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Showing 1 to 12 of 392 entries
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Study of Perfluoroalkyl Chain-Specific Band Shift in Infrared Spectra on the Chain Length.

The journal of physical chemistry. A

Shimoaka T, Sonoyama M, Amii H, Takagi T, Kanamori T, Hasegawa T.
PMID: 28981281
J Phys Chem A. 2017 Nov 09;121(44):8425-8431. doi: 10.1021/acs.jpca.7b08940. Epub 2017 Oct 25.

The CF

Aerial projection of three-dimensional motion pictures by electro-holography and parabolic mirrors.

Scientific reports

Kakue T, Nishitsuji T, Kawashima T, Suzuki K, Shimobaba T, Ito T.
PMID: 26152453
Sci Rep. 2015 Jul 08;5:11750. doi: 10.1038/srep11750.

We demonstrate an aerial projection system for reconstructing 3D motion pictures based on holography. The system consists of an optical source, a spatial light modulator corresponding to a display and two parabolic mirrors. The spatial light modulator displays holograms...

Atomistic mechanisms of intermittent plasticity in metals: dislocation avalanches and defect cluster pinning.

Physical review. E, Statistical, nonlinear, and soft matter physics

Niiyama T, Shimokawa T.
PMID: 25768512
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Feb;91(2):022401. doi: 10.1103/PhysRevE.91.022401. Epub 2015 Feb 04.

Intermittent plastic deformation in crystals with power-law behaviors has been reported in previous experimental studies. The power-law behavior is reminiscent of self-organized criticality, and mesoscopic models have been proposed that describe this behavior in crystals. In this paper, we...

Design, implementation and characterization of a quantum-dot-based volumetric display.

Scientific reports

Hirayama R, Naruse M, Nakayama H, Tate N, Shiraki A, Kakue T, Shimobaba T, Ohtsu M, Ito T.
PMID: 25683656
Sci Rep. 2015 Feb 16;5:8472. doi: 10.1038/srep08472.

In this study, we propose and experimentally demonstrate a volumetric display system based on quantum dots (QDs) embedded in a polymer substrate. Unlike conventional volumetric displays, our system does not require electrical wiring; thus, the heretofore unavoidable issue of...

Predictive value of neutrophil to lymphocyte ratio for the presence of coronary artery ectasia in patients with aortic aneurysms.

International journal of cardiology. Heart & vessels

Ikenaga H, Kurisu S, Watanabe N, Shimonaga T, Higaki T, Iwasaki T, Utsunomiya H, Mitsuba N, Ishibashi K, Dohi Y, Fukuda Y, Imai K, Sueda T, Kihara Y.
PMID: 29450182
Int J Cardiol Heart Vessel. 2014 Aug 15;4:30-34. doi: 10.1016/j.ijchv.2014.08.002. eCollection 2014 Sep.

BACKGROUND: Both aortic aneurysms and coronary artery ectasia (CAE) frequently coexist and are associated with more pronounced inflammation. Neutrophil to lymphocyte ratio (NL ratio) is widely used as a marker of inflammation. However, relation between CAE and NL ratio...

Random phase-free computer-generated hologram.

Optics express

Shimobaba T, Ito T.
PMID: 25968783
Opt Express. 2015 Apr 06;23(7):9549-54. doi: 10.1364/OE.23.009549.

Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the reconstructed image....

Myocardial ischemia induced by major aortopulmonary collateral arteries treated with transcatheter coil embolization.

Clinical case reports

Kakizaki R, Tojo T, Minami Y, Koitabashi T, Woodhams R, Shimohama T, Ishii M, Ako J.
PMID: 28588860
Clin Case Rep. 2017 May 12;5(6):1022-1025. doi: 10.1002/ccr3.980. eCollection 2017 Jun.

Major aortopulmonary collateral arteries branching from coronary arteries may cause coronary steal. The careful follow-up is needed irrespective of symptoms because increasing physical activities and oxygen demand along with the age may induce myocardial ischemia. Transcatheter intervention by well-trained...

Speeding up image quality improvement in random phase-free holograms using ringing artifact characteristics.

Applied optics

Nagahama Y, Shimobaba T, Kakue T, Masuda N, Ito T.
PMID: 28463300
Appl Opt. 2017 May 01;56(13):F61-F66. doi: 10.1364/AO.56.000F61.

A holographic projector utilizes holography techniques. However, there are several barriers to realizing holographic projections. One is deterioration of hologram image quality caused by speckle noise and ringing artifacts. The combination of the random phase-free method and the Gerchberg-Saxton...

Color computer-generated hologram generation using the random phase-free method and color space conversion.

Applied optics

Shimobaba T, Makowski M, Nagahama Y, Endo Y, Hirayama R, Hiyama D, Hasegawa S, Sano M, Kakue T, Oikawa M, Sugie T, Takada N, Ito T.
PMID: 27411145
Appl Opt. 2016 May 20;55(15):4159-65. doi: 10.1364/AO.55.004159.

We propose two calculation methods of generating color computer-generated holograms (CGHs) with the random phase-free method and color space conversion in order to improve the image quality and accelerate the calculation. The random phase-free method improves the image quality...

Single glass block Faraday effect current sensor with homogeneous isotropic closed optical circuit.

Applied optics

Yoshino T, Gojyuki M, Takahashi Y, Shimoyama T.
PMID: 18259382
Appl Opt. 1997 Aug 01;36(22):5566-73. doi: 10.1364/ao.36.005566.

A new scheme is proposed for achieving a closed, homogeneous, and isotropic optical circuit necessary for high-accuracy optical-current sensors. It makes use of a single solid polygonal solid with reflection surfaces coated by quarter-wavelength dielectric thin-film layers for the...

Multicentric extra-abdominal desmoid tumors arising in bilateral lower limbs.

Rare tumors

Shimoyama T, Hiraoka K, Shoda T, Hamada T, Fukushima N, Nagata K.
PMID: 21139941
Rare Tumors. 2010 Mar 31;2(1):e12. doi: 10.4081/rt.2010.e12.

Extra-abdominal desmoid tumors preferentially affect the shoulders, arms, backs, buttocks, and thighs of young adults. Multicentric occurrence is rather rare but seems to be another distinctive feature of extra-abdominal desmoid tumors. In this article we report a rare case...

Quantitative assessment method for computer-generated holograms free from the effect of viewpoint.

Optics letters

Kiwaki T, Shimobaba T, Masuda N, Ito T.
PMID: 20364234
Opt Lett. 2010 Apr 01;35(7):1112-4. doi: 10.1364/OL.35.001112.

A quantitative assessment method for computer-generated holograms is presented. Our scheme is based on a simple evaluation quantity reflecting the optical radiating power from the holograms; this assures the overall validity of our method as a three-dimensional (3D) display...

Showing 1 to 12 of 392 entries