... in demanding biocide dosing 15 THE OBJECTIVE AND THE OUTLINE OF THE STUDY The objective of this work was to study the interactions of microbial activity, biocide usage and - creation and chemical ... Optimization of biocide dosage 82 9.4 Measurement of other chemical parameters 84 10 INFLUENCE OF BIOCIDES AND BIOCIDE INTERACTIONS ON PAPERMAKING PERFORMANCE (Papers III and V) 88 10.1 Chemical ... permission of the School of Chemical Technology for public examination and debate in Auditorium Puu2 at the Aalto University School of Chemical Technology (Espoo, Finland) on the 20th of January 2012...
Ngày tải lên: 18/03/2014, 02:20
... its size, and how to obtain the best operating conditions An understanding of chemical reaction kinetics and the design of chemical reactors is very important to the chemist and the chemical engineer ... biochemists and biochemical engineers Biochemical reactions involve both cellular and enzymatic processes, and the principal differences between biochemical and chemical reactions lie in the nature of ... Calk of Gulf Publishing Company for his direction and editing of the book, to Danette DeCristofaro and Jerry Hayes of ExecuStaff for their excellent production of the book, to Mr Phil Carmical and...
Ngày tải lên: 01/04/2014, 10:25
handbook of chemical technology and pollution control- 2006, elsevier,
... Netherlands) BP (U.K.) Degussa (Germany) Akzo-Nobel (Netherlands) ICI (U.K.) Mitsui Chemicals (Japan) Chemicals, Chemicals Chemicals, Chemicals Chemicals, Chemicals Chemicals Chemicals, Chemicals Chemicals, ... )n , and selected from those of Peters and Timmerhaus [15] and Allen [16] a Hocking: Handbook of Chemical Technology and Pollution Control 0120887967_chap01 1.5 CHEMICAL PROCESSING Final Proof ... to commodity chemicals 1.2 TYPES AND SIGNIFICANCE OF INFORMATION With the moderately high growth rate of the chemical industry and its high rate of obsolescence of both products and of the processes...
Ngày tải lên: 01/04/2014, 11:46
Analysis of Chemical Toxicants and Contaminants in Foods
... development and commercialization of a number of instruments for the detection and measurement of chemicals of interest, and a much improved ability to distinguish between the target analyte and some ... present and, if so, how much of each?” MRMs will provide information on a much broader range of chemicals than SRMs for a similar investment of time and energy.9 The FDA and other agencies often ... additives, natural poisons, and other chemical and microbial contaminants in food and feed Journal of the Association of Official Analytical Chemists Same coverage as the compendium of the AOAC, but including...
Ngày tải lên: 11/01/2016, 13:49
Tài liệu CONTROL OF ORGANIC COMPOUND EMISSIONS FROM CHEMICAL, COATINGS AND RUBBER PRODUCTS MANUFACTURING pdf
... documentation is to include a description of the equipment that leaked, date of detection, date of repair, dates of follow−up inspection, and an explanation of what caused the leak This documentation ... documentation is to include a description of the equipment that caused the leak, date of detection, date of repair, date of follow−up inspection, and an explanation of what caused the leak This documentation ... control device or the cost of replacement of part of the control device exceeds 50% of the cost of replacing the entire control device with a control device that is capable of complying with the respective...
Ngày tải lên: 14/02/2014, 08:20
Tài liệu Báo cáo khoa học: Physico-chemical characterization and synthesis of neuronally active a-conotoxins docx
... analysis and chemical synthesis of these peptides muscle-acting a-conotoxin MI and the neuronally acting a-conotoxin MII [11–13] A biological interpretation of this emerging pattern of paired ligand ... Amidation of C-terminus Sulfation of tyrosine Hydroxylation of proline Carboxylation of glutamic acid Cyclization of N-terminal Gln O-Glycosylation Bromination of tryptophan Isomerization of tryptophan ... spectrometry and the lability of the sulfogroup in mass spectrometry analysis allows recognition of the modification, and differentiation of sulfotyrosine and phosphotyrosine [38] Characterization of the...
Ngày tải lên: 19/02/2014, 12:20
Báo cáo Y học: Artocarpus hirsuta lectin Differential modes of chemical and thermal denaturation potx
... (F335/356) and 25–35% shift in the emission maximum Refolding of the protein Renaturation or refolding of the protein was measured as the extent of reappearance of the original spectra (F 335/ 356) and ... modes of denaturation of the A hirsuta lectin with GdnHCl and heat The former unfolds and inactivates the protein, allowing it to fold back and reactivate to certain extent after removal of the ... range of 5.0–8.0, while it is more drastic at pH 4.0 and 9.0 The concentration of GdnHCl required for 50% unfolding of the protein between the pH range 6.0–8.0 is higher (3.2 M) than at pH 4.0 and...
