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Letteratura scientifica selezionata sul tema "Water column"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 21 febbraio 2023

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Articoli di riviste sul tema "Water column"

Jasron, Jahirwan Ut, Sudjito Soeparmani, Lilis Yuliati e Djarot B. Darmadi. "Comparison of the performance of oscillating water column devices based on arrangements of water columns". Journal of Mechanical Engineering and Sciences 14, n. 3 (28 settembre 2020): 7082–93. http://dx.doi.org/10.15282/jmes.14.3.2020.10.0555.

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The hydrodynamic performance of oscillating water column (OWC) depends on the depth of the water, the size of the water column and its arrangement, which affects the oscillation of the water surface in the column. An experimental method was conducted by testing 4 water depths with wave periods of 1-3 s. All data recorded by the sensor is then processed and presented in graphical form. The research focused on analyzing the difference in wave power absorption capabilities of the three geometric types of OWC based on arrangements of water columns. The OWC devices designed as single water column, the double water column in a series arrangement which was perpendicular to the direction of wave propagation, and double water column in which the arrangement of columns was parallel to the direction of wave propagation. This paper discussed several factors affecting the amount of power absorbed by the device. The factors are the ratio of water depth in its relation to wavelength (kh) and the inlet openings ratio (c/h) of the devices. The test results show that if the water depth increases in the range of kh 0.7 to 0.9, then the performance of the double chamber oscillating water column (DCOWC) device is better than the single chamber oscillating water column (SCOWC) device with maximum efficiency for the parallel arrangement 22,4%, series arrangement 20.8% and single column 20.7%. However, when referring to c/h, the maximum energy absorption efficiency for a single column is 27.7%, double column series arrangement is 23.2%, and double column parallel arrangement is 29.5%. Based on the results of the analysis, DCOWC devices in parallel arrangement showed the ability to absorb better wave power in a broader range of wave frequencies. The best wave of power absorption in the three testing models occurred in the wave period T = 1.3 seconds.

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Igra, D., e K. Takayama. "Experimental Investigation of Two Cylindrical Water Columns Subjected to Planar Shock Wave Loading". Journal of Fluids Engineering 125, n. 2 (1 marzo 2003): 325–31. http://dx.doi.org/10.1115/1.1538628.

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Two water columns with identical initial diameters of 4.8 mm were placed 30 mm apart inside a shock tube test section and were loaded by a shock wave of Mach number 1.47 in atmospheric air. The Weber and Reynolds numbers corresponding to these flow conditions are 6900 and 112,000, respectively. Double-exposure holographic interferometry was used to visualize the shock/water columns interaction. The process of the water columns deformation, displacement, and acceleration was well visualized and hence the drag coefficient of shock loaded water columns was evaluated. The front water column behaved virtually the same as a single water column under the same flow conditions. However, the displacement and acceleration of the rear water column was less significant than that of the front one. Hence, its drag coefficient is less. These results show that the front water column has affected the flow field around the rear water column.

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Durkee, John B. "The Water Column". Metal Finishing 105, n. 9 (settembre 2007): 57–59. http://dx.doi.org/10.1016/s0026-0576(07)80221-2.

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Bauer, Rachel, Paul Pitzel, Emily Johnson e Catherine Johnson. "Water-Cased Kicker Charges for Use in Explosive Demolition". Buildings 13, n. 2 (29 gennaio 2023): 378. http://dx.doi.org/10.3390/buildings13020378.

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Demolition projects involving explosives often incorporate cutting charges to sever columns in conjunction with kicker charges that “move” the columns out of alignment. Traditional kicker charges use dynamite secured to the column above a linear-shaped cutting charge. This study investigates the use of water-cased kicker charges for use in explosive demolition. The goal is to reduce the fragmentation of steel members and the quantity of explosive needed due to the increased density, incompressibility, and impedance mismatch water provides. Simulations and experimental tests were utilized to determine what type of charges provide the optimal column movement and water placement. Water charges and traditional charges were placed on hanging steel columns that swung freely from a top pivot and analyzed for the fragmentation and velocity of the column. Tests were recorded with high-speed video to calculate velocity and impulse. Simulations showed the same results as experimental tests, with water-cased charges moving the column faster and with more impulse than traditional charges. Experimental testing showed that water-cased charges moved the column 53% faster than traditional in contact charges while simulations showed that water-cased charges moved the column 43% faster than traditional in contact charges. Simulations showed the water tamped behind the charge increased beam velocity 32% while water in front of the charge reduced pressure 38% through dispersion.

