Miracle-dz/UniFAR-FTUs huggingface dataset:
The Role of Beliefs in the Use of Information Technology: implications for teacher education, or teaching the right thing at the right time

ABSTRACT The decision of teachers whether to use or not to use computers depends on two basic categories of factors: factors at the school level and factors at the teacher level. At the school level the principal plays an important role in the support of innovations in school. The principal supplies financial, organizational and moral support and should give the innovation a long‐term perspective. However, teacher factors outweigh school‐level factors. Teachers have strong beliefs with respect to the content of their subject matter as well as to its pedagogy. The case studies described in this article show that those beliefs appear to change only very slowly. Teachers adopt new media if they can use them in accordance with their existing beliefs and practices. From the results of this research, implications are drawn with respect to the content and strategy of initial and in‐service teacher training in the field of information technology (IT).
E-Government Architecture In Jordan: A Comparative Analysis

This study explains architecture for the E-Government system; its main concepts, objectives, most common applications, famous worldwide experiences and the E-Government in Jordan. It introduces the E-Government model as a modern evolution of Information and Communication Technology (ICT) and how to convert the life of societies to the communication and networked age. It presents the experiences of countries like USA, UK, Singapore, UAE and Egypt. The study focuses on launching the E-Government project in Jordan, the main planning and implementation features noticed there and the main obstacles. It proposes a simplified model for some of the Jordan E-Government Portal Online services.
Burst-error-correcting array codes

Classes of array codes for correcting bursts of errors, bursts of erasures, and mixed error-and-erasure bursts, are described. A specific example of a burst-error-correcting array code, and its decoder, is given. These codes have relatively high rates, small decoding delay, simple encoding and decoding algorithms, and are capable of high-speed operation. Array codes have a wide range of application in digital communications.
The key techniques of 3D visualization of oceanic temperature field

Visualization is an important means of understanding and explaining the natural phenomena. The visualization of ocean can help us understand and utilize the undersea world. As we know, the ocean is a real three-dimensional space, so the visualization includes not only the simulation of interface terrain (such as sea water surface, sea bottom, etc.) but also the hydrographic feature (such as salinity, temperature, pressure, current directions etc.). In this paper, taking the temperature field in the sea as the example, we discussed the visualization of data of space-fulfilled field from a viewpoint located in the field. We analyzed the acquisition and interpolation of 3-D oceanic data in section 2, proposed an Octree model in section 3, introduced visualization in scientific computing and implemented temperature field visualization based on volume rendering in section 4. Lastly, some conclusions are given in section 5.
Ontology Based Approach for Diagnosis in Personalized Medicine

Due to complexity of the human body, overlapping phenotypes and complex disease networks, disease diagnosis is a real challenge for the physicians. Medical diagnostic decision support systems have been developed as an approach to ease the process of disease diagnosis. Improved patient safety, improved quality of care and improved efficiency in health care delivery are potential benefits of MDDSS. This research proposes a novel and generic mathematical model into differential diagnosis of genetic diseases instead of traditional method of analyzing gene mutations to expose genetic diseases. It is achieved by genotype-phenotype correlation thro-ugh a common computer science concept called Ontology. Basically emerging genetic mutations of the patient are mapped to the standardized vocabulary called Human Phenotype Ontology and subsequently differential diagnosis is done using those terms. Differential diagnosis process is achieved by measuring ontology based semantic similarity by combining information theory and fuzzy relational theory. The system is capable of diagnosing the probability of occurrence of five complex diseases namely Lymphedema-Distichiasis Syndrome, Cornelia de Lange syndrome-me, Popliteal pterygium syndrome, Cohen Syndrome and Smith-Lemli-Opitz Syndrome. We evaluate our system by comparing the results obtained from our system with domain expert’s diagnosis. Pre-diagnosed set of real Cornelia de Lange syndrome patients’ data were used in this attempt. According to the results, our system diagnoses Cornelia de Lange Syndrome with an average probability of 78.32%, Smith-Lemli-Opitz Syndrome has 61.35% probability and other three diseases with very low probability values. This thesaurus based approach which considers a correlation of phenotypes and genotype of a patient can be used by a physician to make a better diagnosis of a disease.
A festival of facts

Consider yourself invited to a filmfestival — a festival of shorts. Regrettably it is a festival with a limitation: you will not be able actually to see the films. However, this limitation is offset by an unusual feature: the films to be shown are not only short but ultrashort — with one exception, each film consists of only a few frames. Instead of showing the films we shall be able to give a complete description of them.
An improved channel sounding technique applied to wideband mobile 900 MHz propagation measurements

