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Composite structure Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG ceramics with high color spatial uniformity for white laser lighting

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Journal of Advanced Ceramics 2024年第2期13卷 189-197页

作者： Pengfei Sang le Zhang Jian Kang Mingzhou Li Shiwei Chen Peng Yang Bingheng sun Yang Li Wieslaw Strek Hao Chen Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics EngineeringJiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology Xuzhou 221400China Xuzhou EAGleD Technology Co. Ltd.Xuzhou 221116China Xuzhou Kangna Advanced Materials Technology Co. Ltd.Xuzhou 221116China Xuzhou Fuchang Electronic Technology Co. Ltd.Xuzhou 221116China Shanghai Institute of Optics Fine Mechanics Chinese Academy of SciencesShanghai 201800China School of Material Science and Engineering Shanghai Institute of TechnologyShanghai 201418China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland

Composite ceramic phosphor(CCP)is a candidate light-conversion material to obtain the high-quality laser lighting *** based on the transmissive configuration model could not simultaneously meet the requirements of angular color uniformity and high thermal *** this study,a novel composite structure ceramic was designed,including Al_(2)O_(3)-YAG:Ce/YAG layered ceramic with a size of 1 mm×1 mm for lighting,and Al_(2)O_(3) ceramic(φ=16.0 mm)was used as the wrapping material due to its outstanding thermal *** prepared ceramics exhibited excellent thermal performance and no yellow ring *** this design,we achieved the match of the intensity distribution of the blue and yellow lights,resulting in a high angular color uniformity of 0.9 with a view angle of±80°.All ceramics showed no luminous saturation phenomenon,even the laser power density was increased up to 47.51 W/mm^(2).A high-brightness white-light source with a luminous flux of 618 lm,a luminous efficiency of 126 lm/W,a CCT of 6615 K,and a CRI of 69.9 was obtained in the transmissive *** particular,the surface temperature of the ceramic was as low as 74.1℃ under a high laser radiation(47.51 W/mm^(2)).These results indicate that Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG composite structure ceramic is a promising luminescent material in the high-power laser lighting applications.

关键词： Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG angular color uniformity high thermal stability high-power laser lighting

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The trxG protein ULT1 regulates Arabidopsis organ size by interacting with TCP14/15 to antagonize the LIM peptidase DA1 for H3K4me3 on target genes

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Plant Communications 2024年第4期5卷 255-274页

作者： Fan Xu Huixue Dong Weijun Guo Liang le Yexing Jing Jennifer C.Fletcher Jiaqiang sun Li Pu Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Department of Plant and Microbial Biology University of CaliforniaBerkeleyBerkeleyCA 94720USA Plant Gene Expression Center United States Department of Agriculture-Agricultural Research ServiceAlbanyCA 94710USA These authors contributed equally to this article

Plant organ size is an important agronomic trait that makes a significant contribution to plant *** its central importance,the genetic and molecular mechanisms underlying organ size control remain to be fully ***,we report that the trithorax group protein ULTRAPETALA1(ULT1)interacts with the TEOSINTE BRANCHED1/CYCLOIDEA/PCF14/15(TCP14/15)transcription factors by antagonizing the LIN-11,ISL-1,and MEC-3(LIM)peptidase DA1,thereby regulating organ size in *** of ULT1 function significantly increases rosette leaf,petal,silique,and seed size,whereas overexpression of ULT1 results in reduced organ ***1 associates with TCP14 and TCP15 to co-regulate cell size by affecting cellular *** analysis revealed that ULT1 and TCP14/15 regulate common target genes involved in endoreduplication and leaf ***1 can be recruited by TCP14/15 to promote lysine 4 of histone H3 trimethylation at target genes,activating their expression to determinefinal cell ***,we found that ULT1 influences the interaction of DA1 and TCP14/15 and antagonizes the effect of DA1 on TCP14/15 ***,ourfindings reveal a novel epigenetic mechanism underlying the regulation of organ size in Arabidopsis.

