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Determination of riding comfort on cycleways using a smartphone application

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第4期11卷 747-760页

作者： Anna Niska Leif sjögren Peter Andrén Christian Weber Tineke de Jong Aslak Fyhri Department of Infrastructure Maintenance Swedish National Road and Transport Research Institute(VTI)Linköping SE-58195Sweden Department of Safety and Behavior Institute of Transport EconomicsGaustadalleen 210349 OsloNorway

Well maintained cycleways will encourage more people to cycle,as the condition of cycleways is important for the safety,accessibility and riding comfort of *** that,only a few models used to describe the quality of service for cyclists take the surface condition into *** measuring methods are needed to enable reliable and effective assessment of surface conditions,and measurable performance criteria related to the needs of cyclists should be *** purpose of this study has been to test the reliability and validity of using accelerometers in smartphones to assess the riding comfort on cycleways.A smartphone application converting three-dimensional accelerometer measurements into a single indicator for cycleways has been used to assess road surfaces in two field studies,in Sweden and Norway,*** studies assessed test sections of varying *** relate the measurements to subjective riding comfort assessments by cyclists,recruited cyclists collected quantitative data using the app,whilst also rating their perceived riding comfort by completing a *** were also related to standard road surface condition indicators,generated from a road surface tester equipped with 19 laser sensors:international roughness index(IRI),mega-and *** results show that it is possible to describe the unevenness of a cycleway using the technology present in smartphones.A software application can be used to collect and analyse data from the acceleration sensors in the phone,which can then be used to describe the riding comfort of *** is mainly the unevenness in the 50-1000 mm sizerange that create the greatest discomfort for cyclists,and intermittent vibrations are perceived as more uncomfortable than more evenly distributed ***,IRI is not a relevant measurement for describing the riding comfort of cyclists.

关键词： Cyclist Comfort Assessment Road surface measurement Smartphone application

Cancer-associated fibroblasts express CD1d and activate invariant natural killer T cells under cellular stress

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Cellular & Molecular Immunology 2024年第1期21卷 91-94页

作者： Shengduo Pei Jonas sjölund Yueyun Pan Kristian Pietras Mikael C.I.Karlsson Department of Microbiology Tumor and Cell BiologyKarolinska InstitutetStockholmSweden Division of Translational Cancer Research Department of Laboratory MedicineLund University Cancer CentreLund UniversityLundSweden

Invariant natural killer T(iNKT)cells are part of the family of unconventional T cells,and they recognize glycolipid antigens presented on the MHC class I like molecule CD1^([1]).In humans there are five CD1 molecules named CD1a to CD1e,whereas mice use only CD1d for lipid ***,iNKT cells can elicit both cytotoxicity similarly to conventional CD8 T cells and secrete cytokines that influence the adaptive immune response including providing direct T cell help to B cells^([2]).In the context of tumors,they can use both release of granzyme B and use Fas-mediated mechanisms for killing of tumor *** iNKT cells use a restricted TCR repertoire and CD1 molecules are non-heterogenous the risk of graft vs host disease is limited and thus these T cells have been an attractive option for off the shelf immunotherapy to treat cancer^([3]).

关键词： killer CD1d Cancer

基于机器学习方法的短期太阳爆发活动预报模型:综述

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中国科学:地球科学 2024年

作者：黄鑫赵忠瑞钟昱丰徐龙 Marianna B.KORSóS R.erdéLYI 宁波大学信息科学与工程学院中国科学院空间天气学国家重点实验室国家空间科学中心中国科学院大学天文与空间科学学院北京元胞探索科技中心 Dipartimento di Fisica e Astronomia“Ettore Majorana” Universitàdi Catania Department of Astronomy E?tv?s Loránd University Hungarian Solar Physics Foundation Solar Physics&Space Plasma Research Center (SP2RC) School of Mathematics and StatisticsUniversity of Sheffield

太阳爆发活动主要包括太阳耀斑、日冕物质抛射(coronal mass ejections, CME)和太阳质子事件(solar proton events, SPE),太阳爆发活动对空间天气和高技术领域有重要影响.太阳爆发活动短期预报是空间天气预报中一个活跃的研究领域.目前... 详细信息

太阳爆发活动主要包括太阳耀斑、日冕物质抛射(coronal mass ejections, CME)和太阳质子事件(solar proton events, SPE),太阳爆发活动对空间天气和高技术领域有重要影响.太阳爆发活动短期预报是空间天气预报中一个活跃的研究领域.目前,数值的、统计的和机器学习的方法被用来建立太阳爆发活动预报模型.随着天基和地基观测设备的发展,积累了大量的太阳观测数据,数据驱动的太阳爆发活动预报模型取得了重大进展.本文介绍了机器学习算法在太阳爆发活动预报中的应用,总结了预报建模过程,概述了太阳爆发活动预报模型的进展,并展望了未来可能的研究方向.

