The purpose of this paper is to evaluate the impact of lean product development （LPD） in the Brazilian automotive sector. A mailed-questionnaire survey was used to examine 23 questions about LPD principles and pract...The purpose of this paper is to evaluate the impact of lean product development （LPD） in the Brazilian automotive sector. A mailed-questionnaire survey was used to examine 23 questions about LPD principles and practices. The target population for the study was Brazil＇s largest product development and design companies. The study identified that although the automobile sector is seen as a reference in the adoption of lean practices, there is still potential for improvement by establishing partnership relations with suppliers, and with those on the other points of the chain by identifying what provides value to clients. Set-based concurrent engineering is also a practice that needs to be better developed, as well as the value stream mapping tool to identify waste and activities that add value to the product development process. There has been no previous study of this nature in Brazil that characterizes the sector and highlights its importance in relation to the global scene, providing incentives to international investors. The value of the work is in the results that allow diagnosing the lean development practices that are most used in the automotive sector. Moreover, the survey questions can be applied in other economic sectors and at companies of other sizes. The study contributed to providing a systematic view of the product development process from the perspective of people, processes, and technology, and assists companies and academics manage change.展开更多
Any anthropic action transforms the environment. However, the Urbanization is a human achievement, not the “villain” or “protagonist” of passive actors and experienced environmental degradations, but the model of ...Any anthropic action transforms the environment. However, the Urbanization is a human achievement, not the “villain” or “protagonist” of passive actors and experienced environmental degradations, but the model of urban occupation, construction and densification, interconnected with the ineffectiveness of the current drainage system. When evaluating programs to minimize flood impacts, the social component is a necessary but often neglected dimension. This component can be evaluated through the articulation between the actors (population and public power) and the resident community’s perception in relation to the needs and interventions. The present work seeks to analyze the perception of the community resident in the watershed of Ribeir?o Garcia regarding the problems arising from urban floods. The repeated flood events occurring in the Ribeirao Garcia watershed in the city of Blumenau-SC, Brazil, make this place a potential area for an investigative process, which can subsidize future decision-making processes aimed at the adequacy of a sustainable system in medium and long term. For the accomplishment of this work, a qualitative research was adopted. Fieldwork and semi-structured interviews with residents in the sample areas have been carried out to analyse land use and occupation. The procedures that supported this sample survey were divided into four steps: definition of the total population and the sample size;preparation of a questionnaire;application of the questionnaire and tabulation of results. It can be seen that, despite the problems of floods and landslides to residents of all sample areas, the locals have different perceptions regarding the proposed issues and that these different perceptions are linked to the sample geographic location. The analysed space is full of contrasts in physical, social and economic aspects, which favours one part of the population and disfavours the other. The process of densification and overcrowding of inadequate areas has been one of the negative effects of a disorganized housing sector in a speculative real estate market, and different levels of infrastructure among the districts, consolidating, in many ways, a process of social exclusion and spatial segregation. The analysis of the resident community’s perception in the Ribeirao Garcia watershed shows that the most susceptible communities to this type of events are those of low income, located in risk areas. It also demonstrates that, despite these communities’ present empirical situation knowledge on the causes and consequences of the floods, most residents prefer to transfer responsibility only to the public power, without assuming their own responsibility. The study of community perception makes it clear that the problem has been aggravated in part by a lack of knowledge of the relationship between land use and flooding.展开更多
Several studies have been performed adjusting the levels of dietary digestible protein and digestible energy for tilapia,but none of them was performed in biofloc technology(BFT)system,especially in brackish(10)water....Several studies have been performed adjusting the levels of dietary digestible protein and digestible energy for tilapia,but none of them was performed in biofloc technology(BFT)system,especially in brackish(10)water.In this sense,three levels of digestible protein(22,26 and 30%DP)and three levels of digestible energy(3000,3150 and 3300 kcal DE/kg)were evaluated on growth performance,body composition,hematological parameters and planktonic community in juveniles of Nile tilapia(O.niloticus)raised under BFT conditions.A total of 540 tilapia fingerlings(GIFT strain with 1.25±0.15 g initial weight)were reared during 42 days in thirty-six plastic tanks(75 L),fed three times a day.No interaction was detected in the parameters evaluated.The fish fed with feed containing 26%and 30%of DP obtained higher final weight,specific growth rate and condition factor as compared to those fed with 22%of DP(P<0.05).Body protein on tilapia carcass increased proportionally according to dietary protein.The higher dietary energy level promoted a higher body lipid deposition.According to hematological parameters fish from all treatments presented a satisfactory immunological status.The monitoring of planktonic community indicated a variation over time,specially on the number of dinoflagellates,rotifers and microalgae.The results indicated that diets containing 26%of DP and 3150 kcal/kg of DE for Nile tilapia juveniles promoted suitable growth performance and health conditions when reared in biofloc brackish water,and enabled savings in regards to dietary protein once the energy levels were adjusted.展开更多
文摘The purpose of this paper is to evaluate the impact of lean product development （LPD） in the Brazilian automotive sector. A mailed-questionnaire survey was used to examine 23 questions about LPD principles and practices. The target population for the study was Brazil＇s largest product development and design companies. The study identified that although the automobile sector is seen as a reference in the adoption of lean practices, there is still potential for improvement by establishing partnership relations with suppliers, and with those on the other points of the chain by identifying what provides value to clients. Set-based concurrent engineering is also a practice that needs to be better developed, as well as the value stream mapping tool to identify waste and activities that add value to the product development process. There has been no previous study of this nature in Brazil that characterizes the sector and highlights its importance in relation to the global scene, providing incentives to international investors. The value of the work is in the results that allow diagnosing the lean development practices that are most used in the automotive sector. Moreover, the survey questions can be applied in other economic sectors and at companies of other sizes. The study contributed to providing a systematic view of the product development process from the perspective of people, processes, and technology, and assists companies and academics manage change.
