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Green Peddle Power in Beijing
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作者 LU JIAJUN 《China Today》 2025年第6期60-62,共3页
Two environmentalists using bamboo bicycles to promote green transportation.THE exhaust emissions generated by transporting the world’s population on a daily basis are one of the main sources of greenhouse gases.Vehi... Two environmentalists using bamboo bicycles to promote green transportation.THE exhaust emissions generated by transporting the world’s population on a daily basis are one of the main sources of greenhouse gases.Vehicles such as cars,subways,and motorcycles,all produce carbon emissions. 展开更多
关键词 greenhouse gases green transportation exhaust emissions carbon emissions greenhouse gasesvehicles bamboo bicycles green peddle power
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China’s Green Shift
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《China Today》 2025年第6期24-25,共2页
As a responsible major developing country,China was one of the first countries to sign the Paris Agreement,which represents the general direction of the world’s transition toward green and low-carbon development.Over... As a responsible major developing country,China was one of the first countries to sign the Paris Agreement,which represents the general direction of the world’s transition toward green and low-carbon development.Over the years since then,the country has actively advanced its efforts in building ecological civilization,and proactively implemented the principle of innovative,coordinated,green,open,and shared development,pushing for a comprehensive green transition of its society and economy amid high-quality development. 展开更多
关键词 green low carbon development paris agreementwhich Paris Agreement high quality development coordinated development green shift green transition ecological civilization
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Green Rural Revival in Zhejiang
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作者 LI PINGSHU 《China Today》 2025年第7期62-65,共4页
This eastern province sets an example in rural revitalization through green development.THE Green Rural Revival Program is an innovative initiative launched by east China’s Zhejiang Pro-vince.It aims to promote compr... This eastern province sets an example in rural revitalization through green development.THE Green Rural Revival Program is an innovative initiative launched by east China’s Zhejiang Pro-vince.It aims to promote comprehensive rural revitalization by focusing on environmental conservation and sustainable development. 展开更多
关键词 environmental conservation green rural revival sustainable development green rural revival program green developmentthe rural revitalization
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From‘GBA Initiative’To‘ZGC Consensus’ Open science as the core engine of scientific and technological innovation in the global green energy industry
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作者 Tian Yuan 《China Report ASEAN》 2025年第5期47-47,共1页
