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Solar image reconstruction method under atmospheric turbulence at Fuxian Lake Solar Observatory

Astronomical Techniques and Instruments 2024年第2期1卷 128-139页

作者： Sizhong Zou zhenyu jin Kaifan Ji Jun Xu Lei Yang Yunnan Observatories Chinese Academy of SciencesKunming 650216China Yunnan Key Laboratory of Solar Physics and Space Science Kunming 650216China University of Chinese Academy of Sciences Beijing 101408China

Strong atmospheric turbulence reduces astronomical seeing,causing speckle images acquired by ground-based solar telescopes to become blurred and *** distortion in speckle images impedes image phase deviation in the speckle masking reconstruction method,leading to the appearance of spurious imaging *** only on linear image degradation principles to reconstruct solar images is *** solve this problem,we propose the multiframe blind deconvolution combined with non-rigid alignment(MFBD-CNRA)method for solar image *** consider image distortion caused by atmospheric turbulence and use non-rigid alignment to correct pixel-level distortion,thereby achieving nonlinear constraints to complement image intensity *** creating the corrected speckle image,we use the linear method to solve the wavefront phase,obtaining the target *** verify the effectiveness of our method results,compared with others,using solar observation data from the 1 m new vacuum solar telescope(NVST).This new method successfully reconstructs high-resolution images of solar observations with a Fried parameter r0 of approximately 10 cm,and enhances images at high *** r0 is approximately 5 cm,the new method is even more *** reconstructs the edges of solar graining and sunspots,and is greatly enhanced at mid and high frequency compared with other *** confirm the effectiveness of this method,with respect to both nonlinear and linear constraints in solar image *** provides a suitable solution for image reconstruction in ground-based solar observations under strong atmospheric turbulence.

关键词： Astronomical seeing Solar telescopes Solar observatories Astronomy image processing Phase error Deconvolution

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基于“大数据+AI”的黑土地保护与利用智能决策关键技术研究

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中国资源综合利用 2024年第3期42卷 43-45页

作者：靳祯雨内蒙古第六地质矿产勘查开发有限责任公司内蒙古呼伦贝尔021000

黑土地是一种性状好、肥力高的土壤,非常适合植物生长,广泛分布在黑龙江省、吉林省、辽宁省和内蒙古自治区,其对维护粮食安全和生态平衡极为重要。本研究将大数据与人工智能(Artificial Intelligence,AI)相结合,设计基于“大数据+AI”... 详细信息

黑土地是一种性状好、肥力高的土壤,非常适合植物生长,广泛分布在黑龙江省、吉林省、辽宁省和内蒙古自治区,其对维护粮食安全和生态平衡极为重要。本研究将大数据与人工智能(Artificial Intelligence,AI)相结合,设计基于“大数据+AI”的黑土地保护与利用智能决策系统。该系统融合遥感、气候、土壤和人类活动数据,通过智能分析提供全面的土地退化监测和修复方案。本研究对提高黑土地保护效率、促进农业可持续发展具有重要意义。

关键词：大数据 AI 黑土地保护与利用智能决策

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基于国土空间规划的资源环境承载力评价——以巴彦淖尔市为例

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中国资源综合利用 2024年第4期42卷 65-67页

作者：靳祯雨内蒙古第六地质矿产勘查开发有限责任公司内蒙古呼伦贝尔021000

资源环境承载力评价是国土空间规划的重要组成部分,旨在科学评估区域内自然资源和环境对人类活动的支持能力。以巴彦淖尔市为研究区,结合国土空间规划,运用地理信息系统与层次分析法,构建资源环境承载力评价指标体系,对生态保护、农业... 详细信息

资源环境承载力评价是国土空间规划的重要组成部分,旨在科学评估区域内自然资源和环境对人类活动的支持能力。以巴彦淖尔市为研究区,结合国土空间规划,运用地理信息系统与层次分析法,构建资源环境承载力评价指标体系,对生态保护、农业生产和城镇建设进行详细评估。评价结果揭示巴彦淖尔市生态保护、农业生产和城镇建设功能方面的不同承载等级,为研究区可持续发展和资源环境保护提供科学依据。研究指出,巴彦淖尔市生态环境保护形势严峻,农用地利用率低,有必要优化国土空间格局,提高资源利用效率,提升资源环境承载力。

关键词：国土空间规划资源环境承载力地理信息系统层次分析法巴彦淖尔市

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河南省数据中心能源计量审查现状、存在问题分析及建议

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计量与测试技术 2024年第1期51卷 34-35,38页

作者：孙彦楷靳振宇河南省计量测试科学研究院

开展数据中心能源计量审查是国家市场监管总局的工作部署,是为数据中心的节能规划和节能技术改造提供科学的数据支撑。本文通过分析河南省数据中心能源计量审查的现状及存在问题,提出解决措施,并给出审查建议,为数据中心能源计量审查工... 详细信息

