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Fera Meilia Ananda Putri; Masnia Ningsih; Ratnaningrum Zusyana Dewi

Filosofi : Publikasi Ilmu Komunikasi, Desain, Seni Budaya 2024 Asosiasi Seni Desain dan Komunikasi Visual Indonesia

Movies always construct how reality happens in the real world, many things can be constructed and discussed in a film, one of which is about liberal feminism, liberal feminism is a view to place women to have full and individual freedom. This research will discuss how the construction of liberal feminism reality in the Barbie (2023) movie by Greta Gerwig. The purpose of this study is to find out how the construction of liberal feminism reality is depicted in the Barbie (2023) movie by Greta Gerwig. The research method used in this study is a qualitative research method using a content analysis approach. By referring to the theory of liberal feminism, this study produces a conclusion about the existence of a scene about liberal feminism, precisely about the freedom of women to do anything in their lives such as the freedom to achieve dreams, the freedom to be a leader, the freedom to do good, the freedom to fight oppression, the freedom to get happiness, and the freedom to receive awards which are part of the construction of the reality of the world today. The construction of reality appears in a Barbie movie because the director of this Barbie movie wants to show how the state of the world now often makes all women feel threatened and not free to do anything according to their wishes, besides that through this movie the director of the movie wants that there will be no more injustice or unfreedom for women. The implications that occur here can certainly make the audience who has watched this movie can treat anyone, especially women, well, namely giving justice and freedom wherever they are and the audience can understand that the movie is created from the existing reality, then neatly constructed into a movie by presenting a moral message that is useful for anyone.

Fadli, Feri

Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri 2024 Asosiasi Riset Ilmu Teknik Indonesia

This research aims to analyze the scheduling of the fiber optic network construction project in Lemo-Lemo, Bulukumba, using the Critical Path Method (CPM). This method was chosen to improve time and cost efficiency in project implementation. Research data were obtained through field observations, literature studies, and interviews with related parties. Analysis was carried out by mapping project activities, estimating duration, and calculating resource requirements and project costs. The results showed that the application of the CPM method was able to accelerate project completion from the initial estimate of 40 days to 21 days, with time savings of 19 days. In addition, the project cost which was initially estimated at Rp. 38,386,680 was successfully reduced to Rp. 37,000,000, resulting in a savings of Rp. 1,386,680. In conclusion, the CPM method proved to be effective in improving time and cost efficiency in fiber optic network construction projects. Therefore, it is recommended that this method be applied consistently in similar projects in the future.

Shelly Rasyta Ananda; Anindya Putri; Nabila Mauldy Erwanto; Nessa Dila Arifqi; Citrawati Nur Feby Dinata +4 more

Jurnal Kemitraan Masyarakat 2024 Lembaga Pengembangan Kinerja Dosen

The Community Service Program (KKN) implemented by universities in district or city areas is expected to provide change, sustainable development and have benefits for the community. In Group 2 KKN in Ringinanom Village, Tempuran District, Magelang Regency, several quality work programs have been implemented, one of which is the adiwiyata program which can be used to form and increase awareness of the people of Bedilan Hamlet and students of MI Al-Islam Ringinanom about the importance of protecting the surrounding environment. hamlets and school environments. The Adiwiyata program is carried out using a Participatory Rural Appraisal (PRA) approach. This service was carried out to overcome problems in the environment around the hamlet and school which looked dirty and unkempt, so that the service carried out by Ringinanom Village KKN Group 2 has provided a solution to overcome existing problems through the adiwiyata program and activities that have been implemented. The Adiwiyata program that has been implemented has provided results such as making the environment of Bedilan Hamlet and MI Al-Islam Ringinanom cleaner and appearing free of plastic waste strewn on the side of the road, as well as gutters full of wild plants now looking clean so they will not cause water blockages when it rains. The construction of gates and road signs which initially did not exist in Bedilan Hamlet have now been neatly installed as a manifestation of the construction of facilities/infrastructure carried out by Group 2 of the Ringinanom Village KKN. Based on the activities that have been carried out at MI Al-Islam Ringinanom and with some knowledge about the importance of protecting and preserving the environment, students are now more active in carrying out cleanliness pickets so that the activities with Group 2 of the Ringinanom Village KKN make students accustomed to keeping the classroom and school environment clean

