bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhanced Communication for Interhospital Transfers Increases Preparedness in an Academic Tertiary Care Center
Authors: Leven Emily A. , Luo Yuying , Nguyen Vinh-Tung , Pourmand Kamron 
Published: August 2022

Abstract
Objectives This quality improvement project sought to enhance clinical information sharing for interhospital transfers to an inpatient hepatology service comprised of internal medicine resident frontline providers (housestaff) with the specific aims of making housestaff aware of 100% of incoming transfers and providing timely access to clinical summaries.
Interventions In February 2020, an email notification system to senior medicine residents responsible for patient triage shared planned arrival time for patients pending transfer. In July 2020, a clinical data repository (“Transfer Log”) updated daily by accepting providers (attending physicians and subspecialty fellows) became available to senior medicine residents responsible for triage.
Methods Likert scale surveys were administered to housestaff before email intervention (pre) and after transfer log intervention (post). The time from patient arrival to team assignment (TTA) in the electronic medical record was used as a proxy for time to patient assessment and was measured pre- and postinterventions; >2 hours to TTA was considered an extreme delay.
Results Housestaff reported frequency of access to clinical information as follows: preinterventions 4/31 (13%) sometimes/very often and 27/31 (87%) never/rarely; postinterventions 11/26 (42%) sometimes/very often and 15/26 (58%) never/rarely (p = 0.02). Preinterventions 12/39 (31%) felt “not at all prepared” versus 27/39 (69%) “somewhat” or “adequately”; postinterventions 2/24 (8%) felt “not at all prepared” versus 22/24 (92%) somewhat/adequately prepared (p = 0.06). There was a significant difference in mean TTA between pre- and posttransfer log groups (62 vs. 40 minutes, p = 0.01) and a significant reduction in patients with extreme delays in TTA post-email (18/180 pre-email vs. 7/174 post-email, p = 0.04).
Conclusion Early notification and increased access to clinical information were associated with better sense of preparedness for admitting housestaff, reduction in TTA, and reduced frequency of extreme delays in team assignment.
Entangling two cavity modes and squeezing magnon mode via parametric down-conversion
Authors: Zhou Ying , Xu Jingping , Xie Shuangyuan 
Published: August 2022

Abstract
A scheme to entangle two cavity modes and squeeze magnon mode in a magnon–cavity QED system is presented, where the two microwave cavity modes are coupled to a massive yttrium iron garnet sphere. The nonlinearity used in our system originates from parametric down-conversion. By using the mean field approximation and employing experimentally feasible parameters, we indicate that the entanglement between squeezed cavity mode and magnon mode can be transferred to the other cavity mode and magnon mode, and then the two cavity modes get entangled. Meanwhile, the magnon mode is squeezed in our QED system. Furthermore, we show that it is a good way to enhance entanglement and squeezing by increasing the nonlinear gain. Our results denote that magnon–cavity QED system is a powerful platform for studying macroscopic quantum phenomena, which illustrates a new approach to photon–photon entanglement and magnon squeezing.
Ground experiment verification and on-orbit prediction of the two-stage cooling at pK level in the Chinese space station
Authors: Xie Yu , Fan Bo , Li Hui , Liang Angang , Huang Mingshan , Wu Biao , Wang Bin , Chen Xuzong , Liu Liang 
Published: August 2022

Abstract
In order to infer the expected temperature of the two-stage cooling experiment onboard the Chinese space station (CSS) through ground experiments, we apply the direct simulation Monte Carlo algorithm to construct a simulation model suitable for both the standard gravity and the microgravity conditions. The simulations are verified by the ground experimental results, from which we can deduce that the on-orbit experiments can reach the order of as low as 100 pK. This algorithm calculates the corresponding relationship between the temperature in the ground experiments and that in the microgravity conditions, keeping the other experimental parameters unchanged, which provides an important basis of design for the on-orbit atomic cooling experiment onboard the CSS which is due to be launched at the end of 2022.
Surface-standing-wave formation via resonance interaction of a finite-length conductive rod with microwaves
Authors: Abrahamyan Tigran , Haroyan Hovhannes , Hambaryan David , Parsamyan Henrik , Babajanyan Arsen , Lee Kiejin , Friedman Barry , Nerkararyan Khachatur 
Published: August 2022

