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Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts

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Journal of Energy Chemistry 2024年第6期93卷 289-298,I0008页

作者： Yinuo Wang Yian Wang Qinglan Zhao Hongming Xu Shangqian Zhu Fei Yang Ernest P.Delmo Xiaoyi Qiu chi song Juhee Jang Tiehuai Li Ping Gao MDanny Gu Minhua Shao Advanced Materials Thrust The Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400GuangdongChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Department of Materials Science and Engineering Southern University of Science and Technology of Chin11088 Xueyuan BoulevardShenzhen 518055GuangdongChina Energy Institute and Chinese National Engineering Research Center for Control&Treatment of Heavy Metal PollutionThe Hong Kong University of Science and TechnologyKowloonHong KongChina Department of Chemistry City University of Hong KongTat Chee AvenueKowloonHong KongChina

Urea generation through electrochemical CO_(2) and NO_(3)~-co-reduction reaction(CO_(2)NO_(3)RR)is still limited by either the low selectivity or yield rate of ***,we report copper carbonate hydroxide(Cu_2(OH)_2CO_(3))as an efficient CO_(2)NO_(3)RR electrocatalyst with an impressive urea Faradaic efficiency of45.2%±2.1%and a high yield rate of 1564.5±145.2μg h~(-1)mg_(cat)~(-1).More importantly,H_(2) evolution is fully inhibited on this electrocatalyst over a wide potential range between-0.3 and-0.8 V versus reversible hydrogen *** thermodynamic simulation reveals that the first C-N coupling follows a unique pathway on Cu_2(OH)_2CO_(3) by combining the two intermediates,~*COOH and~**** work demonstrates that high selectivity and yield rate of urea can be simultaneously achieved on simple Cu-based electrocatalysts in CO_(2)NO_(3)RR,and provide guidance for rational design of more advanced catalysts.

关键词： Copper carbonate hydroxide Co-reduction Urea generation C-N coupling DFT calculation

Concomitant epidermal growth factor receptor mutation/c-ros oncogene 1 rearrangement in non-small cell lung cancer: A case report

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World Journal of Clinical Oncology 2024年第7期15卷 945-952页

作者： Gui-Qin Peng Hai-chi song Wan-Yi Chen Department of Pharmacy Chongqing University Cancer HospitalChongqing 400030China

BACKGROUND Epidermal growth factor receptor(EGFR)mutation and c-ros oncogene 1(ROS1)rearrangement are key genetic alterations and predictive tumor markers for non-small cell lung cancer(NSCLC)and are typically considered to be mutually ***/ROS1 co-mutation is a rare event,and the standard treatment appr-oach for such cases is still *** SUMMARY Herein,we report the case of a 64-year-old woman diagnosed with lung adenocar-cinoma,with concomitant EGFR L858R mutation and ROS1 *** patient received two cycles of chemotherapy after surgery,but the disease *** 1-month treatment with gefitinib,the disease progressed ***,after switching to crizotinib,the lesion became ***,crizotinib has been administered for over 53 months with a remarkable treatment *** The efficacy of EGFR tyrosine kinase inhibitors and crizotinib was vastly different in this NSCLC patient with EGFR/ROS1 *** report will aid future treatment of such patients.

关键词： Non-small cell lung cancer Epidermal growth factor receptor C-ros oncogene 1 Co-mutation Treatment strategies Case report

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自然保护地登记单元划分优化方法研究

地理空间信息 2024年第6期22卷 77-79页

作者：宋驰江苏省地质测绘院江苏南京211100

自然资源统一确权登记是贯彻落实党中央、国务院关于生态文明建设决策部署的重要举措。针对自然资源确权登记工作中自然保护地与水流重叠、基础数据与现状存在差异等问题,聚焦自然保护地划分登记单元环节,并结合江苏天目国家森林公园自... 详细信息

