Miracle-dz/UniFAR-FTUs huggingface dataset:
A one-sided studentized range test for testing against a simple ordered alternative

Abstract Consider the usual balanced one-way fixed effects analysis of variance (ANOVA) model X ij = μ i + e ij (1 ≤ j ≤ n; 1 ≤ i ≤ k), where the e ij are independent N(0, [sgrave]2) random variables and μ i is the mean of the ith treatment (1 ≤ i ≤ k). The μ i and [sgrave] 2 are unknown parameters. Let X i be the sample mean of the ith treatment based on n observations (1 ≤ i ≤ k), and let S 2 be an unbiased estimate of [sgrave]2, which is distributed independently of the X i as a σ2 χ 2 v /v random variable. Usually, the ANOVA mean squared error with v = k(n − 1) df is used as the estimate S 2. A problem that has received considerable attention is that of testing the null hypothesis H 0 : μ 1, = … = μ k against the simple ordered alternative hypothesis H A : μ 1 ≤ … ≤ μ k with at least one strict inequality [see, e.g., Barlow, Bartholomew, Bremner, and Brunk (1972) and Robertson, Wright, and Dykstra (1988)]. Various test procedures have been proposed for this problem, such as the likelihood ratio test (.
The neutral hydrogen properties of galaxies in gas-rich groups

We present an analysis of the integrated neutral hydrogen (H i) properties for 27 galaxies within nine low-mass, gas-rich, late-type dominated groups which we denote 'Choirs'. We find that majority of the central Choir galaxies have average H i content: they have a normal gas-mass fraction with respect to isolated galaxies of the same stellar mass. In contrast, we find more satellite galaxies with a lower gas-mass fraction than isolated galaxies of the same stellar mass. A likely reason for the lower gas content in these galaxies is tidal stripping. Both the specific star formation rate and the star formation efficiency of the central group galaxies are similar to galaxies in isolation. The Choir satellite galaxies have similar specific star formation rate as galaxies in isolation, therefore satellites that exhibit a higher star formation efficiency simply owe it to their lower gas-mass fractions. We find that the most H i massive galaxies have the largest H i discs and fall neatly on to the H i size-mass relation, while outliers are galaxies that are experiencing interactions. We find that high specific angular momentum could be a reason for galaxies to retain the large fraction of H i gas in their discs. This shows that for the Choir groups with no evidence of interactions, as well as those with traces of minor mergers, the internal galaxy properties dominate over the effects of residing in a group. The probed galaxy properties strengthen evidence that the Choir groups represent the early stages of group assembly.
Precise determination of reliable work function in according to the definition from photoelectric effect

The strategy of using the definition of work function from photoelectric effect to determine precise and reliable work function by the contribution of frequency to photoelectric yield is investigated theoretically in this paper. Based on the Fermi-Dirac distribution and the definition of work function proposed by Einstein in photoelectric effect, a typical numerical method is pursed step by step to quantitatively analyze the frequency-dependent photoelectric yield. Supplementing applications to In14 cluster and three kinds of metals, the simulations agree well with the observed spectra (photoelectric yield-frequency). At the same time, the threshold frequency of light-dependent the work function is theoretically explained successfully via one equation so that the work function can be predicted precisely and reliably. These results suggest that the formalism pursed in this paper, which is straight forward and physical, may be of significant utility in metal cluster spectroscopy. It is hoped also that the results will encourage a comprehensive theoretical analysis of the applicability of bulk-derived models to cluster photo-ionization behavior, and of the transition from atomic and molecular-type to surface-type photoemission.
Inferences for a Two-parameter Lifetime Distribution with Bathtub Shaped Hazard Based on Censored Data

