“Influence” In historical explanation: Mary morgan’s traveling facts and the context of influence

In my years as a student of Mary Morgan and later as her junior peer, I observed that one concept prompted her to react with caution and skepticism. That common notion was “influence.” In this chapter, I follow her cues to ask what are the legitimate grounds for claims of influence in historical explanation. Morgan’s writings have made us aware that the story of social science cannot be captured in simple reckonings of influence, and that long chains of actions are required to seat an idea in the mind, and longer still to set it to paper. My contribution to problematizing influence is to list the pitfalls of its uncritical use but also, once suitably redefined, its potential contribution to analysis. To illustrate my claims, I propose a test case, to study the “influence of Mary Morgan.

Semiautonomy and teleoperation modes of mobile robot IBIS — simulation and implementation

The work is concerned on the simulation and implementation of teleoperation and semiautonomy modes of IBIS mobile robot. A description of robot construction, used sensors as well as the algorithm for semiautonomy mode of operations is introduced. Simulation environment and experiment with Matlab/Simulink package with Simulink 3D Animation toolbox is discussed. In addition, an experiment on real target/robot and its results are presented as the scope of work

Conservation of concrete structures in fib Model Code 2010

Chapter 9: Conservation of Concrete Structures forms part of the forthcoming fib new Model Code. As it is expected that the fib new Model Code will be largely completed in 2010, it is being referred to as fib Model Code 2010 (fib MC2010) and it will soon become available for wider review by the profession. This paper is part of this activity. Chapter 9 addresses issues concerning conservation strategies and tactics, conservation management, condition survey, condition assessment, condition evaluation and decision-making, making interventions and the recording of information for through-life management. Chapter 9 incorporates the overall philosophy adopted in the development of the fib MC2010, which introduces a new integrated life cycle perspective upon the design of concrete structures. Accordingly, Chapter 9 provides a response to concepts introduced earlier within the fib MC2010 document relating to the service life design process, which requires the structure and its component parts to be allocated to a condition control category at the time of design. Different condition control categories are defined depending on factors such as the importance of the structure, its function, design service life, impact on third parties, environmental conditions, ease of maintenance and cost. Linked to these requirements, the condition control levels and inspection regimes are defined. A through-life management process outlined in Chapter 9 provides feedback to the service life design and allows updating of the associated theoretical model employed, facilitating assessment of compliance with the original design. B.S. Italia - Styl-Comp Group; BASF; Bentley; bsf; et al.; Hamilton Form Company, Ltd (hf

A numerical approach to modelling size effects on the flexural ductility of RC beams

The problem of evaluating the rotation capacity of reinforced concrete (RC) beams in bending has been largely investigated from both the experimental and the analytical point of view during the last decades. Since the development of ductility is influenced by several design parameters, it is difficult to develop a predictive model that can fully describe the mechanical behaviour of RC beams. In particular, the role of the size-scale effect, which has been evidenced by some experimental tests, is not yet completely understood. One of the main reasons is the inadequacy of the traditional models based on ad hoc stress-strain constitutive laws. In the present paper, a new model based on the concept of strain localization is proposed, which is able to describe both cracking and crushing growths in RC beams during the loading process. In particular, the nonlinear behaviour of concrete in compression is modelled by the Overlapping Crack Model, which describes the strain localization due to crushing by means of a material interpenetration. With this algorithm in hand, it is possible to effectively capture the flexural behaviour of RC beams by varying the reinforcement percentage and/or the beam depth. An extensive comparison with experimental results demonstrates the effectiveness of the proposed approac