|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Study on air flow dynamic characteristic of mechanical ventilation of a lung simulator显示文摘As an important life support treatment, mechanical ventilation is usually adopted in clinics. With the development of the res-piratory diagnostic and treatment technologies, air flow dynamics of mechanical ventilation is usually referenced in the evaluation of pulmonary status and assessment of respiratory therapy. In order to improve the ventilation efficiency and provide a reference for pulmonary diagnostics, in this paper, a new mathematical model of mechanical ventilation system was set up. Furthermore, a prototype mechanical ventilation system for an artificial simulating lung was designed and experimentally studied. Lastly, in order to improve the ventilation efficiency and provide a reference for pulmonary diagnostics, the air flow dynamics of the mechanical ventilation system was illustrated through simulation and experimental studies. The study can be helpful to the optimization of the mechanical ventilation system. | NIU JingLong SHI Yan CAO ZhiXin CAI MaoLin CHEN Wei ZHU Jian XU WeiQing | 2017 | Science China(Technological Sciences)2017，60，2： | 8 |
| 2 | Construction of adaptive redundant multiwavelet packet and its application to compound faults detection of rotating machinery显示文摘It is significant to detect the fault type and assess the fault level as early as possible for avoiding catastrophic accidents.Due to diversity and complexity,the compound faults detection of rotating machinery under non-stationary operation turns to be a challenging task.Multiwavelet with two or more base functions may match two or more features of compound faults,which may supply a possible solution to compound faults detection.However,the fixed basis functions of multiwavelet transform,which are not related with the vibration signal,may reduce the accuracy of compound faults detection.Moreover,the decomposition results of multiwavelet transform not being own time-invariant is harmful to extract the features of periodical impulses.Furthermore,multiwavelet transform only focuses on the multi-resolution analysis in the low frequency band,and may leave out the useful features of compound faults.To overcome these shortcomings,a novel method called adaptive redundant multiwavelet packet(ARMP) is proposed based on the two-scale similarity transforms.Besides,the relative energy ratio at the characteristic frequency of the concerned component is computed to select the sensitive frequency bands of multiwavelet packet coefficients.The proposed method was used to analyze the compound faults of rolling element bearing.The results showed that the proposed method could enhance the ability of compound faults detection of rotating machinery. | CHEN JingLong ZI YanYang HE ZhengJia WANG XiaoDong | 2012 | Science China(Technological Sciences)2012，55，8： | 7 |
| 3 | Nonlinear distortion and spatial dispersion of intense terahertz generation in lithium niobate via the tilted pulse front technique显示文摘We systematically investigate the influences of the input infrared spectrum, chirp, and polarization on the emitted intense terahertz spectrum and spatial dispersion in lithium niobate via optical rectification. The terahertz yield and emission spectrum depend on both the chirp and spectrum of the input pump laser pulses. We also observe slight non-uniform spatial dispersion using a knife-edge measurement, which agrees well with the original predictions. The possible mechanism is the nonlinear distortion effect caused by high-energy laser pumping.Our study is very important and useful for developing intense terahertz systems with applications in extreme terahertz sciences and nonlinear phenomena. | BAOLONG ZHANG SHANGQING LI SHUSU CHAI XIAOJUN Wu JINGLONG MA LIMING CHEN YUTONG LI | 2018 | Photonics Research2018，6，10： | 4 |
