bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel IPR Calculation Technique to Reduce Oscillations in Time-Lagged Network-Reservoir Coupled Modeling Using Analytical Scaling and Fast Marching Method
Authors: Zhang Yanbin , Seth Gaurav , Chen Jianping
Published: February 2017

Surface network and subsurface reservoir coupled modeling adds value to asset development assessments when gathering networks and processing units impose significant constraints on production and injection rates. However, it is often difficult and time-consuming to reduce or avoid oscillations in production forecasts that often occur when the surface network and reservoir model are coupled together time step lagged. We present a new technique for IPR calculations which significantly reduces or eliminates these oscillations and provides smoother more realistic production forecasts from time-lagged coupled modeling without significant user intervention. This technique has three steps. First, the conventional IPR curve is calculated by solving the well model in the reservoir simulator multiple times over a range of flow rates or bottom-hole pressures (BHP). Second, a dynamic "region of influence" (ROI) is generated for each well using the Fast Marching Method (FMM). Third, the average pressure in the ROI is used to analytically scale the conventional IPR curve. The analytical scaling process honors the well operating point in the reservoir model at the time of coupling, maintains its existing non-linear shape, and shifts the no-flow BHP of the conventional IPR curve to the average pressure in the ROI.

The conventional IPR curve mentioned earlier only considers the cells in which the well is completed and assumes no change in pressure in these cells until the next coupling time step. As a result, it typically predicts well productivity indices (PI) that are too high so that the coupled model forecasts oscillatory production rates over time. Previous studies have identified this problem and proposed improvements by considering regions around wells for IPR calculations. These methods usually require advancing and winding back flow simulations in reservoir or sub-domain models multiple times between coupling time steps. This implementation requires access to reservoir simulation code and the run time cost can be high and in some cases prohibitive. In contrast, the new technique presented in this paper can be implemented independent from the reservoir simulation code and the run time cost is low. In addition, previous studies provide no clear guideline on how to define the region for a particular well and how the region should change over time. In this paper, we use FMM to define the ROI dynamically around wells, so that its extent depends on simulation time, the coupling time interval and reservoir heterogeneity. We believe the ROI obtained this way reasonably captures the region of the reservoir which most significantly influences well performance until the next coupling time step. Therefore, the average pressure in the ROI provides a good estimate of the no-flow BHP which is used as the basis to adjust the IPR curve. We demonstrate the application of this new technique in a field example.
Bi-Objective Optimization of Well Placement and Controls Using StoSAG
Authors: Lu Ranran , Forouzanfar Fahim , Reynolds A. C.
Published: February 2017

When geological uncertainty is considered in production optimization problem, robust optimization on a set of plausible reservoir models is essential. We consider biobjective optimization where the two objectives are to find the optimal trajectories and/or control settings of injectors and producers that maximize the expected value of the life-cycle net-present-value (NPV) and minimize the risk where the risk is defined as the minimum NPV achieved for any realization. We consider cases where the vector of design (optimization) variables includes either well trajectories or well controls or both sets of variables. The trajectory of each well is parametrized in terms of the (x,y, z) coordinates of the two endpoints of the well segment whereas well controls are represented by the pressure or rates for all control steps. In this work, the optimization is performed using a slightly modified version of a new ensemble-based optimization algorithm known as StoSAG (stochastic simplex approximate gradient). We analyzed the inferiority of the simultaneous optimization using the StoSAG method compared to the sequential optimization scheme and proposed an iterative simultaneous procedure where one iteration of trajectory update is followed by one iteration of control update. In this work, the iterative simultaneous optimization procedure outperforms the sequential procedure (a complete well trajectory optimization followed by a complete control optimization), based on the numerical results of a channelized water flooding reservoir. We also focus on developing efficient implementations of the lexicographic optimization method to find a reasonable trade-off between the expected NPV and the risk. The biobjective optimization is firstly implemented to the well placement optimization problem to illustrate the efficiency of using the proposed splitted StoSAG search direction for the augmented Lagrangian function compared to the basic StoSAG search direction. Besides the channelized reservoir, an inclined gas flooding reservoir loosely modelled after the Oseberg field, is also tested. Finally, the biobjective optimization to both well controls and trajectories are carried out combining the lexicographic method with both the iterative simultaneous procedure and the sequential procedure. Furthermore, in order to avoid less attractive well trajectory solutions where wells are too close together, the constraints that minimum distance between any two well trajectories is greater than or equal to a prescribed distance are also enforced in this paper. To the best of our knowledge, this paper presents the first illustration of the joint optimization of well placement and control with the StoSAG method, considering minimum well spacing constraints. Also the implementation of a computationally efficient decoupled StoSAG method to the biobjective optimization problem is discussed.
Hysteresis Modeling of Capillary Pressure and Relative Permeability by using the Theory of Plasticity
Authors: Yoon H. C. , Zhou P. , Kim J.
Published: February 2017

