bluuebunny/crossref_metadata_2025_split huggingface dataset:
The circum-Antarctic ice-shelves respond to a more positive Southern Annular Mode with regionally varied melting
Authors: Verfaillie Deborah , Pelletier Charles , Goosse Hugues , Jourdain Nicolas C. , Bull Christopher Y. S. , Dalaiden Quentin , Favier Vincent , Fichefet Thierry , Wille Jonathan D. 
Published: June 2022

AbstractThe Southern Hemisphere cryosphere has recently shown regionally-contrasted responses to climate change, in particular to the positive phases of the Southern Annular Mode. However, the understanding of the impacts of this mode on ice-shelf basal melt at a circum-Antarctic scale is still limited. Here, we performed idealized experiments with a pan-Antarctic regional ice-shelf cavity-resolving ocean—sea-ice model for different phases of the Southern Annular Mode. We show that positive phases lead to increased upwelling and subsurface ocean temperature and salinity close to ice shelves, while the opposite occurs for negative phases. A one-standard-deviation increase of the Southern Annular Mode leads to a net basal mass loss of 40 Gt yr−1, with strong regional contrasts: increased ice-shelf basal melt in the Bellingshausen and Western Pacific sectors and the opposite response in the Amundsen sector. Estimates of 1000–1200 and 2090–2100 ice-shelf basal melt changes due to the Southern Annular Mode are −86.6 Gt yr−1and 55.0 to 164.9 Gt yr−1, respectively, compared to the present.
Electromagnetic wave propagation through composite building materials in urban environments at mid‐band 5G frequencies
Authors: Ng Jake Peng Sean , Sum Yee Loon , Soong Boon Hee , Maier Marcus , Monteiro Paulo J. M. 
Published: June 2022

AbstractIn an urban built city environment, the performance of electromagnetic (EM) wave propagation through building materials poses a new set of challenges to radio frequency engineers in the prediction of the 5G‐network coverage planning. We propose the prospects on the use of composite building materials enhanced with different volumetric fractions of iron (III) oxide (Fe2O3) inclusions as a reddish‐brown colouring admixture in modern‐day concrete. Using a non‐destructive microwave measurement technique, a two‐factor 6 × 10 factorial experiment and a randomized controlled statistical study from 3.40 to 3.60 GHz is conducted on 15‐cm thick building material prototypes enhanced with 2‐wt% to 10‐wt% micro‐sized Fe2O3 inclusions to evaluate their efficacy on EM wave propagation. Transmission coefficients (S21) data are analysed statistically between treatment and control groups, yielding up to 2.28 dB mean S21 improvement in performance and a fractional bandwidth of 100% by the 2‐wt% Fe2O3 treatment group. Electromagnetic characterisations of the fabricated mortar samples with different Fe2O3 inclusions are performed using Nicholson‐Ross‐Weir model followed by the evaluation of dielectric and propagation losses. Our findings support the use of 2‐wt% Fe2O3 as the optimal volumetric fraction which improves the microwave transparency, thus creating potential EM benefits for the fifth‐generation (5G) wireless communication systems.
E‐mobility in Slovakia by 2030—End of oil dependency?
Authors: Zábojník Stanislav , Steinhauser Dušan , Kráľ Pavol 
Published: June 2022

AbstractMore European countries seriously depend on oil supplies from Russia primarily via one pipeline, which makes energy security weaker. This energy balance brings a massive problem for the import intensity; therefore, e‐mobility might be a potential solution for the trade deficits of many European countries. Battery Electric Vehicles and Plug‐In Hybrid Electric vehicles have been introduced within the priorities of the EC but also by car manufacturing companies worldwide. By 2050, massive growth of Electric vehicles (EVs) is expected, and significant changes in favour of electric cars have to be observed in new car sales till 2030. The article's main objective is to investigate whether and to what extent new sales of e‐cars bring lower oil imports to Slovakia. The authors use three scenarios (based on regression models) differentiating market force intensity and regulation stringency till 2030. The significant findings of the models provide an estimated number of EVs on Slovak roads in 2030 and significant oil import cuts stemming from oil import substitution. The conclusion suggests that by 2030, Slovak oil imports will only slightly decrease due to e‐mobility penetration, even in the most optimistic scenario.
Hybrid protection algorithm for power system with renewable energy generation using Stockwell transform and Wigner distribution function
Authors: Mahela Om Prakash , Gupta Mukesh Kumar , Kulshrestha Atul , Khan Baseem , Mahla Rajendra , Garg Akhil Ranjan , Gautam Aditya R. , Padmanaban Sanjeevikumar 
Published: June 2022

