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| 1 | Rainfall Microphysical Properties of Landfalling Typhoon Yagi(201814)Based on the Observations of Micro Rain Radar and Cloud Radar in Shandong,China显示文摘The development and evolution of precipitation microphysical parameters and the vertical structure characteristics associated with Typhoon Yagi(201814)are analyzed in the city of Jinan,Shandong Province based primarily on the observations of a micro rain radar(MRR),a cloud radar,and a disdrometer.The precipitation process is further subdivided into four types:convective,stratiform,mixed,and light precipitation according to the ground disdrometer data,which is in agreement with the vertical profile of the radar reflectivity detected by the MRR.Vertical winds may be the main source of MRR retrieval error during convective precipitation.Convective precipitation has the shortest duration but makes the largest contribution to the cumulative precipitation.Collision-coalescence is the main microphysical process of stratiform precipitation and light precipitation below the bright band observed by the MRR.It is worth noting that as Typhoon Yagi(201814)transformed into an extratropical cyclone,its raindrop size distributions no longer had the characteristics of maritime precipitation,but become more typical of the characteristic of continental precipitation,which represents a very different raindrop size distribution from that which is normally observed in a landfalling typhoon. | Hong WANG Wenqing WANG Jun WANG Dianli GONG Dianguo ZHANG Ling ZHANG Qiuchen ZHANG | 2021 | Advances in Atmospheric Sciences2021，38，6： | 6 |
| 2 | Large-area growth of ultra-high-density single-walled carbon nanotube arrays on sapphire surface显示文摘获得高密度的、大区域的围单人赛的碳 nanotube (SWNT ) 的可伸缩的途径穿的 A 为在实际电子设备认识到 SWNT 的完整的潜力是必要的;这仍然是大挑战。这里,我们由联合特洛伊催化剂在蓝宝石表面上为 ultra-high-density SWNT 数组的大区域的生长报导一个改进合成方法(免除了底层,保证超离频密度) 与瞬间 nanoparticles (在表面上装载了,稳定释放特洛伊催化剂) 作为合作催化剂。稠密、非常排列的 SWNT 盖住全部底层,本地密度象 160 tubes/m 一样高。在如此的数组上造的地效果晶体管(联邦货物税) 在排水管来源电压给了 488 A/m 的产量电流密度(V ds )= 门来源电压(V gs )=2 V,相应于在传导力上每 244 S/m 的宽度。这些结果在 SWNT 的控制结构的生长证实特洛伊瞬间催化剂的潜在的应用的宽范围。 | Lixing Kang Yue Hu Hua Zhong Jia Si Shuchen Zhang Qiuchen Zhao Jingjing Lin Qingwen Li Zhiyong Zhang Lianmao Peng Jin Zhang | 2015 | Nano Research2015，8，11： | 5 |
| 3 | ISAR cross-range scaling based on the MUSIC technique显示文摘Cross-range scaling plays an important role in the inverse synthetic aperture radar(ISAR) imaging. Many of the published cross-range scaling algorithms are based on the fast Fourier transformation(FFT). However, the FFT technique is resolution limited, so that the FFT-based algorithms will fail in the rotation velocity(RV) estimation of the slow rotation target. In this paper,we propose an accurate cross-range scaling algorithm based on the multiple signal classification(MUSIC) method. We first select some range bins with the mono-component linear frequency modulated(LFM) signal model. Then, we dechirp the signal of each selected range bin into the form of sinusoidal signal, and utilize the super-resolution MUSIC technique to accurately estimate the frequency. After processing all the range bins, a linear relationship related to the RV can be obtained. Eventually, the ISAR image can be scaled. The proposal can precisely estimate the small RV of the slow rotation target with low computational complexity. Furthermore, the proposal can also be used in the case of cross-range scaling for the sparse aperture data. Experimental results with the simulated and raw data validate the superiority of the novel method. | LIU Qiuchen WANG Yong ZHANG Qingxiang | 2020 | Journal of Systems Engineering and Electronics2020，31，5： | 2 |
| 4 | MiR-181a enhances drug sensitivity in mitoxantone-resistant breast cancer cells by targeting breast cancer resistance protein (BCRP/ABCG2)显示文摘 | Xuyang Jiao Lin Zhao Mengtao Ma Xuefeng Bai Miao He Yuanyuan Yan Yan Wang Qiuchen Chen Xinnan Zhao Mingyi Zhou Zeshi Cui Zhihong Zheng Enhua Wang Minjie Wei | 2013 | Breast Cancer Research and Treatment2013，，3： | 1 |
| 5 | Rhodamine 6G-based Chemosensor for the Visual Detection of Cu2+ and Fluorescent Detection of Hg2+ in Water显示文摘 | HE Song LIU Qiuchen LI Yuanyuan WEI Fangfang CAI Songtao LU Yan ZENG Xianshun | 2014 | Chemical Research in Chinese Universities2014，30，1： | 1 |
| 6 | Analysis of a long-lasting haze episode in Nanjing, China显示文摘 | Hanqing Kang Bin Zhu Jifeng Su Honglei Wang Qiuchen Zhang Fei Wang | 2013 | Atmospheric Research2013，，： | 1 |
