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| 1 | Unequal-thickness billet optimization in transitional region during isothermal local loading forming of Ti-alloy rib-web component using response surface method显示文摘Avoiding the folding defect and improving the die filling capability in the transitional region are desired in isothermal local loading forming of a large-scale Ti-alloy rib-web component(LTRC). To achieve a high-precision LTRC, the folding evolution and die filling process in the transitional region were investigated by 3 D finite element simulation and experiment using an equal-thickness billet(ETB). It is found that the initial volume distribution in the second-loading region can greatly affect the amount of material transferred into the first-loading region during the second-loading step, and thus lead to the folding defect. Besides, an improper initial volume distribution results in non-concurrent die filling in the cavities of ribs after the second-loading step, and then causes die underfilling. To this end, an unequal-thickness billet(UTB) was employed with the initial volume distribution optimized by the response surface method(RSM). For a certain eigenstructure, the critical value of the percentage of transferred material determined by the ETB was taken as a constraint condition for avoiding the folding defect in the UTB optimization process,and the die underfilling rate was considered as the optimization objective. Then, based on the RSM models of the percentage of transferred material and the die underfilling rate, non-folding parameter combinations and optimum die filling were achieved. Lastly, an optimized UTB was obtained and verified by the simulation and experiment. | Ke WEI Mei ZHAN Xiaoguang FAN He YANG Pengfei GAO Miao MENG | 2018 | Chinese Journal of Aeronautics2018，31，4： | 13 |
| 2 | Design and test of tray-seedling sorting transplanter显示文摘In order to improve the automatic sorting and transplanting of tray-seedling and reduce labors strength,a new sorting transplanter was designed.According to the feature of normal seedling tray and manual grading method,the mechanical sorting procedure was defined.The key parts of sorting transplanter are as follows:an efficient transfer mechanism with aerodynamic buffer,a seedling identifying and measuring unit based on linear-structured vision,the extendible multi-grasper with wireless technology and the system controller.The experiments were conducted and showed that the transplanting success rate was 90.0% on the tray of 6×12 holes under the speed of 700 cycles per hour.The vision unit’s failed identifying rate for the superior pepper seedlings on five different trays was less than 10%,and the measurement error of seedling height was about 5 mm. | Feng Qingchun Zhao Chunjiang Jiang Kai Fan Pengfei Wang Xiu | 2015 | International Journal of Agricultural and Biological Engineering2015，8，2： | 12 |
| 3 | 17β-estradiol contributes to the accumulationof myeloid-derived suppressor cells in bloodby promoting TNF-αsecretion显示文摘雌激素被影响有免疫力的房间的发展和激活强烈在有免疫力的回答处于性差别含有。最近的研究显示出那导出 myeloid 的 suppressor 房间(MDSC ) ,源于 CD11b + 在病理学的条件下面的 Gr-1 + myeloid 房间,在 modulating 免疫者回答起重要作用。然而,它仍然是未知的 MDSC 上的雌激素的效果。在现在的学习,我们在调整 MDSC 的累积上调查了雌激素的效果和机制。与有全身的豺狼座 erythematosus (SLE ) 的男病人相比,有 SLE 的女病人在浆液在外部血 mononuclear 房间和肿瘤坏死因素(TNF-) 的高水平显示出 MDSC 的更高的频率,这被发现。尤其是,在有 SLE 的女病人的浆液的 estradiol 水平断然与 MDSC 的频率被相关。而且, 17-estradiol 能支持 TNF -- 在由增加 CD11b + Gr-1 + 房间。而且, 17-estradiol 在 vivo 支持了 TNF- 的分泌物,它贡献了 CD11b + Gr-1 + 房间。另外,雌老鼠显示出 CD11b + Gr-1 + 房间和更高的 TNF- 比匹配年龄的雄的老鼠在血铺平。这些数据显示 17-estradiol 由支持 TNF- 分泌物在血贡献 MDSC 的累积,它增加 CD11b + Gr-1 + 房间。我们的调查结果在发炎和自体免疫的疾病的流行提供新卓见进性差别的机制。 | Guanjun Dong Ming You Hongye Fan Jianjian Ji Liang Ding Pengfei Li Yayi Hou | 2015 | Acta Biochimica et Biophysica Sinica2015，47，8： | 11 |
