bluuebunny/crossref_metadata_2025 huggingface dataset:
La tumba colectiva de El Hundido (Monasterio de Rodilla, Burgos) y su ritual funerario durante el Neolítico Final y el Calcolítico
Authors: Alonso Fernández Carmen
Published: July 2015

Las manifestaciones funerarias documentadas en El Hundido pertenecientes al Neolítico Final y Calcolítico aportan interesantes novedades al conocimiento de los rituales funerarios del inicio de la Edad de los Metales en la Península Ibérica y de las conexiones culturales entre la Meseta y la cuenca alta y media del Valle del Ebro. La tumba colectiva, que acogió a casi un centenar de individuos, es un excepcional ejemplo de monumento funerario tanto por su estructura como por el complejo ritual en ella practicado, que culminó con su destrucción premeditada mediante cremación.
La mujer en el registro funerario campaniforme y su reconocimiento social
Authors: Liesau Corina , Blasco Concepción , Ríos Patricia , Flores Raúl
Published: July 2015

El trabajo analiza las tumbas campaniformes con inhumaciones femeninas de tres yacimientos próximos entre sí localizados en la región de Madrid, destacando su presencia en unos contextos que tradicionalmente se han considerado básicamente masculinos. Se registra también la variabilidad de estos contextos, en sus ajuares y en los rituales de inhumación, sean individuales o colectivos y en posiciones primarias o secundarias. Así mismo, se revisan sus asociaciones a individuos masculinos adultos y /o a infantiles, y se discute la asociación de mujeres en tumbas relevantes con puñales. Aunque la muestra es cuantitativamente insuficiente, la variedad del registro nos permite, al menos, desmontar ciertas afirmaciones que se han venido repitiendo sin ningún apoyo empírico sobre la rotunda superioridad numérica de tumbas campaniformes con inhumaciones masculinas. Pero más allá de la recopilación de estos datos es importante reflexionar sobre el porqué de la menor presencia de mujeres con respecto a los hombres en las manifestaciones funerarias de los grupos campaniformes cuando en las tumbas coetáneas no campaniformes es precisamente la mujer la que suele estar mejor representada.
La mina de José Martín Palacios-Doña Eva (Baños de la Encina, Jaén): la primera explotación minera de la Edad del Bronce documentada en el sureste de la Península Ibérica
Authors: Arboledas Martínez Luis , Alarcón García Eva , Contreras Cortés Francisco , Moreno Onorato Auxilio , Padilla Fernández Juan Jesús
Published: July 2015

Se presentan los resultados de la excavación arqueológica en la mina antigua de José Martín Palacios/Doña Eva (Baños de la Encina). Los resultados confirman y corroboran las hipótesis, planteadas tras los trabajos de campo de 2003 en la cuenca del Rumblar (Jaén), de que la mina tuvo, al menos, dos periodos de explotación: uno en la Prehistoria Reciente (Edad del Bronce) y otro en época romana. Hasta el momento, la mina es la primera del sureste de la Península Ibérica excavada y datada en la Edad del Bronce por carbono 14 y por el material cerámico recuperado. Además se han hallado restos del proceso de reducción metalúrgica (escoria y un fragmento de vasija horno), constatado sólo en tres minas peninsulares más.
La Edad del Bronce Final en Alcáçova de Santarém (Portugal)
Authors: Arruda Ana Margarida , De Sousa Elisa
Published: July 2015

Durante los trabajos de campo, realizados en el área del restaurante del Jardim das Portas do Sol, se documentaron, por primera vez en Alcáçova de Santarém, niveles conservados del final de la Edad del Bronce, inmediatamente infrapuestos a los de la Edad del Hierro. Su excavación permitió recoger un conjunto de materiales cerámicos que incorpora varios fragmentos decorados por impresión e incisión, que pueden ser fácilmente relacionados con el universo cultural de Cogotas 1. Las decoraciones bruñidas con surcos en la superficie interna y con franjas al exterior son mucho menos frecuentes. El repertorio formal no difiere del conocido para el Bronce Final del centro y sur de la Península Ibérica. Los datos permiten proponer una cronologia del inicio del 1 milenio a.n.e. (siglo IX) para esta ocupación.
Toward a new mechanics based on discontinuous quantum motion: Why objects travel in straight lines and time moves in one direction
Authors: Ian Epstein Harry
Published: July 2015

A new mechanics is developed, extending analytical mechanics by drawing parallels with statistical mechanics. The approach developed replaces the concept of a many-particle system in favor of a “many-observer system” with respect to a single particle in an isotropic and
homogeneous universe. Motion is described using the discontinuous quantum motion hypothesis: Space and time changes occur in an alternate and independent fashion. A configuration space is constructed consisting of relative displacements between the particle in question and each “observer.”
The results include a description of mass and momentum (analogous to state functions), and the derivation of Einstein's relativistic energy equation (analogous to an equation of state for an individual particle based on its displacement relationships with respect to all other observers). Assumptions
of three spatial dimensions and rectilinear motion will not be a priori but shown as emergent. If rectilinear motion is emergent, then I suggest that the arrow of time could be based at a microscopic level. Parallels with Bohmian mechanics are discussed.
Spectral redshift does not imply an accelerating expansion of the universe
Authors: Laskaroudis Dimitrios
Published: July 2015

