Miracle-dz/UniFAR-FTUs huggingface dataset:
NUMERICAL EVALUATION OF GALERKIN FINITE VOLUME SOLVER FOR LAMINAR/TURBULENT FLOW OVER FLAT PLATE

In this paper, attempt is made to use combination of numerical techniques to simulate fluid flow over smooth and unsmoothed flat plate. The incompressible Navier-Stokes equations with LES turbulence model were numerically solved to estimated velocity profile over flat plate. For this purpose, the incompressible form of the mass and momentum conservation equations are solved in a coupled manner using artificial compressibility method. In order to capture turbulent velocity profile near to the wall, proper boundary condition based on logarithmic velocity profile was imposed. The Galerkin finite volume algorithm for triangular meshes was used for converting the governing equations into discrete formulation. Several techniques such as local time steeping, residual smoothing and unstructured multigrid mesh were used to increase convergence acceleration. Time integration was done by the third order Runge-Kutta scheme to increase computational efficiency when the hyperbolic equation was used. The quality of the solution results for the laminar flow over flat plate at low Reynolds number are assessed by comparison of computed results with Blasius analytical solution. Then, a set of readily available experimental measurements are used for verification of numerical solution results for turbulent flow over a flat plate. Comparison of the analytical and experimental results proves accuracy of the presented method.
Repetition rate tuning of soliton in microrod resonators

The coherent temporal soliton in optical microresonators has attracted great attention recently. Here, we demonstrate the dissipative Kerr soliton generation in a microrod resonator, by utilizing an auxiliary-laser-assisted thermal response control. By external stress tuning, the repetition rate of the soliton has been controlled over a large range of 30 MHz. Our platform promises precise tuning and locking of the repetition frequency of coherent mode-locked comb in the microresonator, and holds great potential for applications in spectroscopy and precision measurements.
Self-Inflicted Supply Risk: An Empirical Investigation

This study seeks to better understand how internal firm decisions and the design of procurement processes affect supply risks and supply lead times. An in-depth field study was conducted through an interview process with experienced professional buyers from an integrated procurement, logistics, and materials management organization of approximately 300 staff members who manage $350 million annually in procurement spending. This organization serves a large manufacturing complex with seven manufacturing centers. Empirical lead-time data on approximately 58,000 procurement transactions completed in a six-month period were collected and analyzed. Results of the field study interviews and mixed effects multi-level analysis of procurement data found that supply decisions made by the plant operations staff before the procurement requests ever reach the buyer organization are a major driver of supply risks and extended lead-times. In addition, the most significant supply risks may not be related to the direct production inputs, but to the procurement of infrequently purchased direct and indirect material supplies needed to maintain factory reliability.
Thermal annealing effect on the band gap and dielectric functions of silicon nanocrystals embedded in SiO2 matrix

The thermal annealing effect on band gap and dielectric functions of silicon nanocrystals (nc-Si) embedded in a SiO2 matrix synthesized by Si ion implantation is investigated by spectroscopic ellipsometry. A large band-gap expansion of nc-Si relative to bulk crystalline silicon has been observed. The band gap of the nc-Si for the nonannealing condition (i.e., as implanted) is 1.78eV while it is 1.72eV for the annealing at 1000°C for 100min. The slight decrease in the band gap is attributed to the slight increase in the nc-Si size with annealing. The dielectric functions of nc-Si show a significant suppression, as compared to bulk crystalline silicon, due to the quantum size effect. Annealing results in a small change in the static dielectric constant, which can be explained in terms of the size effect also.
MAGNET BLOCK SORTING FOR VARIABLY POLARISING UNDULATORS

Effective sorting of permanent magnet blocks for undulators can reduce the adverse effects of magnetic inhomogeneities and engineering tolerances on the electron beam. For variably polarising undulators (VPUs) the numbers of different modes of operation make defining the objective function of a particular permutation more difficult than for a planar device. Factors required in defining a good objective function for a new APPLE-II type helical undulator for the SRS are discussed. These factors include calculating the magnetic field integrals, the particle trajectory and rms optical phase error. The effects of different weighting of these functions in the objective function are also discussed. A comparison of different optimisation techniques, including simulated annealing and Monte Carlo methods is also made.
Efficacy of Bacterial Seed Treatments for Controlling Pythium Root Rot of Winter Wheat.

