Báo cáo vật lý: "Structural and Dielectric Properties of the Mn-Doped BaO-Nd2O3-4TiO2 System" ppt

... sample, the total capacitance comprises the capacitance of the grain and air in the pores. It is well known that the capacitance of air is very much less than that of the grains. 17 Therefore, the ... srimala@eng.usm.my Abstract: The effect of the Nd 2 O 3 and TiO 2 ratios on the microstructure, dielectric properties and quality factor (Q.f r ) of...

Ngày tải lên: 07/08/2014, 14:20

... to enhance the interaction between the clay and the polymer. 9 The surface of the MMT is commonly modified with a cation exchange technique to expand the basal spacing and make the layered ... agent can further expand the d-spacing of the OMMT, which could favour the intercalation and exfoliation of silane-treated OMMT in the E matrix. It is also believe t...

Ngày tải lên: 07/08/2014, 14:20

... and carried out the experiments and wrote the first draft of the manuscript. JHA analyzed the properties and helped draft the manuscript. KNH and KSH detailed the original idea and modified the ... 7:26 http://www.nanoscalereslett.com/content/7/1/26 Page 7 of 7 The influence of the substrate temperatures on the sur- face morphology of the films was in...

Ngày tải lên: 20/06/2014, 21:20

... agreement with the results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite. XPS results provide the additional evidence for the successful doping ... (AgNPs) [31]. The exact antibacterial action of AgNPs is not comple- tely understood [32]. On the other hand in the litera- ture, the studies on...

Ngày tải lên: 20/06/2014, 23:20

... studied the growth angle effect of the films for optical properties. The thickness of the ZnO thin films was c heck ed by FE- SEM and was fixed at 100 nm. Three growth angles (0°, 15°, and 30°) of the ... check the growth a ngles of ZnO films, controlled a t 0°, 15°, and 30°, and to measure the thick- ness of the film. The film thickness was fixed at 100 n...

Ngày tải lên: 21/06/2014, 17:20

... “Gurum” and is semi-cultivated in the beach of the Nile River in the north of Sudan. The green parts of the plant are used as animal feeds, the seeds are used as a masticatory article and the residue ... as a source of heat energy for cooking. 7 Due to the growth of the importance of oilseeds in the national economy of Sudan, the high demand to loo...

Ngày tải lên: 07/08/2014, 14:20

... decrease in the interactions between ketones and alkanols. The subsequent formation of new hydrogen bonds between the proton acceptor oxygen atoms of the group of DMF and the proton of the – OH ... explanation of the behaviour of these mixtures has been suggested. The mixing of DMF with 1-alknaols causes the dissociation of the hydrogen-bonded stru...

Ngày tải lên: 07/08/2014, 14:20

... transmittance of Si as active medium in the far red region of 720–750 nm. This paper reports the design and simulation of the transmissivity of single and multilayer coatings; and also reports the ... C Y B = (10) Where Y is the optical admittance and B and C are the total magnetic and total electric amplitude of the light propagation in the mediu...

Ngày tải lên: 07/08/2014, 14:20

... spectrophotometric methods. Because the enzymatic activity of PRTFDC1 towards hypoxanthine and guanine is only 0.26% and 0.09%, respectively, of the activity of HPRT, the role of the PRTFDC1 in purine metabolism ... II. The hood domain is mainly built up by residues from the C-terminus and consists of a two-stranded anti-parallel b-sheet composed of b2 and b9...

Ngày tải lên: 15/02/2014, 01:20

... parts of the N-terminal fragment and ⁄ or the second cassette; AB DC EF Fig. 5. Effects of point mutation of the WalkerA and B motifs of the AAA-cassettes of Pex6p on the morphological appearance of ... unknown. In this study we mapped the mutual binding sites and assayed the effects of deletion and point mutations in Pex1p and Pex6p for the interaction...

Ngày tải lên: 07/03/2014, 16:20