Abstract
The resonant response of a thin conducting rod with a finite length irradiated by microwaves polarized along its axis is observed. By using a thermoelastic optical indicator microscope it is shown that rod with a length of several half- wavelengths can serve as a resonator for axial surface waves. It is facilitated by noticeable reflections (approximately 30%) from the rod edges conditioned by the unique distributions of Sommerfeld wave fields along a rod. The presence of a weak axial electric field component of surface waves ensures an easy coupling with the incident plane wave polarized along the rod axis and excites the resonator. Visualization of distributions of the near-field magnetic component of surface standing waves in the vicinity of a rod allows the exploration of three longitudinal modes of a resonator with low orders. The possibility of controlling the resonant frequency by changing the length and diameter of the rod, as well as the electromagnetic characteristics of the environment, are studied. The phenomenon under study can be used to create wavefront shaping metasurfaces and for studies of the properties of a dielectric medium in the microwave region. As Sommerfeld waves propagate on the surface of a cylindrical resonator, the resonant properties are sensitive to the dielectric permittivity of the surrounding medium, which will open up the potential for using the suggested resonator in sensing applications, which is experimentally demonstrated.
Rapid thermal vapor condensation towards crystalline carbon nitride film with improved photoelectrochemical activity
Authors: Oo May Thawda , Tian Haoran , Zhao Yanling , Zhang Rui-Qin 
Published: August 2022

AbstractGraphitic carbon nitride (g-CN), as an orderly structured polymer derivative, has been widely concerned for its photocatalytic ability due to its metal-free nature and unique properties. However, the photoelectrochemical (PEC) application of g-CN is still hindered by the difficulty of forming high-quality films with good uniformity and crystallinity. Herein, we studied the rapid thermal vapor condensation (RTVC) for growing g-CN films with improved PEC activity. The polycondensation and polymerization reactions of precursor melamine molecules under the optimized temperature 600 °C and calcination time 20 min resulted in better crystallinity of g-CN films. Remarkably, the growth of g-CN film based on the coalescence of unambiguous hexagonal nanosheets was observed, as corroborated by scanning electron microscopy and transmission electron microscopy. This novel RTVC method offers a fast and easy strategy for improving the crystallinity of g-CN films through controlling the thermal dynamics and kinetics of film growth from temperature and time.
High detectivity graphene/si heterostructure photodetector with a single hydrogenated graphene atomic interlayer for passivation and carrier tunneling
Authors: Cong Jingkun , Khan Afzal , Hang Pengjie , Cheng Li , Yang Deren , Yu Xuegong 
Published: August 2022

Abstract
Hydrogenated graphene is easy to prepare and chemically stable. Besides, hydrogenation of graphene can open the band gap, which is vital for electronic and optoelectronic applications. Graphene/Si photodetector (PD) has been widely studied in imaging, telecommunications, and other fields. The direct contact between graphene and Si can form a Schottky junction. However, it suffers from poor interface state, where the carrier recombination at the interface causes serious leakage current, which in turn leads to a decrease in the detectivity. Hence, in this study, hydrogenated graphene is used as an interfacial layer, which passivates the interface of graphene/Si (Gr/Si) heterostructure. Besides, the single atomic layer thickness of hydrogenated graphene is also crucial for the tunneling transport of charge carriers and its suitable energy band position reduces the recombination of carrier. The fabricated graphene/hydrogenated-graphene/Si (Gr/H–Gr/Si) heterostructure PD showed an extremely low dark current about 10−7 A. As a result, it had low noise current and exhibited a high specific detectivity of ∼2.3 × 1011 Jones at 0 V bias with 532 nm laser illumination. Moreover, the responsivity of the fabricated PD was found to be 0.245 A W−1 at 532 nm illumination with 10 μW power. These promising results show a great potential of hydrogenated graphene to be used as an interface passivation and carrier tunneling layer for the fabrication of high-performance Gr/Si heterostructure PDs.
Mechanisms of self-organization of a microwave streamer leading to maximum energy absorption
Authors: Brovkin V G , Vedenin P V 
Published: August 2022

