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27篇 您的检索式:作者名="BokuN"
    题名 作者 年代 出处 被引量
1Effect of dilution holes on the performance of a triple swirler combustor显示文摘A triple swirler combustor is considered to be a promising solution for future high temperature rise combustors. The present paper aims to study dilution holes including primary dilution holes and secondary dilution holes on the performance of a triple swirler combustor. Experimental investigations are conducted at different inlet airflow velocities(40–70 m/s) and combustor overall fuel–air ratio with fixed inlet airflow temperature(473 K) and atmospheric pressure. The experimental results show that the ignition is very difficult with specific performance of high ignition fuel–air ratio when the primary dilution holes are located 0.6H(where H is the liner dome height)downstream the dome, while the other four cases have almost the same ignition performance. The position of primary dilution holes has an effect on lean blowout stability and has a large influence on combustion efficiency. The combustion efficiency is the highest when the primary dilution holes are placed 0.9H downstream the dome among the five different locations.For the secondary dilution holes, the pattern factor of Design A is better than that of Design B.Ding Guoyu He Xiaomin Zhao Ziqiang An Bokun Song Yaoyu Zhu Yixiao 2014Chinese Journal of Aeronautics2014,27,6:13
2Global absorption center map of the mafic minerals on the Moon as viewed by CE-1 IIM data显示文摘Determining the global distribution of minerals on the Moon has been an important goal of lunar science. Hyperspectral remote sensing is an important approach to acquiring minerals on the Moon on the global scale. The wavelength of the absorption band center is the key parameter for identifying minerals with reflectance spectra as well as remote sensing data. The global absorption center map of the mafic minerals of the Moon was produced for the first time with the Chang’E-1 IIM data. This map shows the global distribution of mafic minerals such as orthopyroxenes, clinopyroxenes, and olivine and even plagioclase feldspar of the Moon. The validation for some representative areas indicates that the global map is reliable and even more detailed than the results derived from Clementine-data. Moreover, our method is insensitive to the topography and viewing and illumination geometries. The global absorption band center map not only contributes to the lunar science research, but also has other implications to be further studied. Moreover, the preprocessing methods such as calibration and correction introduced in this study can be useful in other research with IIM data.WU YunZhao 1,4* , ZHANG Xia 2 , YAN BoKun 3 , GAN FuPing 3 , TANG ZeSheng 4 , XU AoAo 4 , ZHENG YongChun 5 & ZOU YongLiao 5 1 School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China 2 Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China 3 Institute for Remote Sensing Method, China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China 4 Collaborative Research Laboratory on Lunar and Planetary Exploration, Macao University of Science and Technology, Taipa, Macao, China 5 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2010Science China(Physics,Mechanics & Astronomy)2010,53,12:11
3Acidity of Aerosols during Winter Heavy Haze Events in Beijing and Gucheng, China显示文摘We investigated the acidity and concentrations of water-soluble ions in PM_(2.5) aerosol samples collected from an urban site in Beijing and a rural site in Gucheng, Hebei Province from November 2016 to January 2017 to gain an insight into the formation of secondary inorganic species. The average SO_4^(2–), NO_3~–, and NH_4^+ concentrations were 8.3,12.5, and 14.1 μg m^(–3), respectively, at the urban site and 14.0, 14.2, and 24.2 μg m^(–3), respectively, at the rural site.The nitrogen and sulfur oxidation ratios in urban Beijing were correlated with relative humidity(with correlation coefficient r = 0.79 and 0.67, respectively) and the aerosol loadings. Based on a parameterization model, we found that the rate constant of the heterogeneous reactions for SO_2 on polluted days was about 10 times higher than that on clear days, suggesting that the heterogeneous reactions in the aerosol water played an essential role in haze events.The ISORROPIA II model was used to predict the aerosol pH, which had a mean(range) of 5.0(4.9–5.2) and 5.3(4.6–6.3) at the urban and rural site, respectively. Under the conditions with this predicted pH value, oxidation by dissolved NO_2 and the hydrolysis of N_2O_5 may be the major heterogeneous reactions forming SO_4^(2–) and NO_3~– in haze.We also analyzed the sensitivity of the aerosol p H to changes in the concentrations of SO_4^(2–), NO_3~–, and NH_4^+ under haze conditions. The aerosol p H was more sensitive to the SO_4^(2–) and NH_4^+ concentrations with opposing trends, than to the NO_3~– concentrations. The sensitivity of the p H was relatively weak overall, which was attributed to the buffering effect of NH_3 partitioning.Xiyuan CHI Pengzhen HE Zhuang JIANG Xiawei YU Fange YUE Longquan WANG Bokun LI Hui KANG Cheng LIU Zhouqing XIE 2018Journal of Meteorological Research2018,32,1:4
4Transparent conductive oxide-gated silicon microring with extreme resonance wavelength tunability显示文摘Transparent conductive oxides have attracted escalating research interest for integrated photonic devices and metasurfaces due to the extremely large electro-optic modulation of the refractive index by the free-carrier-induced plasma dispersion effect. In this paper, we have designed and fabricated a silicon microring resonator using an indium-tin oxide gate as the electric-tuning electrode. It achieved an ultralarge resonance wavelength tunability of 271 pm/V, which is obtained through the reduced width of the ring waveguide and a high-dielectric-constant Hf O2 insulator. We demonstrated a broad resonance wavelength tuning range of over 2 nm with an ultrafast response time of less than 12 ns and near-zero static power consumption, which outperforms traditional thermal tuning.ERWEN LI BEHZAD ASHRAFI NIA BOKUN ZHOU ALAN X.WANG 2019Photonics Research2019,7,4:2
