Digital Commons Network^™

Some Issues In The Testing Of Computer Simulation Models, David J. Murray-Smith

UBT International Conference

The testing of simulation models has much in common with testing processes in other types of application involving software development. However, there are also important differences associated with the fact that simulation model testing involves two distinct aspects, which are known as verification and validation. Model validation is concerned with investigation of modelling errors and model limitations while verification involves checking that the simulation program is an accurate representation of the mathematical and logical structure of the underlying model. Success in model validation depends upon the availability of detailed information about all aspects of the system being modelled. It also …

Modeling Of Flexural Strength Of Fiber Reinforced Concretes Containing Silica Fume Or Fly Ash By Gep, Mustafa Saridemir, Besian Sinani

UBT International Conference

In this paper, a mathematical equation based on the gene expression programming (GEP) model has been developed to predict the flexural strength (ffs) of steel fiber reinforced concretes (SFRCs) containing silica fume (SF) or fly ash (FA). In order to obtain a mathematical equation of this model, the training, testing and validation sets using the experimental results for 175 specimens produced with 118 different mixtures were gathered from different literatures. The data used in the input variables of GEP model are arranged in a format of eleven input parameters that cover the age of specimen, the amounts of concrete mixtures …

Multiple Correspondence Analysis Method For Evaluating The Standard Of Living. Case Study Albania, Evgjeni Xhafaj, Daniela Halidini, Neime Gjikaj

UBT International Conference

The main purpose of this study is to see the implementation of the multiply statistical method MCA (Multiple Correspondence Analysis) in large databases. Objectives of this study are to find the connections between qualitative variables categorized, concretely in our paper the connections between socioeconomic indicators and the standard of living. Otherwise this is called the concept of the multidimensional poverty. Different variables are being extracted like indicators that have a connection with the measuring of the multidimensional poverty. The data were obtained from the survey of measuring the life standard (LSMS) in 2012, which includes in the study about 6671 …

Application Of Dijkstra Alegorithm To Define The Lower Price In The Distribution Network Of Suppling, Bukurie Imeri Jusufi, Azir Jusufi, Xhevair Beqiri

UBT International Conference

In this paper-work beside the review of theories of graphs , Dijkstra alegorithm for finding the shortest way , here we can present the application of Dijkstra alegorithm how to find the lowest price of the supplying for a costumer in the network distributions, presented with an example. Considering that from manufacturer to the last costumer the price variates, we ask: from whom distributions we can supply the same product and pay the lower price but the quality will be same?

Some Propositions About Inverse Semigroups, Osman Hysa, Arben Reka

UBT International Conference

The inverse semigroups are semigroups studied by many algebraists. In this paper we will formulate and prove some other propositions on these semigroups. So we will prove two propositions concerning the closure of a subsemigroup of a given inverse semigroup S, within the meaning introduced by Schein in 1962, two propositions on the group congruence on a normal subsemigroup of the inverse semigroup S, and a proposition about closed subsemigroup assertion of an inverse semigroup S.

Generalization Of Strong Convergence Theorem In Cat(0) Spaces, Alba Troci

UBT International Conference

The aim of this paper is to give the generalization condition of T-Ciric quasi contractive mapping. Also to study the generalization of strong convergence theorem of modified S-iteration process for Ciric quasi contractive operator in the framework of CAT(0) spaces based on new generalized condition for T-Ciric quasi contractive mapping. Our results extend and generalize many known results from the previous work given in the existing literature (see [1, 6]).

Traditional Mathematics And New Methods Of Teaching Through Programming Together With Students, Robert Kosova, Teuta Thanasi, Lindita Mukli, Loreta Nakuçi Pëllumbi

UBT International Conference

We are used to the traditional methods of teaching mathematics. The textbook, the blackboard and a chalk have been for centuries a wonderful part of teaching. And, they always will be. Traditional teaching methods of mathematics are a wonderful legacy of our educational system that have educated generations of teachers, engineers, administrators, managers, leaders, and economists. American universities websites, the video- lectures of the best professors of well-known disciplines such as statistics, operational research, number theory, algebra, game theory, show impressing large blackboards, all over the auditor's walls. We always will need and admire traditional mathematics. But, beyond the lessons, …

Models For Reducing Power Consumption In Cpld And Fpga Devices, Marsida Ibro, Luan Karçanaj

UBT International Conference

Usage of programmable logic devices PLD has increased in the latest years because of the ability to quickly implement complex types of electronic systems while reducing cost and time of synthesis. This technology enables dynamic reconfiguration of different applications according to specific requirements. Also, power consumption and its loss is becoming an increasingly important requirement in the design of systems for portable applications fed by batteries.

Other factors to be taken into account in the consumption of power are elements that are used for manufacturing, packaging, and cooling systems. Power consumption must be taken into consideration especially for wireless applications …

Climatic Conditions And Other Resources For Kosovo Transition To "Ses" And His Vision, Vehebi Sofiu

UBT International Conference

Developing modern technologies have made possible finding of alternative opportunities for exploitation of natural resources in order to meet the energy demands. Renewable energy is a good opportunity of meeting the environmental requirements and functioning of the applicable techniques system with an efficacy and efficiency using. Natural resources owned by Kosovo, with the main resource of coal as the only opportunity for energy generation, which is also the biggest polluter in the country has increased the requirements of continuous research, which of the types of energy (alternative energy) is likely optimal to be put into operation. Measurements, studies and ongoing …

Physical-Chemical Characteristics Of The Substances Before And After The Discharge Of Factories Of The Detergents That Can Cause Increase Of The Degree Of The Eutrophication Of Surface Waters In The City Of Prizren, Sami Gashi, Ymerr Bajmaku, Petrit Drini

UBT International Conference

Industrial discharge waters, especially those of producers of detergents are one of the main polluters of surface waters in Prizren. The greatest polluters are: vehicle laundry and laundry of mega clothes, as well as factories producing liquid detergents, as well as powder ones. Concentration of active substances and perborate polyphosphate detergents also increase the wastewater from households. Therefore, we can say that the washing detergents, cleaning, are not safe for the environment, all of those are in varying degrees dangerous pollutants. Their presence represents the most acute problem of water supply in the city of Prizren. In this paper are …

Extraction Of Valuable Metals From Trepca Landfilled Lead Smelting Slags With Welc Process, Afrim Osmani, Musa Rizaj

UBT International Conference

The landfilled slags obtained over the years from reduction smelting of lead agglomerates at the Trepca lead smelter contain numerous components as metal oxides and sulphides as well as metals in elementary state. Among others they contain various forms of Pb, Zn, Cu, Ag, Ge, Tl, In, As, Bi, Sb. These are valuable elements that may turn these slags to a new important “raw material” for their extraction.

Based on the chemical composition results of 354 samples and mineralogical analysis then the quantity of these landfilled slag, which is estimated to be about 3 million tons it was concluded that …

Fuzzy Logic Controlofgantry Crane System, Betim Shabani

UBT International Conference

The use of gantry crane systems for transporting payload is very common in industrial application. However, moving the payload using the crane is not an easy task especially when strict specifications on the swing angle and on the transfer time need to be satisfied. To overcome this problem, an intelligent gantry crane system had been introduced. Fuzzy logic controllers were adopted, designed and implemented for controlling payload position as well as the swing angle of the gantry crane. Fuzzy logic defines rules that determine the behavior of the system using word descriptions instead of mathematical equations also fuzzy logic control …

Why Modeling Complex Dynamic Systems Using Fuzzy Cognitive Maps?, Peter P. Groumpos

UBT International Conference

The difficult problem of modeling Complex Dynamic Systems (CDS) is carefully reviewed. Main characteristics of CDS are considered and analyzed. Today’s mathematical models and approaches cannot provide satisfactory answers to the challenging problems of the society. The key problem of complex dynamic systems and control theory consists in the development of methods of qualitative analysis of the dynamics and behavior of such systems and in the construction of efficient control algorithms for their efficient operation. The purpose of control to bring the system to a point of its phase space which corresponds to maximal or minimal value of the chosen …

Security Analysis Of Wireless Ban In E-Health, Romina Muka, Sule Yildrim-Yayilgan, Kozeta Sevrani

UBT International Conference

The Wireless Body Area Network (WBAN) has gained popularity as a new technology for e-Health, and is considered as one of the key research areas in computer science and healthcare applications. WBAN collects patients’ data, monitors constantly their physiological parameters, using small implantable or wearable sensors, and communicates these data using wireless communication techniques in short range. WBAN is playing a huge role in improving the quality of healthcare. Still, due to sensitive and concurrent nature of e-Heath systems, current research has showed that designers must take into considerations the security and privacy protection of the data collected by a …

Analysis Of The Mobile Market In 2014 In Macedonia, Recommendations For Better Development And Improved Quality Of Mobile Services, Arsov Boris, Trajkovski Vasko

UBT International Conference

In order to regulate the electronic communications market in a systematic way, the Agency for Electronic Communications, as a regulatory body in the field of electronic communications, has strongly set issues and targets to be achieved. The Agency has guidelines how to achieve the issues of a competitive market where conditions for using the electronic communications services with best quality and best prices are going to be created for the end users.

