Results 41 to 50 of about 42,348 (158)

Electrospinning and Post-Spun Chain Conformations of Synthetic, Hydrophobic Poly(α-amino acid)s. [PDF]

, 2020
Electrospinning and post-spun conformations of hydrophobic poly(α-amino acid)s are described in this study. The poly(α-amino acid)s, poly(Gly), poly(L-Ala), poly(L-Val), and poly(L-Leu) were synthesized via corresponding N-carboxy-a-amino acid anhydrides.
Devarayan, Kesavan, Nakagami, Souta, Ohkawa, Kousaku, Suzuki, Shuichi, Yuki, Ichiro   +4 more
core   +1 more source

Integrated Improved Complete Ensemble Empirical Mode Decomposition and Continuous Wavelet Transform Approach for Enhanced Bearing Fault Diagnosis in Noisy Environments

Engineering Proceedings
Bearings are vital apparatuses in many industrial systems, and their failure can lead to severe damage, costly downtime, and safety risks. Therefore, early detection of bearing faults is critical to prevent catastrophic failures.
Mahesh Kumar Janarthanan, Andrews Athisayam, Murali Karthick Krishna Moorthy, Gowtham Sivakumar, Saravanan Poornalingam   +4 more
doaj   +1 more source

Synchrosqueezing Transform Based on Frequency-Domain Gaussian-Modulated Linear Chirp Model for Seismic Time–Frequency Analysis

Mathematics, 2023
The synchrosqueezing transform (SST) has attracted much attention as a post-processing technique since it was proposed. In recent years, improvements to SST have been made.
Pingping Bing, Wei Liu, Haoqi Zhang, Li Zhu, Guiping Zhu, Jun Zhou, Binsheng He   +6 more
doaj   +1 more source

Optimal first arrival times in L\'evy flights with resetting

, 2015
We consider diffusive motion of a particle performing a random walk with L\'evy distributed jump lengths and subject to resetting mechanism bringing the walker to an initial position at uniformly distributed times.
Gudowska-Nowak, Ewa, Kusmierz, Lukasz
core   +1 more source

Hyaluronan and self-assembling peptides as building blocks to reconstruct the extracellular environment in skin tissue [PDF]

, 2013
Funding for this study was provided by the Portuguese Foundation for Science and Technology (FCT, grant PTDC/EBB-BIO/114523/2009). D. S.
Agren, Aruffo, Behanna, Burdick, Capito, Carvajal, Chow, Clark, Collier, Costa, Cui, Daley, Discher, Gajewiak, Galler, Giancotti, Hersel, Hubbell, Jiang, Jung, Khetan, Kleinman, Lauffenburger, Lin, Lowik, Mahoney, Massia, Mendes, Park, Patterson, Perlin, Picart, Pierschbacher, Ruoslahti, Sakai, Shah, Shen, Shroff, Silva, Smedsrod, Stern, Storrie, Takahashi, Wang, Webber, Webber, Yamada, Yeung, Zha, Zhang, Zhao   +50 more
core   +1 more source

A Multistage Detection Framework Based on TFA and Multiframe Correlation for HFSWR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Maritime surveillance heavily relies on high-frequency surface wave radar (HFSWR) systems. However, clutter and interference make it difficult to accurately detect vessel targets using a single-frame detection method.
Zongtai Li, Gangsheng Li, Ling Zhang, Lanjun Liu, Q. M. Jonathan Wu   +4 more
doaj   +1 more source

A Novel Fault Feature Recognition Method for Time-Varying Signals and Its Application to Planetary Gearbox Fault Diagnosis under Variable Speed Conditions

Sensors, 2019
The existing time-frequency analysis (TFA) methods mainly highlight the time-frequency ridges of the interested components by optimizing the time-frequency plane to facilitate the extraction of the relevant components.
Yong Lv, Bingqi Pan, Cancan Yi, Yubo Ma
doaj   +1 more source

Quantized hydrodynamic model and the dynamic structure factor for a trapped Bose gas

, 1996
We quantize the recent hydrodynamic analysis of Stringari for the low-energy collective modes of a trapped Bose gas at $T=0$. This is based on the time-dependent Gross-Pitaevskii equation, but omits the kinetic energy of the density fluctuations.
A. Griffin, A. Griffin, A. L. Fetter, A. L. Fetter, E. M. Lifshitz, E. P. Gross, F. Dalfovo, F. Dalfovo, G. Baym, J. Javanainen, K. B. Davis, L. P. Pitaevskii, M. Edwards, M. H. Anderson, P. A. Ruprecht, P. Nozières, R. Graham, S. Stringari, T. T. Chou, V. Bagnato, Wen-Chin Wu   +20 more
core   +1 more source

Power of Feedback-Induced Beta Oscillations Reflect Omission of Rewards: Evidence From an EEG Gambling Study

Frontiers in Neuroscience, 2018
The functional role of high beta oscillations (20–35 Hz) during feedback processing has been suggested to reflect unexpected gains. Using a novel gambling task that separates gains and losses across blocks and directly compares reception of monetary ...
Zachary Yaple, Zachary Yaple, Mario Martinez-Saito, Nikita Novikov, Nikita Novikov, Dmitrii Altukhov, Dmitrii Altukhov, Dmitrii Altukhov, Anna Shestakova, Vasily Klucharev   +9 more
doaj   +1 more source

Instanton Approach to Josephson Tunneling between Trapped Condensates

, 2001
An instanton method is proposed to investigate the quantum tunneling between two weakly-linked Bose-Einstein condensates confined in double-well potential traps.
Müller-Kirsten, H. J. W., Zhang, Yunbo
core   +1 more source