dispersants polymers and chelants low pressure boilers only

Inactivation of gram negative bacteria by low pressure RF remote plasma excited in n2 o2 mixture and SF6 gases

Inactivation of gram negative bacteria by low pressure RF remote plasma excited in n2 o2 mixture and SF6 gases

... against E coli O157, K pneumonia, P mirabilis, and E sakazakii on the standard medium decreased, while O2 percentage was increased and only 2% O2 pressure was sufficient to completely deactivate ... 2, and Figure illustrates the influence of plasma pressure on bacterial count (exp 1-6 in table 1) Minimum CFU values were seen using 1.24 mbar pressure The effect of O2 percentage (exp 5,7, and ... operation conditions using N2-O2 mixture and pure SF6 gas, respectively Polymers Polyethylene (PE), polyethylene terephthalate (PET), and polyvinyl chloride (PVC) polymers, commercially used for bio-application,...

Ngày tải lên: 18/05/2014, 20:36

5 269 0
api 2000  venting atmospheric and  low pressure storage tanks   bản tiếng việt ( tham khảo nha)

api 2000 venting atmospheric and low pressure storage tanks bản tiếng việt ( tham khảo nha)

... 38 C-7-Hot ng thớ im PressureNacuum (Double mng) 39 v Trang 12 Trang Bn Yờu cu IA Nonna1 thụng giú (SCFH ca Air mi thựng mi gi ca Liquid Flow) A n v Anh IB Nonna1 trỳt ... trờn mt t v mt phn Xe tng Belowground A ting Anh n v 23 Cỏc yu t mụi trng 6B cho t lnh trờn mt t v Partia11y Xe tng Belowground Cỏc n v B Metric ... thit b thụng giú 13 4.6 Kim tra v ỏnh du cỏc thit b thụng giú 15 lnh trờn mt t v BELOWGROUND xe tng 17 5.1 Tng 17 5.2 Nguyờn nhõn ca quỏ ỏp hoc hỳt chõn khụng ...

Ngày tải lên: 05/09/2014, 15:48

119 750 2
High-intensity Low-pressure Electrodeless Mercury-Argon Lamp for UV Disinfection of Wastewater

High-intensity Low-pressure Electrodeless Mercury-Argon Lamp for UV Disinfection of Wastewater

... generates a magnetic field The gas sealed inside the lamp is excited and ionized by the magnetic field, and so discharge of the gas occurs and light is emitted Thus the discharge produces UV emission ... flame, matching box, and automatic cleaning mechanism for protective quartz sleeves (See fig 3) Structurally, each current path is composed of UV lamps, a submerged weir and an overflow weir to pass ... is unaffected even when a flow rate changes In particular, the problem of charge in disinfection performance due to divagation at a small flow - 72 - Journal of Water and Environment Technology,...

Ngày tải lên: 05/09/2013, 09:08

6 265 0
 selection and sizing of pressure relief valves

selection and sizing of pressure relief valves

... pressure on the operational characteristics (opening pressure, closing pressure, and relieving capacity) blowdown – the difference between actual lifting pressure of a pressure relief valve and ... should be set at or below this point When the pressure relief valve to be used has a set pressure below 30 psig, the ASME Code specifies a maximum allowable overpressure of psi Pressure relief valves ... the application, this pressure value can simultaneously be the SET PRESSURE and/ or DESIGN PRESSURE FIGURE – HIERARCHY OF PRESSURE VALUES Back Pressure Considerations Back pressure in the downstream...

Ngày tải lên: 11/01/2014, 15:10

21 600 2
Đề tài " Branched polymers and dimensional reduction " pptx

Đề tài " Branched polymers and dimensional reduction " pptx

... Branched polymers and dimensional reduction By David C Brydges and John Z Imbrie* Abstract We establish an exact relation between self-avoiding branched polymers in D + continuum dimensions and the ... self-avoiding loops and vesicles [Car01] depend on a reduction of branched polymers to the zerodimensional iϕ3 theory BRANCHED POLYMERS AND DIMENSIONAL REDUCTION 1029 Our Theorems 1.1 and 1.3 provide ... (ij) (β, τ )Qu = Q(f (ij) (β, τ )u), and Q = d + iV and iV lowers the degree by one d dβ CN f (β, τ ) = because the integral annihilates the part of lower degree and also annihilates the part in...

Ngày tải lên: 05/03/2014, 23:20

22 327 0
Financing Supportive Housing with Tax-Exempt Bonds and 4% Low-Income Housing Tax Credits potx

Financing Supportive Housing with Tax-Exempt Bonds and 4% Low-Income Housing Tax Credits potx

... used during construction only and bonds used for both construction and permanent financing Bonds for Construction Financing Only Bonds must be used during construction and must cover at least ... construction only, to be taken out at the conversion to permanent financing, the project can benefit from the tax credits and lower construction interest, and use more favorable financing and/ or grant ... generally very competitive due to the low income targeting (most private activity bonds only target 20%-40% of units for low- income) and public agencies are under pressure to increase the affordability...

