• Uji Pengaruh Konsentrasi Biosolar Berbahan Aditif Minyak Kayu Putih Terhadap Kinerja Motor Bakar Diesel 

  Hulu, Tommy Putra (Universitas Sumatera Utara, 2025)

  The increasing use of agricultural mechanization, and the increasing need for fossil fuels. And the depletion of fossil fuel reserves from petroleum over time. With these problems, alternative fuels from vegetable oil ...

• Pengaruh Tingkat Pemberian Air dengan Fertigasi Tetes Pada Media Tanam Cocopeat terhadap Pertumbuhan Tanaman Cabai Merah Keriting (Capsicium annum L.) 

  Syafitrah, Ajeng (Universitas Sumatera Utara, 2025)

  The level of watering in cocopeat planting media plays an important role in determining the irrigation strategy of the plant. The study was conducted to obtain the growth of curly red chilies by providing tiered water ...

• Pengaruh Variasi Kecepatan Putar pada Alat Mesin Penepung Tipe Disk Mill FFC-15 dalam Pembuatan Tepung Beras Skala Rumah Tangga Secara Mekanis 

  Aulia, M. Rifky (Universitas Sumatera Utara, 2025)

  Indonesia is a country whose flour needs increase every year, especially rice flour. Based on data from the Center for Agricultural Data and Information Systems (Pusdatin Kementan) in the 2017 Food Consumption Statistics ...

• Uji Kinerja Biobaterai Berbasis Karbon Sekam Padi dan Serbuk Gergaji dengan Variasi Komposisi Elektrolit Larutan NaCl 

  Nabilah, Siti (Universitas Sumatera Utara, 2025)

  Biobattery is one of the environmentally friendly innovations that can store energy by utilizing organic materials as a source of energy. This research aims to determine the effect of variations in NaCl solution ...

• Rancang Bangun Sistem Pengisian Baterai Berbasis Panel Surya Pada Alat Penebar Pupuk Dengan Sistem Remote Controller 

  Sirait, Nicholas (Universitas Sumatera Utara, 2025)

  The development of agricultural technology has increasingly required more efficient tools for fertilizer distribution. This study employed an experimental approach by developing a battery charging system powered by a solar ...

• Kajian Perbedaan Tanaman Penutup Mucuna bracteata DC. dan Pueraria phaseoloides Terhadap Sifat Fisika Tanah Ultisol 

  Amanda, Syafia (Universitas Sumatera Utara, 2025)

  Ultisol soil was classified as marginal soil, characterized by unfavorable physical properties for agriculture, including high soil bulk density, low soil porosity, acidic pH, and low organic matter and nitrogen content. ...

• Pengaplikasian Sensor Suhu sebagai Sistem Kendali pada Alat Pendingin Biji Kopi setelah Proses Penyangraian 

  Perangin Angin, Adolf Juni Bastian (Universitas Sumatera Utara, 2025)

  ADOLF JUNI BASTIAN PERANGIN ANGIN: Pengaplikasian Sensor Suhu Sebagai Sistem Kendali Pada Alat Pendingin Biji Kopi Setelah Proses Penyangraian, dibimbing oleh LUKMAN ADLIN HARAHAP. Kopi merupakan komoditi yang sering ...

• Kajian Kondisi Kesehatan Sub Daerah Aliran Sungai (DAS) Bekala Berdasarkan Aspek Hidrologi 

  Gulo, Aiderman (Universitas Sumatera Utara, 2025)

  The health of Watershed (DAS) is greatly influenced by hydrological aspects, such as surface flow coefficient, maximum and minimum discharge, river regime coefficient, water yield, water use index (IPA), and water ...

• Kajian Laju Infiltrasi Beberapa Jenis Cairan pada Tanah Andosol 

  Maulana, Muhammad Jabar (Universitas Sumatera Utara, 2025)

  Infiltration was a crucial mechanism in the hydrological cycle, playing a significant role in groundwater recharge and flood risk reduction. The infiltration rate of liquids into the soil was influenced by the liquid’s ...

• Studi Dampak Variasi Suhu dan Waktu Pengeringan Mekanis terhadap Kualitas Biji Kakao 

  Aritonang, Robert Yesayas Aprian (Universitas Sumatera Utara, 2025)

  Drying is one of the important factors in cocoa bean processing, where drying must pay attention to temperature and humidity. This research aimed to evaluate the effect of temperature variation on moisture content, aroma, ...

