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| 1 | Giant photonic spin Hall effect in momentum space in a structured metamaterial with spatially varying birefringence显示文摘The photonic spin Hall effect(SHE)in the reflection and refraction at an interface is very weak because of the weak spin-orbit interaction.Here,we report the observation of a giant photonic SHE in a dielectric-based metamaterial.The metamaterial is structured to create a coordinate-dependent,geometric Pancharatnam–Berry phase that results in an SHE with a spin-dependent splitting in momentum space.It is unlike the SHE that occurs in real space in the reflection and refraction at an interface,which results from the momentum-dependent gradient of the geometric Rytov–Vladimirskii–Berry phase.We theorize a unified description of the photonic SHE based on the two types of geometric phase gradient,and we experimentally measure the giant spin-dependent shift of the beam centroid produced by the metamaterial at a visible wavelength.Our results suggest that the structured metamaterial offers a potential method of manipulating spin-polarized photons and the orbital angular momentum of light and thus enables applications in spin-controlled nanophotonics. | Xiaohui Ling Xinxing Zhou Xunong Yi Weixing Shu Yachao Liu Shizhen Chen Hailu Luo Shuangchun Wen Dianyuan Fan | 2015 | Light(Science & Applications)2015,4,1: | 15 |
| 2 | Controllable photonic spin Hall effect with phase function construction显示文摘Photonic spin Hall efect(SHE)provides new opportunities for achieving spin-based photonics applications.However,flexibly manipulating the spin-dependent sltting(SDS)of photonic SHE and imposing extra phase modulation on the two spin components are always a challenge.Here,a controllable SHE mechanism based on phase function construction is reported.It is conduded that the phases with specific functional structures performing a coordinate translation are equivalent to integrating a gradient phase to the original phases.Hence,the original phase can be used for independent phase modulation,and the gradient phase originating from the co-ordinate translation is capable of manipulating the SDS.A metasurface with Pancharatnam-Berry phase that can impose conjugate phases to the two spin components of light is fabricated to verify this mechanism.By shifing the light position,the SDS is continuously manipulated in the visible region,which is successfully used for detecting the polarization llipticity.The extra phase modulation is also performed with the original phase and thus enables measuring singular beams.It is anticipated that the controllable SHE manipulation method may open new avenues in the fields of spin photonics,optical sensing,optical communications,etc. | YANLIANG HE ZHIQIANG XIE BO YANG XUEYU CHEN JUNMIN LIU HUAPENG YE XINXING ZHOU YING LI SHUQING CHEN DIANYUAN FAN | 2020 | Photonics Research2020,8,6: | 3 |
| 3 | Review of the Metallogenic Regularity of Magnesite Deposits in China显示文摘China has abundant reserves of magnesite, making it the world's leading source of this strategic mineral.Sparry magnesite is the main type of magnesite deposit, and is easy to exploit.It occurs mainly as the sedimentary-metamorphic type.Production is centred on eastern Liaoning Province, where a world-class large to super large magnesite ore processing and production facility has been developed.Hydrothermal metasomatic deposits, associated with ultramafic complexes and eluvial deposits produced by weathering, are two other important types found in China.The Western section of the Bangonghu-Nujiang metallogenic belt is an important target region for prospecting lake-sedimentary magnesite deposits.Based on a systematic analysis of material from 62 magnesite production areas, this study investigated the metallogeny of magnesite and delineated 13 magnesite metallogenic belts.Maps were produced showing metallogenic regularities in magnesite deposits, the metallogenic system of the magnesite deposits, and the distribution of the metallogenic belts of Chinese magnesite deposits.It provides a theoretical basis for forecasting the location of potential magnesite resources in China.Finally, it explores some key scientific issues, including the formation processes of ultra magnesite ore-concentrated areas, and their sources of magnesium. | ZHAO Zheng CUI Xiaolin WANG Denghong CHEN Yuchuan BAI Ge LI Jiankang LIU Xinxing | 2015 | Acta Geologica Sinica(English Edition)2015,89,5: | 3 |
