bluuebunny/crossref_metadata_2025_split huggingface dataset:
Becoming Vincent: Using the “hero’s journey” to connect and design (digital) tourist experiences along Vincent van Gogh’s heritage locations
Authors: Calvi Licia , Hover Moniek 
Published: August 2022

Abstract

This case describes a research and design project, commissioned to Breda University of Applied Sciences (the Netherlands) by several regional tourism organizations in Brabant, a province in the south of the Netherlands. The aim of the project was to draft a narrative concept and storylines that would link and upgrade the various Vincent Van Gogh heritage sites in the area in order to eventually attract international tourists to the province, especially in view of the commemoration of Van Gogh’s 125
th
death anniversary in 2015. In the creative phase, we used a 12 steps storytelling model (
Bouma, 2010
). This is based on Campbell’s “monomyth” or “hero’s journey” (1945). It applies to many great tales and chronologically orders the (metaphorical) steps that drive the “hero” in his actions. We compared the 12 steps to Vincent’s life. The first 6 steps, which took place in Brabant, we placed under the overarching narrative concept of “Becoming Vincent”. At various locations in the province, tourists can experience how the events in Vincent’s early life led him to become the tormented yet brilliant artist so well-known from his time in France (which we defined as “Being Vincent”), thus making a full narrative circle.

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Vancouver Island University World Leisure Centre of Excellence
© Licia Calvi & Moniek Hover 2022
International comparison CCQM-K165: dimethyl sulfide in nitrogen at 5 nmol mol-1
Authors: Lee S , Kang J H , Kim Y D , Kim D H , Jung J , Ma H , Wu H , Bartlett S , Worton D , Murugan A , Brewer P J , Konopelko L A , Kolobova A V , Malginov A V , Dobryakov Y G , Pankratov V V , Efremova O V 
Published: August 2022

Main text
Dimethyl sulfide (DMS) is produced mainly by the metabolic activities of oceanic phytoplankton and the most abundant natural sulfur compound in the atmosphere. DMS plays an important role for climate change since it is oxidized and forms sulfate aerosols in the atmosphere, affecting the Earth's radiation budget directly and indirectly. DMS is designated as one of the target reactive gases and monitored in the World Meteorological Organization (WMO) Global Atmospheric Watch (GAW) programme. It is important to accurately monitor its global background levels with SI traceability for better understanding of the role of DMS in climate change. This comparison is organized by Korea Research Institute of Standards and Science (KRISS). Gas mixtures gravimetrically prepared by KRISS are used for demonstrating measurement equivalence at the highest metrological level. This comparison (Track C) is designed to underpin participants' measurement capabilities of trace level DMS in nitrogen at the nominal amount fraction of 5 nmol mol-1.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Spurious minimizers in non uniform Fourier sampling optimization
Authors: Gossard Alban , de Gournay Frédéric , Weiss Pierre 
Published: August 2022

AbstractA recent trend in the signal/image processing literature is the optimization of Fourier sampling schemes for specific datasets of signals. In this paper, we explain why choosing optimal non Cartesian Fourier sampling patterns is a difficult nonconvex problem by bringing to light two optimization issues. The first one is the existence of a combinatorial number of spurious minimizers for a generic class of signals. The second one is a vanishing gradient effect for the high frequencies. We conclude the paper by showing how using large datasets can mitigate the first effect and illustrate experimentally the benefits of using stochastic gradient algorithms with a variable metric.
Ultralow electron emission yield achieved on alumina ceramic surfaces and its application in multipactor suppression
Authors: Wang Dan , Mao Zhangsong , Ye Zhen , Cai Yahui , Li Yun , He Yongning , Qi Kangcheng , Xu Yanan , Jia Qingqing 
Published: August 2022

