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Geological and Morphological Features of the Karap?nar Sinkholes(Konya,Central Anatolia,Türkiye)

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Journal of earth Science 2024年第5期35卷 1654-1668页

作者： Yasar eren Seyda Parlar Berkant Coskuner Sükrü Arslan Department of Geological engineering Faculty of Engineering and Natural SciencesKonya Technical UniversityKonya 42250Turkiye Prime Ministry Disaster and emergency Mana.ement Authority Konya Provincial Directorate of Disaster and EmergencySelcuklu/Konya42100Turkiye

Karapınar region(Konya,Türkiye)is one of the important regions of the world in terms of sinkhole *** research aimed to map the sinkholes in detail,to determine their spatial distribution and geometrical *** this purpose,the long a.es,short a.es,depths and the proximity to settlements of the sinkholes were measured and their circumferences and a.eas were *** the studies,the relationship of the sinkholes with lithology,their cross sections,sha.es and the rela.ed structures were determined and the sinkholes were divided into five main groups as following:Ba.ement rock sinkholes,Obruk Pla.eau sinkholes,Seyithacı sinkholes,Siyeklik sinkholes and Basin *** d/l ratios of each sinkhole group were separa.ely determined and ***,most of the d/l ratios a.e smaller than ***,the long a.es a.e higher than the depth and it indica.es that the shallow and wide sinkholes a.e common in the *** has been determined that the fracture systems in the region,as well as the lithology and groundwa.er factors,a.e quite effective in the formation and distribution of the sinkholes in the Karapınar *** the distance of the sinkholes to the settlements,Seyithac?sinkholes a.e the most risky group in the region because they a.e deep and close to the settlements.

关键词： Karapinar Sinkhole Turkiye Central Anatolia Obruk Pla.eau hydrogeology

Comparative analysis of microstructure,mechanical,and corrosion properties of biodegradable Mg-3Y alloy prepa.ed by selective la.er melting and spark plasma sintering

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Journal of Magnesium and Alloys 2024年第4期12卷 1496-1510页

作者： P.Minárik M.Zemková S.Ša.ek J.Dittrich M.Kna.ek F.Lukáˇc D.Koutný J.Jaroš R.král Faculty of Mathematics and Physics Charles UniversityKe Karlovu 5Praha 12116Czech Republic Research Centre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Institute of Plasma Physics of the Czech Aca.emy of Sciences Za Slovankou 1782/318200 Praha 8Czech Republic Institute of Machine and Industrial Design Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This work explored possibilities of biodegradable magnesium alloy Mg-3Y preparation by two modern powder metallurgy techniques–spark plasma sintering(SPS)and selective la.er melting(SLM).The powder ma.erial was consolida.ed by both methods utilising optimised para.eters,which led to very low porosity(∼0.3%)in the SLM ma.erial and unmeasurably low porosity in the SPS *** main aim of the study was the thorough microstructure characterisation and interrelation between the microstructure and the functional properties,such as mechanical strength,deformability,and corrosion *** ma.erials showed comparable strength of∼110 MPa in tension and compression and relatively good deformability of∼9%and∼21%for the SLM and SPS ma.erials,*** corrosion resistance of the SPS ma.erial in 0.1 M NaCl solution was superior to the SLM one and comparable to the conventional extruded *** digital ima.e correlation during loading and the cross-section analysis of the corrosion la.ers revea.ed that the residual porosity and large strained grains ha.e the dominant negative effect on the functional properties of the SLM *** the other hand,one of the primary outcomes of this study is that the SPS consolidation method is very effective in the preparation of the W3 biodegradable alloy,resulting in ma.erial with convenient mechanical and degradation properties that might find practical applications.

关键词： Magnesium Yttrium Powder metallurgy Microstructure Mechanical strength Corrosion resistance

Simplified seismic scenario analysis of existing masonry buildings accounting for local site effects

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Frontiers of Structural and Civil engineering 2024年第2期18卷 309-318页

作者： Ayşe e.ÖZSOYÖZBAY Işıl SANRI KARAPINAR Zehra N.KUTLU İsmail e.KILIÇ Department of Civil engineering Maltepe UniversityIstanbul 34857Turkey School of engineering and Construction Oryx Universal CollegeDoha 12253Qatar

This study discusses the effects of local sites and hazard amplification on the seismic vulnerability assessment of existing masonry *** this context,a rapid seismic evaluation procedure was implemented on an old masonry building stock in the historical center Galata,loca.ed inİstanbul,to determine the seismic risk priority of the built *** scenarios were genera.ed for all soil classes,different moment magnitudes,and source-to-site distances to obtain more accura.e results for the seismic vulnerability assessment of the studied building ***,dama.e distributions estima.ed under nine different scenarios with/without site effects were compa.ed and illustra.ed in maps to discuss changes in vulnerability owing to amplification *** this study,by re-examining the rapid seismic evaluation procedure by including geo-hazard-ba.ed assessment,the importance of site effects on the vulnerability and risk assessment of built herita.e was *** proposed fra.ework integrating field data and local site effects is believed to advance the current applications for vulnerability assessment of masonry buildings and provide an improvement in the application of rapid seismic assessment procedures with more reliable results.

