检索结果-南通市图书馆

symmetric carbon tetramers forming spin qubits in hexagonal boron nitride

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

npj Computational Materials 2023年第1期9卷 407-416页

作者： Zsolt Benedek Rohit Babar Ádám Ganyecz Tibor szilvási Örs Legeza Gergely Barcza Viktor Ivády strongly Correlated systems Lendület Research Group Wigner Research Centre for PhysicsPO Box 49H-1525 BudapestHungary MTA-eLTe Lendület“Momentum”NewQubit Research Group Pázmány PéterSétány 1/A1117 BudapestHungary Department of Chemical and Biological engineering The University of AlabamaTuscaloosaAL 35487USA Institute for Advanced study Technical University of MunichLichtenbergstrasse 2a85748 GarchingGermany Department of Physics of Complex systems Eötvös Loránd UniversityEgyetem tér 1-3H-1053 BudapestHungary Department of Physics Chemistry and BiologyLinköping UniversitySE-58183 LinköpingSweden

Point defect quantum bits in semiconductors have the potential to revolutionize sensing at atomic ***,vacancy-related defects are at the forefront of high spatial resolution and low-dimensional *** the other hand,it is expected that impurity-related defect structures may give rise to new features that could further advance quantum sensing in low ***,we study the symmetric carbon tetramer clusters in hexagonal boron nitride and propose them as spin qubits for *** utilize periodic-DFT and quantum chemistry approaches to reliably and accurately predict the electronic,optical,and spin properties of the studied *** show that the nitrogen-centered symmetric carbon tetramer gives rise to spin state-dependent optical signals with strain-sensitive intersystem crossing ***,the weak hyperfine coupling of the defect to their spin environments results in a reduced electron spin resonance linewidth that can enhance sensitivity.

关键词： hexagonal boron quantum

中国少数民族语言新闻传播学研究现状评述——以藏语言新闻传播硕士学位论文为例

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

西藏大学学报（藏文版） 2024年第2期 148-160,195页

作者：达娃次仁加永卓嘎西藏大学文学院 Xizang Radio And tv station Lhasa850000

在新形势下,我国少数民族新闻传播事业取得了长足发展,少数民族新闻学的研究成果与队伍建设,为少数民族新闻传播学成为新闻学与传播学的分支学科提供了坚实的基础。文章以藏语言新闻传播硕士学位论文为例将西藏大学中国少数民族语言(藏... 详细信息

在新形势下,我国少数民族新闻传播事业取得了长足发展,少数民族新闻学的研究成果与队伍建设,为少数民族新闻传播学成为新闻学与传播学的分支学科提供了坚实的基础。文章以藏语言新闻传播硕士学位论文为例将西藏大学中国少数民族语言(藏语言)文学专业下设的藏语言新闻方向硕士学位论文作为样本,对藏语新闻传播学相关研究作了整理和归纳。认为,藏语新闻传播学硕士学位论文将新闻传播学相关研究深入到“少数民族新闻传播学”学科建设领域,为进一步提升和完善少数民族新闻传播学研究提供了重要支撑。在媒介融合已成为传媒发展新常态的当下,藏语言新闻传播学研究呈现主题多样、内容广泛,在多个学术向度上均取得了新进展。文章指出,西藏新闻事业在万物互联与智媒传播的时代大背景下,顺应传播对象收视习惯的变化所涌现出的应对趋势需提炼升华,少数民族新闻事业发展的区域样本与普适理论需深入细致的研究。

关键词：少数民族语言新闻传播研究现状学位论文

Restricted summability of Fourier Transforms and Local Hardy spaces

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica sinica,english series 2010年第9期26卷 1627-1640页

作者： Ferenc WeIsZ Department of Numerical Analysis Etvs L. University

A general summability method, the so-called θ-summability is considered for multi-dimensional Fourier transforms. Under some conditions on θ, it is proved that the maximal operator of the θ-means defined in a cone is bounded from the amalgam Hardy space W（hp, e∞） to W（Lp,e∞）. This implies the almost everywhere convergence of the θ-means in a cone for all f ∈ W（L1, e∞） velong to L1.

