Miracle-dz/UniFAR-FTUs huggingface dataset:
Sensitivity Studies of Particle Emissions and Transport Around a Moving Vehicle

Abstract : The paper will provide representative simulations of particle transport around a vehicle in order to investigate some of the issues related to the accurate prediction of emission and transport of particles induced by a moving vehicle with a transverse blowing wind. Special treatments in boundary conditions and wall law function are discussed and applied to maintain the shape of atmospheric boundary layer wind velocity profile. For the vehicle, we adopt the geometry of a Nissan Pathfinder SUV to study the effects of vehicle emission and transport around a moving vehicle. We perform a set of simulations to better understand the modeling requirements for dust emissions including a sensitivity study to determine the modeling parameters that are most important for accurate modeling of dust generation and transport. In particular, we study the effects of location, size distribution, and initial velocity distributions of the modeled dust emissions on predicted downwind atmospheric dust distributions.
Design of An Extensible Anti-Virus Framework

Anti-Virus engine depends too much upon the signature database and each detection module couples tightly. To solve this problem, an extensible framework is presented. The function module and data module are decoupled by using the intelligent signature and decomposing composite modules. Inversion control is used to change the control coupling into the interface coupling in the modules of Anti-Virus engine. The extensible framework not only solves the disadvantages of the Anti-Virus software, but also applies to the design of embedded security device. A prototype is implemented to verify the validity of the proposed scheme and key algorithm. The experimental results show that the novel Anti-Virus engine can detect the virus more effectively than traditional models.
Antecedents of Customer e-Loyalty with the Effect of Trustworthiness in Malaysia Context

The rapid growth of online shopping has led to inspire customer e-loyalty among Malaysians especially living in this digital atmosphere. Commitment-Trust Theory is applied as the theoretical base to explain the factors influencing customer e-loyalty. The primary objective of this study is to investigate the direct impact of customer interface quality, SERVQUAL, website quality, technology acceptance factors, and technology trust on customer e-loyalty. This study also aims to examine the indirect effect of independence variables on customer e-loyalty through the mediating effects of trustworthiness. SmartPLS 2.0 (M3) is applied to study the impact. A survey is conducted with three hundred and ninety five respondents who had online purchase experience. The findings indicated that customer Interface quality, SERVQUAL, website quality, technology acceptance factors, and technology trust have positive impact on customer e-loyalty. Trustworthiness is used as mediator exclusive of SERVQUAL. Several implications of the findings, limitations of the study, and recommendations for future research are discussed.
Monitoring the Time Course of Phonological Encoding

Abstract Three experiments examined the time course of phonological encoding in speech production. A new methodology is introduced in which subjects are required to monitor their internal speech production for prespecified target segments and syllables. Experiment 1 demonstrated that word initial target segments are monitored significantly faster than second syllable initial target segments. The addition of a concurrent articulation task (Experiment 1b) had a limited effect on performance, excluding the possibility that subjects are monitoring a subvocal articulation of the carrier word. Moreover, no relationship was observed between the pattern of monitoring latencies and the timing of the targets in subjects′ overt speech. Subjects are not, therefore, monitoring an internal phonetic representation of the carrier word. Experiment 2 used the production monitoring task to replicate the syllable monitoring effect observed in speech perception experiments: responses to targets were faster when they corresponded to the initial syllable of the carrier word than when they did not. We conclude that subjects are monitoring their internal generation of a syllabified phonological representation. Experiment 3 provides more detailed evidence concerning the time course of the generation of this representation by comparing monitoring latencies to targets within, as well as between, syllables. Some amendments to current models of phonological encoding are suggested in light of these results.
Oscillatory convective structures and solutal jets originated from discrete distributions of droplets in organic alloys with a miscibility gap

The pattern formation process driven by N droplets out of thermodynamic equilibrium, uniformly distributed on the bottom of a container filled with a partially miscible organic liquid, is investigated for different values of N by means of a multiprocessor solution of the Navier-Stokes equations. The considered system is intended to model the typical phenomena occurring during the thermal processing of liquid-liquid systems exhibiting a miscibility gap (the so-called “immiscible alloys”). These alloys undergo sedimentation of the separated heavier phase to the bottom of the container under normal gravity conditions. Droplets in nonequilibrium conditions are responsible for the occurrence of still poorly known fluid-dynamic instabilities. In the present analysis we provide a clear and quite exhaustive picture of the different stages of evolution of fluid motion inside the container. The distribution of solute is found to depend on the complex multicellular structure of the convective field and on associated.
Characteristics features, economical aspects and environmental impacts of gen-4 nuclear power for developing countries

