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21篇 您的检索式:作者名="HE Yaoyao"
    题名 作者 年代 出处 被引量
1152 W high-power blue diode laser operated at 447 nm显示文摘We demonstrate a high-power blue diode laser operated at 447 nm combining laser diodes using an optical fiber bundle. As many as 127 diode lasers at 447 nm were coupled into 400 μm/0.22 NA fibers using an aspherical lens group with different focus lengths. The bare fibers were mechanically bundled through high temperature ultraviolet adhesive after the coatings of the 127 fibers were stripped. The diameter of the fiber bundle was 6 mm. The total output power of such a bundle was 152 W with electro-optical conversion efficiency of 27.56%and the RMS power instability was less than ±1% within 3 h.Peng Wu Ling Zhang Haijuan Yu Xiandan Yuan Zhiyan Zhang Pengfei Zhao Shuzhen Zou Chaojian He Yaoyao Qi Yingying Yang Gang Li Xubao Wang Xuechun Lin 2017Journal of Semiconductors2017,38,7:4
2Variable Tension Control for Discontinuous Tape Winding of Composites Based on Constant Extension Ratio显示文摘Discontinuous tape winding, which has obvious advantages in large extension ratio winding, is widely used in the molding of composites. Therefore, the research on technological parameters becomes the focus of many scholars. However, how to accomplish the variable tension control is usually not fully considered. Accordingly, the constant extension ratio and the smoothness of winding process cannot be ensured. Aiming at the problem of tension control, this paper first gives a comparatively deep research on the control method and the interaction mechanism of tension, extension ratio, automatic lap and automatic rectification. Then, according to the winding process features, the mechanical device and the mathematical model of tension control system are established respectively. With regard to the characteristics of PID controller and fuzzy controller, the fuzzy self-tuning PID controller is designed. As a result, the variable tension control is realized during the winding and lapping process, and the constant extension ratio is guaranteed. Finally, a sample application is presented for demonstration. By presenting the variable tension control techniques for discontinuous tape winding, the constant extension ratio of tapes is achieved, the consecution and the automation degree of winding process is improved as well. Thus, the quality of wound products is guaranteed.SHI Yaoyao YAN Long HE Xiaodong 2012Chinese Journal of Mechanical Engineering2012,25,5:3
3Analysis and control of the compaction force in the composite prepreg tape winding process for rocket motor nozzles显示文摘In the process of composite prepreg tape winding,the compaction force could influence the quality of winding products.According to the analysis and experiments,during the winding process of a rocket motor nozzle aft exit cone with a winding angle,there would be an error between the deposition speed of tape layers and the feeding speed of the compaction roller,which could influence the compaction force.Both a lack of compaction and overcompaction related to the feeding of the compaction roller could result in defects of winding nozzles.Thus,a flexible winding system has been developed for rocket motor nozzle winding.In the system,feeding of the compaction roller could be adjusted in real time to achieve an invariable compaction force.According to experiments,the force deformation model of the winding tape is a time-varying system.Thus,a forgetting factor recursive least square based parameter estimation proportional-integral-differential(PID)controller has been developed,which could estimate the time-varying parameter and control the compaction force by adjusting the feeding of the compaction roller during the winding process.According to the experimental results,a winding nozzle with fewer voids and a smooth surface could be wounded by the invariable compaction force in the flexible winding system.He Xiaodong Shi Yaoyao Kang Chao Yu Tao 2017Chinese Journal of Aeronautics2017,30,2:2
4Li 4 Ti 5 O 12 prepared by a modified citric acid sol–gel method for lithium-ion battery显示文摘Chunming Zhang Yaoyao Zhang Jin Wang Dan Wang Dannong He Yongyao Xia 2013Journal of Power Sources2013,,:1
