floe process of gas nitriding

... the bottom of the payzone (Mahmoud and Rao, 2007) The schematic Drawing of GAGD process has been shown in Figure Figure 1—Schematic Drawing of GAGD process (Rao, 2012) In the GAGD process, the ... compositions Also, the selection process considers the availability of specific gas for injection CO2 is more favorable for injection than other gases because of its lower minimum miscibility ... recovery of about (5–15)% of OIP (Lake et al., 1992) The selection criterion of gas injection type depends on whether it is miscible or immiscible, depth, pressure, and temperature of formation,...

Ngày tải lên: 25/09/2016, 19:37

... have initiated the development of the Gas- Assisted Gravity Drainage (GAGD) process Unlike WAG, the GAGD process takes advantage of the natural segregation of injected gas from crude oil in the reservoir ... U.S requires the development of new and more efficient gas injection processes that would overcome the limitations of the WAG process Since WAG process is the dominant gas injection method, its ... viscosity of gases injected, whether CO or hydrocarbons, is generally less than onetenth of that of the oil at reservoir conditions making mobility control one of the biggest factors in a successful gas...

Ngày tải lên: 25/09/2016, 19:50

... Calorific Value of coal = 14840 kJ/kg Carbon fraction of coal = 0.849948 Carbon fraction of natural gas = 0.75 Combustion efficiency of coal = 26% Combustion efficiency of natural gas = 80% Gas Turbine: ... HRSG, mg is the mass of gas (kg), hg is the enthalpy of gas at the inlet to the HRSG (kJ/kg), hstk is the enthalpy of gas at the stack conditions (kJ/kg), ms is the mass of steam generated in ... the work loss factor due to mixing of cooling air with hot ( gas in the gas turbine, hgt , g ) in ( and hgt , g ) out is the enthalpy of gas in and out of the gas turbine (kJ/kg), respectively...

Ngày tải lên: 05/09/2013, 15:28

... has two atoms of hydrogen and one of oxygen combined together Similarly, methane gas, which forms the main part of natural gas, is made up of one atoms of carbon and four atoms of hydrogen So ... between the number of molecules and the volume of gases, the equation shows the volumes of gases involved So, FIGURE 2.4 Combustion of methane 18 Combustion FIGURE 2.5 The volumes of gases involved ... 2.06 m3 of oxygen required to burn m3 of natural gas, we needed 9.8 m3 of air The difference, 9.8 – 2.06 ¼ 7.74 m3, is nitrogen So, when m3 of natural gas is burned, the total volume of gases which...

Ngày tải lên: 16/02/2014, 07:20

... analysis The analysis of the microarray results presented in Table required the use of an arbitrary ‘cut-off’ value for level of gene expression, an approach that introduces an element of bias into the ... expression profile of cells expressing the VV-II mutant form of STAT2 was more similar to that of U6A cells than that of U6A-2 cells (Level 1) IFN treatment led to the further segregation of the sample ... number of genes in U6A and U6A-2 cells, IFN-treated U6A-VV-II cells showed the down-regulation of a substantially larger subset of genes Identification and characterization of a subset of ISGF3-independent...

Ngày tải lên: 19/02/2014, 07:20

... using the purified recombinant protein, the conversion of reagents and products of the exopeptidasecatalyzed hydrolysis of Met1 and cyclization of Gln1 to pyroglutamyl were monitored at different ... of saturated sinapinic acid in the same solvent of the matrix, and 0.5 lL of the mixture was immediately applied to a sample probe spot Protein expression Cyclization reaction as a function of ... and expressing it as the fraction of hydrolyzed (Met1)-ONC (M23L) Figure shows the results of the characterization of the hydrolysis reaction as a function of guanidinium chloride concentration...

