Performance evaluation for high speed vehicle in VANET

Vehicular Ad hoc Networks (VANETs) is a high dynamic emerging technology for supporting wireless communication among vehicles. Communication via routing packets over the high-speed vehicles is a challenging task. Vehicles mobility speed can varies depending on the road specification. However in highways speed can be increased up to 120 – 200 Km/hr. moving in high speed can affect the efficiency of data delivery. In particular V2I traffic where moving car trying to deliver data to fixed space units which are designed to collected and process data from vehicles. In this paper, we investigated the consequences on increasing vehicle mobility speed in term of data delivery evaluation metrics including network throughput, delay and packet delivery ration. Results shows that in high speed mobility VANET, network throughput it decreased, and packet delivery ration is decreased as well

Analisis Pengaruh Jumlah Armada, Jumlah Nelayan, PDRB, dan Investasi terhadap Produksi Perikanan di Wilayah Nias (Analisis Data Panel)

This research aims to analyze the effect of the number of fleets, the number of fisherman, GDP, and investment to the production of fisheries in the region of Nias. The data used in this research is secondary data which is obtained from Badan Pusat Statistik and Dinas Perikanan. The sample consists of five regencies/city, including Regency of Nias, Regency of Nias Selatan, Regency of Nias Utara, Regency of Nias Barat, and Gunungsitoli.This research used the method of Panel Data Analysis which is based on five years observation, from 2008 to 2012. The result of this research showed that the number of fleet and the number of fisherman have a positive and significant effect to the production of fisheries in the region of Nias. GDP has a negative and significant effect to the production of fisheries in the region of Nias. While investment has a negative and insignificant effect to the production of fisheries in the region of Nias. The result of Chow test and Haussman Test show that the best method to use is FEM. Based on difference test among variables can be seen that there is difference of fishery production among the regencies of Nias

Pengaruh Temperatur Annealing Terhadap Sifat Fisis Batu Bata Limbah Serat Alami

This study aims to determine at what temperature annealing which will produce compressive strength and good porosity in the brick waste natural fiber. This study was an experimental study with dick variables such as the proportion of clay and waste of natural powder that is 90%: 10%, each grain size 0.18 mm material, waste natural powder used is sawdust sawmill. The independent variable is the temperature annealing while the dependent variable is the compressive strength and porosity. And wastes natural clay powder mixed and given 5 liters of water, then in print square shaped measuring 6x6x6 cm by 20 pieces to determine the compressive strength and the cylinder-shaped measuring 10 x 7 cm by 4 units to determine the value of porosity. Each of these samples with variations in-Anneal Annealing temperature 7000C, 7500C, 8000C and 8500C using Electric Furnace. After data collection and data analysis of compressive strength and porosity of the importance of the value of the maximum compressive strength of 89.5 kg / cm2 at a temperature of 8500C and this value meets the standards. While the minimum porosity value was 2.10% at the temperature of 8500C

Pendekatan Wasatiyyah dalam Berfatwa: antara Keterikatan Literalis dengan Kelonggaran Liberalis

 Dalam era saat ini kemajuan ilmu pengetahuan dan teknologi, banyak masalah baru muncul, yang dikategorikan sebagai hukum Islam kontemporer. Putusan dari isu-isu tersebut memerlukan pendekatan ijtihad kolektif, sesuai dengan konteks saat ini untuk memastikan kesejahteraan manusia. Dengan demikian, artikel ini membahas pendekatan fatwa. Pada dasarnya, ada berbagai pendekatan antara dua faksi pemikiran, pendekatan yaitu ketegasan dan pendekatan kelonggaran. Namun, antara kedua pendekatan bertentangan, telah muncul media yang dikenal sebagai pendekatan wasatiyyah dalam mengeluarkan fatwa. Pendekatan ini secara signifikan memberikan solusi yang masuk akal untuk mengatur fatwa bebas dari kecenderungan menjadi terlalu ketat atau terlalu longgar dan tidak pernah menyimpang dari tujuan syariah

