Miracle-dz/UniFAR-FTUs huggingface dataset:
A New Simplified Method and Design Guidelines for the Optimization of Push–Pull Class $\Phi _{2}$ Converters for Wireless Power Transfer Applications

The complicated resonant operations of class <inline-formula><tex-math notation="LaTeX">${\Phi} _{2}$</tex-math></inline-formula> topology bring challenges for accurate design and performance optimization, hindering the full utilization potential of converters. Considering the narrow design freedom in traditional methods with almost fixed duty cycle <inline-formula><tex-math notation="LaTeX">$D$</tex-math></inline-formula>, this article widens the design options of push–pull class <inline-formula><tex-math notation="LaTeX">${\Phi} _{2}$</tex-math></inline-formula> converters through frequency-harmonic analysis. A full selection freedom of <inline-formula><tex-math notation="LaTeX">$D\in (0,0.5)$</tex-math></inline-formula> is discussed analytically, providing ample space for optimization based on any required performance indices. From 1.98E5 analytical results, we found six numerical equations that fully decouple the interconnected relations between each circuit parameter and <inline-formula><tex-math notation="LaTeX">$D$</tex-math></inline-formula>. The proposed numerical method allows rapid circuit design and component selection with a high accuracy regardless of the system power or load voltage. Parasitic effects are discussed and incorporated into the design approach as correction steps. Finally, we introduce performance analysis based on an example wireless power transfer (WPT) system, providing in-depth studies on the optimization regarding efficiency, power output capability, and component selection. Experimental results validate the accuracy and efficiency of the proposed design method based on a 100-W WPT system at 6.78 MHz frequency. Both inverter and rectifier present load-independent soft-switching operations, with converter efficiency over 93%. The system provides 83% dc–dc efficiency at full load.
Middle Infrared SpectropolarJmetry of Eta Carinae.

Abstract Spectropolarimetric observations of the 10 arc second region surrounding Eta Carinae have been made in the 8-13 μm wavelength band. The observed polarization, of a few percent, is due to emission of radiation from aligned grains. The radial position angle of the polarization suggests that gas streaming is responsible for the grain alignment.
A Numerical Analysis for Ball End Milling Due to Coupling Effects of a Flexible Rotor-Bearing System Using GPEM

In this paper, the tool-tip responses for ball end milling, due to the coupling effects of a flexible rotor-bearing system, are investigated numerically. The milling machine tool spindle is modelled as the flexible rotor-bearing system. The critical speeds, natural modes, and unbalance responses of the system are calculated by applying the generalized polynomial expansion method. This generalized polynomial expansion method expresses the displacement as a series formed by the product of generalized coordinates and axial coordinate polynomials. According to the dynamic cutting force obtained by some scholars in the past, combined with the characteristics of the flexible rotor, the dynamic response of the tool-tip for ball end milling is numerically analyzed. The responses, including time histories, orbits, and FFT diagrams, are plotted to analyze the dynamic behaviors of the tool-tip. The coupling effects of the flexible rotor-bearing system on the system for ball end milling are first studied using the generalized polynomial expansion method. Unlike previous studies, the natural frequency varies with spindle speed and which of the different modes are included in the tool-tip response depends mainly on the spindle speed. Thanks to the gyroscopic effect, the critical speeds and responses of tool-tips can be discussed with respect to various spindle speed and tool flutes. The natural modes are accurately determined, and will excite critical speeds for certain modes, including forward and backward modes, thereby significantly affecting tool-tip response. In addition, the cutting force component associated with the tool-tip response affects the rotor-bearing system parameters, complicating the issue. Milling at higher spindle speed (2160–19,950 rpm), an important new result is found that the tool-tip oscillates with the cutting-force frequency, accompanied by a longer period vibration of the first backward mode of the rotor-bearing system. It can also be seen from the frequency spectrum analysis that, as the spindle speed increases, the peak amplitude of the first backward mode becomes larger. Milling at lower spindle speed (960, 1320 rpm), the in-plane vibration trajectory of the tool-tip gradually expands outwards clockwise around the origin until a stable loop is reached. This is because only the first backward mode of the rotor-bearing system is excited. Considering the coupling effect of the rotor-bearing system to perform the vibration analysis of the milling machine system, the parameters of the system can be designed or the spindle speed can be selected to avoid severe vibration during machining.
Numerical Simulation of Supersonic Twin-Jet Noise with High-Order Finite Difference Scheme

