نتایج جستجو برای: printing energy
تعداد نتایج: 694987 فیلتر نتایج به سال:
A printing system enables the printing of multimedia received from a media source that is communicatively coupled to the printer. Based on the received multimedia data, the printing system produces a paper or other printed output as well as a related electronic output. Together, the printed and electronic outputs provide a representation of the multimedia. The printer is also capable of communi...
The invention of a new ICT, the printing press, may have been a fundamental turning point in knowledge transition. But did Gutenberg’s printing press succeed in Europe because of, or despite of, government intervention? To answer the question, this paper endeavours to make a comparative analysis of the role of governments in the invention, adoption and dissemination of the printing press in Eur...
Introduction: In many countries, the noise has been ranked among the important risk factors in the printing industries. The purpose of this study is to design a tool for Assessing the level of knowledge, attitude and practice of the printing industry workers in the field of hearing protection and determining its validity and reliability. Methods: To design a questionnaire, 35 questions were pr...
Nearing 30 years since its introduction, 3D printing technology is set to revolutionize research and teaching laboratories. This feature encompasses the history of 3D printing, reviews various printing methods, and presents current applications. The authors offer an appraisal of the future direction and impact this technology will have on laboratory settings as 3D printers become more accessible.
The present paper studies the chromaticity gamut of multi-color printing processes. Heptatone (7color) printing – the most promising variant of multi-color printing – offers a significantly larger gamut than a conventional CMYK printing process, approaching CRT and film gamuts. The behavior of the process in the device-independent CIE-XYZ and CIE-L*u*v* colorimetric spaces is explored using the...
A ‘button-shaped’ three-dimensional (3D) radio-frequency identification (RFID) tag combining 3D printing and inkjet printing technologies in fabrication for the first time is proposed. The button shape facilitates the tag’s integration with clothes for the purposes of identification and access control. The proposed tag features a compact size (radius 15 mm, height 7.5 mm) and a good performance...
We present an option for colour image segmentation applied to printing quality assessment in offset lithographic printing by measuring an average ink dot size in halftone pictures. The segmentation is accomplished in two stages through classification of image pixels. In the first stage, rough image segmentation is performed. The results of the first segmentation stage are then utilized to colle...
Background: A lack of information on the overall characteristics of work-related diseases in the printing press industry in Ghana holds back the development of effective disease prevention strategies in the industry. Objective: To identify the commonest disease conditions and factors that influence workers in the printing press industry to visit the hospital. Study design: A prospective descrip...
Screen printing has been the dominant method of thick film deposition because of its low cost. Many experiments in industry have been done and many models of the printing process have been developed since the 1960’s. With a growing need for denser packaging and a drive for higher pin count, screen printing has been refined to yield high resolution prints. However, fine line printing is still co...
The movable type printing press was the great innovation in early modern information technology, but economists have found no evidence of its impact in measures of aggregate productivity or income per person. This paper examines the technology from a new perspective by exploiting city-level data on the establishment of printing presses in 15th century Europe. I find that between 1500 and 1600, ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید