bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of pipeline transportation systems for carbon dioxide sequestration
Authors: Witkowski Andrzej , Majkut Mirosław , Rulik Sebastian
Published: August 2014

A commercially available ASPEN PLUS simulation using a pipe model was employed to determine the maximum safe pipeline distances to subsequent booster stations as a function of carbon dioxide (CO2) inlet pressure, ambient temperature and ground level heat flux parameters under three conditions: isothermal, adiabatic and with account of heat transfer. In the paper, the CO2 working area was assumed to be either in the liquid or in the supercritical state and results for these two states were compared. The following power station data were used: a 900 MW pulverized coal-fired power plant with 90% of CO2 recovered (156.43 kg/s) and the monothanolamine absorption method for separating CO2 from flue gases. The results show that a subcooled liquid transport maximizes energy efficiency and minimizes the cost of CO2 transport over long distances under isothermal, adiabatic and heat transfer conditions. After CO2 is compressed and boosted to above 9 MPa, its temperature is usually higher than ambient temperature. The thermal insulation layer slows down the CO2 temperature decrease process, increasing the pressure drop in the pipeline. Therefore in Poland, considering the atmospheric conditions, the thermal insulation layer should not be laid on the external surface of the pipeline.
The Model Of Analysis And Improvement Of The Firm's Innovation Capability
Authors: Alexe Cătălin George , Alexe Cătălina Monica , Scarlat Cezar , Alexe Florin Alexandru
Published: August 2014

The latest studies are focused on innovation. Both theory and practice are based on concepts as: innovation, innovative persons or organizations, innovation potential, innovation capability, innovation audit and innovation management. The effort of a firm to gain a certain competitive advantage implies to be capable to innovate; the organization has to offer an adequate framework for development and valorisation of the employees' creative initiatives. The innovation capability of a firm depends on the ability of the managers to identify specific factors that work on it and finding out the way they act. Based on the results of a preliminary investigation regarding other complex tools used in the innovation management, the authors are proposing a model of analysis and improvement of the firm’s innovation capability.
On The Art Of Making Business Plan - A Successful Case
Authors: Dezhi Liu , Wenjing Cui
Published: August 2014

“Challenge Cup” business plan competition of Chinese college students is held jointly by Central Committee of Chinese Communist Youth League, China Association for Science and Technology, Ministry of Education and All-China Students Federation. It is held every two years and is universally acknowledged as the “Scientific and Technological Olympics” of Chinese college students. It is important to make a business plan after the student chooses a subject of business plan, builds a business creation team, and does a wide & deep marketing investigation. However, tens of year’s practices of business plan competition have seen that business plan’s theory is not closely related to the practice, its practicality is not strong and the attractiveness & persuasiveness need to improve. Thus, it’s necessary to do a summarization through analyzing cases.
The Critical Factors Of Entrepreneurial University In Engineering Education: A Conceptual And Empirical Analysis
Authors: Militaru Gheorghe
Published: August 2014

The transformation of a traditional research university into an entrepreneurial university is increasing due to the reduction or limitation in the university funding from public sources and the emergence of a competitive market for education and research. Entrepreneurial universities play an important role as both knowledge-producer and as disseminating institutions. The aim of this paper is represented by contribution to a better understanding the most critical factors that conditioned the development of entrepreneurial universities, as hubs of creativity, with the teaching, research and entrepreneurial missions. This paper provides evidence based on survey data for a sample of Romanian investigators in engineering sciences. A multivariate regression analyses were used to test our hypotheses by research field. We obtain statistical evidence indicating that our hypotheses have supported. The results of this research show that the most critical factors identified were attitudes towards entrepreneurship from academics and students. In addition, our findings suggest that some universities seek to improve the university-industry cooperation as a means to obtain additional income and learning from industry.
An Enterprise Development Initiative: Incubation In The South African Motor Body Repair Sector
Authors: Muyengwa Goodwell , Dube Partson , Battle Kimbelry , Masinga Errol
Published: August 2014

The paper investigates motivations, challenges and success factors experienced by an incubator company and panel shop owners during transformation from a non-registered to a registered panel shop. Since 2006 the company has assisted six black owned panel shops in upgrading their businesses through an annual grant of R1.5 million per business. The objective is to develop and empower disadvantaged black owned motor body repairers. The study was conducted through multiple case studies and in-depth interviews with owners and staff of these panel shops including incubator company personnel. The study revealed that noticeable improvements were in better infrastructure, improved management skills, registration with the repair authority, access to work from the insurance industry and better turnover. Challenges faced were in building of trust among panel shop owners and support agencies seconded to their businesses by the incubator company during the incubation process.
Leadership Style Toward Competitive Advantage Of Business Education
Authors: Maghviroh Rovila El
Published: August 2014

Leadership style used in a higher education institution affects the competence-based performance of the lecturers and the administrative staff. In turn, their performance will affect the institution performance. So, leadership style influences the institution toward strengthening its strategy to sustain. This study examined the transactional and transformational leadership styles toward the lecturers and the administrative staff of STIE Perbanas Surabaya. Transformational leadership was measured using ideal, inspirational, and intellectual stimuli; while transactional leadership was measured using exceptional management and contingency reward. The indicators used to measure the lecturers' performance were on teaching, module, research, civil services, IT, English; while for administrative staff were integrity, service, professionalism, learning, adaptation, documenting, English. The survey involved 32 lecturers and 31 administrative staff. The data was collected using questionnaire and was statistically analyzed using multiple regressions. The result was that transformational leadership significantly influenced both the lecturers and the administrative staff, while transactional leadership did not affect both the lecturers and the administrative staff. The implication was that the top management can set strategies of putting motivation of all organization members in the frame of improving their competence thus this will help the institution grow and sustain.
Development Of A Methodology For Improving Product Quality In Order To Maintain Market Competitiveness
Authors: Şogorăscu Irina , Zerbes Mihai , Oprean Constantin , Kifor Ştefania , Rus Alina
Published: August 2014

This article summarizes a research study conducted at SC Scandia SRL Sibiu with double purpose: first to propose a methodology designed to help maintain the competitiveness of the market; on the other hand to provide a complex tool use in training of future graduates of academic skills. The methodology developed is multidisciplinary combining established marketing methods and quality management. The team followed the methodology to be effective, easy to apply and involve minimal costs.
Innovative New Methods For Engineering Education. Case Study In Food Enzymological Simulation-Based Learning
Authors: Darie Neli , Mironescu Ion Dan
Published: August 2014

Simulation-based learning as a broad modern technical high educational method offers through students' research projects, more advantages: performing individual and team student work, originality and practical usefulness, interdisciplinary fields. The student's personality is stimulated and also well developed and many professional major skills in food engineering are assimilated. The aim of this paper is to assess, in a case study of some technological food enzymes features, the simulation-based learning using simulation means. The results of this educational method prove a higher motivation in students' research work; the study environment is nearest of the real applications from the food industries.
The Integration Of Engineering And Business Education In A Global-Network University
Authors: Sjursen Harold P.
Published: August 2014

New York University characterizes itself as a global-network university. It currently offers (or soon will) engineering and business/management curricula leading to baccalaureate degrees on campuses in New York, Abu Dhabi and Shanghai. The programs are designed to be interoperable, i.e., students (and faculty) can move from campus to campus while staying on track in their particular course of study. This objective of interoperability raises interesting issues regarding the internationalization of engineering and technical education. Additionally, at Abu Dhabi and Shanghai, the engineering and business management programs are tightly integrated with classical, western liberal arts education. This paper will explore the variety of educational and philosophical issues of this approach. The paper will offer a favourable assessment of the approach while acknowledging the profound challenges it entails.
Engineering Management In An Interdisciplinary Senior Design Project
Authors: Yelamarthi Kumar , Slater Joseph , Wu John , Mawasha P. Ruby
Published: August 2014

Innovation in the changing undergraduate engineering curriculum mandates efficient management of interdisciplinary capstone senior design projects. This effort requires collaboration and management of students and faculty from multiple disciplines, and provides students an opportunity to learn from other engineering disciplines. In addition, this approach will i) emphasize problem solving and creative thinking skills; ii) provide students first-hand experience in generating a management plan; iii) expose students to multiple engineering disciplines, and work in diverse, multi-cultural teams; and iv) prepare students with an in-depth understanding of the interdisciplinary skills necessary for success. The senior design project (SDP) presented is based on the interdisciplinary collaboration of electrical, computer, and mechanical engineering students and faculty to design an integrated high altitude balloon system that would reach an altitude of 100,000 feet and return safely to earth. This paper presents methods by which all the above issues are addressed, results obtained over the recent years.
Sustainable Development Through Innovation In Service Sector
Authors: Banu Ilie , Butiuc Ioana Madalina
Published: August 2014

Regarding the economic crises and the slow recovery that still continues, we believe that a solution can be improving the capacity to research and innovate in order to achieve sustainable development. Another key issue of the paper is about developing the cooperation between academia and business. The challenge of this development is how to increase the amount to finance research and innovation that can be implemented in the economy. As a global solution, to this problem we can recommend, for example, reducing tax evasion and by fiscal education. Also particular sources have to be found in order to develop innovation on SME level. It is essential for innovation to make quality research in order to be better prepared and increase adaptability to economic cycles. The aim of the paper is to find out how service innovation and cooperation between academia and business can enhance sustainable development indicators. The conclusions of the paper are structured in particular proposals and recommendations.
The Business Community To Support The Training Of Prospective Students/Employees
Authors: Duşe Dan-Maniu , Negrea Gabriel-Octavian
Published: August 2014

