bluuebunny/crossref_metadata_2025 huggingface dataset:
Usulan Penerapan Metode Statistical Process Control pada Pengendalian Kualitas Produk Cacat Benang Combed 30s
Authors: Mahendra Deni , Subagyo Ade Momon , Almahdi Dika
Published: April 2023

Abstract The current condition of industrial competition is not only competing with local companies, but also with foreign companies. Therefore, companies must have the ability to maintain customer loyalty and satisfaction, one of which is by maintaining product quality. This study aims to analyze the rate of occurrence of defects in combed 30s yarns and to propose improvements to reduce the occurrence of defects. Data analysis was carried out to achieve the goal, namely by using the Statistical Process Control method with data in the form of the amount of production, defective products, to the work processes that occur. The data was obtained from the results of documentation, interviews, and also observations of the research object. From the analysis carried out, the results are that there are still data that are out of control limits and the dominant defect is tangled with 43.53%. The causes of these defects consist of human, machine, method, and material factors. The suggestions given in this study in an effort to suppress defective products are adjustments to product quality standards, thread sorting procedures, machine cleaning schedules, SOP adjustments and increased employee knowledge regarding work procedures.Keywords: Combed 30s, Defect, Product, Quality, SPC AbstrakKondisi persaingan industri saat ini tidak hanya bersaing dengan perusahaan lokal, namun juga dengan perusahaan asing. Oleh karena itu, perusahaan harus memiliki kemampuan dalam menjaga kesetiaan dan kepuasan konsumen salah satunya dengan menjaga kualitas produk. Penelitian ini ditujukan untuk menganalisis tingkat terjadinya produk cacat pada benang combed 30s serta memberikan usulan perbaikan untuk menekan terjadinya cacat. Analisis data yang dilakukan untuk mencapai tujuan yaitu dengan metode Statistical Process Control dengan data berupa jumlah produksi, produk cacat, hingga proses kerja yang terjadi. Data tersebut didapatkan dari hasil dokumentasi, wawancara, dan juga observasi pada objek penelitian. Dari analisis yang dilakukan didapatka hasil yaitu masih terdapat data yang keluar batas kendali dan cacat dominan yaitu kusut dengan 43,53%. Penyebab cacat tersebut terdiri dari faktor manusia, mesin, metode, dan material. Usulan yang diberikan dalam penelitian ini dalam upaya menekan produk cacat yaitu adanya penyesuaian standar kualitas produk, adanya prosedur penyortiran benang, adanya jadwal pembersihan mesin, serta penyesuaian SOP dan peningkatan pengetahuan karyawan terkait prosedur pekerjaan.Kata Kunci: Combed 30s, Cacat, Produk, Kualitas, SPC
Potensi Produksi Bio-Oil dengan Metode Pirolisis Katalitik Menggunakan Katalis Zeolit dari Ampas Tebu: Studi Literatur
Authors: Alfia Sumarno Winda Sari , Lestari Diani
Published: April 2023

Bagas adalah ampas tebu dari proses penggilingan atau pengepresan tebu, terdiri dari serpihan lunak dalam jumlah besar dengan kadar air 46-52%, kadar serat 43-52%, dan padatan terlarut sekitar 2-6%. Sejauh ini baru 30-50% ampas tebu yang telah digunakan di Indonesia. Kandungan lignoselulosa yang tinggi pada ampas tebu memungkinkan untuk digunakan sebagai bio-oil. Produksi bio-oil dapat diperoleh dengan cara pirolisis, proses ini diklasifikasikan menjadi 3 jenis yaitu slow pyrolysis, fast pyrolysis dan flash pyrolysis. Pirolisis katalitik telah terbukti meningkatkan bio-oil dengan menghilangkan spesies oksigen, meningkatkan nilai kalor, menurunkan viskositas dan meningkatkan stabilitas. Katalis berbasis zeolit (ZSM-5) paling sering digunakan untuk perengkahan dan dehidrasi polimer. Artikel ini membahas produksi bio-oil dengan pirolisis katalitik menggunakan katalis zeolit dari ampas tebu sebagai bahan alternatif di Indonesia.
Estimasi Penurunan Emisi Pencemar Udara Pengaruh Dari Pengoperasian Bus Rapid Transit (BRT) Di Kota Bandung
Authors: Restiana Dina Indri , Permadi Didin Agustian
Published: April 2023

Peningkatan volume kendaraan bermotor sejalan dengan perkembangan jumlah penduduk di suatu kota dimana emisi dari sektor ini dapat berdampak terhadap kesehatan masyarakat dan lingkungan sekitar, upaya pemerintah Kota Bandung dalam mengatasi hal ini adalah dengan menjalankan program Bus Rapid Transit (BRT). Penelitian ini bertujuan sebagai studi kelayakan dengan mengestimasi besaran emisi dari sumber bergerak serta dampak penurunan emisi terhadap operasional BRT menggunakan aplikasi model TEEMP. Estimasi beban emisi diperoleh dari metode perhitungan berbasis panjang perjalanan rerata kendaraan per tahun (VKT) dimana total beban emisi yang dihasilkan di Kota Bandung tahun 2020 yaitu parameter CO sebesar 200.085 ton/tahun, NOx sebesar 29.175 ton/tahun, SOx sebesar 680 ton/tahun, dan PM sebesar 7.657 ton/tahun. Pengoperasian model TEEMP dilakukan dalam beberapa skenario yang bervariasi terhadap persentase shifting dan pembagian jenis bahan bakar yang digunakan BRT. Semakin besar persentase shifting dari kendaraan pribadi menjadi pengguna BRT maka semakin besar pula nilai penurunan emisi yang terjadi.
Analisis Pengukuran Kinerja Perusahaan Melalui Key Performance Indicator Pada PT. XYZ
Authors: Damayanti Ditya Ayu , Fitriani Risma , Wahyudin Wahyudin
Published: April 2023

