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17 Results Found

  • Article
  • Open Access
1 Citations
2,803 Views
15 Pages

Comparison between Conventional and Non-Conventional Computer Methods to Define Antiknock Properties of Fuel Mixtures

  • Leonardo Pulga,
  • Diego Lacrimini,
  • Claudio Forte,
  • Valerio Mariani,
  • Stefania Falfari and
  • Gian Marco Bianchi

13 April 2022

Research Octane Number (RON) is one of the primary indicators for the determination of the resistance of gasoline fuels to autoignition. This parameter is usually determined with a test procedure involving a standardized engine that requires expensiv...

  • Article
  • Open Access
12 Citations
3,667 Views
12 Pages

Mechanistic Insight into Permeation of Plasma-Generated Species from Vacuum into Water Bulk

  • Jamoliddin Razzokov,
  • Sunnatullo Fazliev,
  • Akbar Kodirov,
  • Pankaj AttrI,
  • Zhitong Chen and
  • Masaharu Shiratani

Due to their potential benefits, cold atmospheric plasmas (CAPs), as biotechnological tools, have been used for various purposes, especially in medical and agricultural applications. The main effect of CAP is associated with reactive oxygen and nitro...

  • Article
  • Open Access
1 Citations
3,750 Views
21 Pages

Investment in Forest Watershed—A Model of Good Practice for Sustainable Development of Ecosystems

  • Iulia Diana Arion,
  • Felix H. Arion,
  • Ioan Tăut,
  • Iulia Cristina Mureșan,
  • Marioara Ilea and
  • Marcel Dîrja

14 February 2023

Estimating the efficiency of the investments that generate public benefits is not an easy task, as there are various methods proposed for evaluating the value of public goods and services. The novelty of the study consists of the proposed cost–...

  • Article
  • Open Access
12 Citations
3,384 Views
13 Pages

Impact of Adding Bioethanol and Dimethyl Carbonate on Gasoline Properties

  • Sibel Osman,
  • Olga Valerica Sapunaru,
  • Ancaelena Eliza Sterpu,
  • Timur Vasile Chis and
  • Claudia I.Koncsag

15 February 2023

Bioethanol and dimetyl carbonate (DMC) are considered alternative fuels and additives to the synthesis compounds used now, since bioethanol is a biofuel and dimethyl carbonate (DMC) is non-toxic, biodegradable and can be produced in a cleaner way. In...

  • Article
  • Open Access
4 Citations
2,526 Views
8 Pages

Development of a Framework for On-Demand Caesarean Section in Romania

  • Ion Petre,
  • Flavia Barna,
  • Cosmin Cîtu,
  • Florin Gorun,
  • Oana-Maria Gorun,
  • Laurentiu Cezar Tomescu,
  • Adrian Apostol,
  • Anca Bordianu,
  • Cristian Furau and
  • Izabella Petre

Background: Caesarean section rates have continued to trend upward in most countries, including Romania, creating a number of economic challenges. In the public health system, there is no regulation for performing Caesarean sections on demand; it is...

  • Article
  • Open Access
6 Citations
3,207 Views
12 Pages

Products of Bisphenol A Degradation Induce Cytotoxicity in Human Erythrocytes (In Vitro)

  • Katerina Makarova,
  • Ewa Olchowik-Grabarek,
  • Krzysztof Drabikowski,
  • Justyna Kurkowiak and
  • Katarzyna Zawada

28 December 2022

The aim of this work has been to study the possible degradation path of BPA under the Fenton reaction, namely to determine the energetically favorable intermediate products and to compare the cytotoxicity of BPA and its intermediate products of degra...

  • Article
  • Open Access
11 Citations
2,143 Views
21 Pages

Development and Experimental Validation of an Adaptive, Piston-Damage-Based Combustion Control System for SI Engines: Part 2—Implementation of Adaptive Strategies

  • Alessandro Brusa,
  • Nicolò Cavina,
  • Nahuel Rojo,
  • Jacopo Mecagni,
  • Enrico Corti,
  • Davide Moro,
  • Matteo Cucchi and
  • Nicola Silvestri

27 August 2021

This work focuses on the implementation of innovative adaptive strategies and a closed-loop chain in a piston-damage-based combustion controller. In the previous paper (Part 1), implemented models and the open loop algorithm are described and validat...

  • Article
  • Open Access
4,057 Views
27 Pages

Operative Improvement in the Naphtha Catalytic Reforming Process to Reduce the Environmental Impact of Benzene Fugitive Emissions from Gasoline

  • Fabiola Velázquez-Alonso,
  • César Abelardo González-Ramírez,
  • José Roberto Villagómez-Ibarra,
  • Elena María Otazo-Sánchez,
  • Martín Hernández-Juárez,
  • Fernando Pérez-Villaseñor,
  • Ángel Castro-Agüero,
  • Laura Olivia Alemán-Vázquez,
  • César Camacho-López and
  • Claudia Romo-Gómez

A challenge for the oil refinement industry is the production of high-octane gasoline with a low benzene content. This work reports the calculation of the atmospheric benzene emissions generated from gasoline storage, transfer, and transport operatio...