Descriptive Analysis Of Characteristics: A Case Study Of A Phone Call Network Graph, Orgeta Gjermëni, Miftar Ramosaco

UBT International Conference

Nowadays, systematic collection of data has necessitated a detailed statistical analysis as a necessary tool to make a mathematical characterization of them with the purpose of gathering information about the present or the future. Our aim in this paper is to analyze a landline phone call network graph from the perspective of descriptive analysis. We explore the characteristics and structural properties of the network graph constructed using an anonymous collection of data gathered from a Call Data Records of a telecommunication operator center located in south of Albania. The R statistical computing platform is used for network graph analysis.

Circuit Design For Green Communications – Methods, Tools And Examples, Galia Marinova, Zdravka Tchobanova

UBT International Conference

The paper makes an overview of the existing methods applied for circuit design with low power consumption objective. It considers Computer-Aided Design (CAD) tools and modules for power consumption estimation at the design stage. For analog and mixed analog-digital circuit design, the power estimation options in ORCAD Design Suit with PSpice and Analog Filter Wizard are studied. For digital communication systems the study covers the power estimation, analysis and optimization in ISE and Vivado systems, Xilinx Power Estimator (XPE) tool and spreadsheet, the XPower Analyzer, as well as similar tools proposed by ALTERA - PowerPlay Early Power Estimator and QUARTUS …

A Summary Of Classification And Regression Tree With Application, Adem Meta

UBT International Conference

Classification and regression tree (CART) is a non-parametric methodology that was introduced first by Breiman and colleagues in 1984. CART is a technique which divides populations into meaningful subgroups that allows the identification of groups of interest. CART as a classification method constructs decision trees. Depending on information that is available about the dataset, a classification tree or a regression tree can be constructed. The first part of this paper describes the fundamental principles of tree construction, pruning procedure and different splitting algorithms. The second part of the paper answers the questions why or why not the CART method should …

An Overview For Chaos Fractals And Applications, Adem Meta

UBT International Conference

The goal of this paper is to present, a summary of concepts from the Chaos and Fractals theory and some basic theory to understand how the Chaos and Fractal theory fundamentals work, for more to explain how is related the chaos theory with mathematics application. This paper will provide examples of how this new approach could be applied and how is chaos related to the Statistics. In this paper, I am going to introduce the concept of “fractal” dimension and some examples to calculate the dimensions. At the center of fractals is Mandelbrot set, otherwise is called the hard of …

Development Of Airships Stratospheric Platform Systems (Sps), Dimov Stojce Ilcev

UBT International Conference

In this paper are introduced airships as part of new Stratospheric Platform System (SPS) in function of space communications. Airships are the latest space techniques with advanced technology for fixed and all mobile applications, including military and rural solutions. This SPS employ unmanned or manned, solar or fuel energy airships or aircraft carrying payloads with transponders and antennas. The airship SPS can be considered as a novel solution for providing communication and navigation services. The research and development of airships for putting the system in to practical use is ongoing in some countries. The remote controlled-solar powered airships or aircraft …

Improving Non-Native English Students’ Communicative Competence And Collaboration Skills Through Virtual Simulations, Alisa Sadiku

UBT International Conference

Knowing how to communicate in the target language is the main goal of most language learners. Furthermore, it is very challenging for teachers to bring real world communication experiences in classroom settings where English is not the native language. Hence, in this paper I explore the role of virtual simulations in promoting communicational and collaboration opportunities to non-native speakers of English. In my research, I describe how virtual worlds improve communicative and collaborative skills of non-native speakers of English. Moreover, I investigate how virtual worlds can create a learner centered environment where students take control of their own language production. …

Generalization Of Strong Convergence Theorem In Cat(0) Spaces, Alba Troci

UBT International Conference

The aim of this paper is to give the generalization condition of T-Ciric quasi contractive mapping. Also to study the generalization of strong convergence theorem of modified S-iteration process for Ciric quasi contractive operator in the framework of CAT(0) spaces based on new generalized condition for T-Ciric quasi contractive mapping. Our results extend and generalize many known results from the previous work given in the existing literature (see [1,6]).

