Miracle-dz/UniFAR-FTUs huggingface dataset:
An Auxiliary Resonant Pole Soft-Switching Inverter With Low Pre-Charge Current

The precharging process of the auxiliary circuit of the auxiliary resonant pole inverter increases the current stress of the switch and the loss of the inverter. To overcome these problems, this article proposes an auxiliary resonant pole soft-switching inverter with low precharging current. In contrast to the existing auxiliary resonant pole soft-switching inverter, this inverter can effectively decrease the precharging current of the auxiliary circuit, thus reducing the current stress of the switch, lowering the conduction loss of the switch, and improving the inverter efficiency. Moreover, the main switch and auxiliary switch of this inverter share a common resonant capacitor, which reduces the loss resulting from reactive energy conversion of the auxiliary commutation circuit so that the inverter achieves the purpose of simplicity and efficiency. On the basis of the equivalent circuit diagram in each operating mode, the operating mechanism of this inverter is analyzed. In addition, the soft switching conditions and the parameter optimization design method of this inverter are provided. Finally, the validity of this inverter is experimentally verified.
Non-Equilibrium Thermodynamics of Heat Transport in Superlattices, Graded Systems, and Thermal Metamaterials with Defects

In this review, we discuss a nonequilibrium thermodynamic theory for heat transport in superlattices, graded systems, and thermal metamaterials with defects. The aim is to provide researchers in nonequilibrium thermodynamics as well as material scientists with a framework to consider in a systematic way several nonequilibrium questions about current developments, which are fostering new aims in heat transport, and the techniques for achieving them, for instance, defect engineering, dislocation engineering, stress engineering, phonon engineering, and nanoengineering. We also suggest some new applications in the particular case of mobile defects.
Correlating magnetic resonance imaging characteristics with motor outcome in cerebral palsy children with white matter injury

Introduction: Cerebral palsy (CP) is the term used to describe individuals with a movement disorder resulting from non-progressive disturbance to the developing brain. The diagnosis of CP is based on the presence of a motor deficit, and they manifest with reduced motor capacity. The most widely utilized classification system for the severity of motor limitations is the gross motor function classification system (GMFCS). Material and Methods: We tried to describe the white matter injury on Magnetic Resonance Imaging (MRI) in children with cerebral palsy irrespective of clinical subtype. We also studied if there was association between white matter injury on MRI in children with cerebral palsy and motor outcomes-gross motor function classification system Expanded and Revised(GMFCS E &R). It was an observational, Cross sectional Descriptive study with analytical wing aged between 6 months to 12 years of age carried out for 8 months. Children diagnosed to have cerebral palsy on history and clinical examination were enrolled in the study. Results: A total of 50 children diagnosed with cerebral palsy were enrolled in our study. Majority of the study sample were <5years old (29) and males (31). We found that symmetrical involvement, severe white matter loss in the hemisphere and callosal thinning were the strongest predictors of poor gross motor function. Bilateral, extensive WM (white matter) loss was more likely to result in quadriplegia, whereas volume loss in the posterior-mid WM more frequently resulted in diplegia. Asymmetrical involvement was associated with less extensive hemispheric involvement than symmetrical WMI (White matter injury). Cysts, deep grey abnormality, and Wallerian change in the PLIC (Posterior limb of Internal Capsule) and cerebral peduncles were all more commonly seen in association with unilateral and asymmetric patterns of WMI. All children with unilateral WMI functioned at GMFCS levels I or II or III whereas bilateral involvement was associated with wheeled mobility (GMFCS levels IV–V). Motor outcomes for children with asymmetrical WMI fell between those with symmetrical and unilateral WMI on MRI. Conclusion: Laterality/ symmetry of WMI along with extent and location of WM loss can predict gross motor function in Cerebral palsy.
An Approximation for BER of Optical Wireless System under Weak Atmospheric Turbulence using Point Estimate

