Sustainable Development Model Research Articles

Optimization of anaerobic digestion parameters for biogas production from pineapple wastes co-digested with livestock wastes

The demand for energy has been growing over the years to match development and population growth. The current sustainable development model advocates for the use of renewable (green) energy sources with an aim of lowering carbon emissions thereby mitigating the effects of climate change. A circular economy aspires to keep materials in use for as long as possible thus the reuse of agricultural waste especially in energy generation is a step in this direction. This study reports on the optimization of anaerobic digestion parameters for biogas production when wastes from pineapple are co-digested with those from livestock. The volume of biogas yield was optimized with regards to temperature, pH value, and mixing ratio of the substrates using Box Behnken Design (BBD), a class of Response Surface Methodology (RSM). This was achieved through a software package, Design Expert 13.The experiments were performed using Rehau home gas systems of 6 m3 in Jomo Kenyatta University of Agriculture and Technology. Pineapple wastes were co-digested with livestock waste in the ratio of 1:1, 1:2 and 1:3. The numerical optimization results revealed that the maximum biogas yield was 1.98 m3 when the pH was set at 6.0, temperature at 30 °C and pineapple mixing ratio at 62.5%. The results from this study can form a basis for policy makers in formulating strategies to guide adoption of biogas generated from agricultural waste as a key green energy for the economy.

Innovative Technology Method Based on Evolutionary Game Model of Enterprise Sustainable Development and CNN–GRU

Realizing the sustainable innovation growth of enterprises is one of the important research directions of management science. Traditional enterprise growth innovation methods cannot effectively estimate the emotional tendency of online public opinion (PO), and they cannot guide the effective growth of enterprises. For this reason, This paper proposes an enterprise growth innovation technology based on the evolutionary game (EG) model of sustainable development and deep learning (DL). Firstly, by obtaining the game payment matrix between network users and enterprises, combined with the deep neural network model, the PO evolution model of the enterprise growth network was constructed and solved. Then, a convolutional neural network (CNN) model was used to extract sequence features from global information, and a gated recurrent unit (GRU) was used to consider the context. A DL network model based on CNN–GRU was proposed. Finally, by introducing the EG model, a stable strategy was generated through the dynamic adjustment of the whole system, which improved the accuracy of online PO judgment. Through simulation experiments, the enterprise growth innovation method proposed in this paper was compared with the other three methods. The results show that the accuracy, precision, recall, and f1 value of this method are 92.21%, 89.33%, 91.86%, and 91.64%, respectively, which are better than the other three methods. This method is of great significance for promoting enterprise innovation technology and sustainable development of enterprises.

STRATEGIC GUIDELINES FOR THE POST-WAR RECOVERY OF THE NATIONAL ECONOMY IN THE CONDITIONS OF INCLUSIVE DEVELOPMENT

Post-war recovery must consider the concept of inclusive development, which is aimed at strengthening public security and social cohesion, supporting the reconstruction of the economy of the affected and de-occupied territories, and implementing the reforms of decentralization of power and health care in communities under the control of the government of Ukraine. That is why the substantiation of the strategic orientations of the post-war recovery of the national economy should be based on the conditions of inclusive development. The article aims to justify the strategic directions of the post-war recovery of the national economy in the states of inclusive development. The analysis showed that the structural model of Ukraine's economy from the point of view of technological development remains low-tech. This is evidenced by the share of productions belonging to 4 and 5 and technological systems, which is only 3.9 and 1.1 percent, respectively. The analysis results showed negative trends in the dynamics regarding the reduction of the already low share of production in GDP, particularly in high-tech industries. It was determined that despite the growth of digital technologies in GDP, unfortunately, they are implemented primarily in public administration, trade, and service. It has been proven that the technological structure of Ukraine's economy, according to the criteria of the organization of economic cooperation regarding the conformity of the sectoral and technical construction, is unstable, and its manifestation in the future may lead to critical consequences for the well-being of the population. It is substantiated that the design of an economic model of sustainable development in conditions of uncertainty and global turbulence requires the division of factors of economic transformation into two groups ("hard factors" and "soft factors"). Characteristic of "hard factors" is that recovery and reconstruction are possible after conducting a comprehensive analysis and assessment of the state of the economic, infrastructural, and resource potential of the national economy, as well as regional economies after victory, the complete cessation of hostilities and the guarantee of military security. Accordingly, "soft factors" characterize a set of favorable climates for the implementation of planned changes, as well as the function of stimulating or inhibiting these or other processes. Keywords: strategic guidelines, national economy, post-war recovery, inclusive development.

