Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
In recent years, artifact-centric business process modeling is gaining momentum with its improved flexibility and extensibility. In order to support the rapid translation of the traditional activity-centric processes into this new type of processes, this paper proposes a novel approach to automatically transforming an activity-centric process model into a group of lifecycles of artifacts and their...
The business process model is commonly created as a fundamental high level analysis model. The BPMN is one of the well known and widely used to represent the business process model. Recently, the BPMN workflow patterns are proposed as standardized business process model building blocks. The BPMN workflow patterns also provide the business analysts the common patterns of solutions to various workflow...
Control and data dependencies represent prominent information for modeling, managing, testing and optimizing service based business processes (SBPs). BPMN 2.0, as a twofold-purpose language, can be used to both mode land execute these SBPs. However, there is neither tailored support nor implemented tool for dependency ananlysis of such processes. Therefore, in this paper, we designed and implemented...
The conversion from 104 protocol to 61850 protocol need to receive the data frames and analyze them according to the frame structure, extract the useful information, establish relevant 61850 model, and mapping the related information to the relevant data attributes of 61850 on correspondence.
This paper introduces a radically different approach to parallel simulation for gate level design, aimed at completely eliminating the communication and synchronization overhead between simulators. It is based on a new concept of temporal parallel simulation: in contrast to traditional, spatially-distributed simulation, which partitions the design into multiple modules to be simulated concurrently,...
In this paper, we propose a simple but effective method to reduce the power in the design of the speed negotiation algorithm(SNA). Based on thoroughly analyzing the algorithm and the results of simulation, we identify the large timers, the most commonly used in the SNA, as the most power consuming parts. This paper further develops a partition algorithm to tackle the power issue of the large timers...
Various methodologies to model and analyze timed and hybrid systems using SAL are reported. We assume that the system is specified as a network of timed/hybrid automata with synchronized transitions and urgency. We show how to translate the system into a SAL model with the time domain being either discrete or dense, and the clocks being either saturated or unsaturated. Depending on these choices,...
For several decades, the output from semiconductor manufacturers has been high volume products with process optimisation being continued throughout the lifetime of the product to ensure a satisfactory yield. However, product lifetimes are continually shrinking to keep pace with market demands. Furthermore there is an increase in dasiafoundrypsila business where product volumes are low; consequently...
The rate compatible punctured convolutional code (RCPC code) is an important module in Multi-band Orthogonal Frequency Division Multiplexing Ultra Wide Band (MB-OFDM-UWB) indoor positioning system introduced in this paper as a kind of useful channel coding to offer more protection against all kinds of channel noise under indoor channel environments. In this paper, RCPC code for MB-OFDM-UWB indoor...
In this paper, we propose a robust STBC transmission scheme to combat the timing synchronization errors over frequency-selective multiple-access channels. First, the equivalent channel model in the presence of timing synchronization errors is derived and we find that the synchronization errors result in an equivalent channel model with larger number of correlated channel taps. Based on this correlated...
We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
Adaptive ARQ is applied to a wireless network, altering retransmission policy according to content importance. By a video deadline-aware buffer discard policy, repeated transmission of expired packets and buffer overflow are mitigated, helping to maintain video quality. Multiple deadlines are applied according to picture type. The combined policy is demonstrated for a bluetooth piconet achieving fast...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
This paper describes a method to identify and assess power loss mechanisms in power MOSFETs for switched circuits. An accurate behavioural MOSFET model is employed in a circuit simulator to analyse the performance of a trench MOSFET technology. A synchronous buck converter for point of load (PoL) applications underlies the study of MOSFETs' switching behaviour. The methodology aims at the derivation...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.