Miracle-dz/UniFAR-FTUs huggingface dataset:
A Lyapunov matrix based stability criterion for a class of time-delay systems

This paper is devoted to the stability analysis of linear time-invariant systems with multiple delays. First, we recover some basic elements of our research. Namely, we introduce the complete type functionals, the delay Lyapunov matrix, and a space of special functions that allow to present a family of necessary stability conditions. Then, we prove a suﬃcient stability condition (instability condition) in terms of a quadratic Lyapunov—Krasovskii functional. Summarizing these results, we ﬁnally obtain an exponential stability criterion for a class of linear time-delay systems. The criterion requires only a ﬁnite number of mathematical operations to be tested and depends uniquely on the delay Lyapunov matrix. Refs 15.
THE USE OF N400 IN STUDIES OF STIMULUS EQUIVALENCE: A REVIEW OF METHODS AND PARAMETERS

The N400 is defined as an event-related brain potential that is sensitive to the semantic relations between stimuli. For instance, when a pair of words belong to the same semantic domain (e.g., monkey-banana), the N400 will be significantly reduced in comparison to the N400 evoked by unrelated words (e.g., monkey-carburetor). Notably, the N400 responses are also sensitive to the arbitrary stimulus-stimulus relations formed by matching-to-sample procedures (MTS), supporting the notion that stimulus equivalence is a behavioristic model of semantic relations. In this study, we presented a methodological review of studies on stimulus equivalence that used the N400 as dependent measure of “equivalent” and “non-equivalent” stimulus-stimulus relations formed by MTS procedures. First, we searched on databases for studies that used the descriptive terms “equivalence relations”, “matching-to-sample”, “MTS”, “N400”, “relational learning”, and “derived relations” on the title and the abstract. Then, we categorized the number of experiments in each study, population, nature of stimuli, the event-related brain potential used as a dependent measure and whether the critical probes comprised baseline, reflexive, symmetric or transitive relations. We found that the MTS variables differed substantially from one study to another. Considering that most of these MTS variables may be critical to the establishment of stimulus equivalence, we encourage follow-up studies that aim at verifying whether and to what extent they can be related to the N400 outcomes. Key-words : Matching-to-sample, equivalence-relatedness-based-procedure, stimulus equivalence, N400, semantic relations, methodological review.
Latent Variable Interactions and Quadratics

There is no published guidance for using the same data set in more than one theory-test paper. Reusing data may reduce the “time-to-publication” for a second paper and conserve funds as the “clock ticks” for an untenured faculty member. Anecdotally however, there are reviewers who may reject a theory-test paper that admits to reusing data. The paper critically discusses this matter, and provides suggestions.
Reinventing the wheel: excitation of flow instabilities for active flow control using plasma actuators

Flow control is typically used to manipulate a flow’s natural behavior to alter its effects on a vehicle or system. When active flow control (AFC) is used in aerospace applications, the actuation can be turned on/off or adapted to changing flight conditions. AFC techniques in which significant gains can be achieved with relatively small cost are most beneficial and are the subject of this paper. Flows with the Kelvin–Helmholtz (K–H) instability, which are present in many aerospace applications, are amenable to AFC and have been the subject of research for over five decades. The K–H instability can amplify any natural or artificially-seeded thermal, acoustic, or hydrodynamic perturbations over a wide range of frequencies. These perturbations can grow and eventually roll up into large-scale flow structures, which, in turn, can dominate important processes such as entrainment, mixing, momentum and heat trasport, and aeroacoustic noise. However, the application of active flow control was limited to low-speed flows in the earlier decades of study due to the shortcomings of the available actuators. The recent development of plasma actuators, capable of producing simultaneously high-amplitude and high-bandwidth thermal perturbations, has extended the AFC applications to high-speed and high-Reynolds number flows of interest in aerospace, hence the title: reinventing the wheel. In this paper, two classes of such plasma actuators, namely localized arc filament plasma actuators and nanosecond dielectric-barrier discharge plasma actuators, are briefly discussed and their applications in two very different flows are presented to highlight the advances made in the community in the use of plasma actuators for aerospace applications. In addition, there is a discussion of further advances that must be made in the development of these actuators to move the techniques from laboratory to in-flight use.
Performance Measure of a New One-Step Numerical Technique via Interpolating Function for the Solution of Initial Value Problem of First Order Differential Equation