Ahmad Rizky Zaidan; Koosdaryani Soeryodarundio; Setiono Setiono

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2024 Asosiasi Riset Ilmu Teknik Indonesia

The construction of a high-rise building is a construction project that can be said to have high risk factors so that it will have a negative effect on the project schedule, quality, and costs needed. Project risk management analysis is needed to control risks and to determine risk handling to prevent the occurrence of dominant risks in construction projects. In this study, primary data collection was carried out by distributing questionnaires, while secondary data was obtained through data from projects and literature studies. The data obtained from the questionnaire will be analyzed for risk variables using the Severity Index (SI) method. Meanwhile, the risk level analysis uses the Probability Impact Matrix (PIM). The results of the analysis show that there is a dominant risk that has the most influence on the time aspect is the risk of delay in material delivery with a high level of risk. The dominant risk that has the most influence on the cost aspect is the occurrence of equipment damage while working with a medium risk level. The dominant risk that has the most influence on the quality aspect is that the quality of the material is not in accordance with the quality specifications with a medium risk level.

Ashar Bakri; Muh. Nashir. T; Adnan Adnan

Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil 2024 Asosiasi Riset Ilmu Teknik Indonesia

The construction of the Parepare City Twin Bridges resulted in increasing vehicle volumes and the occurrence of traffic jams which resulted in obstruction of traffic flow or congestion. The aim of this research is to determine the existing conditions, performance of intersections and road sections and their handling. The type of research used is quantitative, with the data collection method carried out (survey) and the data analysis used is MKJI 1997. The results of this research show that the existing condition of the intersection and road sections in segment 1 is at level of service (LoS) B, segment 2 v/c ratio is at level of service (LoS) A, and segment 3 v/c ratio value is at level of service (LoS) A. The performance of intersections and roads in Segment 1, namely Jl. The peak hour for the Makassar-Parepare axis is 16.00-17.00 (afternoon) Monday, the traffic flow value (Qtot) is 1812.5 pcu/hour, the saturation degree (DS) value is 0.21. Segment 2 is Jl. Gen. M. Yusuf and Jl. Arung Mampi peak hours are 16.00-17.00 (afternoon) on Mondays. The traffic flow value (Qtot) is 262.7 pcu/hour, the degree of saturation (DS) value is 0.05. The handling is installing traffic signs; installation of warning lights or traffic lights.

Ali Masrodin; Albani Musyafa; Fitri Nugraheni; Taufik Dwi Laksono

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2024 Asosiasi Riset Ilmu Teknik Indonesia

The Kediri Airport development project encountered challenges related to underground ducting work. The design of Kediri Airport adheres to international standards, which led to the use of materials not readily available in Indonesia, specifically pipes and duct spacers. Duct spacers are tools used to arrange ducting pipes according to their formation and prevent them from floating during concrete pouring due to buoyancy. The SKEP/114/VI/2002 serves as a reference for underground cable installation, involving direct burial of cables at a depth of 70 cm, covered with a 5 cm layer of sand above the cable surface. These two approaches significantly differ, necessitating problem-solving solutions. To address this issue, research was conducted to find suitable duct spacers in Indonesia. Two alternative materials were considered: PVC and lightweight hollow steel. The study compared costs and time associated with these materials. PVC duct spacers would be imported and be fabricated in Indonesia, while hollow steel duct spacers would be fabricated on-site. The research focused on three aspects: ducting work methods, duct spacer design, and cost-time analysis. Given tight installation spaces and busy schedules, duct spacers needed to be compact, simple, and adaptable to various pipe formations. The design for hollow steel duct spacers aimed for simplicity to reduce on-site construction work. However, care was taken to avoid potential injuries from exposed bolts on the hollow steel frame. The PVC duct spacer design utilized Polytam PF 1000 material, with a nominal shear strength of 399 kg and a nominal moment of 266 kg·cm—sufficient to withstand saturated soil loads up to 162 cm but not vehicular loads. Analyzing procurement time, PVC duct spacers from Indonesian manufacturers were the quickest, taking only 56 days due to no port clearance delays. The fastest completion time for the project was achieved using PVC duct spacers, taking 122 seconds—three times faster than hollow steel duct spacers. While lightweight steel was the most cost-effective option for on-site procurement, combining cost and time analysis favored PVC duct spacers. The minimal cost difference allowed for accelerated production, minimizing the risk of delays    

