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| 1 | Dynamics of unstable continental subduction:Insights from numerical modeling显示文摘Numerical experiments are used in this study to systematically investigate the effects of convergence rate,crustal rheological strength,and lithospheric thermal structure on the dynamics of continental collision.The study focuses on the types,conditions and processes of unstable continental subduction.Modelling results suggest that the development of unstable continental subduction can be promoted by conditions that tend to decrease rheological strength of the lithosphere,such as low crustal rheological strength,'hot'thermal structure of the lithosphere,or low convergence rate.Unstable subduction mode can be further categorized into three types:(1)multi-stage slab breakoff,(2)continuously'flowing'of fluid-like slab into the upper mantle,and(3)large-scale detachment of the thickened orogenic root.These three types of unstable continental subduction are respectively associated with(1)a low convergence rate,(2)'hot'thermal structure of the lithosphere with a high convergence rate,and(3)moderate-high crustal rheological strength with a low convergence rate.It is also revealed that the evolution of crustal melting is dominated by the deformation pattern of continental collision,which is mainly controlled by crustal rheological strength.The modelling results have important implications for understanding of continental subduction mode selection under specific geodynamic conditions. | HUANGFU PengPeng WANG YueJun FAN WeiMing LI ZhongHai ZHOU YongZhi | 2017 | Science China Earth Sciences2017，60，2： | 3 |
| 2 | High-performance fiber-integrated multifunctional graphene-optoelectronic device with photoelectric detection and optic-phase modulation显示文摘In graphene-based optoelectronic devices,the ultraweak interaction between a light and monolayer graphene leads to low optical absorption and low responsivity for the photodetectors and relative high half-wave voltage for the phase modulator.Here,an integration of the monolayer graphene onto the side-polished optical fiber is demonstrated,which is capable of providing a cost-effective strategy to enhance the light–graphene interaction,allowing us to obtain a highly efficient optical absorption in graphene and achieve multifunctions:photodetection and optical phase modulation.As a photodetector,the device has ultrahigh responsivity(1.5×10^(7) A/W)and high external quantum efficiency(>1.2×10^(9)%).Additionally,the polybutadiene/polymethyl methacrylate(PMMA)film on the graphene can render the device an optical phase modulator through the large thermo-optic effect of the PMMA.As a phase modulator,the device has a relatively low half-wave voltage of 3 V with a 16 dB extinction ratio in Mach–Zehnder interferometer configuration. | LINQING ZHUO PENGPENG FAN SHUANG ZHANG YUANSONG ZHAN YANMEI LINYU ZHANG DONGQUAN LI ZHEN CHE WENGUO ZHU HUADAN ZHENG JIEYUAN TANG JUN ZHANG YONGCHUN ZHONG WENXIAO FANG GUOGUANG LU JIANHUI YU ZHE CHEN | 2020 | Photonics Research2020，8，12： | 3 |
| 3 | Hepatitis B virus-associated follicular lymphoma presents T-cell inflamed phenotype and response to lenalidomide显示文摘Dear Editor,Follicular lymphoma(FL)represents the most common subtype of indolent non-Hodgkin's lymphoma(NHL)with distinct pathological,cytogenetic,and molecular features,accounting for 9.7%of NHLs in China[1].FL maintains a differentiation stage similar to germinal center(GC)B cells and is divided into grades 1,2,3A,and 3B[2].Up to 90%of FLs harbor the t(14;18)(q32;q21)/BCL2 apoptosis regula-tor(BCL2)-immunoglobulin heavy locus(IGH)transloca-tion and epigenetic modifier mutations,particularly lysine methyltransferase 2D(KMT2D)and CREB-binding pro-tein(CREBBP)[2]. | Nan Wang Wei Qin Zhong Zheng Ming Zhao Jie Xiong Hai Fang Rui Sun Yichao Wang Chen Li Lei DongXiaojian Sun Li Wang Pengpeng Xu Shu Cheng Haimin Xu Fan Zhang Weili Zhao | 2022 | Cancer Communications2022，42，2： | 2 |