Spectra received from faraway heavenly objects display a redshift. In this paper, it is shown that there is a moment in time tx at which time the red shift has its minimum value. This moment is different for every object and depends on the distance of the emission from the
gravity center of the object. So from the time of the creation of the object and up until the time tx, the red shift is decreasing and from that moment on it is increasing while the object, due to the expansion of the universe, continues to move away with decreasing speed. Due to
the change of the red shift from decreasing to increasing, it is possible to observe faraway supernovas with a brightness that is less than what is expected. This observation leads to the erroneous conclusion that the universe is expanding with acceleration. Finally, an explanation is given
to the fact that the number of quasars is decreasing in time.
Project Management in Portuguese Metalworking Industry
Authors: Pinto Ricardo , Dominguez Caroline
Published: July 2015

Project management is increasingly considered a powerful tool to tackle the challenges of businesses in a globalized economy, where the need for innovation is decisive. At the same time it has emerged as a field of knowledge which has been expanding and studied under various perspectives. In this chapter the authors aim to contribute to the knowledge on project management practices in the manufacturing sector. The results presented here characterize project management practices in the Portuguese metalworking industrial sector. Data analysis from thirty companies show that risk and integration areas are often overlooked in project management and need to be promoted.
GSSP – A Generic Semantic Search Platform
Authors: Paiva Sara , Ramos-Cabrer Manuel , Gil-Solla Alberto
Published: July 2015

Semantic search has been rapidly growing as a way to improve search results. The meaning of the input expression has revealed to produce better results than the traditional keyword appearance. Regarding search engines, there are currently several proposals but all of them are already implemented to a specific goal. We find important to develop a generic semantic search system so it rapidly be adapted to any system and domain that has search needs. This work introduces GSSP, a generic semantic search platform proposal. We present the platform and the several steps that need to be followed in order for the platform to be used. We also provide the ongoing work that is being done to apply GSSP to a Quality Management System.
Enhancing the Correctness of BPMN Models
Authors: Correia Anacleto , Brito e Abreu Fernando
Published: July 2015

While some of the OMG's metamodels include a formal specification of well-formedness rules, using OCL, the BPMN metamodel specification only includes those rules in natural language. Although several BPMN tools claim to support, at least partly, the OMG's BPMN specification, we found that the mainstream of BPMN tools do not enforce most of the prescribed BPMN rules. Furthermore, the verification of BPMN process models publicly available showed that a relevant percentage of those BPMN process models fail in complying with the well-formedness rules of the BPMN specification. The enforcement of process model's correctness is relevant for the sake of better quality of process modeling and to attain models amenable of being enacted. In this chapter we propose supplement the BPMN metamodel with well-formedness rules expressed as OCL invariants in order to enforce BPMN models' correctness.
Sustainable Service-Strategic Perspectives
Authors: Bullen Guy
Published: July 2015

This chapter provides a strategic perspective on “Green ICT”, or “Sustainable Service”. It argues that strategy and sustainability are inextricably linked, and that a company that does not build sustainability into the heart of its strategy is a company that will not be sustainable in the unstable world of climate change and scarce resources. It proposes that ICT Service Providers not only become sustainable themselves, but also provide innovative services that can open up opportunities for companies in all industries to develop and implement their strategic sustainability agenda through the use of ICT. It defines five key aspects of a sustainable organisation: beyond reducing carbon emissions and recycling, a sustainable company, in both senses of the word, also needs to become antifragile, transparent and fundamentally social (rather than just socially conscious). For each aspect, it provides example of how this has, or could be done. The author concludes that unless business and governments react urgently and comprehensively in each of these five aspects, there may not be a planet to do business on in our children's lifetime.
An Agent-Based Model for Awareness-Based Sustainability
Authors: Sissa Giovanna , Damiani Ernesto
Published: July 2015

This chapter discusses the effects of social interaction on collective behavior regarding the reduction of limited-resource consumption. Our working hypothesis is that key societal and psychological mechanisms leading to sustainable lifestyles can be enabled by ICT tools. We envision tools supporting social norms, i.e. rules governing an individual's by social sanctions that encourage sustainable behavior on the part of user and consumers. As enabling technology we identify smart metering systems that allows users to compare their consumption patterns with the ones of other consumers, as well as to dynamically re-define and share their personal reduction goals. We present an Agent-Based Model (ABM) to explore the role of awareness in the consumption of a scarce resource. Our agents represent households that use a resource – e.g. energy or water – whose consumption has to be reduced. Agents influence each other; such influence improves their awareness that, in turn, impacts on resource consumption.
Integrating Web 2.0 and RESTful Web Services in Enterprise Grids
Authors: Hassan Qusay F.
Published: July 2015

