Judul: Pengendalian Kualitas High Carbon dan Micro Alloy Slab Steel Plant PT ABC
Abstrak: Slab Steel Plant (SSP) is one of the production unit in PT. ABC. The quality control in SSP factory was done in two group of produced slab steel that was high carbon and micro alloy. The quality of slab steel can be influenced by the chemical composition inside it. The chemical composition testing process is the process control by accomplishing the standard value that has been determined before. The process slot in producing high carbon and micro alloy slab steel in SSP factory I consist of two unit of CCM (Continuous Casting Machine) which distinguished by the width of slab steel with determined format. Based on the result of median vector test in machine difference, it is known that on both of CCM unit (machine) there is no difference in slab steel production process. T2-Hotelling control chart shows that there are still some monitoring that are beyond the pale. The MCpm index obtained was 0.089 and 0.131 each for internal grade high carbon and micro alloy. These indexes shows that high carbon and micro alloy slab steel production process have low process capability cause it produce less than 1 MCpm index value.
Keyword: Bogor Agricultural University (IPB), MCpm., doubled variable process capability index, T2-Hotelling control chart

Judul: Pengendalian Proses Baja Karbon Tinggi di Pabrik Billet Baja PT Krakatau Steel (Persero) Tbk, Cilegon
Abstrak: Process control is used to guarantee a product/service that was produced to meet certain specification and has high uniformity over time. Process control generally uses quality control charts that is used to detect the causes of high variability a product. Quality control charts that was used in this study was Generalized Variance control chart and Individual Hotelling T2 control chart. The Individual Hotelling T2 control chart was done after the Generalized Variance control chart was under control. Based on the results of the Generalized Variance (GV) control chart and the Hotelling T2 control chart using a confidence level of 99.73%, the process of high carbon steel was under control after observations that were outside the control limits were removed, which means variance and average of the process was under control. However, the identification of the previously uncontrolled observations was done first. One way to determine the variables (elements) that affected the out of control observation was to calculate the decomposition value of out of control observations. Based on these values, it indicated that the variables mainly causes out of control observation were Cu, Ni, S, and P.
Keyword: Generalized Variance control chart, Individual Hotelling T2 control chart, out of control observation

Judul: Etno-ornitologi Burung Kancilan Flores (Pachycephala nudigula nudigula Hartert 1897) pada Masyarakat Lio di Taman Nasional Kelimutu
Abstrak: Bare-throathed whistler is one of several wild birds in Kelimutu National Park (TNKL) that is believed to have correlation with Lio Community‟s belief. The estimation of Bare-throated whistler‟s population in Kelimutu National Park was about 186.41-1668.07 individual by the density about 0.0389-0.3481 ind/ha with the sex ratio 6.2:1 that spreaded on area with height of 1100 – 1600 masl. The characteristic of Bare-throated whistler‟s habitat is a natural forest with various canopy level, high plant species diversity and high density. The habitat characteristics related to the availability of food in the form of insects, cover, safety and a nesting site. Generally the most of Lio community knew the existence of Bare-throated whistler directly or from their parents‟ stories. The perceptions of Lio Community to the Bare-throated whistler‟s existence is generally support the conservation efforts. The perceptions construct the Lio Community‟s atitude that tend to be conservative to the existence of Bare-throated whistler. The attitude shown by their behavior that not cathing the Bare-throated whistler from the TNKL‟s area or the outside. The attitude have an important role to the existence of Bare-throated whistler in Kelimutu National Park‟s area.
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