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| 1 | Characteristics of carbonate cementation in clastic rocks from the Chang 6 sandbody of Yanchang Formation, southern Ordos Basin显示文摘Densification of reservoir is an important factor that restricts oil and gas exploration from low porosity and extra-low permeability reservoirs. Carbonate cementation was heavily developed in Chang 6 sandbody, a facies of underwater distributary channel in delta front, of Upper Triassic Yanchang Formation in Fuxian area, southern Ordos Basin, and the cementation is one of the major factors that affect quality of reservoir. Based on the macro-microcosmic petrology and geochemistry features, the genesis of densification of carbonate-cemented reservoir was systematically discussed. The carbonate cementation can be classified into endogenous and exogenous, and the essential differences between them are that they were formed in different fluids and in different diagenesis periods. With the aid of identification of thin sections, analyses on electron probe, trace and rare-earth elements, carbon and oxygen isotope, we propose that the endogenous fluid for cementation came from the rock itself during early diagenetic stage. The minerals related to endogenous fluid had good shapes. The reservoir property was enhanced with porosity increasing by 3%-8% because of later dissolution by endogenous fluid. The exogenous fluid might be water combining with CO 2 , likely released from organic matter-rich mudstone. Calcite cement, in form of substrate cementation, was precipitated from the fluid and filled in the remaining pores of sandstones in late diagenetic stage as variations of physical and chemical conditions. The exogenous cement reduced rock porosity, damaged reservoir property, affected some oil enrichment, and seriously caused Chang 6 reservoir densification. Some of the dense layers that formed on top of sandbody could have served as diagenetic traps, and thus the exogenous cementation area could be favorable for oil exploration. | LIU ChunYan ZHENG HeRong HU ZongQuan YIN Wei LI Song | 2012 | Science China Earth Sciences2012，55，1： | 11 |
| 2 | Differential Characteristics of the Upper Ordovician-Lower Silurian Wufeng-Longmaxi Shale Reservoir and its Implications for Exploration and Development of Shale Gas in/around the Sichuan Basin显示文摘The Upper Ordovician Wufeng-Lower Silurian Longmaxi shale is widely distributed in the Sichuan Basin and its periphery,which is the key stratum for marine shale gas exploration and development(E&D)in China.Based on sedimentary environment,material basis,storage space,fracability and reservoir evolution data,the reservoir characteristics of the Wufeng-Longmaxi shale and their significance for shale gas E&D are systematically compared and analyzed in this paper.The results show that(1)the depocenter of the Wufeng(WF)-Longmaxi(LM)shale gradually migrates from east to west.The high-quality shale reservoirs in the eastern Sichuan Basin are mainly siliceous shales,which are primarily distributed in the graptolite shale interval of WF2-LM5.The high-quality reservoirs in the southern Sichuan Basin are mainly calcareous-siliceous and organic-rich argillaceous shales,which are distributed in the graptolite shale interval of WF2-LM7.(2)Deep shale gas(the burial depth>3500 m)in the Sichuan Basin has high-ultrahigh pressure and superior physical properties.The organic-rich siliceous,calcareous-siliceous and organic-rich argillaceous shales have suitable reservoir properties.The marginal area of the Sichuan Basin has a higher degree of pressure relief,which leads to the argillaceous and silty shales evolving into direct cap rocks with poor reservoir/good sealing capacity.(3)Combining shale gas exploration practices and impacts of lithofacies,depth,pressure coefficient and brittle-ductile transition on the reservoir properties,it is concluded that the favorable depth interval of the Wufeng-Longmaxi shale gas is 2200~4000 m under current technical conditions.(4)Aiming at the differential reservoir properties of the Wufeng-Longmaxi shale in the Sichuan Basin and its periphery,several suggestions for future research directions and E&D of shale gas are formulated. | WANG Ruyue HU Zongquan LONG Shengxiang LIU Guangxiang ZHAO Jianhua DONG Li DU Wei WANG Pengwei YIN Shuai | 2019 | Acta Geologica Sinica(English Edition)2019，93，3： | 8 |
| 3 | Crashworthiness Analysis on Alternative Square Honeycomb Structure under Axial Loading显示文摘Hexagonal metal honeycomb is widely used in energy absorption field for its special construction. However, many other metal honeycomb structures also show good energy absorption characteristics. Currently, most of the researches focus on hexagonal honeycomb, while few are performed into different honeycomb structures. Therefore, a new alternative square honeycomb is developed to expand the non-hexagonal metal honeycomb applications in the energy absorption fields with the aim of designing low mass and low volume energy absorbers. The finite element model of alternative square honeycomb is built to analyze its specific energy absorption property. As the diversity of honeycomb structure, the parameterized metal honeycomb finite element analysis program is conducted based on PCL language. That program can automatically