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Journal articles on the topic 'Seawater – Analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Crompton, T. R., and P. J. Worsfold. "Analysis of seawater." Analytica Chimica Acta 237 (1990): 510. http://dx.doi.org/10.1016/s0003-2670(00)83958-6.

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2

Kim, Choong-Gon, Jae Choi, Sae-Kwang Ku, and Chang-Hyun Song. "Immunostimulatory Effects of Korean Mineral-Rich Seawaters on Cyclophosphamide-Induced Immunosuppression in Mice." Marine Drugs 22, no. 6 (2024): 234. http://dx.doi.org/10.3390/md22060234.

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Deep seawater (DS), obtained from a depth over 200 m, has health benefits due to its rich nutrients and minerals, and intake of DS has shown diverse immunomodulatory effects in allergies and cancer. Therefore, the immunostimulatory effects of Korean mineral-rich seawaters were examined in a cyclophosphamide (CPA)-induced immunosuppression model. Three samples of Korean seawater, namely DS from the East Sea off the coasts of Pohang (PDS) and Uljin (UDS), and seawater from the West Sea off the coast of Boryeong (BS), were collected. The seawaters were abundant in several minerals (calcium, iron,

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3

Wang, Shu Xun, Ying Xia Miao, Jian An Hao, Jing Wang, and Yu Shan Zhang. "Analysis on the Technological Advantages of Domestic Seawater." Applied Mechanics and Materials 737 (March 2015): 692–95. http://dx.doi.org/10.4028/www.scientific.net/amm.737.692.

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The principle of domestic seawater technology is to replace fresh water by seawater. This paper introduces the features and demonstration scale of domestic seawater technology. Considering the successful seawater toilet-flushing in Hong Kong, comparison and economic analysis on the cases of seawater, recycled water and tap water are done. The result shows domestic seawater technology is an economical and efficient water saving technology.

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4

Hilmi, Endang, Cecep Kusmana, Endang Suhendang, and Iskandar Iskandar. "CORRELATION ANALYSIS BETWEEN SEAWATER INTRUSION AND MANGROVE GREENBELT." Indonesian Journal of Forestry Research 4, no. 2 (2017): 151–68. https://doi.org/10.59465/ijfr.2017.4.2.151-168.

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Seawater intrusion is an entry process of seawater to land. Many factors have caused seawater intrusion from freshwater exploitation until mangrove degradation. Mangrove ecosystem is a type of forest ecosystem which has an ability to reduce seawater intrusion. This paper analyzes the estimation and prediction of seawater intrusion and correlation between widths of mangrove with seawater intrusion. The relation analysis between the width of mangrove greenbelt with seawater intrusion used an equation model to predict seawater intrusion. The research method used sampling technique, system analysi

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5

He, Yuntao, Yongjun Liu, Chang Liu, and Duan Li. "Analysis of Transmission Depth and Photon Number in Monte Carlo Simulation for Underwater Laser Transmission." Remote Sensing 14, no. 11 (2022): 2565. http://dx.doi.org/10.3390/rs14112565.

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The modeling of laser transmission characteristics in complex seawater is fundamental for bathymetric and oceanographic laser detection systems. Because the factors affecting laser transmission in seawater are independent of one another, firstly, in this paper, a Monte Carlo model of laser propagation in seawaters with suspended matter was established to study the influence of suspended matter with specific radius on the underwater laser transmission. Secondly, the influence of transmission depth and the number of photons on the laser extinction coefficients of seawater containing different co

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6

Hilmi, Endang, Cecep Kusmana, Endang Suhendang, and Iskandar Iskandar. "CORRELATION ANALYSIS BETWEEN SEAWATER INTRUSION AND MANGROVE GREENBELT." JOURNAL OF FORESTRY RESEARCH 4, no. 2 (2017): 151–68. https://doi.org/10.20886/ijfr.2017.4.2.151-168.