关键词： Wiener amalgam spaces local Hardy spaces 0-summability of Fourier transforms atomic decomposition

On the relationship between the activity at point of interests and road traffic

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Communications in Transportation Research 2023年第1期3卷 150-160页

作者： MátéKolat Tamás Tettamanti TamásBécsi Domokos esztergár-Kiss Department of Control for Transportation and Vehicle systems Faculty of Transportation Eng.and Vehicle Eng.Budapest University of Technology and EconomicsBudapest1111PestHungary systems and Control Laboratory Institute for Computer Science and Control of the Eötvös Lorand Research NetworkBudapest1053PestHungary Department of Transport Technology and economics Faculty of Transportation Eng.and Vehicle Eng.Budapest University of Technology and EconomicsBudapest1111PestHungary

The estimation and analysis of road traffic represent the preliminary steps towards satisfying the current needs for smooth,safe,and green ***,effective traffic monitoring is an essential topic alongside the planning of sustainable transportation systems and the development of new traffic management *** contrast to classical traffic detection solutions,this study investigates the correlation between travelers'social activities and road *** s's primary goal is to investigate the presence of the relationship between social activity and road traffic,which might allow an infrastructure-independent traffic monitoring technique as ***'s general activities at Point of Interest(POI)locations(measured as occupancy parameter)are correlated with traffic data so that,finally,proper proxys can be defined for link-level average traffic speed *** method is tested and evaluated using real-world traffic and POI occupancy data from Budapest(District XI.).The results of the correlation investigation justify an indirect relationship between activity at POIs and road traffic,which holds promise for future practical applicability.

关键词： Road traffic estimation Google popular times(GPT) Point of interest(POI) POI occupancy Genetic algorithm(GA)

No Reference Image sharpness Assessment Based on Global Color Difference Variation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of electronics 2024年第1期33卷 293-302页

作者： Chenyang sHI Yandan LIN school of Artificial Intelligence Anhui Polytechnic University school of Mechanical engineering Anhui Polytechnic University Department of Light sources and Illuminating engineering Fudan University Academy for engineering & Technology Fudan University

Image quality assessment(IQA) model is designed to measure the image quality in consistent with subjective ratings by computational models. In this research, a valid no reference IQA(NR-IQA) model for color image sharpness assessment is proposed based on local color difference map in a color space. In the proposed model, the absolute color difference variation and relative color difference variation are combined to evaluate sharpness in YIQ color space(a color coordinate system for the development of the United states color television system). The difference between sharpest and blurriest spot of an image is represented by the absolute color difference variation, and relative color difference variation expresses the variation in the image content. extensive experiments are performed on five publicly available benchmark synthetic blur databases and two real blur databases, and the results prove that the proposed model work better than the other state-of-the-art and latest NR-IQA models for the prediction accuracy on blurry images. Besides, the model maintains the lowest computational complexity.

关键词： Image quality tv Image color analysis Databases Computational modeling Color Predictive models

Understanding the importance of autophagy in human diseases using Drosophila

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2019年第4期46卷 157-169页

作者： Arindam Bhattacharjee áron szabó Tamás Csizmadia Hajnalka Laczkó-Dobos Gábor Juhász Institute of Genetics Biological Research Centre of the Hungarian Academy of Sciences Department of Anatomy Cell and Developmental BiologyE€otv€os Loránd University

Autophagy is a lysosome-dependent intracellular degradation pathway that has been implicated in the pathogenesis of various human diseases, either positively or negatively impacting disease outcomes depending on the specific context. The majority of medical conditions including cancer, neurodegenerative diseases, infections and immune system disorders and inflammatory bowel disease could probably benefit from therapeutic modulation of the autophagy machinery. Drosophila represents an excellent model animal to study disease mechanisms thanks to its sophisticated genetic toolkit, and the conservation of human disease genes and autophagic processes. Here, we provide an overview of the various autophagy pathways observed both in flies and human cells(macroautophagy, microautophagy and chaperone-mediated autophagy), and discuss Drosophila models of the above-mentioned diseases where fly research has already helped to understand how defects in autophagy genes and pathways contribute to the relevant pathomechanisms.

