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The Agent Construction Management (ACM) system is one of the new measures adopted in government funded projects in China. The main characteristic of the ACM system is the introduction of an independent professional project management firm into the project management process. The ACM system is still in its trial stage in China and there is no unified qualification assessment system for agent construction organizations. While the importance of the project manager's competence is recognized, previous research also shows that project manager's empowerment is conducive to project performance. The definition of competency is confusing as several terms such as competency/competencies, competence/competences, capability and ability are used interchangeably and inconsistently. Competence is the state or quality of being adequately qualified -- the ability to perform a specific role (e.g. PMI's project manager's competency development framework). While empowerment can be viewed as a relational construct and considered within a more general concept of power, it is also a motivational (or psychological) construct. These two perspectives of empowerment are not independent and motivational empowerment may be an outcome of relational empowerment. This research aims to analyze the relationships of motivational empowerment and competency on job performance of the project managers in the ACM organisations. Regression modelling is adopted to analyze the data collected from 203 project managers involved in projects adopting ACM system. Findings support the relationships of competency and empowerment and their effect on project manager's job performance. ; postprint

Abstract. When debris flow discharges into the main river, the deposition of debris raises the river bed, occupies the path of water conveyance and damages or even destroys buildings, resulting in considerable economic loss and possibly fatalities. Mathematical models are normally employed to compute debris flow. However, most of these models employ empirical formulae and coefficients and their results are seldom reliable. On the other hand, scale model tests associated with debris flow have seldom been conducted due to the lack of corresponding similarity laws and the difficulty of achieving the grain diameter scale. Focusing on pseudo-one-phase flow, this paper discusses the laws of similarity for the confluence of debris flow and main river and conducts a case study of the debris flow that occurred on 13 August 2010, in the Wenjia Gully, China. After satisfying the roughness scale, the kinematic viscosity coefficient scale, and the momentum ratio scale, it was found that the deposition terrain in the model test is consistent with the one in the prototype.

Flooding in the USA and elsewhere, as well as issues related to climate change, have again alerted politicians and scientists to the dangers that floods pose. This article, written by international river experts from several countries, is aimed at giving readers an insight into what engineers are currently doing to understand the underpinning science, to improve hydrodynamic flow models and to develop better flood risk management procedures. It reviews fluvial flooding from a European perspective, describes recent R&D studies in the UK, China & Japan and highlights the need for more international collaboration.