Ngày tải lên: 06/03/2014, 04:20

22 435 0
Báo cáo khoa học: A characteristic Glu17 residue of pig carnitine palmitoyltransferase 1 is responsible for the low Km for carnitine and the low sensitivity to malonyl-CoA inhibition of the enzyme docx

Báo cáo khoa học: A characteristic Glu17 residue of pig carnitine palmitoyltransferase 1 is responsible for the low Km for carnitine and the low sensitivity to malonyl-CoA inhibition of the enzyme docx

... H128P, PigE17DCPT1B and HumanD17ECPT1B, and from to 500 lm for D18PigCPT1B and D28PigCPT1B) The assay was performed at mm carnitine as standard To analyze PigE17DCPT1B and HumanD17ECPT1B mutants, ... PigE17D–pHW010, and HumanD17E–pHW010 These constructs were linearized in the GAPDH gene promoter by digestion with AvrII (constructs P50H, P128H and PigE17D) or BspMI (constructs H50P, H128P and HumanD17E), ... human CPT1B sequences before (H50P and P50H) and after (H128P and P128H) TM1 and TM2 respectively (Fig 2A) These chimeras had similar specific activities (Table 1) and were expressed in P pastoris...

Ngày tải lên: 16/03/2014, 04:20

9 551 0
Báo cáo khóa học: C-, 15N- and 31P-NMR studies of oxidized and reduced low molecular mass thioredoxin reductase and some mutant proteins docx

Báo cáo khóa học: C-, 15N- and 31P-NMR studies of oxidized and reduced low molecular mass thioredoxin reductase and some mutant proteins docx

... template and the oligonucleotides FAD(CA)-1 and FAD(CA)-2 as primers (Table 1) The 1006-bp amplication product was digested with EcoRI and BamHI and ligated into the vector pMal-c2 (New England Biolabs) ... TARFH2 and FMNH2, are C(5a), C(7), C(9a) and C(10a), and as already mentioned above, C(2) (Fig 7B) With respect to the 13C chemical shifts of FMNH2, C(2), C(5a), C(9a) and C(10a) of wild-type and ... containing mM EDTA and mM Na2SO3 and the suspension was ultrasonically treated and centrifuged The supernatant (15 mL) was passed through a column of amylose resin (New England Biolabs; 20 ã 30...

Ngày tải lên: 16/03/2014, 16:20

16 378 0
wo3 thin film sensor prepared by sol–gel technique and its low-temperature sensing properties to trimethylamine

wo3 thin film sensor prepared by sol–gel technique and its low-temperature sensing properties to trimethylamine

... 4f5/2 and W 4f7/2 are found to lie at 37.1 and 35.20 eV, respectively and are contributed to lattice tungsten in the WO3 crystal 3.2 Gas sensing properties of the thin film sensors Results and discussion ... spectrum, (b) O 1s peak, and (c) W 4f5/2 and W 4f7/2 peaks that the WO3 thin film can be used to detect TMA at low temperature Fig shows the relationship between the gas sensitivity and TMA concentrations ... , CO, and water vapor were measured A given amount of each gas was injected into the chamber and mixed by a fan for 30 s The sensitivity to gases, S, is defined as S = V g /V a , where Vg and Va...

Ngày tải lên: 20/03/2014, 13:12

4 407 0
mechanical properties of polymers and composites nielsen doc

mechanical properties of polymers and composites nielsen doc

... properties of polymers and composites / Lawrence E Nielsen Robert F Landel — 2nd ed., rev and expanded p cm — (Mechanical engineering ; 90) Includes bibliographical references and index ISBN ... Common Polymers Conversion Factors for Moduli, Stress, and Viscosity Glass Transition Temperatures and Melting Points of Polymers Relations Between Engineering Moduli and Tensor Moduli and Tensor ... pairs of polymers polypropylene ( T g = C) and polyisobutylene (Tg = -70 C), and poly(vinyi chloride) (Tg=87 C) and poly(vinylidene chloride) (Tg =- 19°C) The symmetrical polymers have lower glass...

