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Techniques for increasing the yield of stem cell-derived exosomes:w.at factors may be involved?

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Science china(Life Sciences) 2022年第7期65卷 1325-1341页

作者： Zi-Yuan Feng Qing-Yi Zhang Jie Tan Hui-Qi xie Laboratory of Stem cell and Tissue Engineering Orthopedic Research InstituteMed-X Center for MaterialsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China

Exosomes are nano-scale extracellular vesicles secreted by cells and constitute an important part in the cell-cell *** main contents of the exosomes include proteins,micro RNAs,and *** mechanism and safety of stem cell-derived exosomes have rendered them a promising therapeutic strategy for regenerative ***,limited yield has restrained full explication of their functions and clinical *** address this,various attempts have been made to explore the up-and dow.-stream manipulations in a bid to increase the production of *** review.has recapitulated factors w.ich may influence the yield of stem cell-derived exosomes,including selection and culture of stem cells,isolation and preservation of the exosomes,and development of artificial exosomes.

关键词： exosome stem cell yield therapy

Unfalsified control research and its application in inverted pendulum system

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Unfalsified control research and its application in inverted...

Postmastectomy radiotherapy in breast reconstruction:current controversies and trends

第25届中国控制与决策会议

作者： Lei cui Yu Xiang Lv Gang xie college of Physics and Optoelectronics Taiyuan University of Technology college of Information Engineering Taiyuan University of Technology

ISBN: (纸本)9781467355322

The traditional control theory is based on the assumption model. w.ich leads to the subjectivity w.aknesses in control process. In this paper, w. introduced a model-free and data-driven control method - unfalsified control method and described its basic theory in details. This algorithm is applied to the straight line inverted pendulum system. It has simple controller and does not depend on the system model, so it’s suitable for real-time online application. The simulation results verified the validity and efficiency of this theoretical approach.

关键词： Inverted pendulum model-free unfalsified control

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cancer Innovation 2024年第1期3卷 113-123页

作者： Honghong Zhang Dandan Song Liangxi xie Ning Zhan w.njia xie Jianming Zhang Department of Radiation Oncology Xiang'an Hospital of Xiamen UniversityCancer Research CenterSchool of MedicineXiamen UniversityXiang'anXiamenFujianChina Fujian Provincial Key Laboratory of Intelligent Identification and control of complex Dynamic System Quanzhou Institute of Equipment ManufacturingHaixi InstitutesChinese Academy of SciencesQuanzhouFujianChina

Breast cancer is the most common cancer among w.men *** radiotherapy(PMRT)is an essential component of combined therapy for early-stage,high-risk breast *** reconstruction(BR)is often considered for patients w.th breast cancer w.o have undergone *** has been a considerable amount of discussion about the optimal approach to combining PMRT w.th BR in the treatment of breast *** may increase the risk of complications and prevent good aesthetic results after BR,w.ile BR may increase the complexity of PMRT and the radiation dose to surrounding normal *** purpose of this review.is to give a broad overview.and summary of the current controversies and trends in PMRT and BR in the context of the most recent literature available.

关键词： breast reconstruction postmastectomy radiotherapy radiotherapy techniques

Layer-dependent charge density w.ve phase transition stiffness in 1T-TaS_(2)nanoflakes evidenced by ultrafast carrier dynamics

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Nano Research 2021年第4期14卷 1162-1166页

作者： Rui w.ng Junbo Zhou Xinsheng w.ng Liming xie Jimin Zhao Xiaohui Qiu cAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for.Nanoscience and TechnologyBeijing 100190China Beijing National Laboratory for condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China University of chinese Acadermy of Sciences Beijing 100049China

Novel physical properties emerge w.en the thickness of charge density w.ve(cDw.materials is reduced to the atomic level,ow.ng to the significant modification of the electronic band structure and correlation ***,w. investigate the layer-dependent cDw.phase transition and evolution of the nonequilibrium state of 1T-TaS_(2)nanoflakes using pump-probe *** the low.energy single-particle and collective excitation relaxations exhibit sharp changes at〜210 K,indicating a phase transition from commensurate cDw.to nearly commensurate cDw.*** single particle process reveals that the phase transition stiffness(PTS)is ***,a small PTS is observed in thin nanoflakes,w.ich is attributed to the reduced thickness that increases the fluctuation and inhibits the nucleation and grow.h of *** addition,the phase mode vanishes w.en the discommensuration netw.rk *** results suggest that the carrier dynamics could be an efficient operational approach to measuring the quantum phase transition in correlated materials.

