bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of Framer/Deframer for 5Gbps JESD204B Soft IP
Authors: B. Escabal Ingrid , G. Raffiñan Edzel , A. Hora Jefferson 
Published: May 2018

This paper aimed to modify and redesign theJESD204B Full System of Lattice Semiconductor, particularly the TX deframer and RX framer modules used for the 3Gbps JESD204B soft IP to support the recently released 5Gbps JESD204B Soft IP. The modified full system instantiating the new 5Gbps JESD204B Soft IP had to be tested for functionality through RTL and gate simulation and tested for timing through Static Timing Analysis. The transaction layer’s RX framer, TX deframer, and the clock generator modules were identified to be the major blocks of the full system affected by the change in the soft IP. These were redesigned, followed by RTL and gate simulation of the full system. STA was checked through the Lattice Diamond tool. The system passed the simulation tests. Also, STA results showed that timing was still relaxed even if the lane speed was increased, ensuring that timing requirements are achieved by the device. It is recommended that the full system’s other blocks, and the testbench for the JESD204B and other soft IP products be investigated to operate at a higher clock frequency without violating the timing requirements and constraints of the ECP5 device.
Feature Selection using Genetic Algorithm for Clustering high Dimensional Data
Authors: Kouser Kahkashan , Priyam Amrita 
Published: May 2018

One of the open problems of modern data mining is clustering high dimensional data. For this in the paper a new technique called GA-HDClustering is proposed, which works in two steps. First a GA-based feature selection algorithm is designed to determine the optimal feature subset; an optimal feature subset is consisting of important features of the entire data set next, a K-means algorithm is applied using the optimal feature subset to find the clusters. On the other hand, traditional K-means algorithm is applied on the full dimensional feature space. Finally, the result of GA-HDClustering is compared with the traditional clustering algorithm. For comparison different validity matrices such as Sum of squared error (SSE), Within Group average distance (WGAD), Between group distance (BGD), Davies-Bouldin index(DBI), are used .The GA-HDClustering uses genetic algorithm for searching an effective feature subspace in a large feature space. This large feature space is made of all dimensions of the data set. The experiment performed on the standard data set revealed that the GA-HDClustering is superior to traditional clustering algorithm.
Free Vibrations of Thin-Walled Box-Section Bars Allowing for Shear Strains
Authors: Gavrilov Aleksandr , Grebenyuk Grigoriy , Morozov Nikolay , Grehov Andrey 
Published: May 2018

Purpose. The purpose is to study free vibrations of thin-walled bar with combined bisymmetrical section allowing for the effects of shear strains.Methods. We used the main hypothesis of V.Z. Vlasov concerning thin-walled bars. Solving motion equations analytically, we used the method of initial parameters and the known methods for differential equations solution. In the natural experiment we applied Autodesk Inventor system. In the course of the natural experiment on shaker, we used the method of smooth change in the frequency of sinusoidal vibrations.Results. We provide the analytical solutions of the shapes and the natural frequencies of thin-walled bar with combined bisymmetrical section allowing for shears caused by bends and constrained torsion. We compared the results of the calculations conducted in CAE system and the results of the full-scale experiment to determine the frequencies of vibrations of box beam.Conclusions. The results showed that the analytical calculations are in good compliance with the results of numerical and physical experiments and can be used for dynamic calculations of thin-walled structural elements, in particular, for the prevention of the destruction of structures in the event of resonance phenomena.
Sky Lanterns And Aviation Safety : A Study At The Mae Fah Luang Chiangrai Airport
Authors: Charoensook Chartchai 
Published: May 2018

The purpose of this research is to study explore the challenges emerging due to use of sky lantern at the Mae Fah Luang Chiangrai Airport, which has threat to aviation safety. The current pertaining is qualitative research done by in-depth interview of aviation personnel at Chiangrai Airport. The finding of the study can be summarized as follows: 1) Lantern obstructs visibility of flight path posing challenge to both pilot and air traffic controller. 2) Lantern can accidentally slip into aircraft engine and it could jam the engine or could cause engine explosion. 3) Lantern slips into aircraft controlling equipment, this could cause aircraft unable to control its direction. 4) Lantern that floats and sticks with aircraft body, could cause fire to aircraft body. 5) Lantern that falls onto runway or airport drive way, may endanger aircraft while takeoff and landing or it could damage aircraft during taxiing on the runway. However, it is opined by respondent to jointly organize community awareness campaign to educate people and mitigate the associated threat.
Bi-rotor micro hydro power plant for energy supply to isolated consumers
Authors: D. Obozov Alaybek , A. Akparaliyev Ruslan , T. Mederov Taalaybek , G. Krasnov Victor 
Published: May 2018

