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THE GLOBAL EXISTENCE OF STRONG SOLUTIONS TO THE 3D COMPRESSIBLE ISOTHERMAL NAVIER-STOKES EQUATIONS

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Acta Mathematica Scientia 2022年第1期42卷 233-246页

作者： haibo yu School of Mathematical Sciences Huaqiao UniversityQuanzhou 362021China

This paper concerns the global existence of strong solutions to the 3 D compressible isothermal Navier-Stokes equations with a vacuum at *** on the special structure of the Zlotnik inequality,the time uniform upper bounds for density are established through some time-dependant a priori estimates under the assumption that the total mass is suitably small.

关键词： global strong solution compressible isothermal Navier-Stokes equations vacuum

MODULATION OF FRET THROUGH THE SPECTRAL-OVERLAP STRATEGY

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Journal of Innovative Optical Health Sciences 2012年第3期5卷 15-20页

作者： haibo yu YI XIAO State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 P.R.China

Fluorescence resonance energy transfer(FRET)is an important photophysical mechanism whichfinds many applications in biophotonics,particularly in biological sensing and *** is well known,there are two major factors that determine the efficiency of *** is the distance between the donor and the acceptor,and the other is the overlap of the donor's emission and the acceptor's absorption ***,while the distance-modulation of FRET is very popular,the spectral-overlap-modulation draws much less *** this talk,I would like to illustrate the importance of the strategy of *** presentation will include our works on the construction of highly efficient FRET systems featuring the short and rigid linker between the donor and acceptor moieties,and several typical examples of spectral-overlap-modulation strategy applied in the development of ratiometric sensors.

关键词： FRET spectral overlap ratiometric sensors

Combined treatment using acupuncture and music therapy on children with cerebral palsy Gross motor function measure comparison in 60 cases

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Neural Regeneration Research 2008年第6期3卷 694-696页

作者： Lixiong Wu haibo yu Yongfeng Liu Department of Acupuncture and Moxibustion Shenzhen Hospital of Traditional Chinese Medicine Shenzhen 518000 Guangdong Province China College of Acupuncture and Massage Guangzhou University of Traditional Chinese Medicine Guangzhou China

BACKGROUND： The use of acupuncture has received recognition to effectively treat cerebral palsy. Moreover, music therapy can be used to modify treatment of cerebral palsy. OBJECTIVE： To study the effects of combined treatment using acupuncture and music therapy on gross motor function measure （GMFM） of children with cerebral palsy, compared with acupuncture treatment alone. DESIGN, TIME AND SETTING： Randomized, controlled, clinical study. The experiment was conducted in Shenzhen Hospital of Traditional Chinese Medicine between January 2007 and September 2007. PARTICIPANTS： All children with cerebral palsy in the trial were from the outpatient department of Shenzhen Hospital of Traditional Chinese Medicine. The children were randomly divided into two groups： 30 children in Group B received acupuncture and music therapy, while 30 children in Group A received only acupuncture therapy. METHODS： Subjects in Groups A and B received acupuncture based on syndrome differentiation. The main acupoints were necessary for all participants. At first, flash needling was applied to the acupoints. For the remaining acupoints, the technique of transverse needling was applied to the head acupoints, and perpendicular needling was used for the other points. The inserted needles were twirled and then maintained for 30 minutes. The needle was twirled for one second every other 10 minutes, without reinforcing-reducing techniques. The therapy was performed every other day. The trial consisted of three periods each, and lasted for 84 days. Subjects in Group B received music therapy. They listened to music that they preferred while acupuncture was being performed. Following acupuncture, they were allowed to perform musical activities, such as percussion, singing, and dancing. The music therapy was scheduled for one hour, including listening to music for 30 minutes and music activities for 30 minutes. MAIN OUTCOME MEASURES： The comprehensive functional evaluation scale of cerebral palsy and th

关键词： acupuncture music therapy cerebral palsy

Construction and manipulation of origami-inspired tubular structures with controlled mechanical buckling for collection and transportation of microspheres based on optically induced electrokinetics

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Science China(Technological Sciences) 2024年第9期67卷 2954-2964页

作者： YANG WenGuang WANG WenHao TENG Xiangyu QIAO ZeZheng yu haibo School of Electromechanical and Automotive Engineering Yantai UniversityYantai 264005China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China