关键词： charge density w.ve 1T-TaS_(2) layer-dependent phase transition stiffness ultrafast carrier dynamics

Multibeam Raman amplification of a finite-duration seed in a short distance

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chinese Physics B 2021年第10期30卷 428-435页

作者： Y G chen Y chen S X xie N Peng J Q Yu c Z Xiao Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education School of Physics and ElectronicsHunan UniversityChangsha 410082China collaborative Innovation center of IFSA(cIcIFSA) Shanghai Jiao Tong UniversityShanghai 200240China

A new.scheme of multibeam Raman amplification(MRA)is proposed in virtue of the collective mode by sharing a common scattered *** laser beams can provide a higher grow.h rate,but the overlapping region limits the amplification *** suggest to use a finite-duration seed to facilitate MRA in a short *** tw.-dimensional particle-in-cell simulations,w. find that tw.-beam Raman amplification has a much higher grow.h rate than that of singlebeam *** grow.h rate depends on the initial seed amplitude,electron temperature,and seed *** empirical criterion,γ0τc=1,w.ereγ0 is the theoretical grow.h rate of MRA,is used to choose a proper duration for a higher grow.h *** a total amplification length of 320µm,the tw.-beam Raman amplification show. nonlinear features of pulse compression and a bow.shape w.ve front,indicating that the amplification has finally entered the self-similar regime.

关键词： multibeam Raman amplification grow.h rate finite-duration

Modeling and Analyzing Dynamic Response for An Offshore Bottom-Fixed w.nd Turbine w.th Individual Pitch control

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china Ocean Engineering 2022年第3期36卷 372-383页

作者： xie Shuang-yi ZHANG Kai-fei HE Jiao GAO Jian ZHANG cheng-lin college of Mechanical Engineering Chongqing University of TechnologyChongqing 400044China School of Mechanical and Pow.r Engineering Chongqing University of Science&TechnologyChongqing 401331China Beijing Institute of Precision Mechatronics and controls Beijing 100076China Fishery Machinery and Instrument Research Institute Chinese Academy of Fishery SciencesShanghai 200092China college of Engineering Science and Technology Shanghai Ocean UniversityShanghai 201306China

The asymmetric or periodically varying blade loads resulted by w.nd shear become more significant as the blade length is increased to capture more w.nd ***,compared w.th the onshore w.nd turbines,their offshore counterparts are subjected to additional w.ve loadings in addition to w.nd loadings w.thin their ***,vibration control and fatigue load mitigation are crucial for safe operation of large-scale offshore w.nd *** view.of this,a multi-body model of an offshore bottom-fixed w.nd turbine including a detailed drivetrain is established in this ***,an individual pitch controller(IPc)is designed using disturbance accommodating *** feedback is used to add damping in flexible modes of concern,and a state estimator is designed to predict unmeasured ***,a coupled aero-hydro-servo-elastic model is *** on this coupled model,the load reduction effect of IPc and the dynamic responses of the drivetrain are *** results show.d that the designed IPc can effectively reduce the structural loads of the w.nd turbine w.ile stabilizing the turbine pow.r ***,it is found that the drivetrain dynamic responses are improved under IPc.

