Hexagon

PENGARUH PENGGUNAAN UMPAN IKAN LAYANG (Decapterus spp ) DAN IKAN TEMBANG (Sardinella spp) PADA ALAT TANGKAP LONG LINE KM. PERMATA 318 TERHADAP HASIL TANGKAPAN IKAN TUNA DI PERAIRAN WPP 573

2025-08-27T18:00:32+07:00

This study aims to determine the effect of differences in the use of scad (Decapterus spp.) and scad (Sardinella spp.) bait on tuna catches using longline gear in Fisheries Management Area (WPP) 573. The research method used was a field experiment with a quantitative approach. The study was conducted over 16 fishing operations. The results showed that the use of scad bait resulted in higher tuna catches than scad bait. The average catch using scad was 1,206 kg per fishing operation, while the average catch using scad was 618 kg per fishing operation. Statistical analysis using the t-test showed a significance value of p <0.05, indicating a significant difference between the two types of bait on catches. The conclusion of this study is that scad bait is more effective in increasing tuna catches using longlines in the waters of WPP 573.

KUALITAS SANITASI LINGKUNGAN TEMPAT TINGGAL MASYARAKAT DI KELURAHAN TAIPA KOTA PALU

2025-05-28T13:18:43+07:00

Proper environmental sanitation is an essential component in ensuring a healthy and safe quality of life for communities. Taipa Subdistrict in Palu City has experienced significant growth in infrastructure and population; however, challenges remain in the areas of sanitation and household waste management. This study aims to evaluate the environmental sanitation conditions in Taipa and their impact on public health. The research employed a descriptive quantitative method using a survey approach conducted on 512 households through field observations, interviews, and questionnaires. The results revealed that most residents rely on bore wells as their main sources of clean water and drinking water, while the use of piped water (PDAM) remains limited. Nearly all households have access to healthy latrines and use septic tanks for fecal waste disposal. However, the management of used cooking oil and the practice of open burning of waste remain environmental concerns that require attention. The majority of houses have floors and walls that meet environmental health standards. These findings indicate that although basic sanitation has been categorized as fairly adequate, efforts in public education and improvement of waste management systems are still needed to ensure sustainable environmental health in the community.

STUDI FORMULASI, KARAKTERISTIK DAN AKTIVITAS ANTIOKSIDAN SIRUP BUNGA TELANG (Clitoria ternatea L.)

2025-07-11T13:40:46+07:00

Telang flower (Clitoria ternatea L.) is a flower that is widely used by the community as a drink. Telang flowers give a blue color to the drink but do not provide flavor, so it is necessary to add flavor to the telang flower syrup. The flavor can come from citric acid or lemon fruit. The presence of these additions will affect the characteristics of telang syrup. The purpose of this study was to formulate and test the characteristics of syrup: organoleptic, pH, viscosity, flavonoid content and anthocyanin levels of four formulas of telang syrup. There were four formulas (F1, F2, F3 and F4) of telang syrup, the tests carried out were organoleptical color, taste, fragance and consistency, pH, viscosity, qualitative flavonoid test with color reaction, antosianin and antioxidant test using DPPH. The results showed that F1 had no fragance and blue color, while F2, F3, F4 had lemon fragance and red color. The all formulas have a sweet taste and thick consistency, pH and viscosity that meet the requirements, qualitatively containing flavonoids. The highest anthocyanin content was 2.338 and IC₅₀ 183.52 in F2. Conclusion The addition of citric acid decreased the pH, and viscosity but increased the IC₅₀.

PERBANDINGAN EFEKTIFITAS METODE KONVENSIONAL DENGAN BUILDING INFORMATION MODELING (BIM) PADA PERHITUNGAN BIAYA PELAKSANAAN PROYEK KONSTRUKSI

2025-07-30T18:25:18+07:00

The rapid development of the construction industry and the increasing complexity of projects demand more effective, efficient, and integrated planning methods. Building Information Modeling (BIM) emerges as a technological solution capable of digitally integrating design and construction processes to produce more accurate information. This study aims to compare work volume and cost estimation of the Rectorate Building construction project at the University of Technology Sumbawa using both conventional and BIM methods. A comparative approach was employed, utilizing Autodesk Revit as the 3D modeling instrument. The cost estimation was based on the 2012 Unit Price Analysis (AHSP) of Sumbawa Regency. The results showed a cost difference of Rp 80,656,000 or approximately 4.8%, with BIM providing a lower estimate than the conventional method. This difference reflects BIM’s superiority in accuracy of quantity calculation and material efficiency, supported by three-dimensional visualization and early design conflict detection. Therefore, it can be concluded that BIM is more effective in supporting cost planning and can be relied upon as a modern approach in construction management.

