coding and Standardization by A Smolic and T Sikora outlines the basic coding strategies frequently used for audio, image and video storage and transmission International coding standards such ... the internet via a camera and where remote users could control a robotic arm to plant and water seeds, and subsequently watch their plants grow and flourish in real- time 1.6 TELECOMMUNICATIONS ... audio, and computing environments Communications of the ACM 36, 2947 Brooks F 1999 Whats real about virtual reality IEEE Computer Graphics and Applications November/December, 1627 Burdea G and Coiffett...

Ngày tải lên: 12/05/2013, 10:21

... implement real systems from the fundamental ideas, whether it be for games or other applications 3D Game Engine Architecture: Engineering Real- Time Applications with Wild Magic David H Eberly Real- Time ... guide and reference manual and sometimes about the design and architecture of the engine Embarassingly enough, I had to tell the users that no such document existed and that I did not have the time ... 0x858A #define GL_OPERAND0_RGB 0x8590 #define GL_OPERAND1_RGB 0x8591 #define GL_OPERAND2_RGB 0x8592 #define GL_OPERAND0_ALPHA 0x8598 #define GL_OPERAND1_ALPHA 0x8599 #define GL_OPERAND2_ALPHA 0x859A...

Ngày tải lên: 04/06/2014, 11:53

... failure management and recovery, and so on Security Embedded systems are getting more and more complex, dynamic, and open, while interacting with a progressively more demanding and heterogeneous ... results of research work and development in the field of real- time operating systems for embedded applications with special emphasis on open source developments From the real- time operating system ... instrumentation, and so on To offer services for these applications, a considerable effort has been made in research and development on innovative realtime operating systems architectures and services...

Ngày tải lên: 21/06/2014, 22:20

... Bekooij, and J van Meerbergen, “Multiprocessor resource allocation for hard -real- time streaming with a dynamic job-mix,” in Proceedings of IEEE Real- Time and Embedded Technology and Applications ... represent in a real system In this section, we describe the relation between the data flow model and the system and show how we can include design -time scheduling decisions and the effects of run -time scheduling ... may be interested in modeling: compile -time and run -time scheduling Compile -time scheduling (CTS) encompasses scheduling decisions that are fixed at compile time, such as static order scheduling...

Ngày tải lên: 22/06/2014, 19:20

... timing constraints a hard real- time application and a system containing mostly hard real- time applications a hard real- time system For many traditional hard real- time applications (e.g., digital ... chap1 page 22 Typical Real- Time Applications Multimedia Applications Finally, let us look at one of the most frequently encountered real- time applications: multimedia A multimedia application may ... resources allocated to but not used by hard real- time jobs and make the reclaimed time and resources available to soft real- time jobs and nonreal -time jobs In this way, the system will not be...

Ngày tải lên: 28/06/2014, 10:20

... oversized and exact-sized cartilage plugs in osteochondral grafting using osmotic loading and real- time ultrasound The main findings of the study are that osmotic loading and real- time ultrasound ... loading and real- time ultrasound and to demonstrate the accuracy of ultrasound in identifying the cartilage damage after osteochondral graft procedures To this end, we evaluated oversized and exact-sized ... and real- time ultrasound Under osmotic loading, the changes in the amplitude and echo shifts can support the evaluation of cartilage damage in osteochondral grafts Moreover, osmotic loading and...

Ngày tải lên: 09/08/2014, 14:22

... transplantation by real- time PCR of Page of which two were positive by pp65 antigenemia assay and 12 were negative by both real- time PCR and pp65 antigenemia assay One donor was positive only by realtime PCR ... antigenemia and real - time PCR The highest copy number detected by real - time PCR was 29, 768 copies/ml and lowest was copies/ml The highest positive pp65 cell count recorded among them was 78 cells and ... (chi-square test p = 0.037%) Correlation between pp65 and real time PCR results Among the 76 kidney donors 58 (73.68%) were positive for real time PCR and of the 56, 39 (51.0%) were positive for pp65...

Ngày tải lên: 12/08/2014, 02:20

... (miR159a and miR159b) have been sequenced more than 5,000 times in mature pollen Since the expression of these two miRNAs was not detected by either real- time PCR or regular RT-PCR (Table and Figure ... μl of each primers (900 nM), μl Taqman probe (250 nM), and 1.5 μl cDNA sample All real- time PCR reactions were performed in a StepOne real- time PCR machine (Applied Biosystems, Foster City, CA) ... Arabidopsis mature pollen using miRNA array and real- time PCR techniques Our results indicated that ~60% of known Arabidopsis miRNAs are expressed in mature pollen, and most of them are present at lower...

Ngày tải lên: 12/08/2014, 03:20

... assays, RNA extraction and realtime PCR analysis NJ drafted and wrote the manuscript MG developed the protocol for the binding assay, radiolabeled and purified the clinical isolate and performed the ... Coxsackie B viruses and adenoviruses and Science 1997, 275:1320-1323 Tomko RP, Xu R, Philipson L: HCAR and MCAR: the human and mouse cellular receptors for subgroup C adenoviruses and group B coxsackieviruses ... single-tube real- time reverse transcription-PCR assay J Clin Microbiol 2001, 39:4093-4096 Mohamed N, Elfaitouri A, Fohlman J, Friman G, Blomberg J: A sensitive and quantitative single-tube real- time...

