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Cyber-physical Integrated Planning of Distribution Networks Considering Spatial-temporal Flexible Resources

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Protection and Control of Modern Power Systems 2024年第3期9卷 142-156页

作者： Shutan Wu Qi wang Qichao Chen changping Yu Yi Tang Southeast University NanjingChina the School of Electrical Engineering Southeast UniversityNanjing 210096China the State Grid Economic and Technological Research Institute CO .LTD.BeijingChina System Automation Research Institute Southeast University

The rapid development of cyber technology and the increase of flexible resources have transformed the distribution network into a cyber-physical distribution system,while the accompanying multidimensional uncertainties have brought new planning challenges.In this paper,an innovative approach is proposed to effectively leverage distributed resources while considering the impact of cyber-physical coupling in distribution network planning.A cyber-physical integrated planning model of the distribution network is proposed,considering the effects of spatial-temporal flexible resources and multi-network coupling.Specifically,a three-layer optimization model is established and analyzed by the simulate anneal-particle swarm optimization algorithm.The upper layer achieves the optimization of the location and configuration of energy storage systems and smart terminal units.The middle layer optimizes the data load migration strategy using spatial-temporal flexible resources to solve the voltage exceeding problem caused by high penetration of distributed power access,while the lower layer optimizes the cyber side communication topology,improving the convergence speed and control performance of the distribution network.Then,the optimization model is analyzed iteratively with objective functions including total planning cost,operation excess loss and distributed control performance.Finally,the effectiveness and economy of the proposed planning scheme is verified and compared to traditional methods.

关键词： Cyber-physical distribution system distributed resources integrated planning model spatialtemporal migration

Progress in electrocatalytic nitrate reduction for green energy: Catalyst engineering, mechanisms, and techno-economic feasibility

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Journal of Energy Chemistry 2024年第8期95卷 380-406页

作者： Hafiz Muhammad Adeel Sharif Hafiz Muhammad Farooq Khan Sadeeq Ullah Yuwei wang Muhammad Ahmad Bo Yang changping Li Muhammad Bilal Asif Research Center for Eco-Environmental Engineering Dongguan University of Technology College of Chemistry and Engineering Shenzhen University FMH College of Medicine and Dentistry School of Environment and Civil Engineering Research Center for Eco-Environment Engineering Dongguan University of Technology Advanced Membranes and Porous Materials Center (AMPMC) Physical Sciences and Engineering (PSE) King Abdullah University of Science and Technology (KAUST)

Ammonia（NH3） is an irreplaceable chemical that has been widely demanded to keep the sustainable development of modern society.However,its industrial production consumes a huge amount of energy and releases extraordinary greenhouse gases（GHGs）,leading to various environmental issues.Achieving the green production of ammonia is a great challenge,which has been extensively pursued in the last decade.In this review,the most promising strategy,electrochemical nitrate reduction reaction（e-NO3RR）,is comprehensively investigated to give a complete understanding of its development and mechanism and provide guidance for future directions.However,owing to the complex reactions and limited selectivity,a comprehensive understanding of the mechanisms is crucial to further development and commercialization.Moreover,NO3-RR is a promising strategy for simultaneous water treatment and NH3production.A detailed overview of the recent progress in NO3-RR for NH3production with nontransition and transition metal based electrocatalysts is summarized.In addition,critical advanced techniques,future challenges,and prospects are discussed to guide future research on transition metal-based catalysts for commercial NH3synthesis by NO3-reduction.

关键词： Ammonia synthesis Electrolysis Green energy Nitrate reduction Pollution to solution Transition metal catalysts

Transcriptomic and metabolomic analysis provides insights into lignin biosynthesis and accumulation and differences in lodging resistance in hybrid wheat

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Journal of Integrative Agriculture 2024年第4期23卷 1105-1117页

作者： Weibing Yang Shengquan Zhang Qiling Hou Jiangang Gao Hanxia wang Xianchao Chen Xiangzheng Liao Fengting Zhang changping Zhao Zhilie Qin Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China Beijing Municipal Key Laboratory of Molecular Genetics of Hybrid Wheat Beijing 100097China

