Miracle-dz/UniFAR-FTUs huggingface dataset:
An Immersive Augmented‐Reality‐Based e‐Learning System Based on Dynamic Threshold Marker Method

In recent years, augmented reality (AR) technologies have been the subject of great interest among many communities. In education applications, old‐fashioned materials (or textbooks) are still used, despite remarkable AR developments in the industrial area. We present an AR system for education. Our system consists of an authoring tool that can be used to create educational content, a viewer that plays that content, and an engine to manage the tool and viewer. In our system, a marker unit recognizes a marker printed on a plane or a cubic plane by adaptively adjusting the threshold to have an excellent recognition rate in diverse environments and acquires corresponding data of the marker. Based on the system, we test 142 elementary school students for increased educational benefits using our system.
Automatic detection of calcification in mammograms

The authors propose a system for the detection of mammographic calcifications. Their method first segments the image into suspected calcification regions and then classifies each detected region as calcification or normal background. The segmentation method exploits new local thresholding and region growing techniques suitable for the detection of small blobs in a textured background. The next step of processing is to decrease the number of falsely detected blobs obtained in the first step using pattern recognition techniques. Seven features of the detected regions are used for classification of the segmented region. A quadratic classifier was used to classify mammographic calcification using the region's features. The results of the experimental study using a set of 20 mammographic images shows that the proposed system has a good capability to detect calcifications in mammographic images.
Multi‐year and short‐term responses of soil ammonia‐oxidizing prokaryotes to zinc bacitracin, monensin, and ivermectin, singly or in combination

A field experiment was initiated whereby a series of replicated plots received annual applications of ivermectin, monensin, and zinc bacitracin, either singly or in a mixture. Pharmaceuticals were added at concentrations of 0.1 mg/kg soil or 10 mg/kg soil. The authors collected soil samples in 2013, before and after the fourth annual application of pharmaceuticals. In addition, a 30‐d laboratory experiment was undertaken with the same soil and same pharmaceuticals, but at concentrations of 100 mg/kg soil. The impact of the pharmaceuticals on nitrification rates, on the abundance of ammonia‐oxidizing bacteria (AOB), and on the abundance of ammonia‐oxidizing archaea (AOA) was assessed. None of the pharmaceuticals at 0.1 mg/kg had any effect on nitrification. Referenced to control soil, nitrification was accelerated in soil exposed to 100 mg/kg zinc bacitracin or 10 mg/kg of the pharmaceutical mixture, but none of the treatments inhibited nitrification. Neither AOB abundance nor AOA abundance was affected by the pharmaceuticals at 0.1 mg/kg. At 10 mg/kg, monensin, zinc bacitracin, and a mixture of all 3 pharmaceuticals suppressed the abundance of AOB, and zinc bacitracin and the mixture increased AOA abundance. The decrease in AOB abundance and increase in AOA abundance when exposed to 10 mg/kg soil suggests that AOB are more sensitive to these chemicals and that AOA populations can expand to occupy the partially vacated niche. Environ Toxicol Chem 2015;34:618–625. © 2014 Canadian Crown in right of Canada. Published 2014 SETAC
(1S)‐Benzyl 3‐methyl‐5‐oxo‐4‐phenylhydrazono‐4,5‐dihydro‐1H‐pyrazole‐1‐dithiocarboxylate

The title compound, C18H16N4OS2, has been synthesized by the condensation reaction of ethyl 3-oxo-2-(phenyl­hydrazono)­butanoate and (S)-benzyl dithio­carbazate. The pyrazolone structure is stabilized by a strong N—H⋯O=C intra­molecular hydrogen bond.
Automatic alignment of a musical score to performed music

This paper presents several methods for the alignment of a music score (given in MIDI form) to a human performance of the same musical piece. Two distinct cases are considered: first, MIDI-to-MIDI alignment, where rhythm changes, note time shifts, and player errors are handled by a Dynamic-Programming (DP) algorithm. Next, a method for MIDI-to-audio alignment is presented, incorporating spectral data into the DP method. Experiments on a music database showed the effectiveness of the alignment algorithms. For cases where the alignment process gets trapped in a wrong local minimum, an efficient manual bootstrapping method was developed and shown to lead to the selection of the correct alignment.
Model Extraction and Reliability Verification on SOCKET Program

