bluuebunny/crossref_metadata_2025_split huggingface dataset:
Manipulation of the Magnetoresistance by Strain in Topological TaSe3
Authors: Xing Jie , Blawat Joanna , Speer Smita , Saleheen Ahmad Ikhwan Us , Singleton John , Jin Rongying 
Published: October 2022

Abstract1D TaSe3 exhibits many unusual physical properties due to its distorted type‐II chains. Ribbon‐shaped single crystals can be easily bended along the b‐axis, forming rings. This study investigates the magnetoresistance (MR) of TaSe3 up to 60 T in both unbended (ribbon shape) and ring‐shaped (bended ribbon) samples. Notable changes are found in the magnetotransport properties between the two different shaped samples. One is that the MR in ring‐shaped samples is three orders lower than that in unbended samples under the same sample environment. In addition, linear MR is observed above ≈20 T in ring‐shaped samples when the magnetic field is parallel or perpendicular to the rings. Quantum oscillations are also observed as a function of the magnetic field when the magnetic field is applied parallel to rings, possibly due to the Altshuler–Aronov–Spivak effect or the inversion of the lowest Landau level beyond the quantum limit. All these results are related to strain‐induced electronic structure change in TaSe3, an effective way to tune physical properties in low‐dimensional materials.
Dual‐terminal event‐triggered dynamic output feedback H∞ control for aero engine networked control systems with quantization
Authors: Wang Weixuan , Xie Shousheng , Peng Jingbo , Zhang Yu , Wang Hao , Zhou Bin , Wang Lei 
Published: October 2022

AbstractThis study deals with the problem of dual‐terminal event‐triggered dynamic output feedback (DOF) control for aero engine networked control systems (NCSs) subject to network‐induced delay, external disturbance, and quantization effects. First, we established a generalized mathematical model of the aero engine. Second, a dual‐terminal dynamic event‐triggered mechanism (DETM) was designed to reduce the utilization of the network bandwidth. In addition, a DOF controller with a compensation function was proposed to stabilize the system. By utilizing the Lyapunov‐Krasovskii (LK) method, the stability criteria were determined. Accordingly, the design conditions of the DOF controller and DETMs were presented. Furthermore, based on a genetic algorithm (GA), a parameter tuning method was proposed to obtain the allowable delay upper bound with less conservatism. Finally, some examples were presented to show the effectiveness and superiority of the presented scheme.
Power and energy consumption of skid‐steer rovers turning on loose soil
Authors: Fiset Jean‐Sebastien , Effati Meysam , Skonieczny Krzysztof 
Published: October 2022

AbstractThis study highlights two key phenomena affecting power and energy consumption of skid‐steer rovers on loose soil that is not present on the hard ground: soil excavation due to wheel counterrotation and impeded turning when dragging a braked wheel. Experiments in the field and in a controlled laboratory sandbox show that, on sand, power peaks by 15%–20% in a newly identified range of turns with radii between half the rover width, , to , the radius at which the inner wheel does not turn. In this range of turns, the inner wheels rotate backwards but are being dragged forward through piles of sand they excavate by counterrotation. At , turns are shown to take much longer, leading to higher total energy consumption over time. Experiments in a controlled laboratory sandbox isolate the high motor torque and the resistance force experienced when a skid‐steer rover drags a counterrotating or braked wheel, respectively, through loose soil. Other field experiments also demonstrate that paths combining circular arcs and lines can lead to energy savings of up to 15% relative to common ones consisting of point turns and lines; the experimental results suggest the circular arcs should have radii of approximately . The quantitative values presented in this paper are specific to the rover and soils tested, but there are reasons to support the overall conclusions generalizing to all skid‐steer rovers in loose soil.
Local support vector machine based dimension reduction
Authors: Li Linxi , Wang Qin , Ke Chenlu 
Published: October 2022

AbstractMotivated by several recent work that adopt support vector machines into the sufficient dimension reduction research, we propose a local support vector machine based dimension reduction approach. The proposal deals with continuous and binary responses, linear and nonlinear dimension reduction in a unified framework. The localization can also help relax the stringent probabilistic assumptions required by the global methods. Numerical experiments and a real data application demonstrate the efficacy of the proposed approach.
2.4: Influence of Screen Devices using on Myopia in Children aged 7–11 years: a Multi‐center Experimental Study
Authors: Yu Xi , Gong Ling , Wei Lili , Hyun Min Seung , Ma Lu , Peng Zisu , Wang Kai , Zhao Mingwei , Zhou Jiawei 
Published: October 2022