AbstractRapid technological development in grid integration of renewable energy (RE) plants has increased the RE penetration level in power utility network. This dramatic change in power scenario challenges the protection and stability of grid. Therefore, this work proposed a protection scheme algorithm (PSA) for the RE integrated hybrid power system. This PSA is implemented in the following steps: (1) calculate Wigner distribution function powered fault index (WFI), (2) calculate Stockwell transform powered combined FI (SCFI), (3) calculate hybrid FI (HFI) using WFI and SCFI, (4) classify the faults using number of faulty phases and fault ground index. Proposed hybrid fault index is used for the identification of faults. It also considers the change in magnitude and waveform distortions of current signals. The proposed PSA effectively identifies and classifies the faulty events such as single phase to ground, two phase, two phase to ground and all phases to ground. PSA is successfully tested for the recognition of faults under various operating scenarios like noisy scenario, different magnitudes of fault impedance, fault location node and fault incidence angle, lines comprising of overhead section and underground cable with availability of transformer. This PSA is effective to discriminate the operational switching events compared to faulty events. It is concluded that performance of the introduced PSA is better and fault detection time is less compared to wavelet energy spectrum entropy based PSA, discrete wavelet transform (DWT) based PSA and Stockwell transform supported PSA.
Pediatric Tacrolimus-Induced Reversible Cerebral Vasoconstriction Syndrome after Heart Transplantation
Authors: Shabo Leah , Ishaque Mariam , Sarathy Danyas , Kumar Jeyan , Xixis Kathryn , Park Min 
Published: June 2022

AbstractReversible cerebral vasoconstriction syndrome (RCVS) is a rare post-organ transplantation complication. While uncommon, complications of post-transplant RCVS can be devastating, with sequelae including ischemic or hemorrhagic stroke and potential significant neurological morbidity. There is a paucity of literature on tacrolimus-mediated RCVS, particularly in the pediatric population. To date, only five case reports have been published, with the youngest patient being 15 years of age. We report the youngest case to date of post-heart transplant tacrolimus-induced RCVS in a 6-year-old male. The present case highlights the necessity of urgent imaging in suspected cases of RCVS, the potential diagnostic challenges surrounding the etiology of headache, the benefits of treating underlying cerebral vasospasm, and the importance of rapid discontinuation of the offending agent for the remission of symptoms and prevention of long-term sequelae.
Vapocoolant Spray for Pain Control in Intramuscular Injection Applications: A Prospective, Randomized Controlled Trial
Authors: Bedel Cihan , Selvi Fatih , Akçimen Mehmet 
Published: June 2022

AbstractBackground Many pharmacological and nonpharmacological methods have been investigated along with advances in pain treatment. One of these nonpharmacological methods is the use of vapocoolant spray.Objective This study aimedto demonstrate the effectiveness of vapocoolant spray to reduce pain during intramuscular (IM) injection.Patients and Methods The study included ≥18 years old patients admitted to the emergency department who were asked to undergo IM injection. Patients were randomly divided into two groups as vapocoolant spray and control group. Demographic data, injection side, and visual analog scale (VAS) of the patients were recorded.Results Mean VAS values during IM injection were significantly lower in patients treated with vapocoolant spray compared with the control group. The severity of pain during IM injection was lower in the vapocoolant spray group as both moderate pain (VAS > 3 cm) and severe pain (VAS > 5.4 cm) compared with the control group.Conclusion Vapocoolant spray to be applied before IM injection is effective in reducing pain caused by the injection.
“It Broke My Heart When They Ripped the Old Logo Off the Wall”: Places, Uses and Meanings of the Rebranded Logo
Authors: Erjansola Ari-Matti , Virtanen Linda , Lipponen Jukka 
Published: June 2022