Formal method is a means to verify the reliability and safety of concurrent systems. Formal verification of model which automatically extracted from concurrent system built from high level language is a hot research topic in the field of model checking technology. With the focus on potential run time problems (deadlocks, memory leaks, the boundary data loss and other run-time errors) result from abnormal socket function call sequence, we analyze the sequence structure of the socket program and construct the Promela model of socket functions through the description of message data structures and channels, as well as define mapping rules of socket function to Promela. The socket function call sequence extraction algorithm and target Promela model generation algorithm are proposed by using linear temporal logic (LTL) to describe the property the socket function call sequence. A socket communication program analysis system has been constructed. The experiment result shows that the system can detect the potential run time problems of socket program effectively.
A Study on Designing of Metadata for Constructing the Library Map Information System

This study aimed to construct the Library Map Information System(LMIS) based on the Wiki theory of Web 2.0. We built this system because there was no collective source of information about every library in the world. Also, this system was developed to provide a library location information service by mashing-up with the Google Map. Through this study, the metadata applied to the newly constructed system was developed by using the Delphi method. A total of 13 experts including librarians of schools, public, academic, special, and national libraries as well as LIS faculty members and researchers, were commissioned as Delphi experts. Through three rounds of a Delphi survey analysis, the addition, modification, and deletion of the initial metadata elements was accomplished, and then the library contact/location information, library information, collection information, and event information was proposed. The metadata for LMIS was organized into four sectors and then 49 elements, each assigned to a sector.
ELIC-Based Texture Advection and Information Entropy-Based Feature Extraction for the Visualization of Surface Flow Field

IBFVS is a classical method for visualizing surface flow field, but the quality of the final image is inadequate to get a fully understanding for the visualized flow field. In order to improve the quality of the result image of IBFVS, this paper presents an enhanced IBFVS method based on short ELIC filtering. We take IBFVS as the basic mechanism of our method, and use ELIC filtering to process the injected background image to increase the contrast of the result image. Furthermore, we use information entropy to extract the most important features with highest information in the flow field. Experiment results show that our method generates a better visualization result than IBFVS and the information entropy-based feature extraction method distinguishes the most valuable part in the flow field.
A method to maintain templates in open source-based authoring tool for e-learning assessment items

Existing tools using in the standard e-learning contents authoring were used a method to provide users contents template produced in advance. In order to use resources of the template in a common web-based authoring tool, there is problem to overcome. If the resource of template is inserted within the contents on the authoring tool, the deformation of the template by the user`s input that may occur during the edit process cannot be controlled. In this paper, we propose an effective maintenance method to prevent deformation of the resource of template inserted into any WYSIWYG-based HTML authoring tool by user`s discretion. We added a template plug-in that can create the IMS-QTI standard resource in tynyMCE the web-based open source editor of representative examples. And the plug-in for tinyMCE was realized as a module of directly respond to the action of limited user input. So, in response to the action of user`s input, the structure of the template can be sustained possibly.
News analysis through text mining: a case study

Purpose – This paper seeks to provide a tangible example of the use of text‐mining techniques in a real world setting, i.e. using real, as opposed to test, data.Design/methodology/approach – News stories are modeled using the vector space model, with the similarity between documents quantified using the cosine measure. For data analysis, three clustering algorithms are used, and the results from the best‐performing algorithm retained.Findings – Agglomerative clustering performed poorly, while direct k‐way clustering and k‐way clustering through repeated bisections yielded similar results, with the former performing marginally better in terms of external isolation and internal cohesion of the clusters produced. A number of themes that dominated news coverage during the period under consideration were identified, some of which were noticeably only topical during certain parts of the year.Research limitations/implications – Text mining holds much promise for businesses, particularly if integrated into a well.
Canada-US border air quality strategy (BAQS): preliminary results of mortality and cancer incidence in Windsor, Canada

Windsor is one of the main Canadian cities exposed to transborder air pollution and part of the BAQS. We have analyzed all causes of mortality and cancer incidence in Windsor for the period 1979 to 1999 in comparison to provincial (Ontario) rates, using age-adjusted standardized mortality (SMRs) and standardized incidence (SIRs) ratios. In the age group 20 years and over and in both males and females, statistically significantly increased SMRs and SIRs were observed for diseases that have been associated with long-term air pollution exposure: mortality from circulatory diseases, bronchitis and emphysema, and lung cancer; lung cancer incidence. These results suggest a potential risk associated with air pollution exposure, but present the limitations inherent to mortality and cancer incidence studies. The results of further planned studies assessing these health outcomes to areas of exposure to air pollution within Windsor will be needed to provide stronger evidence to these preliminary findings.
Sliding control of magnetic bearing systems

