bluuebunny/crossref_metadata_2025 huggingface dataset:
RESEARCH OF APARTMENT BUILDINGS‘VENTILATION SYSTEMS AND ANALYSIS OF SYSTEM RENEWAL OPTIONS / DAUGIABUČIŲ GYVENAMŲJŲ NAMŲ VĖDINIMO TYRIMAI IR SISTEMŲ ATNAUJINIMO GALIMYBIŲ ANALIZĖ
Authors: Valančius Kęstutis , Paulauskaitė Sabina , Motuzienė Violeta
Published: October 2015

The paper presents experimental study of apartment buildings' ventilation parameters which was carried out during the heating season. The results show that the existing apartment buildings often don‘t guarantee the hygienic conditions that are directly related to the indoor air ventilation. Also article contains an analysis of possibilities to upgrade the ventilation systems of apartment buildings. Four ventilation systems‘ upgrade options were examined. The economic analysis showed that according to the economic aspect the best solution for mechanical ventilation in the typical apartment houses is a centralized ventilation system which operates in combination with ground heat pump when supply ducts are mounted on the building facade, and extraction takes place at existing natural ventilation system channels. Straipsnyje pateikiami daugiabučių gyvenamųjų namų vėdinimo parametrų eksperimentiniai tyrimai, kurie buvo atlikti šildymo sezono metu. Tyrimų rezultatai rodo, kad esamuose daugiabučiuose namuose dažniausiai nėra užtikrinamos higieninės sąlygos, kurios yra tiesiogiai susijusios su šių namų vėdinimu. Taip pat straipsnyje pateikiama daugiabučio vėdinimo sistemų atnaujinimo galimybių analizė. Ekonomiškai išnagrinėti keturi vėdinimo sistemų atnaujinimo variantai. Atlikus ekonominę analizę, nustatyta, jog ekonominiu aspektu geriausias mechaninio vėdinimo sprendimas tipiniame daugiabučiame name yra centralizuota vėdinimo sistema, veikianti kombinuotai su gruntiniu šilumos siurbliu, kai tiekiamieji ortakiai montuojami ant pastato fasadų, o ištraukimas vyksta esamais natūralios vėdinimo sistemos kanalais.
ENERGY BALANCE EVALUATION OF INDUSTRIAL BUILDINGS WITH AN OFFICE COMPLEX / GAMYBINIO PASTATO SU ADMINISTRACINIU KORPUSU ENERGIJOS BALANSO TYRIMAS
Authors: Bielskus Juozas , Šiupšinskas Giedrius , Rimdžius Dovydas , Kuzminskas Kęstutis , Gruzda Šarūnas
Published: October 2015

While evaluating the energy savings potential in buildings of different function we face the energy balance of current situation evaluation problem. Generally the data of energy flows quantities and the nature of their dynamics are agregated and do not reflect the indicators of the achieved microclimate. Therefore this article analyses the energy balance following the example of one-year data collection analysis in a company’s building complex. The investigated problem is evaluated by the system analysis approach, i.e. the analysed object system is divided into separate subsystems which have been simulated individually but considering the subsystems joint relations in the system. The methods applied in this work are heat and mass balance of separate subsystems and statistical analysis method. The statistical analysis was used for the evaluation of the statistical reliability of the accumulated indicators (temperature, relative humidity, etc.).
Siekiant įvertinti energijos taupymo potencialą skirtingos paskirties pastatuose susiduriama su esamos padėties energijos balanso įvertinimo problema. Dažniausiai duomenys apie energijos srautų kiekius ir jų kitimo pobūdį yra suminiai ir netspindi komforto rodiklių. Todėl šiame straipsinyje kaip pavyzdį pateikiant vienos įmonės pastatų komplekse atliktą vienų metų duomenų kaupimo tyrimą analizuojamas detalesnio energijos balanso sudarymas. Vertinimas atliktas sisteminės analizės požiūriu, tai yra objekto sistema buvo skaidoma į atskiras posistemes, kurios buvo atskirai modeliuojamos energyPRO kompiuterine programa, atsižvelgiant į šių posistemių tarpusavio ryšį. Šio darbo metu taikyti atskirų posistemių šilumos ir masės balansų bei statistinės analizės metodai. Statistinė analizė buvo taikoma vertinant metus trukusių matavimų sukauptų rodmenų (temperatūros, santykinės drėgmės ir kt.) statistinį patikimumą.
RESEARCH OF SMALL HOUSE HOLD SEWAGE TREATMENT PLANT WORKING / MAŽO BUITINIŲ NUOTEKŲ VALYMO ĮRENGINIO DARBO TYRIMAI
Authors: Valeikaitė Ernesta , Mažeikienė Aušra
Published: October 2015

