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Articles de revues sur le sujet « Water fitne »

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Auteur : Grafiati

Publié le 11 mars 2023

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1

ZHOU, Tao, Xiaolu FANG, Xu YANG, Daping LIN et Yunan FAN. « ICONE23-1274 RESEARCH OF FINE PARTICLE THERMOPHORESIS DEPOSITION IN SUPERCRITICAL WATER ». Proceedings of the International Conference on Nuclear Engineering (ICONE) 2015.23 (2015) : _ICONE23–1—_ICONE23–1. http://dx.doi.org/10.1299/jsmeicone.2015.23._icone23-1_135.

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2

Buddensiek, V., H. Engel, S. Fleischauer-Rössing, S. Olbrich et K. Wächtler. « Studies on the chemistry of interstitial water taken from defined horizons in the fine sediments of bivalve habitats in several northern German lowland waters I : Sampling techniques ». Archiv für Hydrobiologie 119, n^o 1 (20 juillet 1990) : 55–64. http://dx.doi.org/10.1127/archiv-hydrobiol/119/1990/55.

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3

Tan, Ching Soon, Phooi Yee Lau, Paulo L. Correia et Aida Campos. « Automatic analysis of deep-water remotely operated vehicle footage for estimation of Norway lobster abundance ». Frontiers of Information Technology & ; Electronic Engineering 19, n^o 8 (août 2018) : 1042–55. http://dx.doi.org/10.1631/fitee.1700720.

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4

Watanabe, Masao, Toshiyuki Sanada, Atsushi Hayashida et Yoichi Isago. « Cleaning Technique Using High-Speed Steam-Water Mixed Spray ». Solid State Phenomena 145-146 (janvier 2009) : 43–46. http://dx.doi.org/10.4028/www.scientific.net/ssp.145-146.43.

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A novel cleaning technique using steam-water mixed spray is proposed. Relatively low-pressure super-purified steam (0.1 MPa - 0.2 MPa) is mixed with super-purified water in a nozzle, and then sprayed on a silicon wafer surface, which is located at approximately 10 mm from the nozzle. The most striking result of this proposed technique is that we are able to clean a wafer surface, i.e., to eliminate fine particles, without using any chemicals.

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5

Utomo, Adityo Budi, Bhima Dhanardono et Laely Fitria Hidayatiningrum. « Vehicle Trajectory Test on Interlocking Pavement Made From No Fine Agregate Concrete ». MEDIA KOMUNIKASI TEKNIK SIPIL 27, n^o 1 (20 août 2021) : 143–50. http://dx.doi.org/10.14710/mkts.v27i1.27387.

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In rainy season, many cases of roads being submerged in water because of a lack of drainage capacity and low water absorption by the subgrade. This study makes no fine aggregate concrete as an interlocking pavement to increase water absorption to the drainage layer and subgrade. No fine aggregate concrete is made from mix of cement : coarse aggregate = 1 : 6 with water cement ratio 0,4. The results showed the value of specific gravity, water absorption, compressive strength, and Na2SO4 resistance are 1,703 gr/cm3, 2.57%, 10.8 MPa, and 0.79%. To see the level of interlocking pavement performance, no fine aggregate concrete is arranged above the drainage layer and the levelling layer, and then a trajectory and inundation test is performed. The result of inundation and trajectory tests shows that interlocking pavement can pass water to subgrade without inundation and can withstand the wheel loader that is equivalent to 13,000 kg so that it can be used for sidewalks, park lanes, and pavement with a maximum axle load of 8 tons.

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Solé, Jordi, Mikhail Emelianov, Alexander Ostrovskii, Pere Puig et Emilio García-Ladona. « Fine-scale water mass variability inside a narrow submarine canyon (the Besòs Canyon) in the NW Mediterranean Sea ». Scientia Marina 80, S1 (30 septembre 2016) : 195–204. http://dx.doi.org/10.3989/scimar.04322.05a.

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7

Capehart, Kevin W. « Fine Water : A Hedonic Pricing Approach ». Journal of Wine Economics 10, n^o 2 (4 août 2015) : 129–50. http://dx.doi.org/10.1017/jwe.2015.15.

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AbstractBottles of water vary in price with some priced as if they were bottles of fine wine. This article attempts to explain price differences between over 100 bottled waters included in a guidebook to fine waters by drawing on the hedonic pricing approach, which has been used to try to explain price differences among bottles of wine. As part of that approach, the price of each bottled water is regressed against various characteristics, including those related to its water. Water-related characteristics explain only a small part of the price differences among the bottled waters. Thus, to a large extent, the premium that consumers pay for a more expensive bottled water does not seem to be a premium for its water. (JEL Classifications: C21, Q25)

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8

Capehart, Kevin W., et Elena C. Berg. « Fine Water : A Blind Taste Test ». Journal of Wine Economics 13, n^o 1 (février 2018) : 20–40. http://dx.doi.org/10.1017/jwe.2017.50.