Abstract
An attempt is made to reveal the general principle of the formation of a thin microwave plasma channel (filament) in free space. The channel is the main element of dipole-type plasma structures developing at high pressure in a beam (or beams) of electromagnetic waves away from surfaces. The mechanisms of self-organization of the thin plasma filament at various stages of its evolution are revealed. The triggering of these mechanisms leads to the fact that the total absorbed energy (Joule’s losses) at each moment of time is close to its upper estimate. The reaction of the electric field-plasma channel system to the change in the rate constants of the main processes of production and loss of electrons in air at the most energy-intensive stage has been studied. The maximum energy absorption is provided by rate constants that are in good agreement with currently used constants.
Synchronous chip-to-chip communication with a multi-chip resonator clock distribution network
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Authors: Egan Jonathan , Nielsen Max , Strong Joshua , Talanov Vladimir , Rudman Ed , Song Brainton , Herr Quentin , Herr Anna 
Published: August 2022

Abstract
Superconducting digital circuits are a promising approach to build integrated systems with high energy-efficiency and computational density of the packaged chips. In such systems, performance of the data link between chips mounted on a multi-chip-module (MCM) is a critical driver of performance. In this work we report a synchronous data link using reciprocal quantum logic enabled by resonant clock distribution on-chip and on the MCM carrier. The simple physical link has only four Josephson junctions and 3 fJ/bit dissipation, including a 300 W/W cooling overhead. The driver produces a signal with 35 GHz analog bandwidth and connects to a single-ended receiver via 20 Ω Nb passive transmission line. To validate this link, we have designed, fabricated, and tested two 32 × 32 mm2 MCMs with eight 5 × 5 mm2 chips connected serially and powered by a traveling-wave clock, and with four 10 × 10 mm2 chips powered with a 2 GHz resonant clock. The traveling-wave clock MCM validates performance of the data link components and achieves a 5.4 dB AC bias margin with no degradation relative to individual chip tests. The resonator MCM validates synchronization between chips, with a measured AC bias margin up to 4.8 dB between two chips. The resonator MCM is capable of powering circuits of 4 million Josephson junctions across the four chips with a projected 10 Gbps serial data rate.
Differential geometry method for minimum hard-way bending 3D design of coils with ReBCO tape conductor
Authors: Nes T H , de Rijk G , Kario A , ten Kate H H J 
Published: August 2022

Abstract
The use of tape conductor poses design challenges for superconducting magnets. Due to its very high aspect ratio, it is hardly possible to bend the conductor over its thin edges (hard-way bending) rather than over its wide side (easy-way bending). Overstraining the conductor causes critical current degradation. In this paper, we propose a new design approach to three-dimensional coil layouts and coil end geometries with tape conductor, which considers the tape’s geometrical limitations. To geometrically describe the conductor surface, we use the thin strip model, also referred to as constant perimeter geometry. To prevent conductor degradation, new optimization criteria valid for three-dimensional geometries are presented, which are prevention of conductor creasing, minimization of overall bending energy, and prevention of over-straining the conductor. We will apply this to two 3D coil designs called helix and canted cosine theta. For the design of the coil ends, we propose a new design method using Bézier splines, which allows for much greater design flexibility than previous methods. Two examples of coil end geometries generated with Bézier splines are presented: the so-called cloverleaf and cosine-theta.
Broadband and high-numerical-aperture sharp focusing for waterborne sound with metagrating-based lens
Authors: Mei Jun , Fan Lijuan , Hong Xiaobin 
Published: August 2022