In Lithuania centralized municipal wastewater treatment technologies are applied quite effectively, but there is little evidence of the functioning of individual small wastewater treatment plants. The paper presents the small device AT-6, in the city of Vilnius, and the treated sewage results (BDS7, nitrate, ammonium, total nitrogen, total phosphorus and phosphate concentrations). Studies have shown that treated sewage indicators based on ammonium and nitrate ion concentrations are good. These substances are 2–10 times less than it can be in drinking water according to HN 24: 2003. Concentration of phosphates in the treated sewage ranged from 3.57 to 9.33 mg/L and exceeded the indicators, which were compared. The phosphorus environmental aspect is not dangerous, because treated sewage is not discharged into surface water bodies. Dealing from the pattern of biological indicators and enzymatic activity, the quality of activated sludge is good. Treated sewage does not impair the natural state.
Lietuvoje centralizuoto buitinių nuotekų valymo technologijos yra taikomos gana efektyviai, tačiau beveik nėra duomenų, kaip veikia maži individualaus buitinių nuotekų valymo įrenginiai. Straipsnyje analizuojami mažu buitinių nuotekų biologinio valymo įrenginiu AT-6 pasiekiami pagrindiniai išvalymo rodikliai (BDS7, nitratų azoto, amonio azoto, bendrojo azoto, bendrojo fosforo ir fosfatų fosforo koncentracijos). Nuotekų išvalymo laipsnis pagal amonio azoto ir nitratų azoto koncentracijas yra aukštas. Šių medžiagų yra 2–10 kartų mažiau, nei gali būti geriamajame vandenyje pagal HN 24:2003. Fosfatų fosforo (PO4-P) koncentracijos išvalytose nuotekose svyravo nuo 3,57 iki 9,33 mg/l ir viršijo rodiklius, su kuriais buvo lygintos. Šis fosforas aplinkosaugainiu aspektu yra nepavojingas, nes nuotekos nėra išleidžiamos į paviršinį vandens telkinį. Sprendžiant iš rastų biologinių indikatorių ir fermentinio aktyvumo, veikliojo dumblo kokybė yra gera. Išvalytos nuotekos nepablogina gamtos būklės.
CBRN EOD Capability as a Current Challenge for Czech Armed Forces Chemical Corps
Authors: Zahradníček Radim , Skaličan Zdeněk
Published: October 2015

The article describes CBRN EOD capability, which is one of the developed areas within the scope of the Czech Armed Forces Chemical Corps. It depicts CBRN EOD in the context of operational use of chemical troops, introduces an option of appropriate task force and mentions basic operational requirements to ensure safe proceeding at the incident site. It highlights the importance of common training and interoperability amongst participating units. The article derives from NATO written sources, national operational procedures and expert views of interested persons.
New species in the Drosophila ananassae subgroup from northern Australia, New Guinea and the South Pacific (Diptera: Drosophilidae), with historical overview
Authors: McEvey Shane , Schiffer Michele
Published: October 2015

Three new Drosophila species are described in the ananassae subgroup from Australia, New Guinea and Samoa. Drosophila pandora sp.nov. and D. anomalata sp.nov. are morphologically very similar to the circumtropical species D. ananassae and are classified together in the ananassae complex. For 40 years D. pandora has been incorrectly identified as D. ananassae in the Australian tropics. The results of a detailed examination of the morphology of 1649 wild-caught ananassae-like male specimens, sampled from 60 islands from Southeast Asia to French Polynesia and 94 localities of northern Australia and western, central and eastern New Guinea, are reported. Comparisons are made with Afrotropical and Oriental samples to confirm the identity of D. ananassae s.str. Photomicrographs of the male terminalia and sex combs of D. ananassae and D. pandora from geographically distant localities demonstrate the stability of the important diagnostic characters. Males of D. anomalata, known only from three localities in Queensland, Australia, have a unique bobbing behaviour when courting, and they have the lowest total number of teeth in the sex combs. The distinctive male terminalia of related species D. atripex, D. monieri, D. ochrogaster, D. parapallidosa and D. pallidosa are figured for comparison. Among them, a species from Samoa, closely resembling the Fijian endemic species D. phaeopleura, is described here as Drosophila schugi sp.nov.
Liberté et dépendance pendant la révolution du Rio de la Plata. Esclaves et affranchis dans la construction d’une citoyenneté politique (1810-1820)
Authors: Entin Gabriel , Candioti Magdalena
Published: October 2015

