Voice-mediated text messaging service: a possiblity to enhance current text messaging service

As a Human-Computer Interaction (HCI) design practice, this paper first drew on several scenarios for Short-text Messaging Services (SMS) on a mobile telephone technology. And a new prototype for SMS was given to participants. While the participants were using the prototype, the initial scenarios were extended by the participants’ recognition of the new prototype, resulting in new scenarios for the future system development. This lightweight design practice was intended to educate HCI practitioners, in order to show the practicality of the HCI design process – task-artefact cycle framework

Riemann-Liouville Fractional Cosine Functions

In this paper, a new notion, named Riemann-Liouville fractional cosine function is presented. It is proved that a Riemann-Liouville $\alpha$-order fractional cosine function is equivalent to Riemann-Liouville $\alpha$-order fractional resolvents introduced in [Z.D. Mei, J.G. Peng, Y. Zhang, Math. Nachr. 288, No. 7, 784-797 (2015)]