Miracle-dz/UniFAR-FTUs huggingface dataset:
Some Results of Deformations on Compact $H$-twisted Generalized Calabi-Yau Manifolds

In this paper, we prove several formulas related to Hodge theory, and using them to prove the deformations of a compact $H$-twisted generalized Calabi-Yau manifold are unobstructed and $L^2$ convergence in a neighborhood in another power series . And if we assume that the deformation is smooth in a fixed neighborhood, and assume the existence of a global canonical family of deformation, we also construct the global canonical family of the deformations of generalized K\"ahler manifolds.
Investigation of high-harmonic generation from xenon atom clusters

We report on the generation of harmonic radiation (in the 70 - 90 nm range) from clusters of Xe atoms formed in a gas jet. We find that the harmonic yield from the clusters exhibits an anomalous cubic scaling with backing pressure to the gas jet. This scaling is consistent with a cluster dipole moment resulting from collective oscillations of electrons around the central ions of the cluster. Using a nanosecond ultraviolet prepulse to dissociate the clusters, we have also attempted to compare harmonic yields from clusters with those produced from monatomic Xe, under otherwise identical conditions. Our results suggest that yields from clusters might exceed those from monomers by up to a factor of five.
EMPLOYING A NEW, BVIc PHOTOMETRIC SURVEY OF IC 4665 TO INVESTIGATE THE AGE OF THIS YOUNG OPEN CLUSTER

We present a new, BVIc photometric survey of the young open cluster IC 4665, which improves on previous studies of this young cluster by incorporating a rigorous standardization procedure, thus providing high-fidelity colors and magnitudes for cluster members. We use this new photometric dataset to reevaluate the properties (age and distance) of IC 4665. Namely, using a statistical approach incorporating τ2 color–magnitude diagram modeling, we measure a pre-main-sequence (PMS) isochrone age and distance of 36 ± 9 Myr and 360 ± 12 pc, as well as an upper-main-sequence turn-off age and distance of 42 ± 12 Myr and 357 ± 12 pc. These ages and distances are highly dependent on the isochrone model and color used for the fitting procedure, with a possible range of ∼10–20 Myr in age and ∼20 pc in distance. This spread in calculated ages and distances seen between colors and models is likely due to limitations in the individual membership catalogs and/or systematic differences in the predicted stellar parameters from the different sets of models. Interestingly, when we compare the isochrone ages for IC 4665 to the published lithium depletion boundary (LDB) age, 28 ± 5 Myr, we observe that this cluster does not appear to follow the trend of isochrone ages being 1.5 times smaller than LDB ages. In addition, comparing the overall magnetic activity (X-ray and Hα emission) in IC 4665 with other well-studied open clusters, we find that the observed activity distributions for this young cluster are best characterized by assuming an age of 30–40 Myr, thus in agreement with our PMS and turn-off isochrone ages for IC 4665. Overall, although some age discrepancies do exist, particularly in the ages measured from PMS isochrones, the range of possible IC 4665 ages derived from the various dating techniques employed here is relatively small compared to that found for other well-studied open clusters.
A unified approach to nasality and voicing

This book makes an important contribution to the expanding body of work in generative phonology which aims to reduce the number of traditionally recognized melodic categories in order to achieve a greater degree of restrictiveness. By analyzing data from a large number of different languages, Nasukawa establishes a clear affinity between nasality and voicing, and demonstrates the advantages of treating these two properties as different phonetic manifestations of a single nasal-voice category. The choice of whether to interpret this category as voicing or nasality is determined by the active or inactive status of a complement tier. This study deepens our understanding of the typological relation between nasality and voicing, and sheds new light on a number of related agreement phenomena.
Geometry of strings and branes

De elementaire-deeltjesfysica probeert de fundamentele bouwstenen van de Natuur en hun onderlinge wisselwerkingen te beschrijven. Uit experimenten is gebleken dat de elementaire deeltjes in twee klassen zijn onder te brengen: de leptonen, waaronder het elektron en het neutron; en de quarks, de bouwstenen van protonen en neutronen. Zie: Samenvatting
AN X-RAY AND OPTICAL LIGHT CURVE MODEL OF THE ECLIPSING SYMBIOTIC BINARY SMC3

Some binary evolution scenarios for Type Ia supernovae (SNe Ia) include long-period binaries that evolve to symbiotic supersoft X-ray sources in their late stage of evolution. However, symbiotic stars with steady hydrogen burning on the white dwarf's (WD) surface are very rare, and the X-ray characteristics are not well known. SMC3 is one such rare example and a key object for understanding the evolution of symbiotic stars to SNe Ia. SMC3 is an eclipsing symbiotic binary, consisting of a massive WD and red giant (RG), with an orbital period of 4.5 years in the Small Magellanic Cloud. The long-term V light curve variations are reproduced as orbital variations in the irradiated RG, whose atmosphere fills its Roche lobe, thus supporting the idea that the RG supplies matter to the WD at rates high enough to maintain steady hydrogen burning on the WD. We also present an eclipse model in which an X-ray-emitting region around the WD is almost totally occulted by the RG swelling over the Roche lobe on the trailing side, although it is always partly obscured by a long spiral tail of neutral hydrogen surrounding the binary in the orbital plane.
Evaluation of the Effectiveness of Augmented Reality-Based Teaching Material: The Solar System

Abstract This study aims at development and evaluation of effectiveness of AR-based teaching material (ARTM) for the subject “Solar System” in the unit of “Solar System and Eclipses. ” The study, which was conducted through the case study method, was carried out with 22 sixth-grade students. The data collection tools were “The Solar System Data Collection Form” and “The Astronomy Opinion Form. ” The data were analyzed by qualitative analysis. It was found that ARTM enhanced the success of the students on the subject and contributed to the process of remedying their misconceptions. It was also seen that ARTM increased their interest in astronomy subjects and concepts. The students were happy to use such applications in the class and wanted to continue using AR applications in learning such abstract concepts in the future.
A Highly Stable Low-Energy 10T SRAM for Near-Threshold Operation

This paper aims to explore the design of a novel highly stable low-energy 10T (SLE10T) SRAM cell for near-threshold operation. The latch core of the proposed design consists of a cross-coupled structure of a tri-state inverter and a standard inverter. The tri-state inverter is switched to the high-impedance mode during a write operation to temporarily float the data node, improving writability. In addition, read stability is equivalent to hold stability due to considering a separate path for read current flow, as well as a built-in read-assist scheme to force the ‘0’ storing node to ground. Leakage and dynamic power consumptions in the designed cell are reduced with the help of single-bitline structure and stacking of transistors. The simulation results in a 7-nm FinFET at a 0.5 V show that the SLE10T improves read stability by at least <inline-formula> <tex-math notation="LaTeX">$1.31\times $ </tex-math></inline-formula> compared to read-disturbance SRAMs and offers the second-highest writability, improvement of at least <inline-formula> <tex-math notation="LaTeX">$1.10\times $ </tex-math></inline-formula>. Leakage power dissipation is reduced in the SLE10T by at least <inline-formula> <tex-math notation="LaTeX">$1.10\times $ </tex-math></inline-formula>. Moreover, it improves read/write energy by at least <inline-formula> <tex-math notation="LaTeX">$1.01\times /1.03\times $ </tex-math></inline-formula>. However, the area of the SLE10T bitcell is <inline-formula> <tex-math notation="LaTeX">$0.02~\mu \text{m}^{2}$ </tex-math></inline-formula>, which is <inline-formula> <tex-math notation="LaTeX">$1.657\times /1.318\times $ </tex-math></inline-formula> larger than the conventional 6T/8T bitcell.
MEDIATING ROLE OF PSYCHOLOGICAL EMPOWERMENT IN THE RELATIONSHIP BETWEEN INCLUSIVE LEADERSHIP AND INNOVATIVE WORK BEHAVIOR IN HEALTH CARE SECTOR

