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| 1 | Recent advances in cell sheet technology for bone and cartilage regeneration: from preparation to application显示文摘Bone defects caused by trauma,tumour resection,infection and congenital deformities,together with articular cartilage defects and cartilage–subchondral bone complex defects caused by trauma and degenerative diseases,remain great challenges for clinicians.Novel strategies utilising cell sheet technology to enhance bone and cartilage regeneration are being developed.The cell sheet technology has shown great clinical potential in regenerative medicine due to its effective preservation of cell–cell connections and extracellular matrix and its scaffold-free nature.This review will first introduce several widely used cell sheet preparation systems,including traditional approaches and recent improvements,as well as their advantages and shortcomings.Recent advances in utilising cell sheet technology to regenerate bone or cartilage defects and bone–cartilage complex defects will be reviewed.The key challenges and future research directions for the application of cell sheet technology in bone and cartilage regeneration will also be discussed. | Yuezhi Lu Wenjie Zhang Jie Wang Guangzheng Yang Shi Yin Tingting Tang Chunhua Yu Xinquan Jiang | 2019 | International Journal of Oral Science2019，11，2： | 14 |
| 2 | Coordination of PSS and FACTS Damping Controllers to Improve Small Signal Stability of Large-scale Power Systems显示文摘This paper presents an approach for designing parameters of power system stabilizer(PSS)and FACTS damping controllers in a large scale practical power system.The objective is maximizing damping ratio of the target mode,and tracking technology(MTT)is used to avoid frequent alternations of target mode in optimization procedures.An improved planted growth simulation algorithm(IPGSA),which has high search efficiency and quick convergence speed,is proposed to optimize controller parameters coordinately.Based on case study of a large-scale power grid,and by using local and interregional low-frequency oscillation modes as target modes,simulation results verify proposed method in this paper.Furthermore,coordination optimization strategy adapted to multi-operating conditions demonstrates that the proposed approach is robust. | Guangzheng Yu Tao Lin Jiannan Zhang Ye Tian Xiu Yang | 2019 | CSEE Journal of Power and Energy Systems2019，5，4： | 2 |
| 3 | Realization of high performance for PM6:Y6 based organic photovoltaic cells显示文摘With advances in material science and a more in-depth understanding of device engineering,the power conversion efficiency(PCE)of solution-processed organic photovoltaic(OPV)cells have significantly boosted in the past few years.In 2019,a high PCE of 15.7%was achieved in the OPV cells adopting a wide bandgap polymer PM6 and a new emerging non-fullerene acceptor Y6.Such outstanding performance has attracted lots of research attention,driving considerable efforts to improve or take advantage of the high-performance PM6:Y6-based system.In this review,we first concentrate on the structural characteristics of PM6 and Y6 with the focus on understanding why their combination for OPV application can obtain such high efficiency.We also update the recent progress in highly efficient PM6:Y6-based OPV cells via various optimizing strategies.Then we summarize the other applications of the PM6:Y6-based system in semi-transparent,flexible or lay e-by-layer devices.The prospects for future OPV studies will be suggested in the end. | Runnan Yu Guangzheng Wu Zhan’ao Tan | 2021 | Journal of Energy Chemistry2021，30，10： | 2 |
| 4 | Analysis of the spatial discrimination threshold of head-related transfer function magnitude显示文摘A binaural-loudness-model-based method for evaluating the spatial discrimination threshold of magnitudes of head-related transfer function(HRTF) is proposed.As the input of the binaural loudness model,the HRTF magnitude variations caused by spatial position variations were firstly calculated from a high-resolution HRTF dataset.Then,three perceptualrelevant parameters,namely interaural loudness level difference,binaural loudness level spectra,and total binaural loudness level,were derived from the binaural loudness model.Finally,the spatial discrimination thresholds of HRTF magnitude were evaluated according to just-noticedifference of the above-mentioned perceptual-relevant parameters.A series of psychoacoustic experiments was also conducted to obtain the spatial discrimination threshold of HRTF magnitudes.Results indicate that the threshold derived from the proposed binaural-loudness-modelbased method is consistent with that obtained from the traditional psychoacoustic experiment,validating the effectiveness of the proposed method. | LIU Yu XIE Bosun YU Guangzheng RUI Yuanqing | 2016 | Chinese Journal of Acoustics2016，35，1： | 2 |