Abstract Obtaining analytically closed-form expression for bit error rate (BER) of an optical wireless communication (OWC) system under weak atmospheric turbulence is extremely difficult and intractable. In this paper, a simple closed-form approximate expression for average BER of OWC system under weak turbulence condition is obtained using point estimate method. The proposed expression is used to compute the BER for on-off keying (OOK) and sub carrier intensity modulated (SIM) binary phase shift keying (BPSK) modulation schemes. Results obtained using proposed expression are compared with those obtained using Gauss-Hermite quadrature approximation and Monte-Carlo simulations.
Timing measurement and simulation of the activation process in gigabit passive optical networks

The passive optical networks are widely used nowadays. Service providers have many customers in their distribution networks. The most important thing for communication between the end unit and the control unit is an establishment contact. Design and measurement of the activation process between optical network unit and optical line termination is presented. In general, the service providers have a big split ratio (up to 1:128) due to the connection eminent value of the customers per optical line termination port in chassis. We present the simulation of the connection process for 16, 32, 64, and 128 optical network units and the measurement for single optical network unit (the GPON Xpert is able to read a single connection process). We compare our results in simulation discussion.
Circulating circRNA: a social butterfly in tumors

Circular RNAs (circRNAs) are a class of single-stranded non-coding RNAs that form circular structures through irregular splicing or post-splicing events. CircRNAs are abnormally expressed in many cancers and regulate the occurrence and development of tumors. Circulating circRNAs are cell-free circRNAs present in peripheral blood, they are considered promising biomarkers due to their high stability. In recent years, more and more studies have revealed that circulating circRNAs participate in various cellular communication and regulate the occurrence and development of tumors, which involve many pathological processes such as tumorigenesis, tumor-related immunity, tumor angiogenesis, and tumor metastasis. Understanding the role of cell communication mediated by circulating circRNAs in tumor will further reveal the value and significance behind their use as biomarkers and potential therapeutic targets. In this review, we summarize the recent findings and provide an overview of the cell-cell communication mediated by circulating circRNAs, aiming to explore the role and application value of circulating circRNAs in tumors.
Smooth spline wavelets on the sphere

The lifting scheme provides an easy way to construct wavelet bases on manifolds of arbitrary topological type. In this paper we use a standard two-step lifted wavelet transform to construct spherical Powell–Sabin (PS) spline wavelets. The first lifting step or prediction step consists of a PS spline subdivision scheme that is based on √ 3 refinement of the underlying spherical triangulation. The second lifting step or update step is used to achieve certain properties for the wavelets such as a vanishing moment and approximate semi-orthogonality. §1. Spherical Powell–Sabin splines In a series of papers [1, 2, 3], Alfeld et al. develop spline spaces on triangulations on the sphere analogous to the classical spline spaces on planar triangulations. The idea is to work with homogeneous Bernstein–Bézier polynomials in R which are then restricted to the sphere. A function f defined on R is homogeneous of degree d provided that f(αv) = αf(v) for all real α and all v ∈ R. The space Hd of trivariate polynomials of degree d that are homogeneous of degree d is a ( d+2 2 ) dimensional subspace of the space of trivariate polymials of degree d. If we restrict Hd to any hyperplane H in R \ {0}, then we just recover the well-known space of bivariate polynomials on H . Similarly, let Ω be any subset of the unit sphere S, then we define Hd(Ω) as the restriction of Hd to Ω and we refer to it as the space of spherical polynomials of degree d on Ω. Let ∆ be a conforming spherical triangulation of Ω ⊆ S, cfr. [12]. Then we define the space of spherical splines of degree d and smoothness r associated with ∆ as S d(∆) := {s ∈ C(S) | s|τ ∈ Hd(τ), τ ∈ ∆}, where s|τ denotes the restriction of s to the spherical triangle τ . In general, maintaining C continuity conditions between neighbouring triangles results in non-trivial relations, see, e.g., [6]. Therefore, to Conference Title 1 Editors pp. 1–6. Copyright Oc 2005 by Nashboro Press, Brentwood, TN. ISBN 0-0-9728482-x-x All rights of reproduction in any form reserved.
Differences in the Breastfeeding Babies Anthropometic Status Based on the Practice of Mothers Consuming Torbangun (Coleus Amboinicus Lour) Leaves in Toba Regency

