Results 51 to 60 of about 490 (132)
We clarify how Gibbs‐energy‐minimization models for aqueous‐amine CO2 capture fail when conservation constraints and concentration conventions are inconsistent. Exact standard‐state conversions and Reaktoro case studies show that P(CO2)‐loading fits can mask non‐unique parameters and wrong speciation, motivating complete water‐inclusive formulations ...
William R. Smith +2 more
wiley +1 more source
Aqueous solutions of HF and HCl show contrasting dissociation in water, yet exhibit nearly identical excess‐proton spectra. This puzzling observation is reconciled by a complementary Eigen–Zundel interpretation. ABSTRACT Aqueous solutions of HF and HCl behave very differently at intermediate concentrations: HCl dissociates completely, whereas HF only ...
Louis Lehmann +6 more
wiley +1 more source
Control of BLDC Motor Drive with Single Hall Sensor Considering Angle Compensation
The traditional brushless DC motor uses three position sensors to realise six-step reversing control of the motor. The application of three position sensors increases the cost, whereas the sensorless control method represented by the back electromotive ...
Hong Sen, Luo Mingyang, Wang Xueqing
doaj +1 more source
Bi2Se3 nanosheets grow in situ on porous COFs to construct a multifunctional sulfur host for lithium‐sulfur batteries. Synergistic physical confinement, chemical anchoring, and electrocatalysis restrain polysulfide shuttling and accelerate redox reactions.
Jin Guo +7 more
wiley +1 more source
Molten Salt Electrolyte for Enhanced Low‐Temperature Sodium Liquid Metal Batteries
This study introduces the application of a low‐temperature, high‐conductivity, solvent‐free Na/KFSI molten salt electrolyte in sodium liquid metal batteries. Additionally, this electrolyte facilitates the formation of a stable and NaF‐rich cathode electrolyte interphase (CEI) on the alloy cathode, enabling stable cycling at an unprecedentedly low ...
Jingya Dong +10 more
wiley +1 more source
Full-Speed Range Encoderless Control for Salient-Pole PMSM with a Novel Full-Order SMO
For salient-pole permanent magnet synchronous motor (PMSM), the amplitude of extended back electromotive force (EEMF) is determined by rotor speed, stator current and its derivative value.
Yuanlin Wang +3 more
doaj +1 more source
Electrochemical experiments reveal what happens, whereas first principles calculations explain why. Emerging computational electrochemistry is bridging these perspectives, enabling quantitative understanding of electrode/electrolyte interfaces and enabling the rational design of next‐generation energy storage materials.
Kenji Oqmhula, Ryo Maezono, Kenta Hongo
wiley +1 more source
A novel primary consequent-pole tubular transverse-flux flux-reversal linear machine (TTFFRLM) is proposed in this paper. The permanent magnets (PMs) of the machine are located on the inner surface of the short teeth of the primary iron cores for ...
Dingfeng Dong +5 more
doaj +1 more source
This work demonstrates a design paradigm of phonon‐driven negative‐thermal‐expansion (NTE) flexible framework that exploits the intrinsic lattice flexibility of NTE frameworks to simultaneously suppress thermal expansion and activate oxide‐ion conduction, offering a promising strategy to mitigate TEC mismatch in solid‐state ionic devices.
Xiaohui Li +10 more
wiley +1 more source
Wireless Power Transfer Performance for Unmanned Aerial Vehicle Charging
A selectively powered hexagonal transmitter array combined with a novel L‐shaped pickup coil is proposed for UAV wireless charging. Finite element simulations show the design achieves higher uncompensated power and greater positional stability than a benchmark coil, offering a promising direction towards scalable, misalignment‐tolerant charging ...
Narmisha Nair Prabakaran +6 more
wiley +1 more source