In the past years, theoretical high-school education in Romania has gone through much public criticism regarding both the quality and the effectiveness of the instruction offered to students. An excessive focus on theory for most subjects and the neglect of the practical aspects/applications of the themes studied are known to have had negative effects on students’ motivation and their ability to choose a career and to adapt to the labour market requirements. The authors of this article intend primarily to briefly analyse some of the curricular aspects underlining this problem and to suggest some opportunities to offset this situation – opportunities derived from the business community and within the reach of the theoretical high-schools’ managers. In support of the proposed solutions, the authors are going to examine two types of initiatives implemented at the “Gheorghe Lazăr” National College from Sibiu: “training placement” in EU-funded Leonardo da Vinci projects and a “work-experience” type of initiative leading to a successful programme run every school year in cooperation with firms, institutions, and companies from Sibiu.
Making Air Travelling More Economical, An Innovative Drag Reduction Approach For A Supercritical Wing Section Using Shock Control Bumps
Authors: Saeed A , Raza Malik. S. , Mohsin Khalil Ahmed
Published: August 2014

Air travelling is the second largest travelling medium used by people. In future it is expected to be the first choice for the travellers. As increase in the price of oil cost of air travelling is getting higher. Engineers are forced to find the cheaper means of travelling by innovating new techniques. This paper presents the new idea to reduce air travelling cost by reducing drag, which is major driving factor of high fuel consumption. Two-dimensional and three-dimensional shock control contour bumps have been designed and analysed for a supercritical wing section with the aim of transonic wave drag reduction. A supercritical airfoil (NACA SC (02)-0714) has been selected for this study considering the fact that most modern jet transport aircraft that operate in the transonic flow regime (cruise at transonic speeds) employ supercritical airfoil sections. It is to be noted that a decrease in the transonic wave drag without loss in lift would result in an increased lift to drag ratio, which being a key range parameter could potentially increase both the range and endurance of the aircraft. The major geometric bump parameters such as length, height, crest and span have been altered for both the two-dimensional and three-dimensional bumps in order to obtain the optimum location and shape of the bump. Once an optimum standalone three-dimensional bump has been acquired an array of bumps has been manually placed spanwise of an unswept supercritical wing and analysed under fully turbulent flow conditions. Different configurations have been tested with varying three-dimensional bump spacing in order to determine the contribution of bump spacing on overall performance. The results show a 14 percent drag reduction and a consequent 16 percent lift to drag ratio rise at the design Mach number for the optimum arrangement of bumps along the wing span. This innovative technique proves to be a bridge between economical problems and engineering solutions and a milestone for aviation engineering.
Business Intelligence For Educational Purpose
Authors: Banica Logica , Stefan Liviu Cristian , Jurian Mariana
Published: August 2014

The paper follows three main directions: business intelligence – as a software tool, companies – as an application field and top management – as target of intelligent efforts. From this symbiosis does result an advantage, scientific and data based educational tool, having the goal to give the students a tool to explore data collections and analysis methods in order to improve the management of a company and forecast its evolution. The purpose of Business Intelligence (BI) software is to help the firms on acquiring knowledge about highlights and dangerous trends, to observe the connections and to forecast the future market evolutions. From this perspective, we consider that students need to learn theory and practical application about BI. After an overview of the BI main concepts, we choose to use the facilities of Jaspersoft BI software; to model the most frequently used analysis requirements, displaying the most relevant data and key indicators, following the steps of a BI system.
The Impact Of Transformational Leadership On University Performance Through Knowledge And Innovation
Authors: Militaru Gheorghe
Published: August 2014

This study investigated the range of potential performance implications of transformational leadership to improve the university performance by creativity, knowledge, and innovation. We examine the relationships among innovation orientation, transformational leadership, organizational learning, and university performance using hierarchical OLS regression technique. We found that transformational leadership influences the relationship between leaders' performance (rectors, deans, and managers) and university's outcomes (teaching, research, and service) to establish how leader behaviours affect the university performance. Results reveal that transformational leadership may motivate academic staff to work harder, exerting more effort and engaged in higher levels of task performance through inspirational motivation, intellectual stimulation, idealized influence, and individualized consideration. The current study shows that transformational leadership may facilitate higher levels of creativity and innovation through emphasized the knowledge integration mechanisms into university. The moderately positive relationships of transformational leadership with university performance suggest that universities should focus on selecting and promoting individuals for upper-level managerial positions with these characteristics
Knowledge Capital – Influenced By Rationality Or Animal Spirits?
Authors: Oprean Camelia
Published: August 2014

It is already a well-accepted concept in expansion, the economy, organization and management based on knowledge. It is said that the owners of knowledge, respectively the individual, organization and the society, will hold the power in the future. Thus, the knowledge become the economic and personal basic resource and all the activities from the economic sphere are prevailingly concentrated on the treatment of information and producing of knowledge goods. However, it is still difficult to explain on a strict scientific basis why people behave non-rational when facing with money decisions. Classic finance foundation lays on strict rationality and optimization of financial decisions. We affirm that monetary and financial decisions are significantly influenced by psychological factors. Behavioural Finance adds to the equation the psychological and emotional facets of the human decision. This emerging discipline has challenged the Efficient Market Hypothesis, arguing that markets are not rational, but are driven by fear and greed instead. The paper proposes a critical analysis, based on consistency criteria, regarding the controversy current state of the informational efficiency theory of the capital market. In this sense, the critical approach is one that shows the weaknesses, the vulnerable aspects that characterize the classical form of EMH theory. Also, the paper highlights the most significant criticisms levelled against EMH by psychologists and behavioural economists.
The I-P-C-V Model For Improving The Quality Management And Its Applications
Authors: Oprean Constantin , Bucur Amelia
Published: August 2014

