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All Journal Hydrogen: Jurnal Kependidikan Kimia Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Jurnal Ekonomi, Teknologi dan Bisnis
Yunita, Lia
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Astronomy Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Perencanaan Sumur Pengembangan Reservoir Gas “RRD” Berdasarkan Metode Decline Curve Rahmahdani, Ria; Yunita, Lia; Listriyanto, Listriyanto
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 7 No. 1 (2023): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v7i1.1584

Abstract

Reservoir “RRD” mulai dikembangankan pada tahun 2011 di lepas pantai dan sumur ekplorasi yang dilakukan pemboran diberi nama sumur “R-1”. Pada tahun 2013 dilakukannya pengeboran delineasi yairu sumur “R-2” dengan tujuan sumur pengembangan yang direncanakan produksi selama dua puluh lima tahun. Pengerjaan mulai pada tahun 2019 dengan disetujuinya Kontrak Bagi Hasil (PSC). Tujuan penelitian adalah untuk menentukan jumlah sumur pengembangan dengan metode decline curve dalam waktu kontrak dua puluh lima tahun,Metode yang digunakan pehitungan cadangan reservoir gas  motode decline curve dengan menghitung penurunan laju produksi gas sebesar decline 10 % setiap tahun dimulai pada tahun 2024. Jumlah sumur pengembangan dengan laju alir gas 10,37 MMSCF/d, jumlah maksimum cadangan hidrokarbon yang dapat diproduksikan kepermukaan secara komersial 3.214.956 MMSCF selama kurun waktu 25 tahun. Produksi pertama kali dilakukan pada tahun ke-5 yaitu tahun 2024 hingga tahun ke-21 tahun 2040 dengan 7 (tujuh) sumur produksi, terdiri dari 2 (dua) sumur exisiting dan 5 (lima) sumur pengembangan, yang mana jumlah cadangan yang diproduksikan sebesar 3.201.207 MMSCF.
Synthesis of Cellulose Straw and Rice Husk as Raw Materials for Bioplastic Production Hardi, Gilar Wisnu; Dewi, Berlian Kusuma; Toruan, Sari Artauli Lumban; Nurjanah, Suci; Fitriana, Syifa Ayu; Yunita, Lia
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13795

Abstract

The development of environmentally friendly materials such as bioplastics is a solution to reduce the negative impact of conventional plastics on the environment. This study presents a novel approach by utilizing hemicellulose extracted from rice straw and husks—abundant agricultural waste materials—as the main raw materials for bioplastic production. Hemicellulose was extracted using the alkalization method, and its characterization was carried out through FTIR analysis to identify typical polysaccharide functional groups. The results of the analysis showed the presence of O-H, C-H, and C-O-C groups, which indicate the glycosidic structure of hemicellulose, as well as indications of residual lignin with C=C groups. The resulting hemicellulose was then processed into bioplastics with the addition of plasticizers and reinforcing materials, incorporating glycerin, CMC, and TiO₂ to enhance mechanical properties and biodegradability. Mechanical and degradation tests demonstrated superior performance, highlighting the synergy between these additives. This study provides an innovative strategy for transforming agricultural waste into high-value bioplastics, contributing to sustainability and advancing green material technology.
The Effect of Capital Structure and Profitability on Company Value in the Food and Beverage Sector in Indonesia Yunita, Lia; Ridloah, Siti; Humaira, Hanina
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 2 (2024): JETBIS : Journal Of Economics, Technology and Business
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i2.91

Abstract

The value of the company has a direct impact on the maximum shareholder prosperity if the company's share price increases and this value also reflects the extent to which the company is recognized by the public. This study aims to examine the effect of capital structure and profitability on firm value. The population of this research is the manufacturing companies in the food and beverage sub-sector which are listed on the Indonesia Stock Exchange for the 2017-2021 period, while the sample is 33 companies using purposive sampling technique, so the number of observations was 165 data. The data analysis method used panel data regression analysis with an analytical tool in the form of Eviews 10. The results of this study indicate that capital structure (DER) has a negative and significant effect on firm value, then profitabily (ROE) has a positive and significant effect on firm value.
The Effect of Capital Structure and Profitability on Company Value in the Food and Beverage Sector in Indonesia Yunita, Lia; Ridloah, Siti; Humaira, Hanina
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 2 (2024): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i2.91

Abstract

The value of the company has a direct impact on the maximum shareholder prosperity if the company's share price increases and this value also reflects the extent to which the company is recognized by the public. This study aims to examine the effect of capital structure and profitability on firm value. The population of this research is the manufacturing companies in the food and beverage sub-sector which are listed on the Indonesia Stock Exchange for the 2017-2021 period, while the sample is 33 companies using purposive sampling technique, so the number of observations was 165 data. The data analysis method used panel data regression analysis with an analytical tool in the form of Eviews 10. The results of this study indicate that capital structure (DER) has a negative and significant effect on firm value, then profitabily (ROE) has a positive and significant effect on firm value.
Co-Authors Dewi, Berlian Kusuma Fitriana, Syifa Ayu Hardi, Gilar Wisnu Humaira, Hanina Listriyanto, Listriyanto Nurjanah, Suci Rahmahdani, Ria Siti Ridloah Toruan, Sari Artauli Lumban