Omron Corporation and University of Hyogo | Date: 2015-04-22
An image acquisition part acquires image data from an image sensor provided in a room. A storage stores information indicating a transition model of a human body posture and test information indicating a test area of the image data in each posture of the transition model. A posture estimator calculates a statistic in the test area of the image data by referring to the information indicating the transition model and the test information, and estimates a current human body posture from a human body posture before one point of time based on the statistic.
Attitude Estimation Device, Attitude Estimation System, Attitude Estimation Method, Attitude Estimation Program, And Computer-Readable Recording Medium Whereupon Attitude Estimation Program Is Recorded
Omron Corporation and University of Hyogo | Date: 2017-03-22
An image acquisition part (15) acquires image data from an image sensor (2, 3) provided in a room. A storage (6) stores information indicating a transition model of a human body posture and test information indicating a test area of the image data in each posture of the transition model. A posture estimator (5) calculates a statistic in the test area of the image data by referring to the information indicating the transition model and the test information, and estimates a current human body posture from a human body posture before one point of time based on the statistic.
Ogata H.,Max Planck Institute for Chemical Energy Conversion |
Nishikawa K.,Max Planck Institute for Chemical Energy Conversion |
Nishikawa K.,University of Hyogo |
Lubitz W.,Max Planck Institute for Chemical Energy Conversion
Nature | Year: 2015
The enzyme hydrogenase reversibly converts dihydrogen to protons and electrons at a metal catalyst. The location of the abundant hydrogens is of key importance for understanding structure and function of the protein. However, in protein X-ray crystallography the detection of hydrogen atoms is one of the major problems, since they display only weak contributions to diffraction and the quality of the single crystals is often insufficient to obtain sub-ångström resolution. Here we report the crystal structure of a standard [NiFe] hydrogenase (∼91.3 kDa molecular mass) at 0.89 Å resolution. The strictly anoxically isolated hydrogenase has been obtained in a specific spectroscopic state, the active reduced Ni-R (subform Ni-R1) state. The high resolution, proper refinement strategy and careful modelling allow the positioning of a large part of the hydrogen atoms in the structure. This has led to the direct detection of the products of the heterolytic splitting of dihydrogen into a hydride (H-) bridging the Ni and Fe and a proton (H+) attached to the sulphur of a cysteine ligand. The Ni-H- and Fe-H- bond lengths are 1.58 Å and 1.78Å, respectively. Furthermore, we can assign the Fe-CO and Fe-CN- ligands at the active site, and can obtain the hydrogen-bond networks and the preferred proton transfer pathway in the hydrogenase. Our results demonstrate the precise comprehensive information available from ultra-high-resolution structures of proteins as an alternative to neutron diffraction and other methods such as NMR structural analysis. ©2015 Macmillan Publishers Limited. All rights reserved.
Itoh Denki Co. and University of Hyogo | Date: 2015-04-29
It is an object of the present invention to provide a conveyor which estimates weight of a transport object while it is carried without using devices such as a load cell which directly measures weight. The conveyor has a plurality of zones forming a series of carriage ways. An approach-run zone and a weight-measurement zone are arranged adjacently in the conveying direction and are provided with different drive motors. The drive motor of the approach-run zone and the drive motor of the weight-measurement zone are controlled with respectively different predetermined rotation speeds as their target rotation speeds. A rotation speed sensing means obtains the change of rotation speed of the drive motor in the weight-measurement zone when a transport object is conveyed into the weight-measurement zone from the approach-run zone, and a weight sensing means then calculates the weight of the transport object based on the change of the rotation speed.
Tokyo Electron and University of Hyogo | Date: 2015-09-04
Provided is a planarization method capable of reliably planarizing a metal film formed before an MTJ element of an MRAM is formed. An MTJ element is formed by a sequence of processes including: forming a Cu film to be embedded in a SiO_(2 )film in a wafer W; irradiating an oxygen GCIB to a surface of the Cu film to planarize the Cu film; forming a Ta film; forming a Ru film or a Ta film; irradiating the oxygen GCIB to the Ta film, the Ru film or the Ta film to planarize the Ta film, the Ru film or the Ta film; forming a PtMn film; irradiating the oxygen GCIB to a surface of the PtMn film to planarize the PtMn film; forming a CoFe thin film and a Ru thin film; and forming a CoFeB thin film, a MgO thin film and a CoFeB thin film in that order.
Yao H.,University of Hyogo
Journal of Physical Chemistry Letters | Year: 2012
The first magnetic circular dichroism (MCD) spectra are reported at room temperature for well-defined thiolate-protected Au 25 clusters (Au 25(SG) 18 and Au 25(PET) 18, where SG and PET denote glutathione and 2-phenylethanethiolate, respectively). MCD essentially corresponds to electronic transitions in the absorption spectrum, so the electronic structures of the Au 25 clusters are explored based on a simultaneous deconvolution analysis of both the electronic absorption and MCD spectra, giving enhanced spectral resolution. We then find that the observed MCD responses are entirely interpreted in terms of the Faraday B terms, representing strict nondegeneracies of the excited and ground states of the Au 25 clusters that correspond to so-called superatom D and P orbitals, respectively. © 2012 American Chemical Society.