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  Seawater intrusion is an entry process of  seawater to land. Many factors have caused seawater intrusion from freshwater exploitation until mangrove degradation.  Mangrove ecosystem is a type of  forest ecosystem which has an ability to reduce seawater intrusion. This paper analyzes the estimation  and prediction of  seawater intrusion and correlation between widths of  mangrove with seawater intrusion.   The relation analysis between the width of  mangrove greenbelt with seawater intrusion used an equation model to predict seawater intrusion

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7

Yao, Wensheng, and Robert H. Byrne. "Simplified seawater alkalinity analysis." Deep Sea Research Part I: Oceanographic Research Papers 45, no. 8 (1998): 1383–92. http://dx.doi.org/10.1016/s0967-0637(98)00018-1.

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8

Wangersky, PeterJ. "Methods of seawater analysis." TrAC Trends in Analytical Chemistry 4, no. 1 (1985): xx. http://dx.doi.org/10.1016/0165-9936(85)80011-x.

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9

Xu, Zexuan, Bill X. Hu, and Ming Ye. "Numerical modeling and sensitivity analysis of seawater intrusion in a dual-permeability coastal karst aquifer with conduit networks." Hydrology and Earth System Sciences 22, no. 1 (2018): 221–39. http://dx.doi.org/10.5194/hess-22-221-2018.

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Abstract. Long-distance seawater intrusion has been widely observed through the subsurface conduit system in coastal karst aquifers as a source of groundwater contaminant. In this study, seawater intrusion in a dual-permeability karst aquifer with conduit networks is studied by the two-dimensional density-dependent flow and transport SEAWAT model. Local and global sensitivity analyses are used to evaluate the impacts of boundary conditions and hydrological characteristics on modeling seawater intrusion in a karst aquifer, including hydraulic conductivity, effective porosity, specific storage,

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10

Pawlowicz, R., D. G. Wright, and F. J. Millero. "The effects of biogeochemical processes on oceanic conductivity/salinity/density relationships and the characterization of real seawater." Ocean Science 7, no. 3 (2011): 363–87. http://dx.doi.org/10.5194/os-7-363-2011.

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Abstract. As seawater circulates through the global ocean, its relative composition undergoes small variations. This results in changes to the conductivity/salinity/density relationship, which is currently well-defined only for Standard Seawater obtained from a particular area in the North Atlantic. These changes are investigated here by analysis of laboratory experiments in which salts are added to seawater, by analysis of oceanic observations of density and composition anomalies, and by mathematical investigation using a model relating composition, conductivity, and density of arbitrary seaw

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11

Qi, Xiao Ni. "Performance Analysis of Seawater Cooling Tower." Applied Mechanics and Materials 182-183 (June 2012): 598–601. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.598.

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Due to salt deposition on the packing and subsequent airflow block, thermal performance of the tower declines after a period of time. Eliminating the fill makes the tower fully empty which is of far-reaching significance in circulating seawater with high temperature, high turbidity. Application of PCTs to industry is not practical due to salt deposition on the packing and subsequent blockage. Analysis of seawater characteristics main includes temperature, salinity, density, specific heat and other properties, which is of great significance in the seawater cooling performance. The results provi

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12

Wang, K. L., Z. G. Chai, H. H. Zhu, and H. C. Wang. "Modeling and simulation analysis of hydroacoustic field under ice." Journal of Physics: Conference Series 2718, no. 1 (2024): 012079. http://dx.doi.org/10.1088/1742-6596/2718/1/012079.

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Abstract In order to study the effect of polar ice on sound propagation in seawater, the finite element method was used to establish a seawater sound propagation model with and without ice, and the influence of the presence of ice on the seawater sound propagation law was analyzed. The simulation results show that the energy of sound propagation in seawater has a certain loss when there is an ice layer compared with the case of no ice layer. Through frequency domain analysis, the propagation process of sound energy in seawater can be clearly seen. Normally, the sound energy generated by a poin

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13

Ming, Yan Zhang. "Electrochemical Experimental Analysis of Different Coatings." Journal of Scientific Research and Reports 30, no. 6 (2024): 593–99. http://dx.doi.org/10.9734/jsrr/2024/v30i62077.

