Results 81 to 90 of about 1,083,101 (288)

Self-Positioning Smart Buoys, The \u27Un-Buoy\u27 Solution: Logistic Considerations Using Autonomous Surface Craft Technology and Improved Communications Infrastructure [PDF]

, 2006
Moored buoys have long served national interests, but incur high development, construction, installation, and maintenance costs. Buoys which drift off-location can pose hazards to mariners, and in coastal waters may cause environmental damage.
Ballou, Phil, Curcio, Joseph A, Fall, Kevin, Kitts, Chris, Maffei, Andrew, McGillivary, Philip A, Schwehr, Kurt, Twiggs, Bob   +7 more
core   +2 more sources

Complex Use of the Main Marine Diesel Engine High- and Low-Temperature Waste Heat in the Organic Rankine Cycle

Journal of Marine Science and Engineering
The decarbonization problem of maritime transport and new restrictions on CO2 emissions (MARPOL Annex VI Chapter 4, COM (2021)562) have prompted the development and practical implementation of new decarbonization solutions.
S. Lebedevas, Tomas Čepaitis
semanticscholar   +1 more source

Assessment of the efficiency of biofuel use in the operation of marine diesel engines

Technology audit and production reserves, 2022
The object of research is the process of operation of marine diesel engines using biodiesel fuel. The subject of research is the process of experimental determination of the optimal concentration of biodiesel fuel in a mixture with fuel of petroleum ...
Volodymyr Madey
semanticscholar   +1 more source

Multifunctional Superwetting Sea‐Urchin‐Mimetic Nanosheet‐Based Interface for Remote Oil‐Water Separation

Small, EarlyView.
A fluorine‐free, FBC–rGO coating‐based robust superhydrophobic/superoleophilic sorbent (WCA >154°), enabling rapid, selective oil uptake and efficient oil/water separation. Integrated into a dolphin‐inspired Wi‐Fi mini‐bot with onboard pumping and storage, the platform enables remote, contactless, on‐site oil recovery from hazardous spill zones ...
Surya Kanta Ghadei, Madhu Bhaskaran, Sharath Sriram, Ramasamy Sakthivel, Md. Ataur Rahman   +4 more
wiley   +1 more source

An Improved Thermoeconomic Diagnosis Method: Applying to Marine Diesel Engines

Journal of Marine Science and Engineering
Thermoeconomic diagnosis methods are designed to identify faulty components and evaluate the economic implications of these faults. However, these diagnostic techniques often struggle to filter out interference from induced factors during the diagnosis ...
Nan Xu, Longbin Yang, Yu Guo, Lei Chang, Guogang Zhang, Jundong Zhang   +5 more
doaj   +1 more source

Multifaceted Behavior and Functional Versatility of Ferritic Stainless Steels, Part I: Applications and Processing, a Review

steel research international, EarlyView.
This review investigates the processing‐microstructure‐property relationships in ferritic stainless steels (FSSs). It highlights advances in deformation behavior, heat treatments, surface modifications, and alloying effects. Theoretical models, including Johnson‐Mehl‐Avrami‐Kolmogorov, Arrhenius, nucleation theory, and diffusion theories, are discussed
Shahab Bazri, Carlo Mapelli, Silvia Barella, Andrea Gruttadauria, Davide Mombelli   +4 more
wiley   +1 more source

Underwater Noise from Arctic Shipping: Impacts, Regulations and Recommendations [PDF]

, 2017
Marine mammals, including whales, walrus, and seals, rely heavily on sounds for survival. The Arctic soundscape has long been shaped by their clicks and calls.

core  

Modeling Skin Mark Temporal Variations to Estimate the Sex of Delphinids with Low Sexual Dimorphism: Implications for Management and Conservation

Integrative Zoology, EarlyView.
This work aimed to apply the principles of skin mark analysis to a cetacean species to build a sex‐discrimination model exclusively based on photographic material. Relevant differences between sexes emerged in markings, with males presenting more social, aggression‐related, and fishing‐related marks overall, and a stronger tendency of mark accumulation
Alice Turchi, Giulia Pedrazzi, Alex Mattiussi, Maria S. Labriola, Daniele Petrone, Sofia Rinalduzzi, Giancarlo Giacomini, Daniela Silvia Pace   +7 more
wiley   +1 more source

Stability Analysis in a Direct-Current Shipboard Power System with Parallel Permanent Magnet Synchronous Generators and Supercapacitor Integration

Journal of Marine Science and Engineering
This paper investigates the small-signal stability of a DC shipboard power system (SPS) with the integration of a supercapacitor. As an efficient energy storage solution, supercapacitors can not only provide rapid energy response to sudden power demand ...
Qinsheng Yun, Xiangjun Wang, Shenghan Wang, Wei Zhuang, Wanlu Zhu   +4 more
doaj   +1 more source

Pentachlorophenol and spent engine oil degradation by Mucor ramosissimus [PDF]

, 2008
Pentachlorophenol (PCP) has been widely used for many years and belongs to the most toxic pollutants. Spent engine oils enter environment every day in many ways. Both of them cause great environmental concern.
Długoński, Jerzy, Szewczyk, Rafał
core   +1 more source