International Journal of Health, Engineering and Technology
International Journal of Health, Engineering and Technology (IJHET) is to provide research media and an important reference for the progress and dissemination of research results that support high-level research in the field of Health, Engineering and technology. Original theoretical work and application-based studies, which contribute to a better understanding of all areas of Health, Engineering and Technology , the journal publishes articles six times a year in May, July, September, November, January and March. Scope: International Journal of Health, Engineering and Technology (IJHET) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Health, Engineering and Technology Research. Original theoretical work and application-based studies, which contributes to a better understanding all fields of Health, Engineering and Technology Research. Healt : Clinical Nutrition, Community Nutrition, Institutional Nutrition, Food Technology, Food Security, Pediatric Physiotherapy, Geriatric Physiotherapy, Cardiovascular and Pulmonary Physiotherapy, Musculoskeletal Physiotherapy, Sports Physiotherapy, Public Health, Community Sanitation, Environmental Health, Nursing, Biology, Medicine, Pharmacy. Engineering : The field of mechanical Engineering include expertise in energy conversion, construction machinery, manufacturing and materials. The field of Electrical Engineering which includes skills power engineering, telecommunications engineering and information, as well as control and instrumentation. The field of Chemical Engineering which includes expertise in the field of new and renewable energy, the environment field. The field of Civil Engineering which includes expertise in the fields of structural, geotechnical, transportation and water. The field of Metallurgical Engineering which includes expertise in extraction, manufacturing and characterization of materials. The field of Industrial Engineering which includes enterprise management system, working system and the ergonomics and manufacturing systems. Technology: Open Source Application, Information Management, Information System, IT & Social Impact, Geographical Information System, Web Engineering, Database Design & Technology, Data Warehouse, Network Security, Data Mining, Computer Architecture Design, Mobile Programming.
Articles
757 Documents
<![CDATA[A Literature Review On The Structure-Activity Relationship (SAR) Approach In The Optimization And Development Of Anticancer Compounds As Drug Candidates ]]>
<![CDATA[Saeful Amin]]>;
<![CDATA[Annisa Nurwafi]]>;
<![CDATA[Jingga Ramdhina]]>;
<![CDATA[Putri Nuraisyah]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.870
<![CDATA[Cancer is one of the leading causes of death worldwide, with increasing incidence and mortality rates, highlighting the urgent need for more effective and selective therapeutic strategies. One widely used approach in medicinal chemistry is the Structure–Activity Relationship (SAR), which aims to understand the relationship between the chemical structure of compounds and their biological activity. This study aims to analyze the role of the SAR approach in the optimization and development of anticancer compounds as drug candidates through a literature review of 15 scientific journals. The method used is a descriptive-comparative approach by evaluating parameters such as compound structure, types of substituents, biological activity, and mechanisms of action. The results indicate that structural modifications, including the addition of hydroxyl, methoxy, and halogen groups, as well as molecular hybridization strategies, significantly enhance anticancer activity, as reflected by IC₅₀ values in the micromolar to nanomolar range. Furthermore, modified compounds tend to exhibit higher selectivity and more specific mechanisms of action toward biological targets. Therefore, the SAR approach is proven to be effective as a foundation for the rational design of more optimal anticancer compounds. The implications of this study suggest that integrating SAR with biological evaluation and formulation development may lead to more effective and safer anticancer drug candidates.]]>
<![CDATA[Integrated Analysis Using FTA, ASPEN HYSYS, And Lopa Of The 2019 HF Alkylation Unit Incident At The Philadelphia Energy Solutions Refinery ]]>
<![CDATA[Muhammad Ridho Fauzan]]>;
<![CDATA[Manuel Asi Saputra]]>;
<![CDATA[M Farhan Madani]]>;
<![CDATA[Raihan Nur Syafiq]]>;
<![CDATA[Narisa Rayyana]]>;
<![CDATA[Ayu Rachmawati]]>;
<![CDATA[Eka Fitriani Ahmad]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.871
