Browsing by Author "Sugianto"

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    ANALISA ARAH ANGIN TERHADAP CURAH HUJAN MENGGUNAKAN EQUATORIAL ATMOSPHERE RADAR (EAR) DAN OPTICAL RAIN GAUGE (ORG) DI ATAS KOTOTABANG SUMATERA BARAT
    (2016-02-04) Sinurat, Nurmita; Sugianto; Harjupa, Wendi
    A research on effect of wind direction to rainfall in Kototabang West Sumatera has been done by analysing the second data of daily data. The data were collected by Equatorial Atmosphere Radar (EAR) and Optical Rain Gauge (ORG) for one year (May 2014- April 2015) which were base on the results of study. It was found that the highest rainfall occurred in Agust 2014, namely 4,94 mm/day with different wind directions and speed with meridional wind +0,57 m/s, vertical wind -0,02 m/s, and zonal wind -2,56 m/s. The value of rainfall was categorised high which represented rainy season. It was supposed to be the dry season but in reality it was different because in the area of research occurred rotation of the wind direction with high air temperatures resulting in high evaporation that can cause high raifall. In July 2014 it was obtained the lowest rainfall of 0,7 mm/day with the wind direction and speed were different, namely meridional wind -0,4 m/s, vertical wind +0,02 m/s, zonal wind +3,71 m/s. Patterns of rainfall in July 2014 showed an increase in the dry season, where high zonal wind speed/strong destroyed the formation of convective clouds or rain-forming cloud that caused low rainfall. Kototabang is an area that almost every month of rain, that cause rain occured this is because the area of Kototabang is on the equator and is sourrounded by wide sea, so that in that area, high evaporation always occures.
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    ANALISA KINERJA PENYERAPAN LOGAM BERAT MENGGUNAKAN KARBON AKTIF PADA SUMUR BOR DAN SUMUR GALIAN DI KOTA DUMAI
    (2016-02-01) Amelia, Elsa; Taer, Erman; Sugianto
    Manufacturing and testing of magnetic carbon of rubber wood sawdust mixture and for heavy metal absorption of iron in water samples Drilling, Well Water Excavation in Dumai, has been investigated the magnetic carbon begins with a pre-carbonization process at a temperature of 280oC in a vacuum. Milling and sieving process to obtain the carbon particle size is less than 38 μm, the increment in the surface area of the carbon is done by using a chemical activation with potassium hydroxide (KOH), the activator weight ratio of KOH and carbon powder was 4: 1. The carbon is then neutralized by using distilled water and a solution of chloride acide (HCl) repeated until the pH of the washing water became neutral. Furthermore,the activated carbon powder mixed uses powder with a ratio of 5: 4. Mixture is done by using a mortar and proceeded with the process ball milling for 2 hours. Finally, a mixture of carbon powder and is carbonized at 850 °C at N2 gas and then followed by washing and drying to produce a magnetic carbon . The testing of Fe ion absorption from water sample, Water Well Drilling Excavation and filtered in Dumai is done every 2 hours. The results at atomic absorption spectroscopy showed that the increment of absorption after 2 hours has water absorption percentage of 97.94% Drilling, Well Water Excavation amounted of 83.58 % Minerals and Water Drilling filtered by 56.18% with the use of magnetic . Testing X-ray diffraction showed peaks Fe 2θ = 36o angle and Scanning Electron Microscopy shows the particle size is similar to irregular shapes and whitish. Dispersive energy X-rays have shown the presence of Fe in the magnetic carbon absorbent material of rubber wood sawdust.
