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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

Characterization of the High-Strength Mg–3Nd–0.5Zn Alloy Prepared by Thermomechanical Processing

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Acta Metallurgica Sinica(English Letters) 2019年第3期32卷 321-331页

作者： Ji■í Kub■sek Drahomír Dvorsk■ Jozef vesel■ Peter Min■rik M■ria Zemkov■ Dalibor Vojtěch Department of Metals and Corrosion Engineering Faculty of Chemical Technology University of Chemistry and Technology Prague Department of Physics of Materials Charles University

Magnesium alloys based on Nd and Zn are promising materials for both aviation industry and medical *** mechanical properties of these materials can be achieved by thermomechanical processing such as extrusion or rolling and by aging treatment, which can significantly strengthen the alloy. The question remains especially about the connection of texture strength created in the alloys based on the specific conditions of preparation. This work focuses on the Mg–3 Nd–0.5 Zn magnesium alloy prepared by hot extrusion of the as-cast state at two different temperatures combined with heat pre-treatment. Extrusion ratio of 16 and rate of 0.2 mm/s at 350 and 400 °C were selected for material preparation. The structures of prepared materials were studied by scanning electron microscopy and transmission electron microscopy. The effect of microstructure on mechanical properties was evaluated. Obtained results revealed the strong effect of thermal pre-treatment on final microstructure and mechanical properties of extruded materials. The Hall–Petch relation between grain size and tensile yield strength has been suggested in this paper based on the literature review and presented data. The observed behavior strongly supports the fact that the Hall–Petch of extruded Mg–3Nd–0.5 Zn alloys with different texture intensities cannot be clearly estimated and predicted. In addition, Hall–Petch relations presented in literature can be sufficiently obtained only for fraction of the Mg–3Nd–0.5 Zn alloys.

关键词： Mg–Nd–Zn alloys Extrusion Thermal treatment Microstructure Mechanical properties

A new species of Atelopus(Amphibia:Bufonidae)from eastern Panama

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Zoological Research 2021年第3期42卷 272-279页

作者： Milan vesely Abel Batista Department of Zoology Faculty of Natural SciencesPalacky UniversityOlomouc 77146Czech Republic Universidad Autónoma de Chiriquí Ciudad Universitaria El Cabrero DavidChiriquí427Panama Asociacion ADOPTA el Bosque Panamá Gamboa 119xPanama Fundacion Los Naturalistas DavidChiriquí426-01459Panama

A new species of the genus Atelopus,Atelopus fronterizo ***.,from eastern Panama is described herein based on molecular,morphological,and bioacoustic *** new species can be distinguished from its congeners occurring in the region by a combination of the following characters:(1)phalangeal reduction in thumb;(2)SVL(females only)(35.1-50.1;n=13),HW/SVL(0.23-0.34;n=59),EYND/HW(0.27-0.39;n=60),TIBL/SVL(0.41-0.56;n=58),and HAL/SVL(0.22-0.28;n=49);(3)dorsal color pattern with green or yellow background and extensive dark olive blotches forming transversal bands or mottling;(4)advertisement call duration 176-235 ms with 19-34 pulses,average pulse rate 131.69 pulses/s,and dominant frequency 2422.50-2606.50 *** new species is nested within the Central American clade of *** minimum Kimura‐2‐parameter(K2P)genetic divergence between Atelopus fronterizo *** its most phylogenetically similar congeners(*** and ***)is>2.6%for 16S and>4.9%for COI(Table 1).The phylogenetic relationship is strongly supported by ultrafast bootstrap values for the maximum-likelihood trees of both genetic markers(16S,96;COI,100,Figure 1A).Bayesian analysis of the concatenated sequences resulted in a tree with similar topology and high posterior probability support(0.99;Supplementary Figure S1).In addition,haplotype networks inferred from COI and 16S(Supplementary Figure S2)showed a well-separated clade containing the new species(two for COI,four for 16S).

关键词： 16S Figure eastern

Power characteristics of multiple inductively coupled RF discharges inside a metallic chamber

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Plasma Science and Technology 2022年第1期24卷 70-76页

作者： Dane LOJEN Rok ZAPLOTNIK Miran MOZETIC a.enka.vesel Gregor PRIMC Department of Surface Engineering Jozef Stefan InstituteJamova cesta 391000 LjubljanaSlovenia Jozef Stefan International Postgraduate School Jamova cesta 391000 LjubljanaSlovenia Plasmadis Ltd. Teslova ulica 301000 LjubljanaSloven

The characteristics of an innovative configuration of multiple radiofrequency(RF)coils immersed in a large metallic chamber are ***-cooled copper coils were mounted within the slits of double-walled glass tubes,which were immersed into a stainless-steel *** coils were connected in parallel to a gamma-type matching network,powered by an RF generator operating at industrial *** leads enabled optimisation of the line impedances and thus uniformly distributed RF power across the four *** from E-to H-mode and vice versa were measured for all coils at various oxygen pressures between 5 and 25 Pa.A uniform plasma was sustained in H-mode at the absorbed power threshold,which increased monotonously with increasing pressure in the metallic *** coils exhibit the same E-to H-mode transition hysteresis and need the same amount of power for transitioning from E-to *** setup enables maintaining uniform plasma in virtually any number of coils at high power without the risk of arcing and without the dead volume typical for a classical configuration with coils mounted outside the metallic chamber.

