bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of self‐healing hydrophobic coating and its anticorrosion property
Authors: Ma Conghuan , Li Jiahong , Wang Jianyu , Bian Da , Zhao Yongwu 
Published: February 2022

AbstractIn this study, a composite coating of polytetrafluoroethylene (PTFE) and fluorinated alkyl silane (FAS, C16H19F17O3Si) is prepared on AISI 304 L stainless steel. Scanning electron microscope and X‐ray photoelectron spectroscopy are used to analyze the microstructure and chemical group changes of PTFE–FAS coating (PF coating) before and after sulfuric acid (H2SO4) corrosion and after heat treatment. In addition, differential scanning calorimeter is performed to study the thermodynamic properties of PF coating. The corrosion resistance of PF coating under the above conditions is tested by the electrochemical experiment. The results show that acid and abrasion treatments can reduce the hydrophobic properties of the coatings, and the damage caused by acid is more serious. Heat treatment can repair the hydrophobic properties of the coating damaged by acid and abrasion. In addition, PF coating has an excellent corrosion resistance, but after H2SO4 treatment, the protection efficiency (PE) decreases from 89.09% to 2.51%, indicating that the corrosion resistance of PF is severely damaged. However, PE of PF coating increases to 76.83% after heat treatment. This repair ability improves the corrosion resistance of the coating. At the same time, the related mechanism is also clarified.
Teachers’ consistency of emotional support moderates the association between young children's regulation capacities and their preschool adjustment
Authors: Bailey Craig S. , Ondrusek Ashlin R. , Curby Timothy W. , Denham Susanne A. 
Published: February 2022

AbstractPreschool teachers’ consistency of warm, sensitive, and responsive interactions with children may be more important than average levels and may moderate the association between children's cognitive and emotion regulation and their preschool adjustment. A sample of 312 boys and girls aged 32–68 months in 44 classrooms at 16 privately‐funded centers and Head Starts completed assessments of emotion and cognitive regulation and were rated by their teachers using measures of social‐emotional functioning. Teacher–child interactions were rated for emotional support. Multilevel structural equation modeling was used to simultaneously explore three aspects of preschool adjustment. Children who were the least regulated were more adjusted to preschool in classrooms where teachers were more consistent in their emotional support, over and above mean emotional support and after controlling for child‐ and preschool‐level covariates. Consistency matters for children's preschool adjustment perhaps even more so than average levels of emotional support.
In Situ Synthesis of Monodispersed CsPbBr3/PGMA‐EDMA Microspheres with High Stability for White Light‐Emitting Diodes
Authors: Xia Hongjun , Li Qingfeng , Wang Lin , Ding Hongwei , Hu Bin , Jin Lin 
Published: February 2022

AbstractRecently, perovskite quantum dots (PQDs) have attracted significant attention owing to their excellent optoelectronic properties in efficient white light‐emitting diodes (WLEDs). However, their poor stability for UV irradiation and high temperature hinders their practical applications. In this study, CsPbBr3 inorganic perovskite quantum dots (CPB QDs) are in situ grown into the channels of PGMA‐EDMA microspheres to improve their UV irradiation and thermal stability. Moreover, It is found that the pore structure of the PGMA‐EDMA microspheres can effectively block the aggregation between the CPB QDs, which effectively reduces the anion exchange and self‐absorption of fluorescence. Finally, A WLED is fabricated with the CPB/PGMA‐EDMA microspheres and the red‐emitting BaGe4O9:Eu3+ phosphor as color converters; The Commission Internationale de I'Eclairage color coordinates of the fabricated WLED is (0.33, 0.34), which is close to the standard white emission coordinate (0.33, 0.33). The luminous efficiency of as‐prepared WLED is 34.9 lm W−1 with a color render index (CRI) of 74.6, demonstrating that the CPB/PGMA‐EDMA microspheres are potential for application in lighting and display technologies.
Impact time and angle constrained guidance via range‐based line‐of‐sight shaping
Authors: Chen Yadong , Shan Jiayuan , Liu Junhui , Wang Jianan , Xin Ming 
Published: February 2022

