UMA - Open Access Journals (Universitas Medan Area)
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Analysis of Recommendation System on Travel Platform Using Content-Based Filtering and Collaborative Filtering Algorithms at PT. Angkasa Tour & Travel
Get PDFThis study aims to evaluate the effectiveness of the recommendation system on the PT Angkasa Tour & Travel travel platform using content-based filtering and collaborative filtering algorithms. The background of the identified problem is the need to improve the accuracy and relevance of recommendations in the travel platform, which functions to assist users in choosing travel services that suit their preferences. This research method includes an analysis of the application of the content-based filtering algorithm that focuses on the characteristics of individual users and products, as well as the collaborative filtering algorithm that utilizes collective user behavior patterns. The results of the study indicate that content-based filtering is effective in providing recommendations based on specific user preferences and product attributes, while collaborative filtering is able to produce recommendations based on collective user behavior patterns. This study also reveals that the combination of the two approaches can improve the accuracy and relevance of recommendations, thus better meeting user needs. The conclusion of this study is that the integration of content-based and collaborative filtering in the recommendation system can provide a more comprehensive solution to meet user preferences and needs on the PT Angkasa Tour & Travel travel platform
The Influence of Operational Conditions on the Cold Test of CFB Boiler for Fluidization Process Using Air Cap Bell-Type
Get PDFFluidization is a method of contacting solid particles with a fluid so that they exhibit fluid-like properties. One industrial application of fluidization is the fluidization process in power plants using Circulating Fluidized Bed (CFB) boilers where air is blown from the bottom as coal is burned to keep it suspended above the furnace. The variations used were air flow rates of 32,09; 62,72; 91,89; 123,98 and 154,61 m3/hour, bed material heights of 20; 30 and 40 cm, and types of bed material of coal and silica sand. This research aims to investigate the effects of changes in primary air flow, bed height, and type of bed material in the bed on fluidization behavior in CFB using an air cap bell-type through cold testing for easier observation. The results of this research show that at an air flow rate of 154,61 m3/hour and a bed material height of 40 cm, the highest pressure drop was obtained. For silica sand and coal, the pressure drops were 3,51 and 1,11 kPa, respectively. For the silica sand bed material, various fluidization phenomena were observed, while for coal, only the fixed bed phenomenon was observed
Bioenergy Industry Management Challenges and Opportunities in the Energy Transition Era
Get PDFThe era of global energy transition has positioned bioenergy as a critical component in diversifying renewable energy sources. This study aims to analyze the implementation of bioenergy industry management in the context of energy transition, with a focus on the development of an integrated risk management framework and operational optimization. Through a systematic literature review (SLR) approach to publications from the 2019-2024 period from the Scopus, Web of Science, Science Direct, and ProQuest databases, this study integrates findings from 247 selected articles. The results of the analysis show a significant increase in operational efficiency of up to 45% through the implementation of an integrated risk management framework, including a real-time monitoring system and an AI-based decision-making platform. The financial impact analysis reveals a reduction in OPEX of 34.4% and an increase in CAPEX ROI from 15.3% to 22.8%. From an environmental perspective, the implementation of the framework has succeeded in reducing CO2e emissions by 36.5% and water use by 25%. This study identifies four main challenges in implementation: technology gaps, supply chain complexity, immature regulatory frameworks, and the need for human resource development. The developed framework integrates technical, economic, and social aspects, providing practical guidance for the industry in the transition to sustainable bioenergy. This research contributes to the development of theoretical framework and practical guidelines for bioenergy industry management, while opening up new research opportunities in the integration of blockchain, IoT, and advanced AI technologies for operational optimization. The results show that continuous evolution in the management approach of the bioenergy industry is key to realizing an effective and sustainable energy transition
Etika Notaris di Media Sosial Ketika Profesionalisme Dipertaruhkan
Get PDFNotary professional ethics in the use of social media, which is increasingly relevant in the digital era. As a profession that prioritizes integrity and confidentiality, notaries are faced with new challenges related to the misuse of social media that can damage their reputation and professionalism. This study aims to analyze the impact of ethical violations committed by notaries on social media, both on personal reputation, legal sanctions, and public trust in the notary profession as a whole. The methods used in this study are literature studies and case analysis. The results of the study indicate that ethical violations on social media can reduce the credibility of notaries, cause loss of clients, and damage the image of the profession. This study also found that although there are regulations that govern it, the implementation of professional ethics in the digital realm still requires more attention from the Honorary Council of the Indonesian Notary Association (INI) to maintain the professionalism and integrity of the notary professio
Penerapan Konsep Neo-Vernakular pada Desain Atap Amorty Billiards Indonesia di Kota Malang
Get PDFThis study explores the application of neo-vernacular architectural concepts to the roof design of the Amorty Billiards Indonesia building in Malang City. Neo-vernacular architecture is included in an approach that blends traditional local characters with modernity, using local materials and culture. The research method used in this study is a qualitative method through direct observation and documentation. The results of this research show that building roofs using clay tiles provide coolness and weather resistance even though they require regular maintenance. The Joglo Lawakan roof shape was chosen to add aesthetic and symbolic value to Javanese culture. This combination creates a classic and modern impression, enriches the aesthetics of the building and supports the preservation of local cultural values. This research concludes that the Implementation of Neo-vernacular architecture on the Amorty Billard roof has a positive impact on the environment and maintains traditional values in a modern architectural context