This paper proposes a sliding control scheme to deal with the nonlinear, uncertain dynamics of magnetic bearing systems. The control scheme is designed based on a model which characterizes not only the electromagnetic interaction but also effects such as flux leakage, fringing fluxes, and finite core permeance in the magnetic bearing. The controller consists of two parts: the nominal control part that linearizes the nonlinear dynamics, and the robust control part that provides robust performance against the uncertain parameters. Since the uni-directionality of magnetic forces may render the control law ill-defined, a lemma is proved and can be used to select proper control parameters to guarantee the performance. The proposed control scheme is applied experimentally to the thrust bearing of a magnetically levitated rotor. The results indicate that the control system is capable of maintaining stability and consistent performance.
Fast and High Precision Positioning Control of High-Speed Motors

Abstract This article presents a double interrupt and frequency-doubled angle compensation control method based on the minimum inductance characteristic of high-speed motor. Moreover, this article designs a proportional-integral-integral-proportional (PI-IP) control structure to realise that the control system can track the d-axis current step response within 330µs based on the high response characteristic design requirements of the high-speed motor. The effectiveness of this method has been verified by simulations and experiments. The proposed controller has a better ability to track the speed instruction in the case of mutations of the external load. It also has an excellent robustness to respond to the speed when the rotational inertia is changed. The authors design a system to test a high-speed motor whose rated power is 100 W and rated speed is 17,000 rpm. The results show that the method above can realise the high response and high precision servo control of high-speed motor without delay effectively.
A High Efficient Incremental Microblog Crawler: Design and Implementation

With the rapid development of microblog technology, many interesting research issues in microblog have aroused growing attention. Fetching data from microblog is the groundwork of these researches. In this paper we propose a flexible multithreading microblog crawling architecture based on the classic multiproducers and multi-consumers model, and further implement a high efficient incremental microblog crawler towards Sina Microblog (also called Weibo). The designed crawler can solve the vertical crawling, dynamic webpage and automatic loginning problems which can’t be solved by the general crawler. Meanwhile it can achieve high-precision structured webdata extraction. Some measurements are designed to evaluate the crawling performance. Experimental results demonstrate that the crawler can achieve over 95% coverage and a good freshness.
A study of the impact of instructional approach on community college students’ problem solving and metacognitive abilities in the developmental mathematics course, Introductory Algebra

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A new engineering approach to reveal correlation of physiological change and spontaneous expression from video images

Spontaneous expression is associated with physiological states, i.e., heart rate, respiration, oxygen saturation (SpO2%), and heart rate variability (HRV). There have yet not sufficient efforts to explore correlation of physiological change and spontaneous expression. This study aims to study how spontaneous expression is associated with physiological changes with an approved protocol or through the videos provided from Denver Intensity of Spontaneous Facial Action Database. Not like a posed expression, motion artefact in spontaneous expression is one of evitable challenges to be overcome in the study. To obtain a physiological signs from a region of interest (ROI), a new engineering approach is being developed with an artefact-reduction method consolidated 3D active appearance model (AAM) based track, affine transformation based alignment with opto-physiological mode based imaging photoplethysmography. Also, a statistical association spaces is being used to interpret correlation of spontaneous expressions and physiological states including their probability densities by means of Gaussian Mixture Model. The present work is revealing a new avenue of study associations of spontaneous expressions and physiological states with its prospect of applications on physiological and psychological assessment.
Subphonetic modeling with Markov states-Senone

There will never be sufficient training data to model all the various acoustic-phonetic phenomena. How to capture important clues and estimate those needed parameters reliably is one of the central issues in speech recognition. Successful examples include subword models, fenones and many other smoothing techniques. In comparison with subword models, subphonetic modeling may provide a finer level of details. The authors propose to model subphonetic events with Markov states and treat the state in phonetic hidden Markov models as the basic subphonetic unit-senone. Senones generalize fenones in several ways. A word model is a concatenation of senones and senones can be shared across different word models. Senone models not only allow parameter sharing, but also enable pronunciation optimization. The authors report preliminary senone modeling results, which have significantly reduced the word error rate for speaker-independent continuous speech recognition. <<ETX>>
Injured Older Adults Transported by Emergency Medical Services: One Year Outcomes by POLST Status