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Aims: This paper investigates four different metallic coatings of 17-4PH stainless steel and tests them in seawater as a means of preventing seawater corrosion of turbine upper stage blades.. Study Design: The self-corrosion current densities of the different specimens in the synthetic seawater solution were measured using open circuit, polarization curves, and electrochemical AC impedance spectra. Place and Duration of Study: Department Between July 10, 2023, and August 10, 2023, the Laboratory of the School of Mechanics, North China University of Water Resources and Hydropower (NUWRH). Metho

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14

Pawlowicz, R., D. G. Wright, and F. J. Millero. "The effects of biogeochemical processes on oceanic conductivity/salinity/density relationships and the characterization of real seawater." Ocean Science Discussions 7, no. 2 (2010): 773–836. http://dx.doi.org/10.5194/osd-7-773-2010.

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Abstract. As seawater circulates through the global ocean, its relative composition undergoes small variations. This results in changes to the conductivity/salinity/density relationship, which is currently well-defined only for Standard Seawater obtained from a particular area in the North Atlantic. These changes are investigated here by analysis of laboratory experiments in which salts are added to seawater, by analysis of oceanic observations of density and composition anomalies, and by mathematical investigation using a model relating composition, conductivity, and density of arbitrary seaw

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15

Mohd Razali, Siti Harliza, Razali Ngah, Yoshihide Yamada, and Kamilia Kamardin. "Performance analysis of patch antenna for underwater wireless communication in seawater." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 857. http://dx.doi.org/10.11591/ijeecs.v22.i2.pp857-865.

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<span lang="EN-US">Underwater wireless communication in seawater is becoming more interesting and challenging in recent years. The development of antenna for underwater wireless communication in seawater at 900 MHz UHF range frequency is implemented by using patch antenna. In this paper, the antennas were designed using FEKO, an electromagnetic simulation software, and a suitable size for rectangular patch antenna for seawater application was developed to study the relevance between λ0 with W and L in seawater. The difference between the patches in free space and seawater was the L size,

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Razali, Siti Harliza Mohd, Razali Ngah, Yoshihide Yamada, and Kamilia Kamardin. "Performance analysis of patch antenna for underwater wireless communication in seawater." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 857–65. https://doi.org/10.11591/ijeecs.v22.i2.pp857-865.

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Underwater wireless communication in seawater is becoming more interesting and challenging in recent years. The development of antenna for underwater wireless communication in seawater at 900 MHz UHF range frequency is implemented by using patch antenna. In this paper, the antennas were designed using FEKO, an electromagnetic simulation software, and a suitable size for rectangular patch antenna for seawater application was developed to study the relevance between λ0 with W and L in seawater. The major difference between the patches in free space and seawater was the feedpoint distance

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17

Hastuti, Yuni Puji, Yuli Siti Fatma, Hardi Pitoyo, Yusli Wardiatno, and Siska Tridesianti. "Bacterial and plankton communities in mariculture water sources: a case study in Nampu and Sembukan seawaters, Wonogiri, Indonesia." Natura Croatica 30, no. 2 (2021): 351–66. http://dx.doi.org/10.20302/nc.2021.30.22.

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Seawaters in Indonesia, part of the tropical marine ecosystem, have great microbial and plankton diversity. Seawater is used as a water source for marine aquacultures, such as shrimp, milkfish, lobster, and mud crab. Sustainability of environmental resources for supporting aquaculture activities can be assessed by analyzing the actual conditions of the water source environment, including bacterial and plankton communities. However, the characteristics of bacteria and plankton communities in Indonesian seawaters have not been well documented. In this study, we investigated the bacterial and pla

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18

Miao, Ying Xia, Shu Xun Wang, Lu Yang Li, Tian Xiang Jiang, and Jing Wang. "Marine Environment Impact Analysis and Countermeasures on Sea Water Utilization Project." Applied Mechanics and Materials 587-589 (July 2014): 882–85. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.882.

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Sea water utilization projects are catching attention as the seawater utilization industry continues to grow. This paper analyzes the marine environment impact from different kind of sea water utilization projects such as seawater desalination, direct seawater utilization and seawater chemical resource extraction, and brieflypresents relevant countermeasures.

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19

Yusuf, Hamzah, Akhmad Azis, Sugiarto Badaruddin, Andi Muhammad Subhan Saiby, Zulvyah Faisal, and Zubair Saing. "Physical modeling of sand columns application in recharge reservoir to prevent seawater intrusion." Water Supply 22, no. 2 (2021): 2170–78. http://dx.doi.org/10.2166/ws.2021.365.

