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| 1 | Calcite Dissolution in Deionized Water from 50℃ to 250℃ at 10 MPa:Rate Equation and Reaction Order显示文摘Carbonate minerals and water (or geofluids) reactions are important for modeling of geochemical processes and have received considerable attention over the past decades.The calcite dissolution rates from 50℃to 250℃at 10 MPa in deionized water with a flow rate varying from 0.2 to 5 mL/min were experimentally measured in a continuous flow column pressure vessel reactor.The dissolution began near the equilibrium with c/c_(eq)>0.3 and finally reached the equilibrium at 100℃-250℃,so the corresponding solubility was also determined as 1.87,2.02,2.02 and 1.88×10^(-4)·mol/L at 100℃,150℃,200℃and 250℃respectively,which was first increasing and then switching to decreasing with temperature and the maximum value might occur between 150℃and 200℃.The experimental dissolution rate not only increased with temperature,but also had a rapid increase between 150℃and 200℃at a constant flow rate of 4 mL/min.The measured dissolution rates can be described using rate equations of R=k(1-c/c_(eq))n or R=kc^(-n).In these equations the reaction order n changed with temperature,which indicates that n was a variable rather than a constant,and the activation energy was 13.4 kJ/mol calculated with R=k(1-c/c_(eq))~n or 18.0 k J/mol with R=kc^(-n),which is a little lower than the surface controlled values.The varied reaction order and lower activation energy indicates that calcite dissolution in this study is a complex interplay of diffusion controlled and surface controlled processes. | GONG Qingjie DENG Jun WANG Qingfei YANG Liqiang SHE Min | 2008 | Acta Geologica Sinica(English Edition)2008,82,5: | 9 |
| 2 | Robust disturbance rejection for a fractional-order system based on equivalent-input-disturbance approach显示文摘This paper presents a disturbance rejection method that is based on the equivalent-inputdisturbance approach for uncertain fractional-order(FO) systems. An FO observer is used to reconstruct the plant states and estimate the disturbances. A disturbance estimator is incorporated in the construction of the FO control system to actively compensate for the entire disturbance. A robust stability condition for the control system and the parameters of the controller are derived using an indirect Lyapunov method.The presented method effectively rejects disturbances and handles modeling uncertainties without requiring prior knowledge of the disturbance. Comparison simulations on both numerical and practical examples demonstrate the effectiveness of the proposed method. | Ruijuan LIU Jinhua SHE Min WU Fenfang ZHU Zhuoyun NIE | 2018 | Science China(Information Sciences)2018,61,7: | 6 |
| 3 | An improved robust stability and robust stabilization method for linear discrete-time uncertain systems显示文摘This paper addresses the problems of the robust stability and robust stabilization of a discrete-time system with polytopic uncertainties.A new and simple method is presented to directly decouple the Lyapunov matrix and the system dynamic matrix.Combining this method with the parameter-dependent Lyapunov function approach yields new criteria that include some existing ones as special cases.A numerical example illustrates the improvement over the existing ones. | Xianming ZHANG Min WU Jinhua SHE Dongsheng HAN | 2007 | 控制理论与应用(英文版)2007,5,1: | 5 |
| 4 | H-infinity control for networked control systems (NCS) with time-varying delays显示文摘This paper discusses H-infin it y state feedback control for a networked control system with time-varying delays.Based on the free-weighing matri x method,a delay-dependent stability criterion satisfying a prescribed H-infini ty norm bound is presented for an NCS with unknown,time-varying and bounded del ays.And then,the criterion is transformed into suffici ent conditions based on linear matrix inequalities f or H-infinity control.The conditions thus obtained a re also used to design an H-infinity state feed back controller.This design method is further extend ed to solve the design problem of robust H-infin ity state feedback control.A numerical example demo nstrates the validity of the method. | Hong ZHAO Min WU Guoping LIU Jinhua SHE | 2005 | 控制理论与应用(英文版)2005,3,2: | 4 |
