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Chinese Journal of Chemistry 2024年第16期42卷 1828-1832页

作者： Lingzi zhao xuchao Wang Qing Qiang Xingwei zhao Feipeng Liu Shenci Lu Zi-Qiang Rong Frontiers Science Center for Flexible Electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SiFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Polytechnical University(NPU)127 West Youyi RoadXianShaanxi 710072China Honors College Northwestern Polytechnical University(NPU)127 West Youyi RoadXi'anShaanxi 710072China

An asymmetric isomerization/intramolecular coupling reaction of allylic alcohols to synthesize chiral dihydrocoumarins was successfully accomplished through ruthenium *** method demonstrates a wide substrate applicability,excellent tolerance for various functional groups,and good enantioselectivities(up to 90%ee).It provides a convenient pathway to produce a diverse range ofstructurallydistinct chiral dihydrocoumarins ingoodefficiency.

关键词： Ruthenium catalysis Asymmetric isomerization Tandem reaction Chiral dihydrocoumarins Enantioselectivity

Amplified spontaneous emission at the band edges of Ag-coated Al nanocone array

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Photonics Research 2023年第12期11卷 2202-2209页

作者： YE XIANG YONGPING ZHAI JIAZHI YUAN KE REN xuchao zhao DONGDA WU JUNQIAO LA YI WANG WENXIN WANG College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China College of Physics and Optoelectronic Engineering Harbin Engineering UniversityHarbin 150001China Qingdao Innovation and Development Center of Harbin Engineering University Harbin Engineering UniversityQingdao 266500China

Surface lattice resonances(SLRs)with ultra-narrow linewidth(high quality factor)can enhance light–matter interactions at the nanoscale and modulate the propagating light from the emission wavelength direction to efficiency by photonic band ***,SLRs can serve as an excited candidate to enhance and,more importantly,modulate amplified spontaneous emission(ASE)with more optical ***,this work presents a system of two-dimensional Ag-coated Al nanocone array(Ag-NCA)packaged with Nile red,and a normal ASE with 15-fold enhancement is observed under external driving *** enhancement fades away,obviously,in the case of the off-normal condition,as the optical feedback evolves from the band edge steady state to the propagating *** ASE of this hybrid plasmonic system expands the possibilities of interaction between light and matter and has great promise for applications in nanolasing,super-resolution imaging,and photonic integration circuits.

关键词： band lasing driving

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粤北过山瑶“挂灯”仪式音乐调查研究

黄钟（武汉音乐学院学报） 2020年第2期 78-92,166页

作者：赵旭超韶关学院音乐与舞蹈学院韶关512005

粤北瑶族挂灯仪式音乐是南岭少数民族原始宗教音乐的典范,文章以粤北乳源县必背镇南坑口村过山瑶挂灯仪式为切入点,将挂灯仪式音乐和程序内容相结合,考察挂灯仪式音声运用情况,分析唱诵调及吹打乐的音乐特点,探讨地理环境与文化渊源对... 详细信息

粤北瑶族挂灯仪式音乐是南岭少数民族原始宗教音乐的典范,文章以粤北乳源县必背镇南坑口村过山瑶挂灯仪式为切入点,将挂灯仪式音乐和程序内容相结合,考察挂灯仪式音声运用情况,分析唱诵调及吹打乐的音乐特点,探讨地理环境与文化渊源对仪式音乐的影响,展示了粤北过山瑶挂灯仪式音乐属于中国南部音乐区,具有自由山地民族的风格特点。

关键词：粤北过山瑶挂灯仪式唱诵调吹打乐

STARDUST INVESTIGATION INTO THE CR CHONDRITE GROVE MOUNTAIN 021710

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Modifying temperature-related cardiovascular mortality through green-blue space exposure

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： xuchao zhao CIIRISTINE FLOSS YANGTING LIN MAITRAYEE BOSE Key Laboratory of the Earth's Deep Interior Institute of Geology and GeophysicsChinese Academy of Sciences Laboratory for Space Sciences and Physics Department Washington UniversityOne Brookings DriveSt.LouisMO 63130USA Department of Chemistry and Biochemistry Arizona State UniversityP.O.Box 871604TempeAZ 85287USA

We report the presolar grain inventory of the CR chondrite Grove Mountain 021710.A total of 35 C-anomalous grains(～236 ppm) and 112 O-anomalous grains(～189 ppm) were identified in situ using NanoSIMS ion imaging. Of 35 C-anomalous grains,28 were determined to be SiC grains by Auger *** of the SiC grains were subsequently measured for N and Si isotopes,allowing classification as one nova grain,one Y grain,one Z grain,and four mainstream ***-nine out of 112 O-anomalous grains belong to Group 1,indicating origins in low-to-intermediate-mass red giant and asymptotic giant branch ***-one are Group 4 grains and have origins in *** spectroscopic elemental measurements of 35 O-anomalous grains show that 33 of them are ferromagnesian *** have higher Mg/(Mg+Fe) ratios than those reported in other meteorites, suggesting a lower degree of alteration in the nebula and/or asteroid parent *** two oxide grains were identified,with stoichiometric compositions of MgAlO and SiO,*** presolar silicate/oxide ratio of GRV 021710 is comparable with those of the CR3 chondrites(QUE 99177 and MET 00426) and primitive interplanetary dust *** order to search for presolar sulfides,the meteorite was also mapped for S isotopes. However,no presolar sulfides were found,suggesting a maximum abundance of 2 *** scarcity of presolar sulfides may be due to their much faster sputtering rate by cosmic rays compared to silicates.