This paper is dedicated to comparative analysis and description of a micro hydroelectric power plant with bi-rotor hydro generator. Based on the characteristics analysis, this paper describes a renewable energy source for a small watercourse; the feasibility of micro hydroelectric power plants with bi-rotor hydro generator is demonstrated. The features of their operation require in-depth research to substantiate parameters of such installations. This paper presents the analysis of the usage of micro hydroelectric solutions with bi-rotor hydro generator. The lattice theory problem was solved, which made it possible to determine the shape of the profile according to a given law of velocity distribution (pressure) on the contour. The experimental stand was developed, and the experiments were conducted to identify the dependence of the frequency of rotation from the flow and the dependence of the rotational frequencies of hydro turbines from various loads. Based on the results obtained, the optimum values of the rotational speed were identified. Presented results of experimental research are of significance and can be applied practically in design of micro hydroelectric power plants with bi-rotor hydro generator. Keywords: Bi-Rotor Hydro Generator; Differential Equation; Rotational Flows; Function; Hydraulic Models; Kinetic Energy; Renewable Energy Sources; Velocity Measurements. This paper is dedicated to comparative analysis and description of a micro hydroelectric power plant with bi-rotor hydro generator. Based on the characteristics analysis, this paper describes a renewable energy source for a small watercourse; the feasibility of micro hydroelectric power plants with bi-rotor hydro generator is demonstrated. The features of their operation require in-depth research to substantiate parameters of such installations. This paper presents the analysis of the usage of micro hydroelectric solutions with bi-rotor hydro generator. The lattice theory problem was solved, which made it possible to determine the shape of the profile according to a given law of velocity distribution (pressure) on the contour. The experimental stand was developed, and the experiments were conducted to identify the dependence of the frequency of rotation from the flow and the dependence of the rotational frequencies of hydro turbines from various loads. Based on the results obtained, the optimum values of the rotational speed were identified. Presented results of experimental research are of significance and can be applied practically in design of micro hydroelectric power plants with bi-rotor hydro generator.
Electronic learning resources and online education technology: issues of effectiveness evaluation
Authors: R. Moskalenko Maxim , M. Dorozhkin Evgenij , A. Tolstykh Olga , E. Marakulina Uliana , V. Mustakimova Maria 
Published: May 2018

The relevance of the problem under investigation is due to the widespread use of electronic learning resources and online education technologies in Russian universities and the need to improve their quality for increasing the students learning efficiency. The article aims to study the possibilities for improving the efficiency of e-learning resources and online education technologies and their application specific in teaching students. The leading method of this issue research is the analysis of electronic learning resources and online education technologies use at Russian HEIs. Research results: analysis of electronic learning resources and online education technologies use at Russian HEIs was conducted; approaches for evaluating the efficiency of electronic resources and online education technologies use were developed; recommendations on improving the e-learning resources and online education technologies use were formulated, as well as for developing methodological and pedagogical support for their use in the educational process. The article materials can be useful for: higher-education teaching personnel who one way or another uses e-learning resources and online education technologies in teaching activities; HEIs' leaders; materials developers and employees of universities that are involved in the practical introduction of e-learning resources and online education technologies into the educational process; students and post-graduate students. Learning Efficiency; E-
Entity-based Parameterization for Distinguishing Distributed Denial of Service from Flash Events
Authors: A Mohamed M , Jamil N , F Abidin A , M Din M , N S W Nik W , R Mamat A 
Published: May 2018

In a perfect condition, there are only normal network traffic and sometimes flash event traffics due to some eye-catching or heart-breaking events. Nevertheless, both events carry legitimate requests and contents to the server. Flash event traffic can be massive and damaging to the availability of the server. However, it can easily be remedied by hardware solutions such as adding extra processing power and memory devices and software solution such as load balancing. In contrast, a collection of illegal traffic requests produced during distributed denial of service (DDoS) attack tries to cause damage to the server and thus is considered as dangerous where prevention, detection and reaction are imminent in case of occurrence. In this paper, the detection of attacks by distinguishing it from legal traffic is of our main concern. Initially, we categorize the parameters involved in the attacks in relation to their entities. Further, we examine different concepts and techniques from information theory and image processing domain that takes the aforementioned parameters as input and in turn decides whether an attack has occurred. In addition to that, we also pointed out the advantages for each technique, as well as any possible weakness for possible future works.
Single Term Concepts from English Translated Qur’an Using Statistical Methods
Authors: Ismail Rohana , Abd. Rahman Nurazzah , Abu Bakar Zainab 
Published: May 2018