The growing demand of energy has delicate the requirement of alternative sources of energies other than fossil fuels. Though renewable energy resources like solar, biomass, hydro and geothermal energy appear as environment friendly, replenishing sources of energy, a comprehensive solution appears far-fetched as far as large scale production and wide-spread dissemination is concerned when long term cost factors are taken into consideration. In this paper, discussions on the advanced fourth generation nuclear power on the basis of environmental contamination, energy security, cost of fossil fuels and electricity generation and have philosophy to the prospects of nuclear power as the ultimate future energy option for the developing countries are done. This study proposes that gen-4 nuclear appears to be a long term environment favorable panacea to the much discoursed problem of energy crisis by maintaining energy security and long term cost concern in developing countries as well as in the whole world. Keywords: Gen-4 nuclear, reactor, kinetics, neutron, delayed neutron, transient.
Measuring Drivers’ Effect in a Cost Model by Means of Analysis of Variance

In this study the author goes through with the analysis of a cost model developed for Integrated Logistic Support (ILS) activities. By means of ANOVA the evaluation of impact and interaction among cost drivers is done. The predominant importance of organizational factors compared to technical ones is definitely demonstrated. Moreover the paper provides researcher and practitioners with useful information to improve the cost model as well as for budgeting and financial planning of ILS activities.
Calibration of large Rogowski coils

Calibration of Large Rogowski coils S.L Combrink Department of Electrical and Electronic Engineering, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa. Thesis: MIng(EE) February 2016 The Square Kilometre Array aims to be the world’s largest radio telescope. South Africa will host the mid to high frequency division of the SKA and the core site will be populated with 64 offset Gregorian radio telescopes for the first phase. To achieve a resolution 50 times higher than the Hubble Space Telescope, radio frequency interference (RFI) must be kept as low as possible. Past and present studies are committed to keep the introduced and already present RFI as low as possible. Our study stems from a previous study on RFI originating from lightning (induced) currents. The study examined KAT-7, the precursor to MeerKAT, extensively and from it valuable recommendations were made. This study also gave rise to the creation of a Rogowski coil (RC) for current measurements. The RC is physically large to be able to fit around antenna struts. However, calibration was not considered for that study. Since current measurements on antenna struts are still of interest, it gives rise to our investigation into the calibration of the large RC for accurate measurements. The study begins by analysing a frequency domain (FD) method commonly used by current probe manufacturers. Good agreement between a theoretical model, simulation and measurement is obtained, but without proper de-embedding, the method is only accurate at frequencies up to 100 MHz. To extend the frequency range, a time domain (TD) technique is applied where the signals are analysed in the TD and unwanted responses are gated out, providing accurate calibration to much higher frequency. Both approaches are verified with calibration data and measurements of two commercial current probes. To improve RC calibration accuracy, an attempt is made to reduce the main mismatch reflection between the measurement device and calibration fixture. A high permittivity dielectric is investigated which, unfortunately, produced inconclusive results. Using a larger diameter conductor with a matching profile resulted in a decrease in reflection magnitude as expected. However, the matching profile introduced sub-reflections. To avoid uncertainty due to sub-reflections, the large RC was calibrated without the matching profile. To achieve a good calibration over all frequencies, a hybridised method is applied which uses the results from the frequency ranges where each method provides the most accurate calibration results, low frequency from the FD method and the higher frequency from the TD method iii Stellenbosch University https://scholar.sun.ac.za
Micrixalus saxicola a foot-flagging frog from India

Manche Froscharten verwenden akustische und visuelle Signale fur inter- und intraspezifische Kommunikation in unterschiedlich sozialem Kontext. Unsere Studie beschreibt das akustische und visuelle Verhalten eines in Indien endemischen Winkerfrosches (Micrixalus saxicola). Die tagaktiven Mannchen zeigen wahrend agonistischen Interaktionen Verhaltensweisen, wie Werberufe, Winken mit den Hinterbeinen und Fusheben, um die Bereitschaft zu signalisieren Standorte zu verteidigen. Unsere Ergebnisse aus einer quantitativen Videoanalyse von 10 Interaktionen zwischen jeweils zwei Mannchen zeigen, dass Beinwinken als direktionales Signal in Richtung des Gegners verwendet wurde, aber seltener vorkam, als Rufen. Die akustischen und visuellen Signale waren nicht funktionell gekoppelt, wie es von Winkerfroschen der Gattung Staurois bereits bekannt ist. Die Analyse von Signalablaufen ergab, dass Verhaltensweisen, in denen der Gegner mit dem Bein gestosen wurde (physische Angriffe), signifikant mehr Attacken von interagierenden Mannchen auslosten. Wir behaupten, dass das Signal Beinwinken sich von der haufig zu beobachtenden Kampftechnik des Stosens ritualisiert hat, um die Gefahr von physischen Angriffen zu reduzieren. Die Ergebnisse dieser Studie unterstutzen die Annahme, dass das Verhalten des Beinwinkens bei M. saxicola einen naszierenden Status in der Evolution von visuell signalisierenden Froschen darstellt. %%%%Several anuran species use acoustic and visual signals for inter- and intraspecific communication in diverse social contexts. Our study describes acoustic and visual behaviors of the Small Torrent Frog (Micrixalus saxicola), a diurnal ranid frog endemic to the Western Ghats of India. During agonistic interactions males display advertisement calls, foot flagging and taping (foot lifting) behaviors to signal the readiness to defend perching sites in perennial streams. Our results from a quantitative video analysis of 10 male-male interactions indicate that foot-flagging displays were used as directional signals toward the opponent male, but were less abundant than calls. The acoustic and visual signals were not functionally linked as reported for foot-flagging frogs from the genus Staurois. Analysis of behavioral transitions revealed that kicking behaviors (physical attacks) significantly elicited kicks from interacting males. We suggest that foot-flagging displays ritualized from the frequently observed fighting technique (kicking) to reduce physical attacks. The results of this study support the assumption that foot-flagging behavior in M. saxicola represents a nascent state in the evolution of visual signaling frogs.
In Vitro Fertilization Activators for Future

