Miracle-dz/UniFAR-FTUs huggingface dataset:
Economic and Environmental Dispatch at Highly Potential Renewable Area with Renewable Storage

Economic/Environmental Dispatching (EED) is an important multiobjective optimization problem to decide the amount of generation to be allocated to each thermal generating unit including renewable sources so that the total cost of generation and emission of polluting gases is minimized without violating system constraints. Here, the problem is EED of hybrid power system including solar, wind and storages of renewable energies. High potential renewable area ensures the availability of renewable sources in some extent. A consistent optimum EED can be obtained by extracting maximum renewable energy during their availability and using them for both available and unavailable periods with the aid of their storages. This paper illustrates the optimization of EED with renewable storage using MATLAB simulations. The simulations have been done using IEEE-30 test bus (with 6 generators) data.
Capital Flight and Exchange Rate Volatility in Nigeria: The Nexus

This paper attempts to ascertain the relationship that exists between capital flight and exchange rate volatility in Nigeria. The study adopted an ex-post facto research design. The study employed the parametric statistical techniques of Ordinary Least Squares (OLS) since the data (secondary data) used is quantitative in nature. To capture the relationship between capital flight and exchange rate in Nigeria, the empirical model that accommodates the capital flight and exchange rate nexus was specified. The coefficient of capital flight was positively signed and statistically very highly significant at 1%. This implies that every unit increase in capital flight will lead to increase in exchange rate in Nigeria. This means that exchange rate is influenced by the volume of capital flight in Nigeria. The study recommends among others that a stable exchange rate regime should be established through a drastic reduction in capital flight and increase capital inflows in the form of foreign private investments. Key w ords: Capital flight, Exchange Rate, Hot Money Approach, Volatility, Trade Mis-invoicing, Balance of Payment.
SILS cholecystectomy - our first experiences

Introduction: Persistent urge to minimize operative trauma and improve the cosmetic effect after surgical treatment in recent years has contributed to the introduction of new minimally invasive techniques such as NOTES and SILS. Aim: To present our first experience with SILS cholecystectomy performed via single access through the navel. Material and methods: From February to June 2009, twenty-five SILS cholecystectomies were carried out using three 5 mm trocars inserted into the peritoneal cavity through a 2.5 cm-transverse incision in the umbilicus. Regular laparoscopic instruments were used. Results: The average time of operation was 74.2 min. In one case, conversion to classic 4 trocar laparoscopy was necessary, for pressure could not be maintained due to dilation of trocars. In one patient an additional trocar was introduced in the right epigastrium due to difficulty in preparation of Calot’s triangle. Laparotomy was necessary in one case for biliary peritonitis as a consequence of Luschka duct overlooked during open surgery. Conclusions: In our experience SILS cholecystectomy is a procedure that can be safely performed with existing laparoscopic instruments. The main benefit of this technique is a very good cosmetic effect, as the scar after the procedure is hardly visible.
The Performance of Understorey Herbaceous Perennials in Low Maintained Urban Parks

The stylized naturalistic herbaceous perennial planting is the most innovative approach in the urban landscape (Dunnett and Hitchmough, 2007; Oudolf and Kingsbury, 2014; Rainer and West, 2015). The characteristic beautiful prairies and meadows ecosystem (Schmithals and Kuhn, 2017; Hitchmough, 2017), as well as the herbaceous understory vegetation (Martinek, 2004; Hillová, 2010; Schulte, 2017) became the most frequent sources of inspiration for landscape designers around the world. The enrichment of herbaceous layers is an essential part of recreation of urban woodland and urban parks in last decades (Gilbert and Anderson, 2004; Brunet, 2007). Enhancement of attractive field layer species has been possible by natural succession processes (Gilbert and Anderson, 2004; Brunet, 2007; Onaindia et al., 2013) or management interventions (Martinek, 2004; Riedel et al., 2007). Natural colonization was found out to be very poor and slow and should build out from cores of ancient woodland for optimal ground vegetation development. However, many typical forest species are not able to disperse across open fields (Brunet, 2007) and are not able to persist through competitive aggressive ruderal weed species (Francis, 1998; Hill, 2002). Without effective control of these competitive species, any attempts to either encourage or actively introduce other less competitive ground layer species (by sowing or planting) are likely to be unsuccessful (Hill, 2002). The successful herbaceous plant introduction by direct enhancement techniques to increase species diversity and additional correct management may be a long-term benefit in the appearance, use, ecology and provision of wildlife habitat (Woodland, 2005). Mixed planting is the simplest way to establish a multipurpose and dynamic perennial community in low maintained urban parks. The affordable perennial mixes which combine attractiveness with low maintenance were developed under the auspices of the German Federation of Plant Nurseries (BdS) (Riedel et al., 2007; Schulte, 2017). This has become an excellent tool for practitioners who may be possible to ensure quality and functional introduction of semi-shade and shade tolerant herb layers into low maintained urban parks. The aim of this research project was to investigate the performance of diverse herbaceous perennials mixtures in low maintained urban woodland edges. The key research questions were as follows:  What effects does the structure of woody plant species have on the establishment success of understorey planting mixtures?
Microwave Technique: An Innovated Method for Sintering β-Eucryptite Ceramic Materials

