Results 211 to 220 of about 1,020,372 (262)

Design and optimization of a Free-Space Optical (FSO) communication system for reliable outdoor connectivity in hospital departments in Malta. [PDF]

Open Res Eur
Sharma A, Garg L, Xuereb PA, Atieh A.
europepmc   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Robust Free-Space Optical Communication Utilizing Polarization for the Advancement of Quantum Communication. [PDF]

Entropy (Basel)
Savino N, Leamer J, Saripalli R, Zhang W, Bondar D, Glasser R.   +5 more
europepmc   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Endoscopic ultrasound-guided hepaticojejunostomy for complete biliary anastomotic stricture: the echo-free space technique for scope insertion in surgically altered anatomy. [PDF]

Endoscopy
Kono M, Omoto S, Takenaka M, Furuta A, Ogata S, Inoue T, Ono W.   +6 more
europepmc   +1 more source

Bidirectional wavelength-division-multiplexing fibre-free-space optical communications using polarisation multiplexing technique and tunable optical vestigial sideband filter. [PDF]

Commun Eng
Lin HM, Wang CP, Lu HH, Hayle ST, Huang XH, Hsu WW, Chung YC, Bai YY, Okram K, Lu JM.   +9 more
europepmc   +1 more source

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Free space propagation without free space

SPIE Proceedings, 2013
We present a novel, fast and easy measurement technique to measure the beam propagation factor M 2 of laser beams using a spatial light modulator (SLM). Two different measurement procedures are outlined, that are both based on digitally simulating the free space propagation of the beam.
Christian Schulze, Daniel Flamm, Michael Duparré, Andrew Forbes   +3 more
openaire   +1 more source