The Kraljic matrix has been largely used in many different industries as an efficient tool for developing differentiated purchasing strategies. However, its application on construction industry is unknown, as well as the lack of systematical approach on criteria prioritization which is one of the key issues of the methodology. This paper describes the application of Kraljic matrix on a large co...

The co-operation of several providers is still a challenge for IT Service Management. Currently, established IT Service Management approaches presume a hierachical organisational model. The growing complexity of novel IT services demands the development of alternative ways of provider collaboration. In our PhD thesis we focus on management problems raised by non-hierarchical co-operation in a m...

GNSS receivers provide position information in a convenient way. However, additional orientation information cannot be fulfilled directly by a single antenna receiver up to now. This paper describes an approach for determination of orientation using a single GNSS receiver based only on its own static observations. As estimable base quantity, satellite positions are used as a reference in the mo...

The object of this work is the systematical study of a certain type of generalized Cartan matrices associated with the Dynkin diagrams that characterize CartanLie and affine Kac-Moody algebras. These generalized matrices are associated to graphs which arise in the study and classification of Calabi-Yau spaces through Toric Geometry. We focus in the study of what should be considered the general...

A sentence-final particle (SFP, henceforth) is an optional component for a sentence in Cantonese. Traditionally an SFP contains at least one independent segment. The present study proposes that for sentences without a segmental SFP, sentencefinal intonation can act as a segmentless SFP. Systematical acoustic experiment was conducted based on this assumption. Two cross-cutting dichotomies were c...

Large reduction in emissions of anthropogenic pollutants in a mega city during the week-long holiday gives an opportunity to investigate how the urban air quality reacts to reductions in emission. This study conducted a systematical examination of the “Spring Festival effect” over three consecutive winters in Shenzhen with a population of greater than ten million, and the difference in the conc...

We present a Monte Carlo study of the two-component φ 4 model on the simple cubic lattice in three dimensions. By suitable tuning of the coupling constant λ we eliminate leading order corrections to scaling. High statistics simulations using finite size scaling techniques yield ν = 0.6723(3)[8] and η = 0.0381(2)[2], where the statistical and systematical errors are given in the first and second...

In this article, Cleome quinquenervia (Cleomaceae) species is reported as a new record for the flora of Turkey based on samples collected from Şanlıurfa, Mardin, and Adıyaman provinces. A detailed description particular photographs are given large number specimens collected. The meticulous comparison descriptions C. information obtained in study were made by examining floras nearby countries. a...

Autonomous cleaning robots should completely cover the accessible area with minimal repeated coverage. We present a mostly visionbased navigation strategy for systematical exploration of an area with meandering lanes. The results of the robot experiments show that our approach can guide the robot along parallel lanes while achieving a good coverage with only a small proportion of repeated cover...

This paper studies bipartite consensus problems for continuous-time multi-agent system over signed directed graphs. We consider general linear agents and design both state feedback and dynamic output feedback control laws for the agents to achieve bipartite consensus. Via establishing an equivalence between bipartite consensus problems and the conventional consensus problems under both state fe...