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Journal of Ocean University of China 2017年第3期16卷 525-531页

作者： LIU Bilin LIN Jingyuan feng chunlei LI Jianhua SU Hang College of Marine Sciences Shanghai Ocean University East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

The age, growth and maturation of Sthenoteuthis oualaniensis were determined with statolith data collected with a light purse seine from the Bashi Channel of central Pacific Ocean. The estimated longevity of the squid was no more than 6 months for females, and no more than 5 months for males. Growth in mantle length(ML) was best described by logistic models for both females and males, while growth in body weight(BW) was best fitted by power curves. The maximum absolute growth rate(AGR) and instantaneous growth rate(IGR) in ML or BW both occurred at 91–105 days for females and 76–90 days for males. Back calculated hatching dates were from October to January, with a peak in December, although the short duration of sampling date might have had an influence on the result. The lower percentage of mature females(37.2%) suggested that the study area during the sampling date was not a spawning ground for the species. Size and age at first maturity were 183 mm ML and 136 days for females, whereas they were 156 mm ML and 85 days for males.

关键词： Sthenoteuthis oualaniensis central Pacific Ocean statolith age growth maturation

Simulations and Measurement of Electron Energy and Effective Electron Temperature of Nanosecond Pulsed Argon Plasma

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Plasma Science and Technology 2012年第1期14卷 40-47页

作者： WEN Xueqing XIN Yu feng chunlei DING Hongbin School of Physics and Optical Electronic Technology Key Laboratory of Material Modification by LaserIon and Electron BeamChinese Ministry of EducationDalian University of Technology116023 DalianChina

The behavior of argon plasma driven by nanosecond pulsed plasma in a low-pressure plasma reactor is investigated using a global model, and the results are compared with the experimental measurements. The time evolution of plasma density and the electron energy probability function are calculated by solving the energy balance and Boltzmann equations. During and shortly after the discharge pulse, the electron energy probability function can be represented by a bi-Maxwellian distribution, indicating two energy groups of electrons. According to the effective electron temperature calculation, we find that there are more high-energy electrons that play an important role in the excitation and ionization processes than low-energy electrons. The effective electron temperature is also measured via optical emission spectroscopy to evaluate the simulation model. In the comparison, the simulation results are found to be in agreement with the measure- ments. Furthermore, variations of the effective electron temperature are presented versus other discharge parameters, such as pulse width time, pulse rise time and gas pressure.

关键词： effective electron temperature model optical emission spectrum nanosecond pulsed glow discharge global

Geographical distribution and age composition of Euphausia superba larvae (Crustacea: Euphausiacea) in the South Shetland Islands region and southern Scotia Sea in relation to environmental conditions

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Acta Oceanologica Sinica 2013年第11期32卷 59-67页

作者： GAO Qian XU Zhaoli HUANG Hongliang CHEN Xuezhong feng chunlei LI Lingzhi Key and Open Laboratory of Marine and Estuarine Fisheries Ministry of AgricultureEast China Sea Fisheries Research InstituteChinese Academy of Fishery Sciences

Spatial distribution patterns of the different life stages of Euphausia superba in the region of the South Shet- land Islands and southern Scotia Sea （Antarctica） were assessed based on scientific survey data collected in lanuary and February of 2010. Adults, eggs, nauplii, metanauplii, calyptopis I-Ill, and furcilia I-II were found in the investigation. The abundance of larvae averaged 1 172.8 ind./mz, with calyptopis I and II as the dominant stages. Habitat occupancy patterns varied among Euphausia superba at different stages, and three sub-regions were identified by cluster analysis. The degree of larval development increased from west to east. Larvae were not observed north of the South Shetland Islands. Calyptopis I was predominant in the water between Elephant Island and the South Orkney Islands, which featured no thermocline. Older stages, including calyptopis II and III and furcilia I and II, were common in north and northeast of the South Orkney Islands, which were characterized by high temperature and high chlorophyll concentration. Distri- bution and abundance of the early life stages of E. superba were associated with specific environmental con- ditions. According to Biota-Environment matching （BIOENV）, the distributions of E. superba larvae were correlated with a combination of temperature at the surface and 200 m, and 0-100 m integrated chlorophyll a concentration.