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    Analisa Siklis Voltametri Superkapasitor Menggunakan Elektroda Karbon Aktif Dari Kayu Karet Berdasarkan Variasi Aktivator Koh
    (2015-12-28) Taer, Erman; Zulkifli; Sugianto; Syech, Riad; Taslim, R
    Telah berhasil dianalisa elektroda karbon superkapasitor dari kayu karet menggunakan metode siklis voltametri. Pembuatan sampel tahap awal melalui proses pemotongan, pengeringan, karbonisasi dan pemolesan membentuk pelet. Variasi aktivator KOH dan HNO3 digunakan untuk meningkatkan luas permukaan elektroda. Variasi KOH yang digunakan adalah 1 M, 3 M, 5 M sedangkan larutan HNO3 yang digunakan adalah sebesar 25%. Metode pengukuran siklik voltametri dilakukan menggunakan alat Solatron 1280 dengan jendela potensial dari 0 sd 1 Volt pada variasi laju imbasan 1 mV/s, 5 mVs, 10 mV/s, 30 mV/s, 50 mV/s dan 100 mV/s. Dari hasil penelitian yang telah dilakukan didapatkan nilai kapasitansi spesifik tertinggi terjadi pada laju imbasan 1 mV/s untuk semua variasi KOH. Nilai kapasitansi spesifik tertinggi pada laju imbasan 1 mV/s pada variasi KOH 1 M, 3 M, 5 M adalah sebesar 16,36 F/gram, 68,27 F/gram dan 63,24 F/gram. Pengujian tambahan juga dilakukan menggunakan alat difraksi sinar-X dan mikrosop pemindai elektron
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    ANALISIS PERBEDAAN BAHAN AKTIVATOR DALAM PEMBUATAN ELEKTRODA SUPERKAPASITOR DARI ARANG TEMPURUNG KELAPA
    (2016-05-19) Susanti, Febri; Taer, Erman; Sugianto
    Supercapacitor electrodes from coconut shell have been produced using the experimental method with variation activating agent of: (A) ZnCl2, (B) KOH, (C) carbon ZnCl2 + KOH (s) and (D) carbon KOH + ZnCl2 (s). Surface area of carbon coconut shell was tested using a N2 gas absorption desorption method for all samples A, B, C and D 4.964 m2/g, 7.958 m2/g, 2.746 m2/g and 11.103 m2/g respectively. Specific capacitance was determined using the Cyclic Voltametry (CV) method for each samples and obtained the value of specific capacitance and yielded 7.32 F/g, 0.2117 F/g, 7.52 F/g and 0.314 F/g. Micrograph SEM data showed that the carbon of electrode produced has an irregular shape of particles. These results proved that the multi step chemical activation could increas the surface area and the specific capacitance of electrode carbon from coconut shell.
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    APLIKASI EKSTRAKSI ANTOSIANIN UBI JALAR UNGU DENGAN VARIASI PH PELARUT SEBAGAI DYE DALAM SEL SURYA PEWARNA TERSENSITISASI
    (2016-02-01) Kurniawan, Novriadi; Sugianto; Salomo
    Has been conducted a research of extraction anthocyanins from purple-fleshed sweet potatoes used as dye of Dye-Sensitized Solar Cells (DSSC) by using experimental method. This research was peformed to analyze the effect of degree of acidified solvents to DSSC performances. The Anthocyanin was obtained from purple-fleshed sweet potatoes from Pekanbarus’s traditional market. The extraction was carried out using 70% methanol and 7% acetic acid as the solvents. DSSC was built by arranging a sandwich structure,which are the active material of TiO2 wich has been immersed in dye for 24 ours, the electrolit wich has been made from KI and Iodine, the catalys wich has been made from pencil and candle. The Peformance of DSSC was measured by using a halogen lamp 50 Watt as a light source. The highest DSSC performance occurred at pH of 2,5 with the maximum current was 3,9 μA and the maximum voltage was 461 mV and the efficiency was 0,4149%, compared to the other solar cells wich have been made with different degree of acidified solvents, 0,0518% for dye with solvent at pH of 3, 0,0191% for dye with solvent at of pH 3,5, and 0% for dye with solvent pH of 4.
