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Role of Yttrium in Thermoluminescence of LYSO:Ce Crystals

JOURNAL OF PHYSICAL CHEMISTRY C 2020年第32期124卷 17726-17732页

作者： Chen, Lu Ding, Dongzhou Fasoli, Mauro Wang, Tiantian Chen, Xiaopu zhao, shuwen Chen, Jie Sun, Yiyang Li, Jiang Wu, Yuntao Feng, He Chinese Acad Sci Shanghai Inst Ceram Shanghai 201899 Peoples R China Shanghai Univ Sch Mat Sci & Engn Shanghai 200444 Peoples R China Univ Milano Bicocca Dept Mat Sci I-20125 Milan Italy Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China R&D Ctr Shanghai Inst Ceram Shanghai 201899 Peoples R China

This paper presents a detailed study of the influence of yttrium (Y) concentration on thermally stimulated luminescence (TSL) of LYSO:Ce crystals and establishes the relationship between electron traps and scintillation properties. With the increase of Y concentration, the glow curve shifts toward higher temperatures and the trap depth increases gradually. Our results revealed two groups of electron traps with one shallow (E-t approximate to 0.10-0.26 eV) and one deep (E-t approximate to 1.00-1.21 eV). Our TSL results suggest that the amount of shallow traps varied with Y content has a positive correlation with energy resolution, while the amount of deep traps is inversely proportional to light output. In order to analyze the variation trend of trap depths and their mechanism in detail, we calculated the band gap with the PBE functional and VUV excitation spectra. The results show that the increase of band gap possibly leads to the increase of deep electron trap depth.

关键词： Crystals Light Electrical conductivity Order Kinetics

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Fast Reinforcement Learning for Resource Optimization in Dynamic Vehicular Communications

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IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 2025年第5期26卷 6304-6320页

作者： Jiang, shuwen Li, Bin zhao, Chenglin Beijing Univ Posts & Telecommun Sch Informat & Commun Engn Beijing 100876 Peoples R China Beijing Inst Technol Sch Informat & Elect Beijing 100081 Peoples R China

In recent years, vehicular communications have attached great interests in both academy and industry for its potential of promoting safety and autonomous driving. Unlike classical communication scenarios, in vehicular communications the optimal resource allocation must be accomplished in a real-time manner, in order to maximally reduce the response delay. This presents a substantial challenge for current machine learning based intelligent resource optimization methods which may be sample inefficient, especially when the problem space becomes extremely huge. In this study, we develop a fast reinforcement learning (RL) framework for the real-time resource optimization of vehicular communications, whereby the transmitting power and the accessing frequency channels need to be jointly allocated. The main concept of our new method is that it incorporates a sample efficient structured exploration mechanism in the action space, which firstly ignores the local exploitation but focuses on a randomized global exploration. Thus, our exploration-first method, in contrast to classical exploitation-first RL, can reconstruct the coarse-grained global landscape of a huge Q-table from only the few samples. This learned prior knowledge would remarkably accelerate the convergence of subsequent incremental learning process, by concentrating on the identified attentional subspace of the Q-table. As demonstrated by numerical results, our new method would reduce the time complexity or the response delay by around 10 folds. As such, our fast RL method would have the great potential to such challenging optimization problems whereby the acquisition of massive training samples is time demanding, which hence provides the great promise to the emerging vehicular networks.

关键词： Resource management Optimization methods Real-time systems Q-learning Information exchange Vehicle-to-infrastructure Vehicle dynamics OFDM Interference Dynamic scheduling Vehicular communications resource allocation fast reinforcement learning Structured exploration online prior knowledge learning

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Thermal management for EV power batteries based on INFO-ADRC algorithm

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INTERNATIONAL JOURNAL OF GREEN ENERGY 2025年

作者： Zhou, shuwen zhao, Siwen Duan, Xinrui Northeastern Univ Sch Mech Engn & Automat Shenyang 110819 Liaoning Peoples R China

During high-rate discharge, power batteries generate a considerable amount of heat. If this thermal energy is not dissipated effectively, the resulting rapid temperature rise can significantly impact the operational lifespan of the battery. Consequently, building a thermal control system that can keep the battery temperature status in an acceptable range and increase the homogeneity is vital. To this purpose, this study proposes an ADRC method that combines a BP neural network and an INFO algorithm to regulate the temperature environment suitable for the battery cluster's operation. The findings confirm the capability of the optimization algorithm to effectively reduce the battery's temperature fluctuation under different operating conditions. After optimization, the total temperature variation decreases by over 24%. In addition, INFO-ADRC technology meets the current requirements of the electric vehicle industry by keeping peak temperature deviations within 1 degrees C within the battery clusters.

