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Ainurrahman, Mochammad Firza; Ainurrahman, Mochammad Firza; Sutaji, Deni; Bhakti, Henny Dwi

JURNAL ILMIAH KOMPUTER GRAFIS 2026 UNIVERSITAS STEKOM

This study proposes a computer vision-based system for automatically verifying the use of Personal Protective Equipment (PPE) in industrial environments. The system integrates the YOLOv8 object detection model, OpenCV for image processing, and a State Machine mechanism to manage the verification workflow. The verification process begins with employee identification through ID card scanning, followed by real-time detection of the head, safety helmet, and face mask using a camera, before generating a final PASS or FAIL decision. System evaluation was conducted using 250 testing scenarios to assess both model and system performance. The results show that the YOLOv8 model achieved an mAP@50 of 93.9%, while the overall verification system obtained 98.4% accuracy, 98.4% precision, 100% recall, and a 99.2% F1-score. The implementation of the State Machine contributed to a more stable and consistent verification process by ensuring that each inspection stage was executed in the correct sequence. These findings demonstrate that the proposed system can effectively support automated PPE compliance monitoring and has the potential to enhance occupational safety management in industrial workplaces. 

Putra, Rayhan Farras Wibawa; Haq, Ainul; Nasution, Syarifuddin; Puspitasari, Riris Lindiawati

VIP Driving Course is a driving course institution that focuses on safe and effective learning. This course has experienced problems in the last five months, there has been a decrease in the number of students, recorded from January to May, respectively, there were 47, 33, 29, 25, and 21 students. This indicates a customer satisfaction issue related to service quality. The purpose of this study was to identify service quality, analyze the gap value and identify service dimensions or attributes that are prioritized for improvement. The number of respondents used was 112 respondents. This study used the SERVQUAL method to measure the gap between student expectations and perceptions, and importance performance analysis to determine improvement priorities. The results showed six attributes with negative gap values ​​including comfort of facilities, clarity of material, availability of cars, responsiveness of service, clarity of information, and attention to safety, and seven attributes with positive gap values ​​including vehicle cleanliness, neatness of instructors, time discipline, fast administration, friendly service, openness to input, and orientation to student needs. SERVQUAL analysis shows 4 dimensions with negative values ​​including tangibles of -0.21, reliability of -0.32, responsiveness of -0.29, and assurance of -0.24, while the empathy dimension obtained a positive gap value of 0.06. This indicates that most services have not met student expectations. Based on the IPA analysis, there are 4 attributes in quadrant I that are the main priority for improvement, with suggestions including rearranging the waiting room, lighting, air circulation, and supporting facilities. Increasing the number of training cars, optimizing the delivery of schedule information, procedures through digital media, and increasing attention to driving safety. Improvement efforts are made to increase customer satisfaction.

Annisa Dwi Sandy; Febby Maharani; Sarah Adelia Hasibuan; Abdurrozzaq Hasibuan

VitaMedica : Jurnal Rumpun Kesehatan Umum 2026 STIKES Columbia Asia Medan

Industrial hygiene is a branch of public health research that aims to prevent illness and promote Industrial hygiene is an aspect of public health that prioritizes health protection measures for workers through the identification, evaluation, and control of various elements of the work environment that can cause health problems. The goal of implementing industrial hygiene is to prevent work-related illnesses and create a safe, healthy work environment that supports workers’ well-being. Industrial Safety and Health (IS&H) encompasses these various components, including risk identification, risk assessment, risk mitigation, and worker health monitoring, waste management, and emergency response planning. Workplace risks can include physical, chemical, biological, psychological, and ergonomic hazards. Hazard analysis is a crucial step in industrial hygiene as it helps identify and document potential health risks in the workplace. The hazard analysis process includes hazard identification, risk assessment, hazard prioritization, and risk control. The implementation of Occupational Safety and Health aims to ensure the protection of employees’ safety and health from potential hazards arising from work, while ensuring a safe and sustainable work environment. The implementation of OSH and environmental health also provides broad strategic benefits such as worker protection, cost efficiency, increased productivity, regulatory compliance, and enhanced corporate reputation.  

Qadri, Muhammad Saleh; Yasin, as; Wati, Risnah; Milida, Rizkia; Nur Ainun, Rizkita

Journal of Administrative and Sosial Science (JASS) 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

The implementation of healthy and safe school standards is a strategic effort to create a learning environment that supports the health and safety of elementary school students. This study aims to evaluate the implementation of healthy and safe school standards at SDN 6 Kendari, which is characterized by its proximity to a market and a main road. The study employed a qualitative approach using a case study design, involving field observations, the completion of a healthy and safe school indicator questionnaire, and interviews with educators. The results indicate that SDN 6 Kendari has met most of the healthy school indicators, evidenced by well-maintained buildings, adequate ventilation and lighting, proper sanitation and waste management, and students’ consistent practice of clean and healthy living behaviors. Regarding the safe school aspect, the school’s social environment is relatively conducive and free from risky behaviors, supported by the availability of a monitoring system and collaboration with relevant parties. However, several areas still require improvement, such as the equitable distribution of handwashing facilities, more strategic placement of portable fire extinguishers, and strengthening traffic risk mitigation measures due to the school’s location. Overall, the implementation of healthy and safe school standards at SDN 6 Kendari has been proceeding well, but requires continuous improvement to achieve optimal compliance with the standards.

Moh. Rizki Fauzan; Hairil Akbar; Sarman Sarman; Annisa Aulia Cahyani Hulla; Darmin Darmin +1 more

JURNAL ILMIAH KESEHATAN MASYARAKAT DAN SOSIAL 2026 CV. ALIM'SPUBLISHING

Needle Stick Injury (NSI) is a serious occupational hazard among healthcare workers due to the risk of transmitting bloodborne pathogens. A preliminary study at Puskesmas X found that 60% of healthcare workers had experienced NSI. This study aimed to analyze the relationship between work standards, skills, and training with the incidence of NSI among healthcare workers (nurses and midwives) at Puskesmas X, East Bolaang Mongondow Regency. An analytical observational study with a cross-sectional design was conducted. A total sampling technique was used, resulting in 37 respondents. Data were collected using a structured questionnaire and analyzed using statistical tests. The results showed majority of respondents were aged 26–34 years (67.6%), female (81.1%), and had experienced NSI (73.0%). Statistical analysis showed a significant association between work standards (p = 0.018), skills (p < 0.001), and training (p = 0.014) with NSI incidence. Poor work standards, inadequate clinical skills, and limited participation in training were strongly associated with higher rates of NSI. Community health centers are recommended to implement regular occupational safety training programs to improve the technical skills of healthcare workers.

Moh. Rizki Fauzan; Hairil Akbar; Sarman Sarman; Annisa Aulia Cahyani Hulla; Darmin Darmin +1 more

JURNAL ILMIAH KESEHATAN MASYARAKAT DAN SOSIAL 2026 CV. ALIM'SPUBLISHING

Needle Stick Injury (NSI) is a serious occupational hazard among healthcare workers due to the risk of transmitting bloodborne pathogens. A preliminary study at Puskesmas X found that 60% of healthcare workers had experienced NSI. This study aimed to analyze the relationship between work standards, skills, and training with the incidence of NSI among healthcare workers (nurses and midwives) at Puskesmas X, East Bolaang Mongondow Regency. An analytical observational study with a cross-sectional design was conducted. A total sampling technique was used, resulting in 37 respondents. Data were collected using a structured questionnaire and analyzed using statistical tests. The results showed majority of respondents were aged 26–34 years (67.6%), female (81.1%), and had experienced NSI (73.0%). Statistical analysis showed a significant association between work standards (p = 0.018), skills (p < 0.001), and training (p = 0.014) with NSI incidence. Poor work standards, inadequate clinical skills, and limited participation in training were strongly associated with higher rates of NSI. Community health centers are recommended to implement regular occupational safety training programs to improve the technical skills of healthcare workers.

Widya Agustina; Dian Rianita

Journal of Administrative and Sosial Science (JASS) 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

This study aims to examine the cyber policies implemented by the Indonesian government in light of the impact of digital technology developments on the younger generation, with a view toward achieving inclusive and youth-friendly governance. This study employs a descriptive qualitative method using a critical discourse analysis approach based on van Dijk’s perspective. The research was conducted in three stages: data collection, data analysis, and presentation of results. The data source for this study is Law No. 1 of 2024. The data consists of structured documents collected using the read, observe, and record technique. The results indicate that the cyber policies in Law No. 1 of 2024 mark a shift from a reactive to a proactive approach by prioritizing child protection. This policy expands the scope of protection to include personal data, privacy, and child safety in the digital space, while also affirming the responsibilities of Electronic System Operators. The research findings are expected to enrich understanding of the importance of a policy communication model that is creative, transparent, participatory, and responsive in fostering literacy and critical awareness regarding the use of information technology. Thus, this research is expected to contribute to supporting the realization of a more inclusive digital space governance that is youth-friendly and aligned with the strengthening of moral values and social ethics in community life.  

Nurcholisah Fitra; Syafrina Ulfah

VitaMedica : Jurnal Rumpun Kesehatan Umum 2026 STIKES Columbia Asia Medan

The development of Artificial Intelligence (AI) has driven significant transformation in hospital management, particularly in operational efficiency, service quality, and patient safety. This study aims to analyze the implementation of AI in hospital management based on recent scientific evidence from 2020 to 2026. The method used was a systematic review guided by the PRISMA 2020 framework. Literature was retrieved from PubMed, ScienceDirect, SpringerLink, Google Scholar, and ProQuest. From 360 identified articles, a stepwise selection process was conducted, resulting in 15 articles that met the inclusion criteria. The findings indicate that AI contributes to improved operational efficiency through patient flow optimization, operating room management, workforce scheduling, and electronic medical record management. AI also enhances service quality through predictive data analytics and supports patient safety through risk detection and early warning systems. In conclusion, AI has strong strategic potential to support modern hospital management. However, its implementation still faces several challenges, including human resource readiness, data security, algorithmic bias, system interoperability, and investment requirements. Therefore, AI implementation should be carried out in a planned, ethical manner and evaluated from a health economics perspective.

Nunung Setiyawati; Edy Susena

Jurnal Praba : Jurnal Rumpun Kesehatan Umum 2026 STIKES Columbia Asia Medan

The implementation of Electronic Medical Records (EMR) has become an essential part of digital transformation in the healthcare sector, aiming to improve the quality, effectiveness, efficiency, and continuity of healthcare services. In Indonesia, the implementation of EMR is supported by the Regulation of the Minister of Health Number 24 of 2022, which mandates healthcare facilities to adopt electronic medical records. However, the implementation process is often challenged by various technical and non-technical factors that may affect its success. This study aims to analyze the success factors and barriers to EMR implementation in hospitals through a literature review approach. The research method used was a literature review by examining and analyzing 11 scientific articles obtained from Google Scholar and other relevant scientific sources. The findings indicate that the success of EMR implementation is influenced by three main aspects, namely human, organizational, and technological factors. Supporting factors include management commitment, user readiness, continuous training, availability of information technology infrastructure, system quality, and organizational support. Meanwhile, common barriers include limited digital literacy among healthcare workers, insufficient information technology personnel, unstable internet connectivity, system errors, inadequate facilities and infrastructure, budget limitations, and the absence of specific standard operating procedures. Furthermore, EMR implementation provides significant benefits, such as improving service efficiency, facilitating access to patient information, enhancing documentation quality, supporting communication among healthcare professionals, and increasing patient safety. Therefore, successful EMR implementation requires synergy between human resources, organizational readiness, and technological infrastructure to achieve optimal healthcare service delivery.

Muhammad Dzikryan Rifanda; Muhammad Akhlis Rizza

Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer 2026 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Cracker pr machines are widely used in small and medium-scale food industries. However, limitations in frame design and motor speed control often result in suboptimal machine performance. This study aims to perform a redesign of the upper conveyor frame, analyze the structural strength of the frame, and evaluate the effect of using a Variable Speed Drive (VSD) inverter on improving the production capacity of a cracker printing machine.The research method includes frame redesign, load calculation, and numerical analysis using the Finite Element Method (FEM) with SolidWorks Simulation. The applied loads consist of machine component weights and operational loads. In addition, performance testing was conducted by varying the motor rotational speed controlled by the VSD inverter to determine its effect on production output.The results show that the redesigned frame has a maximum displacement of 0.18 mm, a maximum stress of 8.9 MPa, and a minimum safety factor of 31, indicating that the structure is safe and operates within the elastic region. The implementation of the VSD inverter successfully increased the machine’s production capacity from the initial condition up to 78.5 kg/h. Based on these results, it can be concluded that the frame redesign and the application of a VSD inverter are effective in improving the performance and reliability of the cracker printing machine.

