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60篇 您的检索式：作者名="Lenat"

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	题名	作者	年代	出处	被引量
1	Wavelet Analysis of the Schwabe Cycle Properties in Solar Activity显示文摘Properties of the Schwabe cycles in solar activity are investigated by using wavelet transform. We study the main range of the Schwabe cycles of the solar activity recorded by relative sunspot numbers, and find that the main range of the Schwabe cycles is the periodic span from 8-year to 14-year. We make the comparison of 11-year's phase between relative sunspot numbers and sunspot group numbers. The results show that there is some difference between two phases for the interval from 1710 to 1810, while the two phases are almost the same for the interval from 1810 to 1990.	Gui-Ming LeNational Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 Center for Space Science and Applied Research Center, Chinese Academy of Sciences, Beijing 100080	2004	Chinese Journal of Astronomy and Astrophysics2004，4，6：	7
2	Cyc : A Large-scale Investment in Knowledge Infrastructure 显示文摘	Lenat D B	1995	Communications of the ACM1995，38，11：	1
3	Building expert system显示文摘	Hayes-Roth F Waterman D A Lenat D B	1983	Addison-Wesley Pul)1983，，1：	1
4	CYC:A large-scale investment in knowledge infrastructure显示文摘	Lenat D	1995	Communications of the ACM1995，38，11：	1
5	CYC:a large scale investment in knowledge infrastructure 显示文摘	LENAT D B	1995	Communication of ACM1995，33，8：	1
6	A multi-agency comparison of aquatic macroinvertebrate-based stream bioassessment methodologies显示文摘	Houston L Barbour M T Lenat D	2002	Ecological Indicators2002，，1：	1
7	Effects of land use on water quality and aquatic biota of three North Carolina Piemont streams 显示文摘	Lenat D R Crawford J K	1994	Hydrobiologia1994，294，：	1
8	On the thresholds of knowledge 显示文摘	LENAT D B FEIGENBAUM E A	1991	Artif Intell1991，47，1：	1
9	Effects of Land Use on Water Quality and Aquatic Biota of Three North Carolina Piedmont Sla'eams显示文摘	Lenat D R Crawford J K	1994	Hydrobiologia1994，294，3：	1
10	Effects of land-use on water quality and aquatic biota of three North Carolina Piedmont Streams 显示文摘	Lenat D R Crawford J K	1994	Hydrobiologia1994，294，3：	1
11	Cyc:A Midterm Report显示文摘	Guha RV Lenat DB	1990	AI magazine1990，11，3：	1
12	Water quality assessment of streams using a qualitative collection method for benthic macro- invertebrates 显示文摘	Lenat D R	1988	Journal of the North American Benthological Society1988，7，：	1
13	Water Quality Assessment of Stream Using a Qualitative Collection Method for Benthic Macroinvertebrates显示文摘	LENAT D R	1998	Journal of the North American Benthological Society1998，7，3：	1
14	On the thresholds of knowledge显示文摘	Lenat D B Feigenbaum E A	1991	Artificial Intelligence1991，47，1：	1
15	A Biotic Index for the Southeastern United States:Derivation and List of Tolerance Values,with Criteria for Assigning Water Quality Ratings显示文摘	LENAT D R	1993	Journal of the North American Benthological Society1993，12，3：	1
16	CYC: A Large-scale Investment in knowledge Infra-structure显示文摘	Lenat D	1995	Communications of the ACM1995，38，11：	1
17	Effects of land use onwater quality and aquatic biota of three North Carolina piedmont streams显示文摘	Lenat D R Crawford J K	1994	Hydrobiologia1994，294，3：	1
18	CYC:A Mid-Term Report显示文摘	Guha R V Lenat D B	1990	AI Magazine1990，，：	1
19	Effects of land-use on water quality and aquatic biota of three North Carolina Piedmont Streams显示文摘	Lenat DR Crawford JK		0，，03：	1
20	CYC:A large-scale investment in knowledge infrastructure显示文摘	LENAT D B	1995	Communications of the ACM1995，38，11：	1

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