Bibliographies thématiques / STORAGE VOLUME CONTROL

Littérature scientifique sur le sujet « STORAGE VOLUME CONTROL »

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Publié le 11 septembre 2023

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Articles de revues sur le sujet "STORAGE VOLUME CONTROL"

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Gunning, William T., Meera Raghavan, Edward P. Calomeni, James N. Turner, Bodri Roysam, Shantala Roysam, Mary R. Smith, Peter A. Kouides et Neil A. Lachant. « A Morphometric Analysis of Platelet Dense Granules of Patients with Unexplained Bleeding : A New Entity of Delta-Microgranular Storage Pool Deficiency ». Journal of Clinical Medicine 9, no 6 (4 juin 2020) : 1734. http://dx.doi.org/10.3390/jcm9061734.

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One thousand and eighty patients, having prolonged bleeding times, frequent epistaxis, menorrhagia or easy bruising or other bleeding manifestations, and excluding those with von Willebrand’s disease, were evaluated for platelet dense granule deficiency. The mean diameter of platelet dense granules was determined for all patients using image analysis. Four hundred and ninety-nine had “classic” dense (delta) granule storage pool deficiency (δ-SPD). Five hundred and eighty-one individuals (53.8%) were found to have a normal mean number of dense granules, but for some of these patients, the dense granules were smaller than for the controls. Of the patients having a normal number of dense granules, 165 (28.4%) were found to have significantly smaller granules than the platelets obtained from the control subjects. Their average granule diameter was 123.35 ± 0.86 nm, that is more than three standard deviations below the mean of the control data. Total δ-granule storage pool volumes (TDGV)/platelet were calculated using these measurements. Individuals with δ-SPD had half the number of granules (2.25 ± 0.04 DG/PL) and storage pool volume (3.88 ± 1.06 × 106 nm3) when compared to our control data (4.64 ± 0.11 DG/PL; 10.79 × 106 nm3 ± 0.42). Individuals having a bleeding history but a normal average of small dense granules had a calculated storage pool volume statistically different than controls and essentially the same storage pool volume as patients with δ-SPD. We have identified a sub-classification of δ-SPD that we have defined as micro-granular storage pool deficiency (δ-MGSPD).
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Wei, Zhongqing, Haidong Shangguan, Jiajun Zhan, Ruisheng Lin, Xiangfeng Huang, Lijun Lu, Huifeng Li, Banghao Du et Gongduan Fan. « Water Quality-Based Double-Gates Control Strategy for Combined Sewer Overflows Pollution Control ». Water 13, no 4 (18 février 2021) : 529. http://dx.doi.org/10.3390/w13040529.

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The combined sewer overflows (CSO) pollution has caused many serious environmental problems, which has aroused a worldwide concern. Traditional interception-storage measures, which exhibit the disadvantages of the larger storage tank volume and the low concentration, cannot efficiently control the CSO pollution. To solve this problem, a water quality-based double-gate control strategy based on the pollution based real-time control (PBRTC) rule was proposed, and the chemical oxygen demand (COD) concentration was taken as the control index. A case study was carried out in Fuzhou, China as an example, in which the hydraulic and water quality model were constructed to evaluate two schemes. According to the results, compared to the traditional scheme, the double-gate scheme can not only reduce the storage tank volume by 1515 m3, but also increase the average COD interception rate by 1.84 times, thus ensuring the effective and stable operation of the facility. Furthermore, the traditional scheme and the double-gate scheme were evaluated under design rainfall beyond the design return period, which confirmed the high performance of the double-gate scheme in controlling CSO pollution.
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Beutler, E., et W. Kuhl. « Volume control of erythrocytes during storage. The role of mannitol ». Transfusion 28, no 4 (juillet 1988) : 353–57. http://dx.doi.org/10.1046/j.1537-2995.1988.28488265266.x.

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Wuestling, M. D., S. A. Klein et J. A. Duffie. « Promising Control Alternatives for Solar Water Heating Systems ». Journal of Solar Energy Engineering 107, no 3 (1 août 1985) : 215–21. http://dx.doi.org/10.1115/1.3267681.

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Although the performance of solar domestic hot water (SDHW) systems has been well studied, there are several promising control alternatives that have not been thoroughly investigated. Reduced constant collector fluid flow rates, variable collector flow rates, and variable volume storage are several alternative strategies. This paper presents the results of an analytical study using the TRNSYS simulation program in which the thermal performance of SDHW systems utilizing alternative control strategies are compared while operating under realistic conditions in several different climates of the United States. The effects on system performance of time of year, collector area and quality, preheat storage tank volume and energy losses, occurrence of mixing the preheat storage tank, controller temperature deadbands, auxiliary set temperature, total daily usage, and load distribution are investigated.
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Liao, Wenjun, Guanghua Guan et Xin Tian. « Exploring Explicit Delay Time for Volume Compensation in Feedforward Control of Canal Systems ». Water 11, no 5 (23 mai 2019) : 1080. http://dx.doi.org/10.3390/w11051080.

