Freely movable wave energy converters(WECs) will greatly improve their adaptability to the marine environment.In this paper, a dual-mode oscillating water column(OWC) WEC with potential sailing capability is proposed....Freely movable wave energy converters(WECs) will greatly improve their adaptability to the marine environment.In this paper, a dual-mode oscillating water column(OWC) WEC with potential sailing capability is proposed. By opening and closing a gate on the side facing the waves, the WEC converts wave energy in the vertical duct(called VD mode) with low sailing resistance or in the backward bend duct(called BBD mode) with high sailing resistance.A small model and a medium model were designed and manufactured. The capture width ratio(CWR) of the small model in the two modes was experimentally studied. The CWR under bidirectional airflow and conversion characteristics under unidirectional airflow of the medium model in the BBD mode were obtained. Tests of the small model show that the peak CWR is 145.2% under regular waves and 90.1% under random waves in BBD mode, and in VD mode the peak CWR is about 60% of that in the BBD mode. Tests of the medium model show that the peak CWR is 228.96% under regular waves, the maximum wave-to-battery efficiency is 63.36% under regular waves and 30.17%under random waves, respectively.展开更多
针对当前大部分固定格式报表灵活性差、不能满足实际应用需求的不足,提出了基于OWC(Office Web Component)的柔性动态报表生成器解决方案。首先根据报表中数据的变化情况将其归纳为静态报表和动态报表并抽象出两类报表基模板;然后以柔...针对当前大部分固定格式报表灵活性差、不能满足实际应用需求的不足,提出了基于OWC(Office Web Component)的柔性动态报表生成器解决方案。首先根据报表中数据的变化情况将其归纳为静态报表和动态报表并抽象出两类报表基模板;然后以柔性软件的思想建立报表模板知识库,使得用户可以自行依据报表基模板建立所需的报表而无需对代码进行调整;最后采用OWC设计了柔性动态报表生成器。基于OWC丰富的数据表达能力和编辑功能,极大提高了报表软件的易用性和柔性。展开更多
Office Web Components是Microsoft Office 2000版本以上提供的一组控件集合,简称OWC组件,COM控件,其设计的目的是为众多的控件容器提供交互的电子表格建模,数据报表和数据可视化功能。OWC库包含四个主要的组件:Spreadshee(t电子数据表...Office Web Components是Microsoft Office 2000版本以上提供的一组控件集合,简称OWC组件,COM控件,其设计的目的是为众多的控件容器提供交互的电子表格建模,数据报表和数据可视化功能。OWC库包含四个主要的组件:Spreadshee(t电子数据表)组件、Char(t图表)组件、PivotTable(数据透视表)组件、Data Source(数据源)组件。文章对OWC组件的功能与应用进行了介绍,并提供了VB利用此组件开发的案例。展开更多
基金financially supported by the National Natural Science Foundation of China (Grant Nos. 51879253 and U20A20106)。
文摘Freely movable wave energy converters(WECs) will greatly improve their adaptability to the marine environment.In this paper, a dual-mode oscillating water column(OWC) WEC with potential sailing capability is proposed. By opening and closing a gate on the side facing the waves, the WEC converts wave energy in the vertical duct(called VD mode) with low sailing resistance or in the backward bend duct(called BBD mode) with high sailing resistance.A small model and a medium model were designed and manufactured. The capture width ratio(CWR) of the small model in the two modes was experimentally studied. The CWR under bidirectional airflow and conversion characteristics under unidirectional airflow of the medium model in the BBD mode were obtained. Tests of the small model show that the peak CWR is 145.2% under regular waves and 90.1% under random waves in BBD mode, and in VD mode the peak CWR is about 60% of that in the BBD mode. Tests of the medium model show that the peak CWR is 228.96% under regular waves, the maximum wave-to-battery efficiency is 63.36% under regular waves and 30.17%under random waves, respectively.
文摘针对当前大部分固定格式报表灵活性差、不能满足实际应用需求的不足,提出了基于OWC(Office Web Component)的柔性动态报表生成器解决方案。首先根据报表中数据的变化情况将其归纳为静态报表和动态报表并抽象出两类报表基模板;然后以柔性软件的思想建立报表模板知识库,使得用户可以自行依据报表基模板建立所需的报表而无需对代码进行调整;最后采用OWC设计了柔性动态报表生成器。基于OWC丰富的数据表达能力和编辑功能,极大提高了报表软件的易用性和柔性。
