Log in

Relevant bibliographies by topics / Open water performance / Journal articles

To see the other types of publications on this topic, follow the link: Open water performance.

Journal articles on the topic 'Open water performance'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Open water performance.'

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

Cisar, C. J., C. M. Phillips, and W. P. Russum. "PHYSIOLOGICAL DETERMINANTS OF OPEN-WATER SWIMMING PERFORMANCE." Medicine and Science in Sports and Exercise 21, Supplement (1989): S104. http://dx.doi.org/10.1249/00005768-198904001-00619.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Pla, Robin, Yannis Raineteau, Xavier Barbier, and Anaël Aubry. "Physiological Key Determinants of Elite Open-Water Swimmers." Physiologia 4, no. 3 (2024): 305–16. http://dx.doi.org/10.3390/physiologia4030018.

Full text

Abstract:

This study describes the relationships between different physiological measurements and combinations of critical velocity and performance in elite open-water swimmers. A total of 15 international male open-water swimmers performed a 5 × 200 m front crawl incremental test to estimate maximal aerobic speed (MAS), maximal oxygen consumption (VO2max), the first lactate threshold (VLT1), the second lactate threshold (VLT2), the speed corresponding to 2 mmol/L (V2mmol/L) and to 4 mmol/L (V4mmol/L), and the lactate threshold (VDmax). A 10 km pool trial was also performed to assess swimming performanc

APA, Harvard, Vancouver, ISO, and other styles

3

Sellés-Pérez, Sergio, Roberto Cejuela, José Fernández-Sáez, and Héctor Arévalo-Chico. "Does Pool Performance of Elite Triathletes Predict Open-Water Performance?" Journal of Functional Morphology and Kinesiology 8, no. 4 (2023): 165. http://dx.doi.org/10.3390/jfmk8040165.

Full text

Abstract:

The capacity of laboratory tests to predict competition performance has been broadly researched across several endurance sports. The aim of the present study was to analyse how pool swimming performance can predict the result of the swimming segment in triathlon competitions and compare predictability differences based on competition level and distance. Eighteen male triathletes participated in the study. Three were ranked world-class, ten elite/international level, and five highly trained/national level. A total of sixty-one graded multi-stage swimming tests were conducted. Blood lactate was

APA, Harvard, Vancouver, ISO, and other styles

4

KAWAMURA, TAKAFUMI. "Reynolds Number Effect on Propeller Performance in Open Water." Journal of the Japan Society of Naval Architects and Ocean Engineers 10 (2009): 29–36. http://dx.doi.org/10.2534/jjasnaoe.10.29.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

KOBAYASHI, IKUMI, MAKOTO AYABE, DAICHI SUZUKI, HISASHI NAITO, and JUNICHIRO AOKI. "RELATIONSHIP BETWEEN OPEN-WATER SWIMMING PERFORMANCE AND AEROBIC CAPACITY." Japanese Journal of Physical Fitness and Sports Medicine 57, no. 4 (2008): 443–52. http://dx.doi.org/10.7600/jspfsm.57.443.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Martinez, Vanessa, Maria Sanz-de la Garza, Gonzalo Grazioli, et al. "Cardiac performance after an endurance open water swimming race." European Journal of Applied Physiology 119, no. 4 (2019): 961–70. http://dx.doi.org/10.1007/s00421-019-04085-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Шапков, Е. В., Н. В. Тряскин, and А. В. Андрюшин. "Analysis of auger propulsor performance in water." MORSKIE INTELLEKTUAL`NYE TEHNOLOGII)</msg> 1, no. 1(63) (2024): 59–65. http://dx.doi.org/10.37220/mit.2024.63.1.006.

