Stiffened Panels are important strength members in ship and offshore structures. A new method based on counterpropagation neural networks (CPN) is proposed in this paper to predict the ultimate compressive strength of...Stiffened Panels are important strength members in ship and offshore structures. A new method based on counterpropagation neural networks (CPN) is proposed in this paper to predict the ultimate compressive strength of stiffened panels. Compared with two-parametric polynomial, this method can take more parameters into account and make more use of experimental data. Numerical study is carried out to verify the validation of this method. The new method may find wide application in practical design.展开更多
With the rapid development of the Internet of Things and big data,integrated optical switches are gaining prominence for applications in on-chip optical computing,optical memories,and optical communications.Here,we pr...With the rapid development of the Internet of Things and big data,integrated optical switches are gaining prominence for applications in on-chip optical computing,optical memories,and optical communications.Here,we propose a novel approach for on-chip optical switches by utilizing the nonlinear optical Kerr effect induced spontaneous symmetry breaking(SSB),which leads to two distinct states of counterpropagating light in ring resonators.This technique is based on our first experimental observation of on-chip symmetry breaking in a high-Q(9.4×10~6)silicon nitride resonator with a measured SSB threshold power of approximately 3.9 mW.We further explore the influence of varying pump powers and frequency detunings on the performance of SSB-induced optical switches.Our work provides insights into the development of new types of photonic data processing devices and provides an innovative approach for the future implementation of on-chip optical memories.展开更多
文摘Stiffened Panels are important strength members in ship and offshore structures. A new method based on counterpropagation neural networks (CPN) is proposed in this paper to predict the ultimate compressive strength of stiffened panels. Compared with two-parametric polynomial, this method can take more parameters into account and make more use of experimental data. Numerical study is carried out to verify the validation of this method. The new method may find wide application in practical design.
基金Max-Planck-GesellschaftH2020 European Research Council(756966)The Chinese University of Hong Kong,Shenzhen(UDF01003527)。
文摘With the rapid development of the Internet of Things and big data,integrated optical switches are gaining prominence for applications in on-chip optical computing,optical memories,and optical communications.Here,we propose a novel approach for on-chip optical switches by utilizing the nonlinear optical Kerr effect induced spontaneous symmetry breaking(SSB),which leads to two distinct states of counterpropagating light in ring resonators.This technique is based on our first experimental observation of on-chip symmetry breaking in a high-Q(9.4×10~6)silicon nitride resonator with a measured SSB threshold power of approximately 3.9 mW.We further explore the influence of varying pump powers and frequency detunings on the performance of SSB-induced optical switches.Our work provides insights into the development of new types of photonic data processing devices and provides an innovative approach for the future implementation of on-chip optical memories.