The integration of service-oriented architecture (SOA) and grid computing has been gaining momentum since the early 2000s. Most of the SOA-based grid implementations have been created using the lingua franca of the web services, namely SOAP, XML-formatted, message-based services. Although this technology provides advanced features such as security, transactions, reliability and workflow, these features are not always used in grid implementations. Adding these sophisticated features to the technology stack when they are not needed or used makes the implementations difficult and tedious for implementers. Web 2.0 and REST offer a set of techniques and tools that results in a paradigm shift in the web and enterprise applications. This chapter discusses the integration of Web 2.0 and RESTful web services into grid implementations. The suggested techniques and technologies alongside the proposed architecture will be discussed. Moreover, this chapter will explain how this model is useful and greener.
Using MIS for Strategic Planning and Management Control in Tourism Industries
Authors: Amoako George Kofi , Adjaison Geoffrey Kwasi , Kumi Desmond Kwadjo , Asamoah Fredrick Kwame
Published: July 2015

This chapter surveys the literatures on managerial innovation and provides a wide and structural view of management system philosophy and e-tourism. It gives a historical perspective of MIS (Management Information System) and the related concepts like Decision Support Systems, Executive Support Systems, Business Process Automation, Management Control Systems, Global Distribution Systems, Transaction Processing Systems, etc. Learning from the case of auto industry like AutoXchange, this chapter seeks for the strategic use of information and communication technology in tourism. Here MIS includes modern information technology like data mining, wireless devices in the era of “Travel, Tourism and Technology”. The above mentioned systems are used in big businesses, but this chapter also explores the effect of such technologies on small businesses. Finally, this chapter proposes to apply e-CRM (Electronic Customer Relations Management) to the tourism industry and, at the same time, assess the challenges and limitations such an application would entail.
Business Opportunity and Social Responsibility
Authors: Ivanović Aleksandar M.
Published: July 2015

Since Internet is the most abundant, accepted, comprising, reachable, and used source of information, it is the basis for the development of (the first time in scientific literature defined) accessible e-tourism (for all), as the application and implementation of e-commerce solutions, digital, web, mobile, and other ICTs in the function of providing (web and universal) accessibility in tourism, travel, hospitality, and catering industry, especially for the people with (permanent or temporary) special access needs (persons with disabilities, seniors, people with small children, or carrying heavy luggage, or being big or small in size or stature). It has been proven to be an emerging business opportunity. The (multiaccessible) Barcelona (Access website) and other case studies have shown that accessibility details have to be part of the website of tourist facility, enterprise, or destination, clearly visible or easy to find and use – particularly the (hotel or visitor attraction) search engine, producing complete, consistent, and correct information.
The Evolution of the (Hidden) Web and its Hidden Data
Authors: Díaz Manuel Álvarez , Álvarez Víctor Manuel Prieto , Seijo Fidel Cacheda
Published: July 2015

This paper presents an analysis of the most important features of the Web and its evolution and implications on the tools that traverse it to index its content to be searched later. It is important to remark that some of these features of the Web make a quite large subset to remain “hidden”. The analysis of the Web focuses on a snapshot of the Global Web for six different years: 2009 to 2014. The results for each year are analyzed independently and together to facilitate the analysis of both the features at any given time and the changes between the different analyzed years. The objective of the analysis are twofold: to characterize the Web and more importantly, its evolution along the time.
Using Microsites as Live Presentation Platforms
Authors: Hai-Jew Shalin
Published: July 2015

Live presentations in academic conferences often link to online resources for preview or post-view. Microsites may enhance live and real-time presentations. To examine the human factors and software challenges involved, this chapter offers three real-world partial solutions for interactive microsites that serve multiple purposes. This article focuses on the use of SoftChalk as a core authoring tool to create microsites for live presentations. Three real-world and unique cases (all from 2012) are showcased here: “Using Tableau Public for (Spatial and Trendline) Data Visualization (An Early Exploration and ‘TMI' Musing on Data)” at https://softchalkcloud.com/lesson/rtNYCf1K80el9w; “Building and Analyzing Node-Link Diagrams to Understand Social Networks” at https://softchalkcloud.com/lesson/c4d8tSWMCwm39n; and “Building Effective Study Guides for Online Learning and Assessment” at https://softchalkcloud.com/lesson/rFnD0AQX3xRVTa.
Pattern Recognition of Subconscious Underpinnings of Cognition using Ultrametric Topological Mapping of Thinking and Memory
Authors: Murtagh Fionn
Published: July 2015

