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Coordinated Mining Procedures of Open Pit Mines Based on River Management

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Asian Agricultural Research 2024年第5期16卷 11-14,19页

作者： Baoyu CAO Zhiyong ZHANG bo wang Ruirong DONG Hongjian wang Huolinhe South Surface Mine of Inner Mongolia Power Investment Energy Co. Ltd.Tongliao 029200China CCTEG Shenyang Engineering Company Shenyang 110015China

This paper primarily concerns the effective coordination of the procedures and methods employed in open pit mining operations under the background of river *** central objective of this study is to identify a viable approach for ensuring rational and efficient development of open pit mineral resources while simultaneously protecting and restoring the ecological environment of the *** approach should facilitate the realization of a harmonious symbiosis between mining and river *** intricate mutual influence relationship between river management and open pit mining is first analyzed in depth,which provides a solid foundation for the subsequent coordination strategy *** light of the aforementioned considerations,a set of coordination procedures for open pit mining based on river management conditions is *** procedures emphasize the integration of river protection into the overall layout of mining at the planning *** implementation of scientific mining schemes,accompanied by rigorous control of the scope and depth of mining operations,has proven to be an effective means of reducing the impact of mining activities on river *** approach has also facilitated the achievement of a balance and coordination between mining and river management.

关键词： River management Open pit mine Mining procedure Coordinated mining

Atom-referenced and stabilized soliton microcomb

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 2-8页

作者： Rui Niu Shuai Wan Tian-Peng Hua Wei-Qiang wang Zheng-Yu wang Jin Li Zhu-bo wang Ming Li Zhen Shen Yu Robert Sun Shui-Ming Hu Brent ELittle Sai Tak Chu Wei Zhao Guang-Can Guo Chang-Ling Zou Yun-Feng Xiao Wen-Fu Zhang Chun-Hua Dong State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Materials Science City University of Hong KongHong Kong 999077China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

For the applications of the frequency comb in microresonators,it is essential to obtain a fully frequency-stabilized microcomb laser *** this study,we present a system for generating a fully atom-referenced stabilized soliton *** pump light around 1560.48 nm is locked to an ultra-low-expansion(ULE)*** pump light is then frequency-doubled and referenced to the atomic transition *** repetition rate of the soliton microcomb is injection-locked to an atomic-clockstabilized radio frequency(RF)source,leading to mHz stabilization at 1 *** a result,all comb lines have been frequencystabilized based on the atomic reference and the ULE cavity,achieving a very high precision of approximately 18 Hz at 1 s,corresponding to the frequency stability of 9.5×10^(-14).Our approach provides a fully stabilized microcomb experiment scheme with no requirement of f-2f technique,which could be easily implemented and generalized to various photonic platforms,thus paving the way towards the ultraprecise optical sources for high precision spectroscopy.

关键词： microcavity frequency comb dissipative Kerr solitons fully stabilized microcomb

习近平文化思想的历史逻辑、理论蕴涵与实践意义

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海南大学学报（人文社会科学版） 2024年第3期42卷 10-20,F0003页

作者：王波厦门大学哲学系福建厦门361005

深化习近平文化思想的学理化研究阐释及其实践运用,对谱写中国式现代化所构建的中华民族现代文明新华章、创造人类文明新形态、推动世界历史文明发展具有重大意义。习近平文化思想精准把握新时代社会主要矛盾变化,通过建设文化强国为全... 详细信息

深化习近平文化思想的学理化研究阐释及其实践运用,对谱写中国式现代化所构建的中华民族现代文明新华章、创造人类文明新形态、推动世界历史文明发展具有重大意义。习近平文化思想精准把握新时代社会主要矛盾变化,通过建设文化强国为全面建成社会主义现代化强国提供文化支撑,并且始终坚持以人民为中心推进文化建设。它以中华优秀传统文化、革命文化和社会主义先进文化为滋养,致力于通过“结合”,创造既具有马克思主义的科学基础,又彰显中国特色社会主义文化主体性承诺的中华民族现代文明,开辟了21世纪马克思主义文化理论新境界。习近平文化思想蕴涵中华文化主体性、世界历史与共产主义三位一体的历史图式和理论结构,有助于牢牢把握文化领导权,勘破和超越资本主义文化霸权,终结所谓“历史的终结”并开启人类文明新形态。

关键词：习近平文化思想文化强国社会主义文化主体性两个结合中华民族现代文明

人工智能推动的高技能人才需求与能力结构变迁研究——以人机智能协作的模式差异为视角

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职教论坛 2024年第1期40卷 16-26页

作者：王博天津市教育科学研究院天津300191

人工智能对许多职业产生了明显影响,人机智能协作将成为常态。基于对不同任务类型下人类和当前人工智能技术的优势特征分析,人机智能协作可归纳为智能工具型、协同合作型和重塑补充型三种典型模式。三种模式下的人机分工和协同工作方式... 详细信息