Construction and Environmental Protection Analysis of New Energy Power Generation Projects

With the rapid development of society and the increasing number of infrastructure projects, new huge demand for energy emerges, and, in the meantime, enormous resources are being consumed. Overusing coal, oil, and natural gas consumes resources and increases the greenhouse effect, releasing more toxic substances into the ecological environment. Therefore, in the past development process, the pollution problems caused by projects that relied on fossil fuels as power generation was relatively serious. The traditional energy supply model has yet to meet the requirements of current social development. Along with the emergence of green sustainable development, transformation and upgrading of the power generation industry have become urgent issues to deal with. To effectively solve the problem of environmental pollution and achieve green growth, the current society is actively developing clean and renewable new energy to help the power generation industry develop an energy-saving and environmentally friendly sustainable development model. Among power generation projects, new energy power generation projects play an important role. However, new energy is still developing, so the project investment cost is relatively high. Therefore, it is necessary to improve the construction quality of new energy power generation projects through scientific and effective means to achieve the goal of environmental protection during development.

Creative Tourism in Islands and Regional Sustainable Development: What Can We Learn from the Pilot Projects Implemented in the Azores Territory?

The current need for territories and societies to grow is based on the Sustainable Development Models as well as the United Nations (UN) Agenda for 2030 Sustainable Development Goals (SDGs). In that case, such new forms of tourism development imply creating and upgrading critical infrastructures, facilities, equipment, or differentiated activities to bring clients who align with the desired Sustainable Development Models and SDGs. In this regard, the thematic literature provides evidence that some tourism typologies (nature-based, rural, culturally-based creative tourism) play a critical role in attaining sustainable regional development. Therefore, this paper aims to unfold what can be learned from the pilot projects implemented in the Azores region aimed toward the so-desired regional sustainability. Contextually, the obtained results ask for the regional leaders to consider encouraging entrepreneurship associated with small and medium-sized firms; fostering the diversity of touristic offerings; designing guidelines that follow sustainable development models and the SDGs; or creating meaningful investments in the conservation and protection of cultural heritage, as well as the Azorean endogenous resources.

The Low-Carbon Policy and Urban Green Total Factor Energy Efficiency: Evidence from a Spatial Difference-in-Difference Method.

In the post-epidemic background of the low-carbon economy and sustainable development, the low-carbon city pilot program (LCCP) is viewed as a practical method of improving energy efficiency. This study explores the spatial spillover effects of LCCP on green total factor energy efficiency (GTFEE) by developing a spatial difference-in-difference (SDID) model. Furthermore, we apply the mediating effects model to verify whether the rational allocation of resources is an influential channel for the spillover effect of LCCP policies. The results indicate that the LCCP policy has not only improved the local GTFEE by approximately 1.8%, but it also has a profound impact on the surrounding regions as well, which is about 76.5% that of the pilot cities. Additionally, the estimated results of the mediating effect model indicate that optimizing labor force and capital allocations are two essential channels through which the LCCP policy may contribute to improving regional cities' GTFEE. Accordingly, the pilot cities should establish specific measures for rational resource allocation and promote the spatial spillover model of sustainable development.

Developing a Model for Sustainable Development in Education Based on Convergence Education

<p style="text-align:justify">Education for sustainable development (ESD) refers to education on the values and behaviors necessary for a sustainable future and society where everyone receives high-quality benefits. In the era of the fourth industrial revolution, convergence thinking is emphasized as a method of ESD. Therefore, this study aims to derive a model for developing open convergence subjects for ESD. The idea for this model was derived by combining the process of establishing a Convergence Department at Rey Juan Carlos University in Spain and the unit activities of Kyoto University in Japan. The challenges of failing to achieve the original goal and purpose of convergence due to emphasizing specific majors were solved by defining requirements for the model. Convergence subjects that meet the requirements are developed by following the order of the proposed model. In the future, a convergence subject pilot model will be applied using the proposed model to present and operate a course development process called “technology and future are seen through the window of currency”.</p>

Circular, Cultural and Creative City Index: a Comparison of Indicators-based Methods with a Machine-Learning Approach

Culture, creativity and circularity are driving forces for the transition of cities towards sustainable development models. This contribution proposes a data-driven quantitative methodology to compute cultural performance indices of cities (C4 Index) and thus compare results derived by subjective and objective assessment methods within the case study of the Metropolitan City of Naples. After data processing with Machine-Learning (ML) algorithms, two methods for weighting the indicators were compared: principal component analysis (PCA) and geographically weighted linear combination (WLC) with budget allocation. The results highlight similar trends among higher performance in seaside cities and lower levels in the inner areas, although some divergences between rankings. The proposed methodology was addressed to fill the research gap in comparing results obtained with different aggregation methods, allowing a choice consistent with the decision-making environment.

Circular Economy and Municipal Solid Waste Management in China

The circular economy is a model for sustainable economic development that places a strong emphasis on the efficient use of energy and resources, waste reuse, and recycling. It entails establishing a mutually supportive relationship between economic expansion and ecological sustainability. Both developed and developing countries are necessitated to undertake such adjustments from a linear model to a circular economy as a result of severe environmental degradation. Despite developed regions successfully implementing the circular economy (CE) principle, transitions for most of developing countries are arduous and require or further investigation. China, the largest developing country, formally declared its intention to build a circular economy in 2002 and has since worked to regulate relevant industries. Its experience can be used as a foundation for other developing nations in approaching CE. Furthermore, municipal solid waste should be taken into account as it is a critical sector for promotion of CE. This paper investigates the current CE in China's municipal solid waste management to provide an integrative overview. It is structured through an overall view of CE and municipal solid waste (MSW), evaluations of current management in the context of three different key aspects of a circular economy, an analysis of the barriers to MSW management in China, and a conclusion with policy proposals.

APRENDIZAGEM E CAPACIDADE DE INOVAÇÃO RESPONSÁVEL

As empresas estão enfrentando um ambiente de negócios cada vez mais complexo e dinâmico, recorrendo à inovação como alternativa para elevar sua capacidade competitiva. No entanto, a emergência de novas tecnologias e a mudança para um novo modelo de desenvolvimento econômico, que combina aspectos econômico-financeiros com perspectivas socialmente responsáveis e ambientalmente conscientes, tem gerado desafios acima da capacidade de resposta destas empresas. O problema reside em como se ajustar às novas realidades, rápida e assertivamente. Estudos recentes apontam que as empresas precisam incrementar a aprendizagem organizacional para desenvolver capacidade de inovação, agora não mais sob parâmetros tradicionais, mas, adotando novos modelos, como a inovação responsável. Este estudo tem o objetivo de apontar fatores determinantes para que, concomitantemente, iniciativas de aprendizagem organizacional e desenvolvimento de capacidade de inovação possam facilitar a inserção da inovação responsável em seus processos. Trata-se de um estudo qualitativo e exploratório, que contou com uma revisão da literatura científica que trata dos conceitos de aprendizagem organizacional, capacidade de inovação e inovação responsável. Os resultados mostram que aprendizagem organizacional e desenvolvimento de capacidade de inovação podem facilitar a implementação da inovação responsável no processo inovativo de empresas, contribuindo para a transição ao modelo de desenvolvimento responsável e sustentável. Esta implementação pode garantir maior capacidade competitiva, diferenciando os produtos e serviços ofertados pelas empresas no mercado, além de se alinhar às novas demandas de stakeholders, principalmente, colaboradores e consumidores atentos às novas realidades tecnológicas e socioambientais.

