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All Journal YUME : Journal of Management Jurnal Ilmiah Wahana Pendidikan
Rohadin Rohadin
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Religion Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Library & Information Science Social Sciences Other

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ANALISIS PERMINTAAN HANDPHONE PADA PEGAWAI (STUDI PADA PT. COLOMBUS CIREBON) Rohadin Rohadin; Ratu Noorita Achmad
YUME : Journal of Management Vol 4, No 3 (2021)
Publisher : Pascasarjana STIE Amkop Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37531/yum.v4i3.962

Abstract

Tujuan penelitian ini untuk menganalisis penentu permintaan handphone pada pegawai tetap PT. Colombus Cirebon dengan menggunakan analasis statistic deskriptif. Sampel yang digunakan dalam studi ini sejumlah 80 pegawai tetap pada PT. Colombus Cirebon. Variabel diukur dengan menggunakan skala Likert (1 = sangat tidak setuju; 5 = sangat setuju). Hasil penelitian menunjukkan bahwa permintaan handphone pegawai tetap PT. Colombus Cirebon dipengaruhi oleh harga, pendapatan, jumlah anggota keluarga, selera, dan harapan. Di sisi lain, selera dan pendapatan adalah variabel yang paling berpengaruh pada permintaan handphone. Kata Kunci: analisis permintaan, harga, pedapatan. Abstract The aim of research to analyze the determinant of demand for mobile sellular of permanent employee PT. Columbus Cirebon by using statistics descriptive analysis. The samples used in this study are 80 permanent employees of PT. Columbus Cirebon. The variable is measured by using Likert scale (1= strongly disagree; 5= strongly agree). The result showed that the demand for mobile sellular of permanent employee of PT. Columbus Cirebon are influenced by the price, income, number of family members, taste and expectation. The other side, taste and income are variables that most influence the demand for mobile sellular. Keywords: demand analysis, price, income.
Pengaruh Variasi Tekanan Pada Hydrostatic Test Terhadap Pengelasan Gas Tungsten Arc Welding (GTAW) Pipa Baja ASTM A106 Rohadin Rohadin; Kardiman Kardiman; Deri Teguh Santoso
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 1 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.088 KB) | DOI: 10.5281/zenodo.7549250

Abstract

Pipes are tools for flowing fluids. In the mining sector, energy makes a major contribution to the use of pipes. ASTM A106 steel is a low carbon steel pipe used for high temperature applications (up to 750 degrees F). This pipe is able to withstand high temperatures and high pressures, so it is widely used in the oil and gas, petrochemical, power generation, and ship building industries. The purpose of this study was to determine the effect of variations in the pressure of the Hydrostatic test on ASTM A106 steel pipe welding joints with a current of 90 A and variations in the pressure of the Hydrostatic test of 450 Psi, 1150 Psi and 2225 Psi. The results showed that there were imperfect melting defects, excessive root penetration, porosity, and root concavity. For the Hydrostatic test with pressure variations of 450 Psi, 1150 Psi and 2250 psi for 3 pipes, the results showed that there were no leaks in the three pipes. 405.33 and the lowest uji tarik is found in spesimens that have been subjected to a Hydrostatic test with a pressure of 450 Psi with a uji tarik of only 367.01 .
Co-Authors Deri Teguh Santoso Kardiman Ratu Noorita Achmad