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Abstract This study aims to provide visual evidence by the physical simulation to demonstrate the sand column performance of a recharge reservoir to control seawater encroachment and confirm some previous studies. In this analysis, a two-dimensional sand tank illustrates the sand column's role in overcoming seawater intrusion. Besides using dyes, the sand tank is also fitted with sensors to observe the length of seawater penetration. Furthermore, the simulation using SEAWAT numerical modeling is used as a reference in this analysis. The criteria analyzed were the number of sand columns, the re

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20

Perdikaki, Martha, Efthymios Chrysanthopoulos, Konstantinos Markantonis, and Andreas Kallioras. "Groundwater Flow Model Calibration Using Variable Density Modeling for Coastal Aquifer Management." Hydrology 11, no. 4 (2024): 59. http://dx.doi.org/10.3390/hydrology11040059.

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The paper investigates the mechanism of seawater intrusion and the performance of free and open-source codes for the simulation of variable density flow problems in coastal aquifers. For this purpose, the research focused on the Marathon Watershed, located in the northeastern tip of Attica, Greece. For the simulation of the groundwater system, MODFLOW, MT3DMS and SEAWAT codes were implemented, while sensitivity analysis and calibration processes were carried out with UCODE. Hydraulic head calibration was performed on the MODFLOW model, and TDS concentration was validated in the SEAWAT model. T

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21

Sugio, Satora, Kinya Nakada, and Daniel W. Urish. "Subsurface Seawater Intrusion Barrier Analysis." Journal of Hydraulic Engineering 113, no. 6 (1987): 767–79. http://dx.doi.org/10.1061/(asce)0733-9429(1987)113:6(767).

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22

Koide, Min, Edward D. Goldberg, and Richard Walker. "The analysis of seawater osmium." Deep Sea Research Part II: Topical Studies in Oceanography 43, no. 1 (1996): 53–55. http://dx.doi.org/10.1016/0967-0645(95)00082-8.

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23

Ke, Lina, and Huicheng Zhou. "Model for the Assessment of Seawater Environmental Quality Based on Multiobjective Variable Fuzzy Set Theory." Abstract and Applied Analysis 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/652083.

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With the rapid development of marine economy industry, the activities for exploring and exploiting the marine resources are increasing, and there are more and more marine construction projects, which contribute to the growing trend of eutrophication and frequent occurrence of red tide. Thus, seawater quality has become the topic which the people generally cared about. The seawater quality evaluation could be considered as an analysis process which combined the evaluation indexes with certainty and evaluation factors with uncertainty and its changes. This paper built a model for the assessment

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24

Chen, Yuqi, and Richard Compton. "Direct Electrochemical Analysis in Seawater: Evaluation of Chloride and Bromide Detection." Chemosensors 11, no. 5 (2023): 297. http://dx.doi.org/10.3390/chemosensors11050297.

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Chloride and bromide are two of the most abundant anions found in seawater, and knowledge of their concentrations is essential for environmental monitoring. However, the analysis of chloride and bromide in seawater is challenging due to the complex nature of the seawater matrix. From an electrochemical perspective, we investigate the suitability of three types of electrode (Au, glassy carbon and Pt) for the analysis of Cl− and/or Br− in seawater. With the understanding of their electrochemical behaviours in artificial seawater (ASW), optimal voltammetric procedures for their detection are deve

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25

Chen, Baokui, Yujie Du, Yan Shi, and Li Fan. "Seismic Analysis of Isolated Continuous Bridge considering Influence of Seawater and Site Condition." Shock and Vibration 2021 (August 23, 2021): 1–17. http://dx.doi.org/10.1155/2021/7599715.

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The effects of seawater and site conditions on the seismic response of the isolated continuous girder bridge are evaluated in this study. The seawater-muddy soil-isolated bridge coupling model is built in the dynamic analysis software ADINA, and the external seismic wave input is realized by the seismic wave motion analysis program. The influences of seawater and muddy soil on the seismic response of isolated continuous girder bridges are determined by comparing different offshore site models. The results indicated that the seawater and the muddy soil magnify the displacement of the seabed. Th

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26

Huang, Kun, Xingyu Zhou, Cheng Huang, Lin Wang, Dequan Li, and Jinrei Zhao. "Heat Transfer Analysis and Operation Optimization of an Intermediate Fluid Vaporizer." Energies 16, no. 3 (2023): 1383. http://dx.doi.org/10.3390/en16031383.