PT.XYZ adalah salah satu perusahaan yang bergerak di bidang perdagangan olahan minyak bumi, sehingga penggunaan Key Performance Indicator (KPI) sudah diterapkan di PT.XYZ untuk mengukur pencapaian kinerja teknis sebuah perusahaan. Penilaian kinerja adalah metode untuk mengukur kontribusi anggota organisasi individu untuk organisasi. Faktor penting bagi perusahaan yaitu Penilaian kinerja dapat digunakan untuk mengukur seberapa baik kinerja perusahaan dalam menggapai visi serta misi perusahaan dalam mencapai tujuan perusahaannya. Penelitian ini menerapkan metode Balanced Scorecard dengan memerlukan empat perspektif untuk menjabarkan perspektif yang ada dalam Key Performance Indicator (KPI) yaitu perspektif finansial, perspektif pelanggan, perspektif bisnis internal, dan perspektif pembelajaran dan pertumbuhan. Sedangkan, dalam tahap Key Performance Indicator (KPI) menghasilkan sebanyak 27 indikator dalam penelitian ini diantaranya yakni Financial dengan 2 indikator, Costumer Focus dengan 11 indikator, Internal Process dengan 11 indikator, dan yang terakhir Learning and Growth dengan 4 indikator. Sehingga performance pada PT. XYZ yaitu sebesar 100% berada pada posisi Sangat Besar.
Analisis Faktor Keterlambatan Dominan Pada Proyek Pemeliharaan Jalan (Studi Kasus: Jalan Seksi Sp. Dodinga – Sofifi – Akelamo – Payahe – Weda)
Authors: Payapo Abdul Hamid , Marsaoly Nurmaiyasa , Gaus Abdul , Rauf Ichsan , Hakim Raudha
Published: April 2023

Road maintenance work or road preservation is very important to be carried out as a government effort to maintain the functional sustainability of the road. The delay in the implementation of this activity will not only have an impact on accessibility between regions, but will also cause losses for the contractor and project owner. The factors causing delays in the implementation of road preservation work vary widely and are different in each region. Thus, an understanding of these factors will provide important information in the management of future projects. This study conducted to analyze the dominant factors that cause the delays of road preservation projects in North Maluku, where the case study is in the Sp. Dodinga – Sofifi – Akelamo – Payahe – Weda, this road has length of ± 141 km. Respondents in the study are people who are directly involved in the implementation of this work. A statistical approach was carried out in this study, where the independent variables used included: Finance (X1), Human Resources (X2), Materials (X3), Equipment (X4), Work Implementation Methods (X5), Design Changes (X6), and Work Environment (X7), while for the dependent variable is Time (Y1). The results of this study indicate that the dominant factors influencing the timely completion of road preservation work at the study location are Finance (X1), Human Resources (X2), Materials (X3), and Equipment (X4) with a percentage value of 43.89%.
Analisis Pemeliharaan Mesin Extrusion Press Pada Produksi Ban Dengan Menggunakan Penerapan Total Productive Manitenance (TPM) di PT. XYZ
Authors: Pratama Faza Roshandika , Wahyudin Wahyudin
Published: April 2023

PT. XYZ is a company that produces motorcycle and car tires. This company has a fairly broad product market, so the products it manufactures have good product quality. In producing tires, one of the machines used in producing tires is an extrusion press machine. In carrying out its production, the extrusion press experiences downtime in the period August-December 2022, where the biggest downtime occurs in August, which has a downtime of 1890 minutes. After conducting an analysis using the Overall Equipment Effectiveness method to determine the level of effectiveness of the extrusion press machine, the OEE value calculation results from the August-December 2022 range are less than the international standard value of 85%. so we need an increase in the OEE value on the extrusion press machine. In increasing the OEE value, better engine maintenance is needed, so the Total Productive Maintenance (TPM) method is used as an effort to make engine maintenance even more effective.
Analisis Produktivitas pada PT XYZ Menggunakan Metode Objective Matrix
Authors: Al Hafiz Difa Afgan , Fitriani Risma , Wahyudin Wahyudin
Published: April 2023

PT XYZ is trying to increase its productivity because some of this time it is still considered ineffective. Productivity measurements based on fragrance output and the inputs used are the use of raw materials, the amount of labor, machine hours, and electrical energy used. Based on these problems, Objective Matrix (OMAX) is used as a measurement of productivity on the production line. The data used is data from January 2022 to May 2022. The results of the performance indicators that can be achieved by the company during the period January 2022 to May 2022 experienced productivity fluctuations. The highest productivity increase happened in the April 2022 period, at 146.67, while the lowest decline in productivity occurred in the February 2022 period, at -13.33. The factors that need to be improved are the number of employees, the machine's working hours, and the amount of electrical energy utilized.
Pemilihan Metode Peramalan yang Tepat Untuk Meramalkan Permintaan Piston Cup Forging di Perusahaan Spare-part Kendaraan
Authors: Sari Theodora Edita , Winarno Winarno
Published: April 2023

The demand for Piston Cup Forging in spare-part companies every period has increased and decreased, which causes uncertainty about product demand. In this case, the company needs to do demand forecasting. There are various methods of doing forecasting. Companies must choose the best forecasting method, so that companies can make decisions more effectively and efficiently. This research aims to compare the best forecasting methods to apply for companies. The methods that will be compared in this research are Moving Average 3 monthly and 5 monthly, and Exponential Smoothing with α = 0,1; α = 0,5; and α = 0,9. The error accuracy calculations used are Mean Absolute Deviation (MAD), Mean Squared Error (MSE), and Mean Absolute Percentage Error (MAPE). From the results of calculations and analysis, the method that has the lowest error rate is the Exponential Smoothing method with α = 0,1, with MAD of 16.695, MSE of 510.645.732, and MAPE value of 61%. So in estimating the demand for Piston Cup Forging over the upcoming period in spare-part companies can use the Exponential Smoothing method with α = 0,1.
Analisa Keuntungan dan Penugasan Menggunakan Metode Simpleks dan Hungarian (Studi Kasus: UMKM Aneka Kerupuk Setuju)
Authors: Firmansyah Taufik Akbar , Nugraha Asep Erik , Cahyanto Wahyu Eko
Published: April 2023

