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Instance Segmentation of Characters Recognized in Palmyrene Aramaic Inscriptions

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Computer Modeling in engineering & Sciences 2024年第9期140卷 2869-2889页

作者： Adéla Hamplová Alexey Lyavdansky tomášNovák Ondrej Svojše David Franc Arnošt Veselý Czech University of Life Sciences in Prague(CULS) Faculty of Economics and ManagementDepartment of Information EngineeringPrague16500Czech Republic National Research University Higher School of economics(HSe) Faculty of HumanitiesInstitute for Oriental and Classical StudiesMoscow101000The Russian Federation

This study presents a single-class and multi-class instance segmentation approach applied to ancient Palmyrene inscriptions,employing two state-of-the-art deep learning algorithms,namely YOLOv8 and Roboflow *** goal is to contribute to the preservation and understanding of historical texts,showcasing the potential of modern deep learning methods in archaeological *** research culminates in several key findings and scientific *** comprehensively compare the performance of YOLOv8 and Roboflow 3.0 in the context of Palmyrene character segmentation—this comparative analysis mainly focuses on the strengths and weaknesses of each algorithm in this *** also created and annotated an extensive dataset of Palmyrene inscriptions,a crucial resource for further research in the *** dataset serves for training and evaluating the segmentation *** employ comparative evaluation metrics to quantitatively assess the segmentation results,ensuring the reliability and reproducibility of our findings and we present custom visualization tools for predicted segmentation *** study advances the state of the art in semi-automatic reading of Palmyrene inscriptions and establishes a benchmark for future *** availability of the Palmyrene dataset and the insights into algorithm performance contribute to the broader understanding of historical text analysis.

关键词： Optical character recognition instance segmentation Palmyrene ancient languages computer vision

Analytical and technological aspects of amylose inclusion complexes for potential applications in functional foods

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Food Bioscience 2022年第3期47卷 17-31页

作者： Andrea e.Di Marco Vanesa Y.Ixtaina Mabel C.tomás Centro de Investigación y Desarrollo en Criotecnología de Alimentos CIDCA CCT La Plata CONICETFacultad de Ciencias Exactas FCE-UNLPCICPBAcalle 47 y 1161900La PlataArgentina Facultad de Ciencias Agrarias y Forestales FCAyF-UNLP calle 60 y 1191900La PlataArgentina

The linear component of starch,amylose,has the ability to interact with hydrophobic molecules forming inclusion complexes(ICs).These structures have gained a particular interest for potential food applications,either as dietary fiber or as delivery systems of bioactive *** the second case,the complexation of sensitive molecules is directed to protect them from processing,storage and stomach conditions and to guarantee a sustained release in the gastrointestinal *** present review covers the analytical and technological aspects of inclusion complexes,with focus on their potential application in the development of functional *** was addressed by first explaining the methodologies used for the analytical assessment of their structural,thermal,and functional properties,followed by the study of the functionality of ICs as carrier agents of different bioactive compounds and food ingredients,including alpha-lipoic acid,α-linolenic and linoleic fatty acids,conjugated linoleic acid,ascorbyl palmitate,phenolic compounds,and *** also covers the application of ICs in food products and the analysis of the potential industrial scalability of the formation *** analytical methodologies allowed a complete characterization of the *** structures have shown suitable functional properties as delivery systems of the bioactive compounds and flavors covered in this *** incorporation of ICs in food has led to the development of products with improved nutritional and/or functional *** successful formation of complexes using methods suitable for an industrial scale represents promising preliminary results to achieve the scalability of the ICs production in the near future.

关键词： Amylose inclusion complex Delivery system Bioactive compound V-type structure

Dyadic Green Function for an electromagnetic Medium Inspired by General Relativity

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Chinese Physics Letters 2006年第4期23卷 832-833页

作者： Akhlesh Lakhtakia tom G. Mackay CATMAS Department of Engineering Science and Mechanics Pennsylvania State University University Park PA 16802-6812 USA School of Mathematics University of Edinburgh Edinburgh EH9 3JZ United Kingdom

The dyadic Green function for a homogeneous electromagnetic medium inspired by the spatiotemporally nonhomogeneous constitutive equations of gravitationally affected vacuum is derived.