Maria Rini Wulan Dhari; Eddy Eddy; Rosalina Tjandrawinata; Tansza Permata Setiana Putri

Jurnal Sains dan Kesehatan (JUSIKA) 2026 Universitas Muhamadiyah Manado

Guided Bone Regeneration (GBR) relies on a barrier membrane to prevent soft tissue invasion in the wound area and maintain space for bone formation. Conventional membranes generally function as a passive barrier without enhancing osteogenesis. Membranes fabricated with the addition of β-TCP were developed to enhance membrane bioactivity. This review aims to evaluate the role of β-TCP as a bioactive component in barrier membranes used in GBR procedures. The study used a narrative review approach with literature sources from PubMed, Google Scholar, and ScienceDirect in the period 2016–2026. The keywords used included “guided bone regeneration," “barrier membrane," and “β-tricalcium phosphate." The selected articles were English-language experimental studies with relevant topics. A total of 7 articles met the inclusion criteria. The incorporation of native β-TCP showed increased osteoconductivity, hydrophilicity, and mechanical strength of the membrane. The release of calcium and phosphate ions plays a role in increasing osteoblast proliferation and osteogenic marker expression. In vitro and in vivo studies also demonstrated increased new bone formation and improved regeneration space maintenance compared to conventional membranes. The optimal concentration of β-TCP varies depending on the polymer matrix. β-TCP-based membranes have the potential to act as bioactive barrier membranes that not only act as a barrier but also support bone regeneration. Further research, particularly human clinical trials, is needed to confirm their effectiveness and safety.

Elfina Malinda; Elita Amrina; Ummi Jayanti

JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN 2026 Fakultas Teknik Universitas Cenderawasih

Substandard housing remains a multidimensional urban problem because it intersects with structural safety, indoor environmental quality, sanitation, clean water, poverty, and the effectiveness of policy implementation. This study evaluates the implementation of the substandard housing improvement program (RTLH) in Lubuk Linggau City by integrating a technical audit of housing quality with an implementation analysis based on the variables of communication, resources, implementer disposition, and bureaucratic structure. A descriptive-evaluative mixed approach was applied through field observation, technical scoring of ten rehabilitated houses, document review, and structured interviews with regulators, field facilitators, and beneficiary households. The results show that the cumulative technical conformity index reached 3.325 out of 4.00, equivalent to 83%, and was classified as adequate housing. Structural resilience achieved the highest score at 88%, followed by space adequacy at 85%, natural lighting and ventilation at 80%, and sanitation and clean water at 75%. Five houses were classified as adequate housing, while five were classified as fairly adequate/light substandard housing. The implementation analysis indicates that clear practical communication and facilitator assistance strengthened structural quality, but limited financial resources, weak environmental-health prioritization, and administratively oriented supervision reduced sanitation and ventilation performance. The study recommends standardized septic systems, stronger post-construction technical verification, healthy-housing education, realistic unit budgets, and quality-oriented monitoring.

Dwi Eri Yanti; Vera Surtia Bachtiar; Alfirmansyah Alfirmansyah; Ummi Jayanti

JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN 2026 Fakultas Teknik Universitas Cenderawasih

The governance of sand and gravel mining requires an integrated assessment of technical planning, occupational safety, environmental control, reclamation, and regulatory compliance. This study evaluated the governance of CV. Ria Bersaudara, a sand and gravel mining company located in Pasar Surulangun, Rawas Ulu District, Musi Rawas Utara Regency, using the Good Mining Practice framework. The study used a descriptive evaluative approach based on field observation, document review, indicative resource estimation, equipment productivity analysis, occupational safety and environmental risk assessment, and compliance mapping. The results show that the company has a basic legal foundation through an exploration mining permit covering 12.5 ha; however, several governance components require improvement. The indicative prospective area was approximately 2.50 ha, with an effective follow-up area of 1.80 ha and an estimated indicative resource of 21,600 m³ or 35,640 tons. Productivity analysis indicated that excavator capacity reached about 61 m³/hour, while one dump truck only transported about 10.3 m³/hour, creating a haulage bottleneck if the truck fleet is insufficient. Safety implementation was also not optimal, with personal protective equipment compliance estimated at only 55%. The study recommends validating permit documents, strengthening technical exploration data, improving drainage and sediment control, enforcing safety procedures, implementing progressive reclamation, and establishing daily operational records.

