机构

• 地理科学与资源研究所 [3]
• 心理研究所 [2]
• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]

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

• 2022 [1]
• 2021 [1]
• 2018 [3]
• 2016 [1]
• 2006 [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： 5101520253035404550556065707580859095100 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 Prevalence and potential risk factors of self-reported diabetes among elderly people in China: A national cross-sectional study of 224,142 adults 期刊论文  OAI收割 FRONTIERS IN PUBLIC HEALTH, 2022, 卷号: 10, 页码: 18 作者:  Hu, Xing;  Meng, Lingbing;  Wei, Zhimin;  Xu, Hongxuan;  Li, Jianyi   |  收藏  |  浏览/下载：31/0  |  提交时间：2023/02/06 prevalence  self-reported  diabetes  elderly  national cross-sectional study   Coronavirus: The Not-So-Trivial Loss of Well-Being 期刊论文  OAI收割 EARTHS FUTURE, 2021, 卷号: 9, 期号: 9, 页码: 17 作者:  Duan, Hongbo;  Huang, Zhilin;  Jiang, Jie;  Ming, Xi;  Zhang, Dingxuan   |  收藏  |  浏览/下载：30/0  |  提交时间：2022/04/02 Novel Coronavirus  social media posts  self-reported happiness  China   The More Educated, the Healthier: Evidence from Rural China 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 12, 页码: 14 作者:  Wang, Weidong;  Dong, Yongqing;  Liu, Xiaohong;  Zhang, Linxiu;  Bai, Yunli   |  收藏  |  浏览/下载：52/0  |  提交时间：2019/05/23 rural labor force  education  self-reported health  mental health  I2  I18  I21   The More Educated, the Healthier: Evidence from Rural China 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 12, 页码: 14 作者:  Wang, Weidong;  Dong, Yongqing   |  收藏  |  浏览/下载：19/0  |  提交时间：2019/05/23 rural labor force  education  self-reported health  mental health  I2  I18  I21   The More Educated, the Healthier: Evidence from Rural China 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 卷号: 15, 期号: 12, 页码: 14 作者:  Wang, Weidong;  Dong, Yongqing;  Liu, Xiaohong;  Zhang, Linxiu;  Bai, Yunli   |  收藏  |  浏览/下载：16/0  |  提交时间：2019/05/23 rural labor force  education  self-reported health  mental health  I2  I18  I21   Family Environments and Children's Executive Function: The Mediating Role of Children's Affective State and Stress 期刊论文  OAI收割 JOURNAL OF GENETIC PSYCHOLOGY, 2016, 卷号: 177, 期号: 5, 页码: 143-155 作者:  He, Zhong-Hua;  Yin, Wen-Gang 收藏  |  浏览/下载：34/0  |  提交时间：2016/12/08 Executive function  family psychosocial environment  family socioeconomic status  naturalistic affective state  self-reported stress  subjective social status   Wavelet-fractal based compression of ophthalmic image (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Xiu-Ying Z.; Lin-Pei Z. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 This study is designed to determine the degree and methods of digital image compression to produce ophthalmic images of sufficient quality for transmission and diagnosis. Fractal based compression techniques  which provide a large compression ratio for grayscale images have been reported in the literature. Fractal coding is based on the fractal theory of iterated transformations. But  it's searching and mapping algorithm cannot address the need of real-time. To improve the real-time performance of the algorithm  we use wavelet transforms to decompose images. The wavelet transform is a natural tool for analyzing fractal block coders since wavelet bases possess the same type of dyadic self-similarity that fractal coders seek to exploit. We propose a method of fractal coding the weighted wavelet subtree. Experimented results show that the improved hybrid image can improve the PSNR of the rebuild image at the same compression ratio.