We consider statistical inference of the unknown parameters of a two-parameter bathtub-shaped distribution (Chen, 2000) [Stat. & Prob. Letters 49 (2000) 155-161]. The inference will be conducted for Type-II censored and progressively Type-II censored data using the maximum likelihood and Bayes techniques. There are no explicit expressions for the estimators of the parameters. In the case of the maximum likelihood estimator (MLE), we propose a simple fixed point algorithmto compute the MLE and construct different confidence intervals and confidence regions of the unknown parameters. Bayes analyses of the unknown parameters are also discussed under fairly general priors for the unknown parameters.We propose to use the Markov Chain Monte Carlo (MCMC) and simulation-based technique to compute the Bayes estimates and the two-sided Bayesian probability intervals of the parameters. Also, we use the rejection sampling algorithm to produce the exact Bayes estimates. The methods developed will be applied in the analyses of two real data sets and a simulated data set. A Monte Carlo simulation is used to compare the results from the MLE and Bayes techniques.
Galaxy Groups in the Third Data Release of the Sloan Digital Sky Survey

We present a new sample of galaxy groups identified in the Sloan Digital Sky Survey Data Release 3. Following previous works, we use the well-tested friends-of-friends algorithm developed by Huchra and Geller, which takes into account the number density variation due to the apparent magnitude limit of the galaxy catalog. To improve the identification, we implement a procedure to avoid the artificial merging of small systems in high-density regions and then apply an iterative method to recompute the group centers position. As a result, we obtain a new catalog with 10,864 galaxy groups with at least four members. The final group sample has a mean redshift of 0.1 and a median velocity dispersion of 230 km s-1.
Quantum simulation of a frustrated Heisenberg spin system

Quantum simulators are capable of calculating properties of quantum systems unfeasible for classical computers. Here we report the analog quantum simulation of arbitrary Heisenberg-type interactions among four spin-1/2 particles. This spin-1/2 tetramer is the two-dimensional archetype system whose ground state belongs to the class of valence-bond states. Depending on the interaction strength, frustration within the system emerges such that the ground state evolves from a localized to a resonating valence-bond state. This spin-1/2 tetramer is created using the polarization states of four photons. We utilize the particular advantages of the precise single-particle addressability and a tunable measurement-induced interaction to obtain fundamental insights into entanglement dynamics among individual particles. We also directly extract ground-state energies and pair-wise quantum correlations, which enable our quantum simulator to investigate the frustration of entanglement. Remarkably, the pair-wise correlations are restricted by quantum monogamy.
Evidence against Klein paradox in graphene

It is demonstrated that both transmission and reflection coefficients associated with the Klein paradox at a step barrier are positive and less than unity, so that the particle-antiparticle pair creation mechanism commonly linked to this phenomenon is not necessary. Because graphene is a solid-state testing ground for quantum electrodynamics phenomena involving massless Dirac fermions, we suggest that the transport characteristic through a p–n graphene junction can decide between the results obtained in this paper and the common Klein paradox theory, which imply negative transmission and higher-than-unity reflection coefficients. Recent experimental evidence supports our findings.
Experimental results from hydrogen/deuterium distillations at the Tritium Systems Test Assembly

Fundamental operating parameters and column performance have been measured on the interlinked, four-column cryogenic distillation system at the Tritium Systems Test Assembly. Using mixtures of hydrogen and deuterium, data have been gathered and are given here on liquid holdup in the column packing and liquid level in reboilers (factors important to isotope inventory), pressure drop in the column packing, and product purity. Both Raman spectroscopy and gas chromatography were used for product analysis.
The Relationship Between Corporate Social Responsibility and Customer Loyalty

This study was conducted to investigate the relationship between corporate social responsibility and customers’ loyalty. The study first reviewed previous research and developed hypotheses related to the research survey data sets collected through qualitative research with questionaires answered by 386 consumers of Grab holding inc, Data were collected via internet questionnaires. Structural Equation modeling (SEM) was used to test the study hypotheses. The findings from the study indicated that customer and envirnment oriented CSR had a significant positive effect on behavioral loyalty and attitude loyalty. Employees and community oriented CSR had a significant positive effect behavioral loyalty, while the attitude loyalty had a significant positive effect behavioral loyalty. Based on the study’s empirical analysis, some implications were proposed to help enterprises on how to CSR activities in order for them to enhance their customer’s loyalty.
Two- and three-terminal far-from-equilibrium thermoelectric nano-devices in the Kondo regime