Purpose. To investigate the working distances when children read text with different font sizes and watched videos under different learning facilities by various devices.Methods. There were two experiments in this study. In Experiment 1, 35 children (8.97 ± 1.12 years old, 10 females) with normal or corrected‐to‐normal visual acuity (≤ 0.00 logMAR) were recruited. Subjects were asked to read a fairy tale that was shown in five different font sizes (tablet, laptop, digital book, printed book: 9, 10.5, 12, 14, and 16 pounds; cellphone: 12, 14, 16, 18, and 20 pounds) by a tablet, laptop, cellphone, digital and printed books. In Experiment 2, 10 children (8.3 ± 1.16 years old, 3 females) were asked to watch videos (online education program) using a tablet, laptop and cellphone. Throughout the experiments, Clouclip, which is a wearable and continuous rangefinder, was used to measure the working distances (the distance between the eyes of the observers and the screen).Results. In Experiment 1, the mean working distance was significantly different amongst different devices (tablet: 43.8 ± 1.8 cm; laptop: 50.4 ± 1.8 cm; cellphone: 31.8 ± 1.2 cm; digital book: 28.9 ± 1.2 cm; printed book: 37.4 ± 1.7 cm; P < 0.001). The working distance increased with larger font sizes (P < 0.001). The working distances exceeded 30 cm when children read the tale with the tablet, laptop and printed book at all font size conditions. However, the working distances were less than 30 cm when children read the tale using a digital book at all font size conditions, using cellphone under 14 pounds. In Experiment 2, the working distance was significantly different amongst different screen devices (tablet: 49.5 ± 1.8 cm; laptop: 60.6 ± 5.7 cm; cellphone: 45.3 ± 3.4 cm; P = 0.018). The working distance slightly increased within 25 minutes after subjects started watching the videos but decreased after 25 minutes of the viewing session; they were all larger than 30 cm by all screen devices.Conclusions. Children demonstrated different working distances when they read and watched video in different conditions. Closer working distances were found when the subjects used smaller screen devices with a smaller font size compared to those when the subjects used larger screen devices with a larger font size during reading; this might be a risk factor for myopia progression. Larger distances were observed in the laptop compared with that in the tablet and the cellphone when children watched videos. We also recommend that a session of watching a video to not exceed 25 minutes. Our work provides an insight about controlling for myopia by informing the working distance of children when they use various screen devices.
P‐1.6: 10000PPI Active Matrix Micro‐LED Driver Circuit Design
Authors: Li Yuxin , Chen Rui , Lv Zhijian , Liu Zhaojun 
Published: October 2022

Micro‐LED display technology is an emerging display technology. Compared with liquid crystal display technology, silicon‐based liquid crystal technology, and OLED technology, Micro‐LED display with Micro‐LED technology has the advantages of fast corresponding speed, autonomous light emission, high contrast ratio, and long service life.This paper firstly introduces the driving method of Micro‐LED display technology, then introduces the method and design of the driving circuit using active addressable silicon‐based CMOS to build a dedicated Micro‐LED display, and finally gives the simulation results of the circuit, which can finally achieve the Micro‐LED driver applicable to 1920×1080 resolution, 120Hz, 10000PPI. display driver for 1920×1080 resolution, 120Hz, 10000PPI.
P‐8.11: A Halo Optimization Idea Applied to Automotive Local Diming Display
Authors: Zhou Zheng , Deng Jiajia , Yang Delin 
Published: October 2022

As the advantages of Local Diming display technology are gradually recognized by mainstream car company customers, for it has High contrast and low power consumption features, but the halo problem that arises at this stage is also plaguing developers and end customers.This article will discuss with readers the solution to the halo from three aspects: halo evaluation and test standards, design optimization schemes and image processing methods.
Defect Engineering in A2BO4 Thin Films via Surface‐Reconstructed LaSrAlO4 Substrates
Authors: Kim Jinkwon , Kim Youngdo , Mun Junsik , Choi Woojin , Chang Yunyeong , Kim Jeong Rae , Gil Byeongjun , Lee Jong Hwa , Hahn Sungsoo , Kim Hongjoon , Chang Seo Hyoung , Lee Gun‐Do , Kim Miyoung , Kim Changyoung , Noh Tae Won 
Published: October 2022

