Simulation and Experimental Characterization of Silver Nanofilm Microstrip Patch Antenna
In this paper we report simulation and experimental characterization of microstrip antenna that employs silver nanofilm as radiating patch. The bulk silver is deposited to a thickness of 30 nm using physical vapor deposition system. In this work non-contacting feed aperture coupled patch antenna is used in order to avoid soldering problem between nanofilm (ultrathin) and bulk copper feed thickness of 17 micron. The experimental result of fabricated nanofilm antenna shows wide bandwidth response over bulk patch antenna. Using nanofilm, an optimum bandwidth of 12% is obtained which is 50% higher than bulk patch antenna. The nanofilm antenna resonates around 6.5 GHz finds application in ‘C’ band frequency.
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Simulation of Seasonal precipitation using ANN and ARIMA Models: A case study of (Iran) Khozestan
Accurate rainfall prediction is of great interest for water management and flood control. In reality, physical processes influencing the occurrence of rainfall are highly complex, uncertain and nonlinear. In this paper, we present tools for modeling and predicting the behavioral pattern in rainfall phenomena based on past observations. The aim of this paper is to predict the seasonal rainfall of (Iran) khozestan using artificial neural network (ANN) and autoregressive integrated moving average (ARIMA) models. In order to evaluate the prediction efficiency, we made use of 33 years of seasonal rainfall data from year 1976 to 2008 of Khozestan Province (Iran). The models were trained with 28 years of seasonal rainfall data. The ANN and the ARIMA approaches are applied to the data to derive the weights and the regression coefficients respectively. The performance of the model was evaluated by using remaining 5 years of data. The study reveals that ANN model can be used as an appropriate forecasting tool to predict the rainfall, which out performs the ARIMA model.
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Simulation program for automating the process of neutralization of aggressive waters using labview
This article contains, in the first chapter, a general presentation of an installation for neutralization of aggressive waters, which may resulted in some electrical thermo-centrals, as those from Deva-Mintia, Paroseni (Romania) etc., in removal of sulphur and by washing anion and cation filters, necessary for de-pollution. Before waters evacuation, the pH must be kept in the limits of neutral values. The automation command is redundant and needs a PC computer and a microcontroller, of Twido type, for example, produced by Schneider Company. We choose here to present what is inside the PC, where was installed a LabVIEW programming environment and where was created a simulation program, which works independently of process and of data acquisition modules and which was called Mintia.sim.vi. This simulates communications with inputs and outputs, through the NI ELVIS - Instrumentation, Data Acquisition and Prototyping for Labs modules. The second chapter presents the interfaces between PC and process: data acquisition modules and multiplexer module, connected in the PC USB port, which were either simulated or included in NI ELVIS. The third chapter contains the program short description, with its panel, offering controls and indicators, among whom being so called „tanks”, which symbolize neutralization and consumption tanks (HCL and NaOH), which indicate, synchronously with physic reality, the reminded tanks filling or depletion. The start and stop controls command the equipment power supply and some virtual LED-s and messages inform permanently the operator about the filling-neutralization-depleting process running. Consequently, the panel is both an operative and a synoptic one.
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Studies on Hybrid Transesterification and Pyrolysis
The aim of this paper is to explore the enhanced methods of transesterification and pyrolysis of waste cooking oil and plastic scrap. Pyrolysis of plastic waste produces bio-oil. The waste cooking oil from hotel industries are subjected to transesterification. The combined bio-diesel and bio-oil from pyrolysis are subjected to cracking reaction which yields bio-diesel with excellent quality for using in automobile engines and to synthesis petrochemicals.
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Study of economical social factors on women perspectives relating to the role of advertisement on decreasing family consumption in Esfahan city
The aim of present search is Study of economical social factors on women perspectives in Esfahan City relating to the role of advertisement on decreasing family consumption. Research method is survey one and statistical population are including all households in Esfahan. Sampling has been done by random method among women of above centers and their numbers are 284 women as a sample device of gathering info is questionnaire whose validity has been reported by professor study and omission vague questions ( content validity) for estimating its reliability by Cronbach coefficient and it is 86%. For analyzing data we use descriptive or deductive statistics (Ki- Cho test) and variance analysis. Research results show that there is a relation among the type of skill and women employment their perspectives.
