搜索结果: 1-15 共查到“1D”相关记录84条 . 查询时间(0.046 秒)
本发明的目的是提供一种封装Ni3Fe纳米合金的N掺杂1D竹节状碳纳米管结构及其应用，采用一步协同催化热解技术制备，所述碳纳米管结构是由具有竹节状褶皱特征的1D多孔中空碳纳米管相互交织构成的三维导电网络结构，在纳米管内部具有N原子掺杂缺陷，Ni3Fe合金纳米颗粒被包裹在纳米管头部或管壁孔隙内。本发明利用简单无害的、不需任何反应气体的一步协同催化热解策略可大量制备此类产品，N元素的掺杂，使得纳米碳管变...
2ZG-1D甘薯电动自走式膜上移栽机（图）
2ZG-1D 甘薯 电动自走式 膜上移栽机
2024/9/4
针对丘陵山区缓坡地、小田块作业不到边、掉头难，黏重土壤行走系统易打滑，栽插深度、株距合格率低等问题，开展整机电机驱动、精准取植栽插、株距随速控制等关键技术研究，自主研制了甘薯电动手扶式膜上移栽机，实现了进口替代、薯苗自动取植、膜上稳定栽插，重量减轻50%以上，价格降低50%以上。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Global well-posedness of the 1d compressible Navier-Stokes system with rough data
粗略数据 一维可压缩 纳维-斯托克斯系统 全局适定性
2023/4/24
We study the global well-posedness problem for the 1d compressible Navier-Stokes systems (cNSE) in gas dynamics with rough initial data. First, Liu and Yu (Commun Pure Appl Math 75(2):223-348, 2022) e...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Global well-posedness of the 1d compressible Navier-Stokes system with rough data
粗略数据 一维可压缩 纳维-斯托克斯系统 全局适定性
2023/4/24
We study the global well-posedness problem for the 1d compressible Navier-Stokes systems (cNSE) in gas dynamics with rough initial data. First, Liu and Yu (Commun Pure Appl Math 75(2):223-348, 2022) e...
2022年10月20日，中国科学院遗传与发育生物学研究所研究员曹晓风研究组在Science China Life Sciences上，发表了题为Mobile ARGONAUTE 1d binds 22-nt miRNAs to generate phasiRNAs important for low-temperature male fertility in rice的论文，揭示了OsAGO1d可...
单子叶植物生殖细胞中产生大量21-和24-nt phasiRNA，和动物中piRNA类似参与雄配子发育，特别是极端温度下的育性调控，但有关phasiRNA的合成机制及功能调控却知之甚少。
近日，中国科学院遗传与发育生物学研究所曹晓风研究组在Science China Life Sciences发表了题为Mobile ARGONAUTE 1d binds 22-nt miRNAs to gener...
成都生物所开发出一种2D-1D-2D质谱成像新方法（图）
质谱成像 化学信息 质谱分析
2023/8/10
生物组织中的化学成分包含着生物的生理、病理发生和发展的重要信息，获取这些化学信息对生命科学研究具有重要意义。质谱成像技术无需标记即可获取目标化合物的空间分布信息，具有灵敏度高、准确可靠、分析速度快等特点，已广泛应用于生物组织分析。现有的质谱成像方法需要先将样品切片后固定在二维平台上，然后对二维平台上的样品来回扫描成像，故而成像尺寸受到平台和质谱接口尺寸的极大限制。因此，开发可灵活用于大体积生物组织...
植物器官的大小调控是一个重要的生物学过程，直接影响农作物产量。目前对于植物器官大小调控的研究集中在转录调控、激素信号通路及蛋白质合成与修饰等多个水平和途径，但具体的分子机制并不是很清晰。李云海实验室前期研究发现了一个器官大小的关键调控基因UBIQUITIN SPECIFIC PROTEASE 15（UBP15）/SUPPRESSOR2 OF DA1（SOD2）。sod2-1突变体由于UBP15基因...
1D-2D MODELING OF URBAN FLOODS AND RISK MAP GENERATION FOR THE PART OF HYDERABAD CITY
Stormwater Urban Flood Modeling Zone XIII SWMM PCSWMM
2019/2/27
Space for water is now becoming guiding principle of urban planning because urban flooding is the major problem facing by most of the cities in India. Urban development in developing countries like In...
南京大学郭少华、周豪慎团队在Adv. Energy Mater.发表钠离子储能电池方面重要进展--1D通道后尖晶石结构实现钠离子超长循环和超快传输（图）
南京大学 郭少华 周豪慎团队 Adv. Energy Mater 钠离子储能电池 1D通道 后尖晶石结构 钠离子 超长循环 超快传输
2017/12/5
近年来，由于在大规模储能领域的潜在应用，低成本、高性能钠离子电池研究持续升温。钠离子电池表现出合适的氧化还原电位、高的能量效率以及类似于锂离子电池的“摇椅式”充放电机理，这些都是钠离子电池首先应用于大规模储能的独特优势。然而，科学家在储钠负极的研究方面遇到了瓶颈：钠金属负极存在无法避免的枝晶问题；合金化合物遭受极大的体积变化；硬碳在快速充放电时可能遇到潜在的安全问题。南京大学现代工程与应用科学学院...
Local Limit Theorems for Random Walks in a 1D Random Environment
RWRE quenched random environments
2015/9/29
We consider random walks (RW) in a one-dimensional i.i.d.
random environment with jumps to the nearest neighbours. For almost
all environments, we prove a quenched Local Limit Theorem (LLT) for
the...
QUENCHED LIMIT THEOREMS FOR NEAREST NEIGHBOUR RANDOM WALKS IN 1D RANDOM ENVIRONMENT
NEIGHBOUR RANDOM WALKS IMIT THEOREMS
2015/9/29
It is well known that random walks in one dimensional random environment can exhibit subdiffusive behavior due
to presence of traps. In this paper we show that the passage times
of diffe...
TERRAIN PARAMETER RETRIEVAL USING IRS 1C/1D STEREO DATA IN CONJUNCTION WITH DIFFERENTIAL GPS MEASUREMENTS
DEM drainage network validation
2015/8/31
In the past few decades due to enormous development in satellite photogrammetry, more opportunities are available to have a stereo pair
from the space borne missions. Indian Remote Sensing satellites...
INVESTIGATION OF RESAMPLING EFFECTS ON IRS-1D PAN DATA
Resampling Geometric rectification Edge detection
2015/8/28
Image resampling is frequently employed in geometric correction as a part of preprocessing of a remotely sensed image. The
resampled images will have a noticeable change in image quality, which may h...
GEOSTAR deep seafloor missions: magnetic data analysis and 1D geoelectric structure underneath the Southern Tyrrhenian Sea
GEOSTAR Tyrrhenian Sea deep seafloor electrical conductivity lithosphere
2015/8/28
From 2000 to 2005 two geophysical exploration missions were undertaken in the Tyrrhenian deep seafloor at depths between -2000 and -3000 m in the framework of the European-funded GEOSTAR Projects. The...