Impact of Excessive Stocks in Process of Bearing Stock Optimization Using Branch and Bound Method
Supply process is one of major priorities for each manufacturing plant. To produce quality products with low prices is an advantage in competition on the market. A prerequisite for such a state is to minimize prices of production inputs, which can be achieved by stock optimizing. Presented contribution on specific example illustrates discrete optimization process on principles of Branch & Bound, which defines the input, and optimized parameters of initial stock of bearings in selected companies operating on Slovak market. In conclusion, the impact of optimized solutions is given and highlights the need for optimization.
Laserowe modyfikowanie materiałów polimerowych. Cz. I. Fizyczne podstawy działania i kryteria doboru laserów
On the basis of literature review the fundamentals of lasers' operation were discussed (Fig. 1 and 2). The general classification of lasers (Table 3, Fig. 3) and the principles of action of two-, three- and four-level lasers (Fig. 4 and 5) were presented. Selected phenomena going in the materials as the results of laser irradiation were described, among others linear and non-linear absorption. The significance of absorption coefficient and laser light reflection coefficient in the processes of modifications of surface layers (WW) of polymeric materials has been stressed (Table 1, Fig. 6). Basic criteria of selection of lasers suitable for this application were given. Possibilities and limitations of lasers in modification of polymeric materials' surface layers have been marked.
Excimer laser technology
Introductory Remarks.- Fundamentals.- Some Fundamentals of Laser Physics.- Principles of Excimer Lasers.- Design and Technology of Excimer Lasers.- High-Repetition-Rate and High-Power Lasers.- High-Energy Lasers.- Excimer Lasers for Microlithography.- Laser Beam Characterization.- Optical Coatings for Excimer Laser Applications.- Small Structures with Large Excimer Lasers.- Historical Review of Excimer Laser Development.- Applications.- Overview.- Ablation.- Micro-Machining.- Via Drilling.- Micro-Processing of Borosilicate Glass and Polymers.- F2-Laser Microfabrication for Photonics and Biophotonics.- Nano-Structuring with Femtosecond Excimer Laser Pulses.- Physical Aspects of Ultra-Fast UV Laser Transfer.- Microlithography.- TFT Annealing.- Fiber Bragg Gratings.- Marking.- Activation and Metallization of Dielectrics.- Excimer-Laser Assisted Deposition of Carbon and Boron Nitride-Based High-Temperature Superconducting Films.- Combustion Analysis.- Medical Applications of Excimer Lasers.- High-Intensity Applications of Excimer Lasers.- High-Repetition-Rate Applications of Excimer Lasers.- New Frontiers: Extreme-Ultraviolet (EUV) Technology at 13.5 nm.- Trends in Worldwide Excimer Laser Sales.