Analisis Hubungan Total Suspended Particulate (TSP) Dan Kecepatan Angin Di Jalan Raya Kota Makassar

2025-06-19T00:30:13+07:00

Transportation activities involving fossil fuel-powered vehicles are a major contributor to air pollution in the form of gases and particulates. In urban areas, poor air quality is generally caused by high levels of pollutants from vehicle emissions, both from private and public transportation. Makassar City has experienced a significant increase in the number of motor vehicles, which has led to higher emission levels that pollute the environment and pose health risks to the public.One of the primary pollutants emitted by motor vehicles is Total Suspended Particulate (TSP). This study aims to evaluate the concentration levels of TSP in ambient air and analyze its correlation with wind speed. Data were collected through direct measurements using a High Volume Air Sampler (HVAS) across six major road segments in Makassar City. Measurements were conducted during three daily peak hours at each location.The results show that the highest recorded TSP concentration reached 398.67 ?g/Nm³ on Perintis Kemerdekaan Street, which exceeds the ambient air quality threshold set by Indonesian Government Regulation No. 41 of 1999. Correlation analysis between wind speed and TSP concentration indicated a moderately strong relationship, with a correlation coefficient of 0.709.

PERANCANGAN KINCIR AIR PEMBANGKIT LISTRIK TENAGA MIKROHIDRO ALIRAN HEAD RENDAH (Studi Kasus Di Desa Manemeng Kecamatan Brang Ene Kabupaten Sumbawa Barat)

2025-06-23T16:37:26+07:00

This study designs a water wheel for micro-hydropower generation with low-head flow of the Undershot type. The water wheel is designed with a head height of 0.5 meters, a diameter of 1.10 meters, and 16 blades, producing a planned power of 6.536 kW. The peripheral speed of the wheel is 0.28 meters per second with a rotation speed of 4.05 rpm. The blade receives water at a rate of 1.4 m³/second, generating a fluid force of 840 Newtons. The angular velocity of the wheel is 0.424 rad/second, and the shaft power is 5.556 kW with a shaft diameter of 0.10 meters. The static equivalent load is calculated to be 438.91 Newtons. This water wheel is expected to utilize slow but constant water flow to generate electricity, helping the rice field area in Manemeng village to maximize harvest yields and control pests.

RANCANG BANGUN MESIN PEMECAH KEMIRI DENGAN METODE SISTEM LEMPAR DALAM MENINGKATKAN PRODUKTIVITAS DENGAN KAPASITAS 20 KG/JAM

2025-07-09T12:04:56+07:00

In general, the process of cracking candlenuts still uses a manual process with rattan bags and hit on stones, so it requires a lot of manpower with special skills. The method used in this study is the throwing system. Based on the results of the study, the results of the rotor test with an average test using 3 rpm variations. Where using 800 rpm obtained intact results with a value of 24.39%, split in half 21.13%, crushed 4.87% and not broken 44.71%. Then with the use of 1000 rpm obtained intact results with a value of 28.45%, split in half 19.51%, crushed 4.06% and not broken 41.46%. While the use of 1200 rpm can produce intact cores 27.23%, split in half 18.29%, crushed 16.26% and not broken 32.52%. So in the test with the rotor using 3 rpm variations (800,100, and 1200) the results of the intact core were obtained with a rotation of 1200 rpm with a result of 27.23%. So by using the designed candlenut nut cracker, the production capacity of the cracker is able to break with a capacity of up to 20 kg / hour.

