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基于LabVIEW的STBC-OFDM通信系统设计

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中国新通信 2008年第23期10卷 9-13页

作者：王江海陈涛黎威李平安武汉理工大学信息工程学院武汉430070

结合LabVIEW所具有的图形化编程和交互式可控制界面的特点,采用层次化,模块化的设计方案,针对MIMO-OFDM系统进行模块化设计。在802.16d信道模型基础上,构建了一个典型的STBC-OFDM基带系统仿真模型与框架,并进行系统仿真和性能分析,给出... 详细信息

结合LabVIEW所具有的图形化编程和交互式可控制界面的特点,采用层次化,模块化的设计方案,针对MIMO-OFDM系统进行模块化设计。在802.16d信道模型基础上,构建了一个典型的STBC-OFDM基带系统仿真模型与框架,并进行系统仿真和性能分析,给出了系统性能的基本仿真结论。该系统设计界面直观,数据流程清晰,并具有可扩展性,可用于对STBC-OFDM技术进行深入研究,同时为进一步优化系统算法打下了坚实基础。

关键词： LabVIEW 802.16d SUI MIM0 STBC-OFDM

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城市污泥在矿山废弃地复垦的应用探讨

生态学杂志 2001年第2期20卷 44-47,51页

作者：莫测辉蔡全英王江海吴启堂华南农业大学资源环境学院广州510642 中国科学院广州地球化学研究所广州51640

Based on the analysis of the existing problems in reclaiming abandoned mining land and their negative effect on the ecological environment,and in view of the limited factors to reclaim abandoned mining land,this paper puts forward the suggestions of using sewage sludge as an alternative in mining land *** of sewage sludge in reclamation has beneficial effects, such as increasing organic matter content, preventing soil erosion,recovering vegetation,and promoting microbial population and its activities Unfavorable factors including heavy metal and organic pollutant for applications of sewage sludge and their countermeasures are also discussed.

关键词： sewage sludge abandoned mining land reclamation.

Vector Dominating Multi-objective Evolution Algorithm for Aerodynamic-Structure Integrative Design of Wind Turbine Blade

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Transactions of Nanjing University of Aeronautics and Astronautics 2016年第1期33卷 1-8页

作者： wang Long wang Tongguang Wu jianghai Ke Shitang Jiangsu Key Laboratory of Hi-Tech Research for Wind Turbine Design Nanjing University of Aeronautics and Astronautics

A novel multi-objective optimization algorithm incorporating vector method and evolution strategies,referred as vector dominant multi-objective evolutionary algorithm(VD-MOEA),is developed and applied to the aerodynamic-structural integrative design of wind turbine blades.A set of virtual vectors are elaborately constructed,guiding population to fast move forward to the Pareto optimal front and dominating the distribution uniformity with high *** comparison to conventional evolution algorithms,VD-MOEA displays dramatic improvement of algorithm performance in both convergence and diversity preservation when handling complex problems of multi-variables,multi-objectives and *** an example,a 1.5 MW wind turbine blade is subsequently designed taking the maximum annual energy production,the minimum blade mass,and the minimum blade root thrust as the optimization *** results show that the Pareto optimal set can be obtained in one single simulation run and that the obtained solutions in the optimal set are distributed quite uniformly,maximally maintaining the population *** efficiency of VD-MOEA has been elevated by two orders of magnitude compared with the classical *** provides a reliable high-performance optimization approach for the aerodynamic-structural integrative design of wind turbine blade.

关键词： wind turbine multi-objective optimization vector method evolution algorithm

Mechanism of Structure Variations at Rifted Margins in the Central Segment of South Atlantic:Insights from Numerical Modeling

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1229-1242页

作者： wang Zhichen LI jianghai FENG Zhiqiang wang Lijie LIU Chen Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencePeking UniversityBeijing 100871China Institute of Oil and Gas Peking UniversityBeijing 100871China Sinopec Petroleum Exploration and Production Research Institute Beijing 100871China