Today,green and low-carbon development and technological innovation are mingling in what may emerge as the key narrative for human civilization.I was fortunate enough to have attended the 2024 Greater Bay Area(GBA)Sci... Today,green and low-carbon development and technological innovation are mingling in what may emerge as the key narrative for human civilization.I was fortunate enough to have attended the 2024 Greater Bay Area(GBA)Science Forum’s Green Energy Industry Innovation Sub-Forum and then the 2025 Zhongguancun Forum(ZGC Forum)Annual Conference. 展开更多
关键词 human civilization open science green low carbon development technological innovation GBA Science Forum global green energy industry green energy
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Green Growth on the Rise
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作者 ZHAO PIAO 《China Today》 2025年第6期26-29,共4页
As the world grapples with climate change and environmental degradation,green development emerges as both a necessity and an opportunity for sustainable progress.
关键词 sustainable progress environmental degradation green growth green development environmental degradationgreen development climate change
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基于SYBR GreenⅡ的BVDV NS3基因实时荧光定量PCR检测方法的建立与应用 被引量:2
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作者 李阳 张世勋 +4 位作者 赫鸣睿 刘珊珊 岳山 刘宇 朱战波 《黑龙江八一农垦大学学报》 2025年第2期23-31,共9页
为了建立基于SYBR GreenⅡ的牛病毒性腹泻病毒(BVDV)NS3基因实时荧光定量PCR(qRT-PCR)检测方法,设计并筛选了BVDV NS3基因的qRT-PCR引物,建立了BVDV NS3 qRT-PCR检测方法,并利用CFX96和猪警-2000 qRT-PCR仪检测了临床牛血清样本。结果显... 为了建立基于SYBR GreenⅡ的牛病毒性腹泻病毒(BVDV)NS3基因实时荧光定量PCR(qRT-PCR)检测方法,设计并筛选了BVDV NS3基因的qRT-PCR引物,建立了BVDV NS3 qRT-PCR检测方法,并利用CFX96和猪警-2000 qRT-PCR仪检测了临床牛血清样本。结果显示,筛选出1对特异性好的引物,CFX96和猪警-2000 qRT-PCR的标准品最小检出值分别为1×10^(1)copies·μL^(-1)和1×10^(2) copies·μL^(-1),特异性和重复性均良好,且临床血清样本的检测结果准确、一致。研究为BVDV检测提供了技术手段。 展开更多
关键词 牛病毒性腹泻病毒 NS3基因 实时荧光定量PCR SYBR green
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禽痘病毒SYBR Green I荧光定量PCR检测方法的建立
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作者 叶伟成 陈柳 +6 位作者 倪征 云涛 华炯钢 霍苏馨 付媛 张存 朱寅初 《中国预防兽医学报》 北大核心 2025年第8期813-819,共7页
为建立禽痘病毒(APV)快速灵敏的荧光定量PCR(qPCR)检测方法,本研究经PCR扩增鸡痘病毒(FPV,APV中的主要病毒)高度保守核心基因P4b,构建重组质粒标准品pMD19-FPV-P4b,经PCR与测序鉴定正确后作为模板,采用设计的qPCR通用型引物FPV-JC-F/R(... 为建立禽痘病毒(APV)快速灵敏的荧光定量PCR(qPCR)检测方法,本研究经PCR扩增鸡痘病毒(FPV,APV中的主要病毒)高度保守核心基因P4b,构建重组质粒标准品pMD19-FPV-P4b,经PCR与测序鉴定正确后作为模板,采用设计的qPCR通用型引物FPV-JC-F/R(根据分析比对不同种属27种APV A分支高度保守的核心基因P4b设计),利用方阵法优化各反应条件,初步建立检测APV的qPCR方法。将重组质粒pDM19-FPV-P4b 10倍倍比稀释后作为模板,利用优化的反应条件经qPCR扩增,以拷贝数的对数值为纵坐标,Ct值为横坐标绘制标准曲线,结果显示,标准曲线的R^(2)为0.9995,质粒标准品在3.53拷贝/μL~3.53×10^(8)拷贝/μL范围内与各自的Ct值呈良好的线性关系。采用建立的qPCR方法检测APV及禽类常见病毒,评估其特异性;采用该qPCR和常规PCR方法分别检测10倍倍比稀释的FPV弱毒疫苗(9.75×10^(6)TCID_(50)/mL~9.75×10^(-1)TCID_(50)/mL)及质粒标准品(3.53×107拷贝/μL~3.53拷贝/μL),评估该方法的敏感性;以不同浓度的质粒标准品作为模板,于同一时间和不同时间分别利用该qPCR方法检测,评估该方法的重复性。结果显示,除FPV与鸽痘病毒(PPV)检测结果为阳性外,新城疫病毒(NDV)、H9亚型禽流感病毒(H9 AIV)、鸡传染性法氏囊病毒(IBDV)、鸡传染性喉气管炎病毒(ILTV)、禽腺病毒4型(FAdV-4)、火鸡疱疹病毒(HVT)等均为阴性结果,特异性强;该方法对FPV弱毒疫苗与质粒标准品的检测限分别为9.75 TCID_(50)/mL和3.53拷贝/μL,常规PCR对FPV弱毒疫苗和质粒标准品的检测限分别为975 TCID_(50)/mL和3.53×10^(2)拷贝/μL,组内组间重复性试验的变异系数均小于1.57%,重复性好。采用该方法和常规PCR方法同时检测186份临床疑似患鸡痘鸡的病料样品(鸡咽喉部痘疱结节、痘痂样品41份;肺、肝、肾脏样品各32份;咽拭子样品49份),结果显示,qPCR的阳性检出率为65.1%(121/186),常规PCR的阳性检出率为55.9%(104/186),二者检测结果的阳性符合率、阴性符合率与总符合率分别为100%、79.3%(65/82)与90.9%(169/186)。综上,本研究建立的检测APV的qPCR方法特异性强、敏感性高、重复性和稳定性好、适用范围更广,可以用于临床各种样品的快速检测,为APV的临床检测和流行病学调查提供了一种便捷的新的技术手段。 展开更多