关键词： Battery thermal management system Liquid-cooled thermal model BP neural network INFO algorithm ADRC

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文成县老年人失能发生现状及影响因素研究

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实用预防医学 2024年第4期31卷 411-414页

作者：张大聪刘金源周海珍赵淑雯李绍飞文成县疾病预防控制中心浙江文成325300 文成县大峃镇卫生院浙江文成325300

目的调查文成县老年人失能发生现状,分析其影响因素,为卫生健康部门研究制定老年人失能早期预防及干预管理策略提供依据。方法采用多阶段整群随机抽样方法,于2022年1—10月,调查文成县20个农村社区的705名老年人基本人口学特征、失能情... 详细信息

目的调查文成县老年人失能发生现状,分析其影响因素,为卫生健康部门研究制定老年人失能早期预防及干预管理策略提供依据。方法采用多阶段整群随机抽样方法,于2022年1—10月,调查文成县20个农村社区的705名老年人基本人口学特征、失能情况、健康状况、社会支持等情况,采用Pearson χ^(2)检验,多因素logistic回归模型分析老年人失能影响因素。结果文成县≥60岁老年人失能发生率为24.40%,其中轻度失能者占比最高,为82.56%。年龄≥80岁(OR=1.923,95%CI:1.083~3.416)、自评健康状况非常好/较好(OR=0.568,95%CI:0.380~0.849)、罹患慢性病数量(OR=1.980,95%CI:1.070~3.665)、近一年住院次数(OR=2.657,95%CI:1.713~4.120)及获得社会支持程度高(OR=0.451,95%CI:0.281~0.723)是老年人失能发生的影响因素。结论文成县≥60岁老年人失能发生率相对较高,但以轻度为主,卫生健康部门应进一步完善老年人失能预防及干预网络,重点针对高龄、慢病患病数多、健康状况不稳定、社会支持度低的老年人开展老年人失能风险评估,及早识别失能风险,尽早开展健康干预健康教育,提高老年人健康水平。

关键词：老年人失能发生率影响因素

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裕华钢铁应对新形势下原燃料劣化生产实践

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甘肃冶金 2025年第1期47卷 36-38,43页

作者：张计斌李红兵赵淑文曹卫强李洪波武安市裕华钢铁有限公司河北邯郸056300 河北省冷成型用钢技术创新中心河北邯郸056300

面对钢铁行业严峻的市场形势,钢铁企业极力降低生产成本以求得生存空间,铁前成本占到整个钢铁成本的70%以上,降低原燃料成本是最为快捷的一项措施,采用低成本原料成为了各钢铁企业的首选。面对原燃料条件的大幅度劣化,裕华钢铁炼铁厂积... 详细信息

面对钢铁行业严峻的市场形势,钢铁企业极力降低生产成本以求得生存空间,铁前成本占到整个钢铁成本的70%以上,降低原燃料成本是最为快捷的一项措施,采用低成本原料成为了各钢铁企业的首选。面对原燃料条件的大幅度劣化,裕华钢铁炼铁厂积极应对,通过采取强化烧结矿管理、优化入炉原燃料、改进炉内和炉外操作制度,保证了高炉稳定、高效、低耗顺行。

关键词：原燃料劣化经济料烧结矿管理库存管理

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Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties

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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021年 228卷 112999-112999页

作者： Qin, Luyao Wang, Meng zhao, shuwen Li, Shanshan Lei, Xiaoqin Wang, Lifu Sun, Xiaoyi Chen, Shibao Chinese Acad Agr Sci Inst Agr Resources & Reg Planning Beijing 100081 Peoples R China

