properties of ethanol ethyl alcohol

... All of the chemical reagents used in the experiment were of analytical grade A typical synthesis process for the preparation of WO3 nanorods was as follows: 1.5 g of Na2WO4Á2H2O and 2.5 g of Na2SO4 ... with the result of XRD 3.2 Gas sensing properties A lot of studies on the fabrication of metal oxide sensors for many gases have been reported in the literature However, most of studies focused ... sensing characteristic of the WO3 nanorods at temperatures of 370–500 8C with ethanol concentration of 1000 ppm is shown in Fig 4(a), which reveals that the sensitivity of the sensors was greatly...

Ngày tải lên: 05/05/2014, 15:27

... Structure of alcohol R O H H bond H R H O O H O H bond H O H H R H O R Bonding and Solubility Hydrogen bonding raises the boiling point of alcohols • Ethanol: 78C >Chloroethane( ... -88.6C The longer the carbon chain in an alcohol is, the lower the solubility in polar solvents and the higher the solubility in nonpolar solvents Methanol Ethanol Propanol infinite solubility in...

Ngày tải lên: 28/05/2016, 11:30

... operations Chapter 7- Properties of Convolution 127 2.0 a Original signal Amplitude 1.0 0.0 -1.0 FIGURE 7-3 Example of calculus-like operations The signal in (b) is the first difference of the signal ... curve of the form: sin(x)/(x) , is used to separate one band of frequencies from another c Sinc 0.3 Amplitude Amplitude 0.3 0.2 0.1 0.0 -0.1 -20 -15 -10 Sample number Chapter 7- Properties of Convolution ... affect any of the output signal values As shown by the examples in Fig 7-6, the impulse response of a causal system must have a value of zero for all negative numbered samples Think of this from...

Ngày tải lên: 13/09/2012, 09:49

... concentration of ethanol in HepG2 cells [19] Int J Med Sci 2007, 32 Figure Functional genomics of low concentrations of ethanol in HepG2 cells (A) Reported interactions of each ethanol- regulated ... ethanol metabolizing enzyme, demonstrated that high concentrations of ethanol (100 mM) induced the expression of genes involved in the metabolism of ethanol [16] In addition, the metabolism of ... Bode JC Activation of the innate immune system and alcoholic liver disease: effects of ethanol per se or enhanced intestinal translocation of bacterial toxins induced by ethanol? Alcohol Clin Exp...

Ngày tải lên: 31/10/2012, 15:28

... mRNA levels of NFκB after hr of ethanol exposure, suggests a regulatory role of this pathway in ethanol- induced apoptosis Taking these data together, we propose a regulatory mechanism of ethanol- induced ... (# p < 0.05) Ethanol regulates the expression of genes of the Fas signaling cascade To further investigate the role of ethanol- induced apoptosis on gene expression, the mRNA level of Fas receptor, ... mechanism of ethanol- induced apoptosis Figure Effect of inhibitors of G-protein coupled receptors (GPCR) on ethanol- induced apoptosis in HepG2 cells Results are expressed as percent of control...

Ngày tải lên: 31/10/2012, 15:37

... summary of the independent parameters the modified foaming apparatus FOAMING PROPER TIES used far experi- Nature Fixed Diameter Porosity Volume Volume Mass of of sparging disc of sparging disc of ... = Tw Did = = percent of gas initially in 70 ml of foam (gas Flow Rate) - ml/min of nitrogen time to fill the column with foam volume of liquid in the foam initially volume of liquid drained from ... characteristics of protein i.e the foaming capacity of protein and the stability and strength of the foam Foaming ability i.e Gi denotes the amount of gas retained in the foam reflecting the potential of...

Ngày tải lên: 16/12/2012, 15:10

... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical ... measure of conductance The analyses, done in the laboratory of Technical Physics of the Polytechnic of Bari, were performed on some samples of calcarenite sandstone and calcareous stone of Fasano ... typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi of Matera," and a masonry made with dry calcareous stones of Fasano,...

Ngày tải lên: 05/09/2013, 14:58

... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... Increasing time of heatsetting had effect on tensile properties of PLA at varying times of 30s to 90s at temperature of 130°C Optimum effect on tensile properties occurred at times of 30 – 45s PLA ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...

Ngày tải lên: 05/09/2013, 16:10

... pH Because most of the chemical and biochemical reaction are influenced by the pH it is of great practical importance The adverse affect of most of the acids appear below and of alkalis above ... quality criteria of an aquatic system In the system where rate of respiration and organic decomposition are high ,the DO values remain lower than those of system where the rate of photosynthesis ... growth and activities of microorganism 3.6 Biological Oxygen demand It has been used as a measure of the amount of organic materialism an aquatic solution which support the growth of microorganism...