The author reviews the theory and practice of determining what parts of a data set are ultrametric. He describes the potential relevance of ultrametric topology as a framework for unconscious thought processes. This view of ultrametric topology as a framework that complements metric-based, conscious, Aristotelian logical reasoning comes from the work of the Chilean psychoanalyst, Ignacio Matte Blanco. Taking text data, the author develops an algorithm for finding local ultrametricity in such data. He applies that in two case studies. The first relates to a large set of dream reports, and therefore can possibly recall traces of unconscious thought processes. The second case study uses Twitter social media, and has the aim of picking up underlying associations. The author's case studies are selective in regard to names of people and objects, and are focused in order to highlight the principle of his approach, which is one of particular pattern finding in textual data.
The Operationalization of the Unconscious
Authors: Tonti Marco
Published: July 2015

This paper presents a brief review of some formal approaches to the modeling of unconscious phenomena. These models allow for the operationalization of the concept of psychodynamic unconscious towards a possible inclusion in the fields of Cognitive Informatics and Cognitive Computing. In particular this paper presents the conceptualization proposed by Ignacio Matte Blanco of the functioning of conscious and unconscious thinking. In his original view the two ways of thinking are conceived as two distinct logics, “symmetrical” and “asymmetrical” logics. In this study the fundamentals of his concepts are identified and re-elaborated in a more formal way, with the aim of developing an operational and dynamic functional structure that evolves over time and that includes the affective value of objects. On this basis a computational implementation of the conscious–unconscious interaction that employs Learning Classifier Systems (LCS) is put forward.
Towards Ultrametric Modeling of Unconscious Creativity
Authors: Khrennikov Andrei , Kotovich Nikolay
Published: July 2015

Information processed by complex cognitive systems is characterized by the presence of various closely connected hierarchic structures. The most natural geometry for the representation of such structures is geometry of trees and the corresponding topology is the ultrametric topology of on these trees. And the p-adic trees provide the simplest model for representation of mental hierarchies. Moreover, p-adic trees can be endowed with the natural arithmetic reminding the usual arithmetic of real numbers. Therefore it is natural to start from the p-adic models of brain's functioning. In this note the authors apply this model to demonstrate the ability of the “p-adic brain” to process adequately the objects of the physical Euclidean space in the p-adic tree representation. This study also leads to p-adic modeling of brain's creativity and its ability to create abstract images. The authors' model is about unconscious processing of information by the brain. Therefore the authors can say about elements of coming theory of unconscious creativity.
User Preferences for Web-Based Module Design Layout and Design Impact on Information Recall Considering Age
Authors: Pomales-García Cristina , Rivera-Nivar Mericia
Published: July 2015

Research in design of Web-based modules should incorporate aging as an important factor given the diversity of the current workforce. This work aims to understand how Web-Based Learning modules can be designed to accommodate young (25-35 years) as well as older (55-65 years) users by: (1) identifying how information sources (instructor video, banners, and PowerPoint slides) within a Web-based module impact user information recall; and (2) distinguishing if there are any module layout preferences based on module content, participant gender, and age group. The results from the study show that information recall significantly varied based on age group and Web-based module content, and provide empirical evidence to suggest a general preference for placing the video in the left-upper corner of a Web module screen.
How the Social Enterprises Support Social Sustainability
Authors: Khan Rakhshanda , Pekkarinen Satu , Konsti-Laakso Suvi , Melkas Helinä
Published: July 2015

The purpose of this paper is to investigate whether or not the social enterprises in Finland are in reality socially sustainable. This paper mainly draws on the empirical data gathered from surveys sent to the social enterprises all across Finland. In addition, a part of the data was also collected from four workshops that focused on social enterprises in Finland. The authors' analysis showed that employee participation was highly valued and the employees were given equal opportunities. However, the organisations needed some improvements in terms of their workplace practices. Most of the social enterprises collaborated with businesses, non-governmental organisations and public sector organisations but had little collaboration with universities and research organisations. The role of the social enterprises is still unstable and developing. Their most important role is the employment generation which has had a tremendous positive social impact.
An Approach to Dynamic Fusion of the Knowledge Maps of an Activities Process
Authors: Brahami Menaouer , Atmani Baghdad , Matta Nada
Published: July 2015

The interest of companies for a greater valuation of their information, knowledge and competency is increasing. These companies have a knowledge capital (tacit and explicit) often poorly exploited. These information resources include knowledge and information useful and necessary to the execution of trades' processes and that it will be captured and formalized by using knowledge engineering methods, such as knowledge mapping techniques. In this context, the authors present a new approach to dynamic fusion of knowledge maps for an activities process that builds on the one hand, the graphical representation of the knowledge mapping and the boolean modelling of the graph (MBG). On the other hand, the authors' fusion algorithm of the maps which relies on notions of “index” type which allows determines the type of node of map to merge their fusion algorithm of the maps which relies on notions of “index” type which allows determines the type of node to merge and on notions of the boolean modelling of the knowledge maps. The authors finally implemented this algorithm to obtain experimental results. This result can be used as a decision support tool, whether individual or collective.
Process Frameworks in Services Offshoring
Authors: Balint Bryon
Published: July 2015

