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Showing 20 of 3,721 academic articles

Correction of Postoperative Anemia in Patients undergoing Mitral Valve Replacement through Blood Saving Technology

B. M. Gumeniuk • Український журнал серцево-судинної хірургії (2020)

The aim. To investigate anemia of chronic disease (ACD) in patients with mitral valvular disease, to provide preoperative correction in these patients and to determine the level of postoperative anemia after mitral valve replacement (MVR) t...

DOAJ Open Access (DOAJ) DOI: 10.30702/ujcvs/20.4009/038055-060/5.16

Assessment of hazard recognition performance of thermal power plant workers: A case study of a combined cycle power plant

Romeo Danquah, Gidphil Mensah, Winfred Senyo Agbagah, Francis Davis • Cogent Engineering (2023)

Hazard recognition is a vital skill every thermal power plant worker needs to possess to enhance workplace accident prevention. Facilities and materials used in thermal power plants expose the workers to significant hazards. While some prio...

DOAJ Open Access (DOAJ) DOI: 10.1080/23311916.2023.2252621

The Impact of Covid 19 on Seaweed Smallholder Farmers in Nusa Tenggara Barat, Indonesia

Hafiizh Prasetia, Firman Zulpikar, Jeverson Renyaan, Muhammad Safaat et al. • Omni-Akuatika (2022)

The COVID-19 pandemic has impacted the seaweed industry and business. The export-import trade is the most severely impacted sector, mainly the raw material export of seaweed. The purpose of this study was to determine how smallholder farmer...

DOAJ Open Access (DOAJ) DOI: 10.20884/1.oa.2022.18.S1.986

A hybrid technique to enhance the rainfall-runoff prediction of physical and data-driven model: a case study of Upper Narmada River Sub-basin, India

Sachin Kumar, Mahendra Kumar Choudhary, T. Thomas • Scientific Reports (2024)

Abstract Accurate streamflow prediction is crucial for effective water resource management and planning. This study aims to enhance streamflow simulation accuracy in the data-scarce Upper Narmada River Basin (UNB) by proposing a novel hybri...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-024-77655-5

Blockchain-Enabled Maritime-Agricultural Integration: Professional Perspectives on Sustainable Supply Chain Transformation

Barasa Larsen, Cahyadi Tri, Simanjuntak Marihot, Sibarani Mauritz H. et al. • BIO Web of Conferences (2025)

This investigation explores maritime professionals' perspectives on blockchain-enabled agricultural supply chain integration for island community sustainability. Through qualitative analysis of ten experienced maritime graduates with decade...

DOAJ Open Access (DOAJ) DOI: 10.1051/bioconf/202519901006

Experimental and Modelling Research on the Effect of Prior Ferrite on Bainitic Transformation in Medium-Carbon Bainitic Steel

Xinpan Yu, Wei Liu, Kang He, Tengfei Wang et al. • Crystals (2024)

In this study, we investigate the impact of prior ferrite on the bainite transformation kinetics and microstructure of medium-carbon steel interrupted by an intercritical annealing (IAA) process. It was found that the incubation time and co...

DOAJ Open Access (DOAJ) DOI: 10.3390/cryst14060487

Research and practice of key technologies for landslide dam development and utilization—A case in Hongshiyan landslide Dam Water Conservancy Project

Zongliang Zhang, Xueming Wu, Enshang Xiao, Ning He et al. • River (2023)

Abstract Based on the emergency rescue, the subsequent disposal, and the development and utilization projects of the Hongshiyan Landside Dam in Ludian, Yunnan, China, research has been conducted on key technical issues facing the developmen...

DOAJ Open Access (DOAJ) DOI: 10.1002/rvr2.51

Impact of Super Typhoon ‘Hinnamnor’ on Density of Kelp Forest and Associated Benthic Communities in Jeju Island, Republic of Korea

Kyeong-Tae Lee, Garance Perrois, Hyun-Sung Yang, Taeho Kim et al. • Journal of Marine Science and Engineering (2023)

This study was carried out to determine the levels of resistance and resilience of kelp forests to large-scale physical disturbances. Our study site, Seongsan, Jeju Island, was impacted by super typhoon ‘Hinnamnor’. Before the typhoon, Seon...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse11051035

Research on Two-Phase Flow and Wear of Inlet Pipe Induced by Fluid Prewhirl in a Centrifugal Pump

Jilong Chen, Xing Chen, Wenjin Li, Yuhai Zheng et al. • Journal of Marine Science and Engineering (2024)

In deep-sea mining hydraulic lifting systems, centrifugal pumps are very important as power units. In the process of transportation, the fluid prewhirl phenomenon in the impeller inlet will lead to changes in the state of motion of the part...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse12060950

Decision Support System for Technology Deployment Considering Emergent Behaviors in the Maritime Industry

Kazuo Hiekata, Zhinan Zhao • Journal of Marine Science and Engineering (2022)

The maritime industry is trying to utilize new technology for enhancing its competitiveness to overcome today’s severe economic situation, and some interact effects, or potentially emergent effects, will emerge during the introduction of th...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse10020263

Influence of Station-to-Station Line Orientation on Sea Current Speed Observation Using Coastal Acoustic Tomography

Wan-Gu Kim, Byoung-Nam Kim, Yohan Chweh • Journal of Marine Science and Engineering (2026)

The influence of station-to-station line orientation on sea current speed observations using Coastal Acoustic Tomography (CAT) was quantitatively investigated. For this purpose, we conducted CAT experiments at five stations in Yeosu Bay, So...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse14060529

Continuous Field Determination and Ecological Risk Assessment of Pb in the Yellow Sea of China

Zhiwei Zhang, Dawei Pan, Yan Liang, Md. Abdur Rahman et al. • Journal of Marine Science and Engineering (2024)

Field determination and ecological risk assessment of dissolved lead (Pb) were performed at two Yellow Sea sites in China using a continuous automated electrochemical system (CAEDS). This CAEDS instrument includes an automatic triple filter...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse12081452

Estimation and Characteristics of Low-Frequency Ambient Sea Noise from Far-Field Ships

Xuegang Li, Yang Shi, Cheng Zhao, Guocang Sun et al. • Journal of Marine Science and Engineering (2024)

To study the rapid estimation method and characteristics of low-frequency ambient sea noise generated by far-field ships, firstly, based on the reciprocity principle of sound fields and the fact that the number of noise sources significantl...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse12122194

Two new species of deep-sea Red Corals (Coralliidae, Genus Hemicorallium Gray, 1867) from the western Indian Ocean

Xuying Hu, Qian Zhang, Meiling Ge, Xinlong Li et al. • Zoosystematics and Evolution (2025)

Deep-sea corals are critical to global exploration of deep-sea biodiversity, but research on them in the Indian Ocean is very limited. In this study, we report the first discovery of two new species of red corals at a depth of 1697 m in the...

DOAJ Open Access (DOAJ) DOI: 10.3897/zse.101.139350