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Destruction of the Northern Margin of the North china Craton in Mid-Late triassic: Evidence from Asthenosphere-derived Mafic Enclaves in the Jiefangyingzi Granitic Pluton from the chifeng Area, Southern Inner Mongolia

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Acta Geologica Sinica(English Edition) 2020年第4期94卷 1071-1092页

作者： LIU Jianfeng LI Jinyi chi Xiaoguo ZHENG Peixi HU Zhaochu ZHANG Xiaowei Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China Key Laboratory of Mineral Resources Evaluation in Northeast Asia Ministry of Land and ResourcesChangchun 130061China College of Earth Science Jilin UniversityChangchun 130061China State Key Laboratory of Geological Processes and Mineral Resources China University of GeosciencesWuhan 430074China

the petrology, geochronology and geochemistry of the mafic enclaves in the Mid-Late triassic Jiefangyingzi pluton from chifeng area, southern Inner Mongolia, in china are studied to reveal their petrogenetic relationship with the host pluton. Furthermore, the coeval magmatic assemblage and its petrogenesis on the northern margin of the North china craton(NCC) are studied synthetically to elucidate their tectonic setting and the implications for the destruction of the NCC. Zircon U-Pb dating reveals that the mafic enclaves formed at 230.4 ± 2.2 Ma, which is similar to the age of the host pluton. the most basic mafic enclaves belong to weak alkaline rocks, and they display rare earth element(REE) and trace element normalized patterns and trace element compositions similar to those of ocean island basalt(OIB). In addition, they have positive εNd(t) values(+3.84 to +4.94) similar to those of the Cenozoic basalts on the northern margin of the NCC. All of these geochemical characteristics suggest that the basic mafic rocks originated from the asthenosphere. Petrological and geochemical studies suggest that the Jiefangyingzi pluton and the intermediate mafic enclaves were formed by the mixing of the asthenosphere-derived and crust-derived magmas in different degrees. the Mid-Late triassic magmatic rocks on the northern margin of the NCC could be classified into three assemblages according to their geochemical compositions: alkaline series, weak alkaline–sub-alkaline series and sub-alkaline series rocks. Petrogenetic analyses suggest that the upwelling of the asthenosphere played an important role in the formation of these Mid-Late triassic magmatic rocks. Basing on an analysis of regional geological data, we suggest that the northern margin of the NCC underwent destruction due to the upwelling of the asthenosphere during the Mid-Late triassic, which was induced by the delamination of the root of the collisional orogeny between Sino-Korean and Siberian paleoplates in Late P

关键词： mafic enclave craton destruction asthenosphere Mid-Late triassic North china craton

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Asymmetric thermally Activated Delayed Fluorescence Materials Rendering High-performance OLEDs through both thermal Evaporation and Solution-processing

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Chemical Research in chinese Universities 2022年第6期38卷 1526-1531页

作者： GAO Shiyuan CHEN Xiaojie GE Xiangyu CHEN Zhu ZHAO Juan chi Zhenguo State Key Laboratory of OEMt School of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou510275P.R.China State Key Laboratory of OEMt School of ChemistrySun Yat-sen UniversityGuangzhou510275P.R.China

Exploring high-efficiency thermally activated delayed fluorescence(tADF)materials is of great importance regarding to organic light-emitting diode(OLED).Herein,we present a design strategy for developing asymmetric tADF materials based on a diphenyl sulfone-phenoxazine structure,resulting in efficient tADF emitters(CzPXZ and t-CzPXZ)with aggregation-induced emission properties,while t-CzPXZ is modified with tert-butyl *** two compounds exhibit high solid-state luminescence,efficient tADF,and significantly impressive device performances by both thermal evaporation and solution *** an instance,CzPXZ and t-CzPXZ enable the thermally-evaporated OLEDs with high external quantum efficiencies(EQEs)of over 20%.Meanwhile,t-CzPXZ allows the solution-processed device with a high EQE of 16.3%with low-efficiency roll-off,attributing to the enhanced molecular solubility and suppressed excitons quenching through tert-butyl modification on *** results reveal that the proposed asymmetric structure is a promising approach for developing high-efficiency tADF materials and OLEDs.

