Detian Yan

China University of Geosciences (Beijing)

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Entao Liu

China University of Geosciences

Haijiao Fu

China University of Geosciences

Jiaxiong Zhou

China National Offshore Oil Corporation (China)

Wang Hua

Bao Zhang

Wuhan University

Yong Deng

China National Offshore Oil Corporation (China)

He Huang

Chinese Academy of Sciences

Yin Gong

Wuhan University of Science and Technology

Guoqing Ding

Sir Run Run Shaw Hospital

xiaosong wei

China University of Geosciences (Beijing)

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China University of Geosciences

China University of Geosciences (Beijing)

Chinese Academy of Sciences

Shanghai Jiao Tong University

Jilin University

China National Offshore Oil Corporation (China)

Nanchang University

Sun Yat-sen University

First Affiliated Hospital of Chongqing Medical University

Chongqing Medical University

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泸州区块深层页岩裂缝脉体发育特征及成脉流体活动

Earth Science-Journal of China University of Geosciences (2022)

Chengpeng Yao Haijiao Fu Yingzhe Ma Detian Yan Hu Wang

摘要: 裂缝脉体中蕴藏着天然裂缝演化与古流体充注活动等重要信息，对于深层页岩气保存条件也有指示意义.针对泸州区块龙马溪组深层页岩裂缝脉体，综合运用光学薄片、阴极发光、流体包裹体及微区原位等分析手段，分析了裂缝脉体的发育特征，研究了成脉流体活动及其成岩环境演化，探讨了页岩气保存条件.研究发现，深层页岩裂缝脉体主要为石英与白云石或方解石组成的复合脉体，不同矿物之间表现出较复杂的切割关系，盐水包裹体与高密度甲烷包裹体大量发育，且裂缝脉体主要形成于还原性环境.整体看来，构造抬升背景下，深层页岩裂缝开始形成且处于不断开启或闭合过程，3期不同性质的古流体多次充注胶结，较封闭的成岩体系对深层页岩气的保存有利. 关键词: 泸州区块 / 龙马溪组 / 深层页岩 / 裂缝脉体 / 页岩气 / 保存条件 / 油气地质

10.3799/dqkx.2022.021

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洛伊地域における三畳紀堆積系の特徴と進化法則を研究した。【JST・京大機械翻訳】

Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao (2016)

Yue Shaofei Wang Hua Detian Yan Huang Chuanyan Chang Da-yu

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Nonlinear Controlling of Artificial Muscle System with Neural Networks

Tian She-ping Guoqing Ding Detian Yan Lin Liangming Meng Shi

The pneumatic artificial muscles are widely used in the fields of medical robots and etc. Neural networks are applied to modeling and controlling of artificial muscle system. A single-joint artificial muscle test system is designed. The recursive prediction error (RPE) algorithm which yields faster convergence than back propagation (BP) algorithm is applied to train the neural networks. The realization of RPE algorithm is given. The difference of modeling of artificial muscles using neural networks with different input nodes and different hidden layer nodes is discussed. On this basis the nonlinear control scheme using neural networks for artificial muscle system has been introduced. The experimental results show that the nonlinear control scheme yields faster response and higher control accuracy than the traditional linear control scheme

Pneumatic artificial muscles

Backpropagation

Realization (probability)

10.1109/robio.2004.1521751

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渤海湾盆地の南堡サッグ地層圧力のその意義を集積の進化及び【JST・京大機械翻訳】

Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao (2016)

Jianrong Tang Wang Hua Meng Lingjian Liu Junrong Wang Xiang

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Review for "Geological significance of rare earth elements in marine shale during the Late Ordovician–Early Silurian in Sichuan Basin, South China"

Detian Yan

Sichuan basin

10.1002/gj.4027/v2/review2

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Review for "Palaeoenvironmental analysis of the Lower Silurian Longmaxi Formation in the Zhaotong area of the Sichuan Basin, South China: Implications for organic matter accumulation mechanisms"

Detian Yan

Sichuan basin

10.1002/gj.3934/v1/review2

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The control equipment of constrictor with bio-feedback function

Beijing shengwu yixue gongcheng (2007)

Detian Yan

Owing to the problem of defecation-control for the patients who suffer anus incontinence,an anus constrictor equipment is improved.According to the principle of healthy people's defecation-control and process of constrictor's flab-reflex,the whole system is divided into two modules,the interior module and the external module.The interior module implement bio-feedback function by using sensor to measure the pressure of patients'intestine and send the information to the external module by nRF401.And external module controls the interior module to fulfill the process of defecation also by nRF401.Both modules are controlled by MSP430F1232 microcontroller.

Anus

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Episodic tectonic cycles and sequence pattern of the Tertiary rifted basins of East China

Acta Petrologica Sinica (2008)

Detian Yan Hua Wang

The episodic rifting processes of the Tertiary representative rifted basins in East China were revealed on the basis of the basin filling records,tectonic framework and subsidence history.The episodic tectonic change controlled the formation and evolution of sequence in the rifted basin.The formation and evolution of different stratigraphic units in different sequences were controlled dominantly by the different scales of tectonic episodes.The Eogene rifted basins in East China experianced four rifting episodes,and four secondary sequences were formed correspondingly.In intensively rifting subsidence episodes,some deep lacustrine basin sequences were usually observed,while the shallow lacustrine and fluvial basin sequences commonly formed during the initial and final rifting episodes.The depression stage in the Neo- zoic included two episodes,and two secondary sequences were correspondingly formed.There mainly observed the fluvial and delta-shallow lacustrine sequences.The secondary sequences of rifted basins in East China controlled by rifting episodes had good correlation,and the third sequences controlled by the low episodic extended events had distinct diversity.

Tectonic subsidence

Thermal subsidence

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Research on agile self-adaption of the seeker based on fuzzy control

Information technology newsletter (2012)

Detian Yan

Researching on the requirements of a seeker's frame motor rotation with the features of simplicity,accuracy and self-adaption,the direct fuzzy control with an integral module is proposed.Having set the fuzzy rules with Simulink and the quantization,proportion and integral gain factors adjusted,the direct fuzzy controller with an integral module and a traditional PID controller are to control a common system respectively.Then an external noise is applied to test the fuzzy-control system's immunity to noise.The result of the simulation indicates that the fuzzy system works better than the PID controller in both stabilizing time and overshoot,and it swiftly turns steady after certain external noise occurs,thus improving the agility and self-adaption of the system,and contributing to production design.

Overshoot (microwave communication)

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Application of genetic programming in symbolic regression

Transducer and Microsystem Technologies (2007)

Detian Yan

Genetic programming(GP)is a kind of mathematical programming method based on Darwin's theory of evolution.The application of GP in symbolic regression is discussed.No fitting function form for data fitting is needed while running GP and global optimum can be gotten with reasonable cross and mutation probability.The fitting for a arbitrary curve is impossible with conventional method,while with GP it is easy to implement.Examples are given to explain data fitting of measurement by GP.

Symbolic Regression

Curve fitting

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