Agile software development processes of various kinds have been proposed and put into practice. Generally they are specific-approach oriented at the operational-characteristic level. Ten underlying principles for agile systems were identified by examining over a hundred various non-software systems that exhibit agility. This paper outlines and discusses the first purposeful employment of these ...

Identifying transitions to complex dynamical regimes is a fundamental open problem with many practical applications. Semi- conductor lasers with optical feedback are excellent testbeds for studying such transitions, as they can generate a rich variety of output signals. Here we apply three analysis tools to quantify various aspects of the dynamical transitions that occur as the laser pump curre...

In this paper, we review the efficiency of both manufacturing processes and systems over recent decades and compare nano-materials technologies in this context. To a first approximation, nano-materials processes appear to be about as efficient as semi-conductor processes. That is, their second law efficiencies are of the order 10, while conventional processes are of order 10. However, many of t...

The performance of an optimistic parallel simulation run depends on many factors. These factors range from the inherent complex nature of the simulation workload to the overhead in using the available parallel computing resources. Very often, using the maximum number of available processors for a parallel simulation run will not yield the best performance achievable. In this paper, we describe ...

Overhead transmission lines are influenced by different factors which are mostly electrical and mechanical. These factors can cause problems for lines, distortions in network and outage of line. In designing transmission lines mechanical properties are evaluated after selecting a suitable conductor and clearance with regard to electrical properties. In lines designing, an important mechanical p...

Abstract In this paper, an oxygen sensor with La 2 MoWO 9 as the base material and 0.6 Sr 0.4 Fe 0.8 Co 0.2 O 3 mixed conductor diffusion barrier layer was made by solid state synthesis method. The has characteristics of low price, working temperature, simple preparation process, a good application prospect. However, there is also problem poor stability, which needs to be further studied.

We report the development of different types of oxygen sensors based on yittria-stabilized zirconia (YSZ) as a solid electrolyte. The conventional oxygen sensor is a concentration cell with two porous Pt electrodes, one of which is exposed to air as a constant (reference) oxygen concentration and the other is exposed to automobile exhaust gas of variable oxygen concentration, depending on the a...

In this paper we present the impact of hot wire geometry and fluid characteristics on the efficiency of a hot wire to be used as a wall shear stress sensor. Finite differences and finite elements modelling based simulators were used in order to evaluate the thermal performances of hot wire wall shear stress sensor. Several structures were explored including simple conductor or suspended above a...

Wireless multimedia sensor networks (WMSN) have recently emerged as one ofthe most important technologies, driven by the powerful multimedia signal acquisition andprocessing abilities. Target classification is an important research issue addressed in WMSN,which has strict requirement in robustness, quickness and accuracy. This paper proposes acollaborative semi-supervised classifier learning al...