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    Desalinasi Air Laut Menggunakan Energi Surya Dengan Mengaplikasikan Prinsip Multi Efek Pada Proses Penguapan/Pengembun
    (2015-03-07) Sugianto
    Dibuat alat desalinasi air laut menggunakan energi surya dengan mengaplikasikan prinsip multi efek pada proses penguapan dan pengembunannya. Pada prinsip multi efek. kalor yang dilepaskan pada proses pengembunan pada satu sisi bidang akan digunakan lagi untuk menguapkan air asin pada sisi lain dibidang yang sama, sehingga penggunaan kalor dilakukan dengan lebih efisien. Model desalinasi yang dibuat menggunakan bidang penguapan/ pengembunan sebanyak 10, 15, 20, 25 dan 30 bidang. Pertambahan jumlah bidang penguapan/ pengembun akan meningkatkan jumlah air bersih. Untuk jumlah bidang penguapan/ pengembunan yang cukup banyak, 25 bidang dengan air bersih yang dihasilkan 2.24 kg, pertambahan jumlah bidang penguapan/ pengembunan tidak lagi menambah jumlah air bersih yang dihasilkan secara signifikan. Efisiensi maksimum alat desalinasi terjadi pada jumlah bidang penguapan/ pengembun sebanyak 25 bidang yaitu 31.82 %.
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    EGGS SHELL MEMBRANE AS NATURAL SEPARATOR FOR SUPERCAPACITOR APPLICATIONS
    (2014-07-02) Taer, Erman; Sugianto; Iwantono; Dahlan, D; Deraman, M
    Various eggs shell membranes (ESMs) have been used as a separator for supercapacitor application. The separator was prepared from different membranes such as chicken eggs shell membrane (CESM), duck eggs shell membrane (DESM) and goose eggs shell membrane (GESM). The ESMs were tested as a separator in a two-electrode system, the sandwich-type supercapacitor cell consists of two activated carbon monoliths as electrodes, two stainless steel as current collectors and 1 M H2SO4 solution as an electrolyte. The electrochemical performance of the ESMs was characterized by an electrochemical impedance spectroscopy, a cyclic voltammetry and a galvanostatic charge-discharge. The results of this study exhibit all of the ESMs as a good candidate for supercapacitor separator. However, the CESM was shown excellence electrochemical properties, such as low resistance, high energy density and power density. The scanning electron microscope (SEM) micrograph and X-ray diffraction analysis were also proved that the ESMs are a promising low-cost separator for supercapacitor application
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    ELASTISITAS LOGAM TIMBAL (Pb) PADA TANAH DI SEKITAR SUMUR WARGA DI DESA SEBANGAR KECAMATAN MANDAU KABUPATEN BENGKALIS
    (2013-06-13) Fitrillisia, Githa; Emrinaldi, Tengku; Sugianto
    The existence of mineral components or heavy metals affect the basic properties of soil in term of toxic compound having function of consisting density, shear strength, water content, and elasticity. Plumbum (Pb), a heavy metal is one of inorganic materials that is abundantly contained in soil. This paper aims to determine the elasticity of Pb metal in the ground the area oil, soil type, and water content in Sebangar village Sub - district Mandau district Bengkalis. Soil samples were taken at two wells with a distance 50 m and 100 m approximately from the pumping petroleum, and two points which embeded measurament is set with a distance of 5 m and 10 m from each well and the depth of 50 cm, respectively. Soil samples printed cylindrical shape with a diameter of 5 cm and a length of 10 cm. The Elasticity can be determined by measuring the propagation time of the primary and secondary waves that propagate on land using Sonic Wave Analyzer (SOWAN) while consentration of Pb was determined using a Atomic Absorpance Spectrometer (AAS) Shimadzu AA-7000. The results show that the greater consentration of Pb has the greater the elasticity is obtained. The consentration of Pb and the elasticity in wells I and II is 5 m from the well, well I has Pb 0,7410 ppm and elasticity 8,1119x107 N/m2 for 10 m Pb 0,6777 ppm and elasticity is 6,2902x107 N/m2. Well II at 5 m has consentration of Pb 0,7501 ppm and elasticity is 4,6815x107 N/m2 for 10 m Pb 0,7151 ppm and elasticity is 4,4393x107 N/m2. According to Ministry of State for Population and Enviromental of Indonesia and Dalhousie University Canada the critical limit of Pb in the soil, the clay in village Sebangar Subdistric Mandau distric Bengkalis under the limits <100 ppm has been found.
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    INVESTIGASI AKUIFER DISEKITAR DAS (DAERAH ALIRAN SUNGAI) SIAK DI PEKANBARU MENGGUNAKAN METODE RESISTIVITAS KONFIGURASI WENNER DAN KONFIGURASI SCHLUMBERGER
    (2013-06-13) Fiizumi, Nurun; Syech, Riad; Sugianto
    A Research has been done to determine the aquifer and structure of lithology subsurface at Siak Bridge1, 2, and 3 Pekanbaru by using a geoelectric method in Wenner and Schlumberger electrode configurations. The current and voltage were obtained by using geoelectric equipment. These data were processed by excell to acquire the apparent resistivity. The software of Res2Dinv 3.56 and VES were used to analyze the data, which yield the real resistivity of rock and subsurface of lithology. The interpretations of Res2Dinv 3.56 and VES show that the lithology of Siak Bridge 1, 2, and 3 Pekanbaru consists of clay, sand, sand gravel, and hard core such as granite and limestone. The compressed aquifer was identified in Siak Bridge 1 and 3 where as Siak Bridge 2 was identified as free aquifer. The depth of aqiufer obtained by using Res2Dinv and VES differs each other in only 4 meters.
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    KARAKTERISASI SIFAT FISIS TANAH SAWAH KECAMATAN RIMBA MELINTANG MENGGUNAKAN GELOMBANG ULTRASONIK
    (2013-07-11) Kurniawan, S.; Edisar, M.; Sugianto
    The determination of the physical properties of paddy soil is reported in rice field Subdistrict of Rimba Melintang District of Rokan Hilir using an experimental method with a Sowan ( Sonic Wave Analyzer ). Samples are taken from the five villages of the location fields in the Subdistrict of Rimba Melintang i.e Mukti Jaya, Lenggadai Hilir, Lenggadai Hulu, Teluk Pulau Hulu and Teluk Pulau Hilir. The samples were made of cylindrical form with a length of 10 cm and a diameter of 7.4 cm. The results shows that samples with high elasticity are found in the village of Lenggadai Hilir which have elasticity of 49.89x107N/m2 with poisson ratio of 0.28, moisture content of 14.28% and pH 5.86. Whereas samples with low elasticity are found in the village of Mukti Jaya have elasticity of 25.87x107N/m2 with poisson ratio of 0.22, moisture content of 25.71% and pH 6.49. The results of this research also show that the samples of the rice field soil have a small elasticity and a small value of poisson ratio. It also has a high value of moisture content and pH. Whereas the samples of the soil rice field which have a high elasticity have a high of poisson ratio and both value of water content and pH are small. A small value of elasticity and the poisson ratio of the sample are found in a village Mukti Jaya describe that the better soil fertility levels are supported by a high value of moisture content and pH as well.
