|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Real-time Health Condition Evaluation on Wind Turbines Based on Operational Condition Recognition显示文摘针对大型风电机组运行工况和状态信息复杂,健康状态难以准确评价的问题,提出基于工况辨识的健康状态实时评价方法。该方法充分考虑机组运行工况的复杂性和多变性,采用工况辨识实现运行工况空间的划分。在各运行工况子空间,建立基于高斯混合模型(gaussianmixturemodel,GMM)多状态特征融合的健康状态评价模型。采用健康衰退指数(healthdegradationindex,HDI)作为机组健康状态评价指标,并给出健康衰退报警限的确定方法。该方法用于某1.5MW风电机组传动系统故障前的健康状态评价。结果表明,该方法提前监测到机组健康状态的衰退趋势,可实现故障的早期预报,避免严重故障发生,并为合理调整运行和安排维修提供依据。 | DONG Yuliang LI Yaqiong CAO Haibin HE Chengbing GU Yujiong | 2013 | 中国电机工程学报2013,33,11: | 12 |
| 2 | Distribution characteristics of seamount cobalt-rich ferromanganese crusts and the determination of the size of areas for exploration and exploitation显示文摘In 2001,the International Seabed Authority (ISBA) initiated the consideration relating to the Regulations for Prospecting and Exploration for Hydrothermal Polymetallic Sulphides and Cobalt-rich Ferromanganese Crusts in the Area at its 7th session.Since then,the consideration of the Regulations has been mainly focused on the size of areas to be allocated for exploration and exploitation of the crusts.This paper,based on the investigation data and the analysis of the distribution characteristics of the crusts,suggests a model for determining the size of areas for exploration and exploitation of the crusts,taking into account various factors such as production scale,crust thickness and grade,mineable area proportion,recovery efficiency,exploration venture,and so on.Through the modeling, the paper suggests that the exploration area (the area covered by each application for approval of a plan of work for exploration of cobalt-rich crusts) shall be 4 856 km 2 and the exploitation area (the mine site area) shall be 1 214 km 2,for 20 years of 1 million wet tonnes annual production. | HE Gaowen MA Weilin SONG Chengbing YANG Shengxiong ZHU Benduo YAO Huiqiang JIANG Xunxiong CHENG Yongshou | 2011 | Acta Oceanologica Sinica2011,30,3: | 9 |
| 3 | Growth of a polymetallic nodule from northwestern continental margin of the South China Sea and its response to changes in paleoceanographical environment of the late Cenozoic显示文摘In the northern South China Sea,the accumulation of enormous quantities of terrigenous sediment during Cenozoic rendered well-developed polymetallic nodules very rare.In this study,we analyzed a polymetallic nodule from the northwestern continental margin of the South China Sea using microscopic mineralogical observation,electron probes,X-ray diffraction(XRD),ICP-MS,and Be isotope dating.We found the nodule's shell layers rich in different types of microstructures,including columnar,laminar,stack-like,petal-like,and porphyritic structures.The major mineral components of the nodule are MnO2.Unlike nodules from the eastern Pacific basin,this nodule has high contents in Fe,Si,Al,and REEs but low contents in Mn,Cu,Co,and Ni.The Mn/Fe ratio is also low and the average REEs content is 1370.4 ppm.There is a strong positive anomaly of Ce;and the Be(beryllium) isotope dating shows the initial time of growth of the nodule to be about 3.29 Ma.The inner compact layer formed from 3.29 Ma to about 1.83 Ma.The laminar and stack-like structures and the low contents of the terrigenous elements such as Fe,Si,REE,and Al indicate the paleoceanographical environment with weak undersea currents and favorable oxidizing conditions.From 1.83 Ma to 0.73 Ma,the growth rate of the nodule increased by about 3%;the microstructures formed during this period are stack-like and columnar.The contents of Si and Al are increased by nearly 10%,indicating an increase of terrigenous sediment input in the northern South China Sea.The content of Ce is decreased by about 16%,indicating a significant weakening of the oxidizing