5A fuzzy clustering iterative model using chaotic differential evolution algorithm for evaluating flood disaster显示文摘Yaoyao He Jianzhong Zhou Pangao Kou Ning Lu Qiang Zou 2011Expert Systems with Applications2011,38,10:1
6Nickel-catalysed C-O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran显示文摘A nickel-catalysed reduction of phenol derivatives activated by 2,4,6-trichloro-1,3,5-triazine (TCT) in ecofriendly 2-methyltetrahydrofuran (2-MeTHF) is described. The phenol-TCT derivatives were readily prepared using grinding method in short time without further purification. This catalytic system allowed the facile C-O cleavage of phenol-TCT derivatives under mild reaction conditions with high efficiency and good functional group tolerance. Gram-scale reaction was also achieved. Particularly, sequential functionalization of phenol-TCT derivatives followed by C-O bond reduction could also be realized,affording the high value-added products in moderate to good yields.Yaoyao Wang Jun Shen Qun Chen Liang Wang Mingyang He 2019Chinese Chemical Letters2019,30,2:1
7Short-term cascaded hydroelectric system scheduling based on chaotic particle swarm optimization using improved logistic map 显示文摘HE Yaoyao YANG Shanlin XU Qifa 2013Com- munications in Nonlinear Science and Numerical Simula- tion2013,18,7:1
8A novel cha- otic differential evolution algorithm for short-term cascaded hydroelectric system scheduling 显示文摘HE Yaoyao XU Qifa YANG Shanlin 2014International Journal of Electrical Power & Energy Systems2014,61,:1
9Comparison of different chaotic maps in particle swarm optimization algorithm for long-term cascaded hydroelectric system scheduling显示文摘HE Yaoyao ZHOU Jianzhong XIANG Xiuqiao 2009Chaos Soli- tons and Fractals2009,42,5:1
10Engineered Spindles of Little Molecules Around Electrospun Nanofbers for Biphasic Drug Release显示文摘Biphasic drug release is a popular advanced drug controlled release profle that has been drawing increasing attention from many felds.Electrospun nanofbers and their derivatives can be act as a strong platform for developing biphasic release dosage forms.In this study,a modifed coaxial electrospinning was implemented,in which little molecule solutions that contain a drug ibuprofen(IBU)and polyethylene glycol(PEG)were exploited as a sheath fuid to surround the core solutions composed of polymer ethyl cellulose(EC)and IBU.The prepared nanofber-based structural hybrids,i.e.,engineered spindles-on-astring(SOS)products,were successfully created and subjected to a series of characterizations.Scanning electron microscopy and transmission electron microscopy results showed the engineered SOS structures.IBU and the carriers EC and PEG had good compatibility,as suggested by X-ray difraction and Fourier transform infrared spectroscopy assessments.In vitro dissolution tests verifed that the SOS products were able to provide a typical biphasic release profle,releasing 40%of the loaded IBU within 1 h in an immediate manner in the frst phase,and the rest of the IBU in a sustained manner in the second phase.A combined mechanism of erosion and difusion is proposed for manipulating the IBU molecule release behaviors.Hua He Mian Wu Jingwen Zhu Yaoyao Yang Ruiliang Ge Deng‑Guang Yu 2022Advanced Fiber Materials2022,4,2:0
11Challenges and advances on low-temperature rechargeable lithiumsulfur batteries显示文摘Lithium-sulfur(Li-S)batteries have demonstrated the potential to conquer the energy storage related market due to the extremely high energy density.However,their performances at low temperature are still needed to be improved to broaden their applications.Therefore,in this review,the basic failure mechanisms and major challenges of Li-S battery at low temperature are categorized as the high desolvation barrier of Li^(+),uncontrolled nucleation and deposition of lithium,polysulfides clustering,and passivation of cathode by film like Li_(2)S.Targeting these major issues,strategies,and advances concerning the design of optimized electrolyte,composite cathode and functional separator are highlighted and discussed.Finally,the suggestions are proposed for the future development of practical Li-S battery working at low temperature scenarios,hoping to accelerate the commercialization process and bring revolution to the energy storage market.Yu Jiao Fan Wang Yuhong Ma Sangang Luo Yaoyao Li Anjun Hu Miao He Fei Li Dongjiang Chen Wei Chen Tianyu Lei Yin Hu 2023Nano Research2023,16,6:0
