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Mesoscale soil moisture survey by mobile cosmic-ray neutron sensor across various landscapes in the Heihe River Basin

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Research in Cold and Arid Regions 2023年第5期15卷 211-218页

作者： shaoxiong wu YongYong Zhang WenRong Kang WenZhi Zhao National Field Science Research Station of Farmland Ecosystem in Linze Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China University of Chinese Academy of Sciences Beijing 100049China

The cosmic-ray neutron technology is a novel method for upscaling soil moisture,holding significant importance in drought monitoring,soil water storage estimation,calibration of remote sensing products,and data assimilation of land surface ***,most studies conducted soil moisture measurement experiments using static Cosmic-Ray Neutron Sensors(CRNS)and are often limited to a single landscape,lacking in-situ measurement for the cosmic-ray neutron rover across various *** study carried out soil moisture observation experiments using a cosmic-ray neutron rover in nine grassland plots,nine farmland plots,and nine desert plots of the Heihe River Basin,Northwest *** neutron counts displayed clear variations among different plots,and an equation could represent the relationship between neutron intensity and multiple variables near the *** parameter N0 was the smallest for grassland and greatest for desert,and there was a significant negative correlation between Normalized Difference Vegetation Index and N0(P<0.05).Furthermore,the performance of CRNS notably improved after considering soil lattice water and soil organic *** Root Mean Square Error(RMSE)between the measured and oven-dried soil moisture increased with *** moisture measured by CRNS strongly supported the 100 m diameter footprint assumption(RMSE<0.044 g/g).The study offers valuable insights into the application and promotion of cosmic-ray neutron technology across various landscapes within a basin.

关键词： Soil water content Neutron intensity Footprint Multi-landscapes Northwest China

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Plasmon resonance-enhanced graphene nanofilmbased dual-band infrared silicon photodetector

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Photonics Research 2023年第10期11卷 1657-1666页

作者： XINYU LIU shaoxiong wu XIAOXUE CAO FENG TIAN SRIKRISHNA CHANAKYA BODEPUDI MUHAMMAD MALIK CHAO GAO LI PENG HUAN HU YANG XU School of Micro-Nano Electronics ZJU-Hangzhou Global Scientific and Technological Innovation CenterState Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang UniversityHangzhou 310027China ZJU-UIUC Institute International CampusZhejiang UniversityHaining 314400China Department of Polymer Science and Engineering MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationKey Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceZhejiang UniversityHangzhou 310027China

Graphene-based photodetectors have attracted much attention due to their unique properties,such as high-speed and wide-band detection ***,they suffer from very low external quantum efficiency in the infrared(IR)region and lack spectral ***,we construct a plasmon-enhanced macro-assembled graphene nanofilm(nMAG)based dual-band infrared silicon *** Au plasmonic nanostructures improve the absorption of long-wavelength photons with energy levels below the Schottky barrier(between metal and Si)and enhance the interface transport of *** with the strong photo-thermionic emission(PTI)effect of nMAG,the n MAG–Au–Si heterojunctions show strong dual-band detection capability with responsivities of52.9 mA/W at 1342 nm and 10.72 mA/W at 1850 nm,outperforming IR detectors without plasmonic nanostructures by 58–4562 *** synergy between plasmon–exciton resonance enhancement and the PTI effect opens a new avenue for invisible light detection.

关键词： resonance band dual

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基于16S rDNA测序分析云南高原世居汉族高血压患者肠道菌群的差异

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广西医科大学学报 2024年第6期41卷 926-933页

作者：熊佳刘冉黄雪娟汪艳蛟殷建忠吴少雄吴志霜米飞昆明医科大学公共卫生学院昆明650500

目的:采用16S rDNA测序技术分析云南高原世居汉族新诊断高血压患者与健康人群肠道菌群的差异。方法:基于中国多民族队列(CMEC)的基线调查数据,将云南丽江永胜县汉族新诊断高血压患者分为未用药组(H组)23例,高血压药物治疗组(HM组)13例,... 详细信息

