Miracle-dz/UniFAR-FTUs huggingface dataset:
Keeping up with Google: Searching in Text Databases

xiv 1. Inleiding . 1 1.1 Informatie extractie en omvorming tot databases. 5 Stap 1: Crawling . 6 Stap 2: Extractie van informatie . 7 Stap 3: Toevoeging van semantiek. 9 Stap 4: Werken met de data . 10 1.2 Verloop masterproef . 13 2. Het Relationeel Model . 15 3. Wrapper Inductie . 17 3.1 Wrappers . 17 3.2 Het informatie extractieproces . 19 3.3 Representatie van de relaties . 22 3.4 Structuur voor de beschrijving van wrapper classes . 23 4. De LR Wrapper Class . 24 4.1 De procedure . 24 4.2 Scheidingstekens . 25 4.2. 1 Kandidaten voor . 26 4.2. 2 Kandidaten voor . 27 4.2. 3 Relatie tussen de scheidingstekens . 28 4.2. 4 Validatie van de kandidaten voor . 29 4.2. 5 Validatie van de kandidaten voor . 31 4.3 Het algoritme . 32
Board Governance and Corporate Financial Policy

This paper reviews a research framework to examine the role of board governance in influencing corporate policy of listed companies in Malaysia. The framework is an important area of research as it will highlight the significance of corporate governance practices in the aspect of board of directors as a major element in determining the corporate policy of a firm and this in turn will affect the firms’ performance. It is in light of the Malaysian Code of Corporate Governance 2012 (MCCG 2012) that focuses on strengthening board structure and its composition. The study is also unique in a way that board governance and financial policy is studied in a country with highly concentrated ownership setting. The framework relies on the agency theory as the underpinning theory for this study.
Compact Planar Beamforming Array With Endfire Radiating Elements for 5G Applications

In this paper, a compact <inline-formula> <tex-math notation="LaTeX">$4\times6$ </tex-math></inline-formula> Butler matrix (BM) based on microstrip lines is designed and applied to a linear antenna array. The proposed design creates four beams in four different directions within the 27.5 and 28.5 GHz band. One of the advantages of this BM is a reduction in the size of the beamforming network (BFN). In order to attain this objective, the basic microstrip-based <inline-formula> <tex-math notation="LaTeX">$4\times4$ </tex-math></inline-formula> BM is designed, and then modified to a <inline-formula> <tex-math notation="LaTeX">$4\times6$ </tex-math></inline-formula> BM through a dual-substrate structure to avoid crossing lines using microstrip-to-slotline transitions. The BFN is cascaded with a six-element linear antenna array with endfire radiating elements. The array can be conveniently integrated into the BFN. The resulting design benefits from low-loss characteristics, ease of realization, and low fabrication cost. The array is fabricated and tested, and the experimental results are in good agreement with the simulated ones. The multi-beam antenna size is <inline-formula> <tex-math notation="LaTeX">$5.6 \lambda \times 4.6 \lambda $ </tex-math></inline-formula> including feed lines and feed network, while the new BM design is only <inline-formula> <tex-math notation="LaTeX">$3.5\lambda _{0} \times 1.4\lambda _{0} $ </tex-math></inline-formula>, which is almost half as large as the traditional one. The measured radiation patterns show that the beams cover roughly a spatial range of 90° with a peak active gain of 11 dBi.
Solid-State Generation of High-Frequency Burst of Bipolar Pulses for Medical Applications

This paper describes the operation of a solid-state generator proposed to produce high-frequency bipolar high-voltage pulse bursts on resistive-type loads, intended for medical applications. The generator design is based on two independent solid-state unipolar positive Marx generators positioned back to back, where the load is placed between the outputs of the two generators. SiC metal–oxide–semiconductor field-effect transistors (MOSFETs) are used in order to allow high-frequency operation. A generator with two five-stage Marx generators is experimentally tested in order to deliver up to 5000-V/50-A bipolar pulses, with 500-ns–10-<inline-formula> <tex-math notation="LaTeX">$\mu \text{s}$ </tex-math></inline-formula> pulse widths and 200-ns–10-<inline-formula> <tex-math notation="LaTeX">$\mu \text{s}$ </tex-math></inline-formula> relaxation time between positive and negative pulses. The generator operates in the burst mode from 1 to 200 pulses, in excess of 500 kHz within the burst, which can have a repetition frequency up to 1 kHz limited by the input 1000-V/200-W power supply, with forced air cooling. Results, with resistive-type loads, for several single pulse and burst mode operations are presented and discussed.
Color Photometric Stereo Using Multi-Band Camera Constrained by Median Filter and Occluding Boundary