AbstractMany authors recognize the links between brand logos and identity, but aside from being mere symbols of the organizations that they represent, brand logos are also physical objects with a location and context in which they are interpreted. In this article, we analyze the logo as a physical artifact in relation to its place and physical surroundings in a Finnish university merger. We utilize longitudinal survey data from 140 respondents, and through thematic analysis, we show how employees interpret the logo and its meaning in relation to place and how day-to-day use and management actions affect its interpretation. We argue that logos should be addressed as physical artifacts that can function as identity markers at the organizational level and a mere change of visual elements can, therefore, profoundly alter the sense and identity of a place. This study enhances understanding of brand logos in relation to place and emphasizes their significance during organizational change.
Optimization of normally-off β-Ga2O3 MOSFET with high Ion and BFOM: A TCAD study
Authors: Do Huy-Binh , Phan-Gia Anh-Vu , Nguyen Van Quy , De Souza Maria Merlyne 
Published: June 2022

A combination of recessed-gate and gate-field plate in lateral β-Ga2O3 metal–oxide–semiconductor field-effect transistor (MOSFET) is proposed in the Technology Computer Aided Design study to improve its ON resistance (RON) and breakdown voltage. Enhancement-mode (E-mode) is achieved by controlling the thickness of the recessed-gate. Lateral E-mode β-Ga2O3 MOSFET achieves a saturation current density near 120 mA/mm, ION/IOFF ratio ∼109, RON ∼91 Ω mm, and breakdown voltage of 1543 V. The optimized structure results in a prediction of a power figure-of-merit of 261 MW/cm2 in a horizontal E-mode β-Ga2O3 MOSFET.
Does neuromuscular fatigue generated by trail running modify foot‐ground impact and soft tissue vibrations?
Authors: Trama Robin , Blache Yoann , Hintzy Frédérique , Rossi Jérémy , Millet Guillaume Y. , Hautier Christophe 
Published: June 2022

ABSTRACTThe purpose of the study was to assess the influence of a preceding mountain ultramarathon on the impact between the foot and the ground and the resulting soft tissue vibrations (STV). Two sessions of measurements were performed on 52 trail runners, before and just after mountain trail running races of various distances (from 40 to 171 km). Triaxial accelerometers were used to quantify the foot‐ground impact (FGI) and STV of both gastrocnemius medialis (GAS) and vastus lateralis (VL) muscles during level treadmill running at 10 km·h−1. A continuous wavelet transform was used to analyze the acceleration signals in the time–frequency domain, and the maps of coefficients as well as the frequency and damping properties of STV were computed. Fatigue was assessed from isometric maximal voluntary contraction force loss of knee extensors (KE) and plantar flexors (PF) after each race. Statistical nonParametric Mapping and linear mixed models were used to compare the means between the data obtained before and after the races. FGI amplitude and GAS STV were not modified after the race, while VL STV amplitude, frequency and damping significantly decreased whatever the running distance. A significant force loss was observed for the PF (26 ± 14%) and KE (27 ± 16%), but this was not correlated to the changes observed in STV. These results might reveal a protection mechanism of the muscles, indicating that biomechanical and/or physiological adaptations may occur in mountain ultramarathons to limit STV and muscle damage of knee extensors.Trial registration: ClinicalTrials.gov identifier: NCT04025138.
Topological resonance in graphene-like materials
Authors: Magar Krishna Rana , Oliaei Motlagh S Azar , Apalkov Vadym 
Published: June 2022

Abstract
In topological materials, interacting with short and strong optical pulses, electrons can accumulate a topological phase during the pulse. Such phase can compensate the dynamic phase resulting in topological resonance, which is visible as a large inter-band transfer of electron population. We study theoretically the topological resonance in materials of the gapped multilayer graphene type. We show that the resonance can be observed only in the systems with finite bandgap. For graphene monolayer the topological resonance can occur only in the field of an elliptically polarized pulse, while for graphene systems with many layers the topological resonance can be also realized in a linearly polarized pulse.
An approach to dual-energy contrast-enhanced spectral mammography (DE-CESM) using a double layer filter: dosimetric and image quality assessment
Authors: Niroshani Sachila , Nakamura Tokiko , Michiru Nikaidou , Negishi Toru 
Published: June 2022

