cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota malang,
Jawa timur
INDONESIA
Natural B
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
Anda dapat mengakses artikel-artikel hasil penelitian khususnya bidang lingkungan dan kesehatan. Untuk informasi lebih lanjut, silakan menghubungi redaksi jurnal.
Arjuna Subject : -
Articles 15 Documents
 1   2 
Search results for , issue "Vol 3, No 2 (2015)" : 15 Documents clear
Effect of Sintering Temperature on Percentage of Tetragonal And Rhombohedral On Comparison of Zr / Ti (60/40) Tamam Abimanyu; Rachmat Triandi; Masruroh Masruroh
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (688.367 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.3

Abstract

The synthesis of lead zirconate titanate (PZT) with ratio Zr:Ti of 60:40 have been conducted by sol gel method. The precursor of PZT were prepered from zirconium(IV) nitrate pentahydrate, titanium(IV) butoxide, lead(II) acetate trihydrate and 2-methoxyethanol and acetylaceton as a stabilizer solution. The PZT films deposited on Si substrate by spin coating method, then it was sintered at different temperature of 500°C, 600°C and 700°C. The crystal structure and composition of PZT films were observed by X-ray Diffraction (XRD) and Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). The XRD results show the crystal orientation of PZT (100), (101), (110), (111), (002)T, (200)R, (200)T, (201) and (210), means that all PZT films are polycrystalline. Moreover, the orientation of (110) as temperature sintered of 600°C show the highes intensity than other temperature. The EDX results show mole fraction of Zr and Ti decrease compound with iniatial precursor. On the other hand, the mole fraction of O increase, which result in the existence of ZrO2 and TiO2 crystal. 
Estimation of Reservoir Rock Formation and Hood Stone in Manifestation Area of Tulehu Salahutu Healer - Ambon Island Based on Magnetic Survey Jufri Jufri; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1762.556 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.9

Abstract

The magnetic survey has been done in the area of geothermal manifestations Tulehu, Salahutu, Central Maluku in Ambon Island which has high temperature reservoir. The aim of this research was to know the formations reservoir and cap rock in the area of geothermal manifestations Tulehu. The measurement of data is done using magnetometer PPM type G-856, in the area of around the hot springs Hatuasa Tulehu broadly of 1.78 km x 1.25 km, which consists of 238 measuring points with spacing 50 m. Data processing to begin with IGRF correction, diurnal correction, flat surface reduction, upward continuation and reduction to the pole. Interpretation was based on three cross - section models: slice AB, BC, and DE. The modeling of the results indicates the presence of caprock formations suspected as alluvial (Qa) with susceptibility contrast 0.0102 SI to 0.0416 SI, whereas the reservoir rocks formation is suspected rocks of volcanic Ambon (Tpav) had been around demagnetization with susceptibility contrast 0.0001 SI, in the deepness of 1850 m to 2775 m the surface below.
Ethnobotany and Food Plant Community Sambori District Bima Regency West Nusa Tenggara Indonesia Zulharman Zulharman; Bagyo Yanuwiadi; Jati Batoro
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.117 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.15

Abstract

The purpose of the study was to determine the local knowledge that is applied by the local people in Sambori village in the utilization of medicinal plants and food plants. The research was conducted in the Sambori village, District of Lambitu, Bima, West Nusa Tenggara, in January to February 2015. The method was employed through ethnographic description through interviews and literary study. The method to select the informants was using the snowball technique. The main characteristics of respondent are the public figure and Sambori traditional people of 30 people. Data analysis was analyzed of ethnographic descriptive analysis. The results showed that the number of plants used for the mediclinal purposes was 18 species of plants, which are dominated by species of Zingiberaceae family, with specific benefits for three types of fever treatment, 9 species for smallpox, and 9 species for kidney stones, and 9 species for slimming and maag. The utilization of plants for daily food consists of 8 species namely Oryza sativa, Oryza sp, Zea mays, Vigna Radiata, Manihot utilisima, Glycine max, Arachis hypogaea L dan Ipomoea batatas L. The material of food plants consists of three families, 38% was dominated by Poaceae family food plants, 37% of Fabaceae family and 25% of Convolvulaceae family. The food plants that utilized for vegetables material are 9 types species, namely Vigna sinensis, Momordica charantia, Sechium edule, Cucumis sativus, Phaseolus vulgaris, Solanum lycopersicum, Schleichera oleosa, Solanum melongena dan Capsicum frutescens L. The parts of the food plants as vegetables are leaves and fruits. 
Effect of Thickness on Thin Layer Resistance Value of Zinc Sulfophthalosianin (ZnPcSn) As Prototype of Ozone Detector Novitasari, Anggriana; Masruroh, Masruroh; Tjahjanto, Rachmat Triandi
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (798.901 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.4

Abstract

Thin film of ZnPcSn was developed as a prototype for ozone detector. This study aimed to investigate the relationship thickness of thin film of ZnPcSn along with resistance value toward ozone exposure. The ZnPcSn thin film was deposited on a printed circuit board (PCB) substrate with various thickness using vacuum evaporation technique. The morphology of the thin film was observed using scanning electron microscope (SEM). The SEM images of ZnPcSn thin film showed that thicker layer of thin film leaded to greater pore and uniform distributed layer. To obtain the resistance value, ZnPcSn thin film was exposed to ozone for 30 minutes continuously. Ozone was synthesized by ozonator from air. Thicker film with higher ZnPcSn content had more intensive interaction with ozone. Higher interaction with ozone leaded to the increasing value of generated current, indicated by the decreasing of the thin film resistance value. This result demonstrated  that the ZnPcSn thin film has promising potential as ozone detector. 
Correlation of Well and Seismic Log Data for Spreading Litology and Porosity Reservoir Hydrocarbon Formation Gumai Basin South Sumatera Timur Dikman; Adi Susilo; Said Sabbeq
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1286.737 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.10

Abstract

Integration of seismic data and well log is carried on the field X to identify the distribution of lithology and porosity in the reservoir target zone in this field. With the purpose to get a good interpretation of the subsurface in the process of hydrocarbon exploration. The integration of data is done by using acoustic impedance inversion analysis. Two types of acoustic impedance inversion method is applied to the well log data and seismic, i.e maximum likelihood sparse spike and a model-based inversion. Both of them have a high correlation coefficient and a low error rate. Sparse spike inversion result was selected to use in the next process as it has an acoustic impedance value that is more similar to the well log acoustic impedance value. Acoustic impedance models correlated with the lithological profiles of well log is used to predict the spread of reservoir lithology. Sparse spike inversion results are then used as input to the module EMERGE on Hampson Russell Suite 9 software, to predict the distribution of porosity from seismic volume. The volume of porosity is determined from regression function crossplot between acoustic impedance inversion results with fixed porosity well logs.  

Page 2 of 2 | Total Record : 15

 1   2 

Filter by Year

2015 2015


Reset
Filter By Issues
All Issue Vol 5, No 2 (2019) Vol 5, No 1 (2019) Vol 4, No 4 (2018) Vol 4, No 3 (2018) Vol 4, No 2 (2017) Vol 4, No 1 (2017) Vol 4, No 1 (2017) Vol 3, No 4 (2016) Vol 3, No 3 (2016) Vol 3, No 2 (2015) Vol 3, No 1 (2015) Vol 2, No 4 (2014) Vol 2, No 3 (2014) Vol 2, No 2 (2013) Vol 2, No 1 (2013) Vol 2, No 1 (2013) Vol 1, No 4 (2012) Vol 1, No 3 (2012) Vol 1, No 2 (2011) Vol 1, No 1 (2011) Vol 1, No 1 (2011) More Issue