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An intermediate fluid vaporizer (IFV) is a typical vaporizer of liquefied natural gas (LNG), which is used in a large number of LNG terminals. Since it requires a large supply of seawater during its operation, it generates a lot of energy consumption. In this study, to reduce the seawater consumption in the regasification system, the heat transfer process was first numerically calculated, and the heat transfer coefficient of the IFV was determined for different seawater inlet temperatures, seawater flow rates, and LNG flow rates. The calculation results of the heat transfer coefficient were in

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27

Yang, Jeong-Seok. "Analysis of Promising Country for Seawater Desalination Plant Using Delphi Method." Journal of the Korean Society of Civil Engineers 33, no. 6 (2013): 2351. http://dx.doi.org/10.12652/ksce.2013.33.6.2351.

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28

Wardhani, Maulinna Kusumo, and Dyah Ayu Sulistiyorini. "Assessment of the Quality of Raw Water for Salt Production in Pangarengan, Sampang, East Java." IOP Conference Series: Earth and Environmental Science 1298, no. 1 (2024): 012026. http://dx.doi.org/10.1088/1755-1315/1298/1/012026.

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Abstract Seawater is the primary raw material for the production of sea salt. Seawater quality dramatically affects to salt production. The purpose of this study was to evaluate the seawater’s quality as a raw material for salt production in Pangarengan, Sampang, East Java, Indonesia. The assessment of water quality in this study includes physical and chemical characteristics. The location of this research was in the salt fields that close to settlements with high anthropogenic activity. Sampling points were the seawater inlet (P1), reservoir plot/bozem (P2), and evaporation plot (P3). Assessm

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29

Sudipa, Nyoman. "Analysis of Seawater Quality on the Sustainability of Seaweed Cultivation on the coast of Nusa Penida, Bali." Advances in Tropical Biodiversity and Environmental Sciences 8, no. 3 (2025): 129–34. https://doi.org/10.24843/atbes.2024.v08.i03.p03.

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Seaweed is a valuable economic resource for the coastal communities of Nusa Penida, which can significantly improve people's lives. Seaweed's existence depends on the quality of the coastal waters of Nusa Penida. This study aims to assess the Nusa Penida coast in support of the sustainability of seaweed cultivation. This research uses a quantitative approach to analyze seawater quality. The results of the calculation of the pollution index show that the seawater quality on the coast of Nusa Penida is in excellent condition, meeting water quality standards based on water quality standards for m

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30

Rho, Taekeun, Dong-Jin Kang, Eun-Soo Kim, et al. "Development of Reference Material Using Natural Seawater for Nutrient Analysis in Seawater." Sea 20, no. 1 (2015): 29–35. http://dx.doi.org/10.7850/jkso.2015.20.1.29.

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31

Riastuti, Rini, Alfian Alfian, Rizky Rama Putra Manurung, Wahyu Budiarto, and Agus S. Kaban. "Corrosion Failure Analysis of CuNi 90/10 on Seawater Fire Protection System." Jurnal Pendidikan Teknologi Kejuruan 5, no. 4 (2022): 121–26. http://dx.doi.org/10.24036/jptk.v5i4.30423.

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The failure analysis of a seawater fire protection system of oil and gas processing facility was observed in this paper. The fire protection pipe line & hull seawater filter were made of CuNi 90/10. Severe deep pits and fracture were observed at bottom of jockey pump spool pipe and hull seawater filter. Visual observation, scanning electron microscope, energy dispersive spectroscopy, x-ray diffractometry were employed in the present failure analysis. The oxygen exposure on CuNi 90/10 of Seawater Fire Protection system had a significant impact on failure and was exacerbated by the presence

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32

Wanninkhof, Rik, James R. Ledwell, and Andrew J. Watson. "Analysis of sulfur hexafluoride in seawater." Journal of Geophysical Research 96, no. C5 (1991): 8733. http://dx.doi.org/10.1029/91jc00104.

