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极区海洋碳池变化性和脆弱性及其探测工程技术

陈立奇

《中国工程科学》 2009年 第11卷 第10期   页码 79-85

摘要:

利用中国南极考察和北极科学考察在南大洋和西北冰洋开展的连续围绕大气和表层海水pCO2及其相关参数观测和海气CO2通量评估,阐述南大洋和西北冰洋碳池的年际变化性,分析探讨其脆弱性,并展望了极区海洋碳池探测工程技术。

关键词: 碳循环     变化性和脆弱性     南大洋     西北冰洋     探测工程技术    

海洋工程装备建造设备发展浅探

彭涛,林忠钦,杨建民,柳存根

《中国工程科学》 2016年 第18卷 第4期   页码 109-112 doi: 10.15302/J-SSCAE-2016.04.016

摘要:

海洋工程装备向大型化、深水化发展,性能要求不断提高。海洋装备的建造面临着制造难度提升、环境更为复杂、关键设备精度要求高等难题,对创新加工装备、加工模式等提出了更高要求。制造设备需要在精细化、柔性化、加工与测量相结合等方面提升加工能力,同时在加工设备成套组织、加工控制软件等领域取得突破,从而为海洋工程装备产业的发展提供建造能力的支持,实现制造过程的精细化、智能化和绿色化发展。

关键词: 海洋工程装备     加工装备     制造技术    

我国海洋水色遥感应用工程技术的新进展

潘德炉,白雁

《中国工程科学》 2008年 第10卷 第9期   页码 14-24

摘要:

介绍了近年来我国在海洋水色遥感应用工程技术方面的新进展,包括以应用为导向的关键技术研究和各类应用示范系统的开发等。针对当前海洋水色遥感业务化应用服务所面临的问题和一些急需解决的关键工程技术进行了分析和展望。

关键词: 海洋水色遥感     业务化应用     中国海洋一号卫星    

反应性挤出——利用化学和工程学方法解决海洋塑料污染问题

Philippe Dubois

《工程(英文)》 2022年 第14卷 第7期   页码 15-18 doi: 10.1016/j.eng.2021.12.009

水利水电工程领域的创新材料 Review

Emanuele Quaranta, Peter Davies

《工程(英文)》 2022年 第8卷 第1期   页码 148-158 doi: 10.1016/j.eng.2021.06.025

摘要:

水电行业目前正在经历几项技术发展。新技术和方法的不断涌现,使水力发电更加灵活和可持续。研究人员最近还开发出了新材料以提高水电技术的性能、耐用性和可靠性;然而,缺乏对其进行系统讨论的研究文献。因此,本文介绍了用于水电应用的新型材料,并对它们的性能、优势和局限性进行了讨论。例如,复合材料可以使钢铁设备的重量减轻50%~80%,聚合材料和超疏水材料可以减少4%~20%的压头损失,新型轴承材料可以减少6%的轴承磨损。虽然某些材料的初始成本相对于传统材料的成本尚不具有竞争力,但这些改进提高了材料的效率,延长了材料寿命,减少了浪费和维护需求。本文根据以下类别描述新型材料:涡轮机、大坝和水道、轴承、密封件及海洋水电的新型材料。