| 7 | Evaluation of injuries caused by coronavirus disease 2019 using multi-nuclei magnetic resonance imaging显示文摘The ongoing pandemic of coronavirus disease 2019(COVID-19)has been a great burden for the healthcare system in many countries because of its high transmissibility,severity,and fatality.Chest radiography and computed tomography(CT)play a vital role in the diagnosis,detection of complications,and prognostication of COVID-19.Additionally,magnetic resonance imaging(MRI),especially multi-nuclei MRI,is another important imaging technique for disease diagnosis because of its good soft tissue contrast and the ability to conduct structural and functional imaging,which has also been used to evaluate COVID-19-related organ injuries in previous studies.Herein,we briefly reviewed the recent research on multi-nuclei MRI for evaluating injuries caused by COVID-19 and the clinical 1 H MRI techniques and their applications for assessing injuries in lungs,brain,and heart.Moreover,the emerging hyperpolarized 129Xe gas MRI and its applications in the evaluation of pulmonary structures and functional abnormalities caused by COVID-19 were also reviewed. | Qian Zhou Qiuchen Rao Haidong Li Ming Zhang Xiuchao Zhao Lei Shi Chaohui Ye Xin Zhou | 2021 | Magnetic Resonance Letters2021，1，1： | 1 |
| 8 | Hepatitis C Virus Infection of Neuroepithelioma Cell Lines显示文摘 | Nicola F. Fletcher Jian Ping Yang Michelle J. Farquhar Ke Hu Christopher Davis Qiuchen He Kimberly Dowd Stuart C. Ray Sophie E. Krieger Johan Neyts Thomas F. Baumert Peter Balfe Jane A. McKeating Flossie Wong–Staal | 2010 | Gastroenterology2010，，4： | 1 |
| 9 | Analysis of a long-lasting haze episode in Nanjing, China显示文摘 | Hanqing Kang Bin Zhu Jifeng Su Honglei Wang Qiuchen Zhang Fei Wang | 2013 | Atmospheric Research2013，，： | 1 |
| 10 | Large-area flexible and transparent UV photodetector based on cross-linked Ag NW@ZnO NRs with high performance显示文摘A series of large-area,flexible and transparent ultraviolet(UV)photodetectors(PDs)based on Ag nanowire(NW)@ZnO nanorods(NRs)are fabricated by an inexpensive,facile and effective approach.These Ag NW@ZnO NRs are successfully synthesized using a two-step method in an oil bath with a high surface-to-volume ratio and good crystallinity.The PDs are fabricated by drop-coating with different drop-coating times on the surface of polyethylene terephthalate(PET)coupled with Au electrodes.By optimizing the cross-linked network of Ag NW@ZnO NRs,PD2 with a size greater than 25 mm exhibits excellent photoresponse under UV light illumination of 365 nm(1.3 m W cm^(-2))with a bias of 5 V:a high sensitivity of over 10^(3),and a much shorter rise/decay time of 2.6 s/2.3 s.Simultaneously,the detector exhibits an average transmittance of more than 70%in the visible light region,as well as good flexibility and excellent mechanical stability under a bending angle of 120°over 1000 circles bending.These integral advantages have significant potential for practical applications and mass production. | Lin Zhang Nuomei Li Qiuchen Ma Jiahui Ding Chuang Chen Zhaocheng Hu Weiwei Zhao Yufeng Li Huanhuan Feng Mingyu Li Hongjun Ji | 2022 | Journal of Materials Science & Technology2022，，15： | 1 |
| 11 | A Hierarchical Connection Graph Algorithm for Gable-roof Detection in Aerial Image显示文摘 | WANG Qiuchen JIANG Zhiguo YANG Junli | 2011 | IEEE Geoscience and Remote Sensing Letters2011，8，1： | 1 |
| 12 | Upgrading Siberian(Russia)crude oil by hydrodesulfurization in a slurry reactor:A kinetic study显示文摘Hydrodesulfurization(HDS)of sour crude oil is an effective way to address the corrosion problems in refineries,and is an economic way to process sour crude oil in an existing refinery built for sweet oil.In the current study,the HDS of Siberian crude oil was carried out in a slurry reactor.The Co-Mo,Ni-Mo,and Ni-W catalysts supported onγ-Al2O3 were compared at the temperature of 340℃ and the pressure of 4.5 MPa.The HDS activity follows the order of Co-Mo N Ni-Mo N Ni-Wat a high concentration of H2S,and the difference between Co-Mo and Ni-Mo becomes insignificant at a low concentration of H2S.The influence of reaction temperature 320-360℃ and reaction pressure 3-5.5 MPa was investigated,and both play a positive role in the HDS reaction.A kinetic model over Ni-Mo/Al2O3 in the slurry reactor was established.The activation energy is estimated as 60.34 kJ·mol−1;the orders of sulfur components and hydrogen partial pressure are 1.43 and 1.30,respectively.The kinetic parameters are compared with those in a trickle-bed reactor,implying that the mass transfer is greatly enhanced in the slurry reactor.The back mixing effect is present in the slurry reactor and can be reduced by a multi-stage design,which would lead to higher reactor efficiency in industrial application. | Kening Sun Xixi Ma Qiuchen Yang Rui Qiu Ruijun Hou | 2020 | Chinese Journal of Chemical Engineering2020，28，12： | 1 |
