DEVELOPMENT OF FLEXIBLE BIOMEMS DEVICES FOR DRUG DELIVERY AND NEURAL INTERFACING

Ph.DDOCTOR OF PHILOSOPH

Dense vertical SU-8 microneedles drawn from a heated mold with precisely controlled volume

10.1088/0960-1317/25/2/025013Journal of Micromechanics and Microengineering25

Simultaneously Enhanced Thermal Conductivity and Breakdown Performance of Micro/Nano-BN Co-Doped Epoxy Composites

Micro/nano- BN co-doped epoxy composites were prepared and their thermal conductivity, breakdown strength at power frequency and voltage endurance time under high frequency bipolar square wave voltage were investigated. The thermal conductivity and breakdown performance were enhanced simultaneously in the composite with a loading concentration of 20 wt% BN at a micro/nano proportion of 95/5. The breakdown strength of 132 kV/mm at power frequency, the thermal conductivity of 0.81 W·m−1·K−1 and voltage endurance time of 166 s were obtained in the composites, which were approximately 28%, 286% and 349% higher than that of pristine epoxy resin. It is proposed that thermal conductive pathways are mainly constructed by micro-BN, leading to improved thermal conductivity and voltage endurance time. A model was introduced to illustrate the enhancement of the breakdown strength. The epoxy composites with high thermal conductivity and excellent breakdown performance could be feasible for insulating materials in high-frequency devices

Examining a Sequential Mediation Model of Chinese University Students’ Well-Being: A Career Construction Perspective

Despite career construction theory attends to individual subjective career and provides a useful lens to study well-being, extant research has yielded limited insights into the mechanisms through which career construction variables influence individual well-being. To address this important gap, the present study examined a mediation model that links indicators of career adaptivity (big-five personality and approach/avoidance traits) to psychological well-being (psychological flourishing and life satisfaction) through career adaptability and in sequent meaning of life (presence of life meaning and search for life meaning) among a sample of Chinese university students (N = 165). The results of a two-wave survey study showed that career adaptability and presence of life meaning mediated the effects of openness to experience, consciousness, approach trait, and avoidance trait on individual well-being in sequence. The results also showed that approach trait’s effect on presence of meaning was partially mediated by career adaptability; career adaptability’s effect on psychological flourishing was partially mediated by presence of meaning. These findings advance understanding of antecedents to individual well-being from a career construction perspective, and carry implications for career education and counseling practices

Career adaptability, calling and the professional competence of social work students in China: A career construction perspective

Based on career construction theory, the current research examined individual and contextual predictors for the professional competence of Chinese undergraduates majoring in social work (N = 270). Results showed that career concern and career curiosity predicted social work students' professional competence, with these relations mediated by the calling in social work. It was also found that the positive effect of calling on professional competence was stronger among students who perceived a lower level of career-oriented learning environment. The corresponding moderated mediation model was supported such that the indirect effects of career concern and career curiosity on professional competence were stronger among students who perceived a lower level of career-oriented learning environment. These findings carry implications for research on career construction theory, as well as career education and career counseling practices

Development of stretchable membrane based nanofilters using patterned arrays of vertically grown carbon nanotubes

10.1039/c3nr02742bNanoscale5188488-849