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智慧农业环境监测平台设计

林业机械与木工设备 2024年第2期52卷 56-58,61页

作者：乔元斌马晟帛郝泽贤李欣李浩然王立峰东北林业大学计算机与控制工程学院黑龙江哈尔滨150040

我国农业快速发展的同时存在水资源浪费、生产能耗高、无法为植物提供合适的生长环境等问题。因此,基于物联网相关技术,进行智慧农业发展模式的研究具有重要实际意义与应用价值。以STM32F103C8T6微控制器为控制中心,设计农业环境监测平... 详细信息

我国农业快速发展的同时存在水资源浪费、生产能耗高、无法为植物提供合适的生长环境等问题。因此,基于物联网相关技术,进行智慧农业发展模式的研究具有重要实际意义与应用价值。以STM32F103C8T6微控制器为控制中心,设计农业环境监测平台,实现农业信息数据采集、数据处理、终端控制等功能,并通过MQTT协议与手机APP进行通信,实现数据的远程监测与控制。

关键词：智慧农业物联网环境监测

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我国平原区土壤地球化学异常成因研究

物探化探计算技术 2005年第3期27卷 237-240页

作者：朱立新马生明地科院物化探研究所应用地球化学开放实验室河北廊坊065000

我国平原地区土壤地球化学异常普遍存在,但是目前对这些异常的成因缺乏系统认识。这里以长春和南京地区的Hg、Cd异常试验研究结果为例,利用元素相关关系法,对此进行了系统研究。结果表明,城镇及其周边地区的土壤地球化学异常,异常组分... 详细信息

我国平原地区土壤地球化学异常普遍存在,但是目前对这些异常的成因缺乏系统认识。这里以长春和南京地区的Hg、Cd异常试验研究结果为例,利用元素相关关系法,对此进行了系统研究。结果表明,城镇及其周边地区的土壤地球化学异常,异常组分叠加量表现出表层累积型特点,此类异常的成因与人类活动有关。分布在河流沿岸的土壤地球化学异常,在垂向上,异常组分叠加量表现出了连续型分布特点,且异常组分含量主要受土壤物质组成的控制,此类异常是在河流沉积物自然沉积过程中形成的。

关键词：平原区土壤地球化学异常成因元素相关关系法异常组分基准值异常组分叠加量

Prevalence and associated factors of corneal blindness in Ningxia in northwest China

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International Journal of Ophthalmology(English edition) 2014年第3期7卷 557-562页

作者： Xun-Lun sheng Hui-Ping Li Qing-Xia Liu Wei-Ning Rong Wen-Zhang Du Li ma Guang-Hui Yan Run-Qing ma Jian-Ling Zhang Hui-Fang Xu Wen-Qing Zou Xiao-Jun Bi Ningxia Eye Hospital Ningxia People's Hospital Department of Ophthalmology Tongxin Hospital Ningxia Hui Autonomous Region China Department of Ophthalmology Ningxia Medical University

AIM:To describe the prevalence and demographic characteristics of corneal blindness in an urban and rural region of Ningxia,located in the northwest part of ***:A stratified,randomized sampling procedure was employed in the study,including urban and rural area of all age *** acuity,anterior segment and ocular fundus were *** factor of corneal disease,including age,gender,education status,ethnic group,location and occupation,were identified according to uniform customized *** eye was defined to be corneal blindness if the visual acuity wasma and immune corneal disease were the three leading causes of corneal *** cornealdisease was more likely leading to blindness in one ***,infectious and immune corneal diseases make more contribution to the bilateral corneal ***:Corneal blindness is a significant burden of in Ningxia population,encompassing a variety of corneal infections and trauma;the majority of those were *** promotion strategies and good hygienic conditions have to be developed.

