— corrosion protection of metals
code requirements for environmental engineering concrete structures (aci 350-01) and commentary (aci 350r-01)
Ngày tải lên :
24/10/2014, 15:45
... properties of the concrete, are essential 4.3.2 — Calcium chloride as an admixture shall not be used in concrete 4.4 — Corrosion protection of metals R4.4 — Corrosion protection of metals 4.4.1 — For corrosion ... 4.2—Freezing and thawing exposures 4.3—Sulfate exposures 4.4 Corrosion protection of metals 4.5—Chemical effects 4.6 Protection against erosion 4.7—Coatings and liners 4.8—Joints CHAPTER 5—CONCRETE ... acceptance of concrete 5.7—Preparation of equipment and place of deposit 5.8—Mixing 5.9—Conveying 5.10—Depositing 5.11—Curing 5.12—Cold weather requirements 5.13—Hot weather requirements CHAPTER 6—FORMWORK,...
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Chapter F: Protection against electric shocks
Ngày tải lên :
06/11/2013, 15:15
... the protective earthing conductor of the installation Partial measures of protection b Protection by means of obstacles, or by placing out of arm’s reach This protection is reserved only to locations ... distinguish two protections: b Complete (insulation, enclosures) b Partial or particular 2.1 Measures of protection against direct contact Protection by the insulation of live parts This protection ... current can induce a real risk of fire (see Fig F26) 4.2 Ground Fault Protection (GFP) Beginning of fire Different type of ground fault protections (see Fig F27) Three types of GFP are possible dependind...
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Tài liệu Báo cáo khoa học: Role of transcription factor activator protein 1 (AP1) in epidermal growth factor-mediated protection against apoptosis induced by a DNA-damaging agent doc
Ngày tải lên :
19/02/2014, 06:20
... Shuai (University of Role of AP1 in EGF-mediated cell protection California, Los Angeles) TMK-1 cells were cotransfected with 8.5 lg of TAM67 and 1.5 lg of pBabePuro by using the Lipofectamine reagent, ... cell death The development of the chemotherapy-resistant phenotype is a major cause of failure in the treatment of malignancies Drug resistance has been linked to a number of molecular changes in ... after the start of treatment with EGF, indicating that EGF regulated the level of the Bcl-XL protein at the transcriptional level Next we determined the effect of ADR on the expression of Bcl-XL (Fig...
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Báo cáo khoa học: Modified merozoite surface protein-1 peptides with short alpha helical regions are associated with inducing protection against malaria docx
Ngày tải lên :
08/03/2014, 08:20
... that of the daN sequential signal) and the presence of strong dNN cross-peaks, indicated that there was a significant population of conformations in the a region of the /w space The presence of ... complete protection in three of 16 monkeys (18% protective efficacy) Group B (including peptide 23754) had modifications that induced high antibody titres without protection The largest panel of modified ... [12] Protection was defined as being the total absence of parasites in blood during the 15 days of the experiment Nonprotected monkeys developed patent parasitemia on days or 6, reaching levels of...
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Protection against South American leaf blight of rubber in Asia and the Pacific region pptx
Ngày tải lên :
08/03/2014, 10:20
... of survival of the pathogen 3.2.2.6 Effectiveness of existing control programmes 3.2.2.7 Conclusion of the assessment of the probability of establishment 3.2.3 Probability of ... probability of entry for each category of potential vector 21 Table Summary of the assessment of entry Vector Probability of transit by Sea/Air Probability of association Probability of transfer ... 38 of 2006 on List of Quarantine Pest q Ministry of Agricultural Decree No 559 of 1985 on Plant Quarantine Requirements for the importation of plant propagating materials of rubber, cocoa, coffee,...
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Báo cáo khoa học: Peroxisome proliferator-activated receptor a–retinoid X receptor agonists induce beta-cell protection against palmitate toxicity doc
Ngày tải lên :
23/03/2014, 07:20
... Clofibrate + Ciprofibrate + 9-cis RA + Clofibrate / 9-cis RA + Ciprofib / 9-cis RA # # 20 # # # # 10 20 #$ #$ #$ #$ 10 500 250 100 clofibrate ( M - days 250 M - days 500 M) Fig Effect of PPARa and ... C16:0 + Clofibrate / 9-cis RA C16:0 + Clof / 9RA + etomoxir 30 % Cytotoxicity In the presence of etomoxir, the protective effect of clofibrate and 9-cis-RA was abolished, and the cytotoxicity of palmitate ... contrast to the situation in beta-cells, 30% of the labeled palmitate was converted to CO2 independently of the glucose concentration Effect of regulators of palmitate metabolism on palmitate toxicity...
