heterogeneous catalysis concepts and examples

Sulfuric acid manufacture analysis, control and optimization

Sulfuric acid manufacture analysis, control and optimization

... catalyst and catalyst beds 8.1 Catalytic reactions 8.2 Maximum and minimum catalyst operating temperatures 8.3 Composition and manufacture 8.4 Choice of size and shape 8.5 Catalyst bed thickness and ... H 2O(g), and N2 Dust removal by electrostatic precipitation and aqueous scrubbing 12% SO2, 9% O2, 79% N Gas cooling and aqueous scrubbing Gas cooling Gas drying and heating Gas drying and heating ... increased demand The 2009 catastrophic price fall was the reverse of the above China’s demand for metals and chemicals decreased briefly, but sharply, leading to a sharp decrease in acid demand and a...

Ngày tải lên: 24/09/2016, 07:13

528 902 1
Tài liệu Báo cáo khoa học: Steady-state and time-resolved fluorescence studies of conformational changes induced by cyclic AMP and DNA binding to cyclic AMP receptor protein from Escherichia coli ppt

Tài liệu Báo cáo khoa học: Steady-state and time-resolved fluorescence studies of conformational changes induced by cyclic AMP and DNA binding to cyclic AMP receptor protein from Escherichia coli ppt

... 1ị where SD and SRF are the respective areas under the emission spectra of the donor and a reference compound, and ARF and AD are the respective absorbances of the reference compound and donor ... 10PỵDAị=2 2ị where F and Fcor are uorescence intensity before and after the correction, and P and DA denote the initial sample absorbance at the excitation wavelength and the change in absorbance ... bold An equimolar amount of complementary strand was added, and the mixture was heated for at 96 C and slowly cooled to room temperature The double-stranded DNA was stored at )20 C in experimental...

Ngày tải lên: 20/02/2014, 23:20

11 494 0
Báo cáo khoa học: A steady-state modeling approach to validate an in vivo mechanism of the GAL regulatory network in Saccharomyces cerevisiae ppt

Báo cáo khoa học: A steady-state modeling approach to validate an in vivo mechanism of the GAL regulatory network in Saccharomyces cerevisiae ppt

... the presence of galactose D1 and D2 represent genes with one and two binding sites, respectively G4, G80, G3 and G3* represent regulatory proteins Gal4p, Gal80p, Gal3p and activated Gal3p, respectively ... protein expression to galactose and additionally report Hill coefficients of 1.2 and for one and two binding sites, respectively The equations representing the four candidate models described in ... were simulated to yield f1p and f2p at various galactose concentrations Figure shows comparisons of f1p and f2p between the model simulation results for candidate Model I and experimental data The...

Ngày tải lên: 07/03/2014, 16:20

11 490 0
Báo cáo khoa học: Analysis of the contribution of changes in mRNA stability to the changes in steady-state levels of cyclin mRNA in the mammalian cell cycle doc

Báo cáo khoa học: Analysis of the contribution of changes in mRNA stability to the changes in steady-state levels of cyclin mRNA in the mammalian cell cycle doc

... Likewise, A- and B-type cyclin mRNA were reported to be induced in S and G2 ⁄ M phase as a consequence of events in G1 phase [4,8–10] In addition, several studies concluded that cyclin, cdk and cdk-inhibitor ... conserved in evolution and thus amenable to genetic analysis in the mouse We therefore examined mRNA expression and stability in synchronized mouse lymphoma EL4 cells and 3T3 fibroblasts We analyzed ... of cyclins C, D1 and D3, as well as c-myc, RanGTPase and RanBP1 were unchanged (Fig 1B) Cyclin D2 was not expressed in EL4 cells Cyclin E1 mRNA increased slightly in late G1 and then diminished...