Analisis dan Penugasan UMKM dengan teknik riset operasi untuk memecahkan masalah yang dihadapi oleh UMKM menjadi sebuah solusi jitu dalam mengantisipasi ketidakstabilan profit pada masa pandemi Covid-19. UMKM adalah suatu usaha yang dimiliki oleh perorangan atau organisasi bisnis yang memenuhi standar usaha mikro. UMKM yang diteliti berada di salah satu kecamatan di Kabupaten Karawang. Produk yang dihasilkan oleh UKM ini hadir dalam berbagai bentuk kerupuk seperti kerupuk jengkol, udang, rambak dan kerupuk putih. Untuk menganalisis permasalahan yang ada pada UMKM tersebut digunakan metode sederhana yaitu Integer Linear Programming untuk mencari keuntungan optimal dari UMKM tersebut dan metode Assignment Hungarian untuk menangani permasalahan penugasan agar lebih optimal. Hasil penelitian menunjukkan bahwa dalam pemrograman linier, metode simpleks diketahui memberikan hasil yang maksimal. Maka dari itu, penjualan kerupuk harus difokuskan terhadap kerupuk Rambak (X3) yang dijual seharga Rp. 6.000.00,-. Kemudian, untuk metode Hungarian, waktu optimal yang dihasilkan adalah total 205 menit per hari. Kemudian selain menggunakan cara perhitungan manual juga digunakan alat hitung dengan menggunakan software POM-QM dan dihasilkan jumlah yang sama untuk masing-masing cara.
A Study Of Bioconversion Method For Milk Waste Treatment Using Black Soldier Fly Larvae
Authors: Sinaga Vennalia Rahmawati , Masjud Yunita Ismail
Published: April 2023

Milk waste can be managed by the composting method with the help of Black Soldier Fly larvae. The bioconversion process is a process of decomposing organic waste through a composting process using natural microorganisms to produce products in the form of humus and black soldier fly larvae. This study aims to find out how the variation in the composition of the maggot feed media on wet weight, dry weight, and black soldier fly larvae reduction rate on maggot protein quality meets the general standard of maggot crude protein. content in the range of 30-50%. The method used is a non-factorial Completely Randomized Design with follow-up tests Analysis of Variance (ANOVA), Least Significance Different (LSD) test and T-test. The highest average dry weight was obtained from treatments B and C, namely treatment B 266.5 g and treatment C 213.65%. The highest level of waste reduction was obtained from treatment C with a waste reduction index of 4.96%. Then on the results of the T test the average protein content obtained in treatment C with an average protein content of 29.59% meets the quality standard for general protein content for alpha levels (α = 0.05).
Analisis Penerimaan Siswa Baru dan Sarana Prasarana Bengkel Permesinan dengan Metode SWOT di SMK Nurul Islam
Authors: Yaqin Alamul , Rizqi Akhmad Wasiur , Hidayat Hidayat
Published: April 2023

Nurul Islam Vocational School is a school that runs a business in the field of vocational education, namely Mechanical Engineering (TPM), Electrical Power Installation Engineering (TITL), Office Management Automation (OTKP). led to a decrease in the number of students in the SMK. The purpose of this study is to analyze existing internal and external resources and determine the appropriate method to be used to improve school quality so that it can attract public interest in using the SWOT method to survive and compete with other schools. In this research, different research methods, both quantitative and qualitative, are used to describe the realities of the area. The results obtained from the results of the SWOT analysis give an IFE value of 3.43, while an EFE value of 3.56. Therefore, the IE matrix of Nurul Islam Vocational School, several development strategies and solutions show that the SWOT matrix of Nurul Islam Vocational School is located in quadrant I. Vocational High School entrance fees are affordable is the second-choice alternative for parents if their child is not accepted at public high school as an effort to make it easier for student parents to choose a school.
Analisis Postur Tubuh Pekerja Menggunakan Metode Quick Exposure Checklist dan Rapid Upper Limb Assessment Pada Bagian Bag Filling
Authors: Mufied Ahmad Yanshari , Herwanto Dene
Published: April 2023

Dalam kegiatan produksi tidak terlepas dari operator, dalam interaksi antara manusia dan mesin tersebut membutuhkan postur tubuh yang baik agar produk yang dikeluarkan lebih optimal. Sering kali para pekerja mengalami nyeri otot saat melakukan pekerjaan terutama pada bagian leher dan punggung, hal tersebut dikarenakan oleh postur kerja yang tidak ergonomi sehingga berakibat pada tingginya terjadi risiko cedera musculoskeletal disorder. Agar hal tersebut terantisipasi maka bisa dengan melakukan analisis pada postur tubuh sehingga pekerja merasa nyaman dengan pekerjaannya dan produk yang dikeluarkan menjadi optimal. Metode yang digunakan dalam melakukan perhitungan pengolahan data postur tubuh yaitu dengan metode Quick Exposure Checklist (QEC) dan metode Rapid Upper Limb Assessment (RULA). Hasil yang didapatkan setelah menghitung data yang didapatkan yaitu pada metode QEC postur tubuh pekerja mendapatkan nilai sebesar 96,29% yang memiliki arti bahwa postur tubuh tersebut perlu tindakan perubahan secepatnya, sedangkan hasil dari metode RULA mendapatkan skor 7 sehingga postur tubuh membutuhkan perubahan postur dalam bekerja sekarang juga. Perbaikan yang perlu dilakukan pada pekerja tersebut yaitu dengan memperhatikan postur tubuh saat bekerja yang mana tubuh diusahakan tegak dan posisi tubuh jangan condong ke depan dan juga pada tempat kerja perlu penyesuaian dengan tubuh pekerja agar pekerja bisa melakukan pekerjaannya dalam keadaan berdiri.Kata Kunci: postur kerja, QEC, RULA, Musculoskeletal Disorder, ergonomi.
Strategi Pemantauan Kualitas Air Bersih pada Rumah Tangga Miskin di Kampung Holtekamp, Kota Jayapura, Papua
Authors: Balabuana Gaspar Bao , Sanito Raynard C. , Alfons Alfred B.
Published: April 2023