| 4 | Direct site-specific treatment of skin cancer using doxorubicin-loaded nanofibrous membranes显示文摘Doxorubicin(DOX) is widely used in cancer therapy. However, its application is sometimes limited by its adverse cardiotoxicity and delivery pathways. In our study, we prepared a topical implantable delivery device for controlled drug release and site-specific treatment. The core region consisted of poly(lactic co-glycolic acid) and poly-caprolactone, whereas the shell region was composed of cross-linked gelatin.DOX was enclosed in the core region of a core-shell nanofiber obtained by electrospinning. This implantable delivery device was implanted on the top of the melanoma in a mouse model, which had shown a DOX-controlled release profile with sustained and sufficient local concentration against melanoma growth in mice with negligible side effects. Compared with the traditional intravenous administration,the implantable device allows precisely localized treatment and therefore can reduce the dose, decrease the injection frequency, and ensure antitumor efficacy associated with lower side effects to normal tissues. Using a coaxial electrospinning process, it is promising to deliver different hydrophobic or hydrophilic drugs for direct tumor site-specific therapy without large systemic doses and minimized systemic toxicity. | Mengyu Guo Guoqiang Zhou Zhu Liu Jing Liu Jinglong Tang Yating Xiao Wenshi Xu Ying Liu Chunying Chen | 2018 | Science Bulletin2018，63，2： | 4 |
| 5 | Hypersonic flutter and flutter suppression system of a wind tunnel model显示文摘The aeroelastic behavior of a thin flat rudder model was numerically simulated and experimentally investigated in a hypersonic wind tunnel. In particular, a flutter suppression system taking advantage of collision within small gaps was proposed and a novel system for the flutter simulation of the whole nonlinear aeroelastic system including the flutter suppression system was developed. First, the critical flutter dynamic pressure of the rudder without the flutter suppression system was calculated with different methods. Then, the whole nonlinear aeroelastic system, including theflutter suppression system, was simulated to design the gap size. Finally, the flutter suppression system was experimentally validated in a hypersonic wind tunnel operating at Mach number 5. The typical phenomenon of Limit Cycle Oscillation(LCO) was observed, avoiding the structural failure of the model and the consistency between numerical and experimental results was demonstrated.The proposed suppression system can improve the design and reusability of test models of hypersonic flutter experiments. | Chuanwei XUAN Jinglong HAN Bing ZHANG Haiwei YUN Xiaomao CHEN | 2019 | Chinese Journal of Aeronautics2019，32，9： | 3 |
| 6 | Contrasting dynamic characteristics of shear turbulence and Langmuir circulation in the surface mixed layer显示文摘Large eddy simulation(LES) is used to investigate contrasting dynamic characteristics of shear turbulence(ST)and Langmuir circulation(LC) in the surface mixed layer(SML). ST is usually induced by wind forcing in SML. LC can be driven by wave-current interaction that includes the roles of wind, wave and vortex forcing. The LES results show that LC suppresses the horizontal velocity and greatly modifies the downwind velocity profile, but increases the vertical velocity. The strong downwelling jets of LC accelerate and increase the downward transport of energy as compared to ST. The vertical eddy viscosity Km of LC is much larger than that of ST. Strong mixing induced by LC has two locations. They are located in the 2ds–3ds(Stokes depth scale) and the lower layer of the SML,respectively. Its value and position change periodically with time. In contrast, maximum Km induced by ST is located in the middle depth of the SML. The turbulent kinetic energy(TKE) generated by LC is larger than that by ST. The differences in vertical distributions of TKE and Km are evident. Therefore, the parameterization of LC cannot be solely based on TKE. For deep SML, the convection of large-scale eddies in LC plays a main role in downward transport of energy and LC can induce stronger velocity shear(S2) near the SML base. In addition, the large-scale eddies and S2 induced by LC is changing all the time, which needs to be fully considered in the parameterization of LC. | LI Guojing WANG Dongxiao CHEN Ju YAO Jinglong ZENG Lili SHU Yeqiang SUI Dandan | 2015 | Acta Oceanologica Sinica2015，34，5： | 2 |
