Lead-acid batteries are commonly used as power sources for critical operations in the world. They find application air-traffic control towers, uninterruptible supplies (UPS), railroad crossings, military installations, hospitals, and weapons systems. also known automotive industrial batteries. consist of large amounts lead, sulphuric acid, plastics. The acid is tremendously irritant a carrier s...

In a general fractional factorial design the n levels of each factor are coded by the n-th roots of the unity. This device allows a full generalization to mixed designs of the theory of polynomial indicator function already introduced for binary designs by Fontana and the Authors (2000). Properties of orthogonal arrays and regular fractions are discussed.

In predictive food microbiology, cardinal parameter models are often applied to describe the effect of temperature, pH and/or water activity on the microbial growth rate. To identify the model parameters, full factorial designs are often used, in spite of the high experimental burden and cost related to this method. In this work, the impact of the selected experimental scheme on the estimation ...

When there is interest to study n chemicals using x dose levels each, factorial designs that require x(n) treatment groups have been put forward as one of the valuable statistical approaches for hazard assessment of chemical mixtures. Exemplary applications and cost-efficiency comparisons of full factorial designs and regular fractional factorial designs in toxicity studies can be found in Nesn...

The behaviour of like-charge and unlike-charge second factorial moments in e + e − reactions is discussed. It is argued that Monte Carlo calculation with the help of generators JETSET 7.4 and HERWIG 5.8 points to the conclusion that the only nontrivial cause of intermittency are Bose-Einstein correlations of identical particles. Since the original proposal of Bialas and Peschanski [1], factoria...

Quad Flat No-lead (QFN) presents an excellent example of a complex substrate composed of both ductile (copper) and brittle (plastic molding compound) materials, showing clear trends of reduction in package size and the combination ductile and brittle materials in the same sawing process which creates real challenges in term of sawing quality, blade life and throughput. This paper discussed on t...

The present research includes the safe disposal of lead-acid batteries slag using waste materials such as red mud and fly ash. The aim of this study is to investigate the adsorption of lead removal from lead acid-batteries slag on red mud and fly ash using 2 full factorial design. The combined effects of adsorbent amount, temperature, adsorbent type and leachate solution on the lead removal ads...

The discussion on the extension of existing airports and the construction of new ones has reached a new peak. This paper reviews the literature on the possibility of trading noise for number of aircraft operations in the context of increasing air travel. Moreover, two new laboratory studies are presented, which model two ways of immission reduction: (1) fading out old and loud aircraft at exist...