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| 1 | A preliminary study on the volcanic intrusive complex type beryllium metallogenic belt from the southeast coast of China显示文摘Beryllium(Be)is one of the unsubstitutable key metals in strategic emerging industries and national defense industries,mainly originating from volcanogenic Be deposits.Thus,volcanogenic Be deposits have become important research objects of key metal deposits,with a focus on their occurrence,metallogenic mechanism,and resource distribution.In the southeast coast of China,the Late Mesozoic volcanic intrusive complex has a good Be metallogenic background,and strong Be mineralization occurs in some areas.Field geological investigation and analyses of samples from Southeast Zhejiang as well as Northeast and Southeast Fujian indicate that Be mineralization in the southeast coast of China is closely related to the hydrothermal processes in the volcanic intrusive complex.In Southeast Zhejiang,Be ore in the Qingtian area mainly occurs in granite porphyry,with the Be content reaching 939 ppm,while strong Be mineralization from Zhangji rhyolite porphyry in the Pingyang area contains up to 11400 ppm Be.In Xiapu County,Northeastern Fujian,the Dawan Be deposit is characterized by constituents of helvite and beryl.In Pinghe County,Southeastern Fujian,the Fulishi Be ore is a quartz vein beryl-type ore.These results suggest that the volcanic intrusive complex area in the southeast coast of China has a wide range of Be mineralization and better Be metallogenic potential,and it is expected to become an important Be metallogenic belt in China.Thus,we should thoroughly investigate the Be resources of granite porphyry,rhyolite porphyry,quartz porphyry,and quartz vein in this volcanic rock area,which can provide a theoretical basis for the exploration and guiding prospecting of volcanic intrusive complex Be deposits. | Can RAO Rucheng WANG Fuyuan WU Xudong CHE Xiaofeng LI Qi WANG Zhiqi ZHANG Runqiu WU | 2022 | Science China Earth Sciences2022，65，8： | 2 |
| 2 | TOX deficiency facilitates the differentiation of IL-17A-producingγδT cells to drive autoimmune hepatitis显示文摘The specification of theαβ/γδlineage and the maturation of medullary thymic epithelial cells(mTECs)coordinate central tolerance to self-antigens.However,the mechanisms underlying this biological process remain poorly clarified.Here,we report that dual-stage loss of TOX in thymocytes hierarchically impaired mTEC maturation,promoted thymic IL-17A-producingγδT-cell(Tγδ17)lineage commitment,and led to the development of fatal autoimmune hepatitis(AIH)via different mechanisms.Transfer ofγδT cells from TOX-deficient mice reproduced AIH.TOX interacted with and stabilized the TCF1 protein to maintain the balance ofγδT-cell development in thymic progenitors,and overexpression of TCF1 normalizedαβ/γδlineage specification and activation.In addition,TOX expression was downregulated inγδT cells from AIH patients and was inversely correlated with the AIH diagnostic score.Our findings suggest multifaceted roles of TOX in autoimmune control involving mTEC and Tγδ17 development and provide a potential diagnostic marker for AIH. | Qifeng He Yijun Lu Wenfang Tian Runqiu Jiang Weiwei Yu Yong Liu Meiling Sun Fei Wang Haitian Zhang Ning Wu Zhongjun Dong Beicheng Sun | 2022 | Cellular & Molecular Immunology2022，19，10： | 1 |
| 3 | Breast Lump Recognition Algorithms Based on Ultrasound Radio-Frequency Signals显示文摘A method for evaluating the benign and malignant breast tumors based on radio?frequency(RF)data was explored by extracting the characteristic parameters of breast ultrasound RF signals.The breast biopsy data were used as the reference data for judging the lump benign or malignant.The extracted ultrasound RF data were reconstructed and segmented by computer aided method to obtain the breast tumor region of interest(ROI)and its characteristic parameters(entropy and standard deviation).The characteristic parameters were statistically analyzed to evaluate the relationship between characteristic parameters and benign or malignant breast tumors.The results indicate the entropy and standard deviation of normal region is much higher than that of lump region,which shows that the standard deviation and entropy characteristic parameters of ultrasonic RF signals are meaningful in the diagnosis of breast tumors.The proposed method provides a new direction for computer?aided diagnosis of benign and malignant breast tumors. | YAN Yu CAI Xiaowei ZHU Wei CAI Runqiu WU Yiyun | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，4： | 0 |
| 4 | Seismic energy dispersion compensation by multi-scale morphology显示文摘Seismic energy decays while propagating subsurface, which may reduce the resolution of seismic data. This paper studies the method of seismic energy dispersion compensation which provides the basic principles for multi-scale morphology and the spectrum simulation method. These methods are applied in seismic energy compensation. First of all, the seismic data is decomposed into multiple scales and the effective frequency bandwidth is selectively broadened for some scales by using a spectrum simulation method. In this process, according to the amplitude spectrum of each scale, the best simulation range is selected to simulate the middle and low frequency components to ensure the authenticity of the simulation curve which is calculated by the median method, and the high frequency component is broadened. Finally, these scales are reconstructed with reasonable coefficients, and the compensated seismic data can be obtained. Examples are shown to illustrate the feasibility of the energy compensation method. | Yu Junqing Wang Runqiu Liu Taoran Zhang Zhenglong Wu Jian Jiang Yongyong Sun Lipeng Xia Pei | 2014 | Petroleum Science2014，11，3： | 0 |
| 5 | Synthesis and Swelling Behaviors of Microcrystal Muscovite Composite Superabsorbent by Photopolymerization显示文摘A new microcrystal muscovite composite superabsorbent was synthesized by UV photopolymerization using 2-hydroxy-2-methylpropiophenone(1 173) as photoinitiator,N,N-methylene bisacrylamide(MBA) as crosslinker,acrylic acid(AA),acrylamide(AM) and sodium 4-styrenesulfonate(SSS) as comonomers.Factors affecting water and salt absorption of the microcrystal muscovite composite superabsorbent,such as crosslinker amount,microcrystal muscovite concentration,photoinitiator content,and SSS concentration,were systematically studied.Water retention capacity of the composite superabsorbent was also investigated.The results show that microcrystal muscovite composite superabsorbent has water absorbency of 550 g/g,salt absorbency of 62 g/g,and water retention of 60% after heating at 70 ℃ for 40 h.The microcrystal muscovite is physically combined into the polymeric network without destroying its polycrystalline structure and the surface of the microcrystal muscovite composite superabsorbent has some deep and small holes. | 万涛 LIAO Ling HUANG Runqiu WU Daqing Tang Li XIONG Jing CHEN Qiaohe | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，1： | 0 |
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