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Takahashi, Hisayuki, e Masayasu Tanaka. "Statistical Analysis for Comparison of the Results Obtained by Capillary Columns and Packed Columns in the Determination of Water Yield in Smoke Condensates Analyzed in Cigarettes for the 24th Asia Collaborative Study". Beiträge zur Tabakforschung International/Contributions to Tobacco Research 29, n. 2 (25 settembre 2020): 97–118. http://dx.doi.org/10.2478/cttr-2020-0010.

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SummaryRecently, capillary columns have been widely used in the methodology for the determination of water yields in smoke condensate, even though ISO 10362-1:1999, “Cigarettes - Determination of water in smoke condensates – Part 1: Gas chromatographic method” specifies a packed gas chromatographic column. As a result of a systematic review in 2015, ISO/TC126 decided to revise the standard to include the use of capillary columns.The goal of this study was to confirm the comparability of water yields obtained from capillary column methodology to those yields from packed columns by the statistical analysis of yield data from the 24th Asia Collaborative Study which included 86 datasets submitted by 64 laboratories. After the exclusion of outliers by Cochran’s and Grubbs’ tests, the datasets were classified by GC column type and then mean water yields, and their repeatability and reproducibility were calculated for each type of column. No significant differences were observed in water yields between capillary and packed columns. Repeatability and reproducibility of water yields using capillary column were comparable to those using packed columns as described in ISO 10362-1:1999. From these results, it was confirmed that the capillary columns are an appropriate alternative to packed columns for the gas chromatographic procedure described in ISO 10362-1:1999.

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Zhang, Zhen Peng, Jin Qiu Shao, Xue Yan Sun e Hui Jun Liu. "Simulation of Soil Water and Salt Transport with Sand Column in Coastal Saline Soil Based on COMSOL". Applied Mechanics and Materials 614 (settembre 2014): 668–71. http://dx.doi.org/10.4028/www.scientific.net/amm.614.668.

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In the paper, transport of water and Cl- under leaching was 2D-digitally simulated with COMSOL Multi-physics. In a two-dimensional transient cross-sectional model. COSMOL was used to investigate water and solute transport in the soil column coupled with variable sand column forms, with “a” denoting no sand column, “b” with one vertical middle sand column, “c “ with one long Slanted sand column, “d” with two long Slanted X-shaped sand columns. The parameters of the model were primarily based on the soil physical properties measured at coastal clay loam saline soil in Tianjin. The simulation results showed that, given same initial and same boundary conditions, sand column increased the transport efficiency of water and salt, which depends on the position and angle of sand column accordingly. The slanted columns were overall superior to the vertical ones in transport efficiency. In sum, “d” was the best type, “c” was the second best and “b” was the third, according to the efficiency of salt leaching and the efficiency of the utilization of water resources.

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Maimon, Dan. "Oscillating water column plant". Analele Universităţii "Dunărea de Jos" din Galaţi Fascicula XI Construcţii navale/ Annals of "Dunărea de Jos" of Galati Fascicle XI Shipbuilding 44 (3 dicembre 2021): 47–50. http://dx.doi.org/10.35219/annugalshipbuilding/2021.44.07.

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This article is describing the way of construction and operation of an oscillating water column system in order to recover as much as possible from the waves energy. The oscillating water column plant is used for the production of electrical energy by tidal currents, and it is currently the most widespread and economical method for the conversion of wave motion. The environmental impact of these infrastructures remains very low: no emissions of gas or any waste during their operation. In addition, the swell is a formidable source of energy.

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Winton, Michael. "Polar Water Column Stability". Journal of Physical Oceanography 29, n. 6 (giugno 1999): 1368–71. http://dx.doi.org/10.1175/1520-0485(1999)029<1368:pwcs>2.0.co;2.

