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| 1 | Recent advances in active control of turbulent boundary layers显示文摘In this article,we review the recent progress in active control of a turbulent boundary layer for skin-friction drag reduction.Near-wall coherent structures,which are closely associated with large skin-friction drag and are thus often the target to be manipulated,are discussed briefly,providing a rationale of various control strategies.Open-and closed-loop controls are extensively reviewed,largely focusing on techniques and drag-reduction mechanisms.Finally,some concluding remarks are given. | ZHOU Yu BAI HongLei | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，7： | 3 |
| 2 | 3D bioprinting for cell culture and tissue fabrication显示文摘 | Honglei Jian Meiyue Wang Shengtao Wang Anhe Wang Shuo Bai | 2018 | Bio-Design and Manufacturing2018，1，1： | 3 |
| 3 | Response of turbulent fluctuations to the periodic perturbations in a flow over a backward facing step显示文摘The flow structures in a separated shear layer actuated by a synthetic jet actuator were studied using experimental methods. When forced at a frequency much lower than the natural shedding frequency(fH/U = 0.042 or fX_r/U = 0.24), the vertical flapping motion of the shear layer downstream of the separation point became prominent. The size of the peak in the pressure spectra at the forcing frequency(St_A= f_AH/U) measured near the separation point(x/H = 1) increased linearly with the forcing amplitude(u′/U) suggesting a linear response of the pressure fluctuations to the forcing by the synthetic jet.The linear response did not hold for the pressure fluctuations away from the jet exit as the magnitude of the peak for St_A measured at x/H = 3 soon saturated when the forcing amplitude became larger than 0.3. | Zhuoyue Li Honglei Bai Nan Gao | 2015 | Theoretical & Applied Mechanics Letters2015，5，5： | 2 |
| 4 | Drag of a D-shaped bluff body under small amplitude harmonic actuation显示文摘Open-loop flow control method was used to affect the development of a turbulent wake behind a D-shaped bluff body.Loud speakers were embedded inside the bluff body to produce two zero-net-massflux jets through 2 mm-wide span-wise slots located along the upper and lower edges on the rear wall.The drag forces for different actuation amplitudes(C_μ the ratio between the momentum of the actuating jets and the moment deficit caused by the bluff body) and frequencies(Sr_A) were examined.The effects of the phase difference in the two jets(0 and π) were also studied.It was found that when C_μ was 0.1%,a drag reduction up to 5%was achieved when the velocities of the two jets varied in phase at a frequency of St_A = 0.16.When the velocities of the two jets varied rr out of phase,significant drag increase was observed. | Yaqing Li Honglei Bai Nan Gao | 2015 | Theoretical & Applied Mechanics Letters2015，5，1： | 0 |
| 5 | Role of Thermolysin in Catalytic-Controlled Self-Assembly of Fmoc-Dipeptides显示文摘In recent years,short peptide self-assembled materials,prepared under the control of the thermolysin catalyst,have been investigated extensively and shown to acquire various morphologies and functions as building blocks for a wide range of biomaterials and device applications.However,the role played by thermolysin in this enzymatically triggered peptide self-assembly is still ambiguous.Herein,we designed a series of Fmoc-dipeptide amphiphiles to explore the catalytic role of thermolysin. | Meiyue Wang Qiansen Zhang Honglei Jian Shijie Liu Jieling Li Anhe Wang Qianqian Dong Peng Ren Xin Li Shuo Bai | 2020 | CCS Chemistry2020，2，4： | 0 |
| 6 | Advances in China Space Medical Experiment Research显示文摘In 2021,China Space Station(CSS)was assembled and constructed in-orbit,which provided a broad space platform for space medicine and space life sciences research.Space medicine focuses on the systematic risks that restrict long-term manned spaceflight.It carries out systematic research on the impact and countermeasure technology of long-term weightlessness on astronauts’health,space radiation on astronauts’health,behavior and ability,advanced on-orbit monitoring and medical disposal technology,and traditional space medical application technology by the space medicine experiment platform on human body and cell.It has accumulated valuable data on space environmental effects and human factors research,established a“human system risk”research system,obtained new knowledge and discoveries of space medicine,and explored countermeasure technologies of new characteristics.Moreover,a series of achievements have been made in the basic research on the mechanism of the special space environmental effect,which provides a solid foundation for the implementation of space missions. | CHEN Hailong LIU Zhaoxia WANG Lidong DING Bai SHI Liujia WANG Chunyan MI Tao YU Hongqiang ZHAO Rui WANG Honghui CHEN Chao QU Lina MA Honglei JIANG Changhua LI Yongzhi WEI Ming LI Zhili XU Chong ZANG Peng CAO Ping LI Yinghui | 2022 | 空间科学学报2022，42，4： | 0 |
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