关键词： thermally activated delayed fluorescence Asymmetric strategy Organic light-emitting diode thermal evaporation Solution processing

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Population dynamics inside cancer biomass driven by repeated hypoxia-reoxygenation cycles

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Frontiers of Electrical and Electronic Engineering in china 2014年第3期9卷 85-99页

作者： chi Zhang Sha Cao Ying Xu Computational Systems Biology Lab Department of Biochemistry and Molecular Biology Institute of Bioinformatics Universityof Georgia Athens GA 30602 USA Collegeof Computer Science and technology Jilin University Changchun 130012 China

A computational analysis of genome-scale transcriptomic data collected on -1,700 tissue samples of three cancer types： breast carcinoma, colon adenocarcinoma and lung adenocarcinoma, revealed that each tissue consists of （at least） two major subpopulations of cancer cells with different capabilities to handle fluctuating Oz levels. the two populations have distinct genomic and transcriptomic characteristics, one accelerating its proliferation under hypoxic conditions and the other proliferating faster with higher O2 levels, referred to as the hypoxia and the reoxygenation subpopulations, respectively. the proportions of the two subpopulations within a cancer tissue change as the average 02 level changes. they both contribute to cancer development but in a complementary manner. the hypoxia subpopulation tends to have higher proliferation rates than the reoxygenation one as well as higher apoptosis rates; and it is largely responsible for the acidic environment that enables tissue invasion and provides protection against attacks from t-cells. In comparison, the reoxygenation subpopulation generates new extracellular matrices in support of further growth of the tumor and strengthens cell-cell adhesion to provide scaffolds to keep all the cells connected. this subpopulation also serves as the major source of growth factors for tissue growth. these data and observations strongly suggest that these two major subpopulations within each tumor work together in a conjugative relationship to allow the tumor to overcome stresses associated with the constantly changing Oz level due to repeated growth and angiogenesis. the analysis results not only reveal new insights about the population dynamics within a tumor but also have implications to our understanding of possible causes of different cancer phenotypes such as diffused versus more tightly connected tumor tissues.

关键词： cancer population dynamics intratumor heterogeneity cancer cell subpopulations hypoxia reoxygenation cancer evolution

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Dissipative Control for an Epidemic System with Exponential Incidence Rate 36

Dissipative Control for an Epidemic System with Exponential ...

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第36届中国控制会议

作者： Xinli chi Hongxia Yu Qingzhong Gao Shenyang Institute of Engineering School of Information Science and Engineering Northeastern University

ISBN: (纸本)9781538629185

In this paper, the bifurcation and chaos dissipative control for a class of epidemic system with exponential incidence rate. Firstly, the dynamic behavior analysis of epidemic system is provided in detail. the bifurcation and chaos characters of the system with parameter variations is verified through numerical simulations. Furthermore, a effective t-S fuzzy model for infectious disease is adopted, and the control problem of nonlinearity system is transformed into the control problem of the linear system. Linear matrix inequalities（LMIs） technique is used to design the dissipation controller to simplify the solve process. the proposed dissipative controller approaches successfully eliminate the bifurcation and chaos appeared in the system. the effectiveness is verified by some numerical simulation results.

关键词： Nonlinear control chaos dissipative control t-S model

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MXene-ti3C2tx for watt-level high-efficiency pulse generation in a 2.8μm mid-infrared fiber laser

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Photonics Research 2020年第6期8卷 972-977页

作者： CHEN WEI LIQIANG ZHOU DONGSHENG WANG HAO chi Hua HUANG HAN ZHANG YONG LIU State Key Laboratory of Electronic thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China College of Electrical Engineering Sichuan UniversityChengdu 610065China

We report a watt-level passively Q switched 2.8μm mid-infrared multi-mode fiber laser by employing multi-layered two dimensional MXene-ti3C2tx as the saturable absorber(SA).the MXene-ti3C2tx is fabricated by selectively etching aluminum layers in *** non-saturable loss,modulation depth,and saturable inten-sity of the SA at 2866 nm were measured to be 25.0%,33.2%,and 0.043 GW/cm^2,*** maximum average output power of the ti3C2tx Q-switched fiber laser reached 1.09 W at 28.23%slope *** pulse repetition rate,shortest pulse width,pulse peak power,and single-pulse energy were 78.12 kHz,1.04μs,13.4 W,and 13.93μJ,*** is the frst demonstration of watt-level pulse gencration in a mid-infrared fiber laser using low dimensional materials,to the best of our *** results indicate that the ti3C2tx is a reliable and superior broadband SA for high power mid-infrared pulsed laser generation.