The process of quality management consists of several stages defined by specific verbs. Some experts have named the stages after the following verbs[1,2,3]: to forecast and to plan, to organize, to direct, to control (Fayol), to plan, to do, to check, to act (Deming); to design, to implement, to manufacture, to deliver; to design, to supply, to control, to assess; to develop, to inspect, to control, to improve or to enhance; to establish quality policies and quality objectives, to establish strategies for quality planning, to determine strategies for quality control, to establish quality assurance policies, to establish policies in the field of quality improvement. In this work we will show that a model of improving the quality management process could be defined starting from the following verbs: to identify needs, to program, to construct, to verify. We will also define a new quality indicator in the Oprean-Bucur model. We applied the models for a course of the Faculty of Engineering from Sibiu, Romania.
Developing A Decision Support System For Project Management In Universities
Authors: Pascu Radu Vasile , Ciora Radu Adrian , Lobonţ Lucian , Simion Carmen Mihaela
Published: August 2014

Decision making is a complex and continuous process of correlation and harmonization of the project objectives with the organizational goals and all kinds of the resources available for projects carried out in universities (regardless of their source of funding). At an academic institution that can run simultaneously a large number of projects, using a Decision Support System (DSS) contributes to increase both transparency of decision and reaction rate of the decision makers. This paper presents a very useful DSS: POMADESUS – PrOject MAnagement DEcision SUport System. This DSS can be used to increase the efficiency of the Projects Implementation Unit from the University. POMADESUS is also a useful tool for all personnel involved in the implementation and the management of the projects.
Studies Regarding The Evolution And Development Of Documents Printing Technologies
Authors: Gora Nelu , Mătieş Vistrian
Published: August 2014

The paper presents a study of the evolution in development of documents printing technology, characterized in terms of the technical performance like print speed, resolution, repeatability, gamut etc., and of meeting the requirements of sustainable development and environment protection. Are analyzed printing technologies with toner and ink. Ink printing technology is emphasized using liquid and solid ink and toner printing based on the xerographic process, using organic xerographic drums.

The trend in the development of these technologies is to increase technical performance while meeting environmental requirements. In this context the main items are detailed on solid ink printing technology, widely promoted by the representative company in the market.
Collaborative Engineering In The Management Of Business Implementing Initiatives
Authors: Dobrin Carmen , Bondrea Ioan
Published: August 2014

Creating a systematic approach in designing and implementing of a new product, by considering all elements from lifecycle is integrating all the aspects of product, manufacturing and services process is one of the most advanced manufacturing method. The constantly team work between designing and manufacturing compartments is always reaching to the same point: higher quality-cost-time. Maturity of internet technologies, market shifts and increased competition forces the adoption of establishing offshore engineering centres where the combination from engineering and CAD software are working together for achieving new market goals. Collaborative Engineering is the key of business competitiveness.
Creativity And Benchmarking Influence On Research, Production And Marketing In Romanian Organizations
Authors: Moraru Gina-Maria
Published: August 2014

The paper is a small part of a research made for identify if benchmarking is or can be used in creativity management in Romanian organizations, in order to combat the effects of the economic-financial crisis and to increase organizational performance. Using questionnaires, the author collected data from the academic and industrial environment. The paper related the creativity and benchmarking influence on three of the organizational functions: research and development, production and marketing. First, it presents an original synthesis about the theory in this field. Second, it presents the results of a research performed on three categories of respondents: PhD candidates in management, university management professors and managers from industrial organizations. Finally, it suggested some modalities for an efficient use of creativity and benchmarking in Romanian organizations.
Test Of Vowels In Speech Recognition Using Continuous Density Hidden Markov Model And Development Of Phonetically Balanced-Words In The Filipino Language
Authors: Fajardo Arnel C. , Kim Yoon-joong
Published: August 2014

An Automatic Speech Recognition (ASR) converts the speech signals into words. The recognized words can be the final output or it can be an input for a natural language processing. In this paper, vowel recognizer using Continuous density HMM and Mel-Frequency Cepstral Coefficient (MFCC) were used for feature extraction for its development, and phonetically balanced words (PBW) in Filipino were developed. Thus, this study is a preparation for Filipino Language ASR using HMM. For vowel recognizer, forty speakers were trained (20 male and 20 female speakers). An average accuracy rate of 94.5% was achieved for speaker-dependent test and 90.8% for speaker independent test. For PBW, 2 word lists were developed consisting of 257 words for the 2-syllable Filipino PBW word list and 212 words for the 3-syllable Filipino PBW word list.
The Role Of The Work Force Skills In Innovation Process In A Flexicurity Culture – The Romanian Case Study
Authors: Pasnicu Daniela , Tudose Gabriela
Published: August 2014