In this study, the noise generated from a cold supersonic circular twin jet is simulated with a high-order finite difference solver. The three-dimensional compressible Favre-filtered Navier–Stokes equations in Cartesian form are solved by computational aeroacoustics methods. To handle the complex geometry of two closely spaced circular nozzles, the grid block interface flux reconstruction method for high-order finite difference scheme is used. The supersonic twin jet with fully expanded Mach number 1.358 is simulated in this study. A single jet operating at the same condition is also computed for comparison. It is found that the two coupling jets are both oscillating in flapping mode but out of phase with each other. Therefore the near-field pressure is symmetric about two planes, the midplane separating the two nozzles and the plane involving the two jets’ axes. The computed noise spectra are compared with the experimental data of Walker [“Twin Jet Screech Suppression Concepts Tested for 4.7% Axisymmetri.
A Fixed Point Theorem for Generalized Ćirić-Type Contraction in Kaleva-Seikkala's Type Fuzzy b-Metric Spaces

In this paper, we state and establish a new fixed point theorem for generalized Ćirić-type contraction in Kaleva-Seikkala’s type fuzzy b-metric space. Our results improve and extend some well-known results in the literature. Some examples are given to support our result. Finally, as an application, we show the existence and uniqueness of solution to Volterra integral equation formulated in Kaleva–Seikkala’s type fuzzy b-metric space.
Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

Integral operator-based theory of characteristic modes (CMs) for conducting, material, and lossy structures is reviewed. CMs are defined as solutions of a generalized eigenvalue equation (GEE). These GEEs are presented for various surface and volume integral operators (VIOs) and material structures. Interpretation of the characteristic eigenvalues in terms of electromagnetic power is studied based on the Mie expansion and integral operator formalism. Orthogonality and diagonalizing properties of the CMs are summarized. Challenges related to dielectric-magnetic bodies, lossy structures, and spurious modes are discussed, as well as differences between the surface and volume operator approaches.
Impact of Price and Promotion on The Consumer's Buying Behavior in The Metropolitan Region of Bandung

The present research endeavors to examine the impact of price and promotion on the consumer's buying behavior in the metropolitan region of Bandung. The study employs path analysis to establish that consumer choices are significantly influenced by both price and promotion. The study's sample comprises 81 customers, which accounts for 7% of the total transactions that occurred in 2019. The influence of price on consumer purchase decisions is positively correlated, whereas promotion has both a direct and indirect positive impact. The present findings are consistent with prior research, emphasizing the crucial significance of price and promotion in influencing consumer behavior. The findings have led to the formulation of suggestions for enterprises that are functioning in the region of Bandung. It is recommended to perform a thorough examination of diverse pricing benchmarks in order to evaluate competitiveness and the consumer's value proposition. It is advisable to allocate resources towards efficacious promotional strategies in order to augment consumer awareness and stimulate interest in products. The implementation of successful promotional strategies has the potential to exert a favorable impact on the purchasing behavior of consumers. Additional research could delve into alternative factors that may influence consumer decision-making, thereby augmenting comprehension of consumer behavior through the inclusion of supplementary variables. The research acknowledges a number of constraints. The study exclusively centers on the influence of price and promotion in relation to purchase behavior, disregarding other variables such as product excellence, brand image, and customer support. Subsequent studies may consider incorporating these variables to conduct a more thorough analysis. Notwithstanding the aforementioned constraints, this research offers significant perspectives for enterprises in Bandung to guide their pricing and promotional approaches.
EFEKTIVITAS FORTIFIKASI EKSTRAK DAUN KELOR (Moringa oleifera) TERHADAP PENINGKATAN NUTRISI DAN KELAYAKAN USAHA PRODUK TEMPE DI KABUPATEN BANYUWANGI