| 5 | Features and origins of massive dolomite of Lower Ordovician Penglaiba Formation in the northwest Tarim Basin:Evidence from petrography and geochemistry显示文摘An integrated petrographical and geochemical study of the massive dolomite of the lower Ordovician Penglaiba Formation of the Tarim Basin,outcropping at Yonganba recognized three dolomite types:very finely to finely crystalline nonplanar-a to planar-s dolomite(D1);medium crystalline planar-s to planar-e dolomite(D2);and coarse crystalline nonplanar-a dolomite(D3).All have been affected by burial.D1 and D2 dolomites developed initially before or during shallow burial and later recrystallized,whereas D3 dolomite replaced the initial limestone entirely during burial.All three dolomites have similar geochemical features.The D2 dolomite tends to have more inter-crystalline pores(inherited from primary pores)and higher porosity due to its outstanding compaction resistance during shallow burial;whereas D3 dolomite does not retain appreciable primary pores due to strong cementation and pressure dissolution before dolomitization.This study provides a useful model for understanding the origin and porosity development of burial dolomite,in particular Paleozoic dolomite. | Zhan-Feng Qiao Shao-Nan Zhang An-Jiang Shen Guan-Ming Shao Min She Peng Cao Xiao-Wei Sun Jie Zhang Rui-Xin Guo Xiu-Cheng Tan | 2021 | Petroleum Science2021,18,5: | 3 |
| 6 | Origin and Distribution of Grain Dolostone Reservoirs in the Cambrian Longwangmiao Formation,Sichuan Basin,China显示文摘Dolostones in the Cambrian Longwangmiao Formation have become one of the most significant gas exploration domains in China. Over a trillion cubic meters of gas reservoirs have been discovered in the Gaoshiti-Moxi area; however, the origins and distribution of the dolostone reservoirs are not well understood. This work discussed the geology and geochemistry of the dolostone reservoirs in the Longwangmiao Formation to determine their origin and distribution. Two understandings are acquired: firstly, a carbonate ramp provided excellent conditions for grain beach deposition, while the presence of a hypersaline lake was favorable for the contemporaneous dolomitization of grain beach deposits. Petrographic and geochemical evidence further confirm that the Longwangmiao dolostone was formed during the contemporaneous stage. Secondly, the reservoir characteristics indicate that the grain beach sediments provide material basis for the development of the Longwangmiao dolostone reservoirs. Reservoir dissolution simulation experiments show that the porosity of the reservoirs was formed by dissolution during contemporaneous and burial stages. The dissolution pores formed during the contemporaneous stage were controlled by sequence interfaces. The large scale dissolution vugs formed during the burial stage subsequently spread along the pre-existing porosity and fracture zones. This study therefore identified that the development of grain dolostone reservoirs in a shallow water ramp under arid climatic conditions generally met the following conditions:(1) reefal beach deposits lay a foundation for reservoir development;(2) superficial conditions are an important determining factor for reservoir porosity; and(3) burial conditions provide environment for porosity preservation and modification. | SHEN Anjiang HU Anping PAN Liyin SHE Min | 2017 | Acta Geologica Sinica(English Edition)2017,91,1: | 3 |
| 7 | Design of robust output-feedback repetitive controller for class of linear systems with uncertainties显示文摘Repetitive control, which adds a human-like learning capability to a control system, is widely used in many fields. This paper deals with the problem of designing a robust repetitive-control system based on output feedback for a class of plants with time-varying structured uncertainties. A continuous-discrete two-dimensional hybrid model is established that accurately describes the features of repetitive control so as to enable independent adjustment of the control and learning actions. A sufficient condition for the robust stability of the repetitivecontrol system is given in terms of a linear matrix inequality. The condition is then used to obtain the parameters of the repetitive controller. Finally, a numerical example demonstrates the effectiveness of the method. | WU Min ZHOU Lan SHE JinHua HE Yong | 2010 | Science China(Information Sciences)2010,53,5: | 3 |