We investigate a robust and systematic modeling approach for hysteretic capillary pressure and relative permeability by using the theory of plasticity. Plasticity and hysteresis exhibit both irreversible physical processes, and theory of plasticity has been developed, encompassing general behavior of irreversibility. Focusing on immiscible two-phase flow, we mainly investigate mathematical analysis of stability, and find that the method based on the plasticity can provide well-posedness (thermodynamic stability) and algorithmic stability (B-stability). Then, the numerical scheme of this study can stably model several cyclic drainage-imbibition processes. The plastic parameters can track and compute history-dependent properties. In numerical simulation, we apply the algorithm of the 1D isotropic/kinematic hardening plasticity to simulation of gas-water flow. For weak and strong capillarity, the modeling yields strong numerical stability even for several drainage-imbibition processes. We also identify differences between with and without hysteresis, particularly in capillary pressure. Thus, the hysteresis modeling based on the theory of plasticity is promising for numerical simulation of strong hysteresis.
General Implicit Coupling Framework for Multi-Physics Problems
Authors: Rin Ruslan , Tomin Pavel , Garipov Timur , Voskov Denis , Tchelepi Hamdi
Published: February 2017

We present a new framework for solving coupled multi-physics problems. The objective is to develop a platform where different coupling strategies for the simulation of complex physical processes can be employed with great flexibility in order to find an optimal - in terms of robustness and computational efficiency - strategy for a given problem. The new simulator is modular; each module represents a particular physics process, such as compositional, thermal, poromechanics, reactions, wells, and surface facilities. The platform provides seamless coupling between the physics modules without resorting to conditional branches and intermediate interface and treats terms that are coupled across multiple physics modules efficiently. The different modules can be coupled with each other in a sequential or fully coupled manner, and different solution strategies can be applied to different modules. This allows investigation of complex coupling strategies that have not been studied before. Examples of target problems include modeling compositional-thermal EOR processes in both conventional and unconventional resources with tight coupling to nonlinear poromechanics. The paper addresses the design of the framework and provides details of its implementation.
Multigrid Reduction for Coupled Flow Problems with Application to Reservoir Simulation
Authors: Wang Lu , Osei-Kuffuor Daniel , Falgout Rob , Mishev Ilya , Li Jizhou
Published: February 2017

Applications in geosciences, such as reservoir modeling, continue to grow in both size and complexity. Simulations are increasingly complex as they couple more physical phenomena over larger physical domains. As a result, the linear system that arises from the numerical solution of these problems can be challenging to solve by iterative methods. Simulators require advanced algebraic solvers that are robust enough to handle the anisotropies, heterogeneities and coupling between the physical variables, and scalable enough to handle large-scale solution on high performance parallel systems. Multigrid solvers are a class of iterative solvers that are scalable and efficient for solving linear systems that arise from large-scale applications. However, applications with multiple physical unknowns pose a challenge for standard multigrid techniques, particularly when the coupling between the unknowns is strong. In this paper, we present our efforts to develop a multigrid-preconditioned Krylov solver, where the preconditioner is based on the multigrid reduction framework. This preconditioner is designed to represent the coupling between the physical variables of the reservoir modeling equations and account for the underlying physics of the system. Two-stage preconditioners, such as the well-known constrained pressure residual (CPR) approach and its variants like CPR-AMG, have been commonly used in reservoir simulation applications. We discuss how these current solver strategies may be interpreted within the multigrid reduction framework to better understand the different variations. Finally, we present techniques for improving the MGR approach and present results on solver performance on examples from reservoir modeling.
K-Values Based Non-Equilibrium Formulation for Upscaling of Compositional Simulation
Authors: Salehi A. , Voskov D. V. , Tchelepi H. A.
Published: February 2017

Enhanced Oil Recovery (EOR) processes involve complex flow, transport, and thermodynamic interactions; as a result, compositional simulation is necessary for accurate representation of the physics. Flow simulation of compositional systems with high-resolution reservoir models is computationally intensive because of the large number of unknowns and the strong nonlinear interactions. Thus, there is a great need for upscaling methods of compositional processes. The complex multiscale interactions between the phase behavior and the heterogeneities lie at the core of the difficulty in constructing consistent upscaling procedures.

We employ a mass-conservative formulation and introduce upscaled phase molar mobility functions for coarse- scale modeling of multiphase flow. These upscaled flow functions account for the sub-grid effects due to the absolute and relative permeabilities variations, as well as the effects of compressibility. Upscaling of the phase behavior is performed as follows. We assume that instantaneous thermodynamic equilibrium is valid on the fine scale, and we derive coarse-scale equations, in which the phase behavior may not necessarily be at equilibrium. The upscaled thermodynamic functions, which represent differences in the component fugacities, are employed to account for the non-equilibrium effects on the coarse scale. We demonstrate that the upscaled phase-behavior functions transform the equilibrium phase space on the fine scale to a region of similar shape, but with tilted tie- lines on the coarse space. The numerical framework uses K-values that depend on the orientation of the tie-lines in the new non-equilibrium phase space and the sign of upscaled thermodynamic functions.

