bluuebunny/crossref_metadata_2025_split huggingface dataset:
Topas‐based octa‐circular cladding and rectangular porous core photonic crystal fibre for terahertz waveguide
Authors: Mustafa Zareen , Islam Mohammad Rakibul , Islam Md. Aminul , Hamid Nafiz Imtiaz Bin 
Published: June 2023

AbstractThis article presents a novel design for guiding terahertz (THz) waves, which utilises a photonic crystal fibre with a porous core (PC‐PCF). This approach is substantiated by a Topas‐based octagonal‐shaped core with rectangular air slots. By utilising Finite Element Method and Perfectly Matched Layer boundary condition, the guiding properties of a structure consisting of octagonal air holes integrated with circular air slots in the cladding region have been investigated. The proposed structure exhibits a birefringence value of 0.05 and a low effective material loss of 0.013 cm−1. Moreover, it exhibits flattened dispersion measuring at a wide‐ranging frequency of 0.4 to 1.6 THz. In addition to that, the proposed structure offers 60% high core power fraction, 10−18 cm−1 confinement loss at 65% porosity of 290 μm core diameter and 1.6 THz frequency. Other significant waveguide properties: effective refractive index, effective area, spot size, and beam divergence of the proposed fibre are numerically analysed and discussed rigorously along with the fabrication viability of the fibre with existing techniques.
[C I] and [C II] emission in the circumstellar envelope of IRC +10216
Authors: Jeste M. , Wiesemeyer H. , Menten K. M. , Wyrowski F. 
Published: June 2023

Context. The envelopes of evolved late-type stars on the asymptotic giant branch are characterised by a complex chemistry that is close to thermochemical equilibrium near the stellar surface; however, in the outer envelope, it is dominated by radical reactions, assisted by a photo-chemistry driven by the interstellar radiation field.
Aims. The study at hand aims to describe the distribution of atomic carbon, C0, throughout the envelope, in support of an improved understanding of its photo-chemistry. Additionally, we also briefly discuss the observation of [C II] emission towards the star.
Methods. We obtain spectra of the [C I]3P1 → 3P0 fine structure line (at 492.160700 GHz) at projected distances of up to 78″ from the star. The line profiles are characterised by both direct fitting of Gaussian components, and by modelling the observed line of the [C I] triplet. We also report the detection of the 2P3/2 → 2P1/2 line (at 1900.5369 GHz) from the C+ fine structure singlet at the central position and its non-detection at 32″ from the star.
Results. The overall picture of the [C I] emission from IRC +10216 agrees with more limited previous studies. The satisfying agreement between the observed and modelled line profiles, with emission at the systemic velocity appearing beyond one beam (13″ HPBW) from the star, rules out that the C0 is located in a thin shell. Given that the bond energy of CO falls only 0.1 eV below the ionisation threshold of C0, the absence of observable [C II] emission from sightlines beyond a projected distance of ~1017 cm (≳20″–30″) from the star (adopting a distance of 130 pc) does not contradict a scenario where the majority of C0 is located between that of CO and C+, as expected for an external far-ultraviolet radiation field. This conjecture is also corroborated by a model in which the C0 shell is located farther outside, failing to reproduce the [C I] line profiles at intermediate sky-plane distances from the star. Comparing a photochemical model adopted from literature with the simplifying assumption of a constant C0 abundance with respect to the H2 density (with the 1/r2 fall-off of a mass-conserving expansion flow), we constrain the inner boundary of the [C I] emitting shell, located at ~1016 cm from the star.
Accelerated particle beams in a 3D simulation of the quiet Sun
Authors: Bakke H. , Frogner L. , Rouppe van der Voort L. , Gudiksen B. V. , Carlsson M. 
Published: June 2023

