the steam turbines employ surface type

Ngày tải lên: 08/08/2012, 17:20

... all the examined types and sizes of steam turbines Furthermore, the inlet steam flow into the turbine is linearly depended on the size of the turbine and therefore on the installed capacity of the ... 1000000 Steam turbine capacity (kWe) Figure Maximum efficiency of the steam turbine The expected specific capital cost of the power block, which includes the cost of the steam turbine, the condenser ... CSP plants For the purpose of this analysis, the Steam Pro software module of the Thermoflow Suite 18 package [1] is used The investigation covers all three major types of steam turbines, that...

Ngày tải lên: 05/09/2013, 14:59

... Table The system design parameters have been defined by analyzing the common thermal power plant applications and they are the most frequently seen parameters Then, the optimum working values of the ... obtained thermoeconomically [8,9] In the thermoeconomic analysis of a system, the calculation is started from the point where power fluid enters the system Because the output of an element is the ... cost are handled together as they are the characteristic features of the system K = Y + IB (7) Mu = My + K (8) 3.2 Thermoeconomic balance equation The aim in writing the thermoeconomic balance...

Ngày tải lên: 05/09/2013, 16:11

... limit the application to air and steam, the working fluid could be the products of combustion and steam, or other arbitrary gases and steam 58.4 BLADE PATH DESIGN The accomplishment of the thermal ... is the isentropic expansion exponent given in Fig 58.14 (The definition of the exponent is given in the caption on the figure.) Note that the value of y well represents the properties of steam ... applied to the determination of its thermodynamic and transport properties The currently accepted description of steam' s thermodynamic properties is the ASME Properties of Steam publication.2 The Mollier...

Ngày tải lên: 25/10/2013, 13:15

... screw plug • The speed is measured with the help of hall probe • When the over speed occurs & goes beyond the preset value(s) the bolts fly out due to centrifugal force & strike against the respective ... respective pawls This will lead to the opening of the Drain port through which Auxiliary trip oil will be drained, resulting in the draining of the trip oil & thereby tripping the turbine  ... and Correcting elements - the valve or valves that control the flow of steam to the turbine MECHANICAL PROTECTION DEVICESOVER SPEED TRIP DEVICE OR EMERGENCY GOVERNORS • The function is to stop...

Ngày tải lên: 03/01/2014, 19:50

... The assembled T4SS then triggers the secretion of substrates from the bacterial cytoplasm directly into the cytoplasm of infected host cells or into the extracellular milieu (B) Model-1 for the ... studies indicate that there is a controversy in the literature about the importance of the CagL RGD-motif in T4SS functions and host cell signalling Another unsolved question is the proposed structure ... of the ulceration process, HtrA cleaves the junctional protein E-cadherin [8] Another intriguing possibility of junction disruption could be the transcytosis of basal integrins to the apical surface...

Ngày tải lên: 14/02/2014, 19:20

... illustrates the quality of the experimental data (Fig 2B) Reconstruction of the overall shape of the PLDa2 from the X-ray scattering data was achieved by the ab initio modeling program dammin [24] The ... binding, or adjusting the charge distribution at the active site Unfortunately, the number of calcium ions bound to the enzyme cannot be deduced from these data The binding event with the dissociation ... of the PpNp The financial support of the Kultusministerium des Landes Sachsen-Anhalt and the Graduiertenkolleg 1026 of the Deutsche Forschungsgemeinschaft, Bonn (Germany), and the support of the...

Ngày tải lên: 19/02/2014, 02:20

... played by another D residue [10] The present putative three-dimensional structure does not support this hypothesis On the other hand, the tertiary structure supports the homology between the active ... comprises the active site reveals both similarities between the two types of lysozymes and residues specific to the i -type (Fig 3) A BLAST search with the lysozyme sequence of A rubens in the sequence ... the mamalians Homo sapiens and Mus musculus, the teleost fishes Takifugu rubripes and Danio rerio and the urochordate Ciona intestinalis The presence of type i genes in the three branches of the...

Ngày tải lên: 19/02/2014, 12:20

... 3B, there was no stimulatory effect on Stx endocytosis upon addition of Stx B-subunit alone in either cell type; thus, the stimulation seems to require the presence of the Stx A-subunit The self-stimulated ... concentration at the cell surface compared to that in the medium Calculations show that there is  10 000 times higher concentration of labeled Stx at the cell periphery than in the rest of the FEBS ... [4,5]) The data shown in this article clearly reveal that the Stx A-subunit bound to the cells via the B-pentamer is responsible for the stimulation of endocytosis However, the requirement for the...

Ngày tải lên: 23/03/2014, 15:20

... applies only to the steam turbine, not the boiler or HRSG that is supplying the steam Emissions Emissions associated with a steam turbine are dependent on the source of the steam Steam turbines can ... Technology Characterization Steam Turbines Types of Steam Turbines The primary type of turbine used for central power generation is the condensing turbine These power-only utility turbines exhaust directly ... identifying the conditions of the steam as it exhausts from the turbine and in comparing the performance of various steam turbines Multistage (moderate to high pressure ratio) steam turbines have thermodynamic...

Ngày tải lên: 24/03/2014, 05:20

... tryptophans Therefore, the shape of the near-UV CD spectra of EspA suggests the presence of some tertiary contacts around at least one of the tyrosines both at pH 7.0 and 2.0 (Fig 2B) To gain further ... in these a-helices are exposed to the solvent Therefore, the near-UV CD signals observed at pH 7.0 and 2.0 in Fig 2B might be responsible for the formation of tertiary contacts around Y53 The ... for the transitions from either NII or NI to the unfolded state (U); whereas, the transition Fig Pseudo phase diagram for EspA: urea concentration vs pH at 20 °C The boundaries are defined by the...