Full text

Abstract:

Интенсивная промышленная разработка углеводородов на Арктическом шельфе России в регионах с разнообразной природно-климатической обстановкой обуславливает создание амфибийных транспортных средств. Последние могут быть разработаны на базе роторно-винтовых движителей. В статье представлен анализ работы роторно-винтового движителя в воде. На основании анализа предыдущих проектов транспортных средств с РВД сформирован прототип движителя для исследования его гидродинамических характеристик. В пакете вычислительной гидродинамики с открытым исходным кодом OpenFOAM сформирована расчетная CFD-модель РВ

APA, Harvard, Vancouver, ISO, and other styles

8

Wei, Fan, Shi Jie Zhang, and Yun Han Xiao. "Performance and Exergy Analysis of Open Absorption Heat Pump." Advanced Materials Research 953-954 (June 2014): 667–72. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.667.

Full text

Abstract:

An open absorption heat pump(OAHP) in second type was built in this paper in order to recycle the heat and water from the flue gas. the coefficient of performance(COP) and the exergy efficiency were analyzed with the method of process simulation. Results showed the COP is 0.64, and latent heat recovery ratio is 19.6%. The temperature and humidity of flue gas, the temperature and flowrate of cooling water would influence on the COP. The increase of these parameters would lead to COP increase. The exergy efficiency of the system was 19.2%. The absorber, the generator and the condenser produce mo

APA, Harvard, Vancouver, ISO, and other styles

9

Grlj, Carlo Giorgio, Nastia Degiuli, Andrea Farkas, and Ivana Martić. "Numerical Study of Scale Effects on Open Water Propeller Performance." Journal of Marine Science and Engineering 10, no. 8 (2022): 1132. http://dx.doi.org/10.3390/jmse10081132.

Full text

Abstract:

The present study aims to investigate the scale effects of the open water propeller performance using computational fluid dynamics (CFD). The results are presented for the propeller which was previously 3D scanned and digitized. The results obtained using two turbulence models within the numerical simulations are compared. The verification study is conducted to assess the numerical uncertainty and thus obtain the optimal grid size for the numerical simulations. A transition model is used at the model scale to account for the partially laminar flow. The propeller is then scaled, and numerical s

APA, Harvard, Vancouver, ISO, and other styles

10

Fitriadhy, Ahmad, N. Amira Adam, and CJ Quah. "COMPUTATIONAL PREDICTION OF A PROPELLER PERFORMANCE IN OPEN WATER CONDITION." SINERGI 24, no. 2 (2020): 163. http://dx.doi.org/10.22441/sinergi.2020.2.010.

Full text

Abstract:

In presence of hydrodynamics phenomena occur surrounding propeller evidently affects on accuracy’s prediction of thrust, torque and its efficiency. To achieve the objective, a Computational Fluid Dynamics (CFD) simulations approach is then proposed to obtain a reliable prediction of the thrust (KT), torque (KQ) and efficiency (η) coefficients in open water condition. The effect of various blade numbers associated with constant propeller revolution (RPM=1320) and pitch ratio (P/D=1.0); are performed within the range of advance ratio from 0.1J1.0. The results revealed that the increase of blade

APA, Harvard, Vancouver, ISO, and other styles

11

Bal, S. "A practical technique for improvement of open water propeller performance." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 225, no. 4 (2011): 375–86. http://dx.doi.org/10.1177/1475090211413957.

Full text

Abstract:

A practical technique for the improvement of open water propeller performance has been described by using a vortex lattice lifting line method together with a lifting surface method. First, the optimum circulation distribution, giving the maximum thrust–torque ratio, has been computed along the radius of the propeller for given thrust and chord lengths, by adopting a vortex lattice solution to the lifting line problem. Then, by using the lifting surface method, the blade sectional properties such as pitch-to-diameter ratio and camber ratio, have been calculated for obtaining the desired circul

APA, Harvard, Vancouver, ISO, and other styles

12

Baldassarre, Roberto, Marco Bonifazi, Paola Zamparo, and Maria Francesca Piacentini. "Characteristics and Challenges of Open-Water Swimming Performance: A Review." International Journal of Sports Physiology and Performance 12, no. 10 (2017): 1275–84. http://dx.doi.org/10.1123/ijspp.2017-0230.