| 4 | Exosome-functionalized polyetheretherketone-based implant with immunomodulatory property for enhancing osseointegration显示文摘The host immune response effecting on biomaterials is critical to determine implant fates and bone regeneration property.Bone marrow stem cells(BMSCs)derived exosomes(Exos)contain multiple biosignal molecules and have been demonstrated to exhibit immunomodulatory functions.Herein,we develop a BMSC-derived Exos-functionalized implant to accelerate bone integration by immunoregulation.BMSC-derived Exos were reversibly incorporated on tannic acid(TA)modified sulfonated polyetheretherketone(SPEEK)via the strong interaction of TA with biomacromolecules.The slowly released Exos from SPEEK can be phagocytosed by co-cultured cells,which could efficiently improve the biocompatibilities of SPEEK.In vitro results showed the Exos loaded SPEEK promoted macrophage M2 polarization via the NF-κB pathway to enhance BMSCs osteogenic differentiation.Further in vivo rat air-pouch model and rat femoral drilling model assessment of Exos loaded SPEEK revealed efficient macrophage M2 polarization,desirable new bone formation,and satisfactory osseointegration.Thus,BMSC-derived Exos-functionalized implant exerted osteoimmunomodulation effect to promote osteogenesis. | Lei Fan Pengfei Guan Cairong Xiao Huiquan Wen Qiyou Wang Can Liu Yian Luo Limin Ma Guoxin Tan Peng Yu Lei Zhou Chengyun Ning | 2021 | Bioactive Materials2021，6，9： | 11 |
| 5 | Design and test of robotic harvesting system for cherry tomato显示文摘Harvesting of fresh-eating cherry tomato was highly costly on labor and time.In order to achieve mechanical harvesting for the fresh-eating tomato,a new harvesting robot was designed,which consisted of a stereo visual unit,an end-effector,manipulator,a fruit collector,and a railed vehicle.The robot configuration and workflow design focused on the special cultivating condition.Three key parts were introduced in detail:a railroad vehicle capably moving on both ground and rail was adopted as the robot’s carrier,a visual servo unit was used to identify and locate the mature fruits bunch,and the end-effector to hold and separate the fruit bunch was designed based on the stalk’s mechanical features.The field test of the new developed robot was conducted and the results were analyzed.The successful harvest rate of the robot was 83%,however,each successful harvest averagely needed 1.4 times attempt,and a single successful harvesting cycle cost 8 s excluding the time cost on moving. | Qingchun Feng Wei Zou Pengfei Fan Chunfeng Zhang Xiu Wang | 2018 | International Journal of Agricultural and Biological Engineering2018，11，1： | 8 |
| 6 | Deep learning in optical metrology:a review显示文摘With the advances in scientific foundations and technological implementations,optical metrology has become versatile problem-solving backbones in manufacturing,fundamental research,and engineering applications,such as quality control,nondestructive testing,experimental mechanics,and biomedicine.In recent years,deep learning,a subfield of machine learning,is emerging as a powerful tool to address problems by learning from data,largely driven by the availability of massive datasets,enhanced computational power,fast data storage,and novel training algorithms for the deep neural network.It is currently promoting increased interests and gaining extensive attention for its utilization in the field of optical metrology.Unlike the traditional,,physics-basedH approach,deep-learning-enabled optical metrology is a kind of,/data-drivenw approach,which has already provided numerous alternative solutions to many challenging problems in this field with better performances.In this review,we present an overview of the current status and the latest progress of deep-learning technologies in the field of optical metrology.We first briefly introduce both traditional image-processing algorithms in optical metrology and the basic concepts of deep learning,followed by a comprehensive review of its applications in various optical metrology tasks,such as fringe denoising,phase retrieval,phase unwrapping,subset correlation,and error compensation.The open challenges faced by the current deep-learning approach in optical metrology are then discussed.Finally,the directions for future research are outlined. | Chao Zuo Jiaming Qian Shijie Feng Wei Yin Yixuan Li Pengfei Fan Jing Han Kemao Qian Qian Chen | 2022 | Light(Science & Applications)2022，11，4： | 7 |