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In the open channel control algorithm, good feed-forward controllers will reduce the transition time of the canal and improve performance. Feedforward control algorithms based on active storage compensation are greatly affected by delay time. However, there is no literature comparing the three most commonly used algorithms, namely volume step compensation, dynamic wave principle and water balance models, under the operation mode of constant water level downstream. In order to compare the existing three algorithms, and to avoid storage calculation by calculating the constant non-uniform water surface line or identification of relevant parameters, combined with the open channel constant gradient flow theory with the storage compensation algorithm, a delay time explicit algorithm is proposed in this study. Tested on the first canal pool of the American Society of Civil Engineers (ASCE) Test Canal 2, the performance of the delay time explicit algorithm is assessed and compared to that of the three conventional algorithms. In the current water intake plan, i.e., in the second hour, the intake begins to take 1.2 m3/s, and the upstream flow of the canal pool changes from 6 m3/s to 7.2 m3/s, among the three existing algorithms, the volume step compensation algorithm has better performance in terms of time to achieve stability, i.e., 1.25 h. The actual adjusted storage accounts for 99.6% of the target adjusted storage, which can basically meet the requirement of compensated storage of the canal pool. The delay time explicit algorithm only needs 1.47 h to stabilize the regulation system. The fluctuation of water level and discharge in the regulation process is small. The actual adjusted storage accounts for 99.6% of the target adjusted storage, which can basically meet the requirement of compensated storage for the canal pool. The delay time calculated by explicit algorithm can provide references for the determination of delay time in feedforward control.
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Broks, K., A. Geenen, F. Nelen et P. Jacobsen. « The Potential of Real Time Control to reduce Combined Sewer Overflow ». Hydrology Research 26, no 3 (1 juin 1995) : 223–36. http://dx.doi.org/10.2166/nh.1995.0013.

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The potential of Real Time Control (RTC) to reduce the overflow volume from a combined sewer system has been investigated for a catchment in Copenhagen, named Strandvaenget. The results have been compared with the alternative of increasing the storage volume of the system. The RTC strategy has been derived using a mathematical optimization and a rule based method. As the only objective is to reduce the Combined Sewer Overflow (CSO), the developed rule based control algorithm can achieve almost the same results as the optimization method. From the results of time series calculations, it can be concluded that the introduction of RTC appears very promising when the mean yearly CSO volume has to be reduced. In this research, the potential of RTC is investigated for an increasing amount of storage volume and for an increasing demand for reduction of CSO volume.
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Huber, W. C., W. J. Wells, I. K. Besaw et M. A. Leisenring. « Hydrologic regionalisation impacts on wet-weather control selection ». Water Science and Technology 54, no 6-7 (1 septembre 2006) : 485–92. http://dx.doi.org/10.2166/wst.2006.604.

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Continuous simulation is performed using the US Environmental Protection Agency (USEPA) Storm Water Management Model (SWMM) to evaluate regional differences around the United States in hydrologic and water quality performance of wet-weather controls. Controls are characterised as being limited by peak inflow rate (i.e. any device with little or no storage, such as screens, filters and some proprietary devices) or by storage capacity (e.g. ponds, tanks). For flow-limited devices, results are presented in the form of percentage of annual runoff volume captured (passing through the device) for a given inflow capacity. For storage-limited devices, results are presented in two forms: percentage of annual runoff volume captured as a function of unit basin size and drawdown (drain) time, and as a percentage of total suspended solids captured, for the same two variables. Regional differences are apparent, driven mainly by variations in rainfall patterns around the country.
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Lund, P. D. « Performance Comparison of Storage Control Strategies in CSHPSS Systems ». Journal of Solar Energy Engineering 109, no 3 (1 août 1987) : 185–91. http://dx.doi.org/10.1115/1.3268204.

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Comprehensive numerical computer simulations have been performed to investigate the effects of various storage control strategies on the thermal performance of a non-heat pump Central Solar Heating Plant with Seasonal Storage (CSHPSS) employing a constructed water volume. Different distribution temperatures, load, collector, and storage sizes were also considered in the analyses. The study indicates that the difference in the yearly solar fraction between a system with a simplified storage control strategy and an optimal, but technically more sophisticated one, would be of the order of 0.05–0.15 units (solar fraction, or, equivalently nonauxiliary fraction units). The worst control showed a performance reduction of 0.1–0.35 units compared to the optimal case, the lower value representing system configurations with adequate storage capacity.
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Oberascher, Martin, Wolfgang Rauch et Robert Sitzenfrei. « Efficient integration of IoT-based micro storages to improve urban drainage performance through advanced control strategies ». Water Science and Technology 83, no 11 (26 avril 2021) : 2678–90. http://dx.doi.org/10.2166/wst.2021.159.

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Abstract The smart rain barrel (SRB) consists of a conventional RB with storage volumes between 200 and 500 L, which is extended by a remotely (and centrally) controllable discharge valve. The SRB is capable of releasing stormwater prior to precipitation events by using high-resolution weather forecasts to increase detention capacity. However, as shown in a previous work, a large-scale implementation combined with a simultaneous opening of discharge valves clearly reduced the effectiveness. The aim of this work was to systematically investigate different control strategies for wet weather by evaluating their impact on sewer performance. For the case study, an alpine municipality was hypothetically retrofitted with SRBs (total additional storage volume of 181 m3). The results showed that combined sewer overflow (CSO) volume and subsequently pollution mass can be reduced by between 7 and 67% depending on rain characteristics (e.g., rain pattern, amount of precipitation) and an applied control strategy. Effectiveness of the SRBs increases with lower CSO volume, whereas more advanced control strategies based on sewer conditions can clearly improve the system's performance compared to simpler control strategies. For higher CSO volume, the SRBs can postpone the start of an CSO event, which is important for a first-flush phenomenon.
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Escandón-Panchana, Paulo, Fernando Morante-Carballo, Gricelda Herrera-Franco, Héctor Rodríguez et Fausto Carvajal. « Fluid Level Measurement System in Oil Storage. Python, Lab-Based Scale ». Mathematical Modelling of Engineering Problems 9, no 3 (30 juin 2022) : 787–95. http://dx.doi.org/10.18280/mmep.090327.

