Judul: Studi Gerak, Pemeliharaan Tempat Kerja dan Waktu Baku Bagian Pengupasan Ubi di PT Galih Estetika Indonesia
Abstrak: Penelitian dilakukan di PT Galih Estetika Indonesia yang merupakan perusahaan yang menghasilkan pasta ubi. Tujuan penelitian menganalisis studi gerak, pemeliharaan tempat kerja, dan mengukur waktu baku pada bagian pengupasan ubi membandingkan mengupas ubi menggunakan pisau kecil dengan mengupas ubi menggunakan pisau besar. Gerakan pengupasan ubi sudah baik, karena gerakan yang dilakukan merupakan gerakan dasar yang berhubungan dengan pekerjaan. Analisis pemeliharaan tempat kerja menggunakan penerapan Seiri, Seiton, Seiso, Seiketsu, Shitsuke (5S) bagian pengupasan ubi perlu ditingkatkan, karena pekerja belum memiliki rasa disiplin diri dan lingkungan. Hasil dari pengukuran waktu pengupasan ubi menggunakan pisau kecil selama 49.11 detik dan pisau besar selama 20.14 detik. Ketika pekerja mengupas ubi menggunakan pisau besar hasil yang didapat 2 219.4 kg sedangkan menggunakan pisau kecil hasil yang didapatkan 2 421.8 kg sehingga target ubi yang dikupas semula 2 000 kg menjadi 3 000 kg kurang 19.27% untuk mencapainya.
Keyword: pemeliharaan tempat kerja, studi gerak, waktu baku

Judul: Perancangan Tata Kerja Bagian Kupas-Periksa pada Proses Pengolahan Ubi Jalar di PT Galih Estetika Indonesia.
Abstrak: The objective of the research were to examine the workload for several age levels of workers, to observe the tools and equipments utilization effect to fatigue, and also to recommend an optimal work system that related with tools/equipment utilization and work scheduling through ergonomic approach of sweet potato processing. The subjects employed in this research were 12 employees that divided based on age level into young, middle, and old age. The results of this research showed that the highest energy consumption when doing a work is on subject in old age group. Therefore, the morning shift is preferable to be taken by the old age workers with assistance from young and middle age workers, whereas afternoon and night shift were preferable for middle and young age. The highest productivity was coming from the middle age group that was constant in every work shift. The questionnaire results indicated that the workload of subjects on medium workload category, but in case of working equipment, subjects were situated in very uncomfortable category for using working tools and equipment, so the repairments based on anthropometric dimensions are required in order to fit the workers to the task.
Keyword: sweet potato processing, workload, work system design, work tools/equipment

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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