共查询到20条相似文献,搜索用时 296 毫秒
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[英国《简氏防务周刊》2005年11月2日报道]11月3日,南非海军将正式接收209级潜艇并将其编入现役。该潜艇是1999年南非海军订购的3艘209/1400型潜艇中的第一艘。 相似文献
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[案情]
原告:H运输公司(以下简称H公司)
被告:S实业公司(以下简称S公司)
2007年1月6日,H公司与S公司通过传真方式签订运输协议,约定H公司承运S公司所有的1420吨钢坯由大连鲅鱼圈港至广西防城港;包干运费每吨人民币297元;H公司保证货物运输安全,如出现丢失及损坏,依照购货发票价格赔偿、双方未就铜坯运抵防城港的卸货时间达成一致,亦未在该协议中加以约定。 相似文献
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基于嵌入式服务器的多模航行信息接收系统设计 总被引:1,自引:1,他引:0
文章设计了一种基于嵌入式服务器的多模航行信息接收系统,具有自动接收船舶识别信息、航行告警信息和气象传真信息的功能,同时具备了通过多功能显示器和热敏打印装置进行集中显示和图像打印的功能。文中给出了系统硬件组态及相应软件设计流程,测试和试用结果显示系统具有极高可靠性和实用性,具有很大的市场推广价值。 相似文献
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阐述了新编教材《航海学》^[1]对船速和计程仪改正率的测定方法所作的一些改进及其理由,从而修正了原教材《航海学》^[2][3][4]中存在的一些不合理的问题 相似文献
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[案情]
原告:H运输公司(以下简称H公司)
被告:S实业公司(以下简称S公司)
2007年1月6日,H公司与S公司通过传真方式签订运输协议,约定H公司承运S公司所有的1420吨钢坯由大连鲅鱼圈港至广西防城港;包干运费每吨人民币297元;H公司保证货物运输安全,如出现丢失及损坏,依照购货发票价格赔偿。双方未就钢坯运抵防城港的卸货时间达成一致,亦未在该协议中加以约定。 相似文献
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本文简要介绍了短波气象定频接收机与PC机之间的接口卡电路,将此卡插入PC机扩展槽后,与气象传真接收机相连即可将气象传真图直接收入PC机中保存,然后提出了一系列气象传真图图象处理技术、主要是针对自动提取高空500hpa等压面上的纬向数据,计算500hpa西风环流指数。 相似文献
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Joan M. Bondareff 《Coastal management》2013,41(2):147-161
Congress has not been able to pass comprehensive oceans policy legislation in recent years. Nonetheless, significant individual oceans policy measures have been enacted. These are reviewed in the article. A Joint Committee on the Organization of Congress has been established to recommend reforms in how Congress conducts its business, including proposals for committee restructuring. These proposals could affect how Congress examines oceans policy issues, but it is unlikely that these reforms will make it easier to pass comprehensive oceans policy legislation. For this to happen, well‐organized constituencies have to demonstrate support for this legislation, which has not happened to date. 相似文献
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以如东人工岛设计波要素推算为例,分别利用历史台风天气图推算法和设计风速推算法推求不同重现期设计波要素并进行对比分析。结果表明,两种方法各有优劣,但历史台风天气图推算法的计算精度比设计风速推算法的精度差,为了安全起见,建议采用设计风速推算法。 相似文献
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Jens Schröder-Fürstenberg 《WMU Journal of Maritime Affairs》2005,4(1):77-94
Charts, Sailing Directions (SDs) and other nautical publications constitute an information unit for the mariner. All relevant
charts and publications together provide the mariner with an overview of a particular sea area. SDs are publications for voyage
planning rather than for direct navigation. These days, the Electronic Chart Display Information System (ECDIS) is on the
way to become a digital information system, which should comprise all information relevant for the mariner. Therefore, the
integration of Sailing Directions information into the present ECDIS is necessary to obtain a comprehensive ECDIS, which makes
conventional SDs and other publications superfluous. 相似文献
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利用传真地面天气图计算海面风 总被引:2,自引:0,他引:2
推导出传真地面天气图上地转风与梯度风的近似计算公式,根据公式制作了地转风与梯度风查算图,并求算了30个站点的海面理论风速值。与实测风速比较,得到了海面摩擦系数和地转风近似法与梯度风近似法计算海面风速的适用条件。 相似文献
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Masaru Tsujimoto Takashi Uehiro Hiroshi Esaki Takeshi Kinoshita Ken Takagi Susumu Tanaka Hiroshi Yamaguchi Hideo Okamura Masuho Satou Yoshimasa Minami 《Journal of Marine Science and Technology》2009,14(1):89-103
To acquire the wind energy of the oceans, a sailing wind farm has been proposed. The wind farm considered is composed of a
semisubmersible floating structure, 11 windmills, four sails, six thrusters, and storage for hydrogen. To maximize the acquired
energy, an effective algorithm to search for optimum routes was developed. The algorithm is based on the fact that beam winds
yield a maximum of acquired energy. This feature reduces the computation time, and, consequently, efficient route optimization
becomes possible in a reasonable time. After setting an operational area for the wind farm, navigation simulations for a 1-year
period were carried out. A numerical weather forecast was used as well as the responses of the floating structure, such as
the speed of the structure, the output power of the windmills, and the time of course changes. In the simulation, the wind
farm evades rough seas to avoid structural damage, and an optimum route is searched for. The capacity factor of the system
was used to evaluate the efficiency of the optimized routes. From the simulations, the maximum capacity factor achieved was
42.6%. The dependency of the capacity factor on the initial position of the wind farm was also examined. It was shown that
offshore from Sanriku in northeastern Japan is an area suited to the operation of the wind farm. The effect of the initial
position on consecutive periods of operation is discussed. 相似文献
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杨良华 《交通部上海船舶运输科学研究所学报》1996,19(1):44-49
横渡太平洋往返两个笈欠的随船调查研究表明,采用气象导航对减少燃油消耗和保证船舶安全、班期等,不但有一定的经济效益,而且是一种非常有效的航运管理方法。 相似文献