Dans cet article, nous analysons les rapports entre l’esclavage et la construction de la citoyenneté politique lors de la révolution du Rio de la Plata (1810-1820), à partir de la figure de l’affranchi ( liberto ). À cette fin, nous mettons à l’épreuve l’hypothèse suivante : la citoyenneté révolutionnaire a créé une liberté comme dépendance. Cet oxymore force à pluraliser la compréhension de la liberté républicaine dans les révolutions du monde atlantique. Loin du binôme homme libre/esclave, nous explorons plusieurs formes de liberté et d’esclavage pendant la première décennie révolutionnaire. L’affranchi (un ancien esclave libéré ou le fils libre d’une esclave) acquiert alors une liberté spécifique qui se traduit par son incapacité à exercer la liberté commune du fait de sa dépendance vis-à-vis d’un patron (soit un individu, soit l’État). Nous combinons une approche diachronique de l’affranchi dans la Rome antique et dans la monarchie hispanique avec une étude synchronique de cette figure dans le cadre de la révolution du Rio de la Plata, à travers l’analyse des mesures de libération contrôlée des esclaves ; des politiques de limitation de la citoyenneté des descendants d’Africains ; de la participation des affranchis à l’armée ; et des recours en justice des esclaves afin d’obtenir leur liberté. Notre objectif consiste à expliquer l’apparente contradiction entre l’omniprésence du discours sur la liberté comme non-domination et le maintien de l’esclavage au Rio de la Plata jusqu’en 1860.
Wavelet Transform Modulus Maxima Decay Lines
Authors: Kyprianou Andreas , Tjirkallis Andreas
Published: October 2015

An important task in structural health monitoring (SHM) is that of damage detection under varying environmental and operational conditions. Structures, under varying environmental conditions, change their mass, elasticity and damping properties whereas changing operational conditions cause changes to excitations. A damage detection methodology implemented in these circumstances faces serious challenges since changes to structural behaviour imparted by environmental or operational conditions could be wrongly attributed to damage. The part of a damage detection decision algorithm that removes environmental and operational effects is called normalization. In this chapter a normalization methodology that is based on the similarity between continuous wavelet transform maxima decay lines is presented. This methodology is implemented on both simulated and experimental data. Simulated data were obtained from a three degree of freedom system. Varying environmental conditions were simulated by temperature dependent stiffness parameters and operating conditions by changing the colour of random excitation. Experimental data were obtained from damaged cantilever beams that were subjected to random excitations of different colour and varying temperatures.
Structure Impact Localization Using Emerging Artificial Intelligence Algorithms
Authors: Xu Qingsong
Published: October 2015

Extreme learning machine (ELM) is a learning algorithm for single-hidden layer feedforward neural networks. In theory, this algorithm is able to provide good generalization capability at extremely fast learning speed. Comparative studies of benchmark function approximation problems revealed that ELM can learn thousands of times faster than conventional neural network (NN) and can produce good generalization performance in most cases. Unfortunately, the research on damage localization using ELM is limited in the literature. In this chapter, the ELM is extended to the domain of damage localization of plate structures. Its effectiveness in comparison with typical neural networks such as back-propagation neural network (BPNN) and least squares support vector machine (LSSVM) is illustrated through experimental studies. Comparative investigations in terms of learning time and localization accuracy are carried out in detail. It is shown that ELM paves a new way in the domain of plate structure health monitoring. Both advantages and disadvantages of using ELM are discussed.
Nonlinear Ultrasonics for Early Damage Detection
Authors: Munoz Rafael , Rus Guillermo , Bochud Nicolas , Barnard Daniel J. , Melchor Juan , Ruano Juan Chiachío , Chiachío Manuel , Cantero Sergio , Callejas Antonio M. , Peralta Laura M. , Bond Leonard J.
Published: October 2015

Structural Health Monitoring (SHM) is an emerging discipline that aims at improving the management of the life cycle of industrial components. The scope of this chapter is to present the integration of nonlinear ultrasonics with the Bayesian inverse problem as an appropriate tool to estimate the updated health state of a component taking into account the associated uncertainties. This updated information can be further used by prognostics algorithms to estimate the future damage stages. Nonlinear ultrasonics allows an early detection of damage moving forward the achievement of reliable predictions, while the inverse problem emerges as a rigorous method to extract the slight signature of early damage inside the experimental signals using theoretical models. The Bayesian version of the inverse problem allows measuring the underlying uncertainties, improving the prediction process. This chapter presents the fundamentals of nonlinear ultrasonics, their practical application for SHM, and the Bayesian inverse problem as a method to unveil damage and manage uncertainty.
Process Window for the Embedding of Eccentric Steel-Reinforcing Elements in the Discontinuous Composite Extrusion Process
Authors: Dahnke Christoph , Foydl Annika , Levin Eilina , Haase Matthias , Tekkaya A. Erman
Published: October 2015

The process of discontinuous composite extrusion offers the possibility for the centric and eccentric embedding of steel reinforcing elements into an aluminium profile. Thereby, the process is influenced by various parameters, which can lead to certain types of processes failures. Three characteristic types of process failures – cavities, local plastic deformation and rotation – have been identified. According to these influencing factors and based on the process window for the discontinuous centric embedding of cylindrical reinforcing elements in rods, a process window for the eccentric embedding of steel reinforcing elements was developed.
The Lubrication Properties of Microbial Cells and their Biopolymers
Authors: Redetzky Marvin , Rabenstein Andreas , Seidel Benedikt , Brinksmeier Ekkard
Published: October 2015

