Ditemukan 7 dokumen yang sesuai dengan query
Retno Wigajatri Purnamaningsih
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Sejauh ini, metode optik untuk pengukuran konsentrasi phytoplankton masih jarang dimanfaatkan di Indonesia. Dalam penelitian ini dilakukan perancangan, perakitan dua sensor optik untuk mengukur konsentrasi phytoplankton, khususnya chlorella spp. galur UI Depok yang dikulturkan dalam medium ekstrak tauge.
Penelitian ini terdiri atas dua bagian utama, yaitu pengujian karakteristik optik yang mencakup sifat absorpsi dan fluoresensi Chlorella spp. serta perancangan, perakitan dan pengujian dua sensor optik berdasarkan sifat termaksud. Sensor optik terdiri dari konfigurasi sensor I yang ...
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Depok: Fakultas Teknik Universitas Indonesia, 2006
D665
UI - Disertasi Membership Universitas Indonesia Library
Wahyu Setia Budi
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The role of shock wave in the generation of laser induced secondary plasma was first suggested by Kagawa et al. from an experimental result employing N2 laser on metal targets at reduced surrounding air pressure. This so-called shock wave induced plasma model has since been reexamined and confirmed in a series of experiments performed by Kurniawan and Kagawa et al. using TEA (Transversely Excited Atmospheric) CO2 laser and XeCI excimer laser. All of these experiments ...
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Depok: Fakultas Teknik Universitas Indonesia, 1999
D84
UI - Disertasi Membership Universitas Indonesia Library
Pardede, Marincan
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In spite of abundant experimental evidences supporting the viability of the laser induced shock wave plasma model for the explanation of the important features ofthe plasma and the associated spectroscopic characteristics, a controversy on the atomic excitation mechanism in the plasma has remained to be completely resolved. In this study the contributions of the shock wave model and two other most popular models, the electron-ion recombination model and thc electron collision model were thoroughly investigated. ...
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Depok: Fakultas Teknik Universitas Indonesia, 2002
D1367
UI - Disertasi Membership Universitas Indonesia Library
Rinda, Hedwig
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ABSTRACT
An comprehensiove study has been carried out for the study and extension of lases induce shock wave plasma spectroscopy (LISPS) application to non metalic soft and hard samples. For this purpose, a series of experiments were conducted to investigate the dynamical process taking place in the laser plasma generated by a high power and short pulse laser irradiations on a non metal soft and hard samples it was found that in the case of non ...
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2002
D1364
UI - Disertasi Membership Universitas Indonesia Library
Rinda, Hedwig
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ABSTRACT
An comprehensiove study has been carried out for the study and extension of lases induce shock wave plasma spectroscopy (LISPS) application to non metalic soft and hard samples. For this purpose, a series of experiments were conducted to investigate the dynamical process taking place in the laser plasma generated by a high power and short pulse laser irradiations on a non metal soft and hard samples it was found that in the case of non ...
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2002
D33
UI - Disertasi Membership Universitas Indonesia Library
Pardede, Marincan
"
ABSTRACT
In spite of abundant experimental evidences supporting the viability of the laser
induced shock wave plasma model for the explanation of the important features ofthe
plasma and the associated spectroscopic characteristics, a controversy on the atomic
excitation mechanism in the plasma has remained to be completely resolved. In this
study the contributions of the shock wave model and two other most popular models,
the electron-ion recombination model and thc electron collision model were
thoroughly investigated. For that purpose, a special technique ...
"
2002
D268
UI - Disertasi Membership Universitas Indonesia Library
Marpaung, Mangasi Alion
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ABSTRACT
A comprehensive study has been made on the dynamical process taking place in the laser-plasma generation i.nduced by a TEA CO2 laser bombardment on metal target and non-metal target Eom low to high pressures surrounding gas. ln the case of metal target, pure zinc plate was used as a target and bombarded with 400 ml laser pulse energy. Dynamical characterization of plasma expansion and excitation were examined in detail both for target atomic emission (Zn ...
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2000
D1361
UI - Disertasi Membership Universitas Indonesia Library
