A series of remarkable multifunctional 9,10-distyrylanthracene derivatives (DSA(n), n = 7-12) was synthesized. All derivatives possess typical aggregation-induced emission (AIE) property. Some of the derivatives exhibit multifunctional properties, including AIE, mechanofluorochromism, vapochromism, thermochromism, and mesomorphism, which are rarely found to exist simultaneously in a single comp...

The Fuel Quality Standards Act 2000, which received Royal Assent on 21 December 2000, provides the framework for a national fuel quality standards regime. This legislation has been developed in response to an urgent need to address the quality of fuel currently available in Australia. New vehicle emission standards, harmonising Australian standards with international vehicle emission standards,...

Two-photon absorption (TPA) cross sections of four representative series of octupolar molecules are theoretically investigated. The general structure--TPA-property relationship is described by using the effective four-state valence-bond three-charge-transfer model. As the charge-transfer character of the ground electronic state increases due to the strong donors or acceptors, (i) the transition...

We numerically investigate the conical emission (CE) from ultrashort laser filaments, both considering and disregarding the higher-order Kerr effect (HOKE). While the consideration of HOKE has almost no influence on the predicted CE from collimated beams, differences arise for tightly focused beams. This difference is attributed to the different relative contributions of the nonlinear focus and...

Based on the model proposed by Hilgenfeldt [Nature (London) 398, 401 (1999)], we present here a comprehensive theory of thermal radiation in single-bubble sonoluminescence (SBSL). We first invoke the generalized Kirchhoff's law to obtain the thermal emissivity from the absorption cross section of a multilayered sphere (MLS). A sonoluminescing bubble, whose internal structure is determined from ...

Imaging the dopamine D 3 receptor (D 3 R) in humans in vivo has been hampered by the lack of suitable tools. The D 3 R is pharmacologically similar to the dopamine D 2 receptor (D 2 R), and is located in the same brain areas as the D 2 R, albeit at significantly lower density. The signal obtained from a positron emission tomography (PET) study is proportional to the target density (B avail) and...

We control the linear polarization of emission from the coherently emitting K^{+} and K^{-} valleys (valley coherence) in monolayer WS_{2} with an out-of-plane magnetic field of up to 25 T. The magnetic-field-induced valley Zeeman splitting causes a rotation of the emission polarization with respect to the excitation by up to 35° and reduces the polarization degree by up to 16%. We explain both...

Approved: __________________________________ Thesis Supervisor __________________________________ Title and Department __________________________________ Date 1 EVALUATION OF ATTENUATION AND SCATTER CORRECTION REQUIREMENTS IN SMALL ANIMAL PET AND SPECT IMAGING