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Koleksi semua artikel yang dipublikasikan dalam Bahasa Inggris.
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Analisis Karakteristik Gangguan Hubung Singkat Antar Belitan Transformator Menggunakan Transformasi Wavelet Diskrit
Oleh: Sinaga, Herman Halomoan, Sitorus, Henry Binsar H., Risky, Risky
Transient fault could occur on transformer in power system. This is could be because of internal fault or external fault. Disturbance could be because of short circuit between winding of transformer or because of short circuit on load. Short circuit on transformer winding could lead to catastrophic ...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 07 February 2012
Perancangan dan Simulasi Sistem Kompresi Suara dengan Transformasi DCT
Oleh: Alam, Syaiful
This paper discuss design of sound compression system using VHDL syntax, XACT tools step 6.0, Xilinx Inc. and Proseries View Logic System. This process covered entry design, simulation by functionally or static clock. The compression system using the maximum clock frequency 2,8 MHz. The simula...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 07 February 2012
PENEKANAN HAYATI PENYAKIT MOLER PADA BAWANG MERAH DENGAN TRICHODERMA HARZIANUM, TRICHODERMA KONINGII, DAN PSEUDOMONAS FLUORESCENS P60
Oleh: ., Suprapto Edy Santoso, Loekas Soesanto, dan Totok Agung Dwi Haryanto
Biological Suppression of Moler Disease on Shallot by Trichoderma harzianum, Trichoderma koningii, and Pseudomonas fluorescens P60. Research aiming for (1) knowing efectivity of biological suppression with T. harzianum, T. koningii, and P. fluorescens P60 and (2) studying growth and production...
Penerbit: Universitas Lampung • Publikasi: 08 February 2012
POTENSI ERIONOTA THRAX SEBAGAI AGEN PENYEBAR PATOGEN PENYEBAB PENYAKIT LAYU BAKTERI PADA TANAMAN PISANG (BLOOD DISEASE BACTERIUM)
Oleh: ., Radix Suharjo, Edhi Martono, dan Siti Subandiyah
Potential of Erionota thrax to spread the causal agen of banana bacterial wilt (Blood Disease Bacterium). This study was conducted in Gerbosari, Samigaluh, Kulonprogo, Yogyakarta and in the Laboratory of Bacteriology and Entomology, Faculty of Agriculture, Gadjah Mada University, Yogyakarta during D...
Penerbit: Universitas Lampung • Publikasi: 08 February 2012
STRUKTUR KOMUNITAS HYMENOPTERA PARASITOID PADA TUMBUHAN LIAR DI SEKITAR PERTANAMAN PADI DI DAERAH ALIRAN SUNGAI (DAS) CIANJUR, JAWA BARAT
Oleh: dan L.B. Prasetyo., Yaherwandi, S. Manuwoto, D. Buchori, P. Hidayat,
Hymenoptera Parasitoid Community Structure on Non-crops Vegetation Around Rice fields in Cianjur Watershed, West Java. Hymenoptera parasitoids have an important role in agroecosystem because of their ability in suppressing pest population. Their presence in the field is seen as the key to agricultur...
Penerbit: Universitas Lampung • Publikasi: 09 February 2012
Pola Peluahan Parsial (Partial Discharge-PD) Pada Bahan Isolasi Epoxy Resin
Oleh: Sitorus, Henry Binsar H., Sinaga, Herman H., Jaenussolihin, M.
High voltage insulation failure that led to the breakdown of events is crucial reliability of a power system Most of the failure of the insulation caused by the presence of PD activity on the insulation material, especially the solid insulation which triggering the growing of electrics tree. To ...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 10 February 2012
Pengendalian Kecepatan Motor Arus Searah Dengan Logika Fuzi
Oleh: Haris, Abdul, Alam, Syaiful, Sari, Meisi Diana
The system which implements Fuzzy Logic Controller (FLC) on AT89C52 for controlling the speed of DC motor is not only able to stabilize the motor speed according to desired setpoint but also stabilize it on variable loads. The speed control is performed by regulating field voltage Vf with regulator ...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 10 February 2012
Pemilihan Kapasitas Dan Lokasi Optimal Kapasitor Paralel Pada Sistem Distribusi Daya Listrik
Oleh: Zebua, Osea
Parallel capacitor have been many used for reactive power compensation in electric power distribution system. Parallel capacitor placement with no appropriate size and location often cause bus voltage excess their limit and also increase power losses. Therefore, the operation cost becomes bigger...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 10 February 2012
Respons Impuls Pada Elektroda Pentanahan Batang Tunggal Untuk Menentukan Nilai Impedansi Pentanahan
Oleh: Sinaga, Herman H., Ketaren, Gamaliel, Sunardi, Anang
A good grounding system belived if the its resistance has a small value that measured with DC source or low frquency. Meanwhile, lightning stroke that caused impulse current with high frequency up to kHz, so when gounding system work when striking by lightning, its impedance not only mark out by res...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 10 February 2012
Analisis Kontingensi Terhadap Probabilitas Blackout Pada Jaringan Sistem Tenaga Menggunakan Model Bertingkat
Oleh: Despa, Dikpride
Electrical power system network is a very complex network which consist several component that interact between one and another. When one component operate exceed its limitation then protection system will react and that component will be cut off from the system. Component could also be cut off from...
Penerbit: Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung • Publikasi: 10 February 2012