Prior research has characterized the adoption of process standards as a multi-stage effort ranging from the initial implementation through institutionalization. However, relationships between these adoption stages have not been examined significantly. In this study the author analyzes performance data from a large service provider that has implemented a process standardization framework for services offshoring. The author evaluates how process standardization influences service delivery performance, and how the effect of standardization differs based on the implementation effort for each new process and the complexity of the task for which the process is implemented. The results indicate that performance on complex tasks increases to a greater extent after standardization than performance on simple tasks. Contrary to expectations, by itself higher implementation effort is not associated with greater performance improvement after standardization occurs. Rather, performance on complex tasks improves to a greater extent following a higher implementation effort than after a lower implementation effort.
Enhancing Organisational Maturity with Benefits Management
Authors: Gomes Jorge , Romão Mário
Published: July 2015

The business challenges that some companies face require enterprise-wide solutions that call for an integrated approach and an effective management of organisational resources in order to achieve business objectives with an acceptable level of risk. A maturity model is an improvement approach which provides organisations with the essential elements for effective change. The maturity models process helps to integrate traditionally separate organisational functions, enhances goals and priorities, supplies guidance for quality processes and shares benchmarks for appraising current outcomes. The benefits management approach emerges as a complement to traditional management practices and proposes a continuous mapping of business benefits and the implementation and monitoring of intermediate results. Benefits management reinforces the distinction between project results and business benefits. Based on a case study, the authors show how a set of business objectives derived from a maturity level upgrade can be obtained from identifying, structuring and monitoring objectives and benefits. This was supported by information technology enablers and organisational changes which were all framed in an organisational maturity level that had been previously measured.
State of the Art on Ontology Alignment
Authors: Vargas-Vera Maria , Nagy Miklos
Published: July 2015

Ontology mapping as a semantic data integration approach has evolved from traditional data integration solutions. The core problems and open issues related to early data integration approaches are also applicable to ontology mapping on the Semantic Web community. Therefore, in this review the authors present the related literature, starting from the traditional data integration approaches, in order to highlight the evolution of data integration from the early approaches. Once the roots of semantic data integration have been presented, the authors proceed to introduce the state-of-the-art of the ontology mappings systems including the early approaches and the systems that can be compared through the Ontology Alignment Initiative (OAEI).
Uncertainty-Aware Sensor Data Management and Early Warning for Monitoring Industrial Infrastructures
Authors: Tzagkarakis George , Seliniotaki Aleka , Christophides Vassilis , Tsakalides Panagiotis
Published: July 2015

In several industrial applications, monitoring large-scale infrastructures in order to provide notifications for abnormal behavior is of high significance. For this purpose, the deployment of large-scale sensor networks is the current trend. However, this results in handling vast amounts of low-level, and often unreliable, data, while an efficient and real-time data manipulation is a strong demand. In this paper, the authors propose an uncertainty-aware data management system capable of monitoring interrelations between large and heterogeneous sensor data streams in real-time. To this end, an efficient similarity function is employed instead of the typical correlation coefficient to monitor dynamic phenomena for timely alerting notifications, and to guarantee the validity of detected extreme events. Experimental evaluation with a set of real data recorded by distinct sensors in an industrial water desalination plant reveals a superior performance of our proposed approach in terms of achieving significantly reduced execution times, along with increased accuracy in detecting extreme events and highly correlated pairs of sensor data streams, when compared with state-of-the-art data stream processing techniques.
Demos
Authors: Bourbakis Nikolaos , Tsoukalas Lefteri H. , Alamaniotis Miltiadis , Gao Rong , Kerkman K.
Published: July 2015

In today's dynamic network environments like smart cities, information evolves in distributed resources and in different forms or modalities. An agent or a system that wants to be actively part of this evolution has to be interactive, adaptive, autonomous and intelligent. The paper presents a new version of a distributed model-framework (called Demos) based on autonomous, intelligent agents with anticipatory responses. The first version of the system was proposed by , and the new features (LG Graphs, SPNs and NNs) were embedded in the version presented here. The Demos model is mainly based on the development of an adaptive distributed knowledge base system. Knowledge is represented in a form of frames with internal stochastic Petri-net graph for local representations (KR). A major advantage for the Demos model having a distributed (possibly across the net) is the adaptive knowledge base. Here the authors present the design of an adaptive knowledge model and its challenge, which lays principally on how to learn new knowledge by synthesising SPN forms, and how to develop anticipatory responses at an agent's site. The development of the Demos prototype has a great range of applicability, such as in autonomous negotiating teams, autonomous distributed units for energy efficient distribution, autonomous multiple mobile robots space exploration and maps generation, autonomous intelligent information agents (WWW), automatic information synthesis and fusion, etc. Here the authors have used this model for management of the electric power on a grid of a smart city.
Foreign Direct Investment (FDI) in Bangladesh
Authors: Abdin Joynal
Published: July 2015