Hendro Damanra; Bambang Istijono

JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN 2026 Fakultas Teknik Universitas Cenderawasih

Limited land availability is a major constraint in developing school infrastructure in active urban educational facilities. This study evaluates the classroom development plan at SDN 39 Lubuklinggau from the perspective of a planner, focusing on land limitation, functional needs, safety, constructability, and long-term building performance. A descriptive-evaluative approach was applied through technical observation, document review, alternative assessment, weighted scoring, and risk analysis. The results indicate that horizontal expansion is constrained by limited open space and may reduce internal circulation, student activity areas, and emergency space. Three alternatives were compared: horizontal expansion, building rearrangement, and a two-storey classroom scheme. The two-storey alternative obtained the highest score of 84, compared with 61 for rearrangement and 56 for horizontal expansion. However, its feasibility depends on further soil investigation, structural design, staircase and evacuation safety, utility coordination, construction phasing, and strict site safety control. The study recommends that the planner prioritize detailed site measurement, geotechnical investigation, detailed engineering design, construction safety planning, and post-construction functional evaluation. A vertical classroom strategy can be considered a rational solution for land-constrained schools when supported by accountable technical planning and integrated project control.

Apriani, Putu Yuli; Suarniti, Ni Wayan; Erawati, Ni Luh Putu Sri

Bali Health Published Journal (BHPJ) 2026 Sekolah Tinggi Ilmu Kesehatan KESDAM IX/Udayana

Background: Cesarean section (CS) is a mode of delivery frequently used in women with high-risk pregnancies. Over the past two decades, the rate of CS has increased significantly worldwide. Although CS can be a life-saving intervention when performed based on appropriate medical indications, it may also result in adverse outcomes for both mothers and infants and increase the clinical and economic burden on healthcare systems. Limiting CS rates can be achieved through the control of modifiable risk factors. Purpose: This study aimed to describe the factors contributing to the occurrence of cesarean section. Method: This study employed a descriptive cross-sectional design and was conducted at Singasana Regional General Hospital, Tabanan Regency, from February to May 2025. The study sample consisted of 259 women who underwent cesarean delivery during the period 2020–2024. Data were collected through a review of medical records using a checklist instrument. Univariate analysis was performed to describe maternal characteristics and indications for cesarean section. Result: Most cesarean deliveries occurred in women aged 20–35 years (77.99%) and in multiparous women (48.65%). The most dominant maternal factor was a previous cesarean section (37.6%), while the most common fetal factor was fetal distress (42.7%). Conclusion: Maternal age of 20–35 years, multiparity, a history of previous cesarean section, and fetal distress were the dominant factors associated with cesarean delivery. These findings highlight the importance of early antenatal risk screening and optimal labor management to reduce unnecessary cesarean sections and improve maternal and neonatal safety.

Dea Rizka Koesalia; Keisha Nathaya Yona Wirawan

Jurnal Sains dan Teknologi 2026 Fakultas Teknik Universitas Cenderawasih

Online transportation has become an essential component of modern urban mobility, significantly transforming the way people travel while creating new challenges related to service quality, safety, customer satisfaction, sustainability, and its impact on conventional public transportation. This study aims to examine the development of research on online transportation through a bibliometric analysis combined with a Systematic Literature Review (SLR). Data were collected from the Scopus database using the keyword "Online Transportation" and filtered using the PRISMA framework, resulting in 90 eligible articles for analysis. The bibliometric analysis was conducted using VOSviewer to identify publication trends, leading contributing countries, author affiliations, journal sources, and the most frequently occurring keywords. The findings reveal that research on online transportation remains relatively limited despite showing a gradual increase in recent years. Indonesia emerged as the country with the highest number of publications, followed by the United States, China, Japan, Malaysia, and the United Kingdom. Frequently occurring keywords indicate that online transportation research is commonly associated with traffic management, drivers, passenger safety, customer satisfaction, service quality, employment, and user loyalty. These findings suggest substantial opportunities for future studies, particularly in the areas of regulatory frameworks, sustainable transportation, traffic safety, digital technology integration, and the development of intelligent transportation systems to support more efficient, inclusive, and sustainable urban mobility.

Wati, Ni Made Nopita; Dewi, Ni Luh Putu Thrisna Dewi

Bali Health Published Journal (BHPJ) 2026 Sekolah Tinggi Ilmu Kesehatan KESDAM IX/Udayana

Background: The application of ethical principles is an essential foundation in nursing practice, as nurses frequently encounter complex clinical situations that require a careful balance between professional demands, patient safety, and patient rights. Objective: This study aims to explore nurses' experiences in applying ethical principles within clinical nursing practice. Methods: This study utilized a qualitative design with a phenomenological approach. Participants were selected via purposive sampling based on their work experience in direct patient care. Data were collected through in-depth interviews and analyzed using thematic analysis. Results: The findings revealed four main themes: 1) patient autonomy and decision-making in care; 2) the interaction of beneficence, safety, and religious values in care; 3) justice and patient prioritization in care; and 4) effective communication and patient confidentiality. Conclusion: The application of ethical principles is influenced by knowledge, clinical reasoning, moral sensitivity, and teamwork. Continuous reinforcement of ethical education and organizational support are highly required to enhance the quality of nursing care services.

