Miracle-dz/UniFAR-FTUs huggingface dataset:
Research of information interaction simulation method in Cooperative Vehicle Infrastructure System

The efficiency and performance of simulation method for information interaction process of Vehicular Ad-hoc Network (VANET) plays a crucial role in future Cooperative Vehicle Infrastructure System (CVIS). This paper puts forward a simulation method for information interaction process in CVIS based on the High Level Architecture (HLA) platform which consists of traffic simulator based on Paramics, network simulator based on OPNET and communication evaluation system in which evaluation indexes are integrated into the evaluation architecture through link-relative method. The simulation components act in close coordination with proposed time synchronization mechanism adaptively with feedback of their time differences. The test traffic scenario was built for the simulation method. The outstanding simulation results show that the time synchronization mechanism can shorten the time difference between Paramics and OPNET with proper step size, and the communication evaluation method we proposed in simulation platform can reflect the variation tendency of communication performance of VANET simulation system.
MARGIN: Maximal Frequent Subgraph Mining

The exponential number of possible subgraphs makes the problem of frequent subgraph mining a challenge. The set of maximal frequent subgraphs is much smaller to that of the set of frequent subgraphs, thus providing ample scope for pruning. MARGIN is a maximal subgraph mining algorithm that moves among promising nodes of the search space along the "border" of the infrequent and frequent subgraphs. This drastically reduces the number of candidate patterns considered in the search space. Experimental results validate the efficiency and utility of the technique proposed.
Concept Indexing: A Fast Dimensionality Reduction Algorithm With Applications to Document Retrieval and Categorization

Abstract : In recent years, we have seen a tremendous growth in the volume of text documents available on the Internet, digital libraries, news sources, and company-wide intranets. This has led to an increased interest in developing methods that can efficiently categorize and retrieve relevant information. Retrieval techniques based on dimensionality reduction, such as Latent Semantic Indexing (LSI), have been shown to improve the quality of the information being retrieved by capturing the latent meaning of the words present in the documents. Unfortunately, the high computational requirements of LSI and its inability to compute an effective dimensionality reduction in a supervised setting limits its applicability. In this paper we present a fast dimensionality reduction algorithm, called concept indexing (CI) that is equally effective for unsupervised and supervised dimensionality reduction. CI computes a k-dimensional representation of a collection of documents by first clustering the documents into k groups, and then using the centroid vectors of the clusters to derive the axes of the reduced k-dimensional space. Experimental results show that the dimensionality reduction computed by CI achieves comparable retrieval performance to that obtained using LSI, while requiring an order of magnitude less time. Moreover, when CI is used to compute the dimensionality reduction in a supervised setting, it greatly improves the performance of traditional classification algorithms such as C4.5 and kNN.
Acquisition of Desiccation Tolerance and Longevity in Seeds of Arabidopsis thaliana (A Comparative Study Using Abscisic Acid-Insensitive abi3 Mutants)

Two new abscisic acid (ABA)-insensitive mutants of Arabidopsis thaliana affected in the abi3 locus are described. These new mutants are severely ABA insensitive. Like the earlier described abi3–1 and the ABA-deficient and -insensitive double mutant aba,abi3, these new mutants vary in the extent of ABA-correlated physiological responses. Mutant seeds fail to degrade chlorophyll during maturation and show no dormancy, and desiccation tolerance and longevity are poorly developed. Carbohydrate accumulation as well as synthesis of LEA or RAB proteins are often suggested to be essential for acquisition of desiccation tolerance. In this work two points are demonstrated. (a) Accumulation of carbohydrates as such does not correlate with acquisition of desiccation tolerance or longevity. It is suggested that a low ratio of mono- to oligosac-charides rather than the absolute amount of carbohydrates controls seed longevity or stability to desiccation tolerance. (b) Synthesis of a few assorted proteins, which is responsive to ABA in the later part of seed maturation, is not correlated with desiccation tolerance or longevity.
The Escape Bu er: E cient Computation of Escape Time for Linear Fractals

The study of linear fractals has gained a great deal from the study of quadratic fractals, despite important di erences. Methods for classifying points in the complement of a fractal shape were originally developed for quadratic fractals, to provide insight into their underlying dynamics. These methods were later modi ed for use with linear fractals. This paper reconsiders one such classi cation, called escape time, and presents a new algorithm for its computation that is signi cantly faster and conceptually simpler. Previous methods worked backwards, by mapping pixels into classi ed regions, whereas the new forward algorithm uses an \escape bu er" to mapping classi ed regions onto pixels. The e ciency of the escape bu er is justi ed by a careful analysis of its performance on linear fractals with various properties.
Practical Remote Microscopy Using KVM over IP

