Technology Options to Support the Implementation of Knowledge Management

Company is more aware that knowledge management is one of the important factors because it gives competitive advantages for them. Knowledge is intellectual asset that is owned by individual or company. Knowledge becomes very useful if it is documented or stored, organized, shared to others and can be understood and applied. Knowledge Management System (KMS) is made to manage knowledge. KMS does identifying process, capturing, organizing and disseminating knowledge. Technology is one of three model of KM that supports the implementation of KM. This time there are various options of technology that support the KM implementation for companies. In this research, there are various options or types of technology that can be used to support the implementation of knowledge management

Contribution to the Optimization of the Radiation Performance of Patch Array Antenna for WiMAX Applications

The aim of this paper is to increase the operating distance of the WiMAX implementation by increasing the gain and the directivity using microstrip array antenna. We present the design of simple 2X2 microstrip array antenna operating at 5.38 GHz for WiMAX applications. The design is based on a single layer FR4 substrate, having a loss tangent o

Effect of in vitro gastrointestinal digestion on antioxidant potential of three prickly pear variety extracts

The aim of this study was to evaluate the effect of in vitro gastrointestinal digestion on the phenolic amounts and their antioxidant potential of three prickly pear variety extracts. The total phenolic compounds (phenolic, flavonoid, and proanthocyanidin) contents were assessed as well as their antioxidant activities (total antioxidant capacity, ferric reducing power, and DPPH free radical scavenging activity) were evaluated before and after digestion. Our results showed that before digestion, the yellow variety possesses high phenolic and proanthocyanidin contents with values of 3176±18 mg GAE/100 g and 90.3±9.8 mg CE/100 g, respectively. However, the red variety has high flavonoids content with a value of 1638±6 mg QE/100 g. Antioxidant activities showed similar trend that phenolic compounds. During the digestion, the antioxidant potential of digested extracts decreased significantly (P<0.001) compared to undigested ones. Hence, this potential increased significantly (P<0.01) from the oral to the intestinal phases. The statistical analysis revealed a moderate correlation between phenolic compounds and antioxidant activity. Hence, IVGID affects the antioxidant potential of extracts, but pH and enzymatic changes do not affect their gut bioaccessibility

Applied fault detection and diagnosis for industrial gas turbine systems

The paper presents readily implementable approaches for fault detection and diagnosis (FDD) based on measurements from multiple sensor groups, for industrial systems. Specifically, the use of hierarchical clustering (HC) and self-organizing map neural networks (SOMNNs) are shown to provide robust and user-friendly tools for application to industrial gas turbine (IGT) systems. HC fingerprints are found for normal operation, and FDD is achieved by monitoring cluster changes occurring in the resulting dendrograms. Similarly, fingerprints of operational behaviour are also obtained using SOMNN based classification maps (CMs) that are initially determined during normal operation, and FDD is performed by detecting changes in their CMs. The proposed methods are shown to be capable of FDD from a large group of sensors that measure a variety of physical quantities. A key feature of the paper is the development of techniques to accommodate transient system operation, which can often lead to false-alarms being triggered when using traditional techniques if the monitoring algorithms are not first desensitized. Case studies showing the efficacy of the techniques for detecting sensor faults, bearing tilt pad wear and early stage pre-chamber burnout, are included. The presented techniques are now being applied operationally and monitoring IGTs in various regions of the world

Genetic homogenization of indigenous sheep breeds in Northwest Africa

Northwest-African sheep represent an ideal case-study for assessing the potential impact of genetic homogenization as a threat to the future of traditional breeds that are adapted to local conditions. We studied ten Algerian and Moroccan breeds of sheep, including three transboundary breeds, distributed over a large part of the Maghreb region, which represents a geographically and historically coherent unit. Our analysis of the dataset that involved carrying out Genome-wide SNP genotyping, revealed a high level of homogenization (ADMIXTURE, NetView, fineSTRUCTURE and IBD segments analyses), in such a way that some breeds from different origins appeared genetically undistinguished: by grouping the eight most admixed populations, we obtained a mean global FST value of 0.0024. The sPCA analysis revealed that the major part of Morocco and the Northern part of Algeria were affected by the phenomenon, including most of the breeds considered. Unsupervised cross-breeding with the popular Ouled-Djellal breed was identified as a proximate cause of this homogenization. The issue of transboundary breeds was investigated, and the Hamra breed in particular was examined via ROH fragments analysis. Genetic diversity was considered in the light of historical archives and anthropological works. All of these elements taken together suggest that homogenization as a factor affecting the Maghrebin sheep stock, has been particularly significant over the last few decades, although this process probably started much earlier. In particular, we have identified the policies set by the French administration during the colonial period of the region’s history as a causal factor that probably contributed significantly to this process. The genetic homogenization that we have observed calls into question the integrity of the farm animal genomic resources represented by these local breeds, whose conservation is of critical importance to the future of the livestock sector