Log in

Relevant bibliographies by topics / Hydroplane / Journal articles

To see the other types of publications on this topic, follow the link: Hydroplane.

Journal articles on the topic 'Hydroplane'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 48 journal articles for your research on the topic 'Hydroplane.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Qin, Yu, Xiao Liang, and Jia Ning Zhang. "Numerical Simulation Calculation of Hydroplane Direct Route Motion Based on FLUENT." Advanced Materials Research 569 (September 2012): 368–75. http://dx.doi.org/10.4028/www.scientific.net/amr.569.368.

Full text

Abstract:

Aiming at hydrodynamic performance prediction for hydroplane motion, numerical simulation calculation for direct route motion of a hydroplane was carried out under FLUENT software platform by using VOF method and RNG k-ε model and solving Navier-Stokes equation. Evolution of ship resistance was obtained as the velocity change, and flow field situation and dynamic pressure variation of hydroplane hull bottom were reflected intuitively. By comparing the results of FLUENT calculation and ship model experiment and theoretical estimation, analyzing, especially wake current, it was verified that numerical simulation calculation of hydroplane direct route motion and hydrodynamic performance prediction based on FLUENT are feasible and precise enough.

APA, Harvard, Vancouver, ISO, and other styles

2

Virliani, Putri, I. Ketut Suastika, and Wasis Dwi Aryawan. "ANALISA NUMERIK OLAH GERAK KAPAL SELAM DENGAN VARIASI BENTUK AFTER BODY." Jurnal Kelautan Nasional 12, no. 2 (August 6, 2017): 73. http://dx.doi.org/10.15578/jkn.v12i2.5703.

Full text

Abstract:

Dalam pengoperasian kapal selam, olah gerak (maneuver) yang baik diperlukan pada saat melakukan serangan maupun menghindar dari serangan musuh. Salah satu komponen teknologi kapal selam yang perlu dikembangkan untuk mencapai maneuver yang baik adalah komponen hydroplane yang tersusun pada bagian after body kapal selam. Kapal selam itu dapat melakukan olah gerak vertikal mapun horizontal dengan menggunakan sistem kendali gerak (hydroplane). Ukuran geometri dan bentuk lambung dari kapal selam mempengaruhi karakteristik maneuver kapal selam. Untuk mencapai karakteristik maneuver yang diinginkan diperlukan perancangan ulang sistem kendali hydroplane. Penelitian ini diawali dengan membuat variasi bentuk after body kapal selam dan memprediksi lintasan gerak melingkar kapal selam. Perhitungan gaya hidrodinamika dan momen dilakukan secara numerik dengan menggunakan software Computational Fluid Dynamic (CFD-CFX). Kemudian dengan menggunakan software MATLAB , data-data hasil dari perhitungan CFD dapat dimasukkan ke dalam persamaan untuk diturunkan menjadi kurva yang menunjukkan lintasan gerak melingkar kapal selam.

APA, Harvard, Vancouver, ISO, and other styles

3

Matveev, Konstantin I. "Modeling of longitudinal motions of a hydroplane boat." Ocean Engineering 42 (March 2012): 1–6. http://dx.doi.org/10.1016/j.oceaneng.2012.01.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

AZUMA, Ryoukei, Tadao ITO, Hideaki HANDA, Tetsuya HIRAISHI, Takahiro SUGANO, and Yasunori NIHEI. "HYDRAULIC EXPERIMENTS ON RESPONSE CHARACTERISTICS OF HYDROPLANE TSUNAMI BARRIER." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71, no. 2 (2015): I_1087—I_1092. http://dx.doi.org/10.2208/kaigan.71.i_1087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Dolunts, G. V., L. B. Maslov, and M. A. Zhmaylo. "The hydroplane body development of design and topological optimization." IOP Conference Series: Materials Science and Engineering 1129, no. 1 (April 1, 2021): 012015. http://dx.doi.org/10.1088/1757-899x/1129/1/012015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

GOTOH, Hitoshi, Hiroyuki IKARI, Koji TONOMO, Takahiro SUGANO, Ryoukei AZUMA, Tadao ITO, and Yasuyuki SUGAWARA. "NUMERICAL SIMULATION ON HYDROPLANE TSUNAMI BARRIER BY ACCURATE PARTICLE METHOD." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71, no. 2 (2015): I_1051—I_1056. http://dx.doi.org/10.2208/kaigan.71.i_1051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