MODEL REKLAMASI LAHAN ADAPTIF UNTUK TAMBANG RAKYAT DI KABUPATEN SUMBAWA: STUDI KASUS DAN REKOMENDASI

2025-07-30T10:00:06+07:00

income for the local community, also have negative impacts, namely land degradation with numerous abandoned and poorly managed former mining holes. This research aims to provide practical and sustainable recommendations for adaptive reclamation activities in former artisanal mining areas in Area Y, and to serve as a guide for realizing more responsible and sustainable artisanal mining practices. The research was conducted using a qualitative method through the analysis of relevant secondary data. The study results indicate that miners tend to leave former mining holes unreclaimed. This is due to miners' limitations in both technical knowledge and capital, rendering them incapable of carrying out reclamation independently. The impact of these abandoned mining holes has the potential to become a future hazard. The selection of an adaptive land reclamation model focusing on a flexible and participatory approach has proven to be an effective and efficient method for implementing reclamation activities in artisanal mining. Both government and non-governmental agencies can conduct intensive education and training to maximize local community participation for the success of reclamation activities

ANALISIS TAHAPAN REKLAMASI PASCATAMBANG PADA PT BUMI SUKSESINDO BERDASARKAN PRINSIP BEST PRACTICE OLEH BIDANG ENVIRONMENT

2025-07-12T15:55:27+07:00

Mining activities have significant environmental impacts, particularly in land degradation and disturbance of local ecosystems. Post-mining land reclamation is an essential step to restore the ecological and social functions of disturbed areas. This study aims to evaluate the reclamation practices implemented by PT Bumi Suksesindo (PT BSI) in its gold mining operations. A qualitative descriptive method was applied through the analysis of internal company documents and indirect observations of field implementation. The reclamation activities examined include land re-contouring, topsoil management, erosion and sediment control, and revegetation. The results indicate that these stages were carried out in accordance with regulations such as Government Regulation No. 78 of 2010 and Ministerial Regulation No. 07 of 2014. PT BSI also applied best practice principles, including the use of self-nursery tree seedlings and appropriate erosion control methods. This evaluation suggests that PT BSI’s reclamation approach could serve as a reference model for other mining companies striving for sustainable environmental management.

ANALISA PERFORMA METODE TRAINING ARTIFICIAL NEURAL NETWORK DALAM MENDETEKSI TOTAL HARMONIC DISTORTION

2025-07-22T17:38:30+07:00

This Study aims to asses the performance of several training algorithms in Artificial Neural Network for pattern classification task based on input data. The research problem focuses on how training algorithms can produce low error rates in classification. The scientific gap lies in the limited comparative studies that comprehenseively exmine various training methods with variations in the number of hidden neurons. This research utilizes five training methods, Levenburgh – Marquadt, Scaled Conjugate Gradient, Resilient Backpropagation, BFGS Quasi – Newton, and Bayesian Reqularization. The hidden neuron variations range from 5 to 50 neurons. The result indicate that the best performance is achieved using the Bayessian Regularization method, which produces a MAPE value 0.01, an RMSE of 0.0167, abnd accuracy of 99.98%. These findings demonstrate that choosing the appropriate training function significantly affects the performance of Artificial Neural Networks.

PEMANFAATAN LIMBAH FLY ASH DAN BOTTOM ASH SEBAGAI BAHAN TAMBAH DAN BAHAN PENGGANTI UNTUK MENINGKATKAN NILAI KUAT TEKAN BETON

2025-07-12T15:58:41+07:00

The incineration from the coal industry produces waste such as bottom ash and fly ash that can pollute the environment. The use of waste in particular produced by PLTU Kertasari district of West Sumbawa is still not optimal so there needs to be an alternative to address the problem. The study used experimental methods to obtain the composition of a mixture of additive fly ash as cement additive and bottom ash as a substitute for sand on concrete. The objective of the study was to find out the slump values, the Compressive Strength of concrete pressure at age 7 and 28 days on the variations of fly ash 0%, 20%, 40%. and 60% as well as to find the strength comparisons of the pressure concrete life 7 and 28. The study used a cylinder-shaped test object of 15 test objects where for each variation there were 3 testing objects. As for the result obtained is a slump value with additive fly ash producing the largest mixture at 0% variation that is of 11.5 cm. The Compressive Strength value of concrete produced at the age of 7 days is at a variation of 60% which is of 6,09 MPa. Whereas at the age of 28 days the highets compressive strength valeu of concrete was produced at the age of 28 days with a variation of 60% namely 13,02 MPa.