人工智能对许多职业产生了明显影响,人机智能协作将成为常态。基于对不同任务类型下人类和当前人工智能技术的优势特征分析,人机智能协作可归纳为智能工具型、协同合作型和重塑补充型三种典型模式。三种模式下的人机分工和协同工作方式差别显著,因此也造成了社会人才需求尤其是高技能应用型人才的需求状况和适应性能力结构要求的巨大差异。智能工具型协作模式下高技能人才的职业能力核心是新型智能化业务实践能力,协同合作型协作模式下的高技能人才的职业能力核心则是以统筹人机智能系统实现职业功能为根本的智能协作能力,重塑补充型协作模式下高技能人才需求则会被人工智能大量替代。

关键词：人工智能人机智能协作高技能人才社会人才需求能力结构

福州市滨海新城与平潭综合实验区联动发展规划探析

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规划师 2024年第7期40卷 143-151页

作者：汪波福州市规划设计研究院集团有限公司

以福州市滨海新城与平潭综合实验区为研究对象,剖析其各自发展特征,指出滨海新城与平潭综合实验区联动发展的必要性及重要性,系统搭建包括空间统筹、产业互联、设施一体、政策共享的联动发展思路框架,提出共建宜居生活圈、分工协作培育... 详细信息

以福州市滨海新城与平潭综合实验区为研究对象,剖析其各自发展特征,指出滨海新城与平潭综合实验区联动发展的必要性及重要性,系统搭建包括空间统筹、产业互联、设施一体、政策共享的联动发展思路框架,提出共建宜居生活圈、分工协作培育产业优势、强化服务设施共建共享、构建共担共享机制等方面的联动发展策略,探索联动发展的新模式与新路径。

关键词：联动发展规划区域协调发展福州市滨海新城平潭综合实验区

sTREM-1 as promising prognostic biomarker for acute-on-chronic liver failure and mortality in patients with acute decompensation of cirrhosis

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World Journal of Gastroenterology 2024年第9期30卷 1177-1188页

作者： Song-Man Yu Hai Li Guo-Hong Deng Xian-bo wang Xin Zheng Jin-Jun Chen Zhong-Ji Meng Yu-Bao Zheng Yan-Hang Gao Zhi-Ping Qian Feng Liu Xiao-bo Lu Yu Shi Jia Shang Ruo-Chan Chen Yan Huang Department of Infectious Diseases Xiangya HospitalCentral South UniversityChangsha 410000Hunan ProvinceChina Department of Gastroenterology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Infectious Diseases Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100020China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430020Hubei ProvinceChina Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Infectious Disease Taihe HospitalHubei University of MedicineShiyan 442009Hubei ProvinceChina Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630Guangdong ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 200093China Tianjin Institute of Hepatology Nankai University Second People's HospitalTianjin 300192China Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital of School of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvineChina Department of Infectious Diseases Henan Provincial People's HospitalZhengzhou 463599Henan ProvineChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 110051Hunan ProvineChina

BACKGROUND Acute decompensation(AD)of cirrhosis is associated with high short-term mortality,mainly due to the development of acute-on-chronic liver failure(ACLF).Thus,there is a need for biomarkers for early and accurate identification of AD patients with high risk of development of ACLF and *** triggering receptor expressed on myeloid cells-1(sTREM-1)is released from activated innate immune cells and correlated with various inflammatory *** To explore the prognostic value of sTREM-1 in patients with AD of *** A multicenter prospective cohort of 442 patients with cirrhosis hospitalized for AD was divided into a study cohort(n=309)and validation cohort(n=133).Demographic and clinical data were collected,and serum sTREM-1 was measured at *** enrolled patients were followed-up for at least 1 *** In patients with AD and cirrhosis,serum sTREM-1 was an independent prognosis predictor for 1-year survival and correlated with liver,coagulation,cerebral and kidney failure.A new prognostic model of AD(P-AD)incorporating sTREM-1,blood urea nitrogen(BUN),total bilirubin(TBil),international normalized ratio(INR)and hepatic encephalopathy grades was established and performed better than the model for end-stage liver disease(MELD),MELD-sodium(MELD-Na),chronic liver failure-consortium(CLIF-C)ACLF and CLIF-C AD ***,sTREM-1 was increased in ACLF and predicted the development of ACLF during first 28-d *** ACLF risk score incorporating serum sTREM-1,BUN,INR,TBil and aspartate aminotransferase levels was established and significantly superior to MELD,MELD-Na,CLIF-C ACLF,CLIF-C AD and P-AD in predicting risk of ACLF *** Serum sTREM-1 is a promising prognostic biomarker for ACLF development and mortality in patients with AD of cirrhosis.

