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characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in the South China Sea

《环境科学与工程前沿（英文）》 2022年第16卷第11期 doi: 10.1007/s11783-022-1574-z

摘要：

● Diurnal patterns of CH₄ and CO₂ are clearly extracted using EEMD.

关键词： Methane Carbon dioxide Diurnal pattern Ensemble empirical mode decomposition South China Sea Sea breeze

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The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

《结构与土木工程前沿（英文）》 2017年第11卷第4期页码 369-379 doi: 10.1007/s11709-017-0398-6

摘要： Study of beach morphology has been one of the most important issues in coastal engineering research projects. Because of the existence of two important coastal areas located in the north and south parts of the Iran, in the present study an analysis of the coastal zone behaviour is made. Bed level elevations are measured and compared with the theoretical equilibrium profile. It is shown that the behaviour of the coastal zone in the region is consistent with the Dean (1991) equilibrium profile. In the next stage, following extensive investigations, the bed level changes due to arise in sea level at different locations in the surf zone are estimated. The mechanism of beach re-treatment due to a rise in sea level is considered based on the simplified model of Dean (1991) in which the mass balance of the sediments is taken into account. Comparison of the equilibrium profiles for different cases of sea level rise, clearly shows that because of the sediment transport induced by the fluctuation of the water level, the beach profile in the surf zone changes accordingly resulting in an erosion in the inner region of the surf zone and an accumulation of sediments towards the offshore.

关键词： wave coastal zone beach morphology evolution equilibrium profile sea level rise

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Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregate

《结构与土木工程前沿（英文）》 2021年第15卷第3期页码 754-772 doi: 10.1007/s11709-021-0711-2

摘要： Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregate concrete (SSRAC) are analyzed by a series of axial compression tests. Two different types of fine (coarse) aggregates are considered: sea sand and river sand (natural and recycled coarse aggregates). Variations in SSRAC properties at different ages are investigated. A novel test system is developed via axial compression experiments and the digital image correlation method to obtain the deformation field and crack development of concrete. Supportive results show that the compressive strength of SSRAC increase with decreasing recycled coarse aggregate replacement percentage and increasing sea sand chloride ion content. The elastic modulus of SSRAC increases with age. However, the Poisson’s ratio reduces after 2 years. Typical axial stress–strain curves of SSRAC vary with age. Generally, the effect of coarse aggregates on the axial deformation of SSRAC is clear; however, the deformation differences between coarse aggregate and cement mortar reduce by adopting sea sand. The aggregate type changes the crack characteristics and propagation of SSRAC. Finally, an analytical expression is suggested to construct the long-term stress–strain curve of SSRAC.

关键词： sea sand recycled aggregate concrete recycled coarse aggregate replacement percentage sea sand chloride ion content long-term mechanical properties stress–strain curve

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Compressive behavior and microstructure of concrete mixed with natural seawater and sea sand

《结构与土木工程前沿（英文）》 2021年第15卷第6期页码 1347-1357 doi: 10.1007/s11709-021-0780-2

摘要： Noncorrosive reinforcement materials facilitate producing structural concrete with seawater and sea sand. This study investigated the properties of seawater and sea sand concrete (SSC), considering the curing age (3, 7, 14, 21, 28, 60, and 150 d) and strength grade (C30, C40, and C60). The compressive behavior of SSC was obtained by compressive tests and digital image correction (DIC) technique. Scanning electron microscope (SEM) and X-ray powder diffraction (XRD) methods were applied to understand the microstructure and hydration products of cement in SSC. Results revealed a 30% decrease in compressive strength for C30 and C40 SSC from 60 to 150 d, and a less than 5% decrease for C60 from 28 to 150 d. DIC results revealed significant cracking and crushing from 80% to 100% of compressive strength. SEM images showed a more compact microstructure in higher strength SSC. XRD patterns identified Friedel’s salt phase due to the chlorides brought by seawater and sea sand. The findings in this study can provide more insights into the microstructure of SSC along with its short- and long-term compressive behavior.