关键词 禽痘病毒 SYBR green I 荧光定量PCR 临床检测
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基于Green函数的轮胎冲击载荷特性反演方法
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作者 师桂杰 李强 王德禹 《中国舰船研究》 北大核心 2025年第3期165-173,共9页
[目的]旨在通过结构响应间接识别轮胎冲击载荷及其分布特性,为甲板设计与安全评估提供依据,提出一种基于Green函数的载荷反演方法。[方法]以某船甲板加筋板为研究对象,利用Green函数将冲击载荷表示为单位脉冲载荷的叠加,通过有限元仿真... [目的]旨在通过结构响应间接识别轮胎冲击载荷及其分布特性,为甲板设计与安全评估提供依据,提出一种基于Green函数的载荷反演方法。[方法]以某船甲板加筋板为研究对象,利用Green函数将冲击载荷表示为单位脉冲载荷的叠加,通过有限元仿真得到Green核函数矩阵,并结合广义交叉验证准则(GCV)的Tikhonov正则化方法,建立载荷反演模型。针对单个轮胎及多个轮胎冲击工况,分析多源载荷对反演精度的影响。对于凸型、马鞍型和凹型3种典型的轮印载荷分布形式,通过等效划分受力区域并施加单位脉冲载荷,完成载荷分布特性的反演。[结果]结果表明,所提方法能够有效识别轮胎冲击载荷的时间历程及其分布特性,反演相对误差均小于5%。其中,基于应变和位移响应的反演精度较高,误差低于2%;即使在5%噪声干扰下,反演载荷仍然与实际载荷基本一致。[结论]所提方法解决了冲击载荷作用时间短、结构响应范围有限以及多源载荷联合作用带来的反演难题,为实船轮印载荷识别提供了新思路,具有重要的工程应用价值。 展开更多
关键词 甲板设计 结构响应 动力响应 加筋板 承载能力 冲击载荷 轮印载荷分布 green函数 载荷反演
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引入Green函数实现电阻率法总电位高精度三维正演
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作者 熊彬 熊心如 +2 位作者 徐志锋 陆裕国 张健辉 《地球物理学报》 北大核心 2025年第7期2786-2791,共6页
在电阻率法正演中,采用有限单元法数值求解总电位V时,关于总电位V的泛函中含有点电流源项,而位函数V在源点处具有奇异性.为了有效模拟点电流源邻近总电位V的变化情况,人们采用线性插值、二次插值甚至更高次插值,也难以完全消除其影响,... 在电阻率法正演中,采用有限单元法数值求解总电位V时,关于总电位V的泛函中含有点电流源项,而位函数V在源点处具有奇异性.为了有效模拟点电流源邻近总电位V的变化情况,人们采用线性插值、二次插值甚至更高次插值,也难以完全消除其影响,均不能收获令人满意的精度.本文将满足Possion方程的Green函数引入稳定电流场所满足的边值问题,借助Galerkin加权余量法构建有限单元法控制方程,进而实现基于总电位的高精度电阻率法三维正演.理论计算结果表明,本文提出算法的稳定性颇佳,对网格的依赖性低,且计算精度与基于异常电位正演的计算精度相当. 展开更多
关键词 电阻率法 正演 有限单元法 green函数 总电位
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基于标量Green函数的各向异性介质电阻率法三维正演
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作者 徐志锋 熊心如 +3 位作者 熊彬 石靖 陆裕国 李明晟 《地球物理学报》 北大核心 2025年第10期4005-4011,共7页
自然条件下,有些金属矿床赋存于沉积、变质岩层中.由于沉积旋回和构造挤压,大多数沉积岩和一部分变质岩往往具有层状结构,它们的导电性具有明显的方向性,有时垂直层理方向的电阻率ρn比沿着层理方向的电阻率ρt大好几倍.岩层的各向异性... 自然条件下,有些金属矿床赋存于沉积、变质岩层中.由于沉积旋回和构造挤压,大多数沉积岩和一部分变质岩往往具有层状结构,它们的导电性具有明显的方向性,有时垂直层理方向的电阻率ρn比沿着层理方向的电阻率ρt大好几倍.岩层的各向异性使得理想条件下(均匀、各向同性)的电场分布规律发生畸变,直接导致电法勘查后续推断解释工作复杂化.基于此,本文针对电导率各向异性介质开展电阻率法三维正演研究.首先,引入标量Green函数,形成各向异性介质中Green函数的全新表达,消除点电流源附近场的奇异性,实现了面向总电位的各向异性地电模型中电阻率法数值模拟;其次,通过均匀半空间各向异性模型验证文中提出算法的计算精度;然后,定义各向异性电阻率法视电阻率,利用垂直接触面上的Wenner剖面曲线展示本文算法的适用性;最后,以地下赋存方形目标体为例,计算视电阻率,考察介质电导率非各向同性对电阻率响应的影响,识别地下介质各向异性特征.模型计算结果表明,本文研究成果一方面降低了传统算法的复杂度,一方面大幅度提高了计算精度,有望在电法勘查的其他分支类方法中获得积极应用. 展开更多
关键词 电阻率法 各向异性 正演 green函数 总电位
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Green公式、Gauss公式和Stokes公式的证明
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作者 楼红卫 《大学数学》 2025年第4期1-9,共9页
在数学分析课程中,Green公式、Gauss公式和Stokes公式是曲线曲面积分中最重要的几个定理.但在通常的教材中,给出相关定理时,要么只是考虑了条件非常特殊时的情形,要么省略了证明或对于证明语焉不详.文章试图在数学分析课程通常会关心的... 在数学分析课程中,Green公式、Gauss公式和Stokes公式是曲线曲面积分中最重要的几个定理.但在通常的教材中,给出相关定理时,要么只是考虑了条件非常特殊时的情形,要么省略了证明或对于证明语焉不详.文章试图在数学分析课程通常会关心的条件下,诸如曲线或曲面是分片连续可微且可定向的条件下,来给出相关定理的严谨而完整的证明. 展开更多
关键词 green公式 GAUSS公式 STOKES公式
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利用Green函数求解二阶线性非齐次微分方程
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作者 王治国 《高等数学研究》 2025年第4期122-125,共4页
针对二阶线性非齐次微分方程的初值问题,边值问题,半无界问题和全空间问题,介绍了Green函数的求解方法,实例说明了该方法的应用.
