Miracle-dz/UniFAR-FTUs huggingface dataset:
PENGARUH ENDORSER, HARGA DAN KUALIATAS PRODUK TERHADAP PERILAKU PERALIHAN MEREK (BRAND SWITCHING) BEDAK PADAT MAYBELLINE DI KOTA PADANG

The purpose of this study is to determine the effect of endorser, price and quality of products toward Brand Switching Maybelline Solid Powder in Padang. The type of research is descriptive and qualitative research. The sampling technique used is Purposive sampling. The type of data used is primary and secondary data. The data analysis technique used is multiple regression by using t test and F test. The result of the research shows that there is a positive and insignificant influence between endorser variables on brand switching behavior of Maybelline solid powder in Padang. Then for price variable has no effect on brand switching, but there is significant influence between product quality variable to brand switching of Maybelline solid powder in Padang. Keywords : endorser, price, product quality, brand switching
Experimental Investigation of Rotor Slipstream Oscillations in the Ground Effect

Unsteadiness of pressure in a helicopter rotor slipstream may bring a significant problem during operation from the elevated heliports, as the oscillating slipstream acts on the heliport plate and causes vibration of building's structure (Ref. 1). However, still it is an unappreciated issue, discussed mainly in the literature focused on the brownout (e.g. Nathan and Green (Ref. 2), Ramasamy et al (Ref. 3)). In this case researchers usually neglect the loads acting on the ground. On the other hand, investigation of interaction between rotor slipstream and helicopter's surroundings (e.g. Gibertini et al. (Ref. 4), Dziubinski (Ref. 5)) is often limited to a time-averaged case. The investigation presented below has been carried with the 2-bladed rotor, having diameter of 8 meters, in conditions of IGE hover. Pressure measurements showed that the amplitude of its oscillations is nearly constant along the radius of the rotor and achieves the value up to 30% of the disc loading.
Scaling of the Berry Phase in the Yang-Lee Edge Singularity

We study the scaling behavior of the Berry phase in the Yang-Lee edge singularity (YLES) of the non-Hermitian quantum system. A representative model, the one-dimensional quantum Ising model in an imaginary longitudinal field, is selected. For this model, the dissipative phase transition (DPT), accompanying a parity-time (PT) symmetry-breaking phase transition, occurs when the imaginary field changes through the YLES. We find that the real and imaginary parts of the complex Berry phase show anomalies around the critical points of YLES. In the overlapping critical regions constituted by the (0 + 1)D YLES and (1 + 1)D ferromagnetic-paramagnetic phase transition (FPPT), we find that the real and imaginary parts of the Berry phase can be described by both the (0 + 1)D YLES and (1 + 1)D FPPT scaling theory. Our results demonstrate that the complex Berry phase can be used as a universal order parameter for the description of the critical behavior and the phase transition in the non-Hermitian systems.
Deuterium trapping by deformation-induced defects in tungsten

The influence of defects induced by plastic deformation of tungsten (W) on deuterium (D) retention has been studied. Recrystallized W samples were subjected to tensile deformations at temperatures of 573 K and 873 K to strains in the range of 3%–38%. The dislocation density measured by transmission electron microscopy increased by about 40 times after deformation to the highest strain. The introduced defects were decorated with D by exposure to a low-flux D plasma at sample temperatures of 370 K and 450 K. D retention in the samples was studied using nuclear reaction analysis and thermal desorption spectroscopy. The trapped D concentrations after the plasma exposures were low (up to a few times 10−4 at. fr.) and increased more slowly with strain than the dislocation density. Small vacancy-like defects and large vacancy clusters were detected in the samples by positron annihilation lifetime spectroscopy. Their concentrations also increased with strain more weakly than the dislocation density. It was concluded that these defects governed the D retention under plasma exposure at 450 K, while dislocations gave only a small contribution. It was also found that deformation already to the lowest strains significantly facilitates the formation of blister-like structures under D plasma exposure at 370 K. The defects associated with blister-like structures presumably gave a substantial contribution to D retention at 370 K.
Analysis of premixed flame kernel/turbulence interactions under engine conditions based on direct numerical simulation data