| 4 | Metabolic regulation of T cell development by Sinl-mTORC2 is mediated by pyruvate kinase M2显示文摘Glucose metabolism plays a key role in thymocyte development. The mammalian target of rapamycin complex 2 (mT0RC2) is a critical regulator of cell growth and metabolism, but its role in early thymocyte development and metabolism has not been fully studied. We show here that genetic ablation of Sinl, an essential component of mTORC2, in T lineage cells results in severely impaired thymocyte development at the CD4^- CD8^- double negative (DN) stages but not at the CD4^+ CD8^+ double positive (DP) or later stages. Notably, Sinl-deficient DN thymocytes show markedly reduced proliferation and glycolysis.Importantly, we discover that the M2 isoform of pyruvate kinase (PKM2) is a novel and crucial Sinl effector in promoting DN thymocyte development and metabolism. At the molecular level, we show that Sinl-mTORC2 controls PKM2 expression through an AKT-dependent PPAR-y nuclear translocation. Together, our study unravels a novel mTORC2-PPAR-γ-PKM2 pathway in immune-metabolic regulation of early thymocyte development. | Xinxing Ouyang Yuheng Han Guojun Qu Man Li Ningbo Wu Hongzhi Liu Omotooke Arojo Hongxiang Sun Xiaobo Liu Dou Liu Lei Chen Qiang Zou Bing Su | 2019 | Journal of Molecular Cell Biology2019,11,2: | 3 |
| 5 | Two random walks on the open cluster of Z^2 meet infinitely often显示文摘We prove that two independent continuous-time simple random walks on the infinite open cluster of a Bernoulli bond percolation in the lattice Z2 meet each other infinitely many times.An application to the voter model is also discussed. | Chen XinXing Chen DaYue | 2010 | Science China Mathematics2010,53,8: | 3 |
| 6 | MAP3K2 augments Th1 cell differentiation via IL-18 to promote T cell-mediated colitis显示文摘T cell-mediated immunity in the intestine is stringently controlled to ensure proper immunity against pathogenic microbes and to prevent autoimmunity,a known cause of inflammatory bowel disease.However,precisely how T cells regulate intestine immunity remains to be fully understood.In this study,we found that mitogen-activated protein kinase kinase kinase 2(MAP3K2)is required for the CD4^(+)T cell-mediated inflammation in the intestine.Using a T cell transfer colitis model,we found that MAP3K2-deficient naïve CD4^(+)T cells had a dramatically reduced ability to induce colitis compared to wild type T cells.In addition,significantly fewer IFN-γ-but more IL-17A-producing CD4^(+)T cells in the intestines of mice receiving MAP3K2-deficient T cells than in those from mice receiving wild type T cells was observed.Interestingly,under well-defined in vitro differentiation conditions,MAP3K2-deficient naïve T cells were not impaired in their ability to differentiate into Th1,Th17 and Treg.Furthermore,the MAP3K2-regulated colitis severity was mediated by Th1 but not Th17 cells in the intestine.At the molecular level,we showed that MAP3K2-mediated Th1 cell differentiation in the intestine was regulated by IL-18 and required specific JNK activation.Together,our study reveals a novel regulatory role of MAP3K2 in intestinal T cell immunity via the IL-18-MAP3K2-JNK axis and may provide a novel target for intervention in T cell-mediated colitis. | Ningbo Wu Dongping Chen Hongxiang Sun Jianmei Tan Yao Zhang Tianyu Zhang Yuheng Han Hongzhi Liu Xinxing Ouyang Xiao-Dong Yang Xiaoyin Niu Jie Zhong Zhengting Wang Bing Su | 2021 | Science China(Life Sciences)2021,64,3: | 3 |
| 7 | Observation of tiny polarization rotation rate in total internal reflection via weak measurements显示文摘In this paper,we examine the tiny polarization rotation effect in total internal reflection due to the spin–orbit interaction of light.We find that the tiny polarization rotation rate will induce a geometric phase gradient,which can be regarded as the physical origin of photonic spin Hall effect.We demonstrate that the spin-dependent splitting in position space is related to the polarization rotation in momentum space,while the spin-dependent splitting in momentum space is attributed to the polarization rotation in position space.Furthermore,we introduce a quantum weak measurement to determine the tiny polarization rotation rate.The rotation rate in momentum space is obtained with 118 nm,which manifests itself as a spatial shift,and the rotation rate in position space is achieved with 38 μrad∕λ,which manifests itself as an angular shift.The investigation of the polarization rotation characteristics will provide insights into the photonic spin Hall effect and will enable us to better understand the spin–orbit interaction of light. | CHENGQUAN MI SHIZHEN CHEN XINXING ZHOU KAI TIAN HAILU LUO SHUANGCHUN WEN | 2017 | Photonics Research2017,5,2: | 2 |
| 8 | High level architecture evolved modular federation object model显示文摘To improve the agility,dynamics,composability,reusability,and development efficiency restricted by monolithic federation object model(FOM),a modular FOM is proposed by high level architecture(HLA)evolved product development group.This paper reviews the state-of-the-art of HLA evolved modular FOM.In particular, related concepts,the overall impact on HLA standards,extension principles,and merging processes are discussed. Also permitted and restricted combinations,and merging rules are provided,and the influence on HLA interface specification is given.The comparison between modular FOM and base object model(BOM)is performed to illustrate the importance of their combination.The applications of modular FOM are summarized.Finally,the significance to facilitate compoable simulation both in academia and practice is presented and future directions are pointed out. | Wang Wenguang Xu Yongping Chen Xinx Chen Xin Li Qun Wang Weiping | 2009 | Journal of Systems Engineering and Electronics2009,20,3: | 2 |
