4,399 research outputs found
Tracking ocean heat uptake during the surface warming hiatus.
Ocean heat uptake is observed to penetrate deep into the Atlantic and Southern Oceans during the recent hiatus of global warming. Here we show that the deep heat penetration in these two basins is not unique to the hiatus but is characteristic of anthropogenic warming and merely reflects the depth of the mean meridional overturning circulation in the basin. We find, however, that heat redistribution in the upper 350 m between the Pacific and Indian Oceans is closely tied to the surface warming hiatus. The Indian Ocean shows an anomalous warming below 50 m during hiatus events due to an enhanced heat transport by the Indonesian throughflow in response to the intensified trade winds in the equatorial Pacific. Thus, the Pacific and Indian Oceans are the key regions to track ocean heat uptake during the surface warming hiatus
RESEARCH ON ENTERPRISE CORE COMPETENCE AND MANAGERIAL HUMAN RESOURCE STRATEGY
This paper aims to introduce the meaning, components, dimensions and types of enterprise core competence. In addition, the framework of human resource strategy for managing enterprise core competence is also proposed. To identify enterprise core competence, and discuss the relationship between core competence and human resource strategy, methods of case study and documents analysis are also adopted. Key words: core competency, human resource, strateg
Chiral topological excitonic insulator in semiconductor quantum wells
We present a scheme to realize the chiral topological excitonic insulator in
semiconductor heterostructures which can be experimentally fabricated with a
coupled quantum well adjacent to twoferromagnetic insulating films. The
different mean-field chiral topological orders, which are due to the change in
the directions of the magnetization of the ferromagnetic films, can be
characterized by the TKNN numbers in the bulk system as well as by the winding
numbers of the gapless states in the edged system. Furthermore, we propose an
experimental scheme to detect the emergence of the chiral gapless edge state
and distinguish different chiral topological orders by measuring the thermal
conductance.Comment: 14 pages, 4 figure
(1S*,2R*,4aS*,6aS*,6bR*,10S*,12aR*,14aS*)-10-Hydroxy-1,2,6a,6b,9,9,12a-heptamethylperhydropicene-4a,14a-carbolactone
The title compound, C30H48O3, was extracted from the plant Dracocephalum rupestre Hance. The molecule contains five fused cyclohexane rings and one five-membered lactone ring. Intermolecular O—H⋯O hydrogen bonds between the hydroxyl and carbonyl groups link the molecules into chains along [010]. The absolute structure has not been determined
- …