关键词： FIeLDS

Uncertainty quantification of stability and damage detection parameters of coupled hydrodynamic-ground motion in concrete gravity dams

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Frontiers of Structural and Civil engineering 2019年第2期13卷 303-323页

作者： Nazim Abdul NARIMAN tom LAHMeR Pevman KARAMPOUR Institute of Structural Mechanics Faculty of Civil EngineeringBauh aus Universitat Weimar99423 WeimarGermany Department of Mechanical engineering Faculty of EngineeringArak UniversityArak 38156-8-8849Iran

In this paper, models of the global system of the Koyna dam have been created using ABAQUS software considering the dam-reservoir-fbundation interaction. Non coupled models and the coupled models were compared regarding the horizontal displacement of the dam crest and the differential settlement of the dam base in clay foundation. Meta models were constructed and uncertainty quantification process was adopted by the support of Sobol's sensitivity in dices considering five un certain parameters by exploiting Box-Behnken experimental method. The non coupled models results determined overestimated predicted stability and damage detection in the dam. The rational effects of the reservoir height were very sensitive in the variation of the horizontal displacement of the dam crest with a small interaction effect with the beta viscous damping coefficient of the clay fbundation. The modulus of elasticity of the clay foundation was the decisive parameter regarding the variation of the differential settlement of the dam base. The xFeM approach has been used for damage detection in relation with both minimum and maximum values of each uncertain parameter. Finally the effects of clay and rock foundations were determined regarding the resistance against the propagation of cracks in the dam, where the rock fbundation was the best.

关键词： massed foundation hydrodynamic pressure Box-Behnken method meta model Sobol's sensitivity indices

Monolayer MoS_(2)synaptic devices synergistically modulated by Na^(+)ions and sulfur vacancies for neuromorphic computing and pain perception stimulation

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Journal of Materials Science & Technology 2023年第32期163卷 121-131页

作者： Y.B.Liu D.Cai T.C.Zhao M.Shen x.Zhou Z.H.Zhang x.W.Meng D.e.Gu State Key Laboratory of electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054China College of Chemistry and Materials Science Sichuan Normal UniversityChengdu 610066China Laboratory of Controllable Preparation and Application of Nanomaterials Chinese Academy of SciencesBeijing 100190China

Ion based synaptic devices(ISDs)are one of the excellent candidates for neuromorphic ***,most of ISDs utilized additional ion sources to supply ions for adjusting the conductance of the device channel,which might hinder the large-scale integration for fabricating hierarchical artificial neural *** a high-performance monolayer MoS_(2) ISD is demonstrated using Na^(+)ions doped in MoS_(2) lattice as ion *** from the Na^(+)ions and S vacancy defects in the MoS_(2) lattice,the device not only exhibits various synaptic plasticity(long-and short-term plasticity)and typical biological features(pain-perceptual nociceptors and associative learning),but also has a low synaptic event response voltage(100 mV)and a low energy consumption(0.92 pJ)for a synaptic event.A dissociation-adsorptionmigration-binding model is proposed to elaborate the resistance switching mechanism,which is corroborated by density functional theory calculations and *** addition,an artificial neural network(ANN)based on MoS_(2) ISDs is simulated for the recognition of the MNIST handwritten *** deviation of the recognition accuracy is less than 8%compared to the ideal floating-point numeric *** results provide a new strategy for fabricating high-performance ISDs for neuromorphic computing.

关键词： 2D materials Monolayer Molybdenum disulfide Synapses Neuromorphic computing

experimental Investigation of effects of Reynolds Number and Incidence Angle on Secondary Flow within a Linear Blade Cascade

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Journal of Thermal Science 2021年第6期30卷 2122-2136页

作者： FLÍDR erik JeLÍNeK tomáš KLADRUBSKÝMilan Laboratory of High Speed Aerodynamics Czech Aerospace Research CenterBeranovych 130Prague 19905Czech Republic

The kinetic energy loss and the secondary loss downstream of a high turning nozzle cascade were *** of the incidence angle(i=-25°,0°and 25°)and Reynolds number(Re_(2,is)=0.8×10^(5),1.2×10^(5),2.5×10^(5) and 4.5×10^(5))were studied on two cascade configurations defined by different pitch to chord ratio(t/c=0.6 and 0.9),*** at the cascade inlet were performed by means of Preston tube,while at the cascade outlet by means of miniature pyramid five-hole pressure *** effect of studied parameters on the flow field at the cascade outlet was shown by the distribution of the kinetic energy loss,secondary loss,mix-out loss and streamwise vorticity.