The proposed methodology is applied to challenging gas-injection problems with large numbers of components and highly heterogeneous permeability fields. The K-value based coarse-scale operator produces results that are in good agreement with the fine-scale solutions for the quantities of interest, including the component overall compositions and saturation distributions.
Fully-Coupled XFEM-EDFM Hybrid Model for Geomechanics and Flow in Fractured Reservoirs
Authors: Ren Guotong , Jiang Jiamin , Younis Rami M.
Published: February 2017

A mixed discretization approach is propsed to adequately resolve fracture system while accurately and efficiently modeling both flow and geomechanics. An extended finite element method (XFEM) is applied to approximate the geomechanics, and an embedded-discrete-fracture model (EDFM) is used to model the multiphase flow equations. The two schemes are fully coupled, and the time discretization for flow is fully-implicit. Moreover, a hybrid fracture representation concept is employed where the dual porosity approach is used in conjunction with the embedded discrete representation in order to capture small-scale fracture networks efficiently.
Numerical Simulation of Dual-Porosity Multiphase Flow Using Poroelasticity Theory
Authors: Eker Erdinc , Uzun Ilkay , Kazemi Hossein
Published: February 2017

Changes in reservoir pore pressure and temperature during injection or production affect rock deformation, which, in turn, causes alteration of porosity and permeability. Specifically, an increase in pore pressure (or a decrease in rock temperature) can create significant rock deformation and increase of the shear stress that could lead to rock fracturing and microseismic activity in the reservoir. Furthermore, porosity and permeability of rocks decrease because of the pore pressure decrease during depletion. Thus, stress-dependent deformation in hydrocarbon bearing shale formations affects the production decline trends. This paper addresses these issues and presents a computationally efficient in-house numerical simulator for poroelastic dual-porosity reservoirs.

The governing transport equations for the fluid flow and rock deformations use two interacting environments consisting of a continuous fracture medium and a discontinuous rock matrix medium. The transport and rock deformation equations are fully-coupled and solved numerically using a stationary coordinate frame. A proper assignment of rock frame modulus, affected by the interconnected fractures, versus the rock matrix modulus is a major focus of this work. The rock frame modulus is smaller than the matrix modulus. The numerical model is compared to a single-phase model and validated with a closed form of analytical solutions.

We used field data from a fractured unconventional reservoir to assess our formulation. The field data includes flow rates and pressures during an extended production period in the Bakken formation, Williston basin in North Dakota. Finally, we conducted a sensitivity analysis to determine the effect of bulk rock deformation on reservoir performance as compared to conventional engineering approaches which utilize pore compressibility without accounting for the bulk rock deformation.
Pembentukan Rapport di Kelas: Analisis Psikologi
Authors: Erawati Muna
Published: February 2017

Abstract: The mastery of Arabic language is fundamental for students of Islamic Higher Education. But, generally student’s score on Arabic test did not support this expectation. Some students reported that they felt inconvenient and insecure on Arabic lesson also with the lecturer. Even though, positive relationship between lecturer and students was important for creating and also keeping student’s motivation in studying Arabic. This study aimed to analyze of rapport building between lecturer and students in classroom context. There were three questions, what kinds of strategy lecturers were applied to build and maintain rapport with students, which factors determine the building of rapport between lecturer and students, and how to describe the mechanism of rapport building between lecturer and student? Using qualitative approach, this study collected data from students and lecturers by questionnaire, observation, and interview. There were nine strategies used by lecturers to build rapport with students. The study found six factors determine the quality of lecturer and students’ rapport.

Abstrak: Penguasaan Bahasa Arab penting bagi calon sarjana dari Perguruan Tinggi Keagamaan Islam. Tetapi, skor tes mereka tidak mendukung harapan ini. Sebagian mahasiswa melaporkan mereka kurang percaya diri, nyaman, dan aman saat mengikuti kuliah Bahasa Arab maupun dalam interaksi dengan dosen pengampu. Padahal perasaan aman dan nyaman tersebut bermanfaat untuk memelihara dan meningkatkan motivasi belajar mahasiswa. Riset ini bertujuan untuk menganalisis pembentukan rapport antara dosen dengan mahasiswa dalam konteks pembelajaran di kelas. Pertanyaan penelitian meliputi, apa sajakah strategi dosen yang diterapkan untuk membentuk rapport, faktor-faktor apa saja yang memengaruhi pembentukan rapport, dan bagaimana mekanisme ter­bentuknya rapport antara dosen dengan mahasiswa? Studi ini menggunakan pendekatan kualitatif, di mana data dikumpulkan melalui teknik kuesioner, observasi, dan interviu. Ada sembilan strategi pembentukan rapport yang ditemukan. Terdapat enam faktor yang memengaruhi pembentukan rapport dosen-mahasiswa.
Faktor-faktor yang Memengaruhi Perilaku Konsumen dalam Bertransaksi di Media Sosial
Authors: Syaiful Irfan Aulia , Sari Anggit Verdaningrum Kumala
Published: February 2017