This paper analyses the thermoelectric power of two- and three-terminal quantum dot devices under large thermal ΔT and voltage V biases, and their performance as thermoelectric heat engines. The focus is on the interaction between electrons, far-from-equilibrium conditions, and strongly nonlinear transport, which all are important factors affecting the usefulness of the devices. To properly characterise the thermoelectric properties under such conditions, two different Seebeck coefficients are introduced, generalizing the linear response expression. In agreement with previous work, we find that the efficiency of the three-terminal thermoelectric heat engine, as measured by the delivered power, is optimal far from equilibrium. Moreover, strong Coulomb interactions between electrons on the quantum dot are found to diminish the efficiency at maximum power, and the maximal value of the delivered power, both in the Kondo regime and beyond.
IDENTIFICATION OF USER USING ECG SIGNALS

: Biometric authentication is used in various fields such as to unlock phones, to access bank accounts using voice recognition, to write online exams using face recognition etc. The electrocardiogram (ECG) signals can also be used as biometric to identify the user. Because the ECG signals are unique for individuals and represent the liveliness of a person.This project provides a system to identify the user based on ECG signals. This project involves processing of signals, training with Siamese Networks, and finally identifying people using trained Siamese Networks models. In this project, ECG-ID dataset which is obtained from Physionet website, is used to train the Siamese Networks in order to identify individual users. ECG-ID dataset has raw electrocardiogram signals of 90 persons. The accuracy is calculated for the Siamese Networks model, which is around 80 percent. The results from this work can support the statement that ECG signals can be used as biometric.
Reconfiguration of charge density waves by surface nanostructures on TaS 2

The transition metal dichalcogenide $1T\ensuremath{-}{\mathrm{TaS}}_{2}$ forms charge density waves due to the quasi-two-dimensionality of its electronic structure. Here we show how the growth of Rb nanowires on the surface of $1T\ensuremath{-}{\mathrm{TaS}}_{2}$ affects the superstructure of the charge density waves. Scanning tunneling microscopy and low-energy electron diffraction studies show the replacement of the normal ${\mathrm{TaS}}_{2}$ room temperature $\sqrt{13}\ifmmode\times\else\texttimes\fi{}\sqrt{13}$ phase by $c(2\sqrt{3}\ifmmode\times\else\texttimes\fi{}4)\mathrm{rect}. $ and $3\ifmmode\times\else\texttimes\fi{}3$ superstructures depending on the state of nanowire growth. Furthermore, angle resolved photoemission studies give evidence for a metal to semiconductor transition when the superstructure of the charge density wave is changed. These changes are discussed in the context of nanowire growth, which is accompanied by a change in the dimensionality of the electronic states of $1T\ensuremath{-}{\mathrm{TaS}}_{2}. $
A survey of the Galactic plane for dispersed radio pulses with the Australian Square Kilometre Array Pathfinder

We report the results from a survey of the Galactic plane for dispersed single pulses using the Australian SKA Pathfinder (ASKAP). We searched for rare bright dispersed radio pulses comprising 160 pointings covering 4800 deg$^2$ of the Galactic plane within |b| $< 7 °$, each pointing with an exposure time of 10 hours. We detected one fast radio burst, FRB 180430, and single pulses from 11 pulsars. No rotating radio transients were detected. We detected FRB 180430 in the Galactic plane in the anticentre direction with a fluence of 216$\pm5$Jy ms a dispersion measure (DM) of 264.1 pc cm-3. We estimate the extragalactic DM of the object to be less than 86.7 $ \text{pc} \ \text{cm}^{-3} $ depending on the electron density model. One model suggests that this FRB may be a giant pulse within our galaxy; we discuss how this may not correctly represent the line-of-sight DM. Based on the single detection of FRB 180430 in 3.47 $\times 10^{4}$ deg$^2$ h we derive a FRB event rate in the Galactic plane at the 20 Jy ms threshold to be in the range 2-140 per sky per day at 95% confidence. Despite the necessarily large uncertainties from this single detection, this is consistent with the current ASKAP all-sky detection rate.
Glasses, replicas and all that