Jayapura City is an indicator of Papua's development in general. In 2012, the city of Jayapura had 25,653 poor households, with a total population of 102,612. Muara Tami District is a district with a total number of households that reaches 86.6%. The highest population density is in Muara Tami district, located in Holtekamp village with a total of 243 households. Clean water quality includes physical, chemical and biological parameters. Determination of precise parameters based on pollutant sources and determination of sampling points, as well as the weather are effective means of cost-efficiency in air quality monitoring. The results of the analysis show that the dug wells of Holtekamp village residents are in the category of heavy pollution. Most of the physical - chemical - biological conditions of the air did not meet the class I air quality standards. The lowest COD value was 25 mg / L and reached 35 mg / L, as well as the lead content (Pb), the lowest was 0.035 mg/L and the highest was 0.37. mg / L, while the lowest E. Coli content was 29 MPN / 100 mL and the highest was 390 MPN / 100 mL. This is due to poor sanitation and construction of dug wells. Keywords: Holtekamp, dug wells, water pollution
Teknik Proyeksi Bisnis Forecasting Penjualan Menggunakan Metode Rata-Rata Trend di Storing Coffee Karawang
Authors: Zacky Ricko Naufal , Wahyudin Wahyudin , Dhuha Syamsi
Published: April 2023

This research aims to determine the sales level of UMKM Storing Coffee in order to develop an appropriate marketing plan, thus increasing sales profitability. Forecasting is a technique used to predict future values using historical data. This research was conducted on a UMKM that specializes in Coffee beverages, namely Storing Coffee in Karawang city. This research was conducted by observing the sales forecasting analysis of coffee beverage products. The forecasting method used was an average with a trend analysis. Analysis was performed by comparing the smallest margin of error using the trend analysis method. Trend analysis is a technique used to determine the extent of fluctuations and factors that influence them. The profitability ratio is used to evaluate the effectiveness of business management. The higher the profitability ratio, the better because it means that the business owner obtains higher profits.
Usulan Pengendalian Risiko Keselamatan Dan Kesehatan Kerja Menggunakan Metode HIRARC di PT Buana Niaga Bersama
Authors: Dwiansyah Priana , Kusnadi Kusnadi
Published: April 2023

PT Buana Niaga Bersama Karawang is a manufacturing company that produces retreaded tires, this company uses mold machines and boiler machines. This study aims to analyze the application of safety and health from the beginning of the production process to finished goods, because this company has not fully implemented occupational safety and health, for example workers do not use safety shoes, carry raw materials manually. This research is a descriptive research that explains the application of occupational safety and health in the production area of PT Buana Niaga Bersama, the method used is HIRARC (Hazard Identification, Risk Assessment and Risk Control) with the first stage namely identifying potential hazards, then evaluating potential hazards and the last stage namely the control of potential hazards. The results of this study are based on the identification of potential hazards, there are 24 cases of potential hazards, with a risk assessment that there are as many as 62% or 15 cases of potential hazards with low risk (low risk), as many as 25% or 6 cases of potential hazards with moderate risk (medium risk). and as many as 13% or 3 cases of potential danger with severe risk (extreme risk). Suggestions for company owners are to provide personal protective equipment and establish standard operating procedures, while for workers, namely to work according to standard operating procedures and use personal protective equipment while working.
Identifikasi Faktor Penyebab Kerusakan Sempadan Sungai (Studi Kasus: Sungai Pami, Distrik Manokwari Utara – Kabupaten Manokwari, Papua Barat)
Authors: Kurnia Sari Ceni Febi , Wanggai Charly Bravo
Published: April 2023

Damage to the Pami Riverbank in the North Manokwari District, West Papua Province, is generally caused by the socio-economic and cultural activities of the community in the DAS (Daerah Aliran Sungai), which is a part of human intervention against natural systems in the DAS, such as development-cultivated land in the watershed. The increasing population growth and the demand for natural resources, including water, soil, land, and forests, can result in changes in watershed conditions. One of the buffer areas is the riverbank. The riverbank location functions as a buffer region at the proper and left components of the river. It provides ecological services for filtering runoff water and keeping nutrients and sediment that can be transported with floor runoff. The damage to the Pami River's borders becomes delivered about extra using natural elements, along with erosion, fallen bushes, landslides, and excessive river water discharges that motive cliff erosion in the middle and pinnacle reaches of the Pami River. Riverbank erosion occurs because of solid water runoff, in addition to the soil type factor in the Pami River, which is easily eroded due to the poor physical properties of the soil and is very sensitive to erosion and the soil slope factor.
Penerapan Line Balancing Produksi Arm Rear Brake dengan Metode Ranked Positional Weight di PT. Ciptaunggul Karya Abadi
Authors: Novianti Elsa , Herwanto Dene
Published: April 2023