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AbstractTo test whether consumers can distinguish among different bottled waters and, if so, whether they prefer some to others, we recruited more than 100 subjects to participate in a blind taste test that consisted of four brands of bottled water featured in a restaurant's water menu and a guidebook to fine waters. The tasting involved three successive experiments. First, our subjects tried to distinguish bottled waters in a sensory discrimination test. They were only slightly better than random chance at doing so. Next, they rated bottled waters and tap water on a 14-point scale used at an international water competition. Some subjects preferred the inexpensive tap water to any of the bottled waters, and there was no association or a weak negative association between a bottled water's price and its rating. Finally, our subjects tried to distinguish tap from bottled water while matching the bottled waters to expert descriptions. They were no better than random chance at doing either of those things. Similar results have been found in previous taste tests of beer and wine. Overall, our results suggest consumers do not have strong preferences over different bottled waters to the extent they can even tell a difference. (JEL Classifications: D12, Q25)

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9

Sridharan, A., et K. Prakash. « Characteristic water contents of a fine-grained soil—water system ». Géotechnique 48, n^o 3 (juin 1998) : 337–46. http://dx.doi.org/10.1680/geot.1998.48.3.337.

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10

Clarke, Jenni. « Water works ». Early Years Educator 22, n^o 11 (2 juin 2021) : S4—S5. http://dx.doi.org/10.12968/eyed.2021.22.11.s4.

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Playing with water is fun and encourages fine and gross motor skills. Add large resources such as pipes, guttering and hoses to support children's dexterity and confidence as they explore, and think about, the nature of water.

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11

Buddensiek, V., H. Engel, S. Fleischauer-Rössing et K. Wächtler. « Studies on the chemistry of interstitial water taken from defined horizons in the fine sediments of bivalve habitats in several northern German lowland waters II : Microhabitats of Margaritifera margaritifera L., Unio crassus (Philipsson) and Unio tumidus Philipsson ». Archiv für Hydrobiologie 127, n^o 2 (17 mai 1993) : 151–66. http://dx.doi.org/10.1127/archiv-hydrobiol/127/1993/151.

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12

Nagaraj, T. S. « Discussion : Characteristic water contents of a fine grained soil–water system ». Géotechnique 50, n^o 3 (juin 2000) : 305–6. http://dx.doi.org/10.1680/geot.2000.50.3.305.

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13

Dickinson, Eric, Jane Evison et Richard K. Owusu. « Preparation of fine protein-stabilized water-in-oil-in-water emulsions ». Food Hydrocolloids 5, n^o 5 (décembre 1991) : 481–85. http://dx.doi.org/10.1016/s0268-005x(09)80106-9.

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14

TACHIBANA, Kazuki, Masaki MICHIHATA, Satoru TAKAHASHI et Kiyoshi TAKAMASU. « 1507 High-sensitive optical measurement of fine particulate defects on Si wafer surface with liquid probe ». Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2015.8 (2015) : _1507–1_—_1507–4_. http://dx.doi.org/10.1299/jsmelem.2015.8._1507-1_.

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15

Sima, Nicolae Vlad, Nicolae BĂran, Nicoleta Dorina Albu, Mihaela PetroȘel et Mihaela Constantin. « Water aeration researches using fine air bubble generators ». IOP Conference Series : Earth and Environmental Science 960, n^o 1 (1 janvier 2022) : 012018. http://dx.doi.org/10.1088/1755-1315/960/1/012018.

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Abstract The paper presents experimental researches able to demonstrate that the aeration installations with mobile fine bubble generators are more efficient than the classic ones with fixed, fine bubble generators. The paper develops water aeration researches by introducing two types of fine air bubble generators: I. Fixed fine air bubble generators, which generate Ø <1 mm bubbles; II. Mobile fine air bubble generators that move in the volume of water subject to aeration. The theoretical and experimental results are presented for the two versions. According to experimental data, aeration with mobile FBG is more efficient in terms of oxygen transfer from atmospheric air to a stationary water mass.

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WATANABE, Kazunori, Masahiro OTA et Wei LI. « Laser Trapping for Fine Particles in Water ». Journal of the Visualization Society of Japan 23, Supplement1 (2003) : 317–20. http://dx.doi.org/10.3154/jvs.23.supplement1_317.

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17

Battaglia, M., et A. Borgia. « Laminar flow of fine sediment-water mixtures ». Journal of Geophysical Research : Solid Earth 105, B3 (10 mars 2000) : 5939–45. http://dx.doi.org/10.1029/1999jb900418.

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18

Lu, S. C., S. X. Song et Z. F. Dai. « Dispersion of fine mineral particles in water ». Advanced Powder Technology 3, n^o 2 (1992) : 89–96. http://dx.doi.org/10.1016/s0921-8831(08)60674-3.

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19

Derjaguin, B. V., V. V. Karasev et E. N. Khromova. « Thermal expansion of water in fine pores ». Journal of Colloid and Interface Science 109, n^o 2 (février 1986) : 586–87. http://dx.doi.org/10.1016/0021-9797(86)90340-1.

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20

Derjaguin, B. V., V. V. Karasev et E. N. Khromova. « Thermal expansion of water in fine pores ». Progress in Surface Science 40, n^o 1-4 (mai 1992) : 391–92. http://dx.doi.org/10.1016/0079-6816(92)90067-r.