Pythium root rot, caused by various Pythium spp. , is a widespread disease of wheat. The objective of this study was to identify bacterial strains from wheat roots in Arkansas that suppressed Pythium root rot and to compare their efficacy with that of bacterial strains from other areas. Bacterial strains (applied as seed treatments) that suppressed Pythium root rot in growth chamber assays were evaluated further for in vitro antibiosis against three Pythium spp. and for efficacy under field conditions. Pseudomonas fluorescens strain 2-79R, Burkholderia cepacia strain 1-23, and Pseudomonas sp. strain 1-30 were the most effective for suppressing Pythium root rot under field conditions and significantly (P = 0.10) increased yield in one experiment. Strains that were effective in the field also expressed in vitro antibiosis to at least two of three Pythium spp. ; however, strains expressing the highest levels of antibiosis were not effective in the field. In the field, root rot suppression and yield enhancement were inconsistent across experiments and generally small in magnitude. Therefore, these strains have little potential for commercial use under the conditions in which they were tested.
TRIAL STABILISATION OF RUNNING BIOMECHANICS WITH SHOE FAMILIARISATION IN TRAINED DISTANCE RUNNERS

Appropriate trial sizes for biomechanical studies examining running shoe functionality are important to ensure valid insights into injury prevention strategies. The study aimed to examine the influence of shoe familiarisation on trial stabilisation in trained distance runners. A sequential averaging analysis was used to define trial stabilisation of biomechanical measures obtained from two testing conditions (new shoe and familiarised shoe). Between condition group analyses suggested similar trial stabilisation irrespective of shoe familiarisation (group mean ±SD: new: 7.5 ±2.0 trials; familiarised: 7.0 ±2.0 trials). Within group analyses identified variations in trial stabilisation according to the participant, condition and measure. An eight trial protocol was advocated for participantcondition analyses in longitudinal studies examining shoe functionality.
The Effects of Marine Cloud Brightening on Seasonal Polar Temperatures and the Meridional Heat Flux

Marine cloud brightening (MCB) is one of several proposed solar radiation management (SRM) geoengineering schemes designed to ameliorate some of the undesirable effects of climate change, for example polar ice loss and associated increased sea levels. Satellite measurements over the last 40 years show a general reduction in polar sea ice area and thickness which is attributed to climate change. In our studies, HadGEM1, a fully coupled climate model, is used to predict changes in surface temperatures and ice cover as a result of implementing MCB in a double carbon dioxide concentration atmosphere. The meridional heat flux (MHF) is the mechanism within the earth system for the transport of energy from tropical to polar regions. This poleward transport of heat in a double carbon dioxide atmosphere amplifies the effects in polar regions, where it has a significant impact on both temperatures and ice cover. The results from this work show that MCB is capable of roughly restoring control temperatures and ice cover (where control is defined as 440 ppm carbon dioxide, a predicted 2020 level) in a double carbon dioxide atmosphere scenario. This work presents the first results on the impact of MCB on the MHF and the ability of the MCB scheme to restore the MHF to a control level.
THEORETICAL FRAMEWORK 2 . 1 HR Architecture of the Firm 2 . 1 . 1 Human Capital Value and Uniqueness Serve as Basis for Employee Categorisation

