Phase-sensitive measurements were made on Sr2RuO4 to establish unambiguously the odd-parity pairing in this material. The critical current of Au(0.5)In(0.5)-Sr2RuO4 superconducting quantum interference devices prepared single crystals was found be a maximum for with junctions same side crystal and minimum opposite sides, limit zero magnetic flux; these findings indicate that phase order parameter changes by pi under inversion. This result verifies symmetry formation spin-triplet Cooper pairs Sr2RuO4.

A theoretical model for grating structured triboelectric nanogenerators is provided, which outlines its structural and material optimization strategies.

In order to improve the operation performance and environmental adaptability of manipulator, it is essential control position force manipulator simultaneously. This paper proposed a hybrid method auto-dynamic bit based on realize flexible grasping in unknown environment. The constraint conditions types force/bit are analyzed firstly, dynamic model when contacting with environment established. Then, an improved controller conventional fuzzy-PID strategy introduced by combining estimation...

Conventional model predictive control (MPC) for electrical drives relies on the accuracy of system model, thus, its performance will deteriorate due to disturbances such as parameter mismatch and current distortion. To improve robustness MPC, a compensated scheme with simplified repetitive (SRC) is proposed in this paper. Since prediction MPC corrected assistance compensation, much more reasonable output provided promote performance. An open-loop structure (RC) two resonant units applied SRC...

In this study, we prepared bionic selenium-baicalein nanoparticles (ACM-SSe-BE) for the targeted treatment of nonsmall cell lung cancer. Due to coating A549 membrane, system has homologous targeting capabilities, allowing preparation target tumor cells. The borate ester bond between selenium (SSe) and baicalein (BE) is pH-sensitive can break under acidic conditions in microenvironment achieve release BE at site. Moreover, SSe further enhances antitumor effect by increasing production ROS...

This study aims to establish an equivalent parallel capacitance model for a copper/polydimethylsiloxane (Cu/PDMS) capacitive flexible pressure sensor and modulate its relative permittivity optimize sensing performance. The Cu/PDMS composite material is ideal dielectric layer sensors due high constant tunable elasticity. By adjusting the different mixing ratios of PDMS copper particles in micro size, components structure properties can be modified, thereby affecting electrical mechanical...

In this paper, we prepared doxorubicin-loaded folic acid-functionalized pH-sensitive photothermal therapy (PTT) traceable hollow mesoporous silica nanoparticles (DOX-HPCF) as a drug carrier for liver cancer treatment. According to TEM characterization, (HMSN) are monodispersed spherical particles with structure. vitro release experiments showed that HPCF exhibited release. Cell uptake was successfully absorbed by SMMC-7721 cells. addition, DOX-HPCF significantly inhibited the proliferation...

In this paper, we investigate the great potential of combination machine learning technology and wireless communications. Currently, many researchers have proposed various optimization algorithms on resource allocation for distributed antenna systems (DASs). However, existing methods are mostly hard to implement because their high computational complexity. a new system model is considered scenario DAS, which more practical with its low We utilize k-nearest neighbor (k-NN) algorithm based...

Composites with both lightweight and high strength have tremendous demands in aerospace, rail transit, military, etc., especially for ones strong high-strain-rate dynamic impact resistance. Among them, bioinspired helicoidal composites is one type of them. Currently, due to the limitation fabrication, only 0, 45, 90° been investigated enhance Other angle not completely explored yet. Here, we fabricated a series composite specimens 0°–90° angles by Fused Deposition Modeling (FDM), tested...

Conventional PI regular is a simple control method that widely applied in permanent magnet synchronous motor (PMSM) systems. However, most cases, it cannot meet the requirements of high performance control. In order to improve system robustness and response, this paper adopts sliding mode variable structure strategy design double-loop controller (speed loop current loop). Integral compensation disturbance observer are also introduced prevent possible steady-state errors intrinsic chattering....

Abstract This paper considers the stability and optimality problems associated with stochastic high‐order nonlinear systems time‐varying powers. research extends previous studies on plant constant In this paper, we firstly construct a state‐feedback controller to ensure that equilibrium at origin of closed‐loop system is globally asymptotically stable (GAS) in probability. Then redesign new optimal infinite gain margin solve inverse stabilization (IOS) problem. Specifically, not only respect...

Abstract Vibrations, which widely exist throughout the world, could be a nearly endless and locally obtained green energy source. It has been long-standing challenge to efficiently utilize dispersed vibration energy, especially within high-frequency range, since amplitudes of vibrations in local parts objects are relatively weak. Here, for first time, we propose soft disordered hyperuniform elastic metamaterial (DHEM), achieving remarkable concentration broad frequency bands by maximum...

Synchronization of chaotic systems with unknown parameters, or namely auto-synchronization, has aroused a lot interest in the past few years. In this paper, we are interested solving one critical cases Lorenz system. Based on researches, it was concluded that auto-synchronization system inachievable if parameters resided all its three dynamical equations while only first state measurable. However, as demonstrated problem can be resolved by an adaptive observer following simple design rules....

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> This paper carries out a further cryptanalysis of two Lorenz-based masking secure communication systems, which have been recently attacked by high-pass filter. As demonstrated with our simulations, filter attack works well only when the covered information signal is monotonic. However, an adaptive observer, it still possible to coarsely obtain and correctly identify system user-defined parameters...

This letter investigates the effect of mutual coupling on operation a dual-band MIMO antenna system. A rectangular codirectional split ring resonator-type (RCSRR) defected ground structure (DGS) is designed to isolate antennas and reduce influence radiation characteristics. compact DGS consists two rings resonator locates between patches, dimension each controls corresponding resonant frequency. Two multiantenna prototypes are fabricated experimentally evaluated. Measurement results confirm...

Based on complex network load flow considering the UHV components and corona loss, a theoretical method for loss assessment prediction of AC power system. is provided. Firstly, line losses under different operation conditions are theoretically analysed compared between system typical 500kV systems. Theoretical analysis shows that ratio 1000kV decreases about 10%~50% transmission line. The calculation put forward based combined with measured data from wide area measurement (WAMS) gateway watt...

Model predictive control (MPC) is widely used in a cascaded structure for electrical drives, which, the MPC applied as inner-loop current regulating while another controller such proportional–integral (PI) outer-loop speed regulating. However, benefits of multiple targets optimizing simultaneously are not sufficiently utilized. Moreover, characteristics these drives rely on due to strategy, and they parameter-sensitive. A durational proposed this paper optimize currents permanent-magnet...

We propose a robust scheme to achieve the synchronization of chaotic systems with modeling mismatches and parametric variations. The proposed algorithm combines high-order sliding mode feedback control. is used estimate error between master slave as well its time derivatives, while control drive track master. stability design proved theoretically, performance verified by some numerical simulations. Compared existing algorithms, shows faster convergence stronger robustness system uncertainties.

This study presents vibration control using actively tunable absorbers (ATVA) to suppress of a thin plate. The ATVA is made sandwich hollow structure embedded with electrorheological fluid (ERF). ERF considered be one the most important smart fluids and it suitable in due its controllable rheological property. ERF’s apparent viscosity can controlled response electric field change reversible 10 microseconds. Therefore, physical properties ERF-embedded structure, such as stiffness damping...

Abstract This article considers the output‐feedback control problem for a class of stochastic high‐order nonlinear systems with time‐varying powers. In design process, by choosing proper upper and lower bounds powers, state observer is constructed to estimate unmeasured states. With help adding power integrator technique, backstepping homogeneous domination method, an scheme designed. The closed‐loop can be proved globally asymptotically stable in probability. Finally, efficiency presented...