Web Application Penetration Testing, Besnik Qehaja, Gazmend Krasniqi, Ardian Bajraliu, Amet Shabani

UBT International Conference

Safety of information is needed either in private sector or business for protection from market with competitive secrets or only for privacy. Advantages of internet and web applications is that they are accessible from everyone, but in business word data should be safe, reliable accessible. Although these are not new problems and always had different solutions to these problems, we always need to be on the cutting edge with new attacks that appear every day and to try to achieve a greater security. In this paper we present some of the most dangerous forms of risk which are risking web …

Risk Assessment In The Implementation Of Construction Projects In Developing Countries, Bashkim Alili

UBT International Conference

The construction industry plays an important role in the economic growth and the socio-economic development, which are particularly important for the developing countries. The current general situation in the construction of buildings in a country like ours is that the product of a construction company is mainly characterized by the poor quality of work, exceeding the costs and the time for realization. These characteristics exist as many risks are taken into account very little in the project planning and realization or not taken into account at all. Therefore, it is necessary that the managing of the risks for improvement of …

Quarterly Meeting Agenda & Packet, Wku Board Of Regents

Board of Regents Documents

Meeting to discuss faculty emeriti; resolutions in honor of Melissa Dennison and Laurence Zielke; memoranda of understanding between WKU and the WKU Foundation and the College Heights Foundation; personnel actions; elections of officers; and presidential search.

Two Decades Of Progress For Minorities In Aviation, David C. Ison, Rene Herron, Linda Weiland

Journal of Aviation Technology and Engineering

Diversity within the science, technology, engineering, and mathematics (STEM) fields has historically lagged behind that which is found in other vocational paths. Aviation has also suffered poor diversity with virtually no participation among professional pilots. With both the literature specifying the benefits of diversity in the aviation workplace and potential shortages of pilots looming, it is in the interest of aerospace stakeholders to have access to the most comprehensively diverse employee pool possible. The purpose of this research was to evaluate the trends in participation by minorities who completed professional pilot education programs in the United States. Data concerning the …

Classroom Engagement Mediates The Relationship Between Internalizing Behavior And Academic Outcomes In Head Start Children, Krystal M. Bichay

Open Access Theses

Internalizing behavior in preschool children from low-income households is consistently negatively associated with academic outcomes, specifically in language/literacy and mathematics. To understand these associations, it is important to identify different mechanisms that might explain the relationship between internalizing behavior and academic outcomes. Classroom engagement is a domain-general skill that may explain this relationship. The purpose of the current study was to examine whether classroom engagement across different contexts--including peers, teachers, and tasks--mediated the relationship between internalizing behavior at the beginning of the year and language/literacy and mathematics skills at the end of the year. Structural equation modeling was used to …

The Firece Green Fire: Vol. 7 Issue 8, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Covering Arrays And Fault Detection, Brooke Lefevre, Emily Anderson

Fall Interdisciplinary Research Symposium

Given their several applications, covering arrays have become a topic of significance over the last twenty years in both the mathematical and computer science fields. A covering array is a N × k array with strength t, k rows of length N, entries from the set {0, 1, ..., v − 1}, and all v^t possible combinations occur between any t columns, where N,k,t, and v are positive integers. The focus of our research was to explore the different constructions of strength two and strength three covering arrays, to find better covering arrays (i.e. more cost and time efficient covering …

Synthesis And Characterization Of A 7-Nitrobenz-2-Oxa-1,3-Diazol-4-Yl (Nbd)-Containing Amino Acid, Dana Ann Winkle

Fall Interdisciplinary Research Symposium

Unnatural fluorescent amino acids are important tools that allow biochemists to visualize proteins in living cells. The addition of an unnatural fluorescent amino acid makes any normally transparent proteins to glow in the dark. The goal of this research is to synthesize the unnatural fluorescent amino acids shown in the reaction equation below (protected amino acid: R = t-Boc; deprotected amino acid: R = H). We have LC-MS data supporting the formation of the deprotected amino acid (m/z = 269.13 (observed); m/z = 269.08 (predicted)).