AbstractIn this article, impact time and angle constrained guidance law is proposed using a range‐based line‐of‐sight (LOS) shaping strategy. The relative motion of missile and target is described in a polar coordinate, where the LOS angle can be shaped as a polynomial function of range‐to‐go. The order of the polynomial function is selected according to the number of constraints. Coefficients of the polynomial function are determined by the boundary conditions and solved through a simple integral equation, which facilitates the onboard implementation. Guidance command is designed in a state feedback form to track the shaped trajectory. The proposed guidance law shows some advantages over several similar polynomial shaping based guidance laws. Multiple simulation studies demonstrate the effectiveness of the proposed guidance law.
Fabrication of Biobased Nanocomposites by Chemical Intervention of Nano‐Hydroxyapatite in Aloe Vera Gel‐Guava Seed Matrix for Bone Tissue Engineering
Authors: Mirza Sumbul , Jolly Reshma , Zia Iram , Umar Mohd S. , Owais Mohammad , Shakir Mohammad 
Published: February 2022

AbstractThe sharp increase in the bone defect related cases have derived an urgent search for novel bone implants which possess identical mechanical aspect as natural bone, along with commendable osteogenic property. Thus, to accomplish these requirements, in the present study, nano‐hydroxyapatite (nHA) reinforced guava seed (GS) – aloe vera (AV) gel nanocomposites were synthesized via a co precipitation approach with an attempt to induce bone mimicking activity. Three ternary systems were fabricated varying the concentration of different components as – nHA/GS/AV in the ratio of 70/20/10 (HGAV1), 70/15/15 (HGAV2) and 70/10/20 (HGAV3). All of the nanocomposites revealed a high cellular viability confirmed from fluorescence microscopy, increased osteogenic activity, phenomenal antibacterial activity, lower haemolysis, and high protein adsorption. These findings suggested that the use of natural products GS and AV gel for fabrication of nanocomposites gave them profound bioactivity and biocompatibility and exhibited a great potential in dental and orthopaedic applications.
Photocatalytic Degradation of Organic Dyes with Magnetically Separable PANI/Fe3O4 Composite under Both UV and Visible‐light Irradiation
Authors: Demir Muslum , Taymaz Bircan Haspulat , Sarıbel Muhammet , Kamış Handan 
Published: February 2022

AbstractThe creation of a novel composite photocatalyst has gained great attention in the field of organic dye remediation. Herein, the PANI/Fe3O4 photocatalyst has been prepared using the chemical oxidative polymerization of aniline. The as‐prepared photocatalyst represents a denser and uniform morphology along with strong magnetic properties. The photocatalytic activity of the PANI/Fe3O4 was investigated for the degradation of Malachite Green (MG), Jakazol Kala (JK) and Levafix Red (LR). In the presence of PANI/Fe3O4 composite, the reaction rate constants were found to be 0.1997, 0.0521, and 0.1993 min−1 for MG, JK and LR, under UV‐light irradiation and 0.0522, 0.0491, 0.0544 min−1 under visible light irradiation, respectively. The nanocomposite can be easily separated from the treated water and reused several times. The suppression of electron recombination, the reduced bandgap and the broad light‐harvesting in both UV and visible‐light regions contribute to the advanced photocatalytic performance of the PANI/Fe3O4.
A tuned liquid mass damper implemented in a deep liquid storage tank for seismic vibration control of short period structures
Authors: Pandey Dhirendra K. , Mishra Sudib K. , Chakraborty Subrata 
Published: February 2022

SummaryDeep liquid storage tanks cannot be implemented as tuned liquid damper (TLD) as the depth ratios often exceed the limit (0.3) for nonlinear sloshing and wave breaking. This study exploits the impulsive liquid mass to implement a tuned liquid mass damper (TLMD) by flexibly attaching the tank to the structure. The flexible mounting allows tuning of vibration of the impulsive mass to short period structures. The small, suboptimally tuned sloshing mass may also have minor contribute in dissipation. The performance of the TLMD is demonstrated by simulation and shake table experiments. The simulation involves solution of the governing equations for the structure‐TLMD system, in which the vibration of liquid is described by the Housner model. The optimal parameters for tuning are obtained through optimization. The dynamic response evaluation employs a suite of far field, recorded ground motions of varying hazard levels to demonstrate robustness. The simulation and the experiment results corroborate well. Comparative assessments with TMD and TLD with identical mass ratios show comparable efficiency. Given that the stored liquid is employed for the functional purpose (unlike the added mass in TMD), the proposed TLMD may be a preferred alternative to conventional tuned mass damper (TMD) or TLD.
Triboaktive Beschichtungen
Authors: Bobzin Kirsten , Kalscheuer Christian , Thiex Matthias 
Published: February 2022

