检索结果-南通市图书馆

Expanding carbon neutrality strategies:Incorporating out-ofboundary emissions in city-level frameworks

Environmental Science and Ecotechnology 2024年第4期20卷 145-153页

作者： Zhe Zhang mingyu li li Zhang Yunfeng Zhou Shuying Zhu Chen Lv Yixuan Zheng Bofeng Cai Jinnan Wang Center for Carbon Neutrality Chinese Academy of Environmental PlanningBeijing100043China School of Environment Tsinghua UniversityBeijing100084China Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing100084China R&D and International Cooperation Office Chinese Academy of Environmental PlanningBeijing100043China School of Economics and Management Beijing University of Chemical TechnologyBeijing100029China Center of Air Quality Simulation and System Analysis Chinese Academy of Environmental PlanningBeijing100043China

Cities are increasingly vital in global carbon mitigation efforts,yet few have specifically tailored carbon neutrality ***,out-of-boundary indirect greenhouse gas(GHG)emissions,aside from those related to electricity and heat imports,are often overlooked in existing pathways,despite their significance in comprehensive carbon mitigation *** this gap,here we introduce an integrated analysis framework focusing on both production and consumption-related GHG *** to Wuyishan,a service-oriented city in Southern China,this framework provides a holistic view of a city's carbon neutrality pathway,from a full-scope GHG emission *** findings reveal the equal importance of carbon reduction within and outside the city's boundaries,with out-of-boundary emissions accounting for 42%of Wuyishan's present total GHG *** insight highlights the necessity of including these external factors in GHG accounting and mitigation strategy *** framework serves as a practical tool for cities,particularly in developing countries,to craft effective carbon neutrality roadmaps that encompass the full spectrum of GHG emissions.

关键词： Greenhouse gas emissions Full-scope emission accounting Carbon neutrality pathway City-level

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Additively Manufactured Flexible Electronics with Ultrabroad Range and High Sensitivity for Multiple Physiological Signals'Detection

引用

Research 2022年第4期2022卷 707-717页

作者： Huanhuan Feng Yaming liu liang Feng limeng Zhan Shuaishuai Meng Hongjun Ji Jiaheng Zhang mingyu li Peng He Weiwei Zhao Jun Wei Sauvage Laboratory for Smart Materials Shenzhen Key Laboratory of Flexible Printed Electronics TechnologyHarbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining(Shenzhen) Harbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyChina

Flexible electronics can be seamlessly attached to human skin and used for various purposes, such as pulse monitoring, pressure measurement, tensile sensing, and motion detection. Despite their broad applications, most flexible electronics do not possess both high sensitivity and wide detection range simultaneously;their sensitivity drops rapidly when they are subjected to even just medium pressure. In this study, ultrabroad-range, high-sensitivity flexible electronics are fabricated through additive manufacturing to address this issue. The key to possess high sensitivity and a wide detection range simultaneously is to fabricate flexible electronics with large depth-width ratio circuit channels using the additive manufacturing inner-rinsing template method. These electronics exhibit an unprecedented high sensitivity of 320 kPa^(−1) over the whole detection range, which ranges from 0.3 to 30,000 Pa (five orders of magnitude). Their minimum detectable weight is 0.02 g (the weight of a fly), which is comparable with human skin. They can stretch to over 500% strain without breaking and show no tensile fatigue after 1000 repetitions of stretching to 100% strain. A highly sensitive and flexible electronic epidermal pulse monitor is fabricated to detect multiple physiological signals, such as pulse signal, breathing rhythm, and real-time beat-to-beat cuffless blood pressure. All of these signals can be obtained simultaneously for detailed health detection and monitoring. The fabrication method does not involve complex expensive equipment or complicated operational processes, so it is especially suitable for the fabrication of large-area, complex flexible electronics. We believe this approach will pave the way for the application of flexible electronics in biomedical detection and health monitoring.

关键词： fatigue additive stretching

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The genomics of ornamental plants: current status and opportunities

引用

Ornamental Plant Research 2022年第1期2卷 55-72页

作者： mingyu li Zhenying Wen Juan Meng Tangren Cheng Qixiang Zhang lidan Sun Beijing Key Laboratory of Ornamental Plants Germplasm Innovation&Molecular Breeding National Engineering Research Center for FloricultureBeijing Laboratory of Urban and Rural Ecological EnvironmentSchool of Landscape ArchitectureBeijing Forestry UniversityBeijing 100083China

With the rapid development of sequencing technologies,followed by the reduction of sequencing cost,numerous ornamental plants have been sequenced,resulting in their genomic studies shifting from gene cloning and marker development to whole genome profiling.A profound understanding of genome structure and function at the whole genome level can not only help to modify ornamental traits,such as fragrance,color and flower shape,through genetic engineering,but also infer the genetic relationship and evolutionary history of ornamental plants via comparative genomics *** this paper,we review the current situation of sequencing strategies and the application of genomics to study the origin and evolution of ornamental *** highlight challenges of ornamental plant genomic *** use of cutting-edge technologies,such as genomics,gene editing and molecular design polymerization breeding,can facilitate our understanding of genetic regulation mechanisms and the germplasm innovation of important traits in ornamental *** results can be expected to significantly increase the breeding efficiency of ornamental plants.

