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Energy Engineering 2024年第6期121卷 1671-1695页

作者： guanfu wang Yudie Sun Jinling Li Yu Jiang Chunhui Li Huanan Yu He wang Shiqiang Li State Grid Liaoning Electric Power Co. Ltd.Liaoyang Power Supply CompanyLiaoyang111000China Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology Ministry of Education(Northeast Electric Power University)Jilin132012China Jilin Northeast Electric Power University Science and Technology Development Co. Ltd.Jilin132012China

Traditional optimal scheduling methods are limited to accurate physical models and parameter settings, which aredifficult to adapt to the uncertainty of source and load, and there are problems such as the inability to make dynamicdecisions continuously. This paper proposed a dynamic economic scheduling method for distribution networksbased on deep reinforcement learning. Firstly, the economic scheduling model of the new energy distributionnetwork is established considering the action characteristics of micro-gas turbines, and the dynamic schedulingmodel based on deep reinforcement learning is constructed for the new energy distribution network system with ahigh proportion of new energy, and the Markov decision process of the model is defined. Secondly, Second, for thechanging characteristics of source-load uncertainty, agents are trained interactively with the distributed networkin a data-driven manner. Then, through the proximal policy optimization algorithm, agents adaptively learn thescheduling strategy and realize the dynamic scheduling decision of the new energy distribution network system.Finally, the feasibility and superiority of the proposed method are verified by an improved IEEE 33-node simulationsystem.

关键词： Self-adaptive the uncertainty of sources and load deep reinforcement learning dynamic economic scheduling

Investigation of the feasibility of NRAV as a biomarker for hepatocellular carcinoma

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Oncology Research 2024年第4期32卷 717-726页

作者： JUN LIU WENLI LI RUYUE LU JIAQING XU CHUNHUI JIANG JUNLIN DUAN LINGZHI ZHANG guanfu wang JIAXI CHEN Department of Clinical Laboratory Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityLinhaiChina Key Laboratory of System Medicine and Precision Diagnosis and Treatment of Taizhou TaizhouChina Department of Clinical Laboratory Dongguan Hospital of Traditional Chinese MedicineDongguanChina School of Basic Medical Sciences Forensic Medicine Hangzhou Medical CollegeHangzhouChina

The long non-coding RNA,Negative Regulator of Antiviral Response(NRAV)has been identified as a participant in both respiratory virus replication and immune checkpoints,however,its involvement in pan-cancer immune regulation and prognosis,particularly those of hepatocellular carcinoma(HCC),remains unclear.To address this knowledge gap,we analyzed expression profiles obtained from The Cancer Genome Atlas(TCGA)database,comparing normal and malignant tumor tissues.We found that NRAV expression is significantly upregulated in tumor tissues compared to adjacent nontumor tissues.Kaplan-Meier(K-M)analysis revealed the prognostic power of NRAV,wherein overexpression was significantly linked to reduced overall survival in a diverse range of tumor patients.Furthermore,noteworthy associations were observed between NRAV,immune checkpoints,immune cell infiltration,genes related to autophagy,epithelial-mesenchymal transition(EMT),pyroptosis,tumor mutational burden(TMB),and microsatellite instability(MSI)across different cancer types,including HCC.Moreover,NRAV upregulation expression was associated with multiple pathological stages by clinical observations.Furthermore,our investigation revealed a substantial elevation in the expression of NRAV in both HCC tumor tissues and cells compared to normal tissues and cells.The inhibition of NRAV resulted in the inhibition of cell proliferation,migration,and invasion in HCC cells,while also influencing the expression of CD274(PD-L1)and CD44,along with various biomarkers associated with EMT,autophagy,and pyroptosis.The aforementioned results propose NRAV as a promising prognostic biomarker for HCC.