12Synergy of in-situ heterogeneous interphases tailored lithium deposition显示文摘The implementation of a robust artificial solid electrolyte interphase(ASEI)to replace the unstable natural SEI can regulate lithium deposition behaviors and avoid the safety hazards caused by dendrites permeation in lithium metal batteries.Despite of devoted efforts in tailoring components of ASEI,the intrinsic mechanism of interfacial synergy within the heterogeneous interphases has not been well elucidated yet.Herein,we show that the lithium plating/striping behaviors can be substantially enhanced(over 900 h with an overpotential of less than 20 mV at 1 mA·cm^(−2)in Li|Li symmetric cells and 146 cycles in anode-free cells)by regulating the heterogeneous interphases.This favorable ASEI composed of LiF and Li_(3)N components can be in-situ generated during cycling by large-scale fabricated fluorinated boron nitride coatings.Further,the synergy of each heterogeneous component within ASEI was explored theoretically and experimentally.Li_(3)N has high adsorption energy and low ion diffusion barrier,which facilitates the transport of lithium ions and avoids its local accumulation to evolve into dendrites.Both the substrate and LiF are interfacially stable with high electron tunneling barriers,preventing the electrolyte decomposition and parasitic reactions.Finally,the high stiffness of the boron nitride also ensures lithium dendrites are suppressed once they grow,providing a stable environment for long-term cycling of lithium metal batteries.Yinuo Li Anjun Hu Xingdong Gan Miao He Jun Zhu Wei Chen Yin Hu Tianyu Lei Fei Li Yaoyao Li Yuxin Fan Fan Wang Mingjie Zhou An Wen Baihai Li 2023Nano Research2023,16,6:0
13Electro-mechanical offset measurements of beam position monitors显示文摘Purpose The absolute beam position measurement in the booster and storage ring of the high energy photon source(HEPS)requires the offset between the electrical and mechanical centers of the beam position monitor(BPM).Method Traditionally,an RF signal is sent to an antenna or stretched wire aligned with the vacuum chamber,and the signal at each electrode is measured.Conversely,a replacement method using a vector network analyzer,which was proposed by Lambertson,does not involve mechanical alignment and can be used for electrical offset determination.Results and conclusions The electro-mechanical offsets of booster BPMs of the HEPS were measured using the Lambertson method.The result shows good agreement with the stretched wire method within a 30μm error.Jun He Yanfeng Sui Yong Li Yaoyao Du Linda Yu Junhui Yue Jianshe Cao Xujian Wang Zhe Duan Ouzheng Xiao 2023Radiation Detection Technology and Methods2023,7,2:0
14Synergy of first-and second-sphere interactions in a covalent organic framework boosts highly selective platinum uptake显示文摘Platinum recovery from waste electrical and electronic equipment(WEEE) in highly acidic solutions is significant to the electronics industry and environmental remediation. However, the lack of ingenious design and synergetic coordination gives rise to unsatisfied PtCl_(4)^(2-)extraction capacities and selectivities in most previously reported adsorbents(e.g., polymeric and inorganic materials). Herein, we proposed a synergistic strategy that realizes highly selective PtCl_(4)^(2-)uptake through first-and second-sphere coordinations. The proof-of-concept imine-linked covalent organic framework(SCU-COF-3) was found to chelate Pt Cl42-via the direct N…Pt coordination and the synergistically interlaminar N–H…Cl hydrogen bonds, which was disclosed by the comprehensive analysis of extended X-ray adsorption fine structure(EXAFS) characterizations and density functional theory(DFT) calculations. The unique adsorption mechanism imparts a superior adsorption capacity(168.4 mg g-1)and extraordinary Pt(II) selectivity to SCU-COF-3 under static conditions. In addition, SCU-COF-3 exhibits an upgraded distribution coefficient of 1.62 × 10^(5)mL· g^(-1), one order of magnitude higher than those of reported natural adsorbents. Specifically, SCU-COF-3 can extract PtCl_(4)^(2- )quantitatively from a simulated acidic waste solution coexisting with other 12 competitive ions, suggesting its promising application in practical scenarios.Linwei He Baoyu Li Zhonglin Ma Lixi Chen Shicheng Gong Mingxing Zhang Yaoyao Bai Qi Guo Fuqi Wu Fuqiang Zhao Jie Li Duo Zhang Daopeng Sheng Xing Dai Long Chen Jie Shu Zhifang Chai Shuao Wang 2023Science China Chemistry2023,66,3:0