The development of microengineered hydrogels has opened up unlimited possibilities for designing complex structures at the microscale. In this study, we constructed an origami-inspired tubular structure with controlled mechanical buckling based on optically induced electrokinetics(OEK). By inducing a stress gradient in the thickness, a tubular structure can be formed from a poly(ethylene glycol) diacrylate(PEGDA) hydrogel film of various shapes that have been custom fabricated. To achieve an ideal three-dimensional(3D) structure, the amplitude of the tubular structure can be controlled by adjusting the aspect ratios or polymerization time. Furthermore, the tubular structure can be manipulated for the collection and transportation of *** summary, we provide an effective method for designing 3D structures at the micro-nano scale. This forming method holds great potential for achieving various functions in tissue engineering, drug packaging, and transportation in the future.

关键词： origami-inspired tubular structures optically induced electrokinetics microfabrication mechanical buckling

The role of model checking in software engineering

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Frontiers of Computer Science 2018年第4期12卷 642-668页

作者： Anil Kumar KARNA yuting CHEN haibo yu Hao ZHONG Jianjun ZHAO Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Software Shanghai Jiao Tong University Shanghai 200240 China Department of Advanced Information Technology Kyushu University Fukuoka 819-0395 Japan

Model checking is a formal verification technique. It takes an exhaustively strategy to check hardware circuits and network protocols against desired properties. Having been developed for more than three decades, model checking is now playing an important role in software engineering for verifying rather complicated software artifacts. This paper surveys the role of model checking in software engineering. In particular, we searched for the related liter- atures published at reputed conferences, symposiums, workshops, and journals, and took a survey of （1） various model checking techniques that can be adapted to software development and their implementations, and （2） the use of model checking at different stages of a software development life cycle. We observed that model checking is useful for soft- ware debugging, constraint solving, and malware detection, and it can help verify different types of software systems, such as object- and aspect-oriented systems, service-oriented applications, web-based applications, and GUI applications including safety- and mission-critical systems. The survey is expected to help human engineers understand the role of model checking in software engineering, and as well decide which model checking technique（s） and/or tool（s） are applicable for developing, analyzing and verifying a practical software system. For researchers, the survey also points out how model checking has been adapted to their research topics on software engineering and its challenges.

关键词： software engineering model checking state-explosion

Fabrication of Waterproof Artificial Compound Eyes with Variable Field of View Based on the Bioinspiration from Natural Hierarchical Micro–Nanostructures

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Nano-Micro Letters 2020年第12期12卷 13-28页

作者： Peilin Zhou haibo yu Ya Zhong Wuhao Zou Zhidong Wang Lianqing Liu State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016People’s Republic of China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110169People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Department of Advanced Robotics Chiba Institute of TechnologyChiba 275‑0016Japan

Planar and curved microlens arrays(MLAs)are the key components of miniaturized microoptical *** order to meet the requirements for advanced and multipurpose applications in microoptical field,a simple manufacturing method is urgently required for fabricating MLAs with unique properties,such as waterproofness and variable field-of-view(FOV)*** properties are beneficial for the production of advanced artificial compound eyes for the significant applications in complex microcavity environments with high humidity,for instance,miniature medical ***,the simple and effective fabrication of advanced artificial compound eyes still presents significant *** this paper,bioinspired by the natural superhydrophobic surface of lotus leaf,we propose a novel method for the fabrication of waterproof artificial compound *** jet printing was used to fabricate hierarchical MLAs and nanolens arrays(NLAs)on polydimethylsiloxane *** flexible film of MLAs hybridized with NLAs exhibited excellent superhydrophobic property with a water contact angle of 158°.The MLAs film was deformed using a microfluidics chip to create artificial compound eyes with variable FOV,which ranged from 0°to 160°.

关键词： Bioinspired Hierarchical MLAs and NLAs Waterproof artificial compound eyes E-jet printing Microfluidics chip

A Programmable Inchworm-Inspired Soft Robot Powered by a Rotating Magnetic Field

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Journal of Bionic Engineering 2023年第2期20卷 506-514页

作者： Honglin Shen Shuxiang Cai Zhen Wang Zheng yuan haibo yu Wenguang Yang School of Electromechanical and Automotive Engineering Yantai UniversityYantai264005China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang110016China

With the growing demand for miniaturized workspaces,the demand for microrobots has been increasing in robotics *** to traditional rigid robots,soft robots have better robustness and *** a flexible structure,soft robots can undergo large deformations and achieve a variety of motion *** are working to design and fabricate flexible robots based on biomimetic principles,using magnetic fields for cable-free *** this study,we propose an inchworm-shaped soft robot driven by a magnetic ***,a robot is designed and fabricated and force analysis is ***,factors affecting the soft robot’s motion speed are examined,including the spacing between the magnets and the strength and frequency of the magnetic *** this basis,the motion characteristics of the robot in different shapes are explored,and its motion modes such as climbing are experimentally *** results show that the motion of the robot can be controlled in a two-dimensional plane,and its movement speed can be controlled by adjusting the strength of the magnetic field and other *** proposed soft robot is expected to find extensive applications in various fields.

