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 ...

self-association of alcohols; including ethanol, methanol, cyclopentanol and octanol in separate mixtures with inert solvents have been studied using ft-ir spectroscopy. except for the band at 3640 cm–1 in the ir spectrum of the alcohols which is due to the monomer species, the presence of other bands in the region of stretching vibrational frequencies of oh (3100-3700 cm–1) are attributed to t...

Reversible mechanochromic luminescence (ML) is known for difluoroboron β-diketonates (BF2bdks). Here, we report ML for the methoxy-substituted dinaphthoylmethane (dnmOMe) ligand even without coordination to boron. In addition, dnmOMe shows solvatochromism and aggregation-induced emission (AIE). Diketone thin films showed high contrast emission when smeared, and rapid recovery of the pre-smeared...

A new design concept in the development of vertical takeoff and landing aircraft with high forward flight speed capability is that of the X-Wing. The X-Wing is a stiff, bearingless helicopter rotor system which can be stopped in flight and the blades used as two forward-swept wings and two aft-swept wings. Because of the unusual configuration in the fixed-wing mode, there is a high potential fo...

One the most cited papers in astronomy is Ken Freeman's 1970 paper on exponential disks in galaxies. In this contribution I review what has been done in this area since then and what we can infer about systematic properties of disks in galaxies from surface photometry, HI synthesis observations and measurements of stellar kinematics. Most disks have radial truncations at 3.6 ± 0.6 radial scalel...

Current spirometers on the market often have retail prices of over $1,000. As a result of this high cost, many physicians practicing in developing countries lack the resources to purchase spirometry equipment. The development of a low-cost, reliable spirometer would allow these physicians to make more quantitative assessments of their patients' pulmonary health. A standardized coaching program ...

A new class of luminescent cyclometalated iridium(III) polypyridine fluorous complexes has been designed; the fluorous pendant not only plays an important role in the photophysical and biological properties of the complexes, but also allows the facile isolation of biomolecules labeled with these complexes with fluorous solid-phase extraction (FSPE).