| 4 | Self-organization of unimolecular micelles in beam stream for functional mesoporous metal oxide nanofibers显示文摘The use of linear amphiphilic block copolymers as templates is an important method for the preparation of mesoporous materials.However,the obtained assemblies are usually sensitive to synthetic conditions,which impedes the preparation of such mesoporous materials in certain environments.Herein,we report a universal strategy applying an amphiphilic multiarm triblock copolymer in the preparation of mesoporous metal oxide nanofibers(NFs)using one metal oxide(TiO_(2),ZrO_(2),WO_(3),CeO_(2)),or two(TiO_(2)/WO 3,TiO_(2)/ZrO_(2),TiO_(2)/CeO_(2))and three(TiO_(2)/WO_(3)/CuO)metal oxides as composites.The template consists of modified β-cyclodextrin as the center of the macromolecule which is attached sequentially to a block of polystyrene,poly(acrylic acid),and poly(ethylene oxide).Under electrospinning conditions,stable unimolecular micelles are formed and effectively co-assemble with metal ions to form fibrous nanostructures.As indicated by various characterization methods,the synthesized TiO_(2) and its derived composite NFs maintain a straight and continuous fibrous structure after calcination,and TiO_(2) NFs exhibit uniform mesopores of 10.8 nm in diameter and a large Brunauer-Emmett-Teller surface area of 143.3 m^(2)g^(−1).Benefiting from the characteristic structure,still present after modification,Pt-decorated mesoporous TiO_(2) NFs display excellent ability in the visible-light photocatalytic degradation of tetracycline,which is superior to the commercial P25 catalyst.This study reveals a promising strategy for the preparation of fibrous mesoporous metal oxides. | Chongfei Gu Xiaoshan Fan Guihua Zhu Yuchi Fan Haifeng Wang Tao Zhao Qi Xiao Yuan Fang Xiaopeng Li Wan Jiang Lianjun Wang Pengpeng Qiu Wei Luo | 2022 | Fundamental Research2022，2，5： | 1 |
| 5 | Distance-controllable and direction-steerable opto-conveyor for targeting delivery显示文摘Opto-conveyors have attracted widespread interest in various fields because of their non-invasive and non-contact delivery of micro/nanoparticles.However,the flexible control of the delivery distance and the dynamic steering of the delivery direction,although very desirable in all-optical manipulation,have not yet been achieved by optoconveyors.Here,using a simple and cost-effective scheme of an elliptically focused laser beam obliquely irradiated on a substrate,a direction-steerable and distance-controllable opto-conveyor for the targeting delivery of microparticles is implemented.Theoretically,in the proposed scheme of the opto-conveyor,the transverse and longitudinal resultant forces of the optical gradient force and the optical scattering force result in the transverse confinement and the longitudinal transportation of microparticles,respectively.In this study,it is experimentally shown that the proposed opto-conveyor is capable of realizing the targeting delivery for microparticles.Additionally,the delivery distance of microparticles can be flexibly and precisely controlled by simply adjusting the irradiation time.By simply rotating the cylindrical lens,the proposed opto-conveyor is capable of steering the delivery direction flexibly within a large range of azimuthal angles,from-75°to 75°.This study also successfully demonstrated the real-time dynamic steering of the delivery direction from-45°to 45°with the dynamical rotation of the cylindrical lens.Owing to its simplicity,flexibility,and controllability,the proposed method is capable of creating new opportunities in bioassays as well as in drug delivery. | Zhen Che Wenguo Zhu Yaoming Huang Yu Zhang Linqing Zhuo Pengpeng Fan Zhibin Li Huadan Zheng Wenjin Long Wentao Qiu Yunhan Luo Jun Zhang Jinghua Ge Jianhui Yu Zhe Chen | 2020 | Photonics Research2020，8，7： | 1 |
| 6 | Effects of Crustal Eclogitization on Plate Subduction/Collision Dynamics: Implications for India-Asia Collision显示文摘2D thermo-mechanical models are constructed to investigate the effects of oceanic and continental crustal eclogitization on plate dynamics at three successive stages of oceanic subduction, slab breakoff, and continental subduction. Crustal eclogitization directly increases the average slab density and accordingly the slab pull force, which makes the slab subduct deeply and steeply. Numerical results demonstrate that the duration time from initial continental collision to slab breakoff largely depends on the slab pull force. Specifically, eclogitization of subducted crust can greatly decrease the duration time, but increase the breakoff depth. The detachment of oceanic slab from the pro-continental lithosphere is accompanied with obvious exhumation of the subducted continental crust and a sharp uplift of the collision zone in response to the disappearance of downward drag force and the induced asthenospheric upwelling, especially under the condition of no or incomplete crustal eclogitization. During