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Liangang Yin, Zheping Yan and Yunzhi Hou
The unmanned underwater vehicle (UUV) group composed of UUVs carrying different kinds of detection equipment is powerful for underwater target searching and detection. In this paper, a formation transformation method, used while the mission of the UUV gr...
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Shufang Bai, Yun Zeng, Fang Dao, Boyi Xiao, Xiang Li and Jing Qian
Studies show that sediment erosion is one of the main factors attributing to hydraulic turbine failure. The present paper represents an investigation into acoustic vibration signals generated by the water flow impacting the hydraulic turbine runner under...
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Dong Lin, Yuhuan Bu, Changyou Xiang, Chang Lu, Huajie Liu and Shenglai Guo
The decomposition of hydrates can cause serious sand production and collapse problems, hindering the long-term effective production of hydrates. This study proposes a theory for framework reconstruction and reinforcement for deep-water hydrate layers bas...
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T. Pradeep, Abidhan Bardhan, Avijit Burman and Pijush Samui
The majority of natural ground vibrations are caused by the release of strain energy accumulated in the rock strata. The strain reacts to the formation of crack patterns and rock stratum failure. Rock strain prediction is one of the significant works for...
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Hanna Ivashchyshyn,Myroslav Sanytsky,Tetiana Kropyvnytska,Bohdan Rusyn
Pág. 39 - 47
The studies have established the influence of various types of supplementary cementitious materials on physical and mechanical properties and structure formation of low-emission multi-component cements. The results of the granulometric composition examin...
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Hee-Joo Cho, Jia Kang, Dohyeong Kim, Arom Seo, Minhan Park, Hungsoo Joo and Kihong Park
Mass concentrations of chemical constituents (organics, nitrate, sulfate, ammonium, chloride, and black carbon (BC)) and the number size distribution of submicrometer particles in the ambient atmosphere were continuously measured in urban Gwangju, Korea,...
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Soroush Ahmadi and Farhang Sefidvash
Pressure drops of water and critical steam flowing in the fixed bed of mono-sized spheres are studied using SolidWorks 2017 Flow Simulation CFD code. The effects of the type of bed formation, flow velocity, density, and pebble size are evaluated. A new e...
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Daniel Guariglia, Alejandro Rubio Carpio and Christophe Schram
Shock-cell noise occurs in aero-engines when the nozzle exhaust is supersonic and shock-cells are present in the jet. In commercial turbofan engines, at cruise, the secondary flow is often supersonic underexpanded, with the formation of annular shock-cel...
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Adrian Wei-Yee Tan, Jun Yan Lek, Wen Sun, Ayan Bhowmik, Iulian Marinescu, Xu Song, Wei Zhai, Feng Li, Zhili Dong, Chris B. Boothroyd and Erjia Liu
Cold-spraying is a relatively new low-temperature coating technology which produces coatings by the deposition of metallic micro-particles at supersonic speed onto target substrate surfaces. This technology has the potential to enhance or restore damaged...
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Yan Peng, Yan Dong, Xingmin Li, Xiaodong Liu, Jin Dai, Chuang Chen, Zipeng Dong, Chuanli Du and Zhaosheng Wang
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