نتایج جستجو برای: hammering pressure

تعداد نتایج: 407921  

2013
Sung Who Park Ik Soo Byon Hyun Jun Park Ji Eun Lee Boo Sup Oum

The aim of this study was to report a case of acute retinal necrosis (ARN) after intraocular foreign body removal. A 32-year-old male presented with visual loss in the left eye. He was hit by an iron fragment while he was hammering. An intraocular foreign body was found with corneal laceration and traumatic cataract. On the day he was injured, primary closure of the laceration, lensectomy, and ...

Journal: :Materials 2023

High-manganese steel (HMnS) coating was prepared using laser wire feeding cladding technology. Erosion damage behavior and erosion rate of both the HMnS substrate were investigated at room temperature an testing machine. SEM/EDS, XRD, EPMA, microhardness analyses used to characterize cross sections matrix, as well morphology, phase composition, eroded surface. The orientation characteristics, g...

Journal: :Cerebral cortex 2016
Markus Martin Lena Beume Dorothee Kümmerer Charlotte S M Schmidt Tobias Bormann Andrea Dressing Vera M Ludwig Roza M Umarova Irina Mader Michel Rijntjes Christoph P Kaller Cornelius Weiller

Impaired tool use despite preserved basic motor functions occurs after stroke in the context of apraxia, a cognitive motor disorder. To elucidate the neuroanatomical underpinnings of different tool use deficits, prospective behavioral assessments of 136 acute left-hemisphere stroke patients were combined with lesion delineation on magnetic resonance imaging (MRI) images for voxel-based lesion-s...

2013
Dominic Thewlis François Fraysse John J Costi Richard Stanley Boyin Ding Gregory I Bain Joseph J. Crisco Steven F. Viegas

Understanding the kinematics of the carpus is essential to the understanding and treatment of wrist pathologies. However, accurate measurement of the kinematics of the carpal bones is difficult because they are small bones undergoing complex movements of small amplitudes. As a result, to date, there is no clear consensus on carpal kinematics. Moreover, most studies only investigate single rotat...

2010
T. Steinbach C. S. Schnohr W. Wesch M. C. Ridgway D. Severin M. Bender

Swift heavy ion (SHI) irradiation of conventional glasses results in non-saturable plastic flow as a consequence of the ion hammering effect [1]. SHI irradiation of amorphous Si (a-Si) at non-perpendicular incidence also leads to unsaturated plastic flow, which shows a linear dependence on the ion fluence. The positive direction of flow suggests that a liquid phase with density similar to that ...

Journal: :International journal of occupational safety and ergonomics : JOSE 1996
M Rabiul Ahasan Seppo Väyrynen Heli Kirvesoja

Small industry workers are often involved in manual handling operations that require awkward body postures, therefore, musculoskeletal disorders and occupational injuries are a major problem. In this study, various types of tasks were recorded with a video camera to chart and analyze different postures by computerized OWAS (Ovako Working Posture Analysing System). Collected data showed that poo...

Journal: :Occupational and environmental medicine 2003
E Tjoe Nij A Burdorf J Parker M Attfield C van Duivenbooden D Heederik

BACKGROUND Construction workers are exposed to quartz containing respirable dust, at levels that may cause fibrosis in the lungs. Studies so far have not established a dose-response relation for radiographic abnormalities for this occupational group. AIMS To measure the extent of radiographic abnormalities among construction workers primarily exposed to quartz containing respirable dust. ME...

Journal: :Developmental psychology 2007
Tracy M Barrett Evan F Davis Amy Needham

These experiments explored the role of prior experience in 12- to 18-month-old infants' tool-directed actions. In Experiment 1, infants' use of a familiar tool (spoon) to accomplish a novel task (turning on lights inside a box) was examined. Infants tended to grasp the spoon by its handle even when doing so made solving the task impossible (the bowl did not fit through the hole in the box, but ...

Journal: :acta medica iranica 0
eskandari h hamzeimoghadam a fatolahpour e sheibani e

although measurement of intracranial pressure by noninvasive methods has been suggested, but mainly invasive methods are used for this purpose-increase in episcleral venous pressure can be expected to result in a linear increase in intraocular pressure. congested oculat veins with capillary leakage and hemorrhage are seen when the icp is increased, thus theoretically measurement of intraocular ...

2001
W. A. CALDER

short distances and at low altitudes. Females, on the other hand, were usually in the upper extremities of the trees and made longer flights. Males and females appeared to forage in the same way, and uncommonly did feed close together. Probing and peering were the primary means of food searching, although the birds tapped the trunk and larger limbs as they moved along them. Birds of both sexes ...

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