关键词： corneal disease epidemiology blindness infectious keratitis trauma

A shallow ice core from East Greenland showing a reduction in black carbon during 1990-2016

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Advances in Climate Change Research 2020年第4期11卷 360-369页

作者： DU Zhi-Heng XIAO Cun-De DOU Ting-Feng LI Chuan-Jin DING ming-Hu Sangeeta SHARma ma Xiang-Yu WANG Shi-Meng ZHANG Wang-Bing State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou730000China Southern marine Science and Engineering Guangdong Laboratory Guangzhou511458China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing100875China University of Chinese Academy of Science Beijing100049China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing100081China Climate Research Division Environment and Climate Change CanadaTorontoM3H 5T4Canada School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing210023China

This study reports on the measurements of ion and refractory black carbon(rBC)concentrations in a shallow(10.96 m)ice core sample which was drilled from the field site of the East Greenland Ice Core Project(EGRIP)in July,*** results provide a recent record of rBC deposition in the East Greenland ice sheet from 1990 to *** annual variability in oxygen(δ^(18)O)and hydrogen(δD)isotopic compositions indicated that notably warm events occurred since *** in rBC occurred during summer seasons,which may be attributed to the burning of biomass in boreal *** rBC record and analysis of historical air trajectories using the HYSPLIT model indicated that anthropogenic BC emissions from Russia,North America and Europe contributed to the majority of rBC deposition in the Greenland region,and a reduction in anthropogenic BC consumption in these areas played a dominant role in the decrease in BC concentrations since *** record also suggests that the emissions from the East Asian region(China)contributed very little to the recorded BC concentrations in East Greenland ice *** model results indicated that radiative forcing due to BC had decreased significantly since 1990,and had remained below 0.02W m^(-2) since 2000.

关键词： East Greenland Ice core Black carbon Seasonal variability Potential emission sources

面向6G边缘网络的云边协同计算任务调度算法

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北京邮电大学学报 2020年第6期43卷 66-73页

作者：马璐刘铭李超路兆铭马欢国家计算机网络应急技术处理协调中心北京100029 北京邮电大学信息与通信工程学院北京100876 北京邮电大学网络体系构建与融合北京市重点实验室北京100876

提出了一种分布式的第6代移动通信系统(6G)云边协同计算架构,设计了基于近似雅可比交替方向乘子法的云边协同计算任务的调度算法.将云边协同计算任务的调度问题建模为综合考虑时延、能耗、带宽成本及服务质量损失等因素的系统开销最小... 详细信息

提出了一种分布式的第6代移动通信系统(6G)云边协同计算架构,设计了基于近似雅可比交替方向乘子法的云边协同计算任务的调度算法.将云边协同计算任务的调度问题建模为综合考虑时延、能耗、带宽成本及服务质量损失等因素的系统开销最小化问题,并通过高效的分布式并行计算方式进行求解.仿真实验结果表明,该算法可在保障用户服务质量的同时降低网络运营成本的开销,收敛速度快,执行效率高.

关键词：第6代移动通信系统移动边缘计算云边协同软件定义网络

Promotion effect of TGF-β-Zfp423-ApoD pathway on lip sensory recovery after nerve sacrifice caused by nerve collateral compensation

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International Journal of Oral Science 2023年第2期15卷 318-331页

作者： Pingchuan ma Gaowei Zhang Su Chen Cheng Miao Yubin Cao Meng Wang Wenwen Liu Jiefei Shen Patrick ming-Kuen Tang Yi Men Li Ye Chunjie Li State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Head and Neck Oncology West China Hospital of StomatologySichuan UniversityChengduChina State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Oral and maxillofacial Surgery West China Hospital of StomatologySichuan UniversityChengduChina Department of Medical Record West China Hospital of StomatologySichuan UniversityChengduChina Department of Geriatric Dentistry Peking University School and Hospital of StomatologyBeijingChina State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Prosthodontics West China Hospital of StomatologySichuan UniversityChengduChina Department of Medicine&Therapeutics Li Ka Shing Institute of Health Sciencesand Lui Che Woo Institute of Innovative Medicine&Department of Anatomical and Cellular PathologyState Key Laboratory of Translational OncologyPrince of Wales HospitalThe Chinese University of Hong KongShatinHong KongChina

Resection of oral and maxillofacial tumors is often accompanied by the inferior alveolar nerve neurectomy,resulting in abnormal sensation in lower *** is generally believed that spontaneous sensory recovery in this nerve injury is ***,during our follow-up,patients with inferior alveolar nerve sacrifice showed different degrees of lower lip sensory *** this study,a prospective cohort study was conducted to demonstrate this phenomenon and analyze the factors influencing sensory recovery.