• Analisis Limbah Kulit Buah-Buahan Menjadi Sumber Energi Listrik 

  Ginting, Harry Juanta Deofinka (Universitas Sumatera Utara, 2025)

  The increasing need for electricity can also be seen from many remote villages that have not received electricity for 24 hours. Alternative electricity is environmentally friendly and renewable. The use of fruit peel waste ...

• Pengaruh Interval Waktu Pemberian Air pada Tanah Aluvial terhadap Pertumbuhan Tanaman Tomat (Solanum lycopercium L. var servo) 

  Sagala, Weslen (Universitas Sumatera Utara, 2025)

  Tomatoes are vegetable plants that are very sensitive to water shortages. Lack of water availability during the growth and development phase of plants will cause stress (stress) so that it is necessary to calculate the ...

• Uji Kinerja Mesin Penggiling Tipe Disk Mill FFC 15 Dalam Pembuatan Tepung Beras 

  Hutauruk, Felix Sihar Jeremy (Universitas Sumatera Utara, 2025)

  A common agricultural crop processed into various types of food is rice. Rice is often made into rice flour before being processed. This method, known as rice milling, uses specialized machines such as the FFC-15 disc mill. ...

• Pemetaan Daerah Resapan Air di Sub Daerah Aliran Sungai (DAS) Bekala 

  Fathsya, Putri (Universitas Sumatera Utara, 2025)

  This research aimed to map the groundwater recharge areas in the Bekala Sub Watershed using Geographic Information System (GIS). The analysis was conducted based on four main parameters: rainfall, slope gradient, soil ...

• Pengaruh Interval Waktu Pemberian Air pada Tanah Aluvial terhadap Pertumbuhan Tanaman Tomat (Solanum lycopercium L. var servo) 

  Sagala, Weslen (Universitas Sumatera Utara, 2025)

  Tomatoes are vegetable plants that are very sensitive to water shortages. Lack of water availability during the growth and development phase of plants will cause stress (stress) so that it is necessary to calculate the ...

• Rancang Bangun Sistem Pengendali Konsentrasi Nutrisi Hidroponik Deep Flow Technique (DFT) Tanaman Sawi Berbasis Internet of Things (IoT) 

  Tairio, Anthony (Universitas Sumatera Utara, 2025)

  Hydroponic plant cultivation, particularly the DFT system, requires precise control of nutrient concentration, temperature, and pH levels in the solution to ensure optimal growth of Chinese cabbage plants. Currently, ...

• Uji Berbagai Variasi Diameter Pulley pada Mesin Peeler Kentang (Solanum tuberosum L.) Tipe Silinder 

  Mahirah, Khairunnisa (Universitas Sumatera Utara, 2025)

  Potato commodities are widely used as basic ingredients for food processing which ultimately urges innovation from various tools and machines to support production. This cylindrical peeler machine is designed to peel ...

• Sistem Pemantauan Ph Suhu dan Kelembaban Udara pada Prototype Greenhouse Berbasis Internet of Things 

  Karo-karo, Agia Frasetya (Universitas Sumatera Utara, 2025)

  Real-time monitoring of environmental parameters in greenhouses is crucial to support optimal plant growth. This study aims to design a prototype IoT- based system for monitoring air temperature, water temperature, air ...

• Kajian Persentase Sodium Hidroksida pada Campuran Limbah Padat Sawit terhadap Energi Listrik yang Dihasilkan dalam Pembuatan Bio-Baterai 

  Napitupulu, Romauli Br (Universitas Sumatera Utara, 2025)

  The abundant palm solid waste as a by-product of the palm oil industry can be converted into alternative energy that is environmentally friendly, its composition contains cellulose, ash, lignin and hemicellulose. This ...

• Penggunaan Pasta Elektrolit Dari Pelepah Kelapa Sawit Dan Kulit Pisang Sebagai Bahan Pembuatan Bio-Baterai 

  Siboro, Adriel (Universitas Sumatera Utara, 2025)

  Organic waste from oil palm fronds and banana peels can be converted into alternative energy that is solution-oriented and environmentally friendly. Oil palm frond waste and banana peels contain electrolytes that can be ...

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