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Branch Processes of Vortex Filaments and Hopf Invariant Constraint on Scroll Wave

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Communications in Theoretical Physics 2009年第12期52卷 1149-1156页

作者： ZHU Tao REN ji-Rong mo Shu-Fan Institute of Theoretical Physics Lanzhou University Lanzhou 730000 China

In this paper, by making use of Duan＇s topological current theory, the evolution of the vortex filaments in excitable media is discussed in detail. The vortex filaments are found generating or annihilating at the limit points and encountering, splitting, or merging at the bifurcation points of a complex function Z（x, t）. [t is also shown that the Hopf invariant of knotted scroll wave filaments is preserved in the branch processes （splitting, merging, or encountering） during the evolution of these knotted scroll wave filaments. Furthermore, it also revealed that the ＂exclusion principle＂ in some chemical media is just the special case of the Hopf invariant constraint, and during the branch processes the ＂exclusion principle＂ is also protected by topology.

关键词： scroll wave Hopf invariant topology of knot vortex filament

Structural characteristics of central depression belt in deep-water area of the Qiongdongnan Basin and the hydrocarbon discovery of Songnan low bulge

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Acta Oceanologica Sinica 2021年第2期40卷 42-53页

作者： mo ji Qingbo Zeng Haizhang Yang Shuai Guo Kai Zhong CNOOC Research Institute Co. Ltd.Beijing 100028China State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China Marine Resource Research Center Tongji UniversityShanghai 200092China

The Qiongdongnan Basin has the first proprietary high-yield gas field in deep-water areas of China and makes the significant breakthroughs in oil and gas *** central depression belt of deep-water area in the Qiongdongnan Basin is constituted by five sags,*** Sag,Lingshui Sag,Songnan Sag,Baodao Sag and Changchang *** is a Cenozoic extensional basin with the basement of pre-Paleogene as a *** structural research in central depression belt of deep-water area in the Qiongdongnan Basin has the important meaning in solving the basic geological problems,and improving the exploration of oil and gas of this *** seismic interpretation and structural analysis in this article was operated with the 3D seismic of about 1.5×104 km2 and the 2D seismic of about 1×104 *** sampling points were selected to calculate the fault activity rates of the No.2 *** deposition rate was calculated by the ratio of residual formation thickness to deposition time *** paleo-geomorphic restoration was obtained by residual thickness method and impression *** faults in the central depression belt of deep-water area of this basin were mainly developed during Paleogene,and chiefly trend in NE–SW,E–W and NW–SE *** architectures of these sags change regularly from east to west:the asymmetric grabens are developed in the Ledong Sag,western Lingshui Sag,eastern Baodao Sag,and western Changchang Sag;half-grabens are developed in the Songnan Sag,eastern Lingshui Sag,and eastern Changchang *** tectonic evolution history in deep-water area of this basin can be divided into three stages,***-depression stage,thermal subsidence stage,and neotectonic *** Ledong-Lingshui sags,near the Red River Fault,developed large-scale sedimentary and subsidence by the uplift of Qinghai-Tibet Plateau during neotectonic *** Baodao-Changchang sags,near the northwest oceanic sub-basin,developed the large-scale magmatic activities and the tr

关键词： Qiongdongnan Basin deep-water area structural differentiation

Early Cretaceous extensional structures in the Liaodong Peninsula:Structural associations,geochronological constraints and regional tectonic implications

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Science China Earth Sciences 2011年第6期54卷 823-842页

作者： LIU JunLai ji mo SHEN Liang GUAN HuiMei Gregory A DAVIS State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China China National Offshore Oil Corporation Research Institute Beijing 100027 China Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China Department of Earth Sciences University of Southern California Los Angeles CA90089-0740 USA