continental subduction, the slab dip angle is strongly correlated with eclogitization of subducted continental lower crust, which regulates the slab buoyancy nature. Our model results can provide several important implications for the Himalayan-Tibetan collision zone. For example, it is possible that the lateral variations in the degree of eclogitization of the subducted Indian crust might to some extent contribute to the lateral variations of subduction angle along the Himalayan orogenic belt. Moreover, the accumulation of highly radiogenic sediments and upper continental crustal materials at the active margin in combination with the strong shear heating due to continuous continental subduction together cause rising of isotherms in the accretionary wedge, which facilitate the development of crustal partial melting and metamorphism. | Pengpeng Huangfu Yuejun Wang Zhonghai Li Weiming Fan Yan Zhang | 2016 | Journal of Earth Science2016，27，5： | 1 |
| 7 | A confined micro-reactor with a movable Fe_(3) O_(4) core and a mesoporous TiO_(2) shell for a photocatalytic Fenton-like degradation of bisphenol A显示文摘Photocatalysis and Fenton process are two primary and promising advanced oxidation processes to degrade organic pollutants.However,the practical applications of single photocatalysis and Fenton process are still limited.Introducing one of them into another to form a combined photocatalytic Fentonlike system has shown great potential but still faces challenges in designing a well-tailored catalyst.Herein,a confined photocatalytic Fenton-like micro-reactor catalyst with a movable Fe_(3) O_(4) core and a mesoporous TiO_(2) shell has been constructed via a successive Stober coating strategy,followed by an ultrasound assisted etching method.The resulting micro-reactor possesses well-defined yolk-shell structures with unifo rm mesopores(~4 nm),a large Brunauer-Emmett-Teller(BET) surface area(~166.7 m^(2)/g),a high pore volume(~0.56 cm^(3)/g) and a strong magnetization(~51 emu/g),as well as tunable reactor sizes(20-90 nm).When evaluated for degrading bisphenol A under solar light in the presence of peroxymo no sulfate,the micro-reactor exhibits a superior catalytic degradation perfo rmance with a high magnetic separation efficiency and an excellent recycle ability.The outstanding performance can be attributed to its unique textual structure,which leads to a great syne rgistic effect from the photocatalytic and Fenton-like process.This study gives an important insight into the design and synthesis of an advanced micro-reactor for a combined advanced oxidation processes(AOPs). | Pengpeng Qiu Tao Zhao Xiaohang Zhu Binota Thokchom Jianping Yang Wan Jiang Lianjun Wang Yuchi Fan Xiaopeng Li Wei Luo | 2021 | Chinese Chemical Letters2021，32，4： | 1 |
| 8 | Effect of high stirring speed on the agglomerate behaviors for cohesive SiO_(2) powders in gas fluidization显示文摘The effects of superficial gas velocity and mechanical stirring speed on the precise regulation of flow regimes for cohesive SiO2 powders(mean diameter is 16μm)were experimentally investigated in a stirring-assisted fluidized bed.The results showed that compared with the agglomerates formed in the non-assisted fluidization of cohesive SiO2 powders,the introduction of mechanical stirring could effectively reduce the size of agglomerates and well disperse the agglomerates during fluidization.The best regulation range of agglomerate particulate fluidization can be achieved at 600 rpm when agglomerate sizes were reduced to below 200μm.Further investigation based on the operational phase diagram revealed that transformations of flow regimes were dominated by both stirring speed and gas velocity.The stirring applied enlarges the operational range of agglomerate particulate fluidization(APF)with a delayed onset of bubbling for cohesive particles.However,the exorbitant speed increases the collision velocity and contact area between small agglomerates,which results in the formation of unstable agglomerates and the whirlpool of powder. | Fan Liu Zhan Du Qingshan Zhu Xiaojun Guo Hebang Shi Pengpeng Lv Hongzhong Li | 2023 | Particuology2023，，9： | 0 |