关键词：太阳耀斑日冕物质抛射太阳质子事件机器学习预报模型

Enabling Technologies for Autonomous Robotic Systems in Manufacturing

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期41卷 403-431页

作者： erdŐS Gábor ABAI Kristóf BEREGI Richárd CSEMPESZ János CSERTEG Tamás GODÓGábor HAJÓS Mátyás HÁY Borbála HORVÁTH Dániel HORVÁTH Gergely JUNIKIÁdám KEMÉNY Zsolt KOVÁCS András NACSA János PANITI Imre PEDONE Gianfranco TAKÁCS Emma TIPARY Bence ZAHORÁN László VÁNCZA József Institute for Computer Science and Control Hungarian Research Network(HUN-REN SZTAKI)BudapestHungary Department of Manufacturing Science and Technology Budapest University of Technology and Economics(BME)BudapestHungary EPIC InnoLabs Nonprofit Ltd. BudapestHungary Eötvös Loránd University(ELTE) BudapestHungary

Research of autonomous manufacturing systems is motivated both by the new technical possibilities of cyber-physical systems and by the practical needs of the *** operation in semi-structured industrial environments can now be supported by advanced sensor technologies,digital twins,artificial intelligence and novel communication *** enable real-time monitoring of production processes,situation recognition and prediction,automated and adaptive(re)planning,teamwork and performance improvement by *** paper summarizes the main requirements towards autonomous industrial robotics and suggests a generic workflow for realizing such *** case studies will be presented from recent practice at HUN-REN SZTAKI in a broad range of domains such as assembly,welding,grinding,picking and placing,and *** various solutions have in common that they use a generic digital twin concept as their *** making general recommendations for realizing autonomous robotic solutions in the industry,open issues for future research will be discussed.

关键词： industrial robotics autonomy digital twin enabling technology

State Transition Induced by Self-Steepening and Self Phase-Modulation

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Chinese Physics Letters 2014年第1期31卷 33-36页

作者： Jing-Song, He Shu-Wei, Xu Ruderman, M. S. erdélyi, R. Department of Mathematics Ningbo University Ningbo 315211 DAMTP University of Cambridge Cambridge CB3 0WA UK School of Mathematics University of Science and Technology of China Hefei 230026 Solar Physics and Space Plasma Research Centre University of Sheffield Sheffield S3 7RH UK

We present a rational solution for a mixed nonlinear Schr6dinger （MNLS） equation. This solution has two free parameters, a and b, representing the contributions of self-steepening and self phase-modulation （SPM） of an associated physical system, respectively. It describes five soliton states： a paired bright-bright soliton, a single soliton, a paired bright-grey soliton, a paired bright-black soliton, and a rogue wave state. We show that the transition among these live states is induced by self-steepening and SPM through tuning the values of a and b. This is a unique and potentially fundamentally important phenomenon in a physical system described by the MNLS eauation.

关键词： SCHRODINGER equation SELF-phase modulation NONLINEAR optics RESEARCH SOLITONS

The potential application of red mud and soil mixture as additive to the surface layer of a landfill cover system

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Journal of Environmental Sciences 2016年第6期28卷 189-196页

作者： Eva Ujaczki Viktória Feigl Mónika Molnár Emese Vaszita Nikolett Uzinger Attila erdélyi Katalin Gruiz Department of Applied Biotechnology and Food Science Faculty of Chemical Technology and Biotechnology Budapest University of Technology and Economics H-1111 Budapest Muegyetem rkp. 3 Hungar Institute for Soil Sciences and Agricultural Chemistry Centre for Agricultural Research Hungarian Academy of Sciences H-1022 Budapest Herman Otto Street 15 Hungary A.S.A. Hungary Ltd. H-2360 Gydl Karosi Street 53 Hungary

