Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimal Design Of Renewable Energy Systemusing Genetic Algorithm Case Study In Parangtritis

ABSTRAK Andil pariwisata terhadap perkembangan regional sangat besar begitu juga andilnya terhadap permasalahan lingkungan. Untuk mengurangi aspek negatif terhadap lingkungan serta meningkatkan penghematan, sistem energi terbarukan menempati prioritas penting dalam bidang pariwisata. Konfigurasi optimal sistem energi terbarukan direncanakan menggunakan Algoritma Genetika. Penelitian ini dilakukan untuk mengoptimasi sistem energi terbarukan di Parangtritis, Kretek, Bantul, Jawa Tengah. Sistem yang dirancang terdiri dari sel surya dan turbin angin, sedangkan sistem penyimpanannya menggunakan baterai dan fuel cell. Algoritma ini meminimisasi fungsi objektif biaya total yang terdiri dari biaya investasi, biaya penggantian serta biaya operasi dan perawatan. Kehandalan sistem dievaluasi menggunakan indeks Equivalent Loss Factor ( ). Indeks ini memberikan informasi jumlah energi yang tidak dapat dipasok oleh sistem energi terbarukan. Hasil simulasi memperlihatkan jumlah optimal sistem energi terbarukan dicapai dengan jumlah sel surya sebanyak 3, baterai 48,turbin angin sebanyak 36, elektroliser sebanyak 3, tangki hidrogen 2 dan fuel cell sebanyak 8. Nilai ELF yang digunakan dalam penelitian ini adalah 0.01. ABSTRACT Tourism has a massive contribution to regional development and shares environmental issues. Reducing reliances on fossil fuel, it is not still adequating energy consumption yet to cause development of renewable energy in crucial position for tourism desicition. An optimal configuration of renewable energy system was planned by Genetic Algorithm in this work. This research conducted to optimize renewable energy system in Parangtritis, Kretek, Bantul Central Java. The system consisted of solar cells and wind turbines, and the batteries and fuel cells were as storage system. The algorithm minimize objective function of total cost consisted of investment, replacement as well as operating and maintenance costs. A reability evaluation of the system was given by Equivalent Loss Factor (). This index inform an insufficient energy in the systems. The simulation showed an optimum size of the system, achieved by size of PV, battery, wind turbine, electrolizer, hidrogen tank and fuel cell were 3, 48, 36, 3, 2, 8 respectively. The ELF used in this simulation was 0.01. Keywords: fossil fuel, renewable energy, tourism, Equivalent Lost Factor
Turbulence Characteristics of Flow Field arounda Cylindrical Obstacle Placed ina Trapezoidal Channel

This paper describes measurements of the turbulence surrounding a vertical cylinder in a steady flow. The approximate size of circulations and eddies produced by a cylindrical obstacle subject to steady flow in a trapezoidal channel are investigated. A four-component high-sampling frequency acoustic doppler velocimeter (ADV) was used to collect flow data, which were filtered using effective filtering algorithms before being processed. Because the turbulence is three dimensional, calculations were performed for all three directions. The energy distribution and dependence of the fluctuating velocities were determined and interpreted using an autocorrelation function and spectral analysis. Important turbulence statistics were calculated, including Reynolds stresses, integral time scales, and integral length scales. For representative points, the approximate size of the turbulent eddy was calculated. A spectral density function was generated and analyzed. The results show that highly coherent and dependent structures are visible in the wake vortices region for each axis.
In vitro regeneration of selected commercial Tanzanian open pollinated maize varieties

