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莫高轶事——记莫高窟的园林绿化

敦煌研究 2024年第4期 33-36页

作者：孙儒僩敦煌研究院甘肃敦煌736200

看绿树成荫的林荫道相伴古老的石窟,就是如今莫高窟的景观,可是在八十多年前的莫高窟,树木稀疏,一片荒芜,直到1944年莫高窟被国家接管之后,在所长常书鸿的领导下进行了一系列有效管理,特别是重视对莫高窟园林的绿化,对已有的树木倍加爱... 详细信息

看绿树成荫的林荫道相伴古老的石窟,就是如今莫高窟的景观,可是在八十多年前的莫高窟,树木稀疏,一片荒芜,直到1944年莫高窟被国家接管之后,在所长常书鸿的领导下进行了一系列有效管理,特别是重视对莫高窟园林的绿化,对已有的树木倍加爱护,即便莫高窟搞修建需要木材,也去敦煌城购买,而不采伐窟前林木。同时又在窟前、河岸边、河对岸广种树木,有绿化树、亦有果树,为了让窟前常绿,又引进了敦煌以前从没有种植过的柏树,在长期的植树造林过程中,也在不断思索,不断更新,才造就了窟前林木花草的景观。真正是前人栽树,后人乘凉,如今开放的莫高窟广纳游人,置身窟前的林荫道中,惬意游玩。

关键词：莫高窟园林绿化绿树成荫

Atmospheric HONO formation during and after the Spring Festival holidays in a coastal city of China

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Journal of Environmental Sciences 2023年第5期127卷 251-263页

作者： xue Ni Cuizhi sun Yongyun Zhang Baoling Liang Shengzhen Zhou Guangdong Lan Jun Zhao School of Atmospheric Sciences Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studiesand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Sun Yat-sen UniversityZhuhai 519082China Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Zhuhai 519082China Key Laboratory of Tropical Atmosphere-Ocean System Ministry of EducationZhuhai 519082China

Nitrous acid(HONO)is an important source of hydrogen oxides(HOx),which affects air quality,the atmospheric oxidation capacity,and human ***,we present ambient measurements of the HONO concentrations in Zhuhai,a coastal city in Southern China,from February 7 to March 15,*** campaign was classified into two periods during(P1)and after(P2)the Spring Festival *** average HONO mixing ratio during P2(1.19±0.85 ppbv)was much higher than that during P1(0.24±0.18 ppbv),likely due to the contribution of homogeneous HONO *** nighttime,the heterogeneous conversion rate during P2(0.0089/hr)was considerably higher than that during P1(0.0057/hr),suggesting a higher heterogeneous NO_(2) conversion ***,the heterogeneous NO_(2) conversion was the dominant way during P1 with a high percentage of 88%,while comparable ratios of heterogeneous and homogeneous formation were found(54%vs.46%)during P2,indicating that the homogeneous formation was also important during *** daytime,homogeneous reaction was the major known pathway,with a contribution of 16%during P1 and 27%during P2,leaving large unknown HONO sources which reasonably correlated with the photo-enhanced NO_(2) *** case scenarios were additionally explored,showing that there might be a primary emission source during one scenario(February 17-18)and vehicle emissions might be the major unknown HONO source for another scenario(March 3–5).The results suggest that large unknown daytime sources still exist which need more future ambient and laboratory studies.

关键词： Nitrous acid Nocturnal and daytime budget Heterogeneous conversion Homogeneous formation Coastal area

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中国化景观社会与文旅融合新场景

旅游学刊 2024年第1期39卷 6-8页

作者：孙九霞中山大学旅游学院广东广州510275 中山大学旅游休闲与社会发展研究中心广东广州510275

在媒介社会背景下,媒介的力量不断塑造新型的社会形态和社会关系,也正在重构旅游目的地并改变人们的体验方式。多元力量形塑着景观社会的样貌,并推动文旅融合发展出诸多新场景。我们该如何解读中国化景观社会的特质?西方景观社会理论在... 详细信息

在媒介社会背景下,媒介的力量不断塑造新型的社会形态和社会关系,也正在重构旅游目的地并改变人们的体验方式。多元力量形塑着景观社会的样貌,并推动文旅融合发展出诸多新场景。我们该如何解读中国化景观社会的特质?西方景观社会理论在中国情境中有何种解释力和局限性?又该如何理解文旅融合带来的新动力对“场景社会”的塑造?

