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奇妙的植物
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作者 frank rosillo-calle 熊利民 汪莉 《世界科学》 1990年第12期16-16,共1页
富含蛋白质的藻类是食物、原料和能源的一个丰富而又便宜的来源。但种植藻类的高花费,消费者能否接受以及对它安全性的怀疑影响了藻类大规模地商业化种植。然而,生物技术领域最新进展,使得种植藻类变得经济可行.科学家们正在解出藻类的... 富含蛋白质的藻类是食物、原料和能源的一个丰富而又便宜的来源。但种植藻类的高花费,消费者能否接受以及对它安全性的怀疑影响了藻类大规模地商业化种植。然而,生物技术领域最新进展,使得种植藻类变得经济可行.科学家们正在解出藻类的遗传密码组成,以便能够分离出控制特定性状的基因。当更多遗传重组的方法成为可能时,能够控制的产品数目也会随之增加。有多少种可独立的基因,就将会有多少种产品.例如,Dunaliella salina是第一个被用于商业化生产化学物质的小型藻类,它能产生β-胡萝卜素或其50%的体重是甘油。细胞含有高达72%脂肪的小型藻类已被分离出来,它可以作为高质量的燃料。藻类是一个还未被探索的、占全球三分之一植物生物量的类型。估计有150,000种,但仅有30,000种被确定,对小球藻(Chlorella)、螺旋藻(Spirulina)和Dunaliella这三个已经引起了很强商业性兴趣的种还未采取任何商业性措施。 展开更多
关键词 植物养殖 藻类养殖
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Renewable energy investment in China:the impact of low oil prices
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作者 Judith Alazraque-Cherni Jiayi He frank rosillo-calle 《Economic and Political Studies》 2016年第3期278-298,共21页
The promotion of renewable energy(RE)technology in China has been paramount in the country’s policy to reinforce energy security,reduce air pollution from coal,oil and gas,and tackle climate change.This study examine... The promotion of renewable energy(RE)technology in China has been paramount in the country’s policy to reinforce energy security,reduce air pollution from coal,oil and gas,and tackle climate change.This study examines whether the RE sector in China(primarily solar and wind)might suffer an immediate or long-term backlash as the result of cuts in oil import costs.The demand for oil in China has increased at an astounding rate since the 1980s.In the face of its burgeoning economy and multiplying vehicle fleet,energy security has become a significant preoccupation for policy makers.The rapid fall in oil prices on the international market since June 2014 is likely to improve security of supply and positively impact the nation’s economy.However,the fate of another energy sector,RE technology is less predictable.The article proposes a quantitative model to compare oil demand and prices over recent years with the impact on investment in RE,taking into account that the main competitor of RE is coal rather than oil.How energy policy has evolved and adapted over this period is also discussed.It is observed that lower oil prices decrease RE investments but reduce concerns over energy security.But,the strength of the impact depends on the duration of low oil prices and its volatility.The commitment of the government to reduce global CO_(2) emissions may not be overlooked. 展开更多
关键词 Renewable energy oil price energy policy investment in renewables China
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