Abstract
Dual-energy contrast-enhanced spectral mammography (DE-CESM) is a recently developed advanced technique in digital mammography that uses an iodinated intravenous contrast agent to assess tumor angiogenesis. The aim of this study was to investigate the diagnostic potential of DE-CESM recombined images in terms of radiation dose and image quality. A 50% fibroglandular—50% adipose, custom-made phantom with iodine inserts of 1.0 mgI cm−3, 2.0 mgI cm−3, 4.0 mgI cm−3 was used for the estimation of mean glandular dose (MGD) and the image quality. Low-energy (LE) images were acquired with the W/Rh, W/Rh + 0.01 mm Cu and W/Rh + 0.5 mm Al while high energy images (HE) are acquired with the W/Rh, W/Rh + 0.06 mm Ba, W/Rh + 0.01 mm Cu, and W/Rh + 0.03 mm Ce anode filter combinations. The total MGD was reduced up to a maximum from 1.75 mGy to 1.45 mGy by using Rh + 0.01 mm Cu double-layer filter for both LE and HE imaging of 50 mm, standard 50% fibroglandular phantom compared to Rh single-layer filter with W target. The minimum total MGD reduction (1.69 mGy) was observed when Rh + 0.5 mm Al was used for LE and Rh + 0.06 mm Ba was used for HE exposure. The image quality was comparable with the single-layer filter. The use of W/Rh + 0.01 mm Cu or W/Rh + 0.5 mm Al as target/filter combination for LE exposure and W/Rh + 0.01 mm Cu for HE exposure can reduce the additional radiation dose delivered by DE-CESM without degrading the image quality.
Global existence of weak solutions to viscoelastic phase separation part: I. Regular case
Authors: Brunk Aaron , Lukáčová-Medvid’ová Mária 
Published: June 2022

Abstract
We prove the existence of weak solutions to a viscoelastic phase separation problem in two space dimensions. The mathematical model consists of a Cahn–Hilliard-type equation for two-phase flows and the Peterlin–Navier–Stokes equations for viscoelastic fluids. We focus on the case of a polynomial-like potential and suitably bounded coefficient functions. Using the Lagrange–Galerkin finite element method complex behavior of solution for spinodal decomposition including transient polymeric network structures is demonstrated.
Critical sharp front for doubly nonlinear degenerate diffusion equations with time delay
Authors: Xu Tianyuan , Ji Shanming , Mei Ming , Yin Jingxue 
Published: June 2022

Abstract
This paper is concerned with the critical sharp travelling wave for doubly nonlinear diffusion equation with time delay, where the doubly nonlinear degenerate diffusion is defined by

(

(

u

m

)

x

p
−
2

(

u

m

)

x

)

x

with m > 0 and p > 1. The doubly nonlinear diffusion equation is proved to admit a unique sharp type travelling wave for the degenerate case m(p − 1) > 1, the so-called slow-diffusion case. This sharp travelling wave associated with the minimal wave speed c*(m, p, r) is monotonically increasing, where the minimal wave speed satisfies c*(m, p, r) < c*(m, p, 0) for any time delay r > 0. The sharp front is C
1-smooth for

1

p
−
1

<
m
<

p

p
−
1

, and piecewise smooth for

m
⩾

p

p
−
1

. Our results indicate that time delay slows down the minimal travelling wave speed for the doubly nonlinear degenerate diffusion equations. The approach adopted for proof is the phase transform method combining the variational method. The main technical issue for the proof is to overcome the obstacle caused by the doubly nonlinear degenerate diffusion.
Measurement and image-based estimation of dielectric properties of biological tissues —past, present, and future—
Authors: Sasaki Kensuke , Porter Emily , Rashed Essam A , Farrugia Lourdes , Schmid Gernot 
Published: June 2022

