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Applied Sciences, Volume 15, Issue 15

August-1 2025 - 645 articles

Cover Story: This paper proposes relaxed Simultaneous Signal and Noise Matching (SSNM) conditions to address limitations in selecting source degeneration inductors for multistage LNA design, achieved by introducing controlled mismatches at the external ports. Additionally, a novel frequency-bounded mismatch envelope is introduced to guide load termination selection based on desired IM-OM (input mismatch-output mismatch) characteristics across the operating band. Building on these concepts, a systematic, easy-to-follow strategy is presented for implementing wideband multistage low-noise amplifiers (LNAs). This approach is validated through a three-stage MMIC LNA prototype. The measured results closely match the simulation, demonstrating a stable gain of 23 ± 1 dB and a noise figure of 2–2.5 dB, confirming the practical effectiveness of the proposed design approach for wideband amplifiers. View this paper
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Articles (645)

  • Communication
  • Open Access
893 Views
12 Pages

7 August 2025

Molecular-mimetic nanocolloids (MMNCs) are promising for advanced materials, yet self-assembly fabrication faces challenges in purity and programmability. We report a total synthesis strategy for surfactant-mimetic nanocolloids (SMNCs), an amphiphili...

  • Article
  • Open Access
1,123 Views
30 Pages

The Multi-Branch Deep-Learning-Based Approach to Heart Dysfunction Classification

  • Krzysztof Hryniów,
  • Bartosz Puszkarski and
  • Marcin Iwanowski

7 August 2025

Cardiovascular diseases (CVDs), which remain globally one of the most common causes of death, are usually diagnosed based on the electrocardiogram (ECG) signal. To support human experts, modern deep-learning models are used for CVD classification pro...

  • Article
  • Open Access
1 Citations
841 Views
21 Pages

Preventive Diagnosis of Biological Colonization and Salt-Related Decay on the Frescoes of the “Oratorio dell’Annunziata” (Riofreddo, Latium, Italy) to Improve Conservation Plans

  • Flavia Bartoli,
  • Annalaura Casanova Municchia,
  • Marco Tescari,
  • Ilaria Ciccone,
  • Paolo Rosati,
  • Alessandro Lazzara and
  • Maria Catrambone

7 August 2025

The frescoed Annunziata Oratory chapel in Riofreddo (Italy), a unique testimony to the pontificate of Martin V, sheds light on the trade routes of Ninfa in the first half of the 15th century. Despite having undergone several restorations in the past...

  • Article
  • Open Access
1,081 Views
13 Pages

7 August 2025

There is minimal research concerning the role of custom-trained artificial intelligence (AI) tools in higher education, with a lack of research concerning the pedagogical qualities of an AI-based personal tutor. To fill this literature gap, we examin...

  • Article
  • Open Access
866 Views
18 Pages

7 August 2025

Subclinical mastitis in dairy cows poses a significant challenge to the dairy industry, leading to reduced milk yield, altered milk composition, compromised animal health, and substantial economic losses for dairy farmers. A model based on the XGBoos...

  • Article
  • Open Access
771 Views
13 Pages

Effect of Sodium Sulfate Treatment on the Modulation of Aliphatic Glucosinolates in Eruca sativa Mill Organs at Flowering Stage

  • Eleonora Pagnotta,
  • Laura Righetti,
  • Gabriele Micheletti,
  • Carla Boga,
  • Annamaria Massafra,
  • Luisa Ugolini,
  • Lorena Malaguti,
  • Roberto Matteo,
  • Federica Nicoletti and
  • Roberto Colombo
  • + 2 authors

7 August 2025

Glucosinolates are secondary metabolites of the Brassicales, playing a role in plant protection and as health-promoting compounds. Here, Na2SO4 was used to modulate the aliphatic glucosinolate content in different organs of Eruca sativa Mill. In flow...

  • Article
  • Open Access
2 Citations
849 Views
21 Pages

7 August 2025

This study investigates the potential of residual clays from a traditional ceramic-producing region in southern Portugal as raw materials for red ceramic applications. This work aims to support more sustainable ceramic practices through the local val...

  • Article
  • Open Access
1,184 Views
21 Pages

Identification of Bottlenecks in Passenger Handling Processes Using Data-Driven Tools

  • Edina Jenčová,
  • Tatiana Gajdušková,
  • Martin Jezný and
  • Pavol Hudák

7 August 2025

The paper focuses on the identification of “bottlenecks” in the passenger handling process at the airports. In the current era of digital transformation and the emergence of Industry 4.0 and 5.0 concepts, optimizing passenger flows throug...

  • Article
  • Open Access
831 Views
10 Pages

Mutation Rates and Fitness Genes in Staphylococcus aureus Treated with the Medicinal Plant Synadenium glaucescens

  • Zaituni Msengwa,
  • Martin Saxtorph Bojer,
  • Frank Rwegoshora,
  • James Mwesongo,
  • Magesa Mafuru,
  • Faith Philemon Mabiki,
  • Beda John Mwang’onde,
  • Madundo Mkumbukwa Mtambo,
  • Lughano Jeremy Kusiluka and
  • Henrik Christensen
  • + 2 authors

7 August 2025

Extracts, fractions and the pure compound epifriedelanol of the medicinal plant Synadenium glaucescens have antibacterial properties. Herbal products are generally considered less prone to resistance development than conventional antimicrobials, as t...

  • Article
  • Open Access
1,023 Views
25 Pages

7 August 2025

During humanitarian crises, social media generates over 30 million multimodal tweets daily, but 20% textual noise, 40% cross-modal misalignment, and severe class imbalance (4.1% rare classes) hinder effective classification. This study presents CLIP-...

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Appl. Sci. - ISSN 2076-3417