This paper presents the development of a new one-step numerical technique for the solution of initial value problems of first order differential equations by means of the interpolating function. The interpolating function used in this paper consists of both polynomial and exponential functions. Numerical experiments were performed to determine the efficiency and robustness of the scheme. The results show that the scheme is computationally efficient, robust and compares favourably with exact solutions.
Study of iron impurity behaviour in the ADITYA tokamak

Iron (Fe) impurity behaviour in ADITYA tokamak plasma has been studied using Fe spectral line emissions in the vacuum ultra violet (VUV) wavelength range. A VUV survey spectrometer has been utilized to record spectral lines at 28.41 nm from Fe14+ , and 33.54 nm and 36.08 nm from Fe15+ . It has been observed that the intensities of the Fe emissions decrease with an increase in plasma electron density. The observed emission and the intensity ratio of Fe14+ and Fe15+ ions from two discharges having relatively low and high plasma density are modelled using an impurity transport code. It is found that the observed data could be modelled using the same ratio of the convective velocity to the diffusion coefficient D profile, but with two different Fe concentrations. The ratio varies from the value of − 0.22 m−1 at the plasma normalized radius to a maximum value of − 0.35 m−1 at . The obtained diffusion coefficient value at the plasma core region is explained in terms of neo-classical transport, indicating that Fe impurity transport follows the same behaviour in the core plasma of the ADITYA tokamak.
PROBING THE LOW-X GLUON HELICITY DISTRIBUTION WITH DIJET DOUBLE SPIN ASYMMETRIES IN POLARIZED PROTON COLLISIONS AT √S = 510 GEV

OF DISSERTATION PROBING THE LOW-X GLUON HELICITY DISTRIBUTION WITH DIJET DOUBLE SPIN ASYMMETRIES IN POLARIZED PROTON COLLISIONS AT √ S = 510 GEV The proton is a complex subatomic particle consisting of quarks and gluons, and one of the key questions in nuclear physics is how the spin of the proton is distributed amongst its constituents. Polarized deep inelastic scattering experiments with leptons and protons estimate that the quark spin contribution is approximately 30%. The limited kinematic reach of these experiments, combined with the fact that they are only indirectly sensitive to the electrically neutral gluon, means they can provide very little information about the gluon contribution to the spin of the proton. In contrast, hadronic probes, such as polarized proton collisions provide direct access to the gluon helicity distribution. The production of jets in polarized proton collisions at STAR is dominated by quark-gluon and gluon-gluon scattering processes. The dijet longitudinal double spin asymmetry (ALL) is sensitive to the polarized parton distributions and may be used to extract information about the gluon contribution to the spin of the proton. Previous STAR jet measurements at √ s = 200 GeV show evidence of polarized gluons for gluon momentum fractions above 0.05. The measurement of dijet ALL at √ s = 510 GeV will extend the current constraints on the gluon helicity distribution to low momentum fractions and allow for the reconstruction of the partonic kinematics. Information about the initial state momentum provides unique constraints on the functional form of the gluon helicity distribution, thus reducing the uncertainty on extrapolations to poorly constrained regions. This thesis will present the first measurement of the dijet ALL at √ s = 510 GeV, from polarized proton data taken during the 2012 RHIC run.
Experimental and diagnostic protocol for the physical component of the CMIP6 Ocean Model Intercomparison Project (OMIP)

