中国科学院机构知识库网格系统: 检索

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	Reexamining the role of intercrystalline links in the II-I phase transition of Poly(1-butene) 期刊论文 OAI收割 POLYMER, 2021, 卷号: 224 作者: Li, Xiangyang; Chen, Pujing; Xu, Min; Ding, Jianjun; Zheng, Kang \| 收藏 \| 浏览/下载：51/0 \| 提交时间：2021/06/15 Form II to form I phase transition Intercrystalline links poly(1-butene)
	Aristolochic acid I promoted clonal expansion but did not induce hepatocellular carcinoma in adult rats 期刊论文 OAI收割 ACTA PHARMACOLOGICA SINICA, 2021, 页码: 12 作者: Liu, Yong-zhen; Lu, Heng-lei; Qi, Xin-ming; Xing, Guo-zhen; Wang, Xin \| 收藏 \| 浏览/下载：42/0 \| 提交时间：2021/05/24 aristolochic acid I glutathione S-transferase placental form-positive foci clonal expansion hepatocellular carcinoma medium-term rat liver bioassay DNA adducts
	Rapid phase transition of polybutene-1 from form II to form I induced by pressure 期刊论文 OAI收割 Polymer, 2020 作者: Xiangyang Li; Pujing Chen; Jianjun Ding; Kang Zheng; Lin Chen \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2020/10/20 Polybutene-1 Phase transition Pressure Tetragonal form II Hexagonal form I
	藏北高原不同类型草地固碳微生物群落及其固碳能力研究学位论文 OAI收割北京: 中国科学院大学；中国科学院青藏高原研究所, 2018 作者: 赵康 \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2019/08/28 生物固碳 Form i Rubisco 固碳能力青藏高原草地土壤固碳微生物
	ON THE EXTENSION OF THE MEAN CURVATURE FLOW IN ARBITRARY CODIMENSION 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF MATHEMATICS, 2010, 卷号: 21, 期号: 11, 页码: 1429-1438 作者: Han, Xiaoli; Sun, Jun \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2018/07/30 Second fundamental form mean curvature type I singularity blow-up
	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.; Liu H.; Liu H. 收藏 \| 浏览/下载：53/0 \| 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.
	Cabibbo suppressed semileptonic decay D-0 ->pi(-)e(+)v(e) 期刊论文 OAI收割 HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2005, 卷号: 29, 期号: 1, 页码: 5-8 作者: Mai DN(麦迪娜); Chen JC(陈江川); Rong G(荣刚); Zhang DH(张达华); Ablikim, M 收藏 \| 浏览/下载：20/0 \| 提交时间：2016/04/11 semileptonic decay decay rate CKM matrix element vertical bar I V-cd vertical bar form factor vertical bar f(x) (0)vertical bar
	TEM studies on single crystal structure of syndiotactic poly(propene-co-butene-1)s 期刊论文 OAI收割 macromolecules, 2002, 卷号: 35, 期号: 12, 页码: 4646-4652 Zhang B; Yang DC; De Rosa C; Yan S 收藏 \| 浏览/下载：136/36 \| 提交时间：2010/11/03 FORM-I POLYPROPYLENE POLY(1-BUTENE) MORPHOLOGY COPOLYMERS 1-BUTENE CRYSTALLIZATION POLYMORPHISM PROPYLENE PROPENE