Abstract
Metalens with broadband and high-efficiency focusing functionality is desired in various underwater acoustic applications such as sonar and oceanography. Here we design and demonstrate a metagrating-based lens consisting of spatially sparse and wavelength-scale meta-atoms with optimized structures. With the help of grating diffraction analysis and intelligent optimization algorithm, the reflective metalens enables broadband and high-numerical-aperture focusing for waterborne sound over a 40 kHz-bandwidth for working frequency at 200 kHz. Full-wave numerical simulations unambiguously verify a sharp and high-efficiency focusing of sound wave intensity, with the full width at half maximum at the focal spot being smaller than 0.5λ and thus beating the Rayleigh–Abbe diffraction limit. Our work not only provides an intelligent design paradigm of high-performance metalens, but also presents a potential solution for the development of planar acoustic devices for high-resolution applications.
Dark Matter and (g - 2)μ,ein radiative Dirac neutrino mass models
Authors: Chowdhury Talal Ahmed , Ehsanuzzaman Md. , Saad Shaikh 
Published: August 2022

AbstractThe origin of neutrino mass is a mystery, so is its nature, namely, whether neutrinos are Dirac or Majorana particles. On top of that, hints of large deviations of the muon and the electron anomalous magnetic moments (AMMs) are strong evidence for physics beyond the Standard Model. In this work, piecing these puzzles together, we propose a class of radiative Dirac neutrino mass models to reconcile (g- 2)μ,eanomalies with neutrino oscillation data. In this framework, a common set of new physics (NP) states run through the loops that generate non-zero neutrino mass and, due to chiral enhancement, provide substantial NP contributions to lepton AMMs. In addition, one of the three models studied in this work offers a Dark Matter candidate automatically stabilized by the residual symmetry, whose phenomenology is non-trivially connected to the other two puzzles mentioned above. Finally, our detailed numerical analysis reveals a successful resolution to these mysteries while being consistent with all colliders and cosmological constraints.
Black hole solutions in scalar-tensor symmetric teleparallel gravity
Authors: Bahamonde Sebastian , Gigante Valcarcel Jorge , Järv Laur , Lember Joosep 
Published: August 2022

AbstractSymmetric teleparallel gravity is constructed with a nonzero nonmetricity tensor while both torsion and curvature are vanishing. In this framework, we find exact scalarised spherically symmetric static solutions in scalar-tensor theories built with a nonminimal coupling between the nonmetricity scalar and a scalar field. It turns out that the Bocharova-Bronnikov-Melnikov-Bekenstein solution has a symmetric teleparallel analogue (in addition to the recently found metric teleparallel analogue), while some other of these solutions describe scalarised black hole configurations that are not known in the Riemannian or metric teleparallel scalar-tensor case. To aid the analysis we also derive no-hair theorems for the theory. Since the symmetric teleparallel scalar-tensor models also includef(Q)gravity, we shortly discuss this case and further prove a theorem which says that by imposing that the metric functions are the reciprocal of each other (grr= 1/gtt), thef(Q)gravity theory reduces to the symmetric teleparallel equivalent of general relativity (plus a cosmological constant), and the metric takes the (Anti)de-Sitter-Schwarzschild form.
Classical cosmological collider physics and primordial features
Authors: Chen Xingang , Ebadi Reza , Kumar Soubhik 
Published: August 2022

AbstractFeatures in the inflationary landscape can inject extra energies to inflation models and produce on-shell particles with masses much larger than the Hubble scale of inflation. This possibility extends the energy reach of the program of cosmological collider physics, in which signals associated with these particles are generically Boltzmann-suppressed. We study the mechanisms of this classical cosmological collider in two categories of primordial features. In the first category, the primordial feature is classical oscillation, which includes the case of coherent oscillation of a massive field and the case of oscillatory features in the inflationary potential. The second category includes any sharp feature in the inflation model. All these classical features can excite unsuppressed quantum modes of other heavy fields which leave observational signatures in primordial non-Gaussianities, including the information about the particle spectra of these heavy degrees of freedom.
Goos–Hänchen shift of a light beam tunable by graphene in the resonant optical tunneling structure
Authors: Bocharov A A 
Published: August 2022