| 7 | Drone-based entanglement distribution towards mobile quantum networks显示文摘Satellites have shown free-space quantum-communication ability;however,they are orbit-limited from full-time all-location coverage.Meanwhile,practical quantum networks require satellite constellations,which are complicated and expensive,whereas the airborne mobile quantum communication may be a practical alternative to offering full-time all-location multi-weather coverage in a cost-effective way.Here,we demonstrate the first mobile entanglement distribution based on drones,realizing multi-weather operation including daytime and rainy nights,with a Clauser-Horne-Shimony-Holt S-parameter measured to be 2.41±0.14 and 2.49±0.06,respectively.Such a system shows unparalleled mobility,flexibility and reconfigurability compared to the existing satellite and fiber-based quantum communication,and reveals its potential to establish a multinode quantum network,with a scalable design using symmetrical lens diameter and single-mode-fiber coupling.All key technologies have been developed to pack quantum nodes into lightweight mobile platforms for local-area coverage,and arouse further technical improvements to establish wide-area quantum networks with high-altitude mobile communication. | Hua-Ying Liu Xiao-Hui Tian Changsheng Gu Pengfei Fan Xin Ni Ran Yang Ji-Ning Zhang Mingzhe Hu Jian Guo Xun Cao Xiaopeng Hu Gang Zhao Yan-Qing Lu Yan-Xiao Gong Zhenda Xie Shi-Ning Zhu | 2020 | National Science Review2020，7，5： | 6 |
| 8 | Molecular phylogeny and divergence time of Trachypithecus: with implications for the taxonomy of T. phayrei显示文摘 | Kai HE Naiqing HU Joseph D.ORKIN Daw Thida NYEIN Chi MA Wen XIAO Pengfei FAN Xuelong JIANG | 2012 | Zoological Research2012，33，6： | 5 |
| 9 | Comparative study on corrosion resistance and lubrication function of lithium complex grease and polyurea grease显示文摘In this study,lithium complex grease(LCG)and polyurea grease(PUG)were synthesized using mineral oil(500 SN)and polyalphaolefin(PAO40)as base oil,adsorbed onto lithium complex soap and polyurea as thickeners,respectively.The effects of grease formulation(thickener and base oil with different amounts(80,85,and 90 wt%)on the corrosion resistance and lubrication function were investigated in detail.The results have verified that the as-prepared greases have good anti-corrosion ability,ascribed to good salt-spray resistance and sealing function.Furthermore,the increase in the amount of base oil reduces the friction of the contact interface to some extent,whereas the wear resistance of these greases is not consistent with the friction reduction,because the thickener has a significant influence on the tribological property of greases,especially load-carrying capacity.PUG displays better physicochemical performance and lubrication function than LCG under the same conditions,mainly depending on the component/structure of polyurea thickener.The polyurea grease with 90 wt%PAO displays the best wear resistance owing to the synergistic lubrication of grease-film and tribochemical film,composed of Fe_(2)O_(3),FeO(OH),and nitrogen oxide. | Guanlin REN Pengfei ZHANG Xiangyuan YE Wen LI Xiaoqiang FAN Minhao ZHU | 2021 | Friction2021，9，1： | 5 |
| 10 | Metastable amorphous chromium-vanadium oxide nanoparticles with superior performance as a new lithium battery cathode显示文摘钒氧化物的主要缺点作为阴极材料是它的低传导性,低实际能力和差的骑车稳定性。补充说 Cr 能改进它的传导性和一个亚稳的非结晶的状态可以提供更高的能力和稳定性。在这个工作,亚稳的非结晶的 Cr-V-O nanoparticles 成功地通过反应由退火跟随了的灵巧的一起沉淀被准备了处理。作为为锂电池的阴极材料,亚稳的非结晶的 Cr-V-O nanoparticles 展览高度能力(在在 1.54 V 之间的 100 mA/g 的 260 mAh/g ) ,低能力损失(超过 80% 在 100 mA/g 在 200 个周期以后被保留) 并且高率能力(多达 3 A/g ) 。 | Jinzhi Sheng Qidong Li Qiulong Wei Pengfei Zhang Qinqin Wang Fan Lv Qinyou An Wei Chen Liqiang Mai | 2014 | Nano Research2014，7，11： | 5 |
