Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of Results of SHRP and Conventional Binder Tests on Paving Asphalts

This study was conducted to compare the results of SHRP and conventional binder tests on paving asphalts. The test results indicate that Brookfield viscosity shows a fairly strong cor- relation with G*/sinδ at high service temperature. Penetration shows a strong correlation with G*×sinδ at 25℃, and Fraass breaking point shows a moderate relationship with SHRP limiting stiffness temperature. The relationship between the creep stiffness and the failure strain at -12, -18 and -24℃ is very good (R 2 =0.81) as compared with the others. Creep stiffness decreases as failure strain increases. The Bitumen Test Data Chart (BTDC) basically allows one to take different physical property measurements (viscosity, penetration, Fraass temperature, and/or softening point) and predict the consistency of the material over a wide temperature range. Family curves of the BTDC could be used to compare the characteristics of a binder as it ages. A PG grade binder with a wide temperature range will display a low-temperature susceptibility in the BTDC.
Behavior analysis of high strength concrete containing macro-polymeric fibers based on workability and mechanical properties

The main purpose of fiber reinforcement in concrete is to increase the post-cracking resistance of the composite, which reflects on toughness gain, being steel fibers traditionally used for this purpose. In recent years, an alternative to the steel fibers has emerged in the market for concrete reinforcement: the macro-polymeric fiber. However, there is few research on its performance as a reinforcement element in concrete, particularly when it is a high strength concrete. Given this, the behavior of high strength concrete, without fiber and with macro-polymeric fiber, both in fresh and hardened state, is analyzed in this paper. The workability was evaluated by the slump test and the mechanical properties were evaluated by the tests of compressive strength, Barcelona, flexure of prisms and punching of plates. It was found that, depending on the property to be analyzed, the increase of the macro-polymeric fiber content may be unfeasible. In the flexural test in prisms, for example, most parameters evaluated showed no significant changes when increasing the fiber content. In addition, it was observed that the same concrete mixture may present different behavior depending on the test performed.
Statistical Guidelines for Curve Number Generation

The accuracy of runoff curve numbers (CNs) is unknown, and empirical evidence has suggested that with the current CN table, hydrological systems are being over designed—which some believe is due to a variable known as the initial abstraction coefficient (λ) . Therefore, guidelines to produce a new CN table are needed. In order to develop this set of guidelines, the following objectives were met: Determination of CN and λ sensitivity, assessment of the accuracy of alternative methods for determining CNs, examination of the effect of the range of data, and evaluation of the potential change in hydrologic design due to a new table. Using measured and simulated data, the methods of estimating the CN were evaluated and assessed for accuracy. A new method using concepts of lognormal frequency was developed and found to be more accurate than the current practices. It was also found that λ is an insensitive variable when compared to the CN, and therefore, may complicate the optimal fitting of the CNs. Finally, it.
A novel pulse-density-modulated high-frequency inverter for silent-discharge-type ozonizer

This paper presents a novel prototype of a voltage-source load resonant inverter using insulated gate bipolar transistors for driving a silent-discharge-type ozone-generation tube. Ozone-generation technology has a history of more than 100 years and ozonization has been recognized as one of the best methods for water treatment, desinfection, industrial wastes utilization, and so on. However, some technological difficulties related to efficient ozone production and high cost of the ozone-generating equipment have been significant problems restricting ozone usage in the industrial plants. Introduced in this paper is a pulse-density-modulated high-frequency inverter for a silent-discharge-type ozonizer, which is developed with the aim to improve power conversion and control characteristics of the ozone generation by using advances in power electronic technology. The developed system implements the feedforward control-based pulse-density-modulation control scheme with pulsewidth-modulation feedback control strategy to compensate temperature and other environmental influences on ozone gas output.
Analysis of Earnings Management Practices Using the Modified Jones Model on the Industry Company Index Kompas 100

This study aimed to examine the issue of differences in earnings management patterns in companies listed on the Indonesia Stock Exchange (IDX). Earnings management can occur because company management wants to take advantage of accounting descriptions/policies under the character of the assets, existing in each of these industries. This study used a Modified Jones Model approach in determining earnings management proxies. Besides, it also used analysis of variance (ANOVA) to test whether there were differences in earnings management patterns. The data were consisted of 450 companies from 8 industrial sectors in the Kompas 100 Stock Index during 2015-2019. They were from various industries; essential and chemical industry; consumer goods; services; mining, oil, natural gas; plantation; property and real estate; and banking. The result shows that there are differences in earnings management patterns between industrial sectors. Therefore, company management practices earnings management following the characteristics of each industry. The research also suggests that the next study should analyze the comparison of earnings management with other models to determine the consistency of results.
Crystal Collimation of 20 MJ Heavy-Ion Beams at the HL-LHC

