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Performances of an air thermal energy utilization system developed with fan-coil units in large-scale plastic tunnels covered with external blanket

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International Journal of Agricultural and Biological Engineering 2022年第5期15卷 56-62页

作者： chengji zong Zibin Xiao Weitang Song Pingzhi Wang Guifang Zhang Ming Li College of Water Resources and Civil Engineering China Agricultural UniversityBeijing 100083China Yinchuan Xingqing District Agricultural Technology Extension Center Yinchuan750001China Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural AffairsBeijing 10008

To improve the problem of low temperature at night in winter due to the lack of thermal storage in large-span plastic tunnels,an air thermal energy utilization system(ATEUS)was developed with fan-coil units to heat a large-scale plastic tunnel covered with an external blanket(LPTEB)on winter *** ATEUS was composed of nine fan-coil units mounted on top of the LPTEB,a water reservoir,pipes,and a water circulation *** the heat exchange between the air and the water flowing through the coils,the thermal energy from the air can be collected in the daytime,or the thermal energy in the water can be released into the LPTEB at *** sunny days,the collected thermal energy from the air in the daytime(E_(c))and released thermal energy at night(E_(r))were 0.25-0.44 MJ/m^(2) and 0.24-0.38 MJ/m^(2),*** ATEUS as a heating system,its coefficient of performance(COP),which is the ratio of the heat consumption of LPTEB to the power consumption of ATEUS,ranged from 1.6-2.1.A dynamic model was also developed to simulate the water temperature(T_(w)).Based on the simulation,E_(c) and E_(r) on sunny days can be increased by 60%-73%and 38%-62%,respectively,by diminishing the heat loss of the water reservoir and increasing the indoor air temperature in the period of collecting thermal ***,the COP can reach 2.6-3.8,and the developed ATEUS can be applied to heating the LPTEB in a way that conserves energy.

关键词： large scale plastic tunnel air thermal energy utilization system energy conservation COP

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表冷器-热泵联合集热系统的优化及可用能分析

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农业工程学报 2022年第15期38卷 241-248页

作者：宋卫堂耿若王平智刘平建宗成骥中国农业大学水利与土木工程学院北京100083 农业农村部设施农业工程重点实验室北京100083 曹县百草庄园农业开发有限公司菏泽274400

为进一步提升表冷器-热泵联合集热系统的放热性能,并为系统进行节能优化提出方向和途径建议,首先计算了储热池优化水温42℃目标下的实际蓄水量,试验并分析了蓄水量的减少对系统集放热性能的影响;在此基础上,进行了两种集热方式、一种放... 详细信息

为进一步提升表冷器-热泵联合集热系统的放热性能,并为系统进行节能优化提出方向和途径建议,首先计算了储热池优化水温42℃目标下的实际蓄水量,试验并分析了蓄水量的减少对系统集放热性能的影响;在此基础上,进行了两种集热方式、一种放热方式的可用能分析,进一步明确了系统在3种运行方式时可用能损失的主要位置和原因;最后,提出了表冷器-热泵联合集热系统主要工作部件节能优化的建议。试验结果表明:优化蓄水量为8.4 m^(3)的条件下,系统的放热功率和放热性能系数分别为27.1 kW和6.2,提升了33.5%和37.8%,放热性能提升显著。可用能分析表明,水泵的可用能效率最高,最高可达98.8%;表冷器-风机的可用能效率在表冷器-风机集热方式、热泵与表冷器-风机联合集热方式、放热模式下分别为89.3%、87.8%、60.1%,传热温差造成的不可逆损失是放热模式下效率较低的原因;热泵机组可用能效率最低,仅为46.4%,是后续系统节能优化的重点。该研究为优化提升主动集放热系统的节能性,提供了方向指导和解决新思路。

关键词：温室表冷器-热泵优化可用能分析

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基于天气预报的日光温室夜间逐时气温预测模型构建

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农业工程学报 2022年第S1期38卷 218-225页

