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Hasil Pencarian

Ditemukan 12290 dokumen yang sesuai dengan query
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Chantry, George W.
London: Academic Press, 1984
535.012 CHA l
Buku Teks SO  Universitas Indonesia Library
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Chantry, George W.
London : Academic Press, 1984
535.012 CHA l
Buku Teks SO  Universitas Indonesia Library
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"Remote controlling tools often make our life better and easier.We can control our instruments remotely without any place problem...."
004 CJTK 1:1 (2008)
Artikel Jurnal  Universitas Indonesia Library
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Ivan Eka
"Analisa pelumas adalah bagian dari kegiatan pemeliharaan prediktif yang dilakukan secara rutin pada banyak industry karena lebih efektif dan efisien untuk mencegah kemungkinan kerusakan lebih dini dan pemborosan dalam biaya pemeliharaan. Sehingga pada Penelitian ini dikembangkan prototype sensor berbasis near infra red untuk menganalisa sisa umur pelumas. Sensor mendeteksi gugus N-H pada bilangan gelombang 9000-10000 cm-1 yang merupakan hasil dari proses degradasi pelumas.
Hasil penelitian menunjukkan sensor near infra read dapat mendeteksi perubahan sisa umur pelumas dan menunjukkan kecenderungan yang sama dengan p.

Lubricant analysis is part of routine predictive maintenance in many industry because more effective and efficient to avoid possible engine failure and unnecessary cost. So in this research was developed a prototype near infra red sensor to analysis remaining useful lubricant life. This sensor detected N-H spectrum at 9000-10000 cm-1 where is lubricant degraded.
The result was shown near infra red detected the change of remaining useful lubricant life and shown similar trend with the change of lubricant viscosity, lubricant acidity (Total Acid Number), and FTIR spectrum."
Depok: Fakultas Teknik Universitas Indonesia, 2009
T25867
UI - Tesis Open  Universitas Indonesia Library
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Fakultas Teknik Universitas Indonesia, 1995
S38422
UI - Skripsi Membership  Universitas Indonesia Library
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Als-Nielsen, Jens
New York: John Wiley & Sons, 2000
539.7 ALS e
Buku Teks SO  Universitas Indonesia Library
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Muhammad Imam Surya
"ABSTRAK
Sweet sorghum is a kind of sorghum that contains high content of sugar in its stem. Sweet sorghum has a big potential to be developed in Indonesia owing to its wide adaptation and the fact that it can be used as raw material for liquid sugar, syrup, ethanol, and also as animal feed. Sweet sorghum has not been developed in Indonesia because of lack of a sweet sorghum variety. Improvement of available sweet sorghum genotype can be done among others through plant breeding program. First step on the plant breeding program is to increase the plant genetic variability. This might be done by introduction of varieties or by breeding to create new varieties. Induced mutation using Gamma irradiation can be used to increase the genetic variability of sweet sorghum. Mutation breeding using Gamma irradiation in sweet sorghum was aimed at improving the yield and quality of sweet sorghum.
This research was conducted to study the effect of Gamma irradiation on sweet sorghum growth in the M1 generation, and to estimate the optimal dose range suitably for the breeding program. Beside, the objective of this research was to evaluate the genetic variability for the purpose of plant selection in the M2 generation.
Plant materials consisted of 2 sweet sorghum lines introduced from ICRISAT namely line No. 79 and No. 83. Non-saccharin sorghum of local variety Fiigari was used as a control. The doses of Gamma irradiation treatment were 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 Gy. The Ml plants were sown in greenhouse at PATIR-BATAN Jakarta, and then were transplanted in the experimental field at Balitbiogen, Bogor. The M2 plants were grown in the experimental field at Lubang Buaya, Jakarta. Important agronomic traits such as plant height, spike length, stem diameter, and grain weight/spike were observed.
The results indicated that sorghum lines gave different response to Gamma irradiation, and all measured variables were significantly affected. Irradiation gave morphology and physiology damages on sorghum like abnormality, sterility, and lethality in the Ml generation. The increase of irradiation doses increased physiological damage. Effective doses of Gamma irradiation for sweet sorghum was to be around 400-500 Gy, and the lethal doses 50% of sweet sorghum was around 800-1000 Gy. Putative mutation sometimes could be observed in the M2 generation. The treatment of Gamma increased genetic variability of plant height, spike length, stem diameter, and grain weight/spike. The highest genetic variability was found in the dose treatment of 200-300 Gy. Within this interval dose, there might be high probability to find desirable mutants for further breeding purpose. A number of 38 plants had been selected from the M2 population as putative mutants.
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2007
T20182
UI - Tesis Membership  Universitas Indonesia Library
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Sandstrom, A.E.
Amsterdam: North-Holland, 1965
539.722 3 SAN c
Buku Teks SO  Universitas Indonesia Library
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Putu Oka Semadhi
"Dalam penelitian ini telah dilakukan pengukuran dan perhitungan nilai Tissue Maximum Ratio (TMR) untuk dua berkas sinar-X yaitu 6 dan 10 MV. Pengukuran nilai TMR dilakukan untuk 18 macam ukuran lapangan radiasi dengan variasi kedalaman. Perhitungan nilai TMR dilakukan dengan menggunakan data Percentage Depth Dose (PDD) Hasil penelitian menunjukkan bahwa secara umum nilai TMR hasil pengukuran bernilai lebih kecil dari nilai TMR hasil perhitungan. Hal ini disebabkan karena perhitungan nilai TMR mengabaikan rasio Peak Scatter Factor (PSF). Deviasi antara keduanya bernilai maksimum sebesar 4,73 % untuk lapangan 40x40 cm2 pada kedalaman 14 cm untuk kualitas berkas sinar-X 6 MV.

