ln this study, 12 maize populations were improved with the improved S1 selection method, aiming to increase the improvement efficiency of maize popula-tions. The results showed that number of rows per spike, number of...ln this study, 12 maize populations were improved with the improved S1 selection method, aiming to increase the improvement efficiency of maize popula-tions. The results showed that number of rows per spike, number of grains per row and 100-grain weight were the three important component traits of maize yield. The highest genetic increment was found in Mengqun 2, fol owed by Mengqun 4, Mengqun 1 and other 7 maize populations. Negative genetic increment was shown in Mengqun 3 and 3 introduced foreign maize populations. Some changes were shown in spikes, plant traits and genetic diversity of maize populations. Based on our results, we concluded that Mengqun 2, Mengqun 4, Zhongzong 7, Mengqun C and Mengqun A could be directly used for the line breeding by selfing for their higher genetic increment of yield and better improvement effects of other agricultural traits. Compared with these 5 populations, the improvement potential of other maize populations was limited for their lower genetic increment.展开更多
As a study in art history critical theory, this paper looks at the appreciation and usage of art amongst interest groups at the time of the Great War and the subsequent legacy of the work of Canada＇s resident war art...As a study in art history critical theory, this paper looks at the appreciation and usage of art amongst interest groups at the time of the Great War and the subsequent legacy of the work of Canada＇s resident war artist Richard Jack. The Canadian War Museum＇s recent web page described Jack＇s standing officer in The Second Battle of Ypres 22 April to 25 May 1915 as one who ＂exemplifies the courage and resolve of the inexperienced Canadians in their first major battle＂. This comment showed a marked contrast to the contemporary art critic Richard Cork who described the first of the Canadian war memorials paintings as ＂a clich6-ridden bandaged officer ... shamelessly catering to public sentiment＂. Given these disparate positions, the author attempts to explain the gulf between these points of view and subsequently make the case that art has a broad application that might make us cautious of viewing a given work without due consideration of the context of its making and future merits.展开更多
In this paper, an economic model was constructed to determine the optimal wolf population and distribution across the Northern Rocky Mountains. Both ecological and economic concepts were incorporated in an implicitly ...In this paper, an economic model was constructed to determine the optimal wolf population and distribution across the Northern Rocky Mountains. Both ecological and economic concepts were incorporated in an implicitly spatial social welfare maximization problem. This interdisciplinary model relies on multiple data sources, including current wolf population and distribution information, opportunity cost to local landowners, and contingent valuation studies to determine willingness-to-pay for wolves. Economic models tend to externalize ecological concerns and ecological models often omit the complex human dimensions of conservation policy. Accordingly, this model can serve as a guide for integrating best practices from both fields. The model presented here is sufficiently general to apply to wolves in other ecosystems and to other highly interacting species such as beavers and bison. The Northern Rocky Mountain wolf was used as an example of how this economic model works, but this model can be applied far more broadly.展开更多
The global financial and economic crisis has negatively affected all business units. Tough fight for the market position results in effort to create efficient methods to maintain company＇s competitiveness. Some of sm...The global financial and economic crisis has negatively affected all business units. Tough fight for the market position results in effort to create efficient methods to maintain company＇s competitiveness. Some of small and medium entrepreneurs have started to search the business allies. As an example of such possibility of cooperation the formation of clusters should be mention. The main intention of this paper is to demonstrate possibility for small and medium-sized enterprises （SMEs） to cooperatively penetrate new markets. Attention is focused mainly on a real export-oriented cluster. Ambition is to use costs and benefits analysis to test ability of the cluster to improve chances of companies to penetrate new markets. In order to link this analysis to real life as much as possible, existing cluster was used and on its accomplishments and failures costs and benefits of clustering are demonstrated.展开更多
Industrial clusters have been an important phenomenon of the global economy. The most important reason for its becoming the focus of people＇s attention and the popular mode of industry programming is continuous and p...Industrial clusters have been an important phenomenon of the global economy. The most important reason for its becoming the focus of people＇s attention and the popular mode of industry programming is continuous and powerful competitiveness ,The article analyzes this competitiveness, and points out some problems of China＇s industrial clusters, which directly affects its current competitiveness and further development. Finally, we propose stone specific measures of those problems.展开更多
The purpose of this paper is to evaluate the possibility of implementation of alternative renewable energy micro-generation installations in dairy farm milk collection posts, from the technical, economical and environ...The purpose of this paper is to evaluate the possibility of implementation of alternative renewable energy micro-generation installations in dairy farm milk collection posts, from the technical, economical and environmental perspectives. Work was performed through dairy farm milk collection post energy audits. Weather data was obtained from CLIMAAT and MacSIMAR projects and introduced in a renewable energy solutions calculator （HOMER）. Moreover, a system design from the available portfolio of micro-generation devices was defined and a cost benefit analysis of the selected alternatives was performed. From the analyzed solutions, the set of PV （20 kW） and Wind （3 kW） with no batteries revealed to be the best one. The sensitivity analysis indicated that wind micro-turbines should be installed except if the solar radiation is maximum and that in no case the use of batteries is an advantage. For systems requiring a certain degree of energy （in this case with an average of 350 kW/day）, the implementation of micro generation systems, like the ones evaluated, will never be economically feasible in terms of Total Economic Value, even with generous feed-in tariff schemes. It is preferable that grid operators make investments in renewable energy production.展开更多
基金Supported by Science and Technology Innovation Guiding and Incentive Fund of Inner Mongolia Autonomous Region(20111705)~~
文摘ln this study, 12 maize populations were improved with the improved S1 selection method, aiming to increase the improvement efficiency of maize popula-tions. The results showed that number of rows per spike, number of grains per row and 100-grain weight were the three important component traits of maize yield. The highest genetic increment was found in Mengqun 2, fol owed by Mengqun 4, Mengqun 1 and other 7 maize populations. Negative genetic increment was shown in Mengqun 3 and 3 introduced foreign maize populations. Some changes were shown in spikes, plant traits and genetic diversity of maize populations. Based on our results, we concluded that Mengqun 2, Mengqun 4, Zhongzong 7, Mengqun C and Mengqun A could be directly used for the line breeding by selfing for their higher genetic increment of yield and better improvement effects of other agricultural traits. Compared with these 5 populations, the improvement potential of other maize populations was limited for their lower genetic increment.