ZusammenfassungHochbelastete fluidfrei geschmierte Zahnradkontakte führen aufgrund von Reibungswärme und Verschleißerscheinungen wie Überhitzen, Fressen sowie Verschleiß zu frühzeitigen Ausfällen des Systems. Eine Möglichkeit zur Reduktion von Reibung und Verschleiß ist die Einbringung von Festschmierstoffen wie Molybdändisulfid (MoS2) und Wolframdisulfid (WS2) durch die Applikation von Physical Vapour Deposition (PVD)‐Beschichtungen. Hierzu wurde eine (Cr,Al)N‐Hartstoffmatrix mit Mo, W und S modifiziert und so die Bildung von molybdän‐ und wolframbasierten sulfidischen und oxidischen Verbindungen im tribologischen Kontakt ermöglicht. Die triboaktiven und gradierten (Cr,Al)N+Mo:W:Sg‐Schichtvarianten zeigen für den Einsatz auf Zahnrädern hinsichtlich Reibungsreduktion und Verbundhaftung auf 16MnCr5E hohes Potential. Dabei konnte die tribologische Leistungsfähigkeit auch im Vergleich zur bereits erfolgreich getesteten gradierten (Cr,Al)N+Mo:Sg‐Beschichtung signifikant gesteigert werden.
A global 1‐km downscaled SMAP soil moisture product based on thermal inertia theory
Authors: Fang Bin , Lakshmi Venkat , Cosh Michael , Liu Pang‐Wei , Bindlish Rajat , Jackson Thomas J. 
Published: February 2022

AbstractMicrowave remote sensing technology has been applied to produce soil moisture (SM) retrievals on a global scale for various studies and applications. However, due to the limitations of current technology, the native spatial resolution of currently available passive microwave SM products is on the order of tens of kilometers, and this resolution cannot be used to characterize SM variability on a regional scale. To overcome this limitation, a downscaling algorithm based on the thermal inertia theory–derived relationship between SM and temperature difference was developed using outputs from the Global Land Data Assimilation System–Noah Land Surface Model and the land long‐term data record–Advanced Very High Resolution Radiometer normalized difference vegetation index (NDVI) dataset and applied to the Aqua Moderate Resolution Imaging Spectroradiometer land surface temperature/NDVI data to produce a downscaled 1‐km Soil Moisture Active Passive (SMAP) radiometer daily SM product, respectively, at 6:00 a.m. and 6:00 p.m. on a global scale from 2015 to 2020. The evaluation results reveal that the downscaling model performs better in the middle or low latitudes than in high latitudes. It also performs better in warm months than in cold months. The in situ SM observations from dense networks around the world were used to validate the 1‐km and enhanced 9‐km SMAP SM data. The validation metrics indicated that both the 1‐km and 9‐km SM data have overall overestimation trends, and the unbiased RMSE (0.063 m3m–3on average), mean absolute error (0.052 m3m–3on average), and spatial standard deviation (0.025 m3m–3on average) of the 1 km data are generally more accurate than the metrics of the 9‐km SM data, which indicates that the downscaled data provide reliable observed SM information.
Accessible Privacy
Authors: Wang Yang , Price Charlotte Emily 
Published: February 2022

AbstractEnd-user privacy mechanisms have proliferated in various types of devices and application domains. However, these mechanisms were often designed without adequately considering a wide range of underserved users, for instance, people with disabilities. In this chapter, we focus on the intersection of accessibility and privacy, paying particular attention to the privacy needs and challenges of people with disabilities. The key takeaway messages of this chapter are as follows: (1) people with disabilities face heightened challenges in managing their privacy; (2) existing end-user privacy tools are often inaccessible to people with disabilities, making them more vulnerable to privacy threats; and (3) design guidelines are needed for creating more accessible privacy tools.
The Ethics of Privacy in Research and Design: Principles, Practices, and Potential
Authors: Kisselburgh Lorraine , Beever Jonathan 
Published: February 2022