Pada kegiatan setiap work station diusahakan agar waktu proses serta tenaga kerja tetap optimal. Tujuan penelitian ini untuk menghitung jumlah work station yang dibutuhkan oleh perusahaan agar produksi Arm Rear Brake KWBF mendapat keseimbangan lini yang optimal, meningkatkan efisiensi lintasan kerja pada proses produksi serta menurunkan jumlah waktu menganggur (idle time) yang terjadi pada produksi Arm Rear Brake. Salah satu metode yang digunakan untuk menyesuaikan penyeimbangan work station yaitu metode Ranked Positional Weight (RPW). Penerapan konsep penyesuaian lini produksi  dengan memakai model RPW digunakan agar menghasilkan kenaikan efisiensi kerja dan menurunkan waktu menganggur. Pada kondisi awal dengan jumlah stasiun kerja sebanyak 8 mendapat efisiensi lintasan sebesar 58,69%, namun setelah menggunakan metode RPW mengalami perubahan menjadi 78,26% dengan jumlah stasiun kerja sebanyak 6. Smoothness Index yang dihasilkan sebesar 0,70 sedangkan dengan menggunakan metode rank positional weight memperoleh penurunan menjadi 0,42. Semakin kecil nilai dari Smoothness Index yang dihasilkan dari perhitungan Smoothness Index maka akan semakin mendekati nilai keseimbangan yang sempurna. Dengan menurunnya waktu menganggur juga akan meningkatkan outp ut yang dihasilkan.
Application of Statistical Quality Control Methods to Sarong Product Quality at UD. Utomo Joyo
Authors: Syukri Ahmad Watsiqul , Jufriyanto Moh. , Rizqi Akhmad Wasiur
Published: April 2023

UD. Utomo Joyo has problems related to monthly production defects, where the company has a maximum defect target of 5% of total production for one period, but the defects that occur exceed estimates. This study aims to find solutions to improve the application of the Statistical Quality Control method to the quality of sarong products at UD. Utomo Joyo using Seven Quality Control Tools (7 QC), namely flowcharts, checksheets, histograms, control charts, pareto diagrams, scatter diagrams, and fishbone diagrams. The results of the analysis and discussion show that there are 2 types of product defects such as yarn break defects and color fade/flex defects, while the most common or dominant defect is yarn break defects with a percentage of 68.3%. The findings of these defective products are still within the control limits of UCL and LCL. The proposed improvements are rescheduling to check tools regularly, providing adequate and safe lighting facilities for eye health, providing SOP education to workers before starting work. The advice given is to provide more focus on the most common or dominant product defects, in order to reduce losses and increase customer satisfaction in the future.
Penerapan Metode Seven Tools pada Pengendalian Kualitas Produk Cacat di PT. XYZ
Authors: Ansori Faris Akbar , Gusniar Iwan Nugraha
Published: April 2023

Perkembangan industri yang terjadi saat ini membuat perusahaan berlomba mempertahankan dan meningkatkan kualitas produknya. Penelitian ini ditujukan untuk mengidentifikasi jenis cacat, serta mengetahui penyebab terjadinya cacat dan memberikan usulan alternatif perbaikan. Penelitian ini menggunakan bantuan metode seven tools untuk menganalisis data. Adapun data yang digunakan untuk kebutuhan penelitian yaitu laporan produksi yang memuat informasi jumlah produk dan jumlah produk cacat pada periode Januari-Oktober 2022. Hasil yang didapatkan pada penelitian ini diketahui terdapat dua jenis cacat pada part JK6000 yaitu No Cutting, dan Over Cutting. Dari hasil diagram Pareto kemudian dapat diketahui cacat over cutting menjadi jenis cacat yang paling dominan dengan 63%. Beberapa faktor yang menjadi penyebab cacat berdasarkan diagram fishbone yaitu pada faktor manusia, mesin, dan metode. Adapun usulan yang diberikan dalam penelitian ini yaitu pengadaan pelatihan untuk karyawan, pengadaan tabung udara tambahan, hingga perumusan SOP yang mengatur proses pembuatan dan standar pada produksi part JK6000 secara terperinci.
Analisis Postur Tubuh Menggunakan Metode RULA, REBA Pada Pekerja di Divisi Packaging
Authors: Sya'bana Ade Rizky , Herwanto Dene
Published: April 2023

In the process of moving cement products from the packaging department to several trucks, human power is required. Workers who transfer finished cement products from belt conveyors to trucks take a long time to lift heavy workpieces which can cause disturbances in the limbs as a result of repetitive work. Therefore, an analysis is needed that aims to determine the level of safety of work postures as a basis for improving the work posture of workers. In analyzing body posture, the Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA) methods are used. The results of the study found that the analysis of worker posture using the RULA method was 7, this indicates that the job requires investigation and changes to SOP. Based on the REBA score of 6, it indicates that the work has a moderate risk level, with an action level of 2 and further action for evaluation of the work system needs to be carried out. Changes to the work system are made in order to minimize the risk of musculoskeletal complaints in workers so that it will affect the level of worker productivity.
Pengembangan Model Aspirator Penangkap Nyamuk Elektrik
Authors: Widyantoro Wahyu , Syadiyah Sarifah , Sumiyarsih Ari
Published: April 2023

Kegiatan penangkapan nyamuk dalam survei dan pembelajaran praktik di laboratorium selalu menggunakan aspirator. Aspirator adalah alat yang digunakan untuk menangkap serangga yang sangat kecil, lembut, gesit, dan aktif yang sulit dikumpulkan dengan pinset atau sikat, seperti nyamuk. Aspirator yang banyak digunakan untuk menangkap nyamuk saat survei maupun di laboratorium sederhana yaitu aspirator mouth suction. Penggunaan oral suction aspirator rentan terhadap penyebaran kasus COVID-19 karena selain dihisap melalui mulut, juga digunakan secara bergantian. Sehingga perlu dikembangkan berbagai model aspirator otomatis tanpa penyedot mulut. Metode penelitian yang digunakan adalah Research and Development (RD). Berdasarkan uji daya hisap, model kipas memiliki kecepatan hisap maksimum 5cm sedangkan model katup 1 cm. Model aspirator kipas menerima 3,82 atau sangat baik dibandingkan dengan model katup 3,4 atau baik.
Rancang Bangun Robot Penyemprot Disinfektan pada Gedung
Authors: Djafar Alfian , Gunawan Gad , Adam Oddy , Al Wafi Rifqi , Ali Usman
Published: April 2023

