Results 111 to 120 of about 1,899 (227)

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

System Design, Modeling and Control of Self-Balancing Human Transportation Vehicles

open access: yes, 2014
本論文旨在發展兩輪與獨輪自平衡載人運輸車之系統設計、建模與控制技術之研究,以及使用陀螺儀、傾斜儀、電位計、馬達驅動器、數位信號處理器(DSP)等現有低價元件,建構兩種低成本且具人性化的運輸車輛。在完成車體系統設計後,牛頓運動學被用以建立包含車輪移動與地面的摩擦阻力之非線性與線性化數學模型。藉由解耦技術的運用,將運輸電動車模型分成兩個子系統:類倒單擺平衡控制子系統與轉向控制子系統,並以徑向網路(RBFNN)方法學習摩擦力以補償車輪與移動地面之間的摩擦阻力,繼而提出古典控制方法 ...
林水春, Lin, Shui-Chun
core  

Binder Engineering Suppresses Jahn–Teller‐Driven Mn Dissolution and Enables High‐Loading MnO2 Cathodes for Aqueous Zn‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Zn2+‐coordinated poly(vinylidene fluoride) binder is shown to suppress Jahn–Teller‐driven Mn dissolution while improving dispersion, wettability, and structural integrity in thick MnO2 cathodes. This simple binder‐engineering strategy enables high‐loading aqueous Zn‐ion batteries with enhanced areal capacity, cycling stability, and practical promise ...
Insung Jang, Geun Yoo, Geon−Hyoung An
wiley   +1 more source

Interplay Between Phase Evolution, Fe Migration, and Oxygen Redox in O3‐Type NaxFeyMn1−yO2 Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Why do Na‐ion battery cathodes, that are compositionally closely related, follow different structural paths during battery operation? This work shows how Fe content controls when iron atoms migrate from their original sites. Early migration locks the layers and blocks key phase transitions, whereas delayed migration permits fuller structural ...
Morten Johansen   +4 more
wiley   +1 more source

One-dimensional computational circulatory models: a scoping review. [PDF]

open access: yesEinstein (Sao Paulo)
Nóbrega GACL   +3 more
europepmc   +1 more source

Swelling‐Induced Stress‐Assisted Transfer of Nanodiamond Arrays With a PVA Carrier Tape for Conformal Bio‐Integrated Sensing and Labelling

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a swelling‐induced, stress‐assisted water‐soluble PVA tape strategy to transfer‐print nanodiamond quantum‐sensor arrays onto soft, curved biological interfaces. The room‐temperature, water‐triggered process achieves >98% fidelity and residue‐free integration, enabling conformal quantum sensing on contact lenses, neural probes, and ...
Luyao Zhang   +9 more
wiley   +1 more source

Numerical study of diffusive fish farm system under time noise. [PDF]

open access: yesSci Rep
Yasin MW   +8 more
europepmc   +1 more source

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