关键词： linear blade cascade secondary loss pressure measurement

Cost implications of increased solar penetration and time-of-use rate interactions

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Clean energy 2020年第3期4卷 247-269页

作者： Dominique Bain tom Acker School of earth Sciences and environmental Sustainability Northern Arizona UniversityFlagstaffAZ 86011 Mechanical engineering Northern Arizona UniversityFlagstaffAZ 86011

electricity-grid operators are facing new challenges in matching load and generation due to increased solar generation and peak-load *** paper demonstrates that time-of-use(TOU)rates are an effective method to address these *** rates use price differences to incentivize conserving electricity during peak hours and encouraging use during off-peak *** strategy is being used across the USA,including in Arizona,California and *** analysis used the production-cost model PLexOS with an hourly resolution to explore how production costs,locational marginal prices and dispatch stacks(type of generation used to meet load)change due to changes in load shapes prompted by TOU rates and with additional solar *** modelling focused on implementing TOU rates at three different adoption(response)levels with and without additional solar generation in the Arizona balancing areas within a PLexOS *** most cases analysed,implementing TOU rates in Arizona reduced reserve shortages in the Western Interconnect and,in some cases,very *** result is representative of the interactions that happen interconnection-wide,demonstrating the advantage of modelling the entire *** costs were decreased by the additional solar generation and the load change from TOU rates,and high response levels reduced the production costs the most for high-solar-generation *** change from TOU rates decreased locational marginal prices for a typical summer day but had inconsistent results on a high-load *** solar generation decreased the usage of combustion turbines,combined cycles and coal-fired generation.

关键词： energy system and policy production-cost model PLexOS time-of-use rates solar energy locational marginal price

Self-replicating digital data storage with synthetic chromosomes

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National Science Review 2021年第7期8卷 66-67页

作者： xinyu Lu tom ellis Imperial College Centre for Synthetic Biology Imperial College London Department of Bioengineering Imperial College London Wellcome Trust Sanger Institute

With the rapid development of the Internet and computational technologies, the exponential growth of digital data is beginning to overwhelm existing storage device capacities, driving an unprecedented demand for new data storage media. DNA, a natural genetic information storage system, has been proposed as a promising alternative[1]. Compared with traditional siliconbased storage, DNA-based storage hasmany advantages—incredible density,

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Biodegradable PMMA coated Zn–Mg alloy with bimodal grain structure for orthopedic applications-A promising alternative

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Bioactive Materials 2024年第9期39卷 479-491页

作者： Alia ADiaa Nahed el-Mahallawy Madiha Shoeib Flavien Mouillard tom Fert′e Patrick Masson Adele Carrad`o Design and Production engineering Department Faculty of EngineeringAin Shams UniversityCairo11517Egypt Department of Design and Production engineering Faculty of Engineering and Materials ScienceGerman University in CairoCairo11835Egypt Central Metallurgical Research and Development Institute El TebbinCairo11722Egypt Institut de Physique et Chimie des Mat′eriaux de Strasbourg IPCMSUMR 7504 CNRSUniversit′e de Strasbourg67000StrasbourgFrance

The study examines the impact of microstructure and polymethyl methacrylate (PMMA) grafting on the degradability of Zn–Mg alloys. The mechanical properties ofa Zn alloy containing 0.68 wt% Mg and extruded at 200 ◦C are enhanced for degradable load-bearing applications, addressing a crucial need in the field. The materialexhibits a bimodal grain size distribution that is random texture, consisting of secondary phases, grains, and sub-grains. With an elongation to failure of 16 %, theyield and ultimate tensile strengths are 325.9 and 414.5 MPa, respectively, and the compressive yield strength is 450.5 *** “grafting-from” method was used to coat a few micrometers thick of PMMA on both bulk and scaffold Zn alloys to mitigate the corrosion rate. The last one is aporous structure, with a porosity of 65.8 %, considered as in the first approach of an orthopedic implant. After being immersed for 720 h, the PMMA-grafted bulkalloy’s corrosion rate decreased from 0.43 to 0.25 mm/y. Similarly, the scaffold alloy’s corrosion rate reduced from 1.24 to 0.49 mm/y. These results indicate that themethod employed could be used for future orthopedic applications.

关键词： alloy corrosion grain