| 7 | Angular distribution of terahertz emission from laser interactions with solid targets显示文摘Intense femtosecond laser-plasma interactions can produce high power terahertz radiations.In our experiment,the polished copper target was irradiated by a p-polarized laser with intensity of more than 1018 W/cm2 at an incident angle of 67.5 from the target normal.The THz energy from three dierent detection angles is measured.The maximum emission is found in the direction at an angle of 45 to the laser backward direction,which is more than one order of magnitude higher than in the other two directions.A simple theoretical model has been established to explain the measurements. | DU Fei LI Chun ZHOU MuLin WANG WeiMin SU LuNing ZHENG Yi GE XuLei LI YuTong MA JingLong LIU XiaoLong ZHANG Lu SHENG ZhengMing CHEN LiMing LU Xin DONG QuanLi WANG ZhaoHua WEI ZhiYi ZHANG Jie | 2012 | Science China(Information Sciences)2012，55，1： | 2 |
| 8 | Wavelet transform based on inner product in fault diagnosis of rotating machinery: A review 显示文摘 | Jinglong Chen Zipeng Li Jun Pan | 2016 | Mechanical Systems and Signal Processing2016，70，： | 1 |
| 9 | QNE1 is a key flowering regulator determining the length of the vegetative period in soybean cultivars显示文摘The soybean E1 gene is a major regulator that plays an important role in flowering time and maturity.However,it remains unclear how cultivars carrying the dominant E1 allele adapt to the higher latitudinal areas of northern China.We mapped the novel quantitative trait locus QNE1(QTL near E1) for flowering time to the region proximal to E1 on chromosome 6 in two mapping populations.Positional cloning revealed Glyma.06G204300,encoding a TCP-type transcription factor,as a strong candidate gene for QNE1.Association analysis further confirmed that functional single nucleotide polymorphisms(SNPs) at nucleotides 686 and 1,063 in the coding region of Glyma.06G204300 were significantly associated with flowering time.The protein encoded by the candidate gene is localized primarily to the nucleus.Furthermore,soybean and Brassica napus plants overexpressing Glyma.06G204300 exhibited early flowering.We conclude that despite their similar effects on flowering time,QNE1 and E4 may control flowering time through different regulatory mechanisms,based on expression studies and weighted gene co-expression network analysis of flowering time-related genes.Deciphering the molecular basis of QNE1 control of flowering time enriches our knowledge of flowering gene networks in soybean and will facilitate breeding soybean cultivars with broader latitudinal adaptation. | Zhengjun Xia Hong Zhai Yanfeng Zhang Yaying Wang Lu Wang Kun Xu Hongyan Wu Jinglong Zhu Shuang Jiao Zhao Wan Xiaobin Zhu Yi Gao Yingxiang Liu Rong Fan Shihao Wu Xin Chen Jinyu Liu Jiayin Yang Qijian Song Zhixi Tian | 2022 | Science China(Life Sciences)2022，65，12： | 1 |
| 10 | The influence of target material and thickness on proton energy and angular distribution显示文摘The paper has studied the influence of target material and thickness on energy and angular distributions of the protons generated by using an 800 nm,60 fs,0.24 J laser pulse to irradiate solid target foils.The results show that the initial density and thickness of the targets will affect the formation of the acceleration sheath fields in the target normal direction.For the same target thickness,using lower density target materials can obtain a higher proton maximum energy.However,lower density targets tend to be deformed due to the shock waves launched by the laser pulses,making the proton spatial distribution more divergent. | SU LuNing LIU BiCheng LIN XiaoXuan LIU Feng DU Fei LIU XiaoLong ZHENG Yi GE XuLei LI YuTong SHENG ZhengMing CHEN LiMing WANG WeiMin MA JingLong LU Xin WEI ZhiYi CHEN JiaEr ZHANG Jie | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，2： | 1 |