Ngày tải lên: 30/03/2014, 20:20

13 338 0
Tài liệu Steady State Operation of DC Machines pptx

Tài liệu Steady State Operation of DC Machines pptx

... Excitation flux is constant and equal to rated Mechanical losses and iron core losses can be neglected and armature voltage is constant and equal to rated Calculate rated torque and rated power of the ... DC motor has armature and excitation winding resistances of 0.2 Ω and 0.1 Ω, respectively Rated motor date are 1000 rpm, 40 A and 450 V Calculate rated torque, rated power and efficiency in rated ... a DC motor Standard data that are given for a DC motor on its nameplate are so-called rated values of output power, armature voltage and current, excitation voltage and current, and speed of...

Ngày tải lên: 17/12/2013, 14:15

12 528 1
Tài liệu TRANSIENT and STEADY STATE THERMAL ANALYSIS OF HEATSINK Pro/ENGINEER and Pro/MECHANICA Wildfire doc

Tài liệu TRANSIENT and STEADY STATE THERMAL ANALYSIS OF HEATSINK Pro/ENGINEER and Pro/MECHANICA Wildfire doc

... Show Element Edges Un-check Show Loads and Show Constraints Click the OK and Show button 31 32 Create a Capping Surface Display Turn off Show Element Edges, and display the heat sink in default ... CPU heats up and reaches maximum output of 50 W at 150 seconds Under Type change to Table Click on Add Row button Fill in the dialog box as shown below Click OK Enter the time, and value as shown ... BndyCondSet1 to highlight it Both BndyCondSet1 and ThermLoadSet1 are highlighted Enter 22 for the initial Temperature Keep the rests default Click on Convergence tab, and make sure Single-Pass Adaptive method...

Ngày tải lên: 19/01/2014, 05:20

37 416 1
Tài liệu Báo cáo khoa học: Steady-state kinetic behaviour of functioning-dependent structures docx

Tài liệu Báo cáo khoa học: Steady-state kinetic behaviour of functioning-dependent structures docx

... mechanisms supply S1 and remove S3 as and when they are consumed and produced, respectively, such that S1 is maintained at a constant concentration and S3 at a zero concentration, and (ii) we use ... E1S1E2S3 and E1S2E2S3) Assuming that external mechanisms supply S1 and remove S3 as and when they are consumed and produced, respectively, such that S1 is maintained at a constant concentration and ... kÂjf and kÂjr, of the forward and reverse reactions are also indicated in the table Note that, depending on the molecularity of the terms in the left-hand side of the reactions, kÂ1f to kÂ8f and...

Ngày tải lên: 19/02/2014, 06:20

13 483 0
Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx

Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx

... yeast [11] and mammalian [12,13] enzymes that all require the presence of UTP and/ or ATP to form tetramers Therefore, the L lactis CTP synthase is an attractive candidate for mechanistic and structurefunction ... liver, and demonstration of monomer, dimer and tetramer Biochim Biophys Acta 953, 334344 13 van Kuilenburg, A.B., Elzinga, L., van den Berg, A.A., Slingerland, R.J & Van Gennip, A.H (1994) A fast and ... ! glutamate ỵ NH3 ẵ8 and ATP ! ADP ỵ Pi Isothermal titration calorimetry (ITC) assay of glutaminase activity and CTP synthesis CTP synthase at concentrations between 0.029 and 1.16 lM was loaded...

Ngày tải lên: 21/02/2014, 15:20

8 698 0
Tài liệu Báo cáo khoa học: "Dialogue and Understanding Development Environment, mapping Business Process Models to Information State Update dialogue systeDialogue and Understanding Development Environment, mapping Business Process Modelsms" pptx

Tài liệu Báo cáo khoa học: "Dialogue and Understanding Development Environment, mapping Business Process Models to Information State Update dialogue systeDialogue and Understanding Development Environment, mapping Business Process Modelsms" pptx

... tasks (e.g a BPM with several sub-processes), explicit and implicit confirmation, help, restart, repeat, and quit commands, and presentation and refinement of database query results This is a domain-neutral ... can deploy and manage complex business processes to be used by thousands of human contact centre operatives However, many of these interactions are mundane and tedious for humans, and can easily ... to generate appropriate clarification questions), and we show an ISU dialogue management component, which tracks dialogue context and takes standard BPMs as input to its discourse planner Developers...