One of the main problems faced by the photometric stereo method is that several measurements are required, as this method needs illumination from light sources from different directions. A solution to this problem is the color photometric stereo method, which conducts one-shot measurements by simultaneously illuminating lights of different wavelengths. However, the classic color photometric stereo method only allows measurements of white objects, while a surface-normal estimation of a multicolored object using this method is theoretically impossible. Therefore, it is necessary to add some constraints to estimate the surface normal of a multicolored object using the framework of the color photometric stereo method. In this study, a median filter is employed as the constraint condition of albedo, and the surface normal of the occluding boundary is employed as the constraint condition of the surface normal. By employing a median filter as the constraint condition, the smooth distribution of the albedo and normal is calculated while the sharp features at the boundary of different albedos and normals are preserved. The surface normal at the occluding boundary is propagated into the inner part of the object region, and forms the abstract shape of the object. Such a surface normal gives a great clue to be used as an initial guess to the surface normal. To demonstrate the effectiveness of this study, a measurement device that can realize the multispectral photometric stereo method with seven colors is employed instead of the classic color photometric stereo method with three colors.
Maximum MMF reduction using the Newton Raphson method

This paper accompanies and complements a related companion paper [1]. Previous contributions have discussed the disturbing effects of space harmonics in induction motors, and several techniques to reduce or eliminate them have been proposed. Since these unwanted effects are produced by the stator winding, it is possible to eliminate or at least to significantly reduce some of the space harmonics, by changing the winding structure that is responsible for producing them. It is shown here that, by regarding the mmf waveform as a stepped function, this can be achieved by optimizing the slot positions and the number of conductors in the slots, using software designed for Matlab, and prepared using the Newton Raphson method. The conventional waveform is analyzed and optimized for convenient numbers of slots, and the necessary mathematical relationships are presented, together with equations for the chosen waveform, and a flow-chart for the associated software.
A Convenient Analytical Framework for Electromagnetic Scattering From Composite Targets

This paper furnishes a convenient theoretical framework for the analytical evaluation of the bistatic scattering coefficients, under the Kirchhoff approximation (KA) in electromagnetics. Starting from the KA, specific results under the geometrical optics and physical optics approximations are furnished, along with the backscattering geometry. The main aim is to provide closed‐form expressions of the scattering matrix that are suited to scenarios where multiple‐bounce scattering comes into play and/or surfaces with arbitrary unit normal are present. This is accomplished by addressing the following objectives: (1) to provide an explicit formulation of the scattering matrix under KA in terms of the incident and scattered unit wave vectors, (2) to provide a more generic derivation of the scattering matrix under the physical optics approximation by relaxing typical hypotheses regarding the geometry of the scattering problem, and (3) to highlight some important symmetries of the scattering matrix under KA. It is shown that the scattering matrix under KA can conveniently be expressed in terms of few variables, thus greatly reducing the complexity of the theoretical derivation of the scattering matrix. Some benefits of the proposed formalism are illustrated in two application examples, where the problem is the analysis of the electromagnetic scattering from canonical composite targets. The canonical study cases demonstrate the evaluation of the scattering matrix in complex scenarios, such as maritime and urban environments, where multiple‐bounce contributions and/or contributions from tilted surfaces come into play. Finally, comparisons with literature results allow for validating the proposed derivation and assessing its validity limits in practical applications.
Properties and Evaluation of the MOBIT – a novel Linkage-based Test Statistic and Quantification Method for Imprinting

Abstract Genomic imprinting is a parent-of-origin effect apparent in an appreciable number of human diseases. We have proposed the new imprinting test statistic MOBIT, which is based on MOD score analysis. We were interested in the properties of the MOBIT concerning its distribution under three hypotheses: (1) H0,a: no linkage, no imprinting; (2) H0,b: linkage, no imprinting; (3) H1: linkage and imprinting. More specifically, we assessed the confounding between imprinting and sex-specific recombination frequencies, which presents a major difficulty in linkage-based testing for imprinting, and evaluated the power of the test. To this end, we have performed a linkage simulation study of affected sib-pairs and a three-generation pedigree with two trait models, many two- and multipoint marker scenarios, three genetic map ratios, two sample sizes, and five imprinting degrees. We also investigated the ability of the MOBIT to quantify the degree of imprinting and applied the MOBIT using a real data example on house dust mite allergy. We further proposed and evaluated two approaches to obtain empiric p values for the MOBIT. Our results showed that twopoint analyses assuming a sex-averaged marker map led to an inflated type I error due to confounding, especially for a larger marker-trait locus distance. When the correct sex-specific marker map was assumed, twopoint analyses have a reduced power to detect imprinting, compared to sex-averaged analyses with an appropriate correction for the inflation of the test statistic. However, confounding was not an issue in multipoint analysis unless the map ratio was extreme and marker spacing was sparse. With multipoint analysis, power as well as the ability to quantify the imprinting degree were almost equally high when a sex-averaged or the correct sex-specific map was used in the analysis. We recommend to obtain empiric p values for the MOBIT using genotype simulations based on the best-fitting nonimprinting model of the real dataset analysis. In addition, an implementation of a method based on the permutation of parental sexes is also available. In summary, we propose to perform multipoint analyses using densely spaced markers to efficiently discover new imprinted loci and to reliably quantify the degree of imprinting.
Micro-Doppler Period Estimation Based on Concentration Statistics of Ambiguity Function

Radar micro-Doppler (m-D) signature, which reflects the micromotion dynamic and structural characteristics of radar target with micromotion, has received increasing attention. Most of the existing m-D signature-extraction methods operate in the time domain or the time-frequency domain. Different from these methods, in this paper, an m-D period estimation approach that operates in the ambiguity domain is proposed. Although the ambiguity function (AF) has been widely used in the field of radar signal processing, its application for m-D signal is introduced for the first time. It is proved that the AF of m-D signal exhibits periodicity along the lag axis and has the best concentration when the lag equals to multiples of the m-D period. Based on this, three AF concentration statistics are employed to capture the periodicity and to provide the m-D estimate. The most important property of the AF concentration statistics is that they are (or approximately) invariant to polynomial translations with terms not larger than second order even if the signal is Doppler ambiguous. Numeric simulation and real radar experiments are used to validate the effectiveness of the proposed technique.
Adaptive two-stage optimal designs for phase II clinical studies that allow early futility stopping

Abstract Adaptive designs play an important role in contemporary clinical trials to make designs flexible and efficient. In cancer clinical trials, given a relatively small sample size, it is important to obtain as much information as possible during this phase. We propose a new adaptive optimal design that stops for futility only in the first stage as Simon’s two-stage design. The existing adaptive two-stage designs are often allowed to be stopped for futility or efficacy due to computational advantage. It is difficult to search for an optimal design with futility stopping only in the first stage by using efficient search algorithms; for example, the branch-and-bound algorithm. We have to use multiple computational techniques to search for the optimal design. The proposed adaptive design meets the important property of the monotonic property that the second stage sample size is a nonincreasing function of the number of responses from the first stage. In this article, we show that the proposed adaptive design always has a smaller expected sample size than Simon’s optimal design. We recommend it for use in practice as an alternative to the commonly used Simon’s design.
A sharp Carathéodory's inequality on the right half plane

