Ultrasound microscopy is the only technique that has ability to monitor live-cell morphology over a long period of time without causing any damage cells, but its longer wavelength prevents one from obtaining high-resolution cell images. Here, we propose deep-learning (DL) method for generating acoustic By preparing datasets consisting many pairs and optical-microscope images same cells training them, image comparable optical generated an image. Importantly, most accurate are when three-layer...

We present three-dimensional profilometry based on triangulation in which a hexagonal pattern is projected the object. To obtain an accurate result with one-shot photographic image, Fourier transform method and of excess fraction are adopted. The three grating components used. For compactness new projection scheme introduced. experimental results show that constructed optical system works well for measuring profile mannequin height resolution ~ ± 1 mm.

This paper solves a long-standing problem in resonant ultrasound spectroscopy (RUS) for cubic solids through the use of two-dimensional deep learning (DL). By means inverse methods, conventional RUS can determine all independent elastic constants crystalline solid specimen by comparing measured and calculated free-vibration resonance frequencies. However, to avoid invalid local minima process, good initial guesses must be available. Here, we propose DL scheme remedy this problem, which...

Low-temperature microjoining, such as wire (or ribbon) bonding, tape automated bonding (TAB), and flip chip (FCB), is necessary for electronics packaging. Each type of microjoining takes on various aspects but has common mechanisms regarding friction slip, plastic deformation, heating. In the present paper, solid-state in Au (ball) FCB, Al (WB), ribbon are discussed to systematically understand mechanisms. Ultrasonic vibration enhances slip making it possible rapidly obtain dry...

We acoustically measured the energy level for thermally activated conduction (TAC) in high-resistivity Fe-doped GaN using non-contacting antenna-transmission acoustic-resonance method. The acoustic attenuation takes a maximum at specific temperature, where TAC is accelerated with help of phonon energy. Debye type relaxation thus observed attenuation, and its activation (0.54$\pm$0.04 eV) was determined measurements various frequencies temperatures. This value agrees E3 GaN, indicating that...

The application of superconductivity technology to electric power apparatus is very important for promoting the conservation energy and resources. Generators using superconductors as field windings have many merits compared with conventional generators. A description given basic designs current status R&D work on 70-MW-class superconducting objective this a 200-MW-class generator.

A thinning scheme could be used as a useful method of pre-processing in image processing. Various algorithms have been proposed to produce the skeleton digital binary pattern. However, they undesirable properties that tend cause shrinking or vanishing segments, appearance beard, and warping where segments intersect. In this paper, we propose parallel Hilditch algorithm acquire more stable output. particular, introduce two kinds masks are effective figures characters. Then, evaluate...

Abstract Oxide vapor phase epitaxy (OVPE) has attracted much attention as a highly efficient method for synthesizing high-quality bulk GaN crystals, but the mechanical properties of OVPE have not been clarified. We measured five independent elastic constants by resonant ultrasound spectroscopy. The in-plane Young modulus E 1 and shear C 66 are smaller than those hydride 1.8% 1.3%, respectively. These reductions agree with predictions density functional theory calculations. also calculated...

Abstract Elastic constants and sound velocities of nm order thin films are essential for designing acoustic filters. However, it is difficult to measure them dielectric films. In this study, we use a three-layer structure where nano-thin film sandwiched between thicker metallic the longitudinal elastic constant film. We propose an efficiency function estimate optimal thicknesses components. Pt/NiO/Pt confirming our proposed method. The determined NiO deposited at room temperature smaller...

We propose a new type of tilt sensor. It consists grating and an image detects the collimated wavefront reflected from plane mirror. Its principle is described analyzed based on wave optics. Experimental results show its validity. Simulations ordinary autocollimator proposed sensor that effect noise measured angle smaller for latter. These possibility making simpler

In Japan, the Engineering Research Association for Superconductive Generation Equipment and Materials (Super-GM) has been conducting R&D since FY 1988 on 70-MW class model machines in an effort to realize a 200 MW pilot machine commissioned as part of Moonlight Project 'Development Superconductivity Technology Application Power Apparatuses'. The authors describe recent development superconducting generators Super-GM. It is noted that by Super-GM which started progressing from research stage...

A new technique for gamma-ray and X-ray spectral analyses is described. It employs an artificial neural network in order to meet requirements of easiness, compactness promptness the analysis. This only needs a suitable set component spectra training. Performance test shows good results obtained by 3"×3" NaI(Tl) spectrometer, both gamma- with 80cc high purity germanium detector. Degradation conditions applicability PIXE analysis are discussed.

For fast wavelength switching within the full available range of tunable laser array, we investigated a stabilizing method after on injection current to laser's active layer. Experimental results demonstrated that our feedback controller dramatically reduced time from 800 μs 2.0 μs.

Electron beam lithography is a highly flexible method that can be used to fabricate diffractive optical elements. However, the long exposure time required most serious point needs addressing, and this derived from lack of sensitivity electron resist. We have investigated physical properties polydimethylsiloxane poly(dimethylsiloxane-co-methylvinylsiloxane) for lithography. The results show these polysiloxanes exhibit much higher sensitivities than conventional substances, 1.5 0.9 µC/cm2,...

The hyperfine fields of Li impurities in ferromagnetic Ni are calculated by use the Korringa-Kohn-Rostoker (KKR) Green's function method framework local spin density approximation (LSDA) and supercell method. electronic structure is self-consistently determined taking account lattice relaxation around impurities. field at substitutional site shows a good agreement with experimentally observed field. gives rise to fairly large configurational changes surrounding host atoms case interstitial...

Electron beam lithography is a highly flexible method to fabricate micro-optical elements. However, the long exposure time largest problem, which derived from lack of sensitivity in electron resist. Instead conventional carbon-based resists, physical properties polydimethylsiloxane (PDMS) and poly [dimethylsiloxaneco-methylvinylsiloxane] (PMVS) for were investigated. As result, these polysiloxanes exhibited much higher 1.5 0.9μC/cm2, respectively adequate γ value 1.3. We succeeded...

To manage recent exponentially increasing data traffic, optical-to-optical burst switching and packet systems have been attracting much attention because they do not require an optical-to-electrical electrical-to-optical conversions. These high-speed optical switches with a large number of input/output ports. As candidate for the switch, we focused on combination wavelength tunable lasers arrayed waveguide grating router, studied distributed amplification feedback (TDA-DFB) switch....