Many machining operations e.g. turning, milling or grinding are dependent on the application of water-based metalworking fluids (MWF) which contribute significantly to their high level of performance. MWF in-use are exposed to a microbial contamination, which leads to a deterioration of water-based MWF components and can cause a premature failure of the whole coolant system. Expensive monitoring and the addition of biocides are needed to maintain the MWF quality and to reduce the microbial load, regardless of the potential risk for health and environment. To overcome these limitations, the paradigm shift of using microorganisms as a replacement for conventional MWF is investigated in this paper. Microbial cell components and some microbial inclusions are comparable to conventional MWF components like e.g. fatty acids or sulfur compounds. Due to this fact, it is possible to create a regenerative system on a microbiological basis for the substitution of conventional MWF components. In preliminary tribological investigations the basic lubrication properties of microorganisms and their potential as a replacement for conventional MWF were shown. The presented approach intends to investigate the influence of microbial cell counts, cells size and extracellular polymeric substances (EPS) on the lubrication behavior respectively. The results of the tribological tests show that especially microorganisms with a big cell volume or a high EPS productivity exhibit superior Brugger-values (up to 174%) compared to a highly concentrated conventional MWF (emulsion 10%) and indicate the great potential of microorganisms as a replacement for conventional MWF.
Tolerances and Measuring Strategies in the Virtual Process Chain for Spot Welded Structures; Substitute Modeling and Automating the Calibration Procedure
Authors: Ackert Patrick , Schwarz Christian , Mauermann Reinhard , Landgrebe Dirk
Published: October 2015

This paper presents a method with whose help it is possible, to quickly and precisely predict the influence that thermal spot-shaped joining processes has on the dimensional stability of complex component structures even in early planning phase. The welding distortion is calculated in the context of reduced computing time, based upon an experimentally calibrated mechanical substitute model. This expands existing approaches of substitute models and defines both an experimental and numerical procedure for creating adequate calibration samples. In turn, this makes use of the potential obt ained for standardizing the experimental basis for calculating and modelling the distortion to automatically carry out painstaking calibration processes in simulations and experiments in future based upon mathematical model functions. Finally, the limits to applying the substitute spot welding model are verified with reference to its predictability using a complex joining situation of a car body construction.
Media, Data and Energy Transmission in Machine Tool Spindles: An FE Analysis of Implementation Possibilities
Authors: Slavov Vasil , Kimmelmann Martin , Heisel Uwe
Published: October 2015

The intention of the research project „BaZMod“ [1], funded by the Federal Ministry of Education and Research (BMBF), is to develop connections for additional cyber-physical modules, such as intelligent tools, actuators and measuring systems, to machine tools. At present, everybody is talking about such intelligent systems, known under the catchword “Industry 4.0”. Using simulations, it is analysed in this paper how the media, data and energy transmission within the spindle unit can be expanded. An FE model of a spindle unit is created and validated with experimental data by solving an optimisation problem. Then transmission concepts and design solutions are suggested with respect to transmitting media, data and energy through the spindle shaft. In addition, it is presented how the necessary changes in design affect the static and dynamic system behaviour.
Approach to Calculating Lateness along Linear and Converging Material Flow Structures
Authors: Grigutsch Michael , Nywlt Johannes , Felix Carolin
Published: October 2015

Manufacturing enterprises are currently competing in an environment characterised by shortening product life cycles, an increasing diversity of variants, and an ever-evolving globalisation. The resulting dynamism leads to steadily increasing expectations regarding the logistical performance which have to be met by enterprises in order to remain successful in the market. In this context, schedule reliability is of crucial importance. At the same time, diversity and complexity of value-added processes obscure the interdependency of logistical objectives and the possibilities of influencing them. This is where logistical models help to still describe the correlations. Such a logistical model is developed in this paper. It contributes to calculate the lateness distribution and, thus, the schedule reliability along linear and converging material flows.
Highly Iterative Product Development Process for Engineering Projects
Authors: Diels Frederic , Rudolf Stefan , Schuh Günther
Published: October 2015

Many companies are exposed to the challenge to fulfill constantly growing heterogeneous costumer requirements and simultaneously deliver the highest quality standards for their products. One way to face these challenges is the highly iterative product development approach. The content of this approach is the division of the current development process in many short and iterative sub processes (sprints). This procedure enables a regular involvement of the customer in the development process and an early validation of the development status which jointly results in costumer-specific and marketable products. As a consequence of this short-cycled approach the requirements for the practiced process of development projects change fundamentally. However, most companies do not know how this new short-cycle development process has to look like for their daily project work. This is due to the fact that most published papers just deal with the description of how the highly iterative methods look like, however, without considering the challenges an implementation in a producing company involves. This paper aims at the presentation of a standard approach for the handling of highly iterative product development projects.
Three General Determinants of Support-Systems
Authors: Weidner Robert , Karafillidis Athanasios
Published: October 2015