| 13 | Application of gravity inversion focused in Changbai Mountain显示文摘Focusing inversion is accomplished by the iterative of abnormal source to make the image gradually focused. It can better reflect the underground geological geometry and physical parameters. The model experiments in the study show that gravity focusing inversion allows inversion image stabilization and polymerization,which solves the multiple solutions and instability of inversion and so on. The method is applied to measured gravity data processing of certain region of Changbai Mountain,compared to Euler deconvolution,the results show that the method for determining the horizontal position and depth of underground anomalies has good efforts. | LI Qiuchen WU Yangang | 2014 | Global Geology2014，17，1： | 1 |
| 14 | A simple strategy for constructing acylhydrazone photochromic system with visible color/emission change and its application in photo-patterning显示文摘As a potential photochromic system,acylhydrazones exhibit many outstanding adva ntages including low cost,simple synthesis and high modifiability compared with some classic photochromic systems.However,the absorption wavelengths of acylhydrazones usually locate in ultraviolet regio n,which makes the band separation between the absorbance maxima of its irradiated and unirradiated forms cannot be observed by naked eyes and greatly limits their practical applications.In this work,a simple strategy for constructing acylhydrazone photochromic system with visible color/emission change is provided.Rhodamine 6 G hydrazine-2-aldehyde-pyridine Schiff base(compound 3)is designed and synthesized by combining acylhydrazone with Rhodamine 6 G structure.The introduction of Rhodamine 6 G moiety to 3 not only makes it remain all the advantages of acylhydrazone photochromic system but also exhibits visible photo-induced color/emission changes both in solution and in a solid matrix.Moreover,3 exhibits reversible photochromic property with good fatigue re sistance,which makes it an excellent candidate for p hoto-patterning. | Yuanyuan Liu Qiuchen Peng Yuanyuan Li Hongwei Hou Kai Li | 2020 | Chinese Chemical Letters2020，31，12： | 1 |
| 15 | Virtual fire drill system supporting co-located collaboration显示文摘Background Due to the restriction of display mode,in most of the virtual reality systems with multiple people in the same physical space,the program renders the scene based on the position and perspective of the one user,so that other users just see the same scene,resulting in vision disorder.Methods To improve experience of multi-user co-located collaboration,in this study,we propose a fire drill system supporting co-located collaboration,in which three co-located users can collaborate to complete the virtual firefighting mission.Firstly,with multi-view stereoscopic projective display technology and ultra wideband(UWB)technology,co-located users can roam independently and watch virtual scenes through the correct perspective view based on their own position by wearing dedicated shutter glasses,thus carrying out different virtual tasks,which improves the flexibility of co-located collaboration.Secondly,we design simulated firefighting water-gun using the micro-electromechanical system sensor,through which users can interact with virtual environment,and thus provide a better interactive experience.Finally,we develop a workbench including a holographic display module and multi touch operation module for virtual scene assembly and virtual environment control.Results The controller can use the workbench to adjust the virtual layout in real time,and control the virtual task process to increase the flexibility and playability of system.Conclusions Our work can be employed in a wide range of related virtual reality applications. | Yuan WEI Dongdong GUAN Qiuchen WANG Xiangxian LI Yulong BIAN Pu QIN Yanning XU Chenglei YANG | 2019 | Virtual Reality & Intelligent Hardware2019，1，3： | 1 |