关键词： NRAV Hepatocellular carcinoma Prognosis Biomarker Pan-cancer

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碳中和背景下全球水电发展态势与中国角色

水力发电学报 2024年第4期43卷 1-11页

作者：陈观福汪新槐中国电建集团国际工程有限公司北京100036

自《巴黎协定》签署以来,推动实现全球碳中和已成为国际社会的广泛共识。能源电力的绿色低碳发展是实现碳中和目标的关键,而水电作为具有高度灵活性的可再生能源,将在未来全球能源结构转型中扮演重要角色。由于经济发展水平、水能资源... 详细信息

自《巴黎协定》签署以来,推动实现全球碳中和已成为国际社会的广泛共识。能源电力的绿色低碳发展是实现碳中和目标的关键,而水电作为具有高度灵活性的可再生能源,将在未来全球能源结构转型中扮演重要角色。由于经济发展水平、水能资源禀赋和开发程度不一,当前世界各国水电呈现不同的发展态势。在当前全球能源转型、应对气候变化、环保政策影响以及地缘政治冲突的复杂背景下,全球水电的发展面临着机遇和挑战。中国在水电开发方面取得了举世瞩目的成就,引领了全球水电发展。为此,全球水电行业需要共同发出声音并积极采取措施,深入推进能源革命,从多方面制定发展策略,推动全球水电持续发展,并作为未来新型能源体系的骨干继续发挥作用,助力碳中和目标的顺利实现,促进人与自然和谐共生。

关键词：碳中和气候变化可再生能源水力发电态势分析中国角色

Improving constraint on Ωfrom SDSS using marked correlation functions

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Science China(Physics,Mechanics & Astronomy) 2024年

作者： Limin Lai Jiacheng Ding Xiaolin Luo Yizhao Yang Zihan wang Keshi Liu guanfu Liu Xin wang Yi Zheng Zhaoyu Li Le Zhang Xiaodong Li School of Physics and Astronomy Sun Yat-sen University Zhuhai Campus Department of Astronomy Shanghai Jiao Tong University Department of Astronomy Tsinghua University CSST Science Center for the Guangdong-Hong Kong-Macao Greater Bay Area SYSU Peng Cheng Laboratory

Large-scale structure （LSS） surveys will increasingly provide stringent constraints on our cosmological models.Recently,the density-marked correlation function （MCF） has been introduced,offering an easily computable density-correlation statistic.Simulations have demonstrated that MCFs offer additional,independent constraints on cosmological models beyond the standard two-point correlation （2PCF）.In this study,we apply MCFs for the first time to SDSS CMASS data,aiming to investigate the statistical information regarding clustering and anisotropy properties in the Universe and assess the performance of various weighting schemes in MCFs,and finally obtain constraints on Ωm.Upon analyzing the CMASS data,we observe that,by combining different weights （α=[-0.2,0,0.2,0.6]）,the MCFs provide a tight and independent constraint on the cosmological parameter Ωm,yielding Ωm=0.293±0.006 at the 1σlevel,which represents a significant reduction in the statistical error by a factor of 3.4compared to that from 2PCF.Our constraint is consistent with recent findings from the small-scale clustering of BOSS galaxies(Zhai et al.Astronphys.J.948,99 （2023）) within the 1σlevel.However,we also find that our estimate is lower than the Planck measurements by about 2.6σ,indicating the potential presence of new physics beyond the standard cosmological model if all the systematics are fully corrected.The method outlined in this study can be extended to other surveys and datasets,allowing for the constraint of other cosmological parameters.Additionally,it serves as a valuable tool for forthcoming emulator analysis on the Chinese Space Station Telescope （CSST）.

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Numerical simulation of electroosmosis in unsaturated compacted clay

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Research in Cold and Arid Regions 2021年第5期13卷 394-407页

作者： KangWei Tang Feng Zhang DeCheng Feng guanfu wang School of Transportation Science and Engineering Harbin Institute of Technology73 Huanghe RoadHarbinHeilongjiang 150090China

The moisture content of a road subgrade in cold regions will increase after freeze-thaw cycles,resulting in subgrade strength and stiffness losses.Electroosmosis is widely used in treating saturated soft soils to decrease the moisture content.The induced moisture migration during electroosmosis in unsaturated soil is much more complex than that of saturated soil because of a series of nonlinear changes in soil properties.This study first uses an exponential function to characterize the relationship between electroosmotic permeability and saturation degree.Then,a one-dimensional model is developed to simulate the electroosmosis-induced moisture migration in unsaturated soil.Simulation results show that electroosmosis reduces the saturation degree of the unsaturated soil,indicating that it can be applied to subgrade dewatering.Key parameters such as soil pore size distribution coefficient,air entry value,and effective voltage significantly affect moisture migration.Electroosmotic properties of unsaturated soils are extremely important to the efficiency of electroosmosis.