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Bader, Amjed M., Dhia A. Alazawi, Hussain J. M. Al-Alkawi e Saad T. Faris. "Effect of shot peening on the critical buckling load of stainless steel 304 columns immersed in sea water". Curved and Layered Structures 9, n. 1 (1 gennaio 2022): 442–50. http://dx.doi.org/10.1515/cls-2022-0181.

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Abstract A machine part subjected to an axial compressive load is called strut. But, a vertical strut is known as a column. The machine members that must be investigated for the column action are connecting rods, piston rods, screw jack, etc. When a column is subjected to a compressive load and this load is gradually increased, a stage will be reached when the column will be subjected to ultimate load. Beyond this, the column will fail by crushing, and the load will be known as crushing load. When the column is short or intermediate, sometimes this column fails by bending, i.e. buckling. When the column is long, the value of buckling load is low for long columns and is relatively high for intermediate columns. The present investigation focuses on the testing and evaluation of the mechanical end buckling columns (samples) using 304 stainless steel under dry, corrosion, and combined dry with shot peening (SP) process. The buckling behavior of the axial compressive load has been studied experimentally and theoretically using Euler and Rankin theories. The results obtained from the above study manifested that the column, whose slenderness ratio (SR) is more than 120, is denoted as the long column, and the Euler theory can be successfully used. But, when the SR is less than 120, the column is known as an intermediate one. The mechanical and buckling properties exhibited a reduction due to the corrosion media and a reasonable improvement when using SP.

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Raeva, V. M., e O. V. Gromova. "Separation of water – formic acid – acetic acid mixtures in the presence of sulfolane". Fine Chemical Technologies 14, n. 4 (15 settembre 2019): 24–32. http://dx.doi.org/10.32362/2410-6593-2019-14-4-24-32.

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In this paper, extractive distillation flowsheets for water–formic acid–acetic acid mixtures were designed. Flowsheets not involving preliminary dehydration were considered, and the relative volatilities of the components in the presence of sulfolane were analyzed. The result of extractive distillation depends on the amount of sulfolane. The structure of the flowsheet is determined by the results of the basic ternary mixture extractive distillation. In three-column flowsheets (schemes I, II), water is isolated in the distillate of the extractive distillation column. In the second column, distillation of the formic acid–acetic acid–sulfolane mixture is carried out, yielding formic acid (90 wt %) and acetic acid (80 wt %). The recycled flow is returned to the first column. Dilution of the formic acid–acetic acid–sulfolane mixture with sulfolane (second column of flowsheet II) allows for acids of higher quality (main substance content equal to or more than 98.5 wt %) to be obtained. Flowsheet III includes four columns and two recycling stages. First, the water–formic acid mixture is isolated in the distillate of the extractive distillation column. Then, water and formic acid are separated in a two-column complex by extractive distillation, also with sulfolane. We were carrying out calculations for column working pressure 101.32 and 13.33 kPa. To prevent thermal decomposition of sulfolane, working pressure for regeneration columns was always 13.33 kPa. The extractive distillation column of the basic three-component mixture is the main factor contributing to the total energy consumption for separation (in all schemes).

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Tesi sul tema "Water column"

Verspecht, Florence. "Temporal dynamics of the coastal water column". University of Western Australia. School of Environmental Systems Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0097.

