Purpose This research aims to identify the optimal configuration of investment which leads firms their best competitive positions, considering degree concentration in market. Design/methodology/approach The methodology was quantitative and based on secondary data with samples 124, 106 90 from environment classified as perfect competition, monopolistic competition oligopoly, respectively. Propos...

In this paper, a hybrid inverse distance weighted (IDW) and the imperialist competitive algorithm (ICA) was proposed for grade estimations in mining projects. Indeed, coefficients of IDW equation, power, influence were modified by applying ICA algorithm. For this, an example solved using IDW, ordinary kriging, IDW-ICA. After successfully validating IDW-ICA, iron grades estimated Baba Ali mine, ...

abstract: this paper presents dynamic modelling and control of a linear prismatic series of elastic actuator. the capability of generating large torques is why this actuator is increasingly used in human-assistive robotic systems. due to having human in the loop, the actuator requires precise control. a fractional pid controller known for its improved performance is used for the control, due to...

the spatial distribution of petrophysical properties within the reservoirs is one of the most importantfactors in reservoir characterization. flow units are the continuous body over a specific reservoirvolume within which the geological and petrophysical properties are the same. accordingly, anaccurate prediction of flow units is a major task to achieve a reliable petrophysical description of a...

this paper presents a novel indirect adaptive power system stabilizer (pss) via a developed synergetic control methodology and fuzzy systems. fuzzy system is utilized in an adaptive scheme to estimate the system using a nonlinear model. the synergetic control guarantees robustness of the controller and makes the controller easy to implement because of using a chatter free continuous control law...

In post-colonial India the female foeticide, a practice evolved from customary female infanticide of pre-colonial and colonial period, committed though in separate incidents, has made it almost a unified wave of mass murder. It does not fulfil the widely accepted existing definition of genocide but the high rate of abortion of legitimate girl-foetus by Indian parents makes their crime a kind of...

We consider max coloring on hereditary graph classes. The problem is defined as follows. Given a graph G = (V, E) and positive node weights w : V → (0,∞), the goal is to find a proper node coloring of G whose color classes C1, C2, . . . , Ck minimize k ∑ i=1 maxv∈Ci w(v). We design a general framework which allows to convert approximation algorithms for standard node coloring into algorithms fo...

The last several decades have seen a global resurgence of academic engagement with decolonial, postcolonial, anti-colonial, and southern scholarship as way to confront the persisting modern/colonial legacies in education. This special issue brings together collection nine articles critically interrogate (de)colonial entanglements comparative education by addressing three questions. Who benefits...

The history of disease and health in colonial Sri Lanka has been largely ignored. Historians of colonial economic and social policies in that country have produced a deluge of materials without mentioning the impact of colonial labour policy on the health of the indigenous people.' Meanwhile, even those who have written on the history of medicine in Sri Lanka have not fully accounted for coloni...