Results 101 to 110 of about 290,330 (295)
Over 95% Optical Reflectance From Structurally Modulated All‐Biopolymer Multilayers
Advanced Materials, EarlyView.A new dense–porous design turns ordinary polysaccharides into highly reflective photonic multilayers. Alternating dense pectin and porous cellulose nanofiber layers create strong refractive‐index contrast without inorganic or synthetic polymers, enabling nearly perfect visible reflection, high near‐infrared reflection, broadband metallic‐like colors ...
Takaaki Kasuga +9 more
wiley +1 more source
High-precision Estimation of Roll and Pitch of Aircrafts
, 2019 Positioning plays a vital role in aircraft navigation. Pitch and roll estimation are two important aspects of aircraft positioning. In our research, we focused on a low-cost pitch/roll estimation platform, which includes a low-computation processor and a
Shenoy, Dinesh
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Design and construction of a simple blade pitch measurement system for small wind turbines [PDF]
, 2009 For small wind turbines to be reliable they must have in place good mechanisms to protect themselves against very high winds or sudden removal of load. One common protection method in small wind turbines is that of blade feathering.
Whale, J.
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Monolithically 3D‐Printed Spectral‐Spatial Meta‐Authenticators
Advanced Materials, EarlyView.A single height map printed in a low‐index resin by two‐photon lithography encodes multiple visible wavelengths in one metasurface without any polarization optics. A fabrication‐aware optimization folds the printable height levels into the design, so the device is printed as optimized.
Cherry Park +3 more
wiley +1 more source
Modelling and extraction of fundamental frequency in speech signals [PDF]
, 2014 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.One of the most important parameters of speech is the fundamental frequency of vibration of voiced sounds.
Pawi, Alipah
core +3 more sources
Advanced Materials, EarlyView.A polymer blend of n‐type OMIEC P(gNDI‐gT2) with insulating PMMA yields mechanically stabilized, anti‐ambipolar organic electrochemical transistors (OECTs) with tunable ionic‐electronic transport. This blending allows low‐power, fast‐spiking heterogeneous Hodgkin–Huxley neurons, enabling biomimetic frequency deconvolution and reservoir computing, which
Zachary Laswick +12 more
wiley +1 more source
CT Lilun yu yingyong yanjiuObjective: To study the effect of different tube pitches on neck CTA radiation dose and image quality under automatic tube current modulation technology. Data and methods: A total of 120 patients were selected for neck CTA examination in Tinglin Hospital
Chensi WANG +7 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.A dual‐modulus silicone release film creates distributed stress concentrations at high‐/low‐modulus boundaries, triggering multi‐site crack initiation and rapid interfacial detachment. The architecture lowers the peak separation force by 97.6%, shortens detachment time, and enables stable continuous projection stereolithography at 720 mm h−1, offering ...
Xiaogang Li +3 more
wiley +1 more source
A novel pitch evaluation of one-dimensional gratings based on a cross-correlation filter [PDF]
, 2014 If one-dimensional (1D), p–period and arbitrarily structured grating position-related topographical signals coexist with noise, it is difficult to evaluate the pitch practically using the centre-of-gravity (CG) method.
Chen, Xiaomei, Koenders, Ludger
core +1 more source
Frontiers in PsychologyIntroductionWhen it comes to the non-verbal communication of emotions, it is apparent that the human voice is one of the main ways of expressing emotion and is increasingly important in psychotherapeutic dialog.
Ghazaleh Bailey +2 more
doaj +1 more source