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    KELIMPAHAN DAN BIOMASSA CACING TANAH PADA LAHAN RUANG TERBUKA HIJAU (RTH) DALAM KAMPUS UNIVERSITAS RIAU, PEKANBARU
    (2014-03-28) Sugianto; Muhammad, Ahmad; Windarti
    The campus of Riau University is one of the most important green open spaces (“RTH”) in Pekanbaru. There are four different cover vegetation types in the campus:grass, shrub, single tree and trees. The purposes of this study were to examine the effect of different cover vegetation types on earthworm abundance and biomass and to analyze how underground factors influenced earthworm abundance and biomass in green open space. This study had been conducted from March-June 2013 within the campus of Riau University. Earthworm sampling was taken in 20 randomly-selected plots under each type of cover vegetation using a steel frame measuring 25 cm x 25 cm x 15 cm to a depth of 30 cm below the soil surface. The earthworms were counted and weighed alive. Environmental conditions in each plot were characterized by measuring soil temperature, soil water content, soil bulk density, root biomass, soil pH and soil texture. Results showed that cover vegetation type significantly influenced earthworms abundance and biomass (P<0.05). Earthworms were most abundant and had the largest biomass under trees (141.65 individuals/m2 and 40.99 g/m2). They were least abundant under shrub (75.20 individuals/m2) and had the smallest biomass under grass (12.83 g/m2). Results of principal component analysis (PCA) showed that soil pH gave the strongest influence on earthworm abundance and biomass compared to other underground factors under consideration in the campus of Riau University.
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    KLASIFIKASI MUTU BATU BATA BAKAR YANG DIPRODUKSI DI KOTA PEKANBARU BERDASARKAN PENGUJIAN KUAT TEKAN
    (2013-03-05) Sofyanto; Juandi; Sugianto
    The investigation of brick compressive strength has been done for 60 samples. Tests was carried out by the experimental method using a compressive strength testing machine (Compression Machine). The highest compressive strength for pressed brick from Tenayanraya was 0.86×107 N/m2 that fulfills grade 50 and the highest compressive strength brick for conventional brick is 1.128×10 7 N/m2 fulfill grade 100. The bricks that made in Rumbai has the highest compressive strength, that is 1.484×107 N/m2 which fulfill grade 100. The compressive strength of the conventional brick was 1.592×107 N/m2 which fulfill grade 150. Based on the results of testing, the entire samples produced from Tenayanraya and Rumbai agrees the Indonesian National Standard (SNI) SK-SNI-S-04-1989-F. The difference in compressive strength is not too large for Tenayanraya difference is 0.268×107 N/m2 and for Rumbai difference is 0.108×10 7 N/m2. The difference in brick compressive strength attributed to the differences in the processing of raw clay (clay) and the difference in location of the position of bricks during the combustion process
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    KONSENTRASI PARTICULATE MATTER DAN FAKTOR YANG MEMPENGARUHI KEADAAN UDARA DI KOTA MADYA PEKANBARU MENGGUNAKAN AMBIENT DUST ANALYZER
    (2013-07-13) Assabraini; Sugianto; Syech, Riad
    Research on the effects of solar intensity, temperature and air humidity to the particulate matter concentration (PM10) has been done by using data interpretation method. Measurements of PM10 concentration were performed by using an ambient dust analyzer FH62-1 series at three monitoring stations in Pekanbaru, namely Kulim Station, Sukajadi Station and Tampan Station. The observed data is daily data from 2011 to 2012, which were processed and analyzed to be monthly average data. Results of data analysis showed that the average PM10 concentration in 2011 was 44.10±17.56 μg/m3, the maximum PM10 concentration were 71.33 μg/m3 in November 2011, while the minimum PM10 concentration occurred in August 2011 at 16.68 μg/m3. The average PM10 concentration in 2012 was 32.54±16.55 μg/m3, with the maximum value reached in November 2012 at 60.50 μg/m3, and the minimum value was 14.32 μg/m3 which occurred in June 2012. PM10 concentration is low when the sunlight intensity and air temperature reach the maximum value, while the value of air humidity is the lowest. PM10 concentration is high when the sunlight intensity and air temperature are low, while air humidity has high value. The trend of PM10 concentrations in atmosphere Pekanbaru 2011 and 2012 is decreased, both for maximum and minimum values. PM10 concentrations were categorized as medium, according to the standard index of air pollution, which is issued by Indonesian Ministry of Environment.