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21

Narain, Vishal, et Aditya Kumar Singh. « A fine muddle : (Re) Configuring water conflicts ? » Geoforum 85 (octobre 2017) : 9–11. http://dx.doi.org/10.1016/j.geoforum.2017.07.004.

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22

Wang, Li Jie, Jian Li, Jing Xu, Yu Jun Wang et Zhen Zhou. « Water Content Detection for Fine Iron Powder Based on Capacitance Sensor ». Applied Mechanics and Materials 303-306 (février 2013) : 884–90. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.884.

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The water content of fine iron powder is an important parameter to evaluate the fine iron powder price, and there is very important practical significance for rapidly measuring water content of the fine iron powder during manufacturing and trading. So water content detecting method is explored for fine iron powder based on capacitance sensor. The capacitance size depends on the dielectric constant of material between the plates, and the capacitance value reflects the iron powder water content. The water content measurement system for the fine iron powder is designed based on the principle above. The measurement probe components and its testing mechanics are researched, and capacitance measurement circuit and single chip control system of STC89C55 are designed. The software programming and debugging for single chip control system are completed. The experimental results show that the capacitive measurement method of water content for fine iron powder is feasible and easy to implement real-time or rapid monitoring.

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23

Chen, Zong Ping, Ni Wang, Shi Qian Zhang et Shu Fang Zheng. « Experimental Study on Basic Behavior of Recycled Fine Aggregate Mortar ». Advanced Materials Research 168-170 (décembre 2010) : 1680–85. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.1680.

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In order to study the mechanical behavior of recycled fine aggregate mortar, 11 kinds of different recycled fine aggregate replacement rate (ranged from 0% to 100%, level differential 10%) of cement mortar test specimens are designed. The failure pattern and the mechanical performance indexes of the cement mortar under different recycled fine aggregate replacement rate are gained by test. And the different physical indexes of natural fine aggregate and recycled fine aggregate are measured in detail. The experiment findings indicate that because the water absorption rate of the mortar with high porosity is higher, and there are mass microcracks in recycled fine aggregate interior due to damage accumulation, the lower apparent density, the higher water absorption rate and the quicker water absorption speed of recycled fine aggregate are caused. So the fluidity of recycled fine aggregate mortar is fine, but the water retention is bad, the compressive strength is lower than the natural fine aggregate mortar about 50%. But the replacement rate has little effect on the mortar strength.

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24

Feng, Yongmei. « Preparation and properties of recycled fine powder foam concrete ». MATEC Web of Conferences 353 (2021) : 01019. http://dx.doi.org/10.1051/matecconf/202135301019.

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With the rapid development of the construction industry brought by the accelerated process of urbanization, the problem of random stacking and landfill of waste concrete can be seen everywhere, which seriously affects the environmental health. The secondary utilization of waste concrete as recycled aggregate has become a research hotspot. This paper mainly studies the influence of the cementing material system of recycled fine powder foam concrete on the water absorption performance of recycled fine powder foam concrete, and explores the feasibility of using recycled fine powder to prepare foam concrete. The experiment also used recycled fine powder instead of some cement to prepare foam concrete. The effects of the amount of recycled fine powder, the amount of hydrogen peroxide and the ratio of water to binder on the compressive strength, water absorption, thermal conductivity and microstructure of the foam concrete were studied. The results showed that the water absorption rate of recycled fine powder foam concrete increased with the increase of red brick powder content, but the water absorption rate gradually increased. When the content of hydrogen peroxide is 6%, the ratio of water to binder has a greater influence on the thermal conductivity of foam concrete. When the amount of hydrogen peroxide is higher, the influence of water binder ratio on thermal conductivity decreases.

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25

Rasmuson, Anders, et Jan-Christer Eriksson. « On the Physico-Chemical Basis for the Capillary Barrier Effect ». Hydrology Research 19, n^o 5 (1 octobre 1988) : 281–92. http://dx.doi.org/10.2166/nh.1988.0020.

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The capillary barrier concept, using fine and coarse soil layers to reduce water infiltration into piles of hazardous wastes, is investigated theoretically. A detailed account of the hydrological and physico-chemical basis for the phenomenon is given. It is established that the capillary barrier will, in practice, only function if the fine layer remains somewhat unsaturated, i.e. the upper menisci exist and no ponding over the fine layer occurs. Accordingly, water reaching the fine layer must be transported laterally within this layer. The pressure conditions are dependent on the length of the interface, the slope of the interface, the thickness of the fine layer, the type of soil in the fine layer, the water influx at the surface, and the total volume of water infiltrated during an infiltration event. A simple estimate shows that the capillary barrier concept is feasible only for small heaps with steep interfacial slopes.

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Yang, Junwei, Lan Ma, Xiao He, Wing Chi Au, Yanhao Miao, Wen-Xiong Wang et Theodora Nah. « Measurement report : Abundance and fractional solubilities of aerosol metals in urban Hong Kong – insights into factors that control aerosol metal dissolution in an urban site in South China ». Atmospheric Chemistry and Physics 23, n^o 2 (25 janvier 2023) : 1403–19. http://dx.doi.org/10.5194/acp-23-1403-2023.