Penelitian ini bertujuan untuk mengetahui ekeftivitas forttifikasi ekstrak daun kelor terhadap peningkatan nutrisi dan kelayakan usaha produk tempe. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) 4 perlakuan yaitu T1 (tanpa perlakuan/kontrol), T2 (Penambahan ektrak daun kelor 2%), T3 (Penambahan ekstrak daun kelor 5%), T4 (Penambahan ekstrak daun kelor 10%) dengan parameter yang dilihat adalah kadar protein, lemak, abu, dan air, serta menganalisis aspek finansial pada usaha tempe yang direkomendasikan meliputi R/C Ratio, B/C Ratio, BEP, dan Payback Period. Hasil penelitian menunjukan semakin banyak penambahan ekstrak daun kelor akan berpengaruh dengan penurunan kandungan kadar protein, kadar abu dan peningkatan kadar lemak dan kadar air pada tempe. Sedangkan aspek finansial pada usaha tempe yang telah direkomendasikan menyatakan layak untuk diusahakan, jika melihat dari B/C Ratio dengan hasil 1,17, Nilai R/C Ratio dengan hasil 2,17, BEP Unit dan Rupiah sebesar 5538 Unit dan Rp 692 dengan nilai Payback Period 0,04. Kata Kunci: Uji Kandungan Gizi, Kelayakan Usaha, Tempe, Kelor
The Effect of an Instructional Program Based on Multiple Intelligences on Jordanian EFL Students’ Speaking Skills

Purpose: This study investigates the effect of an instructional program based on Multiple Intelligences on Jordanian EFL students’ speaking skills. Methods: The participants were two classroom sections of seven grade students in Success Story School in Irbid, who were distributed into two groups; control and experimental. The experimental group was taught the speaking skills through a Multiple Intelligences-Based instructional program while the control group was taught though the conventional method. Findings: A pre-post-test was developed by the researchers and was distributed to the participants of the experimental group to find out the the effect and the academic significance of the Multiple Intelligences instructional program on their speaking skills. The results showed that there are statistically significant differences at (a= 0.05) in the post speaking skills test scores due to the teaching method in favour of the experimental group (Multiple Intelligences). This study recommends that Multiple Intelligences be integrated into the EFL classroom to improve students’ speaking skills. Practical Implications: The results of the study would be of assistance to school teachers. The positive effect of an instructional program paves the way for more incorporation of technology-based teaching. Originality/Value: This study is different from previous studies in the sense that it investigates the effect of three intelligences; verbal, interpersonal, and intrapersonal intelligences, on three speaking subskills; vocabulary, grammar, and pronunciation, in contrast to other studies which investigate the effect of multiple intelligences on speaking skill in general.
Prevalence of Sleep Aid Medication Use in Patients Receiving a Hematopoietic Cell Transplant on an Inpatient Unit.

BACKGROUND AND OBJECTIVES There is a lack of research regarding the use of sleep aids after hematopoietic stem cell transplantation (HCT). We describe the prevalence of sleep aid administration in the HCT unit and identify associations with patient or clinical characteristics. PATIENTS AND METHODS In this retrospective analysis of sequential inpatient HCTs from July 1 to December 31, 2016 we describe whether and when patients were prescribed sleep aid medications. Chi-square tests determined significant differences between patient characteristics, sleep aid prescription, and time of prescription. RESULTS Of the 225 patients identified, 193 (86%) were prescribed sleep aids. Significantly more women received prescriptions for sleep aids (90.4%) than men (81%; P = .047). One hundred patients (44%) received prescriptions exclusively while in the hospital. CONCLUSION Findings show a high prevalence of sleep medication use in patients undergoing inpatient HCT, primarily during hospitalization. Future efforts toward standardized recommendations to optimize peri-transplant sleep would help clinicians and patients.
A Genuine Application of Synthetic Division, Descartes' Rule of Signs, and All That Stuff