关键词：文旅融合媒介社会新场景体验方式旅游目的地景观社会理论新动力中国情境

Secondary solar heat gain modelling of spectral-selective glazing based on dynamic solar radiation spectrum

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Building Simulation 2023年第12期16卷 2211-2224页

作者： Peng xue Yi Shen Sheng Ye Jinqing Peng Yanyun Zhang Qianqian Zhang Yuying sun Beijing Key Laboratory of Green Built Environment and Energy Efficient Technology Beijing University of TechnologyBeijing 100124China Faculty of Architecture Civil and Transportation EngineeringBeijing University of TechnologyBeijing 100124China State Grid Zhongxing CO. LTDLvyuan BranchBeijing 100761China College of Civil Engineering Hunan UniversityChangsha 410082HunanChina Key Laboratory for New Functional Materials of Ministry of Education Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China

The secondary solar heat gain,defined as the heat flows from glazing to indoor environment through longwave radiation and convection,grows with the increasing of glazing *** the rapid development and application of spectrally selective glazing,the secondary solar heat gain becomes the main way of glazing heat transfer and biggest proportion,and indicates it should not be simplified calculated ***,a dynamic secondary solar heat gain model is developed with electrochromic glazing system in this study,taking into account with three key aspects,namely,optical model,heat transfer model,and outdoor radiation *** with the traditional K-Sc model,this new model is verified by on-site experimental measurements with dynamic outdoor spectrum and *** verification results show that the root mean square errors of the interior and exterior glass surface temperature are 3.25°C and 3.33°C,respectively,and the relative error is less than 10.37%.The root mean square error of the secondary heat gain is 13.15 W/m2,and the dynamic maximum relative error is only 13.2%.The simulated and measured results have a good *** addition,the new model is further extended to reveal the variation characteristics of secondary solar heat gain under different application conditions(including orientations,locations,EC film thicknesses and weather conditions).In summary,based on the outdoor spectrum and window spectral characteristics,the new model can accurately calculate the increasing secondary solar heat gain in real time,caused by spectrally selective windows,and will provide a computational basis for the evaluation and development of spectrally selective glazing materials.

关键词： econdary solar heat gain spectral-selective glazing solar spectrum dynamic heat transfer

Comparison of Three Data-Driven Networked Predictive Control Methods for a Class of Nonlinear Systems

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IEEE/CAA Journal of Automatica Sinica 2022年第9期9卷 1714-1716页

作者： Zhong-Hua Pang xue-Ying Zhao Jian sun Yuntao Shi Guo-Ping Liu the Key Laboratory of Fieldbus Technology and Automation of Beijing North China University of TechnologyBeijing 100144China the State Key Laboratory of Intelligent Control and Decision of Complex Systems School of AutomationBeijing Institute of TechnologyBeijing 100081China the Center for Control Science and Technology Southern University of Science and TechnologyShenzhen 518055China

Dear Editor,In this letter,in order to deal with random network delays and packet losses in a class of networked nonlinear systems,three data-driven networked predictive control methods are *** closed-loop systems and... 详细信息

关键词： letter Nonlinear nonlinear

自我老化态度对老年人抑郁情绪的影响:家庭韧性的调节作用

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山东第一医科大学（山东省医学科学院）学报 2024年第2期45卷 103-107页

作者：薛娇美孙霞苏静杨丽慧山东女子学院社会与法学院山东济南250300 山东省教育发展服务中心山东济南250013 山东第一医科大学期刊中心山东济南250117 山东第一医科大学附属肿瘤医院少见肿瘤内科山东济南250117

目的探讨老年人自我老化态度与抑郁情绪的关系,以及家庭韧性的调节作用。方法采用简化老化态度量表、家庭韧性量表和患者健康问卷-9对山东省386名社区老年人进行问卷调查。结果(1)消极的自我老化态度可以显著正向预测抑郁总分;(2)控... 详细信息

