Miracle-dz/UniFAR-FTUs huggingface dataset:
Local scour by submerged offset jets

In this paper an effort is made to understand the scour caused by submerged offset jets impinging on a cohesionless sand bed. A square cross-section nozzle and a two-dimensional (2D) nozzle spanning the width of the flume were used to generate the jets. The 2D offset jet experiments were conducted at two values of the densimetric Froude number (F0 = 5·5 and 10) and two receiving water depths corresponding to shallow and deep tailwater conditions. The square offset jet tests were conducted at F0 = 10 and correspond to deep tailwater conditions. Velocity measurements were conducted using a laser Doppler anemometer. For both jet types, at a given densimetric Froude number, progressing from the start of the test towards asymptotic conditions, the geometric parameters used to describe scour were found to be sensitive to the offset distance. Offset refers to the vertical distance between the nozzle invert and the initial sand bed and an asymptotic state refers to the situation where no significant change in the.
Proximate Commuting: Hype or Potential? An Evaluation

Proximate commuting is a potential employer-based travel-demand management program under which large, decentralized employers reassign each voluntary participant to a job location (with the same employer) closer to the participant’s residence to reduce commuting distances. Key to determining proximate commuting’s feasibility and potential success are the identification and estimation of its commuting benefits. A model for quantifying the distance and time savings of proximate-commuting programs is presented. It relies on stated preference information regarding an employee’s willingness to proximatecommute. Potential commuting savings are modeled as originating from two distinct sources. First, savings can stem from mutually beneficial job exchanges that are estimated using optimization tools. Second, due to job vacancies occurring over time, savings can result from future employee relocations to closer branches. Because predicting future job vacancies is inherently stochastic, savings from future vacancies are estimated using optimization tools on scenarios created by a Monte Carlo simulation. The model is implemented and tested using data from selfadministered survey questionnaires distributed among all tellers of a single banking institution in Bogotá, Colombia. Results suggest immediate savings of 1,700 h/year and average savings of more than 8,000 h after the second year of program implementation. These results highlight the fact that accommodating people’s desires for shorter commutes at negligible cost is possible and suggest a cautiously optimistic outlook for proximate commuting. Future research should focus on proximatecommuting implementation issues, such as employer adoption, middle management’s role, and employee satisfaction after relocation.
Performance Evaluations of Unbound Aggregate Permanent Deformation Models for Various Aggregate Physical Properties

Permanent deformation or rutting is the main performance indicator of unbound aggregate layers used in flexible pavements. This paper evaluates the prediction abilities of unbound aggregate base or subbase permanent deformation models in use or proposed for use in the Mechanistic–Empirical Pavement Design Guide (MEPDG) approach. Repeated load triaxial-type permanent deformation tests were conducted on three unbound aggregate materials—limestone, dolomite, and uncrushed gravel—commonly used for pavement base and subbase and subgrade replacement applications in Illinois. The test matrix was designed to evaluate effects of aggregate physical properties, including moisture content, gradation, types and amounts of fines, aggregate mineralogy, and particle shape, texture, and angularity. The laboratory-measured permanent deformations were compared with those predicted by four rutting models evaluated in this study. The permanent deformations predicted by the original 1989 Tseng–Lytton model and the 2006 El-Badawy model were generally in good agreement with the measured values. The current MEPDG rutting model and its enhanced version proposed in 2013 by Hashem and Zapata tended to overpredict permanent deformations and have a low sensitivity to changes in aggregate physical properties. In addition to enhancements recommended for the four evaluated models, a unified rutting model was developed; it used a shear stress ratio concept and imaging-based aggregate morphological indexes. With a single set of calibrated model parameters, the unified rutting model produced reasonably accurate permanent strain predictions for all unbound aggregate materials used in this study.
Enhanced OCV prediction mechanism for a stand-alone PV-lithium ion renewable energy system

This paper aims to improve the estimation of state of charge (SoC) of the battery component for a small-scale photovoltaic stand-alone system through the use of a simple summing equation, at a set measurement interval. The system uses a predefined parameter to accurately predict the open-circuit voltage (OCV) of a cell at a much reduced measurement time of 5 minutes, while maintaining a maximum prediction error of less than 1%SoC. A simulation model has been provided that allows measurement of the cell voltage and current for prediction of the equilibrated OCV. The simulation can be used for single cell, modules and battery packs which use lithium-based technologies. Validation of the model has been performed using experimental data from tests conducted at the Centre for Automotive and Power System Engineering (CAPSE) laboratories, at the University of South Wales. An application has been proposed for this work, which includes a photovoltaic module for energy generation to power an illuminated advertizing sign. The energy is stored in a lithium-based battery model which uses a combination of a battery management system and remote monitoring for real-time data acquisition.
Low-Dose Insecticide Combinations for Colorado Potato Beetle Control