Abstract
The dielectric properties of biological tissues are fundamental pararmeters that are essential for electromagnetic modeling of the human body. The primary database of dielectric properties compiled in 1996 on the basis of dielectric measurements at frequencies from 10 Hz to 20 GHz has attracted considerable attention in the research field of human protection from non-ionizing radiation. This review summarizes findings on the dielectric properties of biological tissues at frequencies up to 1 THz since the database was developed. Although the 1996 database covered general (normal) tissues, this review also covers malignant tissues that are of interest in the research field of medical applications. An intercomparison of dielectric properties based on reported data is presented for several tissue types. Dielectric properties derived from image-based estimation techniques developed as a result of recent advances in dielectric measurement are also included. Finally, research essential for future advances in human body modeling is discussed.
A novel channel selection scheme for olfactory EEG signal classification on Riemannian manifolds
Authors: Zhang Xiao-Nei , Meng Qing-Hao , Zeng Ming 
Published: June 2022

Abstract

Objective. The classification of olfactory-induced electroencephalogram (olfactory EEG) signals has potential applications in disease diagnosis, emotion regulation, multimedia, and so on. To achieve high-precision classification, numerous EEG channels are usually used, but this also brings problems such as information redundancy, overfitting and high computational load. Consequently, channel selection is necessary to find and use the most effective channels. Approach. In this study, we proposed a multi-strategy fusion binary harmony search (MFBHS) algorithm and combined it with the Riemannian geometry classification framework to select the optimal channel sets for olfactory EEG signal classification. MFBHS was designed by simultaneously integrating three strategies into the binary harmony search algorithm, including an opposition-based learning strategy for generating high-quality initial population, an adaptive parameter strategy for improving search capability, and a bitwise operation strategy for maintaining population diversity. It performed channel selection directly on the covariance matrix of EEG signals, and used the number of selected channels and the classification accuracy computed by a Riemannian classifier to evaluate the newly generated subset of channels. Main results. With five different classification protocols designed based on two public olfactory EEG datasets, the performance of MFBHS was evaluated and compared with some state-of-the-art algorithms. Experimental results reveal that our method can minimize the number of channels while achieving high classification accuracy compatible with using all the channels. In addition, cross-subject generalization tests of MFBHS channel selection show that subject-independent channels obtained through training can be directly used on untrained subjects without greatly compromising classification accuracy. Significance. The proposed MFBHS algorithm is a practical technique for effective use of EEG channels in olfactory recognition.
Research on Unmanned Ship Path Planning based on RRT Algorithm
Authors: Li Zhengqian , Li Lianbo , Zhang Wenjun , Wu Wenhao , Zhu Zhenyu 
Published: June 2022

Abstract
The increase of water shipping density, coupled with the increasing complexity of the waterway, the ship's intelligent collision avoidance system plays a pivotal role in the transportation safety of shipping. Therefore, it has gradually become the focus of water traffic safety research. In recent years, China is still facing a period of great development in navigation technology, safety, green, digital, intelligent will become the development trend. Although the waterway environment has been improving, the increase of shipping vessels has led to frequent accidents in the waterway, and the traditional management methods and means lack real-time monitoring and scheduling of vessels, and the management lacks intelligence and information technology. In this paper, we solve the ship path problem from the point of path planning of intelligent ships. RRT* algorithm is a common method for path planning, but the traditional RRT* algorithm has problems in ship path planning, slow convergence speed, many path turns and large curvature fluctuations. For these problems, an improved fast extended random tree algorithm (Bi-RRT) is proposed. The improved RRT* algorithm is simulated and verified by MATLAB simulation platform. The simulation results show that the research algorithm can shorten the planning time, reduce the number of iterations, and has better feasibility and effectiveness.
Design and Implementation of Farmland Environment Monitoring System Based on Micro Quadrotor UAV
Authors: Liu Yongheng , Liu Shanmei 
Published: June 2022

Abstract
In view of the lack of effective basic information collection mechanism for outdoor farmland, this paper designs and implements a farmland environment monitoring system based on micro quadrotor UAV. In this system, the micro quadrotor UAV is equipped with sensors such as DHT11, MS5611, SRH-01 for collecting farmland environment information, and the purpose of farmland environment information collection and monitoring is realized under the control of software. The system consists of three parts: the flight control module, the information acquisition module, and the ground station module. This paper introduces the main functions of each part of the system, the design and implementation of software and hardware, and gives the experimental results. The results show that the system can be used to effectively monitor the farmland environment. Compared with the traditional agricultural monitoring system, it has the characteristics of low cost, high efficiency and easy operation.