15Evaluating Tislelizumab, Lenvatinib, and FOLFOX4-HAIC as a Conversion Therapy for Unresectable Hepatocellular Carcinoma显示文摘Background and aims:Conversion therapy downstages tumors and renders patients with unresectable hepatocel-lular carcinoma(HCC)eligible for radical resection.This study aimed to evaluate the efficacy and safety of tislelizumab plus lenvatinib and hepatic artery infusion chemotherapy with oxaliplatin,fluorouracil,and leuco-vorin(FOLFOX4-HAIC)as a first-line conversion therapy.Methods:Clinical data from HCC patients who were treated with the triple therapy between April 2021 and April 2022 were retrospectively analyzed.The primary outcome included objective response rate(ORR),disease control rate(DCR),conversion resection rate(CRR),and treatment-related adverse events(TRAEs).Results:A total of 18 patients completed conversion therapy assessment,which ended on March 27,2023.The patients had a median age of 55.5(37–72)years,and 94.4%were male.According to mRECIST,tumor shrinkage was observed in all patients,with an ORR of 94.4%(17/18),a DCR of 94.4%(17/18),and a median time to response of 1.4(0.7–3.0)months.Successful conversion was observed in 61.1%(11/18)of patients(mRECIST).The CRR and pathological complete response were 38.9%(7/18)and 57.1%(4/7),respectively.The median progression-free survival(PFS)was 17.8 months,while median overall survival was not reached.The 6-and 9-month PFS rates were 83.3%and 66.7%,respectively.The most common TRAE(16/18 patients,88.9%)was an increase in aspartate aminotransferase levels.Conclusion:Tislelizumab combined with lenvatinib and FOLFOX4-HAIC achieved a high conversion rate and acceptable toxicity in patients with unresectable HCC,suggesting that this combination may represent a new conversion strategy for this population.Kai Tan Xiaojun He Haoran Yuan Shoujie Zhao Chenyu Gong Yaoyao Zhao Haiyan Nan Li Zang Zhonghua Luo Xilin Du 2023iLIVER2023,2,3:0
16Melatonin inhibits Gram-negative pathogens by targeting citrate synthase显示文摘Bacterial infections caused by Gram-negative pathogens represent a growing burden for public health worldwide.Despite the urgent need for new antibiotics that effectively fight against pathogenic bacteria,very few compounds are currently under development or approved in the clinical setting.Repurposing compounds for other uses offers a productive strategy for the development of new antibiotics.Here we report that the multifaceted melatonin effectively improves survival rates of mice and decreases bacterial loads in the lung during infection.Mechanistically,melatonin specifically inhibits the activity of citrate synthase of Gram-negative pathogens through directly binding to the R300,D363,and H265 sites,particularly for the notorious Pasteurella multocida.These findings highlight that usage of melatonin is a feasible and alternative therapy to tackle the increasing threat of Gram-negative pathogen infections via disrupting metabolic flux of bacteria.Fang He Yuan Liu Pan Li Xiaoyan Wu Yaoyao Xia Dong Zhang Nengzhang Li Yuanyi Peng Guoqiang Zhu Rüdiger Hardeland Russel JReiter Wenkai Ren 2022Science China(Life Sciences)2022,65,7:0
17Nanomaterial-based microelectrode arrays for in vitro bidirectional brain–computer interfaces:a review显示文摘A bidirectional in vitro brain–computer interface(BCI)directly connects isolated brain cells with the surrounding environment,reads neural signals and inputs modulatory instructions.As a noninvasive BCI,it has clear advantages in understanding and exploiting advanced brain function due to the simplified structure and high controllability of ex vivo neural networks.However,the core of ex vivo BCIs,microelectrode arrays(MEAs),urgently need improvements in the strength of signal detection,precision of neural modulation and biocompatibility.Notably,nanomaterial-based MEAs cater to all the requirements by converging the multilevel neural signals and simultaneously applying stimuli at an excellent spatiotemporal resolution,as well as supporting long-term cultivation of neurons.This is enabled by the advantageous electrochemical characteristics of nanomaterials,such as their active atomic reactivity and outstanding charge conduction efficiency,improving the performance of MEAs.Here,we review the fabrication of nanomaterial-based MEAs applied to bidirectional in vitro BCIs from an interdisciplinary perspective.We also consider the decoding and coding of neural activity through the interface and highlight the various usages of MEAs coupled with the dissociated neural cultures to benefit future developments of BCIs.Yaoyao Liu Shihong Xu Yan Yang Kui Zhang Enhui He Wei Liang Jinping Luo Yirong Wu Xinxia Cai 2023Microsystems & Nanoengineering2023,9,1:0