conditions at the seabed.From 0.73 Ma to 0.69 Ma,the growth rate of the nodule rapidly rose up to 8.27 times that of the nodule's average growth rate,and the contents of Fe,Al,and REEs in the layer also increased,forming a loose layer characterized by oolitic,granular,porphyritic,and petal-like structures,indicating the paleoceanographical environment with a high sedimemtation rate and abundant supply of terrigenous sediment in the northern South China Sea.From 0.69 Ma to 0.22 Ma,the growth rate of the nodule suddenly slowed and the outer compact layer formed.Contents of Fe,Si,REE,Al,Mn,Cu,Co,and Ni in this layer were significantly lower than in other layers.The main structures of the layer are laminar and fissure filling structures.These reflect the paleoceanographical environment with stable undersea currents,poor oxidizing conditions,and other conditions not conducive to nodule growth.The growth process of nodule S04-1DG-1 was found to respond sensitively to the changes of the paleoceanographical environment of the northern South China Sea during the late Cenozoic. | ZHANG ZhenGuo DU YuanSheng WU ChangHang FANG NianQiao YANG ShengXiong LIU Jian SONG ChengBing | 2013 | Science China Earth Sciences2013,56,3: | 5 |
| 4 | MRF model and FRAME model-based unsupervised image segmentation显示文摘This paper presents a method for unsupervised segmentation of images consisting of multiple textures. The images under study are modeled by a proposed hierarchical random field model, which has two layers. The first layer is modeled as a Markov Random Field (MRF) representing an unobservable region image and the second layer uses 'Filters, Random and Maximum Entropy (Abb. FRAME)' model to represent multiple textures which cover each region. Compared with the traditional Hierarchical Markov Random Field (HMRF), the FRAME can use a bigger neighborhood system and model more complex patterns. The segmentation problem is formulated as Maximum a Posteriori (MAP) estimation according to the Bayesian rule. The iterated conditional modes (ICM) algorithm is carried out to find the solution of the MAP estimation. An algorithm based on the local entropy rate is proposed to simplify the estimation of the parameters of MRF. The parameters of FRAME are estimated by the ExpectationMaximum (EM) algorithm. Finally, an experiment with synthesized and real images is given, which shows that the method can segment images with complex textures efficiently and is robust to noise. | CHENGBing WANGYing ZHENGNanning JIAXinchun | 2004 | Science in China(Series F)2004,47,6: | 4 |
| 5 | Multi-Channel Iterative FDE for Single Carrier Block Transmission over Underwater Acoustic Channels显示文摘Recently, single carrier block transmission(SCBT) has received much attention in high-rate phase-coherent underwater acoustic communication.However,minimum-mean-square-error(MMSE) linear FDE may suffer performance loss in the severely time dispersive underwater acoustic channel. To combat the channel distortion, a novel multi-channel receiver with maximum ratio combining and a low complex T/4 fractional iterative frequency domain equalization(FDE) is investigated to improve diversity gain and the bit error rate(BER) performance. The proposed method has been verified by the real data from a lake underwater acoustic communication test in November 2011. At 1.8 km, the useful data rates are around 1500 and 3000 bits/s for BPSK and QPSK respectively. The results show the improvements of system performance. Compared with MMSE FDE system, the output SNR improvement is 6.9 d B, and the BER is from 10-3 to no error bits for BPSK. The output SNR improvement is 5.3 d B, and the BER is from 1.91×10-2 to 2.2×10-4for QPSK. | HE Chengbing HUO Siyu ZHANG Qunfei WANG Han HUANG Jianguo | 2015 | China Communications2015,12,8: | 3 |