作者：宗成骥王建玉宋卫堂耿若刘平建徐丹中国农业大学水利与土木工程学院北京100083 农业部设施农业工程重点实验室北京100083 山东曹县百草庄园农业开发有限公司菏泽274400

为得到一种可行的日光温室夜间逐时气温预测方法,从而提高主动集放热系统的适应力,该研究尝试从中国天气网发布的天气预报中获取试验地点72 h天气状况、室外气温等气象信息,同时将爬取筛选的天气状况简分为晴天、多云天以及阴天三类,并... 详细信息

为得到一种可行的日光温室夜间逐时气温预测方法,从而提高主动集放热系统的适应力,该研究尝试从中国天气网发布的天气预报中获取试验地点72 h天气状况、室外气温等气象信息,同时将爬取筛选的天气状况简分为晴天、多云天以及阴天三类,并基于多元线性回归、支持向量机回归和随机森林回归方法,选取2020年11月-2021年2月中晴天、多云天和阴天各25 d的数据作为训练集,选取训练集外的三种天气各10 d的数据作为测试集,分别构建了三种天气状况下温室内夜间逐时气温预测模型。该研究使用均方误差(MSE)和决定系数(R2)对各类模型预测精度进行评价:晴天和多云天时,随机森林回归模型预测精度最高,MSE、R2分别达到了0.37、0.94和0.05、0.98,而阴天时支持向量机回归模型预测精度最高,MSE、R2分别达到了0.40、0.87;根据不同的天气状况选用精度最高的回归模型进行气温预测,经验证预测气温和实测气温的变化曲线拟合度较高,单因素方差分析显示两者间无显著差异(P>0.05),在晴天、多云天和阴天MSE分别为0.19、0.19和0.15,R2分别达到了0.98、0.95和0.90,平均绝对误差依次为0.1、0.3和0.3℃。因此,该研究所构建的基于天气预报的日光温室夜间逐时气温预测模型预测精度较高,可以为主动集放热系统放热策略的制定提供指导。

关键词：温室天气预报气温预测支持向量机随机森林

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Smart Gas Sensors:Recent Developments and Future Prospective

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Nano-Micro Letters 2025年第3期17卷 55-86页

作者： Boyang zong Shufang Wu Yuehong Yang Qiuju Li Tian Tao Shun Mao College of Environmental Science and Engineering Biomedical Multidisciplinary Innovation Research InstituteShanghai East HospitalState Key Laboratory of Pollution Control and Resource ReuseTongji University1239 Siping RoadShanghai 200092People’s Republic of China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092People’s Republic of China Microbiome Medicine Center Department of Laboratory MedicineZhujiang HospitalSouthern Medical UniversityGuangzhou 510280People’s Republic of China

Gas sensor is an indispensable part of modern society withwide applications in environmental monitoring,healthcare,food industry,public safety,*** the development of sensor technology,wireless communication,smart monitoring terminal,cloud storage/computing technology,and artificial intelligence,smart gas sensors represent the future of gassensing due to their merits of real-time multifunctional monitoring,earlywarning function,and intelligent and automated *** electronicand optoelectronic gas sensors have been developed for high-performancesmart gas *** the development of smart terminals and the maturityof integrated technology,flexible and wearable gas sensors play an increasingrole in gas *** review highlights recent advances of smart gassensors in diverse *** structural components and fundamentalprinciples of electronic and optoelectronic gas sensors are described,andflexible and wearable gas sensor devices are ***,sensorarray with artificial intelligence algorithms and smart gas sensors in“Internet of Things”paradigm are ***,the challengesand perspectives of smart gas sensors are discussed regarding the future need of gas sensors for smart city and healthy living.

