Results 41 to 50 of about 6,935,481 (374)
Optimization Schemes for Efficient Multiple Exciton Generation and Extraction in Colloidal Quantum Dots [PDF]
, 2016 Multiple exciton generation is a process in which more than one electron hole pair is generated per absorbed photon. It allows us to increase the efficiency of solar energy harvesting. Experimental studies have shown the multiple exciton generation yield
Andreas Wacker +4 more
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Plant Phenolics: Extraction, Analysis and Their Antioxidant and Anticancer Properties
Molecules, 2010 Phenolics are broadly distributed in the plant kingdom and are the most abundant secondary metabolites of plants. Plant polyphenols have drawn increasing attention due to their potent antioxidant properties and their marked effects in the prevention of ...
J. Dai, R. Mumper
semanticscholar +1 more source
Multi-layered effects of Panax notoginseng on immune system
Pharmacological ResearchRecent research has demonstrated the immunomodulatory potential of Panax notoginseng in the treatment of chronic inflammatory diseases and cerebral hemorrhage, suggesting its significance in clinical practice. Nevertheless, the complex immune activity of
Chunhao Yang +5 more
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MATEC Web of Conferences, 2017 This paper depicts certain thermodynamic processes possibly involved in the oil industry specific activities operation and/or proper equipment maintenance.
Avram Lazăr +2 more
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Sustainable Environment Research, 2018 Mechanism of Cr(VI) bio-removal from mine drainage was studied using a native fungal isolate. The Cr(VI) tolerant species, from chromite mining at Sukinda mine water fungus characterized as Aspergillus fumigatus Fresenius was applied after inactivation ...
Biswaranjan Dhal +2 more
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Shipin yu jixieObjectiveTo evaluation the uncertainty of determination of methamidophos residues in vegetable oil by ultra-performance liquid chromatography-tandem mass spectrometry.MethodsA vegetable oil sample was detected by ultra-high performance liquid ...
GAO Han +3 more
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FULLY AUTOMATED GIS-BASED INDIVIDUAL TREE CROWN DELINEATION BASED ON CURVATURE VALUES FROM A LIDAR DERIVED CANOPY HEIGHT MODEL IN A CONIFEROUS PLANTATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The generation of high resolution canopy height model (CHM) from LiDAR makes it possible to delineate individual tree crown by means of a fully-automated method using the CHM’s curvature through its slope.
R. J. L. Argamosa +7 more
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Distant supervision for relation extraction without labeled data
Annual Meeting of the Association for Computational Linguistics, 2009 Modern models of relation extraction for tasks like ACE are based on supervised learning of relations from small hand-labeled corpora. We investigate an alternative paradigm that does not require labeled corpora, avoiding the domain dependence of ACE ...
Mike D. Mintz +3 more
semanticscholar +1 more source
Frontiers in Molecular BiosciencesMelanin is an amino acid derivative produced by melanocyte through a series of enzymatic reactions using tyrosinase as substrate. Human skin and hair color is also closely related to melanin, so understanding the mechanisms and proteins that produce ...
Feifei Wang +15 more
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Entity, Relation, and Event Extraction with Contextualized Span Representations [PDF]
Conference on Empirical Methods in Natural Language Processing, 2019 We examine the capabilities of a unified, multi-task framework for three information extraction tasks: named entity recognition, relation extraction, and event extraction.
David Wadden +3 more
semanticscholar +1 more source