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All Journal Ganendra: Majalah IPTEK Nuklir Ilmiah Manajemen Bisnis JTSL (Jurnal Tanah dan Sumberdaya Lahan) AGRIVITA, Journal of Agricultural Science JPAP (Jurnal Praktisi Administrasi Pendidikan)
Bambang Siswanto
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Social Sciences Other

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GAS SENSING PROPERTIES OF RUTILE-TiO2 (100) FILMS PREPARED BY PULSED LASER DEPOSITION Bambang Siswanto; Shunya Yamamoto; Masahito Yoshikawa
GANENDRA Majalah IPTEK Nuklir Volume 11 Nomor 2 Juli 2008
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.547 KB) | DOI: 10.17146/gnd.2008.11.2.139

Abstract

gas sensing property of TiO2 thin films have been demonstrated in rutile-TiO2 (100) films grown on the a-Al2O3 (0001)substrates by Pulsed Laser Deposition (PLD). High quality rutile-TiO2 (100) films were successfully grown on a-Al2O3(0001) with the substrate temperature at 500oC under 15 mTorr of O2 gas pressure. The thickness and crystallinity ofTiO2 films were evaluated by Rutherford backscattering spectrometry combined with channeling (RBS/C) and X-raydiffraction using q-2q scans. To evaluate CO2 gas sensing property of TiO2 films, the dependence of the changing ofelectrical resistivity on the temperature was measured. It’s found that high crystallinity rutile-TiO2 (100) films on the a-Al2O3 (0001) substrate kept at 100oC exhibits good gas sensing property for CO2 gas.Keywords: X-ray diffraction, laser epitaxial, TiO2 thin film, electrical resistivity, CO2
CONCEPT OF ELECTRON SOURCE BASED ON PULSED PLASMA DISCHARGE Widdi Usada; Wirjoadi Wirjoadi; Agus Purwadi; Bambang Siswanto
GANENDRA Majalah IPTEK Nuklir Volume 12 Nomor 2 Juli 2009
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.727 KB) | DOI: 10.17146/gnd.2009.12.2.153

Abstract

CONCEPT OF ELECTRON SOURCE BASED ON PULSED PLASMA DISCHARGE. The lack of continuous electronbeam machine is electron current limitation and heating impact on target. So it is needed a new machine which will givehigher current in the pulsed mode operation. This paper offers on the possibility of pulsed plasma discharge as a pulseelectron source. By using simple equation, it can be achieved some interesting parameters such as plasma current,rise time etc. The result is useful as basic understanding in designing this machine.
Perkembangan Konsep dan Penelitian Green Marketing: Analisis Pustaka Bambang Siswanto
Ilmiah Manajemen Bisnis vol. 10 no. 1 Januari 2010
Publisher : Ilmiah Manajemen Bisnis

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Abstract

Evaluasi Kenaikan Pajak Air Tanah di Provinsi DKI Jakarta Bambang Siswanto; Suharno .
Ilmiah Manajemen Bisnis vol. 10 no. 3 September 2010
Publisher : Ilmiah Manajemen Bisnis

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Abstract

PENGARUH KANDUNGAN SULFUR TERHADAP KONSTANTE KISI KRISTAL CuIn (Sx,Se1-x)2 Wirjoadi Wirjoadi; Bambang Siswanto
GANENDRA Majalah IPTEK Nuklir Volume 13 Nomor 2 Juli 2010
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.153 KB) | DOI: 10.17146/gnd.2010.13.2.50

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PENGARUH KANDUNGAN SULFUR TERHADAP KONSTANTE KISI KRISTAL CuIn (Sx,Se1-x)2. Telah dilakukanpreparasi paduan bahan semikonduktor CuIn (Sx,Se1-x)2 yang dapat digunakan sebagai bahan target (CISS) denganteknik Bridgman. Target paduan CuIn (Sx,Se1-x)2 dibuat dari bahan Cu, In, Se dan S. Penelitian ini bertujuan untukmengetahui pengaruh kanndungan sulfur terhadap konstante kisi kristal paduan CuIn (Sx,Se1-x)2. Karakterisasistruktur kristal dengan mengunakan XRD. Hasil karakterisasi menunjukkan bahwa struktur kristal CuIn (Sx,Se1-x)2dengan intensitas optimum terorientasi pada bidang (112), dengan sudut hamburan 2θ berturut-turut 26,90o, 27,27odan 27,64o untuk x = 0,2; 0,5 dan 0,8. Dari perhitungan nilai konstannte kisi kristal a dan c serta volume unit sel a 2cdari kristal CuIn(Sx,Se1-x)2 telah mengalami penurunan akibat pengaruh penambahan kandungan sulfur.Kata kunci : sulfur, paduan, bridgman, struktur kristal.
PEMBUATAN LAPISAN TIPIS SILIKON AMORF TERHIDROGENASI (a-Si:H) UNTUK BAHAN SEL SURYA Wirjoadi Wirjoadi; Sudjatmoko Sudjatmoko; Yunanto Yunanto; Bambang Siswanto; Sri Sulamdari
GANENDRA Majalah IPTEK Nuklir Volume 6 Nomor 1 Januari 2003
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.336 KB) | DOI: 10.17146/gnd.2003.6.1.201