开展数据中心能源计量审查是国家市场监管总局的工作部署,是为数据中心的节能规划和节能技术改造提供科学的数据支撑。本文通过分析河南省数据中心能源计量审查的现状及存在问题,提出解决措施,并给出审查建议,为数据中心能源计量审查工作提供参考。

关键词：数据中心能源计量审查能效检测

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Recent progress on nanomaterial-based electrochemical dissolved oxygen sensors

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Chinese Journal of Chemical Engineering 2024年第4期68卷 103-119页

作者： Shaoqi Zhang Tao Liu zhenyu Chu Wanqin jin State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China

Dissolved oxygen(DO)usually refers to the amount of oxygen dissolved in *** the environment,medicine,and fermentation industries,the DO level needs to be accurate and capable of online monitoring to guide the precise control of water quality,clinical treatment,and microbial *** with other analytical methods,the electrochemical strategy is superior in its fast response,low cost,high sensitivity,and portable ***,an electrochemical DO sensor faces a trade-off between sensitivity and long-term stability,which strongly limits its practical *** solve this problem,various advanced nanomaterials have been proposed to promote detection performance owing to their excellent electrocatalysis,conductivity,and chemical ***,in this review,we focus on the recent progress of advanced nanomaterial-based electrochemical DO *** the comparison of the working principles on the main analysis techniques toward DO,the advantages of the electrochemical method are *** is placed on recently developed nanomaterials that exhibit special characteristics,including nanostructures and preparation routes,to benefit DO ***,we also introduce some interesting research on the configuration design of the electrode and device,which is rarely ***,the different requirements of the electrochemical DO sensors in different application fields are included to provide brief guidance on the selection of appropriate ***,the main challenges are evaluated to propose future development prospects and detection strategies for nanomaterial-based electrochemical sensors.

关键词： Nanomaterial Dissolved oxygen Electrochemical sensor Nanostructures Detection principles

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Temperature field characteristics of CF/PEEK thermoplastic composites formed by automated fiber placement using hot gas torch with slit structure nozzle

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Chinese Journal of Aeronautics 2024年第6期37卷 392-409页

作者： Ziang jin Shouzheng SUN Sunil Chandrakant JOSHI zhenyu HAN Hongya FU State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001China School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore

In-situ consolidation forming of high-performance thermoplastic composites by Automated Fiber Placement(AFP)is of significant interest in *** the laying process,the heating temperature has a great influence on the quality of the formed components.A threedimensional heat transfer finite element model of Carbon Fiber(CF)/Polyether Ether Ketone(PEEK)heated by Slit Structure Nozzle Hot Gas Torch(SSNHGT)assisted AFP is *** influence of gas flow rate,heat transfer distance,and laying speed on heating temperature is *** results show that the overall temperature increases and then decreases as the gas flow rate *** the increase in heat transfer distance and laying speed,the overall temperature ***,the gas flow rate has the greatest influence on the temperature of CF/PEEK being heated,followed by the laying speed and finally the heat transfer ***,the model can also be extended to other fiber-reinforced polymer composites formed by hot gas torch assisted AFP,which can guide the optimization of process parameters for subsequent heating temperature control.

关键词： Fiber reinforced plastics Thermoplastics Heating temperature Automated fiber placement CF/PEEK

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High-resolution Solar Image Reconstruction Based on Non-rigid Alignment

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Research in Astronomy and Astrophysics 2022年第9期22卷 63-71页

作者： Hui Liu zhenyu jin Yongyuan Xiang Kaifan Ji Yunnan Observatories Chinese Academy of SciencesKunming 650216China

Suppressing the interference of atmospheric turbulence and obtaining observation data with a high spatial resolution are an issue to be solved urgently for ground observations. One way to solve this problem is to perform a statistical reconstruction of short-exposure speckle images. Combining the rapidity of Shift-Add and the accuracy of speckle masking, this paper proposes a novel reconstruction algorithm-NASIR(Non-rigid Alignment based Solar Image Reconstruction). NASIR reconstructs the phase of the object image at each frequency by building a computational model between geometric distortion and intensity distribution and reconstructs the modulus of the object image on the aligned speckle images by speckle interferometry. We analyzed the performance of NASIR by using the correlation coefficient, power spectrum, and coefficient of variation of intensity profile in processing data obtained by the NVST(1 m New Vacuum Solar Telescope). The reconstruction experiments and analysis results show that the quality of images reconstructed by NASIR is close to speckle masking when the seeing is good, while NASIR has excellent robustness when the seeing condition becomes worse. Furthermore, NASIR reconstructs the entire field of view in parallel in one go, without phase recursion and block-by-block reconstruction, so its computation time is less than half that of speckle masking. Therefore, we consider NASIR is a robust and highquality fast reconstruction method that can serve as an effective tool for data filtering and quick look.

