8 research outputs found
Analisis Energi Pada Proses Pembuatan Kerupuk Udang (Studi Kasus di PD. Sri Tanjung, Kabupaten Indramayu, Jawa Barat)
No full textEnergi menjadi kebutuhan vital bagi berbagai aspek kehidupan terutama pada aspek agroindustri. Belum adanya analisis energi yang dilakukan di PD. Sri Tanjung sehingga dibutuhkan data penggunaan energi pembuatan kerupuk udang. Tujuan penelitian ini adalah menganalisis penggunaan energi, mensubsitusi energi langsung dalam konservasi energi, dan menentukan strategi agar meningkatkan efisiensi. Perhitungan penggunaan energi dilakukan pada setiap kegiatan proses pembuatan kerupuk udang, yakni meliputi energi manusia, energi langsung, dan energi tak langsung. Hasil penelitian menunjukan bahwa penggunaan energi dalam proses pembuatan kerupuk udang di PD.Sri Tanjung sebesar 7312,148 MJ/ton kerupuk udang. Penggunan total energi manusia sebesar 151,154 MJ/ton kerupuk udang. Penggunaan total energi langsung sebesar 1992,062 MJ/ton kerupuk udang. Penggunaan total energi tak langsung sebesar 5168,932 MJ/ton kerupuk udang. Besarnya penggunaan energi ditentukan oleh tingkat penggunaan sarana produksi dan jumlah produksi yang dihasilkan, semakin tinggi masukan energi dalam proses produksi dan rendahnya hasil produksi yang diperoleh maka akan semakin efektif dan efisien energi yang digunakan.Kata Kunci: Analisis energi; kerupuk udang; penghematan energ
DUT-MMSR at MediaEval 2017: Predicting Media Interestingness Task
No full textThis paper describes our approach for the submission to the Media-eval 2017 Predicting Media Interestingness Task, which was particularlydeveloped for the Image subtask. An approach using a late fusion strategy is employed, combining classifiers from different features by stacking them using logistic regression (LR). As the task ground truth was based on pairwise evaluation of shots or keyframe images within the same movie, next to using precomputed features as-is, we also include a more contextual feature, considering aver-aged feature values over each movie. Furthermore, we also consider evaluation outcomes for the heuristic algorithm that yielded the highest MAPscore on the 2016 Image subtask. Considering results obtained for the development and test sets, our late fusion method shows consistent performance on the Image subtask, but not on the Video subtask. Furthermore, clear differences can be observed between MAP@10 and MAP scores.Multimedia Computin
Studi Siklus Waktu Proses Muat Angkut Tebu Secara Mekanis di PG. Jatitujuh, Majalengka, Jawa Barat
No full textProses muat-angkut tebu secara mekanis meliputi pemuatan tebu menggunakan grab loader dan pengangkutan tebu menggunakan truk atau trailer yang digandengkan dengan traktor roda empat. Untuk meningkatkan produktivitas kerja pengangkutan tebu, perlu dikaji metode dan cara kerjanya melalui studi terhadap waktu. Penelitian ini bertujuan melakukan analisis siklus waktu proses pengangkutan tebu secara mekanis. Pengumpulan data dilakukan dengan beberapa cara yaitu merekam proses muat-angkut menggunakan kamera digital, dan pengukuran langsung. Perhitungan cycle time dilakukan dengan menghitung waktu setiap tahap mulai dari waktu muat, waktu perjalanan dari lahan ke pabrik, waktu bongkar dan waktu perjalanan dari pabrik ke lahan. Jarak lokasi ke pabrik dibagi menjadi tiga yaitu jarak A (0-5 km), jarak B (5-10 km) dan jarak C (10-15 km). Kendaraan angkut (transporter) yang diamati berjumlah 5 unit dengan jenis yang berbeda-beda untuk setiap jarak. Hasil penelitian menunjukkan rata-rata siklus waktu pengangkutan tebu pada jarak A sebesar 4202,95 detik dengan waktu normal sebesar 1859,40 detik, pada jarak B sebesar 4995,10 detik dengan waktu normal sebesar 3832,92 detik dan pada jarak C sebesar 8332,27 detik dengan waktu normal sebesar 7402,32 detik. Kata kunci : siklus waktu, pengangkutan tebu, grab loader, trailer</jats:p
Comparative Study of Macro Program Machining and CAM 2.5D Machining for Press Dies Manufacturing
