bluuebunny/crossref_metadata_2025_split huggingface dataset:
Producing a Digital Hydrographic Map Aiming at Renewable Energy Potential Mapping of Lesotho
Authors: Pasanisi Francesco , Grauso Sergio , Tebano Carlo , Mahahabisa Mabafokeng , Raliselo Muso 
Published: July 2020

Abstract
Some of the first outcomes of a project aiming at mapping the renewable energy potential in Lesotho are hereby presented. In particular, the present paper deals with the task of the project devoted to produce a digital hydrographic map of Lesotho and an associated geographic database. Different geographical, meteorological and hydrological data were collected in the first steps of the project. The hydrographic network was derived in vector format from a digital elevation model of Lesotho using geoprocessing tools in GIS environment. Results were compared with existing cartography and satellite images. Moreover, a methodology proposed in literature for the assessment of the theoretical maximum hydroelectric producibility at watershed level in Italy was applied to one of the main catchment areas of Lesotho. The activities planned to fulfil the objectives of the project are finally outlined.
Considerations About the Required Volumetric Air Flow Rate Inside an Office Room with One Occupant – Case Study
Authors: Kapalo P. , Domniţa F. , Pop O. , Adamski M. , Voznyak O. 
Published: July 2020

Abstract
In the construction process of modern buildings, the aim is to achieve maximum comfort within minimum energy consumption. One of the ways to achieve this requirement is the accurate determination of the volumetric flow rate of fresh air, necessary to ensure the required indoor air quality. This study begins with the experimental determination of carbon dioxide (CO2) concentration in an office room with one occupant performing three types of activities with different levels of physical intensities. Based on these measurements, a methodology for the precise determination of the volumetric air flow rate is presented. This method was compared with another one that takes into account body parameters and is considered in this study as the most accurate. The required outdoor air flow rate for the experimental room was also determined based on the present legislations of five different countries. Comparing all the studied methods and considering as refence the method based on body parameters, it was found that the accuracy of the values is influenced by the physical intensity of the activity and that most methods generally underestimate the amount of required fresh air.
Effect of Polypropylene Fibre on the Strength of Concrete Incorporating Rice Husk Ash
Authors: Phulpoto Karim Bux , Jhatial Ashfaque Ahmed , Memon Muhammad Jaffar , Sandhu Abdul Razzaque , Sohu Samiullah 
Published: July 2020

Abstract
The increase in Carbon Dioxide (CO2) gas emissions during the production of cement have increased the necessity for the development of eco-friendly sustainable concrete using alternative binders. This research was conducted to study the strength behaviour in terms of compressive and flexural strength of concrete incorporating rice husk ash (RHA) as a supplementary cementitious material. RHA is a potential alternative binder due to its pozzolanic nature but it can partially replace cement to a certain amount, beyond it, the strength decreases making the concrete less viable. Therefore, to strengthen RHA-based eco-friendly concrete, Polypropylene (PP) fibres were used to reinforce concrete. Based on the results, it was observed that 5% RHA achieved higher strength than the control sample, however, a further increase in RHA content resulted in a significant decrease in strength. Concrete with 10% RHA which showed reduced strength was reinforced with PP fibres which resulted in a gain in strength.
Optimum Cost Design of Reinforced Concrete Slabs Using Mouth Brooding Fish Algorithm
Authors: Sedaghat Shayegan Davood , Lork Alireza , Hashemi Seyed Amir Hossein 
Published: July 2020

Abstract
In this article, the optimum design of a reinforced concrete solid slab is presented via the Mouth Brooding Fish (MBF) algorithm that is recently developed. It is based on mouth brooding fish life cycle. This algorithm utilizes the movements of the mouth brooding fish and their children’s struggle for survival as a pattern to find the best possible answer. The cost of the solid slab is considered to be the objective function, and the design is based on the ACI code. The efficiency of this algorithm is compared with Neural Dynamic (ND) and Particle Swarm Optimization (PSO). The numerical results indicate that the MBF algorithm can to construct very promising results and has merits in solving challenging optimization problems.
The ruin problem for a Wiener process with state-dependent jumps
Authors: Lefebvre M. 
Published: July 2020