Ngày tải lên: 19/02/2014, 12:20

... 4, lg of GAPDH ($ 0.08 nmol) and 0.08 lg of CP12 ($ 0.08 nmol) were mixed and lg of the mixture was analyzed In lane 2, 38 lg of the K128A mutant and lg of CP12 were mixed and about 10 lg of the ... of GAPDH, one dimer of PRK and one molecule of CP12) essential to the formation of the native complex by dimerization of this unit [29] Second, we have previously shown that the association of ... least twofold), even though it was not possible to have an accurate estimation of its value due to limitations of the spectrophotometer (standard errors of 20%) The catalytic rate constants of these...

Ngày tải lên: 19/02/2014, 16:20

... concentrations of individual components were varied as indicated for the determination of Mg2+ and pH dependent rAsPPase activity The amount of Pi liberated from the hydrolysis of PPi during the course of ... presence of increasing concentrations of inhibitors for 10 days, and the number of molting larvae was determined Molting was manifested by shedding of the L3 cuticle Results Identification of cDNA ... molting process of A suum L3 to L4 in vitro, virtually none had been characterized in relation to the actual mechanism of the molting process in this roundworm [56] The basic structure of the...

Ngày tải lên: 20/02/2014, 11:20

... study of problem solving action and report: I) the collected of data on problem solving and talk about problem solving, 2) development of a process model of these behaviors, and 3) use of coding ... problem solving from a record of the problem solving report and a record of moves made Then, we use this extracted trace to evaluate our model of the role of point of view in problem solving SUMMARY ... "el~mlnatAon of alternat£voo" arll~Nnt etruoture The5 %a, 5hAm " p r q i t A o a r l u a e n t " 18 used 50 el~aAnaSe one oF 5he alternatives, leav£ng only one 50 5eke t h i n the FoOUSlL~ll eFFeot oF...

Ngày tải lên: 21/02/2014, 20:20

... hence the rate of accumulation of component i in V is Rate of change of d moles of compo- = dt nent i in V np φ V xij ρj Sj dV (2.1.5) j=1 Convection Terms Part of the accumulation of component ... of the porous medium bounded by a surface, S(t) A material balance on component i in the control volume can be stated as Rate of change of amount of component i in V (t) = Net rate of inflow of ... in the presentation of the important ideas Much of the material in this book that describes flow of gas/ oil mixtures follows from the work of an exceptionally talented group of graduate students:...

Ngày tải lên: 05/03/2014, 18:20

... according to the country of origin, supply and demand for wine according to the type/taste of wine, sales analysis of the high quality wine, analysis of the pricing and positioning of the wine currently ... globalising world of today Internationalisation may be thought of as “a process, an end result or a way of thinking” (Albaum, Duerr, Strandkov, 2004, p.5) Internationalisation of a firm means that ... witnessed a vast amount of research of the internationalisation process of the firm (Johanson, Vahlne, 1990, p.11), which is not surprising, considering the importance of the international trade...

Ngày tải lên: 08/03/2014, 04:22

... network of interdependent points of minimal grammatical contrast, called systems Each of these systems defines a collection of alternatives called grammatical features The semantic interface of the ... conceptual point of view to keep apart the three levels of representation involved here: ET-D IS, UM~, and a description of the German sentence in SPL The basic form of the translation process is to ... challenging aspect of this translation process The translation process is achieved by employing three principal levels of transfer, which are described in detail below The product of this multi-level...

Ngày tải lên: 09/03/2014, 01:20

... L.; & Vargas, L., G., 2009) But this does not mean all of information are useful for our decision making process Overload of information, the motives and bias of providers, remoteness of information ... the year of Minhnhat Company Table 8: Distribution of resources across activities costs pools of Minhnhat Company Table 9: Distribution of resources across activities costs pools in $ of Minhnhat ... decisions This process is depended on capability of each person Therefore, to sum up, managerial decision making process of managers is affected by many factors but in this thesis, only impacts of cost...

Ngày tải lên: 13/03/2014, 14:20

... that part of management accounting which establishes standard and actual cost of operations, processes, departments or product and the analysis of variances, profitability or social use of funds ... 4.1.1 Process of formation and development of the company 31 4.1.2 Facilities of the company 32 4.1.3 Company’s mission statement 33 4.1.4 Potention on production of ... costs are the costs of activities performed on each individual unit of a product or service Overtime, additional units of output produced will lead increase the cost of activities of running the automated...