Pengaruh Lahan Berkontur pada Penataan Massa Hotel Golden Tulip Resort
Get PDFBatu City is one of the cities in East Java that has a wealth of tourism so it is not surprising that many accommodation buildings such as villas, hotels, and resorts stand on uneven surfaces because most of the Batu city contours have a slope of 25-40% to more than 40%. The purpose of this research is to find out the planning of the mass arrangement of resort hotels, the influencing aspects, and the ways in which development risks on contoured land can be overcome for the convenience and resilience of the building area. The research method used is descriptive, and data is collected through observation, documentation, and literature study. The object of this research is the Golden Tulip Resort Hotel in Batu City. The results of this study are that the mass arrangement in the building area is influenced by the slope of the land or topography on the site and the achievement of circulation. The placement of the building mass is arranged according to the different elevations on the land and the zone's needs. Although it has contours on the land, the design response given, such as stairs connecting each building, succeeds in providing visitors with comfort in accessing its achievements
Kajian Pendekatan Arsitektur Hijau pada Terminal Intermoda Joyoboyo
Get PDFTransportation is an attempt to move people and goods from one place to another. The development of transportation in Indonesia itself is quite good, the various modes of transportation that exist must be accompanied by adequate facilities such as bus terminals. The bus terminal as a control center for bus vehicles certainly requires a large amount of energy to operate. Coupled with the large number of vehicles, the bus terminal has a fairly high air pollution rate. To overcome this problem can be done by implementing green architecture in designing bus terminals. By applying the principles of green architecture according to Brenda and Robert Vale, the problem of energy and air pollution at the terminal can be overcome. One of the terminals that has implemented green architecture is the Joyoboyo Terminal in Surabaya. The purpose of this research is to analyze existing green architecture principles to determine the effectiveness of green architecture in overcoming energy efficiency and air pollution problems at the terminal. Using a descriptive qualitative research method, it was found that the Joyoboyo Terminal building has implemented and integrated the six principles of green architecture according to Brenda and Robert Vale into the building design properly. These six principles alone are able to overcome problems of energy efficiency and air pollution very well so as to provide comfort to building users
Perpustakaan Umum di Kota Panyabungan dengan Pendekatan Arsitektur Neo Vernakular
Get PDFThe design of this Public Library is motivated by the lack of public library facilities in the Mandailing Natal Regency, particularly in the Panyabungan District and its surroundings. Despite being an area experiencing growth in education and the economy, there is a significant need for a library in this region for the benefit of the community, students, and scholars. This final project aims to address this issue by proposing the design of a one-phase public library in the Panyabungan District of the Mandailing Natal Regency. The design methodology employed for this project is the neo-vernacular architectural approach. The chosen design location was determined through surveys and personal data analysis to support the planning of the Mandailing Natal Regency Public Library in the city of Panyabungan. In this design, the extensive work on the Mandailing Natal public library is guided by the transformation of traditional Mandailing houses. Given the uniformity of the surrounding buildings, the goal is to create an attractive structure that can become an iconic landmark within the environment. Neo-vernacular architecture is a design approach that prioritizes environmental considerations
Penerapan Arsitektur Metafora dalam Perancangan Gedung Olahraga Bola Basket di Deli Sport City Sumatera Utara
Get PDFThis article aims to design a basketball sports hall in Deli Sport City North Sumatra that meets international standards by applying the theme of metaphor architecture. The design is focused on architectural aspects, including the arrangement of sports arenas and supporting facilities. This approach involves searching for ideas through various sources of information about the architectural data of basketball sports buildings and applying metaphorical themes as a solution in designing design ideas that are realized in the form of drawings. Metaphor architecture in the design of basketball sports buildings uses concepts or elements that refer to something familiar or symbolic to create visual and emotional appeal for visitors, and the approach applied is a shape or design element that resembles a basketball or part of a basketball game, such as the line pattern on a basketball, the shape of a net, It gives a dynamic impression and directly connects the building with its function
Pendekatan Prinsip Desain Norman Foster pada Perancangan Hotel Bintang 5 di Kota Medan
Get PDFMedan City, known as the gateway for tourists heading to North Sumatra, is currently experiencing rapid development that attracts the interest of many people and investors, both for tourism and business purposes. Besides serving as temporary accommodation for tourists, hotels also play an essential role as facilities for commercial business meetings, offering services and accommodations. When designing a hotel, two crucial aspects must be considered efficiency and comfort. The design process involves specific methods that assist designers in developing their ideas. For the design of a hotel building in Medan City with a Norman Foster architectural approach, a descriptive analysis method is used. This method involves the exposition of natural phenomena and surrounding issues. Descriptive analysis aims to depict and explain phenomena without intervention. This process includes the collection, organization, and presentation of data in a narrative or descriptive manner