Rancang Bangun CNC Router 3 Axis Ukir Kayu Untuk Kerajinan Kaligrafi

The Indonesian wood industry is diverse, with wood carving being one of its most popular products. However, the manual wood carving process is not suitable for large-scale production. To address this challenge, a new tool has been developed to increase the production of wood crafts, especially calligraphy carving. This tool is a 3-axis wood carving CNC router machine controlled by a computer and smartphone. The CNC router machine was designed using the CNC Shield V3 and the Arduino Uno R3 motor driver, A4988 as a stepper motor controller. The mechanism applied includes creating vector images programmed with gcode, controlling and engraving calligraphy through software on computers and applications on smartphones with Bluetooth HC – 05 communication with a maximum distance of smaller than 10 meters. Based on control data by computer testing geometry testing circle dimensions of 58 mm x 56 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 01:12, 00:48 and 00:42. Testing Muhammad's carving with dimensions of 100 mm x 100 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 05:22, 03:45 and 03:24. Tests for cutting 12 mm thick MDF wood with a depth 1.5 mm and a feed rate of 5 mm/sec cuts 8 rounds for 13:12 min/sec. The control data by smartphone testing the geometry of the circle with dimensions of 50 mm x 50 mm and a feed rate of 500mm/min with a carving time of 58:43 minutes. Testing Muhammad's engraving dimensions of 70mm x 60mm and feed rates of 500 mm/min, 800 mm/min, and 1000 mm/min with engraving times of 54:34, 39:25, and 35:28. The test for cutting 12 mm thick MDF wood with a depth of 1.5 mm and a feed rate of 500 mm/min-cut 8x rounds for 10:21 minutes/second

Kegiatan Lokakarya Perencanaan Berbasis Data Program Sekolah Penggerak Angkatan I Tahun Ketiga di Kabupaten Soppeng

Data-based planning is the process of collecting, analyzing and using data to determine goals, strategies and activities that will be carried out to improve and increase the quality of education in schools which is very important to understand in the Driving School Program. The aim of this workshop activity is that participants who attend are able to prepare data-based plans which will later produce Annual Work Plans (RKT) and School Work Plans and Budgets (RKAS) which are part of data-based planning in schools. The method used in the form of a data-based planning workshop is participatory from the learning committee, namely the principal and elementary school teachers of each school, including from 4 levels of elementary school, namely SDN 100 Dare Bunga-Bungae, SDN 118 Ujung, SDN 238 Laempa, and SDN 5 Mattiropole in the area. Soppeng Regency. The data-based planning workshop activity was held on Saturday 11 November 2023 at SMPN 3 Watansoppeng by involving participants directly during the activity with a flow of activities starting from the opening, starting from the self, concept exploration, collaboration space, contextual demonstration, real action plan and closing. The final result of this data-based planning workshop activity is a draft product of the Annual Work Plan (RKT) and School Work Plan and Budget (RKAS). Thus, these data-based planning activities can have a positive impact on each school in the Class I Driving School Program, which can strengthen various participants' skills and competencies in preparing designs related to data-based planning, thereby encouraging digitalization in school

Analisis Pembentukan Endapan pada Transportasi Gas Alam Pengaruh Tekanan, Temperatur, dan pH.

Natural gas production areas and processing sites for use in the residential and industrial sectors are separated by a long distance. Contaminants such as H2S and CO2 are present when natural gas is transported. The reaction process that occurs in the pipe walls will experience a reduction in material. A process that occurs repeatedly over a long time will form deposits at the bottom of the pipe. This research investigates the sludge produced by the pigging process every month. The sludge characters are identified using SEM and XRD testing, while the condensate is examined using XRF testing. The XRF results show that the presence of Cl- in the condensate increases the anodic reaction in the corrosion process. Condensate has a pH of 5-6, which will cause corrosion around internal piping. Sludge produces Fe3O4, FeS, and FeCO3. Fe3O4 is more dominant than FeS and FeCO3. More FeS is produced by % mol H2S than by % CO2. Because of the existing FeS, the particles formed are irregular

Analisis Simulasi Numerik Defleksi Balok Baja ST60 dengan Variasi Pembebanan dan Tumpuan

This research aims to analyze the deflection that occurs through numerical simulation using Ansys Software in static structural modeling on an ST 60 steel square beam. The variables in this study are loads of 10, 15, and 20 N, as well as the types of supports, namely fixed-fixed, fixed-roller, and hinge-roller. The results show that the larger the load, the greater the deflection that occurs. The maximum deflection occurs at a load of 20 N. The fixed-fixed and hinge-roller supports show maximum deflection at a distance of 400 mm, while the fixed-roller support shows maximum deflection at a distance of 450 mm. Among the three types of supports used in this study, the simple support (hinge-roller) results in greater deflection compared to the fixed-fixed and fixed-roller supports. The hinge-roller support results in a deflection of 1.212 mm, the fixed-roller support results in a deflection of 0.541 mm, and the fixed-fixed support results in a deflection of 0.302 mm.