Various extensional structures,e.g.,half grabens,detachment faults,and metamorphic core complexes,were formed in the Liaodong *** are two metamorphic core complexes (mcc's) in the western part of the Peninsula,*** Liaonan mcc and the Wanfu *** share the same lower plate and constitute a conjugate mcc *** Dayingzi detachment fault system and the three half grabens are exposed in the central and eastern parts,respectively.U-Pb dating of zircons from syntectonic plutons in the lower plates of the detachment faults and volcanic rocks from half graben basins indicates that their formation spans from 135 to 106 Ma,although the individual structure may be formed at a particular *** the differences in age of formation,in the regional attitudes,and in rooting depths,the extensional structures have great similarities in their kinematics,geometrical asymmetry,and coeval tectono-magmatic activities ***,the extensional structures constitute conjugate associations,but a particular one generally has asymmetric *** Cretaceous extensional structures extend from the Liaodong Peninsula to North China,Northeast China,South China,and eastern mongolia and Transbaikal area in *** extensional structures from different areas share many common *** Liaodong Peninsula is the miniature of the East Asia with respect to the formation of extensional structures in Early *** is suggested that the interaction of the Izanagi Plate with Eurasia Plate is responsible for the extension of *** structural mobility of the lithosphere,partly attributed to the fluid flow at the depth,and detachment faulting in both the crustal and mantle lithosphere provide important constraints on the development of Early Cretaceous extensional structures in the East Asia.

关键词： Liaodong Peninsula Cretaceous extension geochronology East Asia the North China Craton

Overview of finger friction and tactile perception

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Biosurface and Biotribology 2018年第4期4卷 99-111页

作者： Xue Zhou ji Liang mo Zhong Min jin School of Mechanical Engineering Tribology Research InstituteSouthwest Jiaotong UniversityChengdu 610031People's Republic of China School of Mechanical Engineering University of LeedsLeeds LS29JTUK

A tribological phenomenon usually occurs when fingers move against object *** plays an essentialrole during this process as well as in the corresponding tactile *** work focuses on an overview of fingerfriction and tactile perception,particularly from a synergistic perspective.A wealth of literature was analysed tosummarise the current trend in research methods and contents in this *** corresponding gaps in earlier studiesand a trend analysis are provided in this study.

关键词： friction Friction trend

The Dayingzi detachment fault system in Liaodong Peninsula and its regional tectonic significance

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Science China Earth Sciences 2011年第10期54卷 1469-1483页

作者： SHEN Liang LIU JunLai HU Ling ji mo GUAN HuiMei Gregory A DAVIS State Key Laboratory of Geological Processes and Mineral Resources China University ofGeosciences Beijing 100083 China China National Offshore Oil Corporation Research Institute Beijing 100027 China Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China Department of Earth Sciences University of Southern California Los Angeles CA90089-0740 USA

Large scale lithosphere thinning is an important characteristic of the destruction of the North China Craton （NCC） during the late Mesozoic. A series of extensional structures were developed under extensional setting, among which is the Dayingzi detachment fault system （DFS）. The DFS is constituted by three parts, volcano-sedimentary basins at the hanging wall, the Dayingzi-Huanghuadian detachment fault zone, and Paleoproterozoic metamorphic rock series and Mesozoic plutons at the footwall. In the section across the detachment fault zone, there is a sequence of tectonites including fault gouge, microbreccia, cataclastic-mylonites, mylonites, and gneissic biotite monzonite granite. Microstructural characteristics of tectonites and electron backscatter diffraction （EBSD） patterns of quartz indicate that the rocks from the footwall experienced a process from upper greenschist facies to lower greenschist facies. SHRIMP and LA-ICP MS U-Pb dating of zircons from the volcanic rocks in the basins, the tectonic evolution of the DFS is summarized as follows： 1） regional extension started at 135.0±1.2 Ma ago, when the detachment fault cut through the middle crust. Faulting induced the upwelling of magma and eruption of volcanic rocks and deformed a series of medium-acid volcanic rocks; 2） after 135.0±1.2 Ma, a large scale detachment faulting was active cross-cutting the mid-upper crust. The western margin of Jurassic and Triassic granite was ductilly and brittly sheared; besides, the Cretaceous volcanoedimentary rocks were tilted when the master fault approached the surface; 3） at around 127±1 Ma, the detachment fault stopped its activity and was intruded by the unsheared Cretaceous granite near Chaoyang. Comparison with the Liaonan metamorphic core complex （MCC） and other extensional structures in Liaodong Peninsula led to a general trend of including three zones in the Peninsula： MCC zone, detachment fault systems （DFS） zone, and half graben zone. MCC commonly cuts through t