Purpose: The aim of this Delphi study is to assess the impact the employment mode has on employee expectations regarding the future number of task, career, flexibility and financial incentive i-deals in order to shed light on the future of employee involvement in HRM. Research Method: After developing hypotheses through a review of extant literature, employees were invited as experts and asked to assess their own human capital and give their expectations regarding the future number of ideals they expect. For this, the Delphi method, a consensus-based, multi-round forecasting technique was used. Findings: The quantitative data and subsequent statistical analysis shows no significant differences between the individual employment modes regarding leverage from human capital or likelihood for task, career, flexibility or financial i-deals to occur. From the qualitative expectations of the experts, the pattern emerged that some expect to receive i-deals in the future, but standardised practices, structural limitations and proactive HR policies often keep i-deals from occurring for a broader mass. Implications: The experts’ remarks made apparent that they consider leverage gained from human capital as an important factor during the individual negotiation. I-deals can interact with, for example job crafting or themselves, since they can further develop human capital in the long run and therefore provide employees with more bargaining power. Supervisors: dr. J.G. Meijerink
Assessment of Oil-Eating Fungi Isolated from Spent Engine Oil Polluted Soil Environments.

Fungi capable of engine oil degradation were isolated from mechanic workshops and their degrading ability assessed both as pure and mixed cultures at different temperatures. Soil samples collected from waste engine oil contaminated and non-contaminated reference points were analyzed physic-chemically and microbiologically. Of the pure culture isolates, Penicillium chrysogenum was the best engine oil degrader consuming 43.33% engine oil within 30 days. However, mixed culture fungi degraded more engine oil (50.02%) within the same number of days.
Detection of Tomato Ringspot Virus on Stone Fruit Trees in Jordan

Field surveys were conducted to asses the incidence of Tomato ringspot virus (ToRSV , genus Nepovirus, Family Comoviridae) infection in stone fruit trees in Jordan during 2000-2002. A total of 2546 samples, collected from commercial orchards, a mother block, nurseries and a varietal collection were tested for ToRSV infection by DAS-ELISA. Results showed that 16% of the tested samples were infected with the virus. The disease incidence percentages in apricot, almond, peach, nectarine, plum and cherry trees were 10, 14, 15, 19, 22 and 28% of the tested trees, respectively. The level of viral infection was highest in the commercial orchards (20%) and lowest in samples obtained from nurseries (5%).
The use of word data to measure perception in hybrid choice models

This research aims at developing a hybrid choice model (HCM) where a perceptional variable is measured by means of adjectives reported by individuals. Due to the qualitative nature of adjectives, the main challenges of the study involve their quantification and their integration into HCMs. In order to address these issues, we first obtain measures of the strength of the adjectives on the scale of the perceptional variable by using ratings from external evaluators. Second, an advanced measurement model of the perceptional variable is specified, in order to account for variations occurring in the answers from the evaluators.
THE EFFECT OF DISTANCES BETWEEN VEHICLES ON TIME AND SPEED IN SIMULATED TRAFFIC

wadzenie zale¿noœci prêdkoœci pojazdów od gêstoœci ruchu w warunkach ruchu miejskiego. Wykazano, ¿e funkcja prêdkoœci ma postaæ hiperboliczn1 zale¿n1 od gêstoœci ruchu, œredniej d3ugoœci pojazdów oraz od wartoœci oczekiwanej E(T) odleg3oœci miêdzy pojazdami wyra¿onej w jednostkach czasu. W oparciu o wyznaczon1 zale¿noœæ przeprowadzono szereg symulacji komputerowych w celu zbadania wp3ywu wartoœci E(T) na parametry symulowanego ruchu samochodowego. W przeprowadzonych symulacjach badano œredni1 prêdkoœæ oraz œredni czas przejazdu trasy od punktu startowego do punktu docelowego. Wykazano, ¿e zmiana parametru E(T) w zakresie od 1 s do 4 s skutkuje zmian1 œredniego czasu przejazdu o od 6,6 do 35,6% oraz œredniej prêdkoœci przejazdu o od 3,0% do 18,0% w zale¿noœci od liczby pojazdów w symulacji.
A Time-Domain Twice Expansion Method for Wave Interaction with a Body of Large Amplitude Motion

