Improving Thermoacoustic Low-Temperature Heat Recovery Systems

Sustainability, Journal Year: 2022, Volume and Issue: 14(19), P. 12306 - 12306

Published: Sept. 27, 2022

The existence and development of modern society require significant amounts available energy. Combustion engines are the main sources heat. Their operation is accompanied by formation large volumes emissions, which have different temperatures contain harmful substances ejected into environment. Therefore, urgent problem today reduction in heat emissions. This might be achieved through a amount these pollutants improving primary engines, converting to new, alternative types fuel, at same time, carbon-free fuel. However, such measures only reduce temperature level waste but not its volume. Conventional technologies for utilization emissions ineffective using with below 500 K. Thermoacoustic can used convert low-temperature mechanical work or electricity. article focused on analyzing possibilities thermoacoustic energy-saving systems rational organization energy conversion processes. An original mathematical model exchange between internal elements developed. It shown that use recuperative exchangers leads decrease their efficiency 10–30%. From research results, new methods increasing proposed.

Language: Английский

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Facing involuntary immobility: Prioritizing the marginalized in climate and disaster risk policy

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

Globally, populations are increasingly located in areas at high risk of frequent, extreme weather events. Some exposed have the ability to move safer places; others unable get out harm’s way. The climate risks facing these involuntary immobile not often addressed by local and national authorities, despite increasing recognition international development agencies humanitarian actors. Here we discuss when how events lead immobility considering influence political, socioeconomic, environmental factors. Addressing barriers policy disaster planning, early warning systems anticipatory action could be tailored support involuntarily communities. While planning should data-informed, lack appropriate data quality limit governments institutions from taking action. Immobility needs aligned with broader sustainable objectives which entail justice orderly migration.

Language: Английский

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The demographic future of migration is African

International Migration, Journal Year: 2025, Volume and Issue: 63(1)

Published: Jan. 1, 2025

Language: Английский

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Sustainable Migration and Depopulation: A Methodological Proposal From the Perspective of the SDGs

Sustainable Development, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

ABSTRACT Sustainable development requires orderly migratory flows that avoid the resulting socio‐economic tensions in countries of origin and destination. Issues such as climate, armed conflicts lack job stability encourage human displacement towards large cities, simultaneously generating problems densification at destination depopulation abandoned areas. In this study, we analyzed link between determinants quality life immigration, with aim identify factors need to be strengthened “emptied” territories and, way, achieve a reasonable distribution population. We use methodological advance random forest order correctly address complexity variability data. The study is limited Spain's 19 autonomous regions, which suffer from both overpopulation, covering broad period guarantees robustness results (2008–2021). There evidence importance labor market, health education settlement migrants. Decision‐makers strengthen these aspects under‐inhabited areas by directing financial resources enhancing their attractiveness. This will make it possible redirect exodus re‐establishing economic social whole.

Language: Английский

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Climate Change and Human Mobility: Considering Context, Mechanisms, and Selectivity

Population and Development Review, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Abstract Climate change is projected to increase human mobility. Research links climate stressors, such as warming temperatures, severe weather events, and rising sea levels, migration within between countries in many regions of the world. This paper reviews this new frontier for research charts directions future work. Understanding mobility, we argue, requires considering local context identify mechanisms (what impacts) selectivity (who responds). needs draw more on existing theory deduce patterns under alternative drivers mobility extend by how those shift shocks. also generalize from diverse findings documenting which are most common contexts.

Language: Английский

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Electron Asymmetry Engineering of Nickel Selenides for Enhanced Water Dissociation

Materials Today Energy, Journal Year: 2025, Volume and Issue: unknown, P. 101832 - 101832

Published: Feb. 1, 2025

Language: Английский

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Anticipating climate change-related mobility in Karachi and Ho Chi Minh City: lessons from a hybrid foresight approach

Data & Policy, Journal Year: 2025, Volume and Issue: 7

Published: Jan. 1, 2025

Abstract Climate change exacerbates existing risks and vulnerabilities for people globally, migration is a longstanding adaptation response to climate risk. The mechanisms through which shapes human mobility are complex, however, gaps in data knowledge persist. In these gaps, the United Nations Development Programme’s (UNDP) Predictive Analytics, Human Mobility, Urbanization Project employed hybrid approach that combined predictive analytics with participatory foresight explore change-related Pakistan Viet Nam from 2020 2050. Focusing on Karachi Ho Chi Minh City, project estimated temporal spatial patterns under different scenarios evaluated impact of such in-migration across key social, political, economic, environmental domains. Findings indicate net into cities could significantly increase extreme scenarios, highlighting both complex population potential anticipatory policies mitigate impacts. While extensive research exists methods theory, process reflections underrepresented. innovative within this offers valuable insights exercise design choices their implications effective stakeholder engagement, as well applicability transferability support policymaking. Beyond substantive findings, paper critical reflection methodological alignment data-driven aim policy ideation, seeking contribute enhanced effectiveness practices.

Language: Английский

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Climate Change and Refugees in South Asia: An Integrated-Relational Approach

Environmental Claims Journal, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Feb. 11, 2025

Language: Английский

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Present and future limits to climate change adaptation

Nature Sustainability, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Language: Английский

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Modeling the Interactive Patterns of International Migration Network through a Reverse Gravity Approach

Sustainability, Journal Year: 2024, Volume and Issue: 16(6), P. 2502 - 2502

Published: March 18, 2024

The international migration network, comprising the movements of people between countries, is one most important global systems interaction, which can reflect complex relations economics, cultures, and politics has huge impacts on sustainability. However, conventional gravity model cannot its complicated interactions accurately. In this article, we propose a novel reverse using genetic algorithm to reconstruct interaction patterns with high accuracy. To verify feasibility our method, it was applied series networks. We found that derived node attractions were highly correlated socioeconomic factors network metrics, calculated positions outperformed geometric centers from perspective human related economy demography. Our approach could be preferred choice investigate spatial–temporal interactive in geographical space, facilitating comprehension mechanisms underlying their generation evolution.

Language: Английский

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