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Knowledge based recognition of harbor target

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Journal of Systems Engineering and Electronics 2006年第4期17卷 755-759页

作者： Zhu bing Li Jinzong cheng Aijun Harbin Inst.of Technology Harbin 150001 P.R. China

A fast knowledge based recognition method of the harbor target in large gray remote-sensing image is presented. First, the distributed features and the inherent feature are analyzed according to the knowledge of harbor targets; then, two methods for extracting the candidate region of harbor are devised in accordance with different sizes of the harbors; after that, thresholds are used to segment the land and the sea with strategies of the segmentation error control; finally, harbor recognition is implemented according to its inherent character （semi-closed region of seawater）.

关键词： multi-scale, candidate region, character extraction threshold segmentation.

Possibilities and challenges of expanding dimensions of waterway downstream of Three Gorges Dam

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Water Science and Engineering 2019年第2期12卷 136-144页

作者： Tao Yan Yun-ping Yang Yi-bing Li Yuan-fang Chai Xiao-bing cheng Key Laboratory of Yellow River Sediment Research Ministry of Water ResourcesZhengzhou 450003China Key Laboratory of Engineering Sediment Tianjin Research Institute for Water Transport EngineeringMinistry of TransportTianjin 300456China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China

The waterway in the middle and lower reaches of the Yangtze River has long been known as the Golden Waterway and has served as an important link in the construction of the Yangtze River Economic Belt.Therefore,expanding its dimensions is a significant goal,particularly given the long-range cumulative erosion occurring downstream of the Three Gorges Dam (TGD),which has been concentrated in the dry river channel.With the regulation of the volume from upstream reservoirs and the TGD,the minimum discharge and water level of the river downstream are increasing,and creating favorable conditions for the increase of the depth of the waterway.The discharge compensation effect during the dry season offsets the decline in the water level of the river channel caused by the down-cutting of part of the riverbed,but the minimum navigable water level of the segment near the dam still shows a declining trend.In recent years,several waterway remediation projects have been implemented in the downstream reaches of the TGD and although the waterway depth and width have been increased,the channel dimensions are still insufficient in the Yichang-Anqing reach (with a total length of 1026 km),as compared to the upstream reservoir area and the deep water channel in the downstream tidal reaches.A comprehensive analysis of the water depth and the number and length of shoals in the waterway indicates that its dimensions can be increased to 4.5 m ×200 m and 6.0 m×200 m in the Yichang-Wuhan and Wuhan-Anqing reaches,respectively.This is also feasible given the remediation technologies currently available,but remediation projects need to be coordinated with those for flood prevention and ecological protection.

关键词： Waterway dimension Condition analysis Three Gorges Project Yichang-Anqing reach Yangtze River

Amorphous electrocatalysts for urea oxidation reaction

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Progress in Natural Science:Materials International 2024年第2期34卷 362-375页

作者： Fenghui Guo Dongle cheng Qian Chen Hao Liu Zhiliang Wu Ning Han bing-Jie Ni Zhijie Chen School of Materials Science and Technology China University of Geosciences Shenzhen Academy of Metrology and Quality Inspection Centre for Technology in Water and Wastewater School of Civil and Environmental Engineering University of Technology Sydney College of Safety and Environmental Engineering Shandong University of Science and Technology Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity Shandong University of Science and Technology Discipline of Chemical Engineering Western Australian School of Mines: Minerals Energy and Chemical Engineering Curtin University Department of Materials Engineering School of Civil and Environmental Engineering The University of New South Wales

Electrochemical urea oxidation reaction(UOR) is a promising alternative to oxygen evolution reaction(OER) for realizing energy-saving hydrogen production. Developing efficient electrocatalysts for UOR becomes a central challenge. Recently, amorphous materials have been extensively used as UOR catalysts because of their numerous defective sites and flexible electronic properties. In this review, recent advancements in the development of amorphous UOR electrocatalysts are analyzed. The UOR mechanism is discussed, and the design of amorphous catalysts is then analyzed. The main catalyst design strategies are illustrated, including nanostructure control,heteroatom doping, composition regulation, and heterostructure construction. Also, electrocatalysts' structureperformance correlation is interpreted. Perspectives in this field are proposed for guiding future studies on the development of high-performance amorphous catalysts towards energy sustainability.