Context. Nanoflare heating through small-scale magnetic reconnection events is one of the prime candidates to explain heating of the solar corona. However, direct signatures of nanoflares are difficult to determine, and unambiguous observational evidence is still lacking. Numerical models that include accelerated electrons and can reproduce flaring conditions are essential in understanding how low-energetic events act as a heating mechanism of the corona, and how such events are able to produce signatures in the spectral lines that can be detected through observations.
Aims. We investigate the effects of accelerated electrons in synthetic spectra from a 3D radiative magnetohydrodynamics simulation to better understand small-scale heating events and their impact on the solar atmosphere.
Methods. We synthesised the chromospheric Ca II and Mg II lines and the transition region Si IV resonance lines from a quiet Sun numerical simulation that includes accelerated electrons. We calculated the contribution function to the intensity to better understand how the lines are formed, and what factors are contributing to the detailed shape of the spectral profiles.
Results. The synthetic spectra are highly affected by variations in temperature and vertical velocity. Beam heating exceeds conductive heating at the heights where the spectral lines form, indicating that the electrons should contribute to the heating of the lower atmosphere and hence affect the line profiles. However, we find that it is difficult to determine specific signatures from the non-thermal electrons due to the complexity of the atmospheric response to the heating in combination with the relatively low energy output (∼1021 erg s−1). Even so, our results contribute to understanding small-scale heating events in the solar atmosphere, and give further guidance to future observations.
Interdisciplinarité et recherche participative : deux régimes de recherche pour la transition écologique et solidaire. Une mise en perspective programmatique
Authors: Barré Rémi , Jollivet Marcel 
Published: June 2023

Les auteurs partent du constat qu’en réponse aux spécificités de la recherche sur les problèmes ayant trait à l’environnement, au développement durable et à la transition écologique et sociale – nécessité de les aborder en tenant compte de leur complexité et de leur finalité en termes d’action –, deux innovations successives sont apparues : l’interdisciplinarité et la recherche participative. Ils s’appuient sur la notion de « régime de recherche » pour s’interroger sur ce qu’il est advenu de la première, qui a connu son apogée dans les années 1980 et en tirer des enseignements pour la seconde, qui ne cesse de monter en puissance depuis les années 2000. Ils considèrent que l’interdisciplinarité n’a pas réussi à acquérir le statut de régime de recherche patenté, faute d’une réflexion sur ses fondements pratiques et épistémiques. Ils en concluent qu’en dépit de la faveur croissante dont elle jouit, la recherche participative court le même risque si elle n’est pas l’objet de cette même réflexion. Ils esquissent les pistes de la politique de la recherche indispensable pour éviter cet écueil. Un écueil qui priverait la recherche d’une démarche tout particulièrement susceptible de répondre aux inquiétudes et exigences de la transition écologique et sociale.
Combined Pre- and Postnatal Minimally Invasive Approach to a Complex Symptomatic Congenital Pulmonary Airway Malformation
Authors: Macchini Francesco , Mazzoleni Stefano , Cavallaro Giacomo , Persico Nicola , Borzani Irene , Leva Ernesto 
Published: June 2023

AbstractCongenital pulmonary airway malformation (CPAM) is a rare congenital lung lesion that usually remains asymptomatic during the fetal and neonatal period. However, it can occasionally cause prenatal cardiocirculatory failure and fetal hydrops, requiring a thoraco-amniotic shunt (TAS) placement. In other cases, it can also cause symptoms at birth (such as respiratory distress) and may require urgent surgical intervention. Thoracoscopic lobectomy for neonates is rarely reported. Here, we report a case of right macrocystic CPAM causing fetal hydrops at 27 weeks of gestation. The fetus was treated with a TAS placement that successfully resolved the hydrops. At 39 weeks of gestation, a male neonate was born (weight 2,850 g). The TAS spontaneously displaced during delivery, causing an open pneumothorax (PNX), initially treated with a drainage. His condition gradually worsened, requiring ventilatory support. Computed tomography (CT) scan showed different giant cysts in the context of the right lower lobe, left mediastinal shift, and compression of the rest of the lung. An urgent surgical management was required. A thoracoscopic right lower lobectomy was performed at 10 days of life (weight 2,840 g). The postoperative course was uneventful; the child remained totally asymptomatic and showed a good recovery. To the best of our knowledge, this is the first reported case of open iatrogenic PNX following TAS positioning and the second of neonatal thoracoscopic lobectomy in a newborn weighting less than 3 kg. The purpose of this report is to indicate that minimally invasive surgery is feasible, safe, and effective for the resection of CPAM, even in small newborns.
Maternal Participation in Sensory Care of Preemies: A Pilot Study Examining the Effect on Neonatal Outcome in NICU
Authors: Lobo Renilda Shanthi , Mendonca Theresa Leonilda 
Published: June 2023