5Detection of free cancer cells in peritoneal cavity in patients surgically treated for gastric adenocarcinoma 显示文摘Kostic Z Cuk V Bokun R 2006Vojnosanit Pregl2006,63,4:1
6Modification of the proton conducting membranes of MF-4SC with a carbon phase via gamma-initiated graft polymerization of vinyliden chloride显示文摘Emil F. Abdrashitov Veslav Ch. Bokun Yury A. Dobrovolsky Dina A. Kritskaya Evgeny A. Sanginov Ardalion N. Ponomarev 2010Solid State Ionics2010,,1:1
7Cytologic characteristics of cerebrospinal fluid in patients with serous meningitis caused by enteroviruses, mumps virus or Koch, Sbacillus显示文摘Tatomirovic Z Bokun R Trajkovic Z 1995Vojnosanit Pregl1995,52,4:1
8Semiquantitative cytochemical estimation of glucose- 6- phosphate dehydrogenase activity in benign diseases and carcinoma of the breast 显示文摘Bokun R Bakotin J Milasinovic D 1987Acta Cytol1987,31,3:1
9Modification of the proton conducting membranes of MF-4SC with a carbon phasevia gamma-initiated graft polymerization of vinyliden chloride显示文摘Abdrashitova E F Bokun V C Dobrovolsky A 2011Solid State Ionics2011,188,1:1
10Cytologic characteristics of cerebrospinal fluid in patients with serous meningitis caused by enteroviruses, mumps virus or Koch,s bacillus显示文摘TATOMIROVIC Z BOKUN R TRAJKOVIC Z 1995Vojnosanit Pregl1995,52,4:1
11Phase Ⅱ study of acombination of irinotecan and cisplatin agains tmetastutic gastric cancer显示文摘BokuN OhtsuA Shimada Y Journal of Clinical Oncology0,,:1
12A Mechanism for Syn collisional Rock Exhumation and Associated Normal Faulting: Results from Physical Modelling显示文摘Chemenda A I Mattauer M Malavieille J and Bokun A N 1995Earth and Planetary Science Letters1995,132,:1
13Continental subduction and a mechanism for exhumation of high-pressure metamorphic rocks: New modeling and field data from Oman 显示文摘Chemenda A I Mattauer M Bokun A N 1996Earth and Planetary Science Letters1996,143,:1
14Strain partitioning and interplate friction in oblique subduction zones constraints provided by experimental modeling显示文摘Chemenda A Lallemand S Bokun A 2000Journal of Geophysical Research B Solid Earth and Planets2000,105,3:1
15Characterization of field-effect mobility at optical frequency by microring resonators显示文摘A novel characterization method is proposed to extract the optical frequency field-effect mobility(μ_(op,FE))of transparent conductive oxide(TCO)materials by a tunable silicon microring resonator with a heterogeneously integrated titanium-doped indium oxide(ITiO)/SiO_(2)/silicon metal–oxide–semiconductor(MOS)capacitor.By operating the microring in the accumulation mode,the quality factor and resonance wavelength shift are measured and subsequently used to derive the��op,FE in the ultra-thin accumulation layer.Experimental results demonstrate that the μ_(op,FE) of ITiO increases from 25.3 to 38.4 cm2⋅V^(−1)⋅s^(−1) with increasing gate voltages,which shows a similar trend as that at the electric frequency.Wei-Che Hsu Erwen Li Bokun Zhou Alan X.Wang 2021Photonics Research2021,9,4:1
16Detection of free cancer cells in peritoneal cavity in patients surgically treated for gastric adenoeareinoma显示文摘Kostic Z Cuk V Bokun R 2006Vojnosanit Pregl2006,63,4:1
17Prior-guided GAN-based interactive airplane engine damage image augmentation method显示文摘Deep learning-based methods have achieved remarkable success in object detection,but this success requires the availability of a large number of training images.Collecting sufficient training images is difficult in detecting damages of airplane engines.Directly augmenting images by rotation,flipping,and random cropping cannot further improve the generalization ability of existing deep models.We propose an interactive augmentation method for airplane engine damage images using a prior-guided GAN to augment training images.Our method can generate many types of damages on arbitrary image regions according to the strokes of users.The proposed model consists of a prior network and a GAN.The Prior network generates a shape prior vector,which is used to encode the information of user strokes.The GAN takes the shape prior vector and random noise vectors to generate candidate damages.Final damages are pasted on the given positions of background images with an improved Poisson fusion.We compare the proposed method with traditional data augmentation methods by training airplane engine damage detectors with state-ofthe-art object detectors,namely,Mask R-CNN,SSD,and YOLO v5.Experimental results show that training with images generated by our proposed data augmentation method achieves a better detection performance than that by traditional data augmentation methods.Rui HUANG Bokun DUAN Yuxiang ZHANG Wei FAN 2022Chinese Journal of Aeronautics2022,35,10:1
18Multicenter phase Ⅱ study of everolimus in patients with previously treated metastatic gastric cancer显示文摘DoiT MuroK BokuN 2010J Clin Oncol2010,28,11:1
19Role of radiotherapy in combined therapy of soft tissue sarcoma in children and adolescents显示文摘Golubicic I Nikitovic M Bokun J 2000Srp Arh Celok Lek2000,128,56:1
20Continental subduction and a mechanism for exhumation of high-pressure metamorphic rocks: New modeling and field data from Oman 显示文摘Chemenda A I Mattauer M Bokun A N 1996Earth and Planetary Science Letters1996,143,:1
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