关键词： electro-osmosis unsaturated clay moisture migration numerical simulation

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差分式声表面波温度应变复合传感器

应用声学 2024年第2期43卷 421-426页

作者：郭大鹏王冠夫史汝川吴润发沈衍白洪涛上海交通大学电子信息与电气工程学院上海200240 国网辽宁省电力有限公司辽阳公司辽阳111000 劭行(苏州)智能科技有限公司上海200240

基于声表面波理论和微扰理论,提出了并研制由3个谐振器组成的差分式声表面波温度应变复合传感器。通过有限元分析软件对AT切和XY切的两种声表面波谐振器进行了仿真,根据其频率-应变响应和频率-温度响应,设计并研制了能够进行温度补偿和... 详细信息

基于声表面波理论和微扰理论,提出了并研制由3个谐振器组成的差分式声表面波温度应变复合传感器。通过有限元分析软件对AT切和XY切的两种声表面波谐振器进行了仿真,根据其频率-应变响应和频率-温度响应,设计并研制了能够进行温度补偿和应力应变补偿的温度应变传感器,传感器的应力测量灵敏度为100 Hz/με,,温度测量灵敏度为80 kHz/℃。该传感器成功应用到了隔离开关的状态监测。现场测试表明,该传感器对隔离开关触指温度和应变的检测可实现对隔离开关工作状态的有效判别,在未来的电力系统设备在线检测中具有重要的应用前景。

关键词：声表面波频率偏移温度应变隔离开关

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铝电解槽焙烧启动方案优化及应用

云南冶金 2024年第3期53卷 229-234页

作者：蒋威武正君李官福王辉唐亮张伟云南文山铝业有限公司云南文山663000

铝电解槽焙烧启动优劣对其后期运行及槽寿命有较大影响,在焙烧启动实践中,对其装炉工序、分流方式、焙烧时间、启动过程、非正常期管控等环节进行了优化,使电解槽单槽的焙烧启动时间减少了26 h,降低电能42640 kW·h,节约成本23206元,经... 详细信息

铝电解槽焙烧启动优劣对其后期运行及槽寿命有较大影响,在焙烧启动实践中,对其装炉工序、分流方式、焙烧时间、启动过程、非正常期管控等环节进行了优化,使电解槽单槽的焙烧启动时间减少了26 h,降低电能42640 kW·h,节约成本23206元,经济效益显著。

关键词：铝电解槽焙烧启动方案优化

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黄腐酸钾提高水稻秧苗耐盐性的作用途径分析

中国水稻科学 2024年第4期38卷 409-421页

作者：候小琴王莹余贝符卫蒙奉保华沈煜潮谢杭军王焕然许用强武志海王建军陶龙兴符冠富中国水稻研究所水稻生物育种全国重点实验室杭州311401 浙江农艺师学院杭州310021 德清县农业技术推广中心德清313200 吉林农业大学农学院长春130118

【目的】盐胁迫是限制水稻等作物产量品质形成的重要环境因子之一,研发能提高水稻耐盐性风险栽培技术有助于保障我国粮食安全。【方法】以日本晴为材料,于水稻秧苗期进行盐胁迫处理,外源喷施适合浓度的黄腐酸钾(Potassium fulvic acid,P... 详细信息

