نتایج جستجو برای: performance profile
تعداد نتایج: 1255553 فیلتر نتایج به سال:
Background and aimsThe paper presents the results of an investigation on the acoustic performance of tilted profile parallel barriers with quadratic residue diffuser tops and faces.MethodsA2D boundary element method (BEM) is used to predict the barrier insertion loss. The results of rigid and with absorptive coverage are also calculated for comparisons. Using QRD on the top surface and faces o...
Development of autonomous underwater vehicles (AUVs) which meets the design constraints and provides the best hydrodynamic performance is really an important challenge in the field of hydrodynamics. In this paper a new profile is used for designing the hull of AUVs. The nose and tail profiles of an AUV using presented profile is designed such that it can properly consider the length constraints...
The progression towards smart grids, integrating renewable energy resources, has increased the integration of distributed generators (DGs) into power distribution networks. However, several economic and technical challenges can result from the unsuitable incorporation of DGs in existing distribution networks. Therefore, optimal placement and sizing of DGs are of paramount importance to improve ...
The paper presents the specification, development and initial performance evaluation of the Simplicity Device (SD), which is one of the key components of the SIMPLICITY Architecture. The SD is both a portable personalization device and a hardware Single-Sign-On (SSO) token. It accommodates the Simplicity User Profile (SUP), which contains user context related information and has been designed a...
The Wireless environment requires new type of services and new ways for structuring the needed content. Personalization comes into aid via the creation of personalized portals that directly tones down factors that break up the functionally of the Internet/wireless services when viewed through wireless devices; factors like the “click count”, user response time (the “choice” factor) and the size...
In this paper, we propose a peer-to-peer based mobile environment consisting of stations providing semantic services and users with mobile devices which manage their owner’s semantic profile. In this environment the distributed computing power replaces centralized profile management. The service stations broadcast their services in a description logics based ontology language. When users equipp...
The paper presents a method to compute performance metrics (response time, sojourn time, throughput) on Unified Modeling Language design. The method starts with UML design annotated according to the UML Profile for Schedulability, Performance and Time. The UML design is transformed into a performance model where to compute the referred metrics. Being the performance model a Stochastic Well-form...
In this paper, we propose WAQM, a novel XML-based multiagent system for Quality of Service (QoS) management in wireless networks. WAQM is characterised by the following features: (i) it handles a user profile and exploits it jointly with suitable network resource management techniques to maximise user satisfaction; (ii) it is semi-automatic; (iii) it exploits XML for guaranteeing a light, versa...
On-demand broadcast is an effective data dissemination technique to enhance system scalability and deal with dynamic user profiles. In many situations, there is a need for servers to support timely data dissemination. This paper studies online scheduling algorithms for time-critical on-demand broadcast. We propose a novel scheduling algorithm called SIN-α that incorporates the urgency and the n...
In this paper, we propose a Channel Management Algorithm at the Access Points (APs) of Wireless Local Area Network (WLAN) in order to maximize the efficiency of the network by managing users on different channels such that the overall throughput is maximized. We start with the channel assignment at the APs, which is based on minimizing the total interference between APs. Initially we assign the...
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