<em>CV Jaya Reksa Manggala (JRM) is one of clothing company. With increasing competition in this clothing company, the companies are required to keep improving the quality of clothing products. One of the important things in quality is reduction of product defects. One of the proven methods of quality improvement is the Six Sigma DMAIC method, which is a continous improvement method that aims to achieve the best quality. One of the products of CV JRM which is still have a lot of defects is 514 products. From the initial data obtained, DPMO value for process I and II for 514 products is 10,768.52 and 27,341.42 with sigma level 3.79 and 3.43. The steps undertaken in this Six Sigma DMAIC method include define, measure, analyze, implementation and control. Several proposed improvements were then made to reduce the problem of these defects and from the data at the control stage, the DPMO values of processes I and II became 2,941.76 and 1,812.69 with sigma levels of 4.25 and 4.41. From this result it can be said that with Six Sigma DMAIC method, there is improvement of quality for product 514 at CV JRM. </em>
COVID-19 is a new disease that is affecting almost all of the world. Until now there has not been a single drug (vaccine) that can be used to cure it. Many attempts were made to prevent the spread of this disease but COVID-19 patients are increasing every day, although at the same time some are recovering. This study will calculate the probability of additional patients occurring over a long period of time, referred as a steady state state condition, using the Markov chain method. Nine states have been formed to represent the daily increase ranges of COVID-19 patients number. The calculation results show that the possibility of additional patient number between 1 to 91, 92 to 182, 182 to 272, 273 to 363, 364 to 454, 455 to 545, 546 to 636, 637 to 727, or greater than 728 people a day are 0.21197, 0.05644, 0.08408, 0.16337, 0.13999, 0.14512, 0.07189, 0.07695, and 0.05014, respectively.
Industri kreatif memiliki kontribusi yang besar bagi perekonomian Indonesia, membuka lapangan kerja baru, serta memperkuat citra dan identitas bangsa. Salah satu bagian dari industri kreatif adalah pengrajin kulit. Produk yang dihasilkan oleh pengrajin cukup bervariasi, seperti dompet, sepatu, tas, dll. Material kulit yang digunakan berupa kulit asli atau kulit sintetis. Salah satu proses dalam menghasilkan produk-produk tersebut adalah embossing untuk membentuk pola hias atau merk. Embossing dapat dilakukan dengan dengan high frequency welding. High frequency welding merupakan penyatuan material dengan menggunakan energi elektromagnetik frekuensi tinggi untuk menghasilkan panas pada material polar sehingga meleleh dan menghasilkan bentuk seperti yang diinginkan setelah proses pendinginan. Laboratorium Proses Produksi Program Studi Teknik Industri memiliki mesin high frequency welding yang dapat digunakan sebagai materi praktikum serta membantu pengrajin kulit kota Bandung, khususnya pengrajin kulit Cibaduyut untuk menghasilkan emboss yang baik. Embossing kulit sintetis dan kulit asli memerlukan parameter proses yang berbeda, hal ini disebabkan sifat fisik setiap jenis kulit. Oleh karena itu diteliti parameter yang tepat untuk menghasilkan emboss kulit sintetis. Penelitian ini menggunakan kulit sintetis yang terbuat dari PVC (Polivinil Klorida). Cetakan yang digunakan merupakan cetakan sederhana berbentuk 2 lingkaran, yaitu lingkaran dalam dan lingkaran luar. Parameter yang diteliti terdiri dari 2 parameter, yaitu suhu dan waktu pengelasan. Eksperimen dilakukan dengan 3 level suhu, yaitu 140°C, 160°C, dan 170°C sedangkan waktu pengelasan dilakukan dengan 3 level yaitu 3 detik, 7 detik, dan 10 detik. Response dari eksperimen ini adalah jari-jari dalam dan jari-jari luar emboss. Hasil proses embossing dipindai dengan menggunakan 3D Scanner dan kemudian dilakukan pengukuran dengan menggunakan perangkat lunak reverse engineering. Pengaruh dari kedua faktor dan interaksinya diketahui dengan menggunakan ANOVA. Pairwise comparison dilakukan dengan menggunakan Tukey’s method. Hasil yang diperoleh adalah suhu mempengaruhi response. Berdasarkan percobaan yang dilakukan hasil embossing dengan suhu sebesar 170oC lebih baik daripada 140oC atau 160oC. Kata kunci: high frequency welding, design of experiment, kulit sintetis, pvc
Though biometric-based authentication systems have inherent advantages over conventional authentication systems, which use passwords and ID cards, these systems cannot ensure the security and privacy of biometric data stored in their databases. Recently, several watermarking-based algorithms have been efficiently used to protect biometric templates. However, these methods also require storing the watermarked biometrics for the matching purpose of the query during the authentication phase. The paper aims to develop an approach for authenticating watermarked biometrics using transfer learning without the need to store biometric data. Benchmark face and fingerprint databases are employed to conduct the experimentation. The obtained results validated the proposed approach's ability to discriminate between different users with a performance accuracy rate achieving 99.17% while protecting the user's biometrics.
