Réluctance

relation pratique entre le flux et le courant qui le crée, on fait intervenir la grandeur appelée Réluctance et notée R satisfaisant à la relation dite d’Hopkinson : NI = RΦ En résumé, pour caractériser toutes les grandeurs dans un circuit magnétique homogène linéaire, on retiendra la relation : L NI = RΦ avec R = -----µS ➤ Analogie avec les circuits électriques L’utilisation de la notion de réluctance permet de dresser une analogie entre les relations des circuits magnétiques et les relations des

video games from a marketing and innovation perspective. Why academia has not given more consideration to an industry that has a revenue-generating capacity that rivals film and music remains anyone’s guess. We suspect it has something to do with a reluctance to investigate a medium that is often considered juvenile. Yet video games should no longer be viewed as the exclusive domain of antisocial teenage boys, but rather as part of the commercial mainstream. Their impact on society is far reaching. For

Ben Letaifa, On the stability study of fuzzy systems, New approaches, Transaction on Systems, Signals and Devices, TSSD, Vol. 4, No. 2, pp 75-89, 2009. L. El-Amraoui Ouni, R. Saadaoui and M. Benrejeb, Optimal Design Approach for linear switched reluctance Actuator, Transaction on Systems, Signals and Devices, TSSD, Vol. 4, No. 2, pp 281-295, 2009. REE - ISSN : 1265-6534 F. Tangour, I. Saad et P. Borne, Optimisation des systèmes de production par colonie de fourmis, Revue de l’Electricité et de l’Electronique

jusqu'à 10 kHz et de précision de l'ordre de 1 % de l'échelle de mesure du capteur. Les accéléromètres utilisés, de type non-asservis, sont : à détection piézoélectrique à détection piézorésistive ou jauge d'extensométrie à détection inductive (ou réluctance variable) I.3 Les accélérations de mobiles Les accélérations de mobiles sont de faible niveau. Par exemple, l'accélération maximum retenue pour le "Rafale"(un des meilleures avions de chasse) est de 9 g. Ces accélérations n'excèdent pas quelques

nécessaire pour vaincre la réluctance du circuit magnétique(faible car Xm est grand). Par ailleurs : N1 I1 = N2 I2 70 I I1 I2 I0 N1 N2 charge Xm Figure 59 Ce transformateur est saturable L'enroulement auxiliaire 8 parcouru par un courant continu i1, provenant du régulateur 9 sature plus ou moins le circuit magnétique dont la réluctance varie. Pour une valeur donnée du courant I débité par l’alternateur, une augmentation de i1 augmente la saturation, donc la réluctance du circuit. Par suite

contention during the Cold War. The Cold War was inevitable due to the differing motives between the three countries and the increasing tension between the Western Allies and Soviet Union due to various events before, during and after World War II. The reluctance to make an early alliance between the Western Allies and the Soviet Union can be traced back to the Bolshevik Revolution of 1917. The Soviets signed a separate peace treaty with the Germans in World War I, enabling Kaiser Wilhelm II to transfer

desirable that recognized partners can help to continue this dialogue to address bilateral issues. The Indian position of rejection of any international mediation on Kashmir now seems overwhelmed by the internationalization of the case and by the great reluctance of both countries to negotiate bilateral agreements that could lead to conflict resolution. However, domestic developments in both countries and the international situation would be hopeful. On the one hand, for India, the Kashmir dispute

having half of the market) - Extremely long negotiating process (Japanese culture). Thinking about entering the Japanese market, the board started to explore possibilities, opportunities and problems. The main problem appeared to be Cohen reluctance entering (does not fit with the social part), the size of the company (comparing to Häagen-Dazs) and the lack of international success of the company. Despite all the company started to explore the possible strategies for the market entering.

that the poor also have the most to gain from development fueled by cheap fossil fuels like coal. For the poor, the climate is already dangerous." Now, say Nordhaus and Shellenberger, "the green bubble" has burst, pricked by Americans' intensified reluctance to pursue greenness at a cost to economic growth. The dark side of utopianism is "escapism and a disengagement from reality that marks all bubbles, green or financial." Reengagement with reality is among the recession's benefits The New Republic

except an excess in > grade 2 neuropathies, largely due to carbopolitain- paclitaxel association (45). These controversies yield again to be circumspect on previous results, probably biased by either selective inclusion criteria or investigator’s reluctance to include elderly people into clinical trials. Factors influencing these biases were analyzed and, more than a formal analysis of co-morbidities and functional geriatric parameters, they seem to rely on age itself(16, 46). Beside the commonly