Abstract Background: Advance care planning documents, including Physician Orders for Life-Sustaining Treatment (POLST), are intended to guide care near end of life, particularly in emergency situations. Yet, research on POLST during emergency care is sparse. Methods: A total of 7,055 injured patients age ≥ 65 years were transported by 8 emergency medical services (EMS) agencies to 23 hospitals in Oregon. We linked multiple data sources to EMS records, including: the Oregon POLST Registry, Medicare claims data, Oregon Trauma Registry, Oregon statewide inpatient data, and Oregon vital statistics records. We describe patient and event characteristics by POLST status at time of 9-1-1 contact, subsequent changes in POLST forms, and mortality to 12 months. Results: Of 7,055 injured older adults, 1,412 (20.0%) had a registered POLST form at the time of 911 contact. Among the 1,412 POLST forms, 390 (27.6%) specified full orders, 585 (41.4%) limited interventions, and 437 (30.9%) comfort measures only. By one year, 2,471 (35%) patients had completed POLST forms. Among the 4 groups (no POLST, POLST-full orders, POLST-limited intervention, POLST-comfort measures), Injury Severity Scores were similar. Mortality differences were present by 30 days (5.0%, 4.6%, 8.0%, and 13.3%, p < 0.01) and were greater by one year (19.5%, 23.9%, 35.4%, and 46.2%, p < 0.01). Conclusions: Among injured older adults transported by ambulance in Oregon, one in 5 had an active POLST form at the time of 9-1-1 contact, the prevalence of which increased over the following year. Mortality differences by POLST status were evident at 30 days and large by one year. This information could help emergency, trauma, surgical, inpatient, and outpatient clinicians understand how to guide patients through acute injury episodes of care and post-injury follow up.
Matching people and information resources: authentication, authorisation and access management and experiences at Macquarie University, Sydney

New horizons are beginning to emerge in terms of matching people and information resources in a networked service environment. Librarians, publishers, subscription agents, database hosts and information service aggregators are now actively engaged in rethinking information landscapes, in harnessing Internet technologies, and in finding ways to link institutional legacy systems to the web technologies in a manner that will appear transparent to the user. There is, as yet, no coherent view of the new service models and this paper attempts to foreshadow a conceptual framework on which to build sustainable service models and technical infrastructure. In doing so, particular attention is paid to the key issues of authentication, authorisation and access management which are basic building blocks for the creation of a secure and efficient networked information service environment. The experiences gained at Macquarie University with projects such as LIDDAS and PRIDE have helped in the development of the ideas presented in this paper.
The Contribution of FRBR to the Identification of Bibliographic Relationships: The New RDA-Based Ways of Representing Relationships in Catalogs

Libraries that have implemented Functional Requirements for Bibliographic Records (FRBR) are obliged to resort to auxiliary models to display bibliographic records. This article examines the use of Resource Description and Access (RDA) for recording the different types of relationships (identifiers, authorized access points, composite structured and unstructured descriptions) and how to represent them in existing formats. It also analyzes the modifications that will be needed and the elements that should be taken into account in order to develop innovative tools capable of representing relationships in the clearest and most appropriate way for users, while staying current with the latest trends in information organization.
A novel method of stable edge fragment detection

Edge detection is one of the most fundamental and important research fields in computer vision and image processing. This paper proposed a novel method, which focuses on edge fragments, not on individual pixels. The stability of each edge fragment, represented by the relative change of the skeleton over a given range of threshold, was analyzed to select the stable ones. The result of detection is a bunch of stable edge fragments in a forest structure, and the synthesis of them gives a single edge image. Experiments show that it is comparable with popular detectors in edge detection tasks, and it has got many particular advantages, like its stableness and fragment structure.
Measurements of reflection characteristics and refractive indices of interior construction materials in millimeter-wave bands

The reflection characteristics and refractive indices of construction materials in the millimeter wave bands are needed for development of millimeter-wave application systems such as indoor communication systems and short-range sensing systems. Because so little experimental data of construction materials at millimeter-wave bands has been available, the authors have measured the reflection and transmission coefficients of a concrete plate, plasterboard, rock wool, a floorboard, a carpet tile, at 57.5, 78.5, and 95.9 GHz. The refractive indices of the materials that can be modeled as a homogeneous dielectric plate with a smooth surface were estimated by the combined use of reflection and transmission data. The refractive indices of a concrete plate, plasterboard, a floorboard, and rock wool at 57.5 GHz were found to be 2.55-j0.084, 1.50-j0.01, 1.98-j0.083, and 1.26-j0.005, respectively. These indices showed little frequency dependence in the measured frequency range, except for that of the floorboard, which varied about 10%. The authors also measured the reflection characteristics of materials with inhomogeneous structures or rough surfaces, and found that the specular reflection from a concrete plate and a floorboard can be reduced significantly by covering them with carpet tiles with rough surfaces.
Synthesis of multiple‐pattern planar antenna arrays with single prefixed or jointly optimized amplitude distributions

Previous work on the generation of multiple radiation patterns by a single linear array antenna with an unchanging excitation amplitude distribution is generalized to planar arrays. The amplitude distribution common to all of the excitation distributions can be prefixed or optimized jointly with the phase distributions. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 74–78, 2002.