Penelitian ini bertujuan untuk merancang dan membuat robot penyemprot disinfektan. Penelitian ini merujuk pada metode research and development. Robot yang dibuat adalah kombinasi antara robot beroda dan robot lengan. Jenis Roda pada robot yang digunakan pada robot ini adalah roda mecanum. Arah Gerak robot berupa gerak maju, mundur, geser kanan, geser kiri, belok kanan, dan belok kiri.  Untuk robot lengan, digunakan lengan 3 derajat kebebasan. Robot lengan berfungsi untuk mengarahkan nozzle sprinkler menyemprotkan disinfektan.  Berdasarkan Proses perancangan dan pembuatan, robot penyemprot bisa beroperasi dengan baik, baik gerak roda mecanum, lengan robot, pengoperasian pompa, dan indikator pengisian air ke dalam tangki.
Evaluasi Penerapan Fit to Work Guna Peningkatan Kesehatan dan Keselamatan Kerja di Terminal Kalimas Surabaya
Authors: Hendrasarie Novirina , Praditya Lham Lacta
Published: April 2023

Every year around 24 million people die from work accidents, which include 360,000 fatal accidents and it is predicted that 1.95 million of them are caused by fatal diseases that arise in the work environment. PT Pelindo III is a company that serves as a public port operator (terminal operator). In 2011 according to the Ministerial decree of Transportation Number: KP 88 of 2011 concerning the granting of a business license to PT Pelabuhan Indonesia III (Persero) as a Port Business Entity covering the provision and service. Therefore, the function of PT Pelabuhan Indonesia III also increases. Evaluation is one of the stages in the process of carrying out a fit to work health examination which aims to provide recommendations for developing the process. The purpose of this examination is to study the implementation of the program on fit to work which discusses efforts in implementing occupational health and safety at the Kalimas Terminal in Surabaya. In this study using quantitative descriptive research as a research design with interview and survey methods. The informants of this study were 11 people from Kalimas Terminal employees. The results obtained in this study are the implementation of fit to work program at Kalimas Surabaya Terminal has been carried out optimally and effectively
Studi Kualitas Air Krueng Brayeun di Kabupaten Aceh Besar sebagai Air Baku Air Minum
Authors: Nur Ansiha , Darnas Yeggi , Fauzi Mhd.
Published: April 2023

This study aims to identify the water quality of the Krueng Brayeun River as one of the potential surface waters to meet the needs for the development of a Drinking Water Supply System (SPAM) in Banda Aceh City and Aceh Besar District. Water samples were taken at five locations around the planned intake, namely two points before the planned intake and three points after the planned intake. Laboratory tests were carried out on physical, chemical, and biological parameters. Based on the test results, it is possible to use the proposed intake location as a source of raw water for PP RI No. 22 of 2021 class I. There is no possibility of pollution at the site of the proposed intake, and water-related activities that are carried out close to bends do not have an impact on the river of quality Kr. Brayeun. Recommendations for securing raw water sources are needed so that the utilization of Krueng Brayeun River water does not interfere with the PDAM's processing process.
Characteristics of Low Back Pain in Medical Students of Muhammadiyah Jakarta University Class of 2019 After Online Class for One Semester
Authors: Rizkiandini Sulfa , Hamzah Zainy
Published: April 2023

Introduction: Lower back pain (LBP) is a complaint that is often felt by everyone in everyday life. In 2010 the Global Burden of Disease Study estimated low back pain to be one of the top ten diseases and injuries with the highest number in the world. According to research conducted by Altinel in 2008, about 62% of adults experience LBP as a result of sitting too long in the wrong position. The wrong sitting attitude of someone at work will affect the unfavorable results of their work.

Method: This research is a descriptive analytic survey research, which aims to know about low back pain of  the students of the Medical Education Study Program Class of 2019. approach used in this study is "cross sectional study", with a total sample of 113 respondents.

Result: From the 113 respondents the results of research conducted through a questionnaire, there were 59 respondents (52.2%) who were researched having a low back pain. In the category based on the length of study, 59 respondents (52.2%) experienced LBP complaints and the results of statistical analysis (P = 0.030) where there was a significant relationship between the length of study and LBP complaints. In the category of the relationship between sitting position when doing online, there were 59 respondents (52.2%) and the results of statistical analysis (P = 0.526), there was no significant relationship in the position category when doing online with LBP complaints and in the sitting position category when learning was obtained 59 respondents (52.2%) and the results of statistical analysis (P = 0.183), namely that there was no significant relationship in the category of learning position with LBP complaints.

Conclusion: There is no significant relationship between learning position and length of study with complaints of low back pain in students of 2019 Medicine Program of Muhammadiyah Jakarta University. Because, the improper sitting position and duration of study are not solely factor that lead to low back pain.
Characteristics of Neck Pain in Medical Students of Muhammadiyah Jakarta University Class of 2019 After Online Class for One Semester
Authors: Kasmi Raras Sakti Mulya , Hamzah Zaini
Published: April 2023

Introduction: Neck pain is a very common complaint in everyday life. Neck pain is a multifactorial disease with many associated risk factors. In population studies, 20-60% of women and 15-40% of men have experienced neck pain. Neck pain is a health problem that can develop and interfere with a person daily activity.

Method: This research is a descriptive analytic survey research, which aims to know about neck pain of the students of the Medical Education Study Program Class of 2019. approach used in this study is "cross sectional study", with a total sample of 113 respondents.

Result and Discussion: From the 113 respondents the results of research conducted through a questionnaire, there were 76 respondents (67,3%) who experienced neck pain. In the category based on the length of sitting, 76 respondents (67,3%) experienced complaints of neck pain and the results of statistical analysis (P = 0.455) where there was a significant relationship between the length of sitting and complaints of neck pain. In the category of the relationship between the most frequent learning position, there were 76 respondents (67,3%) and the results of statistical analysis (P = 0.586), there was no significant relationship in the most frequent learning position with neck pain complaints and in the learning location category 76 respondents (67,3%) and the results of statistical analysis (P = 0.315), namely that there was no significant relationship in the category of study location with neck pain complaints.