关键词： Liaodong Peninsula detachment fault system Cretaceous extension lithosphere thinning North China Craton

Tectono-thermal evolution of the Liwan Sag, deepwater area in the Zhujiang River mouth Basin, northern South China Sea

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Acta Oceanologica Sinica 2018年第2期37卷 66-75页

作者： TANG Xiaoyin HUANG Shaopeng YANG Shuchun jiANG Guangzheng ji mo HU Shengbiao Geothermal and Environmental Research Laboratory Xi'an Jiaotong University Xi'an 710049 China State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100049 China CNOOC Research Institute Beijing 100027 China

The Liwan Sag, with an area of 4 000 km-2, is one of the deepwater sags in the Zhujiang River（Pearl River） mouth Basin, northern South China Sea. Inspired by the exploration success in oil and gas resources in the deepwater sags worldwide, we conducted the thermal modeling to investigate the tectono-thermal history of the Liwan Sag,which has been widely thought to be important to understand tectonic activities as well as hydrocarbon potential of a basin. Using the multi-stage finite stretching model, the tectonic subsidence history and the thermal history have been obtained for 12 artificial wells, which were constructed on basis of one seismic profile newly acquired in the study area. Two stages of rifting during the time periods of 49–33.9 Ma and 33.9–23 Ma can be recognized from the tectonic subsidence pattern, and there are two phases of heating processes corresponding to the *** reconstructed average basal paleo-heat flow values at the end of the rifting events are -70.5 and -94.2 mW/m^2 respectively. Following the heating periods, the study area has undergone a persistent thermal attenuation phase since 23 Ma and the basal heat flow cooled down to -71.8–82.5 mW/m^2 at present.

关键词： tectono-thermal evolution thermal history heat flow deepwater area Liwan Sag

The Liaonan Metamorphic Core Complex: Constitution, Structure and Evolution

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Acta Geologica Sinica(English Edition) 2006年第4期80卷 502-513页

作者： LIU Junlai GUAN Huimei ji mo CAO Shuyun HU Ling State Key Laboratory of Geological Processes and Mineral Resources and Key Laboratory of Lithosphere Tectonics and Lithoprobing Technology of the Ministry of Education China University of Geosciences Beijing 100083

The Liaonan metamorphic core complex （mcc） has a three-layer structure and is constituted by five parts, i.e. a detachment fault zone, an allochthonous upper plate and an supradetachment basin above the fault zone, and highly metamorphosed rocks and intrusive rocks in the lower plate. The allochthonous upper plate is mainly of Neoproterozoic and Paleozoic rocks weakly deformed and metamorphosed in pre-Indosinan stage. Above these rocks is a small-scale supradetachment basin of Cretaceous sedimentary and volcanic rocks. The lower plate is dominated by Archean TTG gneisses with minor amount of supracrustal rocks. The Archean rocks are intruded by late Mesozoic synkinematic monzogranitic and granitic plutons. Different types of fault rocks, providing clues to the evolution of the detachment fault zone, are well-preserved in the fault zone, e.g. mylonitic gneiss, mylonites, brecciated mylonites, microbreccias and pseudotachylites. Lineations in lower plate granitic intrusions have consistent orientation that indicate uniform top-to-NW shearing along the main detachment fault zone. This also provides evidence for the synkinematic characteristics of the granitic plutons in the lower plate. Structural analysis of the different parts in the mcc and isotopic dating of plutonic rocks from the lower plate and mylonitic rocks from detachment fault zone suggest that exhumation of the mcc started with regional crustal extension due to crustal block rotation and tangential shearing. The extension triggered magma formation, upwelling and emplacement. This event ended with appearance of pseudotachylite and fault gauges formed at the uppermost crustal level. U-Pb dating of single zircon grains from granitic rocks in the lower plate gives an age of 130±2.5 Ma, and biotite grains from the main detachment fault zone have ^40Ar-^39Ar ages of 108-119 Ma. Several aspects may provide constraints for the exhumation of the Liaonan mcc. These include regional extensional setting, cover/basemen

