Miracle-dz/UniFAR-FTUs huggingface dataset:
Packet‐based feedback control of electrical drive and its application to trajectory tracking of manipulator

In systems disconnected from the external grid, such as mobile robots and vehicles, the effective use of renewables and energy harvesting techniques helps a longer operation with less weight and space for batteries. Power packet dispatching system is a promising measure to manage the complex power flow created by such distributed power sources of various profiles. In the system, power is transferred as a pulse, and information tag is attached to the pulse power in voltage waveforms. The physical integration of power and information realizes a smooth inclusion of sources and loads of different profiles and their decentralized operation. This paper discusses the application of the system to load control. We propose a decentralized packet‐based feedback control scheme. The successful operation of the proposed scheme is confirmed by an application to an electrical drive. In addition, the application to trajectory control of 2‐degree‐of‐freedom manipulator reveals the possibility of a peak‐power reduction based on a demand response operation of the proposed scheme. The results contribute to a realization of decentralized flow control of power packets based on the convenience of both the sources and the loads.
Thermodynamics and emergent universe

We show that in the isentropic scenario the first order thermodynamical particle creation model gives an emergent universe solution even when the chemical potential is non-zero. However there exists no emergent universe scenario in the second order non-equilibrium theory for the particle creation model. We then point out a correspondence between the particle creation model with barotropic equation of state and the equation of state giving rise to an emergent universe without particle creation in spatially flat FRW cosmology.
HAT-P-28b AND HAT-P-29b: TWO SUB-JUPITER MASS TRANSITING PLANETS

We present the discovery of two transiting exoplanets. HAT-P-28b orbits a V = 13.03 G3 dwarf star with a period P = 3.2572 days and has a mass of 0.63 ± 0.04 MJ and a radius of 1.21+0.11 − 0.08 RJ yielding a mean density of 0.44 ± 0.09 g cm−3. HAT-P-29b orbits a V = 11.90 F8 dwarf star with a period P = 5.7232 days and has a mass of 0.78+0.08 − 0.04 MJ and a radius of 1.11+0.14 − 0.08 RJ yielding a mean density of 0.71 ± 0.18 g cm−3. We discuss the properties of these planets in the context of other known transiting planets.
Multi-modal 3D Image Registration Using Interactive Voxel Grid Deformation and Rendering

We introduce a novel multi-modal 3D image registration framework based on 3D user-guided deformation of both volume’s shape and intensity values. Being able to apply deformations in 3D gives access to a wide new range of interactions allowing for the registration of images from any acquisition method and of any organ, complete or partial. Our framework uses a state of the art 3D volume rendering method for real-time feedback on the registration accuracy as well as the image deformation. We propose a novel methodological variation to accurately display 3D segmented voxel grids, which is a requirement in a registration context for visualizing a segmented atlas. Our pipeline is implemented in an open-source software (available via GitHub) and was directly used by biologists for registration of mouse brain model autofluorescence acquisition on the Allen Brain Atlas. The latter mapping allows them to retrieve regions of interest properly identified on the segmented atlas in acquired brain datasets and therefore extract only high-resolution images of those areas, avoiding the creation of images too large
Antibacterial activity of Blumea axillaris synthesized selenium nanoparticles against multidrug resistant pathogens of aquatic origin

ABSTRACT Selenium one of the most important trace elements exhibits diverse biological functions. Particularly in fishes, it plays a protective role and enhances growth performances. The green synthesized selenium nanoparticles have added benefits including ease of availability, economic, safe, etc. Furthermore, the development of multidrug-resistant pattern among pathogens in general and aquatic pathogens in particular has raised the demand for a potential substitute for regularly used antibiotics . Hence, this study was intended to synthesize selenium nanoparticles in a green route method from sodium selenite salt by using the plant Blumea axillaris and to evaluate their antibacterial activity against aquatic pathogens. The findings of this study indicated that the stem and root of B. axillaris were capable of synthesizing selenium nanoparticles with an optimised salt concentration of 0.1 M. Further both the stem and root extracts synthesized selenium nanoparticles were found to inhibit pathogens. While aquatic pathogens exhibited multidrug resistance pattern against many commonly used drugs, the green synthesized selenium nanoparticles were found to effectively control these pathogens. However, the detailed study on the mechanism of inhibition is going on which in turn can be a very cheap, safe, and economical way of enhancing aquaculture industry.
Approaching quantum criticality in a partially geometrically frustrated heavy-fermion metal

