Some implementation experiences with just-in-time manufacturing

A case study on the implementation of a just-in-time (JIT) production system by a Canadian manufacturer in the heavy machinery industry is presented. Many hurdles and difficulties were encountered during implementation and the way in which these problems were resolved is reported. While the successful implementation of a JIT system depends on a host of technical and human factors, this study suggests that the people involvement factor is the most crucial. It is seen that the key elements to securing people involvement are institution leadership, company-wide education and training and mutual understanding, trust and respect among employees. The moral of this study is that without employee involvement nothing will happen and no result will be achieved.     

试论彝族社会传统家庭教育的特点

彝族社会传统家庭教育是指彝族地区没有进入社会主义之前,凉山地区则特指1956年实行民主改革以前的彝族的家庭教育。彝族的家庭教育的产生是彝族社会发展到一定阶段的产物。彝族社会传统家庭教育具有阶层性,等级性、早期性的显著特点,既注重实践,提倡学以致用,又注重言传身教,潜移默化,并根据不同的年龄阶段施以不同的教育内容。     

Organizational learning in SMEs’ internationalization: A moderated mediating effect of absorptive capacity

We examine both mediation and moderation effects on the direct relationship between internationalization speed and firm performance in the context of small and medium-sized enterprises (SMEs). Building on prior studies that focus either on the direct speed–performance linkage or the moderating role played by knowledge, we suggest that an important source of performance variations is organizational learning. Grounded in the organizational learning perspective, we argue that firm strategies regarding speed and earliness of internationalization provide the SMEs with opportunities to develop their absorptive capacity, and thus enhance their performance. Using survey data from 343 SMEs in Australia and New Zealand, our empirical results suggest that absorptive capacity is associated with internationalization speed in a reversed U-shape relationship and that in turn absorptive capacity mediates the direct speed–performance relationship. Moreover, this mediating effect is moderated by earliness of internationalization. By demonstrating the moderated mediating effect of absorptive capacity as a novel mechanism to achieving superior performance, we enhance the understanding of how firms succeed internationally.     

Genetic algorithm to production planning and scheduling problems for manufacturing systems

Fundamental and extended multi-objective (MO) models are designed to address earliness/tardiness production scheduling planning (ETPSP) problems with multi-process capacity balance, multi-product production and lot-size consideration. A canonical genetic algorithm (GA) approach and a prospective multi-objective GA (MOGA) approach are proposed as solutions for different practical problems. Simulation results as well as comparisons with other techniques demonstrate the effectiveness of the MOGA approach, which is a noted improvement to any of the existing techniques, and also in practice provides a new trend of integrating manufacturing resource planning (MRPII) with just-in-time (JIT) in the production planning procedure.