Abstract:
The present invention provides a nodular cast iron foundation pile pipe and a method for preparing same, including following steps: (1) preparation before pipe casting: including molten iron preparation, spheroidization and coating spraying on an inner wall of a pipe mold; (2) pipe casting process: including centrifugal casting and pipe drawing; (3) annealing process; (4) finishing process. The present invention further provides the foundation pile pipe manufactured with the above-mentioned method wherein the flange and the foundation pile pipe are integrally cast or welded. In the present invention, the nodular cast iron is used as the material of the foundation pile pipe instead of Q345 steel used in the prior art. As a result, the overall strength is enhanced. The present invention possesses advantages such as corrosion resistance, long service life, low manufacturing cost, low labor intensity, short construction period and being suitable for mechanized construction.
Abstract:
The present invention is directed to novel polypeptides, nucleic acids and related molecules which have an effect on or are related to the cell cycle. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention. Further provided by the present invention are methods for identifying novel compositions which mediate cell cycle bioactivity, and the use of such compositions in diagnosis and treatment of disease.
Abstract:
The present invention relates to an andrographolide derivative of the formula (I), wherein R1, R2 and R3 are same or different substituents selected from hydrogen, substituted or unsubstituted organic acid radicals, inorganic acid radicals, alkyl, aryl or heteroaryl, and at least one of R1, R2 and R3 is R-lipoic acid, S-lipoic acid or a mixture thereof, or corresponding dihydrolipoic acids thereof, or N-acetylcysteine radical. The derivative has good antitumor effect, can induce apoptosis of tumor cells, can directly kill Gram-positive bacteria (staphylococcus aureus) and drug resistance bacteria (MRSA5676 and MRSA5677), can inhibit the QS-system of Gram-negative bacteria (Pseudomonas aeruginosa), can inhibit and destroy the formation of biofilm of Pseudomonas aeruginosa; and exhibits significant hypoglycemic effect, so that it can be used in manufacture of medicaments for treatment of cancers, inflammation, diabetes, and bacterial and viral infections.