Abstract

PEMBUATAN LAPISAN TIPIS SILIKON AMORF TERHIDROGENASI (a-Si:H) UNTUK BAHAN SEL SURYA. Telah dilakukan pembuatan lapisan tipis silikon amorf terhidrogenasi (a-Si:H) untuk bahan sel surya. Lapisan tipis silikon amorf telah diketahui dan dapat dibuat, akan tetapi bahan lapisan tipis tersebut tidak dapat dimanfaatkan sebagai piranti elektronik. Pengontrolan valensi semi konduktor telah membuka jalan untuk pemanfaatan bahan tersebut untuk piranti-piranti elektro-nik terutama untuk piranti lapisan tipis photovoltaic, karena piranti photovoltaic seperti sel surya membutuhkan luasan aktif yang sangat besar untuk pengumpulan energi surya. Dalam penelitian ini deposisi lapisan tipis silikon amorf terhidrogenasi (a-Si:H) dilakukan dengan metode sputtering pada beberapa variasi parameter, yaitu suhu substrat, tekanan gas dan lama waktu deposisi untuk mendapatkan sifat listrik, terutama nilai resistivitas lapisan optimum. Berdasarkan perhitungan dan analisa data pengukuran dengan probe empat titik, maka lapisan tipis silikon amorf diperoleh hasil nilai resistansi sebesar R = (1,68 ± 0,02) MΩ, nilai resistivitas ρ = (1,80 ± 0,05) Ωm dan nilai konduktivitas σ = (0,57 ± 0,02) Ω-1m-1, yang ini diperoleh pada kondisi suhu 300 oC, tekanan gas 7 x 10-2 torr, waktu deposisi 1,5 jam. Sedangkan hasil untuk lapisan tipis silikon amorf terhidrogenasi (a-Si:H) diperoleh nilai resistansi optimum sebesar R = 1349,66 MΩ, pada suhu 300 oC, tekanan gas 3,8 x 10-2 torr dan waktu deposisi 1,5 jam.
CORROSION RESISTANCE IMPROVEMENT OF AISI 316L STAINLESS STEEL USING NITROGEN ION IMPLANTATION Sudjatmoko .; Lely Susita R.M.; Wirjoadi .; Bambang Siswanto
GANENDRA Majalah IPTEK Nuklir Volume 16 Nomor 2 Juli 2013
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.114 KB) | DOI: 10.17146/gnd.2013.16.2.602

Abstract

The nitrogen ion implantation can be used to improve surface mechanical properties and corrosion resistance behavior of AISI 316L stainless steels by modifying the near-surface layers of these materials. In this study, an AISI 316L stainless steel plate was implanted with the optimum ion dose of 5  1016 ion/cm2 for ion energy variation of 60, 80 and 100 keV. Microhardness was measured by Vickers method, and the results of measurements clearly indicate an enhancement hardness behavior for nitrogen implanted layer. It is found that the implanted layer hardness was increased by a factor of 1.3 in comparison to that of the unimplanted samples. The increased hardness resulting from nitrogen ion implantation was attributed to the formation of an iron nitride phase. Microstructure, chemical composition and surface morphology studied using the technique of Scanning Electron Microscope (SEM) coupled with Energy Dispersive X-ray (EDX) and X-ray Diffraction (XRD). Analysis of SEM-EDX micrographs and XRD diffraction patterns indicate that the nitrogen implanted layer is composed of a metastable single phase which has properties very hard, good corrosion resistance behavior and wear resistance surface layers of stainless steel components. Effects of nitrogen ion implantation on the corrosion properties of AISI 316L stainless steels was evaluated using potentiostat PGS 201T. Corrosion properties of test results showed that there was a significant improvement in the corrosion resistance in the case of nitrogen implanted samples.
HUBUNGAN KEPEMIMPINAN TRANSFORMASIONAL DAN ORGANIZATIONAL CITIZENSHIP BEHAVIOR DENGAN KINERJA GURU SMA NEGERI DI KABUPATEN LOMBOK UTARA Bambang Siswanto
(JPAP) Jurnal Praktisi Administrasi Pendidikan Vol. 2 No. 1 (2017)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpap.v2i1.16

