中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
地质与地球物理研究所 [2]
金属研究所 [1]
成都山地灾害与环境研... [1]
长春光学精密机械与物... [1]
武汉岩土力学研究所 [1]
长春应用化学研究所 [1]
更多
采集方式
OAI收割 [7]
内容类型
期刊论文 [6]
会议论文 [1]
发表日期
2024 [1]
2020 [1]
2013 [2]
2006 [2]
1999 [1]
学科主题
筛选
浏览/检索结果:
共7条,第1-7条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Simulating tectonically controlled fractal landscape evolution in the Three Rivers Region (SE Tibetan Plateau margin)
期刊论文
OAI收割
GEOMORPHOLOGY, 2024, 卷号: 445, 页码: 15
作者:
Yan, Zhenzhen
;
Shi, Yaolin
;
Kang, Lili
;
Fan, Xiangtao
  |  
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2024/01/09
Three Rivers Region
Landscape evolution modelling
Shortening and dextral shear deformation
Fractal dimensions of river networks
Structural Networks Constraints on Alteration and Mineralization Processes in the Jiaojia Gold Deposit, Jiaodong Peninsula, China
期刊论文
OAI收割
JOURNAL OF EARTH SCIENCE, 2020, 卷号: 31, 期号: 3, 页码: 500-513
作者:
Hu, Huanlong
;
Liu, Shuangliang
;
Fan, Hong-Rui
;
Yang, Kuifeng
;
Zuo, Yabin
  |  
收藏
  |  
浏览/下载:45/0
  |  
提交时间:2020/09/25
ore-controlling structural networks
brittle-ductile deformation
dynamic recrystallization of quartz
fractal of quartz
connection in the space
Jiaojia Gold Deposit
MRT-LBM-based numerical simulation of seepage flow through fractal fracture networks
期刊论文
OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2013, 卷号: 56, 期号: 12, 页码: 3115-3122
作者:
Fan Huo
;
Zheng Hong
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2015/05/11
MRT-LBM
fractal interpolation
fracture networks
seepage flow simulation
microcosmic mechanism
MRT-LBM-based numerical simulation of seepage flow through fractal fracture networks
期刊论文
OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2013, 卷号: 56, 期号: 12, 页码: 3115-3122
作者:
Fan Huo
;
Zheng Hong
  |  
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2018/06/05
MRT-LBM
fractal interpolation
fracture networks
seepage flow simulation
microcosmic mechanism
Lossless wavelet compression on medical image (EI CONFERENCE)
会议论文
OAI收割
4th International Conference on Photonics and Imaging in Biology and Medicine, September 3, 2005 - September 6, 2005, Tianjin, China
作者:
Liu H.
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2013/03/25
An increasing number of medical imagery is created directly in digital form. Such as Clinical image Archiving and Communication Systems (PACS). as well as telemedicine networks require the storage and transmission of this huge amount of medical image data. Efficient compression of these data is crucial. Several lossless and lossy techniques for the compression of the data have been proposed. Lossless techniques allow exact reconstruction of the original imagery while lossy techniques aim to achieve high compression ratios by allowing some acceptable degradation in the image. Lossless compression does not degrade the image
thus facilitating accurate diagnosis
of course at the expense of higher bit rates
i.e. lower compression ratios. Various methods both for lossy (irreversible) and lossless (reversible) image compression are proposed in the literature. The recent advances in the lossy compression techniques include different methods such as vector quantization
wavelet coding
neural networks
and fractal coding. Although these methods can achieve high compression ratios (of the order 50:1
or even more)
they do not allow reconstructing exactly the original version of the input data. Lossless compression techniques permit the perfect reconstruction of the original image
but the achievable compression ratios are only of the order 2:1
up to 4:1. In our paper
we use a kind of lifting scheme to generate truly loss-less non-linear integer-to-integer wavelet transforms. At the same time
we exploit the coding algorithm producing an embedded code has the property that the bits in the bit stream are generated in order of importance
so that all the low rate codes are included at the beginning of the bit stream. Typically
the encoding process stops when the target bit rate is met. Similarly
the decoder can interrupt the decoding process at any point in the bil stream
and still reconstruct the image. Therefore
a compression scheme generating an embedded code can start sending over the network the coarser version of the image first
and continues with the progressive transmission of the refinement details. Experimental results show that our method can get a perfect performance in compression ratio and reconstructive image.
Surfactantless synthesis of multiple shapes of gold nanostructures and their shape-dependent SERS spectroscopy
期刊论文
OAI收割
journal of physical chemistry b, 2006, 卷号: 110, 期号: 34, 页码: 16930-16936
Wang T
;
Hu XG
;
Dong SJ
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2010/08/17
ENHANCED RAMAN-SCATTERING
AIR-WATER-INTERFACE
SILVER NANOPARTICLES
NANOWIRE NETWORKS
FRACTAL NETWORKS
ROOM-TEMPERATURE
AQUEOUS-SOLUTION
COLLOIDAL GOLD
SURFACE
FABRICATION
Spin-phonon renormalization of the excitation energy in a diluted two-dimensional ferromagnet
期刊论文
OAI收割
Communications in Theoretical Physics, 1999, 卷号: 32, 期号: 3, 页码: 345-350
G. Xiong
;
X. B. Wang
;
Z. H. Zhang
;
D. C. Tian
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2012/04/14
diluted two-dimensional ferromagnet
phonon self-energy
magnetic excitations
medium approximation
fractal networks
low-temperatures
normal-state
tc
superconductors
resistivity
scattering
electrons