关键词： seawater and sea sand concrete compressive strength strain field microstructure hydration products

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海水西调是西北和华北北部可持续发展的需要

陈昌礼

《中国工程科学》 2003年第5卷第1期页码 48-55

摘要：

着重讨论第三、第四纪以来，特别是人类历史记载以来自然干旱化进程是缓慢而深刻的并且是不可逆转的等问题。进一步认识西北和华北北部三套面向西北迎风八字形高山冷凝系统的地利条件。恰逢今年3.20跨国沙尘暴事件，重点提出拯救阿拉善和额济纳旗的调水措施。文章还回答了四点质询。结论指出欲缓解或局部逆转西北干旱化进程唯有海水西调，这是西北可持续发展的基础。

关键词：海水西调可持续发展沙尘源干旱化

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我国南海资源开发装备发展研究

田辰玲 ,杨建民 ,林忠钦 ,李欣 ,程正顺 ,柳存根

《中国工程科学》 2023年第25卷第3期页码 84-94 doi: 10.15302/J-SSCAE-2023.03.008

摘要：

南海是我国面积最大的海域，超过70%为深海区域，蕴藏着丰富的深海资源，尤其是深海油气、深海矿产等。高温、高湿、高盐是我国南海区别于其他海域的主要特征，研究适用于南海资源开发的海洋装备具有重要的战略意义。本文首先分析总结了国内外主要海洋资源开发装备的发展现状及趋势，详细分析了南海资源开发装备的发展需求与关键技术，提出了南海资源开发装备的发展目标和发展思路等。最后从装备与产业发展角度，提出了南海资源开发装备产业的发展建议：依托海南省建设深海油气开发关键技术研发中心和应急救援中心、深海矿产资源开发装备研发中心、深海养殖示范区和试验区以及国家南海深远海海上综合试验场等，逐步建设“国家深海科技创新中心”“国家深海工程装备保障基地”“国家深海科技产业中心”等。

关键词：南海资源；海洋装备；深海油气资源；深海矿产资源；海上试验场

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我国深海矿产资源开发装备研发现状与展望

杨建民,刘磊,吕海宁,林忠钦

《中国工程科学》 2020年第22卷第6期页码 1-9 doi: 10.15302/J-SSCAE-2020.06.001

摘要：

浩瀚的大洋底部蕴藏着丰富的矿产资源，其种类多、储量大、品位高，具有巨大的开发利用前景，世界各国都在加快深海矿产资源开发装备的研制。本文系统分析了国内外深海矿产资源开发技术装备的发展现状，从基础科学问题研究、关键技术研发、海上试验验证等角度剖析我国技术装备存在的不足，总结归纳亟待解决的关键科学技术问题，并据此提出深海采矿重载作业装备、矿石输送装备、水面支持装备的发展方向。研究提出深海矿产资源开发秉持重装、协同、智能、绿色的发展理念，加速推进核心技术创新和装备自主研发；建议开展深海多金属结核开采示范工程建设，加快推动深海矿产资源开发关键技术装备研发，实现规模化海上试采，并着眼长期生产作业开展系统设计，促进商业化开采进程。

关键词：海底矿产，深海采矿，深海重载作业装备，矿石输送装备，水面支持装备

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海水西调与我国沙漠和沙尘暴的根治

陈昌礼

《中国工程科学》 2001年第3卷第10期页码 13-21

摘要：

提出内陆盆地增加降水量的三项必要和充分条件，即西风带、高山山脉冷凝作用和广大湿地提供水气源。提出海水西调工程，从渤海西北海岸提水到大兴安岭南端，经内蒙古北部到达新疆，目的是恢复和扩大西北湿地，治理沙漠和沙尘暴。工程将产生十大经济和生态效益，其中4条效益是不可替代的。

关键词：海水西调沙尘暴湿地水气交换系统

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strategies of marine food resources under multiple stressors with particular reference of the Yellow Sea

Qisheng TANG

《农业科学与工程前沿（英文）》 2014年第1卷第1期页码 85-90 doi: 10.15302/J-FASE-2014021

摘要：

In this study two main management strategies are discussed: one is to develop resource conservation-based capture fisheries, and the other is to develop environmentally friendly aquaculture. During the resource recovery period, the development of environmentally friendly aquaculture should be encouraged, especially in integrated multi-trophic aquaculture, which is adaptive, efficient and sustainable. For future development and better understanding the ecosystem, it is necessary to further strengthen basic research.

关键词： marine ecosystem management strategies food resources Yellow Sea

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Dynamics simulation of bottom high-sediment sea water movement under waves

Xueyi YOU , Wei LIU , Houpeng XIAO ,

《结构与土木工程前沿（英文）》 2009年第3卷第3期页码 312-315 doi: 10.1007/s11709-009-0037-y

摘要： The movement of bottom high-sediment sea water under water waves, especially that of the high-sediment water layer close to the sea bottom, is important to the resuspension and settlement of sediment. Supposing that the high-sediment sea water is a Newtonian fluid, based on Navier-Stokes (N-S) theory, the movement of the interfaces of air-water and water-sediment water was tracked by the volume of fluid (VOF) method. The velocity field of sediment water was simulated by considering the effect of water waves. The results show that the movement of sediment water is very different from that of sea water, which provides a solid basis for understanding the resuspension and settlement of sediment and the formation of bottom stripe, and the VOF method can trace the movement of the two interfaces simultaneously; the movement of the air-water interface has a strong effect on that of the water-sediment water interface, while the effect of the water-sediment water interface movement on the air-water interface is not obvious.