Ngày tải lên: 22/02/2014, 02:20

4 345 0
GCR 12-957 A Guide to United States Furniture Compliance Requirements pot

GCR 12-957 A Guide to United States Furniture Compliance Requirements pot

... Non-Full-Size Cribs and Toddler Beds The CPSC has set standards for bunk beds, full-size cribs, and non-full-size cribs These standards were recently revised 16 CFR Parts 1213 and 1513, Safety Standards ... Island, and Wisconsin OVERVIEW OF THE U.S VOLUNTARY STANDARDS FRAMEWORK The U.S system of standards development is driven by the private sector The majority of U.S standards are voluntary and ... for Standards Coordination Office, National Institute of Standards and Technology This publication was produced as part of contract SB134111BR0002 with the National Institute of Standards and Technology...

Ngày tải lên: 15/03/2014, 23:20

27 1,8K 0
Báo cáo khoa học: Modeling of ATP–ADP steady-state exchange rate mediated by the adenine nucleotide translocase in isolated mitochondria potx

Báo cáo khoa học: Modeling of ATP–ADP steady-state exchange rate mediated by the adenine nucleotide translocase in isolated mitochondria potx

... matrix and outside of mitochondria to form the complexes MgADP) and MgATP2): ATP4 ỵ Mg2ỵ ẳ MgATP2 ; KT;Mg ẳ MgDi ẳ Dt i 6ị Here, P1i, P2i and P1o, P2o are the concentrations of twice-protonated and ... Moreover, our model predicts that concentrations of ADP and ATP (Fig 4B) at state (DWm is about )145 mV) are equal to 8.7 mm and 3.3 mm, respectively, and transition from state to state (DWm is about ... AMP, ADP and ATP have been resolved on the basis of different retention times through the HPLC column, identied and calibrated by spiking the samples with known amounts of AMP, ADP, and ATP,...

Ngày tải lên: 16/03/2014, 00:20

14 444 0
Recourse to Force State Action Against Threats and Armed Attacks pptx

Recourse to Force State Action Against Threats and Armed Attacks pptx

... interpretation and adaption through the member states’ individual and collective practice: their actions, voting, and rhetoric Each principal organ and the members thus continuously interpret the Charter and ... settlement could not be expected to command respect and therefore to endure, and if another and better settlement were not found, the prestige of the Security Council and of the organization generally, ... international peace and security and, to this end, to respect the human rights and fundamental freedoms of all its people and to govern in accordance with the principles of humanity and justice Subject...

Ngày tải lên: 16/03/2014, 13:20

219 482 0
Báo cáo khoa học: Pyruvate metabolism in rat liver mitochondria What is optimized at steady state? pptx

Báo cáo khoa học: Pyruvate metabolism in rat liver mitochondria What is optimized at steady state? pptx

... 2.7.4.6 6245 Pyruvate metabolism in rat liver mitochondria J W Stucki and R Urbanczik program by Urbanczik and Wagner [13] that handles reversible reactions without splitting them into two irreversible ... which generates no output except CO2 and H2O but consumes pyruvate and dissipates ATP in reaction 21 Because, as mentioned above we are ignoring CO2, H2O and Pi, in our notation the Krebs cycle ... in incubated mitochondria and in the free-flow system The data in Fig and Table were converted into percentage on the basis of the pyruvate entering the mitochondria and plotted together in a...

Ngày tải lên: 16/03/2014, 14:20

10 324 0
Hard Drive of the Future: Your Guide To Solid State Drives

Hard Drive of the Future: Your Guide To Solid State Drives

... place and was not susceptible to scratches, magnetism or dust It was significantly faster, too! USB Flash storage understandably caught on in a big way and by 2003 was widely available in 32, 64 and ... nice perk As well as outperforming HDDs in random reads, SSDs also have the upper hand in sustained reading and writing (which is when you’re reading and writing large files like videos, for example) ... However, Apple’s wild success with the iPod and then the iPod Nano transferred instantly to the Shuffle and Nano, which started with 512MB or 1GB and 2GB or 4GB of storage, respectively In 2007...

