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INDONESIA
MATEMATIKA
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Mathematics
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Articles 6 Documents
 1 
Search results for , issue "Vol 9, No 1 (2006): JURNAL MATEMATIKA" : 6 Documents clear
ANALISIS REGRESI SEMIPARAMETRIK PADA KASUS HILANGNYA RESPON Yahya, Irma; Budiantara, I Nyoman; Fitriasari, Kartika
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

In the specific cases of experiment, not all data (response) may be available, which is called missing response cases. It’s appear for various reasons.  For the existing problem, inference statistics cannot be applied directly.  The aim of this research is to consider about certain method to impute the missing response which is related to semiparametric regression, as a goodness of fit measurement of the used method, suppose an estimator  which is compared to the mean of complete response, then consider asymptotic distribution, consistency and efficiency of parametrics component estimator. By using Kernel approximation, the resulted of nonparametrics estimator and by least square method, the resulted parametric component .The application to minimum temperature’s data in 56 cities at USA, estimator value of  for several confidence interval tend to be similar to the mean value of complete response.  
OPTIMASI PRODUKSI DAN PENGENDALIAN BAHAN BAKU STUDI KASUS PADA PT. JOSHUA INDO EXPORT Susanto, Tedy; Sarwadi, Sarwadi
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Production optimization and inventory control on raw materials are among the main problem in company’s management. These two issues are the subjets of this article. This article is a case study on a furniture exporter company PT.Joshua Indo Export, where the data was collected. The aim of this article is to compare the policy in the production and inventory control on raw materials in the company with the one which is the result of its optimization. We use Economic Order Quantity (EOQ) model to optimize the production and inventory control on raw materials in the company. The computation and the analysis produce a policy which show that there are some saving in the cost of production and the inventory compared with the currently implemented policy.  
PERANCANGAN MODEL PENDUKUNG KEPUTUSAN UNTUK PENENTUAN LOKASI INDUSTRI BERDASARKAN PROSES HIERARKI ANALITIK Kusumaningrum, Retno
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

The Analytic Hierarchy Process (AHP), a decision-making method based upon division of problem spaces into hierarchies. This paper looks at AHP as a tool used in determination of industrial location. Solution of AHP method finished with the iteration process of through at scheme of  Pascal computer program to assist the calculation process. From result of program device which have been made to be obtained the highest total priority value (TPV) was potential distribution and promotion track
DEFORMASI INTERAKSI DUA PAKET GELOMBANG DARI PERSAMAAN IMPROVED KdV (IKdV Sutimin, Sutimin
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Here, We will study the nonlinear two waves packet interaction. The two waves packet is modeled by Improved Koreteweg de-Vries (IKdV) equation. The primary amplitudes are modulated by two-soliton of the nonlinear Schrődinger (NLS) equation. In this paper, we analyzed the interaction patterns of the two waves packet at the peak interaction. We have shown here, that during under going to the interaction region, the deformation of amplitudes profile will be occurred. The large deformation is characterized by the ratio of the amplitudes parameter and the wave numbers of each wave packets. The symmetry interaction also can be analyzed by the characterization of the parameters.
METODA BEDA HINGGA PADA PERSAMAAN KDV GELOMBANG INTERFACE Wiryanto, L.H; Djohan, Warsoma
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Propagation of interfacial wave, modeled in an equation of KdV type, is solved numerically. A finite different method is used to construct a system of linear equations from the model, and the system is solved by Gauss-Seidel method. This numerical procedure is firstly tested for solitary wave, which gives agreement to the analytical solution, and is then used to observe a simulation of wave propagation generated on the left by a generator, for some various values of parameters, depth and fluid density
PENGGUNAAN ANALISIS REGRESI LOGISTIK UNTUK MENGANALISIS PERILAKU DAN FAKTOR-FAKTOR YANG MEMPENGARUHI MINAT BACA PENGUNJUNG BADAN PERPUSTAKAAN PROPINSI JAWA TIMUR Kusrini, Dwi Endah; Puspitasari, Dwi
MATEMATIKA Vol 9, No 1 (2006): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

This research aim is to know factors and behavior influencing enthusiasm read  Library  visitor Province East Java (Baperpus) by using primary data obtained from survey as much 340 visitor. Method used in this research is Logistic Regression Analysis where the respon variable  is level enthusiasm read visitor ( 1=high, 2= low), while the prediktor variables are visitor behaviors and characteristics variable and got result that there is dependency which signifikan between three variable that is visitor education variable, visit time and visitor work. There no dependency which signifikan between three variable that is between visitor age variable, visitor work and frequency to visit  Baperpus. There no dependency which signifkan between three variable that is between visitor age variable, work and time reside in Baperpus. While based on the model which is formed by Logistic Regression Analysis that one who come when morning with frequency  visit to Baperpus less than once within a week and time reside in Baperpus less than one clock have opportunity of enthusiasm read high equal to 0,19. While one who come when daytime with frequency pay a visit to Baperpus 1-2 times within a week and time reside in Baperpus 1-2 clock have opportunity of enthusiasm read high equal to 0,61. One who come when morning with frequency visit to Baperpus less than once within a week and old reside in Baperpus 2-3 clock have opportunity of enthusiasm read high equal to 0,275 and one who come when daytime with frequency visit to Baperpus 1-2 times within a week and time reside in Baperpus 2-3 clock have opportunity of enthusiasm read high equal to 0,57.  

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