Wyniki wyszukiwania dla: K Aoyagi

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Venous thromboembolism after total joint arthroplasty from a Japanese multicenter study with subacute and long term follow-up

K. Kumagai, S. Motokawa, Y. Makino, K. Aoyagi, więcej

Osteoarthritis and Cartilage > 2018 > 26 > S1 > S277-S278

artykuł

Fracture Characterization and Rock Mass Damage Induced by Different Excavation Methods in the Horonobe URL of Japan

T. Tokiwa, K. Tsusaka, K. Aoyagi

International Journal of Civil Engineering > 2018 > 16 > 4 > 371-381

We conducted detailed fracture mapping of the soft sedimentary rocks (uniaxial compressive strength of 10–20 MPa) in shaft walls at the Horonobe Underground Research Laboratory to characterize fractures and to understand the influence of different excavation methods on rock mass damage. The mapping indicates that the fractures are numerous and can be divided into shear fractures and extension fractures...

artykuł

Characterization of powder bed generation in electron beam additive manufacturing by discrete element method (DEM)

Y. Zhao, Y. Koizumi, K. Aoyagi, K. Yamanaka, więcej

Materials Today: Proceedings > 2017 > 4 > 11 Part 1 > 11437- 11440

The dynamic behavior of a collection of powder during raking process was simulated by utilizing discrete element method (DEM), aiming at obtaining powder packing features of powder layer, which are valuable for electron beam additive manufacturing. For a better matching between simulation and real process, the mechanical model of particulate system was modified. The simulation results revealed that...

rozdział

Novel stacked CMOS image sensor with advanced Cu2Cu hybrid bonding

Y. Kagawa, N. Fujii, K. Aoyagi, Y. Kobayashi, więcej

2016 IEEE International Electron Devices Meeting (IEDM) > 8.4.1 - 8.4.4

2016 IEEE International Electron Devices Meeting (IEDM)

We have successfully mass-produced novel stacked back-illuminated CMOS image sensors (BI-CIS). In the new CIS, we introduced advanced Cu2Cu hybrid bonding that we had developed. The electrical test results showed that our highly robust Cu2Cu hybrid bonding achieved remarkable connectivity and reliability. The performance of image sensor was also investigated and our novel stacked BI-CIS showed favorable...

artykuł

Low Bone Density is Not Associated with Aortic Calcification

K. Aoyagi, P.D. Ross, J. Orloff, J.W. Davis, więcej

The aging process is associated with an increasing prevalence of osteoporosis and aortic calcification, but it is uncertain if these two conditions are interrelated. We examined the relationship between bone mineral density (BMD) and evidence of aortic calcification on spinal radiographs among 524 Japanese-American women living in Hawaii. The prevalence of aortic calcification increased with age from...

artykuł

104 CDH2 negative esophageal squamous cell carcinoma with cytotoxic T-lymphocyte signatures is a good responder subtype to definitive chemoradiotherapy

Y. Tanaka, K. Aoyagi, K. Minashi, R. Komatsuzaki, więcej

European Journal of Cancer > 2015 > 51 > S3 > S2

artykuł

What decreases motivation of students to participate in school-based extracurricular sports activities?

K. Aoyagi, K. Ishii, A. Shibata, H. Arai, więcej

Journal of Science and Medicine in Sport > 2014 > 18 > Supplement 1 > e155

artykuł

Accuracy of spinal curvature assessed by a computer-assisted device and anthropometric indicators in discriminating vertebral fractures among individuals with back pain

S. Mizukami, Y. Abe, R. Tsujimoto, K. Arima, więcej

Osteoporosis International > 2014 > 25 > 6 > 1727-1734

Summary This study examined the accuracy of thoracic and lumbar kyphotic angles as well as anthropometric indicators for discriminating patients with vertebral fracture among Japanese women >50 years old with back pain. Along with region-specific kyphotic angles and anthropometric indicators, the combination of thoracic and lumbar kyphotic angles offered the highest accuracy. Introduction Vertebral...

artykuł

Subthalamic deep brain stimulation can improve gastric emptying in Parkinson's disease

T. Uchiyama, E. Arai, M. Arai, Y. Higuchi, więcej

Journal of the Neurological Sciences > 2013 > 333 > Supplement 1 > e75

artykuł

Associations of vertebral deformities and osteoarthritis with back pain among Japanese women: the Hizen-Oshima study

H. Kitahara, Z. Ye, K. Aoyagi, P. D. Ross, więcej

Osteoporosis International > 2013 > 24 > 3 > 907-915

Summary We examined the spinal distribution of the types of vertebral deformities and the associations of vertebral deformities and osteoarthritis with back pain in Japanese women. Midthoracic and upper lumbar vertebrae were more susceptible to deformity. Vertebral deformity and osteoarthritis were frequent and were associated with back pain. Introduction Vertebral fractures due to osteoporosis...