Artificial insemination is an indispensable technology for cattle breeding and is used for treating infertility in humans. Thus, new or improved methods are needed to increase the efficiency of artificial insemination. In vitro fertilization (IVF) has been developed in mice. Although many mouse lines produced using IVF have been preserved by freezing embryos and/or fertilized eggs, the more efficient IVF using freezing preservation or long‐term refrigeration of sperm is expected to preserve mouse lines more easily. In this chapter, we introduce the active compounds in licorice to improve the rate of IVF. We previously reported that the rate of IVF in mice was improved by adding a water extract of licorice (Glycyrrhiza uralensis), but not glycyrrhizin, to the artificial insemination culture medium. Recently, we analyzed the active ethyl acetate fraction containing high levels of flavonoids. This fraction was further purified by bioassay‐guided separation to isolate isoliquiritigenin and formononetin, which contributed to the improved rate of IVF. Isoliquiritigenin and formononetin may be useful therapeutic agents for infertility treatment.
Primary marine aerosol emissions from the Mediterranean Sea during pre-bloom and oligotrophic conditions: correlations to seawater chlorophyll a from a mesocosm study

Abstract. The effect of ocean acidification and changing water conditions on primary (and secondary) marine aerosol emissions is not well understood on a regional or a global scale. To investigate this effect as well as the indirect effect on aerosol that changing biogeochemical parameters can have, ~ 52 m3 pelagic mesocosms were deployed for several weeks in the Mediterranean Sea during both winter pre-bloom and summer oligotrophic conditions and were subjected to various levels of CO2 to simulate the conditions foreseen in this region for the coming decades. After seawater sampling, primary bubble-bursting aerosol experiments were performed using a plunging water jet system to test both chemical and physical aerosol parameters (10–400 nm). Comparing results obtained during pre-bloom and oligotrophic conditions, we find the same four log-normal modal diameters (18.5 ± 0.6, 37.5 ± 1.4, 91.5 ± 2.0, 260 ± 3.2 nm) describing the aerosol size distribution during both campaigns, yet pre-bloom conditions significantly increased the number fraction of the second (Aitken) mode, with an amplitude correlated to virus-like particles, heterotrophic prokaryotes, TEPs (transparent exopolymeric particles), chlorophyll a and other pigments. Organic fractions determined from kappa closure calculations for the diameter, Dp ~ 50 nm, were much larger during the pre-bloom period (64 %) than during the oligotrophic period (38 %), and the organic fraction decreased as the particle size increased. Combining data from both campaigns together, strong positive correlations were found between the organic fraction of the aerosol and chlorophyll a concentrations, heterotrophic and autotrophic bacteria abundance, and dissolved organic carbon (DOC) concentrations. As a consequence of the changes in the organic fraction and the size distributions between pre-bloom and oligotrophic periods, we find that the ratio of cloud condensation nuclei (CCN) to condensation nuclei (CN) slightly decreased during the pre-bloom period. The enrichment of the seawater samples with microlayer samples did not have any effect on the size distribution, organic content or the CCN activity of the generated primary aerosol. Partial pressure of CO2, pCO2, perturbations had little effect on the physical or chemical parameters of the aerosol emissions, with larger effects observed due to the differences between a pre-bloom and oligotrophic environment.
Re-examination of analytical models for microwave scattering from deciduous leaves

