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Angga Purnama
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ANALYSIS OF THE OPTIMAL PRODUCTION AREA IN METAL CASTING PT. SUYUTI SIDO MAJU KLATEN Purnama, Angga; Lastari, SE., MM, Siwi; Darini, M.Si., Dra. Sri
Management 2010
Publisher : Management

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Abstract

This study aims to (1) know the size of the optimal production volume, (2) know the level of maximum benefit to be obtained. This study uses linear programming analysis of simplex method with samples of products and equipment manufactured by companies that are the products of companies that rate high enough sales. Place this research is done in PT. Suyuti Sido Maju Klaten District Advancement and time in October 2005 to March 2006. The object that is broad optimum production and maximum profit. Collecting data in this study using interviews, observation and documentation. Analysis of the data used is the quantitative approach. The results of this study indicate: (1). According to mathematical calculations by using the Analysis of Linear Programming Simplex Method, a combination of products produced by PT.Suyuti Sido Maju reaching optimum production namely: End Bracked 300F (X1) = 700 units, Discharge Elbow (x2) = 1450 units, ejector Casing (X3) = 6500, 225 Bearing Cover (x4) = 6875 units, Fan 23 (X5) = 675 units. (2). Area of production that can provide profit / maximum profit for PT.Suyuti Sido Maju in 2005 is Rp. 214,937,500.00, excess cost advantage / profit conventionally and according to the Simplex Method is Rp. 17,737,500.00 Keywords : Production, metal.
SINTESIS Ni-TiO2 DENGAN METODE SOL-GEL DAN UJI AKTIVITASNYA PADA DEKOMPOSISI AIR Purnama, Angga; Priatmoko, Sigit; Wahyuni, Sri
Indonesian Journal of Chemical Science Vol 2 No 3 (2013)
Publisher : Indonesian Journal of Chemical Science

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Telah dilakukan sintesis Ni-TiO2 dengan metode sol-gel dan uji aktivitasnya pada dekomposisi air. Tujuan dalam penelitian adalah mensintesis Ni-TiO2 dan mengetahui kinerja Ni-TiO2 dalam mendekomposisi air dengan gliserol. Ni-TiO2 disintesis menggunakan metode sol-gel dengan prekursor TIP sebagai media pendistribusian ion dopan. Karakterisasi terhadap material hasil sintesis meliputi: band gap, struktur dan ukuran kristal, porositas dan jumlah Ni yang terdopan berturut-turut menggunakan DR-UV, XRD, BET dan AAS. Ni-TiO2 diuji aktivitasnya menggunakan lampu UV dengan panjang gelombang 254 nm. Penambahan Ni masing-masing 1, 3, 5 10 terhadap massa TiO2 berturut-turut sebesar 3,33 eV, 2,71 eV, 2,60 eV, 2,54 eV dan 1,85 eV. Hasil karakterisasi XRD menunjukkan bahwa Ni-TiO2 mengalami perubahan dan intensitas struktur anatase pada sintesis Ni-TiO2, serta mengakibatkan ukuran kristal Ni-TiO2 menjadi semakin kecil seiring dengan banyaknya dopan Ni.
Peran Dakwah Dalam Menyadarkan Pentingnya Bersikap Prososial Bagi Masyarakat Medan Maimun Ahmad Sakban Wahyudi; Angga Purnama; Jacky Raihanta Barus; Surya Adrian Pangestu; Zidan Syahira; Zikri Ramadhani
Jurnal Ilmu Komunikasi Dan Sosial Politik Vol. 2 No. 1 (2024): Juli - September
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jiksp.v2i1.1187

Abstract

This study aims to delve into the role of dakwah in educating the community of Medan Maimun about the importance of behaving prosocially in daily life. With a focus on cultural dakwah, this research uses a qualitative approach and case studies to explore how dakwah can strengthen Islamic values and promote prosocial behavior amidst diverse social dynamics. Through descriptive field data analysis, this study reveals the close relationship between dakwah, cultural diversity, and social cohesion in the context of the Medan Maimun community.The results of this research are expected to provide deeper insights into how dakwah can be an important instrument in building an inclusive, tolerant, and harmonious community. By reinforcing understanding of positive values and Islamic ethics, dakwah not only strengthens the religious identity of the community but also expands its scope in building mental and social well-being. This research makes a significant contribution to understanding the role of dakwah in promoting prosocial attitudes and strengthening social cohesion in a heterogeneous society.
Pengaruh Game Online Terhadap Perilaku Komunikasi Mahasiswa Komunikasi Dan Penyiaran Islam Uin Sumatera Utara M.Fadhli; Surya Adrian Pangestu; Zikri Ramadhani; Angga Purnama
Jurnal Kajian Islam dan Sosial Keagamaan Vol. 1 No. 3 (2024): Januari - Maret
Publisher : CV. ITTC INDONESIA

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This study aims to investigate the influence of online games on the communication behavior of Islamic Broadcasting Communication students. Quantitative methods were used in this study by collecting data from a sample of 35 students, through questionnaires and analyzing the results with statistical techniques. An influence percentage of 27.3% was found in the relationship between the intensity of playing online games and variations in students' communication behavior.The results showed that there was a significant correlation between online gaming activities and the pattern of communication behavior of university students. Of the total variation in communication behavior, 27.3% can be attributed to the influence of online gaming. This finding shows that online games have a substantial role in shaping the way Islamic Broadcasting Communication students communicate. The relevance of these findings lies in an in-depth understanding of the impact of online gaming on communication behavior, which can provide insights for educational institutions and related parties in developing appropriate intervention strategies. While the results highlight the significance of the influence of online gaming, further research is needed to understand the mechanisms and content of in-game interactions that impact communication behavior. These conclusions can serve as a foundation for developing a more thorough and effective approach in managing the influence of online gaming on students' communication behavior.
Co-Authors Ahmad Sakban Wahyudi Dra. Sri M.Si. Darini Jacky Raihanta Barus M.Fadhli Sigit Priatmoko Siwi MM SE. Lastari Sri Wahyuni Surya Adrian Pangestu Zidan Syahira Zikri Ramadhani