Colorado potato beetle (CPB) is the most notorious and problematic insect defoliator pest of potato. It is well known for its ability to develop resistance to chemical insecticides, so novel treatment methods must be developed. A possible solution is the application of newer groups of insecticides (biotechnical and biological insecticides) which are more selective and to which resistance has not yet been recorded. This work investigated the use of ecologically acceptable insecticide treatments: azadirachtin, spinosad and spinetoram, and their combinations against CPB larvae in laboratory and field conditions. Reduced dosing and combinational treatments were used to determine if effective protection against CPB could be achieved while also improving economic results. Our results from laboratory trials showed that combinations of low-dose azadirachtin (25%) and low-dose spinetoram (5%) are suitable for use in CPB integrated pest management. The results of the field trial showed that the use of 50% reduced dosage of spinosad and spinetoram resulted in high efficacy (89–99%) and can be recommended as a treatment method that provides effective control of CPB, improved economic results, and a positive environmental impact. Based on the advantages that these treatments offer compared to chemical insecticides, further work is recommended to determine if these combinational treatments used in other dosages or in combinations with some other ecologically acceptable insecticides can provide satisfactory control of CPB.
Optically-controlled ion-implanted GaAs MESFET characteristic with opaque gate

An analytical modelling has been carried out for an ion-implanted GaAs MESFET having a Schottky gate opaque to incident radiation. The radiation is absorbed in the device through the spacings of source, gate, and drain unlike the other model where gate is transparent/semitransparent. Continuity equations have been solved for the excess carriers generated in the neutral active region, the extended gate depletion region and the depletion region of active (n) and substrate (p) junction. The photovoltage across the channel and the p-layer junction and that across the Schottky junction due to generation in the arc region of the gate depletion layer are the two important controlling parameters. The I-V characteristics and the transconductance of the device have been evaluated and discussed.
Navigating network governance: the role of social enterprise in local employment services

ABSTRACT Neoliberalisation of welfare has stimulated growth of hybrid organizational forms – including social enterprises – that bridge welfare objectives and market models of service provision. However, the role of social enterprises in governance networks remains underexplored. Drawing on a comparative case analysis of four work integration social enterprises (WISEs) in Australia, this paper examines how WISE operate within local employment services systems and labour markets. We find WISEs both attract non-traditional resources and generate social value in new ways as an effect of their hybrid organizational arrangements. However, their effectiveness is constrained by lack of legitimacy within supralocal governance systems.
An ethnography of metaphor usage in IS projects : from description to domination

This study presents the story of a three-year ethnographical field study, from December 2000 to December 2003, conducted at a North West based Management Consultancy. Throughout this period the organisation experienced accelerated growth from two sites with a workforce of twenty, to six sites with a workforce of forty-five. There were two major IS implementation projects conducted in that period resulting in pervasive organisational change for this growing workforce. A controlling mechanism by the organisation's domineering Managing Director was the strategic 'planting' of two hegemonic metaphors, in the guise of 'Tigger' and 'Eeyore', two characters from the children's storybook Winnie the Pooh. This was done to pre-empt and avert resistance behaviour. An objective of this study was to explore this use of metaphors to coerce certain users into compliance with management aims in IS projects. Existing studies tend not to report upon management's explicit use of metaphor to control workforce behaviour in this manner. It could also be argued that this explicit use may have only been observed due to the rich insight of this longitudinal ethnographical study. Key features of the mechanism of metaphors 'working' in this case was the observation of a complex network of other underlying dominant metaphors in use in the organisation, enabling the submissive, unwavering, acceptance of the two hegemonic metaphors. A central contribution of this study is to highlight the power of mutually reinforcing metaphors when applied in a suitable context, so extending and reinforcing existing metaphor research within the IS field. XI
Bridging the Gap between Theory and Practice: An Analysis of Mzuzu University’s Bachelor of Education (Language) Programme

Language teacher education should provide student teachers with pedagogical content knowledge which is the knowledge that separates a teacher from a mere major of English. PCK means a student teacher will have knowledge of the content, the pedagogy as well as the context in which this will be used. This means the process of one acquiring PCK ensures that there is a link between theory and practice. This study therefore aimed at analysing the Bachelor of Education (Language) programme at Mzuzu University in order to understand how theory and practice are integrated. The data was generated through document analysis. The study has revealed that the programme has made an effort to integrate theory with practice through the kind of courses that are offered to the students. The English teaching methodology courses provide a platform in which the content is integrated into the practice. In addition, the theoretical knowledge gained in the lecture rooms is actualised through teaching practice.
Overmodulation strategy for high performance torque control