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Refineries, fuel depots, airports and storage terminals commonly use fluid level measurement in storage tanks. Different fluid level measurement techniques and devices differ in the inaccuracy of measurement results, costs, and company needs. In addition, these measurements seek reliability of measurement data, immediate response times, control in operations, oil movement, custody transfer and inventory control. The objective is to develop a computer system for measuring fluid levels in oil storage tanks, using ultrasonic and temperature sensors, creating a web application for an automated measurement system (SAM) for managing volumes of Petroleum. The study methodology is i) Analysis of measurement reports. ii) Selection of physical components of the computer system. iii) SAM algorithm design and web application, and iv) Validate the system. The SAM application developed in open source proposes functional modules for administration, control, security, management and monitoring of storage tanks, the status of physical components and generation of dynamic reports in real-time. The results show the control characteristics of storage tanks such as maximum and minimum volume, temperature, time, precise data records in less time than certain current computer structures.
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Thèses sur le sujet "STORAGE VOLUME CONTROL"

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VERMA, VAIBHAV. « A NOVEL APPROACH OF ASYNCHRONOUS CACHE PREFETCHING FOR STORAGE VOLUME CONTROL ». Thesis, 2012. http://dspace.dtu.ac.in:8080/jspui/handle/repository/13952.

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M.TECH
Cache prefetching is a commonly used technique in which the data is prefetched from the disk to cache in advance, before host actually requests it. These days this technique is used in almost all modern storage volume controllers. One of the widely popular classes of prefetching algorithms is sequential prefetching. But there are two problems with these state-of-the-art sequential prefetching algorithms: (i) cache pollution, which occurs when a prefetched data replaces some more useful prefetched or demandpaged data, and (ii) prefetch wastage, which occurs when prefetched data is evicted by LRU (maintained in the cache) from the cache before it can be used. A sequential prefetching algorithm [BINNY S. GILL at al 2007] can have a fixed (static) or adaptive (dynamic) degree of prefetch and can either have synchronous (when it can prefetch only on amiss) or asynchronous (when it can also prefetch on a hit) way of prefetching. To capture these distinctions there are four classes of prefetching algorithms [BINNY S. GILL at al 2007]: fixed synchronous (FS), fixed asynchronous (FA), adaptive synchronous (AS), and adaptive asynchronous (AA). After exploring all these sets algorithms, their advantages and disadvantages we found that the relatively unexplored class of AA algorithms is in fact the most promising type of algorithms for sequential prefetching. We studied the cache prefetch algorithm presently used in IBM’s SAN volume controller and AMP algorithm [BINNY S. GILL at al 2007]. We also analyzed the basic problems and deficiencies of these two algorithms. In this thesis we will discuss the basic aspect of cache prefetching, and the challenges for a prefetch algorithm in a volume controller. On the basis of knowledge gained by the analysis of above two algorithms we proposed a new algorithm that has capabilities to tackle most of the problems in the discussed 2 | P a g e algorithm. Also we implemented AMP algorithm and our proposed algorithm to compare the effectiveness of the two algorithms. We prepared a cache simulator which simulates a cache and all its basic features like staging and destaging of data from disk. At last we compared the two algorithms on the basis of results we got from the simulation of two algorithms.
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Meng-LungTsai et 蔡孟龍. « Thermofluid analysis of metal-hydride hydrogen storage systems : Effects of exit pressure control and metal-foam volume fraction on system performance ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/41455465367390536148.

