Toward on-board microchip synthesis of CdSe vs. PbSe nanocrystalline quantum dots as a spectral decoy for protecting space assets

Fabrication of the reaction chamber using silicon carbide. (A) A schematic sketch of the fabrication flow; (B) a photograph of a transparent 6 inch SiC-on-glass wafer; (C) the surface morphology of the SiC film.

Developing a new colorimetric bioassay for iodide determination based on gold supported iridium peroxidase catalysts

A schematic sketch of the colorimetric bioassay for iodide determination based on gold supported iridium peroxidase catalysts.

TIDAL CURRENTS IN CONSTRICTED INLETS

Many inlets along the coastline of North America are deep, wide bays which are connected to the ocean by a short channel of much smaller cross-section. Figure 1 is a schematic sketch of such an inlet. It is usual in these inlets that the tide curve (water surface elevation vs. time) in the bay does not coincide with that in the ocean. The range of variation is discussed by Caldwell (1) in a review of inlets in the United States. In addition, Caldwell classifies this type of inlet as one with an inadequate entrance. This term describes well the engineering problem encountered in most of them. There are high velocities in the entrance channel, usually near periods of slack water, which are inconvenient to navigation. In some instances these velocities combined with local geography constitute a serious hazard to shipping.

The progress in geobotanical mapping for 50 years (1950—2000) in the Laboratory of ecology and geobotany in the Central Siberian Botanical Garden

The history of vegetation mapping of Siberia in the second half of XX century has been presented from compiling of the first regional vegetation maps to creating of survey small-scale maps of large regions. The most significant cartographic works such as Vegetation map of Novosibirsk region (S 1 : 500 000) and Ecological-phytocoenotical map of the South of Siberia (S 1 : 1 000 000) have been characterized. Present state of cartographic study of the territory is reflected at schematic sketch. The tasks and methodological problems of vegetation mapping in the region have been formulated.