Force distribution in a granular medium under dynamic loading.

Force distribution in a granular medium subjected to an impulse loading is investigated in experiment and computer simulations. An experimental technique is developed to measure forces acting on individual grains at the bottom of the granular sample consisting of steel balls. Discrete element method simulation also is performed under conditions mimicking those in experiment.

Dosimetry at an interim storage for spent nuclear fuel.

The Czech nuclear power plant Dukovany started its operation in 1985. All fuel spent from 1985 up to the end of 2005 is stored at a dry interim storage, which was designed for 60 CASTOR-440/84 casks. Each of these casks can accommodate 84 fuel assemblies from VVER 440 reactors.

Branching elements for optical data buses.

Asymmetric 4-port couplers and star couplers with 60 ports for multimode fibers are described. The power variations in the output fibers over a -40-+120 degrees C temperature range are reported as is the insertion loss. The optimum output coupling required for minimum path attenuation is computed for a T-bus with symmetric and asymmetric couplers.

Haptoglobin level in haemophiliacs after administration of pooled cold precipitated antihaemophilic globulin. Preliminary report.

Unlike compatible haemophiliacs, incompatible haemophiliacs developed a decrease in haptoglobin level after administration of pooled cryoprecipitate. The effect is attributed to haemolysis following intravascular agglutination and intravascular coagulation elicited by the cryoprecipitate in incompatible patients.

[Results in the management of transfusion preparations in the West Bohemian Region during 1973].

The authors present an analysis of the use of transfusion preparations in 1973 in the West Bohemian region, where satisfactory results were obtained due to the cooperation of the regional commission for expedient pharmacotherapy, specialists of different branches, heads of blood transfusion departments and doctors working in these departments. A more objective approach to indications for transfusion is manifested by a reduced administration of whole blood (by 15%), reduced administration of locally produced plasma (by11%), increased administration of erythrocyte mass (by 21%) and special transfusion preparations (by 35%) and thus a reduction of expenditure on blood per bed per day in all district institutes of national health in the West Bohemian region.