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    MENENTUKAN AKUIFER LAPISAN AIR TANAH DENGAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER DI PERUMAHAN GRIYO PUSPITO DAN BUMI TAMPAN LESTARI
    (2013-03-05) Parhusip, Mando; Syech, Riad; Sugianto
    A research to investigate ground water layer by Geoelistrical method in schlumberger configuration has been done at Regency of Griyo Puspito and Bumi Tampan Lestari, Tampan Districs, Pekanbaru. A resistivitimeter model – 2115A. Has been used to measure voltgsand currens of the layer. Results of measurement and calculation, it was found that there are 4 layers at from each of the research locations. The results obtained in Regency of Griyo Puspito are mentioned as follows, the resistivity and thickness of the first layer are 95.8 Ωm and 9 meters respectively, the second layer 147.8 Ωm in resisitivity and 22.9 meters thickness. This second layer is interpreted as sand clay are which contains brackish water. The resistivity and thickness of this third layer are in range of 294.1 Ωm to 298 Ωm and 36.4 to 62.4 meters. This third layer contains sandstone and aquifer. The fourth layer has resistivity less than 5000 Ωm , which is enough impermeable of water. Mean while the results of Regency of Bumi Tampan Lestari are follows, the resistivity and thickness of the first layer are range 93.0 Ωm to 97.1 Ωm and 7.6 meters to 12.2 meters respectively, the second layer are in range of 100 Ωm to 132.4 Ωm and 21.1 meters to 34.6 meters this to second layer interpreted as sandclay , which contain brackish water . The third layer has resistivity in range of 176.3 Ωm to 261.1 Ωm and thickness in range of 14.2 meters to 50 meters, which contain sandstone and aquifer. The resisitivity of the fourth layer is 4941.1 Ωm to 4974.4 Ωm, this layer interpreted as clay enough impermeable for water which has no aquifer
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    MENENTUKAN POLA PENYEBARAN LOGAM BERAT (Cu, Fe, Zn) DI SUNGAI SIAK DENGAN MENGGUNAKAN SPEKTROFOTOMETER (AAS)
    (2013-03-05) Salam, Abdul Haris; Sugianto; Emrinaldi, Tengku
    A study concerning the determination of the distribution patterns of heavy metals (Cu, Fe, Zn) in Siak River has been done using a spectrophotometer (AAS). This research used an experimental method that is focused on the study of the pattern of spread of heavy metals Cu, Fe and Zn. The process was started by taking samples at 5 locations, then filtered with Whatman 40 Filter 0,45 μm and added HNO3 to dissolve the metals contained in the water sample, further analysis was undertaken using spectrophotometer (AAS) to determine the absorbance of each metals in water sample and standard solutions. Based on the data of standard solutions. Regression curves can be set up to determine the concentration of each metal. Results of water sample analysis showed that the concentration respectively of Cu, Fe and Zn was 0,0147 ppm, 0,0239 ppm and 1,9854 ppm. Based on water quality standards released by Unit Pelaksana Teknik Pengujian Dinas Pekerjaan Umum Provinsi Riau, the concentration of Cu and Zn contained in the Siak river water samples are safe for consumption for the maximum allowable limit, there are 0,02 ppm for Cu and 0,05 ppm for Zn. Another case with the Fe concentrations, that exceeds the maximum allowable concentrations for drinking in the amount of 1,9854 ppm from 0,3 ppm. After assessment, the safety distance to use the water of Siak River is more than 24,5 meters from the source of the waste