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Field measurements and numerical modelling of the shallow coastal waters offshore in south-western Australia were used to describe changes in the water column's vertical structure and the biological response on temporal scales of the order of hours and days. A cycle of chlorophyll a concentration, primary production, and photosystem II function on a diel timescale, which was related to changes in the solar irradiance and thermal structure, was identified. The diel cycle included (1) vertically well-mixed (or weakly linear) conditions in density and chlorophyll a early in the morning, resulting from vertical mixing through penetrative overnight convection; (2) depleted chlorophyll a concentration in the surface layer during the middle of the day due to photoinhibition; (3) an increased chlorophyll a concentration in the bottom layer by late afternoon due to optimum light conditions; and (4) the formation of a chlorophyll a break point (CBP) at the thermocline, which migrated downwards with the deepening surface mixed layer. On a longer timescale (days), moored acoustic instruments were used to derive echo level (EL), which approximated suspended particulate matter (SPM). Wind events ultimately controlled SPM, a conclusion based on (1) elevated EL during high windgenerated turbulence and bed shear stress, (2) positive time-lagged correlations between wind speed and EL at three field sites with different exposures to wave action, and (3) significant negative correlations between wind speed and depth-differentiated echo level (d(EL)/dz) at all sites. Sea breezes produced a similar response in EL through the water column to a small storm event, and wind-driven SPM resuspension resulted in a reduction in the sub-surface light climate (kd). Near-bed dissolved oxygen concentrations varied in accord with elevated wind speeds, EL and kd, highlighting a possible suppression of photosynthesis. One-dimensional modelling revealed that wind stirring was most often the dominant process in these waters. It was found that for a brief period during thermal stratification there was shear production of turbulent instabilities that migrated from the thermocline to the surface and the seabed. Convective cooling was not able to mix the water column entirely overnight without the addition of wind, and minimum wind speeds were determined for this complete vertical mixing. Bottom-generated turbulence was limited to a small region above the bed, and was deemed insignificant compared with mixing generated at the surface. Minimum wind speeds required for de-stratification and prevention of stratification were determined for summer, autumn and winter. A hypothetical desalination outfall was simulated for all seasons and it was concluded that positioning of the discharge at middepth was preferable compared to at the seabed. The results of this thesis advance the current knowledge of coastal biophysical oceanography and provide new insights into the temporal dynamics of the coastal water column of south-western Australia.

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Coltman, Kenna Maria. "Water table management effects on water quality: a soil column study". The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1195165287.

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Coltman, Kenna Marie. "Water table management effects on water quality : a soil column study /". Connect to resource, 1992. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1195165287.

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Diedrich, Hannes [Verfasser]. "Observation of Total Column Water Vapour / Hannes Diedrich". Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1109790406/34.

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Munson, Kathleen M. (Kathleen May). "Transformations of mercury in the marine water column". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87513.

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Thesis: Ph. D., Joint Program in Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references.
Methylation of mercury (Hg) in the marine water column has been hypothesized to serve as the primary source of the bioaccumulating chemical species monomethylmercury (MMHg) to marine food webs. Despite decades of research describing mercury methylation in anoxic sediments by anaerobic bacteria, mechanistic studies of water column methylation are severely limited. These essential studies have faced analytical challenges associated with quantifying femtomolar concentrations of the methylated Hg species dimethylmercury (DMHg) and MMHg in marine systems. In addition, the complex biogeochemical cycling of Hg in natural systems require consideration of gaseous, dissolved, and particulate species of Hg in order to probe potential controls on its ultimate transfer into marine food webs. The presented work provides a comprehensive study of Hg chemical speciation and transformations in Tropical Pacific waters. We developed an analytical method for MMHg determination from seawater that has the potential to ease measurements of MMHg distributions, as well as mechanistic studies of Hg species transformations. We used this method, in addition to previously established methods, to measure dissolved and particulate Hg species distributions and fluxes along a transect of the Pacific Ocean. Over significant gradients in oxygen utilization and primary productivity, we observed a region of methylated Hg species focused in the Equatorial Pacific that appeared spatially separated from higher concentrations in North Pacific Intermediate Waters. From the first full water column depth profiles of this region, we also observed the intrusion of elevated Hg into deep waters of the Equatorial and South Pacific Ocean. In addition we observed substantial potential rates of mercury methylation in subsurface and low oxygen waters along the Pacific transect as well as the Sargasso Sea using Hg isotope tracers. We observed dynamic production and decomposition of methylated Hg in low productivity waters, despite low ambient methylated Hg concentrations. From the addition of bulk organic matter as well as individual compounds important for methylation in anaerobic bacteria, we observe no simple limitation of Hg methylation in marine waters but highly dynamic conversion of Hg between methylated and inorganic species.
by Kathleen M. Munson.
Ph. D.

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Magagna, Davide. "Oscillating water column wave pump : a wave energy converter for water delivery". Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/349009/.