| 9 | A systematic review of the Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity and its Portsmouth modification as predictors of post-operative morbidity and mortality in patients undergoing pancreatic surgery显示文摘 | Haolu Wang Tao Chen Hui Wang Yanyan Song Xinxing Li Jian Wang | 2013 | The American Journal of Surgery2013,,: | 2 |
| 10 | Low-dimensional catalysts for oxygen reduction reaction显示文摘Developing highly efficient electrocatalysts to facilitate the sluggish cathodic oxygen reduction reaction(ORR)is a key challenge for high-performance fuel cells.Low-dimensional materials have attracted great attention recently because of their unique structure and properties.In this review,the application of zero-dimensional(0D),one-dimensional(1D),and two-dimensional(2D)materials in ORR are discussed and particular attention is given to the relationship between their structure and the ORR activity.Graphene-based materials,transition metal dichalcogenides,transition metal oxide,nanotubes,nanoribbons,nanowires,and single-atom ORR catalysts are introduced and classified by their geometric dimension. | Xin Tong Xinxing Zhan Diane Rawach Zhangsen Chen Gaixia Zhang Shuhui Sun | 2020 | Progress in Natural Science:Materials International2020,30,6: | 2 |
| 11 | 显示文摘 | Feng Xinxing Zhang Lili Chen Jianyong | 2007 | International Journal of Biological Macromolecules2007,40,: | 1 |
| 12 | A novel process for preparing expanded Polytetrafluoroethylene(ePTFE) micro-porous membrane through ePTFE/ePTFE co-stretching technique显示文摘 | Yuhai Guo Jianyong Chen Xinmin Hao Jianchun Zhang Xinxing Feng Huapeng Zhang | 2007 | Journal of Materials Science2007,,6: | 1 |
| 13 | Estimation of the accumulation rates and health risks of heavy metals in residential soils of three metropolitan cities in China显示文摘Heavy metal concentrations in urban soils are likely to increase over time because of contin-uous urbanization and heavy metal emissions.To estimate the accumulation rates of heavy metals in urban soils,we collected soil samples from residential areas with different build-ing ages in the metropolitan cities of Shanghai,Shenzhen,and Beijing,China.Heavy metal concentrations in the soils varied among the cities and were primarily affected by soil parent material and the intensity of anthropogenic sources.Regression analyses revealed that the accumulation rates of Cd and Cu in the soils ranged from 0.0034 to 0.0039 mg/(kg·year)and 0.343 to 0.391 mg/(kg·year),respectively,and were similar across the three cities,while ac-cumulation rates of Zn and Pb in Shanghai were higher than those in Shenzhen and Beijing.The higher accumulation rates of Zn and Pb in Shanghai can be explained by differences in city history and industrial structures among the cities.Residential soils with high health risks posed by the heavy metals were mostly collected from old towns of Shanghai because of high Pb content in the areas.Although recent urbanization resulted in elevated concen-trations of Cd,Cu,Zn,and Pb in the residential soils,the effect on the total health risks of residents exposed to the soils was negligible. | Chi Peng Kai Zhang Meie Wang Xinxing Wan Weiping Chen | 2022 | Journal of Environmental Sciences2022,34,5: | 1 |
| 14 | Effect of Random Inclusion of Wheat Straw Fibers on Shear Strength Characteristics of Shanghai Cohesive Soil显示文摘 | Jili Qu Chencai Li Baoshi Liu Xinxing Chen Ming Li Zhaowei Yao | 2013 | Geotechnical and Geological Engineering2013,,2: | 1 |
| 15 | Flexible,anti-damage,and non-contact sensing electronic skin implanted with MWCNT to block public pathogens contact infection显示文摘If a person comes into contact with pathogens on public facilities,there is a threat of contact(skin/wound)infections.More urgently,there are also reports about COVID-19 coronavirus contact infection,which once again reminds that contact infection is a very easily overlooked disease exposure route.Herein,we propose an innovative implantation strategy to fabricate a multi-walled carbon nanotube/polyvinyl alcohol(MWCNT/PVA,MCP)interpenetrating interface to achieve flexibility,anti-damage,and non-contact sensing electronic skin(E-skin).Interestingly,the MCP E-skin had a fascinating non-contact sensing function,which can respond to the finger approaching 0−20 mm through the spatial weak field.This non-contact sensing can be applied urgently to human–machine interactions in public facilities to block pathogen.The scratches of the fruit knife did not damage the MCP E-skin,and can resist chemical corrosion after hydrophobic treatment.In addition,the MCP E-skin was developed to real-time monitor the respiratory and cough for exercise detection and disease diagnosis.Notably,the MCP E-skin has great potential for emergency applications in times of infectious disease pandemics. | Duan-Chao Wang Hou-Yong Yu Lurong Jiang Dongming Qi Xinxing Zhang Lumin Chen Wentao Lv Weiqiang Xu Kam Chiu Tam | 2022 | Nano Research2022,15,3: | 1 |