In the context of flexicurity, lifelong learning is essential in keeping people in employment. It is important because it ensures initial good quality education, key skills and a good as possible correspondence between new skills and better jobs. The increased flexibility of labour market, due to the need of its adaptability to the new challenges and increased competitiveness, must be balanced by instant flexible lifelong learning programs, which promote innovation and creativity (learning by doing and learning by using). The article defines innovation and skills, investigates the role of labor market skills in the innovation process, describes and quantifies the diversity of skills and occupations involved in specific types of innovation activity. Having in mind Romanian’s low public funding compared to the EU States, the principles of the innovation policy and main directions of action are established in order to promote innovation.
The Powerful Impact Of The Social Media Over The Field Of Lifelong Learning
Authors: Neaţă (David) Anca-Elena
Published: August 2014

„Globalisation, new technologies and demographic developments constitute an enormous challenge; one of the answers to this problem is the access to lifelong learning”[1] (Jan Figel – Commissioner for Education, Training, Culture and Multilingualism). This paper is intended to be a plea in favour of faculty using and engaging social networks in the act of teaching and learning. This of course will imply a permanent effort of self-teaching for the teachers themselves. Similarly to the notorious brands that are already making use of the social media in an intense and prolific way, academic institutions ought as well to articulate a coherent and viable strategy, based on the new online communication channels, if they want to obtain and maintain their credibility and reputation for the public.
A Complex Perspective Of Social Audit In Corporate Governance
Authors: Dumitrascu Mihaela , Ciutacu Ileana , Savulescu Iulian
Published: August 2014

The social audit is interconnected with the corporate governance and contributes to the increase of the trust and transparency between stakeholders. Social audit aims to analyze social factors and how an organization can contribute to the improvement of its activity. Also it involves analyzing the environment in which the organization operates and how it can help to maintain or even improve it. The contribution of this paper is focused on a qualitative research on social practices within NGOs and banking institutions. There is a limited number of studies in this sense in the literature, because is quite difficult to exist a homogeneous image of a domain rather heterogeneous. The present study follows to build an image, accompanied by examples of socially responsible practices We realized a list with the issues related to social responsibility, with specific examples to argument this aspect.
Improving Low Voltage Ride Through Capability of Wind Generators Using Dynamic Voltage Restorer
Authors: Sivasankar Gangatharan , Suresh Kumar Velu
Published: August 2014

The increasing wind power integration with power grid has forced the situation to improve the reliability of wind generators for stable operation. One important problem with induction generator based wind farm is its low ride through capability to the grid voltage disturbance. Any disturbance such as voltage dip may cause wind farm outages. Since wind power contribution is in predominant percentage, such outages may lead to stability problem. The proposed strategy is to use dynamic voltage controller (DVR) to compensate the voltage disturbance. The DVR provides the wind generator the ability to remain connected in grid and improve the reliability. The voltage dips due to symmetrical and unsymmetrical faults are considered for analysis. The vector control scheme is employed for fault compensation which uses software phase locked loop scheme and park dq0 transformation technique. Extensive simulation results are included to illustrate the control and operation of DVR.
Capacitance Analysis of the Structures with the a-Si:H(i)/c-Si(p) Heterojunction for Solar-Cell Applications
Authors: Mikolášek Miroslav , Jakaboviš Ján , Řeháček Vlastimil , Harmatha Ladislav , Andok Robert
Published: August 2014

In this paper we present the capacitance study of the intrinsic amorphous silicon/crystalline silicon heterostructure with the aim to gain insight on the heterointerface properties of a passivated silicon heterojunction solar cell. It is shown that due to the high density of defect states in the amorphous layer the structure has to be analyzed as a heterojunction. Using the analysis, the following values have been determined: conduction-band offset of 0.13 eV, electron affinity of 3.92 eV, and density of defect states in the intrinsic amorphous silicon being that of 4.14 X 1021m—3.
Joint modeling of flood peak discharges, volume and duration: a case study of the Danube River in Bratislava
Authors: Bačová Mitková Veronika , Halmová Dana
Published: August 2014

The study is focused on the analysis and statistical evaluation of the joint probability of the occurrence of hydrological variables such as peak discharge (Q), volume (V) and duration (t). In our case study, we focus on the bivariate statistical analysis of these hydrological variables of the Danube River in Bratislava gauging station, during the period of 1876-2013. The study presents the methodology of the bivariate statistical analysis, choice of appropriate marginal distributions and appropriate copula functions in representing the joint distribution. Finally, the joint return periods and conditional return periods for some hydrological pairs (Q-V, V-t, Q-t) were calculated. The approach using copulas can reproduce a wide range of correlation (nonlinear) frequently observed in hydrology. Results of this study provide comprehensive information about flood where a devastating effect may be increased in the case where its three basic components (or at least two of them) Q, V and t have the same significance.
Surface Wave Speed of Functionally Graded Magneto-Electro-Elastic Materials with Initial Stresses
Authors: Li Li , Wei P. J.
Published: August 2014