In this paper, a boundary version of Carath´eodory’s inequality on the right half plane is investigated. Here, the function Z ( s ) , is given as Z ( s ) = 1 + c 1 ( s − 1 )+ c 2 ( s − 1 ) 2 + . be an analytic in the right half plane with ℜ Z ( s ) (cid:2) A ( A > 1 ) for ℜ s (cid:3) 0. We derive inequalities for the modulus of Z ( s ) function, | Z (cid:2) ( 0 ) | , by assuming the Z ( s ) function is also analytic at the boundary point s = 0 on the imaginary axis and ﬁ nally, the sharpness of these inequalities is proved.
Analysis of the Fault Tolerance of a Switched Reluctance Machine with Distributed Inverter

This paper analyzes how distributed inverters can further increase the fault tolerance of switched reluctance traction drives. The drive under investigation is an outer-rotor direct-drive switched reluctance machines (SRM) for railway traction. The phases of SRMs are magnetically and to a certain extend electrically decoupled. Hence, in case of a fault inside a phase, the remaining phases can continue operation with reduced power. With the distributed inverter concept at hand, each coil of a phase is excited by its own modular inverter. This increases the redundancy, simplifies integration of machine and inverter, and enables a new degree of freedom regarding the control of the machine. Especially for electric drives used in railway traction or electric vehicles, redundancy avoids all the inconveniences of a standstill in case of a fault, enabling a so-called limp home capability. This paper shows, how open- and short-circuit faults of single coils or modules of the proposed drive influence average torque, torque ripple, and noise and vibration. Therewith, it will be shown that with the SRM and the distributed inverter it is possible to continue operation in case of the analyzed faults.
Robust Design of an Outer Rotor Permanent Magnet Motor Through Six-Sigma Methodology Using Response Surface Surrogate Model

There is always uncertainty in industrial manufacturing. These uncertainties have an undesirable impact on the products if deterministic optimization approaches are employed. In order to have products as desired, uncertainties must be quantified in the design process. This paper presents a robust design optimization of an outer rotor surface mounted permanent magnet motor with particular application in the hybrid vehicle using the design for six-sigma methodology. Due to very long computational time of robust optimization, a ten high-dimensional surrogate model of the system using the Box–Behnken response surface methodology (RSM) is integrated with the particle swarm optimization (PSO). This causes a significant improvement in the effectiveness and efficiency of optimization. The results acquired from RSM are verified by their simulation using the finite-element method, and the accuracy of RSM is proved. Finally, the deterministic and robust optimized motors are simulated in mass production using Monte Carlo analysis, and six-sigma quality achievements are demonstrated.
Distributed robust stabilization of networked multiagent systems with strict negative imaginary uncertainties

This paper deals with the distributed robust stabilization problem for networked multiagent systems with strict negative imaginary (SNI) uncertainties. Communication among agents in the network is modelled by an undirected graph with at least one self‐loop. A protocol based on relative state measurements of neighbouring agents and absolute state measurements of a subset of agents is considered. This paper shows how to design the protocol parameters such that the uncertain closed‐loop networked multiagent system is robustly stable against any SNI uncertainty within a certain set for various different network topologies. Tools from negative imaginary (NI) theory are used as an aid to simplify the problem and synthesise the protocol parameters. We show that a state, input, and output transformation preserves the NI property of the network. Consequently, a necessary and sufficient condition for the transfer function matrix of the nominal closed‐loop networked system to be NI and satisfy a DC gain condition is that multiple reduced‐order equivalent systems be NI and satisfy a DC gain condition simultaneously. Based on the reduced‐order systems, we derive sufficient conditions in an LMI framework which ensure the existence of a protocol satisfying the desired objectives. A numerical example is given to confirm the effectivenesses of the proposed results.
Noncyclic scheduling of dual-armed cluster tools for minimization of wafer residency time and makespan