Quantum phase transitions have captured the interest of a large community in condensed-matter and atom physics research. The common feature of these very different material classes lies in the fact that the competition between low-energy scales can be tuned by a nonthermal parameter, such as pressure, magnetic or electric field, and chemical composition for the condensed-matter systems. In heavy-fermion materials, the strong exchange J between f-electrons and conduction electrons can lead to quenching of the f-electron-derived (nearly) localized magnetic moments via the Kondo effect or, if J becomes weaker, to long-range magnetic order via the Ruderman-Kittel-Kasuya-Yosida interaction mediated by the conduction electrons. In addition it has been suggested that magnetic order can be suppressed by quantum fluctuations which may be enhanced by geometric frustration. Here we report on the observation of a quantum phase transition in a partially frustrated antiferromagnetic metallic system. In antiferromagnetic CePdAl the magnetic Ce ions form a network of equilateral triangles in the (001) plane, similar to the kagom\'e lattice, with one third of the Ce moments not participating in long-range order. The N\'eel temperature T_N = 2.7 K can be driven to zero upon replacing 14.4% of Pd by Ni. Here the specific heat C exhibits a C/T ~ - log T dependence. Within the Hertz-Millis-Moriya model of quantum criticality, this behavior can be attributed to two-dimensional critical antiferromagnetic fluctuations arising from the decoupling of three-dimensional magnetic order by frustration. The intermediate planes of frustrated moments are a possible candidate for a two-dimensional spin-liquid. The simultaneous presence of magnetic order, geometric frustration, and Kondo effect in this system might thus entail a new route to quantum criticality.
Families of N=2 field theories

This is the first article in the collection of reviews "Exact results on N=2 supersymmetric gauge theories", ed. J. Teschner. It describes how large families of field theories with N=2 supersymmetry can be described by means of Lagrangian formulations, or by compactification from the six-dimensional theory with (2,0) supersymmetry on spaces of the form $M^4 \times C$, with C being a Riemann surface. The class of theories that can be obtained in this way is called class $\cal S$. This description allows us to relate key aspects of the four-dimensional physics of class $\cal S$ theories to geometric structures on C.
Dyck words and multiquark primitive amplitudes

I study group theory (Kleiss-Kuijf) relations between purely multi-quark primitive amplitudes at tree level, and prove that they reduce the number of independent primitives to (n-2)! /(n/2)! , where n is the number of quarks plus antiquarks, in the case where quark lines have different flavours. I give an explicit example of an independent basis of primitives for any n which is of the form A(1,2,sigma), where sigma is a permutation based on a Dyck word.
Strategies to address non-communicable diseases in the Commonwealth of Independent States countries: a scoping review

Abstract Aim: The aim of this study is to review the literature in Commonwealth of Independent States (CIS) countries with regard to their response to non-communicable diseases (NCDs) and the implementation of the World Health Organization (WHO) Package of Essential Non-communicable (PEN) disease interventions for primary health care. Background: NCDs are estimated to account from 62% to 92% of total deaths in CIS countries. Current management of NCDs in CIS countries is focused on specialists and hospital care versus primary health care (PHC) as recommended by the WHO. Methods: This paper uses a scoping review of published and grey literature focusing on diabetes and hypertension in CIS countries. These two conditions are chosen as they represent a large burden in CIS countries and are included in the responses proposed by the WHO PEN. Findings: A total of 96 documents were identified and analysed with the results presented using the WHO Health System Building Blocks. Most of the publications identified focused on the service delivery (41) and human resources (20) components, while few addressed information and research (17), and only one publication was related to medical products. As for their disease of focus, most studies focused on hypertension (14) and much less on diabetes (3). The most studies came from Russia (18), followed by Ukraine (21) and then Kazakhstan (12). Only two countries Moldova and Kyrgyzstan have piloted the WHO PEN. Overall, the studies identified highlight the importance of the PHC system to better control and manage NCDs in CIS countries. However, these present only strategies versus concrete interventions. One of the main challenges is that NCD care at PHC in CIS countries continues to be predominantly provided by specialists in addition to focusing on treatment versus preventative services.
On the covering fraction variability in an EUV mini-BAL outflow from PG 1206+459