| 11 | Preparation and characterization of calcium aluminate by chemical synthesis显示文摘Saturated Ca(OH)_2 and AlCl_3 solutions were used to synthesize calcium aluminate hydrate precipitates at room temperature; high purity calcium aluminate powders with stable phases were made by calcination of the precursors at a temperature as low as 1100℃. PSD and BET analysis revealed the particles with sizes ranging from submicrometer to several micrometers and with a specific area of 13 nr/g. The measurement of hydraulic exotherm revealed that the exothermal rate is in peak for about 2 h. The exothermal quantities are 449.24 J/g at 12 h and 488.38 J/g at 24 h. Its strength development is quick and the 1 day curing strength is almost equal to 100% of the 3 days curing strength in the mortar test. | Feng Chen Yanruo Hong Jialin Sun Jinglong Bu | 2006 | Journal of University of Science and Technology Beijing2006，13，1： | 1 |
| 12 | Identification,structure and function of a novel tetraspaninhoniologue from Spirometra erinaceieuropaei显示文摘Objective:To identify a full length cDNA sequence of a novel tetraspanin(TSP) homologue from Spirometra erinaceieuropaei and to predict the structure and function of its encoding protein using bioinformatics methods.Methods:Using the NCBI,EMBI,Expasy and other online sites, the open reading frame(ORF),conserved domain,physical and chemical parameters,signal peptide,transmembrane domain,epitope,topological structures of the protein sequences were predicted.And Vector NTI software was used for multiple sequence alignment and phylogenetic tree construction.Results:’Hie target sequence was 1 132 hp length with a 681 hp biggest ORF encoding 226 amino acids protein with typical TSP conserved domain.It was confirmed as full length cDNA of TSP16 from Spirometra erinaceieuropaei and named as SeTSP16 (GenBank accession number:JF728872).The predicted molecular weight and isoelectric point of the deduced protein were 24 750.5 Da and 7.88 Da,respectively.Compared with TSP16s from Schistosoma japonicum and Schistosoma mansoni.it showed similarity of 59%and 59%, respectively.SeTSP16 contained four transmembrane domains(TM 1-4),intracellular N and C-termini,one short small extracellular loop and one large extracellular loop.Four major epitopes that were significant different from the corresponding epitope regions of TSP16 from Schistosoma mansoni and Schistosoma japonicum were predicted.Conclusions:The full length cDNA sequences of SeTSP16 arc identified.It encodes a transmembrane protein which might be an ideal diagnosis antigen and target molecule for antiparasitic drugs. | Fu Qiongyao Lu Yajun Rao Langyu Chen Jinglong Wu Qiang Cai Qunfang Li Lihua Wu Lixian Lu Gang | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，9： | 1 |
| 13 | Correction method of airfoil thickness effect in hinge moment calculation of a folding wing显示文摘The influences of airfoil thickness on the aerodynamic loading distribution and the hinge moments of folding wing aircraft are presented in this work.The traditional panel method shows deficiencies in the calculation of folding wing's hinge moments.Thus, a thickness correction strategy for the aerodynamic model with CFD results is proposed, and an aeroelastic flight simulation platform is constructed based on the secondary development of ADAMS.Based on the platform,the developed aerodynamic model is verified, then the flight-folding process of the folding wing aircraft is simulated, and the influences of airfoil thickness on the results are investigated.Results show that the developed aerodynamic model can effectively describe the thickness effect of the folding wing.Airfoil thickness, which cannot be considered by the panel method, has a great influence on the hinge moments during the folding process, and the thickness correction has great significance in the calculation of folding wing's hinge moments. | Hao XU Jinglong HAN Haiwei YUN Xiaomao CHEN | 2020 | Chinese Journal of Aeronautics2020，33，3： | 1 |
| 14 | Ge- netic diversity of local Yunnan chicken breeds and their re- lationships with Red Junglefowl 显示文摘 | HUO Jinglong WE GuiSheng CHEN Tao | 2014 | Genetics and Molec- ular Research: GMR2014，13，2： | 1 |
| 15 | A new isoform of interleukin-3 receptor a with novel differentiation activity and high affinity binding mode显示文摘 | Chen Jinglong Olsen Jane Ford Sally | 2009 | J Biol Chem2009，284，9： | 1 |
| 16 | Oral yeast flora and its ITS sequence diversity among a large cohort of medical students in Hainan, China显示文摘 | Huamin Wang Yin Wang Jinglong Chen | 2007 | Mycopathologia2007，164，： | 1 |