Abstract
Let X(t) be a jump-diffusion process whose continuous part is a Wiener process, and let T (x) be the first time it leaves the interval (0,b), where x = X(0). The jumps are negative and their sizes depend on the value of X(t). Moreover there can be a jump from X(t) to 0. We transform the integro-differential equation satisfied by the probability p(x) := P[X(T (x)) = 0] into an ordinary differential equation and we solve this equation explicitly in particular cases. We are also interested in the moment-generating function of T (x).
Non-destructive Test Methods for Corrosion Detection in Reinforced Concrete Structures
Authors: Karla Hornbostel , Danner Tobias , Geiker Mette Rica 
Published: July 2020

Abstract
Several inspection methods can be used to assess the corrosion state of steel reinforcement in concrete. Especially for periodical field surveys and monitoring, non-destructive testing (NDT) methods are to be preferred as they do not cause any or very limited damage to the existing concrete. In this paper, the corrosion state of three reinforced concrete beams exposed to marine environment for 25 years was evaluated by measuring three parameters; electrochemical potential, concrete resistivity and corrosion rate. The measurements were performed with commercial devices. It was found that all devices are applicable for field inspections. Among the methods selected for the study, the electrochemical potential measured in a fine grid and analysed statistically offered the best possibility of evaluating the corrosion state; preferably in combination with selected excavations for determination of the level of corrosion.
Bauxite Residue as Supplementary Cementitious Material – Efforts to Reduce the Amount of Soluble Sodium
Authors: Danner Tobias , Justnes Harald 
Published: July 2020

Abstract
This study investigates the feasibility of using bauxite residue (BR) as supplementary cementitious material (SCM) for the cement and concrete industry. It is shown from pastes of BR and calcium hydroxide, that BR is highly pozzolanic in nature. The early hydration of cement pastes with BR is accelerated while long-term strength is reduced probably due to the alkaline nature of BR. To be used as cement replacement material in concrete, attempts have been made to reduce the alkali content of BR, in particular to reduce the chance of alkali-aggregate reactions. Co-calcination of BR with kaolin or washing and cooking of BR with calcium hydroxide or calcium hydroxide and gypsum resulted in considerable reduction of alkali content; up to 75%. At the same time the reactivity of the BR was reduced but still being higher compared to fly ash already used in the cement industry.
Results of national White Stork (Ciconia ciconia) census in Hungary in 2019
Authors: Lovászi Péter , Nagy Károly , Görögh Zoltán 
Published: July 2020

Abstract
A national White Stork (Ciconia ciconia) census was organised in Hungary in 2019. The 14th country-wide nest count was coordinated by MME/BirdLife Hungary, also involving local branches and volunteers of the society and national park directorates.
Altogether 5,018 nests and 2,358 White Stork nest holders without nest material were reported. 89.2% of occupied nests were built on electric poles. Although 80 years ago every third nests were found on trees, in 2019, only 6 were reported at that location. Successful pairs raised 2.62 nestlings on average, breeding success for all breeding pairs was 2.19, which is lower than typical, probably due to chilly and rainy weather during the breeding season. Based on 3,540 reported breeding pairs and former census data, the White Stork population of Hungary is estimated to be 3,860–4,020 pairs in 2019. The size of the population was ca. 15–16 thousand pairs in 1941, which halved by 1958 and decreased to 5 thousand pairs by the late 1960s. For four decades, the population fluctuated between 4,800 and 5,500 pairs but in the last twenty years, the number of breeding pairs slightly decreased in the country. The population decline is stronger in hilly areas of W Hungary, i.e. in Somogy, Vas and Zala counties is about 60%.
Data on the postbreeding migration of marked Romanian Great White Pelicans (Pelecanus onocrotalus Linnaeus, 1758)
Authors: Kiss Botond J. , Alexe Vasile , Doroșencu Alexandru C. , Marinov Mihai E. 
Published: July 2020

