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Investigation of NR-PM1 Species and Effect on Visibility in Xi'an,China

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Investigation of NR-PM1 Species and Effect on Visibility in ...

An Empirical Study on Self-Efficacy of Online Learning of Overseas Chinese Children in Europe

十一届全国气溶胶会议暨第十届海峡两岸气溶胶技术研讨会

作者： yichen wang JunJi Cao State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

With an Aerodyne Aerosol Chemical Speciation Monitor, we mainly focused on the variation of NRM1 species, its inorganic species formation and its effect on visibility impairment under a stable atmospheric condition(low wind speed period, from 1 September to 6 September, from 26 September to 1 October respectively). The NRM1 took up 0% of PM2.5. Organic contributes the most(58% on average) to the NRM1 mass loading, other species make 0% contributions. Through Principle component analysis, we found NH4+, SO42- and NO3- played a stably significant role on visibility impairment within different period of the day. With the IMPROVE equation, Light scattering from NRM1 was 80% of that from PM2.5, illustrating the dominance of NRM1 in the light scattering process. Organics contributed the most to light scattering during this period whereas(NH4)2SO4 and NH4NO3 played more important role on the visibility variation than Org did. Overall, it is the combination of organics,(NH4)2SO4 and NH4NO3, not a single species that are responsible for the variation of visibility variation. Sulfate formation was dominated with gas phase reactions during daytime and droplet phase reactions at night. Nitrate particles, however, were not formed immediately after gas phase reactions in the afternoon. Two types of OA(HOA and OOA) were found in this study. The oxygenation level of organics was relatively high and photochemical reaction proceeded rapidly in the afternoon. BBOA(biomass burning organic aerosol) cannot be resolved though tracers of BBOA(m/z 60 and 73) have a prominent signal, illustrating the similar variation of time series between these two factors, which maybe resulted from the traditional energy consumption pattern in villages.

关键词： ACSM NRPM 1 stable atmospheric condition formation visibility HOA OOA

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教育技术与创新 2022年第2期 1-12页

作者： Junyi Jiang yichen wang Chenlu Sun Zhiling Yang School of Foreign Studies Wenzhou UniversityWenzhou

In the post-Covid-19 pandemic era,it is more difficult for some Chinese schools in Europe to provide online extra classes for overseas Chinese children after school hours,as they did *** meet students'multifaceted learning needs,online extra classes teaching,including online Chinese language classes and some online art classes,is increasingly being offered as a supplement to the diversity of teaching activities in Chinese schools in Europe,with the ultimate goal of improving the learning abilities of overseas Chinese children while relieving pressure on teaching resources in ***’s learning self-efficacy in online extracurricular courses has its own uniqueness,which can be considered from three dimensions,including learning confidence,learning ability,and self-assessment *** study aims to examine the factors influencing the self-efficacy of overseas Chinese children and to make optimization suggestions for better teaching *** search of that,an online questionnaire survey with 127 participants from overseas Chinese children aged􀀘to􀀔􀀘was *** findings indicate that the role of learning confidence in overseas Chinese children outweighs their learning ability and self-assessment *** and age have a negligible effect on self-efficacy but have an impact on learning *** schools in Europe do not need to show gender differences when conducting classroom activities in online teaching to improve the online self-efficacy of Chinese children,and efforts should also be made to keep the courage of older students to trial and *** are expected to investigate more aspects of their students'personalities in future classrooms rather than sticking to a consistent and unchanging teaching model.