| 16 | Preparation and Characterization of novel nanocomposite films formed from silk fibroin and nano TiO2 显示文摘 | Feng Xinxing Zhang Lili Chen Jianyong | 2007 | International Journal of Biological Macromolecules2007,40,2: | 1 |
| 17 | miR?204-5p promotes the adipogenic differentiation of human adipose-derivedmesenchymal stem cells by modulating DVL3 expression and suppressing Wnt/β-cateninsignaling显示文摘 | Honghui He Ke Chen Fang Wang Liling Zhao Xinxing Wan Linghao Wang Zhaohui Mo | 2015 | International Journal of Molecular Medicine2015,,6: | 1 |
| 18 | Optimization of the forearm angle for arm wrestling using multi-camera stereo digital image correlation: A preliminary study显示文摘This study analyzes the function of different muscles during arm wrestling and proposes a method to analyze the optimal forearm angle for professional arm wrestlers.We built a professional arm-wrestling platform to measure the shape and deformation of the skin at the biceps brachii of a volunteer in vivo during arm wrestling.We observed the banding phenomenon of arm skin strain during muscle contraction and developed a model to evaluate the moment provided by the biceps brachii.According to this model,the strain field of the area of interest on the skin was measured,and the forearm angles most favorable and unfavorable to the work of the biceps brachii were analyzed.This study demonstrates the considerable potential of applying DIC and its extension method to the in vivo measurement of human skin and facilitates the use of the in vivo measurement of skin deformation in various sports in the future. | Zixiang Tong Xinxing Shao Zhenning Chen Xiaoyuan He | 2021 | Theoretical & Applied Mechanics Letters2021,11,6: | 1 |
| 19 | LAMC2 regulates proliferation, migration, and invasion mediated by the Pl3K/AKT/mTOR pathway in oral显示文摘Background:Oral squamous cell carcinoma(OSCC)is a common malignant tumor.Recently,Laminin Gamma 2(LAMC2)has been shown to be abnormally expressed in OSCC;however,how LAMC2 signaling contributes to the occurrence and development of OSCC and the role of autophagy in OSCC has not been fully explored.This study aimed to analyze the role and mechanism of LAMC2 signaling in OSCC and the involvement of autophagy in OSCC.Methods:To explore the mechanism by which LAMC2 is highly expressed in OSCC,we used small interfering RNA(siRNA)to knock down LAMC2 to further observe the changes in the signaling pathway.Furthermore,we used cell proliferation assays,Transwell invasion assays,and wound-healing assays to observe the changes in OSCC proliferation,invasion,and metastasis.RFP-LC3 was used to detect the level of autophagy intensity.A cell line-derived xenograft(CDX)model was used to detect the effect of LAMC2 on tumor growth in vivo.Results:This study found that the level of autophagy was correlated with the biological behavior of OSCC.The downregulation of LAMC2 activated autophagy and inhibited OSCC proliferation,invasion,and metastasis via inhibiting the PI3K/AKT/mTOR pathway.Moreover,autophagy has a dual effect on OSCC,and the synergistic downregulation of LAMC2 and autophagy can inhibit OSCC metastasis,invasion,and proliferation via the PI3K/AKT/mTOR pathway.Conclusions:LAMC2 interacts with autophagy to regulate OSCC metastasis,invasion,and proliferation via the PI3K/AKT/mTOR pathway.LAMC2 down-regulation can synergistically modulate autophagy to inhibit OSCC migration,invasion,and proliferation. | FAYU SHAN LANLAN LIANG CHONG FENG HONGBAO XU ZIROU WANG WEILI LIU LINGLING PU ZHAOLI CHEN GANG CHEN XINXING WANG | 2023 | Oncology Research2023,31,4: | 1 |
| 20 | Maintenance and Management Model for the Urban Stereo Landscape Forest in Chongqing Academy of Science and Technology显示文摘Based on landscaping practices in the stereo landscape demonstration project of Chongqing Academy of Science and Technology (CAST),current management and maintenance of the stereo landscapes were introduced by analyzing maintenance and management of the plants in the stereo landscape forest.The maintenance and management models were summarized according to the management styles,concrete measures and new technologies were studied,laws and key points for the maintenance and management in different seasons were given,and finally deficiencies and solutions were proposed to improve the future maintenance and management. | WANG Zhengchun CHEN Lina JIANG Haiyan HE Bangliang ZHOU Fei JIANG Xinxing CHEN Daojing YANG Bo | 2012 | Journal of Landscape Research2012,4,11: | 1 |