AbstractRuddlesden–Popper oxides (A2BO4) have attracted significant attention regarding their potential application in novel electronic and energy devices. However, practical uses of A2BO4 thin films have been limited by extended defects such as out‐of‐phase boundaries (OPBs). OPBs disrupt the layered structure of A2BO4, which restricts functionality. OPBs are ubiquitous in A2BO4 thin films but inhomogeneous interfaces make them difficult to suppress. Here, OPBs in A2BO4 thin films are suppressed using a novel method to control the substrate surface termination. To demonstrate the technique, epitaxial thin films of cuprate superconductor La2‐xSrxCuO4 (x = 0.15) are grown on surface‐reconstructed LaSrAlO4 substrates, which are terminated with self‐limited perovskite double layers. To date, La2‐xSrxCuO4 thin films are grown on LaSrAlO4 substrates with mixed‐termination and exhibit multiple interfacial structures resulting in many OPBs. In contrast, La2‐xSrxCuO4 thin films grown on surface‐reconstructed LaSrAlO4 substrates energetically favor only one interfacial structure, thus inhibiting OPB formation. OPB‐suppressed La2‐xSrxCuO4 thin films exhibit significantly enhanced superconducting properties compared with OPB‐containing La2‐xSrxCuO4 thin films. Defect engineering in A2BO4 thin films will allow for the elimination of various types of defects in other complex oxides and facilitate next‐generation quantum device applications.
A comprehensive survey on online social networks security and privacy issues: Threats, machine learning‐based solutions, and open challenges
Authors: Bhattacharya Munmun , Roy Sandip , Chattopadhyay Samiran , Das Ashok Kumar , Shetty Sachin 
Published: October 2022

AbstractOver the past few years, online social networks (OSNs) have become an inseparable part of people's daily lives. Instead of being passive readers, people are now enjoying their role as content contributors. OSN has permitted its users to share their information including the multimedia content. OSN users can express themselves in virtual communities by providing their opinions and interacting with others. As a consequence, the privacy and security threats in OSNs have emerged as a major concern to the research and business world. In the recent past, a number of survey works have been conducted to discuss different security and privacy threats in OSNs. However, till date, no survey work has been conducted that aims to classify and analyze various machine learning (ML)‐based solutions adapted for the security defense of OSNs. In this survey article, we present a detailed taxonomy with a classification of various works done on various security attacks in OSNs. We then review and summarize the existing state of art survey works on OSN security, and indicate the merits and limitations of these survey works. Next, we review all recent works that aim to provide ML‐based solutions toward defense of security attacks on OSNs. Finally, we discuss the future road‐map on OSN security and provide a comprehensive analysis on the open research issues with feasible measurements and possible solutions.
An efficient procedure for online/offline ID‐based signature using extended chaotic maps and group ring
Authors: Mittal Gaurav , Kumar Sunil , Kumar Sandeep 
Published: October 2022

AbstractIn this article, we utilize the notions of extended chaotic maps and group ring to propose an efficient procedure for online/offline identity based (ID‐based) signature. The main purpose of engaging chaotic maps in our procedure is to reduce its computational complexity while maintaining the desired security and the purpose of including algebraic structure of group ring is to shorten the signature. We show that under chosen message attack, our signature procedure is secure under unforgeability of ID‐based short signature. Most of the available online/offline signature procedures allow one time use of the offline preadministered information (offline stockpiling), but the proposed procedure grants multitime usage of the offline stockpiling. Therefore, the offline preadministered information can be reused by the signer in polynomial time. We show that our signature procedure is efficient, fast and provides signature of the small size. Finally, we compare our procedure with the several existing schemes in the literature and discuss its advantages.
Insight Into Factors Governing Formation, Synthesis and Stereochemical Configuration of DNA Adducts Formed by Mitomycins
Authors: Paz Manuel M. , Champeil Elise 
Published: October 2022

