The delta robot can reach higher speeds than traditional serial-axis machines used in fused filament fabrication 3D printing. However, like serial machines, printers suffer from undesirable vibration at high which degrades the quality of fabricated parts. This has been suppressed using linear model-inversion feedforward control methods filtered B-splines (FBS) approach. techniques FBS approach ...

Using Computational Fluid Dynamics (CFD) technique, the dispersion contours and the exposure rate of Flexographic printing workers to VOCs in a printing department is evaluated. Firstly, VOCs distribution is determined in the printing room due to the existing ventilation system. Through next steps, 4 scenarios for lowering VOCs concentration and its exposure rate to workers are analyzed. Concen...

printing and packaging industries make three phases of solid, liquid and gaseous contaminants which can cause very dangerous problems. the presence of alcohols, inks, and cleaners can result in massive range of industrial pollutants. always respiratory problems, fatigue, dizziness, weakness, abnormal behavior, memory impairment, insomnia, loss of appetite, and impaired vision and hearing and ca...

The advent of three-dimensional printing (3DP) technology has enabled the creation of a tangible and complex 3D object that goes beyond a simple 3D-shaded visualization on a flat monitor. Since the early 2000s, 3DP machines have been used only in hard tissue applications. Recently developed multi-materials for 3DP have been used extensively for a variety of medical applications, such as persona...

The paper presents the results of UV effective irradiance measurements at work stands for sources such as: welding arcs, gas blowpipes, exposure processes, printing machines and insecticide lamps. The irradiance measurements were performed using broad-band instruments with detector heads corrected to the Polish action spectra (erythematous and conjunctivitis). The obtained values of effective i...

Here, we present the use of ethoscopes, which are machines for high-throughput analysis of behavior in Drosophila and other animals. Ethoscopes provide a software and hardware solution that is reproducible and easily scalable. They perform, in real-time, tracking and profiling of behavior by using a supervised machine learning algorithm, are able to deliver behaviorally triggered stimuli to fli...

Digital halftoning is a technique to convert a continuous-tone image into a binary image consisting of black and white dots. It is an important technique for printing machines and printers to output an image with few intensity levels or colors which looks similar to an input image. In this talk I will explain how computational geometry and combinatorial optimization can contribute to digital ha...

The last few years have been characterized by the development of 3D printing technology; in parallel, many analytical techniques proposed for this new technology to favor its and commercialization. In short review, I verify how thermal analysis, which always dealt with, can help technology. Fused deposition modeling (FDM) is not a novel however, considering variety possibility it offers printin...

Within a heterogeneous distributed computing environment, it is necessary to integrate services, such as printing and mail, that are scattered throughout the environment and which perform single logical tasks. This paper discusses a general purpose architecture which provides a framework for designing complex multi-user systems capable of interfacing with these services. The merits of this gene...