自然资源统一确权登记是贯彻落实党中央、国务院关于生态文明建设决策部署的重要举措。针对自然资源确权登记工作中自然保护地与水流重叠、基础数据与现状存在差异等问题,聚焦自然保护地划分登记单元环节,并结合江苏天目国家森林公园自然资源统一确权登记工作,探索了自然保护地登记单元划分优化方法,提出了对于自然资源确权登记实践开展的建议,为后续推进全民所有自然资源资产所有权委托代理机制试点工作提供参考。

关键词：自然资源登记单元划分自然保护地

考虑端部效应的动子无源型Halbach磁悬浮永磁直线电机电磁力分析

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电机与控制学报 2024年第6期28卷 143-151页

作者：张予希颜建虎池松周旭郭保成南京理工大学自动化学院江苏南京210094 南京师范大学电气与自动化工程学院江苏南京210023

针对光刻机等高精确度定位平台无摩擦、无接触、无噪声需求,提出一种采用动子无源型平移和悬浮一体化Halbach磁悬浮永磁直线电机以实现定位平台的无摩擦悬浮及长距离定位运动。为了精确分析该类电机的悬浮力和推力特性,提出一种考虑动... 详细信息

针对光刻机等高精确度定位平台无摩擦、无接触、无噪声需求,提出一种采用动子无源型平移和悬浮一体化Halbach磁悬浮永磁直线电机以实现定位平台的无摩擦悬浮及长距离定位运动。为了精确分析该类电机的悬浮力和推力特性,提出一种考虑动子永磁体端部效应的电机磁场解析模型并采用傅里叶分解法得到Halbach阵列永磁体磁场解析式。基于此磁场解析模型,通过洛伦兹力法得到了动子电磁力解析模型,并基于正交分解法推导了电机悬浮力和推力解耦的电磁力模型。结合有限元仿真对建立的电磁模型进行了对比验证,在此基础上,设计并制作了一台10极12槽样机,通过搭建实验平台进行推力和悬浮力测试,将实验测试值与有限元仿真值和解析值对比验证了所提出方法的准确性和快速性。

关键词：永磁同步直线电机磁悬浮 Halbach阵列解析分析端部效应电磁力

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铝及铝合金制品表面处理工艺浅析

五金科技 2024年第2期52卷 75-77页

作者：宋篪辽宁省检验检测认证中心、辽宁省产品质量监督检验院沈阳110014

本文简要分析了铝及铝合金制品的表面处理工艺,包括喷砂处理、抛光处理、拉丝处理、阳极氧化等多种表面处理工艺。这些表面处理方法旨在改善铝合金的外观质量、提高耐腐蚀性、增强涂层附着力,并满足不同应用场景的需求。文章概述了各种... 详细信息

本文简要分析了铝及铝合金制品的表面处理工艺,包括喷砂处理、抛光处理、拉丝处理、阳极氧化等多种表面处理工艺。这些表面处理方法旨在改善铝合金的外观质量、提高耐腐蚀性、增强涂层附着力,并满足不同应用场景的需求。文章概述了各种处理方法的原理、特点和应用范围,同时讨论了不同处理工艺对铝合金性能的整体影响规律。通过合理的表面处理,可以有效提高铝及铝合金制品的使用寿命和附加值,为五金行业的产品质量提升和竞争力增强提供支持。

关键词：铝及铝合金表面处理阳极氧化

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碳纳米管改性铝合金制备工艺研究进展

五金科技 2024年第1期52卷 68-70页

作者：宋篪辽宁省检验检测认证中心辽宁省产品质量监督检验院沈阳110014

文章综述了碳纳米管改性铝合金的制备工艺,包括粉末烧结工艺、搅熔铸造工艺、高速摩擦工艺和高压锻造工艺等,其次分析了各种制备工艺存在的主要问题,并针对碳纳米管分散性差、与铝合金基材湿润性差的根本问题给出了解决方案,最后展望了... 详细信息

文章综述了碳纳米管改性铝合金的制备工艺,包括粉末烧结工艺、搅熔铸造工艺、高速摩擦工艺和高压锻造工艺等,其次分析了各种制备工艺存在的主要问题,并针对碳纳米管分散性差、与铝合金基材湿润性差的根本问题给出了解决方案,最后展望了碳纳米管改性铝合金制备工艺的研究方向。