Full text

Abstract:

Context: Although the popularity of open-water swimming (OWS) events has significantly increased in the last decades, specific studies regarding performance of elite or age-group athletes in these events are scarce. Purpose: To analyze the existing literature on OWS. Methods: Relevant literature was located via computer-generated citations. During August 2016, online computer searches on PubMed and Scopus databases were conducted to locate published research. Results: The number of participants in ultraendurance swimming events has substantially increased in the last 10 y. In elite athletes th

APA, Harvard, Vancouver, ISO, and other styles

13

Leone, S., C. Testa, L. Greco, and F. Salvatore. "Computational analysis of self-pitching propellers performance in open water." Ocean Engineering 64 (May 2013): 122–34. http://dx.doi.org/10.1016/j.oceaneng.2013.02.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Chao, Sheng Huang, Xin Chang, and Miao He. "Applying periodic boundary conditions to predict open water propeller performance." Journal of Marine Science and Application 9, no. 3 (2010): 262–67. http://dx.doi.org/10.1007/s11804-010-1005-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Adam, N. Amira, A. Fitriadhy, C. J. Quah, and T. Haryanto. "Computational analysis on B-series propeller performance in open water." Marine Systems & Ocean Technology 15, no. 4 (2020): 299–307. http://dx.doi.org/10.1007/s40868-020-00087-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Gandhidasan, P., and A. A. Al-Farayedhi. "Thermal Performance Analysis of a Partly Closed-Open Solar Regenerator." Journal of Solar Energy Engineering 117, no. 2 (1995): 151–53. http://dx.doi.org/10.1115/1.2870852.

Full text

Abstract:

This paper presents a modified open regeneration system suitable for humid climates. The upper part of the open regenerator is covered with a single glazing where the desiccant can be heated up without evaporation of water and the evaporation starts at the beginning of the open surface. For this type of regenerator, performance analysis has been made to predict the mass of water evaporated from the weak liquid desiccant to the atmosphere. The regeneration efficiency is obtained for various ratios of glaze surface area to the open surface area for different operating parameters.

APA, Harvard, Vancouver, ISO, and other styles

17

Wakabayashi, Tomoki, and Tokihiro Katsui. "Propeller Open-Water Test Method for Hybrid Contra Rotating Propeller." Journal of Marine Science and Engineering 13, no. 5 (2025): 858. https://doi.org/10.3390/jmse13050858.

Full text

Abstract:

The Hybrid Contra Rotating Propeller is a developing propulsion system that combines a conventional single-shaft propeller with a POD propeller to achieve high energy-saving performance through a Contra Rotating Propeller. In this paper, a new towing tank test method for the Hybrid Contra Rotating Propeller was suggested. By conducting seven patterns of propeller open-water tests and measuring the individual propeller performance and the interaction between the propeller and the POD, the propeller’s mutual interaction can be obtained. Towing tank tests for a study ship were conducted, and the

APA, Harvard, Vancouver, ISO, and other styles

18

Lopes, Frederico Azevedo, and Andrea Coelho Leite. "Water quality for triathlon and open water swimming competitions in Brazilian freshwaters." Limnological Review 21, no. 4 (2021): 169–79. http://dx.doi.org/10.2478/limre-2021-0016.

Full text

Abstract:

Abstract In high-performance competitive activities, there can be intense and prolonged exposure to water during swimming components of the competition. Therefore, water quality assessments with reference to standards are desirable to ensure athletes’ health. We evaluated whether the official criteria established for primary contact recreation in Brazilian freshwaters (CONAMA Directive 274/2000), and an integrated index of bathing conditions in Brazil (ICB), are consistent with the water quality standards stipulated by the International Triathlon Union (ITU). The water quality of Lake of Ingle

APA, Harvard, Vancouver, ISO, and other styles

19

Shaw, Gregory, Anu Koivisto, David Gerrard, and Louise M. Burke. "Nutrition Considerations for Open-Water Swimming." International Journal of Sport Nutrition and Exercise Metabolism 24, no. 4 (2014): 373–81. http://dx.doi.org/10.1123/ijsnem.2014-0018.

