Results 41 to 50 of about 3,501,692 (262)

Density of optical degrees of freedom : intensity, linear and angular momentum [PDF]

, 2014
For any optical system, optical eigenmodes describe solutions of Maxwells equations that are orthogonal to each other. In their simplest free space form, these modes correspond, for example, to Bessel, Laguerre-Gaussian or Hermite-Gaussian beams. However,
Michael Mazilu, Mazilu, Michael
core   +1 more source

Investigations of Some Physical Properties and Sensing Properties of Fluorine-Doped Alpha-Iron (III) Oxide Thin Films

Proceedings of the International Conference on Applied Innovations in IT
Fluorine-doped α-Fe₂O₃ nanostructure films were deposit by a facile Spray Pyrolysis (SP), The F dopant concentration was varied incrementally at 0%, 2%, and 4% by weight.
Israa Akram Abbas, Oday Ali Chichan, Tahseen H. Mubarak, Shaymaa A. Hussein, Sami Salman Chiad, Nadir Fadhil Habubi, Yassin Hasan Kadhim   +6 more
doaj   +1 more source

The 25th Anniversary of Laser Vision Correction in the United States

Clinical Ophthalmology, 2021
Stephen N Joffe1,2 1History of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA; 2Department of Surgery and Medicine, University of Cincinnati Medical Center, Cincinnati, OH, USACorrespondence: Stephen N JoffeJoffe Foundation, 4400 Drake Road,
Joffe SN
doaj  

Biphasic Clinical Course of Pediatric Cytomegalovirus‐Associated Immune Thrombocytopenia: Early Poor Treatment Response but Favorable Long‐Term Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad, Ohad Atia, Osama Tanous, Dafna Brik Simon, Michal Dvori, Miriam Cohen, Tracie A. Goldberg, Efraim Bilavsky, Joanne Yacobovich, Orna Steinberg‐Shemer   +9 more
wiley   +1 more source

Packet-Layer Forward Error Correction Coding for Fading Mitigation [PDF]

, 2006
In an on/off-keying atmospheric optical communication system, index of refraction turbulence and PAT (pointing, acquisition and tracking) instabilities create strong and very slow fading compared to the usually used high data-rates.
Hennes Henniger, Henniger, Hennes
core   +1 more source

Impact of natural melanin doping on the structural, optical and dielectric characteristics of the PVP/CMC blend

Journal of Taibah University for Science, 2023
Undoped and doped polyvinyl pyrrolidone/ carboxymethyl cellulose (PVP/CMC: 50/50%) blended polymers with melanin were formed. X-ray diffraction analysis confirmed the amorphous nature of all blends.
A. M. El-naggar, Zein K. Heiba, A. M. Kamal, Khalid E. Alzahrani, Omar H. Abd-Elkader, Mohamed Bakr Mohamed   +5 more
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess, Gustaf Glavå, Simon Skau, Hans‐Georg Kuhn, Maria Bäck, Marianne Jarfelt   +5 more
wiley   +1 more source

Optical interconnection networks based on microring resonators [PDF]

, 2012
Optical microring resonators can be integrated on a chip to perform switching operations directly in the optical domain. Thus they become a building block to create switching elements in on-chip optical interconnection networks, which promise to overcome
Cuda, Davide, Giaccone, Paolo, GARRICH ALABARCE, MIQUEL, Garrich, M., Gaudino, Roberto, Bianco, Andrea, Gavilanes Castillo, Guido Alejandro   +6 more
core   +1 more source

Optical–Structural Optimization for Condensation Suppression in Automotive Camera Modules

Sensors
Cameras have become indispensable sensors in intelligent vehicles, with their deployment steadily increasing across modern automobiles. It is critical for camera modules to have reliable and accurate environmental perception, but a major challenge is ...
Kouwen Zhang, Yike Xu, Shenwei Xu, Xiaoyang Lin, Junyu Zhou, Zhaoqing Liu, Yan Li, Haoyun Wei   +7 more
doaj   +1 more source

Impact of MWCNTs on the structural, electrical, and optical characteristics of PVA/PANi blends

Journal of Taibah University for Science, 2023
Polyvinyl alcohol (PVA)/0.25% polyaniline (PANi)/x wt % MWCNTs (x = 0, 0.1, 0.2, 0.5, 0.8, 1) blends were formed. The X-ray diffraction technique was used to investigate the formation of the different blends.
A. M. El-naggar, Alaa Alsaggaf, Zein K. Heiba, A. M. Kamal, A. M. Aldhafiri, Mohamed Bakr Mohamed   +5 more
doaj   +1 more source