create finite element model. Numerical results show that with the same foil thickness and cell length of metal honeycomb, the alternative square has better specific energy absorption than hexagonal honeycomb. Using response surface method, the mathematical formulas of honeycomb crashworthiness properties are obtained and optimization is done to get the maximum specific energy absorption property honeycomb. Optimal results demonstrate that to absorb same energy, alternative square honeycomb can save 10% volume of buffer structure than hexagonal honeycomb can do. This research is significant in providing technical support in the extended application of different honeycomb used as crashworthiness structures, and is absolutely essential in low volume and low mass energy absorber design. | LI Meng DENG Zongquan GUO Hongwei LIU Rongqiang DING Beichen | 2013 | Chinese Journal of Mechanical Engineering2013，26，4： | 5 |
| 4 | Three-layer intelligence of planetary exploration wheeled mobile robots:Robint,virtint,and humint显示文摘The great success of the Sojourner rover in the Mars Pathfinder mission set off a global upsurge of planetary exploration with autonomous wheeled mobile robots(WMRs),or rovers.Planetary WMRs are among the most intelligent space systems that combine robotic intelligence(robint),virtual intelligence(virtint),and human intelligence(humint) synergetically.This article extends the architecture of the three-layer intelligence stemming from successful Mars rovers and related technologies in order to support the R&D of future tele-operated robotic systems.Double-layer human-machine interfaces are suggested to support the integration of humint from scientists and engineers through supervisory(Mars rovers) or three-dimensional(3D) predictive direct tele-operation(lunar rovers).The concept of multilevel autonomy to realize robint,in particular,the Coupled-Layer Architecture for Robotic Autonomy developed for Mars rovers,is introduced.The challenging issues of intelligent perception(proprioception and exteroception),navigation,and motion control of rovers are discussed,where the terrains' mechanical properties and wheel-terrain interaction mechanics are considered to be key.Double-level virtual simulation architecture to realize virtint is proposed.Key technologies of virtint are summarized:virtual planetary terrain modeling,virtual intelligent rover,and wheel-terrain interaction mechanics.This generalized three-layer intelligence framework is also applicable to other systems that require human intervention,such as space robotic arms,robonauts,unmanned deep-sea vehicles,and rescue robots,particularly when there is considerable time delay. | DING Liang GAO HaiBo DENG ZongQuan LI YuanKai LIU GuangJun YANG HuaiGuang YU HaiTao | 2015 | Science China(Technological Sciences)2015，58，8： | 3 |
| 5 | Application of Lignin and Its Derivatives as Slow/Controlled Release Materials in Agricultural Fields显示文摘Lignin is the main by-product of pulp and papermaking and is not effectively utilized. Conversion of industrial lignins into value-added materials is beneficial for the effective utilization of resources as well as for environmental protection. Because of their adsorptivity, slow-release property,biocompatibility, and biodegradability, lignin and its derivatives find potential applications as eco-friendly slow/controlled release materials in agricultural fields. This report reviews the recent research advances in lignin-based slow/controlled release fertilizers and pesticides. | YingJuan Fu MengHua Qin ZhaoJiang Wang ZongQuan Li | 2018 | Paper And Biomaterials2018，3，1： | 3 |
| 6 | Wide range temperature detection with hybrid nanoparticles traced by surface-enhanced Raman scattering显示文摘We report on the fabrication of a class of surface-enhanced Raman scattering(SERS)active thermometers,which consists of60 nm gold nanoparticles,encoded with Raman-active dyes,and a layer of thermoresponsive poly(N-isopropylacrylamide)(PNIPAM)brush with different chain lengths.These SERS-active nanoparticles can be optimized to maintain spectrally silent when staying as single particles in dispersion.Increasing temperature in a wide range from 25 to 55°C can reversibly induce the interparticle self-aggregation and turn on the SERS fingerprint signals with up to 58-fold of enhancement by taking advantage of the interparticle plasmonic coupling generated in the process of thermo-induced nanoparticles self-aggregation.Moreover,the most significative point is that these SERS probes could maintain their response to temperature and present all fingerprint signals in the presence of a colored complex.However,the UV-Vis spectra can distinguish the differences faintly and the solution color shows little change in such complex mixture.This proof-of-concept and Raman technique applied here allow for dynamic SERS platform for onsite temperature detection in a wide temperature range and offer unique advantages over other detection schemes. | YIN Jun HE YaGuang LI Wei WU ZongQuan DING YunSheng | 2014 | Science China Chemistry2014，57，3： | 2 |
| 7 | Formation and structure of single crystalline magnesium borate(Mg3B206) nanobelts 显示文摘 | Jiang Zhang Zongquan Li and Bin Zhang | 2006 | Materials Chemistry and Physics2006，98，23： | 1 |