Ngày tải lên: 19/03/2014, 17:28

47 436 0
Báo cáo khoa học: A steady-state competition model describes the modulating effects of thrombomodulin on thrombin inhibition by plasminogen activator inhibitor-1 in the absence and presence of vitronectin ppt

Báo cáo khoa học: A steady-state competition model describes the modulating effects of thrombomodulin on thrombin inhibition by plasminogen activator inhibitor-1 in the absence and presence of vitronectin ppt

... muscle cells (SMC), monocytes, and macrophages in atherosclerotic lesions of the human and rabbit aorta [14] Also, due to the colocalization of thrombin, PAI-1 and VN in the vessel wall, increasing ... (solulin) After (lane 1), (lanes 2, 4, and 8) or 16 h (lanes 3, 5, and 9) the samples were immediately quenched by adding sample buffer, subjected to 10% (w/v) SDS/PAGE and stained with Coomassie Brilliant ... effect of the second-order rate constants and concentrations of TM and PAI-1 on the rate of thrombin/ PAI-1 complex formation For various combinations of kon and koff for the thrombin/TM interaction,...

Ngày tải lên: 23/03/2014, 17:21

10 483 0
Báo cáo khoa học: Experimental and steady-state analysis of the GAL regulatory system in Kluyveromyces lactis docx

Báo cáo khoa học: Experimental and steady-state analysis of the GAL regulatory system in Kluyveromyces lactis docx

... (f2p) for wild-type strains of S cerevisiae and K lactis The broken line and circles represent the S cerevisiae wild-type strain response and the full line and squares represent the K lactis wildtype ... Hill coefficients of 1.3 and 2.1 for genes with one and two binding sites, respectively [20] However, K lactis has Hill coefficients of 1.64 and 2.57 for genes with one and two binding sites (see ... respectively, in the noninduced state and 20, 342 and 11 000 nm, respectively, in the induced state Similarly, the concentrations of ScGal80p and ScGal3p in S cerevisiae were 50 and 250 nm, respectively,...

Ngày tải lên: 29/03/2014, 09:20

16 371 0
REGIONAL OFFICE OF EDUCATION #1 NOTES TO FINANCIAL STATEMENTS JUNE 30, 2009 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)_part1 pdf

REGIONAL OFFICE OF EDUCATION #1 NOTES TO FINANCIAL STATEMENTS JUNE 30, 2009 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)_part1 pdf

... Calhoun, Greene, Cass and Morgan Counties C Truants Alternative and Optional Education Program - This was a State grant to provide counseling and incentives for problem students D Standards Aligned ... opinions and advice related to controversies under school law For the period ended June 30, 2009, the Regional Office of Education #1 applied for, received, and administered numerous State and Federal ... to significantly influence operations, and accountability for fiscal matters), scope of public service, and special financing relationships The districts and joint agreements have been determined...

Ngày tải lên: 19/06/2014, 19:20

10 254 0
REGIONAL OFFICE OF EDUCATION #1 NOTES TO FINANCIAL STATEMENTS JUNE 30, 2009 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)_part2 ppt

REGIONAL OFFICE OF EDUCATION #1 NOTES TO FINANCIAL STATEMENTS JUNE 30, 2009 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)_part2 ppt

... Expenditures: Salaries and bene tits Purchased services Travel and entertainment Supplies and materials Institute expenses and workshops Capital outlay Communication Postage and copies Payment to ... Expenditures: Salaries and benetits Purchased services Travel and entertainment Supplies and materials Institute expenses and workshops Capital outlay Communication Postage and copies Payment to ... EXPENDITURES AND CHANGES IN FUND BALANCES EDUCATION FUND ACCOUNTS FOR THE YEAR ENDED JUNE 30, 2009 164 Expenditures Salaries and benefits Purchased services Travel and entertainment Supplies and materials...

Ngày tải lên: 19/06/2014, 19:20

10 244 0
w