Jurnal Online Universitas Terbuka
Not a member yet
2167 research outputs found
Sort by
Solusi Persamaan SchröDinger Osilator Harmonik Dalam Ruang Momentum
Get PDFThe solution of Schrödinger equation for the simple harmonic oscillator has been investigated and explored. The solutions are coordinate representation or momentum representation. The eigen energy is . The expectation value is respectively. Both Method will produce similar result
PRODUKSI UMBI MINI (G0) KENTANG DARI STEK MINI DALAM RUMAH KETAT SERANGGA
Get PDFThe purpose of the research is to apply the cultivation technology in mini tuber (G0) and to investigate the phenotypic performances quantitative of three potato clones A5, PAS3063 and PAS3064 which were resistant from bacterial wilt disease (Ralstonia solanacearum). The commercial potato varieties (Granola and Atlantic) were used as comparison varieties. All clones (A5, PAS3063 and PAS3064), and two other varieties (Granola and Atlantic) wereconsistently resistant from bacterial wilt disease. The vegetative and the production variables of the tested clones were significantly different from those two commercial potato varieties. A5 and PAS3064 clones showed better vegetative and production characteristic than two commercial potato varieties. PAS3064 clone showed better performance compared with Atlantic variety, but it was almost similar compare with Granola variety
REHABILITASI TANAH SAWAH TERCEMAR LOGAM BERAT Pb DAN Cd MELALUI FITOREMEDIASI
Get PDFIt is indicated that rice field soil and plants on Rancaekek Bandung is containing heavy metal elements. This research aims to find out rehabilitation method for rice field soil by phytoremediation. Experiment was conducted in greenhouse. Vegetation used for this research were eceng gondok, mendong, akar wangi and haramay. The vegetation treatment was conducted under greenhouse experiments using Complete Randomized Design (CRD). Result showed that the use of vegetation had reduced the volume of Pb and Cd in the soil. Heavy metals are also contained within the roots and the leaves of the indicator plants. Mendong contained the highest concentration of Pb accumulated in its root, while akar wangi was indicated as contained Cd in its roots. Eceng gondok was indicated as containing the highest consentration of Pb and Cd accumulated in its leave
Tingkat Efisiensi Metode Regresi Robust Dalam Menaksir Koefisien Garis Regresi Jika Ragam Galat Tidak Homogen
Get PDFThis paper aims to compare the relative efficiency of weighted least square (WLS), ordinary least square (OLS) and robust regression method in regression coefficient estimation when the error term is not homogen.
The assumption of homegeneous error variance underlying the ordinary least square (OLS) is very important to get the best linear unbiased estimation of the regression coefficients. The investigation compares the methods in calculating efficiency of booth simulation and experimental data.
In conclusion, the WLS method is relatively more efficient than OLS and Robust Regression methods
Penentuan Ukuran Sumur Resapan Berdasarkan Luasan Rumah, Curah Hujan, Dan Infiltrasi (Studi Kasus Di Komplek Perumahan Reni Jaya, Pamulang, Tangerang, Banten)
Get PDFAll developers should consider continuity of water supply for the house dweller, as much rain water falling on the house yard will be lost as run-off water instead of filling the shallow ground water. Hence, there should be absorption wells to absorb the water falling from house roof. By so doing, it can increase ground water supply. However, there should be an exact dimension of the absorption well, as the amount of the falling water from house roof depends on the roof width. The dimension of the well for each house can be measured based on roof width, rain fall, and soil capability to absorb water or infiltration capability. For unrennovated house, well diameter are 80 to 120 cm and its total depth are 60 to 160 cm. While for rennovated house, well diameter are 90 to 140 cm and total depth are 120 to 190 c
Lahan Sebagai Matra Dasar Ruang Lingkungan Hidup
Get PDFThis article discusses area as a basic component of living environment. Area can be defined by different perspectives'. The difference of perspectives and land use ethics causes conflict of interest among land user. The conflict will lead to degradation of environmental qualityl. The phenomena can be observed through factors such greenhouse effect, acid rain, ozone depletion, pollution, and social inequality
Kajian Beberapa Uji Kenormalan Dan Kaitannya Dengan Asumsi Kenormalan Pada Beberapa Uji Statistika
Get PDFT-test is proposed as a parametric test to evaluate mean of population(s). Therefore, it is assumed that the data are normally distributed. Recently simulation based research reveal that t-test are robust against non-normality assumption, as long as the distribution of the data are symmetric. For that reason, it is interesting to evaluate the normality test that commonly used before the t-test is applied, particularly on its power and its suitability on symmetrical assumption of t-test on distribution of the data. On this research, the evaluation on normality test was focused at several tests, which are Anderson Darling, Kolmogorov-Smirnov, Ryan-Joiner, and normality test based on skewness and kurtosis, wether the t-test was restricted in evaluation of mean of one population. The simulation reveals that, in general, Anderson-Darling has greater power than the other test in evaluating the normality of the distribution of the data, wether the normality test based on skewness and kurtosis have greater suitability on symmetrical assumption of t-test on distribution of the data. Hence, it is recommended that the normality test based on skewness and kurtosis are used to evaluate the symmetrical assumption of t-test on distribution of the data
KANDUNGAN TIMBAL CRUSTACEA DI MUARA ANGKE DI SEKITAR TELUK JAKARTA
Get PDFThe study was conducted to observe concentration of lead on Crustacean as a marine product of Muara Angke’s traditional fisherman of Jakarta Bay. Four species of Crustacean were selected as sample. Each sample was triple and collected in four sampling periods, east monsoon, transition period from east to west monsoon (transition period I), west monsoon, and transition period from west to east monsoon (transition period II). Lead concentrations of collected samples were tested using flame-AAS. The result indicated that lead concentration on meat of Crustacean was lower than the concentration on carapaces and gills. But each of the concentration was higher than maximum level proposed by CCFAC (1999). Commonly the concentration of lead on Crustacean especially on meat and gills were high during east monsoon, but low during west monsoon.
 
PERHITUNGAN TAMPANG LINTANG DIFERENSIAL HAMBURAN ELASTIK ELEKTRON-ARGON PADA 10,4 EV DENGAN ANALISIS GELOMBANG PARSIAL
Get PDFIt has been calculated theoretically using the partial wave methods for the elastic scattering differential cross-section of electron-argon at 10.4 eV. The wave function from Schrodinger equation was computed by the Numerov integration methods. For simplicity of scattering system , the Gaussian potential form has been employed. For comparison between theoretical and experimental approach then we used the test. The for this research is 2.386 that shows this calculation is good. 
Mencari Peluang Agribisnis Melalui Usaha Kentang G4 Sertifikat
Get PDFThe article discusses the application of potato cultivation technology, process of G4 potato tuber seed production, and economic analysis for G4 potato tuber seed agribusiness. The method used in the research is cultivating G4 potato tuber seed on two different seasons, wet and dry season. The economic analysis shows that the G4 potato tuber seed agribusiness is beneficial. Research shows that production of G4 potato tuber seed on wet season is 25,684 ton per 1,2 Ha with net profit Rp. 25.798.800 and B/C ratio 1.52. On dry season, the production is 19,294 ton/Ha with net profit Rp. 10.247.950 and B/C ratio 1.21. The G 4 potato tuber seed agribusiness gives more benefit than potato consumption tuber agribusiness, although they provide adequate profit.