• Korean Journal of Logic
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• v.11 no.2
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• pp.127-170
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• 2008

This paper aims to present solutions to three intriguing puzzles on causation that Benardete presents by considering the results of infinite series of telescoping events. The main conceptual tool used in the solutions is the notion of collective causation, what many events cause collectively. It is straightforward to apply the notion to resolve two of the three puzzles. It does not seem as straightforward to apply it to the other puzzle. After some preliminary clarifications of the situation that Benardete describes to present the puzzle, however, we can apply the notion to resolve it as well.

• Journal of information and communication convergence engineering
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• v.6 no.3
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• pp.249-254
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• 2008

Moored ocean buoys are technically feasible approach for making sustained time series observation in the oceans and will be an important component of any long-term ocean observing system. The 3M disc buoy carried Zeno 3200, MCCB, Orbcomm, Global Star and Bluetooth module. The deployments have relied on Orbcomm and Global Star as the primary satellite communications system. In addition to detailing our practical experience in the use of Orbcomm and Global Star as high latitudes, we will present some of scientific sensor results regarding real-time oceanographic and meteorological parameters such as wind speed, wave height and etc. In this paper we present the design and implementation of a small-scale buoy sensor network. One of the major challenges is that the network is hard to access after its deployment and hence both hardware and software must be robust and reliable.

• Korean Journal of Logic
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• v.16 no.1
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• pp.17-43
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• 2013

Recently Byeong-Uk Yi has attempted to provide a novel solution to the paradox of before-effect by arguing that, upon drawing our attention to the notion of collective causation, we realize that there is a straightforward solution to the paradox. My aim in this paper is to show that Yi's solution fails. To this end, after making explicit two sources of the puzzlement in the paradox of before-effect, I set two requirements one must meet to resolve the paradox. And I argue that Yi's solution cannot meet both requirements at the same time.