关键词： inductively coupled plasma large-area plasma E-to H-mode transition high power

Generic Reliability Evaluation Method for Industrial Grids with Variable Frequency Drives

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Energy and Power Engineering 2013年第4期5卷 83-88页

作者： Rongrong Yu Yao Chen Jiuping Pan Richard W vesel EBoP Energy Efficiency ABB Power Generation Wickliffe USA Power Systems ABB Corporate Research Beijing China Power Technologies ABB Corporate Research Raleigh USA

The paper presents a reliability evaluation method based on fault tree analysis with set theory and minimal cut set as core algorithm, which can be used to evaluate the reliability for industrial grids with wide application of variable frequency drives. The working principle is introduced firstly, based on which the method development considering different system topology designs, backup solutions and redundancy mechanisms are analyzed in details. In the end the proposed method is applied to two cases to show the reliability performance of system with variable frequency drives. The proposed method is also suitable for analyzing the reliability performance of industrial grids with other types of power electronic converter technology.

关键词： Fault Tree Analysis Minimal Cut Set Reliability Industrial Grids Variable Frequency Drives

WEEDS AS AN INOCULUM SOURCE OF PARASITIC FUNGI FOR CULTIVATED PLANTS

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WEEDS AS AN INOCULUM SOURCE OF PARASITIC FUNGI FOR CULTIVATE...

Multiple haploids, triploids, and tetraploids found in modern-day “living fossil” Ginkgo biloba

The ⅩⅤth International Plant Protection Congress

作者： J.DRA■enka J.■OSI■ K.VRANDEèI■ Faculty of Agriculture in Osijek Trg sv.Trojstva 3 31000 Osijek Croatia Faculty of Agriculture in Osijek Trg sv.Trojstva 3 31000 Osijek Croatia Faculty of Agriculture in Osijek Trg sv.Trojstva 3 31000 Osijek Croatia

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Horticulture Research 2018年第1期5卷 190-201页

作者： PetrŠmarda Lucie Horová Ondřej Knápek Heidi Dieck Martin Dieck Katarína Ražná Pavel Hrubík Laszlo Orlóci Laszlo Papp Kristýna veselá Pavel veselý Petr Bureš Department of Botany and Zoology Masaryk UniversityKoltlářská2CZ-61137BrnoCzech Republic Herrenkamper Gärten Herrenkamp 1DE-27254SiedenburgGermany Department of Genetics and Plant Breeding Slovak University of Agriculture in NitraTr.A.Hlinku 294976NitraSlovakia Slovak University of Agriculture in Nitra Faculty of Horticulture and Landscape EngineeringDunajská1694911NitraSlovakia Botanical Garden of Eötvös University Illés utca 25BudapestHungary

Ginkgo biloba,the last extant representative of a lineage of Mesozoic gymnosperms,is one of the few seed plants with an exceptionally long(~300 Myr)evolutionary history free of genome-wide duplications(polyploidy).Despite this genome conservatism,we have recently found a viable spontaneous tetraploid Ginkgo sapling during routine screening of several plants,demonstrating that natural polyploidy is possible in *** we provide a much wider flow cytometry survey of ploidy in some European Ginkgo collections,and own seedlings(>2200 individuals and~200 cultivars).We found a surprisingly high level of ploidy variation in modern-day Ginkgo and documented altogether 13 haploid,3 triploid,and 10 tetraploid Ginkgo plants or cultivars,most of them being morphologically distinct from common *** frequently produced polyploid(dihaploid)buds or *** showed some genome size *** surveyed plants provide a unique resource for future Ginkgo research and breeding,and they might be used to accelerate the modern diversification of this nearly extinct plant lineage.

关键词： routine breeding spite

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九寨沟景区游客教育调查分析及对策

绿色科技 2016年第2期18卷 206-208页

作者：窦恩卡黄宇海南师范大学旅游学院海南海口571158

以九寨沟景区游客教育为研究对象,对九寨沟景区游客教育功能的应用现状进行了调查和分析,并提出了相应的对策,以期能加强和完善九寨沟游客教育体系。

关键词：游客教育内容教育方式实施效果差异分析

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可逆热致变色油墨的色度学特性研究

中国印刷与包装研究 2010年第3期2卷 63-68页

作者： Rahela Kular Moja Frikovec Nina Hauptman a.enka.vesel Marta Klanjek Gunde 柳玲 University of Zagreb Faculty of Graphic ArtsGetaldieva 2ZagrebCroatia Cetis Graphic and Documentation Servicesd.d.opova 24CeljeSlovenia National Institute of Chemistry LjubljanaHajdrihova 19Slovenia Institute LjubljanaJamova 39Slovenia

本文研究了活化温度为31℃的3种含隐色染料基的热致变色油墨的色度学特性。这3种油墨具有相似的颜料粒径分布和同等厚度且对氧等离子体腐蚀相对稳定的微胶囊壳。油墨颜色与温度、引起颜色滞后的样品热史两个因素有关。比较脱色和着色过... 详细信息

本文研究了活化温度为31℃的3种含隐色染料基的热致变色油墨的色度学特性。这3种油墨具有相似的颜料粒径分布和同等厚度且对氧等离子体腐蚀相对稳定的微胶囊壳。油墨颜色与温度、引起颜色滞后的样品热史两个因素有关。比较脱色和着色过程,在CIELAB色空间中所观测的滞后环面积决定了样品上色差的大小。同一样品所能达到的最大色差是由样品不同的热史和温度决定。4个特征温度描述了引起颜色滞后的2个化学反应。当冷却到低于活化温度时,脱色状态的稳定性超过10h。热致变色效应的可逆性随着最高加热温度约呈线性降低。

关键词：热致变色热致变色油墨微胶囊色度学滞后现象可逆性