搜索结果: 1-15 共查到“structure”相关记录2831条 . 查询时间(0.311 秒)
The relationships among structure variables of larch forests in China
Larch forests Stand factor Allometric relationship Power function Density effect and self-thinning
2024/1/19
Larch (Larix Mill.) forests are widely distributed in the upper parts of mountainous areas in China, playing vital roles in constructing mountain landscapes and maintaining mountain environments. Desp...
Stereocomplexed and homocrystalline thermo-responsive physical hydrogels with a tunable network structure and thermo-responsiveness
NANOCOMPOSITE HYDROGELS POLY(LACTIC ACID) POLY(N-ISOPROPYLACRYLAMIDE) TOUGH GELS ELASTOMERS BEHAVIOR MEMORY CHAIN
2024/1/19
The widespread application of thermo-responsive hydrogels requires materials with robust mechanical properties and tunable responsiveness. Herein, we report robust thermo-responsive physical hydrogels...
Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
stand characteristics terrain factor driving force regression analysis
2023/12/11
Stand structure and topography are important factors affecting forest vegetation carbon density (FVCD). Revealing the interaction mechanisms between stand structure and topography on FVCD is of great ...
Assessing Tree Coverage and the Direct and Mediation Effect of Tree Diversity on Carbon Storage through Stand Structure in Homegardens of Southwestern Bangladesh
traditional homegardens agroforestry system biodiversity and carbon optical remote sensing
2023/12/8
Dealing with two major challenges, climate change mitigation and biodiversity loss, under the same management program, is more noteworthy than addressing these two separately. Homegardens, a sustainab...
Intraday Variation Mapping of Population Age Structure via Urban-Functional-Region-Based Scaling
age structure urban functional regions temporal scaling factor dasymetric model RF-RFE algorithm intraday variation map
2023/12/6
The spatial distribution of the population is uneven?for various reasons, such as urban-rural differences and geographical conditions differences. As the basic element of the natural structure of the ...
Revealing the Structure and Composition of the Restored Vegetation Cover in Semi-Arid Mine Dumps Based on LiDAR and Hyperspectral Images
ecological restoration hierarchical classification vegetation structure LiDAR vegetation species
2023/12/1
Remotely sensed images with low resolution can be effectively used for the large-area monitoring of vegetation restoration, but are unsuitable for accurate small-area monitoring. This limits researche...
MYB transcription factor family in sweet cherry (Prunus avium L.): genome-wide investigation, evolution, structure, characterization and expression patterns
MYB transcription factors PavMYB genes Phylogenetic analysis Expression pattern Dormancy
2023/11/30
MYB Transcription factors (TFs) are most imperative and largest gene family in plants, which participate in development, metabolism, defense, differentiation and stress response. The MYB TFs has been ...
Bio-based epoxy vitrimer for recyclable and carbon fiber reinforced materials: Synthesis and structure-property relationship
Vitrimer Epoxy-acid-anhydride system CFRMs Degradable Recycling
2023/11/30
Recycling or degradation of epoxy resins is difficult because of their covalent cross-linking structures, which causes resource crisis, environmental pollution, and resource waste. To address this cha...
The Functional Structure of Tropical Plant Communities and Soil Properties Enhance Ecosystem Functioning and?Multifunctionality?in Different Ecosystems in Ghana
functional traits functional diversity multifunctionality plant spost-mining restorations resource use strategies tropical forest West Africa
2023/11/20
Plant functional traits are useful in tracking changes in the environment, and play an important role in determining ecosystem functioning. The relationship between plant functional traits and ecosyst...
Mitochondrial structure and respiratory metabolism in cold resistance of alfalfa seedling root（图）
苜蓿 抗寒性 秋眠性
2024/5/30
多年生苜蓿以根的形式越冬，因此，苜蓿的抗寒性以及成功越冬的关键在于其根部的抗寒性。在没有叶绿体结构不能进行光合作用的根部，呼吸作用是维持根部细胞生长所需能量ATP的唯一途径。新疆农业大学刘美君副教授团队选用不同秋眠级的新牧4号(秋眠级为2) 和甘农5号(秋眠级为8) 的紫花苜蓿为试验材料，研究发现，低温显著影响了苜蓿根系细胞呼吸代谢，细胞线粒体电子传递链复合体复合体II、III和IV受抑明显致使氧...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Structure-Preserving Spectral Method for Large-Scale MHD System Simulation
MHD 系统仿真 保结构谱
2023/11/6
Structure-preserving numerical methods are crucial for achieving long-time accurate, stable, consistent and physically meaningful simulations. In this talk, we present H^1 and H(div) conforming spectr...
Molecular simulation and optimization on the microporous structure in carbon molecular sieve membrane for CO2/CH4 separation
Carbon molecular sieve membrane Gas separation Molecular simulation Pore size Structure optimization
2023/6/19
Zigzag-type pore model with a modified structure was proposed to evaluate the effect of micropore structure on the gas separation performance of carbon molecular sieve membranes (CMSM). Molecular simu...
With new experimental method, researchers probe spin structure in 2D materials for first time（图）
2D材料 自旋结构 “魔角”石墨烯
2023/6/26
By observing spin structure in “magic-angle” graphene, a team of scientists led by Brown University researchers have found a workaround for a long-standing roadblock in the field of two-dimensional el...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Numerical PDEs for Fluid-Structure Interaction (FSI) Problems
流固耦合 数值 偏微分方程
2023/5/8
The interaction of a flexible structure with a flowing fluid in which it is submersed or by which it is surrounded gives rise to a rich variety of physical phenomena with applications in many fields o...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A structure-preserving parametric finite element method (PFEM) for geometric PDEs and applications
几何偏微分方程 结构保持 参数有限元
2023/4/17
In this talk, I begin with a review of different geometric flows (PDEs) including mean curvature (curve shortening) flow,surface diffusion flow, Willmore flow, etc., which arise from materials science...