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Analisa Pengaruh Perilaku Petir pada Saluran Udara Tegangan Tinggi (SUTT) 150 kV Menggunakan Metode Burgsdorf Erhaneli Erhaneli; Afriliani Afriliani
Jurnal Teknik Elektro Vol 7, No 1 (2018): Jurnal Teknik Elektro
Publisher : Situs resmi ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.305 KB)

Abstract

Kebutuhan terhadap energi listrik semakin meningkat dari tahun ketahun akibat pertumbuhan jumlah penduduk yang sejalan dengan pertumbuhan perekonomian yang terjadi. Hal ini menyebabkan transfer daya dari pusat pembangkit ke pusat beban semakin tinggi. Saluran Udara Tegangan Tinggi (SUTT) merupakan salah satu media transmisi energi listrik yang banyak digunakan. Dimana saluran udara ini rentan terhadap sambaran petir yang dapat menyebabkan gangguan. Tujuan dari penulisan penelitian ini adalah untuk menganalisa pengaruh ketinggian menara terhadap jumlah gangguan sambaran petir pada kawat fasa akibat kegagalan perlindungan kawat tanah menggunakan metode Burgsdorf pada SUTT 150 kV dari GI Koto Panjang Ke GI Payakumbuh dengan panjang saluran 86 km. Dari hasil perhitungan dan analisa didapatkan bahwa pada menara dengan ketinggian 41 meter mengakibatkan jumlah gangguan sambaran petir pada kawat lebih besar yaitu 5.0238 kali sambaran petir/86 km penghantar/tahun atau gangguan terjadi sekali 2.4 bulan terkena sambaran petir dengan luas daerah yang dilindungi oleh kawat tanah sebesar 49541 m2.
AKTIVITAS ANTIBAKTERIA EKSTRAK METANOL DAUN TANAMAN Solanum ferox L Hazimah Hazimah; Zefri Azharman; Yuharmen Yuharmen; Virsa Rahyuti; Afriliani Afriliani
JURNAL REKAYASA SISTEM INDUSTRI Vol 4 No 1 (2018): (November 2018)
Publisher : Universitas Putera Batam

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Abstract

Solanum ferox or acid aubergine plants is one type of vegetable used as flavoring in food. Solanum ferox contains terpenoids, steroids, flavonoids, alkaloids and phenolics. Solanum ferox has antipyretic, antirheumatic, anti-asthma, antiviral and as a drug for syphilis. The purpose of this study is to test the antibacterial activity of leaf methanol extract of Solanum ferox plant. Leaf Solanum ferox is extracted using methanol. Methanol extract was tested for antibacterial activity using diffusion method to use E.coli, S.aureus and B.subtilis bacteria. Amoxicillin is used as a positive standard while negative controls are solvents used to dissolve samples. Antibacterial activity of methanol and amoxicillin extract showed inhibitory zones of E.coli of 7,72-11,67 mm and 19.97 mm, inhibitory zone to bacterium B.subtilis only at 5.7 μg/mL concentration of 11,29 mm and amoxicillin 18, 51 mm.
Konsep dan Urgensi Konstitusi dalam Kehidupan Berbangsa dan Bernegara Fedri Yani Wulandari; Afriliani Afriliani; Oza Salsa; Nurli Hayati; Bambang Trisno
Politika Progresif : Jurnal Hukum, Politik dan Humaniora Vol. 1 No. 3 (2024): September : Politika Progresif : Jurnal Hukum, Politik dan Humaniora
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/progres.v1i3.435

Abstract

The government of a country which has the power to regulate people's lives does not act arbitrarily, there is a regulatory system that regulates it. The control system describes a hierarchy or ranking from the highest level of rules to the lowest level of rules. The highest level of rules in a country is called the constitution. For this reason, it is necessary to strengthen knowledge about the concept and urgency of this institution in national and state life. The research method used was a literature review. By collecting library data and information by exploring knowledge or knowledge from sources such as books, journals, written works, lecture notes and several other sources that are related to the research object. The research results show that the Constitution is the implementation of legal rules in the relationship between society and government. Constitutionalism creates a situation that can increase feelings of security due to restrictions on previously established government authority. There are three views on the role of the constitution in national and state life, namely: The first view assumes that every country has a constitution, but the constitution should not be seen as everything. The second view assumes that the constitution is nothing more than the basic rules of the state in administering the state, and that the most important thing for the state is honest, authoritative and law-abiding state administration. The third view assumes that the constitution does not play a significant role in state life.
Problematika Keluarga dan Solusi Penanganannya Bunga Sovia Erik; Afriliani Afriliani; Hidayani Syam
JURNAL MULTIDISIPLIN ILMU AKADEMIK Vol. 2 No. 4 (2025): Agustus
Publisher : CV. KAMPUS AKADEMIK PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jmia.v2i4.5137

Abstract

The writing of this journal is motivated by family problems in Indonesia, which include financial problems, poor communication, parenting, work-life balance, quarrels, division of household chores, and lack of appreciation. The solution to overcome this problem is to improve communication, share tasks, and appreciate each other. This research is a qualitative research that is library-based (Library Research) using descriptive analysis. The results show that family problems are challenges that can affect family harmony and well-being, such as conflict, financial problems, domestic violence, and differences in perspective on child education. To overcome them, effective communication, conflict management skills, and appropriate approaches, such as psychodynamic, behavioral, and counseling, are needed, so that families can find solutions to achieve a happier and more balanced life.