Purpose: The major purpose of this study is to investigate the mediation of psychological empowerment and on the relationship between the Independent and dependent variable i.e inclusive leadership and innovative work behavior IWB. Design/Methodology/Approach: Total 387 questionnaires are filled by the employees (nurses) working in the private hospitals of Pakistan. AMOS and SPSS is used to analyzed the data. Findings: This study reveals that their psychological empowerment mediated the relationship between inclusive leadership and innovative work behavior. The results os this study shows that there is positive relationship between inclusive leadership and innovative work behavior. Results also shows that the relationship between inclusive leaders and innovative work behavior is positively mediated by the psychological empowerment. Implications/Originality/Value: In the literature of IWB this study adds the empirically testing the mediation of psychological empowerment on Inclusive leadership – innovative work behavior link.
Regular configurations and TBR graphs

This thesis consists of two parts: The first one is concerned with the theory and applications of regular configurations; the second one is devoted to TBR graphs. In the first part, a new approach is proposed to study regular configurations, an extremal arrangement of necklaces formed by a given number of red beads and black beads. We first show that this concept is closely related to several other concepts studied in the literature, such as balanced words, maximally even sets, and the ground states in the Kawasaki-Ising model. Then we apply regular configurations to solve the (vertex) cycle packing problem for shift digraphs, a family of Cayley digraphs. TBR is one of widely used tree rearrangement operationes, and plays an important role in heuristic algorithms for phylogenetic tree reconstruction. In the second part of this thesis we study various properties of TBR graphs, a family of graphs associated with the TBR operation. To investigate the degree distribution of the TBR graphs, we also study Γ-index, a concept introduced to measure the shape of trees. As an interesting by-product, we obtain a structural characterization of good trees, a well-known family of trees that generalizes the complete binary trees.
Implementing Additive Manufacturing for Sustainability in Operations: Analysis of Enabling Factors

Additive manufacturing (AM) is heralded as a new manufacturing paradigm with significant environmental, economic, and social sustainability consequences. The purpose of this study is to identify and evaluate the sustainable enablers of AM. The research has identified 19 sustainable enablers of AM belonging to three areas: social, economic, and environmental, through an in-depth literature review. The decision-making trial and evaluation laboratory (DEMATEL) approach has been applied after taking inputs from industry experts to develop causal relationships (cause–effect diagram) and to analyze each enabler's influence. The cause–effect diagram has been developed based on threshold values. Our observations revealed that weight reduction, reduced time to market, mass customization, and personalization are the most critical enablers for sustainability. From visual representation, reduced toxicity of materials, no need for tooling, and ease of accessibility for remote part production have a substantial impact on effect enablers. This study will facilitate AM practitioners to systematically identify and prioritize essential enablers from a sustainability perspective. Practitioners should focus on these cause group enablers because it will help in controlling the effect of group enablers to improve sustainability in operations. Furthermore, insights from the study will enable policymakers to make policies leading to sustainable development. The novelty lies in identifying 19 enablers and incorporating the DEMATEL model to assess the causal relationship.
Theoretical analysis of stress of asphalt mixture bridge deck pavement based on design index

At present, the specification for the design of asphalt mixture bridge deck pavement is missing, so it is of great significance to research on it. In order to study the design theory of asphalt mixture bridge deck pavement, the bottom tensile strain of asphalt mixture layer and the permanent deformation of asphalt mixture layer as the design index of asphalt mixture bridge deck pavement have been selected. Combined with a specific simply supported slab bridge, the mechanical properties and influencing factors of asphalt mixture bridge deck pavement based on the design index have been analyzed. Firstly, the section characteristic calculation basis of fatigue checking calculation is proposed by using the standard method, and the fatigue section characteristic of simply supported solid slab bridge is analyzed. Considering different load positions, the calculation method of fatigue stress under design load and ultimate load is proposed, and the fatigue stress is calculated. According to the equal strain principle, the bottom stress of asphalt mixture is calculated. Secondly, based on the assumption of plane section, the strain calculation formula of rectangular section with two parameters under temperature load is deduced. Using the derivation formula, the stress distribution of the section under the action of uniform temperature and gradient temperature is calculated, and the general stress distribution law is obtained. Finally,take Specification for design of highway asphalt pavement (JTG D50-2017) for reference to calculate the permanent deformation of asphalt mixture bridge deck pavement; Compared with the field measured value, the theoretical calculated value is less than the field measured value, which may be related to the insufficient compaction of asphalt on the bridge deck.
Matching for Causal Inference Without Balance Checking