文摘As a study in art history critical theory, this paper looks at the appreciation and usage of art amongst interest groups at the time of the Great War and the subsequent legacy of the work of Canada＇s resident war artist Richard Jack. The Canadian War Museum＇s recent web page described Jack＇s standing officer in The Second Battle of Ypres 22 April to 25 May 1915 as one who ＂exemplifies the courage and resolve of the inexperienced Canadians in their first major battle＂. This comment showed a marked contrast to the contemporary art critic Richard Cork who described the first of the Canadian war memorials paintings as ＂a clich6-ridden bandaged officer ... shamelessly catering to public sentiment＂. Given these disparate positions, the author attempts to explain the gulf between these points of view and subsequently make the case that art has a broad application that might make us cautious of viewing a given work without due consideration of the context of its making and future merits.
文摘In this paper, an economic model was constructed to determine the optimal wolf population and distribution across the Northern Rocky Mountains. Both ecological and economic concepts were incorporated in an implicitly spatial social welfare maximization problem. This interdisciplinary model relies on multiple data sources, including current wolf population and distribution information, opportunity cost to local landowners, and contingent valuation studies to determine willingness-to-pay for wolves. Economic models tend to externalize ecological concerns and ecological models often omit the complex human dimensions of conservation policy. Accordingly, this model can serve as a guide for integrating best practices from both fields. The model presented here is sufficiently general to apply to wolves in other ecosystems and to other highly interacting species such as beavers and bison. The Northern Rocky Mountain wolf was used as an example of how this economic model works, but this model can be applied far more broadly.
文摘The global financial and economic crisis has negatively affected all business units. Tough fight for the market position results in effort to create efficient methods to maintain company＇s competitiveness. Some of small and medium entrepreneurs have started to search the business allies. As an example of such possibility of cooperation the formation of clusters should be mention. The main intention of this paper is to demonstrate possibility for small and medium-sized enterprises （SMEs） to cooperatively penetrate new markets. Attention is focused mainly on a real export-oriented cluster. Ambition is to use costs and benefits analysis to test ability of the cluster to improve chances of companies to penetrate new markets. In order to link this analysis to real life as much as possible, existing cluster was used and on its accomplishments and failures costs and benefits of clustering are demonstrated.
文摘Industrial clusters have been an important phenomenon of the global economy. The most important reason for its becoming the focus of people＇s attention and the popular mode of industry programming is continuous and powerful competitiveness ,The article analyzes this competitiveness, and points out some problems of China＇s industrial clusters, which directly affects its current competitiveness and further development. Finally, we propose stone specific measures of those problems.
文摘The purpose of this paper is to evaluate the possibility of implementation of alternative renewable energy micro-generation installations in dairy farm milk collection posts, from the technical, economical and environmental perspectives. Work was performed through dairy farm milk collection post energy audits. Weather data was obtained from CLIMAAT and MacSIMAR projects and introduced in a renewable energy solutions calculator （HOMER）. Moreover, a system design from the available portfolio of micro-generation devices was defined and a cost benefit analysis of the selected alternatives was performed. From the analyzed solutions, the set of PV （20 kW） and Wind （3 kW） with no batteries revealed to be the best one. The sensitivity analysis indicated that wind micro-turbines should be installed except if the solar radiation is maximum and that in no case the use of batteries is an advantage. For systems requiring a certain degree of energy （in this case with an average of 350 kW/day）, the implementation of micro generation systems, like the ones evaluated, will never be economically feasible in terms of Total Economic Value, even with generous feed-in tariff schemes. It is preferable that grid operators make investments in renewable energy production.