关键词： ULT1 TCP DA1 organ size endoreduplication

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XML数据查询中值匹配查询代价估计算法

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软件学报 2005年第4期16卷 561-569页

作者：曲卫民孙乐孙玉芳中国科学院软件研究所系统软件与中文信息中心北京100080

XML数据查询中值匹配查询条件的查询代价估计问题是一种典型的多元素查询条件代价估计问题.它与传统关系型数据库中的多元素查询条件不同,因为XML数据中的值信息分布不仅与其他值信息分布相关,还与XML数据中的结构信息相关,而且当XML数... 详细信息

XML数据查询中值匹配查询条件的查询代价估计问题是一种典型的多元素查询条件代价估计问题.它与传统关系型数据库中的多元素查询条件不同,因为XML数据中的值信息分布不仅与其他值信息分布相关,还与XML数据中的结构信息相关,而且当XML数据结构比较复杂时,可能会形成高维元素相关.针对以上问题,提出了一种面向XML数据的基于小波的多维直方图查询代价估计算法,并提出了确定XML数据中以某值元素为主键的相互依赖元组的方法,将值匹配条件改写为多元素查询条件的方法以及结构信息的值化方法.实验结果证明,提出的方法取得了较准确的查询代价估计结果.

关键词： XML 值匹配条件查询代价估计

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An integrated environmental improvement of marshlands:impact on control and elimination of schistosomiasis in marshland regions along the Yangtze River,China

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Infectious Diseases of Poverty 2017年第1期6卷 624-633页

作者： le-Ping sun Wei Wang Yin-Ping Zuo Zheng-Qiu Zhang Qing-Biao Hong Guo-Jing Yang Hong-Ru Zhu You-Sheng Liang Hai-Tao Yang Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention No.117 YangxiangMeiyuanWuxi CityJiangsu Province 214064China Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology No.117 YangxiangMeiyuanWuxi CityJiangsu Province 214064China Jiangsu Institute of Parasitic Diseases No.117 YangxiangMeiyuanWuxi CityJiangsu Province 214064China Yangzhou Municipal Center for Disease Control and Prevention No.36 Yanfu East RoadYangzhou CityJiangsu Province 225000China Yizheng County Center for Disease Control and Prevention NO.1 Jiankang RoadYangzhou CityJiangsu Province 211440China

Background:Schistosomiasis is a global snail-transmitted infectious disease of *** control had been achieved in China in 2015 after the control efforts for over 60 ***,the remaining core regions endemic for Schistosoma japonicum are mainly located in the marshland and lake regions along the Yangtze River ***:During the period from 2001 through 2015,an integrated environmental improvement of the marshlands was carried out through the implementation of industrial,agricultural and resources development projects in Yizheng County along the Yangtze *** infection in humans,livestock and snails was estimated by serology,stool examination,hatching technique and microscopy during the 15-year study period to evaluate the effect of the integrated environmental improvement on control and elimination of ***:A 0.05%overall rate of *** infection was observed in snails during the 15-year study period,and no infected snails were detected since *** overall prevalence of *** infection was 0.09%in humans during the study period,and no human infection was found since *** addition,only 13 bovines were identified with *** infection in 2003 during the 15-year study period,and since 2004,no infection was found in ***:The results of the present study demonstrate that the implementation of industrial,agricultural and water resources development projects,not only alters snail habitats in marshland regions,and promotes local economic development,which appears a win-to-win strategy to block the transmission of *** and accelerate socio-economic development along the Yangtze River.

关键词： Schistosomiasis Oncomelania hupensis Environmental improvement Marshland regions Yangtze River basin China

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NEURAL STEM CELL AND NEUROGENESIS IN THE EMBRYONIC NEOCORTEX

NEURAL STEM CELL AND NEUROGENESIS IN THE EMBRYONIC NEOCORTEX

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第二届全国发育生物学大会

作者： Rui Li Qian Wu le sun Xiaoqun Wang Institute of Biophysics Chinese Academic of Science

A hallmark of mammalian brain evolution is cortical expansion,which reflects an increase in the number of cortical *** development,this is established by the type of progenitor cells present in embryonic brain and in the number of neurogenic divisions they *** cells generate intermediate progenitor(IP)cells that migrate to the subventricular zone(SVZ)where they proliferate to increase neuron number in developing rodent *** the primate brain,the outer region of the SVZ(OSVZ)is massively *** studies revealed a new

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Time-change Reliability Assessment and Analysis of Cryogenic Pneumatic Valve Based on Dynamic Bayesian Network Theory

Time-change Reliability Assessment and Analysis of Cryogenic...