Suba’ida Suba’ida; Ria Kasanova

Jurnal Yudistira : Publikasi Riset Ilmu Pendidikan dan Bahasa 2024 Asosiasi Riset Ilmu Pendidikan Indonesia

This study analyses the use of assertive illocutionary acts in TikTok news produced by Liputan 6 SCTV and explores the news construction strategies within this short video format. In the current digital era, social media platforms such as TikTok play an increasingly important role in information dissemination, particularly among younger and more dynamic audiences. Assertive illocutionary acts, which function to convey information with firmness and confidence, are effectively used in TikTok news to ensure that the messages communicated are clear and unambiguous. This research employs a qualitative approach, using data collection techniques including observation and content analysis, as well as interviews with relevant journalists. The findings reveal that Liputan 6 SCTV utilises engaging visual elements and concise narratives to deliver news effectively within the constraints of short video formats. While this strategy enhances audience engagement, it also presents challenges related to the limited space for in-depth explanation. Comparisons with previous studies indicate that although the approach on TikTok aligns with modern communication trends, there are significant differences in news delivery techniques compared to other platforms such as YouTube or Instagram. This research contributes to illocutionary theory and social media studies by providing insights into the adaptation of language and news format within the dynamic context of social media. Recommendations for future research include exploring the use of illocutionary acts on other platforms and applying mixed-methods approaches to gain a more comprehensive understanding.

Orie Andriyanto; M. Soerya Respationo; Erniyanti Erniyanti; Ramlan Ramlan; Dahlan Dahlan

IJLS (International Journal of Law and Society) 2024 Asosiasi Penelitian dan Pengajar Ilmu Hukum Indonesia

The Sea and Coast Guard Base (PLP) plays a vital role in maintaining maritime security and safety in Indonesia, especially in strategic waters such as the Riau Islands. However, the implementation of the PLP's authority in carrying out its duties at the Tanjung Uban Class II PLP Base has not run optimally. This study aims to analyze the authority of the PLP from a juridical and sociological perspective, as well as identify the obstacles faced and provide recommendations to overcome them. The research methods used are normative juridical and empirical sociology. The normative juridical method is used to analyze various laws and regulations that are the legal basis for the authority of the PLP, such as Law Number 17 of 2008 concerning Shipping, Regulation of the Minister of Transportation of the Republic of Indonesia Number PM 119 of 2021 concerning the Organization and Work Procedures of Marine and Coast Guard Bases, Decree of the Director General of Hubla Number 13/VIII/DV-05 of 2005 concerning the Working Area of Marine and Coast Guard Bases and the Decree of the Director General of Sea Transportation Number KP.867/DJPL/2020 concerning the Patrol of the Marine and Coast Guard Unit of the Directorate General of Sea Transportation. Empirical sociological methods are used to collect data through interviews and direct observations in the field to understand the implementation of PLP authority and the obstacles faced. The results of the study show that limited human resources and equipment, lack of coordination between agencies, inadequate infrastructure, and complex bureaucracy are the main obstacles in the implementation of PLP authority in the Tanjung Uban Class II PLP Base. In addition, the low legal awareness among the maritime community is also a significant challenge. Based on these findings, this study provides several suggestions, including increasing recruitment and training of personnel, procurement and maintenance of patrol boats and supporting equipment, the formation of an inter-agency coordination team, the construction of adequate port facilities, and socialization and education to increase public legal awareness. This research is expected to contribute to strengthening policies and strategies for the implementation of PLP authority, so as to be able to increase effectiveness and efficiency in maintaining maritime security and safety in Indonesian waters.