关键词： overseas Chinese children self-efficacy online learning gender differences age differences

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增氧微咸水对小白菜光响应特征及产量的影响

农业工程学报 2020年第9期36卷 116-123页

作者：孙燕王怡琛王全九西安理工大学省部共建西北旱区生态水利国家重点实验室西安710048 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室杨凌712100

为了探讨水培条件下微咸水溶解氧浓度对小白菜光响应特征及产量的影响,测定了5种增氧水平下小白菜的光合响应过程,并采用直角双曲线模型、非直角双曲线模型、直角双曲线修正模型和指数模型分别对小白菜光响应曲线进行拟合比较,筛选出最... 详细信息

为了探讨水培条件下微咸水溶解氧浓度对小白菜光响应特征及产量的影响,测定了5种增氧水平下小白菜的光合响应过程,并采用直角双曲线模型、非直角双曲线模型、直角双曲线修正模型和指数模型分别对小白菜光响应曲线进行拟合比较,筛选出最优模型并利用最优模型对小白菜的光合特征参数进行了计算。试验结果表明,经误差分析,不同增氧水平下4种模型的光响应曲线拟合结果存在差异,非直角双曲线模型对所有处理的模拟精度均最高,是分析增氧微咸水水培条件下小白菜光响应曲线的最优模型。光响应曲线参数显示,18.5 mg/L的微咸水溶解氧浓度处理下小白菜的暗呼吸速率、表观量子效率、最大净光合速率均显著高于其他微咸水增氧处理。此外,18.5 mg/L的微咸水溶解氧浓度处理下小白菜的净光合速率和地上部鲜质量也显著高于其他微咸水增氧处理。因此,利用微咸水培养小白菜较为适宜的溶解氧浓度约为18.5 mg/L,该增氧处理有利于增强小白菜的耐荫性和忍受高光强的能力,增大小白菜叶片的可利用光强范围,提高叶片的生理活性,并促进小白菜叶片光合作用的高效运行,进而实现小白菜高产。

关键词：光合作用微咸水溶解氧小白菜光合特征光响应模型

Efficacy of Zhumian Tang formula granules(助眠汤配方颗粒)combined with eszopiclone for the treatment of poor sleep quality:a multi-center,randomized controlled,superiority trial

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Journal of Traditional Chinese Medicine 2024年第1期44卷 163-171页

作者： wang yichen WU Shiyi wang Zhengyan CHANG Wenling XIE Zhihao TANG Xing ZHAO Songmei ZHOU Jing CHEN Zehong wang Chao YANG Chunxia Orthopedic geriatrics department Sichuan Province Orthopedic HospitalChengdu 610093China Department of Epidemiology and Biostatistics West China School of Public Health and West China Fourth HospitalSichuan UniversityChengdu 610041China Sub-health department Sichuan Integrative Medicine HospitalChengdu 610041China College of Acupuncture and Massage Chengdu University of Traditional Chinese MedicineChengdu 610041China Internal Medicine Department Ya'an Hospital of Traditional Chinese MedicineYa’an 625000China Preventive Treatment of Disease Center Dazhou Integrated TCM and Western Medicine HospitalDazhou Second People’s HospitalDazhou 635000China Geriatrics Department Dayi Wang Country Hospital of Traditional Chinese MedicineChengdu 611330China

OBJECTIVE:To evaluate the efficacy and safety of Zhumian Tang formula granules(助眠汤配方颗粒)combined with eszopiclone for treating poor sleep ***:This multi-center,dynamic blockrandomized,parallel-group superiority clinical trial included 130 *** combined treatment group received Zhumian Tang formula granules combined with eszopiclone treatment,and the control group received eszopiclone treatment *** group allocation ratio was 1∶*** duration of treatment was 2 *** were asked to complete questionnaires before treatment,after 1 week of the intervention,after 2 weeks of the intervention,and at the follow-up on week *** primary outcomes were the Pittsburgh Sleep Quality Index(PSQI)score and the total effective rate of *** secondary outcome was the rate of adverse ***:Compared with the eszopiclone treatment group,the PSQI score of the combined treatment group was significantly lower after 2 weeks of the intervention(6.98 vs 8.26,P<0.05).However,there was no significant difference in the mean PSQI score after 1 week of the intervention(9.89 vs 9.15,P=0.124).After the follow-up on week 3,the PSQI score of the combined treatment group remained significantly lower than that of the eszopiclone treatment group(6.12 vs 8.31,P<0.001).The total effective rates of treatment of the combined group and the eszopiclone group were 36.92%vs 35.38%(Z=0.033,P=0.855)after 1 week of the intervention,83.08%vs 58.46%(Z=9.519,P<0.05)after 2 weeks of the intervention,and 83.08%vs 61.54%(Z=7.530,P<0.05)and after the follow-up on week 3,*** was no significant difference in the overall rate of adverse reactions between the combined and eszopiclone treatment groups(21.53%vs 31.8%,P=0.318).CONCLUSION:The combination of Zhumian Tang formula granules with eszopiclone was found to be safe and more effective in improving sleep quality than eszopiclone *** Chinese medicine can enhance the effectiveness of Western m

