Miracle-dz/UniFAR-FTUs huggingface dataset:
Prediction of Passenger Flow on the Highway Based on the Least Square Suppoert Vector Machine

Abstract A support vector machine is a machine learning method based on the statistical learning theory and structural risk minimization. The support vector machine is a much better method than ever, because it may solve some actual problems in small samples, high dimension, nonlinear and local minima etc. The article utilizes the theory and method of support vector machine (SVM) regression and establishes the regressive model based on the least square support vector machine (LS-SVM). Through predicting passenger flow on Hangzhou highway in 2000–2008, the paper shows that the regressive model of LS-SVM has much higher accuracy and reliability of prediction, and therefore may effectively predict passenger flow on the highway.
EFFICIENT EVOLUTIONARY STRATEGY OPTIMISATION PROCEDURE TO SOLVE THE NONCONVEX ECONOMIC DISPATCH PROBLEM WITH GENERATOR CONSTRAINTS

A simple and efficient algorithm based on evolutionary strategies is proposed for the solution of the economic dispatch (ED) problem with noncontinuous and nonsmooth/nonconvex cost functions and with generator constraints being considered. The proposed method solves both, the ED problem with nonconvex/nonsmooth cost functions due to valve-point loading and the ED problem that takes into account nonlinear generator characteristics such as ramp-rate limits and prohibited operating zones in the power system operation. The effectiveness of the algorithm is demonstrated using six different test systems and the performance is compared with other relevant methods reported in the literature. In all cases, the proposed algorithm either matches or outperforms the behaviour reported for the existing algorithms. This level of performance is obtained despite the simplicity of the approach.
STRUCTURAL ATTRIBUTES, DIVERSITY AND MANAGEMENT OF SOME VAN PANCHAYAT FOREST STANDS OF GARHWAL HIMALAYA

Oak (Quercus oblongata) is an important component of mid-altitude ecosystem of the Central Himalaya which are exposed to over-exploitation making conditions favourable for the invasion by light-demanding conifers such as chirpine (Pinus roxburghii). The present study provides information on woody vegetation structure, composition, regeneration and management of four broadleaved forest stands of Garhwal Himalaya managed by Village Panchayat. Quercus oblongata was the most important and dominant species in all the stands. Although dominance was shared by a number of species, no single species was found to complete with this climax species. The presence of Alnus nepalensis (a nitrogen-fixing species) depicts the poor nitrogen status of these forest stands. High density values and low basal cover suggest that these community forest stands are younger than the natural oak reserve forests of the Central Himalaya. The richness index shows that the seedling strata are ecologically richer than the tree, sapling and/or shrub strata. High richness in the seedling strata is attributed to the low magnitude of biotic interferences in these communities based conserved forest stands. The regeneration potential of Quercus oblongata is much higher than the natural oak forests of Central Himalaya managed by the forest department. This supports the view that moderate disturbance regimes are more conducive to satisfactory regeneration of this species. Since the management of these forest stands is looked after by the Village Panchayat, they are introducing some conifers for their vested interests. This may add an additional competition of the broadleaved climax species with conifers as has been witnessed in most of the broadleaved oak forests of this altitudinal range.
The TACQ computer program for automatic time domain reflectometry measurements. I. Design and operating characteristics

Despite the increased use of time domain reflectometry (TDR) for measurement of soil water content and bulk electrical conductivity (BEC), there are few public releases of software for TDR system control. The TACQ program, under development since the early 1990s on a wide variety of soils, allows control of multiplexed systems supporting up to 256 TDR probes. The program is DOS-based to ease creation of low-power, embedded computer systems; and to eliminate resource conflicts and timing difficulties inherent to multi-tasking, Windows-based operating systems. So that it can be easily used in embedded systems, the program was written to run with as little as 640 kbytes of RAM and 1 Mbyte of expanded memory, and with a variety of graphics standards and CPUs ranging from 80186 to Pentium. Embedded computer systems based on the PC-104 specification have been implemented using TACQ; and the program has been integrated into a supervisory control and data acquisition system (SCADA) for irrigation scheduling and control. Using a parallel port, the program controls multiplexers from both Campbell Scientific (Logan, Utah), and Dynamax (Houston, Texas); and it allows reading of probes in any user-defined order if using the latter. The user has complete control over multiplexer address assignments, interconnection of multiplexers, and probe locations on each multiplexer; including individual settings for probe length, window width, averaging, distance to each probe, gain, and type of data acquired (waveform, travel time, apparent permittivity, water content, relative voltages for bulk electrical conductivity, or a combination of these). Interfaces to TDR instruments including Tektronix 1502 (modified), 1502B, and 1502C cable testers are implemented through an RS-232 port. Concurrent temperature data may also be acquired (ComputerBoards models CIO-DASx). System power control is implemented through the computer’s own power management capabilities, and through direct control of power to the TDR instrument and video subsystem where applicable, thus allowing creation of very low-power systems. The program is stable and suitable for use in environmental measurement systems that are unattended for long periods of time. Waveform interpretation methods are discussed in the second paper in this series.
Analysis of a fault‐tolerant hybrid‐excitation DC motor

