bluuebunny/crossref_metadata_2025_split huggingface dataset:
Minimization of cost and congestion management using interline power flow controller
Authors: Velayutham Uma , Ponnusamy Lakshmi , Venugopal Gomathi 
Published: September 2016

Purpose
The purpose of this paper is to optimally locate and size the FACTS device, namely, interline power flow controller in order to minimize the total cost and relieve congestion in a power system. This security analysis helps independent system operator (ISO) to have a better planning and market clearing criteria during any operating state of the system.

Design/methodology/approach
A multi-objective optimization problem has been developed including real power performance index (RPPI) and expected security cost (ESC). A security constrained optimal power flow has been developed as expected security cost optimal power flow problem which gives the probabilities of operating the system in all possible pre-contingency and post-contingency states subjected to various equality and inequality constraints. Maximizing social welfare is the objective function considered for normal state, while minimizing compensations for generations rescheduling and maximizing social welfare are the objectives in case of contingency states. The proposed work is viewed as a two level problem wherein the upper-level problem is to optimally locate IPFC using RPPI and the lower-level problem is to minimize the ESC subjected to various system constraints. Both upper-level and lower-level problem are solved using particle swarm optimization and The performance of the proposed algorithm is tested under severe line outages and has been validated using IEEE 30 bus system.

Findings
The proposed methodology shows that IPFC controls the power flows in the network without generation rescheduling or topological changes and thus improves the performance of the system. It is found that the benefit achieved in the ESC due to the installation of IPFC is greater than the annual investment cost of the device. ISO cannot achieve minimum total system cost by merely rescheduling generators. Instead of rescheduling, FACTS devices can be used for compensation by achieving minimum cost. IPFC can be used to compensate the congested lines and transfer cheaper power from generators to consumers.

Originality/value
Operational reliability, financial profitability and efficient utilization of the existing transmission system infrastructure has been achieved using single FACTS device. Instead of using multiple FATCS devices, if a single FACTS device like IPFC which itself can compensate several transmission lines is used, then in addition to the facility for independently controlled reactive (series) compensation of each individual line, it provides a capability to directly transfer real power between the compensated lines. Hence an attempt has been made in this paper to incorporate IPFC for relieving congestion in a deregulated environment. However, no previous researches have considered incorporating compensation of multi-transmission line using single IPFC in minimizing ESC. Thus, in this paper, the authors indicate how much the ESC is reduced by installing IPFC.
Radiation pattern synthesis using a chaotic beamforming algorithm
Authors: Jovanović Ana , Lazović Luka , Rubežić Vesna 
Published: September 2016

Purpose
The purpose of this paper is to use the proposed algorithm for the fast adaptation of the antenna array radiation pattern on the particular scenario of the incoming signals. The fitness function to be minimized includes the precise estimation of signals’ arrival angles, setting the deep nulls in the directions of the interfering signal, the reduction of the main lobe’s width and the reduction of side lobes.

Design/methodology/approach
Unlike conventional adaptive algorithms, the proposed algorithm allows synthesis of radiation patterns in the case of a larger number of incident desired and interfering signals. The proposed method also reduces the width of the dead zone.

Findings
In this paper a comparison of the results obtained from the chaotic beamforming algorithm with the results obtained by using the Sequential Quadratic Programming method is presented.

Originality/value
The chaotic beamforming algorithm is proposed here. It is based on the optimization of the least mean square and on the variable step-size least mean square algorithms, using chaos theory for synthesis of the radiation pattern of the linear antenna array.
Grey wolf optimization based parameter selection for support vector machines
Authors: Eswaramoorthy Sathish , Sivakumaran N. , Sekaran Sankaranarayanan 
Published: September 2016

Purpose
The purpose of this paper is to tune support vector machine (SVM) classifier using grey wolf optimizer (GWO).

Design/methodology/approach
The schema of the work aims at extracting the features from the collected data followed by a SVM classifier and metaheuristic optimization to tune the classifier parameters.

Findings
The optimal tuning of classifier parameters lowers errors due to manual elucidation and decreases the risk in human perceptions and repeated visual dignosis.

Originality/value
A novel, GWO based tuning algorithm is used for SVM classifier, which is implemented in classifying the complex and nonlinear biomedical signals like intracranial electroencephalogram.
Particle swarm optimization for the design of square loop frequency selective surfaces considering a model of dielectric effective permittivity
Authors: Rodriguez Barrera Mario A. , Carpes Jr Walter Pereira 
Published: September 2016

Purpose
The purpose of this paper is to present the results of a particle swarm optimization (PSO) method applied in the design of a square-loop frequency selective surface (FSS) via the equivalent circuit model (ECM), considering the dielectric effective permittivity as a variable in the optimization problem.