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    Pcngembangan Sistem Penjepit Cahaya (Optical Tweezers) Sebagai Alat untuk Pemerangkapan dan Pengaturan Partikel
    (2013-02-18) Minarni; Rahmad, Muhammad; Sugianto
    Optical Tweezers (OT) adalah sebuah sistem optik digunakan untuk pemerangkapan dan pengaturan partikel. Diperkenalkan pada tahun 1986, saat ini penelitian OT berkembang pesat dan mempunyai aplikasi pada berbagai bidang iimu. Partikel - partikel yang diperangkap bervariasi baik benipa atom, molekul, bakteri, dan DNA. Secara sederhana sebuah OT dibangun dengan sebuah berkas cahaya laser yang difokuskan ke sekumpulan partikel yang indek biasnya lebih besar dari indek bias medium sekelilingnya, laser yang digunakan mempunyai panjang gelombang disesuaikan dengan ukuran dan jenis partikel yang diperangkap. Pada penelitian ini, sebuah sistem Optical Tweezers dibangun mengunakan Laser Dioda 50 mW dengan Panjang Gelombang 830 nm. Partikel yang diperangkap adalah partikel Polystyrene berukuran 3 |j,m dan 10 (im. Lensa objektif lOOx, NA 1.25 merk Edmund Optics digunakan untuk memfokuska cahaya laser ke kaca preparat yang berisi partikel. Mikroskop optikal merk Leybold dimodifikasi dan dibuat menjadi digital mengunakan Kamera CMOS Thorlabs dengan Lensa 35 mm. Pencitraan partikel dan fokus laser pada kaca preparat sangat baik. Pada sistem ini, karena fluktuasi arus dan suhu ruangan yang tidak stabil menyebabkan daya laser sebelum menuju lensa objektif hanya sebesar 23 mW. Partikel 3 iim dapat terperangkap dengan baik sementara partikel 10 fxm membutuhkan daya laser yang lebih besar. Partikel-partikel yang tidak sepenuhnya mengalir atau terapung di dalam kaca preparat dan penampang berkas yang tidak sepenuhnya bulat menyebabkan Perangkap Optical tweezer yang tidak simetri sehingga gaya tarik pada partikel tidak begitu kuat.
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    PEMBUATAN DAN KARAKTERISASI FILM TIPIS BARIUM STRONTIUM TITANAT Ba0,7Sr0,3TiO3 (BST) MENGGUNAKAN SPEKTROSKOPI IMPEDANSI
    (2016-05-23) Syamda, Ridha Putri; Dewi, Rahmi; Sugianto
    The thin film of Barium Strontium Titanate (BST) has been studied with composition of by using sol-gel method that annealed in temperature of 600o and 650o. The thin film of BST is characterized by using Field Emission Scanning Electron Microscopy (FESEM) and an impedance spectroscopy. The result samples in temperature of 600o and 650o are 46 nm and 141 nm in thickness respectively. The result obtained from the impedance spectroscopy characterization are frequency, real impedance, and imaginer impedance. The capacitance of the thin film of BST in temperature of 600o and 650o are 0,15 Farad dan 0,154 Farad. The dielectric constant of the thin film of BST in temperature of 600o and 650o are 321,86 dan 109,32 respectively.