Ngày tải lên: 13/03/2014, 14:20

... with a slope of mm corresponding to the Kd of DPM8 Thermal unfolding of monomeric PM8 Fig Kinetic analysis of dimerization of the human pancreatic ribonuclease variant, PM8 (A) Aliquots of the monomeric ... Assessment of the degree of swapping of the N-terminal domain in PM8E103C Results of SDS ⁄ PAGE analysis, under reducing conditions of the divinyl sulfone (DVS) cross-linking reaction of PM8E103C, ... hinge region [19] Here, the study of the dimerization process of PM8 offers new clues about the structural determinants that are responsible for the dimerization of the RNases However, as it was...

Ngày tải lên: 16/03/2014, 13:20

... Necessity It refers to the decision of buying both of the consumer and of the seller The buying decision of the seller is more difficult as a too small quantity of a certain product creates stock ... certain type of sale Promoting the idea that merchandising is, first of all, “perfect knowledge of the sales point”, the French specialists consider that the rational use of each linear meter of furniture, ... As a result of its practical importance, in the key point of the sales (the shop), the issues and techniques of merchandising are the preoccupation of both traders and producers, who often support...

Ngày tải lên: 16/03/2014, 15:20

... definition (final value of N)t+ dN ≡ lim t→0 dt − (initial value of N)t t t (2.13) where the final value of N is the N of regions and computed at time t + the initial value of N is the N of regions and ... this form of the continuity equation in several future derivations 2.6 CONSERVATION OF ENERGY The first law of thermodynamics is a statement of conservation of energy For a system composed of a given ... variety of practical engineering problems can be solved with these concepts, and many of these problems are covered throughout the text Examples of these are the off-design operation of supersonic...

Ngày tải lên: 17/03/2014, 14:01

... insulating grains The ratio of the slopes of straight lines, A/B, gives the ratio of reaction rate constants (k2 ) of H2 and CO; k2 of H2 is analyzed to be 14 times as large as that of CO Similar H2 response ... breakthrough in the design and processing of materials toward innovations of gas sensors Micro-platforms fabricated with MEMS techniques are almost ready to be used in gas sensors Excellent heating ... Theory of power laws for semiconductor gas sensors, Sens Actuators B: Chem 128 (2008) 566–573 [6] N Yamazoe, K Shimanoe, Roles of shape and size of component crystals in semiconductor gas sensor...

Ngày tải lên: 20/03/2014, 13:05

... layers is 0.8 nm? Because the adjacent layers of nanotube are kept apart by wall of OH- groups (shown as Figure 5) Theoretically, the distance of the layers of the wall should be γ OH − +2 γ Ti + =4×0.12 ... sample(4a) contains 5.8 atomic percent of Na and the latter(4d) contains only trace of Na, it shows that the treatment with HCl solution is helpful for the removing of Na+ ion from TiO2 nanotubes Why ... 12 min) a) Swelling side (pointed by arrow); b) Fragments peeling off from granular TiO2 TEM Study on the Formation Process of TiO2 Nanotubes Figure Figure TEM image (After reaction with alkali...

Ngày tải lên: 20/03/2014, 13:08

... by means of system, which consists of measuring camera, multimeter Keithley-2010 and PC Results and discussion The XPS-spectra of W4f- and O1s-levels of the samples and the results of their decomposition ... the results of decomposition of W4f-line in the annealed and non-annealed samples The maxima of peak couples correspond to W4f7/2 - and W4f5/2 -levels of tungsten atoms for W5+ -states of oxide ... surface of stoichiometric tungsten oxide is formed only of W6+ states of WO3 -phase (comps d-d , Fig 2-4) A signal from WO3 ·(OH2 )n is absent (comps e-e , Fig 2-4) The results of decomposition of...

Ngày tải lên: 20/03/2014, 13:12