During the liberation war in 1971 a nationalist weave emerged which gives Bangladeshis a spirit of freedom and dignity of independence but it also results on more reserved position in case of economic policy. Policy makers at that period used to see foreign companies access with a negative eyes. Foreign investments were discouraged as a result foreign direct investment (FDI) inflow in Bangladesh till 1980 is very insignificant. The growth of Bangladesh's FDI inflow was around US$ 308 – 356 million for long fifteen years (1980 – 1995) which started with an amount of US $ 0.090 million in 1972. Afterwards this concept has been changed into a reverse position and government start encouraging foreign direct investment from 1990s. A series of policy incentives, investment sovereignty has been offered to the FDI investors including tax holiday for several years, duty free facility for importing capital machinery, 100% foreign ownership, 100% profit repatriation facility, reinvestment of profit or dividend as FDI, multiple visa, work permit to foreign executives, permanent resident or even citizenship for investing a specific amount, Export Processing Zone (EPZ) facility, and easy hassle free exit facility. Potential sectors of can attract more FDI are power generation, infrastructure development, private port establishment, joint venture with deep sea port establishment under PPP, ship building, ICT sector, call center, education, healthcare, mining, gas extraction, agro processed product, electrical & electronics, light engineering, and fashion designing etc. After so many incentives offered by the government till now FDI Inflow into Bangladesh is not at a satisfactory level. During last few years fresh FDI investment in not taking place. From the statistics of last few years it is quite clear that, reinvestment of locally earned profit is the major amount of FDI into Bangladesh. Fresh FDI inflow is decreasing day by day. Government has to investigate the issue and undertake necessary measures to increase fresh FDI into Bangladesh.
The Selection of Higher Educated Graduates from the Field of Economy on the Job Market
Authors: Păunescu Loredana-Maria , Popescu Constanţa , Panagoreţ Ioana , Tofan Adina Cezarina
Published: July 2015

In the present article the authors will direct their attention to the processes of selection of young, highly educated graduates in economics on the job market. It is known that career planning involves a proper strategy in order to obtain a certain job especially one that suits best with the academic training. It is of high importance the idea that self-knowledge, self-evaluation and understanding of the young academic graduates own limits and skills, interests, values, personal or occupational preferences will help them to articulate their own way in their search for a suitable profession. In light of all the existing realities in the labour market, information and verification of employment opportunities, young graduates, and not only them, will be able to anticipate the opportunities and avoid the negative situations that might affect them emotionally, thus losing their confidence in their own forces and in their ability to adapt and reinvent themselves if necessary. It is appropriate to evaluate and identify all the alternatives, to select the best solution and to act accordingly. Setting a career plan is another essential step in the success of a graduate. More than that, determining individual goals in order to find the ideal job and planning ways of obtaining the objective to be attained are also crucial.
Three Dimensional Numerical Simulation of Vortex Structures in Barak River
Authors: Kiran S. , Kumar Upendra , Dey Amit Kumar
Published: July 2015

Natural channel have complex three dimensional flow structures particularly at the outer bank cell due to the combined effects of secondary currents and higher velocity profiles. In this paper Computational fluid dynamics is used to study the meandering bend of the Barak River. Numerical modeling is done using Reynolds averaged continuity and Navier Stokes equation. These equations are solved by finite volume method. Appropriate representation of counter-rotating secondary flow in the channel bend requires both the suitable treatment of the free water surface and a turbulence model that can resolve the anisotropy of turbulence. Hence the volume of fluid method (VOF) was used to model the free surface and reynolds stress turbulence model (RSM) has been used to close the RANS equations. Higher velocity profiles were prominent at the outer bank. Skew induced stream wise vorticity was observed close to the outer bank which confirms the existence of corner induced secondary current. The vortices formed were found to be of Prandtl’s first kind.
Implementation of Real-Time Concentration Process Control System Design Based on PID and Fuzzy Logic Controller
Authors: Elbakri Mohamed Amir Gabir
Published: July 2015

Concentration process is commonly process in industries for chemicals and products that want to reach desired amount of matter in product, so concentration process control is important to reach the desired concentrate of product.Concentration in streams are affected by physical variables around it like pressure, temperature and amount of matter that solvent in streams, so the amplitude of concentration is randomly change with time that make control process not easy.In this project controller was designed for concentration process and was implemented in real-time system that constructed to verify the response of controller, in prototype concentrated solutions-juice and sugar-used to control in it separately with water then mixed to produce juice with desired property.The Mathematical model of concentrated process was evolved and Matlab used to analyze and design control loop for these model, control algorithms used as PID & Fuzzy logic controller to build controller that achieve the specification requirements of a system process.The Fuzzy PI-controller designed to control that for characteristic of nonlinearity of real-time system, and implement simulation of control loops in LABVIEW software with appropriate interface.The DAQ hardware with LABVIEW software are used to implement the control loop that designed for real-time prototype to produce the juice with desired concentrated.
Particle Swarm Optimization Based Empirical Correlation for Prediction of Hydrate Formation in Deep-Water Pipeline
Authors: Abbasi Aijaz , Hashim Fakhruldin M.
Published: July 2015