Abstract: This research is in the area of consumer behavior. Many of these factors can be confusing for company to map consumer behavior into its target market. Therefore, the purpose of this study was to determine the factors influencing consumer behavior transactions in social media. This research using qualitative method. Our subjects involved 5 consumers who make transactions in social media. Techniques of data collection is done by observation and structured interviews, while the data collection tool used as interview guides and recorder. Based on the results it was found that four of these factors influence consumer behavior in social media, in the cultural factors such as between consumers and sellers adjust to each other in the language selection, social factors such as testimonials, offer from a friend, how the seller described the product, personal factors such as convenience at shopping (even when in the bathroom), while psychological factors such as discounts, product packaging and delivery speed.
Abstrak: Banyak faktor yang membingungkan perusahaan dalam memetakan perilaku konsumen yang menjadi targetnya. Penelitian ini berupaya menggambarkan faktor-faktor yang memengaruhi perilaku transaksi konsumen di media sosial. Metode yang digunakan adalah kualitatif yang melibatkan sebanyak 5 orang dengan karakter telah sering melakukan transaksi belanja lewat media sosial. Teknik pengambilan data dilakukan dengan observasi dan wawancara terstruktur. Hasil penelitian menunjuk­kan, ada tiga faktor yang me­me­ngaruhi perilaku konsumen di media sosial. Pertama, faktor budaya seperti antara kesesuaian bahasa antara konsumen dan penjual, faktor sosial seperti testimonial, tawaran dari teman, cara penjual mendeskripsikan produk. Kedua, faktor pribadi seperti kemudahan berbelanja. Ketiga, faktor psikologis seperti diskon, waktu pengiriman, dan pengemasan produk.
Gambaran Ketangguhan Ibu dalam Mengasuh Anak Autis
Authors: Daulay Nurussakinah
Published: February 2017

Abstract: This study aimed to look at the profile picture of hardiness in mothers of children with autism in the city of Medan. A total of 58 mothers were included in this study. Sampling was done by purposive sampling. The method was used to descriptive quantita­tive method. Data were taken using a measuring instrument such as Hardiness scale (Dispositional Resilience Scale/DRS-15). Processing and analysis of statistical data was descriptive, meaning that findings such as demographic data, aspects of hardiness and other additional data will be analyzed in the form of a minimum score, maximum score, mean and standard deviation, in order to illustrate the hardiness profile comprehensively. The results showed that the picture of the strength of the mothers of children with autism in average level. Judging from the hardiness, found that aspects of the commitments had the highest mean score, followed by the control aspect and the aspect of the challenge.

Abstrak: Penelitian ini bertujuan untuk melihat gambaran profil ketangguhan pada ibu yang memiliki anak autis di kota Medan. Sebanyak 58 ibu-ibu dilibatkan dalam penelitian ini. Pengambilan sampel dilakukan dengan purposive sampling. Metode yang digunakan adalah metode kuantitatif deskriptif. Data diambil dengan menggunakan alat ukur berupa skala Ketangguhan (Dispositional Resilience Scale/DRS-15). Cara pengolahan dan analisa data statistik bersifat deskriptif, artinya temuan seperti data demografi, aspek ketangguhan dan data tambahan lainnya akan dianalisa berupa skor minimum, skor maksimum, mean dan standar deviasi, agar dapat menggambarkan profil ketangguhan secara komprehensif. Hasil penelitian menunjukkan bahwa gambaran ketangguhan pada ibu yang memiliki anak autis berada dalam kategori sedang. Ditinjau dari aspek ketangguhan yang dikemukakan oleh Maddi & Kobasha (1980), ditemukan bahwa aspek komitmen memiliki nilai mean tertinggi, kemudian diikuti dengan aspek kontrol dan aspek tantangan. Implikasi penelitian ini sebagai data awal untuk melihat gambaran profil ketangguhan ibu dalam mengasuh anak autis di kota Medan.

Kata kunci: anak autis; ibu; ketangguhan
From urban municipalities to polar bioremediation: the characterisation and contribution of biogenic minerals for water treatment
Authors: Freidman Benjamin L. , Northcott Kathy A. , Thiel Peta , Gras Sally L. , Snape Ian , Stevens Geoff W. , Mumford Kathryn A.
Published: February 2017

Minerals of biological origin have shown significant potential for the separation of contaminants from water worldwide. This study details the contribution of biologically derived minerals to water treatment operations, with a focus on filtration media from urban municipalities and remote cold regions. The results support biofilm-embedded iron and manganese to be the building blocks of biogenic mineral development on activated carbon and nutrient-amended zeolites. The presence of similar iron and manganese oxidising bacterial species across all filter media supports the analogous morphologies of biogenic minerals between sites and suggests that biological water treatment processes may be feasible across a range of climates. This is the first time the stages of biogenic mineral formation have been aligned with comprehensive imaging of the biofilm community and bacterial identification; especially with respect to cold regions. Where biogenic mineral formation occurs on filter media, the potential exists for enhanced adsorption for a range of organic and inorganic contaminants and improved longevity of filter media beyond the adsorption or exchange capacities of the raw material.
Accelerated anaerobic hydrolysis rates under a combination of intermittent aeration and anaerobic conditions
Authors: Jensen T. R. , Lastra Milone T. , Petersen G. , Andersen H. R.
Published: February 2017

