bolt torque required for sealing flanges
pressure vessel design manual
Ngày tải lên :
02/04/2014, 16:47
... Design of Flanges, 37 Procedure 2-8: Design of Spherically Dished Covers, 57 Procediire 2-9: Design of Blind Flanges with Openings, 58 Procedure 2-10: Bolt Torque Required for Sealing Flanges, ... for reverse flanges t = flange thickness, in t, =pipe wall thickness, in V =hub shape factor for integral flanges VL =hub shape factor for loose flanges W = flange design bolt load, lb Wml= required ... =hub shape factor F =hub shape factor for integral-type flanges FL, =hub shape factor for loose-type flanges f = hub stress correction factor for integral flanges G = diameter at gasket load reaction,...
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Linear Minimum Mean-Square-Error Transceiver Design for Amplify-and-Forward Multiple Antenna Relaying Systems
Ngày tải lên :
20/11/2012, 11:31
... kinds of cooperative protocols: amplify-andforward (AF), decode-and-forward (DF) and compress-and-forward (CF) For AF strategy, the relay only amplifies and forwards the received signal from the source ... terms of transceiver design minimizing MSE, for dual-hop AF MIMO relay systems with single relay, the optimal closed-form solution for joint optimal forwarding and equalizer matrices assuming ... iterative algorithm [40, 51] to solve for F and G In the following, it is shown that given F, there is a closed-form solution for G, and vice versa Therefore, the proposed algorithm computes...
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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing
Ngày tải lên :
19/03/2014, 16:48
... to nm, respectively A uniform functionalization with oxygen was applied to the as-provided carbon nanotubes in order to improve their dispersion and surface reactivity For this activation step ... Three concentrations of each gas under study were measured: 100, 200 and 500 ppb for NO2 ; and 1, 10 and 50 ppm for CO The sensors were placed inside an airtight 5.3 dm3 measurement chamber and ... The as-deposited sensing films were dried at 170 ◦ C for h in order to burn out the organic vehicle and after that annealed in situ at 400 ◦ C for h in ambient atmosphere During the annealing process,...
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Metal Foams: A Design Guide pptx
Ngày tải lên :
28/03/2014, 16:20
... possible Butterworth-Heinemann supports the efforts of American Forests and the Global ReLeaf program in its campaign for the betterment of trees, forests, and our environment Library of Congress ... of this book For information, please contact: Manager of Special Sales Butterworth-Heinemann 225 Wildwood Avenue Woburn, MA 01801-2041 Tel: 781-904-2500 Fax: 781-904-2620 For information on all ... rapidly Metfoams offer significant performance gains in light, stiff structures, for the efficient absorption of energy, for thermal management and perhaps for acoustic control and other, more...
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báo cáo hóa học:" Mid-term results and factors affecting outcome of a metal-backed unicompartmental knee design: a case series" pptx
Ngày tải lên :
20/06/2014, 04:20
... calculated based on Wilcoxon rank sum tests for continuous variables, and chi-squared or Fisher exact tests for categorical variables Page of (page number not for citation purposes) Journal of Orthopaedic ... attempt to assess hazard ratios for each individual cause for revision It is possible that such an analysis would reveal variability in independent associations for some modes of failure Finally, ... used to compare continuous and categorical variables, respectively, before and after the operations Seven factors were evaluated for association with implant failure: patient age, gender, obesity...
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Metal Foams: A Design Guide docx
Ngày tải lên :
27/06/2014, 17:20
... possible Butterworth-Heinemann supports the efforts of American Forests and the Global ReLeaf program in its campaign for the betterment of trees, forests, and our environment Library of Congress ... of this book For information, please contact: Manager of Special Sales Butterworth-Heinemann 225 Wildwood Avenue Woburn, MA 01801-2041 Tel: 781-904-2500 Fax: 781-904-2620 For information on all ... rapidly Metfoams offer significant performance gains in light, stiff structures, for the efficient absorption of energy, for thermal management and perhaps for acoustic control and other, more...
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METAL FORMING – PROCESS, TOOLS, DESIGN pps
Ngày tải lên :
29/06/2014, 13:20
... which abates thinning deformation of deformed area and aids the deformation of touching the female die and uniformity of deformation Compared with the experiments done before, the limit drawing ... components, hydroforming is now considered the only method in many cases The principle of tube hydroforming is shown in Figure The hydroforming operation is either force-controlled (the axial forces vary ... stamping and forging for sheet metal parts In an SFP, generally, stamping or drawing is used to form the spatial shape of the part first, and followed by a bulk forming employed to form the local...
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Design, synthesis and applications of Metal Organic Frameworks
Ngày tải lên :
02/07/2014, 12:59
... shown increased difficulty Our effort to circumvent this difficulty as synthesizing the 1,2,3triazole analogs afforded ligands to work with, but unfortunately the effort to construct MOFs utilizing ... manager, Will Lin, for me with instrument help At last, I would love to thank our former department head, Kristin Wobbe, who was my department head during my graduate life for years and has helped ... Figure 42 Sorption isotherm for 2-naphthol in MOF-5 60 Figure 43 Langmuir isotherm for sorption of ibuprofen by MOF-5 61 Figure 44 Langmuir isotherm for sorption of phenanthrene...