关键词： sensation collateral effect

局校科技合作成效评估标准体系构建探析——以气象部门局校合作为例

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标准科学 2024年第1期 38-47页

作者：崔晓军何勇赵亚南吴明亮马春平成秀虎中国气象局气象干部培训学院中国气象局科技与气候变化司

以气象部门2018-2022年局校科技合作统计数据为依据,分析气象部门局校科技合作现状及问题,探索构建由基础通用、局校科技合作成效评估保障、科研项目合作评估、联合团队组建评估、联合平台(及机构)建设评估、局校合作科技成果在气象部... 详细信息

以气象部门2018-2022年局校科技合作统计数据为依据,分析气象部门局校科技合作现状及问题,探索构建由基础通用、局校科技合作成效评估保障、科研项目合作评估、联合团队组建评估、联合平台(及机构)建设评估、局校合作科技成果在气象部门转化评估、局校科技合作成效评估成果等7个子体系组成的局校科技合作成效评估标准体系框架,提出局校科技合作成效评估标准体系实施应用对策建议,以促进评估结果的转化应用。

关键词：局校合作科技合作成效评估标准体系

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安徽马头斑岩型钼铜矿异常结构研究

地质与勘探 2015年第2期51卷 323-331页

作者：胡兆鑫马生明中国地质科学院岩溶地质研究所广西桂林541004 中国地质科学院地球物理地球化学勘查研究所河北廊坊065000

利用元素质量平衡计算方法,将元素含量转换成迁移量,直观展现出由元素迁移量构成的原生异常,根据异常的空间分布规律,总结出了由成矿地球化学环境指示元素(Na2O、Ba、Sr)负异常、矿化剂元素(S)正异常、成矿元素(Mo、Cu)及其伴生元素(Ag... 详细信息

利用元素质量平衡计算方法,将元素含量转换成迁移量,直观展现出由元素迁移量构成的原生异常,根据异常的空间分布规律,总结出了由成矿地球化学环境指示元素(Na2O、Ba、Sr)负异常、矿化剂元素(S)正异常、成矿元素(Mo、Cu)及其伴生元素(Ag、As、Sb、W等)正异常构成的马头斑岩型钼铜矿原生异常结构,利用原生异常结构可以对深部成矿前景进行判断和评价;地表岩石(屑)测量结果表明研究区地表同样存在异常结构,且对原生异常结构有很好的继承性,利用地表异常结构可以指明找矿方向、成矿有利地段和矿床产出位置。上述研究成果的取得,不仅丰富和充实了地球化学勘查方法技术,为其他同类型矿床的地球化学勘查提供了参考案例,同时对勘查地球化学应用基础理论而言也是有益的尝试。

关键词：马头斑岩型钼铜矿床异常结构迁移量地球化学异常安徽

β-Cyclodextrin Decorated CdS Nanocrystals Boosting the Photocatalytic Conversion of Alcohols

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CCS Chemistry 2020年第3期2卷 81-88页

作者： Juan Wang You-Xiang Feng Min Zhang Chao Zhang ming Li sheng-Jie Li Wen Zhang Tong-Bu Lu Institute for New Energy materials and Low Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384

Regarding the utilization of semiconductor nanocrystals(NCs)in photocatalysis,the significant challenge is to eliminate the hindrance of decorated surface ligands on the photocarrier transport while maintaining their overall ***,we report a novel and stable catalyst comprising CdS NCs and surfacebound mono-(6-mercapto-6-deoxy)-β-cyclodextrin(HS-β-CD)molecules(denoted as CdS-CD),which could convert alcohols selectively into diols or aldehydes and H2 under visible light irradiation,with 100%atomutilization,using an aqueous medium as a green *** decoratedβ-CD ligands did not only confer a good stability of CdS-CD in water but also showed a high host–guest affinity to the alcohol species,thereby,guaranteeing a close vicinity of alcohol molecules at the surface of CdS NCs and minimizing the hindrance of surface ligands on the photocarrier *** a result,the CdS-CD displayed much improved photocatalytic activity for the conversion of alcohols in aqueous media,compared with those of CdS-BF_(4)NCs.

关键词： CdS nanocrystals β-cyclodextrin alcohol photocatalysis dehydrogenative cross-coupling reactions