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Reduksi Bising Motor Diesel Menggunakan Partial Enclosure
Oleh: Suudi, Ahmad
Noise is one of the environmental problems that we must concern on it, not just it can produce healthy problems, but it can reduce working productivity too. This research is aimed to reduce noise produced by diesel engine in the laboratory of motor combustion engine.The experiment was conducted ...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Analisis Limit Momen Pipa Elbow dengan Beban In-Plane Bending
Oleh: Lubis, Asnawi
Pipe bends or elbows are of important component in a piping system. In addition to its function for changing the direction of piping due to layout restriction, an elbow can accommodate expansion because it is more flexible than an equivalent straight pipe with the same material and dimension. Howeve...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Studi Kekuatan Sambungan Las Baja AISI 1045 dengan Berbagai Metode Posisi Pengelasan
Oleh: ., Tarkono
Lingkup penggunaan teknik pengelasan dalam kontruksi sangat luas, meliputi perkapalan, jembatan, rangka baja, bejana tekan, pipa pesat, pipa saluran, kendaraan rel dan lain sebagainya. Selain untuk pembuatan, proses pengelasan juga digunakan untuk reparasi atau perbaikan. Posisi atau sikap pengelasa...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Effect of Cutting Parameter Variation on Drilling of AISI 1045: Experimental and Simulation
Oleh: Burhanuddin, Yanuar
This work is focused on the study of the effect of spindle speed and feed rate on the tool temperature distribution in the drilling of AISI-1045 steel. The e data were collected under different cutting conditions. The maximum tool temperature is predicted during the drilling using finite element sim...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Redesign of Pneumatic Piston Using Design for Manufacture and Assembly (DFMA) Technique
Oleh: ., Mustofa
Design for Manufacture and Assembly (DFMA) technique has been utilized intensively in industry for many years in order to increase the quality, decrease the cost and shorten the cycle time of a product. This paper is a detail application of the technique in the pneumatic piston product. The redesi...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Pengujian Karakteristik Perpindahan Panas dan Penurunan Tekanan dari Sirip-Sirip Pin Diamond Susunan Segaris dalam Saluran Segiempat
Oleh: Istanto, Tri
This research was conducted to investigate the characteristics of heat transfer and pressure drop as well as the thermal performance of diamond pin fin array in the rectangular channel which air was passed through it as coolant fluid. The pin fins were arranged in inline manner. Dimension of base pl...
Penerbit: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung • Publikasi: 03 September 2010
Effect of Oxalic Acid, Na+, NH4+, and Fe3+ on Release of Fixed Potassium and Basal Distance of Smectite in Smectitic Soils
Oleh: Nursyamsi, Dedi
Laboratory experiment aimed to study effect of oxalic acid, Na+, NH4+, and Fe3+ on the release of fixed potassium and basal distance of smectite in smectitic soils was conducted in Laboratory of Soil Sciences, Graduate School of Agriculture, Kyoto University, Japan. The experiment used four of topso...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2009
Use of Plant Derived Ash as Potassium Fertilizer and Its Effects on Soil Nutrient Status and Cocoa Growth
Oleh: Baon, John Bako
Analternative to replacing the expensive potassium (K) fertilizers, such as KCl, should be investigated by Indonesia as the third largest cocoa (Theobroma cacao L.) producing country. The objective of this study is to investigate the effect of plant derived ash (PDAsh) application on soil nutrient s...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2009
Kandungan Fosfor Tanaman Padi dan Emisi Karbon Tanah Gambut yang Diaplikasi dengan Amelioran Fe3+ dan Fosfat Alam pada Beberapa Tingkat Pemberian Air
Oleh: Nelvia, .
The addition of ameliorant Fe3+ and rock phosphates containing high Fe cation can reduce effect of toxic organic acids, increase peat stability through formation of complex compounds and reduce carbon emission. The research was conducted in the laboratory and green house of the Departement of Soil S...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2009
Correlation between Soil Test Phosphorus of Kaolinitic and Smectitic Soils with Phosphorus Uptake of Lowland Rice
Oleh: Masjkur, Mohammad
Correlation between soil test phosphorus (P) and plant-available P parameters were affected by soil properties, such as soil pH, particle-size composition, and mineralogy. The objectives of this research were: (1) to determine P concentration extracted by several soil P test method in kaolinitic and...
Penerbit: UNIVERSITY OF LAMPUNG • Publikasi: 01 September 2009