AZUMA, Ryoukei, Tadao ITO, Hideaki HANDA, Toshihiro UEKI, Tetsuya HIRAISHI, Chihiro SEKIYA, and Takahiro SUGANO. "FULL-SCALE MODEL EXPERIMENTS ON RESPONSE CHARACTERISTICS OF HYDROPLANE TSUNAMI BARRIER." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72, no. 2 (2016): I_1099—I_1104. http://dx.doi.org/10.2208/kaigan.72.i_1099.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

HONHART, FREDERICK L. "From Sport to Business: Evolution of Unlimited Hydroplane Racing 1946-60." Journal of Popular Culture 43, no. 1 (February 2010): 120–36. http://dx.doi.org/10.1111/j.1540-5931.2010.00733.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Honhart, Frederick L. "Speed and Spray: Technology, Its Implication, and Unlimited Hydroplane Racing 1946-1988." Journal of American Culture 13, no. 1 (March 1990): 19–29. http://dx.doi.org/10.1111/j.1542-734x.1990.1301_19.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

AZUMA, Ryoukei, Tadao ITO, Hideaki Handa, Ryo Yamashiki, Tetsuya HIRAISHI, and Takahiro Sugano. "Performance Evaluation of Hydroplane Tsunami Barrier by Means of Small Hydraulic Model Experiments." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70, no. 2 (2014): I_951—I_955. http://dx.doi.org/10.2208/kaigan.70.i_951.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

AZUMA, Ryoukei, Tadao ITO, Hideaki HANDA, Tetsuya HIRAISHI, and Takahiro SUGANO. "WAVE REDUCTION EFFECT OF HYDROPLANE TSUNAMI BARRIER IN TERMS OF HYDRAULIC MODEL EXPERIMENTS." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71, no. 2 (2015): I_1081—I_1086. http://dx.doi.org/10.2208/kaigan.71.i_1081.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Regent, Aleksandar, Neven Szabo, and Mladen Vuković. "On the economy of aerial firefighting using Canadair CL-415." Sigurnost 60, no. 1 (March 23, 2018): 49–56. http://dx.doi.org/10.31306/s.60.1.5.

Full text

Abstract:

SUMMARY: Innovations introduced in firefighting practice should help maximise the cost/benefit relation. One of the largest costs of firefighting in Croatia is the cost of aerial firefighting. The majority of the costs are incurred by the procurement, maintenance and actual operation of the hydroplane Bombardier CL-415. Published data indicate that these costs are significantly underestimated in Croatia. The paper purports to show the actual costs of wildfire fighting using these planes. An additional cost, if class A foam is used, amounts to 12-13% of total costs. One of the conclusions is that in order to increase the total efficiency of fire extinguishing and cut the cost would be to use Class A foam, since the extra cost is, most likely, significantly smaller than the proven advantages of this agent.

APA, Harvard, Vancouver, ISO, and other styles

13

Tambunan, Indra H., Patar E. Sitorus, Hendra A. Putra, Jin Hwan Ko, Hoon Cheol Park, and Tae Sam Kang. "Pitch Oscillation Control of Hydroplane in Dual System of Lab-scale Flapping Type Tidal Energy Harvester." Journal of Instrumentation, Automation and Systems 1, no. 3 (January 8, 2016): 91–96. http://dx.doi.org/10.21535/jias.v1i3.175.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

David, Jesse, Robert Bauer, and Mae Seto. "Coupled Hydroplane and Variable Ballast Control System for Autonomous Underwater Vehicle Altitude-Keeping to Variable Seabed." IEEE Journal of Oceanic Engineering 43, no. 4 (October 2018): 873–87. http://dx.doi.org/10.1109/joe.2017.2771747.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Grogger, H., and M. Weiss. "Calculation of the Three-Dimensional Free Surface Flow Around an Automobile Tire." Tire Science and Technology 24, no. 1 (January 1, 1996): 39–49. http://dx.doi.org/10.2346/1.2137511.

Full text

Abstract:

Abstract The 3D flow around a 195/65R15 automobile tire is calculated. To describe the free surface behavior with the usual conservation equations for mass and momentum, an additional equation for the water mass fraction is solved. For modeling the effects of turbulence, the well-known k,ε-model is used. The resulting fluid mechanics equation system is solved by a finite volume method. A finite element calculation considering inflation pressure and tire deflection gives the surface for the flow calculation. The goal is to determine the lift force of the tire at a certain velocity to predict the tendency of the tire to hydroplane. For a slick tire, the calculated pressure distribution in the water is presented. The lift and drag forces are evaluated from the pressure acting directly on the tire surface. The calculation is performed at three different velocities, 30, 60, and 90 km/h. A comparison with experimental data shows good agreement regarding the pressure distribution on the road in front of the tire.