The shear surface wave at the free traction surface of half- infinite functionally graded magneto-electro-elastic material with initial stress is investigated. The material parameters are assumed to vary ex- ponentially along the thickness direction, only. The velocity equations of shear surface wave are derived on the electrically or magnetically open circuit and short circuit boundary conditions, based on the equations of motion of the graded magneto-electro-elastic material with the initial stresses and the free traction boundary conditions. The dispersive curves are obtained numerically and the influences of the initial stresses and the material gradient index on the dispersive curves are discussed. The investigation provides a basis for the development of new functionally graded magneto-electro-elastic surface wave devices.
Wide-Band Optical Fibre System for Investigation of MEMS and NEMS Deflection
Authors: Orłowska Karolina , Świątkowski Michał , Kunicki Piotr , Słupski Piotr , Sankowska Anna , Sankowska Anna , Sankowska Anna , Sankowska Anna , Gotszalk Teodor
Published: August 2014

In this work the construction of experimental setup for MEMS/NEMS deflection measurements is presented. The system is based on intensity fibre optic detector for linear displacement sensing. Furthermore the electronic devices: current source for driving the light source and photodetector with wide-band preamplifier are presented.
ZnO - Wide Bandgap Semiconductor and Possibilities of Its Application in Optical Waveguide Structures
Authors: Struk Przemysław , Pustelny Tadeusz , Gołaszewska Krystyna , A. Borysiewicz Michał , Kamińska Eliana , Wojciechowski Tomasz , Piotrowska Anna
Published: August 2014

The paper presents the results of investigations concerning the application of zinc oxide - a wideband gap semiconductor in optical planar waveguide structures. ZnO is a promising semiconducting material thanks to its attractive optical properties. The investigations were focused on the determination of the technology of depositions and the annealing of ZnO layers concerning their optical properties. Special attention was paid to the determination of characteristics of the refractive index of ZnO layers and their coefficients of spectral transmission within the UV-VIS-NIR range. Besides that, also the mode characteristics and the attenuation coefficients of light in the obtained waveguide structures have been investigated. In the case of planar waveguides, in which the ZnO layers have not been annealed after their deposition, the values of the attenuation coefficient of light modes amount to a~ 30 dB/cm. The ZnO layers deposited on the heated substrate and annealed by rapid thermal annealing in an N2 and O2 atmosphere, are characterized by much lower values of the attenuation coefficients: a~ 3 dB/cm (TE0 and TM0 modes). The ZnO optical waveguides obtained according to our technology are characterized by the lowest values of the attenuation coefficients a encountered in world literature concerning the problem of optical waveguides based on ZnO. Studies have shown that ZnO layers elaborated by us can be used in integrated optic systems, waveguides, optical modulators and light sources.
Comparison of the CRLC Models Describing the Helmholtz Type Cells for the Nondestructive Photoacoustic Spectroscopy
Authors: Bartłomiej Chrobak Łukasz , Andrzej Maliński Mirosław
Published: August 2014

The photoacoustic cell is the heart of the nondestructive photoacoustic method. This article presents a new simple lumped-components CRLC model of the Helmholtz type photoacoustic cell. This model has been compared with the well known literature models describing the Helmholtz type cells for photoacoustic spectroscopy. Experimental amplitude and phase frequency data obtained for the two photoacoustic cells have been presented and interpreted in a series of models. Results of the fitting of theoretical curves, obtained in these models, to the experimental data have been shown and discussed.
Structural Dynamics of Romanian Forests after 1990
Authors: Rusu Eugen , Cojinovschi Alina-Daniela
Published: August 2014

The Romanian forest area in 2010 was 6,515 million ha, which represents approx. 27.3 % of the national territory. At European level, Romania is ranked 13 in the areas occupied by forests, but below the average forest coverage of 32 %. After a decline in forested areas recorded between 1990 and 2000 there was a slight rebound in the last decade, with an FAO estimated growth of over 30 000 ha per year between 2005 and 2011. This growth is primarily attributed to natural regenerations. If the production function is intrinsically provided in different proportions by all the functional categories, the protective function has a special attention, having clear typological distinctions, based on well-established natural or social components. Only maintenance work is allowed in protection forests. The total volume of timber harvested in Romania in 2010 was about 17 million m3, according to NFA upon reading the regeneration cuts of an area of over 99 hectares, 5000 ha of which by cuttings Compared to 2000, when they harvested less than 14 million m3, one can see a substantial increase of approx. 20 %. In the same period, in 2010, the total area of artificial regenerations was about 10 000 ha, which represents a tenth of the cutting surface, the remaining land being regenerated naturally.
Climatic and Hydrological Hazards in June 26-27, 2010 in the Upper Basin of Trotuş. Case Study: Between the Proposed Preparation and the Effects at Agăş (County of Bacău)
Authors: Paraschiv Viorel , Machidon Ovidiu-Miron , Capsa Doina , Găină Judit
Published: August 2014