关键词： Southern Ocean Euphausia superba larvae distribution pattern

A Comparative Study on Hydrodynamic Performance of Double Deflector Rectangular Cambered Otter Board

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Journal of Ocean University of China 2018年第5期17卷 1218-1224页

作者： XU Qingchang feng chunlei HUANG Liuyi XU Jiqiang WANG Lei ZHANG Xun LIANG Zhenlin TANG Yanli ZHAO Fenfang WANG Xinxin College of Fisheries Ocean University of China East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Marine College Shandong University

In the present work,the hydrodynamic performance of the double deflector rectangular cambered otter board was studied using wind tunnel experiment,flume tank experiment and numerical *** showed that the otter board had a good hydrodynamic performance with the maximum lift-to-drag ratio(K_(MAX) = 3.70).The flow separation occurred when the angle of attack(AOA) was at 45?,which revealed that the double deflector structure of the otter board can delay the flow *** simulation results showed a good agreement with experiment ones,and could predict the critical AOA,which showed that it can be used to study the hydrodynamic performance of the otter board with the advantage of flow ***,the drag coefficient in flume tank was much higher than that in wind tunnel,which resulted in a lower lift-to-drag *** may be due to different fluid media between flume tank and wind tunnel,which result in the big difference of the vortexes around the otter *** the otter boards are operated in water,it was suggested to apply both flume tank experiment and numerical simulation to study the hydrodynamic performance of otter board.

关键词： wind tunnel experiment flume tank experiment numerical simulation double deflector rectangular cambered otter board hydrodynamic performance

Influence of main-panel angle on the hydrodynamic performance of a single-slotted cambered otter-board

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Aquaculture and Fisheries 2017年第5期2卷 234-240页

作者： Lei Wang Lumin Wang chunlei feng Aizhong Zhou Wenwen Yu Yu Zhang Xun Zhang East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesShanghai 200090China

The effect of the main-panel angle of a single-slotted cambered otter-board was investigated using engineering models in a wind *** different angles(0,6,and 12)were evaluated at a wind speed of 28 m/*** measured included:drag coefficient Cx,lift coefficient Cy,pitch moment coefficient Cm,center of pressure coefficient Cp,and the liftedrag ratio Cy/Cx,over a range of angle of attack(0e70).These coefficients were used in analyzing the differences in the performance among the three otter-board *** showed that the maximum lift coefficient Cy of the otter-board model with a main-panel angle of 0was highest(1.875 at a¼25).However,when the angle of attack was smaller(0

关键词： Otter-board Main-panel Wind tunnel test Hydrodynamic performance

Study of spatial and temporal evolution of Ar and F atoms in SF6/Ar microsecond pulsed discharge by optical emission spectroscopy

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Plasma Science and Technology 2019年第7期21卷 69-76页

作者： Hongyue LI Xingwei WU Cong LI Yong WANG Ding WU Jiamin LIU chunlei feng Hongbin DING Key Laboratory of Materials Modification by Laser Ion and Electron Beams(Ministry of Education)School of Physics Dalian University of Technology

The study of sulfur hexafluoride(SF6) discharge is vital for its application in gas-insulated equipment. Direct current partial discharge(PD) may cause SF6 decomposition, and the decomposed products of SF6, such as F atoms, play a dominant role in the breakdown of insulation systems. In this study, the PD caused by metal protrusion defects is simulated by a needle-plate electrode using pulsed high voltage in SF6/Ar mixtures. The spatial and temporal characteristics of SF6/Ar plasma are analyzed by measuring the emission spectra of F and Ar atoms, which are important for understanding the characteristics of PD. The spatial resolved results show that both F and Ar atom spectral intensities increase first from the plate anode to the needle and then decrease under the conditions of a background pressure of400 Pa, peak voltage of-1000 V, frequency of 2 kHz, pulse width of 60 μs, and electrode gap of 5-9 mm. However, the distribution characteristics of F and Ar are significantly different. The temporal distribution results show that the spectral intensity of Ar decreasesfirst and then increases slowly, while the spectral intensity of F increases slowly for the duration of the pulsed discharge at the electrode gap of 5 mm and the pulse width of40-80 μs.