PENGELOLAAN LIMBAH BUNGA PACAR AIR (IMPATIENS BALSAMINA) DARI CANANG SARI DAN PENETAPAN WAKTU PENGUMPULAN

2025-07-10T10:30:06+07:00

The aims of this research are 1) to develop system for collection and separation of flower waste in area model; 2) to analyse the natural dye content in pacar air flower waste during the collection and drying process. The data was collected by interviewing, giving questionnaire, and observing. Respondents in this research were staff of the environmental authority and communities in 5 sub-districts at Buleleng regency. From results of questionnaire, the current behaviour of community in managing canang sari waste can be identified. Then, it can be used as basis for preparation of an effective canang sari waste collection system and qualified as natural dye raw-material. To determine the quality of flowers for collection time, natural dye extraction from pacar air flower waste was carried out at various collection times. Duration of observation time: 1-7 days after canang sari used for worship. Analysis of natural dye content in extract with several tests, used phytochemical, gravimetry, and UV-vis spectrophotometry. The conclusion that can be drawn is that flower waste collection system is carried out in two categories of locations, at places of worship and non-places of worship. Collection time is every 2 days, with the flower waste will be puchased. Sorting system is carried out by providing blue bins for flower waste and grey bins for other waste. Flower waste collected every 2 days, produces the highest natural dye content compared to other collection times, at 59.0481% grams of dye per gram of dried flowers, with anthocyanin content at 32.06185 mg/l.

USULAN TATA LETAK MATERIAL DAN PERLUASAN GUDANG PADA PROYEK PEMBANGUNAN BENDUNGAN TIU SUNTUK PAKET 1 MENGGUNAKAN METODE CLASS BASED STORAGE

2025-02-03T10:56:15+07:00

PT Nindya Karya is a state-owned enterprise (SOE) engaged in construction services, currently undertaking the development of the Tiu Suntuk Dam project located in West Sumbawa Regency, Indonesia. Based on field observations, it was found that the existing warehouse layout was disorganized, with material placement lacking clear structure, thereby hindering warehouse staff in locating and retrieving required items. Additionally, due to limited storage capacity, not all materials could be accommodated within the warehouse. This condition prompted the need for further study to minimize material damage and inefficiencies in retrieval processes caused by poor organization. This study aims to improve warehouse capacity and layout by implementing the Class-Based Storage method, which categorizes materials into three main classes based on their type and dimensions. As a result, the warehouse was expanded from its original size of 4.7 m × 10.6 m to 14 m × 32 m. The proposed layout organizes materials into three classes: Class 1 comprises solid materials with lengths ranging from 3 to 12 meters; Class 2 includes solid materials shorter than 3 meters; and Class 3 consists of liquid or flammable materials. The analysis showed that the total material handling cost in the initial layout was Rp 2,246,674, which was reduced to Rp 1,068,060 in the proposed layout, indicating a cost efficiency gain of 52.4%. These findings confirm that the Class-Based Storage method is effective in optimizing warehouse layout and reducing internal logistics costs. The study offers practical contributions to warehouse management in construction projects and may serve as a reference for the layout planning of similar infrastructure facilities.

PRODUKTIVITAS DAN STRATEGI PENGEMBANGAN KAPAL POLE AND LINE TERHADAP SUMBERDAYA IKAN CAKALANG (KATSUWONUS PELAMIS) DI KOTA KUPANG NTT

2025-08-27T18:02:55+07:00

The skipjack tuna fishery in NTT plays a vital role in the regional economy, therefore, a study of fishing productivity is necessary to understand the relationship between fishing effort, yield, and stock condition. This study aims to analyze skipjack tuna fishing productivity, assess the energy efficiency of local fishermen, and formulate a sustainable management strategy. The methods used were surveys and field observations, with analysis using CPUE, energy efficiency, and productivity per vessel/fisherman. Management strategies were developed using a SWOT matrix and QSPM. The results showed the highest CPUE in October–November (272.3 kg/trip), vessel productivity 6.9 kg/trip, and fisher productivity 25 kg/person/trip. The highest fuel efficiency was recorded in January (2.1 L/kg of fish). Management strategies include improving catch quality, developing business capital assistance, and renewing the Pole and line skipjack tuna fleet.

