Wear mechanisms of HSS cutting tools pps

... of hob teeth. Wear mechanisms of HSS cutting tools 13 7. Towards better performance of HSS cutting tools 7.1 Improving the HSS material From the demonstrated mechanisms of wear of HSS cutting ... direction of the cracks coincide with the direction of surface finishing. 25 µm Wear mechanisms of HSS cutting tools 5 6. Wear mechanis...

Ngày tải lên: 07/07/2014, 21:21

... the evolution of halophytic species. An important effect of the release of dormancy with the alleviation of salt stress is that it determines the salinity level at the period of seedling development, ... properties from those of glycophytes. Fig.10. The effects of light, CO 2 and ABA (10-5 mol m-3) on stomatal opening on detached epidermis of Commelina communis in the p...

Ngày tải lên: 06/07/2014, 02:20

... structure of the microbial constituents that elicit inflammation, and detailed knowledge of these structures for bacterial pathogens has contributed greatly to our understanding of molecular mechanisms ... that limits the growth and spread of pathogens. Phagocytes appear rapidly at sites of infection in conjunction with the initiation of inflammation. Ingestion of microbes...

Ngày tải lên: 07/07/2014, 04:20

... importance of this structure in pathogenesis. Host Response The inflammatory response of the host is critical for interruption and resolution of the infectious process but also is often responsible ... mechanism of microbial virulence is the ability of some organisms to present the capsule as an apparent self antigen through molecular mimicry. For example, the polysialic acid ca...

Ngày tải lên: 07/07/2014, 04:20

... transmission of this pathogen. Venereally transmitted pathogens may undergo phenotypic variation due to the production of specific factors to facilitate transmission, but shedding of these pathogens ... the formation of infectious foci. In summary, the molecular mechanisms used by pathogens to colonize, invade, infect, and disrupt the host are numerous and diverse. Each phase...

Ngày tải lên: 07/07/2014, 04:20

... of Bag-1 Morpho/AS to JAR cells did not alter the expression of PTEN after the exposure to hypoxia, which would mean that the expression of PTEN, and also that of Bcl-X, was independent of ... development of various obstet- rical complications. Apoptosis is a cascade of events that involves ac- tivation of many genes and synthesis of various pro- teins. The importance o...

Ngày tải lên: 31/10/2012, 15:12

... special requirements of the VUV photolysis of water according to Eq. (1) are related to the formation of high local concentration of hydroxyl radicals (OH . ) and a series of other species (Gonzalez ... presence of semiconductors like titanium dioxide (Hoffmann et al., 1995) or to the Photo-Fenton (Bossmann et al., 1998). In practical application, a considerable disadvantage o...

Ngày tải lên: 05/09/2013, 09:08

... of 2003. The amount of precipitation was 30 mm in total. Figure 2 shows the precipitation record of the studied event (Fig. 2a) and the record of the river flow rate (solid line, Fig. 2b) of ... content with that of aluminum. Aluminum was chosen as a reference because of its naturally high content in soil. In principle, the ratio of their content of the depositions to tha...

Ngày tải lên: 05/09/2013, 09:08

... denitrification’. If some of PAOs can do that, the inhibitory effect of nitrite will be reduced. Hence, the purpose of this study is to examine the effect of anoxic activity of PAOs on reduction of inhibitory ... Mechanism of buffering nitrite inhibition by PAOs Nitrite is a well-known inhibitor of aerobic metabolism of bacteria (Rowe et. al., 1979). Main mechanism of...

Ngày tải lên: 05/09/2013, 09:38

... and Computer Integrated Manufacturing. Printice-Hall, 1987. 2. Yoram Koren: Computer Control of Manufacturing Systems. McGraw-Hill, 1983. 3. Japanese National Research Institute: Mechanical ... bộ CNC xác định. MEL-Master dùng hệ chuyên gia xử lý theo thời gian thực. Bộ mô phỏng làm việc Off-line, giúp cho ngời vận hành quyết định và kiểm tra chế độ gia công tối u. Hệ MEL-Master tiến

Ngày tải lên: 10/12/2013, 13:16