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The research presented in this dissertation investigates the development and the performances of a new type of Wave Energy Converter (WEC) aimed to provide water delivery and energy storage in the form of potential energy. The Oscillating Water Column Wave Pump (OWCP) concept was proposed and tested through a series of experimental investigations supported by scientific theory. The OWCP was developed after an extensive study of the existing wave energy technology available, from which it emerged that the Oscillating Water Column (OWC) device could be further implemented for water delivery purposes. The existing theory of the OWC was employed to develop a mathematical theory able to describe the system wave response and water removal of the OWCP. In order to understand and validate the mathematical models of the OWCP, experimental investigations were carried out under the influence of incident linear waves in a two-dimensional (2D) and three-dimensional (3D) wave flume. The experimental equipment and methodology are outlined, including the description of wave flumes, models and data acquisition equipment. Experimental tests were used to verify the concept of the OWCP and assess its performances, investigating both the response of the device to the waves with and without water removal. In order to increase the efficiencies of delivery, array configurations of multiple OWCPs were adopted. The research demonstrated that up to 14% of the energy carried by the incoming waves can be converted into useful potential energy for a single device. Moreover a further increase of the efficiencies can be obtained with the array configuration improving the overall capability of the OWCP, for optimal separation distance between the array components. Further model tests are required to extended this research to validate the developed mathematical models as an effective prediction tool of the performances of the OWCP and further increase the efficiency of water removal that can be achieved.

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Wheeler, Jeanette Danielle. "Behavioral responses of invertebrate larvae to water column cues". Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103337.

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Thesis: Ph. D., Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Department of Biology; and the Woods Hole Oceanographic Institution), 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 139-150).
Many benthic marine invertebrates have two-phase life histories, relying on planktonic larval stages for dispersal and exchange of individuals between adult populations. Historically, larvae were considered passive drifters in prevailing ocean currents. More recently, however, the paradigm has shifted toward active larval behavior mediating transport in the water column. Larvae in the plankton encounter a variety of physical, chemical, and biological cues, and their behavioral responses to these cues may directly impact transport, survival, settlement, and successful recruitment. In this thesis, I investigated the effects of turbulence, light, and conspecific adult exudates on larval swimming behavior. I focused on two invertebrate species of distinct morphologies: the purple urchin Arbacia punctulata, which was studied in pre-settlement planktonic stages, and the Eastern oyster Crassostrea virginica, which was studied in the competent-to-settle larval stage. From this work, I developed a conceptual framework within which larval behavior is understood as being driven simultaneously by external environmental cues and by larval age. As no a priori theory for larval behavior is derivable from first principles, it is only through experimental work that we are able to access behaviors and tie them back to specific environmental triggers. In this work, I studied the behavioral responses of larvae at the individual level, but those dynamics are likely playing out at larger scales in the ocean, impacting population connectivity, community structure, and resilience. In this way, my work represents progress in understanding how the ocean environment and larval behavior couple to influence marine ecological processes.
by Jeanette Danielle Wheeler.
Ph. D.

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Kooverji, Bavesh. "Pneumatic power measurement of an oscillating water column converter". Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86662.