关键词： volume of fluid (VOF) method high sediment sea water numerical simulation interface trace Navier-Stokes (N-S) theory

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海水西调是西部大开发的战略性基础工程

陈昌礼

《中国工程科学》 2003年第5卷第10期页码 14-19

摘要：

文章认为海水西调工程是西部大开发的战略性基础工程。重点阐述海水西调对内蒙古产生的效益和陇东和贵州省等生态大移民的战略效益。并再度讨论了海水西调与盐碱化问题。解释了工程取得共识需要20年的原因，建议尽快进行多学科综合研究并争取早日动工，造福西北。

关键词：海水西调沙尘暴西部大开发地下水

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海陆关联工程科技发展战略

“中国海洋工程与科技发展战略研究”海陆关联课题组

《中国工程科学》 2016年第18卷第2期页码 49-54 doi: 10.15302/J-SSCAE-2016.02.005

摘要：

海陆关联工程是指在建设和运行中同时涉及陆域和海域并发挥显著作用或产生重大影响的工程项目，主要包括港口、跨海桥梁、海底隧道、填海工程等。近年来，我国海陆关联工程的建设快速发展，工程技术的总体水平得到了提高，在沿海经济发展中发挥了显著的作用，但也存在发展不平衡、协调性较差、环境和安全管理相对薄弱等问题。未来我国应逐步推进从沿海到深海大洋、从示范试点到全面铺开、从单一工程到复合工程的海陆关联工程体系的建设，重点在沿海产业涉海工程布局、海陆物流联运工程、海岛开发与保护工程、沿海重大防灾减灾工程等领域强化海陆关联工程的建设。

关键词：海陆关联工程海岸带海洋工程陆海统筹

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Development and deep-sea exploration of the Haidou-1

《工程管理前沿（英文）》页码 546-549 doi: 10.1007/s42524-023-0260-6

摘要： Development and deep-sea exploration of the Haidou-1

关键词： hadal zone autonomous and remotely-operated vehicle integrated exploration operation deep dive exceeding 10000 meters

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渤海海洋资源可持续利用研究

马彩华,游奎,戴桂林

《中国工程科学》 2010年第12卷第6期页码 90-93

摘要：

通过分析渤海的资源现状，发现造成渤海资源不可持续的主要原因在于人为因素，提出了加大力度治理污染，改善渤海生态环境；在可持续发展层面，从生态原则考虑资源的可持续利用，如土著种及生态位原则、建设海洋牧场原则、休渔期与渔具优化原则、生态补偿原则、公众参与原则，为政府有关部门提供决策参考依据。

关键词：渤海资源可持续利用对策与建议

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The abundance, characteristics and diversity of microplastics in the South China Sea: Observation around

Hongzhe Chen , Sumin Wang , Huige Guo , Yunlong Huo , Hui Lin , Yuanbiao Zhang

《环境科学与工程前沿（英文）》 2022年第16卷第1期页码 9-9 doi: 10.1007/s11783-021-1443-1

摘要： Surrounded by emerging markets with considerable plastic consumption, the South China Sea has been a focus area of microplastic research. A survey on the floating microplastics (>0.3 mm) and microplastics ingested by fish and mollusks was conducted around three remote islands here. Compared with the results from several previous studies, a high abundance of floating microplastics (with a median of 1.9 × 105 items/km2 or 0.7 items/m3) was observed, revealing another “hot spot” for microplastics. Polyolefin, especially polypropylene, was the main component. The diversity index and evenness index were calculated and evaluated based on the composition of microplastics. The characteristic peaks of Raman spectra concerning pigmented microplastics were provided. Transparent sheets/films were predominant in the water sample, which was quite different from a similar study in this sea area (8.9% for film), and only 16.4% of floating microplastics (>0.3 mm) were fibers/lines, implying that the main sources of floating microplastics (>0.3 mm) might be household/agricultural consumption activities. The transparent fiber/line was also dominant in organisms. It is suggested that the main sources of microplastics ingested by organisms might be both fabric fibers and fishing/aquaculture.

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标题作者时间类型操作

characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in the South China Sea

期刊论文

The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

期刊论文

Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregate

期刊论文

Compressive behavior and microstructure of concrete mixed with natural seawater and sea sand

期刊论文

海水西调是西北和华北北部可持续发展的需要