An urban regeneration-placemaking strategy for the Qatar National Museum and Souq Waqif’s transit-oriented development in Doha, State of Qatar

In the past 20 years, the State of Qatar has undergone rapid urban growth. Doha, the capital city, has capitalised on large-scale urban and infrastructural projects to strengthen and diversify its economy. The transport system, however, has largely relied on private vehicles, resulting in the need for a new public transit system: the Doha Metro. The recent construction of the metro system is opening up new avenues for the urban regeneration of transit towns as compact, liveable and sustainable neighbourhoods. Due to its historic and cultural significance, the Souq Waqif and the Qatar National Museum (QNM) neighbourhoods have been selected as a case study for this paper to explore and define a strategy for placemaking, based on a sustainable transit-oriented development (TOD) model. The research design is structured in four stages: 1) reviewing the literature about TODs and urbanisation in Qatar; 2) collecting oral and visual data from municipal authorities through structured interviews, site visits and site observations; 3) analysing the collected data and identifying the assessment tools to be adopted; and 4) implementing a novel masterplan focusing on public transit systems as a catalyst for sustainable urban transformation and placemaking. The findings contribute to proposing context-driven design strategies to enhance the liveability of the investigated TODs and to extend their application to other potential transit hubs in metropolitan Doha and in the Middle East.

Research on the change of alpine ecosystem service value and its sustainable development path

Alpine ecosystems play an important role in maintaining carbon sequestration, water balance, ecological security, biodiversity and human well-being. However, climate change and high-intensity human activities lead to the continuous degradation of vulnerable alpine ecosystems. Based on this, we reveal trends in ecosystem change in the Qilian Mountains of China on a 40-year scale and identify the primary driving factors of change in alpine ecosystems from the perspective of ecosystem service value (ESV) change, providing a more comprehensive picture of the interactions between human society and natural ecosystem. The results showed that more than 55 % of ecosystem types changed from 1980 to 2018, with forests, grasslands, glaciers and bare land being the most vulnerable ecosystems to disturbance, and forest and grassland ecosystems having significant ESV potential (43.99 % and 29.57 %, respectively). However, significant land use and land cover (LULC) changes over the last decade have led to a reduction in ESV stability in alpine ecosystems, where human activities have a more significant impact on ESV of sparse woodland, shrubland and grassland ecosystem at 2800–4000 m. The temperature rise had a more noticeable impact on the ESV of glaciers, alpine meadows and bare land ecosystems at 4000–5500 m. In the long terms, climate change and population growth will threaten the restoration and management of alpine ecosystems. Different ecological development strategies need to be adopted along the altitude, and the establishment of cross regional horizontal ecological compensation mechanism should be accelerated to promote the sustainable development of ecology and people’s livelihood in mountainous areas. The results of this study will provide relevant theoretical basis and reference for decision makers, and provide a model for scientific management and sustainable development of alpine ecosystem resources worldwide.

Research on Urban Road Network Evaluation Based on Fractal Analysis

The structure of the urban road network affects the mode of urban development and the position of urban social and economic activities, families, and employment centers. Therefore, it is necessary to consider the supply inequality of urban road network and its impact on urban development so as to form a sustainable and fair urban development model in cities. Based on the fractal analysis, this paper seeks the evaluation index of urban road network layout and internal structure characteristics to guide the optimization and adjustment of the urban road network, which is of great significance for guiding urban land use, effectively utilizing geospatial space, and promoting sustainable urban development, and attempts to apply the fractal analysis concept to evaluate the urban road network in Harbin, China. It is found that there is a good relationship between the length of the urban road network and the build-up area. Therefore, fractal analysis is used to reasonably determine the spatial demand of incremental road networks, considering the impact of road network increase on development mode. This paper argues that fractal analysis is an auspicious tool for the evaluation of urban road networks, including solving the problem of supply inequality in urban road networks, which is very suitable for the gradual construction of road networks in urban situations, especially in the development environment of road networks with scarce resources.