The Ocean Model Intercomparison Project (OMIP) aims to provide a framework for evaluating, understanding, and improving the ocean and sea-ice components of global climate and earth system models contributing to the Coupled Model Intercomparison Project Phase 6 (CMIP6). OMIP addresses these aims in two complementary manners: (A) by providing an experimental protocol for global ocean/sea-ice models run with a prescribed atmospheric forcing, (B) by providing a protocol for ocean diagnostics to be saved as part of CMIP6. We focus here on the physical component of OMIP, with a companion paper (Orr et al., 2016) offering details for the inert chemistry and interactive biogeochemistry. The physical portion of the OMIP experimental protocol follows that of the interannual Coordinated Ocean-ice Reference Experiments (CORE-II). Since 2009, CORE-I (Normal Year Forcing) and CORE-II have become the standard method to evaluate global ocean/sea-ice simulations and to examine mechanisms for forced ocean climate variability. The OMIP diagnostic protocol is relevant for any ocean model component of CMIP6, including the DECK (Diagnostic, Evaluation and Characterization of Klima experiments), historical simulations, FAFMIP (Flux Anomaly Forced MIP), C4MIP (Coupled Carbon Cycle Climate MIP), DAMIP (Detection and Attribution MIP), DCPP (Decadal Climate Prediction Project), ScenarioMIP (Scenario MIP), as well as the ocean-sea ice OMIP simulations. The bulk of this paper offers scientific rationale for saving these diagnostics.
Influence of Pruning Intensity on Yield and Quality of Nectarine Peach

A study was conducted to improve fruit yield and quality in nectarine through pruning. Six-year old plants of two cultivars, Silver King and Snow Queen, were given nine different pruning treatments, with three replications, in Complete Randomized Block Design. Results showed that on increasing pruning intensity, fruit yield decreased, while quality of the fruits improved. Best quality fruits in terms of fruit weight and pulp:stone ratio were obtained with 60% thinning-out + 3/4 heading-back, while, maximum fruit surface colour and total soluble solids (TSS) were recorded with 40% thinning-out + 3/4 heading-back. Highest acidity in fruits was recorded with 20% thinning-out + 1/4 heading-back. Among the two cultivars, 'Silver King' exhibited better fruit quality than 'Snow Queen'.
Book Review: Language. An Introduction to the study of Speech

All Access to Language An Introduction To The Study Of Speech Edward Sapir PDF. Free Download Language An Introduction To The Study Of Speech Edward Sapir PDF or Read Language An Introduction To The Study Of Speech Edward Sapir PDF on The Most Popular Online PDFLAB. Only Register an Account to DownloadLanguage An Introduction To The Study Of Speech Edward Sapir PDF. Online PDF Related to Language An Introduction To The Study Of Speech Edward Sapir. Get Access Language An Introduction To The Study Of Speech Edward SapirPDF and Download Language An Introduction To The Study Of Speech Edward Sapir PDF for Free.
Multiphysics Model of an MR Damper including Magnetic Hysteresis

Hysteresis is one of key factors influencing the output of magnetorheological (MR) actuators. The actuators reveal two primary sources of hysteresis. The hydro(mechanical) hysteresis can be related to flow dynamics mechanisms and is frequency- or rate-dependent. For comparison, the magnetic hysteresis is an inherent property of ferromagnetic materials forming the magnetic circuit of the actuators. The need for a good quality hysteresis model has been early recognized in studies on MR actuators; however, few studies have provided models which could be used in the design stage. In the paper we reveal a hybrid multiphysics model of a flow-mode MR actuator which could be used for that purpose. The model relies on the information which can be extracted primarily from material datasheets and engineering drawings. We reveal key details of the model and then verify it against measured data. Finally, we employ it in a parameter sensitivity study to examine the influence of magnetic hysteresis and other relevant factors on the output of the actuator.
Pengaruh Struktur Modal dan Pertumbuhan Perusahaan Terhadap Profitabilitas dan Nilai Perusahaan

