The determination of the quality target for a manufacturing process represents an intricate and "scally vital decision. This study examines methods for process target optimization in industries where several grades of consumer speci"cations (and hence several quality-grades of products) may be sold within the same market. In such situations, manufacturers may hold goods that have been rejected ...

from applied linguistic point of view, the fundamental question facing the language teachers, methodologists and course designers is which procedure is more effective in fl/sl: learning to use or using to learn? definitely, in order to be a competent language user, knowledge of language system is necessary, but it is not sufficient to be a successful language user. that is why there was a gradu...

Abotrut. A hierarchical control strategy is developed in thispaper for robotic systems (multiple robots systems) holding a rig. id body to track a given motion in the presence o f enviromrntal con. draintl. New mathematical formulation to the enviromental con. dralnts is introduced which is simple enough in many caws. The control b constructed following a master-helper control scheme in which t...

Background and Purpose: Innovations play an important role in multifunctional forestry due to changing demands for forest goods and services. The multifunctionality can be a result of a joint provision of several outputs from individual forest holding or specialized forest activities. The goal of this paper is to make a comparative analysis from data obtained in two surveys in 2002 and 2010 rel...

Air traffic growth and especially hubs development cause new significant congestion and ground delays on major airports. Accurate models of airport traffic prediction can provide new tools to assist ground controllers in choosing the best taxiways and the most adapted holding points for aircraft. Such tools could also be used by airport designers to evaluate possible improvements on airport con...

The three main performance metrics in automotive suspensions are passenger comfort, suspension deflection, and road holding ability. It is well-known that these three objectives can not be reached at the same time. In order to reach them “individually”, three linear H∞ controllers are designed. At each moment, the desired performance requirement is chosen with a robust stable control strategy t...

This paper addresses the production and maintenance problem of multiple-product manufacturing system satisfying several random demands corresponding to every product. The goal of this study is to establish an economical production planning followed by an optimal maintenance strategy, taking into account the influence of the multiple-product production rate on the materiel degradation. Analytica...