Ontology is essential for the success of knowledge based systems because it has the opportunity to share vocabulary, integrate knowledge easily and discover new instances or relations. However, the development of ontology via manual is time consuming and tedious task. Thus, ontology learning comes to play it roles. The ontology learning tries to extract ontological elements to support the ontology development. Concept extraction is one of the important tasks in ontology learning. The Hajj domain of Quranic study, concepts have not fully discovered. Hence, this paper tries to discover concepts by extracting the single terms from Qur’an translated version. It provides result on extracting the single terms as concepts by using statistical methods. Apart from that, it has been experimented for English Translated Quran by Hilali Khan. Result shows that the performance of using tf method as a statistical method is significant with the f-measure value is 0.509. Based on the tf, the comparisons have been made for other statistical methods such as tfidf, Avetf and Ridf.
Graph-based Representation for Sentence Similarity Measure : A Comparative Analysis
Authors: Sakira Kamaruddin Siti , Yusof Yuhanis , Azzah Abu Bakar Nur , Ahmed Tayie Mohamed , Abdulsattar A.Jabbar Alkubaisi Ghaith 
Published: May 2018

Textual data are a rich source of knowledge; hence, sentence comparison has become one of the important tasks in text mining related works. Most previous work in text comparison are performed at document level, research suggest that comparing sentence level text is a non-trivial problem. One of the reason is two sentences can convey the same meaning with totally dissimilar words. This paper presents the results of a comparative analysis on three representation schemes i.e. term frequency inverse document frequency, Latent Semantic Analysis and Graph based representation using three similarity measures i.e. Cosine, Dice coefficient and Jaccard similarity to compare the similarity of sentences. Results reveal that the graph based representation and the Jaccard similarity measure outperforms the others in terms of precision, recall and F-measures.
Analyzing and Optimizing Pedestrian Flow through a Single Route in a Topological Network
Authors: Khalid Ruzelan , Kamal Mohd. Nawawi Mohd , Azizul Baten Md , Ishak Nurhanis 
Published: May 2018

In emergency cases, people are typically recommended to use the shortest route to minimize their travelling time. This recommendation may however not yield the optimal performance in the long run since the route may be over utilized after a certain point of time and this situation eventually causes heavy blockages. This paper thus measures the pedestrian flow performance through all available single routes in a topological network based on relevant arrival rates. The performance was measured using an M/G/C/C state dependent queuing approach which dynamically models pedestrians’ walking speed in relation to their current density in a route. The analysis was based on an imaginary network consisting of various routes and topologies. For each route, its performance in terms of the throughput, blocking probability, expected number of pedestrians and expected travel time was first evaluated. The performance was then compared to each other and also compared to the flow performance if all available routes were utilized. The results indicated that the shortest route did not necessarily generate the optimal throughput and that the utilization of all available routes to flow pedestrians generated better performance. The optimal performance could be obtained if the arrival rate was controlled at a certain level.
Skills Workers in Mechanical Engineering to Produce Portable Sprocket
Authors: Omar Ali Saifuddin bin Wan Ismail W , Binti Hamzah Noraini , Nazafee bin Mohd Ridhuan Tee Mohd 
Published: May 2018

Sprocket is a wheel with teeth that mesh with a chain. It is being used widely in automotive and machinery to transmit rotary motion between the shafts. In manufacturing the sprockets, some of the workers have the skills to make it and some of them lack the skills. Skills are important in manufacturing engineering. The main focus of this research is to help: i. the workers in manufacturing the sprocket efficiently; and ii. low cost while providing good quality of sprocket. In this research, operations that require machining some of them are simple which can be done easily such as turning. No other devices needed to hold the workpiece in such an operation. The research aims to develop a jig & fixture tool which is called a sprocket. While the research methodology is divided into 2 which are the procedure during the making of the project and the results and discussion obtained. This study is very useful for small and big industries for the sprocket process. It would help the user to make sprockets only using this sprocket maker to guide the drilling machine. It is a low cost and efficient way for manufacturers that is currently in this sprocket manufacturing.
Development of scenario management and requirements tool (SMaRT): towards supporting scenario-based requirements engineering methodology
Authors: Nordin Azlin , Ikhwan Omar Amirul , Usamah Megat Mohamed Amin Megat , Salleh Norsaremah 
Published: May 2018

