Widyariset
Widyariset is a scientific journal which publishes the results of research and development, assessment and systematic thinking about science and technology. The writers of the scientific papers in this journal come from researchers/researcher candidates from various institutions' research and development (R&D), and universities. Widyariset is published regularly three times a year: in April for the issue of Social Sciences and Humanities (IPSK), in August for the issue of Natural Sciences (IPA) and in December for the issue of Engineering Sciences (IPT).
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<![CDATA[STUDI KOMPARATIF RESISTENSI ANTARA SAPI BALI DAN MADURA TERHADAP INFEKSI Fasciola gigantica ]]>
<![CDATA[Ening Wiedosari]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.7-13
<![CDATA[Designing of future approaches for the control of Fasciola gigantica infection in cattle requires an understanding of the host-parasite relationships. This study was therefore undertaken to compare the susceptibility to infection with F. gigantica between Bali and Madura cattle. Seven Bali and seven Madura cattle were infected orally with 15 metacercariae of F. gigantica twice weekly for 32 weeks. Similar observations were made on four Bali and 4 Madura cattle maintained fluke-free as controls. The study shows that there was a trend of a lower fluke burden and faecal egg counts Madura cattle than in Bali cattle. The packed cell volume (PCV) values was significantlyhigher in infected Madura than in Bali cattle (P<0,05). The increased of eosinophil cell response and the antibody isotypes imunoglobulin (Ig)G1 in Madura cattle were significantly higher than in Bali cattle (P<0,05). These varying responses represent differences in host-parasite relationships between Bali and Madura cattle and may be linked to the observed varying levels of resistance to F. gigantica infection between these host.]]>
<![CDATA[EVALUASI METODE PENAJAMAN CITRA MULTISPEKTRAL DENGAN MEMANFAATKAN KANAL PANKROMATIK ]]>
<![CDATA[- Dianovita]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.115-124
<![CDATA[This paper studied three methods of pan-sharpenning of SPOT-4 image and evaluated the quality of the results. Three pan-sharpenning methods were applied to a scene of SPOT-4 image of K/J:287/364 acquiried on 25 July 2008 by using image processing software. Those three methods were IHS-RGB, Color Normalized (Brovey), and PCA (Principle Component Analysis). For IHS-RGB and Color Normalized (Brovey) methods the formulas written in Kartasasmita were used. These formula are practical to be used in image processing software and canbe understood theoritically. Similarly for PCA (Principle Component Analysis) method on this research the values of the elements of eigenvectors, which are required for doing the transformation and inversion, are calculated before then they are used in a new more practical equation and can be inputted to image processing software. It was expected that three mathematic equations from those three methods can be implemented easily in other image processing softwares and used for other multispectral image sharpenning by panchromatic band. An assessment to test the pan-sharpenning processes quantitatively and qualitatively were conducted. A qualitative assessment had been conducted by visual interpretation of pansharpened image. Quantitative assessments of pan-sharpened image was showed by change of spectral value range of each spectral channel, measureof the slope detail of pansharpened image from several object detail and the spectral information similarity between original and pansharpened images by Q Index and Correlation Coefficient. The results of this study are practical equations for PCA, IHS-RGB and Color Normalized (Brovey) Methods; pan-sharpened of SPOT-4 image; and quality assessment of pan-sharpened of SPOT-4 image.]]>
<![CDATA[Efektivitas Inokulasi Rhizobium sp. terhadap Pertumbuhan dan Hasil Kedelai pada Tanah Jenuh Air ]]>
<![CDATA[- Jumrawati]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.47-55