Currently, the scientific basis for establishing soil environmental criteria is lacking. In order to establish reasonable soil environmental criteria values suitable for soils with different properties, this study selected soils from 16 different sites to determine the toxicity threshold of Zn based on toxicity tests of barley root elongation. In addition, leaching treatments were set up in seven soils with different properties to eliminate the influence of the accompanying anions (Cl-) on the determination of the Zn toxicity threshold. The results indicated that the toxicity thresholds of different soils vary greatly. The EC10 and EC50 ranges of barley root elongation in 16 kinds of non-leached soils were 18.5 mg kg- 1 to 1618.7 mg kg- 1 and 277.9 mg kg- 1 to 3179.8 mg kg- 1, respectively. The hormesis effect appeared in the dose response of Zn, and relative barley root elongation reached more than 150%. Leaching significantly reduced the Zn toxicity in acidic soils. The variation ranges of the leaching factor (LF) in the seven soils were LF10 = 1.1-9.3, LF50 = 1.0-3.2. The LF prediction model indicated that pH explained 81.4% of the LF variation (p < 0.01). The soil pH, cation exchange capacity (CEC), and conductivity (EC) explained 97.8% of the EC50 variation in the leached soil (p < 0.01). The results provide reference values for Zn environmental criteria.

关键词： Zn Soil leaching Dose-response Toxicity threshold Hormesis

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汽轮机外缸尺寸气刨方法的研究及应用

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中国铸造装备与技术 2023年第2期58卷 31-33页

作者：马瑞王文宝赵树文李永辉共享铸钢有限公司宁夏银川750021

通过测量汽轮机外缸尺寸,按图纸公差需求,提出尺寸气刨控制方法及流程,针对大面积气刨难点专项控制,对尺寸检测和气刨方法改进,利用网格式测量,优化气刨流程,提供一种新的气刨返修操作方法和尺寸检测方法,使铸件一次处理合格,减少反复... 详细信息

通过测量汽轮机外缸尺寸,按图纸公差需求,提出尺寸气刨控制方法及流程,针对大面积气刨难点专项控制,对尺寸检测和气刨方法改进,利用网格式测量,优化气刨流程,提供一种新的气刨返修操作方法和尺寸检测方法,使铸件一次处理合格,减少反复气刨、铲磨、吊运、尺寸测量次数,提高生产效率,降低成本。

关键词：汽轮机外缸尺寸精度网格基准坑卡板

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Mediating Mendelian randomization in the proteome identified potential drug targets for obesity-related allergic asthma

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HEREDITAS 2025年第1期162卷 1-10页

作者： Lin, Jiannan Lu, shuwen zhao, Xiaoyu Jiaxing Second Hosp Dept Pediat Jiaxing 314000 Peoples R China

BackgroundWith the development of the economy, the number of obese patients has been increasing annually worldwide. The proportion of asthma patients associated with obesity is also gradually rising. However, the pathogenesis of obesity-related asthma remains incompletely understood, and conventional pharmacological treatments generally show limited *** study aims to explore the causal relationship between obesity and allergic asthma, elucidate the pathogenesis of obesity-related asthma, and identify the plasma proteins involved in its development, providing new insights for clinical *** this study, we employed a two-step approach for mediation Mendelian randomization (MR) analysis, utilizing stringent selection criteria to identify instrumental variables (IVs). This approach was used to assess the causal impact of obesity on allergic asthma and to validate the plasma proteins identified as mediating factors. We further explored the functions and enriched pathways of the mediating proteins using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Finally, we conducted drug-targeted MR analysis to evaluate the potential of each mediator plasma proteins as a drug target gene. If significant heterogeneity remained among the IVs, we applied the weighted median method as the primary analytical tool. Otherwise, we utilized the inverse variance weighted (IVW) method as the main analytical approach. Additionally, we conducted various sensitivity analyses and statistical tests to further illustrate the robustness of the observed *** research findings indicate a causal relationship between obesity and allergic asthma. Plasma proteins such as TPST1, ROR1, and DAPK1 mediate this relationship, with TPST1 accounting for over 10% of the mediation effect. GO and KEGG analyses show that the genes corresponding to these mediator proteins are primarily enriched in pathways related to responses to st

关键词： Allergic asthma Obesity-related asthma Plasma proteins Mendelian randomization analysis

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Microphysical Responses to Cloud Seeding: Insights From Observation-Validated Simulations

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Geophysical Research Letters 2025年第12期52卷