Four Tanzanian open pollinated maize varieties namely; Kito, Situka M-1, Staha and TMV-1 were regenerated in vitro using immature zygotic embryos as ex-plants. Callus induction was achieved using Murashige and Skoog (MS) basal medium supplemented with 1, 1.5, 2 or 2.5 mg/l of 2, 4-D. Callus induction was significantly affected by the genotype of the varieties. Among the varieties tested, Kito, Situka M-1 and Staha had significantly higher callus induction frequency of 84.4, 92.7 and 88.7%, respectively compared to TMV-1 (43.3%). Embryogenic callus induction percentage was significantly influenced by the genotype, 2, 4-D concentrations and their interaction effect implying differential response of the genotypes to 2, 4-D concentrations. Among the genotypes tested, Kito gave significantly (p<0.05) the highest embryogenic callus frequency of 69.5%. Great variations were observed among the genotypes with regard to regeneration frequencies. Staha was comparatively the most regenerable variety with RF of 32.6% than even Kito which had the highest callus induction and embryogenic callus formation. MS medium amended with 1 mg/l 2, 4-D was observed to be the optimum formulation for the induction of embryogenic calli for genotypes tested in this study. Using this regeneration system Situka M-1, Staha and TMV-1 can now be improved against various production constraints through genetic engineering. Key words : 2, 4-dichlorophexyacetic acid, embryogenic callus, immature zygotic embryos, regeneration frequency, somatic embryos, Tanzanian open pollinated maize.
Effect of Wind Generation System Rating on Transient Dynamic Performance of the Micro-Grid during Islanding Mode

Recently, several types of distributed generations (DGs) are connected together and form a small power system called Micro Grid (MG). This paper developed a complete model which can simulate in details the transient dynamic perfor-mance of the MG during and subsequent to islanding process. All MG’s components are modeled in detail. The devel-oped model is used to investigate how the transient dynamic performance of the MG will affected by increasing the rating of wind generation system installed in the MG. Two cases are studied; the first case investigates the dynamic performance of the MG equipped with 10 kW fixed speed wind generation system. The second studied case indicates how the dynamic performance of the MG will be affected if the wind generation system rating increases to 30 kW. The results showed that increasing of wind generation rating on the MG causes more voltage drops and more frequency fluctuations due to the fluctuation of wind speed. Increasing voltage drops because wind turbine generator is a squirrel cage induction generator and absorbs more reactive power when the generated active power increases. The frequency fluctuations due to power fluctuations of wind turbine as results of wind speed variations. The results proved that when the MG equipped with large wind generation system, high amount of reactive power must be injected in the system to keep its stability. The developed model was built in Matlab® Simulink® environment.
Expression and Purification of Z Protein from Junı́n Virus

Arenaviridae comprises 23 recognized virus species with a bipartite ssRNA genome and an ambisense coding strategy. The virions are enveloped and include nonequimolar amounts of each genomic RNA species, designated L and S, coding for four ORFs (N, GPC, L, and Z). The arenavirus Junı́n (JUNV) is the etiological agent of Argentine Hemorrhagic Fever, an acute disease with high mortality rate. It has been proposed that Z is the functional counterpart of the matrix proteins found in other negativestranded enveloped RNA viruses. Here we report the optimized expression of a synthetic gene of Z protein, using three expression systems (two bacterial and a baculoviral one). One of these recombinant proteins was used to generate antibodies. A bioinformatic analysis was made where Z was subdivided into three domains. The data presented contributes methodologies for Z recombinant production and provides the basis for the development of new experiments to test its function.
2D Analytical Calculation of Magnetic Field and electromagnetic Torque for Surface-Inset Permanent Magnet Motors

The paper deals with a subdomain model for predicting the magnetic field distribution in surface-inset permanent-magnet motors with semi-closed slots under load conditions. Due to the presence of electrical current in the stator slots, a magnetic vector potential formulation is used. The magnetic vector potential distribution in each subdomain (air-gap, stator slots, and rotor slots with inset PMs) is obtained by solving two-dimensional Laplace's and Poisson's equations by the separation of variables method. One of the main contributions of the paper concerns the magnetic vector potential expression in the PMs region. Indeed, PMs are inset into the rotor iron which leads to solve Laplace's equation with nonhomogeneous Neumann boundary conditions. Magnetic field distribution and electromagnetic torque computed with the proposed analytical method are verified with those obtained from finite element analyses.
Protein Fractions of Some Plant and Animal Protein Sources Using CNCPS Method