| 16 | AIE Ligand Constructed Zn(Ⅱ)Complex with Reversible Photo-induced Color and Emission Changes显示文摘Fluoran salicylaldehyde hydrazone metal complex(FSHMC)is a kind of recently reported photo-responsive system,which has the advantages of simple synthesis,multiple colors as well as distinct color change before and after UV light irradiation.However,the emission property of FSHMC is relatively unitary.In solid state,especially,only fluorescence quench is induced after UV light irradiation,which limits their applications.In this work,a typical aggregation-induced emission(AIE)moiety of tetraphenylethene(TPE)was introduced to the design of FSHMC.The obtained FSHMC,2-Zn,exhibited reversible color and fluorescence changes upon UV light irradiation.Due to the AIE feature of compound 2,2-Zn exhibited different emission changes upon UV light irradiation in THF and in solid matrix,because of the fluorescence resonance energy transfer(FRET)process from TPE moiety to rhodamine B moiety. | QIN Yujing PENG Qiuchen CHEN Fang LIU Yuanyuan LI Kai ZANG Shuangquan | 2021 | Chemical Research in Chinese Universities2021，37，1： | 0 |
| 17 | Insights into the synergistic promotion of spin polarization over C_(3)N_(5.4) for enhancing cooperative hydrogen evolution and benzylamine oxidation coupling显示文摘Polymers are usually restricted on the high exciton binding energies and sluggish electron transfer because of the low dielectric constants.Regulating spin-polarized electrons is regarded as an attractive strategy,but often confined to the d-orbital elements.Here,the nonmetal P and N elements co-mediated the spin polarization of carbon nitrides(PCN)have been elaborately designed.The optimized PCN-3 shows an outstanding hydrogen production(22.2 mmol·g^(-1)·h^(-1))coupled with selective benzylamine oxidation without using any solvent and cocatalysts,which is 200 times of original C_(3)N_(4)and superior to the photocatalysts has been reported to date.Experimental and theoretical results verified that the spin-orbital coupling of N 2p and P 2p remarkably increased the parallel spin states of charge and reduced the formation of singlet excitons to accelerate exciton dissociation in carbon nitride.In addition,charge separation and surface catalysis can be significantly enhanced by the electron spin polarization of carbon nitride with the parallel arrangement,huge built-in electric field and disturbed electronic structure.Our finding deepens the insight into the charge separation and exciton dissociation in spin polarization,and offers new tactics to develop high-efficiency catalysts. | Qiuchen Wang Xiaoxu Deng Haiyan Pen Fei Liu Meiyang Song Peng Chen Shuang-Feng Yin | 2023 | Nano Research2023，16，4： | 0 |
| 18 | Isolation and Identification and Drug Resistance Analysis of Avian Escherichia coli and In Vitro Competition with Lactobacillus显示文摘[Objective]The paper was to understand the resistance of commonly used clinical antibiotics to avian Escherichia coli and the inhibition of lactobacillus against pathogenic E.coli.[Method]The strain was isolated and identified by SS medium culture,microscope examination,PCR amplification and biochemical test,and the sensitivity of avian E.coli to eight antibiotics was determined by disk diffusion method.Twelve strains of avian E.coli and one strain of lactobacillus were divided into five group using in vitro liquid culture method,namely simultaneous mixed culture group of lactobacillus and E.coli,first colonization group of E.coli,first colonization group of lactobacillus,E.coli control group and lactobacillus control group,for competitive inhibition test between E.coli and lactobacillus.[Result]Totally 34 strains with similar characteristics to E.coli strains were preliminarily screened;the target band amplified by PCR was 293 bp,which was consistent with the expected size.The isolated strain could decompose maltose,sucrose,lactose,glucose,arabinose,mannitol and sorbitol;the nitrate reduction test was positive,while citrate and V-P test was negative,consistent with the biochemical characteristics of E.coli.The resistance rate of the isolates to cefalexin and tylosin was over 65%,and that to enrofloxacin and doxycycline was up to 50%;the isolates were more sensitive to apramycin,tilmicosin,neomycin and colistin,and the total resistance rate was below 15%.The inhibitory effects of mixed culture of lactobacillus and E.coli against E.coli was better than first colonization of lactobacillus at 24 h;the inhibitory effects of first colonization of lactobacillus against E.coli was better than that of mixed culture of lactobacillus and E.coli at 36 h;the inhibitory effects of mixed culture of lactobacillus and E.coli against E.coli was the best at 48 h.