We report on the first detection of extreme-ultraviolet (EUV) absorption variability in the NeVIII 770,780 mini-broad absorption line (mini-BAL) in the spectrum of the quasar (QSO) PG 1206+459. The observed equivalent width (EW) of the NeVIII doublet show a ~4 sigma variation over a timescale of 2.8 months in the QSO's rest-frame. Both members of the NeVIII doublet exhibit non-black saturation, indicating partial coverage of the continuum source. An increase in the NeVIII covering fraction from f_c = 0.59\pm0.05 to 0.72\pm0.03 is observed over the same period. The NeVIII profiles are too highly saturated to be susceptible to changes in the ionization state of the absorbing gas. In fact, we do not observe any significant variation in the EW and/or column density after correcting the spectra for partial coverage. We, thus, propose transverse motions of the absorbing gas being the cause of the observed variability. Using a simple model of a transiting cloud we estimate a transverse speed of ~1800 km/s. For Keplerian motion, this corresponds to a distance between the absorber and the central engine of ~1.3 pc, which places the absorber just outside the BLR region. We further estimate a density of ~5\times10^6 cm^(-3) and a kinetic luminosity of ~10^43 - 10^44 erg/s. Such large kinetic powers suggest that outflows detected via EUV lines are potentially major contributors to AGN feedback.
Large deviations of the top eigenvalue of large Cauchy random matrices

We compute analytically the large deviation tails of the probability density function (pdf) of the top eigenvalue λmax in rotationally invariant and heavy-tailed Cauchy ensembles of N × N matrices for any Dyson index β > 0, where β = 1, 2, 4 correspond, respectively, to orthogonal, unitary and symplectic ensembles. Furthermore, we show that these large deviation tails flank a central non-Gaussian regime for on both sides. By matching these tails with the central regime, we obtain the exact leading asymptotic behaviors for any β of the pdf in the central regime, which generalizes the Tracy–Widom distribution known for Gaussian ensembles. Our analytical results are confirmed by numerical simulations.
Search for exoplanet around northern circumpolar stars - Four planets around HD 11755, HD 12648, HD 24064, and 8 Ursae Minoris

Aims. This program originated as the north pole region extension of the established exoplanet survey using 1.8 m telescope at Bohyunsan Optical Astronomy Observatory (BOAO). The aim of our paper is to find exoplanets in northern circumpolar stars with a precise radial velocity (RV) survey. Methods. We have selected about 200 northern circumpolar stars with the following criteria: Dec. > 70 degree, 0.6 < B-V < 1.6, HIPPARCOS_scat < 0.05 magnitude, and 5.0 < mv < 7.0. The high-resolution, fiber-fed Bohyunsan Observatory Echelle Spectrograph (BOES) was used for the RV survey. Chromospheric activities, the HIPPARCOS photometry, and line bisectors were analyzed to exclude other causes for the RV variations. Results. In 2010, we started to monitor the candidates and have completed initial screening for all stars for the last five years. We present the detection of four new exoplanets. Stars HD 11755, HD 12648, HD 24064, and 8 UMi all show evidence for giant planets in Keplerian motion. The companion to HD 11755 has a minimum mass of 6.5 M_Jup in a 433-day orbit with an eccentricity of 0.19. HD 12648 is orbited by a companion of minimum mass of 2.9 M_Jup having a period of 133 days and an eccentricity of 0.04. Weak surface activity was suspected in HD 24064. However, no evidence was found to be associated with the RV variations. Its companion has a minimum mass of 9.4 M_Jup, a period of 535 days, and an eccentricity of 0.35. Finally, 8 UMi has a minimum mass of 1.5 M_Jup, a period of 93 days with an eccentricity of 0.06.
Proposal for locality test of the Aharonov-Bohm effect via Andreev interferometer without a loop