<![CDATA[The effectiveness of Rhizobium sp. inoculation in several periodes of soil saturation on growth and yield of soybean were studied at green house experiment. This research was designed by using 2x6 faktorial treatment arranged in Completely Randomized Design (CRD) and two treatment i.e. without and with Rhizobium sp. inoculation. Ist factor was duration of soil saturation consisted of six treatments i.e. field capacity, water saturation for 5-10 days after planting (dap), 10-15 dap, 15-20 dap, 20-25 dap, and 25-30 dap. Several parameters including root nodule formation, activity of root nodul, growth and yield of soybean were observed. All data was analyzed by F-test and subjected to Duncan Multiple Range Test (DMRT) analysis at 5 % level when the treatments showing significantly variations. The result showed that Rhizobium sp. inoculation increased the amount of root nodule and activity of root nodule in fixing atmospheric nitrogen.]]>
<![CDATA[SYNTHESIS AND COMPARISON OF ADENINE, CYTOSINE, GUANINE RESINS FOR METALS COLLECTION ]]>
<![CDATA[Katarina, Rosi Ketrin]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[LIPI-Press ]]>
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<![CDATA[Beberapa resin baru yang menggunakan kitosan sebagai material dasar dengan adenine, cytosine, dan guanine sebagai pembentuk khelat telah dibuat untuk pemekatan runutan logam. Resin-resin tersebut yang ditempatkan di dalam mini kolom ternyata dapat menyerap ion perak secara selektif dan kuantitatif pada rentang pH yang lebar (pH 3-9). Dibandingkan dengan resin lainnya, guanine-type chitosan menunjukkan kemampuan yang terbaik untuk menyerap ion perak, bukan hanya dapat menyerap secara kuantitatif, tetapi juga dapat dengan mudah dielusihanya dengan menggunakan 5 mL 2 M HNO3. Akan tetapi, kapasitas penyerapan guanine-type chitosan adalah yang terendah dibandingkan dengan resin lainnya. Dengan demikian, guanine-type chitosan hanya dapat dipakai untuk pemekatan runutan ion perak dari sampel air alam.]]>
<![CDATA[PROSES ORGANIC ELECTROCOATING YANG RAMAH LINGKUNGAN ]]>
<![CDATA[Sri Mulyaningsih]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.93-98
<![CDATA[Organic electrocoating process is the plating process using organic material to be plate on the conductor materials. The process is almost the same with other electroplating process, but they have several benefits such asno hazardous content, the plating sequence more shorter than electroplating process, and is possible to depositeng clear or tinted polyurethane plating. The organic electrocoating steps consist of surface treatment which is immersing the sample to the alkaline soak cleaner solution than acid mild dipping, continue to deionised rinse, organicelectrocoating, deionised rinse, post dye, and curing. The result of the experiment shows that the optimal Organic electrocoating process is held at voltage 35–40 V to give the best surface layer.]]>
<![CDATA[EFEKTIVITAS METODE NONDESTRUKTIF NIR-JARINGAN SARAF TIRUAN DALAM MENENTUKAN KOMPOSISI KIMIA JAGUNG ]]>
<![CDATA[Harmi Andrianyta]]>;
<![CDATA[I Wayan Budiastra]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.15-21
<![CDATA[High maize production should be followed by good handling and preservation up to consumer. Near Infrared Reflectance (NIR) was nondestructive testing method, as well as high accuracy, free from pollution, and rapid method, therefore suggested as a testing method. The objective of this study was asses of NIR technology efectivity in determining four major compositions of maize. Fifty samples of maize (intact seeds) were scanned from 900-2000 nm NIR wavelength, interval 5 nm. Calibration model for NIR measurement using Artificial Neural Network (ANN) technique three layers. As input layer ANN are 5, 10, and 15 nodes principal component (PC), hidden layer 4,6, 8, 10, and 12 nodes and output layer are single chemical composition and simultaneously. Prediction of an external validation set showed low the SEP (standard error of prediction) and CV (coeficient of variability). As result, NIR technology is able to predict maize chemical composition accurately SEP ranged from 0.004-0.496, CVranged from 0.047–0.518. ANN with 5 nodes input layer and single output layer were very strong recommended to generate NIR calibration model.]]>
<![CDATA[STUDI RELASI HIDRODINAMIKA SUNGAI CIWALEN DAN AIR TANAH MELALUI PENDEKATAN MODEL (Studi Kasus pada Aliran Sungai Ciwalen Kecamatan Garut Kota) ]]>
<![CDATA[Asep Mulyono]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.75-81