Microwave sintering has emerged in recent years as a new, fast, cheap and green technology for sintering a variety of materials. The main advantages of microwave heating can be summarized as follow: reduced processing times, energy costs and environmental benefits. Nevertheless, understanding how this specific heating drives to obtain ceramic materials with a combination of unique, structural and functional properties is the big challenge. The present work shows the different and improved properties achieved with β-eucryptite nanocomposite ceramic materials by microwave heating compared with the conventional method. Microcracking evolution in addition to the microstructure of the sintered materials along the several thermal cycles has been studied. Mechanical properties changes observed can be related to this process. Thus, the microwave technique is a promising tool for sintering new materials by controlling the composition of the phases, chemical reactivity and nanostructure, using up to 70% less energy in the whole sintering process than conventional heating. This technique becomes part of the new and innovative technologies "eco-green".
A Literature Survey on Evaluation and Comparison of Regression Testing Techniques for Web Applications

Regression testing verifies that functioning of web applications remains after modifications in the web services. With the aim to find a base for the future study in collaboration of academia with the industry, a survey paper on evaluation and comparison of regression testing techniques has been conducted. There are total twenty papers identified for this survey. Overview of the regression testing techniques presented by researchers is evaluated for the test selection. None of the technique has been found to be clearly superior as results depend upon the several factors.
Human or malware? Detection of malicious Web requests

Nowadays covert command and control (C&C) communication channels are built using the HTTP/HTTPS protocol, mainly because it is rarely blocked as well as malicious traffic can hide inside huge amounts of daily benign browsing traffic. This thesis addresses the problem of identifying malicious Web traffic and more specifically, post-infection traffic (C&C communication). We have built a system to facilitate network traces’ analysis by combining different existing tools. We collected and classified a large number of benign and malicious network traces. Using this system, we performed an extensive analysis of these traces and found common patterns occurring in them. Based on our analysis, we found that C&C communication can be reliably detected by representing the dependencies of HTTP/HTTPS traffic in a graph and complementing missing links. As a result, C&C traffic stands out as unconnected nodes. We applied different classifiers on the graph and found that a Gradient Boosting classifier can detect C&C traffic with 99% precision and 97% recall.
Justification for IT Investments: Evaluation Methods, Frameworks, and Models

The productivity and profitability paradox in IT investments literature have made the work of IT managers very difficult in justifying for IT investments. Another difficult issue to grapple with by IT managers is how to measure or evaluate intangible benefits. These problems have led to the proposition of many IT evaluation frameworks/models and methods by researchers. This works aims to review a number of these frameworks/models and methods to see the way forward in this business of IT investments justification. About 40 categories/sets of research outputs or articles out of more than 50 articles reviewed were used for this work. The results showed that tangible benefits are not enough to justify for IT investments as they mostly point to corporate benefits which are short term, and that the justification of intangible benefits which are more strategic, must be included to make the justification process complete no matter how difficult it is. Again, no evaluation framework/model with its associated methods of evaluation is a panacea to the evaluation problem; evaluation depends on so many factors, and so is contextual. Also, the firm must factor into the evaluation process its corporate and strategic objectives. Lastly, in most cases, IT evaluation is seen as a must do, and therefore does not require that justification is done.
Experimental Investigation on Combustion, Performance and Emission characteristics of blends of Plastic oil and Biodiesel as a substitute fuels in Diesel Engine

The thirst for fuel is steadily increasing as technology continues to open new areas of exploration. At the same time, the indiscriminate extraction of fossil fuels also may results in depletion of petroleum deposits. Diesel being the main transport fuel in India, finding suitable alternative to diesel in an urgent need. Environmental concerns and limited amount of petroleum resources have caused interests in development of alternative fuels for internal combustion engines. Biodiesel is an alternative to diesel fuel, environment friendly and biodegradable and is produced from either edible or non-edible oils. In this context, waste plastic solid is currently receiving renewed interest. Waste plastic oil is suitable for compression ignition engines and more attention is focused in India because of its potential to generate large-scale employment and relatively lower scale degradation. The present investigation was to study the effect of plastic oil blend with B20 rubber biodiesel and B20 honge biodiesel on four stroke, single cylinder direct Injection diesel engine. Experimental results show that performance characteristics were found to be comparable with diesel. The emission characteristics shows that NOx emission levels are slightly higher and other emissions like CO, HC are compatible with diesel modes of operation. Hence plastic oil can be used as substitute fuel in place of conventional diesel fuel.
Capital Flow Management when Capital Controls Leak