<![CDATA[The incident at the Hydrofluoric Acid Alkylation Unit of the Philadelphia Energy Solutions Refinery (PES) in 2019 represents a major process safety failure driven by a combination of technical and systemic weaknesses. This study analyzes the root causes, process dynamics, and adequacy of protection layers through an integrated application of Fault Tree Analysis, Aspen HYSYS process simulation, and Layer of Protection Analysis. FTA was used to identify causal relationships between basic events and the top event, while HYSYS simulation provided insight into the thermodynamic conditions of the process fluid prior to the rupture. LOPA evaluated the effectiveness of the existing protection layers. The findings indicate that the rupture of the discharge-line elbow resulted from undetected HF corrosion, improper material selection, weaknesses in the mechanical integrity program, and the absence of an emergency isolation valve. The simulation confirmed vapor-phase dominance, leading to a high-velocity jet release and rapid vapor cloud formation that subsequently ignited. LOPA revealed that most protection layers did not meet the criteria for an independent protection layer (IPL), with only the Rapid Acid Deinventory (RAD) system proving effective. These results highlight the need to strengthen protection design, implement risk-based inspection, improve material selection, and apply inherently safer design principles to prevent similar incidents in high-risk industrial facilities.]]>
<![CDATA[Analysis Of Factors Associated With Employee Performance At The Health Office Of Southwest Papua Province In 2026 ]]>
<![CDATA[Linda Margared Antaribaba]]>;
<![CDATA[Muhammad Akbar Nurdin]]>;
<![CDATA[Arius Togodly]]>;
<![CDATA[Yacob Ruru]]>;
<![CDATA[Septevanus Rantetoding]]>;
<![CDATA[Dolfinus Bouway]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.872
<![CDATA[This study aims to analyze factors associated with employee performance at the Health Office of Southwest Papua Province in 2026. This research used an analytical quantitative design with a cross-sectional approach. The population consisted of all employees totaling 97 respondents, selected using a total sampling technique. Data were collected using structured questionnaires based on each research variable. Data analysis was conducted using univariate analysis, bivariate analysis with the Chi-square test, and multivariate analysis using logistic regression. The results showed that most respondents had good performance (61.9%), good leadership (57.7%), high work motivation (60.8%), good competence (63.9%), and a supportive work environment (59.8%). However, the majority of respondents experienced a heavy workload (53.6%). Bivariate analysis revealed significant relationships between leadership (p=0.003), work motivation (p=0.001), competence (p=0.002), work environment (p=0.003), and workload (p=0.004) with employee performance. The multivariate analysis indicated that work motivation was the most dominant factor associated with employee performance, with an Odds Ratio (OR) of 3.35. This implies that employees with high work motivation are more likely to have good performance compared to those with low motivation. In conclusion, all independent variables were significantly related to employee performance, with work motivation as the most dominant factor. It is recommended to improve employee motivation through incentives, career development, and better workload management.]]>
<![CDATA[Environmental Health Risk Assessment (EHRA) Of Carbon Monoxide (CO) Exposure Among Fuel Station Operators At Gas Stations In Kota Baru District In 2026 ]]>
<![CDATA[Muhammad Gusman Syahlun Abyan]]>;
<![CDATA[Willia Novita Eka Rini]]>;
<![CDATA[Andree Aulia Rahmat]]>;
<![CDATA[Oka Lesmana S.]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.873
<![CDATA[This study aims to analyze environmental health risks caused by carbon monoxide (CO) exposure among gas station operators in Kota Baru District, Jambi City, in 2026 using the Environmental Health Risk Assessment (EHRA) method with a quantitative descriptive approach. The research was conducted from January to February 2026 and involved 61 respondents from five gas stations: SPBU 24.361.70, 24.361.51, 24.361.04, 24.361.13, and 24.361.58. Data collection was carried out through direct measurement of CO concentration using the AS8700A CO meter, wind speed measurement using an anemometer, temperature and humidity measurement using a thermohygrometer, and structured interviews regarding exposure characteristics. The results revealed that two locations showed unsafe risk levels under realtime conditions, namely SPBU 24.361.04 with a Risk Quotient (RQ) value of 1.187 and SPBU 24.361.51 with an RQ value of 1.073, both exceeding the safe threshold (RQ>1). The highest CO concentration was recorded at SPBU 24.361.51, reaching 11.9443 mg/m³. The most dominant health complaints experienced by respondents were fatigue (54.1%) and dizziness (34.4%). Nevertheless, the 30-year lifetime risk projection indicated that all study locations remained within the safe category, with RQ values below 1.]]>
<![CDATA[Analysis And Evaluation Of The Performance Of A Low-Pressure Boiler Feed Pump Induction Motor Based On Temperature Increase ]]>
<![CDATA[Muhammad Aisyur Rifky Maulanaa]]>;
<![CDATA[Royb Fatkhur Rizal]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.874