Insights into the Role of Community Participation as a Tool for Local Support: A Normative Model for Competitive and Sustainable Destination Development

Community participation as an efficient tool for gaining local residents' support for the development of sustainable and competitive tourist destinations has been adequately established in the tourism discourse. However, due to the dynamic nature of the industry and the associated complexities involved, the conceptualization in terms of theory and operationalization of the notion concerning practicalities is still debated. Given that the wrong conceptualization of the phenomenon could lead to wrong operationalization which would translate into unwanted consequences both for the destination developers and destination communities, the issue cannot be ignored. To address the issue, this study proposes a normative model of community participation with an aim to put some of these complexities in a clear perspective. By employing Tosun`s typology, it is argued that community participation in tourism planning and decision-making, operationalization and management, and benefit receiving takes place at different levels based on the degree of control and authority that local residents have over the tourism development process. To ensure meaningful participation in all the major stages of the developmental process, local communities need to be adequately empowered. A high level of empowerment would ensure spontaneous participation which is the most desired level of participation. On the contrary, a lower level of empowerment would result in coercive participation with the least control and benefits reaching the local communities. It would ultimately lead to antagonization and a lack of local support for any destination development strategies that the developers adopt for sustainable and competitive tourism in the locality.

Developing a Sustainable Business Model of Ecotourism in Ethnic-Minority Regions Guided by the Green Economy Concept

China as a relatively large group of ethnic minorities in a country, the existence of ethnic minorities on the development of society had a great impact. At present, mass tourism in minority areas has brought many positive benefits, but also produced negative effects such as environmental pollution, local culture extinction and over-commercialization, which affected the business model of sustainable development of tourism in minority areas. Therefore, this paper aims at optimizing the environment, culture, commercialization and other issues of tourism in ethnic minority areas, and promoting the sustainable development of tourism in ethnic minority areas. Using principal component analysis and high-order confirmatory factor analysis model, this paper discusses the basic situation of tourism environment in minority areas from the perspective of tourists’ cognition. Taking the 4A-level scenic spots in three emerging areas of China as a case study, this paper provides a reference for the future tourism development of emerging areas, and considers the impact of COVID-19 epidemic. Firstly, it introduces the current tourism development in emerging areas. Then, the scale is designed by high-order factor analysis. Six first-order factors and 31 s-order factors are used to analyze the perceived quality of tourists in ethnic areas. Finally, this paper evaluates the tourism development in minority areas through the above design. In this paper, a total of 863 random tourists are investigated. It is found that the perceived quality of tourists in emerging market areas is the inclusive perception and evaluation of tourists. It involves the supply of tourism enterprises, the service of tourism staff, infrastructure and public management, the life of community residents and personal tourism experience. This paper comprehensively evaluated the tourism development of emerging areas from the above six aspects, and provided reference for the future green sustainable development of tourism in emerging areas through factor analysis. The research results provide a reference for optimizing the basic mode of tourism environment, culture and commercialization in emerging areas. Meanwhile, it also contributes to optimizing the research methods of tourism development and user perception in emerging market areas.