Different research institutes and companies are developing technical systems to support or assist people at work and in daily life. The technical systems can be used for a wide range of different applications. Moreover, the systems have different forms with respect to their application. This paper will analyse and classify different forms of such systems in a general manner. The classification procedure will be illustrated by exemplary solutions.
Analysis of Drawbead Behaviour for Sandwich Sheets in Sheet Forming Simulation
Authors: Li Siu Ping , Güner Alper , Tekkaya A. Erman
Published: October 2015

Lightweight sandwich sheets represent an alternative in the framework of body lightweight construction. They are made of metal face sheets which form a shear-resistant bond with the thermoplastic core layer. The present work describes the drawbead behavior of sandwich sheets and how it can be modelled in a numerical simulation. Drawbeads are used to control the rate of material flow into the die cavity and are located in the binder area. In the numerical simulation they are either modelled as physical drawbeads or replaced by an equivalent drawbead in which a certain drawbead restraining force (DBRF) is specified as a boundary condition. The values of DBRF can be obtained in a strip test, via numerical simulation or predicted with the aid of a drawbead model. In the current study, strip tensile tests through different physical drawbeads are conducted for sandwich materials. With the obtained variables, restraining forces and thinning values, the results from numerical simulations can be evaluated. Once an optimal simulation approach is found, a parameter study can be conducted to analyze the main influencing factors on drawbead behavior. The results from this study can be leveraged to create a semi-empirical drawbead model.
The Role of Spatial Decision Support System in Regional Business Spatial Community
Authors: Jelonek Dorota , Pawełoszek Ilona , Stępniak Cezary , Turek Tomasz
Published: October 2015

Decision support systems are tools that extend the functionality of management information systems. Similarly, spatial decision support systems (SDSS) enhance the capabilities of geographic information systems (GIS) with analytical modelling capabilities and support processes of spatial decision making. SDSS offer many kinds of spatial analyses, from processing data (as well spatial as other data residing in databases), do intelligent maps and models of different types of phenomena. Regional Busines Spatial Community (RBSC) is the concept of community gathering units responsible for building infrastructure networks and supplying utilities for citizens of a region.The authors try to create the community on the basis of companies and institutions from the territory of the City of Częstochowa. A commonality of all the aforementioned stakeholders is to be the possibility to participate in the shared SDSS with the purpose of planning infrastructure investments on the territory of the city. This paper aims to examine the functionality of accessible GIS and to indicate how they can be enhanced with analytical modeling capabilities for the needs of the considered community.
On Analysis of RFID Technology Application in Warehouses
Authors: Kadłubek Marta
Published: October 2015

Radio Frequency Identification is a technology which is developing fast now while taking into account the area of the automatic identification of goods. In the paper, there is presented RFID as one of the latest and most promising logistics technologies. There have been indicated the RFID essence, analyzed the support for warehousing processes in the selected surveyed company and examples of the ways of using RFID application in the selected warehousing processes of the selected sectors.
The Efficiency of ERP Systems Implementing in a Learning Organization
Authors: Kot Sebastian , Štefko Róbert , Dragon Przemysław
Published: October 2015

In contemporary world it is hard to imagine corporations, which are able to function without applying well-developed IT systems supporting the business administration. The degree of their use and usefulness depends largely on the course of the process of the implementation of new tools in a learning organization, which every company seeking new solutions undoubtedly become. In the this article authors try to direct attention on the effectiveness of introducing ERP systems in corporations with particular reference to appearing problems. Their correct identification, classification and moving to the foreground these most essential lets for effective management of the whole implementation, minimizing risks associated with possible mistakes.
Functionalities of Construction Process Management Software
Authors: Łobaziewicz Monika
Published: October 2015

A dynamic development of IT applications automating external processes based on a B2B model refers to a variety of enterprises, including construction companies. Due to the high variability of data during the construction processes performance and the need of a continuous data bases supplied with current data, construction companies expect a good, multifunctional and efficient system - a B2B platform that supports the exchange of data between the ERP system, perceived as an operational layer, and modules responsible for the design, cost estimation, monitoring and control of construction processes implemented in the headquarters and directly on the building site, including the cooperation with subcontractors. The main aim of this article is to present the results of research focused on software functionalities currently available on the market which support a construction process. Ultimately, the results will be used to identify functional gaps in existing software for the construction industry. Then, the functional architecture will be designed containing standard and specialized components that will be the basis for the creation of B2B system OPTIbud.
Application of Frid’s Knowledge Management Model to an Industrial Enterprise
Authors: Caganova Dagmar , Szilva Ivan , Bawa Manan
Published: October 2015

This paper was carried out with an aim to use a modified knowledge management model, that could provide a knowledge management tool that would ensure decreased downtimes, error rates and could enhance knowledge transfer for a company. This research involved quantitative assessment in measuring knowledge management success by using designed methodologies accompanied by data collection from the quality control department. The results of this research were the measurement of the knowledge management tool success.
Determinants of the IT Systems Choice for Supporting Logistics Activities in Enterprises
Authors: Ślusarczyk Beata
Published: October 2015