Abstract
Background Hospitalization with specialized medical care and equipment in neonatal intensive care unit (NICU) can help preterm infants survive and thrive; negatively it can lead to separation from the mother with an impact on their growth and behavior. It is critical to assess the interventions that are more beneficial for their development at this particular period. The study's objective was to examine the effectiveness of maternal-directed multisensory stimulation in premature neonates admitted to NICU on neonatal outcomes.
Methods A pilot, quasi-experimental research was designed where 31mother-preterm newborn dyads were enrolled in the intervention and control group, respectively, using a purposive sampling technique. The study included medically stable preterm neonates admitted to NICU between 30 and 36 weeks of gestation weighing 1 to 2.5kg. The preterm in the study group was given ATVV (Auditory, Tactile, Vestibular, and Visual) stimulation for 10 days by the mother, whereas the preterm in the comparison group received the standard treatment. The neonatal outcomes evaluated were weight, physiological parameters, and behavioral assessment of preterm neonates.
Results Preterm newborns who received the intervention scored significantly better than the comparison group on the parameters of heart and respiratory rate, blood oxygen levels, weight, and preterm assessment behavior between the 7th and 10th day of the intervention that suggests the effectiveness of the intervention in improving these parameters of preterm newborns.
Conclusion Maternal guidance and participation in the care of a preterm newborn have a beneficial neonatal outcome in stabilizing the physiological parameters, and improving the weight and preterm infant behavioral characteristics.
Novel approach to TNSA enhancement using multi-layered targets—a numerical study
Authors: Hadjikyriacou A , Psikal J , Giuffrida L , Kucharik M 
Published: June 2023

Abstract
In the context of ion acceleration driven by ultra-high contrast lasers using thin foils, there is a clear trend towards increasing ion energy when the target thickness is reduced. However when the target is too thin and the prepulse strength is not negligible, this trend is reversed due to degradation of the target mainly caused by prepulse-induced shocks, among other effects (thermal plasma expansion, early onset of transparency, etc). In this paper, we propose and motivate the use of multi-layered targets for the purpose of enhancing the target normal sheath acceleration mechanism by means of attenuating the shock waves inside the target. It is demonstrated through hydrodynamic simulations that multi-layered targets, composed of alternating layers of plastic and gold, can significantly delay the time of shock wave breakout, reducing the shock energy that breaks out of the target and shortening the plasma scale-length. This approach paves the way for enhanced laser-driven ion acceleration using thinner targets even for relatively low contrast lasers.
Structural optimization of inverted CsPbI2Br perovskite solar cells for enhanced performance via SCAPS-1D simulation
Authors: Das Tapas , Rana Naba Kumar , Guchhait Asim 
Published: June 2023

Abstract
The CsPbI2Br material benefits perovskite solar cells (PSCs) by balancing their efficiency with chemical and thermal stability. Herein, we performed numerical modeling of a p-i-n structured PSCs employing different electron transport layers (ETLs). In order to optimize the ETL, the simulation results showed bilayer ETL (PCBM/SnO2) yielded the best device performance. Then, by tweaking the absorber layer’s defect density, thickness, electron affinity, and band gap, we optimized the device performance utilizing this bilayer ETL and yielded power conversion efficiency (PCE) of 12.51%, fill factor (FF) of 73.60%, open circuit voltage (V

OC
) of 0.94 V, and short circuit current density (J

SC
) of 17.94 mA cm−2. These CsPbI2Br perovskite-based devices would have outstanding thermal stability in a range from 253 K to 323 K. Another important observation in these PSCs is that interfacial defect density plays a crucial for regulating the V

OC. We, therefore, anticipate that this research will aid in the development of extremely effective and stable inverted all inorganic PSCs.
The dilute interacting Bose gas: comparisons between Feynman diagrammatic expansion and the hierarchy equations for the imaginary time Green functions
Authors: Dansage Victor , Ballenegger Vincent , Alastuey Angel 
Published: June 2023