目的:采用16S rDNA测序技术分析云南高原世居汉族新诊断高血压患者与健康人群肠道菌群的差异。方法:基于中国多民族队列(CMEC)的基线调查数据,将云南丽江永胜县汉族新诊断高血压患者分为未用药组(H组)23例,高血压药物治疗组(HM组)13例,以健康人群26例作为对照(C组)。收集3组血液、粪便样本,用于血液生化指标检测及16S r DNA测序技术分析。结果:α多样性结果显示,与C组相比,H组肠道菌群物种丰富度下降(P=0.037);β多样性结果显示,3组比较差异具有统计学意义(R^(2)=0.047,P=0.043),其中HM组与C组差异最为显著(R^(2)=0.0552,P=0.005)。在属水平上,与C组比较,H组双歧杆菌、柯林斯杆菌属、苏黎世杆菌属等7个菌属丰度显著降低,而肠球菌属丰度显著增高(均P<0.05)。H组与C组Spearman相关性分析结果显示,双歧杆菌属和柯林斯杆菌属与收缩压(SBP)和舒张压(DBP)呈负相关关系(P<0.05)。受试者工作特征(ROC)曲线分析显示,双歧杆菌和柯林斯杆菌作为高血压疾病的微生物标志物的曲线下面积(AUC)为0.78。结论:云南高原世居汉族人群高血压疾病的发生、发展与肠道菌群紊乱相关,表现为有益菌减少,有害菌增加;双歧杆菌和柯林斯杆菌或可作为高原地区人群高血压的微生物标志物,补充有益菌和调整饮食结构可预防和改善高血压。

关键词：高原世居汉族高血压肠道菌群 16S rDNA测序

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“微信+情景模拟”互动式教学模式在营养学本科实践教学中的应用

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昆明医科大学学报 2024年第4期45卷 192-196页

作者：王松梅冯月梅吴少雄高艳香潘红梅吴志霜赵娴昆明医科大学公共卫生学院云南昆明650500 昆明市第一人民医院整形美容科云南昆明650100

目的评价“微信+情景模拟”互动式教学模式在营养咨询与教育实践教学中的效果,为本科生岗位胜任力培养提供参考。方法设置实验组和对照组,实验组采用“微信+情景模拟”互动式教学模式,对照组采用“情景模拟”教学模式。结果实验组在营... 详细信息

目的评价“微信+情景模拟”互动式教学模式在营养咨询与教育实践教学中的效果,为本科生岗位胜任力培养提供参考。方法设置实验组和对照组,实验组采用“微信+情景模拟”互动式教学模式,对照组采用“情景模拟”教学模式。结果实验组在营养咨询与教育实践过程中的主动性和积极性、团队合作能力、解决问题能力、交流能力和专业知识及技能应用能力优于对照组(均P<0.05);医患沟通中,实验组准备能力、信息给予能力和理解病人能力优于对照组(均P<0.05);实验组学习完成度、章节测验成绩及形成性考核总分均高于对照组(均P<0.05)。结论“微信+情景模拟”互动式教学模式对于提高本科生营养学实践能力具有较好效果,可为本科生岗位胜任力培养提供参考。

关键词：微信情景模拟互动式教学营养咨询与教育岗位胜任力

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A 4H-SiC semi-super-junction shielded trench MOSFET: p-pillar is grounded to optimize the electric field characteristics

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Journal of Semiconductors 2022年第12期43卷 79-87页

作者： Xiaojie Wang Zhanwei Shen Guoliang Zhang Yuyang Miao Tiange Li Xiaogang Zhu Jiafa Cai Rongdun Hong Xiaping Chen Dingqu Lin shaoxiong wu Yuning Zhang Deyi Fu Zhengyun wu Feng Zhang College of Physical Science and Technology Xiamen UniversityXiamen 361005China Key Laboratory of Semiconductor Material Sciences Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Shenzhen Research Institute of Xiamen University Shenzhen 518057China Jiujiang Research Institute of Xiamen University Jiujiang 332000China

A 4H-SiC trench gate metal-oxide-semiconductor field-effect transistor(UMOSFET)with semi-super-junction shiel-ded structure(SS-UMOS)is proposed and compared with conventional trench MOSFET(CT-UMOS)in this *** advantage of the proposed structure is given by comprehensive study of the mechanism of the local semi-super-junction structure at the bottom of the trench *** particular,the influence of the bias condition of the p-pillar at the bottom of the trench on the static and dynamic performances of the device is compared and *** on-resistance of SS-UMOS with grounded(G)and ungrounded(NG)p-pillar is reduced by 52%(G)and 71%(NG)compared to CT-UMOS,***,gate ox-ide in the GSS-UMOS is fully protected by the p-shield layer as well as semi-super-junction structure under the trench and p-base ***,a reduced electric-field of 2 MV/cm can be achieved at the corner of the p-shield ***,the quasi-intrinsic protective layer cannot be formed in NGSS-UMOS due to the charge storage effect in the floating p-pillar,resulting in a large electric field of 2.7 MV/cm at the gate oxide ***,the total switching loss of GSS-UMOS is 1.95 mJ/cm2 and is reduced by 18%compared with *** the contrary,the NGSS-UMOS has the slowest overall switching speed due to the weakened shielding effect of the p-pillar and the largest gate-to-drain capacitance among the *** proposed GSS-UMOS plays an important role in high-voltage and high-frequency applications,and will provide a valuable idea for device design and circuit applications.