Channel sounding experimental equipment to measure the wideband and variability characteristics of the 900 MHz mobile radio channel is presented. This equipment uses a modulated carrier, but no analog correlator. Various sources of nonlinearities may significantly degrade the dynamic range of estimated impulse response and, more seriously, introduce spurious signals undistinguishable from actual response components. The channel impulse responses are evaluated by a computerized postprocessing. A numerical technique for evaluating impulse responses, different from the classical correlation technique, is presented. Based on a regularized inversion and a windowing process, the signal processing algorithm is shown to produce responses with improved dynamics and resolution. <<ETX>>
International Workshop on Information and Electronics Engineering ( IWIEE ) Research and Design on E-government Information Retrieval Model

At present, most government websites have not given full play to the internet’s characteristic such as share, interaction. The public satisfaction is poor. Therefore, this article puts forward an e-government information retrieval model based on the metadata. Firstly it builds an e-government information resource database, and all kinds of different types of resources are uniformly stored in the resource database; Secondly, the resources are described by metadata, and e-government information resources metadata scheme is designed; Thirdly, the metadata extraction algorithm is designed to extract the metadata elements of e-government information resources; Finally, e-government information resources storage and retrieval schemes are designed. The experiment result shows that the information retrieval method based on metadata can improve the e-government information retrieval efficiency and precision, and realizes the share of e-government resources. Thus it is a practical approach for the task of e-government information retrieval. © 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
Cooperative visual team working and target tracking of mobile robots

The problem of visual coordination and target tracking mobile robots cooperating in an unstructured environment is addressed. In this paper, we consider a team of semi-autonomous robots controlled by a remote supervisory control system. We present an algorithm for visual position tracking of individual cooperative robots within their working environment. Initially, we present a technique suitable for visual servoing of a robot toward its landmark targets. Then, we present an image-processing technique that utilizes images from a remote surveillance camera for localization of the robots within the operational environment. In this algorithm, the surveillance camera can be either stationary or mobile. The supervisor control system keeps tracks of relative locations of individual robots and utilizes relative coordinates information of the robots to coordinate their cooperative activities. We present some results of this research effort that illustrates the effectiveness of the proposed algorithms for cooperative robotic systems visual team working and target tracking.
An analytical access time model for on-chip cache memories

An analytical access time model for on-chip cache memories that shows the dependence of the cache access time on the cache parameters is described. The model includes general cache parameters, such as cache size (C), block size (B), and associativity (A), and array configuration parameters that are responsible for determining the subarray aspect ratio and the number of subarrays. With this model, a large cache design space can be covered, which cannot be done using only SPICE circuit simulation within a limited time. Using the model, it is shown that for given C, B, and A, optimum array configuration parameters can be used to minimize the access time; if the optimum array parameters are used, then the optimum access time is roughly proportional to the log (cache size), and when the optimum array parameters are used, larger block size gives smaller access time, but larger associativity does not give smaller access time because of the increase of the data-bus capacitances. >
A NOVEL MECHANISM BASED ON ARTIFICIAL LOGICAL SPIDER WEB FOR REROUTING IN MPLS NETWORKS

Multiprotocol label switching (MPLS) is a hybrid solution that combines the advantages of easy forwarding with the ability of guaranteeing quality-of-service (QoS). To deliver reliable service, MPLS requires traffic protection and recovery. Rerouting is one such recovery mechanism. In this paper, we propose a novel rerouting model called DDRAAS that is inspired by the spider and its web in nature. We try to establish an artificial logical spider web in the MPLS network to reorganise it into a structure that is more regular and simple. Based on this, we give the definition of the reroute area. Artificial spiders are then used to explore recovery paths dynamically in the reroute area. DDRAAS can be used to calculate the recovery paths in advance in order to protect the work path, while the improved DDRAAS can be a fast rerouting algorithm to calculate and establish recovery paths when faults occur. We have simulated our mechanism using the MPLS network simulator (MNS) and the performance metrics were compared to those of other proposals. The simulation results show that our mechanism is better in reducing packet loss, disorder and has faster rerouting speed. These improvements help to minimise the effects of link failure and/or congestion.
3D reconstruction software comparison for short sequences

Large scale multiview reconstruction is recently a very popular area of research. There are many open source tools that can be downloaded and run on a personal computer. However, there are few, if any, comparisons between all the available software in terms of accuracy on small datasets that a single user can create. The typical datasets for testing of the software are archeological sites or cities, comprising thousands of images. This paper presents a comparison of currently available open source multiview reconstruction software for small datasets. It also compares the open source solutions with a simple structure from motion pipeline developed by the authors from scratch with the use of OpenCV and Eigen libraries.
An Ontology of Blood Pressure: A Case Study Using Protégé OWL

