Judul: Desain Kapasitas Produksi Listrik Berdasarkan Debit Andalan Berkelanjutan di Daerah Aliran Sungai Cidanau.
Abstrak: Planning development Project of Micro Hydro Power (PMHP) is one of the important thing in the allocation of water resources in rural areas. Planning PMPH observed located in Kubang Baros Village, Serang District, Banten. In planning PMPH, besides planning design capacity of the production electricity, need to know the condition of existing allocation of water resources in the upstream areas. Allocation of water resources accounted by predict water demand for region subdistrict Cinangka, Padarincang and Ciomas in 2050. Calculation water needs aims to the amount of water available can sustain to be used in a long time. So, the allocation for water resources can be run in sustainable and stable. Based on the results of the study determined that the Cidanau Watershed produce reliability discharge equal to 3.51 m3/sekon, with a prediction of water requirement in 2050 is 2.1 m3/sekon. The conclusion for this planning design of electrical production capacity produces electrical power equal to 387.91 kW.
Keyword: Reliability Discharge, Electrical Design Capacity Production

Judul: Perancangan Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) Di Sungai Cikaniki, Desa Malasari, Kecamatan Nanggung, Kabupaten Bogor
Abstrak: Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) merupakan salah satu alternatif sumber energi berkelanjutan untuk memenuhi kebutuhan listrik masyarakat. Teknologi ini sudah ada sejak tahun 1970 namun penggunaannya belum banyak di Indonesia. Tujuan penelitian ini adalah menghitung debit andalan di Sungai Cikaniki, menghitung kapasitas produksi listrik yang dapat dihasilkan serta merancang desain dasar Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) dengan mengacu pada sistem sejenis yang sudah terpasang di daerah lain. Penelitian ini dilakukan dari bulan Februari hingga Juni 2016 di Desa Malasari, Kabupaten Bogor. Persamaan linier dari kurva debit yang telah dibuat digunakan untuk penentuan debit di lokasi penelitian. Berdasarkan hasil perhitungan, debit andalan yang didapatkan sebesar 1.24 m3/detik. Direncanakan tinggi jatuh (head) untuk PLTMH di Sungai Cikaniki sebesar 8.5 m dengan tinggi jatuh efektif 6.37 m, sehingga didapatkan daya listrik sebesar 62.8 kW. PLTMH ini dirancang akan menggunakan turbin propeller.
Keyword: daya listrik, debit andalan, perancangan, PLTMH

Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity