Effect of tunneling current on the growth of silicon islands on si(111) surfaces with a scanning tunneling microscope

... late-stage after the creation of islands with the STM, the accumulation of silicon atoms on the tip apex wasgrowth rate was about three times lower than the early-stage growth rate and was almost ... 1999; accepted for publication 15 November 1999 Abstract The early-stage growth rate of a silicon island on a Si(111) surface at the center of the in...

Ngày tải lên: 16/03/2014, 15:32

... is the lipid bilayer of the bacterial membrane. The very high anti- microbial activity of GS14 against the cell wall-less bacteria A. laidlawii as compared to various conventional bacteria confirms ... studies of the interaction of GS and its analogs with bacterial cells that the destruction of the integrity of the lipid bilayer of the inner membrane is the...

Ngày tải lên: 21/02/2014, 01:21

... the mean number of parasites when treated with 1μg mAb/ml. Anti-CSP-mAb had contradictory effect depending on concentration and although mAb at lower concentration seems to have a stimulatory ... falciparum 3D7 clone. Concentration of DNA was determined by spectrophotometric analysis of optical density at 260nm (GeneQuant, Pharmacia) and standard DNA solutions were pre...

Ngày tải lên: 02/11/2012, 10:14

... solutions. The initial concentration of the solution being irradiated was also found to have significant effects on the rate of pollutant degradation as well as the kind and concentration of ... 2001). The dosage of H 2 O 2 in the solution has a remarkable effect on the rate of degradation of the target pollutant. When the initial H 2 O 2 concentra...

Ngày tải lên: 05/09/2013, 09:08

... as 1.3-1.7 million tons per year (Thai Tapioca starch Association, 2005). The cassava processing industry produces solid residues known as “pulp”. Cassava pulp contains a large amount of carbohydrate ... (FAO and Agriculture Organization of the United Nations). (1987). Soil management:Compost production and use in tropical and subtropical environments. FAO and Agriculture orga...

Ngày tải lên: 05/09/2013, 09:08

... of solar stills to optimize the design by examining the effect of climatic, operational and design parameters on its performance. One of the most important of the operational parameters that ... covers approximately 70% of the earth's surface, supplies of potable water are rapidly disappearing. This is because only 0.62% of the available water is in a f...

Ngày tải lên: 05/09/2013, 16:10

Ngày tải lên: 12/01/2014, 22:06

... the aggregation and particle growth. In addition, the size distribution of the annealed particles was larger than that of the as-prepared samples. Figure 2 shows the XRD patterns of the as-prepared ... 120°C on the heat flow [21]. The broad peak on the DSC trace in the FePt nanoparticles suggests that there was no such transition in the FePt nanoparticles u...

Ngày tải lên: 13/02/2014, 03:20

... examined to determine the roles of these DHSs on the transcription of Ig-b gene and on the mainten- ance of the active chromatin state. Results Generation of DT40/Cre cells with a long deletion in ... genes, and one in the downstream region of the GH gene. Transcriptional enhancing activity, as determined by transient transfection, was associated with DHSs in...

Ngày tải lên: 19/02/2014, 16:20

... "education" variables in aggregate production functions and of the problems associated with the measurement of such variables and with the specification and esti- mation of models that use them. ... Labor: total man-hours. Skill: Occupational mix-annual average income predicted for the partic- ular labor force on the basis of its occupational mix and national...

Ngày tải lên: 06/03/2014, 21:20