谁知道怎么下载2011数学建模c题的题目啊...

2011年美国数学建模竞赛题目
PROBLEM A: Snowboard Course&
Determine the shape of a snowboard course (currently known as
a “halfpipe”) to maximize the production of “vertical air” by a
skilled snowboarder.&
"Vertical air" is the maximum vertical distance above the edge
of the halfpipe.&
Tailor the shape to optimize other possible requirements, such
as maximum twist in the air.&
What tradeoffs may be required to develop a “practical”
PROBLEM B: Repeater Coordination&
The VHF radio spectrum involves line-of-sight transmission and
reception. This limitation can be overcome by “repeaters,” which
pick up weak signals, amplify them, and retransmit them on a
different frequency. Thus, using a repeater, low-power users (such
as mobile stations) can communicate with one another in situations
where direct user-to-user contact would not be possible. However,
repeaters can interfere with one another unless they are far enough
apart or transmit on sufficiently separated
frequencies.&
In addition to geographical separation, the “continuous
tone-coded squelch system” (CTCSS), sometimes nicknamed “private
line” (PL), technology can be used to mitigate interference
problems. This system associates to each repeater a separate
subaudible tone that is transmitted by all users who wish to
communicate through that repeater. The repeater responds only to
received signals with its specific PL tone. With this system, two
nearby repeaters can share the same frequency pair (for receive and
transmit); so more repeaters (and hence more users) can be
accommodated in a particular area.&
For a circular flat area of radius 40 miles radius, determine
the minimum number of repeaters necessary to accommodate 1,000
simultaneous users. Assume that the spectrum available is 145 to
148 MHz, the transmitter frequency in a repeater is either 600 kHz
above or 600 kHz below the receiver frequency, and there are 54
different PL tones available.&
How does your solution change if there are 10,000
Discuss the case where there might be defects in line-of-sight
propagation caused by mountainous areas.&
ICM PROBLEM
PROBLEM C: How environmentally and economically sound are
electric vehicles? Is their widespread use feasible and
practical?&
Click the title below to download a PDF of the 2011 ICM
Your ICM submission should consist of a 1 page Summary Sheet
and a 20 page solution for a total of 21 pages.
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2011年数学建模题目
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2011年大学生数学建模竞赛题目,很全哦!!!!
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1.75亿学生的选择
2011年全国数学建模大赛题目一共有几个啊?……怎么才能得高点的奖啊?
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1.75亿学生的选择
在建模比赛中,无非是两种做法,一是有思路定模型,二是有模型定思路;能做到想出一个富有创新性且合理的思路是的高分的关键,思路要全面,但不要偏,譬如说08年高校学费那道题采用微分方程模型说明长远来看国家承担学费是大势所趋,这就是有一篇国家奖论文的出彩之处.当然,受制于建模经验、模型掌握数量和程度的限制,选择一个熟悉的模型量身定做一个能够突出模型特点的思路,也是一道良方,这时模型的难易程度就成了你的高分的关键.最后,如果你能将好的思路和稀有的模型集合到一起,那就挡不住了~譬如我们在去年~
谢谢额,到时候写论文的时候希望你能帮帮忙额
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其他类似问题
我拿过全国的二等奖,每年都是2个题目。得奖秘诀:1.别迷信高难的数学工具,能用简单的就不用复杂的。2.早写文章,文章一定要通顺、逻辑清楚。摘要至少写1小时。3.写的专业写,杜绝外行话
两个,学好spss可以帮我们统计出数据和做相关的处理,并对数据进行分析,如相关性分析,回归分析等。在经济上,通过建立模型,可以大致的得到一些预测等,还有最优解可以帮我们知道怎么得到最优方案。还有很多类似的。我不学经济学,但主要搞数学建模。平时的很多问题都可以建立模型的,几乎数学建模可以完成生活中的每一种问题,当然要建立一个好的模型并不容易……...
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