Results 181 to 190 of about 1,592,702 (395)

Sensitivity of Room Impulse Responses in Changing Acoustic Environment [PDF]

arXiv
Changes in room acoustics, such as modifications to surface absorption or the insertion of a scattering object, significantly impact measured room impulse responses (RIRs). These changes can affect the performance of systems used in echo cancellation and active acoustics and support tasks such as navigation and object tracking.
arxiv  

Low‐Noise, Unbiased Ferromagnetic‐Resonance‐Driven Thin‐Film Integrated Giant Magnetoimpedance Sensors

Advanced Materials Technologies, EarlyView.
Utilizing a novel (Ni81Fe19/Ti)4/Cu/(Ni81Fe19/Ti)4 thin‐film multilayer with low coercive field, low damping and a superior GMI ratio, a compact, low‐noise unbiased FMR‐driven integrated GMI sensor with a superior magnetic noise performance of ≈100 pT/√Hz is first demonstrated, owing to reduced phase noise from well‐defined aligned magnetic domains and
Bin Luo, Xianfeng Liang, Huaihao Chen, Cai Müller, Paul Raschdorf, Phillip Durdaut, Michael Höft, Jeffrey McCord, Nian‐Xiang Sun   +8 more
wiley   +1 more source

How to Manufacture Photonic Metamaterials

Advanced Materials Technologies, EarlyView.
Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley   +1 more source

Effect of Acoustic Reflector's Surface Density on Sound Absorption Characteristics and Stage Acoustics [PDF]

, 2012
Young‐Sun Kim, Jeong-Ho Jeong, Jin Yong Jeon, Myeong-Seok Kim   +3 more
openalex   +1 more source

Co‐Solvent‐Aided Opto‐Thermophoretic Printing of Gold Nanorod Assemblies

Advanced Optical Materials, EarlyView.
A focused laser beam creates a thermal gradient, driving the gold nanorods and polymer coils toward the heated region of the glass substrate, i.e, the laser spot. After the adsorption of the polymer on the gold surface, the nanorods start to assemble onto the surface in a ring‐shaped pattern that grows radially until the beam is turned off.
Ana Jiménez Amaya, Claire Goldmann, Maike C. Haidasch, Cyrille Hamon, Eric H. Hill   +4 more
wiley   +1 more source

Studies into the detection of buried objects (particularly optical fibres) in saturated sediment. Part 2: design and commissioning of test tank

, 2007
This report is the second in a series of five, designed to investigate the detection oftargets buried in saturated sediment, primarily through acoustical or acoustics-relatedmethods.
Evans, R.C.P., Leighton, T.G.
core  

Nd(III)‐Based Temperature‐Independent Manometer and Pressure‐Independent Thermometer with Slow Relaxation of Magnetization

Advanced Optical Materials, EarlyView.
The Neodymium(III) macrocyclic complex [NdL(CF3SO3)3] serves as a non‐contact, bifunctional sensor for temperature and pressure, displaying field‐induced Single Molecule Magnet (SMM) behavior. At 3 GPa, triflate rotations halt, triggering a disorder‐order phase transition from centrosymmetric phase α to noncentrosymmetric high‐pressure phase β.
Dawid Marcinkowski, Dominika Prętka, Przemysław Woźny, Jedrzej Kobylarczyk, Agnieszka Siwiak, Dawid Pakulski, Violetta Patroniak, Kinga Roszak, Andrzej Katrusiak, Radovan Herchel, Robert Podgajny, Szymon Sobczak, Natalia Majewska, Sebastian Mahlik, Marcin Runowski, Adam Gorczyński   +15 more
wiley   +1 more source

Superradiance in acoustic black hole [PDF]

arXiv
Rotating superradiance in cylinders has recently been observed experimentally using acoustic waves to shed light on the understanding of the superradiant phenomenon in black holes. In this paper, for the first time, we study superradiance in acoustic black holes through theoretical analysis and numerical simulation using COMSOL multiphysics.
arxiv  

Acoustics and optics of absorptive crystals: a universal formalism for topological effects [PDF]

, 2013
V. I. Alshits, Vasilii N. Lyubimov
openalex   +1 more source

Optical Properties of Thin Films of Tin Iodide Perovskite Nanostructures

Advanced Optical Materials, EarlyView.
A comprehensive spectroscopic study of thin films of 3D CsSnI3 nanocrystals (NCs) that coexist with residual 2D Ruddlesden‐Popper nanosheets (NSs) has been performed. Polymer encapsulation enables solid‐state stabilization of the tin iodide perovskite nanostructures, while insight into the energetics and dynamics of the NC and NS excitons is provided ...
Andreas Manoli, Paris Papagiorgis, Kushagra Gahlot, Kyriacos Georgiou, Emmanouil Lioudakis, Andreas Othonos, Loredana Protesescu, Grigorios Itskos   +7 more
wiley   +1 more source