With the widespread use of unmanned aerial vehicles (UAVs) in life, the real-time recognition of UAVs has become an important issue. The authors of this paper mainly studied the application of the random forest (RF) algorithm in the outdoor real-time recognition of UAVs. Mel-Frequency Cepstral Coefficient (MFCC) features were extracted from sound s...
The ongoing COVID-19 pandemic put further pressure on the economies, both at individual and global level and, amid already existing vulnerabilities, worsened the economic prospects. As a result of the negative effects of these tensions in tandem with global value chains disruptions, commodities’ prices increased, leading to strong inflationary pres...
The growing complexity and intertwining of different socio-economic issues both in individual countries and internationally mean that single-theme analyses do not consider all the relationships and thus have cognitive limitations. Therefore, studies that combine several research areas are increasingly common in the literature to clarify the connect...
This study investigates the green technology licensing strategies of firms with corporate social responsibility (CSR) in a duopoly market. The results show that in the absence of CSR, the optimal licensing contract is fixed-fee licensing for a patent holding firm. In the precent of CSR, the optimal licensing contract for a patent holding firm switc...
Ecological efficiency (EE) provides much reference for formulating appropriate regional economic, social and environmental policies to promote sustainable development. Interactive subsystems of economy, society and environment within EE system have been considered in this paper. By innovatively integrating the merits of two advanced economic resear...
Despite being rich in cultural heritage, traditional handicrafts require innovation to achieve competitiveness. This study addresses the understanding of innovation in traditional handicrafts for sustainable development. The paper emphasizes the importance and potential advantages of innovation and its synergistic effect with cultural traditions le...
The design of the packages of products/services to be offered by a telecom company to its clients is a complex decision-making process that must consider different criteria to achieve both customer satisfaction and optimization of the company’s resources. In this process, Intuitionistic Fuzzy Sets (IFSs) can be used to manage uncertainty and better...
In the 21st Century, the construction industry regards green building as an important breakthrough to achieve sustainable development, and energy-saving retrofits of residential buildings has been conducted globally with China no exception. In order to better understand consumers’ attitudes and willingness-to-pay (WTP) for green retrofits and ident...
In the current economic, social and political context, maintaining a stable trajectory of sustainable development, and thus achieving the UN Sustainable Development Goals, must be the central objective of every European country. The aim of this paper is to evaluate the level of achievement of the Sustainable Development Goals (SDGs) in Portugal, gi...
The recent COVID-19 crisis, as well as the resulting international response, have demonstrated the importance of medical innovation in meeting current and future health challenges. Yet capacity for innovation differs from country to country, and policymakers are wise to find ways to increase each nation’s ability to generate new solutions. This stu...