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33

Koulouridakis, Pavlos E., Nikolaos G. Kallithrakas‐Kontos, and Vasilios C. Gekas. "Seawater Mercury Analysis at PPB Levels." Instrumentation Science & Technology 34, no. 4 (2006): 425–33. http://dx.doi.org/10.1080/10739140600648845.

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34

Hamilton, E. I. "Methods for the analysis of seawater." Marine Pollution Bulletin 16, no. 1 (1985): 39. http://dx.doi.org/10.1016/0025-326x(85)90259-0.

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35

Mulenga, M., O. Monama, Y. Kabungu, K. Kalala, K. Yowa, and R. Dorebaba. "Chemical Analysis of Zairian Coastal Seawater." Bulletin des Sociétés Chimiques Belges 98, no. 11 (2010): 855–57. http://dx.doi.org/10.1002/bscb.19890981106.

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36

Díaz-de-Alba, Margarita, M. Dolores Galindo-Riaño, and José Paulo Pinheiro. "Lead electrochemical speciation analysis in seawater media by using AGNES and SSCP techniques." Environmental Chemistry 11, no. 2 (2014): 137. http://dx.doi.org/10.1071/en13154.

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Environmental context Metal contamination of seawater can present severe environmental problems owing to the high toxicity of metals and their persistence in the environment. This study explores the possibility of analysing lead in seawater media using two recently developed electrochemical methods. The methods are shown to be very useful tools to monitor the behaviour and fate of lead and other metals in seawater. Abstract The speciation of PbII in synthetic and real seawater is studied by absence of gradients and Nernstian equilibrium stripping (AGNES) and stripping chronopotentiometry at sc

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37

Yin, Fanglong, Songlin Nie, Wei Hou, and Shuhan Xiao. "Effect analysis of silencing grooves on pressure and vibration characteristics of seawater axial piston pump." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 8 (2016): 1390–409. http://dx.doi.org/10.1177/0954406216660334.

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Seawater axial piston pump is a critical power component in seawater fluid power system. As the properties of high bulk modulus and low viscosity of seawater, the pressure and vibration characteristics of the seawater axial piston pump will be getting poorer than the traditional oil pump. In this study, the pressure, flow, and vibration characteristics for a seawater axial piston pump are investigated. The three-dimensional computational fluid dynamics simulations for the port plate with non-grooved, U-shaped, and triangle-based pyramid silencing groove designs have been conducted over a range

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38

Koswara, E., Nasim, and F. Rahmanudin. "Analysis of the Effect of Distillation Parameters on Freshwater Yield in Seawater Dispenser." Journal of Physics: Conference Series 2739, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1742-6596/2739/1/012002.

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Abstract The purpose of this study is to analyze the process of condensation that occurs in the condenser in the seawater distillation dispenser system. In the seawater dispenser system, it has been tested using the default system from the existing dispenser. The test results from the seawater distillation dispenser can change seawater with a seawater content of 20% to 0%. Initial testing was carried out only to see whether the built-in dispenser system with the addition of a 1-level condenser system could work well or not. Therefore, it is necessary to analyze the condensation process that oc

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39

McNichol, A. P., G. A. Jones, D. L. Hutton, A. R. Gagnon та R. M. Key. "The Rapid Preparation of Seawater ΣCO2 for Radiocarbon Analysis at the National Ocean Sciences Ams Facility". Radiocarbon 36, № 2 (1994): 237–46. http://dx.doi.org/10.1017/s0033822200040522.

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We have established a laboratory for extracting ΣCO2 from seawater samples for AMS analysis of the radiocarbon content. The seawater samples are collected at sea, poisoned and stored until analysis in the laboratory. Each sample is acidified; the inorganic carbon is stripped out as CO2 with an inert carrier gas and then converted to graphite. We present results for Buzzards Bay surface H2O and Na2CO3 standards that demonstrate we strip >98% of inorganic carbon from seawater. Stable isotope analyses are performed to better than 0.2‰, and the reproducibility of 14C measurements on Buzzards Ba

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40

Chen, Yingting, and Runyi Zhao. "Study on Correlative Factors of Seawater Temperature Based on Regression Analysis." Highlights in Science, Engineering and Technology 83 (February 27, 2024): 518–27. http://dx.doi.org/10.54097/6fbmrx65.

