Results 141 to 150 of about 1,628,958 (286)

Bio‐Inspired Gradient Coatings Enhance the Leading Edge Erosion Resistance of Wind Blades

Advanced Science, EarlyView.
Rain‐induced erosion of the wind turbine blade leading edge poses a critical challenge to maintenance and operation. Here, we propose a bio‐inspired approach for erosion protection utilising a platelet‐reinforced polyurethane coating with a graded through‐thickness architecture.
Natalia Sofia Guevara‐Sotelo, Julie Teuwen, Kunal Masania   +2 more
wiley   +1 more source

Ultrasonic pulse velocity (upv) in concrete under compression:a study on the effect of orientation of measurement [PDF]

, 2004
This research project describes the preliminary findings on the orientation of measurements; by determining the ultrasonic pulse velocity in the concrete under compressive stresses.
Chia, F.J
core  

Detection of Degraded Formulated BaTiO3 Induced by Oxygen Vacancy Migration Using Ultrasonic Attenuation

Advanced Science, EarlyView.
Oxygen vacancy migration is a key degradation mechanism for the majority of MLCCs. There are limitations with spatially identifying regions of a capacitor that have degraded due to oxygen vacancy migration. This work showcases ultrasonic attenuation as a non‐electrical and nondestructive technique of identifying oxygen vacancy degraded regions of an ...
Haley N. Jones, Clive A. Randall, Andrea P. Argüelles, Susan Trolier‐McKinstry   +3 more
wiley   +1 more source

Programmable Paracrine‐Mimetic Microneedle System for Temporal Regulation of Cardiac Repair

Advanced Science, EarlyView.
Temporal signaling is encoded into a programmable paracrine‐mimetic microneedle patch via tris(2,2'‐bipyridyl)dichlororuthenium(II) hexahydrate/sodium persulfate‐tuned hydrogel microparticles that deliver TGF‐β, IGF‐1, and VEGF over phase‐matched 7‐, 14‐, and 28‐day windows.
Yichen Dai, Pengchong Du, Zhaoyang Wang, Surilige, Rangga Fokta, Renjian Tan, Xiqing Zhao, Shuoyi Zhang, Yuecheng Wang, Yixin Zhang, Ziliang Fu, Rui Gong, Cheng Jiang, Yisheng He, Qiguang Wang, Renke Li, Khoon Lim, Junnan Tang, Xiaolin Cui   +18 more
wiley   +1 more source

Pengaruh Jumlah dan Letak Tulangan Pada Arah Transversal Transducer Terhadap Pengukuran Cepat Rambat Gelombang Menggunakan UPV (Ultrasonic Pulse Velocity)

, 2020
Pemeriksaan mutu balok pada bangunan yang sudah terbangun dapat dilakukan dengan metode non destructive test menggunakan Ultrasonic Pulse Velocity (UPV).
Nainggolan, Christin Remayanti, Firdausy, Ananda Insan, Salsabila, Saniyyah Mislu   +2 more
core  

Damage‐Free Passivation of Ambipolar OECTs with Fluoropolymer Film for Enhanced Performance and Stability Toward Reliable Biosignal Processing

Advanced Science, EarlyView.
A damage‐free iCVD fluoropolymer passivation strategy is introduced for ambipolar vertical OECTs. Vapor‐phase infiltration and thermal annealing induce nanoscale phase separation in the OMIEC channel, enhancing overall device performance. A single‐channel bipolar event‐driven spiking encoder is also demonstrated for electrocardiogram signal encoding ...
Junyeong Yang, Bohyun Lee, Hanna Lee, Mingyu Kim, Changsoon Choi, Jung Ah Lim, Youson Kim, Sung Gap Im   +7 more
wiley   +1 more source

Monolayer MoS2 With Ultrahigh Piezoelectricity: From ALD Dose Control to Device Performance

Advanced Science, EarlyView.
This study demonstrates that controlling precursor dosages in atomic layer deposition (ALD) serves to regulate ultrathin oxide quality, which in turn determines sulfurization behavior and MoS2 monolayer continuity. The resulting continuous, low‐defect monolayers enable improved piezoelectric performance and support a flexible slippage sensor, linking ...
Yun Li, Ming Rui Joel Tan, Subhasis Das, Yafei Du, Wenjie Lai, Jiamin Amanda Ong, Yongli He, Yiming Zou, Anatoli Kurkin, Peiwen Huang, Jiajun Liu, Xingyu Chen, Alfred Iing Yoong Tok, Soo Jay Phee, Lioz Etgar, Shlomo Magdassi, Pooi See Lee   +16 more
wiley   +1 more source

Service: IGEO Ultrasonic pulse velocity (UPV)

The method is based on the propagation of a high frequency sound wave (20 kHz - 500 kHz) through the stone material. The waves are introduced into the surface by a transducer coupled to the surface with a gel and received by a similar transducer coupled ...
Álvarez de Buergo, Mónica
core  

Effect of Compressive Stress on Ultrasonic Pulse Velocity [PDF]

International Journal of Engineering Research and, 2020
openaire   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng, Tse‐Fu Huang, Takeshi Yamaguchi, Jia‐Wern Chen, Hsing‐Yu Kuo, Ying‐Rang Zhuang, Hung Wei Shiu, Seongmin Im, Yang Zhao, Takuo Tanaka, Ho‐Hsiu Chou, Yu‐Jung Lu   +11 more
wiley   +1 more source