Aims: This experiment was conducted with the aim of investigating fractions of protein of some plant and animal protein sources using the CNCPS method. Study Design: After preparing the desired feed items, the protein fractions of feed samples were determined. Methodology: This experiment was conducted on sources of plant protein (soybean meal, rapeseed meal, and cottonseed meal) and sources of animal protein (poultry offal meal, fish meal and blood meal). The protein fractions of feed samples were determined by Licitra et al, 1996. These fractions were included non-protein nitrogen, true protein, soluble true protein, insoluble protein, soluble protein in neutral detergent, insoluble protein in neutral detergent but soluble in acid detergent and insoluble in acid detergent and attached. Original Research Article Chanzanagh et al.; AJRAVS, 3(2): 1-6, 2019; Article no.AJRAVS. 48705 2 Results: After testing, the amount of non-protein nitrogen (fraction A) in soybean meal, cottonseed meal and rapeseed meal was 8.52, 6.33 and 4.55%, and in poultry offal meal, fish meal and blood meal in slaughterhouses were 10.38, 13.63 and 16.08% of crude protein, the amount of B1 in soybean meal, cottonseed meal and rapeseed meal was 2.30, 3.32 and 13.68% respectively, and in poultry offal meal, fish meal and blood meal, in slaughterhouses were 3.45, 7.44 and 7.16% of crude protein respectively , the amount of B2 in soybean meal, cottonseed meal and rapeseed meal was 80.49, 77.50 and 68.40%, in poultry offal meal, fish meal and blood meal, respectively, 66.36, 55.03 and 61.66% respectively, the amount of B3 for soybean meal, cottonseed meal and rapeseed meal was 6.24, 2.63 and 9.11%, respectively, and poultry offal meal, fish meal and blood meal in slaughterhouses were 7.50, 6.74 and 11.91% of crude protein respectively , the protein C portion assumed in the rumen's indissoluble CNCPS system in soybean meal, cottonseed meal, and rapeseed meal was 2.45, 9.92, and 4.77%, respectively, in poultry offal meal, fish meal and blood meal, respectively, 12.21 , 17.16 and 3.18% of crude protein. Conclusion: The results indicate that the use of CNCPS and NRC data for portion fractions of different feeds cannot be considered absolutely, and domestic research and results should be used to extract samples from different regions and different growth conditions, so that the dietary regimens With these foods, it's real and more balanced and with less waste of nutrients.
Screening Criteria for Selection of New Products in the Electronic Component Distribution Industry

Screening new industrial product ideas at the early stages of a new product development process is a critical activity. Although making a good new product choice is vital, managers have not applied systematic screening models because these models have not been customized to reflect the particular character of their company and industry. A customized systematic procedure is proposed to manage the task of selecting potential new products for an electronic component distributor at the early stages of a new product development (NPD) process. Screening criteria have been reviewed and optimized by project leaders and managers closest to the new product selection decision. The screening model has been used in a company to predict the success or failure of projects, and these predictions have been compared to the actual results from real projects. Thus, the study provides insights into the capability of the screening model and suggests further improvements to the screening process.
The use of genetic algorithms for structural optimization of hybrid sandwich panels

The study presented in this paper is a part of the research project “EasyFloor – Development of composite sandwich panels for rehabilitation of floor buildings”, with reference number 3480, supported by ANI, through FEDER. The last author acknowledge the grant SFRH/BSAB/114302/2016 provided by FCT.
EVALUATION OF THE RC4 ALGORITHM AS A SOLUTION FOR CONVERGED NETWORKS

Converging of all traffic types into a single multi-service network is a hot topic in the networking industry. Network designers have selected IP as the common infrastructure for this new converged network for its popularity and scalability. But due to the increased number of protocols and applications running on converged networks, new vulnerabilities are emerging and therefore new opportunities to break into the network are added, and so many security mechanisms are needed. Encryption solution based on RC4 algorithm will fit all types of application running over converged network, specially the real time applications and cause an acceptable delay. We will apply the NIST suite of statistical tests to RC4 output to test its randomness and security. The testing results illustrates that RC4 is secure and random enough to be used within the converged network. K e y w o r d s: converged networks, VOIP security, RC4, stream ciphers, RNG, PRNG
Numerical simulation of cyclonic storm surges over the bay of bengal using a meteorology-wave-surge-tide coupled model