Although the evolution of premixed flames in turbulence has been frequently studied, it is not well understood how small flames interact with large-scale turbulent flow motion. Since this question is of practical importance for the occurrence of cycle-to-cycle variations in spark ignition engines, the objective of the present work is to fundamentally differentiate early flame kernel development from well-established turbulent flame configurations. For this purpose, a direct numerical simulation database consisting of three flames propagating in homogeneous isotropic turbulence (Falkenstein et al., Combust. Flame, 2019, Preprint, arXiv:1908.07556 (accepted)) is considered. The flames feature different ratios of the initially laminar flame diameter to the integral length scale. To quantify flame kernel development, the time evolution of flame topology and flame front geometry are analysed in detail. It is shown that some realizations of the early flame kernel are substantially influenced by high compressive strain caused by large-scale turbulent flow motion with characteristic length scales greater than the flame kernel size. As a result, the initial spherical kernel topology may become highly distorted, which is reflected in the stochastic occurrence of excessive curvature variance. Two mechanisms of curvature production resulting from early flame kernel/turbulence interactions are identified by analysis of the mean curvature balance equation. Further, it is shown that the curvature distribution of small flame kernels becomes strongly skewed towards positive curvatures, which is contrary to developed turbulent flames. Hence, the transition of ignition kernels to self-sustaining turbulent flames is very different in nature compared with the development of a statistically planar flame brush.
Universal Hard-label Black-Box Perturbations: Breaking Security-Through-Obscurity Defenses

We study the problem of finding a universal (image-agnostic) perturbation to fool machine learning (ML) classifiers (e.g., neural nets, decision tress) in the hard-label black-box setting. Recent work in adversarial ML in the white-box setting (model parameters are known) has shown that many state-of-the-art image classifiers are vulnerable to universal adversarial perturbations: a fixed human-imperceptible perturbation that, when added to any image, causes it to be misclassified with high probability Kurakin et al. [2016], Szegedy et al. [2013], Chen et al. [2017a], Carlini and Wagner [2017]. This paper considers a more practical and challenging problem of finding such universal perturbations in an obscure (or black-box) setting. More specifically, we use zeroth order optimization algorithms to find such a universal adversarial perturbation when no model information is revealed-except that the attacker can make queries to probe the classifier. We further relax the assumption that the output of a query is continuous valued confidence scores for all the classes and consider the case where the output is a hard-label decision. Surprisingly, we found that even in these extremely obscure regimes, state-of-the-art ML classifiers can be fooled with a very high probability just by adding a single human-imperceptible image perturbation to any natural image. The surprising existence of universal perturbations in a hard-label black-box setting raises serious security concerns with the existence of a universal noise vector that adversaries can possibly exploit to break a classifier on most natural images.
Magnetless Circulators with Harmonic Rejection Based on 
N
-Way Cyclic-Symmetric Time-Varying Networks

In photonics, circulators are three-port nonreciprocal components that allow unidirectional signal transmission from one port to another, in a cyclic rotating fashion. Magnetless circulators based on spatiotemporally modulated networks have recently been proposed as improvements over traditional designs, but these devices have their own shortcomings. The authors show that a suitable arrangement of $N$ nonlinear, time-varying unit cells with a gradient phase shift between their modulation signals can actually yield an effectively linear time-invariant nonreciprocal response. Such a circulator could enable $e.g.$ full-duplex communication, radar, and quantum computing.
NEW SUPERCONGRUENCES INVOLVING PRODUCTS OF TWO BINOMIAL COEFFICIENTS

Let $p>3$ be a prime and let $a$ be a rational $p$-adic integer with $a\not \equiv 0\;(\text{mod}\;p)$. We evaluate $$\begin{eqnarray}\mathop{\sum }_{k=1}^{(p-1)/2}\frac{1}{k}\binom{a}{k}\binom{-1-a}{k}\quad \text{and}\quad \mathop{\sum }_{k=0}^{(p-1)/2}\frac{1}{2k-1}\binom{a}{k}\binom{-1-a}{k}\end{eqnarray}$$ modulo $p^{2}$ in terms of Bernoulli and Euler polynomials.
Work extraction, information-content and the Landauer bound in the continuous Maxwell Demon

In a recent paper we introduced a continuous version of the Maxwell demon (CMD) that is capable of extracting large amounts of work per cycle by repeated measurements of the state of the system Ribezzi-Crivellari and Ritort (2019 Nat. Phys.). Here we underline its main features such as the role played by the Landauer limit in the average extracted work, the continuous character of the measurement process and the differences between our continuous Maxwell demon and an autonomous Maxwell demon. We demonstrate the reversal of Landauer’s inequality depending on the thermodynamical and mechanical stability of the work extracting substance. We also emphasize the robustness of the Shannon definition of the information-content of the stored sequences in the limit where work extraction is maximal and fueled by the large information-content of rare events.
Neutron spin structure studies at EIC

The extended and precise investigation of the nucleon (spin) structure is a cornerstone of the EIC initiative; the availability of deuteron and $^3$He polarized beams will offer unprecedented opportunities to obtain information on the neutron spin structure comparable to those of the proton; the combination of these data will allow to deepen knowledge and understanding of many aspects of the nucleon spin physics: from a more precise test of the Bjorken sum rule to a more detailed picture of the flavor structure of the nucleon sea, as well as a precise determination of different spin and transverse momentum dependent functions, at leading and higher twists. Moreover, almost close kinematics and large acceptance detectors typical of a collider, will potentially offer new measurement perspectives beyond the asymmetries.
Experimental Investigation on Efficiency Factor of Pile Groups Regarding Distance of Piles