关键词: 轴承     复合材料     水坝     水电     材料     海洋     密封件     涡轮机    

Rare tumors: a blue ocean of investigation

《医学前沿(英文)》 2023年 第17卷 第2期   页码 220-230 doi: 10.1007/s11684-023-0984-z

摘要: Advances in novel drugs, therapies, and genetic techniques have revolutionized the diagnosis and treatment of cancers, substantially improving cancer patients’ prognosis. Although rare tumors account for a non-negligible number, the practice of precision medicine and development of novel therapies are largely hampered by many obstacles. Their low incidence and drastic regional disparities result in the difficulty of informative evidence-based diagnosis and subtyping. Sample exhaustion due to difficulty in diagnosis also leads to a lack of recommended therapeutic strategies in clinical guidelines, insufficient biomarkers for prognosis/efficacy, and inability to identify potential novel therapies in clinical trials. Herein, by reviewing the epidemiological data of Chinese solid tumors and publications defining rare tumors in other areas, we proposed a definition of rare tumor in China, including 515 tumor types with incidences of less than 2.5/100 000 per year. We also summarized the current diagnosis process, treatment recommendations, and global developmental progress of targeted drugs and immunotherapy agents on the status quo. Lastly, we pinpointed the current recommendation chance for patients with rare tumors to be involved in a clinical trial by NCCN. With this informative report, we aimed to raise awareness on the importance of rare tumor investigations and guarantee a bright future for rare tumor patients.

关键词: rare tumors     diagnosis flowchart     treatment strategy     clinical trials recommendation    

我国卫星海洋空间探测

蒋兴伟,林明森,刘建强

《中国工程科学》 2008年 第10卷 第6期   页码 56-62

摘要:

分析了卫星遥感海洋探测技术的发展趋势,以及其对海洋科学的影响。回顾了海洋卫星遥感技术的发展历程,并把国内海洋遥感技术与国外相应技术作了简单对比,指出两者的区别。介绍了我国2007—2020年海洋遥感卫星发射的关键技术,其发展的第一个里程碑是HY-1和HY-2卫星的发射,主要用于监控海洋灾害,比如赤潮、油类溢出、水质和海冰等。最后提出了我国发展卫星遥感应用技术的建议。

关键词: 海洋卫星     发展规划     海洋强国    

on improved performance of an innovative method of using heave response of a non-floating object for ocean

Srinivasan CHANDRASEKARAN, Arunachalam AMARKARTHIK, Karuppan SIVAKUMAR, Dhanasekaran SELVAMUTHUKUMARAN, Shaji SIDNEY

《能源前沿(英文)》 2013年 第7卷 第3期   页码 279-287 doi: 10.1007/s11708-013-0268-4

摘要: To convert wave energy into usable forms of energy by utilizing heaving body, heaving bodies (buoys) which are buoyant in nature and float on the water surface are usually used. The wave exerts excess buoyancy force on the buoy, lifting it during the approach of wave crest while the gravity pulls it down during the wave trough. A hydraulic, direct or mechanical power takeoff is used to convert this up and down motion of the buoy to produce usable forms of energy. Though using a floating buoy for harnessing wave energy is conventional, this device faces many challenges in improving the overall conversion efficiency and survivability in extreme conditions. Up to the present, no studies have been done to harness ocean waves using a non-floating object and to find out the merits and demerits of the system. In the present paper, an innovative heaving body type of wave energy converter with a non-floating object was proposed to harness waves. It was also shown that the conversion efficiency and safety of the proposed device were significantly higher than any other device proposed with floating buoy. To demonstrate the improvements, experiments were conducted with non-floating body for different dimensions and the heave response was noted. Power generation was not considered in the experiment to observe the worst case response of the heaving body. The device was modeled in artificial neural network (ANN), the heave response for various parameters were predicted, and compared with the experimental results. It was found that the ANN model could predict the heave response with an accuracy of 99%.

关键词: ocean wave energy     point absorbers     heaving body     non-floating object     heave response ratio     artificial neural network (ANN)    

Effects of thermocline on performance of underwater glider’s power system propelled by ocean thermal

Hai YANG, Jie MA,

《能源前沿(英文)》 2009年 第3卷 第4期   页码 472-479 doi: 10.1007/s11708-009-0052-7

摘要: The thermal glider’s changeable volume produces propelling force to power the glider’s descending and ascending through the thermocline. The different depth, thickness, and intensity of the thermocline at different seasons and locations affect the working processes of the glider’s power system. Based on the enthalpy method, a mathematical model of the underwater glider’s power system was established and the time efficiency of operation was introduced, so that the effects of different thermoclines on the underwater glider’s power system were analyzed theoretically. The simulation result shows that the thermocline affects the transition time of the phase change processes of working fluids within the thermal engine tubes. There exist the threshold values of the thermocline’s depth and upper thickness for the power system’s operation. A depth or upper thickness of the thermocline less than the corresponding threshold leads the power system to work abnormally. To keep the power system working efficiently, a glider must be kept in warm surface water for a certain period before it moves through cold water, so that the time efficiency of operation is reduced. A less time efficiency of operation is unfavorable to the thermal glider to penetrate through the ocean currents.