Purpose – The purpose of this paper is to investigate the use of hybrid‐excitation solutions, using contemporaneously permanent magnets and field coils, for DC machines intended to operate as the core of high‐reliability drives in critical applications supplied by batteries (e.g. fire‐extinguishing pumps, smoke blowers, etc.) where a roughly constant speed is required and a minimal use of electronic devices is prescribed to improve overall dependability.Design/methodology/approach – A high‐reliability hybrid‐excitation DC motor, initially designed basing on theoretical considerations, is then analyzed using purposely developed 2D and 3D finite element method (FEM) electromagnetic models under static, dynamic, healthy, and faulty conditions.Findings – The simulation results confirm that properly designed drives employing hybrid‐excitation DC motors may constitute an effective solution for applications requiring a very high reliability under DC supply with limited speed regulation capability.Research limita.
Design of animal waste management strategies to achieve regional environmental objectives

Anaerobic lagoons are currently used for swine waste management in many countries, worldwide. Recent initiatives, for example in North Carolina, USA, calling for their replacement have increased the need for characterisation of the cost and treatment effectiveness of each alternative. Identification of the most effective solution to achieve collective environmental targets needs an integrated approach that examines and searches among technology alternatives at all farms simultaneously. In this research, management strategies were developed that will aid policy makers, planners, and farmers in making cost effective lagoon replacement decisions to achieve desired treatment and public protection goals. A mixed-integer linear programming model that allows the examination of management scenarios for a region was developed and used to search for good solutions with respect to various goals (cost, nutrient release and risk). With a target of 30% reduction in nitrogen for a case study watershed, large difference in cost (a more than three-fold reduction in cost was achieved) and risk resulted for the management scenarios.
Water Injection Effects on Compressor Stage Operation

In the present paper, experimental work concerning the effect of water injection on a compressor stage is presented. The effect on compressor stage performance and stability is examined for water injection up to 2%. The behavior of the airflow in the blade rows is examined through aerodynamic measurements. The results indicate that although the water injection appears to not have any significant effect on the flow pattern and to stage pressure rise and stall margin, there is a measurable effect on compression efficiency, which seems to result mainly from losses of a mechanical nature and water acceleration. The efficiency degradation is proportional to the water ratio entering the engine.
ScienceDirect 68 th Conference of the Italian Thermal Machines Engineering Association , ATI 2013 CFD analysis of the acoustic behavior of a centrifugal compressor for high performance engine application

The paper reports an activity aiming at the characterization of the acoustic noise of a centrifugal compressor for a currently made high performance engine. All the analyses are carried out through the use of Detached Eddy Simulation. During high-load / lowengine speed operations of the engine, the compressor exhibits noise peaks above 150 dBA at relatively low frequencies, whose origin is relatively hard to rationalize. The use of three-dimensional CFD simulation appears to be very promising to gain a better understanding of the complex flow structures at the compressor inlet as well as to promote design optimizations aiming at limiting the acoustic emissivity of the component. In view of the dependency of the acoustic phenomena on the instantaneous pressure waves and flow structures, fully transient CFD simulations are highly recommended, together with the use of sophisticated numerical techniques such as Large Eddy and Detached Eddy simulation [1], [2], which are widely recognized to be able to better capture highly unstable features than the common RANS approach [3], [4]. In order to limit the computational cost of the analyses, preliminary steady-state RANS simulations are carried out to both initialize the flow field and to evaluate the grid capability to properly match the desired frequency spectrum. © 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of ATI NAZIONALE. "
Sequential Experimental Study and Optimisation of an Acid Copper Pattern Plating Process

Sequential application of fractional factorial and response surface designs in the regression modelling and optimisation of a multi‐parameter type manufacturing process is presented. In particular, the coating thickness variation of an acid copper plating process was minimised with high bath acidity, high cathodic current density and large anode‐cathode separation. Statistically designed experiments are shown to be highly effective in studying the effects and interactions of the various process factors.
Analysis and optimization of connection availabilities of optical networks with different protection strategies

This work is motivated by interest in analyzing and optimizing availability of optical networks under different protection strategies. Methodology dealing with availability calculation, protection strategies, spare capacity, redundancy and sensitivity analysis is described. A case study calculates the availability of all connections within a long haul US-network using three protection strategies: path protection, span protection and protection-cycles. The distributions of connection down time of the three protection strategies are given. The availability optimization potential is estimated based on analysis of its sensitivity on reliability input data. Advantages and disadvantages of each strategy are compared from the availability and spare capacity requirement points of view.
Fostering Children's Creativity Through Preschool Stem Creativity Module

