Results 101 to 110 of about 604,221 (250)
The Decomposition of Tree-Ring Series for Environmental Studies
, 1987 Signal extraction in tree-ring research is considered as a general time series decomposition problem. A linear aggregate model for a hypothetical ring-width series is proposed, which allows the problem to be reduced to the estimation and extraction of ...
Cook, Edward R.
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n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
Giant Sequoia Ring-Width Chronologies from the Central Sierra Nevada, California
, 1992 Giant sequoia was one of the first species that A. E. Douglass examined in his pioneering tree- ring research. Recent attention to sequoia, stimulated by fire history studies in sequoia groves, has resulted in new ring-width chronologies based on both ...
Swetnam, Thomas W. +4 more
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Advanced Materials, EarlyView.The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley +1 more source
Tree-Ring Chronologies from Nepal
, 1992 Ten ring-width based chronologies from Nepal are described and the prospects for further dendroclimatic work there reviewed briefly. The initial results are encouraging, and more intensive subregional sampling is called for. All the cores examined showed
LaMarche, Valmore C., Jr. +2 more
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Single Crystals of Perylene Diimide‐Based Two‐Dimensional Covalent Organic Frameworks
Advanced Materials, EarlyView.Synthesizing extended crystals of two‐dimensional covalent organic frameworks (2D COFs) has remained a major challenge. Here, we report a high‐temperature double‐modulator strategy that provides access to new perylene diimide (PDI)‐based COFs with crystal sizes of up to 50 µm.
Ling Zhang +12 more
wiley +1 more source
Local Mean Decomposition and Weighted Kurtosis Index for Bearing Defect Detection
Algerian Journal of Signals and SystemsVibration signal analysis is an effective technique for detecting bearing defects, and it proposes an approach that involves signal processing methods to extract information about the defects.
Karim BOUAOUICHE +2 more
doaj +1 more source
Tree-Ring Dating of Two Log Buildings in Central Texas, USA
, 1992 Tree-ring dating was used to develop construction scenarios for two log structures, the Draper and the Fuller buildings. in the Edwards Plateau region of Texas. The Draper building was constructed in 1902-3, and added onto in 1906.
Harlan, Thomas P. +1 more
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, 2022 A technical survey and conservation of the painting is being undertaken by Conservator Genevieve Silvester. The date of the painting is unknown, but it is one of several paintings by Brueghel the Younger depicting the same scene painted between c1616 and
Boswijk, Gretel
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