Evaluasi Pengolahan Sampah menjadi Refuse Derived Fuel pada TPST Mengwitani Badung, Bali

Badung Regency is the fourth city which is the largest waste producer in Bali Province, with the amount of waste production in Badung Regency in 2022 reaching 119,475 tons per year. On the other hand, the generated waste is only disposed of at the Suwung Final Disposal Site (TPA), without prior processing. However, as of March 2023, the Bali Provincial Government has begun to gradually close the Suwung TPA, due to waste overcapacity, as evidenced by the presence of rubbish piles as high as 25 meters. In response to this, the Badung Regency Environmental Service (DLH) built the Mengwitani Integrated Waste Processing Site (TPST), where waste is processed into Refuse Derived Fuel (RDF) with the aim of reducing waste generation in Badung Regency. This research aims to evaluate the process of processing waste into RDF at the Mengwitani TPST, so that it can be seen how much waste generation can be reduced through RDF processing at the Mengwitani TPST. The method used is a quantitative method, with a mass balance analysis approach. Therefore, it was found that processing waste into RDF was carried out by going through 5 stages of filtering or segregation. So, after processing the waste into RDF, it was found that the potential for waste reduction at the Mengwitani TPST reached 72% every day, and on the other hand, the RDF produced by the Mengwitani TPST had been adjusted to standards, namely SNI 8966:2021

Review Pelaksanaan Pengawasan Dinas Lingkungan Hidup Kabupaten Karawang Terhadap Pengelolaan Limbah Bahan Berbahaya dan Beracun oleh Kegiatan Industri

The Karawang Regency Government has a target to make Karawang Regency an industrial city. Based on open Jabar 2021 data, there are 1,608 industries in Karawang Regency, which has many negative impacts on the environment. Many industrial production processes use hazardous and toxic materials. The number of industries in Karawang Regency will increase the amount of hazardous and toxic waste that will be produced. Therefore, the supervision of industries is assigned to the Environmental Agency of Karawang Regency. This study aims to determine the supervisory function carried out by the Environmental Agency of Karawang Regency in the management of hazardous and toxic waste in industrial activities in Karawang Regency. The method used is by conducting direct observations and interviews at Environmental Agency of Karawang Regency with a span of 4 months. Based on the results of the research that has been carried out, Environmental Agency of Karawang Regency has carried out supervision of hazardous and toxic waste management properly and is in accordance with applicable laws and regulations, namely Law Number 32 of 2009. Supervision priority is given to industries that have potential violations, locations vulnerable to pollution, and high-risk activities. This effort aims to protect the environment, public health and sustainable natural resources. Supervision is conducted directly and indirectly. The management of hazardous and toxic waste has covered all aspects starting from the environmental documents to the hazardous and toxic waste managementPemerintah Kabupaten Karawang memiliki target menjadikan Kabupaten Karawang sebagai kota industri. Berdasarkan data open Jabar 2021 perindustrian yang ada di Kabupaten Karawang yaitu 1.608, hal ini membawa banyak dampak negatif pada lingkungan. Proses produksi industri banyak yang menggunakan bahan berbahaya dan beracun. Banyaknya perindustrian yang ada di Kabupaten Karawang akan semakin banyak limbah bahan berbahaya dan beracun yang akan dihasilkan. Maka, dilakukannya pengawasan terhadap perindustrian yang ditugaskan kepada Dinas Lingkungan Hidup Kabupaten Karawang. Penelitian ini bertujuan untuk mengetahui fungsi pengawasan yang dilakukan oleh Dinas Lingkungan Hidup Kabupaten Karawang dalam pengelolaan limbah bahan berbahaya dan beracun pada kegiatan industri yang ada di Kabupaten Karawang. Metode yang digunakan adalah dengan melakukan observasi dan wawancara secara langsung di Dinas Lingkungan Hidup Kabupaten Karawang dengan rentang waktu 4 bulan. Berdasarkan hasil penelitian yang telah dilakukan, Dinas Lingkungan Hidup Kabupaten Karawang telah melakukan pengawasan pengelolaan limbah bahan berbahaya dan beracun dengan baik dan sudah sesuai dengan peraturan perundang-undangan yang berlaku yaitu Undang-Undang Nomor 32 Tahun 2009. Prioritas pengawasan diberikan kepada industri yang memiliki potensi pelanggaran, lokasi rentan akan pencemaran, dan kegiatan beresiko tinggi. Upaya ini bertujuan untuk melindungi lingkungan, kesehatan masyarakat dan sumber daya alam berkelanjutan. Pengawasan dilakukan secara langsung dan tidak langsung. Pengelolaan limbah bahan berbahaya dan beracun sudah mencangkup semua aspek mulai dari dokumen lingkungan, pengemasan, penyimpanan limbah bahan berbahaya dan beracun sampai dengan kerja sama oleh pihak ke-3 dan rincian teknis pengelolaan limbah bahan berbahaya dan beracun. Dinas Lingkungan Hidup Kabupaten Karawang dapat mencapai target total pengawasan yang direncanakan pada tahun 2023 yaitu sebanyak 60 perusahaan yang difokuskan pada sekitar aliran sungai Citarum

Karakterisasi Air Hasil Filtrasi Instalasi Pengolahan Air Sederhana Berdasarkan Variasi Waktu Filtrasi dan Ketebalan Media Arang Ampas Teh

The increase in population and the development of the industrial sector have resulted in water pollution and a decrease in the quality of clean water. Water treatment with filtration method is an effort to reduce the concentration of pollutants in water using adsorbents. This study aims to test the quality of water filtration results using a simple water treatment plant with tea grounds as the adsorbent. The media used in the simple water treatment plant are coconut fiber, zeolite sand, silica sand, tea grounds, gravel, and sponge. The water quality parameters tested were TDS (Total Dissolved Solid) analysis, pH analysis, organoleptic analysis, total hardness analysis, fixed hardness, temporary hardness and COD analysis. The independent variables in this study were the thickness of tea pulp media (0 cm, 3 cm, 5 cm, and 7 cm) and filtration time (20 minutes, 40 minutes, and 60 minutes). The results showed that the combination of tea pulp media height and process time had no significant effect on TDS, pH, hardness, COD, and organoleptic values. The optimum condition of tea pulp media height and process time with filtration-adsorption process for pH characteristics is in the treatment of 0 cm charcoal height, on the characteristics of total hardness and fixed hardness is in the treatment of 0 cm charcoal height and 20 minutes process time, while the optimum condition of temporary hardness is in the treatment of 7 cm charcoal height and 20 minutes process time

Variasi Lama Waktu Elektrokoagulasi dan Filtrasi Terhadap Degradasi Kadar COD pada Limbah Cair Rumah Sakit

Hospital wastewater is a source of environmental pollutants derived from medical services, including domestic waste and clinical waste from various rooms, so an appropriate treatment system is needed. X hospital wastewater has an average COD level of 101.69 mg/L. The purpose of this study was to determine the effectiveness of electrocoagulation and filtration exposure in reducing COD levels in hospital wastewater. This study uses an experimental method by measuring the dependent variable before and after treatment, but without using a control group. There are 3 treatments with a duration of 10 minutes, 15 minutes and 20 minutes with 6 repetitions. The sampling technique used was grab sampling with 36 samples. The results of laboratory examinations show that the electrocoagulation and filtration methods can degrade COD levels with an average percentage reduction in 10 minutes of 70.54%, the percentage reduction in COD levels in 15 minutes of 73.47%, and 77.80% for 20 minutes. Statistical tests using anova obtained a value of p = 0.009, it can be concluded that there is a significant difference in the length of time of electrocoagulation. So that electrocoagulation and filtration methods can be implemented in degrading COD levels in hospital wastewater

Pelatihan Pembuatan Laporan Keuangan Pada UMKM Kampung Madu Kabupaten Kediri

This community service activity by the Faculty of Economics and Business team of Universitas Brawijaya aims to share the knowledge and skills of MSME actors in conducting bookkeeping and preparing financial statement activities. This activity is very much needed because MSME activists still lack knowledge and skills in bookkeeping, preparing financial reports so that it is difficult to know the position of their business profit or loss. In addition, by having financial reports, MSMEs that experience obstacles in accessing financing or obtaining tax incentives can be resolved. The method of implementing this community service consists of socialization activities, training activities and evaluation for participating MSMEs. The activities were carried out for MSME players in Kampung Madu, Badas Village, Kediri Regency.  The training covered topics such as financial literacy and financial application. Upon completion of the training, MSME participants gained a deeper understanding of the importance of financial literacy, financial reporting and the use of technology in financial reporting. This training makes increased awareness can provide significant benefits for MSME actors, especially by strengthening financial strategy efforts and improving the welfare of MSME stakeholders

Grand Design and Economic Analysis of Solar-Wind Hybrid Renewable Energy Systems in MSTP Jepara

Marine Science Techno Park (MSTP) Jepara is a center of technology implementation aimed to encourage community economy development in the maritime sector. At present, Marine Science Techno Park (MSTP) Jepara’s electrical energy source is supplied by Perusahaan Listrik Negara (PLN), with coal-powered steam turbine generators as the main source of electrical energy generation. Therefore, a cleaner and more sustainable means of electrical energy generation is needed to fulfill the high energy demand. With this in mind, Universitas Diponegoro, as the proposer, in collaboration with MSTP Jepara, as the recipient, proposes the initiation of Hybrid Renewable Energy Systems (HRES) Power Plant construction as a way of obtaining an environmentally friendly and sustainable source of energy in this research as well as addressing the issues in the previous HRES simulations and implementations. This article will discuss various scenarios, their feasibility for implementation, and the economic returns gained from HRES installation on-site