| 5 | A rapidly magnetically assembled stem cell microtissue with“hamburger”architecture and enhanced vascularization capacity显示文摘With the development of magnetic manipulation technology based on magnetic nanoparticles(MNPs),scaffold-free microtissues can be constructed utilizing the magnetic attraction of MNP-labeled cells.The rapid in vitro construction and in vivo vascularization of microtissues with complex hierarchical architectures are of great importance to the viability and function of stem cell microtissues.Endothelial cells are indispensable for the formation of blood vessels and can be used in the prevascularization of engineered tissue constructs.Herein,safe and rapid magnetic labeling of cells was achieved by incubation with MNPs for 1 h,and ultrathick scaffold-free microtissues with different sophisticated architectures were rapidly assembled,layer by layer,in 5 min intervals.The in vivo transplantation results showed that in a stem cell microtissue with trisection architecture,the two separated human umbilical vein endothelial cell(HUVEC)layers would spontaneously extend to the stem cell layers and connect with each other to form a spatial network of functional blood vessels,which anastomosed with the host vasculature.The“hamburger”architecture of stem cell microtissues with separated HUVEC layers could promote vascularization and stem cell survival.This study will contribute to the construction and application of structural and functional tissues or organs in the future. | Yuezhi Lu Chun-Hua Yu Guangzheng Yang Ningjia Sun Fei Jiang Mingliang Zhou Xiaolin Wu Jiaxin Luo Cui Huang Wenjie Zhang Xinquan Jiang | 2021 | Bioactive Materials2021，6，11： | 1 |
| 6 | Design and validation on a multiple sound source fast-measurement system of near-field head-related transfer functions显示文摘 | YU Guangzheng LIU Yu XIE Bosun | 2018 | Chinese Journal of Acoustics2018，37，2： | 1 |
| 7 | Experimental study on critical breaking stress of float glass under elevated temperature 显示文摘 | Wang Yu Wang Oingsong Shao Guangzheng | 2014 | Materials & Design2014，60，： | 1 |
| 8 | Fracture behavior of a four-point fixed glass curtain wall under fire conditions显示文摘 | Wang Yu Wang Qingsong Shao Guangzheng | 2014 | Fire Safety Journal2014，67，： | 1 |
| 9 | Layer-by-layered organic solar cells:Morphology optimizing strategies and processing techniques显示文摘The last decades have witnessed the rapid development and the gradually improved efficiencies of organic solar cells(OSCs),which show great potentials in the fabrication of eco-friendly and flexible photovoltaic panels.Layer-by-layered(LBL)structure via sequential processing of the donor and acceptor layers becomes an advisable option to construct pseudo-bilayer configurations in OSC active layer.Favorable vertical phase separation and sufficient exciton dissociation interfaces can be simultaneously realized in such aggregation morphology via different processing technologies and strategies.High efficiencies of over 18%in ternary LBL device and 11.9%in LBL-processed module(11.52 cm2)have been successfully achieved in recent works.Moreover,the unique merits of LBL structure in individual layer processing enable it a promising candidate for large-scale printing and further industrialization of OSCs.This perspective provides the recent advance of LBL OSCs with the focus on fabrication technologies and strategies for morphology control and also proposes the current thinking and perspective on LBL structures for future development. | Runnan Yu Xueqi Wei Guangzheng Wu Zhan’ao Tan | 2022 | Aggregate2022，3，3： | 0 |
| 10 | Multiple Scattering Between Adjacent Sound Sources in Head-Related Transfer Function Measurement System显示文摘To accelerate head-related transfer functions(HRTFs)measurement,two or more independent sound sources are usually employed in the measurement system.However,the multiple scattering between adjacent sound sources may influence the accuracy of measurement.On the other hand,the directivity of sound source could induce measurement error.Therefore,a model consisting of two spherical sound sources with approximate omni-directivity and a rigid-spherical head is proposed to evaluate the errors in HRTF measurement caused by multiple scattering between sources.An example of analysis using multipole re-expansion indicates that the error of ipsilateral HRTFs are within the bound of±1.0 dB below a frequency of 20 kHz,provided that the sound source radius does not exceed 0.025 m,the source distance relative to head center is not less than 0.5 m,and the angular interval between two adjacent sources is not less than 20 degrees.Similar conclusions under different conditions can also be analyzed and discussed by using this calculation method.Furthermore,the results are verified by measurements of HRTFs for a rigid sphere and a KEMAR artificial head. | Guangzheng Yu Yu Liu Bosun Xie Huali Zhou | 2019 | Sound & Vibration2019，53，4： | 0 |
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