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博士
國立成功大學
機械工程學系碩博士班
99
Among all current options, hydrogen appears to be the most promising alternative to fossil fuels, because it has a high calorific value and is environmentally friendly. For safety and operability concerns, hydrogen storage in metal hydrides appears to be a more promising option at present. However, the hydriding and dehydriding processes of metal hydrides are rather complex since simultaneous heat and mass transfers take place with chemical reaction. Therefore, operating conditions and system design would affect the hydrogen supply characteristics directly. In this thesis, on the basis of an existing model, with realistic parameter values appropriate for the hydriding/dehydriding kinetics of LaNi5 (as a specific particular example), we examine several important issues in the design and optimization of metal hydride reactor (MHR). Specifically, in the first part of this thesis, we examine how the temporal mean and steadiness of the hydrogen discharge rate of an MHR vary, when its exit pressure is deceased quadratically with time. To accomplish this task, the aforementioned mathematical model accounting for the hydrogen desorption kinetics of LaNi5 and the mass and energy balance in a cylindrical MHR is solved numerically. The initial and final exit pressures of the MHR are prescribed, whereas the “pressure drop time” (during which the exit pressure is decreasing) and the initial exit-pressure drop rate are the control parameters. Results of a systematic parameter study indicate that, for a given pressure drop time, increasing initial exit-pressure drop rate generally increases the mean hydrogen discharge rate, while there is a particular initial exit-pressure drop rate that minimizes the variance of the hydrogen discharge rate. The MHR exit-pressure variation therefore can be “optimized” to discharge hydrogen with maximized temporal steadiness. Some other strategies for MHR performance improvement also are discussed here. In the second part of this thesis, we examine how the hydriding time of an MHR varies with the volume fraction, ?_mf, of a metal foam installed in the reactor. Technically, the aforementioned mathematical model accounting for the hydrogen absorption kinetics of LaNi5 and variable ?_mf is used to compute the heat and mass transport in a cylindrical MHR. We then demonstrate that, with a fixed amount of metal hydride powder sealed in the reactor, saving a relatively small fraction (say, 1%) of the MHR internal volume to accommodate a metal foam usually suffices to substantially facilitate heat removal from the reactor, thereby greatly shortening the MHR hydriding time. However, for a metal foam of fixed apparent size, increasing ?_mf would reduce the metal hydride content, and hence the maximum hydrogen storage capacity, of the MHR. Consequently, if a prescribed amount of hydrogen is to be stored in the MHR, the hydriding time would decrease with increasing ?_mf at first (due to heat conduction augmentation), reach a minimum at an “optimal” ?_mf value, and then increase drastically due to metal-hydride underpacking.
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Carey, Colin William. « The optimal control of ice-storage air-conditioning systems ». 1993. http://catalog.hathitrust.org/api/volumes/oclc/32483626.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1993.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 154).
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Chang, Chihchen. « System design and control of a kinetic energy storage CVT vehicle ». 1986. http://catalog.hathitrust.org/api/volumes/oclc/15504875.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1986.
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Kaplan, Halit. « Optimum, design and control of "an oil pump, piping - storage system ». 1997. http://catalog.hathitrust.org/api/volumes/oclc/37510965.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1997.
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Tsang, Michael Hin-Cheung. « Real-time digital computer control in a Superconductive Magnetic Energy Storage system ». 1986. http://catalog.hathitrust.org/api/volumes/oclc/15524822.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1986.
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Tsang, Frank Kwok-Wing. « Improved real time computer controls for Superconductive Magnetic Energy Storage for electric utility applications ». 1987. http://catalog.hathitrust.org/api/volumes/oclc/17543877.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1987.
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Shultz, Ted. « An automated procedure to control temperature of water in a storage tank used by the Enhanced Hot Water Drill supporting the IceCube project ». 2005. http://catalog.hathitrust.org/api/volumes/oclc/61251040.html.

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Lozano, Adolfo. « Analysis of a novel thermoelectric generator in the built environment ». Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-4131.

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This study centered on a novel thermoelectric generator (TEG) integrated into the built environment. Designed by Watts Thermoelectric LLC, the TEG is essentially a novel assembly of thermoelectric modules whose required temperature differential is supplied by hot and cold streams of water flowing through the TEG. Per its recommended operating conditions, the TEG nominally generates 83 Watts of electrical power. In its default configuration in the built environment, solar-thermal energy serves as the TEG’s hot stream source and geothermal energy serves as its cold stream source. Two systems-level, thermodynamic analyses were performed, which were based on the TEG’s upcoming characterization testing, scheduled to occur later in 2011 in Detroit, Michigan. The first analysis considered the TEG coupled with a solar collector system. A numerical model of the coupled system was constructed in order to estimate the system’s annual energetic performance. It was determined numerically that over the course of a sample year, the solar collector system could deliver 39.73 megawatt-hours (MWh) of thermal energy to the TEG. The TEG converted that thermal energy into a net of 266.5 kilowatt-hours of electricity in that year. The second analysis focused on the TEG itself during operation with the purpose of providing a preliminary thermodynamic characterization of the TEG. Using experimental data, this analysis found the TEG’s operating efficiency to be 1.72%. Next, the annual emissions that would be avoided by implementing the zero-emission TEG were considered. The emission factor of Michigan’s electric grid, RFCM, was calculated to be 0.830 tons of carbon dioxide-equivalent (CO2e) per MWh, and with the TEG’s annual energy output, it was concluded that 0.221 tons CO2e would be avoided each year with the TEG. It is important to note that the TEG can be linearly scaled up by including additional modules. Thus, these benefits can be multiplied through the incorporation of more TEG units. Finally, the levelized cost of electricity (LCOE) of the TEG integrated into the built environment with the solar-thermal hot source and passive ground-based cold source was considered. The LCOE of the system was estimated to be approximately $8,404/MWh, which is substantially greater than current generation technologies. Note that this calculation was based on one particular configuration with a particular and narrow set of assumptions, and is not intended to be a general conclusion about TEG systems overall. It was concluded that while solar-thermal energy systems can sustain the TEG, they are capital-intensive and therefore not economically suitable for the TEG given the assumptions of this analysis. In the end, because of the large costs associated with the solar-thermal system, waste heat recovery is proposed as a potentially more cost-effective provider of the TEG’s hot stream source.
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Livres sur le sujet "STORAGE VOLUME CONTROL"

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Jajodia, Sushil. Integrity and Internal Control in Information Systems : Volume 1 : Increasing the confidence in information systems. Boston, MA : Springer US, 1997.