<![CDATA[Ciwalen River flows pass of leather industry in Sukaregang area that is the one of the prominent industry in Garut region. The usage of chemicals in the leather tanning process resulted in toxic liquid waste released to Ciwalen River. Ciwalen River containing contaminants would further contaminate the groundwater system along the Ciwalen River. The study of groundwater flow particularly hydrodynamic relation river and groundwater surrounding is required. Field and secondary data were utilized in this study. Groundwater flow and hydrodynamic relation river and groundwater analyses were carried out using Visual Modflow v3.1. software. The study results that hydrodynamic relationship between Ciwalen River and the groundwater system can be divided into 6 segments. Segment 1, 4, and 6 belong to effluent type, while segment 2 is of influent type. Segment 3 and 5 located right of the river are effluent and those located in the left of the river are of influent type. River channel length of segment 1 are 0.95 km, length of segment 2 are 0.62 km, length of segment 3 are 0.88 km, length of segment 4 are 0.21 km, length of segment 5 are 0.63 km and length of segment 6 are 1.18 km. Influent type indicate causes a groundwater pollution because river that’s containing contaminants would further contaminate the roundwater system particularly at urban wells in surrounding segment.]]>
<![CDATA[PEREKAM/PEMUTAR SUARA DIGITAL BERKAPASITAS BESAR UNTUK APLIKASI EMBEDDED SYSTEM ]]>
<![CDATA[- Yoppy]]>;
<![CDATA[Waru Djuriatno]]>;
<![CDATA[- Suprapto]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.99-106
<![CDATA[In embedded-system designs that involve just a small capacity voice-recorder, one may use EEPROM or voice-recorder IC. However, sometimes one needs a high capacity voice recorder also. In this case, EEPROM can’tfulfill the needs anymore because it’s hard to get EEPROM with capacity even at 512 kbyte. Meanwhile, the ISD® voice-recorder IC could store voice up to 16 minutes only. For this background, the writer proposes a high-capacity digital voice recorder which is able to record voice for several hours. It uses SD Card as the storage media.. With sampling rate at 8 kHz/8 bit and 512 MB SD Card, the recorder can store voice until 18 hours. The recorded voices are stored in WAV file format so that can be transfered from and to PC when needed.]]>
<![CDATA[PENGARUH SUMBER KARBON DAN AERASI TERHADAP AKTIVITAS DENITRIFIKASI ISOLAT BAKTERI ASLT2 ]]>
<![CDATA[Lena Novita]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.57-62
<![CDATA[Nitrate is considered as a pollutant in freshwater or estuarine ecosystem which caused eutrofication. Bacteria can be used to reduce nitrate by denitrification process. The aim of this research was to find out the influence of carbon sources and aeration on denitrification of isolated ASLT2 bacteria. The sources of carbon were acetate, succinate, glucose and glycerol under aerob and anaerob conditions. The denitrification process was measuredat seventh day. Isolated ASLT2 bacteria was able to reduce nitrate aerobically and anaerobically in various of carbon sources. The highest activity of aerobic nitrate reduction was found by using acetate as carbon source and anaerobically was found by using succinate as carbon source.]]>
<![CDATA[PERAN BAMBU BETUNG (Dendrocalamus asper) PADA KUALITAS PENGELOLAAN LAHAN ]]>
<![CDATA[Rudi Hilmanto]]>
<![CDATA[ Widyariset Vol 13, No 2 (2010): Widyariset ]]>
Publisher : <![CDATA[Pusbindiklat - LIPI ]]>
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DOI: 10.14203/widyariset.13.2.2010.23-28
<![CDATA[Bamboo has contributed to economic potency and the increase of ecology, so bamboo is widely used by local and non-local community. Objectives of this research is to verify role of bamboo betung (Dendrocalamus Asper)at land quality using method Ring rudihilmanto, but in this research it is focussed only at land element influenced by bamboo betung especially at acidity (pH) and porosity. Method of Ring rudihilmanto constitute method of tree interaction and adaptation. This method depicts environmental elements which can be influenced by population a tree species of phase its growth and development at ecosystem, that is: land, temperature, water, and the other organism. Result obtained by that role of bamboo of betung at ecosystem use method of Ring rudihilmanto had ability 14,29% improve alkalis soil and 12,55% to improve soil porosity. Role of bamboo betung (Dendrocalamus Asper) at land quality repair was different significant at 0,01 level.]]>