Remote microscopy has become an important technique to leverage expensive instrumentation and provide greater access to researchers who can’t be present at the instrument. There are several ways to interact with remote users: 1. ) Allow “over the shoulder” imaging where the user can see the images, but not control the instrument; 2. ) Allow full or limited control of the instrument by the remote user.
Machinability of 7116 Structural Aluminum Alloy

ABSTRACT The aim of the present work is to study the effect of heat treatment conditions on the surface roughness of 7116 structural aluminum alloy. The specimens were prepared by casting to attain the required chemical composition, and then hot extruded to form bars. The extruded bars were then subjected to the different proposed heat treatment cycles, namely, annealed, naturally aged, artificially aged, and artificially aged with superimposed free forging and the as-received condition. The specimens were then turned at different cutting conditions—velocities, feeds, and depth of cuts—using high speed tools (HSS). The surface roughness values were then assessed. Based on the results obtained, the artificially aged condition with superimposed effect of cold forging shows the best machinability (presented by the measured surface roughness) as a result of the increase in hardness. Hardness has a pronounced effect on the formation of built-up edge (BUE) for the material under investigation.
Mortgage Default: Classification Trees Analysis

We apply the powerful, flexible, and computationally efficient nonparametric Classification and Regression Trees (CART) algorithm to analyze real estate mortgage data. CART is particularly appropriate for our data set because of its strengths in dealing with large data sets, high dimensionality, mixed data types, missing data, different relationships between variables in different parts of the measurement space, and outliers. Moreover, CART is intuitive and easy to interpret and implement. We discuss the pros and cons of CART in relation to traditional methods such as linear logistic regression, nonparametric additive logistic regression, discriminant analysis, partial least squares classification, and neural networks, with particular emphasis on real estate. We use CART to produce the first academic study of Israeli mortgage default data. We find that borrowers’ features, rather than mortgage contract features, are the strongest predictors of default if accepting icbadli borrowers is more costly than rejecting “good” ones. If the costs are equal, mortgage features are used as well. The higher (lower) the ratio of misclassification costs of bad risks versus good ones, the lower (higher) are the resulting misclassification rates of bad risks and the higher (lower) are the misclassification rates of good ones. This is consistent with real-world rejection of good risks in an attempt to avoid bad ones.
“Cancer – Educate to Prevent” – High-School Teachers, the New Promoters of Cancer Prevention Education Campaigns

Cancer is one of the leading causes of death worldwide, and thus represents a priority for national public health programs. Prevention has been assumed as the best strategy to reduce cancer burden, however most cancer prevention programs are implemented by healthcare professionals, which constrain range and educational impacts. We developed an innovative approach for cancer prevention education focused on high-school biology teachers, considered privileged mediators in the socialization processes. A training program, “Cancer, Educate to Prevent” was applied, so that the teachers were able to independently develop and implement prevention campaigns focused on students and school-related communities. The program encompassed different educational modules, ranging from cancer biology to prevention campaigns design. Fifty-four teachers were empowered to develop and implement their own cancer prevention campaigns in a population up to five thousands students. The success of the training program was assessed through quantitative evaluation – questionnaires focused on teachers' cancer knowledge and perceptions, before the intervention (pre-test) and immediately after (post-test). The projects developed and implemented by teachers were also evaluated regarding the intervention design, educational contents and impact on the students' knowledge about cancer. This study presents and discusses the results concerning the training program “Cancer, Educate to Prevent” and clearly shows a significant increase in teacher's cancer literacy (knowledge and perceptions) and teachers' acquired proficiency to develop and deliver cancer prevention campaigns with direct impact on students' knowledge about cancer. This pilot study reinforces the potential of high-school teachers and schools as cancer prevention promoters and opens a new perspective for the development and validation of cancer prevention education strategies, based upon focused interventions in restricted targets (students) through non-health professionals (teachers).
MWEDM constant tension control system

To achieve higher accuracy of Micro Wire Electrical Discharge Machining (MWEDM) and solve the problem that the wire electrode is easy to broken, this paper studies the dual-motor optimal control of wire electrode constant tension system. Aiming to eliminate the tension measurement noise caused by the vibration of wire electrode etc., Kalman filtering algorithm is proposed to fuse tension and speed sensor. The accurate dual input dual output mathematical model of wire drawing and tension wheel is established, the minimum performance index which is the sum of the wire speed and tension squared error is achieved by optimal control, which make the accuracy of the tension improved greatly. The disturbance observer is employed for the actual processing environment to cancel the modeling error and interference. The simulation results show that the expected control performances are achieved.
Microfluidic channels fabricated on mesoporous electrospun fiber mats: A facile route to microfluidic chips