The concept of crystal collimation at the Large Hadron Collider (LHC) relies on the use of bent crystals that can deflect halo particles by a much larger angle than the standard multi-stage collimation system. Following an extensive campaign of studies and performance validations, a number of crystal collimation tests with Pb ion beams were performed in 2018 at energies up to 6.37Z TeV. This paper describes the procedure and outcomes of these tests, the most important of which being the demonstration of the capability of crystal collimation to improve the cleaning efficiency of the machine. These results led to the inclusion of crystal collimation into the LHC baseline for operation with ion beams in Run 3 as well as for the HL-LHC era. A first set of operational settings was defined.
Characteristics of Pitching and Plunging Airfoils Under Dynamic-Stall Conditions

An experimental investigation into the dynamic-stall process of a pitching and plunging airfoil at low Reynolds numbers has been carried out using direct force measurements and smoke visualization in an Eiffel-type wind tunnel. The strong influence of reduced frequency (k = �fc/U∞) on the vortical wake of both pure-plunging and pure-pitching airfoils is revealed. Here a transition from a bluff-body to a mushroom-type wake has been observed at approximately k = 0.2. Some associated lift and moment hysteresis curves for combined pitching and plunging kinematics are then presented with an accompanying discussion on the nature of the dynamic-stall process. For these complex kinematics it is observed that both lift and moment phase lags grow with reduced frequency from k = 0.05 to k = 0.1. Despite substantial lift augmentation in the light- and deep-stall regimes, strong pitching-down moments are not avoided.
Research and Development of Inventory Management and Human Resource Management in ERP

Nowadays, more and more companies are applying total inventory management as well as human resource management as one of the core concepts of the enterprise management platform. ERP is a resource allocation platform based on information technology applications to have the advantage of advanced and comprehensive management ideas to provide planning and operation software for enterprise managers and employees. This paper describes in detail the ERP system, as well as its planning and control ideas, its ideas, and the idea of internal control of enterprises in line with the rapid development of the information economy and knowledge economy in today’s situation; ERP systems also have some inefficiencies and other situations; in response to this situation, this paper also analyzes the ERP system by analyzing the application of ERP systems in enterprises, from the market function information system and ERP system in the application to inventory management as well as to human resource management for decision-making, exploring its deficiencies in the inventory management system and human resource system and then proposing corresponding improvement methods and corresponding development measures. Enterprises can use the improved advanced information technology to enhance the unity and sharing of data and fine management and improve operational efficiency, and enterprises can achieve standardized and process-oriented management of daily operations by using the improved ERP to control various business processes such as production, procurement, and sales and realize the collaborative processing of financial and business processes.
Vehicle trajectory reconstruction using automatic vehicle identification and traffic count data

The origin-destination (OD) matrix and the vehicle trajectory data are critical to transportation planning, design, and operation management. On the basis of the deployment of automatic vehicle identification (AVI) technology in urban traffic networks in China, this study proposed a vehicle trajectory reconstruction method for a large-scale network by using AVI and traditional detector data. Particle filter theory was employed as the framework for this method that combines five spatial-temporal trajectory correction factors (i.e., the path consistency, the AVI measurability criterion, the travel time consistency, the gravity flow model, and the path-link flow matching model) to estimate the trajectory of a vehicle. The probabilities of the most likely trajectories are updated by the Bayesian method to approximate the 'true' trajectory. The traffic network in the Beijing Olympic Park was selected as the test bed and was simulated by using VISSIM to create a complete set of vehicle trajectories. The accuracy of the resulting trajectory reconstruction exceeds 90% when the AVI coverage is only 50%, assuming an AVI detection error of 5% for a closed network and an open network. The average relative error of a static OD matrix is 11.05%. Although the accuracy of reconstruction exceeds 80% when the AVI coverage is between 50% and 40%, the accuracy of a defective product-OD matrix decreases rapidly. The proposed method yields high estimation accuracy for the full trajectories of individual vehicles and the OD matrix, which demonstrates significant potential for traffic-related applications. Copyright © 2014 John Wiley & Sons, Ltd. Language: en
Reduced simulation models of wafer fabrication facilities

Detailed simulation models of large wafer fabrication facilities can require substantial amounts of computer execution time. Practitioners and researchers have frequently embraced the notion that, if detail must be sacrificed, it is wise to reduce detail for the low-utilization workstations. However, a specific prescription for how to reduce the detail and empirical evidence of the validity of the approximation has been lacking. In this paper we show that accurate estimates of total cycle time and equipment utilization may be obtained using reduced fabrication simulation models that replace operations at low-utilization workstations with fixed time lags. We demonstrate the accuracy of the approximation on industrial data. The criterion we use for deleting workstations from the model is the standard deviation of lot waiting time. The computer execution time for such reduced models is five to ten times less than that for complete models of the fabrication.
Single-resistance-controlled sinusoidal oscillator using current-feedback amplifiers

