The growth rate of total factor productivity seems to have increased recently, at least in the United States. Higher US productivity growth may justify higher stock market valuations than in the past and thus herald an emerging New Economy. However, the size of the estimated growth rate of total factor productivity depends on an assumption about the factor-augmenting properties of technological...

Physical models of different Intonarumori, musical instruments invented by the Italian Futurist composer Luigi Russolo, are proposed. The acoustics of the instruments is described, and a physical model to simulate such instruments is proposed. We also introduce the Croaker, a new interface made with Lego which is inspired by Russolo’s original instruments.

A prediction method for rubber curing process has historically received considerable attention in manufacturing process for rubber article with relatively large size. In recent years, there exists increasing demand for simulation driven design which will cut down the cost and time required for product development. In case of the rubber with relatively large dimensions, low thermal conductivity ...

In addition, simulation has become usual practice aimed at solving problems associated with vibro-acoustic control for several categories of products ([1] to [5]). This approach is indeed less expensive and time consuming in comparison with the experimental one. It does not need the actual implementation of noise treatments and carrying on extensive field measurements. Moreover, it allows the p...

A new method of statistical classiÞcation (discrimination) is proposed. The method is most effective for high dimension low sample size data. Its value is demonstrated through a new type of asymptotic analysis, and via a simulation study.

this paper is the representation of the computational and experimental methods of a new injector nozzle for a sequential port injection cng engine. the objective of this study was to review the previous research in the development of gaseous fuel injector for port injection cng engine converted from diesel engine. next, a simulation of the fuel flow of the new injector nozzle was made using flu...

We have performed for the first time in the literature a 2D structural analysis on the barred lenticular and face–on galaxies NGC 4608 and NGC 5701. The results indicate that these galaxies either have never had large disks or their disks were almost completely destroyed by their strong bars, due to secular evolution processes. We discuss these surprising conclusions checking for signs of secul...

We propose to implement and simulate an economic model that studies the potential effects of the introduction of a new type of a job contract into the French labor market. This transition from a classical economic model to an agent-based simulation allows us to reproduce the same tendencies found in the former one and to observe a new dimension that emerges from the agent-based simulation: an i...

due to the complex structure of the pressure-adjusting device used in most sprinklersfor variable irrigation, it is not possible to observe the flow behavior of the water passingthrough the flow field. in this paper, an integral three dimensional (3d) numerical modelbased on the structural characteristics of the fluidic sprinkler was constructed to simulatethe flow field distribution using comp...