Advanced computer systems played an important role in economic life for a long time. We can notice it in all aspects of business operations, including logistics. IT systems are important not only in the logistics activities of individual operators, but they also improve activities within integrated supply chains. The article focuses on the proper selection of IT system for logistics operations. It presents a comparison of selected IT systems dedicated to logistics: their range of functionalities and features, as well as the ability to use it in specific types of enterprises. The main aim of the article is to analyze the suitability of each ERP systems in two main areas of logistics: storage and transport. The author also attempts to select optimal solution for a particular economic operator.
The Use of Information and Communication Technologies in Polish Enterprises in Years 2010-2014
Authors: Sroka Mariusz
Published: October 2015

The article presents statistical research results concerning the application of ICT in Polish enterprises in years 2010 – 2014. Particular attention was paid to the number of enterprises (according to size classes) which use computers and Internet access in their business activity. Moreover, the Author discusses the types of Internet connections which are most frequently applied in Polish enterprises including the percentage of mobile access. Furthermore, the paper presents the degree to which such services as EDI, e-government, cloud computing as well as ERP and CRM systems are used by Polish enterprises to exchange information outside and inside them. It also compares the number of enterprises which purchased information and telecommunication equipment and the height of those expenses. The study ends with the comparison of the use of ICT in Polish and EU enterprises.
Mobile Banking in the Opinion of Users of Banking Applications in Poland
Authors: Chmielarz Witold , Łuczak Konrad
Published: October 2015

The objective of this article is to present and analyze the findings of a survey concerning mobile banking services offered by commercial banks to individual clients. The present study conducted by the authors examines the use of banking products and services offered in the mobile channel and the opinions of individual customers on the subject. The findings presented in the article focus on mobile banking applications offered by universal banks in Poland available for mobile devices running the Android, iOS and WindowsPhone operating systems. The paper presents general assumptions of the study, description of the methodology and research sample as well as the analysis of the obtained findings and their discussion. The quantitative study was conducted on a selected sample of respondents with the application of a standardized evaluation method used for the assessment of selected banking products and services.
Impact of Production of Electric Appliances on the High-Tech Development in Poland
Authors: Dzida Ismena , Szajt Marek
Published: October 2015

The article refers to the issues related to the development of high-tech industry. The text describes the history of the beginning of its development that as well as the main factors that determine its origins that development and location. Scientific description highlights the importance of high-tech industry. It is the cooperation of scientific knowledge with technological capabilities of the twenty-first century and a reasonable use of the opportunities offered by financial institutions while using the modern infrastructure. aim of this work is to identify the role of high-tech industry in the economy of European countries, especially Polish. The description illustrating the situation of the world technology helps decide the place of Poland in technological reality. Large differences in the political burden of the past significantly delayed the Polish industry. The positives of the current situation of Polish industry are constantly increasing expenditures on research and development and the use of the possibilities offered by EU funds for the financing of innovative projects. The existence of technology parks and special economic zones in Poland described in the article also brings with it the opportunities for the development of high-tech in the future.
Concept of Information Strategy of Virtual Organization with Using the Cloud Computing Solutions
Authors: Dziembek Damian , Bajdor Paula
Published: October 2015

Dynamic changes in the environment with constant technological developments, influence the emergence of new forms of conducting business. One of the important forms of conducting a contemporary market activity, becomes a model of virtual organization. Generally, virtual organization is a collective of independent, specialized and often geographically dispersed business units (eg. enterprises, divisional parts of companies, institutions, individuals), combining their resources and forming the cooperation for the realization of a particular purpose.The main factor enabling the cooperation of subjects, grouped within the frame of virtual organization, are a variety of resources and ICT tools (Information and Communication Technology). High efficiency and effectiveness of ICT, requires the adoption of specific information strategies of virtual organization. Currently, the Cloud Computing is an increasingly popular service model, which provides and lets for ICT use. The aim of the article is to present information strategy of VO, based on the Cloud Computing model. To achieve that ambitious objective, at the beginning of the article, the VO outline and ICT’s role in its activity, is presented. Then, referring to the M.J. Earl’s frame, a information strategy of VO was discusses, together with the indication of the role and place of Cloud Computing in VO’s information strategy. Article tops the list of national and international Cloud Computing solutions, that can support information strategy for virtual organizations.
Integration of IT Applications in Local Government Computer Systems
Authors: Grabara Janusz , Modrak Vladimir , Bunaciu Mircea , Streltov Roman
Published: October 2015

