搜索结果: 1-15 共查到“工学 Degradation”相关记录125条 . 查询时间(0.279 秒)
Preparation and Degradation of Waste Polycarbonate-Derived Epoxy Thermosets and Composites
waste polycarbonate diphenyl carbonate one-hundred percent atom efficiency epoxy recycling of CFRP aminolysis
2023/12/5
We report a robust, 100% atom-efficiency strategy for preparing waste polycarbonate (WPC)-derived epoxy resin. To demonstrate the preparation process, we perform a pyridine-catalyzed model reaction be...
Epoxy vitrimer based on borate ester bond for green degradation, closed-loop recycling, and ready reprocessing
Green degradation Thermoset Dynamic covalent bond Recyclable
2023/12/1
The three-dimensional network of traditional epoxy resin endows it with suitable properties, but it also presents challenges in reprocessing and recycling. Recent years have witnessed the development ...
Thermal Degradation Behavior of Epoxy Resin Containing Modified Carbon Nanotubes
epoxy resin carbon nanotubes silicone thermal degradation flame retardancy activation energy
2023/12/1
Via the surface-grafting of carbon nanotubes (CNTs) with a silicon-containing flame retardant (PMDA), a novel flame retardant CNTs-PMDA was synthesized. The flame retardancy was tested by cone calorim...
Network Degradation Assessed by Evolved Gas Analysis-Mass Spectrometry Combined with Principal Component Analysis (EGA-MS-PCA): A Case of Thermo-Oxidized Epoxy/Amine Network
ULTRAVIOLET-IRRADIATION MECHANICAL-PROPERTIES BUTADIENE RUBBER EPOXY-RESINS TEMPERATURE PYROLYSIS COATINGS TRANSITION OXIDATION SCISSION
2023/11/16
To study the degradation of thermosetting polymers, we apply a novel method to simultaneously study the chemical structural changes and network topology: evolved gas analysis-mass spectrometry combine...
Lithium-air batteries were thought promising in the 1970s as a potential power source for electric vehicles, offering energy densities that rival gasoline and significantly surpass conventional lithiu...
Analysis of atmospheric visibility degradation in early haze based on the nucleation clustering model
Early haze Initial nucleation process Heterogeneous cluster Visible-light absorption
2023/3/1
The initial nucleation of ultrafine particle recently attracts more attention as a key factor in visibility degradation during early haze. In this study, we have performed Density Functional Theory (D...
中国科学院地理科学与资源研究所史文娇等关于“高标准农田综合效益评价及其空间预测”的科研成果在农林科学一区TOP期刊《Land Degradation & Development》作为封面文章发表（图）
史文娇 高标准 农田综合效益评价 空间预测 科研成果
2020/8/24
建设高标准农田是巩固和提高粮食生产能力、保障国家粮食安全的关键举措。近年来，我国大力推进高标准农田建设，取得了明显成效。因此，开展高标准农田综合效益评价及其空间尺度预测研究，能够为我国未来高标准农田建设布局、优化管理及战略决策提供科学依据和支撑。近期，史文娇等以我国重要的粮食主产区之一黄淮海区为研究对象，构建了包含经济、社会、生态效益的综合效益评价指标体系及综合评价模型，对黄淮海区高标准农田抽样项...
中国地质大学科学技术发展院金航（硕士生），田熙科等材化学院 Environmental Science & Technology, 2017. Oxygen Vacancy Promoted Heterogeneous Fenton-like Degradation of Ofloxacin at pH 3.2-9.0 by Cu Substituted Magnetic Fe3O4@FeOOH Nanocomposite（图）
铁基芬顿；催化剂；催化降解；有机；污染物
2021/10/21
2017年9月，中国地质大学材化学院田熙科教授团队有关“铁基芬顿催化剂催化降解有机污染物”的研究成果发表在环境领域重要国际期刊《Environmental Science & Technology》上。
ESTIMATE OF DTM DEGRADATION DUE TO IMAGE COMPRESSION FOR THE STEREO CAMERA OF THE BEPICOLOMBO MISSION
Space Photogrammetry DTM Reconstruction Accuracy Area-based Image Matching Compression
2016/11/8
The great amount of data that will be produced during the imaging of Mercury by the stereo camera (STC) of the BepiColombo mission needs a compromise with the restrictions imposed by the band downlink...
Pendimethalin degradation in soil and its interaction with soil microorganisms
biodegradation half-life persistence pesticides
2016/8/2
Pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2, 6-dinitrobenzenamine] is a herbicide used worldwide to control most annual grasses and common weeds in cereals, fruit, and vegetables. Its degradation ...
EVALUATION OF ANNUAL MODIS PTC DATA FOR DEFORESTATION AND FOREST DEGRADATION ANALYSIS
MODIS VCF Percent Tree Cover (PTC) deforestation
2016/7/8
Anthropogenic land-cover change, e.g. deforestation and forest degradation cause carbon emissions. To estimate deforestation and forest degradation, it is important to have reliable data on forest cov...
DETECTION OF CHANGES IN LAND DEGRADATION IN NORTHEAST CHINA FROM LANDSAT TM AND ASTER DATA
Remote Sensing Change Detection Land Degradation Thematic Accuracy Landsat ASTER China
2016/1/3
This study aims to determine the accuracy level at which different forms of land degradation can be mapped from medium-resolution satellite data, and to assess how accurately degraded land can be dete...
LAND DEGRADATION ANALYSIS IN THE ONGI RIVER BASIN
Socio-economic Mineral Resources Degradation Biodiversity MSAVI2 NDVI
2015/12/31
During Mongolia's transition to the free market, socio-economic factors such as poverty and profit-seeking have greatly increased small to large-scale mining, as well as illicit activity resulting in ...
ESTIMATION OF GRASSLAND DEGRADATION BASED ON HISTORICAL MAXIMUM GROWTH MODEL USING WITH REMOTE SENSING DATA
Satellite Remote Sensing Detection Image Understanding Comparative Analysis Dynamic Change
2015/12/28
Grassland degradation is a complicated process and result of multi-system interaction. Observation on grassland vegetation growth and change is of critical importance to grassland resource management ...
LAND DEGRADATION MONITORING IN THE WEST MUUS,CHINA
Remote Sensing Land Degradation Monitoring Policy Impacts West MuUs China
2015/12/28
This paper presents a study on land degradation monitoring focused in the west part of the MuUs Sandy Land in Ordos, one of the important dry areas in China, aiming to understand land degradation dist...