| 9 | Machine Learning based Optical Proximity Correction Techniques显示文摘The shrinking of the size of the advanced technological nodes brings up new challenges to the semiconductor manufacturing community.The optical proximity correction(OPC)is invented to reduce the errors of the lithographic process.The conventional OPC techniques rely on the empirical models and optimization methods of iterative type.Both the accuracy and computing speed of the existing OPC techniques need to be improved to fulfill the stringent requirement of the research and design for latest technological nodes.The emergence of machine learning technologies inspires novel OPC algorithms.More accurate forward simulation of the lithographic process and single turn optimization methods are enabled by the machine learning based OPC techniques.We discuss the latest progress made by the OPC community in the process simulation and optimization based on machine learning techniques. | Pengpeng Yuan Taian Fan Yaobin Feng Peng Xu Yayi Wei | 2020 | Journal of Microelectronic Manufacturing2020，3，4： | 0 |
| 10 | New insight into scale inhibition during tea brewing: Ca^(2+)/Mg^(2+) complexing and alkalinity consumption显示文摘Scale not only affects the taste and color ofwater,but also increases the risks of osteoporosis and cardiovascular diseases associated with drinking it.As a popular beverage,tea is rich many substances that have considerable potential for scale inhibition,including protein,tea polyphenols and organic acids.In this study,the effect of tea brewing on scale formationwas explored.It was found that the proteins,catechins and organic acids in tea leaves could be released when the green tea was brewed in water with sufficient hardness and alkalinity.The tea-released protein was able to provide carboxyl groups to chelate with calcium ions(Ca^(2+)),preventing the Ca^(2+)from reacting with the carbonate ions(CO_(3)^(2-)).The B rings of catechins were another important structure in the complexation of Ca^(2+)and magnesium ions(Mg2+).The carboxyl and hydroxyl groups on the organic acids was able to form fivemembered chelating rings with Ca^(2+)and Mg^(2+),resulting in a significant decrease in Ca^(2+)from 100.0 to 60.0 mg/L.Additionally,the hydrogen ions(H^(+))provided by the organic acids consumed and decreased the alkalinity of the water from 250.0 to 131.4 mg/L,leading to a remarkable reduction in pH from 8.93 to 7.73.It further prevented the bicarbonate(HCO_(3)^(-))from producing CO_(3)^(2−)when the water was heated.The reaction of the tea constituents with the hardness and alkalinity inhibited the formation of scale,leading to a significant decrease in turbidity from 10.6 to 1.4 NTU.Overall,this study provides information to help build towards an understanding of the scale inhibition properties of tea and the prospects of tea for anti-scaling in industrial applications. | Linjun Li Jinsuo Lu Heliang Pang Zhiqiang Zhang Jing Yang Pengpeng Li Xiaoyu Yan Miaomiao Fan | 2023 | Journal of Environmental Sciences2023，，2： | 0 |
| 11 | Pecan kinome:classification and expression analysis of all protein kinases in Carya illinoinensis显示文摘Protein kinases(PKs)are involved in plant growth and stress responses,and constitute one of the largest superfamilies due to numerous gene duplications.However,limited PKs have been functionally described in pecan,an economically important nut tree.Here,the comprehensive identification,annotation and classification of the entire pecan kinome are reported.A total of 967 PK genes were identified from the pecan genome,and further classified into 20 different groups and 121 subfamilies using the kinase domain sequences,which were verified by phylogenetic analysis.The receptor-like kinase(RLK)group contained 565 members,which constituted the largest group.Gene duplication contributed to the expansion of pecan kinome,169 segmental duplication events including 285 PK genes were found,and the Ka/Ks ratio revealed they experienced strong negative selection.The RNA-Seq data of PK genes in pecan were further analyzed at the subfamily level,and different PK subfamilies performed various expression patterns across pecan embryo development or drought treatment,suggesting PK genes in pecan are involved in embryo development and drought stress response.Taken together,this study provides insight into the classification,expansion,evolution,and expression of pecan PKs.Our findings regarding expansion,expression and co-expression analyses lay a good foundation for future research to understand the roles of pecan PKs,and more efficiently determine the key candidate genes. | Kaikai Zhu Pinghua Fan Hui Liu Juan Zhao Pengpeng Tan Zhenghai Mo Fangren Peng | 2021 | Forestry Research2021，1，1： | 0 |
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