A new single-resistance-controlled/voltage-controlled sinusoidal oscillator using two current-feedback amplifiers (CFAs) is presented. One of the significant features of this oscillator is that its oscillation frequency can be controlled by the ratio of two resistors. Moreover, this oscillator provides the following advantages: (i) controllable oscillation frequency by a grounded resistor; (ii) easily converted into a voltage-controlled oscillator; (iii) suitable for very low-frequency oscillation; (iv) use of the grounded capacitors which are suitable for IC implementation; (v) low passive sensitivities; (vi) buffered output. Experimental results that confirm the theoretical analysis are obtained.
TOWARDS THE STANDARDIZATION OF A TESTING METHOD FOR THE END-STOP IMPACTS OF SUSPENSION SEATS

Standard tests of the vibration isolation efficiency of suspension seats currently use narrow-band input spectra representing the motions of specific vehicles. The motions used in these tests have near-Gaussian amplitude distributions, whereas vehicle motions include occasional extreme movements causing end-stop impacts of the seat suspension which increase the exposure of the seat occupant to vibration and shock. Tests have been conducted with various vibration magnitudes so as to quantify suspension seat isolation efficiency in terms of the ratios of the vibration dose values (VDVs) at the base of the seat, above the seat suspension and above the seat cushion. It is shown that the vibration response of a seat suspension occurs in five stages according to the magnitude of the input vibration, and that the cushion of a suspension seat may reduce the severity of severe end-stop impacts. The dynamic performance of a suspension seat when supporting a human subject and when supporting a sand bag is compared and the effect of mid-position adjustment is demonstrated. The form of an end-stop impact test which could supplement existing tests so as to evaluate the overall performance of suspension seats is discussed.
Investigations into dioxin emissions at Italian iron ore sintering plant

The paper presents the results of tests performed on an existing iron ore sintering plant to evaluate the limiting capability of dioxins releases to air and of measures and technologies adopted. These measures and technologies are in line with the best available techniques as stated in the Integrated Pollution Prevention and Control Directive 96/61/EC, so a measurement campaign was planned to determine the operating conditions capable of complying with the legislation in force. In this paper, the authors define the running conditions tested and the manner in which the testing campaign was performed. The results are presented and analysed in the light of the aims of the study.
Decadal Amplitude Modulations of the Stratospheric Quasi-biennial Oscillation

Decadal variations of the quasi-biennial oscillation (QBO) in the equatorial stratosphere are investigated, using the Singapore data and reanalysis data from the 1950s to 2019/2020. It is found that the QBO is decadally modulated in the amplitude as well as in the period. These two decadal variations are negatively correlated with each other after the 1980s, while they show approximately positive correlations before the 1980s. In the time series of the QBO amplitude from the 1950s to 2014, there are four maxima (QBO max ) around 1967, 1983, 1995, and 2005, and three minima (QBO min ) around 1973, 1988, and 2000. Composite analyses of QBO max and QBO min based on these extrema reveal that the decadal amplitude variations have a maximum amplitude of about 3 m s −1 at 20 hPa in the vertical structure. In the horizontal structure, off-equator extrema of about 3.5 m s −1 appear around 5°N at 20 hPa, while extrema of about 1.8 m s −1 are situated around 5°S at 50 hPa. The decadal amplitude variations of the QBO are closely and positively correlated with the decadal components of Niño 3.4 sea surface temperature anomalies (SSTa) and the Pacific Decadal Oscillation index, suggesting that the tropical SSTa in the Central Pacific substantially influences the QBO in the decadal timescales.
Vowel harmonic amplitude differences in individuals with unilateral vocal fold paralysis

Background: The studies reviewed suggest the potential clinical applications of vowel harmonic amplitude differences. In this study, it was hypothesized that there would be abnormal reduction of higher harmonic amplitudes relative to the amplitude of the first harmonics in individuals with unilateral vocal fold paralysis (UVFP) as they are characterized by breathy voice due to inadequate closure of vocal folds. Method: A total of 80 participants were divided into clinical group and control group. They were instructed to phonate/a/at their most comfortable pitch and loudness. Fourier transformation of the recorded acoustic signal was first performed to create a spectrum. Amplitudes were measured for the first and second harmonics as well as the harmonics at the first, second, and third formants using the Computerized Speech Science Lab. Results: Independent t-test was employed to compare the significant differences between the clinical and the control group in both males and females. The results revealed significant differences across the two groups and gender at P < 0.05. The obtained results were discussed with respect to the underlying pathophysiology. Conclusion: Spectral deviations in the clinical group are explained due to the presence of phonatory gap due to the UVFP.
Tests of multivariate copula exchangeability based on Lévy measures

