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Marek Kalenik
The paper presents the analysis of results of empirical investigations of a negative pressure difference in vacuum pipelines with internal diameters of 57, 81, 102 mm. The investigations were performed in an experimental installation of a vacuum sewage s...
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Rui Liu, Zhongjun Liu, Jiale Zhao, Qi Lu, Lijing Liu and Yinghang Li
In disturbance-assisted seed filling vacuum seed-metering devices, the suction hole causes difficulty in quickly and stably sucking seeds when used for high-speed seeding and the large working negative pressure demand is used. To address this difficulty,...
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Xin Lan, Wenxiong Jia, Guofeng Zhu, Yue Zhang, Zhijie Yu and Huifang Luo
Stable isotopes of precipitation play an important role in understanding hydrological and climatic processes of arid inland river basins. In order to better understand the difference of regional water cycle and precipitation patterns, precipitation sampl...
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Takeshi Yasunaga, Takafumi Noguchi, Takafumi Morisaki and Yasuyuki Ikegami
Ocean thermal energy conversion (OTEC) harvests the power from the thermal energy in the ocean, which is reserved in the ocean as the temperature difference between warm surface and cold deep seawaters. In the energy conversion, the heat exchangers trans...
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Guirong Xu, Xinan Yue, Wengang Zhang and Xia Wan
Atmosperic profiles derived from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) measurements make up for the lack of operational radiosonde soundings with a high spatiotemporal distribution, and th...
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Lin Sun, Junchao Li and Haoyu Lin
Earthquakes impact the stability of municipal solid waste (MSW) landfills, especially those with high water levels, and may further lead to disastrous landslides. Numerical analysis offers an efficient and cost-effective way to study the seismic stabilit...
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Weihong Kong and You Li
The large reverse flow region of the rotor with a high advance ratio is an important factor that affects the performance improvement of helicopters. This paper examines the dynamic stall of the airfoil in the reverse flow region of the rotor to develop a...
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Thomas Dippong, Cristina Mihali and Alexandra Avram
This study closely analyzes the water quality dynamics of Teceu Lake, situated in a Natura 2000 protected area in Romania. The research investigates seasonal variations and interconnections with groundwater, assessing various ecological impacts. The main...
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Zan Xu, Penglu Cui, Wengui Cao, Xingyi Zhang and Jiachao Zhang
The vacuum preloading method effectively strengthens soft soil foundations with vertical drainage, which produces a smear effect when laying sand drains. Meanwhile, the seepage of pore water and soil deformation during consolidation exhibit nonlinear cha...
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Zhaoyong Mao, Tianqi Zhang, Guangyong Yang and Wenlong Tian
Gurney flaps can enhance the hydrodynamic efficiency of airfoils, and they are currently used in several applications, including racing cars and wind turbines. However, there is a lack of studies in the literature on the application of Gurney flaps on th...
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Bonggil Hyun, Pung-Guk Jang, Kyoungsoon Shin, Moonkoo Kim, Ju-Hak Jung, Hyung-Gon Cha and Min-Chul Jang
Copepods, the dominant member of zooplankton and major grazers of phytoplankton in the pelagic ecosystem, are at risk from exposure to antifouling biocides. To evaluate the developmental toxicity of antifouling biocides (Diuron, Irgarol 1051, Sea-nine 21...
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Meixiang Gu, Xiaocong Cai, Qiang Fu, Haibo Li, Xi Wang and Binbing Mao
The three-dimensional finite difference method was used in this study to analyze the deformation and stresses of a passive pile under surcharge load in extensively deep soft soil. A three-dimensional numerical model was proposed and verified by a field t...
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Yunji Kim, Junho Suh, Bora Lee, Yondo Chun, Keejun Park and Yonghun Yu
This study analyzed adhesive wear in periodic sliding motion using a quasi-static deterministic wear model that considered changes in the point of contact of asperities as well as changes in the surface and statistical parameters. The contact pressure wa...
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Kazuki Hokari, Jonas A. Pramudita, Masato Ito, Kazuya Okada and Yuji Tanabe
In this study, a grasping motion simulation method based on finite element analysis was developed for the virtual evaluation of gripping comfort while gripping a cylindrical object. The validity of the grasping motion simulation was verified by comparing...
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Kyong-Hyon Kim and Kyeong-Ju Kong
In order to design a diesel engine system and to predict its performance, it is necessary to analyze the gas flow of the intake and exhaust system. Gas flow analysis in a three-dimensional (3D) format needs a high-resolution workstation and an enormous a...
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Bo Huang, Ulrich Cubasch and Yan Li
Eight current re-analyses—NCEP/NCAR Re-analysis (NCEPI), NCEP/DOE Re-analysis (NCEPII), NCEP Climate Forecast System Re-analysis (CFSR), ECMWF Interim Re-analysis (ERA-Interim), Japanese 55-year Re-analysis (JRA-55), NASA Modern-Era Retrospective A...
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R. CASTRO,A. MASCARENHAS,A. MARTÍNEZ DÍAZ DE LEÓN,R. DURAZO,E. GIL SILVA
Meteorological data were recorded at eight stations located along the coast of the Pacific Ocean and three along the coast of the Gulf of California, aimed to assess the spatial influence of Santa Ana weather conditions in the B...
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Qingxiao Meng, Yunsheng Yao, Wulin Liao, Lifen Zhang and Xuehui Dang
Using the test?retest data of the relative gravity field and earthquake monitoring catalog of the Three Gorges Reservoir (TGR) from October 2001 to October 2009, this paper systematically analyzes the changes in the gravity field in the head area of the ...
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MyeongHee Han, SungHyun Nam, Yang-Ki Cho, Hyoun-Woo Kang, Kwang-Young Jeong and Eunil Lee
The interannual variability of winter sea levels averaged over the northeast Asian marginal seas, consisting of the Yellow Sea, East China Sea, and the East Sea (ES), was investigated. The spatial-mean sea level in winter observed using satellite altimet...
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