Although there are vast amounts of information accessible through Web technology, retrieving specifically related information through the Internet can still be difficult. In order to cope with this problem, the World Wide Web Consortium has developed an extension of the current Web called The Semantic Web. The Semantic Web is a standardized mechanism for obtaining meaningful definitions and a fundamental philosophic logic that relates entitites by means of integral relations (the basis for granularity) using conceptual ontology. In this article, the authors describe the essential features of OWL, an Ontology Web Language, and the Semantic Web, and outline their respective representations in Protege. The authors then utilize OWL to formulate an ontology of blood pressure by extending Kumar and Smith’s original blood pressure case study to a domain composed of medical entities. We have a software package that comes with this paper to demonstrate the Ontology for Blood Pressure to a domain composed of medical entities.
Small-signal models and dynamic performance of quasi-square-wave ZVS converters with voltage-mode and current-mode control

Small-signal models of quasi-square-wave (QSW) converters are obtained by using state-space averaging. These models are used to perform a comparative study which shows that current-mode control of QSW converters does not provide the improved dynamic performance with respect to voltage-mode control that can be found in the case of PWM and quasi-resonant converters.
Implications of interface management for modularity degree

Purpose – The purpose of this paper is to demonstrate modularity degree in terms of interfaces and innovation.Design/methodology/approach – The research objective is achieved through a modeling approach for deciding modular architecture and its implementation regarding unique components and product innovation. A case example is presented to elaborate on the concept of modularity degree and provide an option for choosing the best module from different alternatives.Findings – The presented approach can be considered a product design strategy, in which loose coupling is achieved through standardized component interfaces. Loosely coupled component interfacing is a prerequisite for developing mass customized products. There needs to be a decision support system to formulate the interfacing in order to achieve maximum benefits. This is illustrated in this paper.Research limitations/implications – The modeling strategy for measuring the modularity level is formulated theoretically. This approach needs to be vali.
Chance-constrained programming approach to stochastic congestion management considering system uncertainties

Considering system uncertainties in developing power system algorithms such as congestion management (CM) are a vital issue in power system analysis and studies. This study proposes a new model for network CM based on chance-constrained programming (CCP), accounting for the power system uncertainties. In the proposed approach, transmission constraints are taken into account by stochastic rather than deterministic models. The proposed approach considers network uncertainties with a specific level of probability in the optimisation process. Then, single and joint chance-constrained models are implemented on the stochastic CM. Finally, an analytical approach is used to derive the new model of the stochastic CM. In both models, the stochastic optimisation problem is transformed into an equivalent easy-to-solve deterministic problem. Effectiveness of the proposed approach is evaluated by applying the method to the IEEE 30-bus test system. The results show that the proposed CCP model outperforms the existing models as the analytical solving approach applies fewer approximations and moreover, may have less complexity and computational burden in some special situations.
Image processing using spatial and wavelength multiplexing

The main advantage of optical image processing with respect to its electronic counterpart is the high degree of parallelism. This characteristic can be boosted by feeding an optical system with several channels simultaneously. Several ways to perform this multiplexing can be devised. In this talk we focus on the spatial multiplexing, were several channels share the spatial bandwidth of the system input and wavelength multiplexing, were the channels are input in different wavelengths simultaneously. Principle and applications are discussed, along with several possible architectures for image processing systems.
Automatic syllable segmentation of Myanmar texts using finite state transducer

Abstract — Automatic syllabification lies at the heart of script processing especially for the South East Asian scripts like Myanmar. Myanmar syllabification algorithms implemented so far are either rule-based or data-driven approach. This paper proposes a new method for Myanmar syllabification which deploys formal grammar and un-weighted finite state transducers (FST) as Myanmar syllabification relies heavily on formal model of syllable structure. Our proposed method focuses on orthographic way of syllabification for the input texts encoded in Unicode. We tackle syllabification of Myanmar words with standard syllable structure as well as words with irregular structures such as kinzi, consonant stacking which have not been resolved by previous methods. Our FST based syllabifier was tested on 11,732 distinct words extracted from Myanmar Orthography Corpus. The 11,732 words yielded 32,238 syllables and are compared with correctly hand syllabified words. Our FST based syllabification method performs with 99.93% accuracy and we use Stuttgart FST tools for our experiments.
Effects of Current Spreading in GaN-based Light-emitting Diodes Using ITO Spreading Pad

