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Preventing Benzoquinone-Based Catalyst Aggregation Enables the One-Step Synthesis of Highly Conductive Poly(benzodifurandione) without Post-Reaction Purification. [PDF]
Huang JD +20 more
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Modeling the Removal of Hexavalent Chromium from Aqueous Solution Using a Pyridinium-Based Poly(ionic liquid). [PDF]
Maine A +6 more
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Space-climatic feedback of the magnetic solar cycle through the interplanetary space. [PDF]
Carbone V +3 more
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Evaluating Variability in Extracellular Vesicle Characterization Across Measurement Techniques. [PDF]
Singh PK +10 more
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New record and diet of a poorly known frog, <i>Amolops daorum</i> (Amphibia, Anura) from Vietnam. [PDF]
Pham AV +6 more
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Protein Electron Transfer in Solution, Protein Powders, and Electrode Confinement. [PDF]
Mostajabi Sarhangi S, Matyushov DV.
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The forced van der Pol equation
International Journal of Mathematical Education in Science and Technology, 2009We report on a study of the forced van der Pol equation [image omitted] by solving numerically the differential equation for a variety of values of the parameters e,F and ?. In doing so, many striking and interesting trajectories can be discovered and phenomena such as frequency entrainment, almost periodic solutions, space filling trajectories and ...
Temple H Fay
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