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作者： Yongtao Qin le sun Liping Tang Jianfang Wang The 165

In order to fully identify the root cause of cryogenic pneumatic valve failure in the process of liquid rocket engine test,and to analyze the dynamic time change of the process of cryogenic pneumatic valve reliability analysis,this paper first analyzes the failure factors of low temperature pneumatic valve in the test process of liquid rocket engine according to the human-machine environment system *** introducing the dynamic Bayesian network theory,and by means of analyzing the time-change failure failure mode of cryogenic pneumatic valve,constructing the time-change reliability model of cryogenic pneumatic valve was constructed in the test process of liquid rocket engine,and the reliability growth technology of cryogenic pneumatic valve was researched by the optimal failure search ***,the validity and accuracy of this method are verified by the *** method can provide a method guide for quantitative analysis and improvement of the reliability of cryogenic pneumatic valve,and provide support for the accurate and objective evaluation and development of liquid rocket engine performance.

关键词： Dynamic Bayesian network Cryogenic pneumatic valves Reliability

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Can urban forests provide acoustic refuges for birds?Investigating the influence of vegetation structure and anthropogenic noise on bird sound diversity

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Journal of Forestry Research 2024年第2期35卷 163-175页

作者： Zezhou Hao Chengyun Zhang le Li Bing sun Shuixing Luo Juyang Liao Qingfei Wang Ruichen Wu Xinhui Xu Christopher A.lepczyk Nancai Pei Research Institute of Tropical Forestry Chinese Academy of ForestryGuangzhou 510520People’s Republic of China School of Electronics and Communication Engineering Guangzhou UniversityGuangzhou 510006People’s Republic of China Hunan Botanical Barden Changsha 410116People’s Republic of China Guangdong Eco-Engineering Polytechnic Guangzhou 510520People’s Republic of China College of Forestry Wildlife and EnvironmentAuburn UniversityAuburnAL 36849USA

As a crucial component of terrestrial ecosystems,urban forests play a pivotal role in protecting urban biodiversity by providing suitable habitats for acoustic *** studies note that vegetation structure is a key factor influencing bird sounds in urban forests;hence,adjusting the frequency composition may be a strategy for birds to avoid anthropogenic noise to mask their ***,it is unknown whether the response mechanisms of bird vocalizations to vegetation structure remain consistent despite being impacted by anthropogenic *** was hypothesized that anthropogenic noise in urban forests occupies the low-frequency space of bird songs,leading to a possible reshaping of the acoustic niches of forests,and the vegetation structure of urban forests is the critical factor that shapes the acoustic space for bird *** acoustic monitoring in various urban forests was used to monitor natural and anthropogenic noises,and sounds were classified into three acoustic scenes(bird sounds,human sounds,and bird-human sounds)to determine interconnections between bird sounds,anthropogenic noise,and vegetation *** noise altered the acoustic niche of urban forests by intruding into the low-frequency space used by birds,and vegetation structures related to volume(trunk volume and branch volume)and density(number of branches and leaf area index)significantly impact the diversity of bird *** findings indicate that the response to low and high frequency signals to vegetation structure is *** clarifying this relationship,our results contribute to understanding of how vegetation structure influences bird sounds in urban forests impacted by anthropogenic noise.

关键词： Anthropogenic noise Bird sounds Urban forests Vegetation structure

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普惠金融对农户宅基地退出行为的影响——基于成都市试点区域401份农户样本

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资源科学 2021年第11期43卷 2342-2355页

作者：孙乐苑韶峰朱从谋浙江工商大学金融学院杭州310018 浙江工商大学公共管理学院杭州310018 浙江大学环境与资源学院杭州310058

研究普惠金融对农户宅基地退出行为的影响对于推进农村宅基地制度改革和促进乡村振兴具有重要意义。本文基于四川省成都市典型区域401份农户调查数据,采用因子分析法构建了微观层面的农村家庭普惠金融指数,运用Probit模型分析了普惠金... 详细信息

研究普惠金融对农户宅基地退出行为的影响对于推进农村宅基地制度改革和促进乡村振兴具有重要意义。本文基于四川省成都市典型区域401份农户调查数据,采用因子分析法构建了微观层面的农村家庭普惠金融指数,运用Probit模型分析了普惠金融对农户宅基地退出行为的影响,探索了风险预期在影响中的中介作用,并进一步分析其影响的代际差异。结果表明:①普惠金融对农户宅基地退出行为具有显著的正向影响;②普惠金融通过中介变量风险预期间接影响农户宅基地退出行为,风险预期的中介效应占总效应的比例为17%;③新生代农户和老一代农户家庭层面的普惠金融对其宅基地退出行为都有显著的正向影响,但两者之间未发现存在明显的代际差异。本文认为,应基于家庭金融需求和供给双层面加大农村金融支持力度,提升农村普惠金融水平;引导农户形成合理的宅基地退出风险认知,并制定针对性的措施降低农户风险预期;加强政策引导,实现不同代际农户的金融知识共享,推动宅基地有序退出。

关键词：普惠金融风险预期农户宅基地退出 Probit模型因子分析法成都市

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Ferroptosis in cancer: From molecular mechanisms to therapeutic strategies

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1359-1388页

作者： Qian Zhou Yu Meng Daishi Li lei Yao Jiayuan le Yihuang Liu Yuming sun Furong Zeng Xiang Chen Guangtong Deng Department of Dermatology Xiangya HospitalCentral South University87 Xiangya RoadChangsha 410008 Hunan ProvinceChina National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology 87 Xiangya RoadChangsha 410008 Hunan ProvinceChina Furong Laboratory 87 Xiangya RoadChangsha 410008 Hunan ProvinceChina Hunan Key Laboratory of Skin Cancer and Psoriasis Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South University87 Xiangya RoadChangsha 410008 Hunan ProvinceChina National Clinical Research Center for Geriatric Disorders Xiangya Hospital87 Xiangya RoadChangsha 410008 Hunan ProvinceChina Department of General Surgery Xiangya HospitalCentral South University87 Xiangya RoadChangsha 410008 Hunan ProvinceChina Department of Plastic and Cosmetic Surgery Xiangya HospitalCentral South University87 Xiangya RoadChangsha 410008 Hunan ProvinceChina Department of Oncology Xiangya HospitalCentral South University87Xiangya RoadChangsha 410008Hunan ProvinceChina

Ferroptosis is a non-apoptotic form of regulated cell death characterized by the lethal accumulation of iron-dependent membranelocalized lipid *** acts as an innate tumor suppressor mechanism and participates in the biological processes of ***,mesenchymal and dedifferentiated cancer cells,which are usually resistant to apoptosis and traditional therapies,are exquisitely vulnerable to ferroptosis,further underscoring its potential as a treatment approach for cancers,especially for refractory ***,the impact of ferroptosis on cancer extends beyond its direct cytotoxic effect on tumor *** induction not only inhibits cancer but also promotes cancer development due to its potential negative impact on anticancer ***,a comprehensive understanding of the role of ferroptosis in cancer is crucial for the successful translation of ferroptosis therapy from the laboratory to clinical *** this review,we provide an overview of the recent advancements in understanding ferroptosis in cancer,covering molecular mechanisms,biological functions,regulatory pathways,and interactions with the tumor *** also summarize the potential applications of ferroptosis induction in immunotherapy,radiotherapy,and systemic therapy,as well as ferroptosis inhibition for cancer treatment in various *** finally discuss ferroptosis markers,the current challenges and future directions of ferroptosis in the treatment of cancer.

关键词： cancer mechanisms treatment

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社区公共设施适老化设计研究

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包装工程 2023年第14期44卷 432-435页

作者：孙乐郑州工业应用技术学院郑州451100

目的找到社区公共设施适老化设计的策略,促进社区公共设施更好地满足老年人的使用需求,为老年人的活动和行为提供方便。方法罗列社区公共设施分类,发现并提出每一类公共设施中存在的问题,对问题进行分析,有针对性地进行解决,改进公共... 详细信息

目的找到社区公共设施适老化设计的策略,促进社区公共设施更好地满足老年人的使用需求,为老年人的活动和行为提供方便。方法罗列社区公共设施分类,发现并提出每一类公共设施中存在的问题,对问题进行分析,有针对性地进行解决,改进公共设施适老化设计情况。结论社会老龄化趋势呼吁设计者更多地从老年群体的视角出发,设计符合老年用户需求的产品,只有真正从老年人本身出发,设计符合他们需求的公共设施,才能提高老年用户使用的体验感和幸福感。

关键词：社区公共设施适老化设计用户需求用户体验

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