关键词： Drosophila Neurodegeneration Alzheimer’s disease Parkinson’s disease Cancer Inflammatory bowel disease Autophagy

The Contribution of BMI,Body Image Inflexibility,and Generalized Anxiety to symptoms of eating Disorders and exercise Dependence in exercisers

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

International Journal of Mental Health Promotion 2022年第6期24卷 811-823页

作者： Liye Zou Peiying Yang Fabian Herold Weina Liu Attila szabo Alyx Taylor Jing sun Liu Ji Key Laboratory of Adolescent Health Assessment and exercise Intervention of Ministry of education East China Normal UniversityShanghai200241China Body-Brain-Mind Laboratory School of PsychologyShenzhen UniversityShenzhen518060China Research Group Degenerative and Chronic Diseases MovementFaculty of Health Sciences BrandenburgUniversity of PotsdamPotsdam14469Germany Institute of Health Promotion and sports sciences ELTE Eötvös Loránd UniversityBudapest1053Hungary school of Rehabilitation Sport and PsychologyAECC University CollegeBournemouthBH52DFUK school of Medicine and Dentistry Menzies Health Institute QueenslandGriffith UniversityParklandGold CoastQLD4222Australia

1)Background:The common factors which potentially contribute to the development of eating disorders and exercise dependence during early adulthood are still relatively *** present study aimed to examine the role of BMI,body image inflexibility,and generalized anxiety in these two behavioral problems in a sample of college students.2)Methods:In total,878 habitual exercisers(58.1%male with BMI=22.12±2.39;41.9%female with BMI=20.55±2.21)with age of 20.09±1.76 years participated in this *** main outcomes of interest are exercise dependence symptoms,eating disorders symptoms,body image inflexibility,and symptoms of generalized anxiety(as measured by exercise Dependence scale-Revised,eating Disorder examination-Questionnaire-short Form,Body Image Acceptance and Action Questionnaire,and Generalized Anxiety Disorder-7,respectively).Pearson correlation,path analysis,and model fit information were tested.3)Results:After controlling for age,gender,and field of study,lower BMI was linked to more exercise dependence symptoms but this association was not statistically significant,while a greater BMI was significantly associated with a higher risk of developing eating disorders(β=−0.08,peover,higher body image inflexibility significantly and positively contributed to severe exercise dependence(β=0.26,ps well as abnormal eating attitudes and behaviors(β=0.74,permore,generalized anxiety is a significant contributor to exercise dependence symptoms(β=0.14,peating disorders symptoms.4)Conclusion:Based on our finding that body image inflexibility is a common risk factor for the development of exercise dependence and eating disorders,the prevention and treatment of these two disorders should involve the improvement of psychological *** addition,the individual with a higher BMI is more vulnerable to developing eating disorders,while those who have severer generalized anxiety symptoms should be given more attention whe

关键词： Anxiety body image BMI exercise addiction eating disorders

Cantor Type Fixed sets of Iterated Multifunction systems Corresponding to self-similar Networks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2016年第4期7卷 365-374页

作者： Levente simon Anna soós Faculty of Mathematics and Computer science Babes-Bolyai University Cluj-Napoca Romania Faculty of Informatics E&#246 tvö s loránd university Budapest Hungary

We propose a new approach to the investigation of deterministic self-similar networks by using contractive iterated multifunction systems (briefly IMss). Our paper focuses on the generalized version of two graph models introduced by Barabási, Ravasz and Vicsek ([1] [2]). We generalize the graph models using stars and cliques: both algorithm construct graph sequences such that the next iteration is always based on n replicas of the current iteration, where n is the size of the initial graph structure, being a star or a clique. We analyze these self-similar graph sequences using IMss in function of the size of the initial star and clique, respectively. Our research uses the Cantor set for the description of the fixed set of these IMss, which we interpret as the limit object of the analyzed self-similar networks.

关键词： Cantor set Fixed set Iterated Function systems Iterated Multifunction systems self-similar Graphs

中国与东中欧区际与区域内发展差距的动态演变

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国与东中欧区际与区域内发展差距的动态演变