Yoshikawa S.,University of Hyogo |
Shimada A.,University of Hyogo
Chemical Reviews | Year: 2015
The structural and functional studies of Cytochrome c oxidase (CcO) enzyme is reviewed, focusing primarily on findings made after the initial reports of the X-ray structures of CcO, and the reaction mechanism of this enzyme. For studies of bovine heart CcO, procedures using two types of detergents, one for stabilization and purification and the other for stabilizing the purified enzyme in aqueous solution, are critical to the quality of the final product. A critical factor for improving the resolution of X-ray structures of bovine heart CcO is the conditions for soaking the crystals in medium containing antifreeze reagents. At present, the X-ray structure of bovine heart CcO has been the most extensively examined. The current resolution is high enough to allow discrimination between the cis and trans-configurations of fatty acid tails of phosphatidylglycerol molecules tightly bound to CcO, based on the electron density map. It has been proposed that in the H-pathway of bovine heart CcO, the redox-coupled conformational changes in D51 and the water cavity and the unidirectional proton-transfer property of the peptide bond between Y440 and S441 cooperatively facilitate unidirectional proton transfer through the H-pathway.
Yet another poor mans green bulk heterojunction photocells: Annealing effect and film composition dependence of photovoltaic devices using poly(3-hexylthiophene):C70 composites prepared with chlorine-free solvent
Tada K.,University of Hyogo
Solar Energy Materials and Solar Cells | Year: 2013
Chemically modified fullerenes and chlorinated solvents have been predominantly chosen in the recent studies of the photovoltaic devices based on polymer bulk heterojunction composites. However, these items seem to be undesirable because of their potential impacts on the environment as well as the consumption of resources. In this context, a systematic study on the annealing effect and film composition dependence of bulk heterojunction photovoltaic devices based on composites consisting of poly(3-hexylthiophene) (P3HT) and neat C70 prepared with a chlorine-free solvent 1,2,4-trimethylbenzene has been carried out. For the device using P3HT:C70 composite (2:1 by weight) film as an active layer, power conversion efficiency of 1.47%, with open-circuit voltage of 0.52 V, short-circuit current density of 6.2 mA/cm 2 and fill-factor of 45%, has been obtained after post-production annealing at 160°C. The combination of neat fullerenes with naturally obtained solvents will open up a new way to produce cost-effective and environmentally-friendly photovoltaic devices based on polymer:fullerene bulk heterojunction composites. © 2012 Elsevier B.V.
University of Hyogo | Date: 2015-08-12
In the present invention, a tomographic image can be accurately generated at high speed in a holographic tomographic microscope, a method for generating a holographic tomographic image, and a data acquisition method for the holographic tomographic images. The present method includes a data acquisition process (S1) and tomographic image generation processes (S2 to S7). In the data acquisition process, holograms (I^(j)_(OR), I^(j)_(QR), I^(j)_(LR)) of an object light (O) and so forth are acquired for each light with a wavelength (^(j)) by changing the wavelengths of the illumination light (Q), off-axis spherical wave reference light (R), and inline spherical wave reference light (L). In the tomographic image generation process, a reconstructed light wave (h^(j)) of the object light (O^(j)) and a reconstructed light wave (c^(j)) of the illumination light (Q^(j)) on a reconstruction surface (z=z_(P)) are generated from these holograms. A reconstruction light wave (h^(j)/(c^(j)/|c^(j)|) with adjusted phase is added up for each wavelength (j=1, .., N) to generate a tomographic hologram (H_(P)).From this, an accurate and focused tomographic image S_(p)=|H_(p)|^(2) without distortion can be generated.
University of Hyogo | Date: 2016-09-07
The present invention can realize both a transmission type and a reflection type, and provides a holographic microscope which can exceed the resolution of the conventional optical microscope, a hologram data acquisition method for a high-resolution image, and a high-resolution hologram image reconstruction method. In-line spherical wave reference light (L) is recorded in a hologram (I_(LR)) using spherical wave reference light (R), and an object light (O^(j)) and an illumination light (Q^(j)) are recorded in a hologram (I^(j)_(OQR)) using a spherical wave reference light (R) by illuminating the object with an illumination light (Q^(j), j=1, .., N) which is changed its incident direction. From those holograms, a hologram (J^(j)_(OQL)), from which the component of the reference light (R) is removed, is generated, and from the hologram, a light wave (h^(j)) is generated. A light wave (c^(j)) of the illumination light (Q^(j)) is separated from the light wave (h^(j)), and using its phase component (^(j)=c^(j)/|c^(j)|), a phase adjustment reconstruction light wave is derived and added up as (H_(P)=h^(j)/^(j)), and an object image (S_(P)=|H_(P)|^(2)) is reconstructed.