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Thesis (MScEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: A measurement device was developed to accurately determine the pneumatic power performance of an Oscillating Water Column (OWC) model in a wave flume. The analysis of the pneumatic power is significant due to the wave-topneumatic energy being the primary energy conversion process and where the most energy losses can be expected. The aim of the research study is to address the accurate pneumatic power measurement of unsteady and bidirectional airflow in OWC model experiments. The two fundamental measurements required for the pneumatic power measurement are the pressure difference over an orifice on the OWC model and the volumetric flow rate of air through the outlet. The designed, constructed and assembled measurement device comprised of a venturi flow meter, containing a hot-film anemometer, which could measure the pressure drop and the volumetric flow rate in one device. The assembled pneumatic power measurement device was calibrated in a vertical wind tunnel at steady state. The results from the calibration tests showed that the volumetric flow rate measurements from the pneumatic power measurement device was accurate to within 3 % of the wind tunnel’s readings. The pneumatic power measurement device was incorporated onto a constructed Perspex physical model of a simple OWC device. This assembled system was used as the test unit in the wave flume at Stellenbosch University (SUN). The results from the experimental tests underwent comparative analysis with three analytical OWC air-flow models which were simulated as three scenarios using Matlab Simulink. These results showed that the measurement device has the ability to measure the pneumatic power but there is difficulty in modelling the complex air-flow system of the OWC device. This results in varying levels of agreement between the experimental and simulated pneumatic power results. The research study has revealed that there is difficulty in designing an accurate device for a wide range of test parameters due to the variance in output values. The unsteady and bidirectional nature of the air flow is also difficult to accurately simulate using a one-dimensional analytical model. Recommendations for further investigation are for CFD systems to be used for the analysis of the air-flow in an OWC system and to be used to validate future pneumatic power measurement devices.
AFRIKAANSE OPSOMMING: ‘n Meetinstrument was ontwikkel om die pneumatiese kraglewering van ‘n model van die Ossillerende Water Kolom (OWK) golfenergie omsetter in ‘n golf tenk akkuraat te meet. Dit is belangrik om die omskakeling van golf na pneumatiese energie te analiseer siende dat die grootste energieverlies in dié proses plaasvind. Die doel van hierdie navorsingsprojek was om die akkurate pneumatiese kragmeting van variërende en twee-rigting vloei van lug in ‘n OWK model na te vors. Die twee fundamentele metings wat benodig word vir die pneumatiese kragbepaling is die drukverskil oor die vloei vernouing en die volumetriese vloeitempo van lug deur die uitlaat van die toetstoestel. Die spesiaal ontwerpte meettoestel wat gebruik is in die eksperiment het bestaan uit ‘n venturi vloeimeter wat ‘n verhitte-film anemometer bevat het wat die drukverandering en die volumetriese vloeitempo kan meet in ‘n enkele instrument. Die pneumatiese kragmeting was gekalibreer in ‘n vertikale windtonnel waarin ‘n konstante vloei tempo geïnduseer was. Die kalibrasieproses het bevestig dat die meettoestel metings lewer met ‘n fout van minder as 3 % wanneer dit vergelyk word met die bekende konstante vloei tempo soos bepaal in die windtonnel. ‘n Fisiese model van ‘n vereenvoudigde OWK golfenergie omsetter was ontwerp en gebou uit Perspex om as toetstoestel te gebruik vir die evaluering van die ontwerpte pneumatiese kraglewering meettoestel. Die toetse was uitgevoer in ‘n golftenk by die Universiteit Stellenbosch (SUN). The toetsresultate was vergelyk met drie ander OWK lugvloei modelle wat gesimuleer was deur om die analitiese modelle op te stel en te simuleer in Matlab Simulink. Die vergelyking van modellering resultate het gewys dat die meettoestel die vermoë het om pneumatiese krag te meet. Daar was wel komplikasies met die modellering van die komplekse lugvloei in die OWK toestel, die resultate het geen definitiewe ooreenstemming gewys tussen die eksperimentele en gesimuleerde pneumatiese krag resultate nie. Die navorsingsprojek het gewys dat daar komplikasies is om ‘n enkel toestel te ontwerp wat oor ‘n wye bereik kan meet weens die variasie van die verskillende parameters. Die variërende en twee-rigting lugvloei is ook moeilik om akkuraat te simuleer met ‘n een-dimensionele analitiese simulasie model. Aanbevelings vir verdere navorsing sluit in om die lugvloei in die OWK stelsel te modelleer en te analiseer in ‘n drie-dimensionele model om die lesings van ‘n pneumatiese krag meettoestel te bevestig.

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Perdigão, José Nuno Bebiano Mesquita de Azeredo. "Reactive-control strategies for an oscillating-water-column device". Phd thesis, Instituições portuguesas -- UTL-Universidade Técnica de Lisboa -- IST-Instituto Superior Técnico -- -Departamento de Engenharia Mecânica, 1998. http://dited.bn.pt:80/29667.

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Falconer, Haley Ryanne Watson. "Column filter studies phosphorus removal using biogenic iron oxides /". Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/H_Falconer_100709.pdf.

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Thesis (M.S. in environmental engineering)--Washington State University, December 2009.
Title from PDF title page (viewed on Jan. 12, 2010). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 52-53).

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Libri sul tema "Water column"

Neretin, Lev N., a cura di. Past and Present Water Column Anoxia. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-4297-3.

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Janzen, Carol D. Marine water column ambient monitoring plan: Final report. Olympia, Wash: Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Ambient Monitoring Section, 1992.

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Newton, J. A. Marine water column ambient monitoring program: Wateryear 1993 data report. Olympia, Wash: Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Ambient Monitoring Program, 1994.

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King, Linda L. Chlorophyll diagenesis in the water column and sediments of the Black Sea. Woods Hole, Ma: Woods Hole Oceanographic Institution, 1993.

