Results 191 to 200 of about 216,422 (329)

High‐Performance Wearable Triboelectric Nanogenerators Based on Polyethyleneimine‐Doped Cellulose Acetate for Self‐Powered Dynamic Signature Sensing and Verification

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A high‐performance wearable triboelectric nanogenerator (TENG) based on polyethyleneimine ‐doped cellulose acetate is demonstrated for dynamic signature authentication. The developed TENG with enhanced interfacial polarization and increased surface charge density exhibits excellent mechanical durability, environmental stability, and long‐term ...
Yoon‐Seo Choi, Han‐Bi Kang, Chae‐Eun Kim, Tae‐Jun Ha   +3 more
wiley   +1 more source

Drop Hammer Impact Ignition Experiment and Effect of Additives on Energy Release Characteristics of PTFE-Based Reactive Materials. [PDF]

Polymers (Basel)
Yuan J, Gu J, Zhai Z, Wang J, Han P, Linghu J, Liu Y.   +6 more
europepmc   +1 more source

A Flexible Poling‐Free Piezoelectric Energy Harvester Based on Gradient Ti‐Doped BiFeO3 Films

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A self‐aligned polarization is realized in compositional gradient Ti‐doped BiFeO3 films via the formation of defect dipoles and strain gradient. The self‐poling behavior is robust to resist high electric field and elevated temperature. The fabricated poling‐free piezoelectric energy harvester delivers output comparable to the poled ones.
Wentao Yang, Panpan Lv, Guiyun Gao, Shuzhi Zhang, Hang Zhan, Cuncheng Li, Luchao Ren, Jin Qian, Mingwei Zhang   +8 more
wiley   +1 more source

From Images to Specimens: The Impact of Tactile, Three-Dimensional Learning in Dental Anatomy. [PDF]

Dent J (Basel)
Kristensen AT, Thune NH, Hammer HL, Khan Q, Utheim TP, Kristoffersen CSM, Ziesler CEØ, Sehic A.   +7 more
europepmc   +1 more source

Policy Networks and Policy Entrepreneurship in the EU: Explaining Structural Policy Change in Pharmaceutical Innovation Incentives and Health Technology Assessment

European Policy Analysis, EarlyView.
ABSTRACT Policy process research has excelled in explaining structural policy change within national settings, but extensions and applications to the EU level have long proven challenging for scholars. Given that the EU is currently experiencing its longest period of Treaty stability since the 1980s—having evolved into a sui generis political system ...
Vassilis Karokis‐Mavrikos
wiley   +1 more source

An ambient acoustic ice-fracturing dataset taken in shallow freshwater. [PDF]

Sci Data
Case J, Barnard A, Brown D.
europepmc   +1 more source

Impact hammer test of ITER blanket remote handling system

Impact hammer test of ITER blanket remote handling system
An impact hammer test of the full-scale mock-up of the ITER blanket remote handling system (BRHS) wascarried out to validate the results of the seismic analysis of the BRHS which were performed using a finiteelement (FE) model. As the FE analysis of the BRHS predicted a vertical mode ∼8 Hz, which coincideswith a major natural frequency of the vacuum ...
openaire  

Data obtained as a result of work on the project UMO-2021/43/D/ST8/00786 dated 2022-09-01 - vibration signals measured during impact hammer tests performed on steel plates

Beata Zima
openalex   +1 more source

The EU's Strategy for Sustainability: A Landmark Turn With the European Green Deal?

European Policy Analysis, EarlyView.
ABSTRACT While the European Green Deal (EGD) has been widely recognized as a milestone in the EU's sustainability strategy, scholars disagree on the nature of the policy change it represents. Critics highlight its limited social and environmental ambitions, despite its portrayal as a “man on the moon” moment.
Ekaterina Domorenok, Franco Gatti
wiley   +1 more source

Ocular VEMP Using Bone Conduction Stimuli at the Forehead - A Pilot Study Comparing B250, Minishaker and Tendon Hammer with Vibrometry Validation. [PDF]

Med Devices (Auckl)
Håkansson BEV, Fredén Jansson KJ, Verrecchia L, Tawfique Z, Froehlich L, Dlugaiczyk J, Rahne T, Eeg-Olofsson M, Håkansson E, Reinfeldt S.   +9 more
europepmc   +1 more source