Creativity is a very important skill in 21st century education and need to be nurtured since early age. Previous researchers had claimed that creativity skills could be improved by learning Science, Technology, Engineering, and Mathematics (STEM). However, less attention is given towards fostering creativity through STEM in preschool. Therefore, this study aimed to identify the potential contributions of Preschool STEM Creativity Module on creativity development among preschool children. In this quasi-experimental study, 30 children (aged 6 years old) were divided into experimental and control groups. In the experimental group, the researchers fostered children’s creativity through Preschool STEM Creativity Module. Creativity Test was used as an instrument to assess creativity development and the level of creativity through four dimensions of creativity namely fluency, flexibility, originality, and elaboration. Scores for pre and post-tests were analyzed using descriptive, independent t-test, paired sample t-test, and Wilcoxon test. The results were indicated that the Preschool STEM Creativity Module intervention have led to a positive impact on the development of children’s creativity. Furthermore, this study had also found that the intervention of this module could help to improve the level of creativity among children in terms of flexibility, fluency, originality and elaboration. Nevertheless, the improvement in fluency for the experimental group was seen to be lower when compared to the control group. Even so, in overall, STEM learni ng has been found to contribute to preschool children’s creativity. And due to that reason, STEM learning should be implemented into the preschool curriculum in responds to the national education initiatives by strengthening STEM and achieving the 21st century skills.
Maintenance optimization for a system with a gamma deterioration process and intervention delay: Application to track maintenance

This paper presents a maintenance strategy model of a system with a gamma deterioration process, regular inspection times, and intervention delay. Interventions are deemed necessary when the deterioration process is greater than an intervention level at inspection time. The objective is to determine the long-term mean costs of different maintenance strategies and to optimize these costs with respect to specific parameters, such as the intervention level or the inspection interval. Semi-regeneration properties at the inspection times and associated Markov renewal techniques are used in order to compute the long-term mean costs. This model is applied to the maintenance of railway tracks.
Validating the Odor Footprint Tool Using Field Data

Trained participants monitored odors around a 4,800-head finishing site in eastern Nebraska during 2005 and 2006. ‘Mobile odor assessors’ monitored odors within the downwind odor plume and reported that odors at off-site locations (at least 200 feet away) were consequentially annoying in 20 out of 192 assessments. On-site odor levels were considered annoying in 33 of 39 instances. For the same off-site locations and times, modeling predicted 18 annoying events, resulting in a 90% prediction rate (18 vs. 20) of annoyance frequency. The net error rates for missed annoyance for off-site locations were 9.1% and 10% based upon concentration data and annoyance ratings, respectively. Errors were mostly a result of either the predicted concentration at the receptor location was near the annoyance threshold, or the orientation of the odor plume was slightly off.
TWO-DIMENSIONAL TESTS OF AIRFOILS OSCILLATING NEAR STALL. VOLUME II: DATA REPORT

Abstract : The report presents a discussion of the test facility, models, and data gathering and reduction system used in the tests of oscillating airfoils. It also contains the actual computer data that resulted from the wind tunnel tests of the airfoils. A set of tables provides a quick cross-reference between the various test factors and the page on which the data appear. (Author)
Input offset compensation scheme with reduced sensitivity to charge injection and leakage

A simple input offset compensation scheme, with reduced sensitivity to charge injection and leakage, is introduced. It stores an amplified version of the offset that is applied during normal operation on the input side through a capacitive divider. Offset compensation takes place in a voltage additive manner in a separate path from the input signal. Experimental results of a test chip are shown that validate the proposed scheme.
Dual frequency piezoelectric transducer for medical applications

Recent advances in the field of medical ultrasound requires a dual frequency transducer capable of operation at two frequencies. This is usually achieved by having a broadband transducer which can be excited at two different frequencies. Such frequency characteristics will allow echo-amplitude imaging at the higher frequency where a high resolution is required and color flow imaging (CFI) at the lower frequency for improved sensitivity. In this paper a novel dual frequency transducer design, demonstrating two distinct resonance, is presented. This is achieved by varying the geometry of the piezoelectric ceramic in a manner which results in two distinct thickness mode resonance. The results showing the temporal characteristics of such transducer are presented. The parameters influencing the temporal response of this transducer are discussed. It is also shown that the two resonance frequencies are independent. Finally, the advantages of this new design over the conventional techniques are discussed.
Towards solving the mobility issues of unmanned ground vehicles