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Study of optical and electrical properties of [Co(NH3)3(C12H8N2)Cl] Cl2 prepared by a photochemical route
Synthesis of photoadduct ([Co(NH3)3(C12H8N2)Cl] Cl2) based on [Co(NH3)5Cl]Cl2 and 1,10-phenenthroline (C12H8N2) has been successfully achieved by a photochemical route. The as prepared photoadduct has been subjected to different spectroscopic characterizations. The empirical formula mentioned for the photoadduct has been confirmed by CHN analysis. This was also supported by FTIR spectra. UV-Visible spectroscopy reflects the material to exhibit non-linear optical (NLO) properties as the material was shown to exhibit wide transparency in most part of visible region, which is an essential condition for NLO behavior. This has been confirmed by the second harmonic generation (SHG) test, which clearly revealed a greenish emission of wavelength 532 nm from an incident laser radiation of wavelength 1064 nm. The SHG efficiency for the photoadduct was found to be 0.46 times to that of standard KDP. Also, I-V characteristics shows the material to fallow ohmic behavior with a resistance of 1.2 M?. This has been attributed to the large band gap as obtained from UV-Visible spectra.
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Study the Effect of using Different Insulating Jacket on Energy Equivalent of the Bomb Calorimeter
In this research work, effect of outer jacket insulation on energy equivalent of bomb calorimeter has been analyzed. Energy equivalent shows the sum of the heat capacities of the components in the calorimeter, especially the bomb, the bucket and the water in the bucket. Energy equivalents are determined at regular intervals by experimenting with a sample of a standard material with a known heat of combustion. Emphasis is being placed on minimizing thermal losses between bomb calorimeter and surrounding. For that some Saw dust are introduced in the outer jacket of the present calorimeter which was previously designed only for filling with water (water jacket). For assessing the effect and significance of these selected insulations on energy equivalent of bomb calorimeter, experiments and calculation have been done with same fuel (Benzoic Acid). In other words, we want to prove that when heat transfer between system and surrounding is less, energy equivalent of bomb calorimeter would be lesser. Experiments were carried out on bomb calorimeter with four types of jackets which are filled with water (Thermal conductivity – 0.56), glass wool (Thermal conductivity – 0.04), and saw dust (Thermal conductivity – 0.08). Some modification work on existing bomb calorimeter had to be done so that selected insulations can be installed as desired in the apparatus for experiments.
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Syntactic analysis of George Orwell animal farm
This study sets out to analyze the syntactic analysis of George Orwell’s Animal Farm as a way of providing an alternative reading of the text. The studies examine the syntactic functions of some sentence types, cohesion in relation to the text and reference function. All these are investigated. Thus, the principal aim of this study is to show how some syntactic features contribute to the elucidation of the message of the text and thereby enhancing its readability.
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Testing a Locally Assembled Combine Implement Used For Open Furrow, Planting and Fertilizing Under Different Machinery Unit Speeds
The experiment was conducted for testing a locally assembled combine implement used for open furrow, planting and fertilizing under different machinery unit speeds. New Holland TD80 tractor was used in this study. Three machinery speeds included 6.26, 7.44 and 9.53 km?hr which represent main plot and two Furrow depths included 5-15 and 15-25 cm which represent sub plot were used in this study. Field efficiency, Leaf area, 100 seed weight, percentage of oil in maize and maize yield was measured in this experiment. Split plot design under Randomized Complete block design with three replication was used in this study. Least significant differences (L.S.D) under 0.05 level was used to compare the mean of treatment. The results can be summarized as Fallow: 9.53 km ? hr speed gave lower field efficiency stood 63.45% and higher maize yield stood 9.65 t ?h. 5 - 15 cm furrow depth gave higher field efficiency stood 69.01% and greater leaf area stood 0.57 m2 while 15-25 cm furrow depth gave higher maize yield stood 5.23 t ?h. The interaction between speed and furrow depth, has significant effect on all plant properties except 100 seed weight and percentage of oil in maize.Using the locally assembling combine implement for planting corn, fertilizing and open furrows is successfully done.
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The Cytitis glandularis : Report of 4 cases
The cystitis glandularis is a rare and begign tumor, usually asymptomatic and is favored by chronic irritation. It is sometimes associated with a pelvic lipomatosis. Its transformation into adenocarcinima is exceptional and occurs in cases of persistent contributing factor. Clinically,the hematuria is the dominating symptom with a pollakiuria. The treatment is various, in function of the tumoral volume and the importance of the symptomatology. The tumoral resection and the histological examination are fundamental for the diagnosis. We report 4 cases of cystitis glandularis treated in our service.
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