Reservoir displaying features and genesis for low resistivity oil zones of Dongpu sag;

This experiment was to carry on a foundational research on Enteromorpha prolifera by 3 aspects, including ecological impacts on growth and reproduction, microscopic characteristics of the development process, and ultrastructure of mature body cell.

Based on the study of microscopic characteristic, mineral composition, carbon and sulfur distribution, and ignition loss, the feasibility of separating and utilizing various components of fly ash was discussed experimentally and theoretically by means of screen and high gradient magnetic separation.

Objective: To study the microscopic characteristics of the roots, stems and leaves of wild bupleurum scorzonerifolium which grows in the Heilongjiang province, Jiamusi region.

Method: Characters of crude drugs, microscopic characteristic as well as UV spectrum of the herb were studied.

RESULTS The unknown powders had the same microscopic character with Dysosma pleiantha(Hance) Woodson,and the same chromatograms with reference substance of Dysosma pleiantha(Hance) Woodson reference substance and standard reference substances of kaempferol and podophylloto.

A comparison between them in their shapes ,properties and microscopic characters shows that Heterosmilax japonica kunth and Heterosmilax yunnaneensis Gagnep of the same category are similar on the whole while Smilax glabra Roxb of another category is quite different.

Methods:Macroscopical identification;microscopic character and TLC method were carried out.

In connection with the more various shams of Morinda officinalis rushing into the market, this article means to give a method to differentiate them through their proper characters and microscopic characters.

Conclusion Ophioglossum vulgatum is worth of exploitation and utilization as a herbal medicine,and its descriptions and microscopic characters have identification value.