关键词： Catalyst design Component regulation Heteroatom doping Heterostructures Hydrogen energy

GTPBP3基因新发突变致联合氧化磷酸化缺陷症23型(附1例报告及文献复习)

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中国临床神经科学 2024年第2期32卷 187-193页

作者：李琴英关荣源王蓓刘迟程冰苑孙一忞邬剑军上海市静安区中心医院复旦大学附属华山医院静安分院康复医学科上海200040 上海市静安区中心医院复旦大学附属华山医院静安分院神经内科上海200040 上海市静安区中心医院复旦大学附属华山医院静安分院老年中心上海200040 复旦大学附属华山医院神经内科上海200040 国家神经疾病医学中心上海200040

目的总结联合氧化磷酸化缺陷症23型(COXPD23)的临床表型与基因型特征,提高临床医生对该类线粒体病的认识。方法回顾性分析1例COXPD23患儿的临床症状、体格检查、实验室检查、影像学特征等资料,应用全外显子测序明确诊断,并结合复习国内... 详细信息

目的总结联合氧化磷酸化缺陷症23型(COXPD23)的临床表型与基因型特征,提高临床医生对该类线粒体病的认识。方法回顾性分析1例COXPD23患儿的临床症状、体格检查、实验室检查、影像学特征等资料,应用全外显子测序明确诊断,并结合复习国内外相关文献进行讨论。结果患儿女性,5岁8月龄。临床表现为精神运动发育迟缓、智力下降、语言功能障碍,伴高乳酸血症,头颅MRI提示双侧基底节区及背侧丘脑、小脑上脚、小脑半球齿状核内见对称性异常信号影。全外显子测序显示患儿GTPBP3基因c.187C>T/c.776A>G(p.R63*/p.N259S)位点复合杂合突变,分别遗传自患儿父母(均为杂合状态),符合常染色体隐性遗传方式。该患儿为轻型病例,经过对症及康复治疗,病情平稳。随访至今,临床无心力衰竭表现。结论COXPD23罕见,表型复杂,轻型以脑病和高乳酸血症为临床特征,完善基因检测有助于明确诊断。

关键词：联合氧化磷酸化缺陷症23型 GTPBP3基因精神运动发育迟缓高乳酸血症

An analysis of the transcriptional landscape in hypoxia-treated primary nucleus pulposus cells

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Genes & Diseases 2024年第2期11卷 558-560页

作者： Zhicai Peng Zhuo Wang Shuaichi Guo bing Tan Ruichao Cao Shengqiang cheng Jun Chen Chunwang Xie Dehong Mao Zhenming Hu Department of Orthopaedics Yongchuan Traditional Chinese Medicine Hospital of ChongqingChongqing 402160China Department of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400010China Department of Spine Surgery The Third Hospital of MianyangSichuan Mental Health CenterMianyangSichuan 621000China

Intervertebral disc degeneration(IDD)is the main cause of lower back pain.Lower back pain places a huge burden on society,and all current treatments for IDD cannot restore the original function of the intervertebral disc.Proposing new treatments for IDD requires clarifying the mechanisms of IDD.Physiological hypoxia is an important feature of the nucleus pulposus because of its special anatomical structure.Using RNA sequencing(RNA-seq),we obtained the whole transcriptome of nucleus pulposus cells(NPCs)under hypoxia and hypoxia-inducible factor(HIF1A)deletion.Results demonstrated possible effects of oxygen concentration and HIF1A on NPCs.In addition,our results showed that hypoxia can affect lipid metabolism in NPCs.

关键词： structure metabolism degeneration

元宇宙的持存面相:话语·技术·生存之境——基于斯蒂格勒技术哲学的分析

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江汉论坛 2023年第4期 13-18页

作者：程丙复旦大学马克思主义学院上海200433

面对当前元宇宙发展的重重迷思,斯蒂格勒技术批判理路不啻为一种可行的解蔽范式。遵循其思辨逻辑,元宇宙内蕴话语向度、技术向度及人类文明向度的持存面相。在话语之维,社会舆论对元宇宙的预设性解读及发展憧憬,往往聚焦于感知与记忆的... 详细信息

面对当前元宇宙发展的重重迷思,斯蒂格勒技术批判理路不啻为一种可行的解蔽范式。遵循其思辨逻辑,元宇宙内蕴话语向度、技术向度及人类文明向度的持存面相。在话语之维,社会舆论对元宇宙的预设性解读及发展憧憬,往往聚焦于感知与记忆的生长点,期待元宇宙实现人机交互的可感知与想象力无限广延的可记忆。在技术之维,作为一种尚在发轫状态中的前沿技术综合体,元宇宙正凭借对技术系谱集成、现实世界镜像与人类能力增强的赋能,现实地发挥技术义肢所具有的代具性作用。在人类文明之维,由于支撑元宇宙发展的技术基底擅于突破、改写人的存在论边界,显现未来可能性世界的此在意蕴,因此,元宇宙包含关于未来人类生存之境再造的开放性叙事。须处理好技术药理学收敛与一般器官学绽出、数字资本增殖与技术权利争取、人类纪熵化与智识本体化三对矛盾关系,在诸多可能性中辨明人类元宇宙化存在的生成性方向。

