South China University of Technology

About: South China University of Technology is a education organization based out in Guangzhou, China. It is known for research contribution in the topics: Catalysis & Adsorption. The organization has 62343 authors who have published 69468 publications receiving 1251592 citations. The organization is also known as: SCUT & Huánán Lǐgōng Dàxué.

The Effects of Personal Values on Travel Motivation and Behavioral Intention

Abstract: Culture has been widely proposed by marketing theorists as one of the underlying determinants of consumer behavior. Empirical inquiries in the field of tourism remain scarce, particularly in the understanding of its behavioral influences. The study reported in this article aims to fill the gap by investigating the effect of cultural values on travel motivation and behavioral intention. The analysis of survey data from outbound Chinese tourists reveals that both internal and external values exert a significantly positive effect on travel motivation. Behavioral intention is affected only by internal values. The novelty dimension of travel motivation directly affects behavioral intention. The findings are examined in the context of the rising significance and uniqueness of Chinese outbound tourism. Pragmatic and theoretical implications are discussed.

Silole‐Containing Polymers: Chemistry and Optoelectronic Properties

Abstract: In this review, the synthesis and optoelectronic properties of various π-conjugated-, σ-conjugated-, pendanted-, and hyperbranched or dendritic silole-containing polymers (SCPs) are described So far, substituted silole, dibenzosilole, dithienosilole, and bis-silicon-bridged stilbene have been incorporated into SCPs The tunable bandgaps from 40-155 eV, variable fluorescent colors from UV to blue, green, and red (RGB) light, fluorescent chemo-sensors for 2,4,6-trinitrotoluene (TNT)-type explosives, aggregation-induced emission, efficient electroluminescence emissions for RGB lights, phosphorescent hosts with high triplet energy level, efficient solar cells, stable field-effect transistors with high hole mobility in air, and attenuation of strong laser power, are the important features of SCPs

Evaluation of Toxicity and Biodegradability of Cholinium Amino Acids Ionic Liquids

Abstract: Cholinium amino acid ionic liquids ([Ch][AA] ILs), which are wholly composed of renewable biomaterials, have recently been demonstrated to have very promising properties for applications in organic synthesis and biomass pretreatment. In this work, the toxicity of these ILs toward enzymes and bacteria was assessed, and the effect of the anion on these properties is discussed. The inhibitory potentials of this type of ILs to acetylcholinesterase were weaker approximately an order of magnitude than the traditional IL 1-butyl-3-methylimidazolium tetrafluoroborate. Additionally, the [Ch][AA] ILs displayed low toxicity toward the bacteria tested. Furthermore, the biodegradability of the [Ch][AA] ILs was evaluated via the closed bottle and CO2 headspace tests using wastewater microorganisms. All the ILs were classified as ‘readily biodegradable’ based on their high levels of mineralization (62-87%). The presence of extra carboxyl or amide groups on the amino acid side chain rendered the ILs significantly more susceptible to microbial breakdown. In addition, for most of the [Ch][AA] ILs, low toxicity correlated with good biodegradability. The low toxicity and high biodegradability of these novel [Ch][AA] make them promising candidates for use as environmentally friendly solvents in large-scale applications.

Caching UAV Assisted Secure Transmission in Hyper-Dense Networks Based on Interference Alignment

Abstract: Unmanned aerial vehicles (UAVs) can help small-cell base stations (SBSs) offload traffic via wireless backhaul to improve coverage and increase rate. However, the capacity of backhaul is limited. In this paper, UAV assisted secure transmission for scalable videos in hyper-dense networks via caching is studied. In the proposed scheme, UAVs can act as SBSs to provide videos to mobile users in some small cells. To reduce the pressure of wireless backhaul, UAVs and SBSs are both equipped with caches to store videos at off-peak time. To facilitate UAVs, a single antenna is equipped at each UAV and thus, only the precoding matrices of SBSs should be cooperatively designed to manage interference by exploiting the principle of interference alignment. On the other hand, the SBSs replaced by UAVs will be idle. Thus, in order to guarantee secure transmission, the idle SBSs can be further exploited to generate jamming signal to disrupt eavesdropping. The jamming signal is zero-forced at the legitimate users through the precoding of the idle SBSs, without affecting the legitimate transmission. The feasibility conditions of the proposed scheme are derived, and the secrecy performance is analyzed. Finally, simulation results are presented to verify the effectiveness of the proposed scheme.