关键词： Soluble triggering receptor expressed on myeloid cell-1 Acute decompensation Cirrhosis Acute-on-chronic liver failure Prognostic biomarker

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基于数据集蒸馏的光伏发电功率超短期预测

中国电机工程学报 2024年第13期44卷 5196-5207,I0015页

作者：郑珂王丽婕郝颖王勃北京信息科技大学自动化学院北京市海淀区100192 中国电力科学研究院有限公司北京市海淀区100192

云是影响太阳直接辐射变化的主要因素,由于各类云的透光率不同,导致到达光伏电站的太阳辐射会随之产生波动。为解决各类云遮挡下的光伏发电功率波动大、预测模型个数多的问题,提出一种基于卫星云图和数据集蒸馏的光伏发电功率超短期预... 详细信息

云是影响太阳直接辐射变化的主要因素,由于各类云的透光率不同,导致到达光伏电站的太阳辐射会随之产生波动。为解决各类云遮挡下的光伏发电功率波动大、预测模型个数多的问题,提出一种基于卫星云图和数据集蒸馏的光伏发电功率超短期预测模型。首先,基于待测场站上方的历史云图,采用Farneback光流法预测出云图;然后,根据卫星云分类标签数据建立各类云的样本库,利用数据集蒸馏算法训练样本库得到云类判别图,将预测云图与云类判别图匹配计算,获得云类聚合匹配特征;最后,利用上述特征、云量特征以及数值天气预报数据建立长短期记忆网络模型,对光伏发电功率进行超短期预测。利用某光伏电站数据进行验证,结果显示,该文所提模型能准确描述云层的各项特征,有效提升光伏功率预测精度。

关键词：数据集蒸馏卫星云图云分类光流法超短期光伏功率预测

基于因果正则化极限学习机的风电功率短期预测方法

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电力系统保护与控制 2024年第11期52卷 127-136页

作者：杨茂张书天王勃现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学) 吉林吉林132012 新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司) 北京100192

随着风电并网比例的逐年提高,电力系统对风电功率预测的准确性和稳定性提出了更高要求。对于同一风电场而言,为了避免不同特征选择方法所选择的风电场特征子集不同,从因果关系的角度出发,提出了一种基于因果正则化极限学习机(causal reg... 详细信息

随着风电并网比例的逐年提高,电力系统对风电功率预测的准确性和稳定性提出了更高要求。对于同一风电场而言,为了避免不同特征选择方法所选择的风电场特征子集不同,从因果关系的角度出发,提出了一种基于因果正则化极限学习机(causal regularized extreme learning machine, CRELM)的风电功率短期预测方法。首先将极限学习机(extreme learning machine, ELM)建模为结构因果模型(structural causal model, SCM),在此基础上计算隐藏层神经元与输出层神经元之间的平均因果效应向量。然后将该平均因果效应向量与输出层权重相结合构成因果正则化项,在最小化训练误差的同时最大化网络的因果关系,以进一步提升模型的预测准确性和预测稳定性。最后,以国内蒙西某风电场数据为例,与采用特征选择或不采用特征选择的预测模型相对比,验证了所提方法的有效性和适用性。

关键词：特征选择因果正则化结构因果模型平均因果效应向量极限学习机

基于二阶变增益滑模的感应电机电压模型磁链观测器

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中国电机工程学报 2024年第11期44卷 4490-4500,I0027页

作者：王天擎王勃于泳徐殿国哈尔滨工业大学电气工程及自动化学院黑龙江省哈尔滨市150001

针对无速度传感器感应电机驱动系统,基于二阶滑模的电压模型磁链观测器可以有效提升传统开环电压模型观测器的转速估计鲁棒性。然而,现有二阶滑模电压模型观测器仍然存在以下2个问题:1)滑模观测器常数增益与可变稳定性条件间的不匹配问... 详细信息

针对无速度传感器感应电机驱动系统,基于二阶滑模的电压模型磁链观测器可以有效提升传统开环电压模型观测器的转速估计鲁棒性。然而,现有二阶滑模电压模型观测器仍然存在以下2个问题:1)滑模观测器常数增益与可变稳定性条件间的不匹配问题;2)由于存在直流偏置,需要采用非理想积分器来估计转子磁链。针对这2个问题,该文提出相应解决方案:1)改进二阶滑模观测器结构,并根据稳定性条件设计可变增益,以同时实现宽调速范围内的观测器稳定性与抖振抑制;2)根据滑模观测器的输出,设计一种带直流偏置补偿的积分器,以提升磁链估计精确度。最后,在3.7 kW的感应电机实验装置上进行对比实验,证明所提方法有效性。

关键词：感应电机无速度传感器控制电压模型观测器滑模观测器直流偏置补偿