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Spectrum, IEEE

Issue 12 • Date Dec 1999

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Displaying Results 1 - 8 of 8
  • Site visits illustrate advanced grid design

    Page(s): 64 - 68
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    The authors describe how both China's grid simulation center and India's high-voltage power lines exemplify their grasp of high technology. Developments in those areas will enable the countries to integrate their power systems over wider areas, protect themselves better against outages, and transfer more power over longer distances View full abstract»

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  • The global effects of Asian haze [air pollution]

    Page(s): 50 - 54
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    The authors describe how a thick layer of aerosols just discovered above the Indian Ocean by an international team may be a far-reaching influence on climate systems. The layer of haze was the discovery of the Indian Ocean Experiment (Indoex), an international field experiment that has been collecting surface and atmospheric data over the tropical Indian Ocean since 1996 View full abstract»

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  • Addressing the coal conundrum

    Page(s): 40 - 41
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    While utopian dreams and advancing technology humankind toward carbon-free energy, today's reality is that fossil fuels drive major economies like China's and India's. Coal, above all, is plentiful and readily available. While everyone's best interests are best served by developing hydrogen-rich and/or carbon-free forms of energy that will emit none (or at least much less) of the gases that cause climate change, those options are not yet fully realized. With this in mind, this paper re-examines the situation in China and India and examines what is being done-and what can be done-to address the current fossil fuel situation View full abstract»

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  • Why the Mars probe [accident investigation]

    Page(s): 34 - 39
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    On 23 September, through a series of still-baffling errors, flight controllers at the Jet Propulsion Laboratory, a California Institute of Technology facility under contract to NASA, sent erroneous steering commands to the Mars Climate Observer as it neared the target planet. Obeying blindly like all true robots, the probe, metaphorically speaking, marched off the cliff and was destroyed. NASA assigned three separate teams to investigate the embarrassing, US $125 million debacle and determine its cause. Preliminary public statements faulted a slip-up between the probe's builders and its operators, a failure to convert the English units of measurement used in construction into the metric units used for operation. After six weeks, on 10 November, NASA officials released their preliminary findings. This paper describes an IEEE Spectrum investigation which had been going on separately, using unofficial sources associated with the program and independent experts. Spectrum quickly learned that far more had gone wrong than just a units conversion error. A critical flaw was a program management grown too confident and too careless, even to the point of missing opportunities to avoid the disaster View full abstract»

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  • Balancing the books on energy pricing

    Page(s): 59 - 63
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    The author argues that public policy decisions regarding energy in China must reflect real relative costs, but explains that implementing them can be complicated by economic disparities among regions and consumer groups View full abstract»

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  • Doing better with less energy [fuel-efficient power generation]

    Page(s): 42 - 49
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    The authors describe how many fuel-efficient coal-fired power generation technologies can be adopted at reduced net cost, but argue that, unless barriers to innovation are removed, their adoption will be far from automatic View full abstract»

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  • Networks for homes

    Page(s): 26 - 33
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    Networking technologies are starting to invade the ordinary home-to carry, for example, telephone conversations, television, compact disk, digital versatile disk and MP3 music programs, signals from surveillance cameras, commands for controlling appliances and multimedia news from the Internet. To succeed, home networks will have to be based on standard products operable with any of the media just mentioned. These products include transceivers, network interface cards, gateways, small servers, sensors and controllers, plus a widely accepted operating system. For mass market appeal, the networks will have to be inexpensive, easy to install and the software easy to configure and operate. Home owners, after all, cannot afford to hire information technology managers View full abstract»

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  • The air pollution picture in China

    Page(s): 55 - 58
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    The authors describe how the fumes and floating dust trailing China's rapid economic growth have a concerned government legislating air-quality levels and running energy-reduction programs in the thermal power generation field View full abstract»

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