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SHRIMP zircon U-Pb dating and its geological significance of Chibaisong gabbro in Tonghua area,Jilin Province,China

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Science China Earth Sciences 2006年第4期49卷 368-374页

作者： PEI Fuping XU Wenliang YANG debin zhao Quanguo College of Earth Sciences Jilin University Changchun 130061 China College of Earth Sciences Jilin University Changchun 130061 China College of Earth Sciences Jilin University Changchun 130061 China College of Earth Sciences Jilin University Changchun 130061 China

SHRIMP zircon U-Pb dating for Chibaisong No.1 gabbro in the Tonghua area, Jilin Prov- ince, is discussed in the paper. The cathodoluminescence (CL) images of the zircons indicate that they can be divided into two major types, i.e. euhedral-subhedral one with striped absorption and round one with obvious oscillatory zoning rims. The dating results of the zircons suggest that Chibai- song gabbro in the Tonghua area was formed at 134±7Ma—the Early Cretaceous. The concordia ages of 2497±13Ma, 787±35Ma, 321±10Ma, 217±11Ma of zircons imply that the Tonghua area might geologically be located in the convergent region of the Yangtze Block (YB) and the North China Block (NCB) in the early Mesozoic and the zircons should be caught during magma intrusion. The existence of the Early Cretaceous basic dyke swarm in the Tonghua area shows that an intensive extensional environment occurred in the Early Cretaceous. It is suggested that the magmatism and lithospheric extension in the Tonghua area should be related to the subduction of the Pacific plate.

关键词： zircon, gabbro, SHRIMP U-Pb dating, Tonghua area.

MAP based blocking artifact reduction for DCT domain distributed video coding

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High Technology Letters 2012年第1期18卷 77-83页

作者： Liu Hongbin zhao debin Ma Siwei Gao Wen School of Computer Science and Technology Harbin Institute of Technology Harbin150001P.R.China School of Electronics Engineering and Computer Science Peking UniversityBeijing100871P.R. China

This paper proposes a maximum a posteriori （MAP） based blocking artifact reduction algorithm for discrete cosine transform （DCT） domain distributed video coding, in which the SI and the initial reconstructed Wyner-Ziv （WZ） frame are utilized to further estimate the original WZ frame. Though the MAP estimate improves quality of the artifact region, it also leads to over-smoothness and decreases quality of the non-artifact region. To overcome this problem, a criterion is presented to discriminate the artifact and the non-artifact region in the initial reconstructed WZ frame, and only the artifact region is updated with the MAP estimate. Simulation results show that the proposed algorithm provides obvious improvement in terms of both objective and subjective evaluations.

关键词： distributed video coding(DVC) blocking artifact reduction maximum a posteriori(MAP)

Side information refinement in distributed video coding

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High Technology Letters 2012年第4期18卷 423-427页

作者：刘鸿彬 zhao debin Ma Siwei Gao Wen School of Computer Science and Technology Harbin Institute of Technology Harbin 150001 P. R. China School of Electronics Engineering and Computer Science Peking University Beijing 100871 P. R. China

Side information （SI） is one of the key issues in distributed video coding （DVC） and affects the compression performance of DVC largely. This paper proposes an SI refinement algorithm, in which the Wyner-Ziv （WZ） frame is split into two parts based on checkerboard pattern, and the two parts are encoded independently but decoded sequentially. In the decoding process, the part 1 is first decoded with the initial SI and partially decoded part （PDP） 1 is used to improve the motion vectors （MVs） and SI of both parts. At the next stage, the part 2 is decoded with the improved SI and PDP 2 is used to further refine MVs of the part 2. Then, SI of both parts are further refined. Simulation results show that the proposed algorithm can improve the peak signal to noise ratio （PSNR） by up to 1.43 dB when compared with traditional DVC codec.

关键词： distributed video coding (DVC) side information (SI) checkerboard pattern

Chronology and Geochemistry of Mesozoic Volcanic Rocks in the Linjiang Area,Jilin Province and their Tectonic Implications

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Acta Geologica Sinica(English Edition) 2009年第2期83卷 245-257页

作者： YU Yang XU Wenliang PEI Fuping YANG debin zhao Quanguo College of Earth Sciences Jilin University Changchun Jilin 130061 China

Zircon U-Pb ages and geochemical analytical results are presented for the volcanic rocks of the Naozhigou, Ergulazi, and Sidaogou Formations in the Linjiang area, southeastern Jilin Province to constrain the nature of magma source and their tectonic settings. The Naozhigou Formation is composed mainly of andesite and rhyolite and its weighted mean ^206pb/^238U age for 13 zircon grains is 222±1 Ma. The Ergulazi Formation consists of basaltic andesite, basaltic trachyandesite, and andesite, and six grains give a weighted mean ^206pb/^238U age of 131±4 Ma. The Sidaogou Formation consists mainly of trachyandesite and rhyolite, and six zircon grains yield a weighted mean ^206pb/^238U age of 113±4 Ma. The volcanic rocks have SIO2=60.24%-77.46%, MGO=0.36%-1.29% （Mg#=0.32-0.40） for the Naozhigou Formation, SIO2=51.60%-59.32%, MGO=3.70%-5.54% （Mg#=0.50-0.60） for the Ergulazi Formation, and SIO2=58.28%-76.32%, MGO=0.07%-1.20% （Mg#=0.14-0.46） for the Sidaogou Formation. The trace element analytical results indicate that these volcanic rocks are characterized by enrichment in light rare earth elements （LREEs） and large ion lithophile elements （LILEs）, relative depletion in heavy rare earth elements （HREEs） and high field strength elements （HFSEs, Nb, Ta, and Ti）, and negative Eu anomalies. Compared with the primitive mantle, the Mesozoic volcanic rocks in the Linjiang area have relatively high initial ^87Sr/^86Sr ratios （0.7053-0.7083） and low εNd（t） values （-8.38 to -2.43）, and display an EMⅡ trend. The late Triassic magma for the Naozhigou Formation could be derived from partial melting of a newly accretional crust with the minor involvement of the North China Craton basement and formed under an extensional environment after the collision of the Yangtze Craton and the North China Craton. The Early Cretaceous volcanic rocks for the Ergulazi and Sidaogou Formations could be formed under the tectonic setting of an active continental margin related to the westward subduction of t