Abstract
Between 1931 and 2018 in the Danube Delta, 1,171 Great White Pelican (Pelecanus onocrotalus Linnaeus 1758) were ringed (731 with metal rings, 440 with coloured plastic rings) at breeding sites. The majority of the captured birds were flightless young individuals. From the ringed birds, 25 (2.13%) were reported as recaptured. Most were reported from Israel (28%), and the rest from 8 other countries. Recovery distance varied between 50 and 3,000 km. 19 birds (76%) were reported within half year after ringing, 2 birds (8%) within a year, and further 4 individuals (16%) were reported after a year. With the exception of a single photographed individual, all the others perished: they were shot or fell victims to accidents. These cases suggest high mortality in the young age cohort. Very little knowledge is available about the African wintering grounds; there are only two reports from Egypt and one from Southern Sudan. Traditional ringing yields little information for this species. Considerably more exact data could be expected from satellite tracking, use of other modern locating techniques and use of genetic methods. The ringing of nestlings is only possible if we can apply less aggressive methods then used to date. Besides its scientific value, the intense research on the still numerous Great White Pelican population would be justified by the outstanding faunistic, economic and cultural importance of this species.
The role of reedbeds in secondary habitats during the migration and breeding of reed warblers
Authors: Bozó László 
Published: July 2020

Abstract
The reedbeds provide essential habitat for many Acrocephalus and Locustella species during both breeding and migration periods. The nesting and the migration of these species have been the subject of detailed research over the past half century in the Carpathian Basin. However, these studies have focused primarily on natural habitats and large reedbeds and thus, little is known about the role of smaller habitat fragments in the migration and nesting of these species. During my work, I studied the spring and autumn migration of five passerines in a landscape dominated by agricultural land in Southeast Hungary. Field observations were carried out to survey the populations of different species between 2010–2019. To study their migration, I used the method of bird ringing between 2016–2019 in an oleaster forest and a drainage canal. I was able to determine the migration periods of the species and in autumn, to calculate the time spent in the research area based on the recaptures. In conclusion, reedbeds in secondary habitats play a similar role in the migration of the most common Acrocephalus and Locustella species as in the natural habitats in different regions of the Carpathian Basin. There are differences among species in the timing of migration, the length of time spent here, and the accumulated fat stores. As these species nest in small numbers in the area, primarily individuals from more distant populations occur here during the migration.
Foraging Eurasian Jays (Garrulus glandarius) prefer oaks and acorns in central Europe
Authors: Mitrus Cezary , Szabo Josif 
Published: July 2020

Abstract
The Eurasian Jay (Garrulus glandarius) is considered as the most important factor in the dispersal and spread of oak species. We conducted studies in oak stands in four countries (Poland, Hungary, Romania, Ukraine) in the autumn of 2015 and 2016. To identify the preferences of Jays for both acorns and trees, we compared the size of acorns and tree characteristics between each selected tree and the closest unused oak. We found that acorns from selected oaks were smaller (narrower) than those from unused trees. We found no differences in the characteristics of selected and unused oaks. These results indicate that the size of acorns can be an important indicator determining the choices of foraging birds. The Jays’ preferences for specific trees may influence the composition of oak populations. Trees with certain phenotypic and genomic characteristics may be favoured and dominate in the ecosystem.
A Morphosyntactic Analysis of Patient-Subject Constructions in Chinese
Authors: Wang Changsong , Zheng Mingming 
Published: July 2020

