开放课程——最近更新(30天)
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1. [英语]Industrial Needs for Multilingual Information Access and Available Resources[多语言信息访问和可用资源的工业需求]
  Gregory Grefenstette(视频讲座网)
Grefenstette introduced Exalead as a global software provider in the enterprise and Web search markets, which tries to integrate research functions in...
更新时间:2017-07-24 17:14:23

2. [英语]Weapons of Mass Confusion: Assessing the True Risks[大规模混乱的武器:评估真正的风险]
  Miller Steven E;Owen Coté Jr;Philip Morrison;Kosta Tsipis(视频讲座网)
Panelists gathered for this discussion agree that when setting weapons policy it is counterproductive to lump weapons together. The dangers from nucle...
更新时间:2017-07-24 16:57:50

3. [英语]Lecture 9: Currents, Resistivity, Ohm's Law[第9讲:电流,电阻率,欧姆定律]
  Lewin G Walter H(视频讲座网)
//"When positive charges move in unintelligible directions, then per definition, we say the current goes in this direction. When negative charges...
更新时间:2017-07-24 16:45:04

4. [英语]Lecture 22: Kepler's Laws - Elliptical Orbits - Satellites - Change of Orbits - Ham Sandwich[第22讲:开普勒定律 - 椭圆轨道 - 卫星 - 轨道变化 - 火腿三明治]
  Lewin G Walter H(视频讲座网)
**1. Kepler's Laws and Elliptical Orbits:** A review of equations for the period, velocity and mechanical energy of a circular orbit is given. Kepler...
更新时间:2017-07-24 16:33:15

5. [英语]Lecture 3 - Double Minima, Earnshaw's Theorem and Plum-Puddings[讲座3 - 双最小值,恩萧的定理和李子布丁]
  J Michael McBride(视频讲座网)
Continuing the discussion of Lewis structures and chemical forces from the previous lecture, Professor McBride introduces the double-well potential of...
更新时间:2017-07-15 15:59:37

6. [英语]Lecture 12 - The Persian Wars[第12讲 - 波斯战争]
  Donald Kagan(视频讲座网)
In this lecture, Professor Kagan examines in detail the development, growing pains, and emergence of Athenian democracy. He argues that the tyranny un...
更新时间:2017-07-15 15:46:40

7. [英语]Lecture 32 - Stereotopicity and Baeyer Strain Theory[讲座32 - Stereotopicity和拜尔应变理论]
  J Michael McBride(视频讲座网)
Why ethane has a rotational barrier is still debatable. Analyzing conformational and configurational stereotopicity relationships among constitutional...
更新时间:2017-07-15 15:36:16

8. [英语]Lecture 13 - The Athenian Empire[第13讲 - 雅典帝国]
  Donald Kagan(视频讲座网)
In this lecture, Professor Kagan traces the development and the power of the Persian empire. He also shows how the Persian empire and the Greek world ...
更新时间:2017-07-15 15:28:19

9. [英语]Lecture 3 - Technology and Invention in Finance[第3讲 - 金融技术与发明]
  Shiller Robert J(视频讲座网)
Technology and innovation underlie finance. In order to manage risks successfully, particularly long-term, we must pool large amounts of risk among ma...
更新时间:2017-07-13 14:52:31

10. [英语]Lecture 22 - Repeated games: cheating, punishment, and outsourcing[第22课 - 重复博弈:作弊、惩罚和外包]
  Benjamin Polak(视频讲座网)
In business or personal relationships, promises and threats of good and bad behavior tomorrow may provide good incentives for good behavior today, but...
更新时间:2017-07-13 14:51:49

11. [英语]Lecture 15 - Athenian Democracy[第15讲 - 雅典民主]
  Donald Kagan(视频讲座网)
In this lecture, Professor Kagan describes the mechanics of the Delian League and its transformation into the Athenian empire. This transformation cau...
更新时间:2017-07-13 14:50:09

12. [英语]Lecture 19 - Philip Roth, The Human Stain[讲座19 - 菲利普·罗斯,《人性污点》 ]
  Amy Hungerford(视频讲座网)
In this lecture on The Human Stain, Professor Hungerford traces the ways that Roth's novel conforms to and pushes beyond the genre she calls the Ident...
更新时间:2017-07-13 14:47:15

13. [英语]Lecture 24 - Climate and the Distribution of Life on Earth[第24讲 - 气候与地球上的生命分布]
  Stearns Stephen C(视频讲座网)
This lecture provides an overview of the physical aspects of earth's biomes. Temperature, water, latitude, and altitude all come into play. Regions wi...
更新时间:2017-07-13 14:44:31

14. [英语]Lecture 4 - Portfolio Diversification and Supporting Financial Institutions (CAPM Model)[第4讲 - 投资组合多样化和支持金融机构(CAPM模型)]
  Shiller Robert J(视频讲座网)
Portfolio diversification is the most fundamental concept of risk management. The allocation of financial resources in stocks, bonds, riskless, assets...
更新时间:2017-07-13 14:42:35

15. [英语]Lecture 24 - Asymmetric information: auctions and the winner's curse[讲座24 - 不对称信息:拍卖和赢家的诅咒]
  Benjamin Polak(视频讲座网)
We discuss auctions. We first distinguish two extremes: common values and private values. We hold a common value auction in class and discover the win...
更新时间:2017-07-13 14:38:23
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