Design/methodology/approach
In the optimization process considered, besides the FSS square loop geometric parameters, the thickness and relative permittivity of dielectric material used as support are included as variables in the search space, using for this a model of dielectric effective permittivity introduced by the authors in a previous work.

Findings
Square loops were designed and the obtained results were compared with designs reported in literature for applications in wireless local area network and long-term evolution 4G systems. The low computational cost is remarkable as well as the acceptable accuracy obtained with the proposed approach. The PSO method results were implemented with the ECM and compared with those obtained via Ansys – high frequency structure simulator commercial software simulations.

Originality/value
The lack of a model of dielectric effective permittivity for the ECM causes a restricted search space in the stochastic FSS design process limited to only geometric parameters, as it is reported in the available literature. The proposed approach simplifies and makes more flexible the design process, and allows guiding the FSS design to unit cell surface and/or dielectric thickness of small dimensions.
Design of a high gain equilateral triangular microstrip patch antenna array (ETMPAA) on FR4 substrate using microstrip feed
Authors: Alagarsamy Manikandan , Sangareswaran Uma Maheswari , Dhanaraj P. 
Published: September 2016

Purpose
The purpose of this paper is to discuss and analyze a microstrip feed equilateral triangular microstrip array antenna (ETMPAA) that is proposed for S band (3 GHz) applications.

Design/methodology/approach
The ETMPAA comprises three equilateral triangular patches with equal distance. The size of the antenna is 49.4 mm (0.0494 m)×18.4 mm (0.184 m). The proposed antenna has been designed by etching triangular shape structure on glass epoxy substrate (FR4).

Findings
The simulated result shows that ETMPAA has the impedance bandwidth of 900 MHz and the bandwidth can be achieved by controlling the gap between the patch antennas. The antenna is fed by microstrip feeding technique. Design of an antenna using advanced design system (ADS), based on finite element methods (FEM) has been used to analyze and optimize the antenna. Based on the measurement results an antenna proposed with maximum efficiency and maximum gain.

Originality/value
This paper fulfils an identified need to study a microstrip feed ETMPAA is proposed for S band (3 GHz) applications.
An approximate solution of the MHD flows of UCM fluids over porous stretching sheets by rational Legendre collocation method
Authors: Saadatmandi Abbas , Sanatkar Zeinab 
Published: September 2016

Purpose
The purpose of this paper is to develop an efficient method for solving the magneto-hydrodynamic (MHD) boundary layer flow of an upper-convected Maxwell (UCM) fluid over a porous isothermal stretching sheet.

Design/methodology/approach
The paper applied a collocation approach based on rational Legendre functions for solving the third-order non-linear boundary value problem, describing the MHD boundary layer flow of an UCM fluid over a porous isothermal stretching sheet. This method solves the problem on the semi-infinite domain without transforming domain of the problem to a finite domain.

Findings
This approach reduces the solution of a problem to the solution of a system of algebraic equations. The numerical values of the skin friction coefficient are presented and analyzed for various parameters of interest in the problem. The authors also compare the results of this work with some recent results and show that the new method is efficient and applicable.

Originality/value
The method solves this problem without use of discrete variables and linearization or small perturbation. Also it was confirmed by the theorem and figure of absolute coefficients that this approach has exponentially convergence rate.
Body-force modeling for aerodynamic analysis of air intake – fan interactions
Authors: Thollet William , Dufour Guillaume , Carbonneau Xavier , Blanc Florian 
Published: September 2016

Purpose
The purpose of this paper is to explore a methodology that allows to represent turbomachinery rotating parts by replacing the blades with a body force field. The objective is to capture interactions between a fan and an air intake at reduced cost, as compared to full annulus unsteady computations.

Design/methodology/approach
The blade effects on the flow are taken into account by adding source terms to the Navier-Stokes equations. These source terms give the proper amount of flow turning, entropy, and blockage to the flow. Two different approaches are compared: the source terms can be computed using an analytic model, or they can directly be extracted from RANS computations with the blade’s geometry.

Findings
The methodology is first applied to an isolated rotor test case, which allows to show that blockage effects have a strong impact on the performance of the rotor. It is also found that the analytic body force model underestimates the mass flow in the blade row for choked conditions. Finally, the body force approach is used to capture the coupling between a fan and an air intake at high angle of attacks. A comparison with full annulus unsteady computations shows that the model adequately captures the potential effects of the fan on the air intake.

