20080415REPORT

食品通胀与全球农业挑战
全球食品价格急剧上涨引发发展中国家抗议活动增加,海地政府在暴力冲突后垮台。大米和小麦价格分别在短时间内飙升了75%和120%,导致贫困人口生活更加艰难。农业生产国限制出口以保障国内供应,而生物燃料需求和气候变化进一步推高了粮食成本。
This is the VOA Special English Agriculture Report.

A burning barricade in Port-au-Prince, Haiti
Food inflation has led to growing protests in developing countries. In Haiti, the government fell Saturday after riots in which several people died.
Some rice-producing countries have cut exports to protect their own supplies. World Bank President Robert Zoellick said last week that rice prices have risen around seventy-five percent in just two months, to near historical levels. Wheat prices have risen one hundred twenty percent in the past year.
Senegal has had repeated protests over food prices
Farmers are planting more wheat and rice. But population growth is raising demand. So is the use of food crops to produce biofuels. At the same time, record oil prices have meant higher costs for petroleum-based fertilizers and for energy and transportation.
Food also costs more because more people are eating meat and dairy products in growing economies like India and China. More grain is going to feed cattle.
Weather has also pushed up prices. For example, Australia, a major wheat exporter, faces a drought.
High food prices hit the poor the hardest. Agricultural economist Christopher Barrett at Cornell University says many poor farmers use more of their crops than they sell. He says more investment is needed in agricultural research.
What is needed, says another expert, Gerald Nelson at the University of Illinois, is another Green Revolution to increase productivity.

World Bank President Robert Zoellick holds up bread as he speaks to reporters
This past weekend, the International Monetary Fund and the World Bank held their spring meetings in Washington. The bank president said hunger, malnutrition and food policy were a central issue.
The United Nations World Food Program has appealed for five hundred million dollars by May first. Bob Zoellick said donor countries had promised almost half of the money, but that was not enough.
He said a doubling of food prices over the last three years could push one hundred million people in low-income countries deeper into poverty. And that could hurt future generations.

I.M.F. chief Dominique Strauss-Kahn said the real problem is a food deficit which will probably last for years. He says it can be argued that there are good reasons, connected to climate change, to try to push countries to substitute some kind of biofuel for oil.

But he says nations have to balance the production of biofuel from food crops with biofuel from nonfood resources. Some of the finance ministers in Washington said using food for fuel is a crime against humanity.

And that's the VOA Special English Agriculture Report, written by Jerilyn Watson. I'm Jim Tedder.


My Home Work:

This is the VOA Special English Agriculture report. Food inflation has led to growing protests in deveping contries. In Haiti, the goverment fell Saturday after riots in which several people died.
Some rice producing countries have cut experts to protect their own supplies.
World Bank president Robot Zallit said last weekend that rice prices have risen about 75 percent in just 2 months, to near historical levels. wheat prices have risen 12 percent in the past year. Formers are planting more wheat and rice But population growth is rising demand. So is use of food crops which produce biofuels. At the same time recoder oil prices have ment higer cast for percholing base forcherlisers and for energy and for transportation.
Food also cast more because more people are eating meat and dairy products in growing economies like India and China. More grain is growing to feed cattle. Weather has also pushed out prishes. For example, Austrilia are marger wheat export which faces a drought.
High food prices hit the poor the hotist. Agriculture ## at ## university said many poor formers use more of their crops than they sell. He says more investerment is needed in argriculteral research. What is needed said another expert Janal Norsen at university of Ivilarnoy is another grain resolution to increase productivity. This past weekend the International marnertery found and world bank held their spry meeting in Washionton, the bank president said hanger, ## intrition and food policy were the certral issue. The United Nations world food program has appealed for 500 million dollars by May first. BobZilld said downer country has promised almost half of the money. But that is not enough. He said a doubling food prices over the last three years could push 100 million people in low income countries deeper into poverty and that would hurt future generations.
I am anph chief domain said the wheal problem is the food deficit which will probably last for years. He said he will argued for good reasons connect to clime change to try to push countries to substitute some kind of biolfoil for oil. But he said nations have to banlance the production of biolfoil from food crops with biolfiol with none food resource.
Some of the finance experts in Washtion said using food for fiol is a crime against humanity.
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【微电网】【创新点】基于非支配排序的蜣螂优化算法NSDBO求解微电网多目标优化调度研究(Matlab代码实现)内容概要:本文提出了一种基于非支配排序的蜣螂优化算法(NSDBO),用于求解微电网多目标优化调度问题。该方法结合非支配排序机制,提升了传统蜣螂优化算法在处理多目标问题时的收敛性和分布性,有效解决了微电网调度中经济成本、碳排放、能源利用率等多个相互冲突目标的优化难题。研究构建了包含风、光、储能等多种分布式能源的微电网模型,并通过Matlab代码实现算法仿真,验证了NSDBO在寻找帕累托最优解集方面的优越性能,相较于其他多目标优化算法表现出更强的搜索能力和稳定性。; 适合人群:具备一定电力系统或优化算法基础,从事新能源、微电网、智能优化等相关领域研究的研究生、科研人员及工程技术人员。; 使用场景及目标:①应用于微电网能量管理系统的多目标优化调度设计;②作为新型智能优化算法的研究与改进基础,用于解决复杂的多目标工程优化问题;③帮助理解非支配排序机制在进化算法中的集成方法及其在实际系统中的仿真实现。; 阅读建议:建议读者结合Matlab代码深入理解算法实现细节,重点关注非支配排序、拥挤度计算和蜣螂行为模拟的结合方式,并可通过替换目标函数或系统参数进行扩展实验,以掌握算法的适应性与调参技巧。
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