1,721,000 research outputs found
Situation Awareness and Environmental Factors: The EVO Oil Production
No full textThe paper considers simulation results for a supply network, that deals
with Extra Virgin Olive (EVO) oil production, an activity that is typical of Southern
Italy. The phenomenon is studied by differential equations, that focus on goods on
arcs and queues for the exceeding goods. Different numerical schemes are used for
simulations. A strategy of Situation Awareness allows defining a possible choice
of the input flow to the supply network. The achieved results indicate that Situa-
tion Awareness permits to find good compromises for the modulation of production
queues and the optimization of the overall system features
Build Innovation through Organizational Learning Capability
Full text linkThis research paper aims to explain the relationship between Organizational Learning (OL), and Organization Innovation (OI). The Author has used analysis of the related literatures to have deep understanding of the subject. This research offers personal mastery, systems thinking and team learning as organizational Learning Capability that will help the entity to have an innovation
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Token-based Fast Authentication for Wireless Network
Full text linkWireless Networks based on WIFI or WIMAX become popular and are used in many places as compliment network to wired LAN to support mobility. The support of mobility of clients, the continuous access anywhere and anytime make WLAN preferable network for many applications. However, there are some issues associated with the usage of WLAN that put some restriction on adapting this technology everywhere. These issues are related to using the best routing algorithm to achieve good performance of throughput and delay, and to securing the open access to avoid attacks at the physical and MAC layer. IEEE 802.1x, suggested a solution to address the security issue at the MAC layer and but there are varieties of implementations address this solution and they differ in performance. IEEE 802.1af tried to address other security issue remained at the MAC layer but it is still at early stage and need verification for easy deployment. In this paper a new technique for securing wireless network using fast token-based authentication has been invented to address the vulnerability inherited by the wireless network at the MAC layer using fast authentication process. This technique is based on an authentication server distributing a security token, public authentication key, and network access key parameter to eligible mobile client MCs during registration. All messages will be encrypted during registration using temporary derived token key, but it will use derived valid token key during authentication. Authenticated MCs will then use derived group temporal key generated from the network access parameter key to encrypt all messages exchanged over the wireless network. The token, the authentication key and the access network parameter key will be only distributed during registration. This makes the security parameters known only to authentication server, authenticator and MC. Hence, this technique will protect the wireless network against attack since attackers are unable to know the token and other security keys. Moreover, it will avoid the exchange of public keys during authentication such as the one used in other existing technologies, and consequently speedup the authentication phase which is very critical to wireless technologies
Analysis of distributed resource management in wireless LANs that support fault tolerance
Full text linkDeploying wireless LANs (WLAN) at large scale is mainly affected by reliability, availability, and performance. These parameters will be a concern for most of managers who wanted to deploy WLANs. In order to address these concerns, new radio resource management techniques with fault tolerance can be used in a new generation of wireless LAN equipment. These techniques would include distributed dynamic channel assignment, sharing load among Access Points (AP), and supporting fault tolerance. Changing from the relatively static radio resource management techniques generally in use today to dynamic methods has been addressed in previous research article using centralized management, but it suffer from network availability problem. In [10] a new distributed management for dynamic channel assignment has been suggested. In this paper the idea has been extended to support fault tolerance, which improves the network availability and reliability compared to centralized management techniques. In addition, it will help in increasing network capacities and improve its performance especially in large-scale WLANs. The new system has been analyzed and according to binomial distribution results showed improvement of network performance compared to static load distribution
Mobile station location based on hybrid of signal strength and time of arrival
Full text link© 2005 IEEE. Positioning of users or mobile station (MS) in cellular systems becomes an interesting topic since the related number of applications for the location information is growing rapidly. The decision to make the locating of mobile phones under the US Federal Communications Commission (FCC) mandatory is one of the driving forces to research and provide solutions to it. Deploying such applications would require a proper method for positioning the MS that are simple and accurate especially in urban area. There are many research papers addressing this issue based on timing method that calculate the timing delay for signal sent from MS to base station (BS) or vise versa, and other method based on signal strength. In this paper, we present a new calculation method to locate the mobile phone in urban district. This technique is based on hybrid method that uses signal strength to estimate the timing delay and comparing it with the measured time of arrival of the signal. The minimum timing value of the two results would be accepted and averaged for n samples. This will improve the accuracy and reduce the effect of multi-path signaling that both timing signaling and signal strength methods suffer from. In addition, a new calculation method has been presented to find the location of MS based on the BSs coordinates
Organizational Knowledge Systems Design & Implementation
Full text linkThis research paper aims to explain relationships of organization learning (OL), knowledge management (KM), talent management (TM) practices and organizational performance (OP) in order to have excellent understanding of the subject by using in-depth analysis of the extant literature. This research offers mechanisms for Organizational Knowledge Systems (OKS) that will help the entity to apply OKS. The research paper has created a complete mechanism of the OKS then tests the proposed model.
Keywords: Organization Learning, Knowledge Management, Talent Management and Organization Knowledge Systems
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