| 8 | A Novel Ratiometric Fluorescent Probe for Highly Sensitive and Selective Detection of β-Galactosidase in Living Cells显示文摘β-Galactosidase,a glycoside hydrolase enzyme,has been proved to be an important biomarker of cell senescence and primary ovarian cancer.Effective detection of β-galactosidase has attracted wide attention.Herein,one ratiometric fluorescent probe has been successfully synthesized for detecting the β-galactosidase in living cells.The as-prepared probe exhibits two emission peaks at 490 nm and 530 nm,respectively,and the ratio of fluorescence intensities from the two emission peaks could be utilized to monitor the β-galactosidase.This present ratiometric fluorescent probe is,therefore,very promising for effective,sensitive,and selective detection of the β-galactosidase in living cells. | Min Chen Lixuan Mu Xingxing Cao Guangwei She Wensheng Shi | 2019 | Chinese Journal of Chemistry2019,37,4: | 3 |
| 9 | Design of equivalent-input-disturbance estimator using a generalized state observer显示文摘In this paper, we present a design method based on the concept of equivalent input disturbance (EID) to reject disturbances for a linear time-invariant system. A generalized state observer (GSO) is used to estimate an EID of the external disturbances, and the pole-assignment algorithm is employed to select the matrices of the GSO. Simulation and experimental results of a rotational speed control system demonstrate the validity of our method. | Min WU Kunpeng LOU Fangchun XIAO Ruijuan LIU Yong HE Jinhua SHE | 2013 | 控制理论与应用(英文版)2013,11,1: | 3 |
| 10 | Improved potential energy-shaping for port-controlled Hamiltonian systems显示文摘这份报纸经由改进潜力调查控制港口的 Hamiltonian (PCH ) 系统的 asymptotical 稳定塑造精力(IPES ) 方法。首先,及物的 Hamiltonian 功能介绍的需要的势能被加到原来的动能产出需要的 Hamiltonian 功能。第二,一个 asymptotically 稳定的控制器与获得的 Hamiltonian 功能基于一个新匹配方程被设计。最后,一个数字例子被给显示出建议方法的有效性。 | Liangcheng CAI Yong HE Min WU Jinhua SHE | 2012 | 控制理论与应用(英文版)2012,10,3: | 2 |
| 11 | Interaction of hsa-miR-381 and glioma suppressor LRRC4 is involved in glioma growth显示文摘 | Hailin Tang Xiaoping Liu Zeyou Wang Xiaoling She Xi Zeng Min Deng Qianjin Liao Xiaofang Guo Rong Wang Xiaoling Li Fang Zeng Minghua Wu Guiyuan Li | 2011 | Brain Research2011,,: | 1 |
| 12 | Delay- dependent criteria for robust stability of time -varying delay systems显示文摘 | WU Min HE Yong SHE Jin -hua | 2004 | Automatica2004,40,: | 1 |
| 13 | Delay - dependent stabilization of linear systems with time - varying state and input delays 显示文摘 | ZHANG Xian - ruing WU Min SHE Jin - hua | 2005 | Automatica2005,41,: | 1 |
| 14 | Delay - Dependent Robust Stability Criteria for Uncertain Neutral Systems with Mixed Delays显示文摘 | HE Yong WU Min SHE Jinhua | 2004 | Systems Control Letters2004,51,: | 1 |
| 15 | A model-based expert control strategy using neural networks for the coal blending process in an iron and steel plant显示文摘 | WU Min Nakano M SHE Jin-hua | 1999 | Expert Systems with Applications1999,,16: | 1 |
| 16 | Parameter-dependent Lyapunov functional for stability of time-delay systems with polytopic-type uneertainties显示文摘 | HE Yong WU Min SHE Jinhua | 2004 | Automatic Control IEEE Trans2004,49,5: | 1 |
| 17 | Delay-dependent criteria for robust stability of time-varying delay systems显示文摘 | WU Min HE Yong SHE Jin-hua | 2004 | Automatica2004,40,8: | 1 |
| 18 | Delay-dependent criteria for robust stability of time-varying delay systems显示文摘 | WU Min HE Yong SHE Jinhua | 2004 | Automatica2004,40,8: | 1 |
| 19 | Delay-dependent criteria for robust stability of time-varying delay systems显示文摘 | Wu Min He Yong She Jinhua | 2004 | Automatica2004,40,8: | 1 |
| 20 | A model-based expert control strategy using neural networks for the coal blending process in an iron and steel plant 显示文摘 | Nakano Michio She Jin-Hua | 1999 | Expert Systems with Applications1999,16,: | 1 |