Dwight Freund, born in California, drifted eastward, earning a doctorate in applied math and computer science under R. E. Meyer at the University of Wisconsin. Following stints in England and Wisconsin, he now finds himself teaching computer science at California State University, Sacramento. His interests range from computer-aided geometric design to orienteering, with foraging and computing theory in there as time permits. He has not yet used any of the techniques described here to analyze his own investments.
Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

Due to the widespread use of low-power embedded devices in both industrial and consumer applications, research into the use of alternate energy sources has been sparked by the requirement for continuous power. Due to its accessibility and ability to be implanted, RF energy is always taken into consideration among the traditional energy sources that are currently available. There is a significant necessity for efficient RF front-ends, which must provide effective circular polarization (CP) features, effectiveness, feasibility from a design standpoint, and optimal usage of ambient RF signals accessible in the environment. So, for understanding their utilization in RF energy harvesting, a metasurface reflector-inspired CP-printed reconfigurable antenna integrated with a Greinacher voltage divider (GVD) rectifier circuit is reported. It offers broadband CP with fractional bandwidth > 25%, CP gain > 8.35 dBic, and directional radiation with the 3 dB angular beamwidth > 100° in the 3.5/5 GHz bands. With the integration of the rectifier circuit, a theoretical DC output > 4.8 V at 12 dBm is obtained. The acceptable impedance bandwidth, axial ratio bandwidth, antenna gain, antenna efficiency, and directional radiation with a 3 dB angular beamwidth value are studied and subsequently matched with the trade-offs (usage of diodes, complexity of DC biasing circuits, and attainment of polarization reconfigurability) obtained from the state of the art. A comprehensive study of the reconfigurable antennas is reported to highlight the findings as a widespread solution for these limitations in RF energy harvesting application.
Epidemiological evidence on drinking water salinity and blood pressure: a scoping review

In addition to diet, drinking water can be an important contributor to the total body burden of salts. Water salinity (defined as the amount of dissolved salts in a body of water) has been associated with adverse health effects. We mapped the current research on drinking water salinity and its effects on blood pressure (BP). We aimed to identify knowledge gaps in the methodology and tools used in the epidemiological literature to address water salinity effects on BP. We performed a scoping review of epidemiological studies by searching PubMed and Web of Science databases from 1980 to 2022. Reviews, study comparisons, meta-analyses, commentaries, viewpoints, correspondence, protocols, studies in clinical settings, animal or in vitro studies, or not in English, were excluded. Epidemiologic studies including systolic/diastolic BP and/or the risk of hypertension as the main health outcome and drinking water salts (sodium, potassium, calcium, magnesium, including electrical conductivity and total dissolved solids) as the main exposures were included. After screening 246 articles, 29 articles were retained. Most studies were conducted in Bangladesh and USA (n = 9 and n = 9, respectively). The majority of studies were cross-sectional (n = 18; 62%). The study populations were adults (55%) or children (35%) or both (10%). Only eight (28%) studies did not collect urine samples and only three studies (10%) did not record participant BP. About half of the studies (n = 15, 52%) reported a positive significant (p < 0.05) association between salts in drinking water and higher BP and/or risk of hypertension; while 24% and 24% reported non-significant (p > 0.05) and significant (p < 0.05) negative associations (with lower BP mainly attributed to higher Mg, Ca, and K (rather than Na) levels in drinking water). More longitudinal studies are warranted to investigate the impact of drinking water salinization on cardiovascular health and risk of hypertension. Under a changing climate, this may be particularly important for coastal populations, as sea level rise in combination with the overexploitation of groundwater would differentially perturb the salinity of their drinking water supplies.
Emergent geometry, torsion and anomalies in non-relativistic topological matter