Full text

Abstract:

Open-water swimming (OWS) is a rapidly developing discipline. Events of 5–25 km are featured at FINA World Championships, and the international circuit includes races of 5–88 km. The Olympic OWS event, introduced in 2008, is contested over 10 km. Differing venues present changing environmental conditions, including water and ambient temperatures, humidity, solar radiation, and unpredictable tides. Furthermore, the duration of most OWS events (1–6 hr) creates unique physiological challenges to thermoregulation, hydration status, and muscle fuel stores. Current nutrition recommendations for open

APA, Harvard, Vancouver, ISO, and other styles

20

Xiao, Bing, Xiao Wang, Ai Guo Shi, and Ming Wu. "Four Quadrants Numerical Prediction for Hydrodynamic Performance of Open-Water Propeller." Advanced Materials Research 143-144 (October 2010): 1143–47. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.1143.

Full text

Abstract:

In order to obtain the four quadrants hydrodynamic performance of open water propeller by means of CFD, a mathematic model of three dimensional coordinates points was established and programmed using Matlab based on the basic parameters of propeller. A smooth model propeller was made by importing these points into front end software. Then taking AU model for example, numerical simulations of propeller turning ahead while going ahead, turning ahead while going astern, turning astern while going ahead and turning astern while going astern were carried out. At the same time, the thrust and torque

APA, Harvard, Vancouver, ISO, and other styles

21

Chavan, Sachin Amrut, Anirban Bhattacharyya, and Om Prakash Sha. "Open water performance of B-Series marine propellers in tandem configurations." Ocean Engineering 242 (December 2021): 110158. http://dx.doi.org/10.1016/j.oceaneng.2021.110158.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Berchiche, Nabila, and Carl-Erik Janson. "Grid Influence on the Propeller Open-Water Performance and Flow Field." Ship Technology Research 55, no. 2 (2008): 87–96. http://dx.doi.org/10.1179/str.2008.55.2.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Reid, Gregor K., Sébastien Lefebvre, Ramón Filgueira, et al. "Performance measures and models for open‐water integrated multi‐trophic aquaculture." Reviews in Aquaculture 12, no. 1 (2018): 47–75. http://dx.doi.org/10.1111/raq.12304.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Yu, Long, Martin Greve, Markus Druckenbrod, and Moustafa Abdel-Maksoud. "Numerical analysis of ducted propeller performance under open water test condition." Journal of Marine Science and Technology 18, no. 3 (2013): 381–94. http://dx.doi.org/10.1007/s00773-013-0215-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Gu, Jincui, Peng Xiao, Lei Zhang, et al. "Construction of superhydrophilic and under-water superoleophobic carbon-based membranes for water purification." RSC Advances 6, no. 77 (2016): 73399–403. http://dx.doi.org/10.1039/c6ra14310e.

Full text

Abstract:

A novel hybrid Ag/PAA-CNTs membrane with oil/water separation performance and antibacterial functions is presented, which may open a new window to achieve multifunctional materials for water treatment.

APA, Harvard, Vancouver, ISO, and other styles

26

Mukherjee, Maitreyee, and Olivia Jensen. "Open Water: Impacts of retail competition on service performance and water-use efficiency in england." Utilities Policy 79 (December 2022): 101429. http://dx.doi.org/10.1016/j.jup.2022.101429.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Alvarez, Marta, and Javier Rodríguez. "Water-related mutual funds: investment performance and social role." Social Responsibility Journal 11, no. 3 (2015): 502–12. http://dx.doi.org/10.1108/srj-08-2013-0104.

Full text

Abstract:

Purpose – The purpose of this paper is to examine the performance and diversification value of water-related funds. As pollution, climate change and accelerated population growth threaten water resources worldwide, such resources have become a sought-after asset. For most investors, it is impractical to physically hold water as part of a portfolio; therefore, an open question is how to better gain exposure to this asset. The authors propose a look at water-related mutual funds, an issue not found addressed in the literature. In addition to the investment potential of these funds, investors mig

APA, Harvard, Vancouver, ISO, and other styles

28

Ma, Dao Xun, Yan Liu, and Yong Lai. "The Influence of Pore Structure on the Waterproof Performance of Polymer Modified Mortar." Applied Mechanics and Materials 584-586 (July 2014): 1130–34. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1130.