Anaerobic hydrolysis in activated return sludge was investigated in laboratory scale experiments to find if intermittent aeration would accelerate anaerobic hydrolysis rates compared to anaerobic hydrolysis rates under strict anaerobic conditions. The intermittent reactors were set up in a 240 h experiment with intermittent aeration (3 h:3 h) in a period of 24 h followed by a subsequent anaerobic period of 24 h in a cycle of 48 h which was repeated five times during the experiment. The anaerobic reactors were kept under strict anaerobic conditions in the same period (240 h). Two methods for calculating hydrolysis rates based on soluble chemical oxygen demand were compared. Two-way analysis of variance with the Bonferroni post-test was performed in order to register any significant difference between reactors with intermittent aeration and strictly anaerobic conditions respectively. The experiment demonstrated a statistically significant difference in favor of the reactors with intermittent aeration showing a tendency towards accelerated anaerobic hydrolysis rates due to application of intermittent aeration. The conclusion of the work is thus that intermittent aeration applied in the activated return sludge process can improve the treatment capacity further in full scale applications.
The Effects of Oil Prices Changes on Output Growth and Inflation: Evidence from Turkey
Authors: GÃœNEY Pelin Ã–GE
Published: February 2017

This paper investigates the effects of oil price changes on output and inflation for the case of Turkey using monthly time series data for the period 1990:1â€“2012:3. Recent studies suggest that oil price changes may have asymmetric effects on the macroeconomic variables. To account for asymmetric effects, we decompose oil price changes into positive and negative parts following Hamilton (1996). Our results show that while oil price increases have clear negative effects on output growth, the impact of oil price decline is insignificant. Similarly, oil price increases have positive and significant effects on inflation. However, oil price declines have not a significant effect on inflation. The Granger causality tests also support these results.
ANALYSIS OF THE DIFFERENT SCALING RULES FOR VALUE AT RISK ANALIZA RÓŻNYCHZASAD SKALOWANIA VAR
Authors: Kyshakevych Bohdan , Kubaj Roman , Yuzvyak Oleh
Published: February 2017

Analysis of the recent research concerning the performance of SRTR rule for VaR scaling as well as other methods such as bootstrap, dependent resampling, non- overlapping periods, independent resampling and different empirical scaling factors were conducted. An importance of the choosing the appropriate method of VaR scaling for solving different financial task, risk analysis and derivatives pricing was stressed in article.
ECONOMIC RESEARCH OF EXCISE DUTY
Authors: Mietule Iveta , Šmukša Lāsma
Published: February 2017

Comparative study of the excise duty (tax) as a fiscal policy instrument and as an item of budget revenue is presented in the article. Excise duty revenues in Latvia are explored in-depth; correlation between the excise duty revenue and specific macroeconomic indicators is assessed. Furthermore, the main taxation tendencies - considering excise duty as an important source of financial resources revenue of the national tax system, an indicator of people living standards, and an important instrument defining price and demand for excise goods - are reviewed in the article.
INSTITUTIONAL DETERMINANTS OF THE QUALITY OF NATIONAL EXPORT
Authors: Petkova Lesia , Marushchak Dariya
Published: February 2017

In the article we analyze the impact of institutional factors on export of innovation in various countries. The components of the Global Innovation Index are important indicators that predict international competitiveness of export, these are, for example, quality of institutions, state of human capital, level of expenditure on research, infrastructure, etc. In this study we examine the influence of economic policies on technical complexity of export.
MAIN SEGMENTS OF MANAGEMENT ACCOUNTING FROM THE POSITION OF INDUSTRIAL ENTERPRISE
Authors: Hushko Serhii , Kengne Yves Merlin , Kotkovskyi Rostyslav
Published: February 2017

The article describes features and relevance of nowadays management accounting for enterprises. The authors define the place and role of management accounting, showing its advantages and differences from business accounting and tax accounting. The research reveals the relevance of management accounting for planning, monitoring and taking rational decisions for the enterprises, as well as the subject and the object of management accounting. It analyzes problems, meaning, prerequisites for the implementation of management accounting for decision making and effective management of an enterprise.
EUROPEAN INTEGRATION PRIORITIES OF UKRAINIAN RAILWAYS IN CONDITIONS OF GLOBALIZATION
Authors: Stasyuk Olga , Pikulyk Oksana
Published: February 2017

Authors determined the main priorities of the Ukrainian railways in the course ofEuropean integration. These priorities areexamined in the context of institutional and infrastructural integration of Ukraine Railway Transport. Authors defined the main tasks of the railway transport of Ukraine within the framework of European integration priorities.
THE TWILIGHT OF STRATEGY ZMIERZCH STRATEGII
Authors: Grabałowski Wojciech
Published: February 2017

The author considers the problem of the possibility and meaning of modeling and building a long-term strategy, in conditions of uncertainty and turbulence of proximal and distant environment of an organization. The strategy is based on the classic assumptions of management sciences. In the article the author cites arguments negating the meaning of such actions, directing thoughts to the ongoing need, significant flexibility of long-term planning and readiness for sudden and unexpected changes dictated by uncertainty and turbulence of phenomena that characterize today's economic, social and political reality.
IMPACT OF LABOUR FORCE MIGRATION ON LATVIA'S ECONOMY
Authors: Arbidane Iluta , Markevica Lāsma
Published: February 2017