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Hints on the use of Pro-Engineer for Sheet Metal Design docx
Ngày tải lên :
14/08/2014, 11:20
... Table It is vital to define a Family Table for all folded components as they will be required in both bent and flat forms in drawings, and in the folded form in assembly models The family table ... to appear and it simply remains to select the attachment edge required for the copy Ensure that if the external edge was selected for the original then the same is selected here and vice-versa ... sketching on its edge and then extruding the profile, as, for example, when multiple bends are required To create an integral sensor bracket, for example, the dashboard shown below is entered by selecting...
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towards a rational design for sustainable urban drainage systems understanding (bio)geochemical mechanisms for enhanced heavy metal immobilization in filters
Ngày tải lên :
22/12/2014, 17:08
... Dorea for your friendship, guidance, assistance and one for the roads throughout and Heather Haynes for your help and sincere encouragement when I needed it most Finally, thanks to Ian Pulford for ... Kirsten for all the fun times and for our vent sessions on our walks into Uni as well as Sarah and Martin for not only partaking in, but organizing all of the fun times and being there for me ... blockage by biofilm for Slices 76 versus 135 of each experiment 127 Table 4.5 Results of concentric ROI for BLL, BDL, BLS and BDS for % pore blockage by biofilm for the entire stack,...
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Design and applications of phosphine ligands to transition metal catalyzed reactions
Ngày tải lên :
09/09/2015, 09:59
... labmates for their help during my PhD studies I also want to thank NUS for the research scholarship and financial support Thanks also go to all the staff in NMR, Mass, and X-Ray labs for their ... Run-xi, for always standing by me and supporting me wordlessly I thank to my parentsinlaw for taking care of my small family without me around My gratitude also goes to my parents and sister for ... method for constructing carboncarbon and carbonheteroatom bonds in organic synthesis and has been widely used in both academia and industry for decades As early as 1959, Wacker process for the...
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Theoretical understanding and design of supported metal heterogeneous nanocatalysts
Ngày tải lên :
09/09/2015, 10:15
... energy required to transform reactants into products 3.1 34 (a) Density of states (DOS) for pristine SrTiO3 (001) surfaces (a,b) and Nb-doped surfaces (c,d) Left panels (a,c) are for SrO-termination ... catalytic performance of those supported clusters, and results showed that the reaction barrier for catalyzed CO oxidation can be greatly reduced by strain, thus vi providing new opportunities for the ... experience for me to research under their instructions and it is also a precious treasure for me in my future research career I owe my deep gratitude to Dr Zhang Aihua, Dr Lu Yunhao for helping...
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DESIGN, SYNTHESIS AND PROPERTIES OF METAL COMPLEXES AND COORDINATION POLYMERS FOR 2+2 PHOTO CYCLOADDITION REACTIONS
Ngày tải lên :
09/09/2015, 11:15
... photo transformation of 3-9 monomer to dimer complex in SCSC manner Figure 3-7 DSC of III-2 3-11 Figure 3-8 3-11 H-NMR spectra of III-2 before & after heating at 220°C for 48 h, showing the formation ... Crystallographic Information File d doublet DMA Dimethylacetamide DMF Dimethylformamide DMSO Dimethylsulfoxide DSC Differential Scanning Calorimetry EtOH ethanol FTIR Fourier Transform Infrared FW Formula ... together for the photo cycloaddition Interestingly, there was formation of an intermolecular AgC interaction during the [2+2] photo cycloaddition reaction which has been conformed from SCSC transformation...
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Temperature control design project
Ngày tải lên :
20/09/2015, 11:34
... NGUỒN : 2.5.1 Mạch nguồn 5Vdc cung cấp cho vi điều khiển : 12VAC 6VAC V2 220VAC -6VAC -12VAC Transformer LM7805 VIN D1N4007 VOUT 5VDC D4 LED D2 GND D1 6VAC -6VAC C1 2200u D1N4007 C2 0.1u C3 470u ... Control System Design Department of Mechanical and Environmental Engineering, University of California [5] www.microchip.com Microchip Technology Inc [6] www.picvietnam.com [7] www.dientuvietnam.net...
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Complete oxidation of methane at low temperature over noble metal based catalysts
Ngày tải lên :
08/10/2015, 22:56
... catalysts for methane emissions abatement from lean-burn NGVs [7] A steady-state cycle, such as the ECE R-49 test used in Europe before 2000, was shown to result in better performance for hydrocarbons ... ◦ C are required for its re-formation The influence of various oxide supports other than alumina, Ta2 O3 , TiO2 , CeO2 and ZrO2 , on the thermal stability of supported PdO and the reformation ... bonds strength would be higher than for stoichiometric PdO, therefore being less reactive for methane oxidation The density of oxygen vacancies responsible for the activity would decrease with...
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- documents required for admission in colleges
- tips required for using keyboard safely in computer room
- materials required for soil conservation
- what is energy in the human body required for
- competencies required for a sales manager
- an integrated development environment combines all the tools required for