Microstrip Array Antenna using Series-Corporate Feed for Navigation System

In this paper, the proposed antenna consists of a single transmission line for 6-elements microstrip array antenna using Rogers RT5880 substrate material with a dielectric constant (εr) of 2.2 and thickness of 0.787 mm for navigation applications. The array structures of unequal patches placement are proposed with corporate feed line and H-shaped configurations are employed on the substrate and used the microstrip feed line with a corporate feed network excited via 50 Ω with T-junction method to control the feed for each group. 6-elements microstrip array antenna has operated at the resonant frequency of 1.27 GHz was obtained between the frequency from 1.2663 GHz to 1.2734 GHz where the S11-parameters of the structure designed and simulation below than <-10 dB. The analysis shows the antenna gain has increased 72.6% with high directivity as compared to single elements microstrip antenna. The radiation characteristics and other array parameters are evaluated with respect to the application requirements. However, circular polarization has obtained in 6-elements array antenna as the axial ratio is successfully achieved below than -3dB. The antenna efficiency, the current distribution, VSWR, and S11-parameters of the proposed 6-elements CP microstrip array antenna have been presented and discussed in detail. The design methodology and the measurement results have been presented and discussed in this paper

Ketersediaan Energi Ransum Yang Mengandung Wheat Pollard Hasil Olahan Enzim Cairan Rumen Yang Diproses Secara Steam Pelleting Pada Ayam Broiler

Wheat pollard is a common feed ingredient, but its non starch polysaccharide component is still a limiting factor as an anti nutrition. The combination treatment of enzymes from rumen liquor (DE) and steam pelleting (SP), could change non-starch polysaccharide structure to be more digestible for broiler chicken. Twenty seven broiler chicken of 37 days old were divided into 27 experimental unit and randomly offered one of 9 treatments, that were R1 (DE 0 U/kg + 600C), R2 (DE 0 U/kg + 800C), R3 (DE 0 U/kg + 1000C), R4 (DE 620 U/kg + 600C), R5 (DE 620 U/kg + 800C), R6 (DE 620 U/kg + 1000C), R7 (DE 1.240 U/kg + 600C), R8 (DE 1.240 U/kg + 800C) and R9 (DE 1.240 U/kg + 1000C). The chicken have been fasted for 24 hours and fed by force feeding 30 g/head while water was offered ad libitum. Apparent Metabolizable Energy (AME), Nitrogen Corrected Apparent Metabolizable Energy (AMEn), True Metabolizable Energy (TME), Nitrogen Corrected True Metabolizable Energy (TMEn) and Nitrogen Retention were determined. Three chickens were used for collecting nitrogen and endogenous energy. Data were analyzed by analysis of variance according to completely randomized design with factorial 3x3 and Duncan’s Multiple Range Test. Enzymes dosage and steam treatment did not influence metabolizable energy (AME, AMEn, TME and TMEn) and nitrogen retention. Combination of enzymes (R4 and R8) and steam temperature treatment increased AME, AMEn, TME and TMEn but did not increase nitrogen retention. The result indicated that combination of enzymes at dosage of 620 U/kg with steam 600C treatment increased the metabolizable energy of wheat pollard based diets

Pertumbuhan Optimum Penicillium Spp. Dan Cunninghamella Spp. Yang Diisolasi Dari Pakan Dan Efek Toksiknya Pada Mencit (Mus Musculus)

Fungi are a major microorganism present in the feedstuffs that able to reduce nutritive value and produce toxin that harmful for animal. Penicillium spp. and Cunninghamella spp. were dominant present in the feedstuffs in tropical regions. The objectives of this study were to find out the optimum pH and temperature of Penicillium spp. and Cunninghamella spp. on agar media and to find out the effect of feeding diet containing corn contaminated with the fungi at level of 0%, 50% and 100% on the performance and relative organ weight of 45 mice (Mus musculus). Cunninghamella spp. grew at pH range of 3-9, and Penicillium spp. at pH range of 3-7. The temperature for the optimum growth of both fungi was on room temperature (28±2 oC). Feed consumption and daily gain (ADG) of mice were not significantly affected by content of corn contaminated with Cunninghamella spp. Conversely, corn contaminated with Penicillium spp. significantly (P < 0.05) reduced feed consumption and ADG of mice. Treatments had no effect on liver and hearth relative weight, but significantly influenced relative weight of kidney and lymph. Lymph relative weight of mice fed ration containing Penicillium-contaminated corn was lower (P < 0.05) than that of control. Mice treated with contaminated corn from both fungi at the level 100% also significantly (P < 0.05) had higher kidney relative weight than that of control. It was concluded that the toxic effect of Penicillium spp. was higher than that of Cunninghamella spp