关键词： breeding ornamental shifting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of W^(6+) occupying Sc^(3+) on the structure, vibration, and thermal expansion properties of scandium tungstate

引用

Chinese Physics B 2021年第6期30卷 442-448页

作者： Dongxia Chen Qiang Sun Zhanjun Yu mingyu li Juan Guo Mingju Chao Erjun liang School of Materials Science&Engineering Zhengzhou University of AeronauticsZhengzhou 450046China Key Laboratory of Materials Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China

We experimentally investigate effects of W^(6+)occupying the sites of Sc^(3+)in the unit cell of Sc_(2) W_(3) O_(12)(Sc_(8) W_(12) O_(48))on the structure, vibration and thermal expansion. The composition and structure of the doped sample(Sc_(6) W_(2))W_(12) O_(48±δ)(with two W^(6+)occupying two sites of Sc^(3+)in the unit cell of Sc_(8) W_(12) O_(48)) are analyzed and identified by combining the x-ray photoelectron spectroscopy and the synchronous x-ray diffraction with first-principles calculations based on density functional theory. Results show that the crystal with even W^(6+)occupying even Sc^(3+)in the unit cell is stable and maintains the orthorhombic structure at room temperature. The structure of the doped sample is similar to that of Sc_(2) W_(3) O_(12), and with even W occupying even positions of Sc in the unit cell and constituting the WO_(6) octahedra. Raman analyses show that the doped sample possesses stronger W–O bonds and wider Raman linewidths than those of Sc_(2) W_(3) O_(12). The sample doped with W also exhibits intrinsic negative thermal expansion in the measured range of 150 K–650 K.

关键词： structure negative thermal expansion Raman spectroscopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Stable PbS colloidal quantum dot inks enable blade‑coating infrared solar cells

引用

Frontiers of Optoelectronics 2023年第3期16卷 131-140页

作者： Xinzhao Zhao mingyu li Tianjun Ma Jun Yan Gomaa Mohamed Gomaa Khalaf Chao Chen Hsien‑Yi Hsu Haisheng Song Jiang Tang Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Wuhan 430074China School of Optical and Electronic Information Huazhong University of Science and Technology(HUST)Wuhan 430074China School of Energy and Environment and Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology Wenzhou 325035China

Infrared solar cells are more efective than normal bandgap solar cells at reducing the spectral loss in the near-infrared region,thus also at broadening the absorption spectra and improving power conversion *** colloidal quantum dots(QDs)with tunable bandgap are ideal infrared photovoltaic ***,QD solar cell production sufers from small-areabased spin-coating fabrication methods and unstable QD ***,the QD ink stability mechanism was fully investigated according to Lewis acid–base theory and colloid stability *** further studied a mixed solvent system using dimethylformamide and butylamine,compatible with the scalable manufacture of method-blade *** on the ink system,100 cm2 of uniform and dense near-infrared PbS QDs(~0.96 eV)flm was successfully prepared by blade *** average efciencies of above absorber-based devices reached 11.14%under AM1.5G illumination,and the 800 nm-fltered efciency achieved 4.28%.Both were the top values among blade coating method based *** newly developed ink showed excellent stability,and the device performance based on the ink stored for 7 h was similar to that of fresh *** matched solvent system for stable PbS QD ink represents a crucial step toward large area blade coating photoelectric devices.

关键词： PbS quantum dots Solvent engineering Colloid stability Blade coating Infrared solar cells

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

linear polyketides produced by co-culture of Penicillium crustosum and Penicillium fellutanum

引用

Marine life Science & Technology 2022年第2期4卷 237-244页

作者： Guihong Yu Peng Sun Reyilamu Aierken Chunxiao Sun Zhenzhen Zhang Qian Che Guojian Zhang Tianjiao Zhu Qianqun Gu mingyu li Dehai li Key Laboratory of Marine Drugs Chinese Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdao266003China Laboratory for Marine Drugs and Bioproducts of Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao266237China Fujian Provincial Key Laboratory of Innovative Drug Target Research School of Pharmaceutical ScienceXiamen UniversityXiamen361102China School of life Sciences Shandong Province Key Laboratory of Applied MycologyQingdao Agricultural UniversityQingdao266109China

Two new polyketides, penifellutins A (1) and B (2), possessing a 22 carbon linear skeleton, were isolated from a co-culture of the deep-sea-derived fungi Penicillium crustosum PRB-2 and Penicillium fellutanum HDN14-323. Meanwhile, two esterification products of 1, penifellutins C (3) and D (4), were obtained because compound 1 could be esterified spontaneously when stored in methanol. Their configurations were difficult to determine because of chiral central crowdedness, structural flexibility and instability. As such, we solved this issue by comprehensively using Mo2(OAc)4-based CD experiments, density functional theory calculation of 13C NMR, DP4 + probability analysis and many chemical reactions, including making acetonide derivative, Mosher’s method, PGME method, etc. Compounds 1 and 2 show obvious inhibitory activity on the liver hyperplasia of zebrafish larvae at a concentration of 10 μmol/L, while 3 and 4 show no activity, indicating that two carboxyls in the structure are important active sites.