关键词: mathematical     underwater glider     system working     certain     corresponding threshold    

Demands and challenges for construction of marine infrastructures in China

Huajun LI; Yong LIU; Bingchen LIANG; Fushun LIU; Guoxiang WU; Junfeng DU; Huimin HOU; Aijun LI; Luming SHI

《结构与土木工程前沿(英文)》 2022年 第16卷 第5期   页码 551-563 doi: 10.1007/s11709-022-0839-8

摘要: The oceans are crucial to human civilization. They provide core support for exploitation and utilization of marine space, resources, and energy. Thus, marine infrastructures are vital to a nation’s economic sustainable development. To this end, this article first describes the main challenges in current ocean utilization, and then reviews the China’s ocean engineering progress. As such, six major sectors are evaluated: 1) global climate change and marine environment, 2) comprehensive utilization of marine space, 3) marine transportation infrastructure interconnection, 4) ocean clean energy development and maricultural facilities, 5) ecological crisis and marine engineering countermeasures, and 6) marine infrastructure operation safety and maintenance. Finally, perspectives on future directions of ocean utilization and marine infrastructure construction in China are provided.

关键词: marine infrastructures     ocean engineering     exploitation of marine resource     coastal development     emerging marine industries     technological challenges    

A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

《能源前沿(英文)》 2015年 第9卷 第3期   页码 297-310 doi: 10.1007/s11708-015-0370-x

摘要: Harvesting the energy from ocean waves is one of the greatest attractions for energy engineers and scientists. Till date, plenty of methods have been adopted to harvest the energy from the ocean waves. However, due to technological and economical complexity, it is intricate to involve the majority of these energy harvesters in the real ocean environment. Effective utilization and sustainability of any wave energy harvester depend upon its adaptability in the irregular seasonal waves, situation capability in maximum energy extraction and finally fulfilling the economic barriers. In this paper, the front end energy conversions are reviewed in detail which is positioned in the first stage of the wave energy converter among other stages such as power take off (PTO) and electrical energy conversion. If the recent development of these front end energy conversion is well known then developing wave energy converter with economic and commercial viability is possible. The aim of this review is to provide information on front end energy conversion of a point absorber and emphasize the strategies and calamity to be considered in designing such kinds of devices to improve the energy harvesting competence. This will be useful to the engineers for speeding up the development of a matured point absorbing type wave energy converter.

关键词: wave energy converter     point absorbers     power take off (PTO)     front end energy conversion    

从有缆遥控水下机器人到自治水下机器人

封锡盛

《中国工程科学》 2000年 第2卷 第12期   页码 29-33

摘要:

文章给出了水下机器人的定义,依据定义进行了分类,简要回顾了几类重要水下机器人的进展,指出了无人无缆自治水下机器人(AUVs)是当今水下机器人研究与开发的热点,介绍了最近20年沈阳自动化研究所与国内外有关单位合作,在水下机器人领域从无人有缆遥控水下机器人(ROVs)到AUVs的研究开发工作,它从一个侧面反映了我国在这一领域的进展情况

关键词: 水下机器人     AUVs     ROVs     潜水器     海洋开发     海洋工程    

海洋运载装备技术与产业发展研究

吴有生,曾晓光,徐晓丽,曹博,李洋

《中国工程科学》 2020年 第22卷 第6期   页码 10-18 doi: 10.15302/J-SSCAE-2020.06.002

摘要:

海洋运载装备是建设海洋强国的基础支撑,我国在建设海洋强国、制造强国、交通强国的战略需求下,亟需加快推进海洋运载装备技术创新与产业高质量发展。本文针对我国海洋运载装备技术与产业未来发展问题,研判了世界海洋运载装备在市场、海洋科学研究与资源开发、绿色智能技术方面的发展需求,从船舶与海洋工程高等教育、科学研究、总体设计与总装建造、信息与通信导航、动力与配套机电等方面分析了当前世界海洋运载装备的技术现状与产业格局,总结了世界海洋运载装备的先进前沿技术。研究指出,近期海洋运输装备领域的重点发展方向为极地航行船舶技术、船舶智能制造技术、船舶优化节能技术等5 个方面的突破性关键技术,建议设立智能船舶工程、超级生态环保船舶科技专项、船舶全生命周期运维保障科技专项。本文从顶层设计、政策引导、资金投入、协同创新、人才建设和国际合作等方面提出了促进我国海洋运载装备发展的对策建议,以期为船舶工业主管部门和“产学研用”相关机构前瞻布局技术研究方向提供参考。

关键词: 海洋运载装备     船舶与海洋工程     绿色智能船舶     极地船舶     船舶配套产业    

海洋二号卫星扫描辐射计海洋参数反演算法研究

王振占,鲍靖华,李芸,谌华

《中国工程科学》 2014年 第16卷 第6期   页码 70-82

摘要:

针对海洋二号(HY-2)卫星扫描辐射计,利用辐射传射方程模拟,建立了海面温度、海面风速、大气水汽含量、大气液态水含量和雨率的反演算法,并利用扫描辐射计在轨数据对上述参数进行反演。经过对反演的海面温度和风速全球产品的真实性检验表明,算法合理可行,能够反演大气海洋参数,反演精度满足设计指标需求。目前,其他参数的反演产品的检验还在进行,而且反演算法还要根据对辐射计测量值定标的深入而进一步优化。

关键词: HY-2 卫星     微波辐射计     海洋参数     反演算法    

数据生态系统——数据海

Zi-Kui Liu

《工程(英文)》 2020年 第6卷 第6期   页码 604-608 doi: 10.1016/j.eng.2020.04.009

标题 作者 时间 类型 操作

极区海洋碳池变化性和脆弱性及其探测工程技术

陈立奇

期刊论文

海洋工程装备建造设备发展浅探

彭涛,林忠钦,杨建民,柳存根

期刊论文

我国海洋水色遥感应用工程技术的新进展

潘德炉,白雁

期刊论文

反应性挤出——利用化学和工程学方法解决海洋塑料污染问题

Philippe Dubois

期刊论文

水利水电工程领域的创新材料

Emanuele Quaranta, Peter Davies

期刊论文

Rare tumors: a blue ocean of investigation

期刊论文

我国卫星海洋空间探测

蒋兴伟,林明森,刘建强

期刊论文

on improved performance of an innovative method of using heave response of a non-floating object for ocean

Srinivasan CHANDRASEKARAN, Arunachalam AMARKARTHIK, Karuppan SIVAKUMAR, Dhanasekaran SELVAMUTHUKUMARAN, Shaji SIDNEY

期刊论文

Effects of thermocline on performance of underwater glider’s power system propelled by ocean thermal

Hai YANG, Jie MA,

期刊论文

Demands and challenges for construction of marine infrastructures in China

Huajun LI; Yong LIU; Bingchen LIANG; Fushun LIU; Guoxiang WU; Junfeng DU; Huimin HOU; Aijun LI; Luming SHI

期刊论文

A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

期刊论文

从有缆遥控水下机器人到自治水下机器人

封锡盛

期刊论文

海洋运载装备技术与产业发展研究

吴有生,曾晓光,徐晓丽,曹博,李洋

期刊论文

海洋二号卫星扫描辐射计海洋参数反演算法研究

王振占,鲍靖华,李芸,谌华

期刊论文

数据生态系统——数据海

Zi-Kui Liu

期刊论文