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Sci, Volume 5, Issue 3

September 2023 - 11 articles

Cover Story: Power cycles are the most important energy devices for covering the energy needs of our society, and the enhancement of their performance is a sustainable way to achieve sustainability. The present investigation aims to develop semi-empirical simplified models for predicting with high accuracy the thermodynamic efficiency of the most usual power cycles. These models are based on the operating temperatures, specifically low and high cycle temperatures. The results of the present analysis can be exploited for the design of energy systems and for conducting optimization investigations. View this paper
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Articles (11)

  • Article
  • Open Access
10 Citations
3,633 Views
17 Pages

20 September 2023

Strain sensors play a pivotal role in quantifying stress and strain across diverse domains, encompassing engineering, industry, and medicine. Their applicability has recently extended into the realm of wearable electronics, enabling real-time monitor...

  • Article
  • Open Access
10 Citations
129,162 Views
33 Pages

On Hens, Eggs, Temperatures and CO2: Causal Links in Earth’s Atmosphere

  • Demetris Koutsoyiannis,
  • Christian Onof,
  • Zbigniew W. Kundzewicz and
  • Antonis Christofides

13 September 2023

The scientific and wider interest in the relationship between atmospheric temperature (T) and concentration of carbon dioxide ([CO2]) has been enormous. According to the commonly assumed causality link, increased [CO2] causes a rise in T. However, re...

  • Article
  • Open Access
1,996 Views
9 Pages

The Additional Diagnostic Value of Electrocardiogram and Strain Patterns in Transplanted Patients

  • Laura Stefani,
  • Goffredo Orlandi,
  • Marco Corsi,
  • Edoardo Falconi,
  • Roberto Palazzo,
  • Alessio Pellegrino and
  • Pietro Amedeo Modesti

25 August 2023

Background: Transplanted patients are frail individuals who may be affected by diastolic dysfunction, leading to a decrease in exercise tolerance. Previous studies have reported that certain ECG and echocardiographic parameters (such as the P-wave in...

  • Article
  • Open Access
1 Citations
2,790 Views
12 Pages

24 August 2023

Power plants constitute the main sources of electricity production, and the calculation of their efficiency is a critical factor that is needed in energy studies. The efficiency improvement of power plants through the optimization of the cycle is a c...

  • Communication
  • Open Access
2 Citations
1,782 Views
24 Pages

22 August 2023

In this paper, we analyze the convergence problems of function g of Fourier series in Besov and generalized Zygmund norms using generalized Nörlund-Matrix (Np,qA) means of Fourier series. Convergence results are also compared by means of applications...

  • Review
  • Open Access
6 Citations
4,333 Views
15 Pages

15 August 2023

Among different biological methods used for advanced wastewater treatment, membrane bioreactors have demonstrated superior efficiency due to their hybrid nature, combining biological and physical processes. However, their efficient operation and cont...

  • Article
  • Open Access
3 Citations
2,706 Views
13 Pages

Short-Term Biochemical Biomarkers of Stress in the Oyster Magallana angulata Exposed to Gymnodinium catenatum and Skeletonema marinoi

  • Rui Cereja,
  • Joana P. C. Cruz,
  • Joshua Heumüller,
  • Bernardo Vicente,
  • Ana Amorim,
  • Frederico Carvalho,
  • Sara Cabral,
  • Paula Chainho,
  • Ana C. Brito and
  • Inês J. Ferreira
  • + 1 author

17 July 2023

Bivalves accumulate toxins produced by microalgae, thus becoming harmful for humans. However, little information is available about their toxicity to the bivalve itself. In the present work, the physiological stress and damage after the ingestion of...

  • Article
  • Open Access
4 Citations
3,100 Views
20 Pages

COVID-19 as a Jump Start for Industry 4.0? Motivations and Core Areas of Pandemic-Related Investments in Digital Technologies at German Firms

  • Florian Butollo,
  • Jana Flemming,
  • Christine Gerber,
  • Martin Krzywdzinski,
  • David Wandjo,
  • Nina Delicat and
  • Lorena Herzog

7 July 2023

Academic studies prior to the pandemic rather emphasized that the progression towards Industry 4.0 happened in an incremental manner. However, the extraordinary circumstances of the pandemic have led to considerable investments that were widely inter...

  • Review
  • Open Access
2 Citations
7,726 Views
18 Pages

Sensory and Cognitive Malingering: Studies and Tests

  • Gesualdo M. Zucco and
  • Giuseppe Sartori

6 July 2023

Malingering relates to intentionally pretending or exaggerating physical or psychologic symptoms to gain an external incentive, such as avoiding work, law prosecution or military service, or seeking financial compensation from insurance companies. Ac...

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Sci - ISSN 2413-4155