关键词： methods:data analysis techniques:image processing Sun:chromosphere Sun:photosphere instrumentation:high angular resolution

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Highly efficient ternary organic solar cells with excellent open-circuit voltage and fill factor via precisely tuning molecular stacking and morphology

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Science China Chemistry 2024年第3期67卷 963-972页

作者： Dinghong Sun zhenyu Chen Jianfeng Zhang Wei Song jingyu Shi jintao Zhu Yuanyuan Meng Fei jin Shuncheng Yang Ziyi Ge Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo 315211China Faculty of Material Science and Chemical Engineering Ningbo UniversityNingbo 315211China Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049China Department of Chemical and Environmental Engineering University of Nottingham NingboNingbo 315100China

The micro-morphology and molecular stacking play a key role in determining the charge transport process and nonradiative energy loss, thus impacting the performances of organic solar cells(OSCs). To address this issue, a non-fullerene acceptor PhC6-IC-F with alkylbenzene side-chain, possessing optimized molecular stacking, complementary absorption spectra and forming a cascade energy level alignment in the PM6:BTP-eC9 blend, is introduced as guest acceptor to improve efficiency of ternary OSCs. The bulky phenyl in the side-chain can regulate crystallinity and optimizing phase separation between receptors in ternary blend films, resulting in the optimal phase separations in the ternary films. As a result, high efficiencies of 18.33% as photovoltaic layer are obtained for PhC6-IC-F-based ternary devices with excellent fill factor(FF) of 78.92%. Impressively, the ternary system produces a significantly improved open circuit voltage(V_(oc)) of 0.857 V compared with the binary device,contributing to the reduced density of trap states and suppressed non-radiative recombination result in lower energy loss. This work demonstrates an effective approach for adjusting the aggregation, molecular packing and fine phase separation morphology to increase V_(oc) and FF, paving the way toward high-efficiency OSCs.

关键词： alkylbenzene side-chain morphology regulation ternary blends organic solar cells

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Acupuncture with different frequencies for tobacco dependence: a randomized controlled trial

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Journal of Traditional Chinese Medicine 2024年

作者： CHEN Shumin LIU zhenyu JI Jia WANG Yingying YANG jinsheng CHANG jin LI Zhihua Institute of Acupuncture and Moxibustion， China Academy of Chinese Medical Sciences Institute of Basic Theory for Chinese Medicine， China Academy of Chinese Medical Sciences

OBJECTIVE: To observe the effect of different acupuncture frequencies on the abstinence rate which could be used as a reference for optimizing acupuncture cessation ***: From July 2018 to June 2022， a total of 220 smokers were recruited based on inclusion criteria and randomly divided into the high-frequency acupuncture group (HF group， n = 110): 5 times a week from the 1st to the 4th week， from weeks 5 to 8， three times a week and the low-frequency acupuncture group (LF group， n = 110): 3 times a week from the 1st to the 4th week， from weeks 5 to 8， twice a week， then treated for 8 weeks and follow-up at 1 month in ***: In total， 162 subjects completed the whole study with a drop-out rate of 20.45%. The expiratory CO point abstinence rate was HF group 53/110 (48.18%) vs LF group 41/110 (37.27%) in Week 8 (P = 0.102) and HF group 46/110 (41.82%) vs LF group 45/110 (40.91%) in Week 12 (P = 0.891) and the HF acupuncture and LF acupuncture were nearly equal in the 8-week abstinence rate. In addition， both HF and LF acupuncture significantly reduced Fagerstr?m test for nicotine dependence scale (FTND) scores (P < 0.05)， Minnesota nicotine withdrawal scale (MNWS) scores (P < 0.05)， and Brief Questionnaire of Smoking Urges scale (QSU-Brief) scores (P < 0.05)， but HF acupuncture showed some superiority over LF acupuncture in relieving patients' smoking cravings (P < 0.05).Conclusions: The study initially showed that both high-frequency acupuncture and low-frequency acupuncture treatment were safe and effective on smoking cessation for 8 weeks， but high-frequency acupuncture was advantageous in reducing smoking cravings. More accurate acupuncture frequency needs to be validated through larger clinical studies to optimize acupuncture smoking cessation programs.

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对迭代位移叠加像复原方法的改进

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光学学报 2009年第5期29卷 1205-1210页

作者：金振宇刘忠邱耀辉中国科学院国家天文台云南天文台云南昆明650011

迭代位移叠加法(ISA)是一种天文高分辨空域统计重建方法,对双星等多点源天文目标的空域统计重建试验表明,多点源目标的重建效果优于经典的重谱法,计算速度也比重谱法快。该方法不能直接应用于太阳或卫星等天文和空间扩展目标的高分辨重... 详细信息

迭代位移叠加法(ISA)是一种天文高分辨空域统计重建方法,对双星等多点源天文目标的空域统计重建试验表明,多点源目标的重建效果优于经典的重谱法,计算速度也比重谱法快。该方法不能直接应用于太阳或卫星等天文和空间扩展目标的高分辨重建中,因此对迭代位移叠加法进行修正后进行了不同光子水平下的人造卫星的高分辨重建的数值仿真试验。对暗弱扩展目标的仿真重建试验表明,修正的迭代位移叠加法具有明显的抑制光子噪声的效果,具有比重谱法等频域重建方法更好的重建效果。

关键词：图像处理迭代位移叠加法扩展目标数值仿真

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