Deep water structures are usually positioned in sea by mooring lines, which perform strong nonlinearity. The structure system usually has a very low natural frequency, and can be inspired lager reciprocating drift motion by nonlinear wave force at low frequency. To deal with the problem due to mooring nonlinearity, Sarkar and Eatock Taylor (1998, 2001) proposed a two-scale perturbation method to investigate the interactions of nonlinear mooring stiffness and wave hydrodynamics, and established a frequency domain perturbation method for this problem. The nonlinear problem is more widely studied in the time domain, and coupling analysis must be carried out for wave interaction with floater and mooring system. As the total time domain coupling analysis is complex and tremendous, hydrodynamic load is often computed by a perturbation expansion method (as Yang et al (2012)), or by Cummins method based on the frequency domain perturbation expansion (as Kim et al (2013)). Perturbation method is powerful when body motion is not very large. However, in deep water the floater may oscillate with an amplitude larger than wave lengths. At this condition, the traditional perturbation expansion is obviously not correct. The most obvious disadvantages of the present perturbation method are that the phase change of the wave load due to body motion and the change of the encountering frequency of incident waves are unable to be considered. To solve those problems, a time domain twice expansion method is proposed in this study. The displacement of floater motion is divided into two part: one is a large amplitude motion with low frequency, and the other is an oscillation about the low frequency motion at higher frequency. The large amplitude motion at low frequency is obtained by numerical filtering of body response with progress of the simulation. This position is called as the instantaneous mean position. The smaller amplitude motion about the mean position is computed by perturbation expansion method. Thus, it can be guaranteed that the perturbation expansion factor is always smaller. The numerical filtering is implemented by a wavelet transform method in this study, and a HOBEM is applied to calculate the wave field at each time step. At each time step, the overall body and free surface meshes vary with the low frequency movement, but the relative location of the computational grids is invariant. Recursive interpolation is used to get the physical values for those nodes inside the free surface mesh, and Taylor series expansion is used for the boundary nodes after the body and the mesh have translated to a new position. At the new position, computation is similar with that for wave interaction with a body moving in a steady current.
An efficient method for in vitro propagation of Alstroemeria pallida Graham rhizomes

Alstroemeria is a genus native to South America and commercially has commonly been propagated vegetatively by rhizome division, with low efficiency, high time consumption and a high risk of virus dissemination. In vitro propagation has several advantages, particularly in terms of efficiency and has been applied to the micropropagation of alstroemeria. This study aims to describe an efficient method for the in vitro propagation of Alstroemeria pallida Graham, a Chilean native species of high ornamental value. Concentrations of agar (0.0, 3.5 and 7.0 g L -1 ) and 6-benzylaminopurine (BAP) (0.0, 0.5, 1.0 and 2.0 mg L -1 ) were supplemented with MS culture medium to evaluate explant weight (g), rhizome length (cm), shoot length (cm) and proliferation rate. The highest explant weight was observed in rhizomes grown in culture medium supplemented with 3.5 g·L -1 agar (3.79 g), and treatments using 2.0 g L -1 BAP showed the highest weight increase (3.33 g) after 8 wk. The proliferation rate rose with increasing concentrations of BAP, whereas low concentrations of BAP promoted longer shoots. An efficient method for in vitro propagation of A. pallida rhizomes was described, which could be useful for its conservation, domestication and further breeding. ABSTRACT
The Effect of Skills Development Programmes and Leadership Opportunities Brought by Transformation: A Case of the Durban University of Technology

Abstract Dramatic changes are taking place in Higher Education Institutions (HEIs) in South Africa. However, the poorly coordinated transformation programmes are being implemented by leaders who have limited capabilities. This study aims to investigate the influence of the skills development programme on the realisation of the transformation agenda and explores leadership opportunities available in the post-merger and incorporation era at this university. This study employed an exploratory method where in-depth qualitative interviews were conducted with 28 university leaders in middle and senior management positions. The study findings revealed that the majority of the research participants felt that the influences of the skills development programmes on transformation were accidental, as trainings offered were irrelevant and unresponsive to their particular needs. The research participants also claimed that there was no evidence of leadership development and succession planning, and no leadership opportunities in this university, as strategic positions were occupied by Indians, at this university which was a merger of a predominantly Indian and a predominantly White Technikons in 2002.
AC 2008-2539: CARTOGRAPHY: CREATING A GLOBAL MAP-BASED FUEL USE CALCULATOR