Abstract
Alumina ceramics used in microwave systems are susceptible to the multiplication of secondary electron emission on the surface due to the influence of resonance between electrons and the radiofrequency electric field, and a detrimental multipactor effect may therefore be triggered. For the alumina-loaded microwave components, it is essential to achieve low secondary electron yield (SEY) on the inserted alumina surfaces to mitigate multipactor. In this work, to achieve an ultralow SEY surface of alumina, two recognized low-SEY treatments were combined. For the primary SEY suppression, a series of microstructures were fabricated on the alumina surfaces with varied porosity and aspect ratio at the hundred-micrometer scale by infrared laser etching. The microstructure with 52.14% porosity and 1.78 aspect ratio showed an excellent low-SEY property, which could suppress the SEY peak value (
δ
m
) of alumina from 2.46 to 1.00. For the secondary SEY suppression, the SEY dependence of TiN coating on sputtering parameters was studied, and the lowest
δ
m
of 1.19 was achieved when the gas flow ratio of Ar:N2 was 15:7.5. Thereafter, by depositing TiN ceramic coating onto the laser-etched porous samples, an ultralow SEY, with
δ
m
of 0.69, was achieved on the alumina surfaces. The simulation work revealed the impact of dielectric surface charge on electron multiplication and revealed a mechanism of using low-SEY surfaces to inhibit multipactor. Some coaxial filters filled with alumina were fabricated for verification; the results revealed that the multipactor threshold increased from 125 W to 425 W after applying the TiN-coated porous alumina, and to 650 W after treating another multipactor-sensitive area with the same low-SEY process. This work developed an advisable method to sharply reduce SEY, which is of great significance for the multipactor mitigation of alumina-loaded microwave components.
A self-adaptive DRSN-GPReLU for bearing fault diagnosis under variable working conditions
Authors: Zhang Zhijin , Zhang Chunlei , Zhang Xin , Chen Lei , Shi Huaitao , Li He 
Published: August 2022

Abstract
Recently, deep learning has been widely used for intelligent fault diagnosis of rolling bearings due to its no-mankind feature extraction capability. The majority of intelligent diagnosis methods are based on the assumption that the data collected is from constant working conditions. However, rolling bearings often operate under variable working conditions in the real diagnosis scenario, which reduces the generalization capability of the diagnosis model. To solve this problem, a self-adaptive deep residual shrinkage network with a global parametric rectifier linear unit (DRSN-GPReLU) is proposed in this paper. First, the DRSN is used as the basic architecture to improve the anti-noise ability of the proposed method. Then, a novel activation function—the GPReLU—is developed, which can achieve better intra-class compactness for vibration signals, and the inter-class samples are better mapped into remote areas. Finally, a sub-network based on the attention mechanism is designed to automatically infer the slope of the GPReLU. Various experimental results demonstrate that the DRSN-GPReLU can realize better performance compared with traditional methods under variable working conditions, and has better robustness under noise interference.
Ag@AgCl nanoparticles grafted on carbon nanofiber: an efficient visible light plasmonic photocatalyst via bandgap reduction
Authors: Thao Vu Dinh , Dung Nguyen Trung , Ha Nguyen Thu , Minh Ho Ngoc , Duong Hung Cong , Van Nguyen To , Son Luong Trung , Huy Nguyen Nhat , Thu Tran Viet 
Published: August 2022

Abstract
A novel silver@silver chloride/carbon nanofiber (Ag@AgCl/CNF) hybrid was synthesized by electrospinning, heat treament, and subsequent in situ chemical oxidation strategy. The synthesized materials were characterized using x-ray diffraction, Fourier-transform infrared, UV–Vis diffuse reflectance spectroscopy, scanning electron microscopy, and energy dispersive x-ray. The experimental results reveal that the electrospun AgNO3/PAN was carbonized and reduced to Ag/CNF, the Ag/CNF was then partly oxidized to form Ag@AgCl/CNF in which Ag@AgCl nanoparticles (ca. 10–20 nm in diameter) were uniformly bounded to CNFs (ca. 165 nm in diameter). The obtained Ag@AgCl/CNF was employed for Na2S2O8 activation under visible light irradiation to treat Rhodamine B (RhB). A remarkable RhB removal of ca. 94.68% was achieved under optimal conditions, and the influence of various parameters on removal efficiency was studied. Quenching experiments revealed that HO•, SO4
•−, 1O2, and O2
•− were major reactive oxygen species, in which O2
•− played a pivotal role in RhB degradation. A possible mechanistic route for RhB degradation was proposed.
Design and performance analysis of gate-all-around negative capacitance dopingless nanowire tunnel field effect transistor
Authors: Solay Leo Raj , Kumar Naveen , Amin S Intekhab , Kumar Pradeep , Anand Sunny 
Published: August 2022