This paper introduces tests for the symmetry of the copula of random vector. The proposed statistics are based on the copula characteristic function and the weight function that appears naturally in their definition are assumed to belong to the general family of Lévy measures. The proposed test statistics are rank‐based and expresses as weighted L2 ‐norms computed from a vector of empirical copula characteristic functions. Their nondegenerate asymptotic distributions under the null hypothesis and general alternatives, as well as the validity of a multiplier bootstrap for the computation of p‐values, are derived using nonstandard arguments. Extended Monte–Carlo experiments show that the new tests hold their size well and are powerful against a wide range of alternatives, and appear to be more powerful than a Cramér–von Mises test based on empirical copulas.
Modeling students' mathematics achievement and performance through teaching quality: SERVQUAL perspective

PurposeThis study explored the effect of mathematics teaching quality on mathematics achievement among undergraduate students, using the SERVQUAL model.Design/methodology/approachThe sample comprised of 320 first-year undergraduate students of a public university in Ghana. Structural equation modeling (SEM) was run in Amos (v.23) to test the various hypotheses.FindingsThe study concluded that the tangible aspect of the SERVQUAL model (service quality), which is very instrument in some service industries such as the airline, had no significant effect on mathematics achievement. Mathematics teaching reliability, responsiveness, assurance and empathy, however, had significant positive effects on mathematics achievement among undergraduate students.Research limitations/implicationsThe study assessed the effects of the individual dimensions of SERVQUAL on mathematics achievement, and it was realized that the tangible dimension had no significant effect. Tangibles may however compliment the other dimensions and is therefore imperative to also assess the effect of service quality (as a higher/second order variable) with the five dimensions as its first-order variables.Practical implicationsHuman resources (lecturers) were seen as a strategic tool in enhancing students' academic performance and mathematics performance to be specific. Management of universities is therefore expected to invest in building, training and developing their human resources for an enhanced academic performance of students, especially in mathematics.Originality/valueAlthough some past studies have applied SERVQUAL to teaching and learning researches, attention was largely focused on the measurement or assessment of teaching quality using SERVQUAL, with little attention on the effect of SERVQUAL on an outcome variable.
Prevalence and Patterns of Risk of Osteoporosis in Bangladeshi Adult Population: An Analysis of Calcaneus Quantitative Ultrasound Measurements

(1) Objectives: A little is known about the prevalence of the “risk of osteoporosis (RO)” and the factors associated with RO among Bangladeshi adults. Using a cost-effective testing tool, this study aimed to investigate the prevalence of RO and find the association between age, gender, and morbidity with RO among adults in Bangladesh. (2) Results: Among 526 subjects, the prevalence of RO was 37.3%. Gender (p =< 0.001), age (p = 0.003), diabetes (p = 0.003), cardiovascular disease (p =< 0.001) and multimorbidity (p =< 0.001) were associated with RO. The causal relationships, by adjusting confounders in the associations of RO and other variables, were depicted graphically. (3) Conclusion: The pattern of association between gender and age with RO was different and exclusive. Different approaches might be needed to alleviate the high burden of RO considering the subjects’ age, gender, and multimorbidity.
How parental factors influence children’s literacy development: Inequity in education

ABSTRACT Previous studies have focused on how parental factors affect children’s learning development. This study aims to review previous findings and explain the relationship between child literacy development and parenting in terms of two environmental factors: family socioeconomic status (SES) and parents’ involvement based on positive role beliefs, especially when they have children in the early childhood and elementary years. Previous studies have found that children from lower SES families experience considerable disadvantages in their literacy development. However, other scholars argue that parental involvement based on positive role beliefs can meaningfully contribute to children’s improved literacy outcomes. Also, multiple studies point out that parents’ positive role beliefs can offset the disadvantages in children’s literacy development caused by low SES. By comparing the findings of previous studies, this article provides a foundation for future research on familial issues in child education.
THE COMMUNITY-BASED TOURISM AT THE TOURIST VILLAGE IN THE LOCAL PEOPLE’S PERSPECTIVE

This study aims to analyze the implementation of community-based tourism (CBT) at the tourist village in the local people’s perspective. The data were collected through observation, interview and library research. The key informant was local community who understands implementation of CBT at tourist village, with total 200 respondents. The result shows that the CBT has been well implemented at tourist village. The community perceives that, among the 20 statements mentioned in questionnaire, 2 items show that the local people’s perception is very good and 18 is good, meaning that CBT have economically, socially, culturally, environmentally, and politically contributed to them. The test result of the CFA shows that 5 factors have significantly contributed to the implementation of the CBT at tourist village. The result of each variable shows that 19 variables have contributed significantly, only one has not significantly contributed.