Ngày tải lên: 08/03/2014, 16:20
Chemical speciation and extractability of zn, cu and cd in two contrasting biosolids amended clay soils
... properties of the soils and biosolids are shown in Table and concentrations of major nutrients and heavy metals are listed in Table The fresh sludge had a dry matter content of 24.5% and was air-dried ... often been correlated with some extractable fraction of the soil metal The aim has been to use a relatively quick and simple chemical extraction to describe the mobility and bioavailability of ... appropriate for the estimation of short and medium term metal risks (Tack and Verloo, 1996) However, the use of single extraction in the study of the distribution of heavy metals in biosolids-amended...
Ngày tải lên: 15/03/2014, 23:22
Effect of metal spiking on different chemical pools and chemically extractable fractions of heavy metals
... samples of both unspiked and metal spiked sludge were drawn for chemical analysis Results and discussion 3.1 Properties of sludge Metal spiking and incubation of sludge led to decrease the pH of sludge ... spiking and incubation, it appeared that bio-oxidation of organic carbon and consequent acidification effected release of Ni, Cu, and Cd from F5 (residual fraction), of Ni and Zn from F3 fraction, of ... Ni, Cu, and Cd, into F4 fraction in case of Pb, Cu, and Cd, into F2 fraction in case of Ni, Cd, Pb, and Cu and invariably increased the F1 fraction (water soluble and exchangeable form) of all...
Ngày tải lên: 16/03/2014, 00:07
Báo cáo khoa học: Methylene analogues of adenosine 5¢-tetraphosphate Their chemical synthesis and recognition by human and plant mononucleoside tetraphosphatases and dinucleoside tetraphosphatases pot
... antagonists of the P2X2 ⁄ receptor [30] and a short report has appeared on the synthesis of pCH2pppA, pCH2pppG and pCH2pppm7G [31] Here, we describe details on the synthesis of and the results of enzymatic ... pH 6.0 and buffer B was buffer A: ⁄ methanol (70 : 30 v ⁄ v)] Table Comparison of the hydrolysis of ppppA and pppCH2pA by specific p4A-hydrolysing enzymes The velocities of conversion of the nucleoside ... after 6, 12, 18 and 24 of incubation Unlabelled standards of the product [ATP for (asymmetrical) Ap4A hydrolases and ADP for (symmetrical) Ap4A hydrolase] were applied at the origin, and plates were...
Ngày tải lên: 16/03/2014, 14:20
Integrated Systems of Meso-Meteorological and Chemical Transport Models docx
... chemical, physical processes and presents significant challenges in terms of both scientific understanding and computational demand In this work, the history and current status of development and ... chemistry and simple aerosol/cloud chemistry and microphysics and often neglects the feedbacks between prognostic chemical species (e.g., O3 and aerosols) and radiation (e.g., Roelofs and Lelieveld ... practice, and gives recommendations for on-line and off-line coupling of NWP and ACT models, implementation strategy for different feedback mechanisms, direct and indirect effects of aerosols and advanced...
Ngày tải lên: 16/03/2014, 23:20
PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
... chemical and physical properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices ... Agency's Office of Prevention, Pesticides and Toxic Substances (OPPTS) [1] Hence, the need for physical and chemical constants of chemical compounds has greatly accelerated both in industry and government ... databases The strength of the electrostatic interaction between S and C depends on the magnitude and relative orientation of the local fields of S and C and the dielectric properties and distances through...
Ngày tải lên: 22/03/2014, 14:20
Báo cáo khoa học: Total chemical synthesis and NMR characterization of the glycopeptide tx5a, a heavily post-translationally modified conotoxin, reveals that the glycan structure is a-D-Gal-(1fi3)-a-D-GalNAc pot
... addition of 10 lL 10% aqueous trifluoroacetic acid and immediately injected onto RP-HPLC and fractions collected were collected and analyzed with ESI and MALDI-MS Chemical reduction The native and ... increments in t1 and spectral widths of 8000 Hz and 17 591 Hz in the 1H and 13C dimensions, respectively A total of 256 summed scans were collected with a relaxation delay of 1.3 s All 1H and 1H-13C ... protons of Thr10, Ala12 and Hyp13 interact with the A tx5a glycan protons Several NOEs are observed between the anomeric proton of GalNAc and the side-chain atoms of Thr10; Thr10b (strong NOE) and...
Ngày tải lên: 23/03/2014, 13:20
Guide for the Selection of Chemical and Biological Decontamination Equipment for Emergency First Responders ppt
... Bureau of Justice Assistance, the Bureau of Justice Statistics, the Office of Juvenile Justice and Delinquency Prevention, and the Office for Victims of Crime U.S Department of Justice Office of ... LAW ENFORCEMENT AND CORRECTIONS STANDARDS AND TESTING PROGRAM The Law Enforcement and Corrections Standards and Testing Program is sponsored by the Office of Science and Technology of the National ... Coordination by: Office of Law Enforcement Standards National Institute of Standards and Technology Gaithersburg, MD 20899–8102 Prepared for: National Institute of Justice Office of Science and Technology...
