Paradigmatic Shifts in Automobile Manufacturing
ABSTRACTOne of the greatest problems facing the U.S. auto industry is the erosion of its manufacturing base. Another is the increasing challenge from Japan, which keeps building on its solid postwar accomplishments mapped out by such pioneers as Taiichi Ohno and Shigeo Shingo. Their enduring legacy includes a reliance on the firm's human resources for maintaining productivity and quality control. The Japanese paradigm thus has a built-in mechanism for self-improvement and competitiveness enhancement.The continued strife in Detroit suggests that the older American paradigm must be restructured; its top-down way of conducting business must allow labor to become a genuine partner with management instead of an adversary. The Japanese immigrant plants in the United States clearly show the way to do this. While such restructuring is frequently time-consuming, the period available for reform dwindles as the Asians keep strengthening their U.S. operations.
Japanese automobile manufacturing in an American setting
Abstract The growing force of Japanese manufacturing in the automobile industry is analyzed in its postwar formative stages, its export surges during the oil shortages of the last decade, and the current start-up of assembly plants in the United States. The immigrant plants demonstrate a new successful operating paradigm which revolves around a cooperative compact with labor and continuous innovation in cost and quality control work routines. The U.S. factory floor is being transformed under the Japanese paradigm as work responsibility is invested in front-line personnel recruited from the surrounding American locale.
Ceramic microwave antennas for mobile applications
Due to their medium to high permittivity values, ceramic microwave materials are attractive as building blocks for miniaturised antenna solutions. Further advantages are low dielectric losses and an excellent temperature stability of standard ceramic materials. Yet, the permittivity of the ceramic material also has a strong influence on the radiation efficiency and bandwidth of the antenna. This implies that in the design process a suitable compromise has to be found between the degree of miniaturisation on the one hand and the antenna efficiency and bandwidth on the other. We describe two approaches towards efficient miniaturised ceramic microwave antennas: the dielectric resonator antenna (DRA) with partial metallisation and the shorting post patch antenna. We focus on design steps taken to ensure both a high degree of miniaturisation and high values of the radiation efficiency, the choice of the ceramic material and the experimental performance of the antennas.