Torbangun leaves (coleus ambonicus lour) are a typical food in Toba Regency that can increase the secretion rate and volume of breast milk production. It is assumed that the existence of lactagogum can increase the achievement of breast milk coverage, but in contrast to the achievement of exclusive breastfeeding, it is still below the national target of 24.3% in Toba Regency.The purpose of this study was to analyze differences in the anthropometric status of breastfeeding babies based on the practice of mothers consuming and building in Toba Regency. The observational research method with a prospective cohort design with an observation time of two months with three anthropometric status measurements was carried out in May-July 2022. The research samples amounted to 226 people, divided into 2 groups, namely babies from mothers who consumed torbangun leaves and babies from mothers who did not consume. Determination of research samples with multistage random, data analysis using independent t-tests and mann-whitney tests. The results of the study did not have a difference in anthropometric status based on the z-score index WAZ (p=0.251), HAZ(p=0.305),WHZ(p=0.373) between babies from mothers who consumed torbangun leaves and babies from mothers who did not consume. Overall, the anthropometric status of the study subjects was between Z scores ≥-2 SD and ≤ 2 SD. It was concluded that there was no significant difference in anthropometric status based on the z-scores of WAZ, HAZ and WHZ.
Confecção de um modelo mecânico análogo para o estudo do Movimento Browniano e da Difusão Molecular

Neste artigo é descrita a montagem de um sistema mecânico que simula o processo de propagação estocástica de uma partícula browniana em um fluido. O sistema consta de um oscilador mecânico que agita constantemente um recipiente onde pequenas partículas de um “fluido” são depositadas e se mantém em movimento. Dentro deste “fluido”, uma outra partícula browniana (maior) é inserida sobre a qual as pequenas partículas do fluido exercem forças estocásticas. O movimento em zigue-zague das partículas brownianas é analisado mediante a filmagem do movimento e pela utilização do software Tracker para o estudo das imagens. Os resultados denotam um excelente acordo entre as previsões da teoria do movimento browniano e o experimento proposto. A vantagem de induzir desta forma os conceitos do movimento browniano e da difusão molecular é que se pode observar ao olho nu este fenômeno acontecendo e sua visualização pode ajudar na melhor compreensão desses conceitos.
A MULTISCALE GEOMATIC APPROACH FOR THE SURVEY OF HISTORIC CENTRES MAIN STREETS: THE CASE STUDY OF CAPITIGNANO, ITALY

: The aim of this research is the identification of geomatics techniques and methods capable of representing historic centres in a rapid, detailed and accurate manner. Indeed, historic centres are a cultural heritage asset to be preserved, protected and conserved for future generations, taking into account the history of a community. The paper describes a geomatics methodology applied to the case study of Capitignano (Italy), one of the municipalities that was affected by the 2009 earthquake that involved numerous historic centres causing extensive damage, not only in terms of human lives but also to the cultural heritage. The integration of geomatics techniques made it possible to obtain a georeferenced point cloud that is particularly useful for the description of buildings in historic centres, both at the urban scale and at the scale of individual artefacts. In addition, it was also possible to produce orthophotos with a high geometric resolution that made it possible to identify lesions in structures quickly and accurately.
High-Efficiency GaN Frequency Doubler Based on Thermal Resistance Analysis for Continuous Wave Input

Compared to GaAs Schottky barrier diode (SBD), GaN SBD exhibits higher power handling capabilities and superior heat dissipation properties when used on high thermal conductivity SiC substrates. However, high-power continuous wave (CW) input causes a temperature rise and reduces performance in GaN-based frequency doublers. This article proposes a solution considering the thermal resistance of the SBD and using AlN as the dielectric substrate under high-power input. Furthermore, extending the metal to the ground minimizes assembly errors and guarantees consistency between simulation and experiment. The experimental results reveal the significant potential of GaN materials. With an input power of 646 mW in CW mode, a remarkable output power of 101.1 mW was achieved with only four anodes. Furthermore, at an input power of 440 mW, the frequency conversion efficiency peaked at 19% at 141 GHz. This notable achievement surpasses the performance of the existing GaN-based doublers and expands the operational capabilities to CW operation.
High-sensitivity crossed-resonator laser apparatus for improved tests of Lorentz invariance and of space-time fluctuations