Andi Yasril Ananta Muliyadi; Hamsyah Hamsyah; Muh. Jabir M3; Adnan Adnan

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2024 Asosiasi Riset Ilmu Teknik Indonesia

Increased economic growth in the city of Parepare with the presence of buildings around the estuary. In general, the composition of concrete making materials is taken from good materials. The problem encountered in the field is that the quality of concrete in construction decreases due to brackish water, causing structural elements in the construction to become porous. Meanwhile, preventive measures are rarely or never taken. As a result, the construction life is very short. Brackish water is one of the causes of structural failure. This is due to the content of sulfate and chloride ions in water containing salt/salts that react with chemical elements in reinforcing steel resulting in corrosion of the reinforcement. The purpose of the study was to analyse the compressive strength of concrete with a mixture of clean water against the percentage of brackish water with a maintenance age of 7, 14, 21, and 28 days. The results showed that brackish water had an impact on reducing the compressive strength of concrete due to the high chemical content in brackish water such as Sulfate (SO²¯) of 52.5 in brackish water in Kenjeran and 62.5 in brackish water in mangrove. Dissolved Solids (TDS) of 15188 mg/l in kenjeran brackish water and 3436 mg/l in mangrove brackish water. Organic Content (KMnO) of 8.05 mg/l in kenjeran brackish water and 6.69 mg/l in mangrove brackish water is too high, so the chemical content contained in brackish water can damage the compounds in the cement content and decrease the strength of the materials contained in the concrete. In this case it can result in concrete having a very low durability.

Fauzy Kurnain; Wibowo Wibowo; Endah Safitri

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2024 Asosiasi Riset Ilmu Teknik Indonesia

Currently, infrastructure development is a priority of the Indonesian government which aims to improve the quality of life of the community and equitable distribution of infrastructure development. The need for concrete material as a construction material also increases in line with the increase in infrastructure development. The use of recycled aggregate materials, especially granite waste, is a promising option in sustainable infrastructure development. This study was conducted with the aim of knowing the effect of partial substitution of coarse aggregates using granite waste variations on the binding time and permeability of concrete. Experimental method was chosen in this research. The levels of granite waste used were 0%; 15%; 30%; and 45% by weight of coarse aggregate or gravel. The test specimens used for the concrete bond time study were fresh concrete poured into cube molds measuring 20 cm x 20 cm x 20 cm with a minimum height of 15 cm. Testing concrete bond time using a penetrometer tool. The test specimen for concrete permeability is a cube measuring 15 cm x 15 cm x 15 cm, totaling 12 pieces and tested with a Permeability Test Apparatus (Water Permeabilty Apparatus).The results showed that partial substitution of coarse aggregate with granite waste variation did not affect the setting time of concrete up to a certain level. Based on the results of the research conducted, the initial setting time and final setting time values of 0%, 15%, 30%, and 45% granite content variations fluctuate and the coefficient of determination (R2) value in linear regression is only 0.5 and 0.3. Partial replacement of coarse aggregate with granite waste has an effect on the impermeability of concrete which meets the requirements for medium aggressive impermeable concrete. Water pressure of 5 kg/cm2 for 72 hours applied to the concrete partial replacement of coarse aggregate with granite waste variation resulted in permeability coefficient values of 4.11 x 10-12 cm/s; 3.48 x 10-12 cm/s; 2.17 x 10-12 cm/s; and 3.25 x 10-12 cm/s. The minimum coefficient value of concrete with partial substitution of coarse aggregate with granite waste is obtained at 30% by weight of coarse aggregate. Granite, whose specific gravity is greater than gravel, produces denser and more water-resistant concrete.     