We propose a quantitative test of the quantum locality in the electromagnetic interaction that generates the Aharonov-Bohm effect. For this purpose, we analyze the Lorentz-covariant field interaction approach based on the local action of gauge-invariant quantities only (“local” theory), and compare it with the standard potential-based (“nonlocal”) theory. Whereas the two approaches yield identical results for topological phase and any phenomenon involving classical equation of motion, an example violating this equivalence is presented; interference of the Andreev reflections from two independent superconducting inputs into a single normal metallic output. A well-defined phase shift of the interference is predicted in the “local” theory. In contrast, the potential-based Lagrangian fails the corresponding prediction. This result is significant as it can settle the issue of quantum locality in the electromagnetic interaction.
Finite-temperature Cherenkov radiation in the presence of a magnetodielectric medium

A canonical approach to Cherenkov radiation in the presence of a magnetodielectric medium is presented in classical, nonrelativistic, and relativistic quantum regimes. The equations of motion for the canonical variables are solved explicitly for both positive and negative times. Maxwell and related constitute equations are obtained. In the large-time limit, the vector potential operator is found and expressed in terms of the medium operators. The energy loss of a charged particle, emitted in the form of radiation, in finite temperature is calculated. A Dirac equation concerning the relativistic motion of the particle in presence of the magnetodielectric medium is derived and the relativistic Cherenkov radiation at zero and finite temperature is investigated. Finally, it is shown that the Cherenkov radiation in nonrelativistic and relativistic quantum regimes, unlike its classical counterpart, introduces automatically a cutoff for higher frequencies beyond which the power of radiation emission is zero.
Making a Be star: the role of rotation and pulsations

Abstract The Be phenomenon, i.e. the ejection of matter from Be stars into a circumstellar disk, has been a long lasting mystery. In the last few years, the CoRoT satellite brought clear evidence that Be outbursts are directly correlated to pulsations and rapid rotation. In particular the stochastic excitation of gravito-inertial modes, such as those detected by CoRoT in the hot Be star HD 51452, is enhanced thanks to rapid rotation. These waves increase the transport of angular momentum and help to bring the already rapid stellar rotation to its critical value at the surface, allowing the star to eject material. Below we summarize the recent observational and theoretical findings and describe the new picture of the Be phenomenon which arose from these results.
A wide field X‐ray telescope for astronomical survey purposes: from theory to practice

X-ray mirrors are usually built in the Wolter I (paraboloid-hyperboloid) configuration. This design exhibits no spherical aberration on-axis but suffers from field curvature, coma and astigmatism, therefore, the angular resolution degrades rapidly with increasing off-axis angles. Different mirror designs exist in which the primary and secondary mirror profiles are expanded as a power series in order to increase the angular resolution at large off-axis positions, at the expanses of the on-axis performances. Here we present the design and global trade off study of an X-ray mirror systems based on polynomial optics in view of the Wide Field X-ray Telescope (WFXT) mission. WFXT aims at performing an extended cosmological survey in the soft X-ray band with unprecedented flux sensitivity. To achieve these goals the angular resolution required for the mission is very demanding, ~5 arcsec mean resolution across a 1° field of view. In addition an effective area of 5-9000 cm 2 at 1 keV is needed.
The use of different LEDs wavelength and light intensities on in vitro proliferation of cherry rootstock: in�uence on photosynthetic pigments, photosystem II photochemistry and leaf anatomy