Abstract
We analyze the correspondence between two formalisms describing an interacting Bose gas, namely the standard Feynman diagrammatic expansion on the one hand, and the hierarchy equations for the imaginary-time Green functions on the other hand. We show that the Hartree–Fock approximation, as well as its first corrections at low density derived by Baym et al (2001 Eur. Phys. J. B 24 107–24), can be equivalently formulated in both formalisms. Within the hierarchy approach, the two-body correlations

are expressed at lowest order in the interactions in terms of the full one-body Green function. This sheds light on the physical content of the corrections to the Hartree–Fock theory. Moreover, this representation of

can be extended to higher orders, opening the way to systematic calculations of further corrections to the ideal critical temperature when the density increases.
Low-power time synchronization algorithm for wireless sensor networks
Authors: Zhou Tiancheng , Liu Tong , Zhang Jie 
Published: June 2023

Abstract
Time synchronization technology is very significant for wireless sensor networks. A typical time synchronization algorithm is applied to the multi-hop topology network, which has the problems of poor time synchronization accuracy, slow convergence speed, and high power consumption. In this paper, a low-power time synchronization algorithm (LPTSA) is proposed. It is based on clustering in a multi-hop environment and adopts a node hierarchy strategy to reduce the synchronous communication overhead. The synchronization error compensation mechanism is adopted to reduce the impact of algorithm synchronization errors. The clustering algorithm divides the whole network into a primary network and a secondary network. By using different time synchronization algorithms in the primary and secondary networks respectively, unnecessary message overhead is reduced. Simulation shows that the algorithm effectively reduces energy consumption and improves synchronization accuracy.
Research on the Safety Alarm Distribution and Control System of Electric Construction Machinery Based on Edge Computing Technology
Authors: Zhang Qi , Hou Yongliang , Jiang Li , Zhu Jitao , Ma Hongbo , Yang Bo 
Published: June 2023

Abstract
Aiming at the alarm system of electrical construction machinery, which is mostly developed based on the principle of near electric alarm in the current market, a more excellent safety system is developed: research on the safety alarm distribution and control system of electric construction machinery based on edge computing technology. The X-band-based linear frequency modulation continuous wave (LFMCW) ranging radar is selected as the basic detection method. The system consists of the front-end monitoring device, signal processing and display, and acoustic and optical alarm equipment. To carry more new functions in the future, the front-end monitoring device adopts edge computing technology to overcome the shortcomings of centralized cloud computing. In the application test, the system has high detection accuracy and high practical use value, which can improve the safety of field operations, reduce the burden of safety supervision, and has good promotion value.
Simulation of the N-MFSK Method Used for Laser-Induced Acoustic Communication
Authors: Zhao Yang , Huang Jinxin , Cao Yifei , Chen Yingnan , Zhou Zhiquan 
Published: June 2023

Abstract
Laser-induced acoustic (LIA) technology is a possible way of communicating from an air platform to an underwater target. The present paper describes a modulation method of n-multiple frequency shift keying (n-MFSK) used for improving the communication rate of LIA technology. The thermal expansion mechanism was selected as a way of generating an acoustic signal by the pulse laser in this work. Thus, the technology of pulsed repetition frequency (PRF) can be used to realize n-MFSK modulation by controlling laser frequency and allocating periods in the time domain. The results of numerical simulation show that n-MFSK modulation can improve the communication rate and band utilization compared with the traditional n-frequency shift keying (n-FSK) modulation.
SP-E: Security Evaluation Framework of In-vehicle Infotainment System based on Threat Analyses and Penetration Tests
Authors: Li Shuang , Zhang Xin , Zhou Yue , Zhang Meng 
Published: June 2023

Abstract
With the increasing requirement of people, the functions of in-vehicle infotainment systems are becoming more and more abundant, and their security also affects the safety of vehicles. Therefore, it is more and more important to evaluate the security of the IVI system. This paper proposes a security evaluation framework for in-vehicle infotainment systems based on threat analyses and penetration tests. By constructing the data flow diagram of application scenarios, analyzing threats, combing the attack link diagram, combining white-box audit and black-box test, we use the characteristics of high efficiency of automatic tools and high accuracy of manual methods to set factor sets, and then the whole IVI system is evaluated by Analytic Hierarchy Process and Fuzzy Comprehensive Evaluation.
Research on Radar Jamming for Detection Performance
Authors: Hu Yu , Wang Ziyu , Chen Hang , Jiang Yuchuan 
Published: June 2023