In the overmodulation region, the operation of the electrical drive system with a current controller is characterized by a rapid deterioration of the motor torque and speed. It is desirable to use the overmodulation strategy that extends the normal operating range even in the transient state. In this paper, in order to improve the dynamic characteristics of the electrical drive, a new overmodulation technique is proposed. Considering the current transition characteristic, an efficient overmodulation strategy is introduced to achieve better transient performance through adequate voltage selection. With the help of new overmodulation strategy, the required electrical torque can be directly produced as quickly as possible and stable machine drive characteristics can be achieved even in the transient condition. The proposed method has been implemented on an actual inverter system and thoroughly tested on a 900 W interior permanent magnet synchronous motor (IPMSM) to confirm its feasibility.
Issues and Perspectives Related to Mobile Brand Marketing in Thai Private Higher Education

Research on m-Branding in higher education appears to be in its infancy, as little empirical research has been conducted specifically targeting branding in higher education. University branding strategy, technology issues, and stakeholder branding issues are discussed which forms the model that underpins that qualitative inquiry of six private university managers involved in university marketing practices. The definition of m-Branding was adopted and fine-tuned in this paper to mean the delivery of electronic brand media, support materials and messages to mobile devices perceived as relevant to stakeholder/student segments. In this paper, the implications for branding developments through mobile technologies are discussed; and concludes with a discussion of the future of m-Branding reflecting a useful managerial tool that requires a more integrated approach in the Thai higher education system that results from a combination of technology, software, staff development and consequent student engagement.
Cellular and metabolic response of hemolymph from engorged Rhipicephalus microplus females exposed to fluazuron

The aim of the present study was to evaluate the hemolymph of engorged females of Rhipicephalus microplus ticks exposed to the growth regulator fluazuron. Firstly, the engorged females were divided into two groups (control and treated) and these were subjected to an immersion test. Hemolymph was collected 24 and 48 hours after the immersion test, to evaluate the cellular and metabolic response. In comparison with the control group, the treated group had lower total hemocyte counts at both times, with lower granulocyte counts and higher spherulocyte counts. There were reductions in glucose and total protein values in both the control and the treated group at the 48-hour evaluation, compared with the 24-hour evaluation. There were no changes in activity levels of lactate dehydrogenase and aspartate aminotransferase enzymes in either group at both times. Fluazuron was not able to promote changes in the energy metabolism of the ticks under the conditions established for this study, but this growth regulator proved to be capable of promoting changes in hemocyte dynamics.
A Comparative Study of Hematological Parameters of Endurance Runners at Guna Athletics Sport Club (3100 Meters above Sea Level) and Ethiopian Youth Sport Academy (2400 Meters above Sea Level), Ethiopia

Introduction Endurance running performance is dependent upon hematological, physiological, anthropometrical, diet, genetic, and training characteristics. Increased oxygen transport and efficiency of tissue in extracting oxygen are the major determinants to competitions that require endurance. Thus, altitude training is often employed to increase blood oxygen-carrying capacity to improve sea-level endurance performance. This study aimed to compare hematological parameters of endurance runners' training at different clubs with different altitudes (Guna Athletics Sport Club at Guna (3100 meter above sea level) and Ethiopian Youth Sport Academy at Addis Ababa (2400 meter above sea level)). Methods A comparative cross-sectional study was conducted at GASC and EYSA. Data were collected from a total of 102 eligible study subjects (26 runners and 25 controls at Guna and 26 runners and 25 controls at Addis Ababa) from May to October 2019. About 3 ml of the venous blood was drawn from the antecubital vein by aseptic procedure and analyzed using a hematology analyzer (DIRUI BCC-3000B, China). One-way ANOVA and independent-sample t-tests were used to compare means. Result Male runners in Guna had significantly higher hemoglobin (Hgb), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), and white blood cell (WBC) count than male runners in Addis Ababa. Besides, female runners in Guna had significantly higher MCH and MCHC than female runners in Addis Ababa. However, there were no significant differences between Guna and Addis Ababa runners in red blood cell (RBC) count, Hct, MCV, and platelet count in both sexes, while Hgb and WBC count in females. Conclusion Decisively, Guna Athletics Sport Club endurance runners had significantly higher hematological parameters than Ethiopian Youth Sport Academy endurance runners. This provides invaluable information for coaches and sport physicians to monitor the hematological profile and the health status of an athlete living and training at different altitudes.
Establishment of a Road Classification System and Geometric Design and Maintenance Standards for Low-Volume Roads