| 11 | Robust adaptive control of hypersonic vehicle considering inlet unstart显示文摘In this paper,a model reference adaptive control(MRAC)augmentation method of a linear controller is proposed for air-breathing hypersonic vehicle(AHV)during inlet unstart.With the development of hypersonic flight technology,hypersonic vehicles have been gradually moving to the stage of weaponization.During the maneuvers,changes of attitude,Mach number and the back pressure can cause the inlet unstart phenomenon of scramjet.Inlet unstart causes significant changes in the aerodynamics of AHV,which may lead to deterioration of the tracking performance or instability of the control system.Therefore,we firstly establish the model of hypersonic vehicle considering inlet unstart,in which the changes of aerodynamics caused by inlet unstart is described as nonlinear uncertainty.Then,an MRAC augmentation method of a linear controller is proposed and the radial basis function(RBF)neural network is used to schedule the adaptive parameters of MRAC.Furthermore,the Lyapunov function is constructed to prove the stability of the proposed method.Finally,numerical simulations show that compared with the linear control method,the proposed method can stabilize the attitude of the hypersonic vehicle more quickly after the inlet unstart,which provides favorable conditions for inlet restart,thus verifying the effectiveness of the augmentation method proposed in the paper. | WANG Fan FAN Pengfei FAN Yonghua XU Bin YAN Jie | 2022 | Journal of Systems Engineering and Electronics2022，33，1： | 4 |
| 12 | Rapid on-line non-destructive detection of the moisture content of corn ear by bioelectrical impedance spectroscopy显示文摘Moisture content of corn directly affects its quality and storage time,and the rapid on-line detection of the moisture content of corn ears not threshed or in vivo in the fields is required.Because of the special shape of corn ear,the rapid,low cost and non-destructive bioelectrical impedance measurement is more suitable for its moisture content detection.Using the four-electrode method with the Agilent E4980A precision LCR meter,the electrical impedance spectroscopies of the sweet corn ears and waxy corn ears at different moisture contents were acquired.The frequency range of the detection was from 20 Hz to 2 MHz and to enhance the contact,the attached-type electrodes were wrapped in cotton soaked with 0.1%NaCl solution.The impedance data over the frequency range from 300 Hz to 5 kHz were used to obtain the parameters of the bio-impedance Cole-Cole model.The results showed a good linear correlation(coefficient of determination R2=0.960)between the equivalent parallel resistance R∞of sweet corn ear and the moisture content value determined by standard chemical method.The research proved that the bioelectrical impedance spectroscopy can be used for detecting the moisture content of corn ear. | Zhao Pengfei Zhang Hanlin Zhao Dongjie Wang Zhijie Fan Lifeng Huang Lan Ma Qin Wang Zhongyi | 2015 | International Journal of Agricultural and Biological Engineering2015，8，6： | 3 |
| 13 | Out-of-time-order correlation for many-body localization显示文摘In this paper we first compute the out-of-time-order correlators(OTOC) for both a phenomenological model and a random-field XXZ model in the many-body localized phase. We show that the OTOC decreases in power law in a many-body localized system at the scrambling time. We also find that the OTOC can also be used to distinguish a many-body localized phase from an Anderson localized phase,while a normal correlator cannot. Furthermore, we prove an exact theorem that relates the growth of the second Rényi entropy in the quench dynamics to the decay of the OTOC in equilibrium. This theorem works for a generic quantum system. We discuss various implications of this theorem. | Ruihua Fan Pengfei Zhang Huitao Shen Hui Zhai | 2017 | Science Bulletin2017，62，10： | 3 |