AbstractMitomycin C, (MC), an antitumor drug used in the clinics, is a DNA alkylating agent. Inert in its native form, MC is reduced to reactive mitosenesin cellulowhich undergo nucleophilic attack by DNA bases to form monoadducts as well as interstrand crosslinks (ICLs). These properties constitute the molecular basis for the cytotoxic effects of the drug. The mechanism of DNA alkylation by mitomycins has been studied for the past 30 years and, until recently, the consensus was that drugs of the mitomycins family mainly target CpG sequences in DNA. However, that paradigm was recently challenged. Here, we relate the latest research on both MC and dicarbamoylmitomycin C (DMC), a synthetic derivative of MC which has been used to investigate the regioselectivity of mitomycins DNA alkylation as well as the relationship between mitomycins reductive activation pathways and DNA adducts stereochemical configuration. We also review the different synthetic routes to access mitomycins nucleoside adducts and oligonucleotides containing MC/DMC DNA adducts located at a single position. Finally, we briefly describe the DNA structural modifications induced by MC and DMC adducts and how site specifically modified oligonucleotides have been used to elucidate the role each adduct plays in the drugs cytotoxicity.
Evaluation of delaying effects of different short‐term dosage regimens of topical ciprofloxacin on corneal ulcer healing in an avian model
Authors: Tavangarrad Niloofar , Mosleh N. , Shomali Tahoora , Namazi Fatemeh , Masoudian Maliheh 
Published: October 2022

AbstractBackgroundKnowledge on possible delaying effects of topical ciprofloxacin on corneal ulcer healing is scarce in avian patients.ObjectivesThe study evaluates effects of different dosage regimens of topical ciprofloxacin on healing of corneal ulcer in an avian model.MethodsOne hundred and fifty adult layers were randomly allocated into two equal categories each consisted of 5 groups (n = 15): 1, negative control (NC, normal cornea); 2, positive control (PC) (birds with experimental corneal ulcer); and 3, 4 and 5, birds with corneal injury that received ciprofloxacin 0.3% topically q6h, q8h and q12h, respectively for 3 (category 1) or 5 days (category 2). Corneas were excised for histopathological evaluation and determination of MMP‐9 expression.ResultsWhile no significant difference was observed in daily‐measured fluorescein‐stained ulcer size among ciprofloxacin‐treated birds and PC group in category 1, birds in PC group of category 2 had significantly smaller ulcers as compared to antibiotic‐treated birds at the end of experiment (p < 0.01 for all cases). Histopathological evaluations at the end of the experiment showed no significant difference among PC and ciprofloxacin‐treated birds of both categories for almost all of the assayed parameters. Over expression of MMP‐9 mRNA was observed in PC group after 3 and 5 days of ulcer induction compared to NC groups. Its expression in ciprofloxacin‐treated birds of both categories remained close to PC groups.ConclusionsWhile ciprofloxacin administration for 3 days does not affect ulcer healing, it delays healing process at the end of 5 days of treatments in an avian model of corneal ulcer injury. This delaying effect is not associated with a drastic change in MMP‐9 expression.
Biopolymers as alternatives to synthetic polymers in flame‐retarded polymeric composites: A study of fire and mechanical behaviors
Authors: Teles Fernando , Antunes Filipe 
Published: October 2022

AbstractThe impact of polymeric materials on the environment is a growing concern and an incentive for their commercial appeal. In composites, the trend is to replace matrices of synthetic polymers (SPs) with biopolymers (BPs) to develop bio‐based composites. The increasing demand for such materials has driven their research and application in many industrial sectors, often accompanied by increasingly restrictive fire safety regulations. With the aim of decreasing the flammability of composites, various approaches have been pursued, in particular the use of flame‐retardant (FR) additives. However, at high FR loads, the mechanical properties can be compromised. This article briefly overviews some aspects of the fire behavior and mechanical properties of BPs and bio‐based composites. Using a chart‐based framework and quadrant‐based quantitative analysis, the fire and mechanical properties of flame‐retarded composite formulations are evaluated simultaneously, aimed at comparing the effects of BPs and SPs in flame‐retarded polymeric composites in relation with other variables.
Modeling the growth of diverse microorganisms during feast‐famine enrichment
Authors: Amer Abdelrahman , Kim Younggy 
Published: October 2022

