Results 81 to 90 of about 50,611 (217)

Changes in a Printed Circuit Board's Absorption Cross Section Due to Proximity to Walls in a Reverberant Environment [PDF]

, 2016
Knowledge of the Absorption Cross Section (ACS) of a Printed Circuit Board (PCB) is essential when defining an enclosure’s shielding effectiveness as it will determine how a PCB affects the internal electromagnetic (EM) field inside the enclosure.
Bale, Simon, Dawson, John, Flintoft, Ian, Marvin, Andrew, Parker, Sarah, Robinson, Martin, Wan, Changyong, Ye, Ming, Zhang, Mengze   +8 more
core   +1 more source

Decoding the Spatiotemporal Complexities of the Permafrost Carbon Feedback With Multimodal Ensemble Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 1, March 2025.
Abstract Complex nonlinear relationships exist between the permafrost thermal state, active layer thickness, and terrestrial carbon cycle dynamics. In Arctic and boreal Alaska, significant uncertainties characterize the spatiotemporal rate and magnitude of permafrost degradation and the permafrost carbon feedback, with increasing recognition of the ...
B. A. Gay, N. J. Pastick, J. D. Watts, A. H. Armstrong, K. R. Miner, C. E. Miller   +5 more
wiley   +1 more source

Efficient Determination of Reverberation Chamber Time Constant [PDF]

arXiv, 2017
Determination of the rate of energy loss in a reverberation chamber is fundamental to many different measurements such as absorption cross-section, antenna efficiency, radiated power, and shielding effectiveness. Determination of the energy decay time-constant in the time domain by linear fitting the power delay profile, rather than using the frequency
arxiv  

Inverse Fourier transform technique of measuring averaged absorption cross section in the reverberation chamber and Monte Carlo study of its uncertainty [PDF]

, 2016
The averaged absorption cross section (ACS) of a lossy object characterises its ability to capture power from diffused electromagnetic waves. The averaged ACS is very important in many EMC research areas such as indoor wireless channel modelling and ...
Dawson, John F, Flintoft, Ian D, Robinson, Martin P, Zhang, Xiaotian   +3 more
core   +1 more source

Emerging Wearable Acoustic Sensing Technologies

Advanced Science, Volume 12, Issue 6, February 10, 2025.
This review summarizes recent advancements in wearable acoustic devices developed through interdisciplinary and bionic approaches. These applications include bio‐acoustic detection, ultrasound energy supply, and ultrasonic diagnosis. It highlights challenges and future directions, aiming to promote their use in the human body and explore integration ...
Tao Liu, Yuchen Mao, Hanjie Dou, Wangyang Zhang, Jiaqian Yang, Pengfan Wu, Dongxiao Li, Xiaojing Mu   +7 more
wiley   +1 more source

Radar Cross Section Measurement within Reverberation Chamber: Stirrer position issues [PDF]

European Conference on Antennas and Propagation, Mar 2020, Copenhagen, Denmark, 2020
This paper presents the evaluation of the Radar Cross Section (RCS) of a metallic object by measurements accomplished within the diffuse-field environment produced by a Reverberation Chamber (RC). The method is based on the extraction of the ballistic wave between the antenna and the target that is mixed with the backscattering response of the RC.
arxiv  

Absorption cross section measurement of stacked PCBs in a reverberation chamber [PDF]

, 2016
The Absorption Cross Section (ACS) of Printed Circuit Boards (PCBs) can be used to help determine how PCBs affect the internal electromagnetic (EM) field in a shielded enclosure and thus the enclosure shielding effectiveness.
Bale, Simon Jonathan, Dawson, John Frederick, Flintoft, Ian David, Marvin, Andy, Parker, Sarah, Robinson, Martin Paul, Wan, Changyong, Ye, Ming, Zhang, Mengze   +8 more
core   +1 more source

External Field‐Assisted Metal–Air Batteries: Mechanisms, Progress, and Prospects

SusMat, Volume 5, Issue 1, February 2025.
External field‐assisted metal–air batteries can break the thermodynamic limitations of electrode reactions and significantly accelerate the slow cathode reaction. This paper reviews the specific principles and research progress of some external field‐assisted metal–air batteries.
Ruien Cao, Limin Liu, Wei Yu, Shujiang Ding   +3 more
wiley   +1 more source

Approximate Analytical Equations for the Stirrer Angular Correlation in a Reverberation Chamber [PDF]

, 2018
IEEE In a reverberation chamber (RC), the angular correlation coefficient of a stirrer is an important parameter. It has been used to evaluate the performance of a stirrer or to estimate the number of independent samples in a measurement. In the previous
Huang, Y, Loh, TH, Wang, M, Xing, L, Xu, Q, Zhao, Y   +5 more
core   +1 more source

In Vivo Monitoring and Magnetically‐Enhanced Delivery of CAR T‐Cells to Solid Tumor

Advanced Functional Materials, Volume 35, Issue 5, January 29, 2025.
Chimericantigen receptor (CAR) T‐cell therapy shows promise for cancer, but struggleswith solid tumors due to poor infiltration. To address this, EGFR‐targeted CART‐cells are loaded with iron oxide nanoparticles, injected intoimmune‐deficient mice with lung cancer and tracked via Magnetic ResonanceImaging (MRI).
Huan Chen, Alice Machado, Dongjie An, Sonia Becharef, Gwennhael Autret, Dmitry Ayollo, Sarah Razafindrakoto, Philippe Nizard, Florent Carn, Yun Luo, Frédéric Pendino, Claire Mangeney, Jelena Kolosnjaj‐Tabi, Emmanuel Donnadieu, Florence Gazeau   +14 more
wiley   +1 more source