Results 231 to 240 of about 1,355,443 (287)

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Vision in near-head space

, 2005
openaire   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Occupational testing of near vision

Ophthalmic and Physiological Optics, 1994
The quality of near vision depends on distance visual acuity, accommodation capability and near vision correction, and cannot therefore be expressed in acuity values. Most near vision tests do not recognize this, and the lack in standardization should lie mainly attributed to this fundamental shortcoming.
J J, Vos, P, Padmos, J, Boogaard
openaire   +3 more sources

Altered vision near the hands

Cognition, 2008
The present study explored the manner in which hand position may affect visual processing. We studied three classic visual attention tasks (visual search, inhibition of return, and attentional blink) during which the participants held their hands either near the stimulus display, or far from the display. Remarkably, the hands altered visual processing:
Richard A, Abrams, Christopher C, Davoli, Feng, Du, William H, Knapp, Daniel, Paull   +4 more
openaire   +2 more sources

Near‐vision impairment and unresolved vision problems in Indigenous Australian adults

Clinical & Experimental Ophthalmology, 2012
AbstractBackground:  To describe near‐vision impairment, self‐reported unresolved vision problems and barriers to having near‐vision correction in Indigenous Australians.Design:  A nationwide population‐based study designed to determine the causes and prevalence of vision loss and utilization of eye care services.Participants:  Indigenous Australians ...
Arnold, Anna-Lena M. R., Goujon, Nicolas, Busija, Lucy, Fox, Sarah, Xie, Jing, Dunn, Ross A., Keeffe, Jill E., Taylor, Hugh R.   +7 more
openaire   +4 more sources

Information Processing in Near Peripheral Vision

The Journal of General Psychology, 1984
The present study required that Ss name briefly exposed single lower-case letters that were presented at a total of 24 locations (8 meridians X 3 retinal eccentricities, 0.5 degrees, 2.75 degrees, and 5.0 degrees from a central fixation point, 0 degrees).
openaire   +2 more sources

Adjustable Focus Telescopes for Near Vision

Optometry and Vision Science, 1991
It is important for clinicians to know the equivalent viewing power and corresponding equivalent viewing distance of the adjustable-focus telescopes they prescribe for low vision patients. Formulas are presented here to calculate the equivalent viewing power and distance of these telescopes.
openaire   +2 more sources

Fabric inspection by near-infrared machine vision

Optics Letters, 2004
Fabrics that have superstructures of colored squares, bands, etc., superimposed upon the basic web structure can be advantageously analyzed by use of near-infrared (NIR) illumination and a conventional monochrome camera. The reduction in contrast of the superstructure signal in the NIR image facilitates inspection of the fabric's structure and defect ...
Maria S, Millán, Jaume, Escofet
openaire   +2 more sources

Near vision contrast sensitivity after photorefractive keratectomy

Journal of Cataract and Refractive Surgery, 1997
To evaluate near vision contrast sensitivity as a measure of visual performance after photorefractive keratectomy (PRK).LSU Eye Center, New Orleans, Louisiana.Using Holladay Contrast Acuity Test cards, near (reading) vision for five levels of contrast sensitivity was evaluated in a cross section of 53 eyes of 31 patients 25 to 732 days after PRK ...
M J, Hodkin, M M, Lemos, M B, McDonald, J T, Holladay, S H, Shahidi   +4 more
openaire   +2 more sources

Near vision, lags of accommodation and myopia

Ophthalmic and Physiological Optics, 1999
SummaryIt is shown that, with some simplifying assumptions about the nature of the accommodation response/stimulus curve, geometrical optics predicts that lags in accommodation will result in ocular modulation transfer for any linear size of grating component in an object being independent of object distance.
openaire   +2 more sources