PENGARUH RASIO KOMPOSISI LIMBAH PLASTIK DAN SERBUK KAYU TERHADAP KARAKTERISTIK MEKANIK KUAT TEKAN SEBAGAI MATERIAL BANGUNAN RINGAN

2025-05-28T13:21:31+07:00

This study aims to examine the effect of the ratio of plastic waste and sawdust on the mechanical characteristics of alternative lightweight building materials. Plastic waste is used as a thermoplastic binder, while sawdust acts as a lightweight aggregate with insulating properties. The composition of the mixture is varied in several ratios (90:10, 80:20 and 70:30) to determine its effect on the mechanical properties of compressive strength test specimens according to SNI 03-3958:1995 from the resulting mortar product. The manufacturing process involves mixing melted plastic waste with sawdust, then molding and releasing. The test results show that increasing the proportion of sawdust can significantly reduce the compressive strength. Conversely, a higher plastic ratio increases the compressive strength but produces a heavier material. The optimum composition was found at a ratio of 90:10 (plastic: sawdust), which provides a balance between strength, lightness, and insulating properties. This study shows the potential for utilizing plastic waste and sawdust as environmentally friendly building materials with feasible functional performance and in accordance with compressive strength standards.

PERANCANGAN MODEL INTEGRASI INDUSTRI HIJAU DAN SISTEM HALAL PADA IKM PAKAIAN: PENDEKATAN SOSIAL – TEKNIS BERBASIS SOFT SYSTEM METHODOLOGY

2025-06-23T15:42:43+07:00

The demand for products that are not only halal but also environmentally friendly is increasing, especially among Indonesian Muslim consumers. The demand for halal and environmentally friendly products is not limited only to the food industry, but also increasingly expanding to non-food products such as the clothing industry. The clothing industry in Indonesia plays an important role in the growth of the national economy, especially through the contribution of the small and medium industrial sector (SMEs). In the midst of increasing consumer awareness of products that are not only quality, but also ethical and sustainable, there is a need to integrate the principles of halal and environmental sustainability (green industry) in the supply chain of the clothing industry. However, most studies still focus separately on the halal aspect in the food industry or the environmental aspect in the large manufacturing sector, while the synergy of the two in the context of the clothing industry has not been widely studied. This research becomes relevant to answer the complex challenges faced by IKM actors, such as resource limitations, lack of integrative guidelines, as well as regulation and market pressure. Through a systemic approach such as Soft System Methodology (SSM), this research aims to understand real problems, build conceptual models, and formulate strategies for implementing halal integration and green industries contextually in the clothing sector. The research results are expected to contribute to the development of sustainable industrial policies and inclusive certification systems in Indonesia

ANALISIS RISIKO HAZARD UNTUK MEMINIMALISIR POTENSI KECELAKAAN KERJA DI PT. SANTOSA UTAMA LESTARI PADA BAGIAN INTAKE JAGUNG MENGGUNAKAN METODE HAZARD AND OPERABILITY STUDY (HAZOP)

2025-03-12T08:38:44+07:00

PT Santosa Utama Lestari is an agricultural processing company specializing in corn, with a production capacity of 800–1,000 tons per day. The company requires its employees to use personal protective equipment (PPE) such as safety helmets, gloves, protective clothing, and safety shoes. However, observations and interviews revealed potential workplace accidents in the corn intake section due to non-compliance with PPE usage. This study aims to analyze potential hazards and propose improvements to minimize the risk of workplace accidents in this area. The Hazard and Operability Study (HAZOP) method was employed to identify risks, analyze hazards, and develop mitigation strategies. The results identified six potential hazards, including two with an extreme risk level, three with a high risk level, and one with a moderate risk level. Recommended improvements include hazard elimination, engineering controls, equipment or method substitution, administrative measures such as SOP development, and consistent PPE usage. This study is expected to provide practical solutions to reduce the risk of workplace accidents in the corn intake section.