关键词： breakdown voltage specific on-resistance silicon carbide switching energy loss super-junction-shield(SS) trench gate MOSFET grounded(G) ungrounded(NG)

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Genesis of the Jianbeigou Gold Deposit on the Southern Margin of the North China Craton: Insights from Fluid Inclusions, H-O-S Isotopes, and Pyrite in situ Trace Element Analyses

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Acta Geologica Sinica(English Edition) 2024年第4期98卷 969-991页

作者： LI Fengchun ZENG Qingdong ZHU Rixiang CHU shaoxiong XIE Wei YU Bing wu Jinjian LI Xinghui Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China School of Earth Science and Engineering Hebei University of EngineeringHandanHebei 056038China

The Jianbeigou gold deposit is a typical lode gold deposit in the Qinling metallogenic belt, located on the southern margin of the North China Craton. Three stages of the hydrothermal process can be distinguished, including the quartz ± pyrite, quartz-polymetallic sulfide, and quartz-carbonate ± pyrite stages. From the early to late stages, the homogenization temperatures of primary fluid inclusions are 281–362°C, 227–331°C, and 149–261°C, respectively. The corresponding salinities estimated for these fluids are 3.9–9.9 wt%, 0.4–9.4 wt%, and 0.7–7.2 wt% Na Cl equiv. Combined with laser Raman spectroscopy data, the ore-forming fluid belongs to a H_(2)O-CO_(2)-Na Cl ± CH_4 system with medium–low temperature and salinity. The δ~(18)Ofluid and δD values for the quartz veins are-1.0‰ to 6.0‰ and-105‰ to-84‰, respectively, which indicates that the ore-forming fluid is of mixed source, mainly derived from magma, with a contribution from meteoric water. Pyrite has been identified into three generations based on mineral paragenetic sequencing, including Py1, Py2, and Py3. The pyrites have δ~(34)S sulfur isotopic compositions from three stages between 3.7‰ and 8.4‰, indicating that sulfur mainly originated from magma. Te, Bi, Sb, and Cu contents in pyrite were all high and showed a strong correlation with Au concentrations. Native gold and the Au-Ag-Bi telluride minerals were formed concurrently, and the As concentration was low and decoupled from the Au content. Therefore, Te, Bi, Sb and other low-melting point chalcophile elements play an important role for gold mineralization in arsenic-deficient ore-forming fluid. Combined with the geological setting, evolution of pyrite, and ore-fluids geochemistry, we propose that the Jianbeigou deposit can be classified as a magmatic–hydrothermal lode gold deposit. Gold mineralization on the southern margin of the North China Craton is related to Early Cretaceous magmatism and formed in an extensional setting.

关键词： ore genesis H-O-S isotopes fluid inclusions in-situ trace element Jianbeigou gold deposit

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Analysis of the Prognosis for Patients with Stage T3N0-1M0 Nasopharyngeal Carcinoma Treated by Chemotherapy Combined with Radiotherapy

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Chinese Journal of Clinical Oncology 2006年第4期3卷 292-298页

作者： Guorong Zou Fangyun Xie Jianming Gao shaoxiong wu Shunan Qi Miao Peng State Key Laboratory of Oncology in South China Guangzhou Guangdong 510060. China. Department of Radiotherapy Center for Cancer Prevention and Treatment Sun Yat-sen University Guangzhou Guangdong 510060 China.

OBJECTIVE To investigate the relationship between the therapeutic modality and prognostic factors for the patients with T3N0-1M0 nasopharyngeal carcinoma. METHODS The clinical data from 127 cases of T3N0-1M0 nasopharyngeal carcinoma patients with initial treatment, during the period from January 4th, 2000 to November 12th, 2001, were retrospectively analyzed. The cases were divided into Group A with simple radiotherapy (90) and Group B with the radiation therapy combined with chemotherapy (37), based on various patients' conditions. In group B, inductive chemotherapy was conducted for 18 cases, inductive chemotherapy plus homochronous chemotherapy for 5 and homochronous chemotherapy for 14. RESULTS The 5-year overall survival (OS) in the groups A and B was 73.4% and 72.3% respectively (P>0.05); the cancer-correlated survival (CCS) in the 2 groups was 76.4% and 72.3% respectively (P>0.05); the disease-free survival (DFS) in group A and B was 65.5% and 71.7% respectively (P<0.05). A multiple analysis showed that the mode of radiation therapy plus chemotherapy was a favorable independent impact factor for DFS. CONCLUSION Chemotherapy plus radiotherapy can improve the DFS of patients with T3N0-1M0 nasopharyngeal carcinoma, but fails to prolong the survival time of the patients. The modality of chemotherapy plus radiotherapy is not the necessary choice in treatment of patients with T3N0-1M0 nasopharyngeal carcinoma.

