User behaviors toward mobile video adoption in Taiwan: A qualitative study

This study was designed to examine users' usage behaviors toward mobile video adoption in Taiwan. A modified UTAUT (Unified Theory of Acceptance and Use of Technology) model was designed to be the theory basis to develop questionnaires and open-ended questions. Data were gathered from six participants from iOS and Android users, two experts, and one focus group with five members. The study was conducted from February to April, 2011. The findings in this study supported those in the literature review: Effort Expectancy and Perceived Playfulness factors had positive influence to users' usage behaviors. Facilitating Conditions and Performance expectancy also had positive effect to users' usage behaviors toward mobile video app adoption. Network quality issue was the concern and should be added in the model. Moreover, several implications and suggestions for mobile video app adoption were discussed in the study. --mobile video,Unified Theory of Acceptance and Use of Technology model (UTAUT),mobile video adoption,Taiwan

CFD Analysis of Heat Transfer Performance in a Car Radiator with Nanofluids as Coolants

Nanofluids are the new developed thermal fluids with enhanced thermophysical properties which can improve heat transfer performance of various applications. By introducing nanoparticles with high thermal conductivity in the car radiator coolant can enhance the effective thermal conductivity of coolant which improves the performance of cooling system. Alumina, silica and copper oxide nanoparticles with ethylene glycol-water mixture (60:40) have been used in 3-dimentional car radiator simulations to study fluid flow patterns and heat transfer performance. Heat transfer performance for ethylene glycol-water mixture based nanofluids at different nanoparticle concentrations has been studied. Heat transfer coefficients are determined by numerical simulations with varying coolant velocities. It is found that overall heat transfer performance is improved using nanofluids with high effective thermal conductivity. Results display significant increase in heat transfer performance of coolant in car radiator with an increase in the particle loading

Macroscopic quantum coherence in antiferromagnetic molecular magnets

The macroscopic quantum coherence in a biaxial antiferromagnetic molecular magnet in the presence of magnetic field acting parallel to its hard anisotropy axis is studied within the two-sublattice model. On the basis of instanton technique in the spin-coherent-state path-integral representation, both the rigorous Wentzel-Kramers-Brillouin exponent and preexponential factor for the ground-state tunnel splitting are obtained. We find that the quantum fluctuations around the classical paths can not only induce a new quantum phase previously reported by Chiolero and Loss (Phys. Rev. Lett. 80, 169 (1998)), but also have great influnence on the intensity of the ground-state tunnel splitting. Those features clearly have no analogue in the ferromagnetic molecular magnets. We suggest that they may be the universal behaviors in all antiferromagnetic molecular magnets. The analytical results are complemented by exact diagonalization calculation.Comment: 6 pages, 1 figur

THE EFFECTIVENESS OF A HORTICULTURE THERAPY CLASS ON PERCEIVED EMOTIONS FOR COLLEGE NURSING STUDENTS: A PRELIMINARY STUDY

poster abstractObjective: Horticultural therapy (HT) is a dynamic, guided therapeutic process that involves healthcare providers teaching patients to work with plants and natural materials. Through engaging in horticultural activities, patients achieve specific goals such as improved physical strength, memory, cognitive abilities, task initiation, language skills, and socialization. The aim of the study was to evaluate the efficacy of a horticultural therapy (HT) class for college nursing students who perceive high levels of stress in their academic and clinical nursing studies. Method: The study was conducted at a health science university in an urban city of northern Taiwan. After explaining the procedure to and receiving consent from participants, a total of 116 college, nursing students, aged 20-39 years, mean age 26.90 (4.72), all females were recruited into the study. One group pretest and posttest design and convenient sampling were adopted. Participants received a pretest one week prior to the three-week HT class. The three-week HT class was conducted once per week with two hours for each section. Learning was evaluated with a posttest one week after the end of the HT class. Personal characteristics and outcome data was collected by a constructed questionnaire including five parts: the demographic section, the attitude towards HT, the knowledge of HT, the perceived emotional status, and the Chinese State-Trait Anxiety Inventory (C-STAI). Results: After the three-week HT class, student-perceived emotional management and status significantly improved. While students perceived greater HT knowledge, there was no significant difference in the HT knowledge pre and post-test scores. While a decrease in anxiety was found, it failed to reach a 0.05 level of significance. It showed relationships between pretest emotional status and previous experience with the decreased level of anxiety in the results of the multiple regression analysis. Conclusion: Engaging students in experiencing HT during an academic class could improve college nursing students' emotional status. Further refinement of the HT class and research design are suggested, such as adding a control group and involving more therapeutic activities into the class

Music can remediate affect depending on personality

The music preferences of individuals high in Emotional Stability (ES) differed from music preferences of those low in ES. Negative affect, successfully generated by stressful tasks, returned to baseline levels for both groups after the intervention of listening to preferred music

A ℘-order R-L high-pass filter modeled by local fractional derivative

Abstract As an important electronic device, filter is applied to all kinds of electronic products. In this paper, a new ℘ -order R-L High-pass filter (HPF) modeled by the local fractional derivative (LFD) is proposed for the first time. With the help of the local fractional Laplace transform (LFLT), we obtain the non-differentiable(ND) transfer function, and present the expressions of ND amplitude-frequency characteristic (AFC) and ND phase-frequency characteristics (PFC). The corresponding parameters and properties of the ℘ -order R-L HPF are also studied. What's interesting is that the ℘ -order R-L HPF becomesthe ordinary one in the exceptional case at ℘ = 1. The obtained results in this paper reveal the sufficiency of the local fractional derivative for analyzing the circuit systems in fractal space