<![CDATA[The induction motor in the Low Pressure Boiler Feed Pump (LP BFP) system plays a crucial role in ensuring the smooth operation of the power generation process at the combined cycle power plant. An increase in motor temperature is a key indicator for evaluating performance and detecting potential operational issues at an early stage. This study aims to analyze and evaluate the performance of the LP BFP induction motor based on temperature rise and motor vibration conditions at PT PLN Nusantara Power UP Gresik. The research method employs a descriptive quantitative approach through field observations, temperature measurements, vibration analysis, and the collection of motor operational data. The results show that the motor temperature on the Drive End (DE) side is 56.8°C and on the Non-Drive End (NDE) side is 47.6°C, which are still within normal operating limits. However, the vibration analysis results indicate bearing damage with an ALARM status based on ISO 10816-3. Therefore, regular temperature monitoring and preventive maintenance are crucial to maintaining the motor’s operational reliability.]]>
<![CDATA[Analysis Of Protection Relay Setting Coordination On Excitation Transformer At Gresik PLTGU ]]>
<![CDATA[Muhamad Ainul Yaqin]]>;
<![CDATA[Royb Fatkhur Rizal]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.875
<![CDATA[Excitation transformer is one of the important equipment in the generation system that functions to supply generator excitation power so that the reliability of the transformer protection system needs to be maintained so that the generator operation remains safe and stable. This study aims to analyze the coordination of protection relay settings on the excitation transformer at the Gresik PLTGU using the GE Multilin T60/G60 relay. The analysis was carried out based on the existing relay settings without using a full system simulation, with a focus on the evaluation of differential protection (ANSI 87T), overcurrent relay (ANSI 51), overexcitation protection (ANSI 24), and the inrush inhibit feature. The research method used is descriptive-analytical through data collection in the form of single line diagrams, current transformer (CT) data, and existing relay settings which are then compared with the IEEE C37.91, IEC 60255 standards, and the GE Multilin T60 relay manual. The results of the study indicate that the differential relay settings with a pickup of 0.3 pu, slope 1 of 30%, slope 2 of 80%, and inrush inhibit of 20% are still within the recommended range of transformer protection and are able to maintain the sensitivity and stability of the relay against internal disturbances and transient conditions. The overcurrent relay setting of 2 pu with a delay of 3 seconds and instantaneous overcurrent of 4 pu with a delay of 0.15 seconds shows a fairly selective backup protection coordination against overcurrent and short circuit disturbances. In addition, the overexcitation setting of 1.19 pu with a delay of 10 seconds is considered still appropriate to protect the transformer from overfluxing conditions. Based on the evaluation results, the transformer excitation protection system at the Gresik PLTGU has had quite good protection coordination according to the principles of sensitivity, selectivity, stability, and reliability of the transformer protection system.]]>
<![CDATA[Risk Factors And Postoperative Complications In Laparotomy Under General Anesthesia: A Systematic Literature Review ]]>
<![CDATA[Adelia Trisna Septiani]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.876
<![CDATA[Laparotomy is an abdominal surgery procedure that is still widely performed both in elective and emergency conditions. This procedure is often performed under general anesthesia and has a fairly high risk of postoperative complications, such as pulmonary complications, acute kidney injury (AKI), surgical wound infections, ileus, sepsis, and postoperative nausea and vomiting (PONV). The risk of complications may increase due to patient factors, intraoperative factors, and anesthesia factors. This study aims to identify and synthesize risk factors that contribute to postoperative complications in patients undergoing laparotomy surgery under general anesthesia. This study uses the Systematic Literature Review (SLR) method with the PRISMA approach and the PICO framework. Literature searches were conducted on PubMed, ScienceDirect, and Google Scholar databases with a publication range of 2015-2025. The included studies were quantitative studies with a Randomized Controlled Trial (RCT) design and a cohort study that discussed risk factors and postoperative complications in patients undergoing laparotomy surgery or open abdominal surgery under general anesthesia. Article quality assessment was carried out using the Joanna Briggs Institute (JBI) instrument. A total of 4,068 articles were identified in the early stages. After the duplicates were removed, 1,409 articles were obtained for filtering. A total of 238 articles passed the initial screening based on titles and abstracts, then 203 articles were removed because they did not meet the inclusion criteria. A total of 35 articles underwent full-text review, 26 articles were removed because they did not meet the criteria, so that 9 articles were eligible for analysis. The results of the synthesis showed that postoperative complications in laparotomy patients with general anesthesia were multifactorial. Patient factors include advanced age, comorbidities, high ASA status, and poor functional status. Intraoperative factors include hypotension, blood loss, organ perfusion disorders, duration of surgery, and fluid management. Anesthesia factors are primarily related to anesthesia techniques, the use of inhaling agents or TIVAs, and the prevention of PONV. The most commonly reported complications include PPCs, AKI, SSI, sepsis, ileus, and PONV. Postoperative complications in laparotomy surgery with general anesthesia are not caused by a single factor, but rather by an interaction between patient, intraoperative, and anesthesia factors. Preoperative risk assessment, intraoperative hemodynamic monitoring, fluid management based on patient needs, and selection of appropriate anesthesia techniques are necessary to lower the risk of complications and improve patient safety.]]>