Abstract
In this paper, a novel low power consumption device based on a dopingless gate-all-around nanowire tunnel field effect transistor (TFET) with negative capacitance (NC) effect is proposed. NC is a robust approach in solving the bottleneck issues encountered by devices operating in nanoscale domains. Additionally, the threshold voltage (V
T) and subthreshold swing (SS) are dropped significantly to less than 60 mV/decade. Negative capacitance makes a significant contribution to the device’s performance by lowering the operating voltage for low-power applications. To calculate the optimum bias, the Landau–Khalatnikov (L–K) equation was used. To evaluate the influence of NC, the ferroelectric (FE) material PZT (lead zirconate titanate), which has perovskite properties, was used as a gate insulator. Thus, the gate-all-around dopingless nanowire TFET (GAA DL NW TFET) device structure is reconfigured into GAA NC DL NW TFET. PZT has an appropriate polarization rate, high dielectric capacitance, and a high degree of reliability. To achieve an SS lower than 60 mV/decade at lower V
T, effective tuning of the FE thickness is critical to avoid hysteresis, which enhances the overall performance of the proposed device. The aggressively scaled device has the problem of fabrication complexity and its associated cost that is addressed with the help of the dopingless technique to the nanowire-based TFET. The enhancement of the ON-current with an improved steep SS was addressed. With the application of the NC technique, the proposed device showcased an improved 4 µA µm−1 of I
ON, and 1012 of current ratio. Additionally, the influence of the variation in FE thickness on the performance parameters is examined. The proposed device structure operates at a minimum operating voltage, making it an ideal choice for low-power voltage applications.
Improvement of DC and f
T performances of graded-channel HEMTs by polarization engineering
Authors: Geng Lixin , Zhao Hongdong , Yu Kuaikuai , Ren Xinglin , Yang Dongxu , Liu He 
Published: August 2022

Abstract
The graded-channel high-electron-mobility transistors with graded AlGaN buffer are investigated in this paper by Atlas drift-diffusion simulation. The short-channel effects are suppressed in a manner by employing the graded AlGaN buffer instead of the fixed Al-content AlGaN buffer. Then, the Al-content of the graded AlGaN channel is also optimized. The flatter and wider transconductance and current gain cutoff frequency (f
T) curves are garnered by utilizing the graded AlGaN channel whose top Al-content is the same as the AlGaN barrier. At the gate length (L
G) of 50 nm, the saturated drain current of the proposed device is 0.98 A mm−1, which is 34% higher than the reference device. Simultaneously, the f
T and f
T × L
G are also analyzed with the gate length from 50 nm to 250 nm. The f
T of the proposed architecture is 181 GHz at L
G = 50 nm and V
GS = 1 V which is 12% higher than the reference device under the same conditions. The f
T × L
G is up to 19.2 GHz · μm at the gate length of 250 nm, and it obtains a 12% improvement over the reference device.
Design and analysis of a double gate SiGe/Si tunnel FET with unique inner-gate engineering
Authors: Dash Sidhartha , Mishra Guru Prasad 
Published: August 2022

Abstract
An inner-gate engineered double gate heterostructure tunnel field effect transistor (SiGe/Si-IGTFET) has been presented. The inner-gate is grown at the center of the Si0.6Ge0.4/Si TFET, followed by a thin HfO2 dielectric layer. The drain current performance of the suggested device has been investigated comprehensively to discover its efficacy. The device provides much-lower ambipolarity (by 6 decades) compared to heterostructure TFET with a similar dimension. The SiGe/Si-IGTFET device has also shown higher immunity against short channel effects such as drain induced barrier lowering and gate induced drain leakage current (I
GIDL). To examine the impact of inner-gate, various DC parameters such as ambipolar current (I
amb), on current (I
on), I
on/I
amb current ratio, average subthreshold swing (SS), surface potential, and electric field have been considered. The device offers a much improved current ratio (I
on/I
amb) of 1.78 × 1012 with an average SS of 23 mV decade−1 by optimizing the position and dielectric material of the inner-gate. The simulation of the suggested device is carried out using a 2D Silvaco Technology Computer-Aided Design (TCAD) device simulator.
DFT study of the structural, electronic and optoelectronic properties of PDAPb(I1−x
Br
x
)4 perovskites
Authors: Zhang Xiaoxiao , Wang Pingjian , Wu Qingyu , Xu Ling , Chen Mingyu , Kang Yunxin , Sun Chengshuai , Wei Guangfen , Qiao Zhuhui , Lin Zhonghai 
Published: August 2022

