This paper presents two applications for process monitoring and control through Internet. The objective of providing students with access to these two processes through Internet is to allow them to contact actual industrial processes and, thus, overcoming traditional simulations which, in many cases, do not represent accurately the industrial reality our students will have to face during their ...

Changes in sea level (relative to the moving crust) are associated with changes in ocean volume (mostly thermal expansion) and in ocean mass (melting and continental storage): zeta(t) = zeta(steric)(t) + zeta(eustatic)(t). Recent compilations of global ocean temperatures by Levitus and coworkers are in accord with coupled ocean/atmosphere modeling of greenhouse warming; they yield an increase i...

In this study, cooperation between Stockholm’s transport and district heating sectors is analysed. The cooperation concerns the integration of biofuel polygeneration production. A MODEST optimisation model framework is used, assuming various energy market and transport sector scenarios for the year 2030. The scenarios with biofuel production and increased biofuel use in the region are compared ...

It is clear that there exist many practical control problems in which the consideration of multiple objectives is typically required, and these objectives may conflict with each other. For example, in many practical control systems, control error often conflicts with energy consumption. In the past ten years, we have been studying the greenhouse environment control problem and have gained a con...

a r t i c l e i n f o Keywords: Malmquist–Luenberger index Urban water utilities Greenhouse gas emissions Nonparametric productivity measurement The energy use and greenhouse gas emissions in the provision of urban water and sewerage services have become an increasingly important issue in recent times. However, the impact of negative externalities such as greenhouse gas emissions on the product...

introduction: in iran, the main problem in greenhouse cucumber production and post-harvest shelf life is short due to the application of traditional packaging and storage methods. this research was carried out in order to investigate on the effects of packaging type and chitosan edible coating on the physicochemical and sensory characteristics of royal greenhouse cucumber during storage conditi...

[1] The Mesozoic, perhaps the longest period of warmth during the Phanerozoic Earth history, has been repeatedly affected by short‐lived cold interludes lasting about one million years. While the origin of these cold snaps has been classically attributed to a temporary atmospheric CO2 drawdown, quantified mechanisms explaining these instabilities of the carbon cycle are still lacking. Based on ...

In the contemporary literature on recorded performance, the standard view is that today there is less diversity among interpretations of concert-hall music than in the first decades of the twentieth century.1 When explaining this lack of diversity, commentators generally point to specific record industry practices and the way performers use sound recordings. It is often claimed that with the ad...

As part of the model validation and development activities of a European research initiative in the area of passive solar architecture, a validation/calibration methodology has been developed which emphasises the use of empirical data in the model proving process and, if necessary, model calibration before use. This procedure has been applied to the ESP-r system in order that it might be used t...

We extend a Kalman filter model for count data to reflect observations irregularly spaced in time. The model is applied to estimate risk of rare events; bycatch of endangered leatherback turtles in a swordfish fishery off Oregon and California. Incidental takes of turtles are modeled as a Poisson process. The results suggest that take risk is better estimated by regarding the entire history of ...