老巫婆
发表于 2025-3-27 00:46:21
John A. Strandthe interference of ambient noise, the arc sound signal is highly complex and noisy, which seriously limits the application of arc sound signals. In this paper, a single-channel blind source separation (BSS) algorithm based on the ensemble empirical mode decomposition (EEMD) is proposed to purify an
INCH
发表于 2025-3-27 02:13:27
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MURAL
发表于 2025-3-27 07:47:23
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官僚统治
发表于 2025-3-27 10:18:04
E. Bergman,L.-A. Hansson,A. Persson,J. Strand,P. Romare,M. Enell,W. Granéli,J. M. Svensson,S. F. Hamo the stair-stepping effect and the liquidity of molten metal, the achieved geometric accuracy and surface quality are still very limited. The combination of WAAM and machining, namely hybrid manufacturing, provides a fundamental solution to the above problem. Because machining is performed after de
cocoon
发表于 2025-3-27 13:36:00
Book 1999-green algal blooms.Although it is a case study of Lake Ringsjön (southern Sweden),the background, problems and measures are applicable to many lakesthroughout the world. From a limnological point of view, the LakeRingsjön story began more than 100 years ago, and during the last20 years the sampling
除草剂
发表于 2025-3-27 19:33:52
sance blue-green algal blooms.Although it is a case study of Lake Ringsjön (southern Sweden),the background, problems and measures are applicable to many lakesthroughout the world. From a limnological point of view, the LakeRingsjön story began more than 100 years ago, and during the last20 years th
侵略者
发表于 2025-3-27 22:56:44
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Graduated
发表于 2025-3-28 02:40:45
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FOR
发表于 2025-3-28 09:48:57
Lack of a top-down effect on the zooplankton community after a cyprinid reduction, for a proportional length measurement of all grazers (=cladocerans+calanoid copepods). We found no evidence of a top-down effect on zooplankton biomass or length following the reduction in planktivorous fish. The possibility of an ‘indirect bottom-up effect’ due to cyprinid fish directly affecting nutrient availability is discussed.
臆断
发表于 2025-3-28 12:39:58
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