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Steve, Whittaker, Wilson Malcolm, Monea Mike, Petroleum Technology Research Centre et International Energy Agency, dir. IEA GHG Weyburn CO₂ monitoring & storage project summary report 2000-2004 : From the proceedings of the 7th International Conference on Greenhouse Gas Control Technologies : September 5-9, Vancouver, Canada : Volume III. Regina : Petroleum Technology Research Centre, 2004.

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(Editor), E. Highley, E. J. Wright (Editor), H. J. Banks (Editor) et B. R. Champ (Editor), dir. Stored-Product Protection : Proceedings of the 6th International Working Conference on Stored-product Protection 2 Volume Set (Cabi Publishing). CABI, 1996.

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Chapitres de livres sur le sujet "STORAGE VOLUME CONTROL"

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He, Wenhui, Xiaoguang Jia, Zheming Jin, Lijun Diao et Zhigang Liu. « The Control Strategy Research of Hybrid EMU Energy Storage System ». Dans Proceedings of the 2013 International Conference on Electrical and Information Technologies for Rail Transportation (EITRT2013)-Volume I, 213–22. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-53778-3_20.

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Wu, Congying, Han Liu, Siming Zhuo et Yonghong Sun. « Research and application of auxiliary control system linkage technology in pumping storage power station ». Dans Frontiers in Civil and Hydraulic Engineering, Volume 1, 437–47. London : CRC Press, 2023. http://dx.doi.org/10.1201/9781003344209-58.

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Thabet, Mohamad, David Sanders et Victor Becerra. « Analytical Model for Compressed Air System Analysis ». Dans Springer Proceedings in Energy, 99–104. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_13.

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AbstractThis paper presents a simple analytical model for a compressed air system (CAS) supply side. The supply side contains components responsible for production, treatment and storage of compressed air such as a compressor, cooler and a storage tank. Simulation of system performance with different storage tank size and system pressure set-point were performed. Results showed that a properly sized tank volume reduces energy consumption while maintaining good system pressure stability. Moreover, results also showed that reducing system pressure reduced energy consumption, however a more detailed model that considers end-user equipment is required to study effect of pressure set-point on energy consumption. Future work will focus on developing a supply-demand side coupled model and on utilizing model in developing new control strategies for improved energy performance.
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Ong, Corinne, Cecilia Tortajada et Ojasvee Arora. « Water Losses ». Dans SpringerBriefs on Case Studies of Sustainable Development, 39–64. Singapore : Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8677-2_5.

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AbstractThe volume of water losses depends largely on the approach to active leakage control of the water networks. Losses comprise physical losses (leakages on transmission and/or distribution networks, at utility’s storage tanks, and on service connections), commercial losses (unauthorised consumption and metering inaccuracies and data handling errors) and unbilled authorised consumption (unbilled metered and unmetered consumption). Reduction of real water losses may be achieved through leak detection and pipe repair and replacement, district metered areas (DMAs), and pressure management. Water loss management for reducing commercial losses may be achieved through water meters and customer reporting’s of illegal connections. All ASEAN countries implement water loss management through a combination of such measures.
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Ramesh, Maneesha Vinodini, Hemalatha Thirugnanam, Balmukund Singh, M. Nitin Kumar et Divya Pullarkatt. « Landslide Early Warning Systems : Requirements and Solutions for Disaster Risk Reduction—India ». Dans Progress in Landslide Research and Technology, Volume 1 Issue 2, 2022, 259–86. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18471-0_21.

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AbstractGlobally the prevalence of landslides has increased, impacting more than 4.8 million people between 1998 and 2017 and reported more than 18,000 casualties [UNDP]. The scenario has worsened dramatically, and it has become imperative to develop early warning systems to save human life. This demands the need for systems that could identify the potential of imminent landslides and disseminate the information related to landslide initiation in real-time. This would provide the opportunity to save lives. However, globally the research on reliable end-to-end systems for early warning of landslides is still in its nascent stage. Therefore, this paper explores in detail the requirements for developing systems for real-time monitoring, detection, and early warning of landslides. An integrated solution for building the real-time landslide monitoring and early warning system to provide community-scale disaster resilience is also proposed. This solution integrates multiple modules such as a heterogeneous sensor system, data storage and management, event detection framework, alert dissemination, and emergency communication system to address issues such as capturing dynamic variability, managing multi-scale voluminous datasets, extracting key triggering information regarding the onset of possible landslide, multilevel alert dissemination, and robust emergency communication among the stakeholders respectively. The paper also presents two case studies of real-time landslide early warning systems deployed in North-eastern Himalayas and Western Ghats of India. These case studies demonstrate the approaches utilized for risk assessment, risk analysis, risk evaluation, risk visualization, risk control, risk communication, and risk governance. The results from the deployed system in the case study areas demonstrate the capability of the IoT system to gather Spatio-temporal triggers for multiple types of landslides, detection and decision of specific scenarios, and the impact of real-time data on mitigating the imminent disaster.
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Gichuhi, Getrude, et Stephen Gitahi. « Sustainable Urban Drainage Practices and Their Effects on Aquifer Recharge ». Dans African Handbook of Climate Change Adaptation, 809–27. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_67.