关键词：碳纳米管铝合金分散性

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稀土元素在铝合金中的应用研究

五金科技 2024年第3期52卷 78-80页

作者：庄佳钰宋篪辽宁省检验检测认证中心辽宁省产品质量监督检验院沈阳110014

在铸造铝合金中添加4.4%~5%的稀土元素,可大幅提升铝合金的综合性能,特别是室温力学性能,稀土铝合金广泛的应用于飞机、汽车等复杂零部件的制造。本文简要介绍了铝合金中稀土元素的增强作用,包括微合金化作用、净化作用和变质作用,分析... 详细信息

在铸造铝合金中添加4.4%~5%的稀土元素,可大幅提升铝合金的综合性能,特别是室温力学性能,稀土铝合金广泛的应用于飞机、汽车等复杂零部件的制造。本文简要介绍了铝合金中稀土元素的增强作用,包括微合金化作用、净化作用和变质作用,分析了各种增强作用的微观机制,为开发更多系列的稀土铝合金提供理论支撑。

关键词：稀土铝合金微合金化作用净化作用变质作用

Survivability assessment of spacecraft impacted by orbit debris

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Defence Technology（防务技术） 2021年第3期17卷 961-970页

作者： Di-qi Hu Bao-jun Pang Run-qiang chi Zhang-chi song Hao Wu Hypervelocity Impact Research Center Harbin Institute of Technology150080HarbinChina Beijing Institute of Aerospace Automatic Control 100854BeijingChina Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of Sciences130033ChangchunChina

To help optimize the spacecraft design and reduce the risk of spacecraft mission failure, a new approach to assess the survivability of spacecraft in orbit is presented here, including the following three steps: 1)Sensitivity Analysis of spacecraft. A new sensitivity analysis method, a ray method based on virtual outer wall, is presented here. Using rays to simulate the debris cloud can effectively address the component shadowing issues. 2) Component Vulnerability analysis of spacecraft. A function "Component functional reduction degree-Component physical damage degree" is provided here to clearly describe the component functional reduction. 3) System-level Survivability Assessment of spacecraft. A new method based on expert knowledge reasoning, instead of traditional artificial failure tree method, is presented here to greatly improve the efficiency and accuracy of calculation.

关键词： Survivability Hypervelocity impact Orbit debris Ray method

Whole Genome Duplication of Intra- and Inter-chromosomes in the Tomato Genome

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Journal of Genetics and Genomics 2012年第7期39卷 361-368页

作者： chi song Juan Guo Wei Sun Ying Wang Key Laboratory of Plant Germplasm Enhancement and Speciality Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubei 430074China Graduate University of chinese Academy of Sciences Beijing 100049China South china Botanical Garden Chinese Academy of SciencesGuangzhouGuangdong 510650China

Whole genome duplication （WGD） events have been proven to occur in the evolutionary history of most angiosperms. Tomato is considered a model species of the Solanaceae family. In this study, we describe the details of the evolutionary process of the tomato genome by detecting collinearity blocks and dating the WGD events on the tree of life by combining two different methods： synonymous substitution rates （Ks） and phylogenetic trees. In total, 593 collinearity blocks were discovered out of 12 pseudo-chromosomes con- structed. It was evident that chromosome 2 had experienced an intra-chromosomat duplication event. Major inter-chromosomal dupli- cation occurred among all the pseudo-chromosome. We calculated the Ks value of these collinearity blocks. Two peaks of Ks distribution were found, corresponding to two WGD events occurring approximately 36-82 million years ago （MYA） and 148--205 MYA. Additionally, the results of phylogenetic trees suggested that the more recent WGD event may have occurred after the divergence of the rosidasterid clade, but before the major diversification in Solanaceae. The older WGD event was shown to have occurred before the divergence of the rosid-asterid clade and after the divergence of rice-Arabidopsis （monocot-dicot）.

关键词： Whole genome duplication Collinearity block Phylogenetic tree