作者： Shaofeng Hua Baojun Chen Lulin Xue Zhiguo Yue Weiguo Liu Jing Yang Haohao Nie shuwen zhao CMA Key Laboratory of Cloud-Precipitation Physics and Weather Modification Beijing China CMA Weather Modification Centre Beijing China Research Applications Laboratory NSF National Center for Atmospheric Research Boulder CO USA Center of Weather Modification of Shaanxi Province Xi'an China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD)/Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration Nanjing University of Information Science & Technology Nanjing China Tianjin Weather Modification Office Tianjin China

Cloud seeding models are essential for understanding seeding mechanisms, yet their reliability remains insufficiently verified due to limited cases with confirmed seeding effects. On 19 March 2017, significant seeding signals were observed by multiple instruments following airborne cloud seeding over a stratiform cloud system with abundant supercooled water in northern China. This study performed an ensemble simulation of the case using two cloud microphysics schemes and three silver iodide (AgI) nucleation parameterizations, successfully replicating the vertical structure and evolution of the seeding-induced cloud. The simulated seeding impact area, precipitation intensity, and changes in raindrop spectra closely aligned with observations. Results indicate that cloud seeding increased ice crystal amounts primarily through the deposition nucleation of AgI particles, activated the auto-conversion of ice crystals to snow, enhanced snow deposition and riming processes, and ultimately increased surface precipitation through enhanced snow melting. An ensemble of simulation was conducted to simulate a cloud seeding case with clear and distinct seeding signals in China All the simulations successfully replicate the structure and evolution of seeding-induced cloud, surface rainfall and raindrop spectra Seeding enhanced ice deposition, ice-to-snow conversion, snow deposition and riming processes, ultimately increasing precipitation Cloud seeding models are used to estimate seeding effects and study seeding mechanisms, but their reliability has not been well validated against observations. This research evaluated the performance of a cloud seeding model using data from a case where the seeding effect was unambiguously confirmed by observations. The ensemble simulation results demonstrate that the model successfully replicates the evolution of the observed seeding-induced radar echoes, changes in surface precipitation and raindrop spectra. The microphysical responses to cloud

关键词： cloud seeding numerical simulation stratiform cloud radar

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生物炭对基质栽培黄瓜根际养分与真菌丰度的影响

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分子植物育种 2022年第8期20卷 2773-2780页

作者：胡云马建华李明赵淑文刘利平刘宏武内蒙古农业大学职业技术学院包头014109 鄂尔多斯市国有林场和森林公园管理局鄂尔多斯017000 莫力达瓦达斡尔族自治旗农畜产品质量安全中心呼伦贝尔162850

在中国设施土壤环境不断恶化背景下,无土基质栽培方式成为设施蔬菜可持续发展的重要途径,生物炭对设施栽培无土基质根系生态环境具有明显效果。本试验以设施黄瓜为研究对象,采用无土基质栽培模式,添加生物炭改良根际小生态环境,以两种... 详细信息

在中国设施土壤环境不断恶化背景下,无土基质栽培方式成为设施蔬菜可持续发展的重要途径,生物炭对设施栽培无土基质根系生态环境具有明显效果。本试验以设施黄瓜为研究对象,采用无土基质栽培模式,添加生物炭改良根际小生态环境,以两种基质添加与不添加生物炭为处理,研究生物炭设施基质栽培黄瓜根际养分以及真菌群落结构的变化规律,探明生物炭与基质对黄瓜根际养分和真菌菌群结构变化及其互作机制。试验结果表明,进口基质、进口基质并添加生物炭和国产基质的栽培方法,可分别显著提高黄瓜根际土壤速效钾质量比为70.95%、37.80%和30.78%,两种基质均可提高过氧化氢酶10.00%。国产基质和国产基质添加生物炭处理可明显提高黄瓜根际担子菌门比例而降低子囊菌门比例,明显提高伞菌纲比例而降低粪壳纲比例,明显提高伞菌目比例而降低肉座菌目比例,明显提高粪伞科比例,进口基质和进口基质并添加生物炭处理可明显提高粪壳纲比例、毛球壳科比例、目梨孢假壳科比例。基质与生物炭可增加黄瓜根际酶的活性,促进黄瓜根际速效磷、速效钾、碱解氮、有机质的质量比提升,最终促进黄瓜生长和产量提高。

关键词：设施黄瓜生物炭基质栽培根际养分真菌群落

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