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The seawater temperature is important that affects marine ecosystems and marine life. This paper aimed to analyze the main factors that affect seawater temperature using Bottle Database collected at California Cooperative Oceanic Fisheries Investigations stations. The dataset contained seawater samples collected using bottles. Linear regression was performed using temperature as the dependent variable and depth, salinity, oxygen, and potential density as independent variables. Stepwise methods were used to select variables for regression models. To determine the most influential factor affecti

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41

Hasan, Saiful, Erpan Sahiri, Suprayitno Suprayitno, and Endin Tri Hartanto. "ANALYSIS OF DETERMINING CRITICAL COMPONENTS USING FMECA METHOD IN SEAWATER PUMP OF DIESEL GENERATOR CATERPILLAR 3412." JOURNAL ASRO 10, no. 3 (2019): 124. http://dx.doi.org/10.37875/asro.v10i3.170.

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The seawater pump on the Caterpillar 3412 Diesel Generator is one of the important component to make the Diesel generator can work well. This section serves to circulate seawater for the heat transfer process. The seawater pump is part of a cooling system of the engine which keeps the engine temperature from being too overheat. Seawater pumps with continuous operational conditions, resulting in reduced component reliability. This study applies the FMECA method to identify opportunities for failure at the seawater pump. From the calculation of FMECA, it is obtained an assessment of the level of

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42

Chen, Chih-Feng, Yee Cheng Lim, Yun-Ru Ju, et al. "Method Development for Low-Concentration PAHs Analysis in Seawater to Evaluate the Impact of Ship Scrubber Washwater Effluents." Water 14, no. 3 (2022): 287. http://dx.doi.org/10.3390/w14030287.

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A naval ship’s exhaust gas scrubber may discharge polycyclic aromatic hydrocarbons (PAHs) into seawater. Due to the high lipophilicity and low water solubility of PAHs, their concentrations in seawater are extremely low, making them difficult to detect or accurately determine. To accurately assess the impact of scrubber washwater effluent on the PAHs concentration of seawater, appropriate analysis methods must be established. In this study, a large-volume pre-concentration water sampler was used onboard to concentrate PAHs in surface seawater (100 L) from four sites offshore of southern Taiwan

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Audemard, Corinne, Tal Ben-Horin, Howard I. Kator, and Kimberly S. Reece. "Vibrio vulnificus and Vibrio parahaemolyticus in Oysters under Low Tidal Range Conditions: Is Seawater Analysis Useful for Risk Assessment?" Foods 11, no. 24 (2022): 4065. http://dx.doi.org/10.3390/foods11244065.

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Human-pathogenic Vibrio bacteria are acquired by oysters through filtering seawater, however, the relationships between levels of these bacteria in measured in oysters and overlying waters are inconsistent across regions. The reasons for these discrepancies are unclear hindering our ability to assess if -or when- seawater samples can be used as a proxy for oysters to assess risk. We investigated whether concentrations of total and human pathogenic Vibrio vulnificus (vvhA and pilF genes) and Vibrio parahaemolyticus (tlh, tdh and trh genes) measured in seawater reflect concentrations of these ba

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Ye, Yuwei, Chunting Wang, Hao Chen, Yongxin Wang, Jinlong Li, and Fuqiang Ma. "An analysis of the tribological mechanism of GLC film in artificial seawater." RSC Advances 6, no. 39 (2016): 32922–31. http://dx.doi.org/10.1039/c6ra03532a.

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The tribological performances of the graphite-like carbon (GLC) films sliding against WC balls in distilled water (DW), artificial seawater (SW) and four types of saline solutions related to seawater were investigated.

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Delly, J., K. Mizuno, T. E. B. Soesilo, and M. Gozan. "The Seawater Heavy Metal Content of the Mining Port Close to the Residential Area in the Morowali District." IOP Conference Series: Earth and Environmental Science 940, no. 1 (2021): 012019. http://dx.doi.org/10.1088/1755-1315/940/1/012019.