关键词： astrochemistry-circumstellar matter-novae cataclysmic variables-nuclear reactions nucleosynthesis abundances-stars:winds outflows-supernovae:general

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Environmental Science and Ecotechnology 2024年第4期20卷 269-277页

作者： Kejia Hu Shiyi Wang Fangrong Fei Jinglu Song Feng Chen Qi zhao Yujie Shen Jingqiao Fu Yunquan Zhang Jian Cheng Jieming Zhong xuchao Yang Jiayu Wu School of Public Health Zhejiang UniversityHangzhou310058China Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province Hangzhou310058China College of Agriculture and Biotechnology Zhejiang UniversityHangzhou310058China Zhejiang Provincial Center for Disease Control and Prevention Hangzhou310051China Department of Urban Planning and Design Xi'an Jiaotong-Liverpool UniversitySuzhou215123China Zhejiang Institute of Meteorological Sciences Hangzhou310008China School of Public Health Shandong UniversityJinan250012China Ocean College Zhejiang UniversityZhoushan316021China School of Public Health Wuhan University of Science and TechnologyWuhan430065China School of Public Health Anhui Medical UniversityHefei230032China

Green-blue spaces(GBS)are pivotal in mitigating thermal ***,their management lacks guidelines rooted in epidemiological evidence for specific planning and *** we show how various GBS types modify the link between non-optimal temperatures and cardiovascular mortality across different thermal *** merged fine-scale population density and GBS data to create novel GBS exposure index.A case time series approach was employed to analyse temperature-cardiovascular mortality association and the effect modifications of type-specific GBSs across 1085 subdistricts in south-eastern *** findings indicate that both green and blue spaces may significantly reduce high-temperature-related cardiovascular mortality risks(e.g.,for low(5%)***(95%)level of overall green spaces at 99th *** mortality temperature(MMT),Ratio of relative risk(RRR)=1.14(95%CI:1.07,1.21);for overall blue spaces,RRR=1.20(95%CI:1.12,1.29)),while specific blue space types offer protection against cold temperatures(e.g.,for the rivers at 1st vs MMT,RRR=1.17(95%CI:1.07,1.28)).Notably,forests,parks,nature reserves,street greenery,and lakes are linked with lower heat-related cardiovascular mortality,whereas rivers and coasts mitigate cold-related cardiovascular *** spaces provide greater benefits than green *** severity of temperature extremes further amplifies GBS's protective *** study enhances our understanding of how type-specific GBS influences health risks associated with non-optimal temperatures,offering valuable insights for integrating GBS into climate adaptation strategies for maximal health benefits.

关键词： Green space Blue space Temperature Mortality China

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粤北过山瑶祭祀歌的艺术特征

清远职业技术学院学报 2023年第1期16卷 21-26页

作者：赵旭超韶关学院音乐与舞蹈学院广东韶关512005

粤北过山瑶瑶民信仰家先与神灵,有举行祭祀仪式驱邪消灾、祈求平安吉祥的传统习俗。祭祀歌是诸多祭祀仪式不可或缺的重要组成部分,具有通神娱人的重要功能。祭祀歌的歌词结构类型多样,以韵文体形式记载了关于瑶族族源、宗教信仰、习俗... 详细信息

粤北过山瑶瑶民信仰家先与神灵,有举行祭祀仪式驱邪消灾、祈求平安吉祥的传统习俗。祭祀歌是诸多祭祀仪式不可或缺的重要组成部分,具有通神娱人的重要功能。祭祀歌的歌词结构类型多样,以韵文体形式记载了关于瑶族族源、宗教信仰、习俗等方面的内容。师爷在演唱时节拍自由,灵活地融入衬字衬词,将核腔予以自由展衍,自由地运用丰富的装饰音,展示了浓厚的粤北过山瑶宗教文化色彩。

关键词：粤北过山瑶祭祀歌

Presolar grains in the CM2 chondrite Sutter's Mill

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Presolar grains in the CM2 chondrite Sutter's Mill

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： xuchao zhao Yangting LIN Qing-Zhu YIN Jianchao ZHANG Jialong HAO Michael ZOLENSKY Peter JENNISKENS Key Laboratory of the Earth’s Deep Interior Institute of Geology and GeophysicsChinese Academy of Sciences Department of Earth and Planetary Sciences University of California at Davis ARES NASA Johnson Space Center SETI Institute Mountain View NASA Ames Research Center Moffett Field