The goal of this work was to create a web tool that offers accurate predictions of fuel consumption based on driving directions. The objective is to promote vjg"cfqrvkqp"qh"Òhwgn - sippi piÓ"xgjkengu"cpf"ect -sharing programs by providing drivers with a more accurate representation of the trade-off between vehicle selection and use and on-road fuel economy. To implement this tool, the MATLAB environment was employed in various capacities. The System Identification Toolbox was used to fit output data generated from the powertrain ukowncvkqp"uqhvyctg"ETWKUGª"kpvq"oqfgnu"vjcv"eqwnf"dg"eqorkngf"kp"vjg"Ukownkpm"Tgcn -Time Workshop and called from the JavaScript web interface. MATLAB was also used to parse and correlate the extremely large data set in the driving cycle generating script. And, last but not least, it provided the consistent working environment between the teams working on opposite sides of the earth but speaking the same (programming) language. The common platform cnnqygf"vjgo"vq"ngctp"htqo"gcej"qvjgt"cpf"dwknf"qp"gcej"qvjgtÓu"uvtgpivju"yjkng"dtkfikpi"vjg"icr" where experience was lacking. The opportunity for education extends beyond the developers and driving public, but into the classroom as well.
A New Genetic Algorithm Model-Based Prognostic Approach Applied to Onboard Electrohydraulic Servomechanisms

The ever green solution of the electro hydraulic actuator (EHA) applications for the control of modern primary flight commands, justified by the superiority of hydraulic systems in furnishing more efficient solutions for power supplying in a controlled manner, brings us to focus on the need to make the EHA as efficient and reliable as possible. To this purpose, it must be noted that reliability of modern systems is increasingly more based on the valid support of diagnostics and prognostics; in fact, these two are the most robust instruments which mitigate life cycle costs without losing reliability and guarantee, in compliance with regulations, the bases for health management of integrated components, subsystems and systems. Developing a fault detection algorithm able to identify the precursors of EHA faults and their degradation patterns is thus beneficial for anticipating the incoming failure and alerting the maintenance crew so as to properly schedule the servomechanism replacement. About that, this paper proposes a new EHA model-based fault detection and identification method (FDI) that makes use of deterministic and heuristic solvers in order to converge to the actual state of wear of the tested actuator. The proposed FDI algorithm has been tested on three different types of progressive failures (the clogging of the first stage of the flapper-nozzle valve, the rising of friction between spool and sleeve and finally the rising of friction between jack and cylinder): to this purpose, a dedicated simulation test environment was developed. Results showed an adequate robustness and a suitable confidence was gained about its ability to early identify EHA malfunctions with low risk of false alarms or missed failures.
The Influence Of Destination Personality And Perceived Value On Destination Image In National Park Bunaken And Wakatobi

The aim of this study was to test the concept destination personality, perceived value, and destination image. In particular, this study aims to determine how much influence destination personality and perceived value to destination image on marine tourism in Bunaken and Wakatobi National Park. This type of research is descriptive and verified. The survey was conducted using questionnaires to 223 tourists traveling in Bunaken and Wakatobi especially scuba diving activities. By analyzing using the SEM (structural equation model) with AMOS program. Descriptive research results indicate that the destination personality, perceived value owned marine tourism Bunaken and Wakatobi has been running very good, with the exception of the destination image is considered pretty good. While the research results verification that destination personality affect destination image with a standard deviation of 0.46 or effect (46%). Then the perceived value affects the destination image with the effect of a standard deviation of 0.30 (30%). Then the effect of simultaneous destination personality and perceived value to destination image with a standard deviation of 0.39 or (39%). Keyword: destination personality, perceived value, destination images ————————————————————