What are the implications of limited capital controls enforcement for the optimal design of capital ow management policies? We address this question in an environment where pecuniary externalities call for prudential capital controls, but nancial regulators lack the ability to enforce them in the \shadow economy. " While regulated agents reduce their risk-taking decisions in response to capital controls, unregulated agents respond by taking more risk, thereby undermining the eectiveness of the controls. We characterize the choice of a planner who sets capital controls optimally, taking into account the leakages arising from limited regulation enforcement. Our ndings indicate that leakages do not necessarily make macro-prudential policy less desirable, and that stabilization gains remain large despite leakages. Finally, there can be signicant redistributive eects across the regulated and unregulated spheres.
( DQS-SRR ) AT 2 . 4 GH Z AND 7 . 4 GH

This paper represents the impedance modelling of metamaterial structure based on Double Quad-Square Split ring Resonator (DQS-SRR). The impedance was modelled for DQS-SRR design structures. This structure simulation works had been done in CST Microwave Studio simulation software while the impedance was modelled by using polynomial type in Matlab for resistance, R, and reactance, X, of the impedance. The modelling of the impedance was based on the length of U-slot arm (Larm) and the width of U-slot arm gap (Wgap) of the DQS-SRR design structure . The impedances were divided into the certain ranges of length and width for dimensions of DQS-SRR so that an accurate impedance modelling was produced. The impedance was modelled for the resonant frequency of 2.4 GHz and 7.4 GHz. This DQS-SRR structure has potential application to improve of pyramidal microwave absorber to for certain frequency range.
Do Teachers Really Want To Change Their Beliefs Related To Education

Teachers’ beliefs represented a special interest, for both educational and psychological researches. The aim of educational domain were aspects related to methods, evaluation, urban-rural schools, experience, the level of teaching (primary, secondary and high school), gender, the type of institution who offered program in teacher training, on the other hand psychological domain paid attention on personality traits, Locus of control, stress, burnout and maybe the most complex aspect, of belief change. The present article is a review of the ninth main models on belief change, proposed by researchers who have studied this domain. Teachers beliefs’ change represented a real interest concurrently with implementation students centred learning strategies and constructivist-oriented reforms. The main aspects that concern all factors involved in educational settings (teacher, administrators, and pupils) are teachers’ resistance to reforms, which hold them in a traditionalist position, and superficial belief change (assimilation), who does not affect the core beliefs of teaching only superficial beliefs. © 2017 Published by Future Academy www.FutureAcademy. org.UK
THE ROLE OF EXTENSIVE MARGIN AND INTENSIVE MARGIN IN KAZAKHSTAN’S EXPORT GROWTH

Decomposition of country’s export gives us to opportunity to understand the sources of exports growth. This paper decomposes Kazakhstan export into four margins extensive, intensive, price and quantity. We analyzed Kazakhstan’s export performance using data at the 6-digit level over period 2004-2013. Kazakhstan export showed good results during this period, but this growth was not sustainable. We employed two methods for decomposition of exports, count method and method of shares. Our investigation showed that intensive margin of exports and quantity component of exports was important contributor of the export growth. The result further pointed out that final goods are more important in exports growth than these goods were a decade ago.
The Quality Criteria of Educational Training “Exploratory Study applied to Hospitality Educational institutes”

Purpose : The present study seeks to draw conclusions upon specific issues concerning the planning, developing, follow-up and evaluating practical training within culinary courses and the role of entitled parties in this process. Originality/value: There is limited literature available specifically focusing on the quality of vocational training in hospitality educational institutes. This paper will explore the educational training quality criteria's required to achieve the intended learning outcomes (ILOs) in the field of hospitality training. Consider this study as a guide to help hospitality educational institutes in planning, developing, follow up and evaluating training sessions. Design/methodology/approach : the study used Delphi technique to explore the quality criteria's of hospitality training suitable to the educational institutes in Egypt. Findings: the study assured the importance of specific criteria's related to the planning, developing, follow up, and evaluation of the training in hospitality education, and recommended these criteria's to be considered by all hospitality educational institutes. Research limitations/implications: This Study is limited to identify the quality criteria's of hospitality training. Further studies are needed to explore to what extent these criteria's are applied in hospitality courses in educational institutes in Egypt.
Demographic change, economic conditions, and subsistence salmon harvests in Alaska’s Arctic-Yukon-Kuskokwim region

