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磁障转子无刷双馈电机 被引量:23
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作者 张岳 王凤翔 +2 位作者 邢军强 Milutin Jovanovic david atkinson 《电工技术学报》 EI CSCD 北大核心 2012年第7期49-54,共6页
为了研究在转子铁心中引入磁障对磁阻转子无刷双馈电机性能的影响,基于场路耦合有限元分析,对比研究了转子极弧系数与磁障数量及结构参数对无刷双馈磁阻电机性能的影响,并在此基础上,提出了一种结构简单、性能较好的无刷双馈磁障转子设... 为了研究在转子铁心中引入磁障对磁阻转子无刷双馈电机性能的影响,基于场路耦合有限元分析,对比研究了转子极弧系数与磁障数量及结构参数对无刷双馈磁阻电机性能的影响,并在此基础上,提出了一种结构简单、性能较好的无刷双馈磁障转子设计方案。通过样机实验,验证了该磁障转子无刷双馈电机的设计方法及其双馈运行特性。理论分析和实验研究结果表明:在电机结构尺寸相同情况下,通过在转子铁心中适当引入磁障,可以有效地改善磁阻转子无刷双馈电机的性能,并使其保留普通磁阻转子结构简单和成本低廉的优点。 展开更多
关键词 无刷双馈电机 磁障转子 场路耦合有限元分析 双馈运行
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Sustainability in Business:A Millennials’Perspective
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作者 Andrea Valente david atkinson 《Journal of Modern Accounting and Auditing》 2019年第6期293-304,共12页
The detrimental effect mankind has on the planet continues,with its ability to produce far more than it can be consumed,resulting in unmanageable effects to the earth.Achieving a performance advantage while not causin... The detrimental effect mankind has on the planet continues,with its ability to produce far more than it can be consumed,resulting in unmanageable effects to the earth.Achieving a performance advantage while not causing destructive effects is the new challenge.Consequently,considering the UN’s sustainable development goals(SDGs),this study investigated how environmental,social,and governance(ESG)factors could contribute to a better financial performance for multinational companies.Due to the ecological,economic,and social consequences of business,it has never been more important for society to lean towards sustainable practices.As new challenges emerge,new concepts of how to deal with them evolve,including the concept of“sustainable development”as a foundation to management-thinking and decision-making.Private businesses are a key component in achieving the UN’s desired sustainable view,as they can help to fill the$3tn annual investment gap expected to be needed across the next 15 years.As a generation,millennials have a critical role to play in achieving a sustainable future.Millennials are the next group of business-thinkers and decision-makers.Based on research conducted by this study,eight out of 10 London-based millennials acknowledged the private sector has a critical role in helping to achieve a sustainable future for all.However,fewer than three in 10 millennials actually believe that private businesses will take action,instead continuing to place their short-term profitability mindset ahead of sustainability.With a world population of 50%under the age of 30,and with millennials continuing to become more conscious of trends which affect the planet and their future,the expectation of businesses to act sustainably seems to be rising.This study confirmed a multitude of ways to increase business performance sustainably,such as driving sales by targeting consumers’increasing willingness to pay a premium for sustainable goods.A questionnaire supported this approach by confirming that nine out of 10 millennial Londoners acknowledged that action on climate change should be the responsibility of both individuals and private businesses.However,a smaller amount,only four out of 10 millennials surveyed,were willing to contribute by shifting their purchasing-behaviour,to more sustainable products,if prices were higher.Further to this,if a product was found to be unethical,the data collected showed 75%of millennials would take action by looking for a competitor or leaning towards an alternative(30%of those surveyed).Consequently,the results suggest millennials expect the private sector to step up and deliver sustainable products at competitive prices in order to truly help. 展开更多
关键词 ESG FACTORS SUSTAINABILITY MILLENNIALS
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