Universitas Diponegoro: Undip E-Journal System (UEJS) Portal
Not a member yet
9349 research outputs found
Sort by
Assessing Urban Planning Effectiveness in Jakarta with A Penta-Helix Lens on Public
Full text linkThis study rigorously assesses the efficacy of urban planning and development in Jakarta, a dynamic megacity confronting multifaceted urbanization challenges and complex governance issues. Employing a mixed-methods research design, the investigation critically analyzes the interactive role of the Penta-helix collaboration model and the nuanced perceptions of its populace. Qualitative data were meticulously gathered through in-depth interviews with key Penta-helix stakeholders, providing rich contextual insights. Concurrently, quantitative data were systematically collected via a comprehensive survey administered to 400 Jakarta residents, enabling broader statistical generalization. The research focuses on five pivotal variables: policy inclusivity, program implementation effectiveness, environmental sustainability, public participation, and spatial innovation. Preliminary findings indicate varying degrees of success across these areas, often revealing disparities between policy intentions and on-the-ground realities. While an initial congruence of 70-85% between qualitative themes and quantitative perceptions was anticipated, the actual outcomes, particularly concerning inclusivity and participation, suggest a lower alignment, underscoring significant gaps in urban governance. This study offers empirically-driven recommendations for fostering more adaptive, equitable, and sustainable urban development strategies in Jakarta, contributing valuable insights to the discourse on megacity management in developing contexts
The Experience of Commuters Facing Severe Traffic Congestion in The Jabodetabek Area
Full text linkCongestion that occurs in the Greater Jakarta metropolitan area is the result of an imbalance between road capacity and the number of vehicles crossing an area. According to data from the 2023 commuter survey, 79% of private vehicle users and 19.5% of public transportation users, the rest are non-motorized vehicle users. Congestion that occurs is not only due to an imbalance in road capacity and the use of motor vehicles, there are factors that affect severe congestion in Greater Jakarta, namely individual characteristic variables (gender, age, education, occupation, and income), mode of transportation (mode of transportation used and frequency of change of modes) and travel characteristics (distance traveled and travel time). Variables of distance traveled and travel time are important factors for severe congestion in Greater Jakarta. This study aims to analyze the influence and significance of each variable on the chances of severe congestion experienced by commuters in the Greater Jakarta area. This data was analyzed statistically descriptive and inferential. This study utilizes microdata from the 2023 Jabodetabek Commuter Survey from the Central Statistics Agency. The results of the analysis show that all the variables proposed in this study have a significant effect on the chance of severe congestion
Kajian Awal Proses Konversi Limbah Plastik Menjadi Bahan Bakar Alternatif Menggunakan Alat Sederhana pada Skala Praktikum
Full text linkPlastic waste has become an increasingly serious environmental problem due to the high consumption of plastic materials and their resistance to natural degradation. On the other hand, plastics contain a high proportion of hydrocarbons, making them potentially suitable as alternative energy sources through thermal conversion processes. This study aims to explore the conversion of plastic bottle waste into liquid fuel using a simple apparatus at a practicum scale. An experimental approach was employed with descriptive observations focusing on process duration and heating temperature characteristics. The conversion system was designed using simple components, consisting of a metal can reactor, a plastic hose as a gas outlet, a cooling system utilizing ice as the cooling medium, and a container for collecting condensed products. Plastic waste was heated using a stove as the heat source, and reactor temperatures were recorded at 10-minute intervals until the conversion process ended. The results showed that the reactor temperature increased gradually and reached a maximum of 360.1 °C, which falls within the active pyrolysis temperature range. From an initial