The purpose of this study was to evaluate the performance of an integrated meteorology and storm surge model for both the hind casting and prediction of future climate change intensified cyclones over the Bay of Bengal. This meteorology based storm surge model was developed and applied by integrating a mesoscale WRF model with the wave model SWAN and coastal ocean model FVCOM. The coupled model could capture the actual phenomena of historical cyclone Nargis, which made landfall in Myanmar in 2008, accurately and reproduce the total water level rise due to this event. The model was then used to also simulate future cyclones over the Bay of Bengal taking into account climate change by the year 2100.
Advanced User Interfaces for e-Learning

This paper outlines an original approach to e-learning systems which integrates the most recent results in the field of human-computer interaction. Notably it will show the applicability of multimodal, attentive, affective and perceptual user interfaces to monitor the students’ behavior during their interaction with an e-learning system, in order to measure their attention level and involvement and promptly provide the necessary support to carry out an effective learning process.
Characterization of Semi-Interpenetrated Network Alginate/Gelatin Wound Dressing Crosslinked at Sol Phase

Gel contraction of alginate during ionic crosslinking at sol phase was reduced by blending with gelatin solution due to intermolecular interaction and chain entanglement. The semi-interpenetrated network (semi-IPN) of wound dressing hydrogels were prepared by overlaid alginate/gelatin blend with 1.0% (w/w) CaCl2 solution under ambient temperature for 2 h. Results showed that gel contraction was significantly reduced with increasing gelatin content i.e. from 40.5 ± 5.8% for pure alginate to as low as 5.8 ± 1.2% for alginate/gelatin of 1:7 (w/w). It seems that gelatin successfully inhibited alginate chains mobility during their network re-arrangement by Ca2+ cation. The FTIR spectra of hydrogels showed combination of characteristic vibration of alginate and gelatin. Increasing gelatin content also significantly improved elasticity and tensile strength at break of dried hydrogels. Swelling kinetics of dried hydrogels were fitted Schott’s second-order power-law model. Increasing gelatin fraction increased the swelling rate while decreased the swelling at equilibrium. Their absorptive capacity were of interval for management of moderate to heavily exudating wound.
The Role of Managerial Stock Option Programs in Governance: Evidence from REIT Stock Repurchases

This article examines the role of stock option programs and executive holdings of stock options in real estate investment trust (REIT) governance. We study the issue by analyzing how the market reaction to a stock repurchase announcement varies as a function of the individual REIT's governance structure. In particular, we examine how executive and employee stock option holdings influence the market reaction to a firm's announcement of a stock repurchase. Using a sample of REIT repurchase announcements, we find that the market reacts more favorably to announcements by firms where executives have larger option holdings and the chief executive officer is not entrenched. Our results with respect to the roles of stock option holdings of executives and nonexecutives differ from those reported for a cross-section of non-REIT firms. While we find evidence supporting the importance of executive stock options in aligning the incentives of management and reinforcing the positive signaling associated with a repurchase announcement, we find little evidence that the market views REIT repurchases as being used primarily to fund option exercise. We attribute these findings to greater dependence by REIT investors on internal governance mechanisms (such as stock option programs) as a result of regulatory restrictions that limit external monitoring such as hostile takeovers.
GENERALISED LEAST SQUARES ESTIMATORS IN SERIALLY CORRELATED ERROR MODELS FROM AN ASYMMETRY

S. Nakale Department of Statistics, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa. e-mail: sammynakale@gmail.com J. Coetsee Department of Statistics, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa. M. Arashi Department of Statistics, School of Mathematical Sciences, Shahrood University, Shahrood, Iran. Department of Statistics, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa. A. Bekker Department of Statistics, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa.
Temporal Activity Patterns and Foraging Behavior by Social Wasps (Hymenoptera, Polistinae) on Fruits of Mangifera indica L. (Anacardiaceae)

