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Yield-scaled nitrous oxide emissions from nitrogen-fertilized croplands in China: A meta-analysis of contrasting mitigation scenarios

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Pedosphere 2021年第2期31卷 231-242页

作者： Garba ALIYU Jiafa LUO Hong J.DI Deyan LIU Junji YUAN zengming chen Tiehu HE Weixin DING State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) University of Chinese Academy of Sciences Beijing 100049(China) AgResearch Limited Ruakura Research CentreHamilton 3240(New Zealand) Faculty of Agriculture and Life Sciences Lincoln UniversityLincoln 7646(New Zealand)

Nitrogen(N) losses in cropland resulting from the application of synthetic fertilizers decrease crop productivity and exacerbate environmental *** measures, such as reduction in N fertilizer application rates, can have unintentional adverse effects on crop yield. We conducted a meta-analysis of soil N_(2)O emissions from agricultural fields across China under contrasting mitigation scenarios as a novel approach to identify the most effective strategy for the mitigation of emissions of N_(2)O derived from N fertilizer use in China. Current standard agricultural practice was used as a baseline scenario(BS), and 12 potential mitigation scenarios(S1–S12) were derived from the available literature and comprised single and combinations of management scenarios that accounted for crop yield. Mitigation scenarios S6(nitrification inhibitor 3,4-dimethylpyrazole phosphate) and S11(20% reduction in N application rate plus nitrification inhibitor dicyandiamide) in maize, rice, and wheat crops led to an average 56.0% reduction in N_(2)O emissions at the national level, whereas scenario S4(nitrification inhibitor dicyandiamide) led to yield optimization, with a 14.0% increase for maize and 8.0% increase for rice as compared to the BS. Implementation of these most effective mitigation scenarios(S4, S6, and S11) might help China, as a signatory to the 2015 United Nations Framework Convention on Climate Change(Paris Agreement), to achieve a 30% reduction in N_(2)O emissions by 2030.

关键词： crop yield emission factor nitrification inhibitor nitrogen partial factor productivity N_(2)O emission yield-scaled emission

Understanding the combustion behavior of electric bicycle batteries and unveiling its relationship with fire extinguishing

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Journal of Energy Chemistry 2024年第4期91卷 609-618页

作者： Zhanglong Yu Xueling Shen Ran Xu Zheng Wang zengming Wan Mingyang chen Yi Cui Yanyan Fang Xiaoli Ma China Automotive Battery Research Institute Co. Ltd.Beijing 101407China China Grinm Group Co. Ltd.Beijing 100088China Ministry of Industry and Information Technology Equipment Industry Development CenterBeijing 100846China Hefei Guoxuan High-tech Power energy Co. Ltd.Hefei 230000AnhuiChina

In this study,a detailed analysis of the combustion behaviors of the lithium iron phosphate(LFP)and lithium manganese oxide(LMO)batteries used in electric bicycles was *** research included quantitative measurements of the combustion duration,flame height,combustion temperature,heat release rate,and total heat *** results indicated that LMO batteries exhibited higher combustion temperatures of 600–700°C,flame heights of 70–75 cm,a significantly higher heat release rate of40.1 k W(12 Ah),and a total heat release of 1.04 MJ(12 Ah)compared to LFP batteries with the same *** on these experimental results,a normalized total heat release(NORTHR)parameter was proposed,demonstrating good universality for batteries with different *** this parameter,quantitative calculations and optimization of the extinguishing agent dosage were conducted for fires involving these two types of batteries,and the method was validated by extinguishing fires for these two types of battery packs with water-based extinguishing fluids.

关键词： Combustion behavior Electric bicycle Lithium-ion battery Fire extinguishing Normalized total heat release

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Profile of *** chen

Science China(Life Sciences) 2024年第10期67卷 2062-2063页

作者： chen, Songlin Yellow Sea Fisheries Res Inst Qingdao Peoples R China

For decades,*** has been engaged in fish germplasm preservation,sex control and research focusing on molecular breeding for disease *** discovered the first sex-specific molecular marker of fish(chen et al.,2007),deciphered the first fish genome(Chinese tongue sole)in China,revealed the sex determination mechanism in fish(chen et al.,2014),and created molecular sex control *** also discovered the molecular mechanism of metamorphosis in flatfish(Shao et al.,2017)and developed China's first fish disease-resistant breeding gene chip,“YUXIN No.1”.