Abstract
Radar jamming plays an important role in modern military affairs. The current radar jamming technology is mainly divided into two parts: suppressive jamming and deceptive jamming. This paper applies the jamming effect of multi-false target jamming in deceptive jamming and noise AM jamming, noise FM jamming, and noise PM jamming in suppressive jamming to the radar’s echo signal. Besides, this paper studies their influences from the aspect of target detection results through MTI and the influence of these jamming methods on the radar detection probability through CFAR. The experimental results can directly show the influence of interference measures on detection results and detection probability, and prove the effectiveness of these interference methods.
Production and testing of the large-area photon detector ArCLight
Authors: Kunzmann J. 
Published: June 2023

Abstract
Compact large-area dielectric photon detectors that ensure modular noble liquid detectors can sense scintillation light signals for triggering and reconstruction purposes with minimal impact to the overall target volume. ArCLight is a small-volume, sizeable sensitive-area detector that consists of a light trap covered in a thin layer of TPB that can be placed inside a time projection chamber's electric field. These sensors are used in the Deep Underground Neutrino Experiment Near Detector liquid argon (DUNE ND-LAr). They are constructed and tested at the University of Bern and will be deployed in the prototype experiment ProtoDUNE-ND. The talk discusses the details of assembling ArCLights, the quality control methods, and the test studies done with LEDs to assess their performance.
Evaluating Generative Adversarial Networks for particle hit generation in a cylindrical drift chamber using Fréchet Inception Distance
Authors: Andreou I. , Mouelle N. 
Published: June 2023

Abstract
We use Fréchet Inception Distance (FID) measured in the
latent spaces of pre-trained, fine-tuned and custom-made inception
networks to evaluate Generative Adversarial Networks (GANs)
developed by the COherent Muon to Electron Transition (COMET)
collaboration to generate sequences of background hits in a
Cylindrical Drift Chamber (CDC). We validate the convergence of the
GANs' training and show that the use of self-attention layers
reduces FID. Our method enables the use of FID as an evaluation
metric even when an application-specific inception network is not
readily available, making it transferable to other GAN applications
in High Energy Physics.
Facile synthesis of zinc acetate/niacin MOFs for use in wound healing
Authors: Ashmawy Salma R , Azzazy Hassan M E 
Published: June 2023

Abstract
Niacin (NA) and zinc (Zn) were used to fabricate metal organic frameworks (Zn-NA MOFs), based on coordination chemistry via a simple, rapid technique conducted at room temperature. The identity of the prepared MOFs was confirmed by Fourier-transform infrared, x-ray diffraction, scanning electron microscopy, and transmission electron microscopy, which showed cubic shaped, crystalline, microporous MOFs with an average size of 150 nm. Release of the active ingredients from the MOFs was proved to be pH dependent in a slightly alkaline medium (pH 8.5) with a sustained release rate of its two ingredients, NA and Zn, which have wound healing activity. Zn-NA MOFs proved to be biocompatible in the tested concentrations range (5–100 mg ml−1), with no cytotoxic effect on WI-38 cell line. Zn-NA MOFs at 10 and 50 mg ml−1 concentrations and their components, NA and Zn, exerted antibacterial effects against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. Wound healing effect of the Zn-NA MOFs (50 mg ml−1) was evaluated on full excisional rat wounds. Significant reduction of the wound area was observed after 9 d of treatment using the Zn-NA MOFs compared to the other treatment groups. Additionally, wounds were fully healed after 10 d of treatment with the Zn-NA MOFs with histological and immunohistochemical evidence of re-epithelization, collagen formation, and angiogenesis. Similar histological evidence was also observed in wounds treated with niacin only; however, with no significant wound closure rates. Nevertheless, the formation of new blood vessels, as confirmed by the vascular endothelial growth factor protein expression, was highest in the niacin group. Zn-NA MOFs synthesized using a facile, low-cost method are potentially capable of healing wounds rapidly and effectively.