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AbstractBetween 1994 and 2006, an 18% increase of freshwater flow into the earth’s ocean was recorded, as well as extreme weather events such as prolonged drought and intense floods. Following this period was an era of increased evaporation from oceans and seas, which heightened global warming in Africa. This chapter proposes the use of man-made aquifers recharge processes as methods of draining water into the soil before the runoff water reaches water bodies. Source control involves controlling the volume of water entering drainage systems or rivers by cutting off runoff water through storing for reuse or evapotranspiration as seen in green roofs. Pre-treatment is the use of trenches to filter and remove contaminants from water before getting to water bodies. Retention systems on the other hand is controlling the rate at which water is discharged to waterways by providing water storage areas such as ponds, water retention areas, etc., while Infiltration Systems are areas that allow natural soaking of stormwater runoff to the ground naturally recharging the water table. The proposed methods will see replenishing of the water table, a great leap in the efforts of curbing global warming. This practice can easily be adopted by both individuals and government as we build more and more buildings creating a balance between the need for human settlement and the natural way of water replenishing itself. The methods do not introduce extra costs to an already existing budget. In some cases, the methods help to reduce the costs of projects especially in urban areas. Africa which hosts many of the growing countries sees and will continue to experience surges in urbanization. For such, these methods presented in this topic will be, if implemented, a best method to solve the urban drainage problems before this even occurs.
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Gichuhi, Getrude, et Stephen Gitahi. « Sustainable Urban Drainage Practices and Their Effects on Aquifer Recharge ». Dans African Handbook of Climate Change Adaptation, 1–19. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42091-8_67-1.

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AbstractBetween 1994 and 2006, an 18% increase of freshwater flow into the earth’s ocean was recorded, as well as extreme weather events such as prolonged drought and intense floods. Following this period was an era of increased evaporation from oceans and seas, which heightened global warming in Africa. This chapter proposes the use of man-made aquifers recharge processes as methods of draining water into the soil before the runoff water reaches water bodies. Source control involves controlling the volume of water entering drainage systems or rivers by cutting off runoff water through storing for reuse or evapotranspiration as seen in green roofs. Pre-treatment is the use of trenches to filter and remove contaminants from water before getting to water bodies. Retention systems on the other hand is controlling the rate at which water is discharged to waterways by providing water storage areas such as ponds, water retention areas, etc., while Infiltration Systems are areas that allow natural soaking of stormwater runoff to the ground naturally recharging the water table. The proposed methods will see replenishing of the water table, a great leap in the efforts of curbing global warming. This practice can easily be adopted by both individuals and government as we build more and more buildings creating a balance between the need for human settlement and the natural way of water replenishing itself. The methods do not introduce extra costs to an already existing budget. In some cases, the methods help to reduce the costs of projects especially in urban areas. Africa which hosts many of the growing countries sees and will continue to experience surges in urbanization. For such, these methods presented in this topic will be, if implemented, a best method to solve the urban drainage problems before this even occurs.
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Estrela, Vania V., Jude Hemanth, Hermes J. Loschi, Douglas A. Nascimento, Yuzo Iano et Navid Razmjooy. « Computer vision and data storage in UAVs ». Dans Imaging and Sensing for Unmanned Aircraft Systems. Volume 1 : Control and Performance, 23–45. Institution of Engineering and Technology, 2020. http://dx.doi.org/10.1049/pbce120f_ch2.

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Kirci, Pinar. « Intelligent Techniques for Analysis of Big Data About Healthcare and Medical Records ». Dans Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, 559–82. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3232-3.ch029.

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To define huge datasets, the term of big data is used. The considered “4 V” datasets imply volume, variety, velocity and value for many areas especially in medical images, electronic medical records (EMR) and biometrics data. To process and manage such datasets at storage, analysis and visualization states are challenging processes. Recent improvements in communication and transmission technologies provide efficient solutions. Big data solutions should be multithreaded and data access approaches should be tailored to big amounts of semi-structured/unstructured data. Software programming frameworks with a distributed file system (DFS) that owns more units compared with the disk blocks in an operating system to multithread computing task are utilized to cope with these difficulties. Huge datasets in data storage and analysis of healthcare industry need new solutions because old fashioned and traditional analytic tools become useless.
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Takeuchi, H., T. Ikeda, S. Nagasawa et S. Tada. « The method for increasing the waterpower generation by using the storage volume for flood control in the multipurpose dams ». Dans Sustainable and Safe Dams Around the World, 1576–89. CRC Press, 2019. http://dx.doi.org/10.1201/9780429319778-141.

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Actes de conférences sur le sujet "STORAGE VOLUME CONTROL"

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Li, Hsin-Yu S., et Demetri Psaltis. « Volume storage in photorefractive disks ». Dans International Symposium on Optoelectronics in Computers, Communications, and Control, sous la direction de Ken Y. Hsu et Hua-Kuang Liu. SPIE, 1992. http://dx.doi.org/10.1117/12.131204.

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Gardner, K., PR Helfet et RJ Longman. « Volume Production of Plasmon Optical Discs ». Dans Optical Data Storage. Washington, D.C. : Optica Publishing Group, 1985. http://dx.doi.org/10.1364/ods.1985.wdd5.

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The success of any product intended for use as a high capacity digital storage medium depends critically on the quality control procedures adopted during manufacture. This requires that simple test methods which can be routinely applied during volume manufacture should be developed. The Plasmon disc is unique in its construction and lends itself to simple monitoring which can be used not only to control the Moth Eye texture but to provide invaluable data on the satisfactory operation of all stages in the production process..
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Fthenakis, V. M., P. D. Moskowitz et R. D. Sproull. « Control of accidental releases of hydrogen selenide in vented storage cabinets ». Dans AIP Conference Proceedings Volume 166. AIP, 1988. http://dx.doi.org/10.1063/1.37134.