关键词： sleep quality eszopiclone randomized controlled trial superiority Zhumian Tang formula granules

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Enhancing physical-layer security via big-data-aided hybrid relay selection

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Journal of Communications and Information Networks 2017年第1期2卷 97-110页

作者： Hongliang He Pinyi Ren Qinghe Du Li Sun yichen wang School of Electronic and Information Engineering Xi'an Jiaotong UniversityXi'an 710049China Shaanxi Smart Networks and Ubiquitous Access Research Center Xi'an 710049China

The explosive growth in data trac presents new challenges to the new generation of wireless communication systems,such as computing capabilities,spectrum eciency and *** this paper,we use the network structure,which is adaptable for the big data trac,to improve the security of wireless *** cally,a big-data aided hybrid relay selection scheme is designed and analyzed to enhance physical layer ***,considering the ideal situation that an eavesdropper's CSI(Channel State Information)is known to the legal nodes,we propose an optimal hybrid relay selection scheme consisting of the optimal mode selection scheme and the optimal relay selection *** this case,we analyze the upper bound of an eavesdropper's capacity in FD(Full-Duplex)mode and the secrecy outage probabilities of the optimal HD(Half-Duplex),FD,and hybrid relay selection *** the analysis of data,it is clear that the mode selection is decided by the self-interference of the FD ***,the instantaneous CSI of an eavesdropper is dicult to obtain due to the passive characteristic of eavesdroppers in ***,a more practical hybrid relay selection scheme with only the channel distribution information of an eavesdropper is further studied,where a weighting factor is employed to guarantee that the hybrid mode is no worse than either the FD mode or HD mode when the self-interference ***,the simulation results show the improved security of our proposed scheme.

关键词： Big data hybrid relay selection secrecy outage probability eavesdropper physical layer security

作为话语构成的现实主义及其历史化考察——以秦兆阳“广阔的现实主义”为中心

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江淮论坛 2021年第3期 166-173页

作者：汪一辰上海大学文学院上海200444

现实主义作为典型的中国问题,是新中国文论70年来古今中西文论话语资源的一个重要交汇场。将现实主义视为"话语构成",以历史化为方法在"文论场"中去探讨经典马克思主义、中国马克思主义、俄苏马克思主义、西方马克思主义和东欧马克思主... 详细信息

现实主义作为典型的中国问题,是新中国文论70年来古今中西文论话语资源的一个重要交汇场。将现实主义视为"话语构成",以历史化为方法在"文论场"中去探讨经典马克思主义、中国马克思主义、俄苏马克思主义、西方马克思主义和东欧马克思主义的共时性对话,是打破单一线性叙事、还原文论史现场、在"世界中的中国"视野下理解当代中国文论经验的一条可行性路径。秦兆阳"广阔的现实主义"就是这样一个具有典型性的"话语构成",它见证了新中国初期社会主义现实主义话语规范建构的"另一面",也参与了新时期当代中国文论经典化历程,20世纪90年代它所面临的"博物馆化"和文艺思想史转向,体现了现实主义诗学在中国的发展、挑战与困境。从媒介上看,秦兆阳的现实主义属于"印刷媒介下的现实主义",将"数字媒介下的虚拟真实"纳入现实主义的理论视域,是立足当代赛博文艺的生产机制下发展中国马克思主义文论的一次重要契机。因此,"‘广阔’的现实主义"的"广阔"便可以理解为充满实践精神的"未完成性"。

