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All Journal Jurnal Teknik Mesin Jurnal Kesehatan Saintika Meditory
Oktaviani, Vira
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Health Professions Mechanical Engineering Medicine & Pharmacology Nursing Public Health

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STUDY AND DESIGN OF STREET LIGHTING SYSTEMS USING SOLAR PANEL Anggara, Fajar; Carles, Henry; Oktaviani, Vira
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v13i3.29990

Abstract

Due to scarcity of fossil fuel, alternative energy has been used upon renewable energy. This research discussed about street lighting plan at PT. Haraka Erfi Kosmetindo Abadi which used solar panels as an alternative energy. The study aims to determine design the capacity of solar panels, batteries and inverters to meet the needs of road lights. The results show that 7 solar panels of 100 Wp are needed, along with 3 units of batteries with a capacity of 100 Ah, 1 unit of PWM type Solar Charge Controller with a capacity of 60 A, and 1 unit of Modified Sine Wave type inverter with a capacity of 500 W. Furthermore, an efficiency of 14.37% was obtained from this system.
Analysis of Factors Affecting the Nutritional Status of School-Age Children at SDN 31 Pasar Ambacang Padang Fridalni, Nova; Hardini, Sandra; Oktaviani, Vira; Sari Dewi, Ratna Indah; Yanti, Etri
Jurnal Kesehatan Saintika Meditory Vol 8, No 2 (2025): November 2025
Publisher : STIKES Syedza Saintika Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30633/jsm.v8i2.30638

Abstract

The nutritional status of school-age children is an important indicator in determining the quality of future human resources. This study aimed to identify factors associated with the nutritional status of school-age children at SDN 31 Pasar Ambacang, Padang City. The research used a quantitative method with a correlational design and a cross-sectional approach. The population consisted of all students at SDN 31 Pasar Ambacang and their mothers, with 68 respondents selected using proportionate random sampling. Data were collected through anthropometric measurements (body weight and height) and questionnaires on children's eating patterns and mothers’ nutritional knowledge, then analyzed using the Chi-Square test (p < 0.05). The results showed that most children had poor nutritional status (72.1%), unhealthy eating patterns (76.5%), no breakfast habits (64.7%), and low maternal nutritional knowledge (64.7%). Statistical analysis revealed significant relationships between eating patterns (p=0.003), breakfast habits (p=0.001), and mothers’ nutritional knowledge (p=0.022) with children's nutritional status. The study concluded that healthy eating patterns, regular breakfast habits, and adequate maternal nutritional knowledge contribute to optimal nutritional status among school-age children.Keywords: Nutritional status; Eating patterns; Breakfast habits; Maternal knowledge
Co-Authors Anggara, Fajar Carles, Henry Fridalni, Nova Hardini, Sandra Sari Dewi, Ratna Indah Yanti, Etri