plastic mass of 300 g, 6 g of liquid fuel was produced with a yield of 2%, along with 82 g of solid residue. The relatively low liquid yield indicates limitations in heat distribution and condensation efficiency within the simple system. Combustion tests demonstrated that the produced liquid fuel was able to burn stably for 3 minutes and 17 seconds with an orange-reddish flame, indicating the presence of combustible hydrocarbon fractions. This study demonstrates that plastic waste conversion into liquid fuel can be directly observed using simple equipment at a practicum scale, supporting energy conversion learning and providing a basis for further research with improved system design
The Assistance Quality, Farmer Characteristics, and Farmer Motivation Towards the Performance of Farmer Groups
Full text linkThe agricultural sector is vital in national economic development and the large contribution of farmer groups in increasing the effectiveness of farming businesses. However, the performance of farmer groups is still influenced by various factors, such as the quality of mentoring, farmer characteristics, and farmer motivation, which are not fully understood in depth, especially in Pitu Riawa District, Sidrap Regency. Therefore, this research aims to was to examine how assistance quality, farmer characteristics, and farmer motivation impact the performance of farmer groups in Pitu Riawa District, Sidrap South Sulawesi. The sampling method employed in this research was non-probability sampling using saturated sampling, which involved all farmers in 300 farmer groups from Pitu Riawa sub-district, Sidrap district. Data for this study were collected through a questionnaire and analyzed using Partial Least Square (PLS) software. The findings revealed that both the quality of assistants and farmer characteristics had a positive and significant influence on farmer motivation. Additionally, the quality of assistants and farmer characteristics also had a positive and significant impact on farmer group performance. However, farmer motivation only had a positive but insignificant effect on performance. Furthermore, the quality of assistants positively and significantly influenced farmer group performance through farmer motivation, whereas farmer characteristics had a positive but insignificant effect on farmer group performance through farmer motivation. The implications of the results of this study indicate that improving the quality of assistants and strengthening farmer characteristics are the main keys in encouraging farmer motivation and improving farmer group performance. Hence, it is recommended that farmer empowerment programs focus more on improving the competence of facilitators and developing the capacity of farmers through continuous training and coaching
Empowering Rural Livelihoods Through Bali Cattle Development in Tambrauw Regency West Papua
Full text linkThis study aims to develop alternative strategies for the advancement of the Bali cattle industry in Tambrauw Regency through the identification of critical internal and external factors influencing its growth. The research was conducted over a two-month period employing a descriptive approach, with data collection facilitated through quota, purposive, and cluster sampling techniques. Analytical tools utilized include the SWOT (Strengths, Weaknesses, Opportunities, and Threats) framework and the Quantitative Strategic Planning Matrix (QSPM). The analysis identified effective marketing mechanisms as the principal internal strength of the local cattle industry, while limited access to capital emerged as a primary internal constraint. From an external perspective, supportive government policies were recognized as key opportunities, whereas livestock theft and poaching constituted significant threats to industry sustainability. Strategic priorities derived from the SWOT-QSPM analysis encompass capital reinforcement, enhancement of production quality and quantity, improved access to markets and information, development of livestock production systems based on local resources, and institutional capacity building through strengthened collaborative networks and human resource development. The recommended strategic alternatives include increasing access to financial resources, expanding business operations, and improving production efficiency. These strategies are expected to contribute to the sustainable development of the Bali cattle industry in Tambrauw Regency.