APA, Harvard, Vancouver, ISO, and other styles

16

Start, Marc R., Jeong Kim, and William D. Berg. "Potential Safety Cost-Effectiveness of Treating Rutted Pavements." Transportation Research Record: Journal of the Transportation Research Board 1629, no. 1 (January 1998): 208–13. http://dx.doi.org/10.3141/1629-23.

Full text

Abstract:

Pavement rutting is a problem that has unknown consequences from a safety-based point of view. It is assumed that the wheelpath fills with water in wet-weather situations, thus increasing the potential for a vehicle to hydroplane. A study was conducted to quantify how pavement rutting affects accident rates and to evaluate possible safety-based guidelines for the treatment of pavement rutting. Rut depth, traffic volumes, and accident databases maintained by the Wisconsin Department of Transportation for undivided rural highways were then analyzed to identify statistical trends and relationships. Accidents were categorized as rut-related if the prevailing conditions could be potentially associated with the occurrence of hydroplaning. Rut depth measurements were average values for both directions of 1.8-km (1.1-mi) segments and represent the average elevation difference between the tire paths and the high point between them. The results of the statistical analyses indicated that the defined rut-related accident rate begins to increase at a significantly greater rate as rut depths exceed 7.6 mm (0.3 in.). The cost-effectiveness of potential accident reductions associated with reductions in the relative amount of rutted pavement was also evaluated.

APA, Harvard, Vancouver, ISO, and other styles

17

GOTOH, Hitoshi, Hiroyuki IKARI, Koji TONOMO, Tadao ITO, and Yasuyuki SUGAWARA. "ON APPLICABILITY OF ACCURATE PARTICLE METHOD TO PREDICTION OF TENSILE FORCE ACTING ON CONTROL BELT OF HYDROPLANE TSUNAMI BARRIER." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72, no. 2 (2016): I_1093—I_1098. http://dx.doi.org/10.2208/kaigan.72.i_1093.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Hardisty, Jack. "Assessment of Tidal Current Resources: Case Studies of Estuarine and Coastal Sites." Energy & Environment 18, no. 2 (March 2007): 233–49. http://dx.doi.org/10.1177/0958305x0701800204.

Full text

Abstract:

The potential for tidal stream power in North Western European waters is large and a number of axial flow, vertical rotor and oscillating hydroplane schemes are approaching full scale design and construction. The accurate determination of the available or potential fluid power is being addressed by, in particular, the regulatory bodies as they move towards the establishment of industry standards and the identification and designation of licensing areas. A generic formulation is developed here which utilises Admiralty tidal diamond data and the arithmetic summation of harmonics due to the lunar semi-diurnal, the solar semi-diurnal and (for shallow water and estuarine sites) the lunar quarter diurnal components. Numerical and sensitivity analyses show that the long term potential power is sensitive to the amplitudes of the harmonics but insensitive to the frequencies and phase differences. The results are applied to estuarine sites off Immingham and at Hull Roads in the Humber and to a shallow water, coastal site off Weston-super-Mare in the Bristol Channel. The results indicate that the shore side energy output from a small scale, meso-generation, 100 m2 capture area device with 60% efficiency varies from about 600 MWha–1 in the Bristol Channel to about 900 MWha–1 in the Humber where the ebb dominated tide flows for longer durations and at slightly higher speeds.

APA, Harvard, Vancouver, ISO, and other styles

19

Shams, Alireza, Wayne A. Sarasua, Afshin Famili, William J. Davis, Jennifer H. Ogle, Leonildo Cassule, and Adika Mammadrahimli. "Highway Cross-Slope Measurement using Mobile LiDAR." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 39 (April 18, 2018): 88–97. http://dx.doi.org/10.1177/0361198118756371.