Abstract
PDAPb(I1−x
Br
x
)4 (NH3CH2CH2CH2NH3Pb(I1−x
Br
x
)4, 0 ⩽ x ⩽ 1) is a two-dimensional Dion–Jacobson phase perovskite that has attracted extensive attention owing to its potential as a promising candidate for optoelectronic (OE) application. Herein, the structural, electronic, and optoelectronic properties of PDAPb(I1−x
Br
x
)4 by gradually substituting I with Br at 1/4 intervals starting from PDAPbI4 based on the first-principles approach of density functional theory. With the increase in Br content, the crystal volume of PDAPb(I1−x
Br
x
)4 decreases nonlinearly. The electronic structure shows the bandgap presents an increasing trend (PDAPbI4 (2.272 eV)–PDAPb(I0.5Br0.5)4 (2.475 eV)–PDAPbBr4 (2.678 eV)). The most stable structure that can be obtained from the calculated formation energy (E
f) is PDAPb(I0.5Br0.5)4. The partial density of states reveals that the contribution of electrons is mainly related to the [PbX6]4− (X = I, Br) octahedron. The organic molecule PDA is almost not involved in the conductivity. The optoelectronic properties indicates that the characteristic peaks of the optoelectronic parameters of PDAPb(I1−x
Br
x
)4 coincide with the bandgap. The doping ratio of 0.5 not only has the largest dielectric coefficient, but also has good conductivity in the visible region. Therefore, PDAPb(I0.5Br0.5)4 is extremely promising for applications in OE industry. This study provides some theoretical guidance for experiments and the search for new efficient and environmentally friendly OE materials.
Charge–pseudospin coupled diffusion in semi-Dirac graphene: pseudospin assisted valley transport
Authors: Rostamzadeh Saber , Sarisaman Mustafa 
Published: August 2022

Abstract
Modifying the hexagonal lattices of graphene enables the repositioning and merging of the Dirac cones which proves to be a key element in the use of these materials for alternative electronic applications such as valleytronics. Here we study the nonequilibrium transport of carriers within a system containing two Dirac cones in both standard graphene and semi-Dirac graphene. In the latter, the lattice modifications cause the relativistic and parabolic dispersion bands to coexist, furnishing the Fermi surface with a rich pseudospin texture and a versatile Dirac cones separation. We construct a kinetic theory to investigate the carrier diffusion and uncover that the pseudospin index contributes to the particle current and, like the real spin, can induce a magnetoelectric effect, and argue that the pseudospin–charge coupling can be utilized to design a pseudospin filter. We explore the charge dynamics inside a quasi-one-dimensional conductor using the drift-diffusion model and detect the pseudospin accumulation at the sample boundaries. We find that, while, for graphene, the accumulation contributes to an extra voltage drop between the sample interfaces, the semi-Dirac system presents a similar accumulation that is strikingly equipped with valley polarization, signifying an essential tool for the control of valley manipulation and chirality transport using the pseudospin.
Theoretical model of giant oscillations of the photocurrent in GaAs/AlAs p-i-n diodes
Authors: Larkin I A , Vdovin E E , Khanin Yu N 
Published: August 2022

Abstract

p-i-n semiconductor heterostructures are common optoelectronic devices with numerous applications hinging on the non-trivial kinetics of photoexcited charge carriers within them. One such effect manifests itself as an oscillation of the photocurrent versus the applied bias voltage and has been qualitatively studied recently. However, a model that would explain the experimentally observed magnitude of the oscillations is, to the best of our knowledge, still absent. In the present work we consider a model wherein electrons from the highly-doped p-region are resonantly captured into 2D states of the triangular quantum well formed by the undoped i-region via scattering on impurities. We find that the rate of capture into 2D states is determined by the form of the wave function of these states and increases sharply when the tail of the wave function penetrates deeply into the highly doped region, resulting in a sharp increase in the photocurrent. Our analysis of the dependence of the positions of the photocurrent maxima versus bias voltage shows good agreement with experiments and confirms the applicability of our model.
DigiShip - Digitalisation of ship operations
Authors: Yue S P , Chua T Y , Fan J W 
Published: August 2022