This paper addresses broad demographic and economic characteristics of the Arctic-Yukon-Kuskokwim region (AYK) of Alaska. AYK human population growth has generally been moderate over time. Because out-migration regularly exceeds in-migration, especially in the villages, population growth is mainly a product of natality. We anticipate future population growth patterns will be similar. In terms of regional characteristics, the linguistically and geographically distinct populations of the AYK region are similar in that they all have active traditional cultures, a strong reliance on subsistence, and relatively high measures of income poverty. While commercial fishing income is not a large contributor to total regional income, it is an important component of income for households in proximity to commercial fish processors. Many commercial fishermen are also subsistence harvesters, and for many, commercial fishing income provides the means to purchase equipment and other inputs to subsistence activities. This paper examines the relationship between subsistence harvests, population growth, and commercial fishing using a simple least squares regression model. We found that earnings from Kuskokwim commercial salmon fisheries are positively correlated with subsistence harvests while earnings from other commercial fisheries reduce subsistence harvests for a set of lower Kuskokwim River communities. Separately, we found that population growth is not positively correlated with subsistence salmon harvests in the same communities.
Endosymbiosis drives transcriptomic adjustements and genomic adapatations in cnidarians

To decipher inter-partner signaling within the cnidarian-dinoflagellate endosymbiosis, we developed genomic resources (cDNA library and microarrays) for the symbiotic sea anemone Anemonia viridis. Differential gene expression was quantified during thermal stress, with and without UV radiation, between symbiotic vs aposymbiotic specimens and gastroderm vs epidermis tissues. During stress time-course experiments, each stress showed a specific gene expression profile with very little overlap. We show that the major response to thermal stress is rapid (24 hours) but returns to the baseline levels after 2 days. UVR alone has little effect but potentiates thermal stress, as expression of a second set of genes becomes differentially expressed at day 5. Analysis of genes differentially expressed between symbiotic vs bleached and symbiotic vs stressed specimens defined a restricted subset of genes (Kern). Tissue specific expression mapping of Kern genes showed that many were specifically enhanced in the symbiotic cells (gastroderm). Altogether, these data define the Kern genes as major molecular components of the symbiotic interaction. Functional annotations highlighted several pathways including collagen fibrillogenesis, vesicular trafficking, lipid metabolism, calcium signaling, inorganic carbon transfer and cell death, that were modified by stress. Phylogenomic investigations of several Kern genes (calumenin, NPC2, SYM32, dermatopontin, and Rhbg) demonstrate that these issued from cnidarian specific duplication events, with the Kern member being preferentially expressed in the gastroderm and specifically responding to stress. Such host specific genes subfunctionalizations suggest both genomic and transcriptomic adaptations driven by the physiological constraints of endosymbiosis.
Optimization of Shielding- Collimator Parameters for ING-27 Neutron Generator Using MCNP5

Neutron generators are now used in various fields. They produce only fast neutrons; D-D neutron generator produces 2.45 MeV neutrons and D-T produces 14.1 MeV neutrons. In order to optimize shielding-collimator parameters to achieve higher neutron flux at the investigated sample (The signal) with lower neutron and gamma rays flux at the area of the detectors, design iterations are widely used. This work was applied to ROMASHA setup, TANGRA project, FLNP, Joint Institute for Nuclear Research. The studied parameters were; (1) shielding-collimator material, (2) Distance between the shielding-collimator assembly first plate and center of the neutron beam, and (3) thickness of collimator sheets. MCNP5 was used to simulate ROMASHA setup after it was validated on the experimental results of irradiation of Carbon-12 sample for one hour to detect its 4.44 MeV characteristic gamma line. The ratio between the signal and total neutron flux that enters each detector was calculated and plotted, concluding that the optimum shielding-collimator assembly is Tungsten of 5 cm thickness for each plate, and a distance of 2.3 cm. Also, the ratio between the signal and total gamma rays flux was calculated and plotted for each detector, leading to the previous conclusion but the distance was 1 cm.
A Tool Rental Service Scenario - IoT technologies enabling a circular economy business model

Internet of Things (IoT), sensors, wireless networks, cloud computing and big data analytics are technological innovations that have the power to transform traditional businesses. These technologies can enable and accelerate a circular economy on a broader scale. We aim at providing information on how to disrupt current prevailing linear business models by employing digital data and IoT technologies. We give the reader a short overview of IoT technologies affecting the incumbents of industry. We present the current deployment of a tool rental service experiment and develop a scenario anticipating the possible future of the tool rental service. The envisioned tool rental scenario provides understanding on the effects of digital technologies and helps companies in identifying more sustainable and circular