نتایج جستجو برای: welder

تعداد نتایج: 230  

2005
Dieter Hutter Werner Stephan

At the time Alan Turing was engaged in deciphering the code of the Enigma in Bletchley Park and Konrad Zuse applied his patent for the first electronic computer called “Rechenvorrichtung” in Berlin, Jörg was born into the rural capital of the smallest Fürstentum of Germany, called Schaumburg-Lippe, a name even well educated Germans have probably never heard of. Jörg grew up as the oldest son of...

Journal: :Archives of ophthalmology 2001
G Andreotti J L Lange J F Brundage

OBJECTIVES To assess incidence rates of eye injuries in the US Armed Forces and to identify demographic and occupational correlates of risk. DESIGN Retrospective population-based study. SETTING US military medical facilities worldwide. PARTICIPANTS All individuals in the US Armed Forces during 1998. MAIN OUTCOME MEASURES Incidence rates of hospitalizations and ambulatory visits for eye ...

Journal: :Cognition 2003
Amy E Booth Sandra R Waxman

Two issues are at stake in this interchange. One concerns the relation between perceptual, conceptual and linguistic knowledge in early word learning. The other concerns the judicious treatment of evidence. Briefly stated, we designed our experiments (Booth & Waxman, 2002) with one clear goal: to document the pervasive role of conceptual information in naming. Three-year-old children in all con...

Journal: :Polish annals of medicine 2023

<b>Introduction.</b> People’s present lifestyle, their work conditions as well unhealthy eating and leisure habits contribute to a more frequent incidence of spinal diseases. It is believed that representatives certain professions are vulnerable suffering from such than others. For instance, those employed in the shipbuilding industry seem be often affected by problems. noteworthy s...

Journal: :Neurotoxicology 2005
Ling Lu Long-Lian Zhang G Jane Li Wenrui Guo Wannian Liang Wei Zheng

This study was performed to determine airborne manganese levels during welding practice and to establish the relationship between long-term, low-level exposure to manganese and altered serum concentrations of manganese, iron, and proteins associated with iron metabolism in career welders. Ninety-seven welders (average age of 36 years) who have engaged in electric arc weld in a vehicle manufactu...

2011
B. Shen G. H. Paulino

The accuracy of an adopted cohesive zone model (CZM) can affect the simulated fracture response significantly. The CZM has been usually obtained using global experimental response, e.g., load versus either crack opening displacement or load-line displacement. Apparently, deduction of a local material property from a global response does not provide full confidence of the adopted model. The diff...

Journal: :Infusion & chemotherapy 2023

BACKGROUND. Idiopathic pulmonary hemosiderosis (IPH) in adults is a rare pathology of unknown etiology. We did not find information about IPH with occupational hazards the available literary sources, which makes this work relevant.
 OBJECTIVE. To analyze peculiarities course patient 23 years’ experience as gas-electric welder at factories by our own clinical observation.
 RESULTS AND ...

Hossein Ali Hakimi, Masoumeh Karami, Mokhles Bateni, Rasoul Hemmatjo, Sajad Zare, Yaser Sahranavard,

Background & Aims of the Study: Welder’s exposure to welding fumes can cause occupational diseases. The current study sought to examine exposure to welding fumes among welders who work in the repair shop of Sarcheshmeh Copper Complex and design a local exhaust ventilation system to control exposure to welding fumes. Materials & Methods: This applied analytical study was co...

2017

Visual sensing technology is widely used in welding practices because visual devices are decreasing in price, increasing in reliability and improving in image processing hardware and software. As the most studied welding sensor, CCD(Charge Coupled Device) is more suitable for quality control of welding process than other means of sensing devices because it can obtain both two dimensional and th...

2007
Anatoly P. Pashkevich Alexandre B. Dolgui

Welding is one of the most successful applications for industrial robots, which encourages intensive research and development in the area of the CAD-based and off-line programming (Pires et al., 2003, Yagi, 2004). At present, relevant software tools allow to optimise the process parameters, which directly influence the product quality and the system working cycle. Besides, they enable users to ...

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