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Abstract. Water-soluble metals are known to produce greater adverse human health outcomes than their water-insoluble forms. Although the concentrations of water-soluble aerosol metals are usually limited by atmospheric processes that convert water-insoluble metals to water-soluble forms, factors that control the solubilities of aerosol metals in different environments remain poorly understood. In this study, we investigated the abundance and fractional solubilities of different metals in size-fractionated aerosols collected at an urban site in Hong Kong and identified the factors that modulated metal solubilities in fine aerosols. The concentrations of total and water-soluble metals in fine and coarse aerosols were the highest during the winter and spring seasons due to the long-range transport of air masses by northerly prevailing winds from emission sources located in continental areas north of Hong Kong. The study-averaged metal fractional solubilities spanned a wide range for both fine (7.8 % to 71.2 %) and coarse (0.4 % to 47.9 %) aerosols, but higher fractional solubilities were typically observed for fine aerosols. Sulfate was found to be strongly associated with both the concentrations of water-soluble Cr, Fe, Co, Cu, Pb, and Mn and their fractional solubilities in fine aerosols, which implied that sulfate-driven acid processing likely played an important role in the dissolution of the water-insoluble forms for these six metals. Further analyses revealed that these strong associations were due to sulfate providing both the acidic environment and liquid water reaction medium needed for the acid dissolution process. Thus, the variability in the concentrations of water-soluble Cr, Fe, Co, Cu, Pb, and Mn and their fractional solubilities were driven by both the aerosol acidity levels and liquid water concentrations, which in turn were controlled by sulfate. These results highlight the roles that sulfate plays in the acid dissolution of metals in fine aerosols in Hong Kong. Our findings will likely also apply to other urban areas in South China, where sulfate is the dominant acidic and hygroscopic component in fine aerosols.

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JABRAN, K., E. ULLAH, M. HUSSAIN, M. FAROOQ, N. HAIDER et B. S. CHAUHAN. « WATER SAVING, WATER PRODUCTIVITY AND YIELD OUTPUTS OF FINE-GRAIN RICE CULTIVARS UNDER CONVENTIONAL AND WATER-SAVING RICE PRODUCTION SYSTEMS ». Experimental Agriculture 51, n^o 4 (20 février 2015) : 567–81. http://dx.doi.org/10.1017/s0014479714000477.

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SUMMARYIn this study, we compared the weed emergence, water input, water saving, water productivity, panicle sterility, yield outputs and economic returns of transplanting with alternate wetting and drying (TRAWD) and dry direct seeding (DSR) with transplanting under continuous flooding (TRCF) using three fine-grain rice cultivars: Super Basmati; Basmati 2000; and Shaheen Basmati. Higher weed infestation was recorded in DSR than in TRCF and TRAWD. Raising rice as TRAWD and DSR had considerable water savings but a lower grain yield than TRCF. High panicle sterility was primarily responsible for low grain yield in TRAWD and DSR systems. Nonetheless, water productivity was better in DSR and TRAWD than TRCF. Shaheen Basmati in the DSR system and Basmati 2000 in TRCF fetched the highest economic returns during 2008 and 2009, respectively. In conclusion, fine-grain rice cultivars can be grown in water-saving production systems (e.g. TRAWD and DSR); however, these water-saving production systems might incur a yield penalty.

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Tang, D., D. Chu et T. Auston. « Fine‐scale acoustic imaging of shallow water sediments ». Journal of the Acoustical Society of America 100, n^o 4 (octobre 1996) : 2712. http://dx.doi.org/10.1121/1.416121.

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29

HORIBE, Akihiko, Naoto HARUKI, Yoshihiko SANO et Daisuke SAKAMOTO. « 1006 Boiling Behavior of Fine Particle Mixing Water ». Proceedings of Conference of Chugoku-Shikoku Branch 2014.52 (2014) : _1006–1_—_1006–2_. http://dx.doi.org/10.1299/jsmecs.2014.52._1006-1_.

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30

HUANG, CHENG-HSIUNG. « Modeling Sulfur Dioxide Absorption by Fine Water Spray ». Journal of Environmental Science and Health, Part A 40, n^o 11 (novembre 2005) : 2027–39. http://dx.doi.org/10.1080/10934520500230971.

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31

Berry, R. W. « Fine-grained sediments : Deep-Water processes and facies ». Marine Geology 76 (janvier 1987) : 331–32. http://dx.doi.org/10.1016/0025-3227(87)90040-5.

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32

Liyanaarachchi, Kathika R., Grant B. Webber, Kim van Netten, Roberto Moreno-Atanasio et Kevin P. Galvin. « Selective collection of fine particles by water drops ». Advanced Powder Technology 25, n^o 4 (juillet 2014) : 1311–18. http://dx.doi.org/10.1016/j.apt.2014.03.009.