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Abstract Mining port operations are complex and can cause various forms of pollution. Analysis of seawater pollution from mining ports is required and complicated because of the various types of pollution, sources, effects, and different characteristics. This study examines the content of heavy metals in seawater in residential areas very close to mining ports. The method used sampling in three different places, examining seawater’s heavy metal properties. Secondary data of the quality of seawater was obtained from the results of data monitoring carried out by the company periodically since th

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Wu, Hao, Xu Liu, Hang Zhang, Xinchao Ruan, and Ying Guo. "Performance Analysis of Continuous Variable Quantum Teleportation with Noiseless Linear Amplifier in Seawater Channel." Symmetry 14, no. 5 (2022): 997. http://dx.doi.org/10.3390/sym14050997.

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Continuous variable quantum teleportation (CVQT) is one of the technologies currently explored to implement global quantum networks. Entanglement source is an indispensable resource to realize CVQT, and its distribution process has natural symmetry. Though there are many results for CVQT over optical fiber or atmospheric channel, little attention is paid to seawater channel. In this paper, a model based on seawater chlorophyll concentration is used to study the attenuation effect of seawater on light. In our scheme, a noiseless linear amplifier is utilized for enhancing the performance of CVQT

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Edward, Helfinalis, and Y. Witasari. "The content of polycyclic aromatic hydrocarbon (PAHs) compound of seawater in Mayalibit Bay, West of Papua." IOP Conference Series: Earth and Environmental Science 1119, no. 1 (2022): 012089. http://dx.doi.org/10.1088/1755-1315/1119/1/012089.

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Abstract Polycyclic Aromatic Hydrocarbons (PAHs) are polycyclic aromatic organic compounds that contain several carbon and hydrogen rings, known to be toxic and can be harmful to human life and biota in marine waters. This study aimed to determine the levels of PAHs in seawater in Mayalibit Bay, Papua. Seawater samples were taken using a water sampler at 8 locations in Mayalibit Bay in November 2008. The contaminant content of organic carbon compounds in PAHs was determined by Gas-Chromatography Spectrometry and Mass Spectrometry (GCMS). The results showed a high content of HMW-PAHs and LMW-PA

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Zhao, Jing De, Li Zhi Zhang, and Yan Bin Zhu. "Design and Energy Analysis for Eco-Community Based on Constructed Marine Wetland." Advanced Materials Research 588-589 (November 2012): 2151–54. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.2151.

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A design concept of eco-community based on constructed marine wetland is proposed. Constructed marine wetland can clean up seawater, which is not only helpful to reduce the corrosion of seawater on the pipeline of the seawater heat pump system, but also remove the thermal impact of discharged cooling water on ocean. Energy analysis simulation of a typical coastal eco-community in Xiamen city is conducted. This investigation shows that the eco-community has higher efficiency of energy and water usage than conventional chiller with cooling tower system.

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Doss, E. D., and H. K. Geyer. "MHD Seawater Propulsion." Journal of Ship Research 37, no. 01 (1993): 49–57. http://dx.doi.org/10.5957/jsr.1993.37.1.49.

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This paper discusses the reasons for the renewed interest in the concept of magnetohydrodynamic (MHD) seawater propulsion. The main advantages of this concept are presented, together with some of the technical challenges that need to be overcome to achieve reliability and performance. The paper discusses in simple terms some of the technical issues and loss mechanisms influencing the thruster performance in terms of its electrical efficiency. These issues include the jet losses and nozzle efficiency, Ohmic losses, frictional losses, three-dimensional effects and electrolysis inside the thruste

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Bahri, Samsul, Daramahu Tualepe, Yohanis Toni Batlolona, Aditya Ramadhan, and Wahyudi Widyatmoko Parnadi. "Vertical electrical sounding method and Dar Zarrouk analysis to identify the distribution of seawater intrusion in Pelauw Village, Maluku." Journal of Degraded and Mining Lands Management 11, no. 4 (2024): 6089–97. http://dx.doi.org/10.15243/jdmlm.2024.114.6089.

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Groundwater is one of the essential resources that support human life. Excessive exploitation activities can cause groundwater problems such as seawater intrusion, especially in coastal areas. Groundwater salination must be a concern and measured to determine the condition and level of distribution. One of the non-invasive, inexpensive, and efficient methods to see seawater intrusion phenomena is the vertical electrical sounding (VES) technique of electrical resistivity method. This research aimed to analyze the distribution of seawater intrusion in Pelauw Village, Maluku, Indonesia, using the

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