关键词 二阶线性微分方程 green函数 STURM-LIOUVILLE问题
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Saving Our Citrus:Scientists Discover a Way to Fight Deadly Greening Disease
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作者 YAN Fusheng 《Bulletin of the Chinese Academy of Sciences》 2025年第2期103-106,共4页
A devastating disease called Huanglongbing(HLB) or citrus green is wiping out citrus trees across the globe. But we are seeing new hope. Scientists have recently uncovered a hidden battle happening inside citrus plant... A devastating disease called Huanglongbing(HLB) or citrus green is wiping out citrus trees across the globe. But we are seeing new hope. Scientists have recently uncovered a hidden battle happening inside citrus plants. Understanding this microscopic tug-of-war could be the key to rescuing our beloved oranges, lemons, and grapefruits. 展开更多
关键词 HUANGLONGBING microscopic battle rescue efforts citrus green citrus greening citrus plants
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Urban Resilience Improvement Strategy:A Multi-dimensional Efficiency Study of Roof Greening and Vertical Greening
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作者 YUE Wenyu XU Haizhou YANG Xin 《Journal of Landscape Research》 2025年第1期1-6,共6页
As complex and diverse ecosystems,cities encounter numerous challenges posed by both nature and humanity.Architecture,serving as the framework and texture of the city,has undoubtedly emerged as a crucial guide in addr... As complex and diverse ecosystems,cities encounter numerous challenges posed by both nature and humanity.Architecture,serving as the framework and texture of the city,has undoubtedly emerged as a crucial guide in addressing urban resilience issues.Roof greening and vertical greening of buildings,as ecofriendly urban green infrastructures,hold significant potential for mitigating these challenges.This paper explores the methods and strategies for implementing roof greening and vertical greening as solutions to enhance urban resilience.The objective is to offer valuable insights for sustainable urban development,encourage the widespread adoption of these greening techniques in urban construction,and ultimately strengthen urban resilience. 展开更多
关键词 Urban resilience Roof greening Vertical greening Disaster response SUSTAINABILITY
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From Mines to Tea Mountains:One Village’s Twenty-Year Path of Green Transformation
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作者 YANG SHUANGSHUANG 《China Today》 2025年第10期68-70,共3页
Once a mining village,Jingshan in Hangzhou has reinvented itself over the past 20 years as a thriving model of green transformation.STROLLING through a village named Jingshan located in Hangzhou City,east China’s Zhe... Once a mining village,Jingshan in Hangzhou has reinvented itself over the past 20 years as a thriving model of green transformation.STROLLING through a village named Jingshan located in Hangzhou City,east China’s Zhejiang Province,one will notice the image of a“little tea farmer”wearing a bamboo hat and carrying a tea basket in many places. 展开更多
关键词 mining village green transformationstrolling green transformation bamboo hat village development tea cultivation tea basket environmental sustainability
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Sao Paulo's green guardian
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作者 苏琳 《疯狂英语(新读写)》 2025年第2期54-55,77,78,共4页
Helio da Silva,a retired business executive from Brazil,single⁃handedly planted over 41,000 trees in his hometown of Sao Paulo over the last two decades.Flying over the Brazilian metropolis of Sao Paulo,it's tough... Helio da Silva,a retired business executive from Brazil,single⁃handedly planted over 41,000 trees in his hometown of Sao Paulo over the last two decades.Flying over the Brazilian metropolis of Sao Paulo,it's tough to miss the 3.2-kilometer⁃long and 100⁃meter⁃wide green strip of trees wedged between two of the city's busiest roads. 展开更多
关键词 single handedly retired business executive urban greening Sao Paulo green strip tree planting
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Integrating Marine Renewable Energy with Green Hydrogen Production from Seawater:Feasibility and Future Prospects for Sustainable Energy Development in Indonesia
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作者 Wanda Rulita Sari Gunawan Gunawan +1 位作者 Kurniawan T.Waskito Dimas Angga Fakhri Muzhoffar 《哈尔滨工程大学学报(英文版)》 2025年第5期925-946,共22页