Rifted margins in the central South Atlantic portray spatial variability in terms of preserved width and thickness,which relates to complex rift-related fault ***,there is still a lack of systematic and quantitative explanations for the causes of the variations that are observed along the paired *** elucidate this issue,2D viscous-plastic thermomechanical numerical models are applied to capture the behavior of deformation,in which we investigate the effects of extensional rate,crustal strength and thickness on crust-mantle coupling,and timing of transition from rifting to *** numerical experiments demonstrate that crust-mantle decoupling accounts for crustal hyperextension,and that incorporating moderate-intensity rheology into lower crust may yield insights into the hyper-extended crust and asymmetric architecture observed in the central South *** results also suggest that undulations in lithospheric basement cause asymmetric mantle *** lower crust of fold belts takes priority to be thermally weakened over craton and induces rift migration simultaneously.A new mechanism for the formation of failed rift is described,where the mechanical decoupling derived from thermally weakened lower crust gives access to dual rift *** results reinforce the interpretation on how crustal rheology shapes margins architectures and highlight the first-order effects of crust-mantle coupling.

关键词： conjugate rifted margins crustal rheology crust-mantle coupling and decoupling rift migration central South Atlantic

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邻域信息加权的最小二乘投影双支持向量聚类

电子测量技术 2024年第12期47卷 59-70页

作者：王顺霞黄成泉罗森艳杨贵燕蔡江海贵州民族大学数据科学与信息工程学院贵阳550025 贵州民族大学工程技术人才实践训练中心贵阳550025

针对最小二乘投影双支持向量聚类(LSPTSVC)算法未充分利用样本邻域之间的潜在信息、实用性不强等问题,本文提出了一种高效的邻域信息加权的最小二乘投影双支持向量聚类算法。首先引入相对密度概念充分提取数据集中同类数据点之间的局部... 详细信息

针对最小二乘投影双支持向量聚类(LSPTSVC)算法未充分利用样本邻域之间的潜在信息、实用性不强等问题,本文提出了一种高效的邻域信息加权的最小二乘投影双支持向量聚类算法。首先引入相对密度概念充分提取数据集中同类数据点之间的局部相似性信息,然后计算该点的相对权重,最后利用该权重获得数据点的加权平均值,来更好的反映同类样本的几何结构。实验结果验证了所提算法的有效性,结果表明本文算法在相似的计算复杂度下,相比现有方法取得了更好的聚类准确性,且在真实世界的医学数据集的实际应用中表现出良好的聚类性能。

关键词：邻域信息相对权重最小二乘双支持聚类

川东地区天然气场站固化池渗滤液污染特征及其对地下水影响研究

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环境科学学报 2024年第5期44卷 264-272页

作者：袁增冯小波杨江海王珏裴逸智郭劲松高俊敏重庆大学材料科学与工程学院重庆400045 重庆大学环境与生态学院重庆400045 中国石油西南油气田公司重庆气矿重庆400707

为了解天然气开采过程中钻井废弃物用固化池处置前后污染物随时间的消减变化及固化池渗滤液对地下水的影响,本研究分别采集川东气田固化池的渗滤液和气田作业区域地下水样品,分析渗滤液和地下水中污染物浓度水平.结果显示,与2013年原完... 详细信息

为了解天然气开采过程中钻井废弃物用固化池处置前后污染物随时间的消减变化及固化池渗滤液对地下水的影响,本研究分别采集川东气田固化池的渗滤液和气田作业区域地下水样品,分析渗滤液和地下水中污染物浓度水平.结果显示,与2013年原完井废弃物浸出液污染物浓度相比,川东地区2022年各场站大部分固化池渗滤液中污染物仍以常规污染物COD为主(92.6%),而氯化物、石油类和硫化物等特征污染物浓度经固化池处理后均未达到GB/T 16848-2017《地下水质量标准》Ⅲ类标准所规定的标准限值.沿江地区和非沿江地区固化池渗滤液中氯化物浓度具有显著性差异(p0.05).2022年部分地下水监测井检测结果显示川东气田固化池渗滤液并未对周边地下水质产生明显影响,但渗滤液指数计算结果显示,240个场站中有3处场站固化池渗滤液呈较高环境风险,可能对当地地下水资源造成潜在污染风险.

