With compelling virtues of a large specific surface area, abundant active sites, and fast interfacial transport, nanomaterials have been demonstrated to be indispensable tools for water remediation applications. Accordingly, micro/nanomotors made by would also benefit from these properties. Though tuning the architecture on demand becomes hot topic in field nanomaterials, there are still limited reports design architectures chemically driven tubular micro/nanomachines. Here, unique composed...

Abstract Dynamic assembly and cooperation represent future frontiers for next generations of advanced micro/nano robots, but the required local interaction communication cannot be directly translated from macroscale robots through minimization because tremendous technological challenges. Here, an ultrafast growth locomotion methodology is presented dandelion‐like microswarms assembled catalytic tubular micromotors. With ultrasound oscillation self‐generated bubbles, such could overcome...

Artificial micro/nanomotors that could perform diverse tasks autonomously at the micro/nanoscale have been emerging as promising tools in many practical applications. Electrochemical synthesis is one of dominating methods to fabricate these micro/nanodevices with geometries and material components. By changing conditions electrochemical deposition, surface morphology, crystal structure, hence resultant performance deposited be tailored. In current work, a feasible fabrication strategy...

A novel strategy for combating bacteria is proposed based on MnO₂@Ag micromotors. Due to synergistic reaction of MnO₂ and Ag, rapid movement was realized an enhanced <italic>E. coli</italic> death achieved by coupling intense motion with Ag⁺ sterilization.

RFID technology research has resolved practical application issues of the power industry such as assets management, working environment control, and vehicle networking. Also it provides technical reserves for convergence ERP CPS. With development location-based services technology, is converging with a variety sensing, communication, information technologies. Indoor positioning applications are under rapid development. Micromanagement useful practice positioning. In this paper, model been...

Abstract The effects of the addition rare earth cerium on impact corrosion and wear resistance CrNiMnMo alloyed lining steel were studied using metallurgical microscopy, scanning electron microscope, x‐ray powder diffraction, a hardness tester, an abrasion tester. properties with compared that without after being heat treated by same processes. results show consisted lath martensite low residual austenite phase quenched tempered. was fine uniform. toughness board improved greatly increased...

A method using 180° hybrid coupler and vector network analyser to measure the radio frequency identification tag antenna impedance is presented. The of a prototype measured by different experimental methods compared with simulation results. comparison results show that proposed has good accuracy it more convenient.

This letter proposes a unified initial preprocessing technique to address phaseless characterization of compact antenna test range (CATR) system within millimeter-wave range. With the aid phase retrieval algorithm, missing information quiet zone (QZ) can be reconstructed by only two amplitude-only measurements. Here, complex consists parts: back propagation measurements in QZ as amplitude and Zernike-Fourier expansion phase. To further validate superiority robustness proposed approach, we...

A novel circularly polarized tag antenna designed for RFID UHF band is proposed. An annular-ring microstrip patch with a pair of inserted slits used to achieve operation. By choosing the proper lengths two short-circuited arc lines and its coupling distance, good complex impedance matching can be obtained. The 10 dB return-loss bandwidth measured 215 MHz (720-935MHz), while 3 axial-ratio 6 (919-925 MHz). Further experiment shows that could provide better reading range when mounted on...

In this paper, a novel experimental solution for the characterization of binary input impedance Ultra High Frequency (UHF) band Radio Identification (RFID) transponder chip is presented. The proposed method easy to setup using common test instruments. tag directly soldered 50-Ω subminiature A (SMA) connector, and then connected vector network analyzer (VNA) RFID emulator through three ports power divider. impedances measurement results with respect frequency on are useful in practical...

Gaussian beam tracing (GBT) is proven to be an effective ray method in analyzing quasi-optical system with multi-reflector mirrors. The paper deals its application millimeter wave (MMW) band combining the source pattern expansion using point matching (PMM) and technique geometrical optics (GO) method. Far-field of TE10 mode expanded into bundles elementary beams (GBs) based on PMM, which get each emergent direction coefficient. Radiation near-field far-field are obtained by introducing...

Artificial micro/nanomotors that could perform diverse tasks autonomously at the micro/nano scale hold great promise in environmental remediation applications. In article number 1802771, Wenjuan Liu, Xiaolong Lu, Jinxing Li, Joseph Wang, and co-workers synthesize highly efficient tubular poly(3,4-ethylenedioxythiophene)/MnO2 micromotors via potentiostatic deposition to obtain unique ramsdellite structures. The active ramsdellite-MnO2 layer enables effective propulsion remarkable organic...

In article number 2003678, Xiaolong Lu, Wenjuan Liu, and co-workers report dandelion-like microswarms assembled from tubular micromotors, which are capable of performing ultrafast growth locomotion. With the ultrasound oscillation self-generated bubbles, such could move at an average speed up to 50 mm s−1 exhibit instant wireless response stimuli.