The use of hybrid wheat is one way to improve the yield in the future.However,greater plant heights increase lodging risk to some extent.In this study,two hybrid combinations with differences in lodging resistance were used to analyze the stem-related traits during the filling stage,and to investigate the mechanism of the difference in lodging resistance by analyzing lignin synthesis of the basal second internode(BSI).The stem-related traits such as the breaking strength,stem pole substantial degree(SPSD),and rind penetration strength(RPS),as well as the lignin content of the lodging-resistant combination(LRC),were significantly higher than those of the lodgingsensitive combination(LSC).The phenylpropanoid biosynthesis pathway was significantly and simultaneously enriched according to the transcriptomics and metabolomics analysis at the later filling stage.A total of 35 critical regulatory genes involved in the phenylpropanoid pathway were identified.Moreover,42%of the identified genes were significantly and differentially expressed at the later grain-filling stage between the two combinations,among which more than 80%were strongly up-regulated at that stage in the LRC compared with LSC.On the contrary,the LRC displayed lower contents of lignin intermediate metabolites than the LSC.These results suggested that the key to the lodging resistance formation of LRC is largely the higher lignin synthesis at the later grain-filling stage.Finally,breeding strategies for synergistically improving plant height and lodging resistance of hybrid wheat were put forward by comparing the LRC with the conventional wheat applied in large areas.

关键词： gene expression lignin synthesis lodging-resistance hybrid wheat

Brain circuits for retching-like behavior

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National Science Review 2024年第1期11卷 145-160页

作者： Lifang Huo Zhimin Ye Meiling Liu Ziqing he Meizhu Huang Dapeng Li Qian Wu Qian wang Xiaoqun wang Peng Cao Ji Dong Congping Shang School of Basic Medical Sciences Guangzhou National Laboratory The Fifth Afflliated Hospital Guangzhou Medical University Bioland Laboratory (Guangzhou Regenerative Medicine and health Guangdong Laboratory) Department of Neurobiology School of Basic Medical Sciences Beijing Key Laboratory of Neural Regeneration and Repair Advanced Innovation Center for Human Brain Protection Capital Medical University State Key Laboratory of Cognitive Neuroscience and Learning IDG/McGovern Institute for Brain Research Beijing Normal University changping Life Science Laboratory National Institute of Biological Sciences

Nausea and vomiting are important defensive responses to cope with pathogens and toxins that invade the body. The nucleus of the solitary tract(NTS) is important for initiating these responses. However, the molecular heterogeneities and cellular diversities of the NTS occlude a better understanding of these defensive responses. here, we constructed the single-nucleus transcriptomic atlas of NTS cells and found multiple populations of NTS neurons that may be involved in these defensive responses. Among these, we identified Calbindin1-positive(Calb1+) NTS neurons that are molecularly distinct from Tac1+neurons.These Calb1+neurons are critical for nausea and retching induced by cereulide; an emetic toxin secreted by Bacillus Cereus. Strikingly, we found that cereulide can directly modulate vagal sensory neurons that innervate Calb1+NTS neurons, a novel mechanism distinct from that for nausea and retching induced by Staphylococcal enterotoxin A. Together, our transcriptomic atlas of NTS neurons and the functional analyses revealed the neural mechanism for cereulide-induced retching-like behavior. These results demonstrate the molecular and cellular complexities in the brain that underlie defensive responses to the diversities of pathogens and toxins.

关键词： vomiting nausea nucleus of the solitary tract Calbindin1 neural circuits

Chemical modification of barite for improving the performance of weighting materials for water-based drilling fluids

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Petroleum Science 2024年第1期21卷 551-566页

作者： Li-Li Yang Ze-Yu Liu Shi-bo wang Xian-Bo he Guan-Cheng Jiang Jie Zhang MOE Key Laboratory of Petroleum Engineering State Key Laboratory of Petroleum Resources and ProspectingChina University of Petroleum(Beijing)Changping DistrictBeijing102249China MOE Key CNPC Drilling Research Institute Changping DistrictBeijing102206China

With increasing drilling depth and large dosage of weighting materials,drilling fluids with high solid content are characterized by poor stability,high viscosity,large water loss,and thick mud cake,easier leading to reservoir damage and wellbore instability.In this paper,micronized barite(MB)was modified(mMB)by grafting with hydrophilic polymer onto the surface through the free radical polymerization to displace conventional API barite partly.The suspension stability of water-based drilling fluids(WBDFs)weighted with API barite:mMB=2:1 in 600 g was significantly enhanced compared with that with API barite/WBDFs,exhibiting the static sag factor within 0.54 and the whole stability index of 2.The viscosity and yield point reached the minimum,with a reduction of more than 40%compared with API barite only at the same density.Through multi-stage filling and dense accumulation of weighting materials and clays,filtration loss was decreased,mud cake quality was improved,and simultaneously it had great reservoir protection performance,and the permeability recovery rate reached 87%.In addition,it also effectively improved the lubricity of WBDFs.The sticking coefficient of mud cake was reduced by 53.4%,and the friction coefficient was 0.2603.Therefore,mMB can serve as a versatile additive to control the density,rheology,filtration,and stability of WBDFs weighted with API barite,thus regulating comprehensive performance and achieving reservoir protection capacity.This work opened up a new path for the productive drilling of extremely deep and intricate wells by providing an efficient method for managing the performance of high-density WBDFs.