关键词：天然气场站固化池渗滤液特征污染物地下水污染 LPI指数

Conodont Biostratigraphic Constraint on the Lower Taiyuan Formation in Southern North China and Its Paleogeographic Implications

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Journal of Earth Science 2022年第6期33卷 1480-1493页

作者： Yuan wang jianghai Yang Dong-Xun Yuan Jia Liu Rui Ma School of Earth Sciences China University of GeosciencesWuhan430074China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesWuhan430074China School of Resources and Geosciences China University of Mining and TechnologyXuzhou221116China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PaleoenvironmentChinese Academy of SciencesNanjing210008China

The Late Paleozoic Taiyuan Formation in North China is mainly composed of a mixed shallow-marine carbonate and terrigenous clastic *** basal limestones have been constrained in the late Pennsylvanian to Early *** further constrain the age of the lowest Taiyuan Formation,we obtained two genera and 16 species of conodonts from the bottom limestones of the Taiyuan Formation in two sections in Henan Province,southern North *** fauna includes Idiognathodus hebeiensis,Streptognathodus isolatus,***,***,***,***,***,***,***,***,***,***,***,***,***,and ***.A genus of Streptognathodus dominated conodont assemblage with some Idiognathodus *** indicates a late Gzhelian(latest Pennsylvanian)age for the lowest Taiyuan Formation in southern North *** is consistent with recently published high-precision zircon U-Pb ages from ash *** on conodont biostratigraphy,the basal limestones of the Taiyuan Formation in Henan Province(southern North China)can be correlated with the upper part of Miaogou limestones of the Taiyuan Formation in Shanxi Province(northern North China).This correlation might reflect a significant sea-level rise in North China,possibly corresponding to a deglaciation event at the Permo-Carboniferous transition.

关键词： Taiyuan Formation conodonts Gzhelian southern North China biostratigraphy

Heat Shielding Effects in the Earth＇s Crust

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Journal of Earth Science 2017年第1期28卷 161-167页

作者： Yixian Xu Lupei Zhu Qinyan wang Yinhe Luo jianghai Xia School of Earth Sciences Zhejiang University Hangzhou 310027 China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China Hubei Subsurface Multi-Scale lmaging Key Laboratory Institute of Geophysics and Geomatics China University of Geosciences Wuhan 430074 China Department of Earth and Atmospherie Sciences Saint Louis University St. Louis MO 63103 USA School of Earth Sciences China University of Geosciences Wuhan 430074 China

Knowledge of heat flow and associated variations of temperature with depth is crucial for understanding how the Earth functions. Here, we demonstrate possible heat shielding effects that result from the occurrence of mafic intrusions/layers（granulitic rocks） within a dominantly granitic middle crust and/or ultramafic intrusions/layers（peridotitic rocks） within a dominantly granulitic lower crust; heat shielding is a familiar phenomenon in heat engineering and thermal metamaterials. Simple one-dimensional calculations suggest that heat shielding due to the intercalation of granitic, granulitic and peridotitic rocks will increase Moho temperatures substantially. This study may lead to a rethinking of numerous proposed lower crustal processes.

关键词： geotherm crustal laminated structure heat shielding heat conductivity peridotitic in-trusions North Tibet magnetotelluric data.

DIRECT DATING OF LEFT-LATERAL SLIP ALONG THE RED RIVER SHEAR ZONE

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地学前缘 2000年第S1期7卷 275-275页

作者： Lisa Gilley 1, T. Mark Harrison 1,F.J. Ryerson 2,P.H. Leloup 3,wang jianghai 4(1 Department of Earth and Space Sciences & IGPP, UCLA, Los Angeles, CA, 90095\|1567, USA. 2 Institute of Geophysics & Planetary Physics, Lawrence Livermore N

The Red River Shear Zone (RRSZ), which extends from eastern Tibet to the South China Sea, plays a central role in the hypothesis that strike\|slip extrusion of Indochina accommodated a significant portion of Indo\|Asian convergence. The massifs of the RRSZ, the only known mid\|crustal section exposed through a transform plate boundary, contain high\|grade metamorphic rocks that are believed to have been plastically deformed in a left\|lateral sense during the mid\|Tertiary. While the history of diachronous transtension along the RRSZ was previously obtained for temperatures below the brittle\|ductile transition from argon thermochronometry, the precise timing of high temperature deformation and the magnitude of strain have not been directly determined. This is a significant limitation to testing the extrusion model as magnetic anomalies from the South China Sea, interpreted to be a pull apart basin at the SE termination of the RRSZ, specifically predict that slip occurred between 35～17Ma at a rate of 3～5cm/a.

关键词： the Red River Shear Zone Ailao Shan Day Nui Con Voi Th\| Pb monazite