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33

Ismeik, Muhannad, Ahmed M. Ashteyat et Khaled Z. Ramadan. « Stabilisation of fine-grained soils with saline water ». European Journal of Environmental and Civil Engineering 17, n^o 1 (janvier 2013) : 32–45. http://dx.doi.org/10.1080/19648189.2012.720399.

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34

Maxwell, Steve. « Water Investing : Come on in-The Water's Fine ». Journal - American Water Works Association 100, n^o 4 (avril 2008) : 60–62. http://dx.doi.org/10.1002/j.1551-8833.2008.tb09602.x.

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Ma, Jiao, Shan Hong Zou, Xiang Zhen Wang, Bin Hui, Xu Dong Liu, Song Jiang Chen, Ya Nan Li et Hai Feng Chen. « The Status and Analysis of the Equipment for Fine Mineral Particle Classification in Coal Wash Plants ». Advanced Materials Research 625 (décembre 2012) : 202–5. http://dx.doi.org/10.4028/www.scientific.net/amr.625.202.

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This article is about the methods and equipment being used in the first step of slime water system, which is called fine particle classification. With the development of automation in coal mining and preparation, fine particles in the raw coal increases substantially. The fine coal preparation is mainly completed in water, which makes the slime water system face to a heavier load. Accurate classification is necessary to large-grained gravity separation and small-grained flotation.

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Khassenov, A. K. « ELECTRIC PULSE METHOD FOR PRODUCING A SMALL-DISPERSED PRODUCT OF COAL-WATER FUEL ». Eurasian Physical Technical Journal 17, n^o 2 (24 décembre 2020) : 96–99. http://dx.doi.org/10.31489/2020no2/96-99.

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One of the most pressing issues is the effective use of coal combustion in the form of water-coal fuel, which has a number of advantages over layer or pulverized combustion. Coal-water fuel has a number of economic, operational and environmental advantages. The article considers the electric pulse method as a source of obtaining a fine product of coal-water fuel. The proposed method for grinding coal is based on the use of the energy of a pulsed shock wave resulting from a spark electric discharge in a liquid. The parameters of the electric pulse discharge for obtaining the required granulometric composition of the components of coal-water fuel are determined.

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Zhang, Hong Bo, et Qi Lei Shi. « The Sedimentation Experiment of the Fine White Slime Water ». Advanced Materials Research 826 (novembre 2013) : 279–82. http://dx.doi.org/10.4028/www.scientific.net/amr.826.279.

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There are a lot of white ore in Jixi Qingshan coal mine. Argillization of this ore is very terrible. This ore quickly turns to fine white slime in water and forms the stable suspending liquid. It leads that slime water form sediment is very terrible. This paper analyzed and researched the characters of the fine white slime water. The experiment results showed that the combined applied effect of MgCl2 and NPAM can enhance form sediment effect. The sample is the coal sample used in Jixi Qing Shan coal mine, which contains lots of white ore and is dipped in water for observation. This ore quickly turns to fine white slime in water, superfine, forming the stable suspending liquid. This suspending liquid become sedimentation in the natural placement for several days, which seriously effect the normal operation of the system of the manufacturing part of coal cleaning. This research on the sedimentation experiment of the fine white slime water will be introduced in this thesis.

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Hasan, Zahidah, Yuli Andriani, Drian Alif Anando, Sofiya Hasani et Rusky I. Pratama. « Water quality and water spinach productivity in aquaponic systems using fine bubbles (FBS) ». Jurnal Agro 9, n^o 2 (31 décembre 2022) : 252–64. http://dx.doi.org/10.15575/21491.

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Fine bubbles (FBs) merupakan teknologi baru dalam sistem akuaponik yang diharapkan mampu meningkatkan produksi ikan dan tanaman. Penelitian ini bertujuan untuk menentukan pemberian tekanan fine bubbles (FBs) yang dapat meningkatkan kualitas air dan produktivitas kangkung dalam sistem akuaponik. Penelitian dilaksanakan pada bulan Januari – Maret 2022 di Green House Ciparanje Fakultas Perikanan dan Ilmu Kelautan Universitas Padjadjaran, Jatinangor. Penelitian ini menggunakan metode eksperimental Rancangan Acak Lengkap (RAL) dengan empat perlakuan dan tiga ulangan. Perlakuan yang digunakan adalah pemberian tekanan FBs masing-masing 0 atm (A), 5,25 atm (B), 5,5 atm (C), 5,75 atm (D). Parameter kualitas air yang diukur terdiri atas parameter fisika (suhu) dan kimia (oksigen terlarut, pH, amonia, dan nitrat). Hasil penelitian menunjukkan pemberian tekanan FBs 5,75 atm menghasilkan suhu berkisar 24,4℃ - 26,5℃, kandungan oksigen terlarut sebesar 7,83 mg, pH 6,98 – 8,07, konsentrasi amonia 0,002 mg L-1, yang berpengaruh pada pertumbuhan ikan yang baik serta konsentrasi nitrat 0,316 mg L-1 yang berpengaruh pada produktivitas tanaman yang lebih tinggi, menghasilkan pertumbuhan tinggi tanaman 128,83 cm, bobot tanaman 140,60 g, dan jumlah daun 284 helai.ABSTRACTThe fine bubbles (FBs) is a new technology in aquaponic system that is expected to improve the fish and plant productivity. This study aimed to determine the application of fine bubbles pressure in improving water quality and water spinach in an aquaponic system. The research was conducted from January to March 2022 at Ciparanje Green House, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Jatinangor. This study used an experimental method of Completely Randomized Design (CRD) with four treatments and three replications. The treatments used were FBs pressure of 0 atm (A), 5.25 atm (B), 5.5 atm (C), 5.75 atm (D). The water quality parameters measured consisted of physical (temperature) and chemical (dissolved oxygen, pH, ammonia, and nitrate) parameters. The results showed that the pressure of FBs 5.75 atm generated temperatures ranging from 24.4oC - 26.5 oC, dissolved oxygen content of 7.83 mg L-1, pH 6.98 – 8.07, ammonia concentration 0.002 mg L-1 which affected on good fish growth and nitrate concentration 0.316 mg L-1 which affected higher plant productivity, resulting plant height of 128.83 cm, a plant weight of 140.60 g, and the number of leaves of 284 leaves.