Full text

Abstract:

This paper tested the pore structure, capillary water absorption and impermeability of cement mortars modified with three polymers respectively, establishing the relationship between the pore structure and waterproof performance. The results show that with the polymer dosage growing, especially as the polymer/cement ratio (mp/mc) increases from 0% to 5%, the reduction in the capillary water absorption and the penetration depth of water into mortar is significant. In themp/mcrange of 0%~20% the open porosity presents a gradual decrease trend. The capillary water absorption and the penetration d

APA, Harvard, Vancouver, ISO, and other styles

29

Lai, Hai Qing, Guo Zhi Bao, Wei Liu, and Ning Chen. "The Ducted Propeller Design and Hydrodynamic Performance Analysis." Applied Mechanics and Materials 543-547 (March 2014): 28–32. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.28.

Full text

Abstract:

This paper aim at the integrated rudder propeller power transmission system which is specific to the towing and tugging ships rudder propeller system, presented an analyzing method with ducted propeller design. Analyzed the thrusttorqueefficiency and total pressure distribution law of blade in the condition of open water work of the propeller by means of finite element method. The numerical results and the flow details are concluded and compared with published experimental data, .Results displayed in good agreement with theoretical analysis results. Initially formed a whole process of design t

APA, Harvard, Vancouver, ISO, and other styles

30

Ye, Ziyi, Shaojuan Su, Liangtao Zhou, Zhijie Liu, and Xiaodong Luo. "Numerical study of water depth effects on the hydrodynamic performance of a shallow-water seismic survey ship’s Z-drive ducted propeller." Brodogradnja 76, no. 4 (2025): 1–20. https://doi.org/10.21278/brod76401.

Full text

Abstract:

To meet the propulsion requirements of a novel shallow-water seismic survey ship, a Ka+19A Z-drive ducted propeller was designed based on ship model resistance tests using the propeller chart method. Numerical simulations of open water tests were conducted using Reynolds-Averaged Navier-Stokes (RANS) and transient Rigid Body Motion (RBM) methods, obtaining the open water performance curves. Compared to the original propeller test values, the results verified that the designed propeller could provide effective thrust for the shallow-water seismic survey ship, ensuring its smooth navigation. By

APA, Harvard, Vancouver, ISO, and other styles

31

Tian, Jin Liang, and Jian Gang Niu. "The Performance Study of the Open Channel Concrete in Cold Area." Advanced Materials Research 535-537 (June 2012): 1661–64. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1661.

Full text

Abstract:

The antifreeze & seepage of the open channel projects is the most significant part in the rural water-reducing irrigation system. The prerequisite of the concrete durability is to ensure the concrete strength unchanged, and the concrete strength directly affects the durability. Using the Orthogonal Experimental Design (OED) Method analyzed that the affection on the concrete strength by replacing the ordinary silicate cement with the compound cement,and adding the Polypropylene Fiber (PF), Fly Ash (FA), Water-reducing Agent (WA) into the concrete. It is seen that the effect on the concrete

APA, Harvard, Vancouver, ISO, and other styles

32

Song, Yaowei, Sukol Ariyasajsiskul, and Chanchai Siriphan. "The Effects of Altitude Training on the Performance of Open Water Swimmers." International Journal of Sociologies and Anthropologies Science Reviews 4, no. 1 (2024): 453–64. http://dx.doi.org/10.60027/ijsasr.2024.3733.

Full text

Abstract:

Background and Aim: Training in a low-pressure, low-oxygen environment at the plateau is a difficult challenge for athletes who live on the plains all year round. Athletes need to overcome the stimulation of hypoxia to complete training. This paper aims to explore the influence of altitude training on the special quality, technique, and tactics of open-water swimmers. Methods: The method of literature, experiment, and mathematical statistics is adopted, and the experimental method is the main method. (1) The experimental subjects were male athletes with many years of experience in open-water s