The Impact of CPO Downstream Policy in Cooking Oil Industry on Indonesian Export Foreign Change
No full textCooking oil is one of the derivatives of Crude Palm Oil (CPO) food products, which plays an important role in life and the economy. Government policies downstream, such as changes in export taxes and increasing the production capacity of the downstream cooking oil industry, are designed to encourage the development of cooking oil production. This study employs an econometric equation model with simultaneous equations to: (1) analyze the factors affecting CPO demand by the cooking oil industry; demand and supply, as well as palm cooking oil exports (2) analyze the impact of changes in export taxes; increasing CPO production capacity and the combination of these policies on foreign exchange earnings from cooking oil exports. The findings indicated that changes in Indonesia’s CPO export tax reduced the volume of CPO exports globally but increased domestic CPO supply. Consequently, CPO prices declined, leading to higher demand from the downstream industry. Increased demand for CPO and higher production capacity in the downstream industry were expected to boost cooking oil production further
Greenhouse-Based Premium Horticulture Business Plan Design in Java: Business Model Canvas Approach
No full textEmbracing technologies and sustainable practices can lead to a competitive edge in horticulture. One of them is the use of greenhouses for premium horticultural cultivation. A business model is essential to highlight the competitiveness and sustainability of businesses. This study aimed to design a Business Model Canvas (BMC) of greenhouse-based premium horticulture business planning. The study starts from June–December 2024. It was conducted in six provinces on Java Island. There are thirty informants. The data used is primary and secondary data. Primary data was collected through questionnaires, in-depth interviews, observations, and focus group discussions. Secondary data is obtained from various sources of literature and company documentation. Data was analysed according to nine block of BMC. The BMC consists of nine blocks that explain the key elements of the business, which are: customer segments, value proportions, channels, customer relationships, revenue stream, key resources, key activities, key partnerships, and cost structure. The research results present the BMC elements that need to be noticed and carried out by greenhouse premium horticulture entrepreneurs in Java to make their business run well. It also can be a reference for investors who want to invest their capital in a premium horticulture business based on a greenhouse
Efforts Towards a More Anticipatory Design for Disasters in Housing and Landscape Planning
Full text linkIndonesia has a high risk of natural disasters, especially earthquakes and tsunamis along the coast. Since the 2004 tsunami in Aceh, there has been an increasing awareness of the need for housing and landscape planning that anticipates these disasters. Poor design and quality of housing and landscape environments often lead to fatal impacts when disasters occur, especially in areas where the environment is not responsive to surrounding conditions. This paper analyzes several planning aspects related to these conditions through theoretical and empirical approaches, particularly in residential environmental design and landscape. These conditions are derived from technological rules or principles. It is also expected that examples or lessons from other countries can contribute additional discourse to the writing. From analysis, findings that can be found and proposed are responses to the technological-physical aspects of buildings (i.e. safety and responsiveness), micro-scale housing and landscape design (i.e. building units, clusters, and variety of vegetation), housing and landscape planning at the macro-scale (i.e. land zoning and green proportions), as well as environmental support (i.e. environmental utility, accessibility, and protective landscape).
Walkability Analysis in Kauman and Notoprayan Villages, Yogyakarta
Full text linkThis study evaluates the level of walkability in the Kauman and Notoprayan Villages in Yogyakarta to support connectivity between Ngabean parking facilities and major tourist destinations, such as Alun-Alun Utara and Kauman Mosque. The analysis employs six walkability variables: shaped, connected, comfortable, safety, security, and interesting. Data were collected through field observations, measurements, and documentation, and were then quantitatively analyzed using a scoring technique. The findings reveal that the average walkability index of the area is 3.58, indicating good walkability quality. The "shaped" variable recorded the highest score of 4.19, categorized as good. However, the "comfortable" variable received the lowest score of 2.96, reflecting the lack of supporting amenities such as shade, seating, and trash bins. Several outer roads require improvements in comfort, safety, and attractiveness. This research contributes significantly to urban kampung planning by providing design- and regulation-based recommendations to enhance the quality of pedestrian pathways, strengthen connectivity, and support a sustainable tourist experience
Aplikasi Alat Bantu Mesin Bubut untuk Pengerjaan Spinning
Full text linkThe potential, opportunities, and advantages of Banaran Village, Cepogo District, Boyolali should serve as capital and driving force in driving a people's economy based on local wisdom and national orientation. In addition to promoting the metal carving industry sector, other potentials and advantages of Banaran Village, Cepogo, Boyolali include highland agriculture, historical heritage, arts and culture, natural scenery, reservoirs/reservoirs, and service potential. The solutions implemented in this activity are principally based on the potential and constraints faced by partners, especially Tumang Village, Banaran, Cepogo District, Boyolali. The relatively large and labor-intensive potential of small and medium industries in Tumang will be encouraged to open themselves to the potential of the accompanying economy in addition to the main sector, namely copper carving products and the like, by implementing lathe-based spinning machines covering education, arts and culture, tourism, agriculture, and other superior economic products. In addition, these potentials, opportunities, and advantages will be encouraged with good management and governance patterns so that community movements can also stimulate the economic movements of the surrounding communit