Abstract
The structure for implementing resonant optical tunneling effect is a simple layered system of dielectrics that provides full light transmission for resonance condition, despite the presence of barrier layers partially locking light. The presence of a sharp resonant peak both for the intensity and for the spatial shift of the transmitted light beam makes such a structure promising for the creation of sensors and light control devices. This paper focuses on the spatial shift called the Goos–Hänchen shift of such a structure with interfaces of the waveguide layer coated by graphene. The effect of Goos–Hänchen shift near the resonance in this case may be controlled by small changes in the chemical potential or the Fermi energy of graphene, which can be controlled both chemically and by electrical bias. The characteristics of transmitted light beam strongly depend on the beam width for the selected optimal focusing condition.
The high-temperature oxidation and mechanical properties of the Cr/Zr and CrN/Zr coating
Authors: Zhou Teng , Gao Xiong , Chen Huan , Zhang Rui-Qian , Shang Lunlin , Zhang Guangan , Cai Zhen-Bing 
Published: August 2022

Abstract
Coating technology to modify the property of zirconium (Zr) alloy is a potential method for accident-tolerant fuel claddings. In this work, Cr-coated and CrN-coated are prepared on the surface of Zr alloy by using multi-arc ion plating technology. The effect of coatings on the high-temperature oxidation performance at 800, 1000, and 1200 °C has been investigated. The oxidation behavior, microstructure, and phase composition of the samples were characterized by scanning electron microscopy, atomic force microscope and x-ray diffraction analysis. The mechanical properties of the coatings before and after oxidation were examined by ring compressive and hardness tests. It is shown that all the Cr and CrN coating can effectively protect the substrate from oxidation corrosion in air due to the formation of Cr2O3, which can effectively reduce the penetration of oxygen. The thickness of the oxide layer from the side of the coating doesn’t exceed to 5 μm at 1000 °C, and from the uncoated side reaches to 70 μm with pores and rough structure. Bubbles appeared on the surface of the coated samples after oxidizing at 1200°C. These bubbles are located at the Cr and Cr2O3 layers. The high-temperature oxidation resistance of Cr coating at 1200 °C is better than that of CrN, the latter appears to crack and spall on the oxide layer. Due to the higher fracture toughness, ductility of the Cr coating and more suitable deformation compatibility, the Cr coating possesses better crack resistance than the CrN coating under mechanical loading.
Low temperature CVD growth of WSe2 enabled by moisture-assisted defects in the precursor powder
Authors: Sassi Lucas M , Krishnamoorthy Aravind , Hachtel Jordan A , Susarla Sandhya , Apte Amey , Castro-Pardo Samuel , Ajnsztajn Alec , Vajtai Robert , Vashishta Priya , Tiwary Chandra Sekhar , Puthirath Anand B , Ajayan Pulickel M 
Published: August 2022

Abstract
Two-dimensional transition metal dichalcogenides (TMDs) have been proposed for a wide variety of applications, such as neuromorphic computing, flexible field effect transistors, photonics, and solar cells, among others. However, for most of these applications to be feasible, it is necessary to integrate these materials with the current existing silicon technology. Although chemical vapor deposition is a promising method for the growth of high-quality and large-area TMD crystals, the high temperatures necessary for the growth make this technique incompatible with the processes used in the semiconductor industry. Herein, we demonstrate the possibility of low-temperature growth of TMDs, using tungsten selenide (WSe2) as a model, by simply using moisture-assisted defective tungsten oxide (WO3) precursor powders during the growth of these materials. Density functional theory calculations reveal the mechanism by which moisture promotes the defect formation on the precursor crystal structure and how it dictates the reduction of the temperature of the growth. The results were compared with the standard growth at high temperatures and with a precursor mixture with alkali salts to show the high quality of the WSe2 grown at temperatures as low as 550 °C. To conclude, the work improves the understanding of nucleation and growth mechanisms of WSe2 at low temperatures and provides a useful strategy for the growth of TMDs at temperatures required for the back-end-of-line compatibility with current silicon technology.