关键词： Drilling fluids Weighting materials Filtration control Reservoir protection Stability property

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复合地层盾构隧道修建技术创新与展望

现代隧道技术 2024年第2期61卷 90-104页

作者：竺维彬米晋生王晖钟长平广州地铁集团有限公司广州510000 广州轨道交通盾构技术研究所广州510000 中国岩石力学与工程学会工程实例专委会广州510000 广州地铁建设管理有限公司广州510000

自上世纪90年代初,广州地铁率先引进复合式盾构机,尝试在素有“地质博物馆”之称的广州复合地层中施工地铁隧道,历经十余年(1994—2005)全程实践和系统分析,提出和定义了一系列新概念、新观点、新方法,高质量建成地铁100多公里,创立了... 详细信息

自上世纪90年代初,广州地铁率先引进复合式盾构机,尝试在素有“地质博物馆”之称的广州复合地层中施工地铁隧道,历经十余年(1994—2005)全程实践和系统分析,提出和定义了一系列新概念、新观点、新方法,高质量建成地铁100多公里,创立了复合地层盾构施工技术理论体系,拓宽了盾构工法的地质适应性,为盾构工法大规模推广应用、设备国产化和产业化、人才培养奠定了坚实的理论和经验基础。在第二个十年(2006—2015),复合地层盾构施工技术理论进一步完善和发展,针对“泥饼、滞排、喷涌”等复合地层盾构施工的基本风险源或因素,创新研发并应用“衡盾泥”开舱技术,首创“隐蔽岩体环保爆破新技术”,发展了“辅助气压掘进技术”,以及推动双模式、常压刀盘等盾构机新技术的应用,建成一大批长距离、大直径、深埋、复杂地质隧道,中国逐步成为盾构大国。近十年来(2016至今),多模式融合的“三模掘进机”研制和成功应用,“巨厚岩层”覆盖下泥水盾构施工沉陷原因及对策研究等一批行业前沿成果正式发布,丰富了盾构施工技术,助力我国向世界盾构强国迈进。

关键词：复合地层盾构隧道修建技术创新与展望

长链非编码RNA TUG1对宫颈癌细胞放射敏感性的影响

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中华放射肿瘤学杂志 2024年第5期33卷 454-460页

作者：王亚茹张冬丽曲长萍河南大学淮河医院妇产科开封475000

目的探讨长链非编码RNA(lncRNA)牛磺酸上调基因1(TUG1)通过调控自噬对宫颈癌细胞放射敏感性的影响及作用机制。方法构建放射抵抗的宫颈癌细胞株heLa/IR和SiHa/IR。用细胞克隆形成实验评估heLa/IR和SiHa/IR细胞的放射敏感性;实时反转录PC... 详细信息

目的探讨长链非编码RNA(lncRNA)牛磺酸上调基因1(TUG1)通过调控自噬对宫颈癌细胞放射敏感性的影响及作用机制。方法构建放射抵抗的宫颈癌细胞株heLa/IR和SiHa/IR。用细胞克隆形成实验评估heLa/IR和SiHa/IR细胞的放射敏感性;实时反转录PCR(RT-qPCR)检测各组细胞中lncRNA TUG1的表达;蛋白质印迹法(Western blot)检测各组细胞中自噬蛋白Beclin1、微管相关蛋白轻链3(LC3)Ⅱ/LC3Ⅰ、p62的表达。将NC-siRNA、TUG1-siRNA、TUG1-siRNA+雷帕霉素(自噬激活剂)转染至heLa/IR和SiHa/IR细胞,分别命名为NC-siRNA组、TUG1-siRNA组、TUG1-siRNA+雷帕霉素组。用RT-qPCR检测lncRNA TUG1的转染效率;Western blot检测沉默lncRNA TUG1对自噬蛋白表达的影响;流式细胞术分别检测沉默lncRNA TUG1对heLa/IR和SiHa/IR细胞增殖能力和凋亡的影响。采用t检验分析两组之间的差异,单因素方差分析进行多组间的比较。结果与heLa、SiHa细胞比较,heLa/IR、SiHa/IR细胞的存活分数显著升高,细胞中lncRNA TUG1的表达均显著升高,自噬蛋白Beclin1和LC3Ⅱ/LC3Ⅰ蛋白表达均明显升高,p62蛋白表达明显降低,差异均有统计学意义(PheLa/IR、SiHa/IR细胞中lncRNA TUG1的表达、细胞活力明显降低,细胞凋亡率明显升高,Beclin1和LC3Ⅱ/LC3Ⅰ蛋白表达明显降低,p62蛋白表达明显升高,差异均有统计学意义(PheLa/IR细胞中Beclin1和LC3Ⅱ/LC3Ⅰ蛋白表达均明显升高,p62蛋白表达明显降低,细胞活力明显降低,细胞凋亡率明显升高,差异均有统计学意义(P<0.05)。结论沉默lncRNA TUG1可通过调节自噬增强宫颈癌细胞的放射敏感性。