Migration of labour force has a significant impact on national economy. The labour force is the most important resource of any country; growing and developed economy is not possible without labour force. The economic crisis of 2008 has been one of the factors influencing fast migration of the labour force and decrease in number of population in Latvia during 2000-2015. Despite the fact that the economic crisis is defeated and the economic situation gradually improves, the number of population has shrunk by 400 000 persons from 2000 until 2015. It is critical to identify reasons of labour migration, factors influencing the process, and its impact on national economy as the country's overall development depends on it. The aim of the research was to study migration of the labour force, influencing factors, and their impact on the national economy of Latvia. Within the research, the factors related to labour migration influencing the national economy of Latvia were analysed. The authors have come to the conclusion that the Latvia's economic crisis and free movement of labour have been the most essential factors causing migration.
MODERN TRENDS OF THE INTERNATIONAL ICT MARKET’S DEVELOPMENT
Authors: Leshchenko Marina , Pasenko Vladislav , Pasenko Oksana
Published: February 2017

The article deals with the main features of international ICT market formation and its development. The fundamentaltrends of ICT development in the global economy are determined. The ICT indicators indifferent areas of the world are given. The basic rates of technological support of ICT developmentare analyzed. The peculiarities of Ukraine’s economy information development are defined; Ukraine’s competitive advantages in the international ICT market arerevealed.
CONSIDERATION OF SPECIFIC FEATURES OF ACTIVITY WHILE IDENTIFYING RISK FACTORS OF BUSINESS FINANCIAL SECTOR
Authors: Yakymchuk Tetyana , Levitskaia Alla
Published: February 2017

The article systematizes risk factors of the financial sector in Ukraine basing on the risk classification for the following groups: strategic, financial, legal, operational and reputational ones. It emphasizes that the financial sector risk factors are to be divided into those arisingwithin bank and non-bank financial institutions, depending on their specific activity.
MODELS OF CRISIS MANAGEMENT IN A CHANGING ENVIRONMENT
Authors: Chizh Vera , Gavrylenko Valentina
Published: February 2017

The articleinvestigates and systematizes the factors affecting the occurrence of the crisisat the enterprise; consideredthe management models of production, logistics, marketing and investment activity of the enterprise, models of financial and ofpersonnel management, which altogether provide the process of anti-crisis management and create conditions for the companywithdrawal from the crisis and refine the efficiency of its activities.
ENTERPRISE HUMAN CAPITAL MANAGEMENT IN THE CONDITIONS OF INNOVATIVE ECONOMY
Authors: Nikolaichuk Olga , Matukova Ganna
Published: February 2017

The article identifies the key challenges of human capital development of domestic enterprises. The comparative analysis of innovative and traditional approaches to human capital management is performed. The organizational and economic mechanism of the enterprise human capital management in the conditions of innovative economy is grounded.
Composition and antimicrobial activity of two Capsicum extracts
Authors: Cerón Carrillo Teresa Gladys , Santiesteban- López Norma Angélica , Acle Mena Ramón Sebastián
Published: February 2017

Pathogenic bacteria, are responsible for most of the foodborne outbreaks. Bacteria became more resistant to antiobiotics throughout years and, nowadays, new and natural agents most be considered for controlling them. Pepper extracts were obtained by drying, cutting, and separating the different parts of the fruit and placing them into a Soxhlet system for further extraction with methanol. Evaluation of the composition, antioxidant activity, and inhibitory concentrations of a blend of Serrano and Habanero pepper extracts against Escherichia coli and Listeria monocytogenes was studied. Habanero whole fruit had the highest capsaicinoid content. Serrano whole fruit had the highest phenolic content and the most flavonoids of all extracts. Habanero seed had the highest antioxidant activity. It was observed that the Habanero whole fruit and its seeds had the lowest minimum inhibitory concentrations of E. coli and L. monocytogenes, respectively. It was also observed that there were synergistic and additive effects when extracts were combined against both bacteria; meaning that there is an increased antimicrobial effect when combined than when each extract was applied individually. The antimicrobial effect depends on the pepper species.
HyperCAL3D, uma ferramenta computacional para o apoio do processo de ensino-aprendizagem de geometria descritiva
Authors: Teixeira Fábio Gonçalves , Dos Santos Sérgio Leandro
Published: February 2017

Este trabalho apresenta o HyperCAL3D, um aplicativo de apoio ao ensino de Geometria Descritiva, através do estudo de objetos sólidos. São descritas a metodologia utilizada para a sua implementação e as principais funcionalidades do aplicativo. Foi realizada uma seleção de conceitos a fim de determinar a estrutura funcional que o software deveria atender. A partir disso, foram modeladas as principais funcionalidades através de processos de Geometria vetorial equivalentes aos utilizados na Geometria Descritiva.  Dentre as principais funcionalidades apresentadas destacam-se: o processo de projeção, a representação de linhas ocultas no modelo tridimensional e nas projeções, vistas auxiliares sucessivas em tempo real e em 3D, representação em épura e o processo de interseção. Todas estas ferramentas são implementadas em um aplicativo que auxilia o processo de aprendizagem dos alunos e os procedimentos didáticos dos professores.
A preferência do público em relação aos recursos gráficos nos livros infantis para crianças na fase de alfabetização
Authors: Serrano Rotava Daiara , Meürer Mary , Christoffoli Angelo Ricardo
Published: February 2017