关键词： Liaonan metamorphic core complex crustal and lithosphere thinning crustal extension late Mesozoic

Reduced micro RNA 375 in colorectal cancer upregulates metadherin-mediated signaling

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World Journal of Gastroenterology 2019年第44期25卷 6495-6507页

作者： Seol-Hee Han ji-Su mo Won-Cheol Park Soo-Cheon Chae Department of Pathology School of MedicineWonkwang UniversityIksanChonbuk 54538South Korea Digestive Disease Research Institute Wonkwang UniversityIksanChonbuk 54538South Korea

BACKGROUND The human microRNA 375(MIR375)is significantly downregulated in human colorectal cancer(CRC)and we have previously shown that MIR375 is a CRCassociated *** metadherin(MTDH)is a candidate target gene of *** To investigate the interaction and function between MIR375 and MTDH in human *** A luciferase reporter system was used to confirm the effect of MIR375 on MTDH *** expression levels of MIR375 and the target genes were evaluated by quantitative RT-PCR(qRT-PCR),western blotting,or *** MTDH expression was found to be upregulated in human CRC tissues compared to that in healthy *** show that MIR375 regulates the expression of many genes involved in the MTDH-mediated signal transduction pathways[BRAF-MAPK and phosphatidylinositol-4,5-biphosphate-3-kinase catalytic subunit alpha(PIK3CA)-AKT]in CRC *** MTDH expression levels were found to inhibit NF-κB inhibitor alpha,which further upregulated NFKB1 and RELA expression in CRC *** Our findings suggest that suppressing MIR375 expression in CRC regulates cell proliferation and angiogenesis by increasing MTDH ***,MIR375 may be of therapeutic value in treating human CRC.

关键词： MicroRNA 375 Metadherin Mitogen-activated protein kinase Angiogenesis Cell proliferation Colorectal cancer

Inokosterone Is a Potential Drug Target of Estrogen Receptor 1 in Rheumatoid Arthritis Patients:Analysis from Active Ingredient of Cyathula Officinalis

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Chinese Journal of Integrative Medicine 2021年第10期27卷 767-773页

作者： mo ji-hao XIE Han-kun ZHOU Ye-mian Ng Sihan-benjamin LI Shao-xia WANG Lei Department of Medical Laboratory Luoyang Orthopedic Hospital of Henan ProvinceOrthopedic Institute of Henan ProvinceLuoyangHenan Province(471002)China Miller School of Medicine University of Miami(33136)MiamiFLUSA Institute of Technical Biology&Agriculture Engineering Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei(230031)China Eatobe Pte.Limited(573969) Singapore

Objective:To elucidate the active compounds and the molecular mechanism of Cyathula Off/c/na//s as a drug treatment for rheumatoid arthritis(RA).Methods:The target genes of active ingredients from Cyathula Officinalis were obtained from bioinformatics analysis tool for the molecular mechanism of traditional Chinese *** protein-protein interaction between the target genes were analyzed using STRING and *** transcriptome of RA patients compared to healthy people(GSE121894)were analyzed using R program package *** relative expression of the target genes was obtained from the RNA-seq *** molecular docking analyses were processed based on the molecular model of estrogen receptor 1(ESR1)binding with estradiol(PDB ID:1A52).The binding details were analyzed by ***:Inokosterone,ecdysterone,and cyaterone were the 3 active ingredients from Cyathula Officinalis that bind to target *** all the significantly changed genes from RA patients,ESR1,ADORA1,and ANXA1 were significantly increased in mRNA samples of RA ***:ESR1,the transcription factor that binds inokosterone in the molecular binding analysis,is the target protein of Cyathula Officinalis.

关键词： rheumatoid arthritis estrogen receptor 1 inokosterone Cyathula Officinalis Chinese medicine