Since formation of hydrate in deep water pipeline could cause problems such as decreasing hydrocarbon production and increasing operational cost and time, this work offers to ascertain when and where hydrate will form with respect to change in pressure and temperature in deep water gas pipeline. The pressure is relatively high in deep water pipeline, and it is entirely possible to meet the hydrate formation conditions and pose a significant operational and security challenge. The study aims to develop a correlation that will help in finding hydrate formation pressure and temperature conditions of gas mixture flowing in deep water pipeline. The correlation is based on gas hydrates formation temperature with and without concentration of inhibitors. On the basis of existing published experimental data from the work by ‘E. Dendy Sloan’ and ‘Riki Kabayashi’, a new correlation will be developed using Particle Swarm Optimization. This research provides an effective coefficients for predicting hydrate formation Pressure / Temperature conditions for deep water gas pipeline.
Vibration Suppression of Timoshenko Beam Using Optimal DTMD
Authors: Chen T.Z. , Yang Fan , Fu J.
Published: July 2015

The vibration suppression of Timoshenko beams, subject to the random excitation, using the Distributed Tuned Mass Damper (DTMD) technology has been investigated in this study. The governing differential equations of motion of the Timoshenko beam with the attached DTMD system have been derived using extended Hamilton's principle, and solved utilizing the Finite Element Method (FEM). Comparing with the traditional TMD or DTMD design methodologies, in this study the design is focused on the attached mass (es) of the DTMD system under predefined stiffness (es) and damping factor (s). The validity of the established design methodologies have been verified through illustrated examples.
Multi-Response Optimization of Wire-EDM Process Parameters of Titanium Alloy Using Taguchi Method and Grey Relational Analysis
Authors: Ramamurthy A. , Sivaramakrishnan R. , Venugopal S. , Muthuramalingam T.
Published: July 2015

It is very important and complexity to find the optimum values of wire EDM process parameters and contribution of each parameter to attain the better performance characteristics. In this study, an attempt has been made to optimize those parameters while machining the titanium alloy. Since the process involves more one than one response parameter, it is essential to carry out the multi-response optimization methodology .The experiments have been conducted with different levels of input factors such as pulse on time,pulse off time and wire tension based on Taguchi L9 orthogonal table.Wire EDM optimal process parameter has been identified using grey relational analysis and significant parameter has been determined by analysis of variance. Experimental results have indicated that the multi-response characteristic such as material removal rate and surface roughness can be improved effectively through grey relational analysis.
Production of Metal Matrix Composite Using a Bottom Tapping Stir Casting Furnace
Authors: Arunachalam Ramanathan , Al-Maharbi Majid , Al Kiyumi Yahya , Aal-Thani Elyas , Al Mafraji Mohammed
Published: July 2015

Metal matrix composites (MMC's) have attracted the attention of researchers for quite some time. In the last 15 years, many studies have been reported in this field of MMC production through various routes. The most commonly used process for producing MMC is stir casting process whereby the reinforcement material is incorporated into the molten metal by stirring. It is a relatively low cost manufacturing process that is capable of producing high quality MMC. However, the process is associated with issues such as attaining uniform distribution of particles, wettability between particles and porosity in the MMCs. Because of these challenges, there has been continuous improvement in the process as well as the design of the furnace. In this research, an innovatively designed bottom tapping furnace has been used to produce the MMCs and the produced sample is characterized.
Modeling a Chemical Exchange Process for the 13C Isotope Enrichment
Authors: Kovendi Zoltan , Mureşan Vlad , Abrudean Mihail , Clitan Iulia , Ungureşan Mihaela Ligia , Coloşi Tiberiu
Published: July 2015

This paper presents a solution for modeling a chemical exchange process carbon dioxide (CO2) – carbamate for the 13C isotope enrichment. A big difficulty in the process modeling procedure is the fact that it is a non-linear one. In order to solve this problem, an original modeling solution that permits the process simulation for the entire domain of the values of the input signal is used. The process modeling is made in order to include it in an automatic control structure of the 13C isotope concentration. Some relevant simulations of the open loop process are presented, both in the case when the disturbances do not occur and the case when they occur in the system.
Study on the Influence of Workrest Positions on the Deflection of Crankshaft of an Orbital Grinding System
Authors: Jang J. , Choi W.C. , Cho C.R. , Cho S.J.
Published: July 2015

