نتایج جستجو برای: optimum vertical alignment

تعداد نتایج: 235707  

2009
Yaw Nkansah-Gyekye Johnson I. Agbinya

The integration of diverse but complementary cellular and wireless technologies in the next generation of wireless communication systems requires the design of intelligent vertical handoff decision algorithms to enable mobile users to seamlessly switch network access and experience uninterrupted service continuity anywhere and anytime. This paper provides an adaptive multiple attribute vertical...

2013
Scott Jordan

Analog Gradient Search This analog phase demodulation hill-climbing technique works for clean, quasi-Gaussian couplings already near optimal alignment. However it will lock-in on local maxima and “flat spots” which occur in multimode couplings, with imperfect devices, or far from optimum alignment. Nevertheless, instrumentation based on this principle was popular, though bulky and providing too...

Journal: :European Spine Journal 2021

Abstract Purpose The present study compared patients developing ASD after L4/5 spinal fusion with a control group using patient-specific statistical shape model (SSM) to find alignment-differences between the groups. Methods This included who had undergone at and either remained asymptomatic (control group; n = 25, follow-up of > 4 years) or required revision surgery for epifusional ( 22). L...

2013
Jeff Bagust Sharon Docherty Rima Abdul Razzak

The Rod and Frame test measures an individual’s subjective assessment of visual vertical and horizontal in the presence of a surrounding tilted frame. Attention has focused upon the effects of the surrounding frame upon spatial accuracy (Spatial Frame Effect). We have investigated if the tilted frame also affects the time that subjects take to make the alignment (Temporal Frame Effect). Results...

2003
Yoichi Murakami Shohei Chiashi Yuhei Miyauchi Minghui Hu Masaru Ogura Tatsuya Okubo Shigeo Maruyama

Films of vertically aligned single-walled carbon nanotubes (SWNTs) with a few μm thickness were grown by catalytic chemical vapor deposition (CVD) on quartz substrates. Low-temperature CVD from ethanol was performed by using densely mono-dispersed Co-Mo catalyst of ≈ 1.0 – 2.0 nm prepared on quartz substrates by a dip-coating method. Continuous reduction of catalysts with Ar/H2 (3% H2) during C...

Journal: :Vision Research 2006
Lukas Pfenninger Klara Landau Oliver Bergamin

Harms tangent screen, a subjective measurement method of three-dimensional binocular alignment, was compared with search coil recording. Twenty-three patients with unilateral trochlear nerve palsy were measured in nine gaze positions. The two methods correlated best for the horizontal gaze deviation, the vertical gaze deviation, and the vertical incomitance, but there was no correlation for the...

2015
Leigh A. McGarvie Marta Martinez-Lopez Ann M. Burgess Hamish G. MacDougall Ian S. Curthoys

BACKGROUND/HYPOTHESIS With the video head impulse test (vHIT), the vertical VOR gain is defined as (vertical eye velocity/vertical head velocity), but compensatory eye movements to vertical canal stimulation usually have a torsional component. To minimize the contribution of torsion to the eye movement measurement, the horizontal gaze direction should be directed 40° from straight ahead so it i...

2015
Tatsuya Yasuda Tomohiko Hasegawa Yu Yamato Sho Kobayashi Daisuke Togawa Hideyuki Arima Yukihiro Matsuyama

Objectives Spinal sagittal alignment has been reported that it is highly associated with health related QOL in adult spinal deformity patients. Optimal sagittal alignment is critical for the efficient function of the musculoskeletal system. In Japan as aging country, a number of elderly people with spinal deformity seems to be increasing. In general, sagittal alignment of elderly people is more...

Journal: :Vision Research 2002
Erich W. Graf James S. Maxwell Clifton M. Schor

When binocular vision is prevented with monocular occlusion, the two eyes assume a position of rest related to the combination of underlying tonic innervation of the oculomotor system, cross-coupled accommodative-vergence input and vergence responses to perceptual cues for spatial location relative to the head. When the latter two are controlled, the covered eye has been shown in the majority o...

Journal: :Spatial vision 2001
A Popple U Polat Y Bonneh

Our ability to align three Gabor patches depends upon their internal carrier orientation; we are better at aligning vertical or horizontal patches than oblique patches (Keeble and Hess, 1998). However, the tuning of alignment to patch orientation has not studied in detail. We measured the alignment of a vertical target with reference patches varying in orientation and found it tuned to vertical...

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