Judul: Implementasi Statistical Process Control Pada Operasi Pengisian Produk Pangan Bubuk
Abstrak: Variabilitas berat produk pada operasi pengisian yang terjadi pada sebuah perusahaan manufaktur pangan bubuk merupakan masalah kualitas yang signifikan. Variabilitas berat produk menyebabkan pembeli mendapatkan jumlah produk yang bervariasi dalam tiap kemasan. Penelitian ini bertujuan untuk mengimplementasikan SPC (Statistical Process Control) untuk mereduksi variabilitas tersebut. Tiga sumber variabilitas yang dianalisis adalah metode penimbangan, kinerja operator, dan berat kemasan. Analisis terhadap metode penimbangan yang dilakukan dengan uji gage Repeatability and Reproducibility (R&R) menunjukkan bahwa metode penimbangan pada pengukuran sachet dan box berdampak terhadap 3.55 dan 1.30 % variasi produk akhir. Analisis terhadap kinerja operator yang dilakukan dengan uji ketepatan pengaturan berat menunjukkan bahwa underadjustment (terlewatnya pengaturan tombol pengisi mesin pengisian saat beratnya diluar batas kontrol) merupakan sumber variabilitas signifikan. Analisis terhadap berat kemasan yang dilakukan dengan uji konsistensi menggunakan bagan kendali X̅ -R menunjukkan bahwa konsistensi berat kemasan pemasok B berada diluar batas kontrol. Pengetatan pemantauan berat produk oleh operator dengan interval 15 menit mampu mereduksi standar deviasi dari 0.0395 menjadi 0.0298 dan mengubah ratarata berat produk dari 2.028 menjadi 2.001 g, mendekati target berat produk 2.000 g. Studi kelayakan solusi dilakukan dengan memetakan aktivitas operator pada bagan Gantt dan menunjukkan bahwa pengetatan pemantauan berat produk oleh operator dengan interval 15 menit layak diterapkan.
Keyword: variabilitas, Statistical Process Control, pengisian, gage R&R, control chart

Judul: Aplikasi Statistical Process Control dalam Pengendalian Ketidaksesuaian Kemasan Milkuat Pouch di PT Danone Dairy Indonesia
Abstrak: Quality is considered as the main factor of food processing industry. One tool that important to control food quality is Statistical Process Control (SPC). Unconformity (product reject) is one of many quality problem in all manufacturing product such as Milkuat Pouch in PT Danone Dairy Indonesia. This cooperation has a minimum limit of unconformity specification standard, i.e. it must be less than 1,7% of the actual output production. This parameter show us how much losses earned, compares to raw material and packaging material aspect of the filling process. This product consist of two main material, water and fresh milk. The purpose of this research is to apply SPC in monitoring the unconformity quality of the product in filling machine area. The method concept which used to solve this problem are observation and identification of problems, brainstorming, control chart, fishbone diagram, pareto diagram and action plan. The conclusion of problem identification is the number of unconformity in machine 15 and 16 was out of standard spesification. Measurement results of samples 125 batches (15 days production in first shift) using np-chart and p-chart of control charts, indicating that the process is out of control, and the percentage shows the unconformity product is more than 1,7%, it means there still occuring many various errors that impact to defect in the final product. The causes of unconformity problem were classifieed by fishbone and pareto diagram analysis. This analysis is done by observation of each batch production for 15 days in first shift on each machine, machine tube AC, AD, AE, and AF. The action plan has been constructed to eliminate 80% of root cause so that it would reduce the unconformity of product.
Keyword: control chart, unconformity, Milkuat Pouch, statistical process control (SPC)

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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