Plant growth and development are strongly in�uenced by light quality conditions in their environment. In this study, shoot proliferation, photosynthetic pigments, leaf anatomy and photosystem II photochemistry of Gisela 6 cherry rootstock (Prunus cerasus x Prunus canescens) were investigated. Initially, three light wavelength absorption spectra including 400– 700 nm (mainly blue-green, White Fluorescent Light, WFL), 450–550 nm (mainly blue-red: BR, LED2) and 450–660 nm (blue-green-yellow-orange-red, LED3) under 40 µmol m − 2 s − 1 intensity were studied. Following that, three Light Emitting Diodes (LED) intensities including 20 (LED1), 40 (LED2), and 120 µmol m − 2 s − 1 (LED4) were investigated under BR spectrum. The culture medium used was the MS (Murashige and Skoog) containing 4.4 µΜ 6-benzyladenine (BA), 0.05 µΜ α-naphthalene acetic acid (NAA) and 0.3 µM gibberellic acid (GA 3 ) (30 days, 16h photoperiod, 22 ± 2 o C). WFL exhibited non-signi�cant differences with LED2 (shoot number 4.25, proliferation rate 4.30, shoot height 0.91 cm). LED2 displayed higher fresh and dry shoot biomass, better PSII functionality, increased Chl a/b, Chl b and carotenoids content, avoiding oxidative damage as evidenced by the decreased stressed explants (5.36%). Leaf anatomy under LED2 and WFL was similar. LED4 presented the highest rate of stressed explants, with their leaf anatomy being severely affected, as leaves had a reduced mesophyll cell density. In LED4, the proportion of the absorbed energy used in photochemistry (Φ PSII ) was decreased whereas the increased quantum yield of non-regulated energy loss in PSII (Φ NO ) could not be compensated by the increased photoprotective energy dissipation (Φ NPQ ). Therefore, LED2 was the most bene�cial for growing Gisela 6 plantlets in vitro. Higher proliferation rate, shoot biomass, photosystem II functionality, Chl a/b and carotenoids under LED2 [450-550 nm, mainly blue-red, 40 μmol/m 2 /s] whereas high light stress (120 μmol/m 2 /s) adversely affected leaf anatomy. considered for the analysis of photosynthetic pigments. Results are expressed as mean ± standard error (SE). For chlorophyll �uorescence and photosynthetic pigment analysis, the Student’s t-test (StatView computer package, Abacus Concepts, Inc Berkley, CA, USA) was used at a level of P < 0.05.
Regulation of Collagen Synthesis

Collagen synthesis is a complex orchestration of intra­ cellular and extracellular events. In addition to synthesis of the polypeptide chains more than a dozen modifica­ tions of the molecule occur; most of these are enzymatic and specific for collagen. Regulational control of colla­ gen synthesis promises to be equally complex. Examples are described to 4 specific regulatory influences. Ascor­ bic acid markedly stimulates collagen synthesis without affecting synthesis of other proteins. This effect appears to be unrelated to its cofactor roles for hydroxylation of lysine and proline. Glucocorticoids at J-tM concentration specifically inhibit collagen synthesis. Tissues treated with glucocorticoids have diminished levels of mRNA for collagen. During collagen synthesis the aminoter­ minal propeptide of procollagen is cleaved by a specific protease. This peptide appears to be a feedback inhibitor of collagen synthesis. This effect can be demonstrated in cells and in cell-free synthesizing systems. A membrane receptor system may permit the peptide to be recognized and subsequently act as a translational control mecha­ nism. Viral transformation of fibroblasts results in selec­ tively decreased synthesis of collagen. Levels of cyto­ plasmic and nuclear mRNA are likewise selectively di­ minished consistent with transcriptional control.
DNS Study on Physics of Late Boundary Layer Transition

This paper serves as a review of our recent new DNS study on physics of late boundary layer transition. This includes mechanism of the large coherent vortex structure formation, small length scale generation and flow randomization. The widely spread concept vortex breakdown to turbulence,which was considered as the last stage of flow transition, is not observed and is found theoretically incorrect. The classical theory on boundary layer transition is challenged and we proposed a new theory with five steps, i.e. receptivity, linear instability, large vortex formation, small length scale generation, loss of symmetry and randomization to turbulence. We have also proposed a new theory about turbulence generation. The new theory shows that all small length scales (turbulence) are generated by shear layer instability which is produced by large vortex structure with multiple level vortex rings, multiple level sweeps and ejections, and multiple level negative and positive spikes near the laminar sub-layers.Therefore, turbulence is not generated by vortex breakdown but rather positive and negative spikes and consequent high shear layers. Shear layer instability is considered as the mother of turbulence. This new theory may give a universal mechanism for turbulence generation and sustenance which shows that the energy is brought by large vortex structure through multiple level sweeps.
Spin torque ferromagnetic resonance with magnetic field modulation

We demonstrate a technique of broadband spin torque ferromagnetic resonance (ST-FMR) with magnetic field modulation for measurements of spin wave properties in magnetic nanostructures. This technique gives great improvement in sensitivity over the conventional ST-FMR measurements, and application of this technique to nanoscale magnetic tunnel junctions (MTJs) reveals a rich spectrum of standing spin wave eigenmodes. Comparison of the ST-FMR measurements with micromagnetic simulations of the spin wave spectrum allows us to explain the character of low-frequency magnetic excitations in nanoscale MTJs.