The water catchment area of the Trotuş river lies on about 4340 square kilometers of which 66% are in the mountain area of the Central Group of the Eastern Carpathians (Moldo-Transilvans). In recent years the manifestation of natural hazards aggressiveness multiplied. In 2005 (12-13 July) and 2010 (26-27 June) Trotuş Valley was affected by strong floods that have produced great material damage. Hydro-technical works carried out after the 2005 summer hazard were swept away by the 2010 hazard, when were affected about 3,000 households in the upper course of the Trotus, most of the damage being recorded on the Agăş Creek Valley to the confluence with the Trotuş, the administrative territory of the commune Agăș, where about 2000 household suffered. The late melting snow on the Ciuc and Tarcău Mountains peaks mixed with summer rains determined total isolation of the Cotumba, Sulța, Goioasa and Coșnea hamlets. Provisory bridges realized on the main roads on the side valleys, where are many hamlets, renewed in 2009 summer, were quickly clogged and then swept away by the rough waters of the Trotus and its tributaries. In the upper basin of the Trotus. Over the past 20 years have been recorded up phenomena of paroxysm of the climatic and hydrologic hazards among which the creeks Grohotiş and Sulţa flooded the villages Goioasa and Sulţa. On the 12-13 July, 2005 the Creek Agăş flooded a part of the Agăş village, about 2 kilometers, in line, of households. Drăcoiu creek broke the wall of channeled flood reached exceptional values, the maximum flow at Vrânceni hydrometric station being of 2800 cubic meters/s (probability of overflow 0,5%) and the flood volume here was the biggest of all the existing measurements.
Little Ice Age in Romania in the Vision of a Syrian Traveler
Authors: Teodoreanu Elena
Published: August 2014

Archdeacon Paul of Aleppo of Damascus accompanied the Patriarch Macarios of Antioch, in Moldavia, Wallachia, Dobrogea for nearly seven years (1652-1659), just in time considered one of the coldest during the Little Ice Age, Maunder Minimum namely (1645-1715). His journey is recorded in his travel diary, written in Arabic and translated into Romanian in 1900. Romanian historians were particularly concerned with the information provided by the passenger about the towns, monasteries, and farmhouses, aspects of daily life, customs, habits and Romanian economy countries. But Paul of Aleppo describe and climate issues, particularly cold winters with frost Danube, snowy, storm at sea, rain, floods, etc. It is a very rich source of information in this area, so far little taken into consideration, showing that the Little Ice Age was also evident in Eastern Europe.
Interpolation Grid for Local Area of Iasi City
Authors: Mihalache Raluca Maria , Manescu Andreea
Published: August 2014

Definitive transition to GNSS technology of achieving geodetic networks for cadastre implementation in cities and municipalities, enforce establishing a unique way of linking between current measurements and existing geodetic data, with a sufficient accuracy proper to urban cadastre standards. Regarding city of Iasi, is presented a different method of transformation which consist in an interpolation grid for heights system. The Romanian national height system is „Black Sea-1975” normal heights system. Founded in 1945 by Molodenski, this system uses the quasigeoid as reference surface, being in relation with the ellipsoid through the height anomalies sizes in each point. The unitary transformation between the ETRS- 89 ellipsoidal height system and the normal one, at national level is provided through the „TransdatRo” program developed by NACLR (National Agency for Cadastre and Land Registration).
Oscillations and Cycles of Air Temperature in Russia
Authors: Isaia Ion
Published: August 2014

This paper proposes to demonstrate that in Russia there are air temperature oscillations which produce almost perfect cycles. These are the same cycles previously described in Romania, North America, New Zealand and South America. The large latitude and longitude extent of the territory of Russia determines very different thermal oscillations from one region to another. The Arctic Ocean has a special influence in the evolution of air temperature in Russia, but so does the Pacific Ocean, through the cold “Oya Shivo” current. The warm ocean current “Kuro Shivo” has a reduced influence, only through one of its branches which enters the Sea of Japan from the south.
Erosion Assessment Modeling Using the Sateec Gis Model on the Prislop Catchment
Authors: Damian Gheorghe , Năsui Daniel , Damian Floarea , Ciurte Dan
Published: August 2014

The Sediment Assessment Tool for Effective Erosion Control (SATEEC) acts as an extension for ArcView GIS 3, with easy to use commands. The erosion assessment is divided into two modules that consist of Universal Soil Loss Equation (USLE) for sheet/rill erosion and the nLS/USPED modeling for gully head erosion. The SATEEC erosion modules can be successfully implemented for areas where sheet, rill and gully erosion occurs, such as the Prislop Catchment. The enhanced SATEEC system does not require experienced GIS users to operate the system therefore it is suitable for local authorities and/or students not so familiar with erosion modeling.
Increase of pertussis incidence in 2010 to 2012 after 12 years of low circulation in Spain
Authors: Sizaire V , Garrido-Estepa M , Masa-Calles J , Martinez de Aragon M V
Published: August 2014