This research was done in Juiz de Fora, Minas Gerais, Brazil on february 2012, with objective was to determine which species of social wasps visiting mango fruits, their behaviors displayed by them while foraging and verify which the species of wasps visitors offer risk of accidents to farmers. The studied area was monitored during February 2012, from 8:00 to 17:00. in a 144 hour effort, and the data collected included the time of activity, diversity, aggressiveness and the general behavior of social wasps around the fruits. There were registered a total of 175 individuals of 12 different species, healthy fruits were damaged during the day, and we registered the abundance and richness peaks throughout the day. This study indicated the needs for special care during the harvest, as aggressive wasps are indeed present and the abundant, resulting in a possible increase of the risk for the workers.
Microcrystalline cellulose powder from banana pseudostem fibres using bio-chemical route

Microcrystalline cellulose powder was prepared from banana pseudostem fibres. The conventional method for preparing cellulose powder requires cooking of raw material with high concentration of alkali followed by washing, bleaching and grinding. In this study cellulose powder was prepared by a method which was developed by CIRCOT in which raw material (banana fibres) were subjected to anaerobic treatment in the presence of microbial consortium for 7 days at room temperature. Fibres were washed with water and cooked in 1 % alkali at 100 o C for 30 min. followed by bleaching and thorough washing. Hydrolysis of bleached pulp was carried out using 2.5N HCl to get the microcrystalline cellulose powder and studied the properties of the produced cellulose powder such as moisture content, ash content, cellulose content, starch content, pH value, solubility, degree of polymerization, molecular weight, particle size, degree of compressibility, x-ray crystalinity and infrared spectroscopy. Microcrystalline cellulose (MCC) powder prepared from banana fibres has properties at par with commercial grade MCC.
On the Validity of Physical Optics for Narrow-band Beam Scattering and Diffraction from the Open Cylindrical Surface

The exact formulas for the induced electric surface current (in the scattering phenomenon) and the equivalent electric surface current (in the diffraction phenomenon) on the open cylindrical surface due to an arbitrary narrow-band beam have been shown in their closed-form expressions within the context of the cylindrical harmonics, which gives information about the validity of the Physical Optics (PO) approximation. Both the Electric Field Integral Equation (EFIE) and the Magnetic Field Integral Equation (MFIE) are used to find the induced (equivalent) electric surface currents in the context of the cylindrical harmonics. The numerical example of the scattering and diffraction of the Hermite Gaussian beam from the open cylindrical surface is shown. The result is useful for the evaluation of the validity of the PO approximation in the cylinder-like surface.
The Impact of Foreign Acquisitions on the Acquirers’ R&D Activities– Firm-Level Evidence

This paper provides empirical evidence on the relat ionship between cross-border acquisitions and innovation activities of the acquirer. For the empirical analysis a unique firm-level data set is constructed that combines survey data for German fi rms with a merger and acquisition database. After a cross-border acquisition, investing firms d i play a higher rate of domestic expenditures for research and development. After controlling for endogeneity of foreign acquisitions by estimating a two-equation system with limited depen dent variables and applying instrument variable techniques it is found that part of this c orrelation stems from a causal effect. The estimated effects are robust towards alternative id ent fication strategies and are higher in industries with high knowledge intensity. The analy sis is complemented by an investigation of the effects on tangible investment spending and by a comparison of the effects of cross-border acquisitions to those of Greenfield foreign direct investments and domestic M&As.
Benchmarking of opportunistic networking experiments

Newly developed protocols and systems in opportunistic networks need to be validated in large populations over large time periods. Synthetic connectivity traces, generated traces that reproduce device connectivity patterns measured in live experiments, can benefit the research community by providing lower overhead in comparison to large scale field tests for longer periods of time. Generated traces can also be analyzed and compared with field traces to determine if key features are preserved. However, when these traces are applied to testing opportunistic applications, there is no guarantee that the application will behave the same way as it did for the original trace. Factors that can influence the regeneration process and the performance of the application may not be captured by current connectivity models. Consequently, we propose to use a benchmarking application to establish a confidence level for synthetic trace generation methods. In this paper we discuss and present our preliminary results towards benchmarking opportunistic networking experiments and discuss some future directions for research.