| 6 | Two-dimensional polymer nanosheets for efficient energy storage and conversion显示文摘As a promising graphene analogue,two-dimensional(2D)polymer nanosheets with unique 2D features,diversified topological structures and as well as tunable electronic properties,have received extensive attention in recent years.Here in this review,we summarized the recent research progress in the preparation methods of 2D polymer nanosheets,mainly including interfacial polymerization and solution polymerization.We also discussed the recent research advancements of 2D polymer nanosheets in the fields of energy storage and conversion applications,such as batteries,supercapacitors,electrocatalysis and photocatalysis.Finally,on the basis of their current development,we put forward the existing challenges and some personal perspectives. | Yumei Ren Chengbing Yu Zhonghui Chen Yuxi Xu | 2021 | Nano Research2021,14,6: | 3 |
| 7 | M-ary CDMA multiuser underwater acoustic communication and its experimental results显示文摘A novel M-ary code division multiple access (M-ary CDMA) underwater acoustic communication (UAC) that utilizes quasi-orthogonal sequences has been proposed for the multiple mobile unmanned underwater vehicle (UUV).Its performance has been verified in both four-user synchronous and three-user asynchronous scenarios through a lake experiment over a very shallow-water channel.At a chip rate of 2 kilochips per second,good bandwidth efficiency and robust links have been achieved both at 5 and 15 km distances.The performance of M-ary CDMA in mobile condition (3 m/s) is demonstrated by using the recorded lake experimental data. Experimental results show that the proposed scheme is suitable for multi-user communication platform in long-range shallow-water channel with simple receiver algorithms. | HE ChengBing HUANG JianGuo YAN ZhengHua ZHANG QunFei | 2011 | Science China(Information Sciences)2011,54,8: | 3 |
| 8 | China is making significant progress in the nomenclature of international undersea features显示文摘With the arising global awareness of the ocean,relevant countries are competing to name the discovered undersea features at the international seabed areas in recent years.The Sub-Committee on Undersea Feature Names(SCUFN)is a joint organization under the Intergovernmental Oceanographic Commission of United Nations Educational,Scientific and Cultural Organization and | SONG Chengbing ZHOU Yang LUO Yi | 2017 | Acta Oceanologica Sinica2017,36,10: | 2 |
| 9 | Analyses of active faults, seismic activities and sea floor unstable factors of the Zhujiang River Mouth Basin and its adjacent areas显示文摘-On the basis of the data of geophysics and seismic activities, the analyses of the active faults, seismic activities and the sea floor unstable factors of the Zhujiang River Mouth Basin have been made so as to study the characteristics of the compressional subactive continental margin of Cathaysian system, arc littoral strongly active fracture zone, the division of seismic subzone and seismic zone of the continental margin of northern South China Sea, the potential focal area, and to analyze the regional stability. We consider that the Zhujiang River Mouth Basin belongs to a stable or a moderately stable region. | Liu Yixuan, Zhang Yixiang, Zhou Jialun , Xie Yixuan, Lu Chengbing, Zhong Jianqiang and Zhan Wenhuan South China Sea Institute of Oceanology, Academia Sinica, Guangzhou, China | 1990 | Acta Oceanologica Sinica1990,9,3: | 2 |