One of the tools used by cameramen to help stabilize while recording is Glidecam. Glidecam works based on the use of additional weights to compensate the load from the camera. However, there are still weaknesses in the use of Glidecam, including the fatigue and aches felt by the cameraman after Glidecam's use. In addition, it may cause disruption to joint, ligament, muscle, nerve and tendon function, and spine, for continuous Glidecam use. One alternative tool to overcome this problem is the use of Arm Brace. Arm Brace in the form of a passive exoskeleton that will compensate for part of the load from Glidecam. The product design process includes creating mission statements, identifying customer needs, determining product specifications, developing concepts, selecting concepts, making prototypes and evaluating prototypes. In this study two prototypes were made and evaluation with statistical tests showed that there was a significant increase in the endurance time of using Glidecam on the use of the two prototypes compared to that without the tools. The selection of the final prototype is done with a qualitative evaluation from the user. Qualitative evaluation is carried out with six assessment criteria: ease of use and installation, product mobility, product mass, product robustness, product support and product mechanism.Keywords: Glidecam, Arm Brace, Eksoskeleton
Masalah utama yang dialami oleh penderita amputasi transfemoral di Indonesia adalah keterbatasan mobilitas, sehingga membutuhkan kaki palsu untuk berjalan dan melakukan aktivitas sehari-hari. Namun keterbatasan gerak serta mahalnya harga sendi lutut prostetik menyebabkan tidak semua kebutuhan pasien amputasi transfemoral dapat diakomodasi. Penelitian ini bertujuan untuk merancang sendi kaki palsu yang dapat memenuhi kebutuhan penderita amputasi di Indonesia. Tahapan penelitian ini meliputi pencarian kebutuhan pengguna yang belum terpenuhi, mengembangkan konsep untuk menghasilkan rencana perbaikan sendi lutut prostetik dan mengevaluasinya. Enam konsep awal sendi lutut prostetik berhasil dibangun, dan satu konsep (AD+) telah dipilih melalui penyaringan konsep dan penilaian konsep. Prototipe fisik telah dibuat menggunakan printer 3D. Sendi lutut prostetik final menggunakan tipe sendi lutut polisentrik tipe constant friction drive, memiliki bentuk sendi lutut manusia, memiliki dimensi tinggi 188,84 milimeter dan lebar 82,46 milimeter, memiliki sudut lentur maksimum 151,4O, massa 598, 62 gram , dapat menopang beban maksimum 272 kilogram (menurut model CAD), terbuat dari nilon, memiliki biaya produksi sekitar satu juta rupiah (kurang dari USD100), memiliki kecepatan tunggal dan dampak ambulasi tingkat tinggi, dan memiliki rotator dan kunci fungsi. Evaluasi dilakukan dengan simulasi dan penilaian kualitatif. Hasil penelitian menunjukkan bahwa 68,42% kebutuhan terpenuhi dengan baik dan 31,58% terpenuhi secara memadai oleh usulan desain sendi lutut prostetik ini.
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