We report a facile way of preparing microfluidic channels filled with electrospun functional fibers. Patterned elastic molds were in tight contact with electrospun fiber mats without any leak of the analyte solution. As an example of the simple devices, we demonstrated a microfluidic protein chip selectively purifying histidine-tagged proteins. Highly mesoporous nitrilotriacetic acid-functionalized polystyrene (PS-NTA) fibers were produced by taking advantage of interpenetrating phase separation between PS and PEO during electrospinning. The specific interaction of Ni-complexed PS-NTA fibers with histidine enabled us to immobilize only target proteins from highly heterogeneous protein mixtures. The easy process to fabricate functionalized microchannels combined with the high production throughput from electrospinning may greatly contribute to chip-based chromatographic and bioanalytical devices. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2011
Error correction and diversity analysis of population mixtures determined by NGS

The impetus for this work was the need to analyse nucleotide diversity in a viral mix taken from honeybees. The paper has two findings. First, a method for correction of next generation sequencing error in the distribution of nucleotides at a site is developed. Second, a package of methods for assessment of nucleotide diversity is assembled. The error correction method is statistically based and works at the level of the nucleotide distribution rather than the level of individual nucleotides. The method relies on an error model and a sample of known viral genotypes that is used for model calibration. A compendium of existing and new diversity analysis tools is also presented, allowing hypotheses about diversity and mean diversity to be tested and associated confidence intervals to be calculated. The methods are illustrated using honeybee viral samples. Software in both Excel and Matlab and a guide are available at http://www2.warwick. ac.uk/fac/sci/systemsbiology/research/software/, the Warwick University Systems Biology Centre software download site.
Raman Spectroscopy Study on the Hydration Behaviors of Portland Cement Pastes during Setting

AbstractIn the research reported in this paper, an in-situ observation on the hydration of cement pastes with various water-to-cement (w/c) ratios was implemented by Raman spectroscopy (RS). The RS was applied to study the paste continuously after cement mixing with water until the final setting was complete. Hydration products, including calcium hydroxide (CH), calcium-silicate-hydrate (C-S-H) gel, and ettringite were detected. The CH and C-S-H gel were present consistently with slight intensity changes in the RS patterns after their first detections. In all the pastes studied, the intensity of ettringite remained constant first, followed by a rapid increasing period; thereafter it began to decrease. Within the measuring duration a new peak assigned to monosulfate was detected in the pastes with w/c ratios of 0.35 and 0.40. These Raman detections were also analyzed together with the setting time and heat evolution to elucidate the early hydration mechanism.
Reverberation Chamber Modeling Based on Image Theory: Investigation in the Pulse Regime

In this paper, we propose a straightforward 3-D time-domain model of a reverberation chamber (RC) based on image theory. This model allows one to describe the earliest moments of an arbitrary waveform in an RC. Time domain and frequency domain results from this model are analyzed and compared with measurements conducted in a RC.
Optimal Generation Dispatch With High Penetration of Photovoltaic Generation

Power system operation practices are changing with the addition of renewable energy resources such as photovoltaic (PV) sources. The diverse and intermittent nature of these resources demands new operation strategies to ensure system reliability. As more PV units are added to power systems, the power generated by conventional generation resources should be reduced to accommodate these new resources. The reduction in fossil-fired generation allows realization of benefits in the sustainability of the generation mix. While some of the conventional generating units are retired, some should be retained for system reliability. This paper investigates the impact of generation redispatch or generation displacement in systems with high PV penetration. Comparing various study scenarios, a method based on regression techniques and Chebyshevs inequality is introduced in this paper. This method is used to calculate the dispatch or displacement ratio of the conventional generators for optimal steady state and transient response of the system. Recommendations are formulated based on an actual large-scale power system in the western United States.
Recovery from Out-of-Hospital Cardiopulmonary Arrest Due to Type A Acute Aortic Dissection: A Case Report

Case: A 55-year-old man without past medical histories suffering from back pain for two weeks was successfully resuscitated from an 8-min cardiopulmonary arrest (CPA) and was brought to our hospital by ambulance. Computed tomography demonstrated type A acute aortic dissection (AAAD) with brachiocephalic artery occlusion. After admission, Glasgow Coma Scale score improved to E1VTM4, and voluntary movement was noted only in the right limbs. Outcome: The patient underwent emergency grafting of the ascending aorta and innominate artery under deep hypothermic circulatory arrest. After surgery, the patient recovered with mild disorientation and left hemiplegia. Magnetic resonance imaging of the head revealed no large infarction but revealed multiple acute ischemic changes. One year later, the patient demonstrated independent walk and successfully returned to work life. Conclusions: Immediate resuscitation and surgery resulted in good recovery from CPA after AAAD.
Ocular Immune Privilege Promoted by the Presentation of Peptide on Tolerogenic B Cells in the Spleen. II. Evidence for Presentation by Qa-11

