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基于人体热调节模型的局部辐射温度对热舒适的影响

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浙江理工大学学报（自然科学版） 2020年第1期43卷 130-135页

作者：马景辉魏厚福杨艺真汪辰戴博斌浙江理工大学建筑工程学院

为了探究非均匀热辐射环境中局部辐射温度对人体热舒适的影响,利用温冷感实验和中国人体热调节模型,研究了局部辐射温度与局部和整体热感觉之间的关系。结果表明:头部、手部、脚部的热感觉对整体热感觉的回归系数分别为0.504、0.441、0.... 详细信息

为了探究非均匀热辐射环境中局部辐射温度对人体热舒适的影响,利用温冷感实验和中国人体热调节模型,研究了局部辐射温度与局部和整体热感觉之间的关系。结果表明:头部、手部、脚部的热感觉对整体热感觉的回归系数分别为0.504、0.441、0.461,对整体热感觉影响显著;在冬季室内设计温度为16.0℃的供暖工况和夏季室内设计温度为28.0℃的供冷工况下,当脚部和头部的辐射温度分别为23.3℃和23.2℃时,人体的热舒适度可分别达到Ⅱ级和Ⅰ级;当室内风速为0.1m/s、相对湿度为50%,人体代谢量为1met,服装热阻冬季为1.2clo,夏季为0.7clo时,通过模型计算获得了人体等热舒适度线,并得到了局部环境空气温度与辐射温度的关系。

关键词：局部辐射温度中国人体热调节模型热感觉等热舒适度线

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空气污染气象条件预报评估技术与应用

气象科技进展 2017年第6期7卷 150-156页

作者：许建明瞿元昊常炉予周广强马井会长三角环境气象预报预警中心上海200030

空气污染气象条件的预报和评估是环境气象业务的重要内容,对重污染天气预报预警、大气污染减排效果评估、重大活动空气质量保障具有重要意义。介绍了上海市气象局开展空气污染气象条件预报评估的主要思路、技术方法和工作实践,讨论了空... 详细信息

空气污染气象条件的预报和评估是环境气象业务的重要内容,对重污染天气预报预警、大气污染减排效果评估、重大活动空气质量保障具有重要意义。介绍了上海市气象局开展空气污染气象条件预报评估的主要思路、技术方法和工作实践,讨论了空气污染气象条件预报评估业务中存在的问题和技术发展方向。

关键词：空气污染气象条件大气化学模式预报评估

Re-Os isotopic constraint to the age of in komatiites in the Neoarchean Guyang greenstone belt,North China Craton

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Chinese Science Bulletin 2010年第27期55卷 3197-3204页

作者： ma XuDong GUO jinghui CHEN Liang CHU ZhuYin State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China State Key Laboratory of Continental Dynamics Department of Geology Northwest University Xi'an 710069 China

The 2.5 Ga Guyang greenstone belt is a major lithological unit in the northwestern part of the North China *** have recently been identified to occur within the lower part of the meta-volcanic sedimentary sequence of the greenstone *** biggest komatiite near Guyang has been mapped out,which is 500 m long and 50 m wide lenticular ***-Os isotopic compositions of 9 samples were analyzed to date the *** Os contents are from 0.88 to 2.63 ppb,identical with typical komatiites,and slightly lower than the normal *** 187Os/188Os ratios are from 0.1115 to 0.1197,which are lower enough to exclude the origin of Phanerozoic magma as widely developed in adjacent *** calculated Re depletion model ages(TRD) are from 1346 to 2454 ma,among them the oldest age of 2454 ma gives the minimum evaluation for the formation age of the Guyang ***,the komatiites are a part of the Guyang greenstone belt,indicating high degree melting of mantle during～2.5 Ga crustal growth event.

关键词：科马提岩中国西北部同位素组成形成年龄固阳县绿岩带克拉通新太古代

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景德镇市白鹭大桥设计

上海公路 2011年第2期 36-39,13页

作者：马骉葛竞辉袁建兵张俊杰林秀桂上海市政工程设计研究总院(集团)有限公司 200092

景德镇市白鹭大桥主桥系3跨连续独塔单索面竖琴式无背索斜拉桥,钢塔钢箱梁,塔梁墩固结。跨径组合为45m+120m+45m。白鹭大桥在建筑景观上进行了大胆的尝试,充分利用桥梁结构自身独特而又富有韵律的特点,将大桥变成从昌江中展翅起飞的白... 详细信息

景德镇市白鹭大桥主桥系3跨连续独塔单索面竖琴式无背索斜拉桥,钢塔钢箱梁,塔梁墩固结。跨径组合为45m+120m+45m。白鹭大桥在建筑景观上进行了大胆的尝试,充分利用桥梁结构自身独特而又富有韵律的特点,将大桥变成从昌江中展翅起飞的白鹭造型,结构和建筑设计均具有一定的特点。同时,主梁采用顶推施工,主塔采用竖拼竖转施工工艺,国内极为少见。就此较为详细地阐述了主桥的总体布置、主题结构、建筑景观等方面的设计以及关键技术和施工方法。

关键词：白鹭大桥无背索斜拉桥钢箱梁钢塔

DC-FIPD: Fraudulent IP Identification Method Based on Homology Detection

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Computers, materials & Continua 2024年第11期81卷 3301-3323页

作者： Yuanyuan ma Ang Chen Cunzhi Hou Ruixia Jin jinghui Zhang Ruixiang Li College of Computer and Information Engineering Henan Normal UniversityXinxiang453007China Intelligent Medical Engineering SanQuan Medical CollegeXinxiang453003China Information Engineering University Information Engineering UniversityZhengzhou450001China Key Laboratory of Cyberspace Situation Awareness of Henan Province Zhengzhou450001China

Currently,telecom fraud is expanding from the traditional telephone network to the Internet,and identifying fraudulent IPs is of great significance for reducing Internet telecom fraud and protecting consumer ***,existing telecom fraud identification methods based on blacklists,reputation,content and behavioral characteristics have good identification performance in the telephone network,but it is difficult to apply to the Internet where IP(Internet Protocol)addresses change *** address this issue,we propose a fraudulent IP identification method based on homology detection and DBSCAN(Density-Based Spatial Clustering of Applications with Noise)clustering(DC-FIPD).First,we analyze the aggregation of fraudulent IP geographies and the homology of IP ***,the collected fraudulent IPs are clustered geographically to obtain the regional distribution of fraudulent ***,we constructed the fraudulent IP feature set,used the genetic optimization algorithm to determine the weights of the fraudulent IP features,and designed the calculation method of the IP risk value to give the risk value threshold of the fraudulent ***,the risk value of the target IP is calculated and the IP is identified based on the risk value *** results on a real-world telecom fraud detection dataset show that the DC-FIPD method achieves an average identification accuracy of 86.64%for fraudulent ***,the method records a precision of 86.08%,a recall of 45.24%,and an F1-score of 59.31%,offering a comprehensive evaluation of its performance in fraud *** results highlight the DC-FIPD method’s effectiveness in addressing the challenges of fraudulent IP identification.

关键词： Fraudulent IP identification homology detection clustering genetic optimization algorithm telecom fraud identification

A 2-year study on the effect of biochar on methane and nitrous oxide emissions in an intensive rice-wheat cropping system

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Biochar 2019年第2期1卷 177-186页

作者： Shuwei Wang Shutan ma Jun Shan Yongqiu Xia jinghui Lin Xiaoyuan Yan State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Changshu Agro-ecological Experimental Station Chinese Academy of SciencesChangshu 215555China School of Environmental Science and Engineering Anhui Normal UniversityWuhu 241002China

The impacts of biochar addition with nitrogen fertilizer(Urea-N)on greenhouse gas(GHG)fluxes and grain yields are not comprehensively ***,we designed a field experiment in an intensive rice-wheat cropping system located in the Taihu Lake region of China and measured CH4 and N_(2)O emissions for 2 consecutive years to examine the impacts of biochar combined with N-fertilizer on rice production and GHG *** field experimental treatments were designed:(1)no N-fertilizer application(N0);(2)270 kg N ha^(−1) application(N270);and(3)270 kg N-fertilizer ha^(−1) plus 25 t ha^(−1) biochar application(N270+C).We found that,compared with urea application alone,biochar applied with Urea-N fertilizer increased N use efficiency(NUE)and resulted in more stable growth of rice *** addition,biochar addition increased CH4 emissions by 0.5-37.5%on average during the two consecutive rice-growing seasons,and decreased N_(2)O-N loss by~16.7%.During the first growing season,biochar addition did not significantly affect the global warming potential(GWPt)or the greenhouse gas intensity(GHGI)of rice production(p>0.05).By contrast,during the second rice-growing season,biochar application significantly increased GWPt and GHGI by 28.9%and 18.8%,respectively,mainly because of increased CH_(4) *** results suggest that biochar amendment could improve grain yields and NUE,and increased soil GWPt,resulting in a higher potential environmental cost,but that biochar additions enhance exogenous carbon sequestration by the soil,which could offset the increases in GHG emissions.