关键词： fiber pulse laser

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StING regulates BCR signaling in normal and malignant B cells

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Cellular & Molecular Immunology 2021年第4期18卷 1016-1031页

作者： chih-Hang Anthony tang Avery C.Lee Shiun Chang Qin Xu Andong Shao Yun Lo Walker t.Spalek Javier A.Pinilla-lbarz Juan R.Del Valle chih-chi Andrew Hu the Wistar Institute 3601 Spruce StreetPhiladelphiaPA 19104USA Department of Malignant Hematology H.Lee Moffitt Cancer Center&Research InstituteTampaFL 33612USA Department of Chemistry&Biochemistry University of Notre DameNotre DameIN 46556USA

StING is an endoplasmic reticulum(ER)-resident protein critical for sensing cytoplasmic DNA and promoting the production of type Ⅰ interferons;however,the role of StING in B cell receptor(BCR)signaling remains *** generated StING V154M knock-in mice and showed that B cells carrying constitutively activated StING specifically degraded membrane-bound IgM,Ig a and Igβ via SEL1L/HRD1-mediated ER-associated degradation(ERAD).B cells with activated StING were thus less capable of responding to BCR activation by phosphorylating Igα and Syk than those without activated *** immunized with t-independent antigens,StING V154M mice produced significantly fewer antigen-specific plasma cells and antibodies than immunized wild-type(Wt)*** further generated B cell-specific StING^(KO) mice and showed that StING^(KO) B cells indeed responded to activation by transducing stronger BCR signals than their StING-proficient *** B cell-specific StING^(KO) mice were t-independently immunized,they produced significantly more antigen-specific plasma cells and antibodies than immunized StIN^(Wt)*** both human and m ouse IGHV-unmutated malignant chronic lymphocytic leukemia(CLL)cells downregulated the expression of StING,we explored whether StING downregulation could contribute to the well-established robust BCR signaling phenotype in malignant CLL *** generated a StING-deficient CLL mouse model and showed that StING-deficient CLL cells were indeed more responsive to BCR activation than their StING-proficient *** results revealed a novel B cell-intrinsic role of StING in negatively regulating BCR signaling in both normal and malignant B cells.

关键词： StING BCR ER-associated degradation CLL Plasma cells

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Recent progress of g-C_(3)N_(4) applied in solar cells

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Journal of Materiomics 2021年第4期7卷 728-741页

作者： Xiaojie Yang Li Zhao Shimin Wang Jin Li Bo chi Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsHubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsHubei UniversityWuhan430062China Center for Fuel Cell Innovation School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China

Graphite carbon nitride(gC_(3)N_(4)),a two-dimensional polymer semiconductor material,has good semiconductor properties,suitable electronic energy band structure,excellent physical and chemical *** is widely used in the field of energy and materials science such as photoelectric *** this paper,the progress of g-C_(3)N_(4) in dye sensitized solar cells(DSSC)and perovskite solar cells(PSC)was *** a new semiconductor material,g-C_(3)N_(4) has the advantages of simple preparation,abundant amino and Lewis basic ***,on the basis of excellent structure of g-C_(3)N_(4),its electronic and optical properties are utilized to further expand its application in the field of photoelectric conversion.