关键词： technology breeding

新文科建设中财经类高校学科交叉融合培养人才探索

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福建商学院学报 2022年第6期 89-94页

作者：陈增明福建商学院金融学院福建福州350012

财经类高校肩负新文科建设的重大使命,承担培养符合中国特色社会主义新时代要求、具有家国情怀、熟悉国情、国际视野、通晓国际经济规则的时代新人的重大任务。财经类高校传统人才培养存在学科之间的隔阂和封闭现象,培养的人才很难适应... 详细信息

财经类高校肩负新文科建设的重大使命,承担培养符合中国特色社会主义新时代要求、具有家国情怀、熟悉国情、国际视野、通晓国际经济规则的时代新人的重大任务。财经类高校传统人才培养存在学科之间的隔阂和封闭现象,培养的人才很难适应新时代社会发展需要。学科交叉融合是新文科建设的基本要求,在此背景下财经类高校人才培养应注重学科与学科、学科与新技术、学科与新时代交叉融合,真正实现“专业优化”“课程提质”和“模式创新”,培养具有学科交叉融合特色的人文社科优秀人才。

关键词：新文科财经类高校学科交叉融合人才培养

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高职高专商科专业实践教学体系的内涵与实施

国家教育行政学院学报 2006年第8期104卷 75-76页

作者：陈增明福建商业高等专科学校教务处

高职高专实践教学是高职高专院校培养高质量人才的重要教学环节。高职高专院校应该通过完善实践教学大纲、改革实践教学内容、改善实践教学条件等措施来构建科学合理的实践教学体系,保证人才培养目标的实现。

关键词：高职高专教育实践教学体系实践教学大纲

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明代高州府进士群体概述

广东第二师范学院学报 2018年第6期38卷 104-112页

作者：陈友乔陈增铭惠州学院国学研究与传播中心广东惠州516007 华南师范大学历史文化学院广东广州510000

明代高州府进士39人,其数量在县际间的分布不平衡,体现出明显的地域差异。从明代各时期来看,高州府进士数量在明初达到顶峰之后一度下降,其间虽有所反复,但总体呈下降趋势。进士数量变迁主要受到国家文教政策与区域中心转移、府治所在... 详细信息

明代高州府进士39人,其数量在县际间的分布不平衡,体现出明显的地域差异。从明代各时期来看,高州府进士数量在明初达到顶峰之后一度下降,其间虽有所反复,但总体呈下降趋势。进士数量变迁主要受到国家文教政策与区域中心转移、府治所在地的影响与本地人文衰微几大方面的影响。高州府进士在维护地方秩序、进行文化建设、开展公益事业等方面作出了贡献,体现出他们作为地方士绅对地方社会事务的关注及话语权。进士群体与地方社会的良性互动,为高州社会、文化发展奠定了一定的基础。

关键词：明代高州府进士群体

CLICK工程管理理论模型:基于潍柴的成功经验

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系统工程学报 2021年第1期36卷 120-133页

作者：谭旭光焦建玲陈增明潍柴动力股份有限公司山东潍坊261000 合肥工业大学管理学院安徽合肥230009

依据蕴含潍柴动力股份有限公司(简称潍柴)成功发展经验的200多万字的文本资料,运用改进的扎根理论方法,提炼概括了潍柴成功背后的工程管理概念模型,进而从流程视角构建了工程管理理论模型,并以潍柴H1平台开发工程案例加以验证.结果发现... 详细信息

依据蕴含潍柴动力股份有限公司(简称潍柴)成功发展经验的200多万字的文本资料,运用改进的扎根理论方法,提炼概括了潍柴成功背后的工程管理概念模型,进而从流程视角构建了工程管理理论模型,并以潍柴H1平台开发工程案例加以验证.结果发现,潍柴成功的五个关键维度为做正确的事(Correct),配置合适的领导及团队(Leader),必要的检查与修剪(Inspect/Clip),以及始终如一地朝着一个坚定的目标迈进(King).由这五个维度构成的CLICK工程管理理论模型具有逻辑整体性、系统开放性、持续提升性和广泛移植性.

关键词： CLICK 工程管理理论模型改进的扎根理论方法潍柴