Abstract In this study, a three‐step strategy including electrochemical cathode deposition, self‐oxidation, and hydrothermal reaction is applied to prepare the LiMn 2 O 4 nanosheets on carbon cloth (LMOns@CC) as binder‐free in hybrid capacitive deionization (CDI) cell for selectively extracting lithium from salt‐lake brine. The LMOns@CC electrodes are constructed dozens of 2D substrates, resulting uniform array highly ordered with hierarchical nanostructure. charge/discharge process...

Binder-Free Electrodes In article number 2306530, Anjiang Cai, Hongjian Zhou, and co-workers constructed binder-free electrodes by in-situ growth of the LiMn2O4 materials with highly ordered hierarchical nanostructures on a flexible conductive carbon cloth substrate as cathode in hybrid capacitive deionization cell for selectively extracting lithium from salt-lake brine.

Over the last decade, many bio-inspired crawling robots have been proposed by adopting principle of two-anchor or anisotropic friction-based vibrational crawling. However, these are complicated in structure and vulnerable to contamination, which seriously limits their practical application. Therefore, a novel vibro-impact robot driven dielectric elastomer actuator (DEA) is this paper, attempts address limitations existing robots. The novelty lies elimination anchoring mechanisms tilted...

Abstract This work aims to make a comparative analysis of the unbalanced discharging phenomenon for battery packs with series/parallel configurations due temperature differences among cells. A theoretically‐based model is developed pack and constant power processes are simulated by model. At difference, lowering operating increases divergence cell terminal voltages series currents parallel pack. Increasing decreases dischargeable energy pack, whereas it has little effect on that...

With the aim to reduce total structural weight, this paper presents a novel radial multi-layered elastic metamaterial (EM) shaft in which scattering layer is circumferentially discretized into several arc-shaped sections with rotational symmetry. The dispersion relations and frequency-response-functions (FRF) of finite structure are determined numerically first different geometries. To illustrate mechanisms band gaps, eigenmodes were extracted analyzed together FRF. results show that...

Fretting wear is a kind of material damage in contact surfaces caused by microrelative displacement between two bodies. It can change the profile surfaces, resulting loosening fasteners or fatigue cracks. Finite element method an effective to simulate evolution fretting process. In most studies wear, coefficient friction was assumed be constant simplify model and reduce difficulty solving. However, test showed that variable related number cycles. Therefore, this paper introduces as function...

Polydimethylsiloxane (PDMS) is a widely used inexpensive, non-toxic material which has many advantages. But it generally considered that PDMS does not adhere to the other substrates without special treatments due its low surface energy. However, in this paper, first time we found adhered on silicon dioxide substrate form an adhesive layer only by routine cast molding process. The mechanism of adhesion during process was illustrated detail. smooth, thin, transparent, hydrophobic and selective...

In this paper, the low-frequency band gap mechanism of torsional vibration is investigated for a kind light elastic metamaterial (EM) shafts architecture comprised radial double-period element periodically as locally resonant oscillators with low frequency property. The dispersion relations are calculated by method combining transfer matrix and lumped-mass method. theoretical results agree well finite simulations, independent density hard material ring. effects parameters on gaps further...

The V-shaped electro-thermal MEMS actuator model, with the human error factor taken into account, is presented in this paper through cascading ANSYS simulation model and Fuzzy mathematics calculation model. introduces by using BP neural network, which effectively reduces between results experimental to less than 1%. Meanwhile, included, will become more accurate as database of grows.

A strain-type three-component table dynamometer is presented in this paper, which reduces output errors produced by cutting forces imposed on the different milling positions of a workpiece. sensor structure with eight parallel elastic beams proposed, and sensitive regions Wheastone measuring circuits are also designed consideration eliminating influences eccentric forces. To evaluate decoupling performance, both static calibration dynamic test were implemented Static experiment results...

Abstract We propose a new kind of elastic metamaterial (EM) shaft with discretized arc-shaped rubber layers, which shows excellent low-frequency vibration properties. The band gaps the structure were analyzed by employing finite element method. proposed EM exhibits much lower than corresponding structures whole ring. Furthermore, can be modulated tuning arc angle and number rubbers. Additionally, we observed that first complete gap tends to disappear when each section is decreased but...

The intrinsic reason for the dynamic luminescent pattern is due to an<italic>in situ</italic>oxidation on NaYbF₄:Ho³⁺microcrystals.

A microwave (MW)-cavity antenna was designed to manipulate the spin state in diamond. It consists of an Ω and a MW cavity with thickness 0.35 mm Q-value 65. The intensity increased 12 times compared that antenna. size homogeneity area is heterogeneity less than 2.3%. Hence, more structures large-sized diamonds high concentration can be homogeneously excited. As applied spin-based magnetometer, sensitivity 13 times, noise reduced paves way for development highly sensitive sensors.

Abstract Heterostructures are an important class of materials with desirable size, morphology, and functionality because their promising applications in biosensor photonic communication device. However, no such technology synthesizing heterojunctions is as convenient electric welding. Particularly, large lattice‐mismatch has been subjected to a great challenge. Herein, the hybrid heterojunction structures obtained by situ chemical transformation from fluoride oxyfluoride via laser...

A fretting wear model of a rough surface that conforms to the actual situation is established accurately reveal mechanism connection structure. In ABAQUS software, UMESHMOTION subroutine and energy dissipation are used simulate double surfaces. The new model, single smooth compared analyze their differences. addition, influence roughness, material, friction coefficient on surfaces systematically explored through finite element simulation. results show model's reliability has been verified...

Polymer template is widely used in the fabrication of organic thin-film transistor (OTFT) electrodes. However, mechanical/thermal properties polymer are generally poor owing to their low Young's modulus (E) and high coefficient thermal expansion (CTE), resulting formation massive wrinkles cracks on OTFT electrodes, as well electrodes incomplete transfer, which seriously affects Here, a novel dry blending method described SiO2 nanoparticles filled into grooved silicon template, followed by...