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    Pembuatan Dan Karakterisasi Sifat Fisika Green Carbon Paper Tanpa Perekat Menggunakan Limbah Biomassa
    (2015-12-28) Taer, Erman; Sugianto; Taslim, R
    Pembuatan dan karakterisasi green carbon paper (GCP) tanpa perekat menggunakan limbah biomassa telah berhasil dibuat. GCP dibuat dengan mennggunakan bahan biomassa dari kulit pisang. Proses pembuatan GCP diawali dengan proses pengilingingan dengan waktu yaitu 5 dan 15 menit. Setelah pengilingan dilanjutkkan dengan pencetakan menggunakan wadah dengan luas masing-masing 18 cm x 8 cm, 12 cm x 8 cm dan 9 cm x7 cm. Proses selanjutnya diikuti dengan proses pengeringan pada suhu 140o C selama 24 jam. Karakterisasi sifat fisika yang dilakukan pada sampel GCP yaitu Scanning electron microscopy (SEM) untuk mengetahui topologi dan morfologi permukaan, energi dispersif sinar-X (EDX) untuk mengetahui kandungan unsur, dan difraksi sinar-X untuk mengetahui sifat kristaliniti. Pengukuran berat, tebal dan luas sampel GCP juga dilakukan untuk menghitung nilai densitas. Berdasarkan pengukuran yang telah dilakukan densitas GCP untuk waktu penggilingan 5 menit dan 15 menit masing-masing adalah 0,825 g/cm3 dan 0,698 g/cm3. Karakterisasi XRD menunjukkan GCP bersifat amorf ditandai dengan kehadiran puncak karbon pada sudut 2θ = 23,936o dan 48,939o. Berdasarkan pengukuran SEM ditunjukkan bahwa partikel-partikel bahan penyusun GCP dalam bentuk bergumpal-gumpal
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    PENENTUAN KADAR Al, Fe, DAN Mg SERTA HUBUNGANNYA DENGAN SIFAT ELASTISITAS PADA BATUAN GRANIT DARI KABUPATEN KARIMUN
    (2013-07-23) Ismarliana; Edisar, Muhammad; Sugianto
    A reaseach has been done to determine amount of Al, Fe, and Mg in granite rocks from Karimun Regency. Their amount of Al, Fe, and Mg was then related to their elasticity properties. The sample of granite rocks was taken from 21 m and 35 m in depth of the rock layer. Content of Al, Fe, and Mg was determinated using a Atomic Absorption Spektrofotometer (AAS) and their elasticity was determinated using a Sonic Wave Analyzer. 5 samples were taken from both depths of 21 m and 35 m, respectivily. The samples were made in cylinder form with a 8 cm length and 5 cm diameter. The elasticity properties of granite rocks were determined from measurement of a primer velocity and a secondary velocity of wave. Results of the reseach showed that the elasticity of the 21 m samples was 28,77 x 109 N/m2, whereas the amount of Al, Fe, and Mg was 23,250 ppm, 6,122 ppm, and 17,917 ppm respectively. Meanwhile, the elasticity of the 35 m samples was 40,32 x 109 N/m2 and content of Al, Fe, and Mg was 19,125 ppm, 5,361 ppm, dan 16,667 ppm respectively. Bigger elasticity and sligltly lower of Al, Fe, and Mg content of the 35 m samples compared to their 21 samples was due to lower porocity on deeper granite rocks.
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    PENENTUAN KUALITAS BATU BATA MERAH BERDASARKAN KONDUKTIVITAS TERMAL
    (2014-04-14) Utari, Rika; Sugianto; Taer, Erman
    A compressive strength testing (  ) and thermal conductivity testing (k) have been performed on red bricks from the district of Tenayan Raya and Rumbai. This research using a compression machine, iron, solder, thermometer, styrofoam and its purpose was to prove the theory of the thermal conductivity having relationship to compressive strength. The result showed that the highest compressive strength due to the conventional red brick of Rumbai district is 10.82 x 10 5 N/m 2 and the lowest compressive strength due to the press red brick of Tenayan Raya district is 3.67 x 10 5 N/m 2 . The research results of thermal conductivity showed that the thermal conductivity value of the best sample of conventional red brick of Rumbai district is 1.05 J/sm  C and the thermal conductivity value of the lowest sample of press red brick of Tenayan Raya district is 0.857 J/sm  C . The affecting factor of the quality of red bricks is density. The density of conventional red bricks of Rumbai district for compressive strength and thermal conductivity, are 2486.880 Kg/m 3 and 2200 Kg/m 3 , respectively. Meanwhile average density of press red brick of Tenayan Raya district for compressive strength and thermal conductivity are 1696 Kg/m 3 and 2000.5 Kg/m 3 , respectively. Based on the result there was in relationship between compressive strength and thermal conductivity which was discribed by the regression equation Y  2 x 10  7 X  0 . 812