In this study, the influence of workrest positions on the deflection of a crankshaft is investigated, in order to enhance the machining precision in orbital grinding. Crankshafts of 3m, 5m and 8m are selected, and three types of states (no machining, journal machining and pin machining) are studied. The model is simplified with stiffnesses applied to the stock instead of real contact between workrest and stock. As the workrests are positioned to the machining region, the deflection of the machined stock is reduced. Pin machining shows more stable result than journal machining.
Non Contact Displacement Transducers Implementation as Stage in the Development of a Flexible Low Cost Coordinate Measuring Machine
Authors: Braun Barbu Cristian
Published: July 2015

The paper presents a stage of the research concerning the development and improvement of a low cost small flexible coordinate measuring machine (CMM) that could be used in the future both in research and industry. Its main advantage could refer to the low cost (only about 30 ÷ 40% of the cost of a CMM in the category on the market, having similar dimensions) in conditions of high performance criteria. This could be possible due to the fact that they were implemented some recycled components in the construction of the robotic drive axes of the machine structure, low cost scanning devices and low cost mechanical systems for fixing and adapting the scanning devices. The research stage presented in the paper is essential for the later stages of research to develop an integrated concept: low-cost, flexibility, precision and efficiency, all criteria referring to a small portable scanning CMM, with possible application in any domain. Specifically, the described research stage refers to evaluate the implementation of some scanning systems, type non-contact low-cost and modern displacement transducers, on the principle of emission of LASER radiation, in terms of scanning accuracy. The reason is that currently these systems are used more and more in the CMMs construction.
Using Inertial Sensor System to Measure the Workspace of the Surgeon's Upper Limbs during Operations
Authors: Soroush Ali , Farahmand Farzam
Published: July 2015

The aim of this study was to determine the workspace of surgeon's body for designing more efficient surgical robots in the operation rooms. Five wearable inertial sensors were placed near the wrist and elbow joints and also on the thorax of surgeons to track the orientation of upper limb. Assuming that the lengths of five segments of an upper limb were known, measurements of the inertial sensors were used to determine the position of the wrist and elbow joints via an established kinematic model. subsequently, to assess the workspace of surgeon upper body, raw data were collected in the arthroscopy and laparoscopy operations. Experimental results demonstrated that the workspaces of surgeon's joints are limited and predefined. The results can be used for designing surgical robots and surgeon body supports.
Friction Analysis between Uhmwpe, Alumina - Magnesia Ceramic and Pva Hydrogel, Biomaterials for Prosthetic Devices
Authors: Stamate Ciprian , Munteanu Corneliu , Stamate Monica Cretan
Published: July 2015

This paper presents experimental analysis of the phenomenon of friction that occurs between two surfaces, one of polyethylene and other ceramics. Alumina ceramic is being recognized like a good biomaterial for its high strength and toughness. This ceramic, is used to manufacture the femoral head for arthroplasty of the hip joint in association with an ultra-high-molecular-weight polyethylene (uhmwpe) socket. Wear-resistant properties of uhmwpe were screened on two principally wear devices: first made by polyethylene – alumina-magnesia ceramic and the second by polyethylene – alumina-magnesia ceramic covered with polyvinyl alcohol (pva) layer. Sterile physiological saline is chosen as the lubricant fluid media. After hydration the pva layer provide lubricant properties. Depending on the lubricant medium, the friction coefficient (cof) of polyethylene and alumina-magnesia ceramic-pva counterfaces was about 0.38 (24 times low that polyethylene and alumina-magnesia ceramic counterfaces). Polyethylene friction coefficient in contact with alumina-magnesia ceramic was more susceptible in saline solution in which was about 0.46 compared with 0.016 on alumina-magnesia ceramic-pva. On the other hand, fluid environment shows a strong effect on polyethylene wear in contact with ceramic surfaces, increasing friction coefficient by ceramic hydration. The wear particles obtained in dried conditions are aglomerated and well individualized compared with lubricated conditions which are poorly individualized and with fine structure.
Adhesive Gripping Elements in a Construction of Gripping Heads
Authors: Horák Marcel , Novotný František
Published: July 2015

The paper describes possibilities to use industrially adhesive gripping elements in automatized handling processes especially for flat objects but also for objects slightly dissected according to height (e.g. sheets of glass, plastics, metals, plastic products etc.) which have dry, relatively clean, and smooth contact surfaces. It begins by analyzing results obtained in the field of designing combined vacuum-adhesive gripping elements, and the exclusively adhesive (passive) ones being suitable for technologically difficult handling conditions, e.g. in vacuum, as well. Furthermore, problems of the maximum carrying capacity of individual gripping elements being arranged parallel on a frame of a multi-element gripping head. A new concept of a compensation module of the gripping element position is presented as well, namely in relation to the head frame and to the handling object contact surface dissected according to height.