Ocular immune privilege is the result of several unique features of the eye, including the systemic down-regulation of Th1 immune responses to Ags encountered in the anterior chamber of the eye—a phenomenon termed anterior chamber-associated immune deviation (ACAID). The induction of ACAID requires the participation of three cell populations: the ocular ACAID APC, the splenic B cell, and the splenic T cell. Because B cells have been implicated in tolerogenic Ag presentation in other systems, we hypothesized that B cells were responsible for the induction of regulatory T cells in ACAID. The central hypothesis for this study is that APC from the eye migrate to the spleen where they release antigenic peptides (OVA) that are captured and presented to T cells by splenic B cells. A combination of in vitro and in vivo studies demonstrated that splenic B cells, incubated with ACAID APC in vitro, were capable of inducing ACAID when transferred to naive mice. The induction of ACAID required the normal expression of β2-microglobulin on both the B cell and ACAID APC, but not on the T suppressor cells. Moreover, the induction of ACAID regulatory cells required histocompatibility between the B cells and regulatory T cells at the TL/Qa region. The results indicate that: 1) B cells are necessary for the induction of ACAID; 2) ACAID B cells do not directly suppress the expression of delayed-type hypersensitivity; and 3) the induction of Ag-specific regulatory T cells by ACAID B cells requires histocompatibility at the TL/Qa region.
High thermally conducting composites obtained via in situ exfoliation process of expandable graphite filled polyamide 6

In this article, high thermally conducting polymer composites were prepared by low temperature expandable graphite (LTEG) filling polyamide 6 (PA6) via an in situ exfoliation process during melt blending. Thermal conductivity of the composites was measured by hot disk method and a very high value of 32.33 W/mK was obtained at the LTEG loading fraction of 70% by weight. Dynamic rheology analysis was applied to determine the structural change by the interconnection of the in situ exfoliated graphite flakes. X-ray diffraction (XRD) analysis confirmed that the exfoliation of LTEG was crucial to the overall thermal conductivity of the composites. Based on differential scanning calorimetry (DSC) data, the introduction of LTEG had little effect on the melting behavior of the composites, but a prominent heterogeneous nucleation effect and greatly accelerated its crystallization procedure of PA6. POLYM. COMPOS. , 34:1816–1823, 2013. © 2013 Society of Plastics Engineers
Excretion of Brucella abortus vaccine B19 strain during a reproductive cycle in dairy cows

This paper aimed to determine the excretion period of B19 vaccine strain during a complete reproductive cycle (from estrus synchronization, artificial insemination, pregnancy and until 30 days after parturition) of dairy cows from 3 to 9 years old that were previously vaccinated from 3 to 8 months. Three groups were monitored with monthly milk and urine collection during 12 months: G1 with seven cows from 3 to 4 years old; G2 with three cows from 5 to 6 years old; and G3 with four cows from 7 to 9 years old. Urine and milk samples were submitted to bacteriological culture and urine and PCR reactions for detection of Brucella spp. and PCR-multiplex for B19 strain identification. Ring test (RT) was also performed in the milk samples, and serum samples were tested by buffered acidified plate antigen test (BAPA). All animals were serologically negative at BAPA and Brucella spp. was not isolated from both urine and milk samples. RT revealed 13/210 (6.2%) positive milk samples. PCR reactions detected DNA of Brucella spp. in 86/420 (20.5%) samples. In urine it was found a significantly higher frequency (35.2%; 74/210) than in milk (5.7%; 12/210), more frequently from the estrus to 150 days of pregnancy and after parturition (6.7%; 10/150), and from 150 days of pregnancy to parturition (3.4%; 2/60), and they were all identified as B19 strain. In three groups, intermittent excretion of B19 strain was detected mainly in urine samples, which confirmed its multiplication and persistence in cows for until 9 years.
Exploiting a Multilingual Web-based Encyclopedia for Bilingual Terminology Extraction

Multilingual linguistic resources are usually constructed from parallel corpora, but since these corpora are available only for selected text domains and language pairs, the potential of other resources is being explored as well. This article seeks to explore and to exploit the idea of using multilingual web-based encyclopedias such as Wikipedia as comparable corpora for bilingual terminology extraction. We propose an approach to extract terms and their translations from different types of Wikipedia link information and data. The next step will be using a linguistic-based infouflation to re-rank and filter the extracted term candidates in the target language. Preliminary evaluations using the combined statistics-based and linguistic-based approaches were applied on different pairs of languages including Japanese, French and English. These evaluations showed a real open improvement and a good quality of the extracted term candidates for building or enriching multilingual ontology, dictionaries or feeding a cross-language information retrieval system with the related expansion terms of the source query.