Abstract
Platform machineries and sensors onboard the vessel necessary for ship operations are connected to ST Engineering’s NERVA Ship Management System and Sensemaking System (SMS2) to remotely control and monitor platform machineries and sensors from the bridge, or monitored from an operator station on the shore. A case study on remote connection to the shore command centre for a tugboat established using local telco’s 4.5G network with operations in the coastal waters of Singapore is discussed. A systematic approach for security assessment of the NERVA SMS2 is also discussed. Threat modelling and risk assessment for major systems are done using STRIDE and HEAVENS methodologies respectively. With platform systems and sensors connected to NERVA, sensors data collected can be analyzed via the predictive maintenance function of NERVA SMS2 to reduce the vessel’s life-cycle cost. NERVA SMS2 performs advanced analytics on the collected sensors data, providing predictive diagnostics information, which predicts potential machinery failure before it happen, which can greatly reduce unplanned downtime. In addition, there is decision support for maintenance, which are aligned with OEM recommendations, guiding the maintenance operator on part that need to be replaced or serviced based on the analysed symptoms reflected through the data.
Guidelines for cyber risk management in shipboard operational technology systems
Authors: Rajaram Priyanga , Goh Mark , Zhou Jianying 
Published: August 2022

Abstract
Over the past few years, we have seen several cyber incidents being reported, where some of the primary causes were the lack of proper security controls onboard the ship and crew awareness on cybersecurity. In response to the growing cyber threat landscape in the maritime sector, we have developed a set of guidelines for maritime cyber risk management, focusing on four major shipboard Operational Technology (OT) systems that are crucial for the day-to-day operation of ships. These four OT systems are: Communication Systems, Propulsion, Machinery and Power Control Systems, Navigation Systems and Cargo Management Systems. The guidelines identify the cyber risks in each of the OT systems and recommend the necessary actions that can be taken to manage risks in each shipboard OT system. In this paper, we introduce the new guidelines, which include cyber risks, mitigation measures, cyber risk assessment, and a checklist to help shipowners and maritime authorities assess and enhance cyber hygiene of their vessels. Our guidelines have been disseminated by the Maritime and Port Authority of Singapore (MPA) to owners and operators of the Singapore Registry of Ships for their reference and use.
Application of Dynamic-Task-Based Hazard Identification Method to Remote Operation of Experimental Ship Shinpo
Authors: Miyake R , Kudo J , Ishimura E , Itoh H , Yuzui T , Shiokari M , Kawashima S , Hirata K , Niki Y , Kobayashi M , Sawada R , Inaba S 
Published: August 2022

Abstract
Recently, the development of autonomous ships has been progressing worldwide; thus, it is essential to ensure the safety of these ships for their successful realization. In previous studies, task-based hazard identification (HAZID) methods were developed as safety assessment methods for autonomous ships to identify hazards related to the tasks of ship operators. In this paper, a dynamic-task-based HAZID (DTB-HAZID) method, which is an improvement on the previously developed task-based HAZID method, is proposed, and the results of the risk analysis obtained from applying this method to a small experimental ship, Shinpo, are reported. The DTB-HAZID method was designed to analyze time-related hazards such as task delays and the simultaneous occurrences of tasks. To achieve this, the activity diagram, which is a type of unified modeling language (UML) model, was introduced to create task flow diagrams. In the risk analysis, first, the tasks of the operator who remotely navigated Shinpo were analyzed, and the corresponding task flow diagrams were created. Then, the time-related hazards were identified with reference to these diagrams. Finally, the obtained hazards were reviewed, and the applicability of the proposed method in hazard analysis from the perspective of time was discussed.
Evolution of Safety in Marine Systems: From System-Theoretic Process Analysis to Automated Test Scenario Generation
Authors: Pedersen Tom Arne , Neverlien Åse , Glomsrud Jon Arne , Ibrahim Imran , Mo Sigrid Marie , Rindarøy Martin , Torben Tobias , Rokseth Børge 
Published: August 2022

Abstract
The technological development ongoing in the maritime industry is making the ground for remotely and even autonomously operated vessels in the future. This is a result of increased data collection, processing and inter-connectivity capabilities. The industry is working towards increased safety, improved efficiency of the ship’s operation, improved environmental performance and a more cost-effective shipping. New technologies are developed in order to reach these goals, and DNV as a Class society is developing frameworks for assurance of such systems. The certification of ships and vessels with a high degree of automation or autonomy needs an increased focus on software, an understanding of the human-to-machine interaction and the resulting ability to solve complex operations in a secure way. In this paper, a method for high-level risk analysis of the safety aspects of autonomous vessels combined with automatic simulation-based testing of a control system, is proposed.