The Experts below are selected from a list of 134367 Experts worldwide ranked by ideXlab platform
Ozlem Sel - One of the best experts on this subject based on the ideXlab platform.
-
Charge Storage Properties of Nanostructured Poly (3,4–ethylenedioxythiophene) Electrodes Revealed by Advanced Electrogravimetry
Nanomaterials, 2019Co-Authors: D. Aradilla, Hubert Perrot, G. Bidan, F. Billon, Catherine Debiemme, Ozlem SelAbstract:PEDOT nanowires (NWs) directly grown on the conducting electrode of quartz resonators enable an advanced electrogravimetric analysis of their charge storage behavior. Electrochemical quartz crystal microbalance (EQCM) and its coupling with electrochemical impedance spectroscopy (ac-electrogravimetry or AC-EG) were used complementarily and reveal that TBA + , BF 4 − and ACN participate in the charge compensation process with different kinetics and quantity. BF 4 − anions were dominant in terms of concentration over TBA + cations and the anion transfer results in the exclusion of the solvent molecules. TBA + concentration variation in the electrode was small compared to that of the BF 4 − counterpart. However, M w of TBA + is much higher than BF 4 − (242.3 vs. 86.6 g·mol −1). Thus, TBA + cations' gravimetric contribution to the EQCM response was more significant than that of BF 4 −. Additional contribution of ACN with an opposite flux direction compared with BF 4 − , led to a net mass gain/lost during a negative/positive potential scan, masking partially the anion response. Such subtleties of the interfacial ion transfer processes were disentangled due to the Complementarity of the EQCM and AC-EG methodologies, which were applied here for the characterization of electrochemical processes at the PEDOT NW electrode/organic electrolyte interface.
D. Aradilla - One of the best experts on this subject based on the ideXlab platform.
-
Charge Storage Properties of Nanostructured Poly (3,4–ethylenedioxythiophene) Electrodes Revealed by Advanced Electrogravimetry
Nanomaterials, 2019Co-Authors: D. Aradilla, Hubert Perrot, G. Bidan, F. Billon, Catherine Debiemme, Ozlem SelAbstract:PEDOT nanowires (NWs) directly grown on the conducting electrode of quartz resonators enable an advanced electrogravimetric analysis of their charge storage behavior. Electrochemical quartz crystal microbalance (EQCM) and its coupling with electrochemical impedance spectroscopy (ac-electrogravimetry or AC-EG) were used complementarily and reveal that TBA + , BF 4 − and ACN participate in the charge compensation process with different kinetics and quantity. BF 4 − anions were dominant in terms of concentration over TBA + cations and the anion transfer results in the exclusion of the solvent molecules. TBA + concentration variation in the electrode was small compared to that of the BF 4 − counterpart. However, M w of TBA + is much higher than BF 4 − (242.3 vs. 86.6 g·mol −1). Thus, TBA + cations' gravimetric contribution to the EQCM response was more significant than that of BF 4 −. Additional contribution of ACN with an opposite flux direction compared with BF 4 − , led to a net mass gain/lost during a negative/positive potential scan, masking partially the anion response. Such subtleties of the interfacial ion transfer processes were disentangled due to the Complementarity of the EQCM and AC-EG methodologies, which were applied here for the characterization of electrochemical processes at the PEDOT NW electrode/organic electrolyte interface.
Fred Ahrens - One of the best experts on this subject based on the ideXlab platform.
-
knowledge Complementarity and knowledge exchange in supply channel relationships
International Journal of Information Management, 2012Co-Authors: Narayan S Umanath, Fred AhrensAbstract:Abstract Existing literature on knowledge exchange in inter-organizational relationships (e.g., a supply channel) reveals two opposing forces at work: (1) collaborative behavior and (2) opportunistic behavior. A concurrent assessment of the opposing perspectives and the contingencies under which each is relevant for supply channel performance can add valuable insights about the dynamics of knowledge exchange. We juxtapose the two behavior patterns using social capital theory and transaction cost economics (TCE) respectively as the explicators and employ knowledge Complementarity as the contingency to reconcile the opposing behavior patterns. The choice of knowledge Complementarity in this role stems from ample theoretical and empirical support in prior literature about the criticality of this factor in inter-firm knowledge exchange. We propose a research model, and use data from a field study of 82 firms in the Electronics Manufacturing Services (EMS) industry to test our model. Our findings indicate that overall inter-organizational trust (a surrogate for social capital) and knowledge Complementarity promote knowledge exchange behavior in a supply channel. The retarding effect of risk of opportunism (a TCE dimension) manifests only when knowledge Complementarity is low. However, when knowledge Complementarity is high, contrary to expectations, inter-organizational trust appears to impede knowledge exchange. Our post hoc analysis of this intriguing, counterintuitive result leads us to knowledge interdependence and dependence asymmetry as potentially critical antecedents to knowledge Complementarity. Implication of our findings to academic research and supply chain scenario is also articulated.
Eric Fang - One of the best experts on this subject based on the ideXlab platform.
-
Knowledge Complementarity, knowledge absorption effectiveness, and new product performance: The exploration of international joint ventures in China
International Business Review, 2013Co-Authors: Zhi Yang, Gregory J. Fisher, Chaoqun Ma, Eric FangAbstract:Firms use international joint ventures (IJVs) to access and learn from partners’ knowledge and thus enhance their new product performance, especially when the partners have complementary knowledge bases. Most of the existing literature assumes that knowledge Complementarity can directly lead to enhanced new product performance, while ignoring the mediating role of knowledge absorption effectiveness and moderating effects of organizational structure and organizational culture to integrate and manage knowledge Complementarity. Using dyadic data from 119 IJVs in China, this article suggests that knowledge Complementarity influences IJV new product performance through the full mediation of knowledge absorption effectiveness. Also, the results suggest that an IJV's departmentalization of organizational structure significantly hurts the effect of knowledge Complementarity on knowledge absorption effectiveness, while a strong learning culture of the IJV can significantly enhance such effects.
Peter B Reich - One of the best experts on this subject based on the ideXlab platform.
-
spatial Complementarity in tree crowns explains overyielding in species mixtures
Nature Ecology and Evolution, 2017Co-Authors: Laura Williams, Alain Paquette, Jeannine Cavenderbares, Christian Messier, Peter B ReichAbstract:Deciphering the mechanisms that link biodiversity with ecosystem functions is critical to understanding the consequences of changes in biodiversity. The hypothesis that Complementarity and selection effects drive relationships between biodiversity and ecosystem functions is well accepted, and an approach to statistically untangle the relative importance of these effects has been widely applied. In contrast, empirical demonstrations of the biological mechanisms that underlie these relationships remain rare. Here, on the basis of a field experiment with young trees, we provide evidence that one form of Complementarity in plant communities-Complementarity among crowns in canopy space-is a mechanism, related to light interception and use, that links biodiversity with ecosystem productivity. Stem biomass overyielding increased sharply in mixtures with greater crown Complementarity. Inherent differences among species in crown architecture led to greater crown Complementarity in functionally diverse species mixtures. Intraspecific variation, specifically neighbourhood-driven plasticity in crowns, further modified spatial Complementarity and strengthened the positive relationship with overyielding-crown plasticity and inherent interspecific differences contributed near equally in explaining patterns of overyielding. We posit that crown Complementarity is an important mechanism that may contribute to diversity-enhanced productivity in forests.