【目的】盐胁迫是限制水稻等作物产量品质形成的重要环境因子之一,研发能提高水稻耐盐性风险栽培技术有助于保障我国粮食安全。【方法】以日本晴为材料,于水稻秧苗期进行盐胁迫处理,外源喷施适合浓度的黄腐酸钾(Potassium fulvic acid,PFA),并取样测定干物质量、光合作用、碳水化合物含量、能量物质、钠钾离子浓度及抗氧酶活性等生理指标。【结果】常规种植条件下,黄腐酸钾对水稻秧苗生长发育影响较小,其株高和干物质量与清水(H2O)处理之间的差异未达显著水平,但盐胁迫处理后黄腐酸钾明显提高了水稻秧苗的干物质量和高。盐胁迫下,黄腐酸钾显著增强水稻秧苗叶片POD和APX活性,降低其相对电导率、过氧化氢及丙二醛含量;另外,黄腐酸钾处理能减轻盐胁迫对叶绿素含量、实际光量子效率、相对电子传递速率和净光合速率的抑制。黄腐酸钾对碳水化合物含量的影响较小,但能减轻盐胁迫对能量代谢的抑制,表现为盐胁迫后水稻叶片非结构性碳水化合物处理间的差异不明显,但黄腐酸钾处理的叶片ATP含量、能荷值以及ATPase活性均显著高于清水处理。相应地,盐胁迫下黄腐酸钾处理的水稻秧苗叶片、茎及根的钠离子浓度显著下降,钾离子浓度则显著上升。【结论】黄腐酸钾可一定程度上提高水稻叶片光合作用,促进ATP的产生及利用,增强抗氧化能力,维持较高的钾离子浓度以及较低的活性氧、钠离子浓度,进而减轻盐胁迫对水稻秧苗的伤害。研究结果可为水稻秧苗耐盐性栽培技术及化学调控物质的研发提供技术及理论支撑。

关键词：水稻(Oryza sativa L.) 盐胁迫黄腐酸钾抗氧化能力能量代谢

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政治现代化视野中各民族交往交流交融析论

西北民族研究 2023年第3期 14-25页

作者：王军钟观福中央民族大学中国民族理论与民族政策研究院北京100081 中央民族大学民族学与社会学学院北京100081

国家政治建设与中国特色解决民族问题的道路为各民族交往交流交融提供了现代政治内涵。从政治哲学角度说,各民族交往交流交融是一种三维政治存在,第一维是规范性交往交流交融,第二维是制度性交往交流交融,第三维是其他政治实践中的交往... 详细信息

国家政治建设与中国特色解决民族问题的道路为各民族交往交流交融提供了现代政治内涵。从政治哲学角度说,各民族交往交流交融是一种三维政治存在,第一维是规范性交往交流交融,第二维是制度性交往交流交融,第三维是其他政治实践中的交往交流交融。三者具有形而上、形而中和形而下的内在逻辑关系,形成政治价值理念—政治制度—政治实践的逻辑闭环。规范性交往交流交融,表现为各民族要内化民族平等、团结、互助、和谐之价值,远景表现为各民族要为未来的民族融合、人类大解放努力奋斗。制度性交往交流交融,以前述规范为前提,表现为各民族在基本政治制度框架内交往交流交融,这是各族人民当家作主、共建伟大祖国的正式制度过程。其他政治实践中的交往交流交融,表现为各族人民共同实现中华民族大解放,共同参与民族区域自治实践以及共建中华民族大家庭。

关键词：政治现代化各民族交往交流交融价值规范政治制度

Magnetic resonance imaging with three-dimensional fast imaging employing steady-state acquisition with phase-cycled and short T1 inversion recovery pulse sequence for evaluating brachial plexus injury

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Neural Regeneration Research 2011年第14期6卷 1097-1102页

作者： Dianxiu Ning Meiyu Sun Bo Sun Li Zhao Weisheng Zhang Lijun wang Shaowu wang Ailian Liu Jianlin Wu Zhijin Lang Di Ning guanfu Liu Xiaochen Ji Xiufeng wang Department of Radiology the First Affiliated Hospital of Dalian Medical University Dalian 116011 Liaoning Province China Department of Mathematics Nanjing University Nanjing 210093 Jiangsu Province China Department of Medical Imaging Dalian Medical University Dalian 116044 Liaoning Province China

There is a large amount of fat in the postganglionic segment of the brachial plexus nerve.The use of short T1 inversion recovery pulse sequence may improve signal strength of the brachial plexus postganglionic segment.The present study revealed that the combination of three-dimensional fast imaging employing steady-state acquisition with phase-cycled and short T1 inversion recovery pulse sequence clearly displayed the anatomical morphology and structure of the brachial plexus nerve,together with maximum intensity projection,volume rendering and other three-dimensional reconstruction techniques.Our results suggested that this method is also suitable for providing accurate assessment and diagnosis of the site,severity and scope of brachial plexus injury.

关键词： brachial plexus i-njury magnetic resonance imaging pulse sequence reconstruction