Tissue Maximum Ratio (TMR) measurements and calculations have been done in this work for 6 and 10 MV LINAC beams with 18 of field sizes at varying depths from zmax to 15 cm. Alternate TMR calculations been done by using Percentage Depth Dose (PDD) data?s. The results generally showed that values of measured TMR was smaller than calculated TMR. This is caused by ignoring Peak Scatter Factor (PSF) ratio. Deviation between measured and calculated data reach maximum for 4.73 % for 40x40 cm2 field at depth of 14 cm for 6 MV beams."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2006
S28862
UI - Skripsi Membership  Universitas Indonesia Library
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Fiqron
"Telah dilakukan pengukuran faktor keluaran (OF) berkas sinar-X 6 MV dan 10 MV untuk lapangan bujur sangkar dan persegi panjang produksi linac varian 2100C. Ukuran lapangan yang digunakan berkisar dari 4x4 cm2 sampai 30x30 cm2 . Pengukuran dilakukan pada kedalaman efektif pengukuran 5,2 cm dan 10,2 cm dengan SSD 100 cm. Pada lapangan persegi panjang nilai OF didapatkan dengan metode pengukuran langsung dan kalkulasi dengan metode Sterlling. Hasil pengukuran menunjukkan hasil OF keduanya memiliki perbedaan yang sangat kecil untuk kedua berkas energi sinar-X pada masing-masing bentuk lapangan. Nilai OF mengalami kenaikan seiring meningkatnya ukuran lapangan yang digunakan. Penentuan nilai OF dengan menggunakan metode Sterllling dan pengukuran langsung pada lapangan persegi panjang juga tidak berbeda secara signifikan. Kata kunci : faktor keluaran, lapangan bujur sangkar, lapangan persegi panjang, sinar-X 6 MV dan 10 MV.

The measurement has been performed to know the output factors (OF) of 6 MV and 10 MV X-ray beams for square and rectangular fields. The field size used for the measurement range between from 4x4 cm2 to 30x30 cm2. The measurement were done at effective depths of 5,2 cm and 10,2 cm with SSD 100 cm. On the rectangular field, OF was obtained by direct measurement method and calculated by Sterlling method. The results of measurement showed that both OF’s results have very small differences for both energies on each field shape. The OF’s values increase along with the field size increase. The OF values determined by using calculated Sterlling method and direct measurement on rectangular field do not show significant differences."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2007
S28877
UI - Skripsi Membership  Universitas Indonesia Library
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