We address a major discrepancy in matching methods for causal inference in observational data. Since these data are typically plentiful, the goal of matching is to reduce bias and only secondarily to keep variance low. However, most matching methods seem designed for the opposite problem, guaranteeing sample size ex ante but limiting bias by controlling for covariates through reductions in the imbalance between treated and control groups only ex post and only sometimes. (The resulting practical difficulty may explain why many published applications do not check whether imbalance was reduced and so may not even be decreasing bias.) We introduce a new class of ``Monotonic Imbalance Bounding'' (MIB) matching methods that enables one to choose a fixed level of maximum imbalance, or to reduce maximum imbalance for one variable without changing it for the others. We then discuss a specific MIB method called ``Coarsened Exact Matching'' (CEM) which, unlike most existing approaches, also explicitly bounds through ex ante user choice both the degree of model dependence and the causal effect estimation error, eliminates the need for a separate procedure to restrict data to common support, meets the congruence principle, is approximately invariant to measurement error, works well with modern methods of imputation for missing data, is computationally efficient even with massive data sets, and is easy to understand and use. This method can improve causal inferences in a wide range of applications, and may be preferred for simplicity of use even when it is possible to design superior methods for particular problems. We also make available open source software which implements all our suggestions.
The role of quantum expansion in cosmic evolution

A quantum expansion parameter, analogous to the Hubble parameter in cosmology, is defined for a free particle quantum wavefunction. By considering the universe as an initial single Gaussian quantum wavepacket whose mass is that of present-day observable universe and whose size is that of the Planck Length at the Planck Time, it is demonstrated that this quantum expansion parameter has a value at the present epoch of the same order as the value of the Hubble constant. The coincidence suggests examining the effect of including this type of quantum wave expansion in traditional general relativistic cosmology and a sample model illustrating this is presented here. Using standard Einstein-de Sitter cosmology ($\Omega$m = 1) it is found that cosmic acceleration (aka dark energy) arises naturally during cosmic history. The time at which the universe switched from deceleration to acceleration (observationally ~7 Gyr before the present epoch) yields a value for the mass of the wavepacket representing the universe at the Planck Time and its present age. This same mass may then be used to obtain a curve for the cosmic expansion rate versus z. This curve is well fit to observational data. The model is used also to obtain an estimate of the inflationary expansion factor.
Segmentation of images using gradient methods and polynomial approximation

The paper presents a method for segmentation of images using region growing, with modiﬁcation through the use of a correction coefﬁcient based on the variation of intensity (brightness) in the neighborhood of the pixel of the interest. A method for the quantiﬁcation of variability is based on differences in intensity, as well as the differences in intensity gradients in the surrounding pixels [10]. Evaluation of the gradients were determined by means of numerical differentiation, using the polynomial approximation [11]. The article presents the effects of application of developed methods for segmentation of images of the brain, lungs and heart.
EVALUATING THE CALORIMETER MODEL WITH BROADBAND, CONTINUOUS SPECTRA OF STARBURST GALAXIES OBSERVED WITH THE ALLEN TELESCOPE ARRAY