Conclusion: There is no significant relationship between learning position and length of sitting with complaints of neck pain in students of 2019 Medicine Program of Muhammadiyah Jakarta University. Because, the sitting position and length of sitting are not the only factors that cause neck pain complaints
Kedudukan Komisi Perlindungan Anak Indonesia Sebagai Lembaga Negara Independen Dalam Perlindungan Hak-Hak Anak di Indonesia: Analisa Perbandingan Lembaga Negara Anak di Tiongkok dan Britania Raya
Authors: Sidauruk Averin Dian Boruna
Published: April 2023

Belum terpenuhinya jaminan atas hak-hak anak di Indonesia tercermin dari semakin meningkatnya angka pelanggaran hak terhadap anak. Pemenuhan dan perlindungan hak anak sudah menjadi tanggung jawab bersama antara keluarga hingga pemerintah.. Melalui Konvensi Hak-Hak Anak, Negara berkewajiban untuk melindungi, menghormati serta bertanggung jawab atas anak untuk hidup, tumbuh dan berkembang serta berpartisipasi secara optimal sesuai dengan harkat dan martabat kemanusiaan. Pasal 28B ayat (2) UUD NRI Thn 1945 telah menyebutkan kewajiban negara atas perlindungan hak-hak anak dan dituangkan dalam UU Nomor 35 Tahun 2014 Tentang Perubahan Atas UU Nomor 23 Tahun 2002 Tentang Perlindungan Anak. Amandemen UUD NRI Thn 1945 melahirkan lembaga-lembaga negara yang bersifat independen, seperti  KPAI yang dibentuk pasca adanya pengakuan dan jaminan hak-hak anak. Kedudukannya diatur dalam UU Perlindungan Anak. Selain Indonesia, Tiongkok dan Britania Raya  juga memiliki Komisi Anak dan perlindungan anak diatur dalam Konstitusi negara masing-masing dan Undang-Undang di bawahnya. Artikel ini akan memuat studi perbandingan kedudukan lembaga negara anak yang ada di Indonesia, Britania Raya dan Tiongkok. Hasilnya, KPAI dengan tujuh tugas pokok ternyata belum mampu mengoptimalisasikan penyelenggaraan perlindungan anak karena ketidakmampuan untuk menjangkau seluruh wilayah Indonesia. Diperlukan pengembangan kebijakan KPAI dalam melaksanakan tugas dan kewenangannya.
Studying the estimation levels of inflammatory markers and NF-κB in MDR and DS-TB patients
Authors: Yassmeen A. Hussain  , Khairallah A. S. Mohammed  , Naael H. Ali
Published: April 2023

Tuberculosis (TB) is one of the most infectious and deadly diseases, especially after the emergence of drug-resistant bacteria. Therefore, in this study, we developed a method to evaluate the ability of using CXCL10, CXCL9, MMP9, suPAR and the expression gene (NF-κB) and their rolesin the diagnosis and treatment of the disease in patients. Also, we used ELISA and qPCR techniques to compare the serum levels of CXCL10, CXCL9, MMP9, suPAR and NF-κB gene in drug resistant and drug sensitive TB. The serum levels of CXCL10, CXCL9, MMP9, suPAR and the expression of NF-κB gene was compared among drug resistant and drug sensitive TB using ELISA and qPCR Techniques, respectively. Our results showed an increasing in the serum levels of CXCL10, CXCL9 and suPAR, in the drug resistant of TB patients but not in the drug sensitive group, however, all of them did not reach the significant level, it was found that expression of NF-κB in drug sensitive group was higher (3.22-fold) than that in the drug resistant-TB patients (2.70-fold).
Effect of Socio-Demographic Characteristics on Level of Zinc in Serum of Adults in Najaf
Authors: Ali Hassouni Sabreen , Taresh Ahmed Jabbar , Jasim Mohammed Salam
Published: April 2023

Background: Zinc is an essential trace element in maintaining human health. Zinc deficiency has many adverseeffects on the body's growth and validity and delays the  individuals’ daily performance of duties. The study aimed: tofind the association between serum zinc levels and different  socio-demographic factors.
Material and Methods: A crosssectional study was conducted to achieve the study's aim from November 2021 to May 2022. The size of sample comprises 140 participants. All study members were adults ages ranging from (18-65) years taken randomly from Al-NajafGovernorate. The data was collected by estimating serum zinc and using a simple questionnaire, then analyzed using astatistical program.
Results: The association between serum zinc with educational level and monthly income was a  significant p-value (0.048 and 0.027, respectively). Other sociodemographic characteristics were not significant.
Conclusion:The study concluded that educational level and monthly income could affect serum zinc level more than Other sociodemographic characteristics.
Assessment of dietary patterns in obese children and adolescents at risk of pre-diabetes in Basra/Iraq
Authors: Abbas S. Musher  , Majid A. Maatook  , Dhaigham I. Atwan
Published: April 2023

the role of nutrition in developing pre-diabetes among obese children and adolescents remains a major problem. Method: A cross-sectional study based on food frequency questionnaire data was conducted on obese children and adolescents aged 6
On Galen's medical rhetoric
Authors:   Moscow State University of Medicine and Dentistry named after A.I. Evdokimov, Prolygina Irina
Published: April 2023

