Results 51 to 60 of about 47,499 (264)

Mode-sum regularization of the scalar self-force: Formulation in terms of a tetrad decomposition of the singular field [PDF]

, 2006
We examine the motion in Schwarzschild spacetime of a point particle endowed with a scalar charge. The particle produces a retarded scalar field which interacts with the particle and influences its motion via the action of a self-force.
C. W. Misner, E. Poisson, Eric Poisson, G. B. Arfken, J. L. Synge, M. Abramowitz, Roland Haas   +6 more
core   +2 more sources

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

Advanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee, Kang Hyuk Cho, Seojin Yun, Siyoung Lee, Woongji Kim, Yunsik Kim, Wonkyu Moon, Yoonyoung Chung, Kilwon Cho   +8 more
wiley   +1 more source

Direct Detection of Products from the Pyrolysis of 2-Phenethyl Phenyl Ether [PDF]

, 2011
The pyrolysis of 2-phenethyl phenyl ether (PPE, C_6H_5C_2H_4OC_6H_5) in a hyperthermal nozzle (300-1350 °C) was studied to determine the importance of concerted and homolytic unimolecular decomposition pathways. Short residence times (
Carstensen, Hans-Heinrich, Daily, John W., Dayton, David C., Dean, Anthony M., Jarvis, Mark W., Nimlos, Mark R., Robichaud, David J., Sharma, Shantanu   +7 more
core   +2 more sources

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

Advanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan, Lei Wu, Dong Zhang, Linxiao Wu, Graca Ferreira Vaz Pinto Mendes, Wanqiao J. Tu, Heping Ma, Toby J. Proctor, Colin R. Butler, Thomas Kjærgaard, Mark W. Lowdell, Martin A. Birchall, Robert E. Hynds, Richard Hewitt, Wenhui Song   +14 more
wiley   +1 more source

Harmonics Elimination of Reduced Switch Multilevel Inverter Using Henry Gas Solubility Optimization Algorithm [PDF]

Iranian Journal of Electrical and Electronic Engineering
This study introduces a pioneering method to enhance the efficiency and effectiveness of three-phase five-level reduced switch cascaded H-bridge multilevel inverters (CHB MLI) by employing the Henry Gas Solubility Optimization (HGSO) algorithm. Targeting
Murni Nabila Mohd Zawawi, Zainuddin Mat Isa, Baharuddin Ismail, Mohd Hafiz Arshad, Ernie Che Mid, Md Hairul Nizam Talib, Muhammad Fitra Zambak   +6 more
doaj  

Real-time control of Selective Harmonic Elimination in a Reduced Switch Multilevel Inverter with unequal DC sources

Ain Shams Engineering Journal
This study proposes a two-step method for generating switching angles in renewable energy systems that use multi-level inverters (MLIs) to reduce low-order harmonics.
Yasin Bektaş
doaj   +1 more source

Creating massive entanglement of Bose condensed atoms [PDF]

, 2001
We propose a direct, coherent coupling scheme that can create massively entangled states of Bose-Einstein condensed atoms. Our idea is based on an effective interaction between two atoms from coherent Raman processes through a (two atom) molecular ...
A. Rauschenbeutel, A. Sørensen, B. T. H. Varcoe, B. Yurke, C. A. Sackett, D. Bouwmeester, D. J. Wineland, G. K. Brennan, H. M. J. M. Boesten, H. Pu, J. L. Bohn, J. Weiner, K. Mølmer, Kristian Helmerson, L. P. Ratliff, L.-M. Duan, Li You, M. D. Lukin, M. Kitagawa, M. Kozuma, O. Elgaroy, R. Wynar, T. Busch   +22 more
core   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Research of Ambipolar Selected Harmonic Elimination PWM Techniques Application for Diesel Locomotive Traction Converter

机车电传动, 2015
Mathematic model of ambipolar selected harmonic elimination PWM was explained briefly. The nonlinear surmounting equations of eliminating the specified harmonic were provided, and the new resolving methods for these equations were discussed, and the key ...
CHEN Jianfeng, LI Guofeng, ZHAO Dou, LI Yan, SHANG Linyue   +4 more
doaj  

Input-parallel output-series Si-SiC hybrid inverter with fractional harmonic elimination

Frontiers in Energy Research
This paper proposes an input-parallel output-series (IPOS) Si-SiC hybrid inverter with dual-frequency harmonic elimination modulation strategy. The proposed topology composed of two power conversion cells and a three-phase five-column medium-frequency ...
Qinhai Yu, Chuang Liu, Ruifeng Li, Zhongcheng Pei, Dongbo Guo, Tingrui Mao, Xinming Shao   +6 more
doaj   +1 more source