The primary purpose of a road hierarchy is to ensure that appropriate management, engineering standards, and maintenance practices are applied to a road on the basis of its function. A hierarchy also enables more efficient use of limited resources by allocating funds to those roads that are in greater need and for which the costs are better justified. Studies were recently completed to arrive at a classification system for a wide range of low-volume roads covering rural municipalities and forestry organizations. Results are presented of an extensive literature search and the process and methodology developed to arrive at acceptable standards for various stakeholders relative to a classification system and geometric design and maintenance standards for low-volume roads. Five road classifications are derived for low-volume roads, including functional and road characteristics, to assist in classifying each road in a network. Also included for each road class are guidelines for geometric standards that relate to design speed, cross-sectional elements, and horizontal and vertical curve requirements for flat, hilly, and mountainous terrain. These standards were derived with reference to existing standards, engineering experience, and resources available to a road agency. Each classification has a set of maintenance criteria for both sealed and unsealed roads, covering the key defect types and intervention levels for routine and urgent maintenance.
ANALYSIS OF PHOTOVOLTAIC SYSTEMS TO ACHIEVE MAXIMUM POWER POINT TRACKING WITH VARIABLE INDUCTOR

Photovoltaic (PV) system is the most promising source of energy and a new concept in use, which is obtaining popularity due to increasing importance to research for alternative sources of energy over exhaustion of customary fossil fuels worldwide. This systems are developed to draw energy from the sun, in the most competent manner. In this project Buck converter based PV system with resistive load is considered. The converter topology uses a variable inductor which provides adequate harmonic reduction. Employing the theorem that matching impedance yields maximum power transfer, a number of algorithms have been developed for Maximum Power Point Tracking (MPPT). In this paper Incremental Conductance with integral regulator MPPT algorithm has been used. The proposed system is simulated using Matlab/Simulink environment.
THE DETERIORATION OF CONCRETE IN STRUCTURES.

Chloride ingress is a common cause of deterioration of reinforced concrete bridges. Concrete may be exposed to chloride by seawater or de-icing salts. The chloride initiates corrosion of the reinforcement, which through expansion disrupts the concrete. In addition, the corrosion reduces the cross-section of the reinforcement and thereby influences the reliability of the structure. stochastic by many ,7. paper use the results obtained by J 1 and al. 2 to make an improved stochastic modelling of the corrosion initiation time. emphasised in the paper that the diffusion coefficient D is not a real physical constant for a given concrete. It is strongly dependent on the water-cement ratio w/c, on the and on the additives used.
The Traveling Salesman Problem with Imperfect Information with Application in Disaster Relief Tour Planning

Many in the disaster response community have begun to explore ways to use information posted on social media platforms to identify a larger set of needs in a shorter amount of time following a disaster. However, needs communicated through social media platforms have initially not been verified so many within the emergency response community remain skeptical over the usefulness of such information. Consequently, as emergency managers consider whether to incorporate social media data in disaster planning efforts, a key tradeoff must be assessed. Confidence in the accuracy of needs to which resources are allocated is increased when information discovered on social media is ignored, but there is potential to leave populations that have not yet been discovered through traditional means unassisted. This paper introduces a new problem framework that describes a formal method for quantitatively assessing the impact of including unverified information in disaster relief planning. The usefulness of the framework is demonstrated in the context of the traveling salesman problem. A decision approach that considers social media information is compared to one that does not on the basis of total response time of resulting tours. A case study that considers variations in report accuracy and quantity for uniformly distributed demand instances is presented.
Influence of the frequency on the partial discharge inception voltage

A report about the behaviour of inhomogeneous air gaps stressed by high frequency voltages was published by Kampschulte and Lassen in 1930. The measurements had been performed within a frequency range of 50 Hz up to 100 kHz. It was the aim of that investigation to find out dimensioning criteria for the design of high power rf-transmitters. These investigations have already shown that the breakdown voltage of inhomogeneous gaps decreases significantly with the increase of the frequency. The values of the breakdown voltages even for those comparatively low frequencies may be only 50% of the 50 Hz breakdown voltages. Due to the continuous reduction of size of electrical equipment the field strength and therefore the electrical stress of installation has greatly increased. The probability of the occurence of PD is also increasing. Today high frequency voltage stress often occurs at printed circuit boards (PCB) due to the increasing use of converter circuits with high switching frequencies. This paper deals with the influence of the frequency on the PD inception voltage (U/sub i/) and PD-intensity on PCBs for a frequency range up to 400 kHz. The investigations are performed for normal climatic conditions. Additionally point-plane air gaps are investigated to evaluate the influence of the frequency on the PD-characteristics for very inhomogeneous fields.