9,451 research outputs found
Analysis on Structural Benefit of Jilin Cultural and Creative Industries
Cultural Creative Industry is a new industry in 21 century, and is also a new growth point in the local economic development. In recent years, Cultural Creative Industry in Jilin Province has made remarkable development and has greatly promoted the local economic growth. The paper estimates the structural benefit of Cultural Creative Industry in Jilin Province by using the structural deviation and comparable labor productivity index, and researches the allocation proportion and correlations of the elements of labor and capital in the industry, accordingly unearth the problems existed in the internal structure of the industry and provide counter planes to the coordinated growth of the industry. Key words: Cultural Creative Industry; Structural Benefit; Structural Deviation; Comparative Labor Productivit
Broadband enhancement of light harvesting in luminescent solar concentrator
Luminescent solar concentrator (LSC) can absorb large-area incident sunlight,
then emit luminescence with high quantum efficiency, which finally be collected
by a small photovoltaic (PV) system. The light-harvesting area of the PV system
is much smaller than that of the LSC system, potentially improving the
efficiency and reducing the cost of solar cells. Here, based on Fermi-golden
rule, we present a theoretical description of the luminescent process in
nanoscale LSCs where the conventional ray-optics model is no longer applicable.
As an example calculated with this new model, we demonstrate that a slot
waveguide consisting of a nanometer-sized low-index slot region sandwiched by
two high-index regions provides a broadband enhancement of light harvesting by
the luminescent centers in the slot region. This is because the slot waveguide
can (1) greatly enhance the spontaneous emission due to the Purcell effect, (2)
dramatically increase the effective absorption cross-section of luminescent
centers, and (3) strongly improve the quantum efficiency of luminescent
centers. It is found that about 80% solar photons can be ultimately converted
to waveguide-coupled luminescent photons even for a low luminescent quantum
efficiency of 0.5. This LSC is potential to construct a tandem structure which
can absorb nearly full-spectrum solar photons, and also may be of special
interest for building integrated nano-PV applications
The Super-cycle Mechanism and Model of Enterprise Expansion
In this paper, as the super-cycle theory of self-organization integrating methodology for enterprise expansion process, we study the super-cycle coupling mechanism of the enterprise and the environment, enterprises and enterprises ,and among factors within the enterprises, then construct the super-cycle model of M & A expansion , virtual enterprise expansion and union expansion to effectively combine resources ,and make synergies spiral under nonlinear . Key words: super-cycle theory, Merger expansion, Virtual enterprise expansion, Union expansion Résumé: Dans l’article présent, comme la théorie de super-cycle d’auto-organisation intégrant la méthodologie du processus de l’expansion de l’entreprise, on étudie le mécanisme de liaison de super-cycle entre l’entreprise et l’environnement, entre les entreprises et parmi les facteurs intérieurs de l’entreprise, et puis construit le modèle de super-cycle de l’expansion M&A, l’expansion virtuelle de l’entreprise et l’expansion d’union afin de combiner effectivement les ressources et faire synergie spirale non-linéaire. Mots-Clés: théorie de super-cycle, expansion de fusion, expansion virtuelle de l’entreprise, expansion d’unio
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