关键词： “广阔的现实主义” 话语构成文论场历史化赛博艺术

“影响的多元网络”:作为一种比较诗学方法论的可能性——读曾军《巴赫金对当代西方文学理论的影响研究》

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中国比较文学 2022年第4期 214-218页

作者：汪一辰上海大学文学院

平行研究和影响研究构成比较诗学的两大基本方法,若是对这两种方法进行简单的公式化提炼,平行研究是讨论“A与B”的关系,影响研究则是讨论“A到B”的关系,但是究其本质,它们的共同点均在于讨论两个主体之间的关系。(1)然而,理论旅行中... 详细信息

平行研究和影响研究构成比较诗学的两大基本方法,若是对这两种方法进行简单的公式化提炼,平行研究是讨论“A与B”的关系,影响研究则是讨论“A到B”的关系,但是究其本质,它们的共同点均在于讨论两个主体之间的关系。(1)然而,理论旅行中发生的大量案例显示,很多时候“放送者—接受者”不只是在两个主体间发生的,接受者可能同时受到几个不同放送者影响,由此构成的多元主体间关系应当怎样理论化?上海大学曾军教授近期出版的专著《巴赫金对当代西方文学理论的影响研究》(以下简称《影响研究》,北京:社会科学文献出版社,2021年),从方法论角度对上述问题进行了回应。

关键词：平行研究比较诗学理论旅行当代西方文学上海大学接受者巴赫金近期出版

An Innovation Sequence Variance Interference Detection Algorithm based on Reference Noise

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An Innovation Sequence Variance Interference Detection Algor...

第十四届中国卫星导航年会

作者： yichen wang Xiaohui Liu Chao Wen Zichen Xu National University of Defense Technology

Spoofing interference poses a threat to the positioning and timing security of GNSS that cannot be ignored. In traditional spoofing interference detection algorithms, the spoofing rate is often regarded as an unknown constant, which is not consistent with the actual spoofing interference. For the case of spoofing rate jitter in actual spoofing interference, this paper proposes an innovation variance spoofing interference detection algorithm based on reference noise. The jittered spoofing rate is modelled as a random variable obeying nonzero mean Gaussian distribution, and the detection statistics of innovation sequence variance is constructed by comparing the reference noise variance in the stationary no-spoofing state with the innovation sequence variance in the motion state for spoofing interference detection. Simulation results show that the proposed method has high sensitivity and good detection performance for spoofing of jitter rate. Compared with the traditional method, the proposed algorithm has obvious advantages in detection speed under real spoofing environment. In addition, the proposed method is insensitive to the mean of spoofing rate and has positive detection performance especially for slow-varying deception.

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嵌入式软件可靠性仿真测试环境框架

计算机工程 2006年第19期32卷 43-45,48页

作者：王轶辰刘斌阮镰北京航空航天大学工程系统工程系北京100083

提出了一种针对嵌入式软件进行可靠性测试的仿真测试环境框架。分析了仿真测试环境的系统特性并对其功能组件进行了介绍,对测试环境中的测试运行时组件进行了功能需求的分析,构建出测试运行时组件的框架实现,借助于UML中的抽象类图和顺... 详细信息

提出了一种针对嵌入式软件进行可靠性测试的仿真测试环境框架。分析了仿真测试环境的系统特性并对其功能组件进行了介绍,对测试环境中的测试运行时组件进行了功能需求的分析,构建出测试运行时组件的框架实现,借助于UML中的抽象类图和顺序图描述对框架的静态特征和动态特征作了介绍,总结了利用框架实现仿真测试环境的优势。

关键词：嵌入式软件软件可靠性测试可靠性测试环境半实物仿真测试