关键词： Smart gas sensor Electronic sensor Optoelectronic sensor Flexible and wearable sensor Artificial intelligence

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First observation results of Macao Science Satellite-1 on lightning-induced electron precipitation

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Science China Earth Sciences 2025年第1期68卷 1-10页

作者： Yongping WANG Yixin SUN Qiugang zong Gaopeng LU Xudong GU Ze-Jun HU Bin LI Key Laboratory for Polar Science Ministry of Natural Resources Polar Research Institute of China Institute of Space Physics and Applied Technology Peking University State Key Laboratory of Lunar and Planetary Science Macau University of Science and Technology School of Earth and Space Sciences University of Science and Technology of China School of Electronic Information Wuhan University

The Medium-energy Electron Spectrometers(MES) is a space-borne instrument onboard Macao Science Satellite-1(MSS-1) dedicated to monitoring the typical charged particle radiation characteristics in the satellite orbit and the process of their occurrence and development, including short bursts of lightning-induced electron precipitation(LEP).This paper presents the first results of the LEP measurements by the MSS-1.47 LEP events are identified with the routine operation for 3 months since satellite launch, all within the range of 1.5

关键词： Lightning-induced electron precipitation Inner radiation belts Energetic electrons Macao Science Satellite-1

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Simulations of electron zebra stripes in the inner radiation belt using a composite empirical electric field model

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Science China Earth Sciences 2025年第1期68卷 27-38页

作者： Ziyang WANG Ying LIU Qiugang zong Hong ZOU Yuguang YE Xuzhi ZHOU Chao YUE Shan WANG Institute of Space Physics and Applied Technology Peking University State Key Laboratory of Lunar and Planetary Science Macau University of Science and Technology

The phenomenon termed “zebra stripes” manifests as regular patterns in the energy-space(L shell) spectrum of energetic electrons(ranging from tens to hundreds ke V) within the inner radiation belt. These structures exhibit drift-periodic behavior and commonly arise from large-scale electric field perturbations near the substorm onsets. In this study, we introduce a composite electric field model and replicate the formation, structure, and evolution of zebra stripes using a bounce-averaged test particle code under this electric field model. High-resolution measurements of energetic electrons obtained from the Van Allen Probes and the recently launched Macao Science Satellites-1 are used as initial conditions and served to validate our test particle simulations. Comparative analyses between observed data and simulations demonstrate our test particle method's efficacy in capturing zebra stripes' general behavior. Moreover, the composite model proves capable of reproducing realistic variations in the electric field within the inner radiation belt to a certain extent. Nevertheless, subtle differences emerge in the flux strength and the positions of stripes. These disparities primarily stem from limitations inherent in the electric field model and the initial conditions of the simulation. Acknowledging that the model represents an average case, it is conceivable that real-world scenarios may deviate from the average, thereby introducing variations in the observed phenomena.

关键词： Zebra stripes Inner radiation belt Large-scale electric fields Van Allen Probes Macao Science Satellite

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寒潮天气表冷器-风机集放热系统对连栋大棚热湿环境的影响

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农业工程学报 2021年第15期37卷 214-221页

作者：宗成骥王平智陈先知李明何雪颖王建玉徐丹宋卫堂中国农业大学水利与土木工程学院北京100083 农业部设施农业工程重点实验室北京100083 温州科技职业学院温州市设施蔬菜工程技术中心温州325000

连栋塑料大棚棚内环境易受寒潮侵扰,为调节棚内热湿环境,将表冷器-风机集放系统应用于连栋塑料大棚中,在白天适宜条件下运行系统,将棚内空气盈余的热量收集并储存在蓄热水箱中,夜间气温较低时,再将储存的热量释放出来用以加温。对表冷器... 详细信息

连栋塑料大棚棚内环境易受寒潮侵扰,为调节棚内热湿环境,将表冷器-风机集放系统应用于连栋塑料大棚中,在白天适宜条件下运行系统,将棚内空气盈余的热量收集并储存在蓄热水箱中,夜间气温较低时,再将储存的热量释放出来用以加温。对表冷器-风机集放热系统的运行效果进行试验,通过集热量、放热量和性能系数等评价集放热性能,并且将水气温差作为主要影响因素对系统运行阶段分别进行热流量分析和分析。结果表明,在寒潮下系统可以保证棚内气温比棚外高5.2~7.8℃。集热量达到了390.6~693 MJ,放热量为361.2~609 MJ,系统性能系数达到了4.4~7.2,节能效果较为显著。系统在运行过程中水气温差每增长1℃,集热流量增加0.82 kW,放热流量增加0.58 kW,单位时间内换热量较大;此外系统在集热阶段析湿系数约为1.70,表冷器-风机进出口空气含湿量差最高可达1.3×10^(-3) kg/kg,说明在集热阶段系统具有冷凝除湿的效果;同时在冷凝除湿过程中系统效率随着水气温差的增加而增加,最高可达到82.8%,能量利用率较高。该研究对保证连栋塑料大棚安全越冬生产具有重要意义。