关键词： Soft robot Bio-inspired soft robot Magnetic actuation

Effect of electro-acupuncture on basic fibroblast growth factor protein and mRNA expression in hippocampal dentate gyrus of spleen deficiency rats

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Neural Regeneration Research 2010年第2期5卷 126-131页

作者： Zhuoxin Yang yuanyuan Zhuo haibo yu Min Pi Mumin Shao Department of Acupuncture and Moxibustion Shenzhen Hospital of Traditional Chinese Medicine Shenzhen 518033 Guangdong Province China Shenzhen Hospital of Traditional Chinese Medicine Guangzhou University of Chinese Medicine Shenzhen 518033 Guangdong Province China Department of Pathology Shenzhen Hospital of Traditional Chinese Medicine Shenzhen 518033 Guangdong Province China

BACKGROUND： Spleen deficiency in traditional Chinese medicine refers to the functional disorder of spleen, pancreas, intestines, and nervous system in modern medicine. OBJECTIVE; To test whether electro-acupuncture could alter basic fibroblast growth factor （bFGF） protein and mRNA expression in the hippocampal dentate gyrus of spleen deficiency rats. DESIGN, TIME AND SETTING： The randomized, controlled, in vivo animal experiment was performed at the National LeveI-B Laboratory of Clinical Cell Molecule and Biology in Shenzhen Hospital of Traditional Chinese Medicine, between March and November in 2008. MATERIALS： Reserpine injection was produced by Guangdong Bangmin Pharmaceutical Co. Rhubarb extract granule preparation was produced by Guangdong Yifang Pharmaceutical. Huanqiu Brand sterile acupuncture pin was provided by Suzhou Acupuncture Supplies, China. Huatuo Brand electroacupuncture instrument （type SDZ-II） was purchased from Suzhou Medical Appliance Factory, China. METHODS： A total of 96 male Sprague Dawley rats were randomly assigned to control （n = 32） and induction （n = 64） groups. Spleen deficiency was induced via intraperitoneal injection of reserpine and intragastric administration of rhubarb. The successful models were randomized into two groups： model and electro-acupuncture, with 32 rats in each group. Electro-acupuncture was administered at Zusanfi （ST 36） and Sanyinjiao （SP 6） acupoints using a condensation wave and rarefaction （condensation wave 15 Hz） at a strength of 6-15 V for 20 minutes, once per day. The appearance of a slight shiver in the corresponding locus was taken as the standard. According to electro- acupuncture time points, each group was assigned to four subgroups at 7, 14, 28, and 49 days, respectively, with eight rats in each subgroup. Immunohistochemical staining, image analysis, and reverse-transcription polymerase chain reaction were performed at different time points. MAIN OUTCOME MEASURES： bFGF protein and mRNA expression in t

关键词： spleen deficiency electro-acupuncture basic fibroblast growth factor mRNA protein nerve factor neural regeneration

Evaluation of external quality factor of the superconducting cavity using extrapolation method

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Nuclear Science and Techniques 2009年第2期20卷 65-70页

作者： MA Zhenyu MA Guangming HOU Hongtao yu haibo ZHANG Rui LIU Jianfei Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

The estimation of the external quality factor is important for designing coupling devices for the cavities.A new representation of the external quality factor calculations for single-cell cavity coupled to a coaxial transmission line is derived based on analytic analysis and numeric analysis with the help of 3D electromagnetic code,and verified with experimental measurements at room *** logarithmic scale the results for the external quality factor were quasi-linear over the limited range,and the simulated and measured data could be used and extrapolated to the superconducting *** the unpolished 1.5 GHz 3rd harmonic superconducting cavity,the discrepancy between the evaluation value and measurement result is less than 25% within an acceptable deviation.

关键词：质量因子超导腔外推法评价因子耦合器件实验测量同轴传输线数值分析