Abstract

PENGARUH PENGOLAHAN TANAH DAN PEMBERIAN BAHAN ORGANIK (BLOTONG DAN ABU KETEL) TERHADAP POROSITAS TANAH DAN PERTUMBUHAN TANAMAN TEBU PADA ULTISOL Carolina Eva Nita; Bambang Siswanto; Wani Hadi Utomo
Jurnal Tanah dan Sumberdaya Lahan Vol. 2 No. 1 (2015)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

The use of agricultural mechanization in the form of tractors and earth moving will have an impact on soil porosity, soil bulk density and soil's ability to store water. The purpose of this study was to determine the effect of soil tillage and organic matter (filter cake and boiler ash) on soil porosity and high growth of sugarcane (Saccharum officinarum L.). The experiment used a randomized block design with 5 treatments and 3 replications, K0 = Control (Plowing 2 times + Harrowing 1 time + Furrowing 1 time), K1 = (Plowing 2 times + Harrowing 1 time + Furrowing 1 time filter cake  40 t ha-1 and boiler ash 40 t ha-1 spread), K2 = (Plowing 1 time + Harrowing  1 times + Furrowing 1 times filter cake  40 t ha-1 and boiler ash 40 t ha-1 spread), K3 = (Sub soiling 2 times + Harrowing 1 times + Furrowing 1 time filter cake 40 t ha-1 and boiler ash 40 t ha-1 spread), K4 = (Sub soiling 2 times + Harrowing 1 time + Furrowing 1 time filter cake  40 t ha-1 and boiler ash 40 t ha-1 included in the bolt). Tillage Sub soiling 2 times + Harrowing 1 time + Furrowing 1 time filter cake 40 t ha-1 and boiler ash 40 t ha-1 included in the bolt (K4) was able to increase the porosity of the soil that was equal to 50.2% and increased the sugar cane plant height of 3 MST, 6 and 9 MST, respectively 11.62 cm, 17.35 cm and 34.59 cm
PENGARUH APLIKASI BAHAN ORGANIK PEMBENAH TANAH TERHADAP SIFAT KIMIA TANAH, PERTUMBUHAN DAN PRODUKSI TANAMAN TEBU DI KEBUN PERCOBAAN PABRIK GULA BONE, KABUPATEN BONE Kisman Topani; Bambang Siswanto; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 2 No. 1 (2015)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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Abstract

Coal is one of the fossil fuel non-oil that can be burned, from sedimentary, organic rock composed mainly of carbon, hydrogen and oxygen. However, the use of coal still produces waste that remains to be addressed, such as fly ash. In the sugar industry, also contained fly ash (boiler ash or Bagasse ash) generated using bagasse (bagasse) as fuel. The research objective: 1) know the capabilities of soil amendment application to the chemical soil properties; 2) Determine the effect of soil amendment application on sugarcane plant growth; 3) know the efficiency of soil amendment application on the production. This experiment used a randomized block design (RBD) with six treatments of P1 (Control), P2 (Control + Compost), P3 (Control + Compost + Boiler Ash), P4 (Control + Boiler Ash), P5 (Control + Boiler Ash without Potassium fertilizer), and P6 (Control + Boiler Ash without Dolomite application) with three replications. Then, the data were analyzed by analysis of variance followed by Duncan test 5%. The results of study showed that the treatment of soil amendment organic matter application with a combination treatment of inorganic fertilizers + compost 6 t ha-1 + boiler ash 40 t ha-1  (P3), was able to repair and improve the content of N, P, K, pH, organic C and soil CEC. The treatment of soil amendment organic matter application with a combination of inorganic fertilizer + compost 6 t ha-1 + boiler ash 40 t ha-1  (P3), was able to improve and enhance the growth of sugar cane plant height, number of tillers, and the diameter of the cane. The treatment of soil amendment organic matter application with a combination of inorganic fertilizer + compost 6 t ha-1 + boiler ash 40 t ha-1  (P3), was able to increase the yield of crop production and had the highest value
Co-Authors Agus Purwadi Carolina Eva Nita Fahriansyah Nur Afandi Kiromil Abror Kisman Topani Lely Susita Lely Susita R.M. Masahito Yoshikawa Novi Arfarita Rahmat Satriya Retno Suntari Shunya Yamamoto Sri Sulamdari Sudjatmoko . Sudjatmoko Sudjatmoko Suharni Suharni Suharno . Tjipto Sujitno Trimardji Atmono Wani Hadi Utomo Widdi Usada Wirjoadi . Wirjoadi Wirjoadi Yulia Nuraini Yunanto Yunanto