The Sutter’s Mill(SM)carbonaceous chondrite is a regolith breccia,composed predominantly of CM2 clasts with varying degrees of aqueous alteration and thermal *** investigation of presolar grains in four Sutter’s Mill sections,SM43,SM51,SM2-4,and SM18,was carried out using Nano SIMS ion mapping technique.A total of 37 C-anomalous grains and one O-anomalous grain have been identified,indicating an abundance of 63 ppm for presolar C-anomalous grains and 2 ppm for presolar ***-one silicon carbide(Si C),five carbonaceous grains,and one Al-oxide(Al2O3)were confirmed based on their elemental compositions determined by C-N-Si and O-Si-Mg-Al isotopic *** overall abundance of Si C grains in Sutter’s Mill(55 ppm)is consistent with those in other CM *** absence of presolar silicates in Sutter’s Mill suggests that they were destroyed by aqueous alteration on the parent ***,SM2-4 shows heterogeneous distributions of presolar Si C grains(12–54 ppm)in different matrix areas,indicating that the fine-grained matrix clasts come from different sources,with various thermal histories,in the solar nebula.

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粤北瑶族民歌《十二月花》的艺术特征

湘南学院学报 2018年第3期39卷 83-86页

作者：赵旭超韶关学院音乐学院广东韶关512005

粤北瑶族民歌《十二月花》,采用当地时令花名作歌,按照月份顺序演唱,提示瑶民察看花开时节,用以指导生产劳动。其歌词结构自由,大量运用衬字、衬词;旋律音域较窄,节拍自由,在丰富的装饰音修饰下,具有浓厚的粤北瑶族气息。分析其艺术特征... 详细信息

粤北瑶族民歌《十二月花》,采用当地时令花名作歌,按照月份顺序演唱,提示瑶民察看花开时节,用以指导生产劳动。其歌词结构自由,大量运用衬字、衬词;旋律音域较窄,节拍自由,在丰富的装饰音修饰下,具有浓厚的粤北瑶族气息。分析其艺术特征,以期对保护和传承《十二月花》以及进一步研究粤北瑶族民歌有所裨益。

关键词：粤北瑶族《十二月花》歌词旋律

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龙江森工林区森林固碳量核算及碳汇潜力评价

林业经济问题 2016年第5期36卷 434-438,461页

作者：韩旭超赵进李顺龙东北林业大学经济管理学院哈尔滨150040

基于森林蓄积量换算因子法与灰色预测GM(1,1)模型,对龙江森工林区森林固碳量和碳汇潜力进行核算与预测。结果表明:天保工程的实施和重点国有林区全面停止商业性采伐对森工林区的碳汇效果产生重大影响。截至2015年天保工程累计增汇2.85 T... 详细信息

基于森林蓄积量换算因子法与灰色预测GM(1,1)模型,对龙江森工林区森林固碳量和碳汇潜力进行核算与预测。结果表明:天保工程的实施和重点国有林区全面停止商业性采伐对森工林区的碳汇效果产生重大影响。截至2015年天保工程累计增汇2.85 Tg(1 Tg=1012g);到2020年,停伐政策支持下新增碳汇1.27 Tg。龙江森工林区现有森林碳储量为986 Tg,2030年碳储量将达到1 158 Tg,碳汇潜力巨大。

关键词：森林碳储量固碳潜力森工林区

激光功率对WC颗粒增强铁基复合涂层摩擦学性能的影响

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金属热处理 2018年第3期43卷 56-61页

作者：上官绪超赵运才徐颖何文黄杰江西理工大学机电工程学院

利用激光重熔工艺对在45钢表面预置的Fe基复合陶瓷涂层进行处理,探讨了不同激光功率（600 W、800 W和1000 W）的重熔处理对涂层组织及摩擦学性能的影响。结果表明,激光重熔使涂层与基体间发生了元素转移;得到了内聚强度更高的复合涂层;... 详细信息

利用激光重熔工艺对在45钢表面预置的Fe基复合陶瓷涂层进行处理,探讨了不同激光功率（600 W、800 W和1000 W）的重熔处理对涂层组织及摩擦学性能的影响。结果表明,激光重熔使涂层与基体间发生了元素转移;得到了内聚强度更高的复合涂层;不同激光功率下涂层的显微硬度与耐磨性均远高于等离子喷涂Fe基复合陶瓷涂层,其中激光功率为800 W时的Fe基复合陶瓷涂层的显微硬度最高,耐磨性能最好。硬质陶瓷相WC颗粒、纳米级Si C颗粒及其原位生成的化合物Fe Si、Si C及M_7C_3起到了弥散强化作用,改善了涂层磨损特性,从而提高了涂层的耐磨性能。

关键词：等离子喷涂激光重熔 Fe基陶瓷涂层耐磨性能