  • Article
  • Open Access
4 Citations
2,621 Views
23 Pages

Different RONS Generation in MTC-SK and NSCL Cells Lead to Varying Antitumoral Effects of Alpha-Ketoglutarate + 5-HMF

  • Joachim Greilberger,
  • Katharina Erlbacher,
  • Philipp Stiegler,
  • Reinhold Wintersteiger and
  • Ralf Herwig

Background: Carbonylated proteins (CPs) serve as specific indicators of increased reactive oxygen and nitrogen species (RONS) production in cancer cells, attributed to the dysregulated mitochondrial energy metabolism known as the Warburg effect. The...

  • Article
  • Open Access
3 Citations
3,836 Views
22 Pages

Average Carbon Number Analysis and Relationship with Octane Number and PIONA Analysis of Premium and Regular Gasoline Expended in Ecuador

  • Katherine Pazmiño-Viteri,
  • Katty Cabezas-Terán,
  • Daniel Echeverría,
  • Marcelo Cabrera and
  • Sebastián Taco-Vásquez

14 August 2024

The quality of fuel depends on its chemical composition, which influences engine performance. Gas chromatography, a cornerstone of global oil and fuel R&D, remains crucial for ensuring the quality of petroleum products and regulatory compliance....

  • Article
  • Open Access
925 Views
24 Pages

In Vitro and In Silico Evaluation of the Pyrolysis of Polyethylene and Polypropylene Environmental Waste

  • Joaquín Alejandro Hernández Fernández,
  • Katherine Liset Ortiz Paternina,
  • Jose Alfonso Prieto Palomo,
  • Edgar Marquez and
  • Maria Cecilia Ruiz

7 November 2025

Plastic pollution, driven by the durability and widespread use of polyolefins such as polypropylene (PP) and high-density polyethylene (HDPE), poses a formidable environmental challenge. To address this issue, we have developed an integrated multisca...

  • Article
  • Open Access
8 Citations
6,391 Views
13 Pages

Gallium Nitride Normally-Off Vertical Field-Effect Transistor Featuring an Additional Back Current Blocking Layer Structure

  • Huolin Huang,
  • Feiyu Li,
  • Zhonghao Sun,
  • Nan Sun,
  • Feng Zhang,
  • Yaqing Cao,
  • Hui Zhang and
  • Pengcheng Tao

A gallium nitride (GaN) semiconductor vertical field-effect transistor (VFET) has several attractive advantages such as high power density capability and small device size. Currently, some of the main issues hindering its development include the real...

  • Article
  • Open Access
15 Citations
4,774 Views
22 Pages

Intramolecular Hydrogen Bond, Hirshfeld Analysis, AIM; DFT Studies of Pyran-2,4-dione Derivatives

  • Ahmed T. A. Boraei,
  • Matti Haukka,
  • Ahmed A. M. Sarhan,
  • Saied M. Soliman and
  • Assem Barakat

30 July 2021

Intra and intermolecular interactions found in the developed crystals of the synthesized py-ron-2,4-dione derivatives play crucial rules in the molecular conformations and crystal stabili-ties, respectively. In this regard, Hirshfeld calculations wer...

  • Article
  • Open Access
2 Citations
2,179 Views
15 Pages

Optimization of Bilayer Resistive Random Access Memory Based on Ti/HfO2/ZrO2/Pt

  • Zhendong Sun,
  • Pengfei Wang,
  • Xuemei Li,
  • Lijia Chen,
  • Ying Yang and
  • Chunxia Wang

17 April 2024

In this paper, the electrothermal coupling model of metal oxide resistive random access memory (RRAM) is analyzed by using a 2D axisymmetrical structure in COMSOL Multiphysics simulation software. The RRAM structure is a Ti/HfO2/ZrO2/Pt bilayer struc...

  • Article
  • Open Access
5 Citations
2,821 Views
31 Pages

Experimental and Numerical Analysis on Two-Phase Induced Low-Speed Pre-Ignition

  • Norbert Zöbinger,
  • Thorsten Schweizer,
  • Thomas Lauer,
  • Heiko Kubach and
  • Thomas Koch

17 August 2021

The root cause of the initial low-speed pre-ignition (LSPI) is not yet clarified. The literature data suggest that a two-phase phenomenon is most likely triggering the unpredictable premature ignitions in highly boosted spark-ignition engines. Howeve...

  • Article
  • Open Access
2 Citations
2,764 Views
21 Pages

13 April 2023

Gasoline is the primary fuel used in small cars, and the exhaust emissions from gasoline combustion have a significant impact on the atmosphere. Efforts to clean up gasoline have therefore focused primarily on reducing the olefin and sulfur content o...

  • Article
  • Open Access
14 Citations
3,293 Views
23 Pages

Hydroisomerisation and Hydrocracking of n-Heptane: Modelling and Optimisation Using a Hybrid Artificial Neural Network–Genetic Algorithm (ANN–GA)

  • Bashir Y. Al-Zaidi,
  • Ali Al-Shathr,
  • Amal K. Shehab,
  • Zaidoon M. Shakor,
  • Hasan Sh. Majdi,
  • Adnan A. AbdulRazak and
  • James McGregor

19 July 2023

In this paper, the focus is on upgrading the value of naphtha compounds represented by n-heptane (n-C7H16) with zero octane number using a commercial zeolite catalyst consisting of a mixture of 75% HY and 25% HZSM-5 loaded with different amounts, 0.2...