关键词： LA-ICP-MS zircon U-Pb dating geochemistry volcanic rocks magma source tectonicsetting Linjiang area Jilin

ADCTVQ: A New Method for Image Coding and Compressing

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哈尔滨工业大学学报 1990年第3期22卷 45-51页

作者： Zhang Shibin Luo Wei zhao debin Li Zhongrong Gao Wen (Department of Computer Science) 哈尔滨工业大学黑龙江哈尔滨

This paper presents a new method for image coding and compressing-ADCTVQ(Adptive Discrete Cosine Transform Vector Quantization). In this method, DCT conforms to visual properties and has an encoding ability which is inferior only to the best transform KLT. Its vector quantization can maintain the minimum quantization distortions and greatly increase the compression ratio. In order to improve compression efficiency, an adaptive strategy of selecting reserved region patterns is applied to preserving the high energy at the same compression ratio. The experiment results show that they are satisfactory at the compression ration ratio if greater than 20.

关键词：图像压缩图像编码矢量量化 ADCTVQ 压缩速率余弦变换

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基于图像块方向的自适应无失真编码

模式识别与人工智能 1998年第1期11卷 89-95页

作者：赵德斌陈耀强高文哈尔滨工业大学计算机科学系 150001 香港城市大学计算机科学系

本文首先介绍无失真图像编码方法,然后提出一种基于块方向的自适应无失真图像编码方法.该方法首先将图像划分为若干块,自适应地为每一块选择一个预测误差最小的方向预测器.其次,一种有效的霍夫曼编码技术被用来编码误差图像,它覆盖了较... 详细信息

本文首先介绍无失真图像编码方法,然后提出一种基于块方向的自适应无失真图像编码方法.该方法首先将图像划分为若干块,自适应地为每一块选择一个预测误差最小的方向预测器.其次,一种有效的霍夫曼编码技术被用来编码误差图像,它覆盖了较大范围的信息熵.最后,给出了实验结果及与其它无失真编码算法的比较.

关键词：数据压缩无失真编码图像编码图像处理

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地震反演中的线性规划算法——最小结构解法

石油物探 1989年第1期28卷 40-59页

作者：赵德斌大庆石油学院勘探系

本文详细地阐述了地震反演中的线性规划算法——最小结构解法的基本原理和特点,阐明了线性规划反演方法中从各种信息源中提取约束条约的算法,以及反演之前一系列精细的预处理对反演结果的影响,同时提出了实现这个反演算法的具体实施细则。

关键词：地震反演线性规划最小结构解法

按照公益性要求推进基层医药卫生体制综合改革

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中华医院管理杂志 2015年第6期31卷 422-425页

作者：赵德斌榆树市卫生和计划生育委员会吉林省榆树市130400

基层医药卫生体制综合改革是否取得成效的主要标志是能否建立新的管理体制和工作机制。近年来，榆树市紧紧把握基层医疗卫生机构的公益属性，积极推进基层医疗卫生机构体制改革。介绍了榆树市在改革中，全面实施基本药物管理制度，落实... 详细信息

基层医药卫生体制综合改革是否取得成效的主要标志是能否建立新的管理体制和工作机制。近年来，榆树市紧紧把握基层医疗卫生机构的公益属性，积极推进基层医疗卫生机构体制改革。介绍了榆树市在改革中，全面实施基本药物管理制度，落实可持续发展的经费补偿机制，对人事管理制度和利益分配制度改革进行的有益探索。通过综合改革，使榆树市公共卫生和群众基本医疗服务需求得到更好满足，基层医疗卫生机构的公益性进一步体现。

关键词：基层医疗卫生机构综合改革公益性

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基于分形搜索树的嵌入式小波图像编码算法

计算机研究与发展 2013年第7期50卷 1484-1490页

作者：唐国维王苫社张岩赵德斌东北石油大学计算机与信息技术学院黑龙江大庆163318 哈尔滨工业大学计算机科学与技术学院哈尔滨150001

与单纯采用分形编码方法相比,基于小波的分形图像编码可以较好地解决方块效应问题且能够有效降低匹配搜索时间,但在低频子带使用分形编码会导致重构图像质量下降,同时针对匹配搜索仍是分形编码主要时间开销的问题,提出一种基于分形搜索... 详细信息

与单纯采用分形编码方法相比,基于小波的分形图像编码可以较好地解决方块效应问题且能够有效降低匹配搜索时间,但在低频子带使用分形编码会导致重构图像质量下降,同时针对匹配搜索仍是分形编码主要时间开销的问题,提出一种基于分形搜索树的嵌入式小波图像编码算法.采用Haar小波对图像进行多级分解,对低频子带直接采用DPCM编码,高频部分则依据不同尺度子带的重要性采取自适应方式划分值域块,然后构建一种分形搜索树结构以确定定义域池并采用"Z"形扫描进行匹配搜索,最后对获得的分形参数进行算术编码.实验结果表明,该算法重构图像质量比同类算法有所提高,特别在中低码率下PSNR值提高明显,当码率小于0.40bpp时,PSNR平均提高0.40～2.48dB,同时算法执行时间明显减少.

关键词：图像压缩小波变换嵌入式图像编码分形图像编码迭代函数系统匹配搜索