| 17 | Com- pound faults detection of rotating machinery using im- proved adaptive redundant lifting multiwavelet 显示文摘 | CHEN Jinglong ZI Yanyang HE Zhengjia | 2013 | Me- chanical Systems and Signal Processing2013，38，1： | 1 |
| 18 | Claw-shaped flexible and low-impedance conductive polymer electrodes for EEG recordings: Anemone dry electrode显示文摘Electroencephalogram(EEG) signals provide important brain information in healthcare settings. Wet electrodes have several limitations, including their time-consuming preparation and no long-term acquisition, and dry electrodes have become a promising candidate. However, dry electrodes face several challenges related to signal quality, comfort, conductivity and cost.This study aims to develop and evaluate a novel dry electrode for EEG recordings. The electrode material properties are characterized by electrochemical, mechanical force, and skin measurements. The electrode performance is evaluated by comparing the impedance, signal-to-noise ratio(SNR), and EEG signal features of the proposed electrode with those of a wet electrode and two commercial dry electrodes. The dry electrode design is based on the biological structure of the sea anemone and demonstrates an improved scalp fit and reduced signal noise and motion artifacts. The electrode materials include advanced conducting polymers combined with thermoplastic elastomers(TPEs) and carbon nanotubes(CNTs), which exhibit good electrical conductivity, mechanical properties, and safety. A low-cost injection molding fabrication method is proposed. The dry electrodes show a scalp contact impedance of 7 kΩ at 20 Hz, which is lower than that of wet and commercial dry electrodes.Resting-state EEG and event-related potential signals collected by the anemone dry electrode achieved more than 90% similarity with signals acquired by wet electrodes. Thus, a low-cost, comfortable anemone dry electrode that exhibits excellent EEG recording performance is presented. The anemone dry electrode represents an important technological advance in material and structural design for EEG recording sensors. | SHI ZhongYan JIANG Bo LIANG ShiChao ZHANG JiangTao SUO DingJie WU JingLong CHEN DuanDuan PEI GuangYing YAN TianYi | 2023 | Science China(Technological Sciences)2023，66，1： | 1 |
| 19 | Weakly-coupled mode division multiplexing over conventional multi-mode fiber with intensity modulation and direct detection显示文摘Multi-mode fiber(MMF)links are expected to greatly enhance capacity to cope with rapidly increasing data traffic in optical short-reach systems and networks.Recently,mode division multiplexing(MDM)over MMF has been proposed,in which different modes in MMF are utilized as spatial channels for data transmission.Stronglycoupled MDM techniques utilizing coherent detection and multiplex-input-multiplex-output(MIMO)digital signal processing(DSP)are complex and expensive for shortreach transmission.So the weakly-coupled approach by significantly suppressing mode coupling in the fiber and optical components has been proposed.In this way,the signals in each mode can be independently transmitted and received using conventional intensity modulation and direct detection(IM-DD).In this paper,we elaborate the key technologies to realize weakly-coupled MDM transmission over conventional MMF,including mode characteristic in MMF and weakly-coupled mode multiplexer/ demultiplexer(MUX/DEMUX).We also present the upto-date experimental results for weakly-coupled MDM transmission over conventional OM3 MMF.We show that weakly-coupled MDM scheme is promising for high-speed optical interconnections and bandwidth upgrade of already-deployed MMF links. | Juhao LI Zhongying WU Dawei GE Jinglong ZHU Yu TIAN Yichi ZHANG Jinyi YU Zhengbin LI Zhangyuan CHEN Yongqi HE | 2019 | Frontiers of Optoelectronics2019，12，1： | 1 |
| 20 | Adaptive redundant multiwavelet denoising with improved neighboring coefficients for gearbox fault detection显示文摘 | Chen Jinglong Zi Yanyang He Zhengjia | 2013 | Mechanical Systems and Signal Processing2013，38，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员