Originality/value
To the authors’ knowledge, it is the first time that the analytic model used in this paper is combined with the blockage source terms. Furthermore, the capability of the model to deal with flows in choked conditions was never assessed.
Influence of a plasma actuator on aerodynamic forces over a flat plate interacting with a rarefied Mach 2 flow
Authors: Coumar Sandra , Joussot Romain , Parisse Jean Denis , Lago Viviana 
Published: September 2016

Purpose
The purpose of this paper is to describe experimental and numerical investigations focussed on the shock wave modification induced by a dc glow discharge. The model is a flat plate in a rarefied Mach 2 air flow, equipped with a plasma actuator composed of two electrodes. The natural flow without actuation exhibits a shock wave with a hyperbolic shape. When the discharge is on, the shock wave shape remains hyperbolic but the shock wave is pushed forward, leading to an increase in the shock wave angle. In order to discriminate thermal effects from purely plasma ones, the plasma actuator is then replaced by an heating element.

Design/methodology/approach
The experimental study is carried out with the super/hypersonic wind tunnel MARHy located at the ICARE Laboratory in Orléans. The experimental configuration with the heating element is simulated with a code using the 2D full compressible Navier-Stokes equations adapted for the rarefied conditions.

Findings
For heating element temperatures equal to the flat plate wall surface ones with the discharge on, experimental and numerical investigations showed that the shock wave angle was lower with the heating element, only 50 percent of the values got with the plasma actuator, meaning that purely plasma effects must also be considered to fully explain the flow modifications observed. The results obtained with the numerical simulations are then used to calculate the aerodynamic forces, i.e. the drag and the lift. These numerical results are then extrapolated to the plasma actuator case and it was found that the drag coefficient rises up to 13 percent when the plasma actuator is used, compared to only 5 percent with the heating element.

Originality/value
This paper matters in the topic of atmospheric entries where flow control, heat management and aerodynamic forces are of huge importance.
Particle shape effects on Marangoni convection boundary layer flow of a nanofluid
Authors: Ellahi R. , Zeeshan A. , Hassan Mohsan 
Published: September 2016

Purpose
The purpose of this paper is to study the particle shape effects on Marangoni convection boundary layer flow of a nanofluid. The paper aims to discuss diverse issues befell for the said model.

Design/methodology/approach
The work undertaken is a blend of numerical and analytical studies. Analytical and numerical solutions of nonlinear coupled equations are developed by means of Mathematica package BVPh 2.0 based on the homotopy analysis method.

Findings
The velocity of nanofluid decreases by increasing particle volume friction and similarity parameters. With the increase in particle volume friction and similarity parameter, temperature profile is correspondingly enhanced and decline. The lowest velocity and highest temperature of nanofluid is cause by needle- and disc-shaped particle. Consequence for interface velocity and the surface temperature gradient are perceived by numeric set of results. It is found that the interface velocity is declined by increasing particle volume friction and volume concentration of ethylene glycol in the water. The minimum interface velocity is seen by needle-shaped particle and 30 percent concentrations of ethylene glycol. With increase in volume friction and size of particle, the behaviors of surface temperature gradient are found decreasing and increasing function, respectively. The maximum heat transfer rate at the surface is achieved when we chose sphere nanoparticles and 90 percent concentrations of ethylene glycol as compared to other shapes and concentrations.

Originality/value
This model is investigated for the first time, as the authors know.
Beveridge and his pursuit of an ideal economics: why did he come to accept Keynes’s ideas?
Authors: Komine Atsushi 
Published: September 2016

PurposeThe purpose of this paper is to examine two (accidental and inevitable) reasons why W.H. Beveridge, who in 1936/1937 had rejected all of the elements of Keynes’s General Theory, came to accept it enthusiastically in the 1940s.Design/methodology/approachThe paper answers this question in three steps. First, it distinguishes apparently changeable factors in Beveridge’s views, from consistent ones. Second, it looks for factors of the latter type in his three goals for economics. Third, it compares his goals with those of Keynes.FindingsBeveridge’s three goals overlapped with Keynes’s ideals for economics and economists, and this is not historically accidental: economics should be useful as a basis for verification by fresh observations (as an exact science); economic knowledge should be useful in business and policy-making processes (for new kinds of educated professions); and economic studies requires a wide range of related subjects (a liberal education).Research limitations/implicationsThis paper attempts to clarify the cognitive assumptions of the two economists. This clarification can contribute to understanding the process and reasons behind Beveridge’s acceptance of Keynesian economic theory and policies on a theoretical level.Originality/valueThis paper examines previously ignored reasons for Beveridge’s acceptance of Keynesian economics. Moreover, it suggests certain pre-analytic assumptions concerning the co-existence of social insurance and full employment policies. This perspective will be useful for historians of economics and the welfare state.
Adam Smith: egalitarian or anti-egalitarian?
Authors: Niimura Satoshi 
Published: September 2016

Purpose
There has been controversy about whether Adam Smith is an economic egalitarian because he expresses at least four distinct views on equality, in two of which, he approves of inequality, and in the other two, he claims otherwise. The purpose of this paper is to isolate and consider these four views carefully to understand Smith’s complete position on equality.