We describe an improved Michelson-Morley-type laser apparatus for highly sensitive tests of Lorentz invariance in the electron and photon sectors. The realization of an ultrastable rotation table reduced by more than one order systematic effects occurring with the rotation period. We also reduced by one order the noise level, resulting in integration times smaller by more than one order. Under reasonable assumptions, we determine five coefficients of the standard model extension test theory, with uncertainties similar to the previous best experiments, but with a 30 times shorter data acquisition time span. Four coefficients are consistent with zero at the ð4–8Þ × 10−18 level, while one, ð~ κe−Þ ≃ 5 × 10−17, appears to be caused by unidentified systematic effects. In addition, the apparatus’ performance leads to a limit for the strength of (hypothetical) space-time fluctuations improved by a factor of 3.7.
COMPARISON OF RELIABILITY COEFFICIENTS OF TESTS CONSTRUCTED USING DIFFERENT ORDERINGS OF DIFFICULTY OF TEST ITEMS

The study compared reliability coefficients of tests constructed using different orderings of difficulties of test items for English language and Mathematics in the North-East, Nigeria. Experimental research design was adopted. The population of the study comprised all the 5,403 JSS 3 students of 2021/2022 academic session in the fifteen Unity schools of the zone. The sample used for experimental study consisted of three hundred and seventy-five students obtained through a combination of multi-stage and cluster sampling techniques. Two instruments (one for each of the subjects) were used for the study. Each instrument was prepared in three different formats, titled: Mathematic Achievement Test and English Language Achievement Test. Each format of the instruments was subjected to test-retest reliability. Method of data analysis was Pearson Product Moment Correlation coefficient (PPMC). The reliability estimate that were obtained from the mathematics multiple-choice questions are as follows: FORMAT ETD (0.512), DTE (0.849) and MDI (0.718). The reliability estimate that were obtained from the English language multiple-choice questions are as follows: FORMAT ETD ETD (0.728), DTE (0.669) and MDI (0.877). The study recommends that for English Language, items ordered from easy to difficult format should be used when constructing test items; since it was the one that had the highest reliability coefficient; for Mathematics items format from difficulty to easy should be used since it has the highest reliability coefficient among the test items format.
Correlates of compulsive use of social media and academic performance decrement: A stress-strain-outcome approach

Social media users feel overwhelmed by the amount of information inundated by followers and friends they have on various platforms of social media. They devote a lot of time to maintaining these online connections. This causes social media fatigue and poses a serious risk to social media users' wellbeing and productivity. Students could become victims of compulsive social media usage, which could lead to a decline in their academic performance. With the help of the stress-strain-outcome framework, this study attempts to establish the indirect relationship between compulsive use of social media and academic performance decrement via social media fatigue. Further, this study examined the moderating role of self-control (SC) in the relationship between social media fatigue and its negative effect on academic outcomes, which has not been analyzed so far. The effect of moderated mediation was assessed using the PROCESS Macro. The findings of the study suggest the mediating role of social media fatigue between compulsive use of social media and academic performance decrement. Further, the moderating role of self-control was established between social media fatigue and academic performance decline. The originality of the study lies in associating social media fatigue with decrement in academic performance and showing how self-control is helpful in mitigating its effects. This analysis can be insightful for students and educators who tend to ignore the negative impact of students' over-reliance on social media on their academic performance. The findings suggest that social media overuse by students requires self-regulation and requires careful scrutiny by educators in creating appropriate solutions to lessen social media's detrimental influence on higher education. The research provides useful recommendations for self-control on social media usage behavior.
Torsion Subcomplex Reduction