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Janzen, Carol D. Marine water column ambient monitoring program: Annual report for wateryear 1991 : final report. Olympia, Wash: Washington State Dept. of Ecology, Environmental Investigations and Laboratory Services Program, Ambient Monitoring Section, 1993.

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Neretin, Lev N. Past and Present Water Column Anoxia. Springer, 2008.

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Enel-Cris, Milan. Hydraulic Transients with Water Column Separation. IAHR Secretariat, 2000.

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Capitoli di libri sul tema "Water column"

Lurton, Xavier. "Water column applications". In An Introduction to Underwater Acoustics, 271–322. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13835-5_7.

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Cooney, Robert T., e Kenneth O. Coyle. "Water column production". In Environmental Studies in Port Valdez, Alaska: A Basis for Management, 93–115. Washington, D. C.: American Geophysical Union, 1988. http://dx.doi.org/10.1029/ln024p0093.

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Lung, Wu-Seng. "Water Column Kinetics II: Toxic Substances". In Water Quality Modeling, 103–31. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9781003208969-5.

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Chester, Roy. "Descriptive oceanography: water column parameters". In Marine Geochemistry, 195–232. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-010-9488-7_7.

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Lung, Wu-Seng. "Water Column Kinetics I: Dissolved Oxygen and Eutrophication". In Water Quality Modeling, 43–102. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9781003208969-4.

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Zhang, Zh. "Rigid Water Column Theory and Applications". In Hydraulic Transients and Computations, 77–102. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40233-4_4.

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Zhang, Zh. "Elastic Water Column Theory and Fundamentals". In Hydraulic Transients and Computations, 125–29. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40233-4_6.

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Kiørboe, Thomas. "Material flux in the water column". In Eutrophication in Coastal Marine Ecosystems, 67–94. Washington, D. C.: American Geophysical Union, 1996. http://dx.doi.org/10.1029/ce052p0067.

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Wang, Rongquan, Dezhi Ning e Robert Mayon. "Oscillating water column wave energy converters". In Modelling and Optimisation of Wave Energy Converters, 233–58. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003198956-7.

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Alligant, Soline, Johnny Gasperi, Aline Gangnery, Frank Maheux, Benjamin Simon, Marie-Pierre Halm-Lemille, Maria El Rakwe, Catherine Dreanno, Jérôme Cachot e Bruno Tassin. "Microplastic Contamination of Sediment and Water Column in the Seine River Estuary". In Springer Water, 4–9. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45909-3_2.

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Atti di convegni sul tema "Water column"

Morrison, Iain G., e Clive A. Greated. "Oscillating Water Column Modelling". In 23rd International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872629332.037.

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Igra, D., e K. Takayama. "Study of Two Cylindrical Water Columns Subjected to Planar Shock Wave Loading". In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2044.

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Abstract Two water columns with identical initial diameters of 4.8 mm were placed 30 mm apart inside a shock tube test section and loaded by a shock wave of Mach number 1.47 in atmospheric air. The Weber and Reynolds numbers corresponding to these flow conditions are 6,900 and 112,000, respectively. Double exposure holographic interferometry was used to visualize the shock/water columns interaction. The process of the water columns deformation, displacement, acceleration was well visualized and hence the drag coefficient of shock loaded water columns was evaluated. The water column in the front behaved virtually the same as a single water column. However the displacement and acceleration of the rear water column was less significant than that of the front one. Hence its drag coefficient is less. These results show that the frontal water column has affected the flow field around the rear water column.

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MINZATU, VASILE, ADINA NEGREA, CORNELIU MIRCEA DAVIDESCU, CORINA SEIMAN DUDA, MIHAELA CIOPEC, NARCIS DUŢEANU, PETRU NEGREA, DANIEL DUDA SEIMAN e BOGDAN IOAN PASCU. "ARSENIC ADSORPTION INTO THE FIXED BED COLUMN FROM DRINKING GROUNDWATER". In WATER POLLUTION 2018. Southampton UK: WIT Press, 2018. http://dx.doi.org/10.2495/wp180111.