There are a lot of the parameters which affect pile group behavior in soil. One of these factors is the distance of piles from each other. The impact of distance on pile groups in sand has been investigated through some researches, whereas most of them have not represented an exact estimation according to the continuous change of the distance in sand. Moreover, most of previous investigations have considered two piles as a perfect group. Since two-pile group has the least interaction effect among piles, it cannot suitably demonstrate the influence of spacing. In this lecture, several 4-pile groups modeled with different spacing were subjected to axial loading in laboratory. The pile groups were free-head with length to diameter ratio of 13.5. The piles are designed in a way which the shaft resistance of piles can be completely mobilized through the test. Then, the bearing capacities of pile groups are measured and compared with the single pile's resistance in order to calculate the efficiency coefficient of the groups. It is revealed that the distance is noticeably effective in efficiency factor and this effectiveness, non-linearly decreases by increase of spacing. The results show that the efficiency coefficient is changing between almost 1 and 1.4.
Thermal Components in Gamma-Ray Bursts. II. Constraining the Hybrid Jet Model

In explaining the physical origin of the jet composition of gamma-ray bursts (GRBs), a more general picture, i.e., the hybrid jet model (which introduced another magnetization parameter σ0 on the basis of the traditional fireball model), has been well studied in Gao & Zhang. However, it still has not yet been applied to a large GRB sample. Here, we first employ the “top-down” approach of Gao & Zhang to diagnose the photosphere properties at the central engine to see how the hybrid model can account for the observed data as well, through applying a Fermi GRB sample (eight bursts) with the detected photosphere component, as presented in Li (our Paper I). We infer all physical parameters of a hybrid problem with three typical values of the radius of the jet base (r0 = 107, 108, and 109 cm). We find that the dimensionless entropy for all the bursts shows η ≫ 1 while the derived (1+σ0) for five bursts (GRB 081224, GRB 110721A, GRB 090719, GRB 100707, and GRB 100724) is larger than unity, indicating that in addition to a hot fireball component, another cold Poynting-flux component may also play an important role. Our analysis also shows that in a few time bins for all r0 in GRB 081224 and GRB 110721A, the magnetization parameter at ∼1015 cm (1+σr15) is greater than unity, which implies that internal-collision-induced magnetic reconnection and turbulence may be the mechanism to power the nonthermal emission, rather than internal shocks. We conclude that the majority of bursts (probably all) can be well explained by the hybrid jet problem.
Development and Validation of a Quick Screening Test for Local Hong Kong Cantonese-speaking Intellectually Disabled Adults: a 10-item Checklist for use by non-professionals.

Previous research to develop quick screening tests for intellectually disabled (ID) people has shown over-reliance on physical characteristics identification or complex apparatus set-up when designed for professional administration. This study examined another mode of operation, making use of mainly adapted conservation task-items of freely-available local coins and bank-notes set-up, with the intention to place such tools in the hands of a layman to check and assist his fellow ID adult citizen, in case of emergency missing/ lost scenarios and during work or leisure interactions. The 68 adult ID participants, 26 females and 42 males, sought out by purpose sampling, in a rough 4:3:1 moderate/mild/borderline ratio, were administered the 13 items through friendly standardized procedures at their work or activity sites with face validity obtained through 2 Previous Focus Groups, and ecological validity checked through prior rapport-building semi-structured interviews. Total score means were statistically t-tested with those of 2 comparison groups of 50 MA-matched non-disabled children and 50 CA-matched non-disabled adults. Item analysis of item-difficulty (p) and item-discrimination (D) values helped finalize a 10-item scale with desirable high p(.06 to .37 except one as .53) and D(.54 to .78) values, and Cronbach Alpha of . 91 and Split-half coefficients at . 91 to . 97. Statistical analyses showed significant total group score means t-test differences but no gender bias.
The D-term form factor from dispersion relations in deeply virtual Compton scattering

We review a dispersive calculation of the D-term form factor, using unsubtracted $t$-channel dispersion relations for the deeply virtual Compton scattering amplitudes. The $t$-channel unitarity relation is saturated with the contribution of two-pion intermediate states, using the two-pion generalized distributions amplitude for the $\gamma^*\gamma\rightarrow \pi \pi$ subprocess and reconstructing the $\pi\pi\rightarrow N\bar{N}$ subprocess from available information on pion-nucleon partial-wave helicity amplitudes. The dispersion-relation results are discussed in comparison with available model predictions and phenomenological extractions.
Tracking Shock Movement on the Surface of an Oscillating, Straked Semispan Delta Wing