目的探讨老年人自我老化态度与抑郁情绪的关系,以及家庭韧性的调节作用。方法采用简化老化态度量表、家庭韧性量表和患者健康问卷-9对山东省386名社区老年人进行问卷调查。结果(1)消极的自我老化态度可以显著正向预测抑郁总分;(2)控制在自我老化态度与抑郁的关系之间起调节作用(β=-0.166,P<0.001),与控制得分处于高水平(β=0.372,P<0.001)时相比,控制得分处于低水平时,自我老化态度对老年人抑郁的影响更显著(β=0.862,P<0.001)。(3)挑战在自我老化态度和抑郁之间起调节作用(β=0.101,P=0.028)。与挑战得分处于低水平(β=0.327,P=0.009)时相比,挑战得分处于高水平时,自我老化态度对老年人抑郁的影响更显著(β=0.652,P<0.001)。结论老年人自我老化态度能够影响其抑郁水平,而家庭韧性中的控制和挑战水平在其中起调节作用。

关键词：自我老化态度抑郁家庭韧性老年人

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文旅发展驱动城乡融合的理论效能

旅游学刊 2024年第6期39卷 1-3页

作者：孙九霞中山大学旅游学院广东广州510275 中山大学粤港澳发展研究院广东广州510275

城乡关系历来是关涉国家现代化发展水平的根本性问题②。长期以来,我国城乡发展不平衡引致乡村和城市均面临一系列社会问题。从乡村层面看,人口外流、文化凋敝、产业滞后、治理失效等一系列“乡村病”掣肘乡村社会可持续发展。

关键词：人口外流城乡融合城乡发展不平衡现代化发展水平治理失效根本性问题社会可持续发展乡村

切向燃烧煤粉锅炉二次风系统气体飞灰颗粒流动特性研究

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锅炉技术 2024年第2期55卷 15-19,31页

作者：刘兴袁东辉付喜亮刘贵喜孟浩赵凯孙利内蒙古京能盛乐热电有限公司内蒙古呼和浩特011517 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司内蒙古呼和浩特010020

二次风系统是煤粉锅炉燃烧系统的重要组成部分,气体中携带的飞灰颗粒在二次风系统内沉积将影响气体流动特性,严重时还会影响锅炉安全运行。以某350 MW超临界四角切圆煤粉锅炉的二次风系统为研究对象,采用数值模拟方法计算并分析了气体... 详细信息

二次风系统是煤粉锅炉燃烧系统的重要组成部分,气体中携带的飞灰颗粒在二次风系统内沉积将影响气体流动特性,严重时还会影响锅炉安全运行。以某350 MW超临界四角切圆煤粉锅炉的二次风系统为研究对象,采用数值模拟方法计算并分析了气体飞灰颗粒流动特性。计算结果表明:在均等配风方式的二次风门开度条件下,中间4层辅助风的速度基本相同,3层分离燃尽风(SOFA)风量占二次风总量的38.4%;各二次风门开度不变时,二次风入口速度变化对各燃烧器喷嘴风量分配影响不大。由于重力作用,飞灰颗粒进入大风箱后会向下流动,颗粒越大趋势越明显;AA层辅助风的含灰量较大,喷嘴出口附近的水冷壁较容易磨损;飞灰颗粒容易在2、3号角大风箱底部沉积,需要在底部合理设计排灰管。

关键词：四角切圆燃烧二次风管道大风箱飞灰颗粒沉积

Localization effect in single crystal of RuAs_(2)

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Chinese Physics B 2024年第4期33卷 195-200页

作者：易哲铠刘琪光双魁徐升岳小宇梁慧李娜周颖吴丹丹孙燕李秋菊程鹏夏天龙孙学峰王义炎 Anhui Key Laboratory of Magnetic Functional Materials and Devices Institute of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Department of Physics and Key Laboratory of Strongly-Coupled Quantum Matter Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China School of Optical and Electronic Information Suzhou City UniversitySuzhou 215104China School of Physics and Optoelectronic Engineering Anhui UniversityHefei 230601China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

We report the magnetotransport and thermal properties of RuAs_(2) single ***_(2) exhibits semiconductor behavior and localization *** crossover from normal state to diffusive transport in the weak localization(WL)state and then to variable range hopping(VRH)transport in the strong localization state has been *** transitions can be reflected in the measurement of resistivity and Seebeck *** magnetoresistance(NMR)emerges with the appearance of localization effect and is gradually suppressed in high magnetic *** temperature dependent phase coherence length extracted from the fittings of NMR also indicates the transition from WL to *** measurement of Hall effect reveals an anomaly of temperature dependent carrier concentration caused by localization *** findings show that RuAs_(2) is a suitable platform to study the localized state.

关键词： weak localization variable range hopping RuAs_(2) single crystal