[Conclusion]The isolated strains of E.coli were generally resistant to eight commonly used antibiotics.Lactobacillus could inhibit the growth of avian E.coli in vitro,and first colonization of lactobacillus received the best effort. | Li Juan Liu Qiuchen Zhai Hongxu Wang Yehua Jiang Guotuo Lin Yang Liu Yan Shan Chunqiao | 2020 | Animal Husbandry and Feed Science2020，12，1： | 0 |
| 19 | A dynamically stable self-healable wire based on mechanical-electrical coupling显示文摘The rise in wearable electronics has witnessed the advancement of self-healable wires,which are capable of recovering mechanical and electrical properties upon structural damage.However,their highly fluctuating electrical resistances in the range of hundreds to thousands of ohms under dynamic conditions such as bending,pressing,stretching and tremoring may seriously degrade the precision and continuity of the resulting electronic devices,thus severely hindering their wearable applications.Here,we report a new family of self-healable wires with high strengths and stable electrical conductivities under dynamic conditions,inspired by mechanical-electrical coupling of the myelinated axon in nature.Our self-healable wire based on mechanical-electrical coupling between the structural and conductive components has significantly improved the electrical stability under dynamic scenarios,enabling precise monitoring of human health status and daily activities,even in the case of limb tremors from simulated Parkinson’s disease.Our mechanical-electrical coupling strategy opens a new avenue for the development of dynamically stable electrodes and devices toward real-world wearable applications. | Shuo Wang Zhaofeng Ouyang Shitao Geng Yan Wang Xiaoju Zhao Bin Yuan Xiao Zhang Qiuchen Xu Chengqiang Tang Shanshan Tang Han Miao Huisheng Peng Hao Sun | 2024 | National Science Review2024，11，3： | 0 |
| 20 | Clinical application of Aconitum carmichaelii Debx. (Fu Zi in Chinese) by traditional Chinese medicine physicians–A cross-sectional questionnaire survey in Beijing显示文摘Objective:To investigate clinical application of aconite root(Aconitum carmichaelii Debx.;hereinafter“aconite”)by traditional Chinese medicine(TCM)physicians in TCM hospitals in Beijing and explore the specific use of aconite and the effect of different doses on decoction time.Methods:This was a cross-sectional study using two-stage sampling.Questionnaires were administered among TCM physicians from TCM hospitals in Beijing between September 2020 and August 2021.The questionnaire mainly included general demographics,clinical backgrounds of TCM physicians,and clinical application of aconite.The data analyses were performed using SPSS 20.0.Results:A total of 387 questionnaires were collected,of which 385 were valid.Of the 385 participating TCM physicians,331(85.97%)used aconite in clinical practice.The top three medical diagnoses treated with aconite were heart failure,diarrhea without cause,and chronic gastritis.The TCM pattern treated most frequently with a high dose of aconite was spleen-kidney yang deficiency,and the TCM pattern treated most frequently with a low dose was spleen yang deficiency,while spleen-kidney yang deficiency was treated most frequently with a common dose of aconite.The top three common formulas were Sini decoction,Mahuang Xixin Fuzi decoction,and Zhenwu decoction.Hei Shun Pian was the most common herbal pieces of aconite.The highest frequency of the maximum dose of aconite was 15 g,that of the minimum dose was 3 g,and that of the common dose was 10 g.There was a certain correlation between decoction time and the dose of aconite.Most TCM physicians advised their patients to take medicine twice a day.Conclusion:In this study,we refined and quantified the use of aconite and enriched the exploration of the clinical application of aconite besides its provisions in the Pharmacopoeia of the People's Republic of China. | Xiaopeng Zhao Shenglou Ni Ning Liang Qiuchen Huang Zhongyi Pan Lin Zhang Jia Song Yanling Fu | 2021 | Journal of Traditional Chinese Medical Sciences2021，8，4： | 0 |
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