Results 41 to 50 of about 860,460 (345)

Weak Gravitational Lensing by Dark Clusters [PDF]

, 2002
We calculate the abundance of dark-matter concentrations that are sufficiently overdense to produce a detectable weak-gravitational-lensing signal. Most of these overdensities are virialized halos containing identifiable X-ray and/or optical clusters ...
Kamionkowski, Marc, Weinberg, Nevin N.
core   +4 more sources

Weak signal extraction in non-stationary channel with weak measurement

Communications Physics, 2023
An emerging challenge of integrated communication and sensing is the extraction of weak sensing signals transmitted through an unknown non-stationary channel. In this work, we propose a weak signal extraction method with weak measurement.
Qi Song, Hongjing Li, Jingzheng Huang, Peng Huang, Xiaorui Tan, Yu Tao, Chunhui Shi, Guihua Zeng   +7 more
doaj   +1 more source

Weak value amplification is suboptimal for estimation and detection [PDF]

, 2014
We show using statistically rigorous arguments that the technique of weak value amplification (WVA) does not perform better than standard statistical techniques for the tasks of single parameter estimation and signal detection. Specifically we prove that
Combes, Joshua, Ferrie, Christopher
core   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source

Signal Processing Method and Evaluation Method for Weak Doppler Signal Detection

Sensors
When the amplitude of the laser Doppler signal is less than that of the noise amplitude, the speed information cannot be identified. In this paper, the recognition of weak Doppler signals is accomplished by superimposing multiple-frame Doppler signals in
Chongbin Xi, Jian Zhou, Xiaoming Nie, Shilong Jin   +3 more
doaj   +1 more source

Weak harmonic signal detection method in chaotic interference based on extended Kalman filter

Digital Communications and Networks, 2019
The traditional methods of weak harmonic signal detection under strong chaotic interference often suffer from high computational complexity and poor performance.
Chengye Lu, Sheng Wu, Chunxiao Jiang, Jinfeng Hu   +3 more
doaj   +1 more source

Complete chiroptical signal detection using weak measurement with intensity-contrast-ratio pointers

APL Photonics, 2023
Chiroptical signals, including optical rotation (OR) and circular dichroism (CD), are widely utilized as potent probes for investigating the structure and properties of chiral molecules.
Yunhan Wang, Shaojie Yang, Qianli Zhang, Yanyu Chen, Xiaolong Hu, Hong Zhang, Zhiyou Zhang   +6 more
doaj   +1 more source

Development Toward a Ground-Based Interferometric Phased Array for Radio Detection of High Energy Neutrinos [PDF]

, 2017
The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a
Avva, J., Bechtol, K., Chesebro, T., Cremonisi, L., Deaconu, C., Gupta, A., Ludwig, A., Messino, W., Miki, C., Nichol, R., Oberla, E., Ransom, M., Romero-Wolf, A., Saltzberg, D., Schlupf, C., Shipp, N., Varner, G., Vieregg, A. G., Wissel, S. A.   +18 more
core   +2 more sources

Psychological Safety Among Interprofessional Pediatric Oncology Teams in Germany: A Nationwide Survey

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn, Anna‐Lena Herbach, Christian Bock, Katharina Fleig, Urs Mücke   +4 more
wiley   +1 more source

Kurtosis-guided Duffing for weak signal detection

EURASIP Journal on Advances in Signal Processing
Detecting weak signals embedded in strong noise remains a critical challenge across numerous engineering fields, including mechanical fault diagnosis, underwater acoustics, and biomedical monitoring. The Duffing oscillator is a well-established nonlinear
Haiyang Lou, Rujiang Hao, Qiang Xue
doaj   +1 more source