关键词： optical emission spectroscopy partial discharge SF6-insulated equipment spatial and temporal evolution

砂卵石地区地铁车站基坑整体变形模式及其应用

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岩石力学与工程学报 2018年第A2期37卷 4395-4405页

作者：冯春蕾张顶立北京交通大学城市地下工程教育部重点实验室

为研究考虑空间效应的地铁车站基坑的整体变形情况,结合北京地区18个地铁车站基坑工程的大量变形实测数据,首先通过建立基坑在距坑角距离为d的各个断面与其中部之间最大变形的关系,得出狭长型基坑在砂卵石地层中的整体变形规律可根据不... 详细信息

为研究考虑空间效应的地铁车站基坑的整体变形情况,结合北京地区18个地铁车站基坑工程的大量变形实测数据,首先通过建立基坑在距坑角距离为d的各个断面与其中部之间最大变形的关系,得出狭长型基坑在砂卵石地层中的整体变形规律可根据不同的长深比L/He及围护结构的类型选用相应的分段高斯函数表示,同时可以确定基坑最大变形断面的位置;在此基础上得到的基坑整体变形模式可根据基坑长度L定量划分坑角效应区域和平面应变区域。最后基于上述研究初步建立以内支撑施加预应力为主的地铁车站基坑动态变形控制流程,并对流程的可行性进行验证。结果表明,该动态控制流程可使基坑在设计、施工和监测阶段都能充分考虑基坑开挖过程中空间效应的影响,从而经济有效的控制基坑变形。

关键词：土力学砂卵石地区地铁车站基坑空间效应整体变形模式动态控制流程

Online Dispatching Decision Support System for Smart Grid Reservoir Group

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Electricity 2011年第5期22卷 20-26页

作者： Wang feng and Huang chunlei tate Grid Electric Power Research Institute Wang Shaohua State Grid Electric Power Research Institute

Based on the full use of historical reservoir dispatching information, artificial intelligence is applied to grid reservoir group dispatching. A knowledge representation method, which combines dispatching rules and intelligence models, is put forward. The intelligent dispatching system is established and the system architecture is presented. Additionally, the acquisition, representation and reasoning mechanism of reservoir dispatching knowledge are designed in detail.

关键词： reservoir dispatching decision support system (DSS) knowledge engineering intelligent model fuzzy optimization

G蛋白偶联雌激素受体在乳制品雌激素检测中的应用潜力

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食品科学 2022年第15期43卷 245-255页

作者：冯春雷鲁丁强庞广昌天津商业大学生物技术与食品科学学院天津300134 天津市食品生物技术重点实验室天津300134

乳制品作为人们广泛消费的一种食品,其安全性备受关注。研究发现,乳制品中出现的高含量的天然雌激素和滥用或非法使用的合成雌激素可能导致人体内分泌失调,甚至诱发癌症。研究还发现,雌激素与G蛋白偶联雌激素受体(G-protein coupled est... 详细信息

乳制品作为人们广泛消费的一种食品,其安全性备受关注。研究发现,乳制品中出现的高含量的天然雌激素和滥用或非法使用的合成雌激素可能导致人体内分泌失调,甚至诱发癌症。研究还发现,雌激素与G蛋白偶联雌激素受体(G-protein coupled estrogen receptor,GPER)互相作用来控制基于钙离子通道的快速非基因组途径,该途径有别于经典的核受体(雌激素受体(estrogen receptor,ER)α和ERβ)介导的基因组途径。本文阐述了GPER与雌激素以及乳制品中雌激素检测的关系,重点介绍了乳制品中雌激素生物学检测方法的研究进展,并对GPER在乳制品雌激素检测中的应用潜力进行了分析和展望。

关键词：雌激素乳制品 G蛋白偶联雌激素受体雌激素受体生物学检测生物传感器

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大滞后特性处理的研究和比较

北京化工大学学报（自然科学版） 2008年第6期35卷 98-101页

作者：靳其兵刘明鑫冯春蕾北京化工大学信息科学与技术学院北京100029

针对一、二阶加大滞后对象,对滞后项分别进行一阶Pade逼近、二阶对称Pade逼近,二阶非对称Pade逼近和全极点逼近。分析研究了开环,闭环系统中带有滞后的问题,并通过几种近似方法与理论输出值的ISE值来比较各种逼近方法的精度。同时提出... 详细信息

针对一、二阶加大滞后对象,对滞后项分别进行一阶Pade逼近、二阶对称Pade逼近,二阶非对称Pade逼近和全极点逼近。分析研究了开环,闭环系统中带有滞后的问题,并通过几种近似方法与理论输出值的ISE值来比较各种逼近方法的精度。同时提出在计算过程中对滞后处理的改进方法,通过仿真进行比较,使得误差大大减小,精度提高。

关键词：大滞后 Pade逼近全极点逼近