| 14 | Exosome-loaded extracellular matrix-mimic hydrogel with anti-inflammatory property Facilitates/promotes growth plate injury repair显示文摘Growth plate cartilage has limited self-repair ability,leading to poor bone bridge formation post-injury and ultimately limb growth defects in children.The current corrective surgeries are highly invasive,and outcomes can be unpredictable.Following growth plate injury,the direct loss of extracellular matrix(ECM)coupled with further ECM depletion due to the inhibitory effects of inflammation on the cartilage matrix protein greatly hinder chondrocyte regeneration.We designed an exosome(Exo)derived from bone marrow mesenchymal stem cells(BMSCs)loaded ECM-mimic hydrogel to promote cartilage repair by directly supplementing ECM and anti-inflammatory properties.Aldehyde-functionalized chondroitin sulfate(OCS)was introduced into gelatin methacryloyl(GM)to form GMOCS hydrogel.Our results uncovered that GMOCS hydrogel could significantly promote the synthesis of ECM due to the doping of OCS.In addition,the GMOCS-Exos hydrogel could further promote the anabolism of chondrocytes by inhibiting inflammation and ultimately promote growth plate injury repair through ECM remodeling. | Pengfei Guan Can Liu Denghui Xie Shichao Mao Yuelun Ji Yongchang Lin Zheng Chen Qiyou Wang Lei Fan Yongjian Sun | 2022 | Bioactive Materials2022，7，4： | 3 |
| 15 | The mechanism of flow softening in subtransus hot working of two-phase titanium alloy with equiaxed structure显示文摘Understanding the mechanism of high temperature deformation is important for controlling the forming quality of the titanium alloy forgings.In the present work,the flow softening mechanism in subtransus deformation of titanium alloys with equiaxed structure was investigated by interrupted isothermal compression tests.The results show that limited strain hardening followed by continuous flow softening occurs in high temperature deformation of a twophase TA15 titanium alloy.The flow softening can not be rationalized by dynamic recrystallization.Instead,the increase of mobile dislocations during deformation is an important reason for flow softening.The grain boundaries(including the a-b interfaces)act as an important source for the generation of mobile dislocations.The continuous flow softening results from the significant deformation heterogeneity in subtransus working. | Xiaoguang Fan He Yang Pengfei Gao | 2014 | Chinese Science Bulletin2014，59，23： | 3 |
| 16 | Recover the abnormal positioning,velocity and timing services caused by BDS satellite orbital maneuvers显示文摘The BeiDou Navigation Satellite System(BDS)provides global Positioning,Velocity,And Timing(PVT)services that are widely used in various areas.The BDS satellites frequently need the orbit maneuvers due to various perturbations to keep satellites in their designed positions.During these maneuvers,PVT services may be abnormal if the data from a maneuvering satellite is used.In this paper we developed an approach to recover the abnormal PVT services.By using BDS observations from multiple tracking stations,the orbital errors of a maneuvering satellite can be in real time obtained and corrected,thereby avoiding any influence on the performance of PVT services.The tests show that the average precision of position,velocity and timing services are improved by 0.8 m,0.1 mm/s and 0.16 ns,respectively,using the developed orbital maneuver recovery approach.In addition,the approach can also be used for the orbital maneuver detection and monitoring. | Rui Tu Rui Zhang Pengfei Zhang Junqiang Han Lihong Fan Xiaochun Lu | 2021 | Satellite Navigation2021，2，1： | 3 |
| 17 | Contamination, chemical speciation and vertical distribution of heavy metals in soils of an old and large industrial zone in Northeast China显示文摘 | Fayun Li Zhiping Fan Pengfei Xiao Kokyo Oh Xiping Ma Wei Hou | 2009 | Environmental Geology2009，，8： | 2 |