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Gu, Claire, John H. Hong et Pochi Yeh. « Volume holographic storage in photorefractive media (Invited Paper) ». Dans International Symposium on Optoelectronics in Computers, Communications, and Control, sous la direction de Ken Y. Hsu et Hua-Kuang Liu. SPIE, 1992. http://dx.doi.org/10.1117/12.131203.

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Miao, Bei-Bei, Chao Dou et Xue-Bo Jin. « Main Trend Extraction of the Storage Volume for Internet Data Center ». Dans 2016 International Symposium on Computer, Consumer and Control (IS3C). IEEE, 2016. http://dx.doi.org/10.1109/is3c.2016.250.

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McDonald, Mark, et Mark A. Neifeld. « A technique for control of crosstalk noise in volume holography ». Dans Holography. Washington, D.C. : Optica Publishing Group, 1996. http://dx.doi.org/10.1364/holography.1996.hmb.3.

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Volume holographic data storage offers many potential advantages over conventional magnetic mass storage including high parallelism, fast access, and high storage capacity. The high capacity of volume holography is partially attributable to the Bragg selectivity of thick media. For angularly multiplexed uniform gratings in media of finite thickness the Bragg diffraction efficiency has a well known sinc2(ϑ) dependence vs. dephasing (i.e., dephasing ϑ ∝ Δθ reconstruction angle for angular multiplexing). When a desired hologram is read out at a particular reconstruction angle, holograms stored at other angles will also be reconstructed, albeit with much lower efficiency. The superposition of the undesired reconstructions is known as crosstalk and this phenomenon has been investigated by several authors1,2. Such crosstalk will result in noise on the data detected from the desired hologram and can be diminished by reducing the density of the angular multiplexing2. Thus, crosstalk forms an upper bound on volume holographic memory density and capacity in the limit of small fixed noise sources. In this paper, we will consider the storage capacity limit imposed by crosstalk for a grating that is uniform throughout the finite medium and compare this with the limit obtained when the grating is apodized to reduce crosstalk. We will also show experimental verification of the apodization effect.
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Sonier, Fernand, Pierre Lehuen et Raouf Nabil. « Full-Field Gas Storage Simulation Using a Control-Volume Finite-Element Model ». Dans SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1993. http://dx.doi.org/10.2118/26655-ms.

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Serokhvostov, S. V., et T. E. Churkina. « Optimal control for the sun-powered airplane with taking into account efficiency of onboard accumulator charging-discharging and charge limits ». Dans Progress in Flight Dynamics, Guidance, Navigation, and Control – Volume 10, sous la direction de C. Vallet, D. Choukroun, C. Philippe, A. Nebylov et M. Ganet. Les Ulis, France : EDP Sciences, 2018. http://dx.doi.org/10.1051/eucass/201810145.

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The problem of optimal control for the aircraft with the electric powerplant and solar cells for the multiday flight is investigated using the more precise equation of motion comparing to the previous investigations. The cases of some restrictions on aircraft energy storage and peculiarities of its charge and discharge are also analyzed. Pontryagin’s maximum principle is utilized. Optimal trajectories were obtained for the cases considered.
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Sancken, Caleb J., et Perry Y. Li. « Optimal Efficiency-Power Relationship for an Air Motor-Compressor in an Energy Storage and Regeneration System ». Dans ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2749.

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Compressing air from atmospheric pressure into high pressure storage and expanding the compressed air in reverse is a means of energy storage and regeneration for fluid power systems that can potentially improve energy density by an order of magnitude over existing accumulators. This approach, known as the “open accumulator” energy storage concept, as well as other applications such as compressed air powered cars, rely on the availability of efficient and power-dense air motor/compressors. Increasing power is typically accompanied by reducing efficiency with the trade-off being determined by the heat transfer capability. In this paper, the authors present the Pareto optimal trade-off between the efficiency and power for a given heat transfer capability and ambient temperature in an air motor/compressor to achieve a given pressure ratio. It is shown that the optimal frontier is generated by an air motor/compressor that compresses and expands the air via a sequence of adiabatic, isothermal, and adiabatic processes. For the same efficiency of 80%, such an optimal volume trajectory achieves 3–5 times increased power over ad-hoc volume trajectories. It is also shown that approximating the infinitely fast adiabatic portions by finite time processes do not significantly reduce the effectiveness of the optimal operating strategy.
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Spannagl, M., G. Valet et W. Schramm. « VARIATION OF FUNCTIONAL PLATELET PARAMETERS DURING STORAGE AND DURING VENOUS OCCLUSSION MEASURED ». Dans XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644569.