AbstractThe contexts of sociotechnical privacy have evolved significantly in 50 years, with correlate shifts in the norms, values, and ethical concerns in research and design. We examine these eras of privacy from an ethics perspective, arguing that as contexts expand from the individual, to internet, interdependence, intelligences, and artificiality, they also reframe the audience or stakeholder roles present and broaden the field of ethical concerns. We discuss these ethical issues and introduce a principlist framework to guide ethical decision-making, articulating a strategy by which principles are reflexively applied in the decision-making process, informed by the rich interface of epistemic and ethical values. Next, we discuss specific challenges to privacy presented by emerging technologies such as biometric identification systems, autonomous vehicles, predictive algorithms, deepfake technologies, and public health surveillance and examine these challenges around five ethical principles:autonomy,justice,non-maleficence,beneficence, andexplicability. Finally, we connect the theoretical and applied to the practical to briefly identify law, regulation, and soft law resources—including technical standards, codes of conduct, curricular programs, and statements of principles—that can provide actionable guidance and rules for professional conduct and technological development, codifying the reasoning outcomes of ethics.
Privacy-Enhancing Technologies
Authors: Seamons Kent 
Published: February 2022

AbstractAn increasing amount of sensitive information is being communicated and stored online. Frequent reports of data breaches and sensitive data disclosures underscore the need for effective technologies that users and administrators can deploy to protect sensitive data. Privacy-enhancing technologies can control access to sensitive information to prevent or limit privacy violations. This chapter focuses on some of the technologies that prevent unauthorized access to sensitive information. These technologies include secure messaging, secure email, HTTPS, two-factor authentication, and anonymous communication. Usability is an essential component of a security evaluation because human error or unwarranted inconvenience can render the strongest security guarantees meaningless. Quantitative and qualitative studies from the usable security research community evaluate privacy-enhancing technologies from a socio-technical viewpoint and provide insights for future efforts to design and develop practical techniques to safeguard privacy. This chapter discusses the primary privacy-enhancing technologies that the usable security research community has analyzed and identifies issues, recommendations, and future research directions.
Education 2.0: A Vision for Educational Transformation in Egypt
Authors: Moustafa Nariman , Elghamrawy Ebtehal , King Katherine , Hao Yu 
Published: February 2022

AbstractThis chapter presents a comprehensive description and analysis of Egypt’s Education 2.0 (EDU. 2.0) reform plan for grades K-2. The reform’s five key components are described including the new multidisciplinary curriculum, technology integration, school management Continuous Professional Development (CPD), access and infrastructure, and reformed assessment. We analyze this reform from five perspectives and conclude that a cultural shift, high-quality CPD, and a robust accountability system are imperative to sustainable educational reform in Egypt. This cannot be achieved without a shared vision and engagement between teachers, parents, and Egypt’s Education Ministry.
An Emerging Dragon: Vietnamese Education After Resolution 29
Authors: Le Anh Vinh , Han Puyuan , Khaing Maw Maw , Farrar Olivia 
Published: February 2022

AbstractIn the years since its independence in 1975, Vietnam has experienced much political, social, economic, and educational change. Multiple comprehensive reforms over the past few decades have served to transform Vietnam from a country of war into an “emerging dragon” across all social and economic sectors, including education. In 2013, Vietnam passed one of the most significant pieces of education legislature in the country’s history: Resolution 29, a fundamental and comprehensive education reform that put the development of Vietnam’s education system at the top of socioeconomic development plans. This chapter accounts for the major changes of Vietnam education system after Resolution 29, including the country’s “success formula” as well as its lapses. It makes further recommendations for educational policymakers and educators in Vietnam regarding the role of the education sector in the coming ever-disruptive social and economic context.
Crowdfunding Non-fungible Tokens on the Blockchain
Authors: Basu Sean , Basu Kimaya , Austin Thomas H. 
Published: February 2022