I review and discuss aspects of the interplay of emergent geometry and anomalies in topological semimetals and insulators, focusing on effects of torsion. This correspondence identifies torsional topological responses in terms of anomalies and anomaly related hydrodynamic phenomena involving gauge fields and geometry. I discuss how torsional emergent geometry arises from elastic deformations in crystalline materials and how this background couples to thee low-energy continuum models inherited from lattice models, utilizing the semiclassical expansion. Via the coupling of momentum space topology and emergent vielbein geometry, non-relativistic topological matter can realise new geometrical responses of mixed gauge-gravitational character. The topological low-energy torsional responses depend momentum space geometry, lattice momenta and the regularization and UV completion, provided by the non-relativistic physics and symmetries of topological materials.
The role of flavin mononucleotide (FMN) as a potentially clinically relevant biomarker to predict the quality of kidney grafts during hypothermic (oxygenated) machine perfusion

Hypothermic machine perfusion (HMP) provides preservation superior to cold storage and may allow for organ assessment prior to transplantation. Since flavin mononucleotide (FMN) in perfusate has been proposed as a biomarker of organ quality during HMP of donor livers, the aim of this study was to validate FMN as a biomarker for organ quality in the context of HMP preserved kidneys. Perfusate samples (n = 422) from the paired randomised controlled COPE-COMPARE-trial, comparing HMP with oxygenation (HMPO2) versus standard HMP in kidneys, were used. Fluorescence intensity (FI) was assessed using fluorescence spectroscopy (excitation 450nm; emission 500-600nm) and validated by fluorospectrophotometer and targeted liquid chromatography mass spectrometry (LC-MS/MS). Fluorescence intensity (FI)(ex450;em500-600) increased over time during machine perfusion in both groups (p<0.0001). This increase was similar for both groups (p = 0.83). No correlation, however, was found between FI(ex450;em500-600) and post-transplant outcomes, including day 5 or 7 serum creatinine (p = 0.11; p = 0.16), immediate graft function (p = 0.91), creatinine clearance and biopsy-proven rejection at one year (p = 0.14; p = 0.59). LC-MS/MS validation experiments of samples detected FMN in only one perfusate sample, whilst the majority of samples with the highest fluorescence (n = 37/38, 97.4%) remained negative. In the context of clinical kidney HMP, fluorescence spectroscopy unfortunately appears to be not specific and probably unsuitable for FMN. This study shows that FMN does not classify as a clinically relevant predictive biomarker of kidney graft function after transplantation.
Systemic sclerosis with interstitial lung disease and myocardial infarction: a case report

Introduction and importance: Systemic sclerosis (SSc) is a rare autoimmune connective tissue disorder that causes fibrosis due to an accelerated inflammatory response. One of the most frequent co-morbidities with SSc is interstitial lung disease (ILD), which is also one of the biggest killers among SSc patients. Case presentation: The authors present a rare case of diffuse SSc with ILD and myocardial infarction having a history of Raynaud phenomenon, skin thickening, and shortness of breath. Antinuclear antibody and antitopoisomerase antibody tests were positive. The patient was managed medically and the condition of patient is improving. Clinical discussion: SSC can affect the skin as well as other organs, with the lungs being the most frequently involved and seriously impacted. SSc patients can have multiple organ involvement like the skin, lungs, heart, kidneys, and gastrointestinal tract. Because ILD is the leading cause of death among people with SSC, early diagnosis and high suspicion of lung involvement can reduce mortality. Conclusion: The mortality rate for SSC associated with ILD is extremely high. Even though ILD is common in SSc, it might be difficult to identify and detect early for which a high-resolution CT scan can be used. In SSc patients, heart involvement can coexist with ILD.