Cluster tools are used for semiconductor wafer fabrication. A cluster tool consists of several loadlock modules, processing modules, and material handling armed robots to transfer wafers between loadlocks and processing modules. Most conventional scheduling methods consider a cyclic schedule to minimize makespan. We consider noncyclic scheduling of dual-armed cluster tools. In practice, it is important to minimize wafer residency time in processing modules to maintain the surface quality of wafers. In the noncyclic operations, the cluster tool causes deadlock which may lead to excessive loss in the wafer fabrication process. We propose an efficient deadlock-free scheduling method for the noncyclic scheduling problem of a dual-armed cluster tool to minimize the residency time and makespan. The proposed method is applied to a dual-armed cluster tool with a non-revisiting process and a revisiting process. Computational results demonstrate the effectiveness of the proposed method.
Étude de la dissociation des hydrocarbures aromatiques polycycliques dans un contexte astrophysique

Les hydrocarbures polycycliques aromatiques (PAH en anglais) sont mis en evidence dans les milieux astrophysiques par des bandes caracteristiques dans l’infrarouge, bandes qui sont emises suite a l’excitation de ces molecules par les photons ultraviolets (VUV pour ultraviolet du vide) emis par les etoiles massives. Cette interaction avec le rayonnement influe sur la charge et la stabilite de ces PAH ainsi que sur les mecanismes de dissociation mis en jeu. Ceci affecte, en retour, l’energetique et la chimie du gaz interstellaire. En particulier, les PAH pourraient contribuer a la formation de la molecule la plus abondante, H2, dans les regions de photodissociation (PDR). Ce travail apporte une contribution a ce sujet en quantifiant l’interaction du rayonnement VUV avec des PAH de taille moyenne grâce a des etudes experimentales et des simulations numeriques. Les resultats experimentaux ont ete obtenus lors de deux campagnes utilisant le rayonnement synchrotron. D’une part, des mesures de spectroscopie d’action dans un piege a ions quadripolaire nous ont permis d’obtenir les rendements d’ionisation et de fragmentation ainsi que les rapports de branchement entre les differents fragments. D’autre part, des experiences d’imagerie de photoelectrons-photoions en coincidence (iPEPICO) nous ont permis d’obtenir des courbes de fragmentation et des taux de dissociation par ajustement de ces courbes avec un modele statistique (RRKM). Pour l’etude detaillee des processus de fragmentation, nous nous sommes focalises sur le cas de deux isomeres du cation de dibenzopyrene (C24H14+) afin d’evaluer l’impact de la structure sur ces processus. Nous avons pu rationaliser les tendances experimentales observees grâce aux calculs utilisant la theorie de la fonctionnelle de la densite et des simulations intensives de dynamique moleculaire. Les resultats ont permis de montrer l’importance de la structure et de la non-planeite dans l’energetique des reactions et les chemins de dissociation. Ce travail apporte des donnees moleculaires significatives pour decrire l’evolution chimique des PAH dans les modeles astrophysiques. Ceci inclut la premiere mesure du rendement d’ionisation pour des PAH cations de taille moyenne ainsi que la determination de plusieurs taux de dissociation de ces especes en fonction de l’energie interne. Nous presentons aussi un nouveau mecanisme qui pourra etre considere dans l’evaluation de la contribution des PAH a la formation de H2 dans les PDR. Ce mecanisme qui implique des regions de type « baie », devra etre etudie sur un echantillon plus grand de PAH.
Automatic Identification and Classification of Software Development Video Tutorial Fragments

Software development video tutorials have seen a steep increase in popularity in recent years. Their main advantage is that they thoroughly illustrate how certain technologies, programming languages, etc. are to be used. However, they come with a caveat: there is currently little support for searching and browsing their content. This makes it difficult to quickly find the useful parts in a longer video, as the only options are watching the entire video, leading to wasted time, or fast-forwarding through it, leading to missed information. We present an approach to mine video tutorials found on the web and enable developers to query their contents as opposed to just their metadata. The video tutorials are processed and split into coherent fragments, such that only relevant fragments are returned in response to a query. Moreover, fragments are automatically classified according to their purpose, such as introducing theoretical concepts, explaining code implementation steps, or dealing with errors. This allows developers to set filters in their search to target a specific type of video fragment they are interested in. In addition, the video fragments in CodeTube are complemented with information from other sources, such as Stack Overflow discussions, giving more context and useful information for understanding the concepts.