In conventional LEDs, a mesa-structure is usually used and it causes the current to be overcrowded in a specific region. We propose a novel structure of GaN-based LED to overcome this problem. In order to distribute the current in an active region, a spreading pad is inserted at the p-type region in the GaN based LED device. The inserted spreading pad helps the current flow because it is more conductive than the p-type GaN layer. By performing electrical and optical simulations, the effects of the spreading pad insertion are confirmed. The results of electrical simulation show that the current spreads more uniformly and more radiative recombination is produced as well. Moreover, from the optical simulation, it is revealed that the ITO is less absorptive material than p-GaN if the condition of specific wavelength sources is satisfied. Considering all of the results, we can conclude that the luminescent power is enhanced by the spreading pad.
Distillation and Visualization of Spatiotemporal Structures in Turbulent Flow Fields

Although turbulence suggests randomness and disorder, organized motions that cause spatiotemporal 'coherent structures' are of particular interest. Revealing such structures in numerically given turbulent or semi-turbulent flows is of interest both for practically working engineers and theoretically oriented physicists. However, as long as there is no common agreement about the mathematical definition of coherent structures, extracting such structures is a vaguely defined task. Instead of searching for a general definition, the data visualization community takes a pragmatic approach and provides various tool chains implemented in flexible software frameworks that allow the user to extract distinct flow field structures. Thus physicists or engineers can select those flow structures which might advance their insight best. We present different approaches to distill important features from turbulent flows and discuss the necessary steps to be taken on the example of Lagrangian coherent structures.
COMPUTING DIRICHLET-TO-NEUMANN MAPS FOR NUMERICAL SIMULATION OF PHOTONIC CRYSTAL STRUCTURES

Photonic crystals (PhCs) have promising applications in future inte- grated circuits based on lightwaves. A typical PhC structure or device has many identical unit cells. Based on the Dirichlet-to-Neumann maps of the unit cells, we have developed efficient numerical methods for analyzing various PhC structures. In this paper, these works are briefly reviewed.
Light Emitting Diodes (LED) for Aqueous Light Bleaching of Paper

Abstract High performance daylight LED lamps are compared with HID lamps for light bleaching of paper. The LED can be placed in closer proximity to the object than the HID lamps, causing a significantly increased, uniform light exposure. Two commercial LED systems with 4000 K and 6500 K colour temperature were installed in a convertible test device with a polypropylene tray in default exposure distance of 10 cm and 20 cm. A HID lamp in 60 cm and 120 cm distance served as a reference. Samples of two naturally aged rag papers were bleached with both LED systems and with the HID while immersed in water. All three light sources increased brightness (CIELAB L*), though the LEDs with 4000 K colour temperature were most effective. They had no negative effect on the molar mass and the cellulose carbonyl group content while LEDs with 6500 K colour temperature caused molar mass decrease and carbonyl group increase. LEDs of a 4000 K or similar colour temperature are a promising option for improved light bleaching of paper, reducing the treatment and aqueous exposure time and eliminating UV radiation.
Object’s Border and Position Allocating in an X-Ray Image

This paper is concerned with an algorithm of determining a position of an object and its borders in an X-Ray image. The algorithm is based on a preliminary estimation of a histogram of given image. The information retrieved from estimation provides complementary parameters for further edge detection. As a result, this approach allows reducing the processing time. The future research and development of the algorithm will be aimed at object tracking in real-time systems.
CONCURRENT ENGINEERING : Research and Applications Modelling Manufacturing Capability to Support Concurrent Engineering

Providing a consistent source of manufacturing information to both users and applications is key to the successful CAE support of concurrent engineering This paper describes an information model that aims to fulfill this role This information model, which has been named the "Manufactunng Model," is intended to enable the manufacturing capability of a particular facility to be reliably represented The model consists of three types of information, namely manufacturing resources, processes and strategies The Manufacturing Model has four levels based on a de-facto standard (i e , Factory, Shop, Cell, Station) This information model has been modelled in EXPRESS and developed using the Booch Object Oriented Methodology In order to validate this approach the characteristics and capabilities of a number of complex contemporary turning centres and related manufacturing processes have been modelled at the Station Level An experimental software implementation of the Station level has been developed using DEC Object/DB and C ++ The Manufacturing Model is one key element of a prototype research system called the Model Oriented Simultaneous Engineering System (MOSES) which aims to support concurrent engineering more effectively than conventional CAE systems