Each year, millions of tons of non-ferrous scrap metal are discarded in the US. This metal is wasted due to a lack of proper recovery methods. Recent developments in spectroscopic technology have made it possible to identify the waste composition of scrap metal in real-time. This has opened the door for high-speed automated metal sortation and recovery, especially for the recovery of high value precious metals, such as titanium, nickel, cobalt, molybdenum and tantalum. Automated sortation systems typically consist of three main phases: (i) Feeding of material, (ii) Composition identification, and (iii) Physical separation. Due to their low volume and industry fragmentation, high-strength precious metal chips usually come in the form of chips smaller than 10 mm. Therefore it is extremely difficult to feed metal chips individually into the sorting system. At CR3, a new feeding mechanism was invented and developed in order to provide single layer feeding of small metal chips. A laboratory-scale prototype was built and proven to be feasible, scalable and reliable. A model was developed to predict the output of feeding variables based on initial input parameters. An operation window of the process was also defined for various metal chip resources. These will be presented, reviewed and discussed in the following paper.

The diploma thesis analyses the level of nutrition of dairy cattle of a particular company and looks at factors that influences milk production. Under the operating conditions of this particular company is evaluated: the quality of bulk feed, the composition of feed diet in terms of required amounts of nutrients and energy for production levels and compared the recommended values.The thesis assesses feeding technique, housing technology and hygiene of obtaining milk. The production and health of dairy cattle breeding over the course of one year is depicted. The work also focuses on evaluating the basic economic indicators of milk production.

The diploma thesis deals with the study of factors that influence the production of milk in terms of nutrition. On the given farm the standart of nutrition is evaluated on the basis of the composition of the feeding diet and optimal security needs nutrients and energy in relation to the desired production and the recommended values. The feeding technique, the quality of feed composition and feed rations are evaluated on the given farm, too. The work also focused on evaluating the basic economic indicators of milk production.

This thesis analyzes the operating characteristics of milk production. The work was developed in agricultural cooperatives of Zemědělské družstvo Podkleťan Křemže. The agricultural holding had been in assessment of dairy cattle nutrition, feeding techniques, quality of roughages, composition of the diet and comparison of economic indicators in dairy production. The quality of roughages was performed by using the fermentation process, and the fodder was subsequently classified into different classes. The composition of the diet was assessed with recommended values depending on the energy need and nutrient requirements. The reproductive performance was compared with data on total population. The economic factors were assessed in connection with yield and cost of farming.

The assessment of the level of nutrition of dairy cattle in relation to their milk pruduction was carried out under operating conditions. The focus was on the quality of the roughage feed, the feeding technique, the contents of the diet and the supply of nutrients. On the basis of operating and economic indicators, the milk production costs as well as an overall evaluation summing the individual observed periods have been calculated. The results of the observation of the level of nutrition over a three-year period indicate that the feed rations are prepared according to the optimal standards. In the observed periods, first quality* corn silage and first or second quality** corn silage was always used. The average efficiency of a cow reached 7 000 kg of milk per year. The average cost of one litre of thus produced milk was 9,30 CZK in an average day, and the average sum of money needed came in at 138,37 CZK.