Although the relationship between the far-infrared and centimeter-wave radio luminosities of normal galaxies is one of the most striking correlations in astronomy, a solid understanding of its physical basis is lacking. In one interpretation, the “calorimeter model,” rapid synchrotron cooling of cosmic ray electrons is essential in reproducing the observed linear relationship. Observed radio spectra, however, are shallower than what is expected of cooled synchrotron emission. In 2006, Thompson et al. presented a simple parameterized model to explain how relatively shallow observed spectra might arise even in the presence of rapid synchrotron cooling by accounting for ionization losses and other cooling mechanisms. During the commissioning of the 42 element Allen Telescope Array (ATA), we observed the starburst galaxies M82, NGC 253, and Arp 220 at frequencies ranging from 1 to 7 GHz, obtaining unprecedented broadband continuous radio spectra of these sources. We combine our observations with high-frequency data from the literature to separate the spectra into thermal and nonthermal components. The nonthermal components all steepen in the centimeter-wave regime and cannot be well modeled as simple power laws. The model of Thompson et al. is consistent with our M82 results when plausible parameters are chosen, and our results in fact significantly shrink the space of allowed model parameters. The model is only marginally consistent with our NGC 253 data. Assuming the Thompson et al. model, a steep electron energy injection index of p = −2.5 is ruled out in M82 and NGC 253 to >99% confidence. We describe in detail the observing procedures, calibration methods, analysis, and consistency checks used for broadband spectral observations with the ATA.
THE STRUCTURE OF HE 1104–1805 FROM INFRARED TO X-RAY

The gravitationally lensed quasar HE 1104–1805 has been observed at a variety of wavelengths ranging from the mid-infrared to X-ray for nearly 20 yr. We combine flux ratios from the literature, including recent Chandra data, with new observations from the SMARTS telescope and Hubble Space Telescope, and use them to investigate the spatial structure of the central regions using a Bayesian Monte Carlo analysis of the microlensing variability. The wide wavelength coverage allows us to constrain not only the accretion disk half-light radius r1/2, but the power-law slope ξ of the size-wavelength relation r1/2∝λξ. With a logarithmic prior on the source size, the (observed-frame) R-band half-light radius log (r1/2/cm) is , and the slope ξ is . We put upper limits on the source size in soft (0.4−1.2 keV) and hard (1.2−8 keV) X-ray bands, finding 95% upper limits on log (r1/2/cm) of 15.33 in both bands. A linear prior yields somewhat larger sizes, particularly in the X-ray bands. For comparison, the gravitational radius, using a black hole mass estimated using the Hβ line, is log (rg/cm) = 13.94. We find that the accretion disk is probably close to face-on, with cos i = 1.0 being four times more likely than cos i = 0.5. We also find probability distributions for the mean mass of the stars in the foreground lensing galaxy, the direction of the transverse peculiar velocity of the lens, and the position angle of the projected accretion disk's major axis (if not face-on).
Non-iterative blind deconvolution of colored or deterministic signals using higher order cepstra and group delay

The authors consider an unknown deterministic or nonGaussian nonwhite stochastic signal transmitted through two different unknown LTI mixed phase FIR systems with only noisy observations of the system outputs. The goal is to identify the systems and/or deconvolve the input, to within a magnitude factor and a time delay. The systems must have no zeros on the unit circle and satisfy other mild conditions on the mutual location of their zeros. Previous approaches have been iterative or assumed the input to be stochastic and white or well-separated from the channel impulse response in some sense. A new non-iterative solution is based on the observation that cepstra (calculated via higher order spectra) corresponding to two 'difference' systems which have zeros due to the minimum (or reflected maximum) phase part of the first system and poles due to the second system can be obtained. Via the group delay separated the 'difference' cepstra are into pole and zero parts and thereby the systems and/or signal are reconstructed. <<ETX>>
A Dynamic Load Balancing Method for Data Centers with Fractal Properties of Network Traffic

This paper proposes an approach to developing and studying a load balancing system for data centers with the fractal properties of network traffic. Due to such properties, it is possible to forecast reliably the occurrence of bursts and declines of network traffic on separate time intervals and periods with possible overloads on servers and network equipment. Hence, it is possible to develop methods for effective planning and distribution of tasks within a data center to ensure statistically uniform loading of its functional elements and avoid overloads. The dynamic load balancing method is based on the statistical analysis of input network traffic (distribution density, autocorrelation function, spectral density, and fractality level).