Full text

Abstract:

Ensuring adequate pavement cross-slope on highways can improve driver safety by reducing the potential for ponding to occur or vehicles to hydroplane. Mobile laser scanning (MLS) systems provide a rapid, continuous, and cost-effective means of collecting accurate 3D coordinate data along a corridor in the form of a point cloud. This study provides an evaluation of MLS systems in terms of the accuracy and precision of collected cross-slope data and documentation of procedures needed to calibrate, collect, and process this data. Mobile light detection and ranging (LiDAR) data were collected by five different vendors on three roadway sections. The results indicate the difference between ground control adjusted and unadjusted LiDAR derived cross-slopes, and field surveying measurements less than 0.19% at a 95% confidence level. The unadjusted LiDAR data incorporated corrections from an integrated inertial measurement unit and high-accuracy real-time kinematic GPS, however it was not post-processed adjusted with ground control points. This level of accuracy meets suggested cross-slope accuracies for mobile measurements (±0.2%) and demonstrates that mobile LiDAR is a reliable method for cross-slope verification. Performing cross-slope verification can ensure existing pavement meets minimum cross-slope requirements, and conversely is useful in identifying roadway sections that do not meet minimum standards, which is more desirable than through crash reconnaissance where hydroplaning was evident. Adoption of MLS would enable the South Carolina Department of Transportation (SCDOT) to address cross-slope issues through efficient and accurate data collection methods.

APA, Harvard, Vancouver, ISO, and other styles

20

Lopes, Marília Barcelos Souza, Taynar Coelho de Oliveira Tavares, Danilo Alves Veloso, Niléia Cristina da Silva, and Rodrigo Ribeiro Fidelis. "Cowpea bean production under water stress using hydrogels." Pesquisa Agropecuária Tropical 47, no. 1 (March 2017): 87–92. http://dx.doi.org/10.1590/1983-40632016v4743398.

Full text

Abstract:

ABSTRACT The population increase and the need of intensifying food production, coupled with the scarcity of water resources, have led to the search of alternatives that reduce consumption and optimize the water use during cultivation. In this context, hydrogels become a strategy in agricultural management, due to their water retention capacity in the soil and availability to plants. This study aimed at evaluating the efficiency of hydrogels on the development and production of cowpea bean ('Sempre-verde' cultivar) under water stress, in a greenhouse. The experiment was performed in a randomized block design, with five replications, in a 4 x 5 factorial scheme, consisting of four types of hydrogel (Hydroplan-EB HyA, with granulometry of 1-3 mm; Hydroplan-EB HyB, with granulometry of 0.5-1 mm; Hydroplan-EB HyC, with granulometry < 0.5 mm; Polim-Agri, with granulometry of 1-0.5 mm) and five concentrations (0 g pot-1; 1.5 g pot-1; 3 g pot-1; 4.5 g pot-1; 6 g pot-1). The following traits were evaluated: number of pods per plant, number of grains per pod and grain yield. The highest concentration (6 g pot-1) resulted in a higher number of pods and yield for all the hydrogels, especially for HyC and Polim-Agro, which presented 7.4 pods plant-1 and 7.0 pods plant-1, with yield of 15.43 g plant-1 and 16.68 g plant-1, respectively. The use of hydrogel shows to be efficient for reducing yield losses under water stress.

APA, Harvard, Vancouver, ISO, and other styles

21

Bayón, L., J. M. Grau, M. M. Ruiz, and P. M. Suárez. "Optimization of a Pumped-Storage Fixed-Head Hydroplant: The Bang-Singular-Bang Solution." Mathematical Problems in Engineering 2011 (2011): 1–11. http://dx.doi.org/10.1155/2011/561592.

Full text

Abstract:

We consider the problem of the optimization of the functioning of a pumped-storage hydroplant. The problem can be mathematically formulated as an optimal control problem, and when the considered hydromodel is of the fixed-head type, an added complication arises: the solution is of the bangsingular-bang type. In this paper, we propose a simple and efficient optimization algorithm to find the solution.

APA, Harvard, Vancouver, ISO, and other styles

22

Fidelis, Rodrigo Ribeiro, Guilherme Sousa Da Silva, Wagner Augusto Rauber, Larissa Urzêdo Rodrigues, Vitor L. Nascimento, and Susana Cristine Siebeneichler. "Biochemical quality of cowpea beans grown under water-deficit maintained with hydrogel." Revista de Ciencias Agrícolas 37, no. 1 (June 20, 2020): 38–50. http://dx.doi.org/10.22267/rcia.203701.123.