Muhammad Fahri Faqihhuddin

Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim 2024 Fakultas Teknik Universitas Maritim AMNI Semarang

In the construction industry, management costs and construction project time are important factors for achieving project success. Cost overruns and time delays can result in significant financial losses for project owners and contractors. Therefore, it is important to adopt an effective approach to construction management to optimize project costs and time. One method for overcoming problems in achieving construction project cost and time targets is the Time Cost Trade Off (TCTO) method. The TCTO method is an approach used in construction project management to achieve a balance between project costs and time. The analysis results show that the FO Krian Development Project, which has a normal duration of 522 days, can be accelerated to 500 days (scenario 1) and 498 days (scenario 2). Direct costs tend to increase due to additional working hours and additional workforce. The alternative used or which is more profitable in completing the project is to use scenario 2, namely additional labor due to a decrease in duration of 24 days from the normal project time and experiencing a decrease in total project costs of IDR 292,008,708.16.

Farhan Nuraziz; Wibowo Wibowo; Endah Safitri

Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim 2024 Fakultas Teknik Universitas Maritim AMNI Semarang

Concrete is one of the most common construction materials used throughout the world. Concrete consists of three main components: cement, coarse aggregate, and fine aggregate. Coarse aggregate serves as the main structural component in concrete, providing strength and resistance to external loads. Currently, technological advancements in construction are rapidly progressing. Therefore, innovation in concrete production is necessary, one of which is recycled aggregate concrete. The aim of this research is to determine the effect of using granite waste as a partial substitute for coarse aggregate on toughness of concrete. The method used in this research is experimental method. In this study, the variation level of granite waste used in this study was 0%; 15% ; 30% ; and 45%. The objects used for this research are blocks with dimensions of 400x100x100 mm tested using a Universal Testing Machine. The results of this research show that the toughness value obtained from the results of toughness testing on concrete with varying levels of 0% granite waste; 15% ; 30% ; and 45% respectively, namely 1.9589 kNmm; 2.2362 kNmm; 2.4189 kNmm; and 2.2118 kNmm.

Yuni Purnama Syafri; Barkhia Yunas; Juwita Wirta Sri Devi; Hanafi Malik

Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim 2024 Fakultas Teknik Universitas Maritim AMNI Semarang

Based on the Regulation of the Minister of Public Works and Public Housing of the Republic of Indonesia Number 14/PRT/M/2015 concerning Criteria and Determination of Irrigation Area Status, Tanah Datar Regency has 635 regency Irrigation Area authorities with a total Irrigation Area of ​​29,437 Ha. Over the last 5 years, the Tanah Datar Regency Government, especially the PUPR and Land Services Department, has allocated funds both from the APBN (DAK) and from the APBD (DAU) for the construction and rehabilitation of irrigation networks as well as improving irrigation networks, with the result that the irrigation conditions in Tanah Datar Regency are in good condition. good by 56.69%, in other words as many as 379 irrigation areas which were only in good condition were maintained in poor condition. The aim of this research is to determine the factors of irrigation maintenance and upkeep operations in Tanah Datar Regency by looking at six aspects of irrigation network maintenance and rehabilitation. The method used in this research is a qualitative descriptive method. Primary data was taken through interviews with informants from the Public Works and Spatial Planning and Land Service of Tanah Datar Regency, Tanah Datar Regency in the Water Resources sector, namely the Sub-coordinator of the Tanah Datar Regency irrigation Maintenance Operations. The research results show that there are 2 (two) factors that influence Irrigation Operations and Maintenance, namely (1) Condition factors of physical infrastructure and supporting facilities, (2) Personnel and institutional organizational factors of P3A.