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Farahnak, Moein, Keiji Mitsuyasu, Takuo Hishi, Ayumi Katayama, Masaaki Chiwa, Seonghun Jeong, Kyoichi Otsuki, Seyed Mohammad Moein Sadeghi et Atsushi Kume. « Relationship between Very Fine Root Distribution and Soil Water Content in Pre- and Post-Harvest Areas of Two Coniferous Tree Species ». Forests 11, n^o 11 (22 novembre 2020) : 1227. http://dx.doi.org/10.3390/f11111227.

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Tree root system development alters forest soil properties, and differences in root diameter frequency and root length per soil volume reflect differences in root system function. In this study, the relationship between vertical distribution of very fine root and soil water content was investigated in intact tree and cut tree areas. The vertical distribution of root density with different diameter classes (very fine <0.5 mm and fine 0.5–2.0 mm) and soil water content were examined along a slope with two coniferous tree species, Cryptomeria japonica (L.f.) D. Don and Chamaecyparis obtusa (Siebold et Zucc.) Endl. The root biomass and length density of very fine roots at soil depth of 0–5 cm were higher in the Ch. obtusa intact tree plot than in the Cr. japonica intact plot. Tree cutting caused a reduction in the biomass and length of very fine roots at 0–5 cm soil depth, and an increment in soil water content at 5–30 cm soil depth of the Ch. obtusa cut tree plot one year after cutting. However, very fine root density of the Cr. japonica intact tree plot was quite low and the soil water content in post-harvest areas did not change. The increase in soil water content at 5–30 cm soil depth of the Ch. obtusa cut tree plot could be caused by the decrease in very fine roots at 0–5 cm soil depth. These results suggest that the distribution of soil water content was changed after tree cutting of Ch. obtusa by the channels generated by the decay of very fine roots. It was also shown that differences in root system characteristics among different tree species affect soil water properties after cutting.

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Hosni Mahmoud, Hanan A., et Nada Ali Hakami. « Auto-Encoder Classification Model for Water Crystals with Fine-Tuning ». Crystals 12, n^o 11 (19 novembre 2022) : 1667. http://dx.doi.org/10.3390/cryst12111667.

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Water is one of the important, though scarce, resources on earth. The 2021 World Water Resource Report claims that environmental challenges threaten the sustainability of water resources. Therefore, it is vital to screen water quality to sustain water resources. Water quality is related to water crystal structure in its solid state. Intelligent models classify water crystals to predict their quality. Methods to analyze water crystals can aid in predicting water quality. Therefore, the major contribution of our research is the prediction of water crystal classes. The proposed model analyzes water crystals in solid states, employing image analysis and the deep learning method. The model specifies several feature groups, including crystal shape factors, solid-state features, crystal geometry and discrete cosine transform coefficients. The model utilizes feature fusion for better training. The proposed model utilized the EP water crystal dataset from the WC image depository and its accuracy was tested with the multi-feature Validation technique. The nature of our data inclined us to utilize F-Measure and sensitivity for the testing phase. Our proposed model outperformed other state of the art water crystal classification models by more than 6% in accuracy and 7% in f-measures, with performance exceeding 11% for triple feature fusion. Furthermore, our model was faster in training time (10% of the training time of the comparative models) and had 1.42 s classification time.

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Michel, Magdalena M., Lidia Reczek, Tadeusz Siwiec et Piotr Rudnicki. « Applying the coagulation and reverse osmosis for water recovery from evaporative water ». Annals of Warsaw University of Life Sciences, Land Reclamation 46, n^o 4 (1 décembre 2014) : 291–300. http://dx.doi.org/10.1515/sggw-2015-0003.