Full text

Abstract:

Investigations related to the effects of the hydrogel use in a water-deficit conditions on the biochemical composition of the harvested products are scarce. The aim of this study was to verify the influence of hydrogel on the biochemical response of cowpea beans produced under water-deficit in southern Tocantins. The experiment was a randomized complete block design with four replications. The treatments were obtained in a 2x5 factorial scheme, being: two sources of hydrogel (Hydroplan-EB HyC and Polim-Agri PP) and five concentrations (0, 5, 10, 15, and 20kg ha-1). After harvesting, the grains of cowpea, BRS Vinagre cultivar, were ground and chemically analyzed. The oil content of the seeds agreed with the reference values. The use of Polim-Agri PP promoted the best levels of amino acids (0.38mg g-1) and proteins (243.22mg g-1) of the grains. The carbohydrate content of them (Ȳ= 81.44mg g-1) was better using Hydroplan-EB HyC, regardless of the concentration applied. The application of 6.28kg ha-1 of Polim-Agri PP provided the highest starch content (842g mg-1). The use of hydrogel improves the biochemical quality of cowpea beans produced under water deficit in southern Tocantins.

APA, Harvard, Vancouver, ISO, and other styles

23

Hope, Linton. "THE EFFECT OF BEAM ON THE SPEED OF HYDROPLANES." Journal of the American Society for Naval Engineers 27, no. 2 (March 18, 2009): 514–17. http://dx.doi.org/10.1111/j.1559-3584.1915.tb00412.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Mishra, Eshani, and Sachin Tiwari. "Comparative Analysis of Fuzzy Logic and PI Controller Based Electronic Load Controller for Self-Excited Induction Generator." Advances in Electrical Engineering 2017 (August 6, 2017): 1–9. http://dx.doi.org/10.1155/2017/5620830.

Full text

Abstract:

Rural areas suffer from limited grid connectivity. Small hydroplants can provide electricity at a cheap cost with low environmental impact in these regions. Self-excited induction generators are widely used in hydroplants since they operate on a standalone basis because of the connection of capacitor bank that provides reactive power at no load. However, SEIGs suffer from poor voltage and frequency regulation. Thus, an electronic load controller (ELC) is connected across SEIG to regulate voltage and frequency. Generally, the control scheme for an ELC circuit is based on the conventional proportional integral control, which is easy to implement and performs well under linear load conditions. However, PI controllers handle nonlinearity poorly. This paper presents a fuzzy logic control (FLC) based control scheme for ELC in a constant power generation system (SEIG). The control scheme is designed and simulated in MATLAB under both linear and nonlinear load conditions. A comparison of both the controllers is conducted which highlights the superiority of the fuzzy logic control scheme.

APA, Harvard, Vancouver, ISO, and other styles

25

Wapet, Daniel Eutyche Mbadjoun, Salomé Ndjakomo Essiane, René Wamkeue, and Patrick Juvet Gnetchejo. "Hydropower Production Optimization from Inflow: Case Study of Songloulou Hydroplant." Journal of Power and Energy Engineering 08, no. 08 (2020): 37–52. http://dx.doi.org/10.4236/jpee.2020.88003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Li, Caifang, Yichun Wu, Hao Liang, and Miao Li. "Discussion on joint operation of wind farm and pumped-storage hydroplant." IOP Conference Series: Earth and Environmental Science 100 (December 2017): 012075. http://dx.doi.org/10.1088/1755-1315/100/1/012075.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Burykin, Yu B. "Relay-ray way of hydroplasm movement in hydroid colonies." Russian Journal of Developmental Biology 44, no. 2 (March 2013): 90–99. http://dx.doi.org/10.1134/s1062360413020021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Bayón, L., J. M. Grau, M. M. Ruiz, and P. M. Suárez. "An algorithm for bang–bang control of fixed-head hydroplants." International Journal of Computer Mathematics 88, no. 9 (June 2011): 1949–59. http://dx.doi.org/10.1080/00207160.2010.502934.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Breton, M., S. Hachem, and A. Hammadia. "Accounting for Losses in the Optimization of Production of Hydroplants." IEEE Transactions on Energy Conversion 19, no. 2 (June 2004): 346–51. http://dx.doi.org/10.1109/tec.2004.827043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Bayón, L., J. M. Grau, M. M. Ruiz, and P. M. Suárez. "Influence of the elevation-storage curve in the optimization of hydroplants." International Journal for Simulation and Multidisciplinary Design Optimization 3, no. 2 (April 2009): 326–31. http://dx.doi.org/10.1051/ijsmdo:2009006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Favro, S., M. Kovačić, and A. Zekic. "Hydroplanes as a possible solution in connection of the coastal and Island area of Croatia." International Journal of Sustainable Development and Planning 11, no. 3 (July 21, 2016): 275–84. http://dx.doi.org/10.2495/sdp-v11-n3-275-284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Lamond, Bernard F., and Abdeslem Boukhtouta. "Neural Approximation for the Optimal Control of a Hydroplant with Random Inflows and Concave Revenues." Journal of Energy Engineering 131, no. 1 (April 2005): 72–95. http://dx.doi.org/10.1061/(asce)0733-9402(2005)131:1(72).