A recent research effort, sponsored by the Air Force Office of Scientific Research, numerically investigated the unsteady aerodynamic flow field around an oscillating, straked, delta wing. The study was centered on determining the importance of the unsteady aerodynamic forces acting as a driver for a nonlinear motion known as limit cycle oscillations. The current effort focused on creating a computational model to compare to the results of previous tests and modeling efforts and discover new information regarding the onset of LCO. The computational model was constructed using the Cartesian overset capabilities of the CREATE-AVTMfixed wing fluid dynamics solver Kestrel. The geometry of the model was based on an Euler model that was recently developed to investigate the same experiments. Adaptive mesh refinement was also employed during the numerical simulations to better capture the translation of the shock along the surface of the semispan. The developed numerical model was tested at a variety of flow conditions, including varying free-stream Mach numbers, starting trim angles, oscillation amplitudes and oscillation frequencies. The results showed a number of trends that could influence the onset and sustainment of LCO. First, the aerodynamic phenomena of shock-induced trailing edge separation (SITES) was observed during a number of the simulations. Popular among aeroelasticians as a possible source of LCO, SITES is thought to cause a change in the aerodynamic forces acting on the flexible structure, propagating the LCO motion. Second, the quantitative results of the computational model showed good agreement with published, qualitative observations made during wind tunnel experiments. Third, a separation bubble was observed aft a shock on the top surface of the semispan. This previously unobserved flow feature could have a significant impact on the forces acting on the model during the oscillation.
Dynamical extensions of band theory : non-Herintian contributions and topological stabilization

Motivated by the increased importance of boundary effects in topological states of Condensed Matter, combined with the involvement of geometric and topological concepts within a quantum mechanical framework, this dissertation is dedicated to the reformulation and extension of some fundamental concepts, which in turn lead to important measurable consequences. We have reconsidered the so called Modern Theory of Orbital Magnetization by defining additional quantities that incorporate a non-Hermitian effect due to anomalous operators that break the domain of definition of the Hermitian Hamiltonian. As a result, overlooked boundary contributions to the observable are rigorously and analytically taken into account. These are expected to give giant contributions to orbital magnetization whenever band crossings occur along with Hall voltage due to imbalance of electron accumulation at opposite boundaries of the material. We have also applied similar arguments with non-Hermitian contributions to spin physics. We show how one can set up a global quantum equation of motion for the spin transport processes without any local conservation law being necessary, in contrast to the established practice. In this framework, we have defined the intrinsic spin current operator as the time derivative of the correlation between electron’s position and electron’s spin. This intrinsic spin current is free from any complications, it explicitly takes into account boundary contributions, and for systems that lack local spin-torques turns zero value. In addition, we have made a dynamical extension of the standard Hellmann-Feynman theorem to one that can be applied to time-dependent states with time-dependent parameters. The resulting formula for the dynamics of the observables is found to have profound connections to generalized Berry curvatures as well as to boundary contributions due to an emerging non-Hermitian effect. By way of application we have derived the quantum equations of motion of the electron which extends the standard semiclassical counterpart. Application of the theorem to the study of particle transport in the non-adiabatic limit, shows that the quantization breaks down due to a non-trivial Aharonov-Anandan phase. Similarly, application of the theorem to the study of the electric polarization indicates that there is a boundary non-Hermitian contribution that has been so far overlooked in the so called Modern Theory of Polarization. By using an orthonormal basis we have analyzed further the dynamical extension of the Hellmann-Feynman theorem. We have found a formula for the observables that depends
Flats, spikes and crevices: the evolving shape of the inhomogeneous corner growth model

We study the macroscopic evolution of the growing cluster in the exactly solvable corner growth model with independent exponentially distributed waiting times. The rates of the exponentials are given by an addivitely separable function of the site coordinates. When computing the growth process (last-passage times) at each site, the horizontal and vertical additive components of the rates are allowed to also vary respectively with the column and row number of that site. This setting includes several models of interest from the literature as special cases. Our main result provides simple explicit variational formulas for the a.s. first-order asymptotics of the growth process under a decay condition on the rates. Formulas of similar flavor were conjectured in arXiv:math/0004082, which we also establish. Subject to further mild conditions, we prove the existence of the limit shape and describe it explicitly. We observe that the boundary of the limit shape can develop flat segments adjacent to the axes and spikes along the axes. Furthermore, we record the formation of persistent macroscopic spikes and crevices in the cluster that are nonetheless not visible in the limit shape. As an application of the results for the growth process, we compute the flux function and limiting particle profile for the TASEP with the step initial condition and disorder in the jump rates of particles and holes. Our methodology is based on concentration bounds and estimating the boundary exit probabilities of the geodesics in the increment-stationary version of the model, with the only input from integrable probability being the distributional invariance of the last-passage times under permutations of columns and rows.