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Abstract Applying the coagulation and reverse osmosis for water recovery from evaporative water. Evaporative water from the concentration of yeast slurry is a potential raw material for water recovery. It is characterized by low pH (4.6-6.3), increased turbidity (3.65-13.7 NTU), and high content of total organic carbon (356-754 mg/L). Its treatment in the volume coagulation process using NaOH and coagulant PIX 111, was studied. Water turbidity was lowered to a value below 1 NTU, but coagulation did not allow for the removal of organic compounds. Coagulation was effective at temperatures of 20 and 40°C. Pretreatment of the feed water for RO included alkalization, coagulation, sedimentation, and 5 μm fine filtration (variant I), as well as single 5 μm fine filtration (variant II as a blank). In variant I the feed with improved properties was achieved. Membrane filtration allowed for effective desalination of evaporative water, 98 and 73% conductivity retention was obtained, depending on the method of the feed pre-treatment. The organic compounds were removed less efficiently, at 94 and 84%, respectively.

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Lazar Cosmo|1＊, Lepota. « The Practice of Water Volleyball as a Leisure and Fine Recreational Water Sport ». Health Research 1, n^o 1 (2017) : 1. http://dx.doi.org/10.31058/j.hr.2017.11001.

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NOSHO, Kazuki, Tomohiro YAMASAKI et Takeshi KATSUMI. « NEUTRALIZATION OF ALKALINE WATER AT COASTAL LANDFILL SITES BY ULTRA FINE BUBBLE WATER ». Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 78, n^o 2 (2022) : I_835—I_840. http://dx.doi.org/10.2208/jscejoe.78.2_i_835.

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Mikasa, Yuji, Naoya Yamawaki, Hiroaki Shida, Hayato Okumura, Shigenori Akamatsu, Yusuke Nishiuchi et Takashi Hata. « Study on Fixed Salt Removal Effect by Fine Bubbles ». MATEC Web of Conferences 333 (2021) : 02009. http://dx.doi.org/10.1051/matecconf/202133302009.

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In recent years, it has become clear that 1 μm or less sized fine air bubbles have different properties from those of mm or cm sized air bubbles. This study examined the effect of fine bubbles on the removal of salt fixed in the gap of aluminum plate as a verification of cleaning action by fine bubbles. As a result, it was confirmed that the removal effect of fixed salt is higher in fine bubble water than in control water, and that the degree of effect depends on the concentration of fine bubbles. It was also confirmed that less than 1 μm sized ultrafine bubble water has a higher removal effect than the control water. As a mechanism of removing fixed salt, it is conceivable that peeling effect, like lifting up part of fixed salt, in which fine bubbles are dissolved by pressure change around the fixed salt to become supersaturated, causing further bubbling around there, and/or physical collision effect of microbubbles. In addition, it was confirmed that the removal effect of a system in which fine bubbles were regularly introduced was much higher than the one that does not introduce fine bubbles regularly. In addition, even when the gap between fixed salt and aluminum plate was narrowed, the superiority of fine bubble cleaning was confirmed.

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Mikasa, Yuji, Naoya Yamawaki, Hiroaki Shida, Hayato Okumura, Shigenori Akamatsu, Yusuke Nishiuchi et Takashi Hata. « Study on Fixed Salt Removal Effect by Fine Bubbles ». MATEC Web of Conferences 333 (2021) : 02009. http://dx.doi.org/10.1051/matecconf/202133302009.

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In recent years, it has become clear that 1 μm or less sized fine air bubbles have different properties from those of mm or cm sized air bubbles. This study examined the effect of fine bubbles on the removal of salt fixed in the gap of aluminum plate as a verification of cleaning action by fine bubbles. As a result, it was confirmed that the removal effect of fixed salt is higher in fine bubble water than in control water, and that the degree of effect depends on the concentration of fine bubbles. It was also confirmed that less than 1 μm sized ultrafine bubble water has a higher removal effect than the control water. As a mechanism of removing fixed salt, it is conceivable that peeling effect, like lifting up part of fixed salt, in which fine bubbles are dissolved by pressure change around the fixed salt to become supersaturated, causing further bubbling around there, and/or physical collision effect of microbubbles. In addition, it was confirmed that the removal effect of a system in which fine bubbles were regularly introduced was much higher than the one that does not introduce fine bubbles regularly. In addition, even when the gap between fixed salt and aluminum plate was narrowed, the superiority of fine bubble cleaning was confirmed.

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Locascio, S. J., S. M. Olson et F. M. Rhoads. « Water Quantity and Time of N and K Application for Trickle-irrigated Tomatoes ». Journal of the American Society for Horticultural Science 114, n^o 2 (mars 1989) : 265–68. http://dx.doi.org/10.21273/jashs.114.2.265.

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Abstract Tomatoes (Lycopersicon esculentum Mill.) were grown during two seasons at two locations on fine sands and fine sandy loam soils to study the influence of water quantity, frequency of water application, and timing of N and K application for polyethylene-mulched, trickle-irrigated fresh-market tomatoes. Water quantities were 0.50 and 1.0 times pan evaporation applied one or three times daily. Nitrogen and K were applied 100% preplant or 40% applied preplant and 60% applied with trickle irrigation. Higher tomato leaf tissue N and K concentrations in one of the two seasons and higher fruit yields were obtained with 0.5 than with 1.0 time pan water evaporation on a fine sand at Gainesville, Fla. On a fine sandy loam soil at Quincy, fruit yields were higher in a relatively dry season with the higher water quantity and not influenced by the water quantity applied in the second relatively wet season. The number of daily water applications (one vs. three) at both locations had no effect on N and K uptake or fruit yields. Time of N and K applications had no effect on early yields, but total yields were higher with split than all preplant-applied N and K on the fine sandy soil. Split applications of fertilizer resulted in greater yields of extra-large fruit at mid-season and of extra large and large fruit at late harvest than all preplant-applied fertilizer. On the fine sandy loam soil, time of fertilizer application had no effect on yield.