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Dongyang, Chen, Laith K. Abbas, Rui Xiaoting, Xiao Qing, and Pier Marzocca. "Dynamic modeling of sail mounted hydroplanes system- Part I: Modal characteristics from a transfer matrix method." Ocean Engineering 130 (January 2017): 629–44. http://dx.doi.org/10.1016/j.oceaneng.2016.12.020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Breton, Michèle, Saeb Hachem, and Abdelghani Hammadia. "A decomposition approach for the solution of the unit loading problem in hydroplants." Automatica 38, no. 3 (March 2002): 477–85. http://dx.doi.org/10.1016/s0005-1098(01)00225-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Ogheneochuko, D. E., and O. U. Orie. "Optimization of superplasticized concrete using Taguchi approach: a case study of hydroplast 200." Nigerian Journal of Technology 37, no. 3 (July 24, 2018): 611. http://dx.doi.org/10.4314/njt.v37i3.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Dias, Bruno H., André L. M. Marcato, Reinaldo C. Souza, Murilo P. Soares, Ivo C. Silva Junior, Edimar J. de Oliveira, Rafael B. S. Brandi, and Tales P. Ramos. "Stochastic Dynamic Programming Applied to Hydrothermal Power Systems Operation Planning Based on the Convex Hull Algorithm." Mathematical Problems in Engineering 2010 (2010): 1–20. http://dx.doi.org/10.1155/2010/390940.

Full text

Abstract:

This paper presents a new approach for the expected cost-to-go functions modeling used in the stochastic dynamic programming (SDP) algorithm. The SDP technique is applied to the long-term operation planning of electrical power systems. Using state space discretization, the Convex Hull algorithm is used for constructing a series of hyperplanes that composes a convex set. These planes represent a piecewise linear approximation for the expected cost-to-go functions. The mean operational costs for using the proposed methodology were compared with those from the deterministic dual dynamic problem in a case study, considering a single inflow scenario. This sensitivity analysis shows the convergence of both methods and is used to determine the minimum discretization level. Additionally, the applicability of the proposed methodology for two hydroplants in a cascade is demonstrated. With proper adaptations, this work can be extended to a complete hydrothermal system.

APA, Harvard, Vancouver, ISO, and other styles

37

Lopes, Marilia Barcelos Souza, Helio Bandeira Barros, Aloísio Freitas Chagas Júnior, Manoel Mota dos Santos, Niléia Cristina da Silva, and Rodrigo Ribeiro Fidelis. "Water-retaining polymer as a soil conditioner in cowpea under water stress." Comunicata Scientiae 9, no. 4 (January 4, 2019): 680–86. http://dx.doi.org/10.14295/cs.v9i4.2709.

Full text

Abstract:

Cowpea is no longer a family-oriented crop. Today it is cultivated by medium and large farmers in the North and Northeast, due to their adaptation to edaphoclimatic conditions. The objective of this work was to evaluate the efficiency of hydrogel utilization in the retention and availability of water for the development and production of Cowpea beans when subjected to water stress. The experiment was conducted in a randomized block design with four replications in a 5 x 2 factorial scheme, with five concentrations (0, 5, 10, 15 and 20 kg ha-1) and two sources of hydrogels (Hydroplan-EB HyC and Polim-Agri). The cowpea cultivar used was BRS Vinager. The following characteristics were evaluated: number of pods per plant; Number of grains per pod; Pod length: one hundred grain mass and grain yield. The data were submitted to analysis of variance, with the application of the test F. Regression analysis was performed with the help of the SISVAR computer system. The use of hydrogel was an alternative to reduce losses resulting from the action of water stress; the concentrations of hydrogels between 15 and 18 kg ha-1 resulted in higher number of pods per plant, number of grains per pod, the mass of one hundred grains and yields of grains.

APA, Harvard, Vancouver, ISO, and other styles

38

Mussi, Fabricio Baron, and Ubirata Tortato. "Cooperation, the Crowding Out Effect and the Role Of Incentives in the Case of Sustainable Hydroplant Project in Brazil." Management:Journal of Sustainable Business and Management Solutions in Emerging Economies 23, no. 2 (September 5, 2018): 71. http://dx.doi.org/10.7595/management.fon.2018.0011.

