Results 51 to 60 of about 545,717 (377)

Smart sensing metasurface with self-defined functions in dual polarizations

Nanophotonics, 2020
For the intelligence of metamaterials, the -sensing mechanism and programmable reaction units are two important components for self-recognition and -determination. However, their realization still face great challenges.
Ma Qian, Hong Qiao Ru, Gao Xin Xin, Jing Hong Bo, Liu Che, Bai Guo Dong, Cheng Qiang, Cui Tie Jun   +7 more
doaj   +1 more source

A Low-Profile and Wide-Angle Scanning Planar Ultrawideband Modular Antenna With Ultra-Thin Loading Window

IEEE Access, 2022
Ultrawideband phased antenna array has been widely used in communications, radars and detection. However, the high profile and poor wide-angle scanning characteristics have always been the critical limitation for many available ultrawideband antenna ...
Xin Quan, Zhenxin Cao, Huaimin Zhou, Shengchi Zhu   +3 more
doaj   +1 more source

Long range forces induced by neutrinos at finite temperature [PDF]

, 1997
We revisit and extend previous work on neutrino mediated long range forces in a backround at finite temperature. For Dirac neutrinos, we correct existing results.
F. Ferrer, Fischbach, Grifols, Horowitz, Hsu, J.A. Grifols, Kiers, M. Nowakowski   +7 more
core   +3 more sources

Microwave and Millimeter Wave Power Beaming

IEEE Journal of Microwaves, 2021
Power beaming is the efficient point-to-point transfer of electrical energy across free space by a directive electromagnetic beam. This paper clarifies the basic principles of power beaming in simple terms, and proposes a benchmarking methodology for ...
C. Rodenbeck, Paul Jaffe, Bernd H. Strassner II, P. Hausgen, J. McSpadden, H. Kazemi, N. Shinohara, Brian B. Tierney, Christopher B. DePuma, Amanda P. Self   +9 more
semanticscholar   +1 more source

Prolonged Corrected QT Interval as an Early Electrocardiographic Marker of Cyclophosphamide‐Induced Cardiotoxicity in Pediatric Hematology and Oncology Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cyclophosphamide (CY) is associated with potentially fatal cardiotoxicity, yet no electrocardiographic indices have been established for early detection of CY‐induced cardiomyopathy. This study aimed to determine whether corrected QT interval (QTc) prolongation can predict early onset of CY‐related cardiac dysfunction in pediatric ...
Junpei Kawamura, Kentaro Ueno, Takuro Nishikawa, Yoshihiro Takahashi, Koji Nakae, Yasuhiro Okamoto   +5 more
wiley   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source

Space-time-coding digital metasurfaces

Nature Communications, 2018
Current digital coding metasurfaces are only space-encoded. Here, the authors propose space-time modulated digital coding metasurfaces to obtain simultaneous manipulations of electromagnetic waves and present harmonic beam steering, beam shaping, and ...
Lei Zhang, Xiao Qing Chen, Shuo Liu, Qian Zhang, Jie Zhao, Jun Yan Dai, Guo Dong Bai, Xiang Wan, Qiang Cheng, Giuseppe Castaldi, Vincenzo Galdi, Tie Jun Cui   +11 more
doaj   +1 more source

The Relation between the Radial Temperature Profile in the Chromosphere and the Solar Spectrum at Centimeter, Millimeter, Sub-millimeter, and Infrared Wavelengths

, 2014
Solar observations from millimeter to ultraviolet wavelengths show that there is a temperature minimum between photosphere and chromosphere. Analysis based on semi-empirical models locate this point at about 500 km over the photosphere.
A. Vourlidas, E.H. Avrett, E.H. Avrett, H. Uitenbroek, J.E. Vernazza, J.E. Vernazza, J.M. Fontenla, J.M. Fontenla, J.M. Fontenla, K. Shibasaki, M. Loukitcheva, P.A. Golovinskii, R. Liseau, R.L. Kurucz, S. Patsourakos, T.R. Ayres, V. Luz De la, V. Luz De la, V. Luz De la   +18 more
core   +1 more source

Millimeter-scale flexible robots with programmable three-dimensional magnetization and motions

Science Robotics, 2019
New types of flexible microrobots are enabled by patterning discrete 3D magnetization. Flexible magnetic small-scale robots use patterned magnetization to achieve fast transformation into complex three-dimensional (3D) shapes and thereby achieve ...
Tianqi Xu, Jiachen Zhang, M. Salehizadeh, Onaizah Onaizah, E. Diller   +4 more
semanticscholar   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source