APA, Harvard, Vancouver, ISO, and other styles

33

Lee, Kun-Hwa, Hyun-Gil Jang, Chang-Sup Lee, In-Sik Nho, Sang-Gab Lee, and Beom-Soo Hyun. "Effect of Manufacturing Accuracy of Flexible Propeller on the Open Water Performance." Journal of the Society of Naval Architects of Korea 50, no. 5 (2013): 349–54. http://dx.doi.org/10.3744/snak.2013.50.5.349.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

GAO, Fudong. "Numerical Analysis and Validation of Propeller Open-water Performance Based on CFD." Journal of Mechanical Engineering 46, no. 08 (2010): 133. http://dx.doi.org/10.3901/jme.2010.08.133.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Islam, Mohammed, and Fatima Jahra. "Improving accuracy and efficiency of CFD predictions of propeller open water performance." Journal of Naval Architecture and Marine Engineering 16, no. 1 (2019): 1–20. http://dx.doi.org/10.3329/jname.v16i1.34756.

Full text

Abstract:

This research proposes mesh and domain optimization strategies for a popular Computational Fluid Dynamics (CFD) technique to estimate the open water propulsive characteristics of fixed pitch propellers accurately and time-efficiently based on examining the effect of various mesh and computation domain parameters. It used a Reynolds-Averaged Navier-Stokes (RANS) solver to predict the propulsive performance of a fixed pitch propeller with varied meshing, simulation domain and setup parameters. The optimized mesh and domain size parameters were selected using Design of Experiments (DoE) methods e

APA, Harvard, Vancouver, ISO, and other styles

36

Abdelhady, Amr. "Radiological performance of hot water layer system in open pool type reactor." Alexandria Engineering Journal 52, no. 2 (2013): 159–62. http://dx.doi.org/10.1016/j.aej.2012.12.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Shaw, Gregory, and Iñigo Mujika. "Anthropometric Profiles of Elite Open-Water Swimmers." International Journal of Sports Physiology and Performance 13, no. 1 (2018): 115–18. http://dx.doi.org/10.1123/ijspp.2016-0741.

Full text

Abstract:

Reports detailing the physiques of open-water (OW) swimmers are limited. Data from anthropometric screening around competition provides a unique opportunity to describe the current physical attributes of elite OW swimmers peaking for international competition. Anthropometric screening was undertaken on a group of Australian and French OW swimmers as part of performance monitoring within 2 wk of the 2015 FINA World Championships. Height, mass, and sum of 7 skinfolds were measured using ISAK standardized measurement techniques by 2 trained anthropometrists. Data were collated and compared with p

APA, Harvard, Vancouver, ISO, and other styles

38

D.T., Santosh, Mahesh Hadole, and Sagar Maitra. "Enhancing Capsicum Cultivation under Polyhouse, Shadenet House and Open Field Conditions with Drip Fertigation." International Journal of Experimental Research and Review 43 (September 30, 2024): 190–200. http://dx.doi.org/10.52756/ijerr.2024.v43spl.014.

Full text

Abstract:

Capsicum cultivation is a highly challenging task in open field conditions because of the extreme climatic conditions and poor input delivery system. Hence, the protected cultivation of capsicum is catching up. The present study evaluates the comparative performance of polyhouse, shadenet house and opens field conditions on the biometric, yield, fruit quality and economics of capsicum using drip and fertigation system. The study also determines the optimum dose of irrigation water and fertilizer application using drip irrigation methods under different protected cultivation structures. The stu

APA, Harvard, Vancouver, ISO, and other styles

39

Lee, Jin-Woo, Yun-Hae Kim, Young-Gwan Gang, and Sang-Hoon Lee. "Evaluation of Performance in Semi-Open Type Impeller by Duplex Stainless Material for Ballast Water Centrifugal Pump." Journal of Ocean Engineering and Technology 28, no. 4 (2014): 345–50. http://dx.doi.org/10.5574/ksoe.2014.28.4.345.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Bouregba, Fatima, Mustapha Belkadi, Mohammed Aounallah, and Lahouari Adjlout. "Effect of the blade number on the marine propeller performance." EPJ Web of Conferences 213 (2019): 02007. http://dx.doi.org/10.1051/epjconf/201921302007.

