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Pressure to measure pressure: the McLean Tonometer [PDF]
British Journal of Ophthalmology, 2009 Albrecht von Graefe’s invention of the surgical iridectomy procedure for the treatment of glaucoma in 1857 was his impetus to design an instrument to measure the eye pressure so that he could record pressures before and after iridectomy. He also constructed a campimeter for plotting the visual field.
Richard Keeler +2 more
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Blood Pressure, Perfusion Pressure, and Glaucoma
American Journal of Ophthalmology, 2010To provide a critical review of the relationships between blood pressure, ocular blood flow, and glaucoma and the potential for glaucoma treatment through modulation of ocular perfusion.Summaries of the pertinent literature and input from glaucoma researchers and specialists with relevant experience.Review and interpretation of selected literature and ...
Joseph Caprioli, Anne L. Coleman
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1972
Pressure may be defined as force acting against a given area. Basically there exist two types of units for measuring pressure. Pressure may be expressed as weight per unit area or as the height of a liquid column. The first alternative clearly adheres to the definition according to which a weight (force) acts against a certain area.
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Pressure may be defined as force acting against a given area. Basically there exist two types of units for measuring pressure. Pressure may be expressed as weight per unit area or as the height of a liquid column. The first alternative clearly adheres to the definition according to which a weight (force) acts against a certain area.
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Pressure Ulcers and Pressure Relief Surfaces
Clinics in Plastic Surgery, 1998Pressure ulcer incidence has been reduced but not eliminated. A few patients still develop pressure ulcers despite using air-fluidized beds and other specialty beds. In the future, very high-risk patients may possibly be sent to space clinics to recuperate in zero gravity for extended periods.
Lucas Rugani +3 more
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Effect of Airway Pressure on Pericardial Pressure
American Review of Respiratory Disease, 1989The effect of applied positive airway pressure or PEEP on pericardial pressure was examined in closed-chest, anesthetized dogs with normal lungs and in animals with oleic acid-induced lung injury. Both groups were studied before and after vascular volume loading by dextran infusion.
Manuel R. Cabrera +3 more
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Advances in Small Animal Medicine and Surgery, 2015
Glaucoma is not a single disease entity, but a group of ocular diseases which are characterized by progressive death of retinal ganglion cells (the axons of which coalesce to become the optic nerve) and have the common, constant risk factor of elevated intraocular pressure (IOP).
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Glaucoma is not a single disease entity, but a group of ocular diseases which are characterized by progressive death of retinal ganglion cells (the axons of which coalesce to become the optic nerve) and have the common, constant risk factor of elevated intraocular pressure (IOP).
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Small, 2018
Flexible piezoresistive pressure sensors have been attracting wide attention for applications in health monitoring and human-machine interfaces because of their simple device structure and easy-readout signals.
Jidong Shi +6 more
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Flexible piezoresistive pressure sensors have been attracting wide attention for applications in health monitoring and human-machine interfaces because of their simple device structure and easy-readout signals.
Jidong Shi +6 more
semanticscholar +1 more source
Artificial pressure for pressure-linked equation
International Journal of Heat and Mass Transfer, 1992Based on the concept of artificial pressure, the APPLE (Artificial Pressure for Pressure-Linked Equation) and the NAPPLE (Nonstaggered APPLE) algorithms are developed for incompressible flows. Through two well-known examples, the APPLE algorithm is found to produce essentially the same results with only about 40 \% CPU time as compared with the SIMPLER
Shong-Leih Lee, R.Y. Tzong
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Graphene-Paper Pressure Sensor for Detecting Human Motions.
ACS Nano, 2017Pressure sensors should have an excellent sensitivity in the range of 0-20 kPa when applied in wearable applications. Traditional pressure sensors cannot achieve both a high sensitivity and a large working range simultaneously, which results in their ...
L. Tao +7 more
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Ultrasonic pressure measurement in pressure vessels
Review of Scientific Instruments, 2014Based on the reflected longitudinal wave, a new non-intrusive method for pressure measurement is proposed. The acoustoelastic theory and the thin-shell theory are introduced to develop the pressure measurement model in cylindrical pressure vessels. And a pressure measurement system is constructed to evaluate the effectiveness of the proposed method ...
Xianglong Yang +4 more
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