关键词： Biochar Greenhouse gas fluxes Rice yields N use efficiency(NUE)

A review on the sealing structure and materials of fuel-cell stacks

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Clean Energy 2023年第1期7卷 59-69页

作者： jinghui Zhao Huijin Guo Yuchen Xing Shaobo Ping Weikang Lin Yanbo Yang Zixi Wang Tiancai ma School of Automotive Studies Tongji UniversityNo.4800 Caoan HighwayShanghaiP.R.China Institute of Carbon Neutrality Tongji UniversityShanghai200092P.R.China AT&M Environmental Engineering Technology Co. LtdNo.76 Xueyuan South RoadHaidian DistrictBeijing100081P.R.China Central Iron and Steel Research Institute Group No.76 Xueyuan South RoadHaidian DistrictBeijing100081P.R.China Department of Mechanical Engineering Tsinghua UniversityBeijing 100084P.R.China

Proton-exchange-membrane fuel cells(PEMFCs)have the characteristics of zero emissions,a low operating temperature and high power density,and have great potential in improving energy-utilization ***,fuel cells are still quite expensive as a result of the cost of key components,including the membranes,catalysts and bipolar plates of *** a result of the cost and importance of these items,most researchers have focused on improving the lifetime and performance of fuel-cell stacks in recent *** contrast,seals,sealants and adhesives play a more mundane role in the overall performance of a fuel cell,but failure of these materials can lead to reduced system efficiency,system failure and even safety *** attention has been paid to the performance and durability of these products but as other fuel-cell components improve,these seals are becoming an even more critical link in the long-term performance of fuel *** article highlights the importance and background of fuel-cell *** latest research progress on the mechanical properties and structural optimization of different sealing materials is reviewed.

关键词： proton-exchange-membrane fuel cell sealing structure sealing materials

A robust graphene oxide memristor enabled by organic pyridinium intercalation for artificial biosynapse application

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Nano Research 2023年第8期16卷 11278-11287页

作者： Yang Li Songtao Ling Ruiyu He Cheng Zhang Yue Dong Chunlan ma Yucheng Jiang Ju Gao jinghui He Qichun Zhang Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and TechnologySuzhou University of Science and TechnologySuzhou 215009China College of Chemistry Chemical Engineeringand Materials ScienceSoochow UniversitySuzhou 215123China Department of materials Science and Engineering City University of Hong KongKowloonHong Kong 999077China Department of Chemistry&Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong KongKowloonHong Kong 999077China

Graphene oxide(GO)-based memristors offer the promise of low cost,eco-friendliness,and mechanical flexibility,making them attractive candidates for outstanding flexible electronic ***,their resistive transitions often display abrupt change rather than bidirectional progressive tuning,which largely limits their applications for biological synapse emulation and neuromorphic ***,a memristor with a novel layered structure of GO/pyridinium/GO is presented with tunable bidirectional *** inserted organic pyridinium intercalation succeeds in serving as a satisfactory buffer layer to intrinsically control the formation of conductive filaments during device operation,leading to progressive conductance ***,the essential synaptic behaviors including analog memory characteristics,excitatory postsynaptic current,paired pulse facilitation,prepulse inhibition,spike-timing-dependent plasticity,and spike-rate-dependent plasticity are *** emulation of brain-like“learning-forgetting-relearning”process is also ***,the instant responses of the memristor can be stimulated by low operational voltages and short pulse *** study paves one way for GO-based memristors to actuate appealing features such as bidirectional tuning and fast speed switching that are desirable for the development of bio-inspired neuromorphic systems.

关键词： graphene oxide nanoscale memristor 2D materials flexible electronics artificial synapses

Modified dynamic event-triggered scaled formation control for multi-agent systems via a sparrow search algorithm based co-design algorithm

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Frontiers of Information Technology & Electronic Engineering 2024年第2期25卷 197-213页

作者： Yanping YANG Siyu ma Dawei LI jinghui SUO College of Information Science and Technology Donghua UniversityShanghai201620China Engineering Research Center of Digitized Textile&Apparel Technology Donghua UniversityShanghai201620China State Key Laboratory for Modification of Chemical Fibers and Polymer materials College of Information Science and TechnologyDonghua UniversityShanghai201620China

This paper is concerned with the scaled formation control problem for multi-agent systems(maSs)over fixed and switching ***,a modified resilient dynamic event-triggered(DET)mechanism involving an auxiliary dynamic variable(ADV)based on sampled data is *** the proposed DET mechanism,a random variable obeying the Bernoulli distribution is introduced to express the idle and busy situations of communication ***,the operation of absolute value is introduced into the triggering condition to effectively reduce the formation ***,a scaled formation control protocol with the proposed resilient DET mechanism is designed over fixed and switching *** scaled formation error system is modeled as a time-varying delay ***,several sufficient stability criteria are derived by constructing appropriate Lyapunov-Krasovskii functionals(LKFs).A co-design algorithm based on the sparrow search algorithm(SSA)is presented to design the control gains and triggering parameters ***,numerical simulations of multiple unmanned aerial vehicles(UAVs)are presented to validate the designed control method.

关键词： Scaled consensus Formation control Dynamic event-triggered scheme Switching topology