Nur Aini; M. Sudirman

Jurnal Ilmu Hukum Sosial dan Humaniora 2024 Lembaga Pengembangan Kinerja Dosen

The many land problems require a significant role from the regional government to create legal certainty regarding the existence of Land Certificates in Belitung Regency. The research method used in this writing is a normative juridical research method using a Statutory Approach and a Conceptual Approach. The data used is secondary data consisting of primary legal materials, secondary legal materials and tertiary legal materials. For data analysis using Legal Interpretation Techniques and Legal Construction Techniques. The results of this research show that until now there has been no regulation or legal product governing Land Certificates in Belitung Regency, so clear regulations are needed regarding the existence of these Land Certificates in order to create legal certainty and reduce land problems and disputes.

Sri Kamariyah; Nur Rusydina bt Khadzali; Aris Sunarya; Nihayatus Sholichah; Widyawati Widyawati

Journal of Administrative and Sosial Science (JASS) 2024 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

This research aims to analyze the determination of the internalization of BerAKHLAK work culture in constructing apparatus integrity within the Social Services Department of East Java Province. In the context of modern bureaucratic transformation, Civil Servants (ASN) are required to have a strong work culture foundation as a moral compass to avoid practices that deviate from professional ethics. The Social Services Department possesses unique characteristics as it interacts directly with vulnerable social groups, necessitating personnel with unwavering integrity and moral immunity against the temptation of abusive authority. Utilizing a qualitative descriptive approach with a case study design, this research dissects the phenomenon of value internalization holistically through in-depth interviews, observation, and documentation. The results indicate that the internalization process of BerAKHLAK (Service-Oriented, Accountable, Competent, Harmonious, Loyal, Adaptive, and Collaborative) is carried out through a social construction dialectic encompassing stages of externalization, objectification, and internalization. Phenomenological findings suggest a paradigm shift from formalistic integrity toward substantive integrity, where values ​​such as Accountability and Loyalty are no longer viewed merely as regulatory burdens but as manifestations of moral responsibility rooted in individual conscience. The habituation process through routine actions, such as consistently precise data verification, has created an "ethical sedimentation" that transforms honest behavior into an instinctive or automatic self-governing action. Furthermore, the Harmonious and Collaborative dimensions have successfully established peer-supervision mechanisms and a collective social identity that strengthens the organization's moral fortress through collective social shame against deviations. The integration of Competent and Adaptive values ​​also proves to be a primary determinant in mitigating ethical risks, where technical professionalism encourages personnel to remain transparent despite complex field pressures. Overall, the internalization of BerAKHLAK work culture has successfully reconstructed the integrity of the East Java Social Services apparatus into a stable social reality, which not only transforms work methods but also builds public trust through quality and equitable service.

Abbas Abdulameer Khalaf

Jurnal Manuhara : Pusat Penelitian Ilmu Manajemen dan Bisnis 2024 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

The construction sector is currently undergoing significant changes as a result of the adoption of digitaltechnologies. The utilisation of Building Information Modelling (BIM) has garnered considerable interest in recentyears from scholars and industry experts. The sector has seen major changes as a result of its rising success. Giventhese changes, the traditional knowledge and skills possessed by project specialists or managers seem insufficientin properly supervising the new information component of construction project management. As projects advance,the inclusion of new roles such as BIM managers, BIM coordinators, BIM modellers, and information managers isbecoming crucial to meet the demand for enhanced capabilities. Multiple studies have analysed these novel rolesfrom a theoretical perspective, but have not investigated their correlation with conventional roles in projectmanagement, nor have they explored how project managers and BIM specialists position themselves in relation tothe overall processes outlined in the BIM implementation guides. This case study illustrates that the duties of BIMspecialists varied among various fields and go beyond solely technical assignments. Moreover, the informationsub-process predominantly focuses on BIM managers, leading to the establishment of two distinct sources ofleadership within a project: BIM managers and project managers. According to the poll, professionals believe thatthe BIM collaboration methods described in the BIM implementation plan and project documents are too general.Moreover, there is always a difference between specified methods and the ones actually used in the project.