| 10 | Overexpression of OsSPL9 enhances accumulation of Cu in rice grain and improves its digestibility and metabolism显示文摘Copper(Cu)is an essential trace mineral element for all forms of life,and is an important structural component and co-factor for a variety of metalloenzymes(Pen^a et al.,1999;Bertinato and L'Abbe,2004).In humans,Cu deficiency is not common because of the ubiquitous occurrence of Cu and ease of gastrointestinal absorption(Zidar et al.,1977;Uauy et al.,1998).However,because of the low Cu content in most sources of feed,the use of Cu as a growth promoter to maximize animal production has been well documented in animal feeding(Braude,1945;Lu et al.,2010).Pre- | Mingfeng Tang Chuanshe Zhou Lu Meng Donghai Mao Can Peng Yuxing Zhu Daoyou Huang Zhiliang Tan Caiyan Chen Chengbing Liu Dechun Zhang | 2016 | Journal of Genetics and Genomics2016,43,11: | 2 |
| 11 | Attenuation relations of Arias intensity based on the Chi-Chi Taiwan earthquake data 显示文摘 | HWANGA H LINA C K YEHB Y T CHENGB S N CHENC K C | 2004 | Soil Dynamics and Earthquake Engineering2004,24,7: | 1 |
| 12 | Synthesis and characterization of vanadium(III) and vanadium(IV) polymers containing 3,5-pyrazoledicarboxylato显示文摘 | Hui Chen Chengbing Ma Shengchang Xiang Mingqiang Hu Youtao Si Changneng Chen Qiutian Liu | 2008 | Journal of Coordination Chemistry2008,,22: | 1 |
| 13 | ElectronicstructuresandopticalpropertiesofGa-dopedinZnS[J]显示文摘 | LiJH CuiYS ChenGB | | 原子与分子物理学报0,,: | 1 |
| 14 | Electrochemical cot rosion behaviors of a-C:H and a-C:NX:H films显示文摘 | Zhou Wang Chengbing Wang Qi Wang | 2008 | Applied Surface Science2008,254,10: | 1 |
| 15 | A concurrent engineering approach to the development of a scroll cmnpressor显示文摘 | Jianga Z Chengb K Harrison DK | 2000 | Journal of Materials Proeess- ing Technology2000,107,: | 1 |
| 16 | A monolithically sculpted van der Waals nano-opto-electro-mechanical coupler显示文摘The nano-opto-electro-mechanical systems(NOEMS)are a class of hybrid solid devices that hold promises in both classical and quantum manipulations of the interplay between one or more degrees of freedom in optical,electrical and mechanical modes.To date,studies of NOEMS using van der Waals(vdW)heterostructures are very limited,although vdW materials are known for emerging phenomena such as spin,valley,and topological physics.Here,we devise a universal method to easily and robustly fabricate vdW heterostructures into an architecture that hosts opto-electro-mechanical couplings in one single device.We demonstrated several functionalities,including nano-mechanical resonator,vacuum channel diodes,and ultrafast thermo-radiator,using monolithically sculpted graphene NOEMS as a platform.Optical readout of electric and magnetic field tuning of mechanical resonance in a CrOCl/graphene vdW NOEMS is further demonstrated.Our results suggest that the introduction of the vdW heterostructure into the NOEMS family will be of particular potential for the development of novel lab-on-a-chip systems. | Tongyao Zhang Hanwen Wang Xiuxin Xia Ning Yan Xuanzhe Sha Jinqiang Huang Kenji Watanabe Takashi Taniguchi Mengjian Zhu Lei Wang Jiantou Gao Xilong Liang Chengbing Qin Liantuan Xiao Dongming Sun Jing Zhang Zheng Han Xiaoxi Li | 2022 | Light(Science & Applications)2022,11,3: | 1 |
| 17 | EstablishmentofSSRfingerprintmapandgeneticsimi-larityofvarieties(lines)injaponicarice(OryzasativaL)(粳稻品种(系)SSR指纹图谱的构建及遗传相似性分析)[J]显示文摘 | CHENGBS(氍保…) WANGJ(王健) XUWJ(徐卫军) etal | | 江嚣农业学报0,,: | 1 |
| 18 | Friction behaviors of hydrogenated diamond-like carbon film in different environment sliding against steel ball显示文摘 | LI HONGXUAN XU TAO WANG CHENGBING | 2005 | Applied Surface Science2005,249,: | 1 |
| 19 | Epidemiology of severe sepsis in critically ill surgical patients in ten university hospitals in China 显示文摘 | ChengB XieG YaoS | 2007 | Crit Care Med2007,35,11: | 1 |
| 20 | Imaging iron stores in the brain using magnetic resonance imaging显示文摘 | Haaeke E M Chengb N Y C House M J | 2005 | Magn Reson Imaging2005,23,1: | 1 |