This paper presents an examination of classical scattering models for radar cross sections of deciduous leaves, such as the generalised Rayleigh-Gans (GRG) model and the physical optics (PO) model. The PO model employs the resistive sheet approximation in this study. The validity regions of the analytical models for microwave scattering from deciduous leaves are investigated by comparison with the precise numerical results of the method of moment. It was found that the GRG and PO models extend their validity regions for estimating the scattering amplitudes as the thickness of a lossy dielectric disk decreases. The GRG and PO models can be used alternatively for computing the scattering matrices of natural deciduous leaves at microwave frequencies regard- less of the size of the leaves, because of the very small thickness of the leaves (0.2 - 0.4 mm).
Flatness-based High Frequency Control of a Hydraulic Actuator

This paper presents the design and implementation of a nonlinear feedforward control algorithm for a hydraulic actuator driven by a multistage servo valve. Combined with a conventional feedback control algorithm, high frequencies can be achieved even for large-scale strokes. In addition to the desired trajectory, the feedforward controller accepts the predicted dynamic load on the hydraulic actuator as an input. The performance of the control concept as well as the advantages of the load input are verified in simulations and experiments. Being exemplarily used for realizing a crankshaft-less test stand for free piston engines, the control algorithm is potentially suitable for further applications using hydraulic actuators in high frequency domain.
Role of Vernacular FM stations in National Cohesion and Intergration in Kenya

In a development context, media has been characterized as innovator and mobiliser of positive transformation and this research dissertation has been written to establish the extent to which Kenyan media institutions, vernacular FM stations, have enhanced national cohesion and integration of the Kenyan society. The NCIC, a government statutory body, has been tasked with the major objective of promoting and ensuring the cohesion and integration, is achieved. There has been in depth association of this body and the media fraternity in Kenya and more so the local vernacular FM stations in the study. The methodology in this research gives the style, tools of collecting data from the respondents who were chosen from the specific vernacular Fm stations. The data presentation was done by use of SPSS software and depicting tabular and graphical presentation. The summary of findings in chapter five critically looks at the diagrammatic and tabular presentation for the easy use of the would be disseminator with a compressive conclusion
Initial Development of Embedded Low-Power Parallel Processing for On-Orbit Spacecraft Anomaly Management

Maintaining the health of a spacecraft is a critical element of satellite operations, typically driving operations costs and often requiring standing armies of highly trained operations staff. An important aspect of this work is anomaly management (AM), which is the detection, diagnosis and resolution of anomalous conditions. Research in this area ranges from the development of robust reasoning techniques to the design of highly-performance flight processors able to implement these techniques on-orbit. Our recent work in this area focuses on the composition of advanced model-based reasoning (MBR) algorithms for AM that can be efficiently executed on a new generation of lowpower, low-cost multi-core embedded processors. These processors provide a parallel-processing capability that can potentially revolutionize the performance of highly accurate but deliberative and computationally expensive MBR algorithms while still being suitable for space vehicle applications. In this paper, we will describe our latest theoretical and algorithmic contributions to MBR-based AM. We will discuss how our successfully demonstrated algorithms are being recast for parallel processing, and how these newly formed algorithms are being prototyped using new low-power multi-core embedded processors. Finally, we will discuss testbeds for this technology ranging from ground engineering units to simple student-based flight experiments.
Impact of 17 β Estradiol on Catfish , Heteropneustes fossilis ( Bloch . )

Article History Industrial and municipal sewage treatments works effluents discharges and surface run off represent the main source of synthetic and naturals estrogens into the aquatic environment. 17β estradiol (E2) is now considered as an important contaminant of the aquatic environment. Despite this, little is known about the biological effects of exposure to low concentrations of E2, or the sensitivity of different fish life stages to the disruptive effects of E2. To address these issues, the present has been conducted a series of experiments on the freshwater fish Heteropneustes fossilis (Bloch.) exposing them to low concentrations of E2 (5, 25 and 100 ng E2/l). These concentrations correspond to those commonly found in effluents and for the lower dose, a concentration found in some surface water. In the adult stage, secondary sexual characteristics, gonadal growth (the gonado-somatic index (GSI)) and sex ratio were calculated. For all experiments, the concentrations of E2 were measured by a gas chromatography–mass spectrometry (GC–MS). This study demonstrated that early life stages of the fish are sensitive to low concentrations of E2 leading to partial feminization of the population and to vitellogenin induction and highlight the effects on vulnerable developmental stages. Moreover these data raise further concerns about the effects of steroid estrogens in the environment on fish reproductive health. Received : 11-03-2011 Revised : 18-05-2011 Accepted : 19-05-2011
Mean-Field and Kinetic Market Models

This thesis was concerned with the illustration and development of kinetic models, related to financial markets. Three models with particular attention to their long time behaviour were presented. The derivation of a novel model with an explicit analysis based on results from particle and statistical physics was the main purpose. In favour of a realistic illustration we considered homogeneous as well as heterogeneous conditions. In conclusion we yielded mean-field partial differential equations for the corresponding models.