关键词： g-C3N4 Photoanode Additive Interface engineering Dye sensitized solar cells Perovskite solar cells

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EXACt BOUNDARY CONtROLLABILItY OF 1-D NONLINEAR SCHRDINGER EQUAtION

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Applied Mathematics(A Journal of chinese Universities) 2007年第3期22卷 277-285页

作者： Zong Xiju Zhao Yi Yin Zhaoyang chi tao Dept. of Math. Zhongshan Univ. Guangzhou 510275 China First Middle School of tengzhou Shandong 277013 China School of Control Science and Engineering Jinan Univ. Jinan 250022 China

In this paper, the boundary control problem of a distributed parameter system described by the Schrodinger equation posed on finite interval α≤x≤β：{ iyt ＋yzz＋｜y｜^2y = 0, y（α, t） = h1 （t）, y（β, t）=h2（t） for t〉0 （S）is considered. It is shown that by choosing appropriate control inputs （hi）, （j = 1, 2） one can always guide the system （S） from a given initial state φ∈H^S（α,β）, （s ∈ R） to a terminal state φ∈ H^s（α,β）, in the time period [0, t]. the exact boundary controllability is obtained by considering a related initial value control problem of SchrSdinger equation posed on the whole line R. the discovered smoothing properties of Schrodinger equation have played important roles in our approach; this may be the first step to prove the results on boundary controllability of （semi-linear） nonlinear Schrodinger equation.

关键词： nonlinear Schrodinger equation exact boundary controllability, Hilbert uniqueness method.

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thermoacoustic tomography of in vivo rat brain

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Journal of Innovative Optical Health Sciences 2017年第4期10卷 84-90页

作者： Yuan Zhao Zihui chi Lin Huang Zhu Zheng Jinge Yang Huabei Jiang School of Physical Electronics University of Electronic Science and technology of china No.2006 Xiyuan AveWest Hi-Tech Zone ChengduSichuan 611731P.R.China Department of Medical Engineering University of South Florida tampa FL 33620USA Center for Information in Medicine University of Electronic Science and technology of china No.2006 Xiyuan AveWest Hi-Tech Zone ChengduSichuan 611731P.R.China

We present for the¯rst time in vivo imaging of rat brain using microwave-induced thermoacoustic tomography(tAt).the in vivo imaging of rat brain was realized through an unconventional delivery of microwave energy from the front of rat brain(while the transducer was scanned along coronal plane of the animal brain),which maximized the microwave penetration into the *** addition,we found that the imaging contrast was highly dependent on the direction of the electric¯eld polarization(EFP)and that more tissue structures/compositions could be revealed when both X-and Y-EFPs were used for *** in vivo tAt images of rat brain obtained were compared with the 3.0 t MRI images and histological photographs,and numerous important brain anatomical structures were identi¯*** example of our tAt approach for imaging a foreign object embedded in a rat brain was also *** study suggests that tAt has a great potential to be used in neuroscience studies and in noninvasive imaging of brain disorders.

关键词： thermoacoustic imaging tomography rat brain

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A conserved inverted repeat from rice plastome functions as an intrinsic transcription terminator

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chinese Science Bulletin 2005年第15期50卷 1669-1672页

作者： LIN chi-Hui LIANG Yu-din CHEN Liang-Jwu Institute of Molecular Biology National Chung-Hsing UniversityTaichung 402 Taiwan China Institute of Chemistry Academia Sinica Taipei 115 Taiwan China

Results from a previous rice transcription mapping and the GeSter algorithm analysis used in this in-vestigation for rice plastid genome suggest that an inverted repeat, IRs18, in 3′ region of the plastid rps18 gene may serve as a transcription terminator. the in vitro transcription assay showed that the transcript ending at the IRs18 was not proc-essed by ribonucleases but terminated intrinsically in an rNtP substrate-dependent manner as demonstrated for the first time in plant gene regulation. For the poly-t tract (ttCtttttt) 3′-proximal to the IRs18, the C base conver-sion to t resulting in a perfect 9 ts can dramatically increase termination efficiency, which is a common feature of bacte-rial intrinsic termination. this study is the first case to indi-cate that a conserved inverted repeat with a poly-t tract from higher plant chloroplast contributes to transcription termination of the translation-associated rps18 gene in a manner with the intrinsic termination, probably resulting from a heritage of endosymbiosis.

关键词：水稻叶绿体转录基因反向重复质体基因组

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