Penelitian ini bertujuan untuk menguji pengaruh struktur modal dan pertumbuhan perusahaan terhadap profitabilitas dan nilai perusahaan. Jumlah populasi dan sampel sebanyak 167 perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia. Teknik analisis data dalam penelitian ini menggunakan analisis regresi berganda (multiple regression) dan diperluas dengan analisis jalur (path analysis). Hasil penelitian ini menemukan variabel struktur modal berpengaruh negatif dan signifikan terhadap profitabilitas dan berpengaruh positif terhadap nilai perusahaan. Variabel pertumbuhan perusahaan berpengaruh positif dan signifikan terhadap profitabilitas dan nilai perusahaan. Variabel profitabilitas berpengaruh positif dan signifikan terhadap nilai perusahaan. Variabel Struktur modal dan pertumbuhan perusahaan berpengaruh positif dan signifikan melalui profitabilitas terhadap nilai perusahaan pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia tahun 2014-2017.
Evaluation of AMSR-E Thin Ice Thickness Algorithm from a Mooring-Based Observation: How Can the Satellite Observe a Sea Ice Field with Nonuniform Thickness Distribution?

The quantification of sea ice production in coastal polynyas is a key issue to understand the global climate system. In this study, we directly compared Advanced Microwave Scanning Radiometer-EOS (AMSR-E) data with the sea ice thickness distribution obtained from a mooring observation during the winter of 2003 off Sakhalin in the Sea of Okhotsk to evaluate the algorithm for estimation of sea ice thickness in coastal polynyas. By using thermal ice thickness as a target physical quantity, we found that the obtained relationship between the polarization ratio (PR) and ice thickness can provide an appropriate AMSR-E algorithm to estimate thin ice thickness, irrespective of the uniform or nonuniform ice thickness field. The relationship between the PR value and thermal ice thickness is likewise consistent with the local PR–thickness relationship that is observed at individual ice floes. This is because both the PR value and thermal ice thickness are more sensitive to thinner ice. Furthermore, we evaluated the method for detection of active frazil in a coastal polynya by comparing with the mooring data, and subsequently modified it to classify the coastal polynya into three thin ice types, namely, active frazil, thin solid ice, and mixed ice (mixture of active frazil and thin solid ice). The improved algorithm successfully represents the thermal ice thickness even for a relatively small-scale polynya off Sakhalin and is expected to be useful for better quantification of sea ice production in the global ocean owing to its high versatility.
Computer-Aided Understanding of Perturbations in Soft Matter Systems

This dissertation aims to advance the fundamental knowledge on the structure and dynamics of condensed matter, focusing on systems relevant to emerging problems in biotechnology and energy. We aim to do this using tools and techniques derived from statistical mechanics with the aid of computer simulations, and when appropriate, combined with principles from experimental science. In the first part, we study the effects of solution composition on the electrochemical response of a double layer capacitor using electrical impedance spectroscopy measurements and molecular dynamics simulations in a constant potential ensemble. We find that capacitance first increases with ion concentration following its expected ideal solution behavior but decreases upon approaching the pure ionic liquid limit. In the second part, we use atomistic replica-exchange molecular dynamics simulations and thermodynamic analysis to investigate the effects of ionic liquid-induced perturbations on the folding/unfolding thermodynamics of the Trp-cage miniprotein, and compare our findings to circular dichroism measurements. We find that ionic liquid-induced denaturation resembles cold unfolding, where unfolded states are populated by compact, partially folded structures in which elements of the secondary structure are conserved, while the tertiary structure is disrupted. In the third part, we perform a fully atomistic computational study of Trp-cage in explicit water, and construct the complete stability diagram in the (P ,T ) plane. At ambient temperature, we find that application of pressure shifts the equilibrium of conformational states towards denaturation. Below 250K, the stability of the native fold depends non-monotonically upon pressure. Our simulations also show while cold unfolding and thermal denaturation mechanisms differ significantly at ambient pressure, they exhibit progressive similarity at elevated pressures. In the final part, we consider three commonly used molecular water models (ST2, TIP4P/2005, and TIP5P) that support the existence of the metastable liquid-liquid iii transition. We demonstrate that a corresponding-states-like rescaling of pressure and temperature results in a significant degree of universality in the pattern of thermodynamic response function extrema. We also report an intriguing correlation between the location of the liquid-liquid critical point, the density extrema locus, and the liquid-vapor stability limit, and demonstrate a similar correlation for two theoretical models.
INTERVAL ESTIMATION FOR THE DIFFERENCE OF TWO INDEPENDENT NONNORMAL POPULATION VARIANCES