关键词：设施温度连栋大棚表冷器-风机热湿环境加温除湿

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Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng Gao Yu-Gui Peng Peng Wu zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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Application of the improved dung beetle optimizer,muti-head attention and hybrid deep learning algorithms to groundwater depth prediction in the Ningxia area,China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 18-23页

作者： Jiarui Cai Bo Sun Huijun Wang Yi Zheng Siyu Zhou Huixin Li Yanyan Huang Peishu zong Collaborative Innovation Center on forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjingChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiChina China Meteorological Administration Key Laboratory of Transportation MeteorologyNanjingChina Jiangsu Meteorological Observatory NanjingChina

Due to the lack of accurate data and complex parameterization,the prediction of groundwater depth is a chal-lenge for numerical *** learning can effectively solve this issue and has been proven useful in the prediction of groundwater depth in many *** this study,two new models are applied to the prediction of groundwater depth in the Ningxia area,*** two models combine the improved dung beetle optimizer(DBO)algorithm with two deep learning models:The Multi-head Attention-Convolution Neural Network-Long Short Term Memory networks(MH-CNN-LSTM)and the Multi-head Attention-Convolution Neural Network-Gated Recurrent Unit(MH-CNN-GRU).The models with DBO show better prediction performance,with larger R(correlation coefficient),RPD(residual prediction deviation),and lower RMSE(root-mean-square error).Com-pared with the models with the original DBO,the R and RPD of models with the improved DBO increase by over 1.5%,and the RMSE decreases by over 1.8%,indicating better prediction *** addition,compared with the multiple linear regression model,a traditional statistical model,deep learning models have better prediction performance.

关键词： Groundwater depth Multi-head attention Improved dung beetle optimizer CNN-LSTM CNN-GRU Ningxia

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An internally linked dibenzihexaphyrin

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Science China Chemistry 2025年

作者： Zhaohui zong Xiaotong Zhang Zhe Liu Guangliu Ran Wenkai Zhang Xiansheng Ke College of Chemistry Beijing Normal University School of Physics and Astronomy Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum Studies Beijing Normal University Key Laboratory of Multiscale Spin Physics Ministry of Education Beijing Normal University

Hexaphyrins are one of the most studied expanded porphyrins that show intriguing electronic structure and coordination abilities in the past decades. However, core-modified hexaphyrins especially for benzene-replaced hexaphyrins are much less ***, we revisit the dibenzihexaphyrin system and demonstrate how to achieve the hexaphyrin-like organometallic nature of a benzene-replaced expanded porphyrin. For the “true” di-m-benzihexaphyrin 2, metal complex with anticipated CCNN coordination is not realized probably due to the steric hindrance. Further, we synthesized an internally linked dibenzihexaphyrin (3)with a direct carbon–carbon bond between two phenylenes. As prepared, 3 has a strained biphenyl unit and can effectively coordinate two Cu(III) ions with CCNN coordination. This sharp contrast underscores the critical importance of the formed preorganized corrole-like adj-CCNN cavities after linking two flanking phenylenes. 3 can also act as a bidentate ligand like traditional hexaphyrin, enabling the formation of an even more strained bis-Rh(I) complex. The electronic structures and photophysical properties of the free base and metal complexes are systematically studied by steady state absorption and fstransient absorptions (fs-TA) spectroscopies, as well as DFTcalculations. Notably, 3 can be regarded as a hexaphyrin-sized backto-back fused bis-dicarbacorrole, which stands as the smallest fused carbaporphyrinoid array prepared to date.

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