Ngày tải lên: 30/03/2014, 16:20

... gây ảnh hưởng tiêu cực tới não Theo nghiên cứu Đại học Brown (Mỹ), chế độ ăn giàu chất béo đường làm nhiễu chế đáp ứng tế bào não với insulin Với bệnh tiểu đường type 2, chế độ ăn không lành mạnh ... amyloid với mật độ cao Có thể trở thành đại dịch Theo nghiên cứu Alzheimer mặt chất loại bệnh chuyển hóa Một số nhà khoa học đặt tên khác cho tiểu đường type Giới khoa học lần đề cập tới bệnh Alzheimer ... cao Như vậy, bệnh suy giảm trí nhớ có nguy trở thành đại dịch Trong đó, bệnh nhân mắc tiểu đường type 2, thường độ tuổi trung niên, béo phì, có nguy cao mắc bệnh Mặc dù phương pháp điều trị chưa...

Ngày tải lên: 03/04/2014, 01:20

Ngày tải lên: 27/04/2014, 15:32

... with the inner surface of the nanotube Secondly, the enhanced emission intensity in the visible range can be attributed to the higher concentration of surface defect states on the walls of the ... emission and the re-absorbance in the ZnO The defect-related emission can be further enhanced by the recombination process in the nanotubes, when the device is biased Table summarizes the coordinates ... suppress the visible emission In the case of the nanotubes, the etching mechanism not only removes non-radiative recombination centers present in the central core but also generates the surface...

Ngày tải lên: 21/06/2014, 00:20

... space F (R) In order to solve the general solution and the stability problem of (1.2) in the space F (R), we employ the fundamental solution of the heat equation called the heat kernel, Et (x) = ... of solutions of the heat equation as a special case of the results as in [24] In this case, the condition (i) in the above theorem is replaced by the following: For every ε > there exists a positive ... equation for the spaces of generalized functions Using the fundamental solution of the heat equation, we solve the general solution and prove the Hyers– Ulam stability of this equation in the spaces...

Ngày tải lên: 21/06/2014, 20:20

... confirmed the potentially harmful effects due to their high surface area, unique physiochemical properties, and increased reactivity of the material’s surface [11, 12] This has led to the term, ... demonstrate the change in particle size The stick pattern from reference data for wurtzite ZnO is shown along the x-axis (represented by the solid squares) and fully indexes the experimental data The ... ZnO, demonstrating that the sample is comprised of ZnO nanocrystals Furthermore, the average crystallite sizes estimated using the peak widths (full width at half maximum) of the XRD patterns agree...

Ngày tải lên: 22/06/2014, 00:20

... Applications In this paper, we will prove the Poincar´ inequality see Theorem 2.5 and the reverse e Holder inequality for the solution to the p-harmonic type system see Theorem 3.5 Now let ¨ us see some ... a and b A x, a 0, then the p-harmonic type system du b d∗ v 1.12 becomes A x, du d∗ v 1.13 It is the conjugate A-harmonic equation, where the mapping A : Ω × Λl → Λl satisfies the following conditions: ... |ξ|p−2 ξ, then the conjugate A-harmonic equation becomes the form |du|p−2 du d∗ v 1.15 It is the conjugate p-harmonic equation So we can see that the conjugate p-harmonic equation and the conjugate...

Ngày tải lên: 22/06/2014, 02:20

... in the liver) Here we focus on the formation of VLDL The secretory pathway As for other secretory proteins, apoB is synthesized on ribosomes attached to the surface of the ER (Figure 4) and the ... 2006) in Type I, Type IIa, Type IId/x, and Type IIb, having The Sick Adipocyte Theory: The Forces of Clustering at Glance particular metabolic properties, a) fast-twitch glycolytic fibers (types ... fit on the particle and the C-terminal to fold correctly, the chaperones dissociate and the particle can transfer out of the ER Thus, the primordial lipoprotein is either retained in the cell...

Ngày tải lên: 27/06/2014, 19:20

... journal of combinatorics 14 (2007), #N4 Using the proof of Theorem 2.1, we derive the explicit formulas for the elements xm and sn Theorem 2.2 [2, Theorems 4.1, 5.2] For every n ≥ 0, we have 2(n+1) ... 6], the elements s1 , s2 , together with the cluster monomials xp xq m m+1 for all m ∈ Z and p, q ≥ 0, form a Z-basis of A referred to as the semicanonical basis As a special case of the Laurent ... finishing the proof of Theorem 2.1 Proof of Theorem 2.2 Formulas (7) and (8) follow from (11) and (12) by induction on n Indeed, assuming that, for some n ≥ 1, formulas (7) and (8) hold for all the...

Ngày tải lên: 07/08/2014, 13:21

... Understanding the changes in these two constant values would lead to a better understanding of the changes in the Ea Observation of the trend of the curve-line from the left (L-shifted) to the right ... is the left-shifted curve after the temperature was reduced by 10 K; R-shifted is the right-shifted curve after the temperature was increased by 10 K; T-shifted is the top-shifted curve after the ... Figure 2, one can see that the reduction of the viscosity is greater at the initial stage of the temperature increment, and subsequent increases in the temperature during the latter part had less...

Ngày tải lên: 07/08/2014, 14:20