In these lectures I will review the approach to glasses based on the replica formalism. Many of the physical ideas are very similar to those of older approaches. The replica approach has the advantage of describing in an unified setting both the behaviour near the dynamic transition (mode coupling transition) and near the equilibrium transition (Kauzman transition) that is present in fragile glasses. The replica method may be used to solve simple mean field models, providing explicit examples of systems that may be studied analytically in great details and behave similarly to the experiments. Finally, using the replica formalism, it is possible to do analytic explicit computations of the properties of realistic models of glasses and the results are in reasonable agreement with numerical simulations.
The Bright SHARC Survey: The Cluster Catalog

We present the Bright SHARC (Serendipitous High-Redshift Archival ROSAT Cluster) Survey, which is an objective search for serendipitously detected extended X-ray sources in 460 deep ROSAT PSPC pointings. The Bright SHARC Survey covers an area of 178.6 deg2 and has yielded 374 extended sources. We discuss the X-ray data reduction, the candidate selection and present results from our on-going optical follow-up campaign. The optical follow-up concentrates on the brightest 94 of the 374 extended sources and is now 97% complete. We have identified 37 clusters of galaxies, for which we present redshifts and luminosities. The clusters span a redshift range of 0.0696 < z < 0.83 and a luminosity range of 0.065 < LX < 8.3 × 1044 ergs s-1 [0.5-2.0 keV] (assuming H0 = 50 km s-1 Mpc-1 and q0 = 0.5). Twelve of the clusters have redshifts greater than z = 0.3, eight of which are at luminosities brighter than LX = 3 × 1044 ergs s-1. Seventeen of the 37 optically confirmed Bright SHARC clusters have not been listed in any previously published catalog. We also report the discovery of three candidate "fossil groups" of the kind proposed by Ponman et al.
On the Relation of Silicates and SiO Maser in Evolved Stars

The SiO molecule is one of the candidates for the seed of silicate dust in the circumstellar envelope of evolved stars, but this opinion is challenged. In this work we investigate the relation of the SiO maser emission power and the silicate dust emission power. With both our own observation by using the PMO/Delingha 13.7 m telescope and archive data, a sample is assembled of 21 SiO v = 1, J = 2 − 1 sources and 28 SiO v = 1, J = 1 − 0 sources that exhibit silicate emission features in the ISO/SWS spectrum as well. The analysis of their SiO maser and silicate emission power indicates a clear correlation, which is not against the hypothesis that the SiO molecules are the seed nuclei of silicate dust. On the other hand, no correlation is found between SiO maser and silicate crystallinity, which may imply that silicate crystallinity does not correlate with mass-loss rate.
Simultaneous broadband observations and high-resolution X-ray spectroscopy of the transitional millisecond pulsar PSR J1023+0038

We report on the first simultaneous XMM–Newton, NuSTAR, and Swift observations of the transitional millisecond pulsar PSR J1023+0038 in the X-ray active state. Our multi-wavelength campaign allowed us to investigate with unprecedented detail possible spectral variability over a broad energy range in the X-rays, as well as correlations and lags among emissions in different bands. The soft and hard X-ray emissions are significantly correlated, with no lags between the two bands. On the other hand, the X-ray emission does not correlate with the UV emission. We refine our model for the observed mode switching in terms of rapid transitions between a weak propeller regime and a rotation-powered radio pulsar state, and report on a detailed high-resolution X-ray spectroscopy using all XMM–Newton Reflection Grating Spectrometer data acquired since 2013. We discuss our results in the context of the recent discoveries on the system and of the state of the art simulations on transitional millisecond pulsars, and show how the properties of the narrow emission lines in the soft X-ray spectrum are consistent with an origin within the accretion disc.
Waveguide for Bose-Einstein condensates

