Updated Characteristics of Torrential Pools

Power Technology and Engineering - Advanced methods for determining the hydrological and geomorphological characteristics of torrential pools, which are important for the design of reliable and...     

Study of Options for Optimization of the Configuration of Hydraulic Structures in the Coastal Zone of Nuclear Power Plants by Methods of Numerical Hydrothermal Simulation

Results of numerical hydrothermal simulation of the thermal regimes in the design of the external cooling systems of the Akkuyu nuclear power plant (Turkey     

Numerical investigations for solution of hydraulic problems

Basic trends in numerical modeling are presented.     

Consideration of the intraseasonal variation of the probability of maximum discharges

Conclusions Consideration of the time factor when calculating annual variations of equiprobable discharges performed on the basis of the multiflood method can effect a substantial economy in the construction and operation of hydrostations without exceeding the standard permissible degree of risk of destruction of the structure by water overflowing the channel or reservior. The expenditures needed for additional design developments will amount to a negligible fraction of the savings obtained.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 1, pp. 27–30, January, 1985.     

Current state of the sponge fauna (Porifera: Lubomirskiidae) of Lake Baikal: Sponge disease and the problem of conservation of diversity

The spatial distribution of healthy and diseased sponges in Lake Baikal was investigated. The endemic sponges were studied in May ? June 2015 at 11 transects within the depth range of 0 to 40 m. More than 500 sponge specimens were collected, and 29 taxa including 12 species and 17 morphospecies (sp. taxa) were identified. Among the 29 taxa, only B. martinsoni specimens and 14 morphospecies were healthy, whereas specimens of the other 11 species and 3 morphospecies were diseased, making up 35% of the total number of specimens (512). The different body forms of sponge found among the specimens were encrusting (66%), globulous (21%), and branched (13%). Sponges with necrosis signs, discolored specimens or covered with violet film or brown spots, were found in all transects under study (37 stations of 68). The percent cover of the bottom (per m²) by various body forms of sponges was evaluated with a sponge faunal state assessment test. Changes in the diversity and abundance of sponges due to their disease may jeopardize the functioning of the entire ecosystem of Lake Baikal which is a World Heritage Site. This baseline data on patterns of sponges, including their spatial distribution and percent cover, will be utilized to support future management and monitoring of Lake Baikal. Data on the current state of Baikal endemic sponge fauna are essential for understanding the causes and prognosis of disease processes of freshwater sponges.     

Numerical modeling of a breach wave through the dam at the Krasnodar reservoir

Variational analyses of a breach wave through the pressure front of the Krasnodar hydroproject are conducted using modern approved procedures.