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Báo cáo khoa học: A nonribosomal peptide synthetase (Pes1) confers protection against oxidative stress in Aspergillus fumigatus ppt
Ngày tải lên :
30/03/2014, 10:20
... subjected to peptide mass fingerprinting by MALDI-TOF or LIFT-TOF ⁄ TOF analysis From the MALDI-TOF spectrum of band (Fig 3C) (approximately 220 kDa), 195 out of 266 peptides were observed with identical ... theoretical digest of Pes1, thereby providing 35.9% sequence coverage of the NRP synthetase The LIFT-TOF ⁄ TOF post-source decay fragmentation of the selected peptides with monoisotopic masses of 1262.633 ... band Sequence coverage (37.2%) of this protein was obtained (198 out of 239 peptides) MALDI LIFT-TOF ⁄ TOF fragmentation of two peptides with monoisotopic masses of 1051.65 and 1172.559 Da revealed...
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Báo cáo hóa học: " Antibody contributes to heterosubtypic protection against influenza A-induced tachypnea in cotton rats" potx
Ngày tải lên :
20/06/2014, 01:20
... degree of protection in recipients of H1N1-immune serum suggested that the i.p inoculation of serum may not always transfer an equal amount of antibody into the circulation To assess the quantity of ... the magnitude of the immune response as well as the route of immunization is important in establishing antibody-mediated cross -protection The specificity of antibodies that provide protection against ... protection from virus-induced tachypnea shown in the figure Figure after passive transfer of heterosubtypic immune HAI Correlation of protection against tachypnea and sera titer Correlation of...
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Báo cáo khoa học: " Immunization of mice with recombinant P27/30 protein confers protection against hard tick Haemaphysalis longicornis (Acari: Ixodidae) infestation" pps
Ngày tải lên :
07/08/2014, 18:21
... difference was observed in those of nymphs and adults Engorged body weights of larval, nymphal, and adult ticks Immunization of mice with recombinant P27/30 protein confers protection against hard tick ... reduction of engorged weights was observed in immunized mice Molting periods of larval and nymphal ticks from dropping to molting Troponin I is a principal component of thin filamentslinked system of ... Comparison of feeding periods after attachment of larva, nymph, and adult H longicornis ticks on rP27/30-immunized mice and gene 10 protein-immunized control mice (*, p < 0.05) Fig Comparison of egg...
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Báo cáo khoa học: " Efficacy of VP2 protein expressed in E. coli for protection against highly virulent infectious bursal disease virus" pot
Ngày tải lên :
07/08/2014, 18:21
... snoisel lasrub gnirocS snoisel gnirocs rof detcelloc erew sasrub eht dna ,ytilatrom rof yliad derotinom erew snekcihc eht fo llA snoisel lasrub gnirocs rof desu erew dna slortnoc evitagen degnellahcnu ... saw tellep eht dna nim 01 rof 0053 ta degufirtnec erew sllec eht ,ylfeirB sisylana tolb nretseW yb demrifnoc saw nietorp 2PV fo noisserpxe ehT gnitsevrah erofeb h rof deunitnoc saw noitabucni ... ,noitaluclac gniwollof eht no desab detaluclac erew sretit ydobitna ehT sllec IS-12LB eht ni nietorp 2PV fo noisserpxe rof noitidnoc lamitpo eht dedivorp lCaN fo M 3.0 htiw dna h rof Co03 fo erutarepmet...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 1 potx
Ngày tải lên :
08/08/2014, 13:21
... 12 Type of loss 14 Need for lightning protection 14 Protection measures 15 Basic design criteria 15 Lightning Protection Level (LPL) 16 Lightning Protection Zone (LPZ) 18 Protection of structures ... favour of the EN standard This will occur at the end of August 2008 A Guide to BS EN 62305:2006 Protection Against Lightning www.furse.com Theory of lightning Theory of lightning Characteristics of ... Company’s Head Office, at the address shown on the reverse of this guide Contents Author’s note and New standards on lightning protection Theory of lightning Characteristics of lightning Transient...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 2 pdf
Ngày tải lên :
08/08/2014, 13:21
... corresponding to their equivalent type of loss R1 Risk of loss of human life R2 Risk of loss of service to the public R3 Risk of loss of cultural heritage Protection against lightning is required ... disruption of internal IT hardware caused by lightning transients The relationships of all of the above parameters are summarised in Table 2.1 Point of strike Source of damage Type of damage Type of ... 2.1: Sources of damage Type of damage Each source of damage may result in one or more of three types of damage The possible types of damage are identified as follows: D1 Injury of living beings...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 3 pptx
Ngày tải lên :
08/08/2014, 13:21
... PX Source of damage(1) Type of damage(1) Reduction of probability PA S1 D1 By protection measures against step and touch voltage BS EN 62305-2 Table NB.1 PB S1 D2 By Class of lightning protection ... fix the values of the mean relative amount of loss LX Guidance on the determination of loss LX for a particular type of damage (see page 13, Type of damage) can be found in Annex NC of BS EN 62305-2 ... This part of the suite of standards deals with protection measures in and around a structure and as such relates directly to the major part of BS 6651 36 The main body of this part of the standard...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 4 pps