Full text

Abstract:

Research Question: This paper sought to present a proposal for the analysis of the cooperation between a hydroelectric power plant and the fisheries community. Motivation: The use of economic experiments on the sustainability theme has been employed by adapting public goods games to the different realities faced by the players. For this research, focused on the environmental preservation, preferring to contribute/not to contribute to their preservation consists of public goods dilemmas. This subject also constitutes a research opportunity, since in the preliminary literature review few studies addressed concomitantly the sustainability question related to hydroelectric plants and the cooperation between them and a group of local stakeholders. Idea: The core idea of this paper was to bring a proposal of association between the behavioural economics and crowding out theory to the analysis of actions envisaging sustainability, which demand the cooperation between a hydroelectric power plant and the fisheries community that make a living out of its reservoir. Data: The research was conducted assessing documents such as Itaipu´s annual sustainability reports and other documents between the plant and its stakeholders, in the environmental area, and in the form of contracts and cooperation agreements. Next, eight personal interviews were conducted with managers involved in the Sustainability Programme. Tools: With these information, the suggested public goods game was adapted from Fehr and Gachter (2000), and Sefton, Shupp and Walker (2007), and – for the present proposal of experiment – was named ‘reservoir game’, as the public goods in this case is Itaipu´s plant reservoir. Findings: This study can help in the acquisition of relevant information about the applicability and efficiency of punishment and reward mechanisms related to cooperation, either in support of future negotiations and agreements or in bargaining situations when groups present their demands. One can only hope to have also contributed to the improvement of management of contractual agreements between corporations and local stakeholders in projects targeting sustainability, to reduce any transaction costs, and minimize the possibilities for conflict and disagreement between partners. Contribution: This paper expands existing research related to cooperation between a power plant and its local stakeholders.

APA, Harvard, Vancouver, ISO, and other styles

39

Moitre, D., G. Garcia, and V. Sauchelli. "Bi-level Dynamic Optimization of Pumped-storage Hydroplants in a Competitive Power Pool. Part II: Case Studies." IEEE Latin America Transactions 3, no. 2 (April 2005): 178–84. http://dx.doi.org/10.1109/tla.2005.1642410.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Dongyang, Chen, Laith K. Abbas, Rui Xiaoting, Xiao Qing, and Pier Marzocca. "Dynamic modeling of sail mounted hydroplanes system-part II: Hydroelastic behavior and the impact of structural parameters and free-play on flutter." Ocean Engineering 131 (February 2017): 322–37. http://dx.doi.org/10.1016/j.oceaneng.2017.01.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Moitre, D., G. Garcia, and V. Sauchelli. "Bi-level Dynamic Optimization of Pumped-storage Hydroplants in a Competitive Power Pool. Part I: Model and Algorithm." IEEE Latin America Transactions 3, no. 2 (April 2005): 172–77. http://dx.doi.org/10.1109/tla.2005.1642409.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Dementyev, V. S., and N. N. Marfenin. "Influence of Temperature on the Growth, Coenosarc Pulsations, and Hydroplasm Movement in the Colonial Hydroid Dynamena pumila (L., 1758)." Biology Bulletin Reviews 9, no. 5 (September 2019): 432–52. http://dx.doi.org/10.1134/s2079086419050037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Dementyev, V. S., and N. N. Marfenin. "The Effect of Desalination on the Growth, Coenosarc Pulsations, and Hydroplasm Movement in the Colonial Hydroid Dynamena pumila (L., 1758)." Biology Bulletin Reviews 9, no. 3 (May 2019): 250–66. http://dx.doi.org/10.1134/s2079086419030022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Marfenin, N. N., and V. S. Dementyev. "Growth, Coenosarc Pulsations, and Hydroplasm Movement in the Colonial Hydroid Dynamena pumila (L., 1758) Placed in Flow-Through and Nonflow Cuvettes." Biology Bulletin Reviews 9, no. 1 (January 2019): 52–61. http://dx.doi.org/10.1134/s2079086419010055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Virliani, Putri, I. Ketut Suastika, and Wasis Dwi Aryawan. "ANALISA NUMERIK OLAH GERAK KAPAL SELAM DENGAN VARIASI BENTUK AFTER BODY." Jurnal Kelautan Nasional 12, no. 2 (March 20, 2018). http://dx.doi.org/10.15578/jkn.v12i2.6709.