Abstract
The exact nature and derivation of patient-subject constructions (PSC) in Chinese are still at dispute in literature. Based on the restriction of manner adverbial modification and the nonexistence of the manner reading of zenme ‘how’ observed in Chinese PSC, a morphosyntactic analysis has been provided. We argue that the seeming action verb V in PSC is not a real main verb, but a verbal root to be introduced into the derivation after syntax via external morphological merger. The real main verb of PSC in syntax is a covert light verb ∅BEC, which selects a nominal phrase (NP) as its specifier (Spec) and a resultative phrase (RP) as its complement. BECP is further selected by an aspect (Asp) head le. To satisfy the extended projection principle (EPP), the NP at [Spec, BECP] moves to the [Spec, TP] in syntax. After syntax, the resultative (R) head-moves to ∅BEC at the phonological form (PF) to satisfy the phonological requirement of ∅BEC, forming R-∅BEC; then, a bare verbal root merges with R-∅BEC at PF to denote the manner of the change of state. Due to the phonological requirement of le, V-R-∅BEC head-moves to le, producing the right order of PSC. The two elided forms of PSC can be derived similarly. This research suggests that covert light verbs and morphology may play an interactive role in the derivation of some “typical” constructions in Chinese.
Detection of Unmanned Aerial Vehicles Using Computer Vision Methods: A Comparative Analysis
Authors: Hożyń Stanisław , Przybysz Marcin 
Published: July 2020

Abstract
Detection of small objects in the airspace is a crucial task in the military. In the era of today’s unmanned aerial vehicles (UAVs) technology, many military units are exposed to recognition and observation through flying objects. They are often equipped with optoelectronic warhead making a way to collect essential and secret data of the military unit. Modern technical solutions make it possible to implement some methods facilitating detection of flying objects. A lot of them utilize computer vision techniques based on image processing algorithm. Therefore, in this article, we present an analysis of the most promising algorithm for detection of small flying objects.
A Concept of BLDC Drive Model Containing Battery Cell Model
Authors: Brodzicki Michał , Chrabąszcz Przemysław 
Published: July 2020

Abstract
The paper presents a concept of overall BLDC drive model. Target model will be improved with a functional model of battery cell, which is commonly used as a power supply for the drive. The paper shows previous achievements in form of a functional BLDC motor model. Also, simulation results are presented. These are the partial results, that aimed to verify the basic model’s correctness as a basis of future developments. The procedure of power source selection presented in the article is vital to specify the technical parameters of modelled battery cell.
The Influence of Income on the Consumption Expenditures
Authors: Hošková Elena , Richter Martin , Zentková Iveta 
Published: July 2020

Abstract
The contribution aims to identify the influence of income on Slovak household expenditures. Analyses are querying from the household income and expenditures data in the Slovak Republic during the period 2004–2018. The data source is the Statistical Office of The Slovak Republic. Descriptive statistics and regression analysis are used. The analysis of the goods and services expenditures reveals the major share of the expenditures is expended for the non-durable goods. The non-durable goods expenditures of the pensioners are 72% of their total consumption expenditures. Expenditures of employees, self-employees and other households for the non-durable goods present more than a half of their total expenditures. The share of services expenditures is also considerable. It is varying above 30% for all households kinds. The income influence on the household expenditures is analyzed using Engel’s expenditures functions which are used as the basis for the income elasticities of household expenditures. The analysis results are pointing to the fact that the less elastic on the income change is the reaction of the Slovak household expenditures on non-durable goods. A significant reaction on the income change is observed in household durable goods expenditures.
Multivariate Model for the Usage of Renewable Energies in a Rural Area
Authors: Nagy Bernadett , Kovács Bernadett Horváthné , Csuvár Ádám , Titov Alexander 
Published: July 2020

Abstract
Within Hungary, the Koppányvölgye rural area was chosen due to its unique natural circumstances with its broad green nature, concerning the inhabitants’ habit for the usage and knowledge of renewable energy for residential heating. Through quota-based sampling method we collected the demographic, social and economic variables to examine their level of influence on wood for residential heating usage. We received the Likert scale values through the questionnaire, which had to be recoded for the binomial logistic regression model that we chose to use because of the indicator variable’s trait, and in aim to examine the explanatory variables’ significance. As a result, for the wood indicator variable, the age of the respondent turned out to be a significant variable, the higher age compared to lower age is a chance decreasing category for wood usage, employed compared to unemployed increased the likelihood, thereby rejected the energy ladder phenomenon, as well as more people in one household increased the chance for wood usage. The higher education, environmental awareness and insulation level of a house turned out to be non-significant for wood usage. Therefore, we strengthened those statements from the earlier studies, that in this rural region, the change of the residential heating technology is more likely to be supply driven than demand driven.
Does Working Capital Management Affect Profitability of Ghanaian Manufacturing Firms?
Authors: Prempeh Kwadwo Boateng , Peprah-Amankona Godfred 
Published: July 2020