This study focuses on interval estimation with sample variance estimators based on Winsorized Mean and Trimmed Mean for the difference of the variances of two nonnormal populations. In the simulation study, confidence intervals based on these estimators for the difference of the variances of two non-normally distributed populations were compared in terms of coverage probabilities and average length widths. According to simulation study, it was determined that the coverage probabilities of confidence intervals obtained with estimators based on both Winsorized and Trimmed means were very close to the nominal confidence level in any case. However, it was seen that the average length widths of confidence intervals obtained with sample variance estimator based on Trimmed Mean were narrower compared to the average length widths of confidence intervals obtained with sample variance estimator based on Winsorized Mean. In addition, it was determined that these results were the same when the Type I error is different. According to these results, it will be appropriate to prefer interval estimations obtained with sample variance estimator based on Trimmed Mean since it provides narrower confidence interval for the difference of the variances of two nonnormal populations.
The reduction of discomfort glare from windows by interesting views.

Discomfort glare is the annoyance, or temporary discomfort produced by luminance (brightness) within the visual field that is sufficiently greater than the luminance to which the eyes are adapted. Both small and large source glare formulae are often poor predictors of the subjective assessment of discomfort glare and, in particular, Hopkinson's daylight glare formula. This suggests that window glare depends on more factors than the four embodied in the glare calculation: source luminance, source size, surround luminance and a position index. Several studies have suggested that interest in the glare source may reduce discomfort glare in various cases. This thesis investigated a general hypothesis that an increase in interest in a glare source is associated with a decrease in discomfort glare. The investigations were performed in two main parts aiming to test the effect of interest in two cases of glare sources, a small projected screen image and a window. Indeed, a main focus of the thesis was to explore the effect of interest in the case of a window with a hypothesis that an increase in interest in a view is associated with a decrease in discomfort glare from windows. However, due to difficulty in settings and revealing the observed effect in real daylighting situations, this thesis began to see the effect of interest in the case of a small projected screen image under a highly controlled laboratory with a hypothesis that an increase in image interest is associated with a decrease in discomfort glare. The findings of this thesis tended to support the general hypothesis. It has been found that an increase in interest in a glare source is associated with a decrease in the glare discomfort, both for a small projected screen image and a window. In addition to the interest effects, significant effects of the glare source luminance variations (RML) and some characteristics and contents in a glare source were also found in both cases of glare sources.
Race Walking Ground Reaction Forces at Increasing Speeds: A Comparison with Walking and Running

Race walking has been theoretically described as a walking gait in which no flight time is allowed and high travelling speed, comparable to running (3.6–4.2 m s−1), is achieved. The aim of this study was to mechanically understand such a “hybrid gait” by analysing the ground reaction forces (GRFs) generated in a wide range of race walking speeds, while comparing them to running and walking. Fifteen athletes race-walked on an instrumented walkway (4 m) and three-dimensional GRFs were recorded at 1000 Hz. Subjects were asked to performed three self-selected speeds corresponding to a low, medium and high speed. Peak forces increased with speeds and medio-lateral and braking peaks were higher than in walking and running, whereas the vertical peaks were higher than walking but lower than running. Vertical GRF traces showed two characteristic patterns: one resembling the “M-shape” of walking and the second characterised by a first peak and a subsequent plateau. These different patterns were not related to the athletes’ performance level. The analysis of the body centre of mass trajectory, which reaches its vertical minimum at mid-stance, showed that race walking should be considered a bouncing gait regardless of the presence or absence of a flight phase.