Khairunissa Aura Fatimah; Sellya Saraswati Dewi; Ayu Awalinda Khoirun Niswati; Dewi Nawang Wulan; Siti Nur Arifatun Nissa +1 more

Jurnal Kajian Ilmu Sosial, Politik dan Hukum 2024 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

The study focuses on the construction conflict of the Bendungan Bener in Desa Wadas. The aim of the study is to provide an overview of the Desa Wadas community as well as to analyze the conflict taking place using conflict theory by Ralf Dahrendorf. This research is carried out using a qualitative approach that aims to provide a description of the theoretical analysis of a phenomenon in a holistic and in-depth manner. Research data is obtained using documentation study techniques and library studies supported by relevant sources. Based on the analysis of Ralf Dahrendorf's conflict theory, the results of this study explain that the Bendungan Bener construction conflict is an inter-class conflict in which the society as an impotent group is harmed and the government as a powerful group has hidden interests. This research can have implications both internally and externally. Internally, this research can be research material for researchers in analyzing inter-class conflict in society. Externally, it can be a reference for relevant parties who have the same subject of research.

Junaidi Junaidi; Agus Sujatmiko

Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer 2024 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

PT Swadaya Graha is a company that works in the field of construction, fabrication and steel manufacturing. One of the machines used in carrying out its operational activities is the Baoji 1660A lathe. The lathe often fails during the production process. This study aims to determine critical components, critical component reliability values, maintenance scheduling intervals and maintenance cost estimates of the Baoji 1660A lathe using the Reliability Centered Maintenance (RCM) method. The results of this study show that the electrical system with an RPN value of 240, v-belt with an RPN value of 168, and gearbox with an RPN value of 60 as critical components. The reliability value of the electrical system approaches 0.5 at a time interval of 640 hours or 80 working days, the reliability value of the v-belt approaches 0.5 at a time interval of 208 hours or 26 working days, and the reliability value of the gearbox approaches 0.5 at a time interval of 384 hours or 48 working days. From the scheduling interval, the estimated total maintenance cost in 2025 is IDR 7,019,092, in 2026 is IDR 3,615,386, in 2027 is IDR 4,187,484, in 2028 is IDR 4,276,752, and in 2029 is IDR 3,615,386.

Diajeng Derrissyifa Salvia; Wibowo Wibowo; Endah Safitri

Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil 2024 Asosiasi Riset Ilmu Teknik Indonesia

The development of concrete making technology has developed rapidly nowdays, the innovations in terms of material use and workmanship. The implementation of construction work carried out today pays attention to aspects of strength, rigidity, and high durability, as well as sustainability. To support these two things, research can be carried out on making concrete using granite waste. The research method used in this study is an experimental method. The concrete mix design uses variations of granite waste with successive levels of  0%, 15%, 30%, and 45%. The test specimen used for tensile strength testing is cylindrical with a diameter of 15 cm and a height of 30 cm, the test uses 12 specimens where each variation uses 3 specimens. The test is performed when the specimen has reached the age of 28 days. The test specimen tested has met the planned compressive strength requirements at a concrete life of 28 days where the results are greater than 20 MPa. Results of testing the tensile strength of concrete variations of granite waste as a partial substitution of coarse aggregate with variations of granite waste of 0%, 15%, 30%, and 45% respectively; 2.43 MPa; 2.50 MPa; 2.97 MPa; and 2.78 MPa.

Dinda Putri Zulfira; Desi Fitriana; Nurjannah Berutu; Nurul Mayanti Fitri; Nurmasyitah Nurmasyitah

Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam 2024 International Forum of Researchers and Lecturers

A simple thermal waste generator is a promising solution for managing waste and generating electricity. This study aims to design and develop the tool. Through waste composition analysis, thermal design planning, prototype construction, and tool performance testing, we succeeded in creating an effective prototype. In performance testing, this tool is able to generate enough electrical power to meet daily energy needs on a small scale. Thus, this simple thermal waste power generator shows potential as an effective and environmentally friendly solution. Nevertheless, further research is needed to improve the efficiency and scalability of the tool, as well as to optimize the management of the residue from burning waste.