The hydrodynamic behaviour of an oscillating wave surge converter(OWSC) in large motion excited by nonlinear waves is investigated. The mechanism through which the wave energy is absorbed in the nonlinear system is an...The hydrodynamic behaviour of an oscillating wave surge converter(OWSC) in large motion excited by nonlinear waves is investigated. The mechanism through which the wave energy is absorbed in the nonlinear system is analysed. The mathematical model used is based on the velocity potential theory together with the fully nonlinear boundary conditions on the moving body surface and deforming free surface. The problem is solved by the boundary element method. Numerical results are obtained to show how to adjust the mechanical properties of the OWSC to achieve the best efficiency in a given wave, together with the nonlinear effect of the wave height. Numerical results are also provided to show the behaviour of a given OWSC in waves of different frequencies and different heights.展开更多
The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide attention.Existing research has primarily the hydrocarbon generations capability of sour...The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide attention.Existing research has primarily the hydrocarbon generations capability of source rocks and the quality of reservoirs by diabase intrusions.whereas,rare systematic research has been conducted on the oiliness and enrichment mechanism.To be specific,the diabase intrusive zone,the contact metamorphic zone and the normal shale zone of the Funing Formation in the Gaoyou Sag,Subei Basin were taken as the object of this study.Moreover,in this study,the hydrocarbon generation quality,reservoir quality,and oil-bearing quality of diabase-metamorphic zone-normal shale were evaluated using X-ray diffractions,argon ion polishing-field emission scanning electron microscope,energy spectrum,rock slice/light-sheet microscopic observations,organic geochemical tests,N_(2) gas adsorption and 2D NMR tests.The results indicated that the intrusive zone,the metamorphic zone,and the normal zone were formed in order by the degree of effect of diabase intrusions.Secondly,the oil content of different parts exhibited significant heterogeneity due to the baking effect of diabase,and the metamorphic zone had the significantly better oil-bearing nature than the intrusive zone.Lastly,a distribution model was proposed for the diabase intrusive zone-metamorphic zone-normal surrounding rock zone.展开更多
在项目运维中,基于建筑信息模型(building information model,BIM)技术的应用系统顺应时代要求应运而生。为实现项目全寿命周期智能化管理,主要从运维阶段对实验研发中心进行功能剖析和开发,结合实验研发中心楼特殊的性质开展。以某实...在项目运维中,基于建筑信息模型(building information model,BIM)技术的应用系统顺应时代要求应运而生。为实现项目全寿命周期智能化管理,主要从运维阶段对实验研发中心进行功能剖析和开发,结合实验研发中心楼特殊的性质开展。以某实验研发中心楼工程图纸及行业标准规范为依据,辅以Revit、Pathfinder、BIMFACE等软件为技术支撑,构建及优化实验研发中心3D模型;研究最适宜实验研发中心的逃生路线,并使用BIMFACE二次开发平台搭建了该楼的运维管理平台。展开更多
基金financially supported by Lloyd's Register Foundation through the joint centre involving University College London,Shanghai Jiao Tong University and Harbin Engineering Universitysupported by the National Natural Science Foundation of China(Grant No.11472088)
文摘The hydrodynamic behaviour of an oscillating wave surge converter(OWSC) in large motion excited by nonlinear waves is investigated. The mechanism through which the wave energy is absorbed in the nonlinear system is analysed. The mathematical model used is based on the velocity potential theory together with the fully nonlinear boundary conditions on the moving body surface and deforming free surface. The problem is solved by the boundary element method. Numerical results are obtained to show how to adjust the mechanical properties of the OWSC to achieve the best efficiency in a given wave, together with the nonlinear effect of the wave height. Numerical results are also provided to show the behaviour of a given OWSC in waves of different frequencies and different heights.
文摘【目的】建立可同时测定6种植物激素(GA3、iPAde、6-BA、IAA、SA、ABA)的液相色谱-串联质谱联用法(Liquid chromatography-mass spectrometry/mass spectrometry,LC-MS/MS).【方法】采用C18色谱柱(150 mm×2.1 mm,1.8μm)分离和梯度洗脱,质谱采用电喷雾离子源负模式(ESI-),在多反应监测(Multi-reaction monitor,MRM)模式下进行定性分析,标准品标准曲线定量.【结果】在流动相:B(甲醇)∶A(0.1%甲酸),梯度洗脱:0~1 min 10%~40%(B)、1~2.5 min 40%~45%(B)、2.5~5 min 45%~80%(B)、5~5.1 min 80%~10%(B)、5.1~7.1 min 10%~10%(B),检测波长290 nm,柱温35℃,流速0.3 mL/min,离子源温度350℃,干燥气流速11 L/min,雾化器压力35 psi和毛细管电压4 kV等条件下,标准品检出限为1.0μg/L,在1.0~100μg/L质量浓度范围内线性关系良好,相关系数R2≥0.99.采用上述检测方法,马铃薯、油菜和苜蓿3种植物叶片中6种内源激素均有较好的出峰和分离度.【结论】该LC-MS检测方法快速、灵敏和准确,可进行多种植物激素的同时测定.
基金financially supported by the National Natural Science Foundation of China(Grant No.42072150).
文摘The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide attention.Existing research has primarily the hydrocarbon generations capability of source rocks and the quality of reservoirs by diabase intrusions.whereas,rare systematic research has been conducted on the oiliness and enrichment mechanism.To be specific,the diabase intrusive zone,the contact metamorphic zone and the normal shale zone of the Funing Formation in the Gaoyou Sag,Subei Basin were taken as the object of this study.Moreover,in this study,the hydrocarbon generation quality,reservoir quality,and oil-bearing quality of diabase-metamorphic zone-normal shale were evaluated using X-ray diffractions,argon ion polishing-field emission scanning electron microscope,energy spectrum,rock slice/light-sheet microscopic observations,organic geochemical tests,N_(2) gas adsorption and 2D NMR tests.The results indicated that the intrusive zone,the metamorphic zone,and the normal zone were formed in order by the degree of effect of diabase intrusions.Secondly,the oil content of different parts exhibited significant heterogeneity due to the baking effect of diabase,and the metamorphic zone had the significantly better oil-bearing nature than the intrusive zone.Lastly,a distribution model was proposed for the diabase intrusive zone-metamorphic zone-normal surrounding rock zone.
文摘在项目运维中,基于建筑信息模型(building information model,BIM)技术的应用系统顺应时代要求应运而生。为实现项目全寿命周期智能化管理,主要从运维阶段对实验研发中心进行功能剖析和开发,结合实验研发中心楼特殊的性质开展。以某实验研发中心楼工程图纸及行业标准规范为依据,辅以Revit、Pathfinder、BIMFACE等软件为技术支撑,构建及优化实验研发中心3D模型;研究最适宜实验研发中心的逃生路线,并使用BIMFACE二次开发平台搭建了该楼的运维管理平台。
