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Journal of Mathematical and Fundamental Sciences
ISSN : 23375760     EISSN : 23385510     DOI : https://doi.org/10.5614/j.math.fund.sci.
Core Subject : Science, Education,
Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, Biology, Health, Medical, Pharmacy), Mathematics, Physics, and Statistics.
Articles 2 Documents
Search results for , issue "Vol. 14 No. 1/2 (1981)" : 2 Documents clear
Fungsi Distribusi Statistik tN dalam Suatu Penyebaran Individu yang Beraturan dalam Bentuk Hexagon M.A. Djauhari
Journal of Mathematical and Fundamental Sciences Vol. 14 No. 1/2 (1981)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Sari. Statistik pengujian keacakan suatu penyebaran individu pada bidang datar selalu didasarkan pada hipotesis awal H0 bahwa penyebaran individu merupakan suatu realisasi dari suatu proses Poisson. Selanjutnya sebagai hipotesis alternatif biasa dipergunakan;(i). H11 : penyebaran individu merupakan suatu realisasi dari suatu proses Thomas.(ii). H12 : penyebaran individu adalah teratur dalam bentuk segitiga-segitiga sama sisi.(iii). H13 : penyebaran individu adalah teratur dalam bentuk bujursangkar-bujursangkar. Abstract. In order to determine the index of randomness a spatial pattern of objects the null hypothesis Ho that our spatial pattern is a realization of a Poisson's process is needed. The alternative usually used are:(i). H11: the spatial pattern is a realization of a Thomas' process.(ii). H12: the spatial pattern is regular in the form of equilateral triangles.(iii). H13: the spatial pattern is regular in the form of squares.We propose here the fourth alternative H14 that the spatial pattern is regular in the form of hexagons. Our interest here is to study, under H14, the distribution of tN, i.e. the best test of randomness under the first three alternatives (Djauhari, 1977). 
Plateholder-Mirror Alignment of Schmidt Telescope Suganda Jutamulia; Bambang Hidayat
Journal of Mathematical and Fundamental Sciences Vol. 14 No. 1/2 (1981)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Abstract. In the plateholder mirror alignment, we produce an auxiliary point source which falls at the correcting lens. If the adjustment is correct, then the image of once reflection, I1, will coincide with the image of three relections I3, as proposed by Dewhirst and Yates. However our results indicate that, due to off-axis position of the source, there exists aberrations at I1 and I3. Sari. Sebuah sumber-cahaya-titik buatan telah dibentuk pada lensa-koreksi guna tes pelempangan kaset pelat potret Schmidt, di Observatorium Bosscha. Cara Dewhirst dan Yates diadaptasikan untuk keperluan tes. Dalam tes ini, diselidiki jalan berkas cahaya yang terpantul sekali (I1) dan 3 kali (I3) oleh cermin utama. Kalau kedudukan kaset pelat baik, maka I1 akan berimpit dengan I3. Tetapi hasil tes kita memperlihatkan bahwa, akibat kedudukan sumber cahaya di luar sumbu, terjadi aberasi pada I1 dan I3. 

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