Hydraulic and electro-hydraulic elements in modernization and construction of new control systems of water turbines. The directions of changes in the domestic hydroelectric plants and the positive effects have been presented. The paper describes the hydraulic and electro-hydraulic components used in new control systems, as well as the applying methods.

The pneumatic systems for vehicle safety investigation. The purposefulness as well as necessity of the vehicles safety determination has been exhibited. Moreover, the modern methods for vehicle safety determination were compared with the standard crash tests. It has been emphasized that the significant advantage of the modern pneumatic systems is the fact that with their aid very accurate and repeatable results can be obtained.

Amphibious vehicle with hydrostatic drive for military Special Forces. The amphibious vehicle for military special units has been presented. The important role in this vehicle plays the hydrostatic drive. Individual hydraulic systems and their functions have been described. Results of the vehicle tests in the proving ground have been shown.

Investigation of power supply pressure changes of electrohydraulic servomechanism. There are presented results of laboratory researches carried out on electrohydraulic servomechanism which is working under intensive occurring of dynamic operation states in the paper. The researches aimed to characterize mutual interaction between a servomechanism and a hydraulic power supply.

Hydraulic press for volumetric strain of metals. This paper presents a unique laboratory hydraulic press for testing non-conventional methods of metals and alloys straining. The paper contains a description of structure and working principle of the device hydraulic system, as well as the measurement and control system.

Regelungssysteme der Wasserturbinen mit hydraulischen und elektrohydraulischen Elementen. Es wurden Modernisierungsrichtungen der inländischen Wasserkraftwerke und die positiven Folgen dargestellt. Die hydraulischen und elektrohydraulischen Komponenten, die in Entwicklung der neuen Regelungssysteme verwendet werden, und die Einsatzmethoden wurden genannt.

Pneumatische Testsysteme der Fahrzeugsicherheit. Die Notwendigkeit und die Zweckmäßigkeit der Fahrzeugsicherheitstesten wurden markiert. Die modernen Methoden wurden mit den klassischen Crashtesten verglichen. Das Erlangen von genauen und wiederholbaren Ergebnissen ist ein wichtiger Vorteil der modernen Testsysteme.

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