<![CDATA[Implementation Of An Internet Of Things-Based Motorcycle Security System Using GPS Tracker And Microcontroller ]]>
<![CDATA[Ahmad Ferdian Syaputra]]>;
<![CDATA[Adi Wibowo Adi]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.877
<![CDATA[Motor vehicle theft remains a common problem caused by the weakness of conventional security systems that rely solely on mechanical locks. This study aims to design and implement an Internet of Things (IoT)-based motorcycle security system using ESP32 integrated with RFID RC522, GPS Neo-6M, vibration sensor, starter relay, buzzer, ThingsBoard Cloud, and Telegram Bot. The research employed an experimental method with a prototype approach, including requirement analysis, system design, hardware and software implementation, system integration, and system testing. The developed system performs user authentication using RFID, detects vehicle vibrations, transmits real-time vehicle location coordinates, and provides security notifications through Telegram. Vehicle telemetry data are also transmitted to the ThingsBoard Cloud platform using the MQTT protocol for real-time monitoring. The testing results indicate that all system features functioned properly, including RFID authentication, GPS monitoring, vehicle relay control, vibration detection, MQTT data transmission, and Telegram notifications, with a system success rate of 100%. The developed IoT-based vehicle security system is capable of improving vehicle security more effectively and modernly compared to conventional security systems.]]>
<![CDATA[Atypical Appendicitis In Celiac Disease ]]>
<![CDATA[Stephanie Aurelia Santoso]]>;
<![CDATA[Irene Aurelia Santoso]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.878
<![CDATA[Celiac Disease (CD) is an autoimmune disorder affecting the small intestine due to gluten ingestion and often manifests atypically. While appendicitis in children typically presents with standard symptoms, younger patients or those with comorbidities like CD may exhibit nonspecific signs that delay diagnosis. We describe a case involving a 3-year-old girl who presented with right lower abdominal pain alongside a low Pediatric Appendicitis Score (PAS), positive tTG-IgA serology, and increased fecal calprotectin levels. Despite inconclusive abdominal ultrasound results, diagnostic laparoscopy confirmed an inflamed appendix containing fecaloma. Histopathological analysis verified acute appendicitis. Post-appendectomy care led to the patient’s improvement and further plans for evaluation and education regarding a gluten-free diet. This case emphasizes the diagnostic difficulties associated with atypical appendicitis in CD patients and highlights the necessity of multidisciplinary assessments as well as the effectiveness of diagnostic laparoscopy when faced with ambiguous clinical presentations. A thorough approach can mitigate delays in diagnosis and ensure optimal patient management.]]>
<![CDATA[Complete Denture Management In A Full Edentulous Patient With Mandibular Exostosis : Case Report ]]>
<![CDATA[Sabrina Belqis Putri Salami]]>;
<![CDATA[Pamungkas Handy]]>;
<![CDATA[Ananda Annas Ma’ruf]]>
<![CDATA[ International Journal of Health Engineering and Technology Vol. 5 No. 1 (2026): IJHET MAY 2026 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhet.v5i1.879
<![CDATA[Full edentulism significantly impairs masticatory, phonetic, and esthetic functions, necessitating rehabilitation through Complete Dentures (CD). However, the functional success of a CD is often hindered by anatomical conditions such as exostosis, which can cause pressure pain and compromise the retention and stabilization of the prosthesis. This case report aims to describe the role of preprosthetic surgery, specifically alveoloplasty, in preparing an ideal supporting base for a CD. A 45-year-old female patient presented with total edentulism in both jaws for 3 years, with primary complaints of difficulty in chewing and speaking. Intraoral examination revealed a bony prominence (exostosis) in region 4, which could act as a pathological undercut. Management was performed through an alveoloplasty procedure using the envelope flap technique to reconstruct the alveolar contour to be smooth and atraumatic. Following tissue healing, a CD made of acrylic resin was fabricated to restore speech function and prevent further atrophy of the alveolar process. Preprosthetic surgical intervention proved to be crucial in achieving stability and functional comfort in the use of complete dentures.]]>