Este artigo apresenta a pesquisa realizada sobre o projeto gráfico de livros infantis para crianças entre 4 e 7 anos mas que podem ter idades variadas devido as diversas condições e estímulos de aprendizagem. Encontra-se neste artigo a pesquisa, bibliográfica e de campo, referente ao assunto, norteada pelo método indutivo. Para construção do referencial teórico, foram usados fundamentos de psicologia, pedagogia e design gráfico. Como pesquisa de campo foram realizadas entrevistas com pais, dinâmica com crianças e observação em livraria. Analisando as informações obtidas concluiu-se que o público apresenta preferência por livros interativos ou com inovações gráficas, evidenciando que tais recursos são relevantes para despertar o interesse pelo livro infantil. Este artigo é resultado do projeto de pesquisa da FAPESC em parceria com a Universidade do Vale do Itajaí.
Proposta interdisciplinar do design de produtos com a terapia ocupacional no processo de desenvolvimento de produtos para crianças com baixa visão
Authors: Da Silva Roseane Santos , Da Silva Alexandra Ramos Moreira , Calegari Eliana Paula , Teixeira Fábio Goncalves
Published: February 2017

A inovação no design de produtos pode ocorrer na associação do design com outras áreas do conhecimento. Assim, a terapia ocupacional e o design são áreas que podem desenvolver trabalhos em conjunto para uma melhor adequação dos produtos desenvolvidos. Deste modo, o presente trabalho tem como objetivo desenvolver uma linha de produtos para alimentação de crianças com deficiência visual a partir da interdisciplinaridade entre design e terapia ocupacional. Para isso, inicialmente realizou-se um estudo exploratório na literatura existente, buscando refletir a relação entre o design e a terapia ocupacional, o desenvolvimento de produtos e os produtos de tecnologia assistiva direcionados para pessoas com deficiência visual. Para o desenvolvimento do projeto utilizou-se o método de desenvolvimento de projeto de produto (PDP) proposto por Rozenfeld et al. (2006). O presente trabalho perpassa pelas fases do PDP e como resultado, apresenta-se a linha de produtos para alimentação de crianças com deficiência visual, bem como a importância do design se aliar a outras áreas do conhecimento para a busca da inovação. A proposta interdisciplinar pode ser percebida em todo o processo de desenvolvimento de produto, porém se mostrou preponderante na fase inicial das análises realizadas no Projeto Informacional.
Design centrado no humano na definição das diretrizes do projeto de óculos infantil: a contribuição dos oftalmopediatras
Authors: Chaves Iana Garofalo , Taralli Cibele Haddad
Published: February 2017

Para o projeto do produto “óculos”, principalmente para o público infantil, demanda estudos e pesquisas, não somente para resoluções formais e estéticas, mas sim para os  aspectos perceptivos, subjetivos e emocionais, que despertem a afeição deste público. Para isto, aplicando a metodologia do Design Centrado no Humano (DCH), são considerados os seguintes stakeholders: as crianças, os pais, os oftalmologistas, os atendentes das óticas e os designers e fabricantes de óculos. O objetivo deste estudo foi identificar e analisar a contribuição dos oftalmologistas para as diretrizes do projeto de óculos infantil. O método definido para coletar informações com os oftalmopediatras foi a entrevista individual. Inicialmente para tal, foram preparadas tópicos/perguntas guias, e em seguida, foram selecionados e contactados os profissionais e realizadas as entrevistas durante os meses de agosto e setembro de 2013. Posteriormente foi realizada a transcrição, análise do conteúdo coletado e definida as conclusões prévias. De acordo com oftalmologistas, a correção, através dos óculos, dependerá de um bom exame, uma boa confecção da lente e uma armação adequada. Por fim, o produto deve ser abordado de forma positiva, lidando com a patologia de forma natural, mantendo assim a auto-estima da criança em relação ao uso.
Anatomia humana por aplicativos de dispositivos móveis
Authors: Andrade Wiliam Machado , Vieira Milton Luiz Horn , Gonçalves Berenice Santos
Published: February 2017

Em tempos de debates acerca do papel da dissecação cadavérica e sua importância para o ensino de anatomia, quando a prática vem sendo reduzida nos currículos médicos, lojas virtuais de aplicativos para dispositivos móveis passaram a oferecer produtos voltados à apresentação das características do corpo humano. O objetivo do presente texto é discutir a pertinência desses produtos como material de ensino mediado, a partir da análise de um programa voltado à morfologia disponível para tablets e smartphones. Para tanto, a partir de uma abordagem exploratória e descritiva, realizou-se a análise de um exemplo, o aplicativo Visual Anatomy Free,  tendo em vista o potencial instrucional do conteúdo e os elementos de interface, observando se nele se apresentam possibilidades de inclusão de tais meios digitais no contexto dos estudos anatômicos.
Entretenimento hospitalar: um novo conceito de melhoria na qualidade de vida baseada no Design de Interfaces e ambiente computacional hipermídia
Authors: Kalache Vera Maria Jubram , Dos Santos Vagner Rogério
Published: February 2017