In ancient Greece, medicine was closely linked to rhetoric as it needed the tools to persuade the audience and logically justify the methods of treatment. During the imperial period, mastery of rhetorical techniques became an essential characteristic of educa-tion and belonging to the intellectual elite who highly valued im-provised public speeches and debates, including those on scien-tific topics. Galen, as one of the brightest and most prolific writ-ers of the Antonine and Severan periods, occupied a key place in this culture of the so-called “Second Sophistic”. However, the study of his style still belongs to the category of desideratum. The difficulty lies mainly in the fact that his compositions are extremely diverse in terms of their volume, genre specificity, and target audience, and in each case, require careful correlation of the text with its context. The question is considered of what modern researchers understand by “Second Sophistic” and what criteria determine whether a particular author belongs to this phenomenon. One of these criteria is paideia — a classical school education in grammar, rhetoric, and philosophy, which provided many common formal features recorded in the writings of Greek and Roman authors of that period. And although Galen does not directly speak about his rhetorical education and skepti-cally comments on the methods of rhetorical persuasion, the list of his works devoted to questions of grammar and rhetoric, which is preserved in his autobiographical writings, testifies to his excellent mastery of the subject. On the other hand, even skimming of his writings points to Galen's expertise in compos-ing so-called “progymnasmata” and his mastery of literary gen-res: narration, eulogy, invective, comparison and description, refutation, etc., which allowed him to become an outstanding physician, polemicist, commentator, and inventor of scientific discourse.
STUDI KOMPARASI DAYA RESAP TANAH YANG DILENGKAPI LUBANG BIOPORI DAN DAYA RESAP TANAH YANG DITANAMI BAMBU DENGAN METODE OBSERVASIONAL ANALITIK TERHADAP PETAK OBSERVASI DI LAPANGAN
Authors: Wibisono Rahardian , Chalid Abdul , Kusdian Didin
Published: April 2023

Lubang Biopori adalah lubang yang dibuat khusus untuk mengembangkan biopori di dalam tanah. Biopori adalah lubang-lubang kecil dalam tanah yang membantu tanah bernafas (mengalirkan oksigen) dan menyediakan/meresapkan air hingga ke dalam. Lubang biopori adalah bentuk artifisial dari akar tanaman, khususnya akar bambu yang memiliki beberapa kelebihan dengan kemampuannya dalam menyerap nitrogen dan karbon serta banyaknya mikroorganisme di sekitar ujung akar bambu yang berperan aktif membentuk biopori. Dengan banyaknya biopori, kemampuan menyerap air dalam tanah menjadi lebih besar disbanding tanah asli, dari penelitian yang dilakukan di lahan berkontur dan berjenis tanah silt yang dilakukan dengan metode observasional analitik diperoleh bahwa, pada masa observasi 4 bulan, penambahan lubang biopori dan penanaman bambu sama-sama meningkatkan koefisien resapan tanah hingga 3 kalinya. Dalam masa penerapan 1 tahun, penambahan lubang biopori meningkatkan koefisien resapan tanah hingga 8 kalinya dan penanaman bambu akan meningkatkan koefisien resapan hingga 60 kalinya.
TINGKAT KEPUASAN KONTRAKTOR DAN SUPPLIER DALAM MELAKSANAKAN PEKERJAAN DI KAWASAN SUMMARECON BANDUNG
Authors: Wijaya Bonny , Rachmat Agus , Siregar Chandra Afriade
Published: April 2023

Tingkat kepuasan adalah perasaan senang atau kecewa seseorang yang muncul setelah membandingkan kinerja produk yang dipikirkan terhadap kinerja yang diharapkan. Jika kinerja berada di bawah harapan maka pelanggan tidak puas, jika kinerja memenuhi harapan maka pelanggan puas dan jika kinerja melebihi harapan maka pelanggan sangat puas. Penelitian ini mencoba memberikan jawaban tentang bagaimana tingkat kepuasan kontraktor dan supplier dalam melaksanakan pekerjaan di kawasan summarecon bandung, dan data penelitian diperoleh dengan cara menyebarkan kuesioner terhadap 75 responden kontraktor dan 75 responden suplier. Hasil penelitian memperlihatkan nilai Customer Satisfaction Index kontraktor yang dihasilkan adalah sebesar 87,65 %, yang masuk kategori sangat puas (81% - 100%) dan nilai Customer Satisfaction Index supplier yang dihasilkan adalah sebesar 90,49 %, yang masuk kategori sangat puas (81% - 100%). Dengan demikian kontraktor dan supplier sangat puas melaksanakan pekerjaan di Kawasan Summarecon Bandung. Faktor-faktor yang mempengaruhi kepuasan kontraktor dan supplier dalam melaksanakan pekerjaan di Kawasan summarecon bandung berdasarkan metode Importance Perfomance Analysis adalah faktor mengerti kebutuhan proyek, kemampuan manajemen dan attitude (sikap).
INNOVATION ADOPTION PROCESS IN CREATING CUSTOMER VALUE PT.PLN
Authors: Sukardi Hadi Ahmad , Nurriyati Ratih , Dirgantari Puspo Dewi
Published: April 2023

The consumer adoption process is a process in which consumers assimilate information, use it, and verify what has been done. The many innovations implemented in the PT. PLN company will certainly have an impact that has value in front of customers. In carrying out the process of consumer adoption of schemes or innovations imposed by PT. PLN. With the innovation carried out by PLN, namely the use of the PLN mobile application, will there be a problem between the previous habit becoming a new habit, of course PLN customers must get used to adapting to this habit. This research certainly wants knowledge between the researchers' assumptions namely product quality, product design and product benefits in the adoption process of the PLN influencing customer assessment. Correlational Research Methods where researchers change qualitative data into quantitative data by using primary data and using the slovin method as a sample data selection. The analysis technique using structural equation modeling rather obtains accurate hypothesis results and uses validity and reliability tests using variance extract and construct reliability. As well as this research confirms the model suitability test by using the Goodness of fit test and finally the researcher gets the results of the regression weight for the results of determining the hypothesis. The results obtained by the researchers in this study were that product quality had a significant and positive effect on customer ratings, while product design had no significant relationship with customer ratings and product benefits/usages also had no significant relationship at all with PLN product ratings.