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Information on platelet function would be of great importance for many clinical situations in addition to platelet count and bleeding time. It was the purpose of this study to test Di0c6 (3,3-dihexyl-oxacarbocyanine: transmembrane potential), AO (acridine orange: granular content), and ADB (1,4-di-acetoxy-2,3-dicyanobenzene: intracellular esterase-activity and pH) stained platelets after 1 and 5 hours storage (anticoagulated with EDTA, Heparin and Sodium-Citrate) and 2, 6, 12 and 20 minutes after venous occlussion (immediately diluted in HEPES-Buffer (1:50)). A fresh whole blood sample diluted in Buffer served as control. All blood samples were gained from normal persons. Platelets were finally diluted 1:200 in HEPES buffered saline and stained. Cell volume, green and blue fluorescence were then measured in a Fluovo-Metricell-II flow cytometer.- The mean platelet volume increased to 111% (1 h) and 117% (5 h) of control during storage. The volume remained stable during venous occlussion. - The transmembrane potential (Di0c6) decreased to 52% of control after 5 hours storage. We saw an increase to 141% after 20 minutes venous occlussion.- The granular content (A0) decreased to 81% of control during storage. There was no variation during VOT.- Esterase activity (ADB) remained constant during storage and had the lowest coefficient of variation (CV = 51%). There was an increase to 132% after 20 minutes venous occlussion.- We saw most increase in volume and decrease in Di0c6 and A0 dye content after storage in EDTA compared to Citrate and Heparin.The present results show that the dyes of functional platelet parameters are sensitively picked up by flow cytometry. The methodology seems attractive for clinical purposes because measurements can be performed in diluted blood samples within less than five minutes after venipuncture.
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Rapports d'organisations sur le sujet "STORAGE VOLUME CONTROL"

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Threadgill, P. L., et M. J. Cola. L51601 Review of Procedures for Welding Onto Pressurized Pipelines. Chantilly, Virginia : Pipeline Research Council International, Inc. (PRCI), mai 1989. http://dx.doi.org/10.55274/r0010279.

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The welding of attachments onto pressurized pipelines and storage vessels (referred to as hot tapping) is a necessary and common operation in the transmission industry. Care must be exercised to choose a welding procedure that can reduce the risk of burn through and the formation of very high hardness levels in the heat-affected zone (HAZ) that can lead to a higher than normal risk of cracking. This report summarizes a state-of-the-art review of current procedures for hot tap welding on pressurized pipelines. All open literature related to hot tap welding were examined and catalogued, and areas requiring further research were identified. Although a large volume of literature exists on this subject, the majority gives accounts of successful repair work on specific items, rather than describing generalized safe procedures. The methods and controls vary widely; no national or industry standards exist.
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Desiderati, Christopher. Carli Creek Regional Water Quality Project : Assessing Water Quality Improvement at an Urban Stormwater Constructed Wetland. Portland State University, 2022. http://dx.doi.org/10.15760/mem.78.

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Stormwater management is an ongoing challenge in the United States and the world at-large. As state and municipal agencies grapple with conflicting interests like encouraging land development, complying with permits to control stormwater discharges, “urban stream syndrome” effects, and charges to steward natural resources for the long-term, some agencies may turn to constructed wetlands (CWs) as aesthetically pleasing and functional natural analogs for attenuating pollution delivered by stormwater runoff to rivers and streams. Constructed wetlands retain pollutants via common physical, physicochemical, and biological principles such as settling, adsorption, or plant and algae uptake. The efficacy of constructed wetlands for pollutant attenuation varies depending on many factors such as flow rate, pollutant loading, maintenance practices, and design features. In 2018, the culmination of efforts by Clackamas Water Environment Services and others led to the opening of the Carli Creek Water Quality Project, a 15-acre constructed wetland adjacent to Carli Creek, a small, 3500-ft tributary of the Clackamas River in Clackamas County, OR. The combined creek and constructed wetland drain an industrialized, 438-acre, impervious catchment. The wetland consists of a linear series of a detention pond and three bioretention treatment cells, contributing a combined 1.8 acres of treatment area (a 1:243 ratio with the catchment) and 3.3 acre-feet of total runoff storage. In this study, raw pollutant concentrations in runoff were evaluated against International Stormwater BMP database benchmarks and Oregon Water Quality Criteria. Concentration and mass-based reductions were calculated for 10 specific pollutants and compared to daily precipitation totals from a nearby precipitation station. Mass-based reductions were generally higher for all pollutants, largely due to runoff volume reduction on the treatment terrace. Concentration-based reductions were highly variable, and suggested export of certain pollutants (e.g., ammonia), even when reporting on a mass-basis. Mass load reductions on the terrace for total dissolved solids, nitrate+nitrite, dissolved lead, and dissolved copper were 43.3 ± 10%, 41.9 ± 10%, 36.6 ± 13%, and 43.2 ± 16%, respectively. E. coli saw log-reductions ranging from -1.3 — 3.0 on the terrace, and -1.0 — 1.8 in the creek. Oregon Water Quality Criteria were consistently met at the two in-stream sites on Carli Creek for E. coli with one exception, and for dissolved cadmium, lead, zinc, and copper (with one exception for copper). However, dissolved total solids at the downstream Carli Creek site was above the Willamette River guidance value 100 mg/L roughly 71% of the time. The precipitation record during the study was useful for explaining certain pollutant reductions, as several mechanisms are driven by physical processes, however it was not definitive. The historic rain/snow/ice event in mid-February 2021 appeared to impact mass-based reductions for all metals. Qualitatively, precipitation seemed to have the largest effect on nutrient dynamics, specifically ammonia-nitrogen. Determining exact mechanisms of pollutant removals was outside the scope of this study. An improved flow record, more targeted storm sampling, or more comprehensive nutrient profiles could aid in answering important questions on dominant mechanisms of this new constructed wetland. This study is useful in establishing a framework and baseline for understanding this one-of-a-kind regional stormwater treatment project and pursuing further questions in the future.
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