关键词： Co-culture Polyketides Extraction and isolation Structure elucidation Antiproliferation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of surface finish metallization on interfacial bonding behavior of sintered Ag joints

引用

China Welding 2022年第1期31卷 60-64页

作者： Yang Fan Wu Weizhen Du Jianjun li mingyu School of Mechanical Engineering and Automation Harbin Institute of Technology ShenzhenShenzhen 518055China Sauvage Laboratory for Smart Materials School of Materials Science and EngineeringHarbin Institute of Technology ShenzhenShenzhen 518055China

In this work,the sandwich joints were joined by low temperature pressureless sintering Ag *** morphology and thermal behavior of Ag nanoparticle paste was characterized and *** sintered Ag joints with different metallization were prepared and *** joints with Ag metallization exhibited superior shear strength and interface bonding ***,the joints with Cu metallization showed lowest shear strength and interface *** interfacial microstructures were observed and the diffusion kinetics between Ag and Au atoms were both *** excessive diffusion of Ag atoms towards the Au layer deteriorated the interface bonding ratio and shear *** work will help understand the bonding mechanism between sintered Ag and other metallization.

关键词： Sintered Ag interface Au metallization Cu oxidation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A novel method for extending the output power back-off range of an asymmetrical Doherty power amplifier

引用

Frontiers of Information Technology & Electronic Engineering 2023年第3期24卷 470-479页

作者： mingyu li Xiaobing CHENG Zhijiang DAI Kang ZHONG Tianfu CAI Chaoyi HUANG School of Microelectronics and Communication Engineering Chongqing UniversityChongqing 400044China School of Optoelectronic Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China

A novel method is proposed to extend the output power back-off(OPBO)range of the Doherty power amplifier(DPA).This study reveals that the OPBO range of the DPA can be extended by tuning the output impedance of the peaking stage away from infinity and changing the phase delay of the output matching network of the carrier power *** on this theory,a large-OPBO-range high-efficiency asymmetrical DPA working band from 1.55 to 2.2 GHz(35%relative bandwidth)is designed to verify the proposed *** results show that the DPA operates from 1.6 to 2.1 *** range of the measured efficiency is 42.2%–52.1%in the OPBO state and 47%–62.7%in the saturation *** OPBO range is 11.1–13.2 dB.

关键词： Doherty power amplifier(DPA) Output power back-off(OPBO) Output impedance Network phase

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Crystal structure of the African swine fever virus structural protein p35 reveals its role for core shell assembly

引用

Protein & Cell 2020年第8期11卷 600-605页

作者： Guobang li Dan Fu Guangshun Zhang Dongming Zhao mingyu li Xue Geng Dongdong Sun Yuhui Wang Cheng Chen Peng Jiao lin Cao Yu Guo Zihe Rao State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy Nankai UniversityTianjin 300350China State Key Laboratory of Veterinary Biotechnology Harbin Veterinary Research InstituteChinese Academy of Agricultural SciencesHarbin 150001China School of life Sciences Tianjin UniversityTianjin 300071China

Dear Editor,The African swine fever(ASF)is a highly contagious hemorrhagic and lethal disease in domestic *** ASF outbreaks of in many Asia countries,including China,Vietnam,Mongolia,and South Korea,have posed a huge threat to the pig *** the attempt to stop ASF from spreading further in China's Mainland,more than 10 million pigs have been culled since August *** causative agent for ASF is a DNA virus,African swine fever virus(ASFV).Although this deadly disease has been reported in Kenya nearly one hundred years ago,there has been no vaccine for protection from ASFV infection or effective treatments to cure ASF until now.

关键词： swine fever African

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Mg_(2)Sn-induced whisker growth on the surfaces of Mg/Sn/Mg ultrasonic-assisted soldering joints

引用

China Welding 2022年第1期31卷 47-59页

作者： Cao Huijun li shiqin Zhang Yinggan Zhu Yichen li mingyu Zhang Zhihao College of Materials Xiamen UniversityXiamen 361000China Shenzhen Research Institute Xiamen UniversityShenzhen 518055China School of Transportation Engineering Xiamen City UniversityXiamen 361005China Sauvage Laboratory for Smart Materials School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China

In this paper,the phenomena of Mg_(2)Sn-induced Sn whisker growth were explored on the surfaces of Mg/Sn/Mg ultrasonic-assisted soldering joints after aging *** in-situ observation and thermal analysis confirmed that the formation and the corrosion of Mg_(2)Sn nanoparticles were the dominant reason of Sn whisker *** Mg_(2)Sn accumulation at the grain boundaries would pin the dislocation slip and affect the continuity of whisker growth,and the boundary angle would thus play a decisive role in the growth shape of Sn whiskers due to the pining effect of Mg_(2)*** study might be conducive to elucidating the growth behavior of Sn whiskers and provide the exploration strategy to further improve the bonding strength of Mg/Sn/Mg ultrasonic-assisted soldering joints.

关键词： Mg alloys ultrasonic wave solder joint Sn whisker microstructure growth mechanism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：