| 8 | Formation and struc - ture of single crystalline magnesium borate ( Mg3 B2 06 ) nanobelts 显示文摘 | Jiang Zhang Zongquan Li and Bin Zhang | 2006 | Materials Chemistry and Physic2006，98，23： | 1 |
| 9 | Role of hypoxia-inducible-1α in hepatocellular carcinoma cells usinga Tet-on inducible system to regulate its expression in vitro显示文摘 | Zongquan Xu Enyu Liu Cheng Peng Yunguang Li Zhaobin He Chuanzong Zhao Jun Niu | 2012 | Oncology Reports2012，，2： | 1 |
| 10 | A low- impact deployment hinge based on a novel intermittent mechanism 显示文摘 | GUO H W LI Zhongjie DENG Zongquan | 2014 | Applied Mechanics and Materials2014，643，： | 1 |
| 11 | An Underwater Image Bubble Noise Removal Method Based on Optical Flow显示文摘It is very important for underwater robots to accurately detect and locate target objects. However,under many circumstances,it is difficult to clearly observe the target object due to the existence of bubble noise. In this paper,we proposed a method to solve this problem. First,we used the LK optical flow algorithm to calculate the motion vector of the image background and compensate for the background motion.Then,the optical flow field of the bubbles was calculated by the HS optical flow algorithm,and the area where the bubble existed was obtained by binarizing the image. Finally,we used the adjacent frame image to repair the bubble area. We carried out a bubble noise removal experiment. The results show that this method can effectively remove the bubble noise in the image. | Hao Li Jianguo Tao Yang Luo Liping Deng Zongquan Deng | 2019 | Journal of Harbin Institute of Technology(New Series)2019，26，1： | 1 |
| 12 | Numerical simulations of motion behaviors of pan mechanism in a cooking robot with granular cuisine显示文摘 | Yuan Chen Zongquan Deng Bing Li | 2011 | Journal of Mechanical Science and Technology2011，25，3： | 1 |
| 13 | Formation and structure of single crystalline magnesium borate(Mg3B2O6)nanobelts显示文摘 | Zongquan Li Bin Zhang | 2006 | Material Chemistry and Physics2006，98，： | 1 |
| 14 | Crashworthiness design optimization of metal honeycomb energy absorber used in lunar lander显示文摘 | LI Meng DENG Zongquan LIU Rongqiang | 2011 | International Journal of crashworthiness2011，16，4： | 1 |
| 15 | The Effect of Cationic Polymers and Calcium Ions on Model Secondary Stickies Stability and Depositability显示文摘 | Li Zongquan Zhan Huaiyu | 2005 | Progress in Paper Recycling2005，14，4： | 1 |
| 16 | New Phases Formed During Nanocrystalline Titanium Preparation显示文摘The nanocrystalline titanium samples,having a grain size of about 10nm,are prepared by direct current magnetron sputtering and subsequent in situ conipa.dion.Two new phases are observed by means of transmission electron microscopyj one is a body-centered cubic structure with a lattice parameter of a=0.323nm,the other one is an orthorhombic structure with lattice parameters of a=0.303nm,b=0.391 nm and c=0.488nm.The formation of the two phases is also tentatively discussed. | QIN Yong ZHU Yong LI Zongquan | 1993 | Chinese Physics Letters1993，10，10： | 1 |
| 17 | Modeling and analysis of a muhi-dimensional vibration isolator based on the parallel mechanism 显示文摘 | Li Bing Zhao Wei Deng Zongquan | 2012 | Journal of Manufacturing Systems2012，31，： | 1 |
| 18 | Formation and structure of single crystalline magnesium borate (Mg3 B2 O6) nanobelts显示文摘 | Jiang Zhang Zongquan Li and Bin Zhang | 2006 | Materials Chemistry and Physics2006，98，23： | 1 |
| 19 | Modeling and analysis of a multi-dimensional vibration isolator based on the parallel mechanism显示文摘 | Li Bing Zhao Wei Deng Zongquan | 2012 | Journal of Manufacturing Systems2012，，31： | 1 |
| 20 | Simulation and analysis of asteroid force closure anchoring performance based on discrete element method显示文摘Asteroid exploration is significant for studying the origin of the solar system,establishing planetary defenses,and alleviating the resource crisis of the Earth.Asteroid anchoring is the basis of in-situ exploration and resource development and utilization.Therefore,the performance of asteroid force-closure anchoring is investigated using the discrete element method.The micro parameters of the simulated materials are calibrated with angle of repose and uniaxial compression experiments,based on which the regional modeling method is adopted to establish the anchoring discrete element model.Asteroid anchoring experiments are conducted on a self-developed microgravity simulation platform to verify the accuracy of the simulation model.The asteroid anchoring simulations are performed to investigate the influence of external force on the anchoring performance.The analysis of anchoring force varying with time and the interaction between the anchor and regolith particles reveals the influence mechanism of external force direction on the anchoring performance.The external force direction affects the critical anchoring force by influencing the failure of the force-closure structure.The comprehensive analysis of simulation results clarifies the variation of the critical anchoring force with the external forces.Finally,a stable anchoring region is established,beneficial for asteroid anchoring device design. | Tingzhang WANG Qiquan QUAN Hongshuai GAO Mengxue LI Dewei TANG Zongquan DENG | 2023 | Chinese Journal of Aeronautics2023，36，8： | 0 |
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