Food supplier sorting model for strategic supply chain sustainable development

AbstractThe sustainable supplier assessment has emerged as a strategic activity that seeks to green the value chain. Plentiful studies evaluating sustainable suppliers in the agroindustry field have been proposed. These investigations focus on selecting or ranking from the best to the worst performance. However, the sorting approach that would be more adequate when it comes to investigating the performance of partners with a view to making improvements to their systems is generally not considered to solve this problem, being an important gap in the literature. In this scenario, this research provides a food supplier sorting model using Value‐Focused Thinking (VFT) and Flexible and Interactive Tradeoff (FITradeoff) method for sorting problematic to suggest upgrades and advancements in the operation of the suppliers searching for a sustainable development. The suppliers were sorted into predefined categories depending on sustainability level: sustainable suppliers; suppliers in path of development; and non‐green suppliers. The method was applied for evaluating suppliers in a Colombian food industry. Finding shows that the proposed model is useful to categorize suppliers, serving to design particular green programs for each class to improve them, while also suggesting a strategic direction to greener the food supply chain in accordance with the goals of the sustainable development.

Sustainable tourism development model based on collaborative stakeholders: a dynamic system perspective

Sektor pariwisata merupakan penyumbang terbesar kedua pendapatan suatu daerah. Oleh karena itu dalam proses pembangunannya diperlukan colaboratif stakeholder. Pembangunan pariwisata di Kabupaten Lombok Timur memerlukan penerapan dari konsep Penta Helix yang terdiri dari unsur pemerintah, akadmisi, pengusaha, masyarakat dan media bersatu dalam tujuan mewujudkan pembangunan pariwisata berkelanjutan. Unsur pemerintah mempunyai political power merumuskan kebijakan melalui keputusan. Sementara masyarakat disebut social power. akademisi memiliki kekuatan knowledge power, yang keempat yakni pengusaha dan terakhir yakni media. Penelitian ini bertujuan untuk mendeskripsikan, menjelaskan dan menganalisis pengembangan dinamika potensi pariwisata dan mensimulasikan skenario-skenario yang dikembangkan untuk kondisi yang akan datang serta mendeskripsikan, menjelaskan sebuah model pengembangan pariwisata berkelanjutan di Kabupaten Lombok Timur. Metode penelitian menggunakan pendekatan sistem dinamis yang merupakan bagian dari konsep systems thinking yang dapat diartikan sebagai cara memandang masalah sebagai sebuah sistem secara menyeluruh. Lokasi penelitian dilakukan di Kabupaten Lombok Timur. Teknik pengumpulan data dilakukan dengan wawancara, observasi dan dokumentasi. Instrumen penelitian dilakukan oleh peneliti sendiri, interview guide dan alat penunjang penelitian. Data yang diperoleh selanjutnya dianalisis dengan pendekatan model sistem yang terdiri dari penstrukturan masalah, pemodelan causal loops diagram dan dynamic modeling.

Research on Sustainable Development Model of Chinese Artist Village

As a development form of the creative industry, the Artist Village is a high concern of the Chinese government, and it has achieved rapid developments in China in recent years. However, many Artist Villages come to an untimely end a short period after their birth and fail to realize sustainable development. In this study, an empirical analysis on 80 Artist Villages in China was carried out. A field investigation and research on eight Artist Villages was implemented. Attention was paid to thoroughly analyze three typical Artist Villages of Guangzhou Xiaozhou Artist Village, Chongqing Gujianshan Artist Village and Beijing Songzhuang Artist Village. It has been found from studies that the development of Artist Villages in China has experienced initiation, development and maturity stages. The development of Artist Villages in China generally has many problems, such as an insufficient endogenous impetus, the excessive intervention of government, market capital “squeezing out” the original artists, and so on. This paper proposed a sustainable development model for Artist Villages during urbanization in China based on the findings and conclusions of this study. This study not only enriches research contents in this field, but can also provide meaningful references for the sustainable development of Artist Villages in China.

An Approach of Sustainable Development Model for Water Security in Growing Cities

An Approach of Sustainable Development Model for Water Security in Growing Cities

An Approach of Sustainable Development Model for Water Security in Growing Cities

An Approach of Sustainable Development Model for Water Security in Growing Cities