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Sustainability, Volume 15, Issue 21

November-1 2023 - 493 articles

Cover Story: The paper addresses two issues. The first is plastic waste. Most plastic waste has high energy value, so it could be used to produce synthetic fuel. The second is the prediction of cavitation development and erosion in a common-rail diesel injector. Pyrolytic oils from waste HDPE and LDPE polyethylene were obtained using thermal and catalytic pyrolysis. The properties of the oils were noted in the ANSYS FLUENT software and used to study the cavitation and erosion phenomena inside an injection nozzle hole. The obtained pyrolytic oils have lower density, surface tension and viscosity compared to conventional diesel. The occurrence of cavitation is advanced when pyrolytic oils are used, and the length of cavitation structures is greater. The area of cavitation erosion prediction is shifted closer to the nozzle exit. View this paper
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Articles (493)

  • Article
  • Open Access
13 Citations
5,311 Views
22 Pages

6 November 2023

While technology is developing rapidly, natural resources are being exploited with more and more factories. Global environmental problems draw attention to the issue of sustainability as a warning sign. In this situation, encouraging the development...

  • Article
  • Open Access
6 Citations
1,956 Views
21 Pages

Study on the Stress Evolution and Strengthening Support Timing of the Retracement Channel under the Super-Thick Nappe

  • Ruojun Zhu,
  • Xizhan Yue,
  • Yudong Gao,
  • Xuesheng Liu,
  • Xuebin Li,
  • Chengcheng Xie and
  • Kun Wang

6 November 2023

The superposition effect of the advanced support pressure of the working face in the final mining stage and the lateral support stress of the roadway is a key factor affecting the stability of the retracement channel. To study the stress evolution of...

  • Article
  • Open Access
4 Citations
2,155 Views
17 Pages

6 November 2023

This study addressed the intricate interplay between meteorological droughts and groundwater level fluctuations in the vicinity of Mount Uludag in Bursa, Turkey. To achieve this, an exhaustive analysis encompassing monthly precipitation records and g...

  • Article
  • Open Access
3 Citations
2,343 Views
14 Pages

Dependency and Elderly Care: The Cost of the Long-Term Care System in the Context of the SDGs

  • Belén Díaz Díaz,
  • Rebeca García-Ramos,
  • Carlos López Gutiérrez and
  • Andrea Pérez

6 November 2023

The rapid ageing of populations around the world is creating complex challenges for national governments. The establishment of sustainable and equitable long-term care systems for old and dependent people is one of the main issues of social policy in...

  • Essay
  • Open Access
3 Citations
1,909 Views
25 Pages

6 November 2023

Geotechnical engineering works in deep-incised valleys or open-pit mining areas often encounter high-steep scarp slopes with a slope angle greater than 75°. This type of slope directly threatens the safety of construction personnel, so assessing...

  • Article
  • Open Access
1 Citations
2,212 Views
20 Pages

6 November 2023

Travel well-being is the subjective feeling of satisfaction that people have while traveling. Previous research focused on its determinants and relationships with subjective well-being ignored. But no quantitative study discusses the effect of charac...

  • Article
  • Open Access
5 Citations
3,178 Views
28 Pages

6 November 2023

The world energy sector is experiencing many challenges, such as maintaining a demand–supply balance with continuous increases in demand, reliability issues, and environmental concerns. Distributed energy resources (DERs) that use renewable ene...

  • Article
  • Open Access
5 Citations
1,923 Views
17 Pages

6 November 2023

Land ecological security (LES) and high-quality economic development (HED) are mutually influential. China has three world-class urban agglomerations; the Beijing–Tianjin–Hebei (BTH) region is one of them. It is an important platform for...

  • Article
  • Open Access
2 Citations
4,457 Views
16 Pages

Life Cycle Assessment of Tomato Cultivated in an Innovative Soilless System

  • Maria Concetta Pedalà,
  • Marzia Traverso,
  • Simona Prestigiacomo,
  • Antonio Covais and
  • Giovanni Gugliuzza

6 November 2023

The main goal of this study is to present the life cycle assessment results of an innovative closed-loop production system, called an agriponic system, used for producing tomatoes. In the study, this new system is presented, as well as its related en...

  • Article
  • Open Access
13 Citations
9,024 Views
22 Pages

6 November 2023

Research on the relationship between digitalization and firm performance has grown exponentially over the past decade. However, most studies in this area have concentrated on large firms, focusing on IT capabilities in developed markets. The explorat...

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Sustainability - ISSN 2071-1050