| 18 | Vapor phase fabrication of three-dimensional arrayed BiI3 nanosheets for cost-effective solar cells显示文摘Multilayered photovoltaic absorbers have triggered widespread attention for their unique structure and properties.However,multilayered materials in the randomly oriented polycrystalline thin-film lead to ineffective carrier transport and collection,which hinders the process of achieving high-performance solar cells.Herein,this issue is tackled by producing the three-dimensional(3D)heterojunction BiI3 nanosheets(NSs)solar cells,which embed vertically aligned monocrystalline BiI3 NSs into spiro-OMeTAD.The preferred orientation of BiI3 NSs and large p-n junction areas of 3D heterojunction structure enable a strong light absorption and effective carrier transport and collection,and thus a power conversion efficiency(PCE)of 1.45%was achieved.Moreover,this PCE is the highest ever reported for BiI3 based solar cells to our best knowledge.Moreover,the nonencapsulated device remained 96%of the initial PCE after 24 h continuous one sun illumination at^70%humidity condition,and 82%of the initial PCE after 1-month storage at^30%humidity condition. | Yiyi Zhu Qianpeng Zhang Matthew Kam Swapnadeep Poddar Leilei Gu Shijun Liang Pengfei Qi Feng Miao Zhiyong Fan | 2020 | InfoMat2020，2，5： | 2 |
| 19 | Blue-detuned optical atom trapping in a compact plasmonic structure显示文摘We theoretically propose blue-detuned optical trapping for neutral atoms via strong near-field interfacing in a plasmonic nanohole array. The optical field at resonance forms a nanoscale-trap potential with an FWHM of 200 nm and about ~370 nm away from the nanohole; thus, a stable 3 D atom trapping independent of the surface potential is demonstrated. The effective trap depth is more than 1 m K when the optical power of trapping light is only about 0.5 m W, while the atom scattering rate is merely about 3.31 s^(-1), and the trap lifetime is about 800 s.This compact plasmonic structure provides high uniformity of trap depths and a two-layer array of atom nanotraps, which should have important applications in the manipulation of cold atoms and collective resonance fluorescence. | ZHAO CHEN FAN ZHANG QI ZHANG JUANJUAN REN HE HAO XUEKE DUAN PENGFEI ZHANG TIANCAI ZHANG YING GU QIHUANG GONG | 2017 | Photonics Research2017，5，5： | 2 |
| 20 | Exome sequencing reveals genetic architecture in patients with isolated or syndromic short stature显示文摘Short stature is among the most common endocrinological disease phenotypes of childhood and may occur as an isolated finding or in conjunction with other clinical manifestations.Although the diagnostic utility of clinical genetic testing in short stature has been implicated,the genetic architecture and the utility of genomic studies such as exome sequencing(ES)in a sizable cohort of patients with short stature have not been investigated systematically.In this study,we recruited 561 individuals with short stature from two centers in China during a 4-year period.We performed ES for all patients and available parents.All patients were retrospectively divided into two groups:an isolated short stature group(group I,n=257)and an apparently syndromic short stature group(group II,n=304).Causal variants were identified in 135 of 561(24.1%)patients.In group I,29 of 257(11.3%)of the patients were solved by variants in 24 genes.In group II,106 of 304(34.9%)patients were solved by variants in 57 genes.Genes involved in fundamental cellularprocess played an important role in the genetic architecture of syndromic short stature.Distinct genetic architectures and pathophysiological processes underlie isolated and syndromic short stature. | Xin Fan Sen Zhao Chenxi Yu Di Wu Zihui Yan Lijun Fan Yanning Song Yi Wang Chuan Li Yue Ming Baoheng Gui Yuchen Niu Xiaoxin Li Xinzhuang Yang Shiyu Luo Qiang Zhang Xiuli Zhao Hui Pan Mei Li Weibo Xia Guixing Qiu Pengfei Liu Shuyang Zhang Jianguo Zhang Zhihong Wu James R.Lupski Jennifer E.Posey Shaoke Chen Chunxiu Gong Nan Wu | 2021 | Journal of Genetics and Genomics2021，48，5： | 2 |
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