Judul: Analisis Pengendalian Mutu Untuk Mencapai Standar Kualitas Produk Corn Chips Di PT Anugrah Cita Era Food
Abstrak: PT. Anugrah Cita Era Food is one of the manufacturing companies and the resulting product is a snack extrudates (corn chips). This company is trying to produce products according to costomer demands by maintaining the quality of the product. But to get the best quality in accordance with the required standards of consumer needs quality control, which aims to minimize the deviations that does not comply with the standards set by the company. The objectives of this research are (1) outline the production process of corn to produce a qualified product and safe to consume, (2) analyze quality control in the whole production process of corn chips, (3) identify potential causes that affect the quality of corn chips, and (4) proving whether quality control in the production process is controlled or uncontrolled. Type of data used in this research are primary data and secondary data. The process of the analysis conduted in this research using Statistical Quality Control (SQC) approach for controlling the defective product corn chips. Priority are selected based on the result of the analysis using pareto diagram is corn grain repture (fracture) on the receipt of raw materials with a frequency value 50.30%, high water levels on the production process with a frequency value 29.6%, and weight of product which is not accordance (overunder) with the frequency value at A packing machine 68.65%, B 63.56%, C 65.95% dan D 63.03%. All nonconformities caused by three main factors are materials factors, methods and machine.
Keyword: Bogor Agricultural University (IPB), Statistical Quality Control (SQC), quality control, quality

Judul: Analisis Pengendalian Mutu Untuk Mencapai Standar Kualitas Produk Corn Chips Di PT Anugrah Cita Era Food
Abstrak: PT. Anugrah Cita Era Food merupakan salah satu perusahaan yang bergerak di bidang manufaktur dan produk yang dihasilkan yaitu makanan ringan ekstrudat keripik jagung (corn chips). Perusahaan ini berusaha menghasilkan produk yang sesuai dengan tuntutan konsumen dengan mempertahankan kualitas mutu produk. Tetapi untuk mendapatkan kualitas terbaik yang sesuai dengan standar yang di inginkan konsumen dibutuhkan pengendalian mutu, yang bertujuan untuk meminimalisir penyimpangan-penyimpangan yang tidak sesuai dengan standar yang telah di tentukan oleh perusahaan. Tujuan penelitian ini adalah (1) Mengetahui proses produksi corn chips dalam usaha menghasilkan produk yang bermutu dan aman untuk dikonsumsi, (2) Menganalisa pengendalian mutu pada keseluruhan proses produksi corn chips, (3) Mengidentifikasi sebab-sebab potensial yang mempengaruhi mutu corn chips, dan (4) Membuktikan apakah pengendalian mutu pada proses produksi tersebut terkendali ataupun tidak terkendali. Jenis data yang dipergunakan dalam penelitian ini adalah data primer dan data sekunder. Proses analisis yang dilakukan dalam penelitian ini menggunakan pendekatan Statistical Quality Control (SQC) untuk pengendalian produk rusak corn chips. Prioritas masalah yang dipilih berdasarkan hasil analisis dengan menggunakan diagram pareto adalah butir jagung pecah (patahan) pada proses penerimaan bahan baku jagung pipil dengan nilai frekuensi 50.30%, kadar air yang tinggi pada proses produksi dengan nilai frekuensi 29.6% serta berat produk setelah dikemas yang over-under dengan nilai frekuensi pada mesin packing A 68.65%, B 63.56%, C 65.95% dan D 63.03%. Keseluruhan ketidaksesuaian yang terjadi disebabkan oleh 3 faktor utama yaitu material, metode dan mesin.
Keyword: quality, quality control, Statistical Quality Control (SQC)

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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