Este projeto propõe o uso de uma ferramenta digital para pacientes internados, com o objetivo de amenizar a ansiedade e favorecer a sua recuperação. Para tanto, baseia-se no uso do Entretenimento, por meio de aplicativos fundamentados, escolhidos a partir de uma pesquisa e da análise de profissionais das áreas envolvidas. Os aplicativos são ferramentas de lazer e não devem ser confundidos com práticas terapêuticas. O presente trabalho visa à importância do bem-estar e à qualidade de vida no ambiente hospitalar. Elaborou-se uma proposta de arquitetura de dados para os aplicativos e as interfaces gráficas para cada módulo do dispositivo. As informações foram levantadas durante a observação informal em atividade de voluntariado. A partir delas, foi possível desenvolver e descrever os aspectos de design e as principais vantagens da utilização da tecnologia Tablet, além da sua funcionalidade para o Entretenimento Hospitalar. Implementou-se um módulo conceitual de aplicativo, utilizando informações do módulo de nutrição. Assim, foi possível explorar as relações entre as necessidades emocionais identificadas e as necessidades de entretenimento, lazer e socialização.
A representação do corpo e do movimento: uma análise da interatividade do motion capture
Authors: Prim Gabriel De Souza , Gonçalves Berenice Santos , Vieira Milton Luiz Horn
Published: February 2017

O Motion Capture (MoCap) é um sistema capaz de medir o deslocamento do ser humano. A tecnologia de captura de movimentos pode ser utilizada em produções de entretenimento digital, como os games e as animações 3D. Neste trabalho, busca-se sistematizar os níveis de interatividade possibilitadas a partir do equipamento óptico de captura de movimentos, analisando as variáveis descritas por Steuer (1992) e as definições de interatividade descritas por Lévy (2000), discutindo a interação do homem com o MoCap em termos de possibilidades de apropriação e de personalização, virtualidade, a implicação da imagem do participante e da telepresença. Os resultados permitem uma reflexão sobre o potencial de interatividade do sistema e concluindo com observações do alto potencial de interatividade do equipamento de Motion Capture.
Caracterização tecnológica de cerâmica branca com adição de ossos bovinos
Authors: Guimarães Karoline De Lourdes Monteiro , Araújo Railde De Paula Diniz , Santos Denilson Moreira
Published: February 2017

O descarte de resíduos sólidos é visto como um problema ambiental. À medida em que as cidades crescem e os processos produtivos avançam, é necessário buscar um destino adequado para o descarte ou outras alternativas, como o reaproveitamento em outros processos. É o caso dos ossos bovinos, que apresentam propriedades interessantes, podendo ser reaproveitados e incorporação a outros materiais, como na produção cerâmica. A adição de resíduos à massa cerâmica pode agregar benefícios ambientais, estéticos, econômicos e funcionais. Por isso, neste trabalho foi realizada uma análise das propriedades tecnológicas da cerâmica com adição de ossos bovinos. Os resultados mostram que a composição com 30% de resíduos apresentou os melhores resultados, seguidos das misturas com 35% e 55% de ossos. Conforme características, este material é indicado para uso em objetos planos e em utilitários domésticos, sobretudo quando a cor branca for inerente ao produto.
Indicators for the feasibility of WEEE processing plants in brazil: a relationship between virgin mineral copper ore and the recycling of consumer electronic products
Authors: Cândido Luis Henrique Alves , Kindlein Júnior Wilson , Palombini Felipe
Published: February 2017

This paper assesses the economic analysis of the implementation of WEEE – Waste Electrical and Electronic Equipment Directive – processing plants in Brazil, through the study of potential copper extraction from this secondary source. A comparative approach was performed on its copper grade related to levels of its virgin ore mineral extracted from mines located in Brazil, in the United States and through a global average. The results demonstrate that the amount of copper mass originated from the recycling of disassembly of twenty electronic products ranges from 0.24% to 17.83% of its total mass, with an average of 3.63% of copper. In eighteen of these products, values greater than 0.4% were found, which surpass current levels of copper in ore mines in the USA. In fourteen products, these rates exceed the index of 1.5% copper in the ore, considered the minimum rate for the feasibility of opening new units of copper underground mining in Brazil. Thus, this paper shows the economic analysis that aims to guide on the viability of deploying WEEE processing plants, focusing on the expansion of recycling and reuse of copper by the processing industry.
Arquitetura e moda - ina Bo Bardi e Glória Coelho: possíveis relações entre as áreas e as profissionais
Authors: De Oliveira Natana Aparecida
Published: February 2017

O presente artigo tem como base a interdisciplinaridade e apresenta relações pertinentes entre design, moda e arquitetura, focando nas similaridades durante o processo projetual e de criação de produtos dentro dessas áreas. O objetivo é expor as proximidades e interferências que essas disciplinas possuem em seus processos de criação e como os profissionais atuam em cada segmento e como buscam elementos nas outras disciplinas para criar seus produtos. Também é relevante o esclarecimento de que os profissionais podem e devem buscar referências em outras áreas distintas, pois muitas vezes, elas são mais acessíveis e parecidas do que se imagina. Para o desenvolvimento deste estudo foram investigados e analisados os processos de criação de duas profissionais da área de projeto, a arquiteta italiana, naturalizada brasileira, Lina Bo Bardi e a estilista brasileira Glória Coelho. O intuito deste trabalho é empregar o conhecimento obtido durante os cursos de arquitetura e urbanismo e de design de moda para investigar os processos de criação nos dois campos e fazer uma relação entre os dois mostrando suas semelhanças e contribuições entre si.