Results 31 to 40 of about 99,796 (273)

Generalized intelligent states of the su(N) algebra

, 2004
Schr\" odinger-Robertson uncertainty relation is minimized for the quadrature components of Weyl generators of the algebra $su(N)$. This is done by determining explicit Fock-Bargamann representation of the $su(N)$ coherent states and the differential ...
Brif, Brif, Brif, Daoud, Dodonov, Dodonov, El Kinani, El Kinani, El Kinani, Fu, Gradshteyn, Klauder, M. Daoud, Malkin, Malkin, Malkin, Malkin, Robertson, Stoler, Stoler, Stoler, Trifonov, Trifonov, Trifonov, Wodkiewicz, Yuen   +25 more
core   +1 more source

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

Adaptive quadrature by expansion for layer potential evaluation in two dimensions

, 2018
When solving partial differential equations using boundary integral equation methods, accurate evaluation of singular and nearly singular integrals in layer potentials is crucial.
Klinteberg, Ludvig af, Tornberg, Anna-Karin   +1 more
core   +1 more source

A Superhydrophobic 3D Cell Culture System Reveals the Mechanobiological Role of Cancer‐Associated Fibroblasts in Prostate Cancer Metastasis

Advanced Healthcare Materials, EarlyView.
A superhydrophobic 3D cell culture platform enables rapid and consistent formation of heterotypic tumor–stroma clusters, and reveals how physiological shear conditions influence metastatic signaling. Mechanical stimulation of cancer‐associated fibroblasts promotes sustained cytokine secretion and survival‐promoting pathways, showing how multicellular ...
Alexandria T. Carter, Abigail R. Fabiano, Ehsan Aalaei, Jason Deng, Dakota E. Rostant, Michael R. King   +5 more
wiley   +1 more source

FWM-based wavelength conversion of 40 Gbaud PSK signals in a silicon germanium waveguide

, 2013
We demonstrate four wave mixing (FWM) based wavelength conversion of 40 Gbaud differential phase shift keyed (DPSK) and quadrature phase shift keyed (QPSK) signals in a 2.5 cm long silicon germanium waveguide.
Bogris, Adonis, Brun, Mickael, Ettabib, Mohamed A., Hammani, Kamal, Jones, Liam, Kapsalis, Alexandros, Labeye, Pierre, Nicoletti, Sergio, Parmigiani, Francesca, Petropoulos, Periklis, Syvridis, Dimitris   +10 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Static and free vibration analysis of carbon nano wires based on Timoshenko beam theory using differential quadrature method

Latin American Journal of Solids and Structures
Static and free vibration analysis of carbon nano wires with rectangular cross section based on Timoshenko beam theory is studied in this research. Differential quadrature method (DQM) is employed to solve the governing equations.
Maziar Janghorban
doaj   +1 more source

Euler-Maclaurin type optimal formulas for numerical integration in Sobolev space

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2020
In the present paper the problem of construction of optimal quadrature formulas in the sense of Sard in the space  L2(m)(0,1) is considered. Here the quadrature sum consists of values of the integrand at nodes and values of the first and the third ...
Hayotov, A.R., Nuraliev, F.A., Parovik, R.I., Shadimetov, Kh.M.   +3 more
doaj   +1 more source

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures

Advanced Materials Technologies, EarlyView.
Here, it is shown that focused ion beam induced deposition (FIBID) using helium and neon ions enables advanced high‐resolution 3D nanoprinting achieving precise multimaterial architectures and engineered internal voids. Thus, FIBID with finely focused noble gas ion species is presented as a unique platform for designing functional nanomaterials for ...
Frances Isabel Allen
wiley   +1 more source

Single DD-DXCCII based quadrature oscillator with simultaneous current and voltage outputs [PDF]

Electronics, 2015
In this paper, a versatile quadrature oscillator using single Differential Difference Second Generation Dual-X Current Conveyor (DD-DXCCII) as an active element, two grounded capacitors and three grounded resistors is presented.
B. Chaturvedi, J. Mohan
doaj   +1 more source