This study examines the feasibility and prospects of integrating marine renewable energy(MRE)with green hydrogen production in Indonesia.As global energy demand increases and the environmental impacts of fossil fuels ... This study examines the feasibility and prospects of integrating marine renewable energy(MRE)with green hydrogen production in Indonesia.As global energy demand increases and the environmental impacts of fossil fuels become more pronounced,the search for sustainable alternatives intensifies.Indonesia,with its extensive maritime resources,presents a unique opportunity to harness tidal wave and offshore wind energy for green hydrogen production from seawater.This research explores various electrolysis methods,particularly those that eliminate the need for desalination,thereby enhancing efficiency and reducing costs.The findings indicate that advanced electrolysis techniques can significantly lower energy and production costs while maintaining environmental sustainability by avoiding harmful chemicals and ensuring minimal ecological footprints.Moreover,the utilization of Indonesia’s extensive marine resources can foster energy independence,boost economic growth,and lower carbon emissions,which highlights the need for ongoing research and optimization to improve the economic and environmental feasibility of these technologies.This review article provides an in-depth analysis of the potential for MRE and green hydrogen production in Indonesia,outlining a viable path toward sustainable energy development. 展开更多
关键词 Marine renewable energy green hydrogen green hydrogen production Seawater electrolysis Sustainable energy
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China-Portugal Green Strategic Synergy in Bluetech and Clean Energy Integration
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作者 Zhou Jie 《China Oil & Gas》 2025年第3期3-8,共6页
As global climate governance moves into the implementation phase,the integration of bluetech and clean energy has emerged as a key driver of green transition.On the occasion of the 50th anniversary of China-EU diploma... As global climate governance moves into the implementation phase,the integration of bluetech and clean energy has emerged as a key driver of green transition.On the occasion of the 50th anniversary of China-EU diplomatic relations,China and Portugal have built a multi-level cooperation framework in the“ocean+clean energy”domain,leveraging complementary resource endowments,technological synergies,and policy alignment. 展开更多
关键词 global climate governance china eu green transition integration bluetech clean energy green transitionon policy alignment clean energy diplomatic relations
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Cultivating a Green Future
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作者 NI YANSHUO 《ChinAfrica》 2025年第5期42-43,共2页
Green Technology Confucius Institute enhances tech cooperation and exchanges between China and South Africa.Nhokwara Blessing calls herself a blessed girl.The 19-year-old Zimbabwean is studying Chinese language and Ch... Green Technology Confucius Institute enhances tech cooperation and exchanges between China and South Africa.Nhokwara Blessing calls herself a blessed girl.The 19-year-old Zimbabwean is studying Chinese language and Chinese culture in her university.She was born and brought up in Thohoyandou in Limpopo Province in the northern part of South Africa,bordering Zimbabwe. 展开更多
关键词 Zimbabwean student chinese language chinese culture green technology enhances tech cooperation exchanges EXCHANGES Chinese language culture Confucius Institute green technology confucius institute
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Research on the Impact of Green Finance on Industrial Structure Optimization:Based on an Empirical Study of the Six Provinces in Central China
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作者 Li Liu Ya Yu 《Proceedings of Business and Economic Studies》 2025年第4期45-51,共7页
Green finance,as an important policy to promote high-quality economic development,has become a focus of attention in the academic and policy circles for its promotion of industrial structure optimization.Based on the ... Green finance,as an important policy to promote high-quality economic development,has become a focus of attention in the academic and policy circles for its promotion of industrial structure optimization.Based on the data of six provinces in Central China from 2010 to 2023,this paper constructs a comprehensive index of green finance development by using entropy value method and empirically analyses the impact of green finance on industrial structure optimization.The results show that the level of green finance development has a significant contribution to the optimization of the industrial structure in the central region.Accordingly,this study provides suggestions for deepening green finance reform and accelerating industrial transformation and upgrading. 展开更多
关键词 green finance Industrial structure optimization green finance development index
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