This paper looks at the mobility issues of Unmanned Ground Vehicles (UGV). The different mobility types and novel developments used on UGV's are reviewed and reasons why they have been chosen, as well as the need for incorporated systems in modern commercial vehicles which are required to control vehicular locomotion in order to make driving over certain ground types successful and efficient. Our current research into using innovative solutions to improve UGV mobility by creating a dynamic reconfigurable system that can adapt to situational changes is highlighted. This concept will give the vehicle the ability to be able to cope with potentially any task in any condition whether known or unknown, ultimately creating a system that can take more risks and have fewer limitations on its uses.
30 nm self-aligned FinFET with large source/drain fan-out structure

A 30 nm self-aligned FinFET with a large single-crystalline source/drain structure is proposed and has been fabricated. The fabricated FinFET shows large intrinsic transconductance of 1070 µS/µm at 0.8 V gate overdrive and good short channel behaviour in spite of thick gate oxide of 3.6 nm.
Experimental studies of vortex flaps and vortex plates

Low-speed wind-tunnel tests have been made on a number of vortex flap and vortex plate configurations at the Cranfield Institute of Technology. The objectives of the experiment are to assess the benefits of these devices on the lift/drag ratio improvement of delta wings. The force and surface pressure measurements were made on a 1.15-m span, 60-deg delta wing model. Results indicate that the vortex flap deflection angle, which causes the flow to attach on the flap surface without any large separation, shows a much higher lift/drag ratio than the flap deflection angle which forms a leading-edge separation vortex over the flap surface. The performance of a vortex plate protruding from the leading edge of the datum delta wing is comparable to that of the vortex flap. However, when the vortex plate is used with the vortex flap deflected, it showed no benefit in these tests.
A Combined Electromagnetic and Heat Transfer Model for Heating of Foods in Microwave Combination Ovens

The objective of the present research was to establish a combined electromagnetic and heat transfer model to predict the temperature distribution in food loads during microwave and forced air heating in a microwave combination oven. The microwave process was modelled using the finite difference time domain (FDTD) method to numerically solve Maxwell’s equations in three dimensions, assuming the food properties to be constant. The power dissipated at each cell in the computational domain was subsequently calculated. Heat transfer was modelled using Fourier’s equation for heat conduction with convective boundary conditions. The conduction model was spatially discretised using finite elements. The power dissipation field was transferred to the finite element heat transfer code using interpolation modules to couple the models. Validation experiments were made for comparisons with predicted temperatures inside a model food load with brick-shaped geometry. Good qualitative agreement between predicted and measured temperature profiles was obtained.
Tracking control of piezoceramic actuators by using preisach model

A major limitation of piezoceramic actuators is their lack of accuracy due to hysteresis nonlinlinearity. The modified preisach model was used to describe the hysteresis of piezoelectric actuator. The output prediction using this model was compared with experimental data. A comparison was made between a regular PID feedback control scheme and a PID feedback control scheme with the modified preisach model in the feed-forward loop. The result shows that using this model can reduce the hysteresis of the displacement to voltage from 18.3% to 3.9%, and the maximal relative error between the output prediction and experimental data is 4.1% over the entire working range 0-19 μm. The dynamic response speed and the tracking control accuracy of the piezoceramic actuator are greatly improved by augmenting a feedback loop with the modified preisach model of hysteresis nonlinearity in the feed forward loop.
Solución al problema de empaquetamiento bidimensional usando un algoritmo híbrido constructivo de búsqueda en vecindad variable y recocido simulado

En este trabajo, se modela el empaquetamiento de rectangulos con base en divisiones del area disponible, se utiliza una codificacion de arbol binario para disponer las piezas de forma que se garantice el corte de tipo guillotina y se propone un algoritmo dividido en tres etapas que trabajan con estrategias individuales inspiradas en algoritmos de vecindad variable, recocido simulado y tecnicas constructivas para lograr la solucion del problema. Se comparan las respuestas obtenidas con base en la funcion objetivo que cuantifica el area utilizada y el porcentaje de utilizacion del material disponible para cincuenta casos de prueba de la literatura especializada frente a sus respectivas respuestas reportadas obteniendose excelentes resultados.
Food as a component in destination marketing- a case study of Visit England

This document is the author deposited version. You are advised to consult the publisher's version if you wish to cite from it. Published version STALMIRSKA, Anna (2016). Food as a component in destination marketinga case study of Visit England. In: KOZAK, M and KOZAK, N, (eds.) 8th World Conference for Graduate Research in Tourism Hospitality and Leisure, 24-29 May 2016, Bodrum, Turkey, Proceedings Book, 4th Interdisciplinary Tourism Research Conference. Ankara, Turkey, Anatolia: An International Journal of Tourism and Hospitality Research. , 24-29.