A water-based surfactant-free synthesis of three-dimensional porous Pd@Pt core–shell nanoflowers on graphene with substantially enhanced electrocatalytic activity was reported.

A non-fullerene small molecule acceptor MOIT-M was exploited for high-performance ternary OSCs. The PM6:BTP-eC9:MOIT-M (1 : 1.2 0.3, w/w) device achieved 18.5% efficiency, while the control binary PM6:BTP-eC9 obtained a PCE of 17.4%.

Hierarchical architectured MnCO₃ microdumbbells and lamellar structured nanosheets were selectively synthesized by a facile reflux route.

The uniformity of the central region within a magnetic shielding room (MSR) is critical factor affecting accuracy magnetoencephalography (MEG) measurement. High coil design key technology for obtaining required field environment. This paper introduces method high planar based on bat algorithm (BA), which significantly enhances target region. Based method, dual-plane generating uniform fields in x, y, and z directions was designed. Each directional consists primary secondary coil. Bat...

LiFePO4 (LFP) is one of the cathode materials widely used in lithium ion batteries at present, but its electronic conductivity still unsatisfactory, which will affect electrochemical performance. Ga-coated LiFePO4@C (LFP@C) samples were prepared by a hydrothermal method and ultrasonic dispersion technology. Ga has good electrical can rapidly conduct electrons within LFP material under synergistic effect with C coating, thus improving dynamic performance material. The experimental results...

A novel separator of Co-doped MnO 2 with abundant oxygen vacancies exhibits a high reversible capacity 902.0 mA h g −1 at 0.5 C after 200 cycles for Li–S batteries.

Comprehensive Summary Non‐halogenated polymers have great potential in the commercialization of organic solar cells (OSCs) due to their advantages manufacturing process. However, high‐performance donor are limited a small amount building blocks. Herein, we utilize as block 4 H ‐dithieno[3,2‐ e :2',3'‐ g ]isoindole‐4,6(5 )‐dione (DTID) design and synthesize relevant non‐halogenated polymer PBTID for active layers OSCs. exhibits strong absorption wavelength range 400—600 nm with distinctly...

Abstract A sensitive and convenient electrochemical method was developed for the determination of rhodamine B by a silica-pillared zirconium phosphate/nafion composite (SPZP/NAF) modified glassy carbon electrode. The SPZP characterized with scanning electron microscopy X-ray diffraction. Because layer structure large specific surface area SPZP, SPZP/NAF electrode showed high electrocatalytic activity toward oxidation B. Under optimal experimental conditions, exhibited wide linear response to...

A LiFePO4 (LFP)-coated cathode with a LaFeO3 (LFO) layer was successfully fabricated. We prepared LFP@C-LFO-x (x = 0, 1, 2, 3, and 4 wt % LFO) composites using hydrothermal synthesis sol–gel route. The coating could optimize the kinetic properties of fabricated cathode, as well increase ion transport electronic conductivity synthesized composites. As result, it shows that our composite materials exhibit remarkably enhanced electrochemical performance under combined action carbon layer. When...

BTR-SCl:Y6 devices achieved an impressive PCE of 15.8% with a high V oc 0.88 eV.

This article proposes a comparative study of biased flux permanent magnet (BFPM) machines having different stator core segments and armature winding configurations. The topologies the four investigated their operating principles are introduced first. Then, in case same envelope size copper loss, all BFPM designed based on single variable optimization method to obtain higher average torque, along with comparison electromagnetic characteristics such as phase back-electromotive force (back...

In conventional 12/8-pole doubly salient permanent magnet machines (DSPMMs) with outer type flux focusing method, the relatively thicker stator back iron next to magnets results in smaller slot area. This paper proposes a novel structure of DSPMMs square envelope. such structure, thickness is roughly uniform and are inserted from corners envelope slots. addition, tooth tips all teeth kept uniformly distributed on bore while bodies side bended by an angle corresponding tips. Meanwhile, size...

The manuscript reports a new one-pot synthesis of carbon nanoribbons with enhanced lithium storage performances for ion batteries.

A sequential inkjet printing strategy was utilized on a microfluidic paper-based fluorescence (FL) immunodevice for immunoglobulin G (IgG) detection.

Doubly salient permanent magnet (DSPM) machines suffer from a large torque ripple due to unbalanced three phases, nonsinusoidal-phase back electromotive force, cogging torque, etc. To suppress the ripple, this article proposes new type of stator/rotor-pole number combinations. The stator poles is 18, while rotor differs conventional counterpart (i.e., 12) by one. DSPM with different combinations are globally optimized under fixed copper loss and machine envelope. It shows that compared 18/12...

Due to additional armature windings on the secondary, dual-armature linear switched flux permanent magnet machines (DALSFPMMs) exhibit higher force densities than conventional LSFPMMs. Nevertheless, existing DALSFPMMs suffer from larger secondary phase numbers because of prime pole numbers. This article proposes more optional primary/secondary number combinations with fewer for DALSFPMMs. The machine topology is introduced first, followed by analysis numbers, which indicates 8/9 poles...

This article presents a novel doubly fed salient permanent magnet machine (DFDSPMM) with armature windings wound around stator and rotor teeth. Compared the conventional (DSPMM), this locates an extra winding in slots as to fully use its slot space, thus leading increase output torque. The structure operational principle of proposed are analyzed at first. Then, feasible stator/rotor-pole number combinations discussed. Furthermore, electromagnetic characteristics investigated machines...

This paper presents the design of an ultra-wide-angle multispectral narrow-band absorber for reconstructing infrared spectra. The offers several advantages, including polarization sensitivity, robustness against structural wear, wide azimuthal angle coverage, high absorption, and adjustable working wavelength. To accomplish spectrum reconstruction, is employed as a spectral sampling channel, eliminating influence slits or complex optical splitting elements in imaging technology....

Abstract With the rapid modernization of city, power cable has been widely used in process urban construction. In course operation, faults become more and frequent, which a great impact on national economy people’s life. The method digital X-ray imaging can realize nondestructive testing body obtain clear intuitive image. But it lacks advanced processing defect recognition image, not directly detect identify from original Therefore, this paper studies image buffer layer intelligent...

This article compares the doubly salient permanent magnet machine (DSPMM) having 18/13-pole number combination with 18/17-pole biased flux (BFPMM) to verify its improvement in torque characteristics. In such DSPMM, stator/rotor-pole is 18/13 rather than conventional one (i.e., 18/12) achieve balanced three phases, sinusoidal phase linkage and back electromotive force (back EMF), small cogging torque, low ripple. On other hand, an BFPMM similar structure DSPMM analyzed, which has best...