... windows in silica based optical fiber (taken from David R Goff 2002) Figure 1-1 shows the wavelength windows of fiber attenuation for commercial silica based optical fiber The Figure shows the wavelengths, ... advances in optical fibers which effectively extend the third window A source emission wavelength around 1.55 µm corresponds to a fiber absorption minimum and matches the gain of fiber amplifiers ... commercial fiber- optic communication systems came through concurrent development of low attenuation optical fiber and compact GaAs semiconductor lasers In 1978, the first generation fiber- optic...
Ngày tải lên: 14/09/2015, 08:50
... 1) and their thermal properties (Table 1) were analyzed during peak sunshine and over brighthess conditions The type of building material, vertical height and the impact of materials used towards ... fell upon the samples until 6:00pm The mean wind speed obtained was 1.8 m2.s, which indicated calm conditions The maximum ambient temperature was depicted at 41.7°C (5:39pm), whereas the minimum ... comparison between these four materials could not be accomplished as a result of different experimental conditions influenced by the convection and radiation heat transfer Therefore, in order to determine...
Ngày tải lên: 05/09/2013, 15:28
Intake manifold design effect on air fuel mixing and flow for an LPG heavy duty engine
... Prk = ; Prε = 1,3 , and Cµ = 0, 09 , are the constants of the standard model (k, ε) 3.3 Boundary conditions for the manifolds models Simulation tests are carried out in the intake stroke for a...
Ngày tải lên: 05/09/2013, 16:30
Báo cáo " Potential evapotranspiration estimation and its effect on hydrological model response at the Nong Son Basin" doc
... evaporation estimation, in the sense that it is driven by the astronomical rather than the local climate conditions Understanding the surface radiation balance, and how to quantify it, is therefore crucial ... Kirnak, T.H Short, An evapotranspiration model for nursery plants grown in a lysimeter under field conditions, Turk J Agric For 25 (2001) 57 [17] D.R Maidment, Handbook of hydrology, MacGraw-Hill,...
Ngày tải lên: 05/03/2014, 16:20
Báo cáo khoa học: Deficiency in apolipoprotein E has a protective effect on diet-induced nonalcoholic fatty liver disease in mice pot
Ngày tải lên: 05/03/2014, 23:20
Working PaPer SerieS no 1150 / January 2010: Do bank loanS anD creDit StanDarDS have an effect on outPut? a Panel aPProach for the euro area doc
... policy decisions are transmitted to the real side of the economy via its impact on banking sector conditions Monetary policy may a¤ect real economic activity, and ultimately in‡ ation, via its impact ... likely derive from cross-Atlantic di¤erences in the banking and …nancial structures a¤ecting the preconditions underlying the existence of a bank lending channel (i.e the non-substitutability of bank...
Ngày tải lên: 15/03/2014, 10:20
Báo cáo khoa học: Betulinic acid-mediated inhibitory effect on hepatitis B virus by suppression of manganese superoxide dismutase expression pot
... (data not shown) Given the fact that the liver accepts most of the circulating BetA under dietary conditions for subsequent deposition and detoxification as the first target organ for xenobiotics, ... alanine aminotransferase levels Animals were housed in a pathogen-free room under strict barrier conditions All procedures used in dealing with the experimental animals were approved by our institutional...
Ngày tải lên: 16/03/2014, 01:20
Which Aesthetic Has the Greatest Effect on Human Understanding? pdf
Ngày tải lên: 16/03/2014, 18:20
Báo cáo Y học: Extra terminal residues have a profound effect on the folding and solubility of a Plasmodium falciparum sexual stage-specific protein over-expressed in Escherichia coli pptx
... transformed into E coli cells, and the transformants grown, induced and processed under identical conditions (see Materials and methods) The cell pellets were sonicated and the resulting lysates ... factor Xa protease for cleavage All fusion proteins cleaved successfully under identical reaction conditions The stability and solubility of MBP after factor Xa cleavage was found high and identical ... solubilities were inherent in the constructs and could not be modulated by varying the ambient growth conditions DISCUSSION The routine production of recombinant proteins in soluble and biologically...
Ngày tải lên: 23/03/2014, 21:20
Always Leave Home Without It: A Further Investigation of the Credit-Card Effect on Willingness to Pay pptx
... Rank Sum: z 1.42, ns) Third, values in the two congruent conditions are signi®cantly greater than the values in the non-congruent conditions (diagonal cells versus non-diagonal cells; t 2.63, ... premium between the two congruent conditions in Study is not consistent with this prediction Furthermore, given the random assignment across ALWAYS LEAVE HOME 11 conditions, we can presume that ... expiration date, and to write down the last three digits of the credit card number Respondents in both conditions were told that they would have to make the payment by 5PM the next day In a slight deception,...
Ngày tải lên: 29/03/2014, 03:21
Research " Goodwill Acounting Diffrences of the US and UK and Their Effect on Share Prices " pptx
Ngày tải lên: 30/03/2014, 01:20
Báo cáo khoa học: The subcellular localization of vaccinia-related kinase-2 (VRK2) isoforms determines their different effect on p53 stability in tumour cell lines pdf
... The presence of a hydrophobic tail in VRK2A suggests that this isoform might be associated with membranes Cos1 cells were transfected with each of the constructs and the location of the transfected...
Ngày tải lên: 30/03/2014, 11:20
Báo cáo khoa học: Selenium affects biosilica formation in the demosponge Suberites domuncula Effect on gene expression and spicule formation pot
... been incubated for longer than days in the presence of 30 lm silicic acid and 10 lm Fe(III), under conditions described in Experimental procedures A B C D Fig Light microscopic images of primmorphs, ... an indicator As outlined in Experimental procedures, the reaction was performed under controlled conditions, using recombinant silicatein In the absence of the tetraethoxysilane substrate, only ... filaments of the spicules are not homogeneous and, especially intracellularly, are associated with membranes and fibrils, a high-resolution protein analysis of the axial filaments is the only way to...
Ngày tải lên: 30/03/2014, 20:20
Báo cáo khoa học: Redox reaction between amino-(3,4-dihydroxyphenyl)methyl phosphonic acid and dopaquinone is responsible for the apparent inhibitory effect on tyrosinase doc
... spectra were recorded every 40 s Each of the substrates was also tested separately under the same conditions Fig Phosphonic amino acids used in this study Km and Vmax for compound were determined ... was recorded The spectrum of the commercial 3,4-dihydroxybenzaldehyde was taken under the same conditions Polarographic analysis Cathodic voltammetry was performed with a pulse polaro´ graph ... sodium phosphate buffer, pH 6.8, with 0.1 mM of substrates and 69 lg of the enzyme to maintain conditions identical to spectrophotometric assays RESULTS Our screening of phosphonic analogs of...
Ngày tải lên: 31/03/2014, 09:20
báo cáo hóa học: " Prospective evaluation of chronic pain associated with posterior autologous iliac crest bone graft harvest and its effect on postoperative outcome" potx
... J Craniomaxillofac Surg 2000, 28:31-38 Hardy SP, Wilke RC, Doyle JF: Advantages of percutaneous hollow needle technique for iliac bone harvest in alveolar cleft grafting Cleft Palate Craniofac...
Ngày tải lên: 18/06/2014, 18:20