关键词：鼻咽癌化学治疗放射治疗病理机制

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Key technology and application of AB_(2) hydrogen storage alloy in fuel cell hydrogen supply system

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Materials Reports(Energy) 2024年第1期4卷 113-122页

作者： Ming Yao Jianguang Yuan Bao Zhang Youhua Yan shaoxiong Zhou Ying wu School of Energy Power and Machinery Engineering North China Electric Power UniversityNo.2 BeinongluChangping DistrictBeijing 102206China Institute of Energy Power Innovation North China Electric Power UniversityNo.2 BeinongluChangping DistrictBeijing 102206China Jiangsu JITRI Advanced Energy&Materials Research Institute Co. LtdNo.5 ChongyinanluXinbei DistrictChangzhou 213000China

At present,there is limited research on the application of fuel cell power generation system technology using solid hydrogen storage materials,especially in hydrogen-assisted *** the disadvantages of low hydrogen storage capacity and poor kinetics of hydrogen storage materials,our primary focus is to achieve smooth hydrogen ab-/desorption over a wide temperature range to meet the requirements of fuel cells and their integrated power generation *** this paper,the Ti_(0.9)Zr_(0.1)Mn_(1.45)V_(0.4)Fe_(0.15) hydrogen storage alloy was successfully prepared by arc *** maximum hydrogen storage capacity reaches 1.89 wt% at 318 *** alloy has the capability to absorb 90% of hydrogen storage capacity within 50 s at 7 MPa and release 90% of hydrogen within 220 *** Multiphysics 6.0 software was used to simulate the hydrogen ab-/desorption processes of the *** flow rate of cooling water during hydrogen absorption varied in a gradient of(0.02 t x)m s^(-1)(x=0,0.02,0.04,0.06,0.08,0.1,0.12).Cooling water flow rate is positively correlated with the hydrogen absorption rate but negatively correlated with the *** the cooling rate is 0.06 m s^(-1),both simulation and experimentation have shown that the hydrogen storage tank is capable of steady hydrogen desorption for over 6 h at a flow rate of 2 L min^(-1).Based on the above conclusions,we have successfully developed a hydrogen-assisted two-wheeler with a range of 80 km and achieved regional demonstration operations in Changzhou and *** paper highlights the achievements of our team in the technological development of fuel cell power generation systems using solid hydrogen storage materials as hydrogen storage carriers and their application in twowheelers in recent years.

关键词： AB_(2)hydrogen storage alloy Hydrogen storage tanks Simulation Hydrogen-electric coupling system Power-assisted two-wheelers

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基于支持向量机的控制图在线检测和分析系统的研究

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中国机械工程 2006年第24期17卷 2562-2567页

作者：吴少雄黄恩洲福建工程学院福州350014

针对控制图在线检测和分析的要求,提出了系统基本框架。利用一对一算法的多类分类支持向量机进行控制图模式识别和异常模式下参数估计。在模型构造中,采用混合核函数,并利用遗传算法优化混合核函数支持向量机参数。仿真结果和实际应用表... 详细信息

针对控制图在线检测和分析的要求,提出了系统基本框架。利用一对一算法的多类分类支持向量机进行控制图模式识别和异常模式下参数估计。在模型构造中,采用混合核函数,并利用遗传算法优化混合核函数支持向量机参数。仿真结果和实际应用表明:该方法结构简单、收敛速度快,识别准确率高,能够满足控制图在线检测和分析的需要。

关键词：控制图模式识别参数估计支持向量机遗传算法

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交响音诗《海神妈祖》与“干支合乐论”

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人民音乐 2019年第2期 36-39页

作者：吴少雄不详

交响音诗《海神妈祖》改编自舞剧音乐《海灵》。乐曲以妈祖民俗崇拜为题材,在追求东方道德理想的同时,以意象主义的审美追求塑造了集善与美于一身的'东方海神'形象。乐曲提炼选用'妈祖'出生地福建莆田民间音乐语言的同时,混合运用了笔... 详细信息

交响音诗《海神妈祖》改编自舞剧音乐《海灵》。乐曲以妈祖民俗崇拜为题材,在追求东方道德理想的同时,以意象主义的审美追求塑造了集善与美于一身的'东方海神'形象。乐曲提炼选用'妈祖'出生地福建莆田民间音乐语言的同时,混合运用了笔者自创的'干支合乐论'作曲技法,把中华传统文化的精神融汇在当代的音乐创作中。

关键词：妈祖文化和声语言

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