No full textThe manufacturing industry extensively utilizes machining and casting processes for die fabrication. Due to the inherent dimensional inaccuracies and surface roughness of casting, machining is often required to achieve desired accuracy and finish. Traditional computerized numerical control machining relies on individual programming using macro programming or computer-aided manufacturing software for operations such as facing, which can be inefficient and prone to error. This study aims to evaluate and compare the efficiency and accuracy of macro programming and CAM 2.5D in CNC milling specifically for press die manufacturing. Macro programming is used for automating complex and repetitive machining by incorporating variables, expressions, and logic directly to machine whereas CAM 2.5D refers to programming using software in G-code format with capability to work not only two-dimensional planes but also limited vertical movement. Experimental results indicate that CAM 2.5D offers a time-saving advantage by about 2 hours while macro programming allows for greater accuracy in machining. Industries are encouraged to utilize both macro programming and CAM 2.5D to achieve a balance of speed, accuracy, and flexibility, optimizing their CNC machining processes for both large-scale and precision-focused operations
PENINGKATAN PENGETAHUAN MENGENAI SISTEM PENGGERAK RODA BELAKANG UNTUK KENDARAAN SEPEDA MOTOR LISTRIK
No full textKegiatan Pengabdian kepada Masyarakat (PkM) dilakukan di PT WIMA terkait peningkatan pengetahuan mengenai implementasi sistem penggerak roda belakang menggunakan sistem Continously Variable Transmission (CVT) pada kendaraan sepeda motor listrik. Kegiatan PkM yang telah dilaksanakan berdasarkan target percepatan transisi kendaraan berbahan bakar bensin ke kendaraan listrik. Hasil dari kegiatan PkM berupa demonstrasi dan implementasi desain dan prototype kepada mitra PkM. Berdasarkan hasil penyebaran kuesioner kepuasan mitra dengan dua orang responden dapat disimpulkan bahwa seluruh responden menjawab cukup puas dengan pelaksanaan kegiatan PkM. Selain itu berdasarkan hasil jawaban responden terhadap kuesioner keberdayaan mitra terdapat peningkatan keberdayaan dari aspek pengetahuan.
Community Service Activities (PkM) were carried out at PT WIMA related to increasing knowledge regarding the implementation of a rear-wheel drive system using a Continuously Variable Transmission (CVT) system on electric motorbikes. The PkM activities that have been implemented are based on the target of accelerating the transition from petrol vehicles to electric vehicles. The results of PkM activities are in the form of demonstrations and implementation of designs and prototypes for PkM partners. Based on the results of distributing partner satisfaction questionnaires with two respondents, it can be concluded that all respondents answered that they were quite satisfied with the implementation of PkM activities. Apart from that, based on the results of respondents' answers to the partner empowerment questionnaire, there was an increase in empowerment from the knowledge aspect
Polylactic Acid Implant for Cranioplasty with 3-dimensional Printing Customization: A Case Report
No full textBACKGROUND: Cranioplasty is aimed to restore the structure and function of the lost portion of the skull defect. Many materials can be used for cranioplasty, such as the bones of the patient (autograft), the bones of other patients (allograft), bones of animals (xenograft), or synthetic materials such as acrylic or titanium mesh. These materials are quite expensive and sometimes require complex processes. Manual shaping of material for cranioplasty is also quite time-consuming and prone to cause esthetic dissatisfaction. The author will discuss the case of using polylactic acid (PLA) implant with 3-dimensional (3D) printing customization as a cheap and accurate cosmetic solution for cranioplasty procedures.
CASE REPORT: We report 2 cases of skull defect underwent cranioplasty. The first case, female, 20-year-old, had a history of severe traumatic brain injury (TBI) and epidural hematoma. She underwent decompression craniotomy on the left frontotemporoparietal region of her skull. The second case, male, 46-year-old, had a history of spontaneous intracerebral hemorrhage due to arteriovenous malformation (AVM). He underwent decompression craniotomy on the right frontotemporoparietal region of her skull. Both the data of computerized tomography (CT) scan were reconstructed to get 3D model of skull defect. Prosthesis was made by 3D printer accordingly using PLA as material. There was no complication reported postoperatively and cosmetic satisfaction was obtained on both cases.
CONCLUSION: The use of PLA implant with 3D printing customization was proved to be cost-effective and good cosmetic satisfaction with no complication reported following cranioplasty procedure