Full text

Abstract:

This paper deals with numerical simulation of stationary flow around a marine propeller. The aim is to reproduce the hydrodynamic turbulent flow around the Wageningen B serie propellers in open water using the ANSYS FLUENT code and the RANS approach. The computational domain consists of an inter-blade channel with periodic boundaries, meshed with tetrahedral cells. The turbulence is modeled with the k-ω. The obtained results provide good agreement with the available experimental data and show that the blades number affects considerably the marine propellers performances. It is interesting to n

APA, Harvard, Vancouver, ISO, and other styles

41

Zhou, Yan, Jinwei Dong, Xiangming Xiao, et al. "Open Surface Water Mapping Algorithms: A Comparison of Water-Related Spectral Indices and Sensors." Water 9, no. 4 (2017): 256. http://dx.doi.org/10.3390/w9040256.

Full text

Abstract:

Open surface water bodies play an important role in agricultural and industrial production, and are susceptible to climate change and human activities. Remote sensing data has been increasingly used to map open surface water bodies at local, regional, and global scales. In addition to image statistics-based supervised and unsupervised classifiers, spectral index- and threshold-based approaches have also been widely used. Many water indices have been proposed to identify surface water bodies; however, the differences in performances of these water indices as well as different sensors on water b

APA, Harvard, Vancouver, ISO, and other styles

42

Knechtle, Beat, Athanasios A. Dalamitros, Tiago M. Barbosa, Caio Victor Sousa, Thomas Rosemann, and Pantelis Theo Nikolaidis. "Sex Differences in Swimming Disciplines—Can Women Outperform Men in Swimming?" International Journal of Environmental Research and Public Health 17, no. 10 (2020): 3651. http://dx.doi.org/10.3390/ijerph17103651.

Full text

Abstract:

In recent years, the interest of female dominance in long-distance swimming has grown where several newspaper articles have been published speculating about female performance and dominance—especially in open-water ultra-distance swimming. The aim of this narrative review is to review the scientific literature regarding the difference between the sexes for all swimming strokes (i.e., butterfly, backstroke, breaststroke, freestyle and individual medley), different distances (i.e., from sprint to ultra-distances), extreme conditions (i.e., cold water), different ages and swimming integrated in m

APA, Harvard, Vancouver, ISO, and other styles

43

Wei, Fan, Shi Jie Zhang, and Yun Han Xiao. "OAHT System Built and Off-Design Performance Analysis." Applied Mechanics and Materials 291-294 (February 2013): 1640–47. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1640.

Full text

Abstract:

Open cycle absorption heat transformer (OAHT) is built and the off-design performance is discussed with simulation method. Results show the COP changes little when parameters various. The COP increases and water recovery ratio decreases as the temperature and flow rate of flue gas or of cooling water increase. With the same heat flow ejecting, the system has more stable performance as the humidity of flue gas changes.

APA, Harvard, Vancouver, ISO, and other styles

44

Franz von Bock und Polach, Rüdiger U., Sören Ehlers, and Stein Ove Erikstad. "A Decision-based Design Approach for Ships Operating in Open Water and Ice." Journal of Ship Production and Design 31, no. 04 (2015): 209–19. http://dx.doi.org/10.5957/jspd.2015.31.4.209.

Full text

Abstract:

Designing ships for open water and ice requires a suitable design method to account for the distinct challenges in open water and ice. Ships with multi environment capabilities are of high complexity as a result of design-coupling, which is illustrated by design matrices. In this context, this article presents a method that includes a ship performance evaluation method based on the Ship Merit Factor (SMF). The method combines the SMF with a route specific ship-dependent productivity and allows to compare the technoeconomic performance of ships operating in open water and ice. Consequently, the

APA, Harvard, Vancouver, ISO, and other styles

45

Knechtle, Beat, Tiago M. Barbosa, and Pantelis Theo Nikolaidis. "The age-related changes and sex difference in master swimming performance." Movement & Sport Sciences - Science & Motricité, no. 104 (2019): 29–36. http://dx.doi.org/10.1051/sm/2019020.