PENGARUH DEFORESTASI TERHADAP TEMPERATUR, KELEMBABAN, CURAH HUJAN, DAN PENYINARAN MATAHARI: STUDI KASUS DI SUMATERA UTARA

2025-06-17T07:25:18+07:00

Climate change due to deforestation is a hot global issue today. This study analyzes the effect of deforestation on temperature, humidity, rainfall, and sunshine duration in North Sumatra Province during the period 2013-2022. A quantitative approach was used with deforestation data from the Ministry of Environment and Forestry (KLHK) and climate data from the Meteorology, Climatology and Geophysics Agency (BMKG). Pearson Product Moment correlation analysis was performed using SPSS version 29. The results showed that the average deforestation in North Sumatra reached 9,884.79 hectares per year. The correlation analysis showed a very weak to low negative relationship between deforestation and the four climate parameters analyzed, namely rainfall (r = -0.292), sunshine duration (r = -0.173), air temperature (r = -0.086), and air humidity (r = -0.056). Statistically, no significant relationship (p>0.05) was found between deforestation and climate variables, most likely due to the limited number of annual samples. This study identified that local factors such as the presence of the large Lake Toba and the conversion of deforested land to plantations act as moderators of the microclimate. This explains the impact of deforestation on temperature and humidity in this region is not always significant as theoretically assumed. Correlations between climate variables also show complex interactions, such as a very strong negative relationship between temperature and humidity (r=-0.974; p<0.001). This study provides important insights into the complexity of deforestation and microclimate interactions in a unique tropical region such as North Sumatra.

PENERAPAN ORANGE DATA MINING UNTUK PEMBELAJARAN SISTEM MANUFAKTUR DISKRIT PADA KASUS KLASIFIKASI DAN KLASTERISASI GAMBAR HEWAN BERBASIS MACHINE LEARNING

2025-02-04T05:54:26+07:00

Politeknik ATI Makassar has introduced technologies such as Artificial Intelligence, Internet of Things, and Big Data Analytics in the Discrete Manufacturing Systems course. This research focuses on the application of Data Science using the Orange Data Mining application for the classification and clustering of animals. The adopted experimental method involves controlling variables by following the CRISP-DM methodology. Evaluation results indicate that the logistic regression model is the best, with an AUC accuracy of 1 and a precision of 0.962. Clustering resulted in two clusters: C1 for cats and C2 for cows, with a silhouette score of 0.145. This research demonstrates the effectiveness of the Orange Data Mining application in teaching discrete manufacturing systems based on machine learning.

NOISE REDUCTION: STUDI ANALISIS BAHAN KULIT SAMAK SEBAGAI MATERIAL PEREDAM SUARA RUANGAN

2025-07-09T12:02:17+07:00

One thing that needs to be considered in providing a comfortable atmosphere is noise. High noise levels can reduce room productivity, therefore effective acoustic materials are needed. Material that can be used as a noise reduction material is leather. Leather is usually used as decoration for interior elements, but never been used as a material that has functional value as a noise reduction, so the research is needed to see whether there is potential for tanned leather as an alternative material for noise reduction. This research aims to obtain data on the potential of tanned leather in dealing with background noise. This research uses an experimental method of chrome-tanned leather (Pull-up) and vegetable-tanned leather, which are measured using a sound level meter. The experimental results provide data that pull up leather and vegetable leather which are used as layer coverings for cardboard have a noise intensity below 75 dB, a safe category that reduces noise based on WHO and can be used as a noise reduction. Another discovery is that pull-up leather absorbs better noise than vegetable leather. This research provide new perspective on noise reduction materials using chrome-tanned leather (Pull-up) material.

ANALISIS FAKTOR YANG MEMPENGARUHI PENGGUNAAN ALAT TRANSPORTASI OLEH MAHASISWA FAKULTAS TEKNOLOGI LINGKUNGAN DAN MINERAL UNIVERSITAS TEKNOLOGI SUMBAWA

2025-07-22T09:31:59+07:00

Since 2020 the number of students at the Faculty of Environmental and Mineral Technology (FTLM), Sumbawa University of Technology (UTS) has increased, and along with the increase in the number of students, it will affect the growth of transportation users. This study aims to analyze the factors that influence FTLM students in using transportation, in this case, FTLM students choose to use private motorcycle vehicles. Data collection using questionnaires and field observations on 86 respondents taken based on random sampling techniques. The data were analyzed using the binary logistic regression method. This method has four model tests, namely assessing the overall model (Overall Model Test), testing the feasibility of the model (Goodness Fit Test), the coefficient of determination and the classification matrix. The results showed that there are 2 factors or variables that are the reasons for FTLM students to use private motorcycle vehicles, namely vehicle ownership and distance to campus.