文摘Any anthropic action transforms the environment. However, the Urbanization is a human achievement, not the “villain” or “protagonist” of passive actors and experienced environmental degradations, but the model of urban occupation, construction and densification, interconnected with the ineffectiveness of the current drainage system. When evaluating programs to minimize flood impacts, the social component is a necessary but often neglected dimension. This component can be evaluated through the articulation between the actors (population and public power) and the resident community’s perception in relation to the needs and interventions. The present work seeks to analyze the perception of the community resident in the watershed of Ribeir?o Garcia regarding the problems arising from urban floods. The repeated flood events occurring in the Ribeirao Garcia watershed in the city of Blumenau-SC, Brazil, make this place a potential area for an investigative process, which can subsidize future decision-making processes aimed at the adequacy of a sustainable system in medium and long term. For the accomplishment of this work, a qualitative research was adopted. Fieldwork and semi-structured interviews with residents in the sample areas have been carried out to analyse land use and occupation. The procedures that supported this sample survey were divided into four steps: definition of the total population and the sample size;preparation of a questionnaire;application of the questionnaire and tabulation of results. It can be seen that, despite the problems of floods and landslides to residents of all sample areas, the locals have different perceptions regarding the proposed issues and that these different perceptions are linked to the sample geographic location. The analysed space is full of contrasts in physical, social and economic aspects, which favours one part of the population and disfavours the other. The process of densification and overcrowding of inadequate areas has been one of the negative effects of a disorganized housing sector in a speculative real estate market, and different levels of infrastructure among the districts, consolidating, in many ways, a process of social exclusion and spatial segregation. The analysis of the resident community’s perception in the Ribeirao Garcia watershed shows that the most susceptible communities to this type of events are those of low income, located in risk areas. It also demonstrates that, despite these communities’ present empirical situation knowledge on the causes and consequences of the floods, most residents prefer to transfer responsibility only to the public power, without assuming their own responsibility. The study of community perception makes it clear that the problem has been aggravated in part by a lack of knowledge of the relationship between land use and flooding.
基金National Council of Scientific and Technological Development for financial support(CNPq 483450/2013-8)research grant to M.G.C.Emerenciano(CNPq 310356/2017-2)Scientific and Technological Research Foundation of Santa Catarina State-FAPESC(Project Number 2013TR3406 and 2015TR453)。
文摘Several studies have been performed adjusting the levels of dietary digestible protein and digestible energy for tilapia,but none of them was performed in biofloc technology(BFT)system,especially in brackish(10)water.In this sense,three levels of digestible protein(22,26 and 30%DP)and three levels of digestible energy(3000,3150 and 3300 kcal DE/kg)were evaluated on growth performance,body composition,hematological parameters and planktonic community in juveniles of Nile tilapia(O.niloticus)raised under BFT conditions.A total of 540 tilapia fingerlings(GIFT strain with 1.25±0.15 g initial weight)were reared during 42 days in thirty-six plastic tanks(75 L),fed three times a day.No interaction was detected in the parameters evaluated.The fish fed with feed containing 26%and 30%of DP obtained higher final weight,specific growth rate and condition factor as compared to those fed with 22%of DP(P<0.05).Body protein on tilapia carcass increased proportionally according to dietary protein.The higher dietary energy level promoted a higher body lipid deposition.According to hematological parameters fish from all treatments presented a satisfactory immunological status.The monitoring of planktonic community indicated a variation over time,specially on the number of dinoflagellates,rotifers and microalgae.The results indicated that diets containing 26%of DP and 3150 kcal/kg of DE for Nile tilapia juveniles promoted suitable growth performance and health conditions when reared in biofloc brackish water,and enabled savings in regards to dietary protein once the energy levels were adjusted.