关键词： masonry buildings seismic vulnerability assessment cultural herita.e local site effect

Subpopulations of regulatory T cells a.e associa.ed with subclinical atherosclerotic plaques,levels of LDL,and cardiorespiratory fitness in the elderly

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Journal of Sport and Health Science 2024年第3期13卷 288-296,I0002页

作者： Tim Böttrich Pascal Ba.er Vincent Gröβer Magda.ena Huber Hartmann Raifer Torsten Frech Svenja Nolte Theresa Dombrowski Franz Cemic Natascha Sommer Robert Ringseis Klaus eder Karsten krüger Christopher Weyh Department of exercise Physiology and Sports Therapy Institute of Sports ScienceJustus-Liebig-UniversityGiessen 35394Germany Department of Cardiology and Angiology Justus-Liebig-University GiessenGiessen 35392Germany Institute for Systems Immunology Center for Tumor und ImmunologyMarburg 35032Germany TH Mittelhessen Department of Computer ScienceUniversity of Applied Sciences GiessenGiessen 35390Germany Department of Internal Medicine Universities of Giessen and Marburg Lung Center(UGMLC)Member of the German Center for Lung Research(DZL)Giessen 35394Germany excellence Cluster Cardio-Pulmonary Institute(CPI) Justus-Liebig UniversityGiessen 35394Germany Institute of Animal Nutrition and Nutrition Physiology Justus-Liebig-University GiessenGiessen 35390Germany

Background:Atherosclerosis forms the pathological basis for the development of cardiovascular *** pathological processes initially develop without clinically relevant symptoms,the identification of early markers in the subclinical sta.e plays an important role for initiating early *** is evidence that regulatory T cells(Tregs)a.e involved in the development of ***,the present study aimed to identify and investiga.e associations with Tregs and their subsets in a cohort of healthy elderly individuals with and without subclinical atherosclerotic plaques(SAP).In addition,various lifestyle and risk factors,such as cardiorespiratory fitness,were investiga.ed as associa.ed ***:A cross-sectional study was performed in 79 participants(ma.e:n=50;a.e=63.6±3.7 years;body mass index=24.9±3.1 kg/m2;mean±SD)who had no previous diagnosis of chronic disea.e and were not taking *** of the carotids to identify SAP,cardiovascular function measurement for vascular assessment and a cardiorespiratory fitness test to determine peak oxygen upta.e were ***,tests were conducted to assess blood lipids and determine glucose *** of Tregs and their subtypes(resting(rTregs)and effector/memory(mTregs))was performed by 8-cha.el flow *** were ca.egorized according to atherosclerotic plaque *** and logistic regression models were used to analyze associations between ***:SAP was detected in a total of 29 *** participants with plaque were older(64.8±3.6 years vs.62.9±3.5 years)and had higher peripheral systolic blood pressure(133.8±14.7 mmHg vs.125.8±10.9 mmHg).The participants with SAP were characterized by a lower percenta.e of rTregs(28.8%±10.7%vs.34.6%±10.7%)and a higher percenta.e of mTregs(40.3%±14.7%vs.30.0%±11.9%).Multiple logistic regression identified a.e(odds ratio(OR)=1.20(95%confidence interval(95%CI):1.011.42))and

关键词： Cardiorespiratory fitness elderly Regulatory T cells Subclinical atherosclerosis

CLASSIFICATIONS OF DUPIN HYPeRSURFa.eS IN LIe SPHeRe GeOMeTRY

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Acta Mathematica Scientia 2024年第1期44卷 1-36页

作者： Thomas e.CeCIL Department of Mathematics and Computer Science College of the Holy CrossWorcesterMA01610USA

This is a survey of local and global classification results concerning Dupin hypersurfa.es in S^(n)(or R^(n))that ha.e been obtained in the context of Lie sphere *** emphasis is on results that rela.e Dupin hypersurfa.es to isopara.etric hypersurfa.es in *** with these classification results,many important concepts from Lie sphere geometry,such as curvature spheres,Lie curvatures,and Legendre lifts of submanifolds of S^(n)(or R^(n)),a.e described in *** pa.er also contains several important constructions of Dupin hypersurfa.es with certain special properties.

关键词： Dupin hypersurfa.es isopara.etric hypersurfa.es Lie sphere geometry Lie sphere transformations Lie curvatures

Investigating the impact of the universal function of the nuclear proximity potential in heavy-ion fusion cross sections

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Communications in Theoretical Physics 2024年第5期76卷 86-93页

作者： R Gharaei e Sarvari Department of Physics Sciences FacultyHakim Sabzevari UniversityPO Box 397SabzevarIran Department of Physics Faculty of ScienceFerdowsi University of MashhadPO Box 91775-1436MashhadIran Science Faculty Department of PhysicsTarbiat Modares UniversityTehranIran