Full text

Abstract:

Dalam pengoperasian kapal selam, olah gerak (maneuver) yang baik diperlukan pada saat melakukan serangan maupun menghindar dari serangan musuh. Salah satu komponen teknologi kapal selam yang perlu dikembangkan untuk mencapai maneuver yang baik adalah komponen hydroplane yang tersusun pada bagian after body kapal selam. Kapal selam itu dapat melakukan olah gerak vertikal mapun horizontal dengan menggunakan sistem kendali gerak (hydroplane). Ukuran geometri dan bentuk lambung dari kapal selam mempengaruhi karakteristik maneuver kapal selam. Untuk mencapai karakteristik maneuver yang diinginkan diperlukan perancangan ulang sistem kendali hydroplane. Penelitian ini diawali dengan membuat variasi bentuk after body kapal selam dan memprediksi lintasan gerak melingkar kapal selam. Perhitungan gaya hidrodinamika dan momen dilakukan secara numerik dengan menggunakan software Computational Fluid Dynamic (CFD-CFX). Kemudian dengan menggunakan software MATLAB , data-data hasil dari perhitungan CFD dapat dimasukkan ke dalam persamaan untuk diturunkan menjadi kurva yang menunjukkan lintasan gerak melingkar kapal selam.

APA, Harvard, Vancouver, ISO, and other styles

46

"Combinational effect of Hydroplane and Alkaline Agent on Remaining Particle Reduction for Silicon Wafer Polishing." ECS Meeting Abstracts, 2012. http://dx.doi.org/10.1149/ma2012-02/29/2508.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Morabito, M. G. "RE-ANALYSIS OF WILLIAM FROUDE’S STUDIES OF PLANING CRAFT." International Journal of Small Craft Technology Vol 157 Part B1 2015 157, B1 (June 1, 2015). http://dx.doi.org/10.3940/rina.ijsct.2015.b1.173.

Full text

Abstract:

One of William Froude’s lesser-known contributions to the field of Naval Architecture was in conducting some of the earliest studies on planing craft. Froude’s research was prompted by the idea of an inventor, Reverend C.M. Ramus who in 1872 proposed a high-speed ship concept using a flat-bottomed, stepped planing hull. Ramus later suggested the use of this hullform for rocket-propelled rams. Froude conducted towing tests on a model of the Ramus hull, as well as on a model three-point hydroplane concept of his own design. He also derived a solution for the optimum trim angle and minimum resistance of planing craft, using his recently developed formulae for estimating frictional resistance on flat plates and lift forces on submerged plates. Froude’s study demonstrated that Ramus’s ideas were not feasible at the time and the study received very little attention. It was not until the advent of lightweight internal combustion engines, thirty years later, that planing hulls became a reality. In the current paper, the Ramus tests are re-analysed and the data are put into a modern format. Comparisons are provided between the Ramus hull, Series 62 and a planing flat plate. The Ramus concept is shown to have had significantly more drag than would be expected from a planing hull. New model tests explore the effects of the rounded stern of the Ramus hull, and show that this feature significantly increases the resistance. Froude’s derivation of the minimum resistance of planing craft is discussed and contrasted with modern methods for prismatic planing hull resistance prediction.

APA, Harvard, Vancouver, ISO, and other styles

48

Kinsman, D. L., F. F. Mirza, S. Maheepala, L. E. Neumann, and E. H. Coultas. "Representing wastewater recycling in an integrated urban water modelling tool." Water Practice and Technology 7, no. 1 (March 1, 2012). http://dx.doi.org/10.2166/wpt.2012.002.

Full text

Abstract:

Treated wastewater is increasingly being considered as an alternative supply source in urban areas. Assessing its feasibility requires simulating its use using a suitable model. The feedback inherent in any wastewater recycling scenario creates challenges when determining how water from different types of sources like surface water, groundwater and treated wastewater should be allocated to meet demands. This is especially important when an optimisation algorithm determines the water allocation strategy. Releases from surface water sources can be reduced if supply from treated wastewater can be modelled. This allows for more efficient management of the water supply, leading to increased storage levels and fewer demand deficits. HydroPlanner is an integrated modelling tool developed in part to predict the effects of wastewater treatment and reuse on the supply network. It combines rainfall runoff models, storage models, demand models and wastewater recycling models together in the simulation of urban water systems. This paper demonstrates that HydroPlanner can model regulated river network systems equivalently to established platforms such as REALM. Additionally it is shown that HydroPlanner can specifically model wastewater treatment and the supply of treated water back to demands, though a further case study is planned to prove its validity for this purpose.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!