Integration of IT applications in companies has always been a hot topic in recent years, leading to the creation of a new working style in the software: Enterprise Application Integration. To present the essence and very detailed image of this, is a main purpose of the paper. After a literature review, authors have described a chosen system, which is being used by the local government entities. The first part of the article traces the evolution of embedded computing applications management companies and the problems that were inevitable faced during the integration efforts. Then, in the article, the infrastructure of EAI is presented, with the detailed description of its: Front, Back, Middle and Web Office areas. In the practical part of the article the structure of Romanian Local Government is presented. And the last of part of the article is derived to Document Management System – a system used in local government authorities. The summary contains authors’ own considerations and conclusions.
The Use of Smart Grid Technology in the Management of Household Energy
Authors: Grondys Katarzyna
Published: October 2015

The aim of the paper is the analysis of the development of electricity management in households using modern information technology - Smart Grid. The experiences of the countries which are crucial for the global economy, such as China or the USA, prove that Smart Grid can be used not only in business but also it can be applied in households. Due to the significant share of households in the use of electricity, combining them into a network using modern IT is to optimize the flow of energy in accordance with the current consumption, providing an opportunity of household management. The application of Smart Grid is also another step in the development of the concept of information society and it can enable the transition to a sustainable power system.
Improvement of the Process of Information Management in Maintenance - A Case Study
Authors: Jasiulewicz-Kaczmarek Małgorzata , Piechowski Mariusz
Published: October 2015

Effective planning, coordination, and scheduling of the maintenance function can be, and for many years was, accomplished without computer support. However, in these days of high technology and rapid, economical data communication, job preparation is accomplished far more efficiently with the support of a sound maintenance management information system. Fast, flexible access to reliable, current, and comprehensive information is vital if planners and managers are to control the maintenance function on the basis of knowledge rather than intuition. The paper presents a maintenance information management system designed for the needs of the healthcare company. Due to its universality, the system can read information from different sources, appropriately process, interpret and deliver it to the right people in the most appropriate manner.
Atti Sociali
Authors: Italiana Società Entomologica
Published: October 2015

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Is the central corneal thickness of diabetic patients thicker than that of non-diabetics’ eyes?
Authors: Mathebula Solani D. , Segoati Tshegofatso M.
Published: October 2015

The purpose of the study was to evaluate central corneal thickness in diabetic patients and to compare the results with controls without diabetes mellitus. Sixty-five diabetic patients (65 eyes) constituted the study group, and 50 eyes were from the healthy control group (50 non-diabetic patients). The study group was subdivided into group 1 (no diabetic retinopathy, n = 35), group 2 (mild to moderate nonproliferative diabetic retinopathy, n = 20), and group 3 (proliferative diabetic retinopathy, n = 10). Central corneal thickness measurements in microns were determined using ultrasound pachymetry. The mean central corneal thickness was significantly greater in the study group (567.14 μm ± 14.63 μm) than in the control group (531.14 μm ± 5 μm). In addition, the mean central corneal thickness was found to be greater in group 3 (577 μm ± 12 μm) than in groups 1 (562 μm ± 13 μm) and 2 (566.86 μm ± 15 μm), but the difference did not reach statistical significance. We found that the mean central corneal thickness for diabetic patients was thicker than that of the healthy controls. Thicker central corneas associated with diabetes mellitus should be taken into consideration when obtaining accurate intraocular pressure measurements in diabetics.
Rigidity and Height Bounds for Certain Post-critically Finite Endomorphisms of ℙN
Authors: Ingram Patrick
Published: October 2015

The morphism f:ℙN→ℙN is called post–critically finite (PCF) if the forward image of the critical locus, under iteration of f, has algebraic support. In the case N = 1, a result of Thurston implies that there are no algebraic families of PCF morphisms, other than a well-understood exceptional class known as the flexible Lattés maps. A related arithmetic result states that the set of PCF morphisms corresponds to a set of bounded height in the moduli space of univariate rational functions. We prove corresponding results for a certain subclass of the regular polynomial endomorphisms of ℙN for any N.
Non-discrete Frieze Groups
Authors: Beardon Alan F.
Published: October 2015

The classification of Euclidean frieze groups into seven conjugacy classes is well known, and many articles on recreational mathematics contain frieze patterns that illustrate these classes. However, it is only possible to draw these patterns because the subgroup of translations that leave the pattern invariant is (by definition) cyclic, and hence discrete. In this paper we classify the conjugacy classes of frieze groups that contain a non-discrete subgroup of translations, and clearly these groups cannot be represented pictorially in any practicalway. In addition, this discussion sheds light onwhy there are only seven conjugacy classes in the classical case.
Corneal Cross-linking can halt the Progression of Keratoconus, but what is the Best Approach to Treatment?
Authors: Raiskup Frederik , Hillen Mark
Published: October 2015

There are a number of treatment options for keratoconus, but only corneal collagen cross-linking (CXL) appears to halt the progression of the disease. To guarantee effective cross-linking, CXL treatment involves removal of the corneal epithelium prior to riboflavin application and ultraviolet light illumination to ensure that riboflavin reaches the collagen in the stroma—epithelial-on cross-linking (‘Epi-off’ CXL). Several methods of ‘Epi-on’ (transepithelial) CXL have been proposed, as keeping the corneal epithelium intact should be less painful and help avoid other CXL-associated adverse events. The evidence to date is that Epi-off CXL remains the most effective method of strengthening the cornea and slowing keratoconus progression—but transepithelial methods are gaining ground.