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 08/10/2013, 20:20

... owner of the derivative security should exercise it If he does not, then the seller of the security can immediately consume f Vk ! , + r IE Vk+1jF k ! and still maintain the hedge 6.2 Proofs of ... maintain the hedge 6.2 Proofs of the Properties Let fGk gn=0 be a sequence of non-negative random variables such that each Gk is F k -measurable k Define Tk to be the set of all stopping times satisfying ... Lemma 2.18 Proof: Take Vk  Gk for every k Tk to be the constant k Lemma 2.19 The process f1 + r,k Vk gn=0 is a supermartingale k Proof: Let  attain the maximum in the definition of Vk+1 , i.e.,...

Ngày tải lên: 18/10/2013, 03:20

... operations the problem often arises of separating or purifying by distillation a mixture of two or more liquids, all of which are present in appreciable amounts The separation of such a mixture into ... condensations of the vapor and partial vaporizations of the condensate and is similar in effect to a number of separate distillations The column consists of a long vertical tube or series of bulb through ... flavor and aroma They must contain not less than s of 1% of alcohol Their alcoholic content generally ranges between and 6% by volume A gallon of beer or ale weighs 83/4 lbs Beer and ale are similar,...

Ngày tải lên: 25/10/2013, 09:20

... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are responsible ... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σx z More generally, the stress state of the jammed grain packing is assumed to be of the form σx...

Ngày tải lên: 01/11/2013, 08:20

... Formaldehyde increases infectivity Viruses DNA or RNA  Shell of protein (capsid) surrounding nucleic acid   Classification on basis of nucleic acid  DNA viruses: eg Herpes simplex virus (HSV) ... body Varicella zoster virus (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria  Unicellular,  DNA and RNA  Binary  No prokaryotes ... (transfer of plasmid DNA) Important bacterial products 1: extracellular polysaccharide  CAPSULE condensed, well defined layer closely surrounding the cell contributes to invasiveness of pathogenic...

Ngày tải lên: 12/12/2013, 17:15

Ngày tải lên: 17/12/2013, 15:19

... and 2.8(f) These may be thought of as the absence of a plane of atoms (intrinsic stacking faults) or the insertion of rows of atoms that disturb the arrangement of atoms (extrinsic stacking faults) ... example of volume defects is presented in Fig 2.9 This shows MnS inclusions in an A707 steel Another example of a volume defect is presented in Fig 1.16(d) This shows evidence of $1–2 vol % of porosity ... approximately 0.3–0.5 of the melting temperature in degrees Kelvin Since the evolution of microstructure is often controlled by diffusion processes, a brief introduction to elementary aspects of diffusion...

Ngày tải lên: 23/12/2013, 00:15

... mechanical properties of materials It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabilities of any single ... macroscopic level of understanding of structure [Figs 16(a)–(d)] They are often unaware of the atomic and microstructural constituents that can affect the mechanical behavior of materials and of the role ... Appreciation is also extended to Prof Tom Eager and Prof Nam Suh of MIT for inviting me to spend a sabbatical year as Visiting Martin Luther King Professor in the departments of Materials Science and Engineering...

Ngày tải lên: 23/12/2013, 00:15

... University of Michigan, Ann Arbor He has held visiting positions at the University of California, Santa Barbara and the University of Tokyo He is the author of over 250 technical papers and of seven ... that allow modifications of electronic properties; use of alloys, quantum wells, strain and polar charge are discussed; iii) electron (hole) transport and optical properties of semiconductors and ... Structure of the electronic device Structure of the optoelectronic device Desired OEIC Substrate APPROACH Growth of the optoelectronic device structure Substrate Mask a portion of the layer Regrowth of...

Ngày tải lên: 24/01/2014, 17:34

... sub-domain (item 1: ‘‘How often does your child have a lot of fun?’’ and item 4: ‘‘How often does your child feel happy?’’) The items of the SPS sub-domain Psychometric properties of the CHIP-CE composed ... discussion of the impact of ADHD on QoL as measured by the CHIP-CE can be found elsewhere (Escobar et al 2005, 2010) Internal psychometric properties of the CHIP-CE Missing values The proportion of CHIP-CE ... sub-domains of the CHIP-CE versus ADHD-RS total score were low (\0.4) (e.g., CHIP-CE The objective of this combined analysis was to evaluate the psychometric properties of the CHIP-CE in a sample of children...

Ngày tải lên: 12/02/2014, 19:20