Abstract
This paper analyses the link between working capital management and profitability of firms in the context of developing economies. A balanced panel consisting of eleven (11) manufacturing firms listed on the Ghana Stock Exchange covering the period of 2011-2017 was used. The link between working capital management and profitability was examined using dynamic panel regression (Arellano-Bond Estimation) technique. The study revealed that there is a significant positive linear relationship between working capital management and firms’ profitability. The findings also reveal the existence of a concave quadratic relationship between working capital management and firms’ profitability. There is an optimal level at which working capital management maximises firm’s profitability, therefore, managers need to ensure that they operate within the limits of the optimal level by implementing an effective and efficient working capital management policy. The study concludes that, the practice of an aggressive working capital management policy maximises a firm’s profitability.
Assessment of Women’s Early-stage Entrepreneurial Activity in 2018
Authors: Pinkovetskaia Iuliia S. , Gromova Tatiana V. , Nikitina Irina N. 
Published: July 2020

Abstract
The analysis of the regularities characterizing the existing rate of female early-stage entrepreneurial activity, as well as the identification of reserves for female entrepreneurship growth is relevant nowadays. The purpose of the work is to assess the rates of entrepreneurial activity of women, their motivational preferences, and comparative analysis of female and male early-stage entrepreneurial activities. The study is based on the economic analysis of the data on 48 countries, presented in the Global Entrepreneurship Monitor report for 2018. Normal distribution density functions are used in the modeling process. The research reveals features of female entrepreneurship and the barriers to its development. The paper defines countries with high and low values of the considered indicators. The study estimates the existing rates of opportunity and necessity motivation of female entrepreneurs, presents the analysis of the ratio of female to male participation in early-stage entrepreneurial activity, and proves the hypothesis on substantial differentiation of these indicators across countries. The obtained knowledge can be used in future scientific research, in the educational process of bachelors and masters training. The scientific novelty lies in the study of the distribution of indicators characterizing female entrepreneurs’ motivation and the existing gender gap in early-stage entrepreneurship. The study proposes new methods and tools for the analysis and presents a comparative analysis of the development of female and male early-stage entrepreneurship.
Interrelation of Capital Markets in the Context of Increased Audit Oversight in the European Union – Evidence on Third-Country Auditors
Authors: Mocanu Mihaela , Ionescu Octavian Iancu 
Published: July 2020

Abstract
We identified a notable lack of academic literature on the issue of third-country auditors and the main contribution of our article is to address this gap. This research builds on adjacent audit oversight and capital markets literature and we extend this literature by providing evidence on third-country auditors. Specifically, we test the relationship between market capitalization and number of foreign IPOs of listed companies in representative EU countries (on one hand) and the existence of third-country auditors in those respective countries (on the other hand). Our research was performed in the second half of 2018 and is based on the latest data available. We have found that there are about 200 third-country auditors present in the public registers of audit oversight bodies in 11 EU countries. According to our network analysis, only European countries with a developed capital market have attracted third-country auditors. Most of the relationships of these developed EU capital markets are nurtured with non-EU capital markets that are at the same level of development (e.g. USA, Switzerland, Canada, Israel, and Australia). Our research hypotheses were validated: (1) the higher the market capitalization of a EU country, the higher the likelihood for the registration of third-country auditors; (2) the higher the number of foreign IPOs relative to the total IPOs on the stock exchange market, the higher the likelihood for the registration of third-country auditors.