164 research outputs found
Regression results of companies’ property rights and geographic heterogeneity.
Regression results of companies’ property rights and geographic heterogeneity.</p
The regression results of the endogeneity problem.
The regression results of the endogeneity problem.</p
The test results of baseline regression and the mediating effect.
The test results of baseline regression and the mediating effect.</p
The regression results of the endogeneity problem.
The regression results of the endogeneity problem.</p
Definition of primary variables and descriptive statistics.
Definition of primary variables and descriptive statistics.</p
Endogeneity treatment: Two-stage least squares instrumental variables method.
Endogeneity treatment: Two-stage least squares instrumental variables method.</p
DataSheet1_Partial deligandation activated ZIF-67 for efficient electrocatalytic oxygen reduction reaction.doc
Removing the blocked molecular groups and fully exposing the intrinsic active sites of metal-organic frameworks (MOFs) could give full play to their advantages of multi-active sites and multi-channel mass transfer, which will benefit the electrocatalytic oxygen reduction reaction (ORR) in fuel cells. Here, the partial diligandation-activated ZIF-67 (named as ZIF-67–400) with excellent ORR performance was obtained by simple low-temperature pyrolysis. The ORR electrocatalytic activity exhibits a half-wave potential of 0.82 V and the stability of maintaining 96% activity after 10 h of operation, which is comparable to commercial Pt/C. Further research studies reveal that the morphology, special dodecahedron configuration, and crystal structure of ZIF-67-400 are maintained well during the pyrolysis, but some hydrocarbon groups in the ligands are eliminated, resulting in the active sites being exposed and coordinated with the intrinsic porosity, improving the catalytic performance. This work may provide an alternative path for activating the electrocatalytic performance of metal-organic frameworks by low-temperature annealing.</p
Amino acid sequence analysis of DAP3.
<p>(<b>a</b>) The conserved SOD domain of DAP3 revealed by BLASTp analysis online (<a href="http://www.ncbi.nlm.nih.gov/BLASTp" target="_blank">http://www.ncbi.nlm.nih.gov/BLASTp</a>). (<b>b</b>) Specific motifs of DAP3 protein. NIT in the box is the glycosylation site, the shading characters are SOD domain and the asterisks indicate amino acids of oxidative modification sites. Cu = copper binding, Zn = zinc binding, Cu, Zn = copper and zinc binding, S-S = disulfide bond.</p
Comparison of internal helmet images in VR-2D and VR-3D modes.
Comparison of internal helmet images in VR-2D and VR-3D modes.</p
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