Binary file ES_Abstracts_Final_ECDC.txt matches
Biology of common rose butterfly, Pachliopta aristolochiae Fabricius (Lepidoptera: Papilionidae) on the host plant, Aristolochia indica L. (Aristolochiaceae)
Authors: Alam Md Maksudul , Bashar MA , Khan Humayun Reza
Published: August 2014

To study the biology of Pachliopta aristolochiae on its host plant Aristolochia indica singly laid eggs on the host plant were collected from the field and reared in the laboratory under optimum conditions of temperature (28 ± 3 °C) and relative humidity (70 ± 5% RH). Incubation period of the egg was 5.0 ± 0.6 days, larval developmental period was 11 ± 0.3 days, pre?pupal period was 0.87 ± 0.08 day, and the pupation took 12 ± 0.63 days. The length of 1st, 2nd, 3rd and 4th instar larvae were 4.0 ± 0.63, 9 ± 0.63, 22.6 ± 5.2 and 38.2 ± 4.70 mm, respectively. The feeding potential rate of 1st, 2nd, 3rd and 4th instar larvae were 11.4 ± 5.04, 29.6 ± 5.12, 51.4 ± 6.0 and 72.8 ± 4.9%, respectively. The weight of the faeces of 1st, 2nd, 3rd and 4th instar larvae were 0.012 ± 0.004, 0.047 ± 0.018, 0.0114 ± 0.023 and 0.274 ± 0.045 gm, respectively. DOI: http://dx.doi.org/10.3329/dujbs.v23i2.20090 Dhaka Univ. J. Biol. Sci. 23(2): 109-117, 2014
Floristic account of Boldha garden, Dhaka: Class - Hepaticopsida and Bryopsida
Authors: Rahman Md Saidur , Khatun Hamida
Published: August 2014

The Boldha garden, Dhaka, is rich in Bryophyte flora because of its special micro?environment. The present paper on Hepaticopsida and Bryopsida includes an account of 32 species under 12 genera, 10 families and 8 orders. A short taxonomic description of each species with locations, date of collection, name of collectors and alphabetic arrangement of taxa are provided. DOI: http://dx.doi.org/10.3329/dujbs.v23i2.20094 Dhaka Univ. J. Biol. Sci. 23(2): 147-156, 2014
Propagation, antibacterial activity and phytochemical profiles of Litsea glutinosa (Lour.) C. B. Robinson
Authors: Haque Tahmina , Uddin Mohammad Zashim , Saha Mihir Lal , Mazid Md Abdul , Hassan Md Abul
Published: August 2014

The propagation, antibacterial activity and phytochemical profiles of Litsea glutinosa have been focused. Percentage of viable seed was 70 by tetrazoliumchloride staining technique, while germination rates were 75, 70, 55 and 20% in clay loam soil, clay loam: compost, compost and sand, respectively. Propagation of basal cutting in clay loam soil under the sun was faster than the apical stem cuttings. Both the ethanolic and water soluble extracts of the leaves and bark showed against Escherichia coli, Enterobacter intermedium, Salmonella sp., Staphylococcus aureus and Staphylococcus epidermis. Phytochemical profiling of the bark of L. glutinosa showed the presence of a number of secondary metabolites including steroids and terpenoids. The isolated compounds from ethanolic bark extract (T?1 and T?3) were identified as stigmasterol and ??sitosterol, respectively by comparing the 1H?NMR data of the isolated compounds with that of the published data. DOI: http://dx.doi.org/10.3329/dujbs.v23i2.20096 Dhaka Univ. J. Biol. Sci. 23(2): 165-171, 2014
Detection of Giardia lamblia in children by microscopy, ELISA and real time PCR assay
Authors: Ahmed Tahmina , Khanum Hamida , Barua Priyanka , Arju Tuhinur , Uddin Muhammed Salah , Haque Rashidul
Published: August 2014

Conventional microscopy, ELISA and Real Time PCR showed Giardia lamblia in a total of 4470 asymptomatic and 423 symptomatic faecal samples from urban slum children of 13 ? 60 months age old. ELISA showed more sensitivity (88.88%) and specificity (90.91%) than microscopy (6.5% sensitive and 100% specific). The prevalence of G. lamblia infection among asymptomatic children was 37.93% by microscopy and 76.11% by ELISA. The prevalence was 7.03, 38.91 and 66.49 by microscopy, ELISA and Real Time PCR in symptomatic children, respectively. The highest prevalence (80.95%) of infection was found in symptomatic children between 49 and 60 months old. Peak prevalence among asymptomatic children was found in March, 2012 (39.39%) and among symptomatic children in September, 2012 (88.88%). Giardia lamblia infection was higher (71.03%) in male than in female children (60.26%). DOI: http://dx.doi.org/10.3329/dujbs.v23i2.20100 Dhaka Univ. J. Biol. Sci. 23(2): 197-204, 2014
Diabetes and macrovasculopthy: Double trouble!
Authors: Rahman Sayeeda
Published: August 2014

DOI: http://dx.doi.org/10.3329/seajph.v3i2.20032 South East Asian Journal of Public Health Vol.3(2) 2013: 1-3