artykuł

Beneficial effect of risedronate for preventing recurrent hip fracture in the elderly Japanese women

M. Osaki, K. Tatsuki, T. Hashikawa, T. Norimatsu, więcej

Osteoporosis International > 2012 > 23 > 2 > 695-703

Summary A 36-month observational study compared the incidence of unaffected side hip fracture in Japanese female osteoporosis patients with a history of hip fracture between 173 patients receiving risedronate and 356 risedronate-untreated controls. New hip fractures were significantly less frequent in the risedronate group, suggesting a preventive effect in high-risk patients. Introduction The purpose...

artykuł

Bone mineral densities in patients with developmental dysplasia of the hip

K. Okano, M. Ito, K. Aoyagi, S. Motokawa, więcej

Osteoporosis International > 2011 > 22 > 1 > 201-205

Summary Bone mineral density (BMD) of the lumbar spine, ultradistal radius, and calcaneus were significantly higher in the developmental dysplasia of the hip (DDH) patients than in the controls. Therefore, our data suggest that BMDs at different skeletal sites are greater in patients with DDH than in healthy women. Introduction DDH has been acknowledged as a potentially preosteoarthritic condition...

artykuł

Quantitative ultrasound and radiographic absorptiometry are associated with vertebral deformity in Japanese Women: the Hizen–Oshima study

Y. Abe, N. Takamura, Z. Ye, M. Tomita, więcej

Osteoporosis International > 2011 > 22 > 4 > 1167-1173

Summary We evaluated the ability of heel quantitative ultrasound (QUS) and metacarpal radiographic absorptiometry (RA) to identify subjects with vertebral deformities in Japanese women aged ≥40. Both QUS and RA were associated with vertebral deformities, and the estimated prevalence at each T-score widely varied with age. Introduction Heel QUS and metacarpal RA have been used for screening patients...

artykuł

P31-12 Coherence of electroencephalograms on deep brain stimulation for parkinsonism

I. Shimoyama, Y. Higuchi, K. Aoyagi, K. Mamada, więcej

Clinical Neurophysiology > 2010 > 121 > Supplement 1 > S288

artykuł

P5-21 Effects of chronic subthalamic stimulation on electroencephalography in Parkinson's disease

Y. Higuchi, O. Nagano, K. Aoyagi, T. Uchiyama, więcej

Clinical Neurophysiology > 2010 > 121 > Supplement 1 > S132

artykuł

Temperature Dependence of Toluene Decomposition Behavior in the Discharge–Catalyst Hybrid Reactor

K. Hayashi, H. Yasui, M. Tanaka, S. Futamura, więcej

IEEE Transactions on Industry Applications > 2009 > 45 > 5 > 1553 - 1558

The temperature dependence of toluene decomposition behavior was investigated with a two-stage discharge and ozone-decomposition-catalyst hybrid reactor. Toluene conversion jumped by four times by adding catalyst to the discharge at ambient temperature. This synergistic effect diminished with an increase in temperature, and no synergy was observed at higher than 200degC. In the hybrid reactor, CO_x...

artykuł

Association of unipedal standing time and bone mineral density in community-dwelling Japanese women

A. Sakai, N. Toba, M. Takeda, M. Suzuki, więcej

Osteoporosis International > 2009 > 20 > 5 > 731-736

Summary Bone mineral density (BMD) and physical performance of the lower extremities decrease with age. In community-dwelling Japanese women, unipedal standing time, timed up and go test, and age are associated with BMD while in women aged 70 years and over, unipedal standing time is associated with BMD. Introduction The aim of this study was to clarify whether unipedal standing time is significantly...

rozdział

Bandwidth Performance of W-shaped Plastic Optical Fiber under Static Fiber Bending

K. Aoyagi, T. Ishigure

LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings > 321 - 322

LEOS 2007. 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society

Transmission properties of graded-index plastic optical fiber(GI POF) and W-shaped plastic optical fiber(W-shaped POF) are investigated. We demonstrate that bandwidth performance of W-shaped POF is more stable than that of GI POF against microbending.

rozdział

An experimental analysis of ionic wind velocity characteristics in a needle-plate electrode system by means of laser-induced phosphorescence

Y. Kitahara, K. Aoyagi, R. Ohyama

2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena > 529 - 532

2007 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

A flow velocity measurement of ionic wind fields under DC corona discharge on a needle-plate electrode system was experimentally investigated. In this work, a vapor-phase biacetyl tracer with laser-induced phosphorescence phenomenon was applied to optically characterize the ionic wind profile. The phosphorescence radiation was used as a molecular tagging of the ionic wind and the lifetime of phosphorescence...

artykuł

The evaluation of sympathetic skin response for visual emotional stimuli

D. Yamashiro, M. Aihara, C. Ono, H. Kanemura, więcej

Clinical Neurophysiology > 2007 > 118 > 10 > e206

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