AbstractPolyhydroxyalkanoates (PHAs) are biodegradable polymers that can decrease the severe environmental pollution of petroleum plastics. PHA production by mixed microbial communities has been extensively studied to lower the high PHA prices. However, the competition between distinct microbial communities during the enrichment of PHA accumulators in mixed cultures has not been widely investigated. Thus, in this work, we developed a mathematical model for the competition between PHA accumulators and non‐PHA accumulators in the feast‐famine enrichment strategy. The developed model successfully simulated published lab‐scale experimental data for Plasticicumulans acidivorans, a well‐studied PHA accumulator that can store PHA up to 90% of the cell weight. The growth kinetics for both PHA and non‐PHA accumulators were estimated and compared to the values in the literature. The uncertainties in the model kinetics were studied by expanding the model to include additional sub‐biomass components for each heterotrophic group. As a result, the microbial diversity of microbial communities was observed to influence the enrichment of PHA accumulators in mixed cultures. Additionally, the calibrated model was applied to investigate the cultivation conditions, such as cycle lengths, carbon‐to‐nitrogen ratio, and solids retention time for successful P. acidivorans enrichment in mixed cultures. The developed model can be applied to control the cultivation and enrichment of PHA accumulators in large‐scale PHA production systems.Practitioner Points

A new model for the enrichment of PHA accumulators was developed.
The model can simulate PHA accumulation by enriched cultures.
The model was calibrated and validated for Plasticicumulans acidivorans.
The impact of microbial diversity on enriching PHA accumulators was investigated.
Short cycles (<12 h) and SRT (<10 d) are suggested for successful enrichment.
Dependence of the Electronic Structure of β‐Si6−zAlzOzN8−z on the (Al,O) Concentration z and on the Temperature
Authors: Khan Saleem Ayaz , Šipr Ondřej , Vackář Jiří , Minár Ján 
Published: October 2022

Abstractβ‐Si6−zAlzOzN8−z is a prominent example of systems suitable as hosts for creating materials for light‐emitting diodes (LEDs). In this work, the electronic structure of a series of semiordered and disordered β‐Si6−zAlzOzN8−z systems is investigated by means of ab initio calculations, using the FLAPW and Green function KKR methods. Finite temperature effects are included by averaging over thermodynamic configurations within the alloy analogy model. We found that the dependence of the electronic structure on the (Al,O) concentration z is similar for semiordered and disordered structures. The electronic band gap decreases with increasing z by about 1.5 eV when going from z=0 to z=2. States at the top of the valence band are mostly associated with N atoms whereas the states at the bottom of the conduction band are mostly derived from O atoms. Increasing the temperature leads to a shift of the bottom of the conduction band to lower energies. The amount of this shift increases with increasing z.
Classification, Distribution, and Biodiversity of Terrestrial Ecosystems in the Gulf of Guinea Oceanic Islands
Authors: Dauby Gilles , Stévart Tariq , Barberá Patricia , Benitez Laura , do Céu Madureira Maria , Soares Filipa C. , Viennois Gaëlle , de Lima Ricardo F. 
Published: October 2022

AbstractThe oceanic islands of the Gulf of Guinea display a large diversity of environmental conditions and biological communities, whose interactions have contributed to the development of a great variety of ecosystems, from mangroves to montane grasslands. Human activities have extensively and profoundly altered many of these natural ecosystems over the past five centuries. We review key studies to propose an updated classification map of terrestrial ecosystems, taking advantage of up-to-date spatial information on abiotic gradients and biological distributions. To guide future research and conservation programs, we highlight challenges and pending questions regarding our understanding of the structure, integrity, and dynamics of terrestrial ecosystems in these islands.
When Regulatory Power and Industrial Ambitions Collide: The “Brussels Effect,” Lead Markets, and the GDPR
Authors: Martin Nicholas , Ebbers Frank 
Published: October 2022

AbstractThis chapter explores certain innovation-promoting effects of the GDPR and their geographical dispersion. It also shows that while the GDPR has sparked substantial innovation and the birth of a new industry in the field of “privacy tech,” or technological solutions for data protection compliance, this industry is largely dominated by North America-based companies. Despite the GDPR’s origin in Europe – and despite the hopes of European policymakers that it might spark a wave of new technology innovation in Europe – European companies seem to have struggled to establish themselves in this market. The chapter draws on two concepts from regulatory studies and innovation studies – the “Brussels effect” and regulation-induced lead markets – to explain this outcome, arguing that this surprising outcome (a European law sparking the birth of a new technology industry in America) derives not from idiosyncratic factors connected to the GDPR or even software industries, but from structural factors related to the logic of regulatory globalization.