Heru Fahrudin Faiz; Rika Ampuh Hadiguna

JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN 2026 Fakultas Teknik Universitas Cenderawasih

Road improvement projects require consistency between technical planning documents and field implementation to ensure that service quality, structural performance, construction time, and user safety are achieved. This article evaluates the conformity between planning and realization in the Pangkalan-Batas Jambi road improvement project in Rawas Ulu District, North Musi Rawas Regency. The study used a descriptive-quantitative evaluative approach based on field monitoring, project technical documents, comparative quantity analysis between contract and Contract Change Order (CCO), and identification of implementation constraints. The results showed that several work items changed during construction because initial planning data did not fully capture actual field conditions. Quantities increased for drainage excavation (+18.87%), roadbed preparation (+8.99%), aggregate class A base course (+12.51%), and AC-Base (+11.98%). Conversely, reinforced pipe culverts decreased (-58.33%), unsealed aggregate base/sirtu decreased (-43.50%), and tack/prime coat volume slightly decreased (-0.47%). The time schedule showed a minor delay of -0.13% in the first week but recovered in the second week, indicating effective field coordination. Main constraints included traffic interference, limited worker visibility, and equipment visibility. The study recommends more detailed site surveys during planning, stronger traffic management, stricter occupational safety implementation, systematic progress control, and routine post-construction maintenance to maintain road service life.

Sulton Nasrullah; Purwoko Purwoko; Muhammad Akhlis Rizza; Sugeng Hadi Susilo

Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer 2026 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Braking performance is an important aspect of motorcycle safety because it relates to the vehicle’s ability to reduce speed and stop properly. In a hydraulic disc brake system, braking is influenced by mechanical and hydraulic factors, especially disc brake diameter and master cylinder pressure. Disc brake diameter determines the effective braking radius, while master cylinder pressure generates hydraulic pressure that is transmitted to the caliper. This study aims to analyze the effect of disc brake diameter and master cylinder pressure variations on the braking distance and braking time of a 110 cc motorcycle. This research used a quantitative experimental method with a Honda Revo Injection 110 cc motorcycle as the test object. The disc brake diameter variations were 190 mm, 220 mm, and 260 mm, while the master cylinder pressures were 2 bar, 4 bar, and 6 bar. Each treatment combination was tested three times at an initial speed of 40 km/h on a dry and flat asphalt road. Braking distance was obtained from front wheel rotation data recorded by a magnetic digital counter, while braking time was determined from video recordings. The data were analyzed using Two-Way ANOVA and response optimization. The results showed that increasing disc brake diameter and master cylinder pressure reduced braking distance and braking time. The best combination was obtained at a 260 mm disc brake diameter and 6 bar master cylinder pressure, producing a braking distance of 12.8 m and a braking time of 2.3 s.

Prasetya, Prita; Handayani, Aniek Sri

ISAINTEK: Jurnal Informasi, Sains dan Teknologi 2026 Politeknik Negeri FakFak

Hot material dumping in the chemical industry is an important process stage that affects occupational safety, process stability, and product quality reliability. In manual processes, dumping activities may cause variation because they are influenced by operator condition, pouring angle, work speed, and exposure to hot materials. This study aims to analyze the consistency of the hot material dumping process and formulate a B2B strategy based on process reliability. The research method uses a descriptive-quantitative case study approach with data from 20 batches, analyzed through three indicators: dumping time, pouring flow stability, and material temperature change or ΔT. The data were primary data obtained directly through field observation, production-process documentation, and recording of process parameters; journal literature was used only as the theoretical and interpretive basis. The results show that the automated process provides more consistent performance than the manual process. The average dumping time decreased from 49.14 seconds to 30.18 seconds, the coefficient of variation for dumping time decreased from 12.44% to 1.36%, the pouring flow stability score increased from 2.55 to 4.70, and the average material ΔT decreased from 15.26°C to 8.16°C. These findings indicate that automation can improve process regularity, reduce variation between batches, and maintain material conditions in a more controlled manner. This process consistency can serve as the basis for a B2B strategy based on process reliability, emphasizing process reliability, production safety, quality consistency, and data-based evidence as key values in building industrial customer trust.