关键词：元宇宙持存面相斯蒂格勒技术批判

2022年诺贝尔经济学奖对于化解银行和金融系统风险的启示

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管理评论 2022年第10期34卷 3-8页

作者：程兵中国科学院数学与系统科学研究院北京100190 中国科学院预测科学研究中心北京100190

2022年公布的诺贝尔经济学奖表明,关于银行和金融系统风险控制的研究工作相当重要。本文介绍了三位获奖者从20世纪80年代初期开始展开的重要和原创性工作以及对现代银行监管和金融系统风险控制指引。最后本文结合中国的国情和诺贝尔经... 详细信息

2022年公布的诺贝尔经济学奖表明,关于银行和金融系统风险控制的研究工作相当重要。本文介绍了三位获奖者从20世纪80年代初期开始展开的重要和原创性工作以及对现代银行监管和金融系统风险控制指引。最后本文结合中国的国情和诺贝尔经济学奖获得者的金融风险管理理论,提出未来需要解决的几个重要的金融和经济问题。

关键词：诺贝尔经济学奖银行挤兑银行监管货币供应量信用渠道金融加速器

马克思国家观的出场叙事在何种意义上是总体式的——以《黑格尔法哲学批判》为中心

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社会主义研究 2023年第1期 25-31页

作者：程丙复旦大学马克思主义学院

《黑格尔法哲学批判》是呈现马克思国家观出场的重要文本。以回归文本语境的解读范式来看,马克思国家观的出场叙事是总体式的,而非成分式的。以“现实的规定”的社会政治基础为理论地平,马克思倾向从家庭、市民社会与国家的整体关系中... 详细信息

《黑格尔法哲学批判》是呈现马克思国家观出场的重要文本。以回归文本语境的解读范式来看,马克思国家观的出场叙事是总体式的,而非成分式的。以“现实的规定”的社会政治基础为理论地平,马克思倾向从家庭、市民社会与国家的整体关系中勾勒国家机体总体图景。因循这种面向现实的批判向度,马克思探讨了制度、行政、立法等国家要素与人民之间的应然联系,初步建构起国家治理总体逻辑。面对自身的理论不足,马克思在尝试克服思想限度的过程中,萌发了关于未来国家形态的总体构想,并拟定了整体性的理论计划。

关键词：马克思国家观出场叙事总体性《黑格尔法哲学批判》

Nitrogen‐doped tin oxide electron transport layer for stable perovskite solar cells with efficiency over 23%

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Interdisciplinary Materials 2022年第2期1卷 309-315页

作者： Yanping Mo Chao Wang Xuntian Zheng Peng Zhou Jing Li Xinxin Yu Kaizhong Yang Xinyu Deng Hyesung Park Fuzhi Huang Yi‐bing cheng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanP.R.China Solar Hydrogen Production Lab Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryFoshanP.R.China International School of Materials Science and Engineering Wuhan University of TechnologyWuhanP.R.China Department of Materials Science and Engineering Graduate School of Semiconductor Materials and Devices EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and TechnologyUlsanRepublic of Korea

Tin oxide has made a major breakthrough in high-efficiency perovskite solar cells(PSCs)as an efficient electron transport layer by the low-temperature chemical bath deposition method.However,tin oxide often contains pernicious defects,resulting in unsatisfactory performance.Herein,we develop high-quality tin oxide films via a nitrogen-doping strategy for high-efficiency and stable planar PSCs.The aligned energy level at the interface of doped SnO_(2)/perovskite,more excellent charge extraction and reduced nonradiative recombination contribute to the enhanced efficiency and stability.Correspondingly,the power conversion efficiency of the devices based on N‐SnO_(2) film increases to 23.41% from 20.55% of the devices based on the pristine SnO_(2).The N-SnO_(2) devices show an outstanding stability retaining 97.8% of the initial efficiency after steady-state output at a maximum power point for 600s under standard AM1.5G continuous illumination without encapsulation,while less than 50% efficiency remains for the devices based on pristine SnO_(2).This simple scalable strategy has shown great promise toward highly efficient and stable PSCs.

关键词： electron transport layer N doping perovskite solar cell SnO_(2)