Red mud, the by-product of aluminum production, has been regarded as a problematic residue all over the world. Its storage involves risks as evidenced by the Ajka red mud spill,an accident in Hungary where the slurry broke free, flooding the surrounding areas. As an immediate remediation measure more than 5 cm thick red mud layer was removed from the flooded soil surface. The removed red mud and soil mixture（RMSM） was transferred into the reservoirs for storage. In this paper the application of RMSM is evaluated in a field study aiming at re-utilizing waste, decreasing cost of waste disposal and providing a value-added product. The purpose was to investigate the applicability of RMSM as surface layer component of landfill cover systems. The field study was carried out in two steps： in lysimeters and in field plots. The RMSM was mixed at ratios ranging between 0 and 50% w/w with low quality subsoil（LQS） originally used as surface layer of an interim landfill cover. The characteristics of the LQS ＋ RMSM mixtures compared to the subsoil（LQS） and the RMSM were determined by physical–chemical, biological and ecotoxicological methods. The addition of RMSM to the subsoil（LQS） at up to 20% did not result any ecotoxic effect, but it increased the water holding capacity. In addition, the microbial substrate utilization became about triple of subsoil（LQS） after 10 months. According to our results the RMSM mixed into subsoil（LQS） at20% w/w dose may be applied as surface layer of landfill cover systems.

关键词： Red mud Soil amelioration Environmental toxicology Landfill cover constituent Field-study Lysimeter

Electrochemical reduction process of bilirubin in dimethylformamide

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Chinese Journal of Chemistry 1995年第4期13卷 289-298页

作者： NIU, JJ DONG, sj CHINESE ACAD SCI CHANGCHUN INST APPL CHEMELECTROANALYT CHEM LABCHANGCHUN 130022PEOPLES R CHINA

The electrochemical reduction behavior of bilirubin (BR) at platinum electrode in DMF was investigated by cyclic voltammetry, in situ electron spin resonance spectroscopy and in situ rapid scanning thin layer spectroelectrochemistry. Experimental results revealed that the reduction of BR firstly undergoes an ECE process: GRAPHICS The generated (BR)(2)(3-). can be re-oxidized to BR and then to purpurin (Pu) by a series of oxidation processes: GRAPHICS However, the re-reduction reactions of Pu are not the reverse processes. The different reduction mechanisms are discussed in detail.

关键词： BILIRUBIN BILIVerdIN PURPURIN SPECTROELECTROCHEMISTRY BIOELECTROCHEMISTRY

SYNTHESIS　OF　BLOCK　COPOLYMERS　OF　STYRENE　AND　N－（p－SUBSTITUTED　PHENYL）　MALEIMIDES　BY　ANIONIC　POLYMERIZATION

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Chinese Chemical Letters 1996年第4期7卷 367-370页

作者： Xu, sj Qiu, KY BEIJING UNIV COLL CHEM & MOL ENGNBEIJING 100871PEOPLES R CHINA

The block copolymers were synthesized by anionic pohymerization via two steps reaction. First, styrene was initiated by n-butyl lithium, then maleimides were added into the living styrene system to obtain block copolymers. 1H-NMR and FT-IR measurements indicated that block coplymers bad been formed From the esults of thermogravimetric, it could be concluded that the block copolymer had a much better thermal stability than random copolymers predared by radical polymerization. Also the surface hydrophilicities of the two kinds of copolymers were compared.

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Effects of pigment glands and gossypol on somatic cell culture of upland cotton (Gos-sypium hirsutum L.)

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Chinese Science Bulletin 2001年第23期46卷 1975-1980页

作者： Zhu, sj Ji, DF Zhejiang Univ Fac Agr & Biotechnol Dept Agron Hangzhou 310029 Peoples R China

The effects of pigment glands and gossypol on the somatic cell culture of upland cotton were studied, using the materials as follows: three pairs of glanded and gland less upland cotton near isogenic lines, TM-1, and Coker 312. The results showed that the pigment glands and gossypol contents in the explants had great inhibiting effect on the induction and growth of callus in somatic cell culture of upland cotton, and the induction rate of callus and the single callus weight of glandless cotton were much higher than those of their glanded near isogenic lines. It was easier to obtain regeneration plants from glandless cotton than from their glandednear isogenic lines. There was a significant inverse correlation between the gossypol contents in the explants and callus induction rate, with the correlation coefficient of -0.84. The vitro gossypol in the medium had some inhibiting effect on the induction and growth of callus, especially for the gland-less cotton. However, a certain concentration of vitro

关键词： pigment gland gossypol G. hirsutum somatic cell cul- ture.