/ R´esum´e. Cette th`ese d´ecrit des travaux qui incorporent une technique appel´ee la r´eduction des sous-complexes de torsion (RST), et qui a ´et´e d´evelopp´ee par l’auteur pour calculer la torsion dans la cohomologie de groupes discrets agissant sur des complexes cellulaires convenables. La RST permet de s’´epargner des calculs sur la machine sur les complexes cellulaires, et d’acc´eder directement aux sous-complexes de torsion r´eduits, ce qui produit des r´esultats sur la cohomologie de groupes de matrices en termes de formules. La RST a d´ej`a donn´e des formules g´en´erales pour la cohomologie des groupes de Coxeter t´etra´edraux, et, pour torsion impaire, de groupes SL 2 sur des entiers dans des corps de nombres arbitraires (en collaboration avec M. Wendt). Ces derni`eres formules ont permis `a Wendt et l’auteur de raﬃner la conjecture de Quillen. D’ailleurs, des progr`es ont ´et´e faits pour adapter la RST aux calculs de l’homologie de Bredon. En particulier pour les groupes de Bianchi, donnant toute leur K -homologie ´equivariante et, par le morphisme d’assemblage de Baum–Connes, la K -th´eorie de leur C ∗ -alg`ebres reduites, qui serait tr`es dure `a calculer directement. Abstract. This thesis describes works involving a technique called Torsion Subcomplex Reduction (TSR), which was developed by the author for computing torsion in the cohomology of discrete groups acting on suitable cell complexes. TSR enables one to skip machine computations on cell complexes, and to access directly the reduced torsion subcomplexes, which yields results on the cohomology of matrix groups in terms of formulas. TSR has already yielded general formulas for the cohomology of the tetrahedral Coxeter groups as well as, at odd torsion, of SL 2 groups over arbitrary number rings (in joint work of M. Wendt and the author). The latter formulas have allowed Wendt and the author to reﬁne the Quillen conjecture. Furthermore, Bianchi their equivariant K and, by the Baum–Connes assembly map, the K -theory of their reduced C ∗ -algebras, which would be very hard to compute directly. As a side application, TSR has allowed the author to provide dimension formulas for the Chen–Ruan orbifold cohomology of the complexiﬁed Bianchi orbifolds, and to prove (jointly with F. Perroni) Ruan’s crepant resolution conjecture for all complexiﬁed Bianchi orbifolds. group homology Bianchi of K of Bianchi is by the their C in terms of of their K
Inference for Additive Models in the Presence of Infinite Dimensional Nuisance Parameters

A framework for estimation and hypothesis testing of functional restrictions against general alternatives is proposed. The parameter space is a reproducing kernel Hilbert space (RKHS). The null hypothesis does not necessarily define a parametric model. The test allows us to deal with infinite dimensional nuisance parameters. The methodology is based on a moment equation similar in spirit to the construction of the efficient score in semiparametric statistics. The feasible version of such moment equation requires to consistently estimate projections in the space of RKHS and it is shown that this is possible using the proposed approach. This allows us to derive some tractable asymptotic theory and critical values by fast simulation. Simulation results show that the finite sample performance of the test is consistent with the asymptotics and that ignoring the effect of nuisance parameters highly distorts the size of the tests.
A Review on the Fault and Defect Diagnosis of Lithium-Ion Battery for Electric Vehicles

The battery system, as the core energy storage device of new energy vehicles, faces increasing safety issues and threats. An accurate and robust fault diagnosis technique is crucial to guarantee the safe, reliable, and robust operation of lithium-ion batteries. However, in battery systems, various faults are difficult to diagnose and isolate due to their similar features and internal coupling relationships. In this paper, the current research of advanced battery system fault diagnosis technology is reviewed. Firstly, the existing types of battery faults are introduced in detail, where cell faults include progressive and sudden faults, and system faults include a sensor, management system, and connection component faults. Then, the fault mechanisms are described, including overcharge, overdischarge, overheat, overcool, large rate charge and discharge, and inconsistency. The existing fault diagnosis methods are divided into four main types. The current research and development of model-based, data-driven, knowledge-based, and statistical analysis-based methods for fault diagnosis are summarized. Finally, the future development trend of battery fault diagnosis technology is prospected. This paper provides a comprehensive insight into the fault and defect diagnosis of lithium-ion batteries for electric vehicles, aiming to promote the further development of new energy vehicles.