How to cite this article

Raiskup F, Hillen M. Corneal Crosslinking can halt the Progression of Keratoconus, but what is the Best Approach to Treatment? Int J Kerat Ect Cor Dis 2015; 4(2):47-51.
Long-term Stability of Ectasia in a Young Patient with Asymmetric Keratoconus
Authors: Corrêa Rosane de Oliveira , Canedo Ana Laura Caiado , Beildeck Rozalia , Salomão Marcella Quaresma , Politis Penelope Burle de
Published: October 2015

Purpose

To report the clinical course of a typical young patient presenting with asymmetric keratoconus (KC), that demonstrates that stabilization of the ectatic process is possible without cross-linking (CXL) procedure.

Methods

Case report and review of the literature.

Results

A 17-year-old male patient was referred due to the diagnosis of keratoconus. Patient complained of loss of vision in the left eye (OS). Uncorrected distance visual acuity (UDVA) was 20/25+ in the right eye (OD) and 20/80 in the left eye; wavefront-assisted manifest refraction gave best corrected distance visual acuity (CDVA) of 20/20 in OD and 20/40 in OS. The diagnosis of keratoconus was confirmed with Placido disk-based topography (Oculus Keratograph 4), and Pentacam HR corneal tomography (Oculus Optikgeräte GmbH, Wetzlar, Germany). Femtosecond laser-assisted intracorneal ring segment (ICRS) implantation was performed in the left eye and treatment for allergy was prescribed for both eyes, along with patient education and advice not to rub the eyes. After 3 months, significant improvement was observed on UDVA (20/30) and CDVA (20/20) in the left eye. Topometric and tomographic stability of ectasia was observed in the right eye in a 4-year follow-up.

Conclusion

Intracorneal ring segment caused significant regularization of the corneal shape and improvement on visual acuity. Ectasia stability was achieved with no need for CXL, despite the patient's young age. This case raises the point that the indication of CXL for every keratoconic patient should be reconsidered.

How to cite this article

de Oliveira Corrêa R, Canedo ALC, Beildeck R, Salomão MQ, de Politis PB, Ambrósio R Jr. Longterm Stability of Ectasia in a Young Patient with Asymmetric Keratoconus. Int J Kerat Ect Cor Dis 2015;4(2):66-68.
Temperamental variation in learned irrelevance in humans
Authors: Gruszka Aleksandra , Owen Adrian M.
Published: October 2015

Background

Learned irrelevance (LIRR) represents one of the mechanisms of attentional set-shifting and refers to the inability to attend to, or to learn about, any aspect of a stimulus previously experienced as irrelevant. Although it has been extensively studied in the context of clinical populations, not much is known about LIRR effects in relation to normal variation in individual differences. The present study was designed to assess how temperamental factors may modulate LIRR.

Participants and procedures

Sixty-eight healthy volunteers performed a visual discrimination learning task modelled after Wisconsin Card Sorting Test. To test the susceptibility to learned irrelevance, participants were expected to shift their attention either to a dimension that prior to the extra-dimensional shift was completely irrelevant, or to a dimension that was previously partly correlated with reinforcement. Temperamental traits were assessed using the Formal Characteristics of Behaviour-Temperament Inventory (Zawadzki & Strelau, 1997). Intelligence level was stratified according to Raven’s Advanced Progressive Matrices (Raven, Raven, & Court, 2003).

Results

Low level of Briskness and high level of Perseverance were related to enhanced susceptibility to LIRR. High levels of Activity and Emotional Reactivity were related to the poorer performance on the extra-dimensional set-shifting. No effects of other temperament characteristics or intelligence on LIRR were observed.

Conclusions

The results confirm a strong variation in LIRR related to individual differences in temperament, which appears to be unrelated to DA function. Our results highlight the importance of considering individual differences in studies on cognitive control.
The work of a probation officer: Does personality matter?

Stress in the work of a probation officer. A theoretical and empirical study.
 Łukasz Wirkus,
Impuls, Kraków 2015, 226 pp
Authors: Piotrowski Andrzej
Published: October 2015

In 2015, Łukasz Wirkus’s monograph titled ‘Stress in the work of a probation officer. That is why it needs to be emphasized that Łukasz Wirkus’s book is the first thorough Polish study of the issue of probation officers’ job stress, even more valuable if we consider the fact that it is an empirical study. The author stresses that the relation between a probation officer and their subject is a very peculiar one, often fortified by enormous individual costs. It is connected with the nature of a probation officers’ work but their personality construct, which evaluates the effectiveness of the undertaken tasks, is also extremely important in this context.