Design/methodology/approach
The paper examines Smith’s apparently contradictory views on equality as his evolving response to Hume and Rousseau’s critiques of inequality.

Findings
Hume and Rousseau criticize any income inequality that is disproportionate to industry between the rich and poor. Smith’s response to their critiques evolves over time. In his initial response in early writings, he defends inequality in a civilized society by comparing it with a poor primitive society. However, in his later response in The Wealth of Nations, he eventually accepts Hume and Rousseau’s critiques of inequality. According to Smith, an equal and opulent society will evolve. A primitive society is equal but poor. In contrast, an existing civilized society is opulent but unequal. In each society, equality and opulence are incompatible. However, Smith believes that a future civilized society will fully achieve both equality and opulence.

Originality/value
The paper analyses both historically and theoretically the comprehensive structure of Smith’s egalitarian views.
Transparency and accountability lost?
Authors: Haraldsson Mattias 
Published: September 2016

Purpose
The aim of this paper is to explore the causes of variations in financial accounting and disclosure practices in a municipal setting highly influenced by governance reforms – the Swedish municipal waste management sector. This focus is motivated by the claim that recent governance reforms have made the organization of public services delivery more diversified and fragmented, which may have had a negative effect on transparency and accountability.

Design/methodology/approach
To document the accounting and disclosure practices of the Swedish solid waste management organizations, a questionnaire approach was selected. The study uses a conceptual theoretical framework that complements the basic variables considered to influence public sector financial accounting and disclosure practices with factors such as competition and municipal governance forms.

Findings
The results show that compliance accounting and disclosure transparency to some extent have different antecedents and that the external environment, including market competition, size and economic input, influences both. The governance forms, on the other hand, only influenced compliance accounting (negatively and positively) and not the willingness to disclose information in general. The overall conclusion is that changes to the economic and institutional context mixed with different municipal governance forms introduces a multiplicity of forces that makes the accounting practices themselves diversified and fragmented and not necessarily only in a “negative” direction.

Practical implications
From a policy perspective the results indicate that the changing institutional and organizational environment has not been matched by attention to, and regulation of, reporting structures that secure external vertical accountability processes. The general implication for future regulations should therefore be to recognize the influence of different economic and institutional forces and develop accountability models that enable and preserve the benefits of governance reform initiatives without losing accountability and transparency.

Originality/value
Few prior quantitative studies have theoretically related municipal accounting and disclosure practices to factors such as market competition and popular municipal governance forms (municipal corporation, regional cooperation, outsourcing, etc.). Knowledge of how reforms might influence municipal accounting practices might benefit future policy decisions on accountability models with aim of enable and preserve the benefits of governance reform initiatives without losing accountability and transparency.
Integrative contingency-based framework of MCS: the case of post-secondary education
Authors: Pomare Carol , Berry Anthony 
Published: September 2016

Purpose
The purpose of this paper is to explore whether and how changes in the management control systems (MCS) of post-secondary institutions (PSIs) in Western Canada can be described and explained in terms of formal and informal MCS; and whether and how changes in the MCS of PSIs in Western Canada can be described and explained in terms of an integrative contingency-based framework of MCS based on regulatory accountability systems, competitive markets and organizational culture?

Design/methodology/approach
The empirical research was undertaken with an exploratory mixed design. The first phase involved descriptive univariate and bivariate statistics as well as non-parametric statistics computed on data from annual reports and financial statements of 46 PSIs in Western Canada to quantitatively explore MCS. The second phase involved the grounded theory (GT) analysis of annual reports of 46 PSIs in Western Canada to qualitatively explore formal MCS in relation to changes in contingencies. The third phase involved the GT analysis of 20 semi-structured interviews of senior managers from PSIs in Western Canada to qualitatively explore informal MCS in relation to formal MCS and changes in contingencies.

Findings
The research showed that emphasis on formal MCS in Western Canadian PSIs resulted in biased compliance within informal MCS. The exploratory research also demonstrated that the distinction between formal and informal MCS was better understood in a wider framing of MCS in terms of regulatory accountability systems, competitive markets and organizational culture.

Originality/value
This research led to the elaboration of an exploratory theoretical framework to subsume the distinction between formal and informal MCS into an integrative contingency-based framework of MCS.