Scenario-based methodology has been applied in analyzing real world experience into representation in software environment. Nonetheless, capturing, documenting and managing scenarios are extremely labor-intensive. Hence, the generic aims of this project are to investigate, explore and analyze requirements management process towards supporting scenario-based requirements approach. Based on our analysis of the existing RE or Requirements Management (RM) tools, most of the tools had less focus or missing some significant RE features to facilitate scenario-based methodology. We analyzed all the relevant features and developed a prototype i.e. Scenario-based Requirements Tool (SMaRT) to demonstrate how scenario-based approach can be implemented to further supports scenario-based RE methodology and covers most of the RE process i.e. elicitation, analysis and negotiation, documentation, validation, and management. SMaRT improves the RE tool features i.e. project and requirements management, document generation and validation function to further supports scenario-based RE methodology and covers most of the RE process i.e. elicitation, analysis, negotiation, documentation, validation, and management.
Collaborative requirements review
Authors: Nordin Azlin , Zainal Abidin Nadzurah , Hanum Mohd Zaini Sara 
Published: May 2018

Requirements review is a formal review conducted to ensure that system requirements have been completely and clearly identified. In the conventional requirements review technique, reviewers are required to physically attend the review session and give their review feedback during the session. In such a situation, there are potential problems of scheduling the review session based on the availability of the reviewers and issues with having to physically attend the entire review session. Furthermore, the review session needs to be manually organized by the review leader and the outcome of the session need to be manually compiled. In some occasions, more than one sessions are required to be organized. Hence, the objectives of this project are to: (1) create means for the reviewers to perform review anytime and anywhere; (2) facilitate collaborative review session; (3) support checklist management for the review guidance; and (4) allow compilation of the review feedback to be generated. As a case study, a web application for collaborative requirements review has been developed and tested. Finally, the features of the application are tested and issues are documented.
A Java Based Web Service Model for Library Information Discovery
Authors: Nordin A Rahman M , Hafizu Uba Usman 
Published: May 2018

Library information discovery is a vital aspect of education development and management. Nowadays, many libraries offer the information regarding to facilities, resources and services to users through their website. The existing library information systems discover only their information and do not integrate the related information from other libraries. Therefore, web service technology has been developed, which is uses a standard interface to enable the consumer-to-business (C2B) or business-to-business (B2B) easily interact over the website. Currently, there is no standard model is developed to facilitate the users to discover and integrate the information of facilities, resources and services that published in the libraries website. This article discussed the development of a web service model that can discover and integrate the information in the various libraries website to the users by using Java Technology application program interface and tools provided by the integrated Web Services Stack. In the modelling process, the library websites are converted into Extensive Markup Language format (XML) for examining the Simple Object Access Protocol (SOAP) of each website. The converted XML files are stored as the application data source, which lies as the core of the web service model. By using an XML parser, the XML files are parsed into XMLDOM format for manipulating its contents. XML request object hypertext protocol is used to receive or reload the data from the client to the server. Finally, HTML and cascading style sheet (CSS) are used to reload the information to the client and display it. The results show that the proposed model is able to achieve over 90% of information discovery average precision performance regarding to user’s query on facilities, resources and services provided in the library websites. The developed model can benefit library’s users to extract the resources, facilities and services provided by the library intelligently.
An Experience in Establishing the Mangrove Reference Data Center (MRDC) and its Augmented Reality Based Application
Authors: Syafiq Alam Shah Mohd , Azam Osman Mohd , Zawawi Talib Abdullah , Azizah Mohd Nor Siti 
Published: May 2018

Mangrove forest is an ecosystem that is highly diverse not only in mangrove plants but also supports rich assemblages of fauna and other non-mangrove floral species. It provides numerous kinds of ecosystem services that are of great benefit to humankind. However, to the general public, knowledge on the importance of mangrove ecosystems is very limited. In this paper, we present our experience in establishing the Mangrove Reference Data Center (MRDC) and its augmented reality-based mobile application called Kilim Scouter which provides information details of mangrove plants and related information to the users. MRDC is a data center that stores information details of mangrove plants in Kilim Geoforest Park in Langkawi Island, Malaysia such as common and scientific names of species, as well as its distribution (GPS location). In addition, MRDC also stores other information for example other inhabitants of the ecosystem and non-living entities such as Karstic hills and caves found in the Mangrove ecosystem. MRDC comes with a web application that acts as an interface to MRDC for accessing, adding or modifying the information details of mangrove plants. Kilim Scouter is a mobile application which deploys Augmented Reality (AR) technology, a technology through which the view of the real world environment is augmented by adding computer-generated elements/objects. Kilim Scouter utilizes the AR technology to automatically track and identify the mangrove plants and its related information, and then provides the information by retrieving data from MRDC. MRDC and Kilim Scouter are capable of providing on-the-go accessibility of information details of mangrove plants and target users such as tourists and researchers. This application will create awareness on the importance of the mangrove ecosystems and thus, assist the effort in sustaining the mangrove ecosystem.