Judul: Analisis Sistem Antrian Pada Industri Pengolahan Roti (Studi Kasus Di PT Nippon Indosari Corpindo)
Abstrak: Productivity is one of important thing to be concerned in industrial development efforts because the productivity value becomes an indicator of company efficiency and effectiveness. Achievement of high productivity is determined from the continuity of production process or production balancing. Production balancing is determined by service velocity and arrival velocity or the existence of bottleneck due to queuing. The queue occured when the arrival of raw materials exceed than production capacity and at the time when arrival time faster than service time so that the following materials which arrived could not be serviced directly because of busyness services. In the bread processing industry PT Nippon Indosari Corpindo, production processed with semi-automatic system which combined between machine and operator so that there are a variety of service rate with probabilistic patterns. Therefore, production queuing of company needs to be analyzed to anticipate any additional costs due to material damage during production process. In the bread processing industry, it will cause over-fermentation and then will reduce the quality of product because of waiting time materials. If that condition continues, the material loss in company will be larger. Therefore, need a simulation to be developed with queuing theory. The research purposes was identifying queuing models that occurs in a production line, analyzing queuing system performance, identifying causing factors of queue and developing queuing models scenario. This research is limited to queuing system analysis and development models in sweet bread line PT Nippon Indosari Corpindo from raw material which arrived into first production station until the end of production station. This sweet bread line had 16 service stations that consisted of machine or room service and operator service. Sixteen stations was mixing sponge stations, first fermentation, mixing dough, floor time, dividing, rounding, intermediate proofing, filling, make up, panning, second fermentation, baking, depanning, cooling, packaging and crating. There was 6 stations using operators that was filling station (1 operator), make-up (4 operators), panning (2 operators at ripped bread items and 1 operator at filled bread items), baking (1 operator), depanning (1 operator) and crating (2 operators).
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Judul: Audit proses produksi roti manis isi di PT Nippon Indosari Corpindo Tbk. Cikarang, Bekasi
Abstrak: Nippon Indosari Corpindo Co. Ltd. is a company engaged in the manufacturing industry produced bread "Sari Roti". To maintain the quality of bakery products in order to remain in accordance with quality standards set by the company, needed a quality system process of production that work well. The purpose of this study are to identify the factors that caused deviations of quality sweet bread products by conducting an audit approach and advise the company in product quality improvement through the improvement of production processes. Data collection and processing acquired by using the seven tools quality control, including: check sheet, stratification, Pareto diagram, and cause and effect diagram. As results of observations, there are seven types of defects found in the sweet bread production process, such as dents (37%), bubbles (7%), burning (2%), leaking (5%), shape (13%), attached (15%), and others (20%). Quality improvement priorities is carried out on the kind of dent quality deviations on sweet bread. Dents on the sweet bread caused by the equipment used still manually and limited, side of conveyor pressing the edges of bread; operators who are less skilled, uncareful, and fatigue when putting bread into the conveyor; depanning methods are not effective and work instructions/SOP is less to explain about the procedure of putting the bread properly. Trial improvements designed to improve the system of production processes currently running. As a result, the trial was able to reduce the amount of dents on the sweet bread of 69.79%.
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Judul: Embriogenesis ikan buta (Astyanax fasciatus)
Abstrak: Ikan buta Astyanax fasciatus adalah spesies ikan unik dari famili Characidae yang menempati perairan dalam gua di Wilayah La Cueva Chica-San Luis Potasi-Mexico. Ikan ini memiliki mata yang tereduksi (Blind Cavefish) dan warna kulit merah muda, pucat serta mengkilap.
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