The fusion barriers and cross sections of 15 colliding systems with 320≤Z_(1)Z_(2)≤1512 a.e investiga.ed in detail to understand the influence of the universal function of proximity potential formalism in the heavy-ion fusion *** realize this goal,we select three versions of the phenomenological proximity potentials,including Prox.77,Zhang 2013,and Guo 2013,to calcula.e the nucleus-nucleus *** experimental fusion cross sections for the selected reactions a.e analyzed using the standard coupled-channel calculations,including couplings to the low-lying 2^(+)and 3^(-)sta.es in the target and *** calcula.ed results show that the universal functions of the Guo 2013 and Prox.77 models provide the lowest and highest fusion barriers,*** addition,it is found that the height of the fusion barriers is enhanced by increasing the mass number of the projectile from light to heavy *** highest sensitivity to the mass number of the projectile belongs to the results of Prox.77.A discussion is also presented on the influence of the universal function on the radial behavior of the interaction potential in the allowed region for overlapping *** results reveal that the best fit to the experimental data of the fusion cross sections for the reactions involving light and medium nuclei is obtained using the universal function of the Zhang 2013 *** the heavier systems,the results of the Guo 2013 model at sub-barrier energies provide a good description of the available data.

关键词： fusion reactions proximity-type potentials universal function coupled-channel calculations

a.e hydrides under high-pressure-high-temperature superconductors?

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National Science Review 2024年第7期11卷 9-12页

作者： J.e.Hirsch Department of Physics University of California

Contrary to the current consensus, I argue that the existing evidence for high-temperature superconductivity in hydrides under high pressure is not compelling. I suggest that the focus of the field should urgently shift to establish unequivocally experimentally whether or not superconductivity in pressurized hydrides exists, instead of continuing to search for new ma.erials that might show elusive signals of unproven superconductivity at ever higher temperatures. The implications of a negative finding for the theoretical understanding of superconductivity a.e discussed.

关键词： Hydrides

FSCIL-eACA: Few-Shot Class-Incremental Learning Network Ba.ed on embedding Augmentation and Classifier Adaptation for Ima.e Classification

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Chinese Journal of electronics 2024年第1期33卷 139-152页

作者： Ruru ZHANG Haihong e Meina SONG School of Computer Science Beijing University of Posts and Telecommunications education Department Information Network engineering Research Center Beijing University of Posts and Telecommunications

The ability to learn incrementally is critical to the long-term operation of AI systems. Benefiting from the power of few-shot class-incremental learning(FSCIL), deep learning models can continuously recognize new classes with only a few samples. The difficulty is that limited instances of new classes will lead to overfitting and exa.erba.e the catastrophic forgetting of the old classes. Most previous works allevia.e the above problems by imposing strong constraints on the model structure or para.eters, but ignoring embedding network transferability and classifier adaptation(CA), failing to guarantee the efficient utilization of visual features and establishing relationships between old and new classes. In this pa.er, we propose a simple and novel approach from two perspectives: embedding bias and classifier bias. The method learns an embedding augmented(eA) network with cross-class transfer and class-specific discriminative abilities ba.ed on self-supervised learning and modula.ed attention to allevia.e embedding bias. Ba.ed on the adaptive incremental classifier learning scheme to realize incremental learning capability,guiding the adaptive upda.e of prototypes and feature embeddings to allevia.e classifier bias. We conduct extensive experiments on two popular natural ima.e data.ets and two medical data.ets. The experiments show that our method is significantly better than the ba.eline and achieves sta.e-of-the-art results.

关键词： Training Adaptation models Visualization Ima.e recognition Prototypes Self-supervised learning Power capacitors

The effect of the concentration of plastic waste on the formation of reaction products of the Ti–PeT system

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Green Chemical engineering 2024年第3期5卷 374-382页

作者： a.eksey e.Matveev Tomsk Scientific Center of the Siberian Branch of the Russian Aca.emy of Sciences

The pa.er presents research results of the synthesis, pha.e composition, and structure of products obtained by highly exothermic reactions between Ti and C10H8O4mixture components, depending on the plastic waste concentration and Ti powder dispersiveness, density of initial samples, and synthesis medium. The dependence of the pha.e composition and structure of the synthesis products on the concentration of the polymer（plastic）component in the initial Ti-PeT(C10H8O4) system was found. When the plastic waste content is 20 wt% to 25 wt%, synthesis products contain TiC0.5O0.5–TiC0.6–0.75particle agglomera.es. Further growth in the polyethylene terephthala.e content from 30 wt% to 45 wt% leads to the formation of synthesis products consisting of titanium carbide(TiC0.6–1.0). The ga.eous byproduct composition of the exothermic reaction is investiga.ed for the Ti–-C10H8O4mixture composition. It is found that the ga.eous by-product mostly contains hydrogen and carbon monoxide as well as impurities of different hydrocarbons（metha.e, a.etylene, etha.e, ethene） and carbon dioxide. The maximum adiabatic temperature of the gas combustion temperature is 2080℃, which demonstra.es the possibility of using gas as a fuel for energy generation devices. Ba.ed on the data obtained, it is possible to crea.e a basis for a new plastic waste technology to fabrica.e carbide-containing ma.erials.

关键词： Plastic waste Titanium carbide Green technology Hydrogen synthesis