ANALISIS KEBERHASILAN PENERAPAN PERATURAN WALI KOTA PALU NOMOR 40 TAHUN 2021 TENTANG PEMBATASAN PENGGUNAAN KEMASAN PLASTIK SEKALI PAKAI DAN STYROFOAM

2025-07-06T08:28:21+07:00

Environmental pollution issue from solid waste, especially plastic, is a global concern because it harms ecosystems and human health. A major cause is the use of single-use plastics and styrofoam, which do not break down easily. In Palu City, this problem led to the issuance of Palu Mayor Regulation Number 40 of 2021 concerning the Restriction on the Use of Single-Use Plastic Packaging and Styrofoam. This study evaluates how well this policy has been implemented and its effect on reducing plastic waste. Using descriptive quantitative methods to analyze secondary data of waste generation and achievements in waste handling from the National Waste Management Information System (SIPSN) for the years preceding (2020) and following (2024) the regulation’s implementation. The results show a significant drop in plastic waste from 30.00% to 10.43%, along with decreases in daily and yearly waste amounts. The recycling rate also improved from 0.51 to 0.58, indicating an improvement in waste management, especially through the use of TPS3R. The study recommends stronger public education, better monitoring, and improved facilities to ensure the policy’s success and sustainability in Palu City.

RANCANG BANGUN SISTEM KEAMANAN PINTU RUMAH MENGGUNAKAN INTERNET OF THINGS BERBASIS ESP32-CAM UNTUK PERUMAHAN KABUPATEN SUMBAWA

2025-02-11T17:15:14+07:00

Housing in Sumbawa Regency, West Nusa Tenggara (NTB) is increasing, especially for subsidized and commercial types. For this type of housing, the quality of materials and security of door access are certainly very sensitive and vulnerable to theft or looting. Moreover, housing locations on the outskirts of the city are often abandoned by owners who are active outside the home or even outside the city for work or vacation, resulting in the security level of the home becoming vulnerable. In addition, the security conditions of housing complexes are not accompanied by 24-hour security, which will increase theft/looting of houses and result in owners experiencing losses due to the loss of valuables in the house. To prevent cases of theft crimes, it is necessary to improve the security system, especially at the door of the house. So, to overcome this problem, it is necessary to carry out further research on the design of a home door security system using the Internet of Things and based on Esp32-Cam, which aims to increase security at home. The ESP32 CAM will photograph people/objects via Passive Infra Red (PIR) sensor detection commands and send them in the form of images automatically to Telegram as a notification. Arduino Uno as a door lock solenoid controller via a telegram bot and a manual access controller using a 4x4 keypad. It is hoped that the design of this tool can improve security at residential doors around Sumbawa district.

ANALISIS FORECASTING DEMAND OBAT TABLET DI GUDANG OBAT DINAS KESEHATAN PROVINSI JAWA BARAT

2025-07-18T17:42:34+07:00

The medicine warehouse of the West Java Provincial Health Service is a drug dispensing center which has various data regarding drug dispensing in 2023. Data analysis shows that drugs in tablet form are the most dominant unit in the dispensing process, with total dispensing reaching 3,648 times to all health facilities or City/Regency Health Offices throughout West Java. Given the significance of the use of tablet drugs, this study proposes the application of demand forecasting analysis as a strategy to improve the efficiency of drug inventory management. By predicting the demand for tablet drugs, the West Java Provincial Health Office can more effectively prepare drug stocks, reduce the risk of shortages or excess stock, and respond to high market demand. Based on the results of data processing carried out using the Simple Linear Regression Forecasting analysis of the Antiretroviral (ARV) drug program, the MAPE was obtained at 69%, smaller than the MAPE from the Single Exponential Smoothing Forecasting analysis of 83.780%. Meanwhile, for the Buffer drug program, the Single Exponential Smoothing Forecasting analysis is more accurate than the Simple Linear Regression Forecasting analysis because the MAPE calculation results from the exponential smoothing analysis of 79.088% are smaller than the Simple Linear Regression MAPE calculation of 85%. It is expected that the demand forecasting analysis model can be a strategic tool for the Ministry of Health's drug warehouse in overcoming the challenges of drug inventory management, while reducing overall drug procurement costs.