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The increasing demand for sustainable offshore energy solutions necessitates efficient power conversion technologies that minimize environmental impact while ensuring reliable energy delivery. The DC-DC buck converter plays a crucial role in marine renewable energy systems, optimizing power conversion for offshore wind, wave, and floating solar applications. However, selecting the most efficient and sustainable converter requires balancing efficiency, reliability, cost, thermal performance, and size under harsh marine conditions. This study proposes a hybrid AHP-VIKOR methodology to evaluate and rank DC-DC buck converter designs, integrating expert-driven weighting (AHP) with quantitative ranking (VIKOR). The results identify the most optimal design, achieving high efficiency, minimal thermal losses, and improved durability, thus contributing to the sustainability of offshore energy systems. This approach systematically addresses multi-criteria trade-offs, ensuring a data-driven and environmentally conscious selection process. It supports the development of resilient, energy-efficient marine power electronics.
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http://dx.doi.org/10.1016/j.marpolbul.2025.117809 | DOI Listing |
Biosens Bioelectron
September 2025
College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun, 130012, China. Electronic address:
Papillary thyroid carcinoma (PTC) is the most prevalent form of thyroid cancer with a high incidence among endocrine malignancies. It tends to metastasize early in lymph nodes and differs markedly from other subtypes in biological behavior, clinical management, and prognosis. Therefore, accurately distinguishing PTC from other pathological subtypes is crucial for guiding diagnosis and treatment decisions.
View Article and Find Full Text PDFJ Inorg Biochem
September 2025
National Renewable Energy Laboratory, Biosciences Center, Golden, CO, USA. Electronic address:
Flavin-based electron bifurcation (FBEB) is employed by microorganisms for controlling pools of redox equivalents by reversibly splitting electron pairs into high- and low-energy levels from an initial midpoint potential. Our ability to harness this phenomenon is crucial for biocatalytic design which is limited by our understanding of energy coupling in the bifurcation system. In Pyrococcus furiosus, FBEB is carried out by the NADH-dependent ferredoxin:NADP-oxidoreductase (NfnSL), coupling the uphill reduction of ferredoxin in NfnL to the downhill reduction of NAD in NfnS from oxidation of NADPH.
View Article and Find Full Text PDFJ Am Soc Mass Spectrom
September 2025
Anhui Province Key Laboratory for Control and Applications of Optoelectronic Information Materials, School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241000, China.
An integrated miniature time-of-flight mass spectrometer (TOF-MS) system coupled with a pocket-size 3D-printed laser-induced acoustic desorption (LIAD) source is described. This 3D-printed LIAD source utilizes only a miniature deceleration motor to achieve two-dimensional motion of the target surface, simplifying the source structure and improving the long-term stability of mass spectrometry measurements. It has been successfully applied to analyze the model molecule creatinine and ingredients in an energy beverage (Red Bull), where main natural nutrients were clearly identified.
View Article and Find Full Text PDFChem Rev
September 2025
Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200438, P. R. China.
Diffusion is a fundamental process in the transfer of mass and energy. Diffusion metamaterials, a class of engineered materials with distinctive properties, enable precise control and manipulation of diffusion processes. Meanwhile, topology, a branch of mathematics, has attracted growing interest within the condensed matter physics community.
View Article and Find Full Text PDFInorg Chem
September 2025
Jiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
The selection of hydrogen-bonding donors is crucial for the development of stimuli-responsive luminescent materials that rely on weak hydrogen-bonding interactions. In this study, we report two novel dinuclear Cu(I) complexes, [Cu(μ-η(,),η(,)-dpa)(μ-dppm)](ClO) () and [Cu(μ-η(,),η(,)-dpa)(μ-dppa)](ClO)·2CHCOCH (), which differ in their diphosphine linkers (CH in dppm vs NH in dppa). X-ray crystallography reveals weak CH···O hydrogen bonds between dppm-CH and perchlorate-O in and weak NH···O interactions between dppa-NH and acetone-O in .
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