18Gut microbiota bridges dietary nutrients and host immunity显示文摘Dietary nutrients and the gut microbiota are increasingly recognized to cross-regulate and entrain each other,and thus affect host health and immune-mediated diseases.Here,we systematically review the current understanding linking dietary nutrients to gut microbiota-host immune interactions,emphasizing how this axis might influence host immunity in health and diseases.Of relevance,we highlight that the implications of gut microbiota-targeted dietary intervention could be harnessed in orchestrating a spectrum of immune-associated diseases.Lijuan Fan Yaoyao Xia Youxia Wang Dandan Han Yanli Liu Jiahuan Li Jie Fu Leli Wang Zhending Gan Bingnan Liu Jian Fu Congrui Zhu Zhenhua Wu Jinbiao Zhao Hui Han Hao Wu Yiwen He Yulong Tang Qingzhuo Zhang Yibin Wang Fan Zhang Xin Zong Jie Yin Xihong Zhou Xiaojun Yang Junjun Wang Yulong Yin Wenkai Ren 2023Science China(Life Sciences)2023,66,11:0
19Preoperative virtual reduction method for pelvic fractures based on statistical shape models and partial surface data显示文摘Virtual reduction is crucial for successful and accurate reduction of pelvic fractures.Various methods have been proposed in this regard.However,not all of them are applicable to every pelvic fracture.Among these methods,the efficiency and accuracy of the method based on statistical shape models in clinical applications require further improvement.This study proposes a virtual reduction method for pelvic fractures that uses statistical shape models and partial surface data of a broken pelvis.Simulated fracture and clinical case experiments were conducted to validate the accuracy and effectiveness of the proposed method.The simulated fracture experiments yielded an average error of 1.57±0.39 mm and a maximum error of 12.82±3.54 mm.The virtual reduction procedure takes approximately 40 s.Based on three clinical case experiments,the proposed method achieves an acceptable level of accuracy compared with manual reduction by a surgeon.The proposed method offers the advantages of shorter virtual reduction times and satisfactory reduction accuracy.In the future,it will be integrated into the preoperative planning system for pelvic fracture reduction,thereby improving patient outcomes.Wei Kou Yaoyao He Xiao Cheng Zhewei Wang Yuan Yang Shaolong Kuang 2023Biomimetic Intelligence & Robotics2023,3,4:0
20A biologically stable, self-catalytic DNAzyme machine encapsulated by metal-phenolic nanoshells for multiple microRNA imaging显示文摘DNAzyme machines play critical roles in the fields of cell imaging, disease diagnosis, and cancer therapy. However, the applications of DNAzyme machines are limited by the nucleases-induced degradation,non-specific binding of proteins, and insufficient provision of cofactors. Herein, protected DNAzyme machines with different cofactor designs(referred to as Pro Ds) were nanoengineered by the construction of multifunctional metal-phenolic nanoshells to deactivate the interferential proteins, including nucleases and non-specific binding proteins. Moreover, the nanoshells not only facilitate the cellular internalization of Pro Ds but provide specific metal ions acting as cofactors of the designed DNAzymes. Cellular imaging results demonstrated that Pro Ds could effectively and simultaneously monitor multiple tumor-related micro RNAs in living cells. This facile and rapid strategy that encapsulates DNAzyme machines into the protective metal-phenolic nanoshells is anticipated to extend to a wide range of functional nucleic acidsbased biomedical applications.Xin Jin Qin Wang Jiezhou Pan Jin Wang Yunxiang He Jiaojiao Shang Mei Chen Xianglian He Yaoyao Zhang Bo Wang Yajie Wang Guidong Gong Junling Guo 2023Chinese Chemical Letters2023,34,10:0
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