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Dynamicmodeling of awave glider Article

Chun-lin ZHOU, Bo-xing WANG, Hong-xiang ZHOU, Jing-lan LI, Rong XIONG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9, Pages 1295-1304 doi: 10.1631/FITEE.1700294

Abstract: We propose a method to establish a dynamic model for a waveglider, a wave-propelled sea surface vehicleThe vehicle, composed of a surface floatand a submerged glider in sea water, is regarded as a two-particlesystemThe speeds of the vehicleunder different sea conditions can be computed using the model, whichis verifiedThe optimal structure parameters usefulfor vehicle designs can also be obtained from the model.illustratehow to build an analytical dynamics model for the wave glider, whichis a crucial basis for the vehicle

Keywords： Wave-propelled vehicle Dynamic modeling Sea surface vehicle Wave glider

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Development and deep-sea exploration of the Haidou-1

Frontiers of Engineering Management Pages 546-549 doi: 10.1007/s42524-023-0260-6

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

Keywords： hadal zone autonomous and remotely-operated vehicle integrated exploration operation deep dive exceeding

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Deep-Sea Mining Equipment in China: Current Status and Prospect

Yang Jianmin, Liu Lei, Lyu Haining, Lin Zhongqin

Strategic Study of CAE 2020, Volume 22, Issue 6, Pages 1-9 doi: 10.15302/J-SSCAE-2020.06.001

Abstract: Countries in the world are accelerating the development of deep-sea mining equipment nowadays.in China from the perspectives of fundamental scientific research, key technology development, and seakey scientific and technological issues to be resolved, and proposes the developing trends of deep-seaheavy operation equipment, ore transport equipment, and sea surface support vessels.development of deep-sea mining technologies and equipment, so as to realize large-scale sea trials,

Keywords： seabed mineral， deep-sea mining，deep-sea heavy operation equipment，ore transport equipment，sea surface

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of polyfluoroalkyl compounds in water and suspended particulate matter in the river Elbe and North Sea

Lutz AHRENS, Merle PLASSMANN, Zhiyong XIE, Ralf EBINGHAUS

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2, Pages 152-170 doi: 10.1007/s11783-009-0021-8

Abstract: PFCs) in the dissolved and particulate phase and their discharge from the river Elbe into the North SeaThis indicates that the river Elbe acts as a source of PFCs into the North Sea.the concentrations of perfluorobutane sulfonate (PFBS) and perfluorobutanoic acid (PFBA) in the North Sea

Keywords： polyfluoroalkyl compounds (PFCs) perfluorooctane sulfonate (PFOS) perfluorooctanoic acid (PFOA) surface

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Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4, Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract: The sensor, which adheres to an object surface, can detect the surface flow around the object.our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect the surface

Keywords： micro flow sensor flexible sensor surface flow sensing aerodynamic parameter micro aerial vehicle (MAV

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

M. A. Lashteh NESHAEI, F. GHANBARPOUR

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4, Pages 369-379 doi: 10.1007/s11709-017-0398-6

Abstract: In the next stage, following extensive investigations, the bed level changes due to arise in sea levelThe mechanism of beach re-treatment due to a rise in sea level is considered based on the simplifiedComparison of the equilibrium profiles for different cases of sea level rise, clearly shows that because

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

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Development of Marine Equipment for Underwater Stereoscopic Observation

Ma Rui, Zhao Xiutao, Liu Cungen

Strategic Study of CAE 2020, Volume 22, Issue 6, Pages 19-25 doi: 10.15302/J-SSCAE-2020.06.003

Abstract:

Establishing an underwater stereoscopic observation network to obtain scientific, real-time, and comprehensive data is an important direction for understanding and exploiting the ocean in the future. This study first analyzes the need and necessity of developing the underwater stereoscopic observation equipment, then introduces the development status of the equipment in China and abroad, further analyzes the problems faced by China’s field development, and presents the key breakthrough points of marine sensors which serve as the key link for underwater observation. China has made great progress in technologies regarding marine observation platforms, but it still lags behind the world advanced level in key marine sensors and high-precision sensors. The big data obtained from ocean observation does not match the actual demand, and the ocean sensors lack the support from an improved platform. To guide the long-term development of related fields, we suggest that China should support the efficient transformation of research results of key marine sensors, coordinate the management of the marine equipment for underwater stereoscopic observation, and establish a national public test platform for offshore instruments and equipment.

Keywords： ocean observation sea floor observatory network underwater vehicle underwater sensor

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Explicit optimization method for cutting-screw-thread on the basis of dual-RSM

Zhengbao LEI, Shubin WEI, Qingyun DU

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4, Pages 423-430 doi: 10.1007/s11465-010-0109-7

Abstract: Second, the peak acceleration function of each parameter by using response surface method (RSM) is obtained

Keywords： vehicle engineering crash safety explicit method response surface method

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

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3, Pages 754-772 doi: 10.1007/s11709-021-0711-2

Abstract: Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregateTwo different types of fine (coarse) aggregates are considered: sea sand and river sand (natural andstrength of SSRAC increase with decreasing recycled coarse aggregate replacement percentage and increasing seahowever, the deformation differences between coarse aggregate and cement mortar reduce by adopting sea

Keywords： sea sand recycled aggregate concrete recycled coarse aggregate replacement percentage sea sand chloride

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

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1347-1357 doi: 10.1007/s11709-021-0780-2

Abstract: Noncorrosive reinforcement materials facilitate producing structural concrete with seawater and sea sandThis study investigated the properties of seawater and sea sand concrete (SSC), considering the curingXRD patterns identified Friedel’s salt phase due to the chlorides brought by seawater and sea sand.

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

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Introducing Sea Water from Bohai Sea to West China for Its Sustainable Development

Chen Changli

Strategic Study of CAE 2003, Volume 5, Issue 1, Pages 48-55

Abstract: For saving Alxa area from sandstorm a way of introducing sea water from Bohai to Alxa had been proposedIn couclusion, introducing sea water from Bohai Sea to west China is the best way for sustainable development

Keywords： introducing sea water from Bohai sea to west China sustainable development source of sandstorm aridization

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

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1574-z

Abstract:

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

Keywords： Methane Carbon dioxide Diurnal pattern Ensemble empirical mode decomposition South China Sea Sea

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Development of Resource Exploitation Equipment for South China Sea

Tian Chenling , Yang Jianmin , Lin Zhongqin , Li Xin , Cheng Zhengshun , Liu Cungen

Strategic Study of CAE 2023, Volume 25, Issue 3, Pages 84-94 doi: 10.15302/J-SSCAE-2023.03.008

Abstract:

South China Sea is the largest sea of China with over 70 percent of itbeing deep-sea area, which is rich in deep-sea resources, particularly oil, gas, and mineral resourcesfrom other sea areas.a deep-sea aquaculture demonstration and experimental area, and a national deep-sea comprehensive gradually establish a national deep-sea science and technology innovation center, a national deep-sea

Keywords： resources in the south china sea marine equipment deep-sea oil and gas resources deep-sea mineralresources sea test site

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Introducing Sea Water from Bohai Sea to West China And Controlling Desert and Sandstorm

Chen Changli

Strategic Study of CAE 2001, Volume 3, Issue 10, Pages 13-21

Abstract: A scheme of project is envisaged, which introduces sea water from Bohai Sea through north Inner Mengolia

Keywords： introducing sea water from Bohai sea to west China sandstorm wetland vapour exchange system

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

Qisheng TANG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 1, Pages 85-90 doi: 10.15302/J-FASE-2014021

Abstract:

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.

Keywords： marine ecosystem management strategies food resources Yellow Sea