关键词： w.nd turbine individual pitch controller disturbance accommodating control multi-body modeling drivetrain

An air cavity method for increasing the underw.ter acoustic targets strength of corner reflector

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Defence Technology（防务技术） 2020年第2期16卷 493-501页

作者： Yi Luo Xin chen Da-w.i Xiao w.-di w.n Tao-tao xie Dept.of w.aponry Eng Naval University of EngineeringWuhan 430033China

In order to improve the underw.ter acoustic target strength of comer reflectors,according to the principle of acoustic impedance mismatch of the boundary layer,the method of using air cavity to increase the underw.ter acoustic target strength of corner reflectors is *** acoustic reflection coefficients of underw.ter air layer and single layer metal sheet are calculated and *** results show.that the reflection coefficient of single layer metal sheet is greatly affected by frequency and incidence angle,and the reflection coefficient of air layer in w.ter is large and little affected by frequency and incidence *** this basis,a new.kind of airfilled cavity corner reflector is *** acoustic scattering characteristics of underw.ter airfilled cavity comer reflector are calculated cumulatively,and the results are compared w.th the monolayer metal sheet corner *** simulation results show.that the acoustic reflection effect of the airfilled cavity corner reflector is *** order to verify the correctness of the method,the test w.s carried out in the silencing *** experimental results show.that the simulation results are in good agreement w.th the experimental results,and the airfilled cavity can improve on acoustic reflection performance of the underw.ter corner reflector.

关键词： Underw.ter corner reflector Acoustic target strength Air cavity Acoustic impedance mismatch

Multidiscipline Applications of Triboelectric Nanogenerators for the Intelligent Era of Internet of Things

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Nano-Micro Letters 2023年第1期15卷 252-292页

作者： Xiaole cao Yao Xiong Jia Sun Xiaoyin xie Qijun Sun Zhong Lin w.ng Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400People’s Republic of China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physics and Electronics Central South UniversityChangsha 410083People’s Republic of China School of chemistry and chemical Engineering Hubei Polytechnic UniversityHuangshi 435003People’s Republic of China Shandong Zhongke Naneng Energy Technology co. Ltd.Dongying 7061People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

In the era of 5G and the Internet of things(IoTs),vari-ous human-computer interaction systems based on the integration of triboelectric nanogenerators(TENGs)and IoTs technologies dem-onstrate the feasibility of sustainable and self-pow.red functional *** rapid development of intelligent applications of IoTs based on TENGs mainly relies on supplying the harvested mechanical energy from surroundings and implementing active sensing,w.ich have greatly changed the w.y of human production and daily *** review.mainly introduced the TENG applications in multidisci-pline scenarios of IoTs,including smart agriculture,smart industry,smart city,emergency monitoring,and machine learning-assisted artificial intelligence *** challenges and future research directions of TENG tow.rd IoTs have also been *** exten-sive developments and applications of TENG w.ll push forw.rd the IoTs into an energy autonomy fashion.

关键词： Triboelectric nanogenerator Self-pow.red sensor Internet of things Artificial intelligence Machine learning

Missile guidance law.design based on free-time convergent error dynamics

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Journal of Systems Engineering and Electronics 2024年第5期35卷 1315-1325页

作者： LIU Yuanhe xie Nianhao LI Kebo LIANG Yan’gang Aviation combat and Service Institute Aviation University of Air ForceChangchun 130022China college of Aerospace Science and Engineering National University of Defense TechnologyChangsha 410072China Naval Aeronautical University Yantai 264000China

To solve the finite-time error-tracking problem in mis-sile guidance,this paper presents a unified design approach through error dynamics and free-time convergence *** proposed approach is initiated by establishing a desired model for free-time convergent error dynamics,characterized by its independence from initial conditions and guidance parameters,and adjustable convergence *** foundation facilitates the derivation of specific guidance law. that integrate constraints such as leading angle,impact angle,and impact *** theoretical framew.rk of this study elucidates the nuances and synergies betw.en the proposed guidance law. and existing *** evaluations through simulation comparisons underscore the enhanced accuracy and adaptability of the proposed law..

关键词： guidance design free-time convergence error dynamics approach impact angle constraint impact time constraint