Ngày tải lên: 12/08/2014, 04:21

... analyzed, and utilized to model specific medical procedures Figure 1.5 shows examples of a volume-rendered and a surface-rendered torso of a patient Producing realistic data models and providing real- time ... Kenneth Barner and Dr Karl Steiner; my committee members, Dr Charles Boncelet, and Dr Chandra Kambhamettu; Dr Javier Garcia-Frias and Dr Gonzalo R Arce for invaluable discussions; and Dr Denny ... the proposed model can simulate elastic deformations of soft 10 organs and tissues with both high visual realism and real- time performance utilizing tetrahedral meshes of varied resolutions In...

Ngày tải lên: 13/11/2014, 16:25

Ngày tải lên: 14/11/2014, 06:51

Ngày tải lên: 14/11/2014, 12:51

... monitoring requires in-line sensors and real- time algorithms to facilitate real- time analysis of sensor signals [14] Therefore, in order to implement real- time CD monitoring and control effectively, we ... measured and reference spectrums is proposed for real- time monitoring and control Result shows CD non-uniformity can be significantly reduced to less than 10nm With this system, real- time monitoring and ... equipment and each step has the possibility to induce some kind of error or defect and therefore stringent process monitoring and control along the line is required for real- time fault detection and...

Ngày tải lên: 09/09/2015, 18:50

... of a complex real- time system is an important and nontrivial task There are two time semantics in the definition of real- time systems Discrete -time semantics [11] requires that all time readings ... of concurrent and real- time systems In particular, we have tried to address four issues related to model checking: (i) proposing a formal language to model concurrent and real- time systems, (ii) ... real- time systems is based on the notation Timed Automata [10, 149] Timed Automata are powerful in designing real- time models with explicit clock variables Real- time constraints are captured by explicitly...

Ngày tải lên: 14/09/2015, 08:38

... Maximizing visual effect is a major problem in real- time animation One work was proposed on real- time hair animation based on 2D representation and texture mapping [Koh00, Koh01] Due to its 2D ... these techniques are not suitable for real- time hair animation Recently, Koh and Huang [Koh00, Koh01] proposed a strip based approach that animates in real- time But because of the 2D strip used, ... strips and between scalp and hair strips to provide a realistic animation A model of collision detection, response and avoidance is also specified Collision of hair strips against scalp and collision...

Ngày tải lên: 28/09/2015, 13:21

... look first at real- time issues, then some specific embedded issues, and finally, at trends and issues that commonly apply to both realtime and embedded systems Real- Time Systems A real- time system ... environment Real- Time Embedded System (state) Figure 2.1 A real- time system reacts to inputs from the environment and produces outputs that affect the environment Hard Real- Time and Soft Real- Time Systems ... not real time and it grew in an unbounded way, and the system (the evacuation system) was considered a failure Real- time systems that cannot perform in real time are failures If the queue is really...

Ngày tải lên: 22/09/2016, 10:03

... the DTFT of periodic and finite-length sequences Example 7.1: If the signals fx…n†g are real valued and N is an even number, we can show that X …0† and X …N=2† are real values and can be computed ... …7:1:17† and Im‰X …k†Š ˆ ÀIm‰X …N À k†Š, Thus the DFT of a real sequence produces symmetric real frequency components and anti-symmetric imaginary frequency components about X(M) The real part ... algorithms: decimation-in -time and decimation-infrequency In the decimation-in -time algorithm, the input time sequence is successively divided up into smaller sequences, and the DFTs of these subsequences...

Ngày tải lên: 28/10/2013, 05:15

... …3:2:7† For example, a real- valued sinewave of amplitude A defined in (3.1.6) has the power Px ˆ 0:5A2 In most real- time applications, the power estimate of real- valued signals at time n can be expressed ... distributed random numbers with mean and variance 1: xn ˆ 2*sqrt(3)*(rand À 0:5); For two random variables x and y, we have E‰x ‡ yŠ ˆ E‰xŠ ‡ E‰yŠ, …3:3:15† i.e., the mean value of the sum of random ... smaller than 1) and occasional overflow can be avoided by using guard bits and saturation arithmetic 3.7 Implementation Procedure for Real- Time Applications The digital filters and algorithms...

Ngày tải lên: 19/10/2013, 23:15

... non-causal and hence not physically realizable Instead we must compromise and accept a more gradual cutoff between passband and stopband, as well as specify a transition band between the passband and ... illustrated in Figure 5.1(a) The regions ! !c and ! > !c are referred to as the passband and stopband, respectively The frequency that separates the passband and stopband is called the cut-off frequency ... passband, the magnitude response has a peak deviation dp and in the stopband, it has a maximum deviation ds The frequencies !p and !s are the passband edge (cut-off) frequency and the stopband...

Ngày tải lên: 23/10/2013, 22:15