We report on the creation of Bose-Einstein condensates of ${}^{87}\mathrm{Rb}$ in a specially designed hybrid, optical dipole and magnetic trap. This trap naturally allows the coherent transfer of matter waves into a pure optical dipole potential waveguide based on a doughnut beam. Specifically, we present studies of the coherence of the ensemble in the hybrid trap and during the evolution in the waveguide by means of an autocorrelation interferometer scheme. We observe a mean-field dominated acceleration in the waveguide on a much longer time scale than in the free three-dimensional expansion.
Thermal Buckling of Plates and Shells

Topic Collections Related Content Customize your page view by dragging and repositioning the boxes below. Related Journal Articles Filter by Topic > Homogenization of Reticulated Structures Appl. Mech. Rev (July, 2001) Research Advances in the Dynamic Stability Behavior of Plates and Shells: 1987â€“2005â€”Part I: Conservative Systems Appl. Mech. Rev (March, 2007) Historical review of Zig-Zag theories for multilayered plates and shells Appl. Mech. Rev (May, 2003) [+] View More Related Proceedings Articles Filter by Topic > A Combined Experimental-Numerical Method to Evaluate Powder Thermal Properties in Laser Powder Bed Fusion MSEC2018 (2018) A Simplified and Efficient Analysis of Morton Effect GT2018 (2018) Thermal Transport in Thorium Dioxide IMECE2017 (2017) [+] View More Related eBook Content Various Structures Design of Plate and Shell Structures> Chapter 12 Axially Loaded Members Design & Analysis of ASME Boiler and Pressure Vessel Components in the Creep Range> Chapter 2 Members in Bending Design & Analysis of ASME Boiler and Pressure Vessel Components in the Creep Range> Chapter 3 [+] View More Sections PDF Email Share Get Citation Get Alerts Some tools below are only available to our subscribers or users with an online account. SEARCH ADVANCED SEARCH Search Applied Mechanics Applied Mechanics Heat Transfer About ASME Digital Collection Email Alerts Library Service Center ASME Membership Contact Us Publications Permissions /Reprints Privacy Policy Terms of Use © 2019 ASME The American Society of Mechanical Engineers Journals Submit a Paper Announcements Call for Papers Title History Conference Proceedings About ASME Conference Publications Conference Proceedings Author Guidelines Conference Publications Toolbox eBooks About ASME eBooks Press Advisory & Oversight Committee Book Proposal Guidelines This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy. | Accept Loading [Contrib]/a11y/accessibility-menu.js
Electron-impact excitation of Mg II: collision strengths and rate coefficients

Collision strengths for low-energy electron-impact excitation of Mg II are computed in a ten-state close-coupling approximation using the R-matrix method. Fine-structure transitions among the 17 associated levels are considered explicitly through algebraic transformation of the scattering matrices. Detailed comparisons are made with the merged-beam experiment of Smith and co-workers (1993) and the crossed-beam experiment of Zapesochnyl and co-workers (1984); the present results are found to be in very good agreement with the former for the 3s-3p resonance transition. A comparison with earlier theoretical calculations is also made. Maxwellian-averaged rate coefficients are calculated for transitions between the target levels considered, and a selection of these results is presented for practical applications.
Active control of a cylinder wake flow by using a streamwise oscillating foil

In this study, numerical experiments are carried out to control the vortex shedding of a circular cylinder by utilizing an oscillating foil. The thin foil of elliptic shape undergoes prescribed harmonic oscillations in the streamwise direction in the near wake region. This simplified model is intended to study how wake dynamics are modified via localized wake disturbance, and then to stabilize the global wake instability. The results show that, at proper gap spacing, the oscillating foil can completely suppress the wake unsteadiness and recover the recirculating bubble type flow. The global instability suppression is then established on the imposition of local symmetry into the reversed flow behind the cylinder. It is revealed that the dynamic interaction between the main shears layer and oscillatory boundary layers is responsible for the wake stabilization mechanism. In addition, the kinematic/dynamic parameters related to foil motions and flow properties are widely discussed to reveal their effects on t.