In order to obtain the damping and resistance coefficients of a pendulum, we constructed an optical system containing photogate for measuring speed pendulum at lowest point motion. The consisted photoresistor, laser, mechanical body, ball. A 3D printer was used produce body balls various sizes. Furthermore, Arduino automate measurement motion increase precision. We found that coefficient propor...

In laser multiphoton electron extraction spectroscopy (MEES), the photo-charges extracted from a surface by pulsed beam are recorded as function of wavelength. We report first application this to banknotes. Various banknotes different countries, authentic and counterfeit, have been tested. The results indicate that MEES spectra both informative (many peaks) reproducible. allow for clear distinc...

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...

In this work, a new composition of paste based on nanosized nickel oxide (NiO) for jet-based 3D printing has been developed and investigated. The optimal parameters anode with necessary viscosity NiO loading have found by using custom made laboratory printer. Experiments carried out to print two-and three-dimensional test objects the ceramic paste; modes investigated fabricate given shape size ...

Purpose – This paper aims to verify a new method for accurate part manufacturing using a 3D printer. In particular, the direction and position dependence of the printed results are to be verified within the building area. The results of the accomplished experiments are to be used for the computation of new printer adjustments. Design/methodology/approach – Test cubes with a defined edge length ...

A spectral-based six-color printer model was derived in determining the six color separations for an input spectral image that yields the least metameric reproduction relative to the original. Confined by the ink-trapping limitation, the six-color halftone printer modeling effort is a union of ten four-color halftone printer modeling efforts in addition to a four-ink selector. The four-ink sele...

In this paper, we examine the product life cycle in the desktop laser printer industry, from its inception in 1984 through 1996. During this time, the industry experienced a significant degree of innovation, as well as an enormous amount of product introduction and subsequent exit. The relative roles of market structure, innovation, and firm effects are explored in more detail using a multidime...

A critical factor in the preparation of cDNA microarrays is the calibration and adjustment of the array printer to optimize spotting. Here are a couple techniques to help you detect the quality of your print, the proper calibration, and the condition of your printing pins. A simple way to determine the quality of the array spots is to examine the salt deposits remaining after the droplet of pri...