The tuning from the PIT peak amplitude. eThrough the study on the slow where R will be the powerful radius of two group R is continual due to the fixed light effect of this metamaterial, it was found that the DSSRs, and delays of this metamaterial parameters of DSSRs. e f and c are efficient dielectric constants of STO along with the light speed is usually tuned independently.space, respectively.f the frequency selectionwith the temperature increasing, Moreover, In simulation, the decreases function of the double in cost-free ef f so and the double slow light is also lead to the by controlling the PIT transparency windowthe frequencies of PIT peak and group delays bothrealizedblue shift. As a result, this style temperature from the STO layer.can not multi-functional controllablePIT transparency windows along with the The only recognize the amplitude tuning of your metamaterial realizes the slow light impact, but in addition realize the collection of the resonance frequency of the dual PIT amplitude manage and frequency windows andof PIT transparency windows and gives a transparency choice the slow light impact. new path for future PIT 4. Conclusions slow light tuning devices. manage and In conclusion, we achieved the modulation of double PIT impact by integrating monolayer graphene strips and STO film into PIT metamaterials. The simulation results show that the two PIT peaks can recognize the on-to-off modulation by independently shifting the Fermi amount of strip 1 and strip 2. The coupling effect in the PIT metamaterial has been studied working with the three-harmonic oscillator model, along with the theoretical evaluation shows that the recombination impact with the conductive graphene will result in the changing of dark mode damping, resulting within the tuning of the PIT peak amplitude. By means of the study from the slow light impact of this metamaterial, it was identified that two group delays of this metamaterial is often tuned independently. Furthermore, the frequency selection function on the double PIT transparency window and the double slow light can also be realized by controlling the temperature with the STO layer. The multi-functional controllable metamaterial realizes theNanomaterials 2021, 11,11 ofamplitude manage and frequency collection of PIT transparency windows and supplies a brand new path for future PIT handle and slow light tuning devices.Author Contributions: Conceptualization, T.W. and Y.G. (Yachen Gao); software, T.W. and Y.G. (Yang Gao); formal evaluation, T.W. and G.W.; information curation, T.W. and Y.J.; writing–original draft preparation, T.W.; writing–review and editing, T.W. and Y.G. (Yachen Gao); funding acquisition, Y.G. (Yachen Gao); supervision, Y.S., C.C. and J.H. All authors have read and agreed to the published version with the manuscript. Funding: This work was supported by the All-natural Science Mouse site Foundation of Nitrocefin custom synthesis Heilongjiang Province (F2018027), East University of Heilongjiang Scientific Analysis Fund (HDFHX210110, 210111, HDFKYTD202105) and All-natural Science Foundation of Heilongjiang Province (LH2021A019). Information Availability Statement: All content and data have already been displayed inside the manuscript. Conflicts of Interest: The authors declare no conflict of Interest.
applied sciencesArticleMicro Activities Recognition in Uncontrolled EnvironmentsAli Abbas 1,two, , Michael Haslgr ler two , Abdul Mannan Dogar three and Alois Ferscha 1,1 2Institute for Pervasive Computing, Johannes Kepler University, 4040 Linz, Austria; [email protected] Pro2Future GmbH, 4040 Linz, Austria; michael.haslgruebler@pro2.