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Geometric-optical (GO) model suitable for forest plantation (GOFP) is a GO model for forest plantations at the stand level developed in this study based on a four-scale GO model a Geometric-Optical Model for Sloping Terrains-II (GOST2), which simulates the bidirectional reflectance distribution function (BRDF) for natural forest canopies. In most previous GO models, tree distributions are often assumed...
This paper puts forward an evaluation index system with 20 indexes and quantitive criteria for geographical ecological environment bearing capacity based on national geographic conditions census data; the evaluation model is determined by comprehensive evaluation method and weighted by analytic hierarchy process; comprehensive suitability zone is introduced through the evaluation results of bearing...
Gap fraction (GF) and clumping index (CI) play key roles in plant light interception, and therefore they have strong impacts on plant growth and canopy radiative transfer processes. On the one hand, in the field of remote sensing, leaves were often assumed to be randomly distributed in tree crowns in previous researches. While this assumption is not correct for many forest canopies, especially for...
Feature selection is an effective technique to reduce the dimensionality of a data set and to select relevant features for the domain problem. Recently, stability of feature selection methods has gained increasing attention. In fact, it has become a crucial factor in determining the goodness of a feature selection algorithm besides the learning performance. In this work, we conduct an extensive experimental...
At present, recycling of the household appliances has become a global common problem of resources reuse, and it is necessary to establish a system of household appliance reverse logistics. This paper selects three major aspects: economic benefits, management level and social benefits, then uses Analytic Hierarchy Process (AHP), 360-degree feedback method and fuzzy comprehensive evaluation method to...
With the rapid economic development, the level of energy utilization is raising quickly, which results in a series of environmental problems. Urban ecosystem, as the major consumer of energy and key point of environmental pollution control, has to carry out environmental performance evaluation in energy utilization to reconcile the economic growth with ecological preservation. This paper aims at providing...
Along with the development of wireless technology and especially 3Gpsilas throw into commercial, the mobile value-added services gradually popular used, such as mobile automatic question and answer (Q/A) system. But the current mobile Q/A system mainly based on FAQ database, the question and answer can not be validated and updated by itself. So this paper attempts to implement a p2p based model updatable...
Based on entropy weight-based gray relational method, a new outcomes severity model of security assessment is put forward. This model mainly reflects severity degree and fully shows the influence degree of different factors affecting severity. And risk factor is introduced to assess the system security after contingencies, computed by the product of contingency probability and outcome severity degree...
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