Geographic information is based on observations or measurements. The Open Geospatial Consortium (OGC) has developed an implementation specification for observations and measurements (O&M). It specifies precisely how to encode information. Yet, the O&M conceptual model does not specify precisely which real-world entities are denoted by the specified information objects. We provide formal semanti...

PURPOSE First, to show that accurate formulas for scattering power T must take into account the competition between the Gaussian core and the single scattering tail of the angular distribution, which affects the rate of change in the Gaussian width and leads to the single scattering correction (SSC). Second, to show that the SSC requires that T(x) be nonlocal: Besides material properties and en...

We investigated the enhancment of the upconversion luminescence (UCL) of NaYF4:Yb 3 + /Er 3 + co-doped nanocrystals using a 3D plasmonic nanoantenna architecture: disk-coupled dots-onpillar antenna array (D2PA). By optimizing the D2PA structure, we observed a 310-fold UCL enhancement uniformly over a large area and an 8-fold reduction in the luminescence decay time. The enhancement factor is tw...

A new neural network system for classification of the cardiac rhythm is presented in this paper. The system is composed of two neural network classifiers : a morphological classifier cascaded to a timing classifier. While the morphological classifier classify the P and QRS complexes into normal and/or abnormal beats, the timing classifier takes as inputs the information of the morphological cla...

A mvkrr is made of the techniqws that have been developed or are being developed in the United Kilngdon for flight vibration testing and flight flutter testing aircraft. This includes a description of the instnznentation used for recotiing the Vibratioml response, and a comparative assessment of the vaious methods used for exciting the aircraft in i'lipht flutter tests.

Experimental techniques are developed to determine the applicability of a particular luminescing center for use in a luminescent solar concentrator (LSC). The relevant steady-state characteristics of eighteen common organic laser dyes are given. The relative spectral homogeneity of such dyes are shown to depend upon the surrounding material using narrowband laser excitation. We developed three ...

Figure 1. Millipede luminescence and predation. (A) Motyxia sequoiae photographed in natural light, and (B) entirely with light from bioluminescence; (C) Mean proportion of millipedes attacked versus luminescence. Number of individuals attacked above bars; (D) Rodent incisor marks in clay millipede; (E) Live millipede (arrow) with anterior segments 1–14 missing after predator attack. Biolumines...

References pa.2009.0328.full.html#ref-list-1 http://rspa.royalsocietypublishing.org/content/early/2009/10/05/rs This article cites 28 articles, 2 of which can be accessed free P<P Published online 7 October 2009 in advance of the print journal. Subject collections (78 articles) fluid mechanics • (106 articles) applied mathematics • (80 articles) mechanical engineering • Articles on similar t...

background :soft tissue profile can be widely different in various populations. furthermore, this profile can be also continues to change throughout life. however, there are few studies that quantitatively evaluate the soft tissue profile in iranian population. in order to determine normal reference values of facial parts in our populations, we aimed to measure standards for facial soft tissue ...