Ngày tải lên: 23/03/2014, 23:20
Guide for the Selection of Chemical and Biological Decontamination Equipment for Emergency First Responders pdf
... Bureau of Justice Assistance, the Bureau of Justice Statistics, the Office of Juvenile Justice and Delinquency Prevention, and the Office for Victims of Crime U.S Department of Justice Office of ... LAW ENFORCEMENT AND CORRECTIONS STANDARDS AND TESTING PROGRAM The Law Enforcement and Corrections Standards and Testing Program is sponsored by the Office of Science and Technology of the National ... Coordination by: Office of Law Enforcement Standards National Institute of Standards and Technology Gaithersburg, MD 20899 Prepared for: National Institute of Justice Office of Science and Technology...
Ngày tải lên: 23/03/2014, 23:20
Báo cáo Y học: Chemical structures and immunolocalization of glycosphingolipids isolated from Diphyllobothrium hottai adult worms and plerocercoids ppt
... contained galactose and glucose: 75.5% and 24.5% in A-1, 68.8% and 31.2% in A-2, and 70.5% and 29.5% in A-3 MALDI-TOF MS spectra (Fig 4) proved that three fractions were CMH, and each of them was found ... fractions (Fig 3), each containing galactose and glucose: 66.6% and 33.4% in P-1, 79.6% and 20.4% in P-2, 90.0% and 10.0% in P-3, and 83.5% and 16.5% in P-4 MALDI-TOF MS spectra proved that four GSL fractions ... configuration and confirm linkage sequence of carbohydrates, A-7 and A-9 were subjected to proton NMR spectroscopy, and showed four and five anomeric protons, respectively Chemical shifts and coupling...
Ngày tải lên: 24/03/2014, 03:21
Báo cáo Y học: Chemical structure and immunoreactivity of the lipopolysaccharide of the deep rough mutant I-69 Rd–/b+ of Haemophilus influenzae docx
... of the signal of its anomeric proton and another phosphate linked to the 4-position of the b-configured GlcN (B) The far downfield position of the chemical shifts of proton H-4 and carbon C-4 of ... instead of Kdo-4P or with antigens containing nonphosphorylated Kdo Fig Binding curves of mAbs S42-16 (A and B), S42-21 (C and D), and S42-10-8 (E and F) to Kdo4P-GlcN2P2-BSA (A, C and E) and Kdo5P-GlcN2P2-BSA ... 2002 Table Structure and antigenicity of H influenzae LPS (Eur J Biochem 269) 1241 13 C-NMR chemical shift data of compounds and ND, not determined 13 C -Chemical shift ( p.p.m.) of carbon Compound...
Ngày tải lên: 31/03/2014, 21:21
conservation equations and modeling of chemical and biochemical processes
... Chemistry and Applications, edited by Leslie R Rudnick Handbook of Fluidization and Fluid-Particle Systems, edited by WenChing Yang Conservation Equations and Modeling of Chemical and Biochemical ... Reserved types of systems—isothermal/nonisothermal, lumped/distributed, and steady-/unsteady-state A number of chemical and biochemical examples of varying degrees of complexity and unsolved problems ... Paal and P G Menon Flow Management for Engineers and Scientists, Nicholas P Cheremisinoff and Paul N Cheremisinoff Catalysis of Organic Reactions, edited by Paul N Rylander, Harold Greenfield, and...
Ngày tải lên: 01/04/2014, 10:20
principles of chemical reactor analysis and design new tools for industrial chemical reactor operations
... reliability of predicting the flow patters, (ii) ease of incorporating of the chemical kinetics and adequacy of the physical and chemical representations, (iii) scale of resolution for the application and ... Contexts of Chemical Reaction, 25 Chemical Formulas and Stoichiometric Coefficients, 26 Extent of a Chemical Reaction, 28 Independent and Dependent Chemical Reactions, 39 Characterization of the ... because of the wide scope of the field and the diversity of topics that it covers As the title indicates, this book focuses on the analysis and design of chemical reactors The objective of the...
Ngày tải lên: 01/04/2014, 10:36
control and monitoring of chemical batch reactors advances in industrial control
... Ideas of Scale-up 7.4.2 The Scale-up of Real Batch Reactors 7.5 Suggestions and Conclusions References Appendix A Proofs A.1 Proof of Theorem 5.1 A.2 Proof of ... A.1 Proof of Theorem 5.1 A.2 Proof of Theorem 5.2 A.3 Proof of Theorem 5.3 A.4 Proof of Theorem 5.4 A.5 Proof of Theorem 6.1 A.6 Proof of Theorem 6.2 ... determine the behavior of the chemical reaction and thus the final product of the batch Of course, temperature control is of the utmost importance to ensure safety of the plant and the human operators,...
Ngày tải lên: 01/04/2014, 10:59