AbstractNon-fungible tokens (NFTs) have been used as a way of rewarding content creators. Artists publish their works on the blockchain as NFTs, which they can then sell. The buyer of an NFT then holds ownership of a unique digital asset, which can be resold in much the same way that real-world art collectors might trade paintings.However, while a deal of effort has been spent on selling works of art on the blockchain, very little attention has been paid to using the blockchain as a means of fundraising to help finance the artist’s work in the first place. Additionally, while blockchains like Ethereum are ideal for smaller works of art, additional support is needed when the artwork is larger than is feasible to store on the blockchain.In this paper, we propose a fundraising mechanism that will help artists to gain financial support for their initiatives, and where the backers can receive a share of the profits in exchange for their support. We discuss our prototype implementation using the SpartanGold framework. We then discuss how this system could be expanded to support large NFTs with the 0Chain blockchain, and describe how we could provide support for ongoing storage of these NFTs.
Statistical significance of the sterile-neutrino hypothesis in the context of reactor and gallium data
Authors: Berryman Jeffrey M. , Coloma Pilar , Huber Patrick , Schwetz Thomas , Zhou Albert 
Published: February 2022

Abstract
We evaluate the statistical significance of the 3+1 sterile-neutrino hypothesis using νe and $$ \overline{\nu} $$

ν
¯

e disappearance data from reactor, solar and gallium radioactive source experiments. Concerning the latter, we investigate the implications of the recent BEST results. For reactor data we focus on relative measurements independent of flux predictions. For the problem at hand, the usual χ2-approximation to hypothesis testing based on Wilks’ theorem has been shown in the literature to be inaccurate. We therefore present results based on Monte Carlo simulations, and find that this typically reduces the significance by roughly 1 σ with respect to the naïve expectation. We find no significant indication in favor of sterile-neutrino oscillations from reactor data. On the other hand, gallium data (dominated by the BEST result) show more than 5 σ of evidence supporting the sterile-neutrino hypothesis, favoring oscillation parameters in agreement with constraints from reactor data. This explanation is, however, in significant tension (∼ 3 σ) with solar neutrino experiments. In order to assess the robustness of the signal for gallium experiments we present a discussion of the impact of cross-section uncertainties on the results.
The force-force-correlator in hot QCD perturbatively and from the lattice
Authors: Ghiglieri Jacopo , Moore Guy D. , Schicho Philipp , Schlusser Niels 
Published: February 2022

Abstract
High-energy particles traversing a medium experience modified dispersion. In the Quark-Gluon Plasma, such dispersion affects jet propagation and transport properties and should be determined better. Above ~ 2Tc we expect strongly coupled infrared behavior and perturbative ultraviolet behavior, allowing a perturbative matching to an effective theory called EQCD, which can be studied non-perturbatively. We study the relevant non-local operator in EQCD at next-to-leading order which allows for a complete EQCD-to-lattice match and prepares the groundwork for a matching between EQCD and full QCD. Our results in EQCD show remarkable agreement between perturbation theory and the lattice in the expected regime.
Accidental symmetries in the scalar potential of the Standard Model extended with two Higgs triplets
Authors: Wang Xin , Wang Yilin , Zhou Shun 
Published: February 2022

Abstract
The extension of the Standard Model (SM) with two Higgs triplets offers an appealing way to account for both tiny Majorana neutrino masses via the type-II seesaw mechanism and the cosmological matter-antimatter asymmetry via the triplet leptogenesis. In this paper, we classify all possible accidental symmetries in the scalar potential of the two-Higgs-triplet model (2HTM). Based on the bilinear-field formalism, we show that the maximal symmetry group of the 2HTM potential is SO(4) and eight types of accidental symmetries in total can be identified. Furthermore, we examine the impact of the couplings between the SM Higgs doublet and the Higgs triplets on the accidental symmetries. The bounded-from-below conditions on the scalar potential with specific accidental symmetries are also derived. Taking the SO(4)-invariant scalar potential as an example, we investigate the vacuum structures and the scalar mass spectra of the 2HTM.