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Zhang, Yuan Yuan, Zong Ke Lou et Xiang Bin Zhang. « Effect of Material Properties on Plastic Shrinkage of Ultra-Fine Sand Pumping Concrete ». Advanced Materials Research 150-151 (octobre 2010) : 588–93. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.588.

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The influence of mixing fly ash, admixture(including pumping agent, water reducing agent, air-entraining agent), polypropylene fiber on plastic shrinkage of ultra-fine sand pumping concrete by using slab test in this paper. The results show that mixing fly ash can significantly reduce plastic crack area of ultra-fine sand pumping concrete, and plastic crack area begins to reduce slowly when the content of fly ash is up to 20%; When the content of water reducing agent is between 0% and 1.5%, inhibition effects of water reducing agent on plastic shrinkage of ultra-fine sand pumping concrete increase gradually with the content., and the optimum content of water reducing agent is 0.75%; Compared with the water reducer, the effect of mixing pumping agent or air-entraining agent is better; Mixing polypropylene fiber can reduce plastic crack area of ultra-fine sand pumping concrete, slenderizing the crack, and the effect becomes greater with the content of polypropylene fiber.

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Akçaözoğlu, Kubilay, et Bedrettin Menemencioğlu. « The effect of fine material amount on optimum water content of roller compacted concrete ». International Journal of Business & ; Technology 6, n^o 3 (1 mai 2018) : 1–10. http://dx.doi.org/10.33107/ijbte.2018.6.3.23.

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In this study the effect of fine material amount on the optimum water content of roller compacted concrete (RCC) was investigated. The fine aggregate was replaced with calcite which maximum particle size was 63 μ, in amount of 0%, 2%, 4%, 6%, 10% and 14% by weight of total aggregate. Six different mixtures were prepared in the study. The optimum water contents of the mixtures were determined by using modified proctor test. Optimum water content, maximum dry unit weight and maximum fresh unit weight of produced specimens were measured. Optimum water content of specimens decreased depending on increasing fine aggregate amount, however these values increased after a limit value. Maximum fresh and dry unit weights of specimens increased depending on increasing fine aggregate amount, however after a limit value the fresh and dry weights of specimens decreased.

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Yin, Xiao-Yu, Tao Liu, Ye-Cheng Liu, Yan Tang, An-Chi Huang, Xi-Lin Dong et Yuan-Jun Liu. « Feasibility Study of Fine Water Mist Applied to Cold Storage Fire Protection ». Processes 10, n^o 8 (5 août 2022) : 1533. http://dx.doi.org/10.3390/pr10081533.

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The self-built fine water mist fire extinguishing platform studied the fire extinguishing effect of ultra-fine water mist in cold storage fires. The combustible material selected for our experiments is the cold storage insulation material—polystyrene insulation foam board. The combustion characteristics of the insulation board were studied by pyrolysis analysis. We analyzed the temperature, smoke, and other characteristics of the fire scene when a fire occurs in the cold storage and then manipulated the water mist to carry out the fire extinguishing experiment. Experiments aim to change the particle size and pressure of water mist and study the fire extinguishing efficiency of water mist under different conditions. A thorough analysis was used to determine the particle size range of fine water mist most suited for extinguishing fires in cold storage to offer a theoretical foundation for fire protection design.

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Kisic, I., I. Bogunovic et D. Bilandzija. « The influence of tillage and crops on particle size distribution of water-eroded soil sediment on Stagnosol ». Soil and Water Research 12, No. 3 (28 juin 2017) : 170–76. http://dx.doi.org/10.17221/91/2016-swr.

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The influences of six different tillage treatments and five different crops on soil losses by water erosion were studied during a twenty-year period (1995–2014) on Stagnosol in central lowland Croatia. The aim of the study was to determine how the quantity of soil sediment, different tillage treatments and crops influence the particle size distribution (PSD) of soil sediment. During the studied period, total number of non-eroded soil samples was 60 and total number of soil sediments samples was 445. Significantly lower amounts of fine sand and higher amounts of clay and silt were determined in sediments compared to the non-eroded soil regardless of cover crop and tillage treatment, with the exception of bare cultivated soil. Generally, when quantities of soil sediments were higher, textural differences between non-eroded and eroded soil were lower. Very week negative correlation was determined between the quantity of soil sediment and the content of clay (r = –0.25) as well as the content of silt (r = –0.23). A very weak positive correlation (r = 0.23) was determined between the content of fine sand and the quantity of soil sediment, while non correlation (r = –0.02) was determined between the content of coarse sand and the quantity of soil sediment.

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