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Garrido, Izaskun, Aitor J. Garrido, Jon Lekube, Erlantz Otaola e Edorta Carrascal. "Oscillating water column control and monitoring". In OCEANS 2016 MTS/IEEE Monterey. IEEE, 2016. http://dx.doi.org/10.1109/oceans.2016.7761420.

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Pradeep, Arjun, Anil Kumar Sharma, M. P. Rajiniganth, N. Malathi, M. Sivaramakrishna, D. Ponraju, B. K. Nashine e P. Selvaraj. "BUBBLE RISE DYNAMICS IN WATER COLUMN". In Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017). Connecticut: Begellhouse, 2018. http://dx.doi.org/10.1615/ihmtc-2017.990.

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Falcão, A. F. O. "Overview on Oscillating Water Column Devices". In Floating Offshore Energy Devices. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901731-1.

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Abstract. Oscillating-water-column (OWC) converters, of fixed structure or floating, are an important class of wave energy devices. A large part of wave energy converter prototypes deployed so far into the sea are of OWC type. The paper presents a review of recent advances in OWC technology, including sea-tested prototypes and plants, new concepts, air turbines, model testing techniques and control.

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Olivero, S., S. G. J. Heijman, J. P. A. Custers, G. Dascola e L. C. Rietveld. "Thermosensitive demineralization hydrogel for water softening: preliminary batch and column experiments". In WATER AND SOCIETY 2011. Southampton, UK: WIT Press, 2011. http://dx.doi.org/10.2495/ws110301.

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Marouchos, Andreas, Brett Muir, Russ Babcock e Matthew Dunbabin. "A shallow water AUV for benthic and water column observations". In OCEANS 2015 - Genova. IEEE, 2015. http://dx.doi.org/10.1109/oceans-genova.2015.7271362.

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Li, Y., C. h. Huang, L. Zhu e Y. Zhang. "Evaluating Soil Compaction on Leaching of Water and Nitrogen: Column Experiments and Simulation". In Water Resource Management. Calgary,AB,Canada: ACTAPRESS, 2010. http://dx.doi.org/10.2316/p.2010.686-067.

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Bright, D., C. E. Jones e J. I. Selvage. "Solving Water Column Statics with Seismic Oceanography". In 77th EAGE Conference and Exhibition 2015. Netherlands: EAGE Publications BV, 2015. http://dx.doi.org/10.3997/2214-4609.201412959.

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Rapporti di organizzazioni sul tema "Water column"

Gang, C. Y., J. Y. Lee e T. W. Ko. Water column study. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/297875.

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Kim, M., T. S. Rhee e Y. S. Choi. Water column study. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308406.

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Maassel, Paul W., Richard Schaffer, Sean Cullen, Gerry Stueve, Chris Scannell, Joseph Collins e Nicholas Kim. Improving the Water Column Representation. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2006. http://dx.doi.org/10.21236/ada444555.

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Copeland, Guild, Diana L. Bull, Richard Alan Jepsen e Margaret Ellen Gordon. Oscillating water column structural model. Office of Scientific and Technical Information (OSTI), settembre 2014. http://dx.doi.org/10.2172/1323379.

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Kester, Dana R. Water Column Variability in Coastal Regions. Fort Belvoir, VA: Defense Technical Information Center, settembre 1997. http://dx.doi.org/10.21236/ada627825.

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Kester, Dana R. Water Column Variability in Coastal Regions. Fort Belvoir, VA: Defense Technical Information Center, settembre 1999. http://dx.doi.org/10.21236/ada630867.

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Kester, Dana R. Water Column Variability in Coastal Regions. Fort Belvoir, VA: Defense Technical Information Center, giugno 2001. http://dx.doi.org/10.21236/ada389745.

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Hunter, J. A., P. J. Kurfurst e S. M. Birk. Water - Column Temperature, Salinity and Conductivity Measurements. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132224.

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Geyer, W. R., e Philip M. Gschwend. Sediment-Water Column Exchange of Toxic Organic Compounds. Fort Belvoir, VA: Defense Technical Information Center, settembre 1999. http://dx.doi.org/10.21236/ada630295.

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Stallings, M. E. Influence of Water Addition on Crystalline Silicotitanate Column Operation. Office of Scientific and Technical Information (OSTI), settembre 2001. http://dx.doi.org/10.2172/786595.

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