关键词：宫颈肿瘤长链非编码RNA TUG1 放射敏感性自噬凋亡

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灌木篱墙对高架桥街道峡谷内CO扩散的影响

环境工程技术学报 2024年第3期14卷 818-825页

作者：王薇陈昌萍郑翥鹏张祥敏厦门大学建筑与土木工程学院福建省风灾害与风工程重点实验室厦门海洋职业技术学院

为探究灌木篱墙布局对高架桥街道峡谷内部流场及污染物扩散的影响,将灌木篱墙假设为多孔介质,采用标准k-ε模型结合组分运输方程对布置中央灌木篱墙和两侧灌木篱墙的高架桥街谷的底部和桥面道路机动车排放的CO扩散过程进行模拟,并与风... 详细信息

为探究灌木篱墙布局对高架桥街道峡谷内部流场及污染物扩散的影响,将灌木篱墙假设为多孔介质,采用标准k-ε模型结合组分运输方程对布置中央灌木篱墙和两侧灌木篱墙的高架桥街谷的底部和桥面道路机动车排放的CO扩散过程进行模拟,并与风洞试验结果比较。结果表明:数值模拟方法可靠,且与标准街谷不同,高架街谷中的灌木篱墙不仅不会阻碍流场运动,还能加强底部受阻风场与上部风场的对流,有利于底部道路排放污染物的扩散,能够有效降低街谷的整体污染物浓度,改善污染物在背风侧、桥体上方和底部集聚的问题。两侧均设置篱墙时风场的上下对流更强,背风面壁面处CO质量分数降低60%,增设灌木篱墙可作为改善其内部空气污染程度的有效措施。

关键词：高架桥灌木篱墙街道峡谷污染物扩散数值模拟

鱼用催产激素在倒刺鲃属( Spinibarbus )鱼类人工繁殖中的应用进展

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广西科学 2024年第1期31卷 175-181,187页

作者：廖经球李鹏飞王剑黄静何琼玉莫昌平庞海广西科学院广西水产生物技术与现代生态养殖重点实验室广西壮族自治区渔业重大疫病防控与高效健康养殖产业技术工程研究中心广西南宁530007 广西科学院防城港分院北部湾海洋产业研究院广西防城港538001 广西巴马鑫坚实业集团有限公司广西壮族自治区重要鱼类遗传育种与生态渔业产业技术工程研究中心广西河池547500

倒刺鲃属(Spinibarbus)鱼类是我国地方特色鱼类,其人工繁殖必须借助催产激素。近年来,倒刺鲃属鱼类鱼苗需求激增,供不应求。本文从神经系统和内分泌激素对鱼类性腺发育成熟的调节、倒刺鲃属鱼类的繁殖习性、鱼用催产激素种类、倒刺鲃属... 详细信息

倒刺鲃属(Spinibarbus)鱼类是我国地方特色鱼类,其人工繁殖必须借助催产激素。近年来,倒刺鲃属鱼类鱼苗需求激增,供不应求。本文从神经系统和内分泌激素对鱼类性腺发育成熟的调节、倒刺鲃属鱼类的繁殖习性、鱼用催产激素种类、倒刺鲃属鱼类催产激素和使用剂量、催产激素的使用方式和配制等方面综述了鱼用催产激素在倒刺鲃属鱼类人工繁殖中的应用进展,以期为倒刺鲃属鱼类规模化生产提供理论基础和实践方案。

关键词：倒刺鲃光倒刺鲃中华倒刺鲃催产鱼用激素进展