Full text

Abstract:

Master athletes have been widely used to examine the age-induced decline of human performance. However, so far very limited reviews are available consolidating the age-related differences in master swimming performance. The aim of the present review was to summarize existing knowledge about the age-related changes in three modalities of swimming performance (i.e., pool-swimming, open-water swimming and swim split in triathlons of different distances). In addition, the paradigm of freestyle swimming records from 50 to 1500 m was used to examine age-related differences and sex difference in perf

APA, Harvard, Vancouver, ISO, and other styles

46

Zhang, Xiaoxuan. "Analysis of Hidden Danger in Open Water Swimming Competition." Advances in Economics, Management and Political Sciences 26, no. 1 (2023): 139–44. http://dx.doi.org/10.54254/2754-1169/26/20230560.

Full text

Abstract:

Open-water swimming is an exercise that can enhance the athlete's physical fitness. Even though different swimmers enjoy swimming in open water competitions, there are still safety consequences with this competition, and people must plan this hidden danger before the event. Athletes swim in open-water swimming competitions in lakes, rivers, and oceans. The difference between open-water swimming and traditional swimming in swimming causes much more uncertainty. This essay will take place on all the potential threats in an open-water swimming event. The essay will be analyzing in different aspec

APA, Harvard, Vancouver, ISO, and other styles

47

Yen, Ben Chie, and Juan A. González-Castro. "Open-Channel Capacity Determination Using Hydraulic Performance Graph." Journal of Hydraulic Engineering 126, no. 2 (2000): 112–22. http://dx.doi.org/10.1061/(asce)0733-9429(2000)126:2(112).

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Ghoniem, A. M., A. S. Abo Elazm, M. I. Benaya, and S. A. Mohamed. "Effect of salinity on marine propeller performance." Journal of Physics: Conference Series 2616, no. 1 (2023): 012016. http://dx.doi.org/10.1088/1742-6596/2616/1/012016.

Full text

Abstract:

Abstract In order to analyse problems with fluid flow, computational fluid dynamics is one of the most helpful tools available. This paper presents a numerical simulation of the effect of salinity on a marine propeller of an aircraft carrier in advance of the propeller open water (POW) test. A five-bladed fixed-pitch propeller is analysed using an unstructured mesh in the flow domain (PPTC - VP1304). Solving the RANSE equations describing the flow with a streamlined solver To begin, the accuracy of the numerical model was checked by comparing the results to previously published experimental da

APA, Harvard, Vancouver, ISO, and other styles

49

Hong, Sothea, Pierre-Olivier Malaterre, Gilles Belaud, and Cyril Dejean. "Optimization of water distribution for open-channel irrigation networks." Journal of Hydroinformatics 16, no. 2 (2013): 341–53. http://dx.doi.org/10.2166/hydro.2013.194.

Full text

Abstract:

Water distribution for open-channel irrigation networks is more and more complex due to increasing constraints on water resources and changing demand patterns, whereas the performance of such systems is expected to increase. In this regard, an optimization approach is developed in order to schedule a fair scenario of water distribution among different users, where water demand is formulated in term of start time, duration and flow rate. This study investigates how to optimize the water distribution over a finite scheduling horizon while respecting the constraints linked to the system. The opti

APA, Harvard, Vancouver, ISO, and other styles

50

Jawad, Sarah Abbas, Farhan Lafta Rashid, and Zeina Ali Abdul Ridha. "Thermal Performance of Spiral Flat Plate Solar Water Collector." International Journal of Heat and Technology 40, no. 1 (2022): 183–92. http://dx.doi.org/10.18280/ijht.400122.

Full text

Abstract:

Water stream flow is the major factor that affects the performance of a spiral solar water collector, it can be maximize the collector performance by decreasing the water stream flow velocity. The water stream flow was in two spiral tube arrangements of length 15 m, diameter 0.012 m, and number of coils (11). The inner surface of the solar collector was coated with matte black paint with a mixture of nanomaterial (thermal dye with 5% TiN). The experimental rig placed in Babylon - Iraq, at longitude (44.4 E) and latitude (32.4 N) in the best experimental conditions for the province during the m

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!