Ngày tải lên :
08/08/2014, 13:21
... Maximum values of rolling sphere radius corresponding to the Class of LPS This method is suitable for defining zones of protection for all types of structures, particularly those of complex geometry ... radius, the zone of protection afforded by the protection angle is no longer valid (see Figure 4.13) Tip of air termination Height of an air termination rod above the reference plane of the area to ... air rods fitted to the roof of the structure could be employed See Figure 4.18a The height of the air rods utilised is now a function of the protection angle (Class of LPS), the spacing between...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 5 pps
Ngày tải lên :
08/08/2014, 13:21
... Length of electrode in metres w = Width of strip or diameter of circular electrode in metres d = Diameter of rod electrode in metres h = Depth of electrode in metres Q Table 4.11: Effect of salt ... chemical means of reducing soil resistivity, because of its very corrosive nature Salt along with other chemicals, has the disadvantage of leaching out of the surrounding soil after a period of time, ... Lightning Protection Components (LPC) The correct choice of material, configuration and dimensions of the lightning protection components is essential when linking the various elements of an LPS...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 6 pps
Ngày tải lên :
08/08/2014, 13:21
... comprehensive visual inspection of all parts of the LPS along with the LPMS measures Particular attention should be paid to evidence of corrosion or conditions likely to lead to corrosion problems The ... such, evaluating R4 Risk of loss of economic value determines whether the economic benefits of providing lightning protection is cost effective against the physical loss of equipment, not the losses ... after loss of control ● Loss of life – protection of hospital equipment 71 www.furse.com Scope | BS EN 62305-4 BS EN 62305-4 Electrical and electronic systems within structures LEMP Protection...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 7 doc
Ngày tải lên :
08/08/2014, 13:21
... “Standard” SPDs offer protection levels below the withstand level of the equipment or system they protect This is often 20% lower than the withstand value of equipment to take account of additive ... equipment terminals which is up to double the protection level of the SPD, UP This can cause a failure of the equipment to be protected, in spite of the presence of the SPD The acceptable or protective ... protective distance SPD*s of the overvoltage type (Type II and Type III) further ensure the protection and continuous operation of critical equipment, by offering low protection levels, in both...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 8 ppt
Ngày tải lên :
08/08/2014, 13:21
... An ESP TN/JP fitted at the BT socket would offer the required level of protection www.furse.com Example 2: Office block Consider a small five storey office block housing an insurance company (see ... is a simple example of a small country house located in Norfolk, England, and is treated as a single zone R1 – risk of loss of human life is evaluated The next example is an office building near ... the latter of which confirms the cost effectiveness of installing lightning protection measures compared to the potential consequential losses that could be incurred, without any protection Clearly,...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 9 docx
Ngày tải lên :
08/08/2014, 13:21
... away from a bank of four units (see Figure 6.5), the protective angle of 78.7 degrees (see Table 4.3, LPS Class IV) produces a radius of protection (at roof level) of 10m Each of the four AC units ... resistance value) Radius of protection at roof level A Radius of protection at AC unit height (0.75m) = 0.5 (for building materials) = 3.75m So: s = 0.3m Thus a separation distance of 1.5m (1.2m + 0.3m) ... = 1× 10−4 Therefore protection has been achieved with regard to loss of service to the public Decision As can be seen by this example of the office block the application of protection measures...
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A Guide to BS EN 62305:2006 Protection Against Lightning Part 10 ppsx
Ngày tải lên :
08/08/2014, 13:21
... Structure of BS EN 62305 10 BS EN 62305-1 General principles 11 Damage due to lightning 12 – Source of damage – Type of damage 13 13 Type of loss 14 Need for lightning protection 14 Protection ... Example 2: Office block – – – – – – – – – – – 101 Assigned values Definition of zones Collection areas Number of dangerous events Probability of damage Expected amount of loss Loss of human life ... amount of loss Loss of human life Unacceptable loss of service to the public Risk of loss of human life R1 Risk of loss of service to the public R2 Protection measures Solution A Decision LPS design...
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