Ngày tải lên: 22/03/2014, 12:20

138 878 0
mechanical properties of polymers and composites nielsen pot

mechanical properties of polymers and composites nielsen pot

... properties of polymers and composites / Lawrence E Nielsen Robert F Landel — 2nd ed., rev and expanded p cm — (Mechanical engineering ; 90) Includes bibliographical references and index ISBN ... Common Polymers Conversion Factors for Moduli, Stress, and Viscosity Glass Transition Temperatures and Melting Points of Polymers Relations Between Engineering Moduli and Tensor Moduli and Tensor ... pairs of polymers polypropylene ( T g = C) and polyisobutylene (Tg = -70 C), and poly(vinyi chloride) (Tg=87 C) and poly(vinylidene chloride) (Tg =- 19°C) The symmetrical polymers have lower glass...

Ngày tải lên: 22/03/2014, 13:20

138 438 0
Báo cáo khoa học: The thermodynamic analysis of protein stabilization by sucrose and glycerol against pressure-induced unfolding The typical example of the 33-kDa protein from spinach photosystem II docx

Báo cáo khoa học: The thermodynamic analysis of protein stabilization by sucrose and glycerol against pressure-induced unfolding The typical example of the 33-kDa protein from spinach photosystem II docx

... understand how high hydrostatic pressure induces the refolding of proteins and how sugars and salts influence this refolding To this end, we used the effects of both hydrostatic pressure and osmotic ... degree of unfolding (a) was plotted against pressure to draw the unfolding curve and to determine the half-denaturation pressure, P1/2 The free energy and standard volume change were calculated from ... its very low DG of unfolding at pH 6.0 and 20 °C ()3.5 kcalÆmol)1) and because of its large standard DV ()120 mLÆmol)1) The response of the 33-kDa protein to pressure is completely reversible [11]...

Ngày tải lên: 31/03/2014, 01:20

8 527 0
Behavior of Pipe Piles in Sand : Plugging and Pore-Water Pressure Generation During Installation and Loading pptx

Behavior of Pipe Piles in Sand : Plugging and Pore-Water Pressure Generation During Installation and Loading pptx

... made to expand the size of the database and to improve its interpretation (Olson and Al-Shafei 1988, Olson 1990) This effort has continued in Iskander and Olson (1992) and Olson and Iskander (1994, ... 50 250 Relative Density loose sand medium qlim (ksf) sand-silt dense Nq silt medium sand dense sand-silt dense sand very dense sand-silt dense gravel very dense sand 2.3 The Database A database ... histories (Olson and Iskander 1994, Iskander and Olson 1992) The scatter between measured and predicted pile capacities is significantly larger for piles in sand than piles in clay (Olson and Dennis,...

Ngày tải lên: 31/03/2014, 16:20

284 2,1K 0
corrosion of polymers and elastomers

corrosion of polymers and elastomers

... metals and ceramics.” Others have limited the term to thermoplastics only Many engineering polymers are reinforced and/ or alloy polymers (a blend of polymers) Polyethylene, polypropylene, PVC, and ... fluorinated fluorocarbon polymers such as PTFE, FEP, and PPA called perfluoropolymers, and the partially fluorinated polymers such as ETFE, PVDF, and ECTFE that are called fluoropolymers The polymeric ... Thermoplastic polymers can be either homopolymers or copolymers Alloy polymers are blends of different polymers In general, thermoplastic materials tend to be tougher and less brittle than thermoset polymers, ...

Ngày tải lên: 02/04/2014, 16:27

590 500 0
corrosion of polymers and elastomers corrosion engineering handbook second edition

corrosion of polymers and elastomers corrosion engineering handbook second edition

... metals and ceramics.” Others have limited the term to thermoplastics only Many engineering polymers are reinforced and/ or alloy polymers (a blend of polymers) Polyethylene, polypropylene, PVC, and ... fluorinated fluorocarbon polymers such as PTFE, FEP, and PPA called perfluoropolymers, and the partially fluorinated polymers such as ETFE, PVDF, and ECTFE that are called fluoropolymers The polymeric ... Thermoplastic polymers can be either homopolymers or copolymers Alloy polymers are blends of different polymers In general, thermoplastic materials tend to be tougher and less brittle than thermoset polymers, ...

Ngày tải lên: 02/04/2014, 16:27

591 835 0
Biodegradable Polymers and Their Practical Utility

Biodegradable Polymers and Their Practical Utility

... pulp and metalized inhouse The film is printable with solvent and with water-based and UV inks and has an excellent luster and sheen for pack presentation NatureFlex NM builds on the longstanding ... 17 Chandra, R and Rustgi, R (1998) Biodegradable polymers Progress in Polymer Science, 23, 1273 18 Chandy, T and Sharma, C.P (1990) Chitosan – as a biomaterial Biomaterials Artificial Cells and ... Natural Polymers 1.1 Natural Polymers Biopolymers are defined as polymers formed under natural conditions during the growth cycles of all organisms Therefore they are also named natural polymers...

Ngày tải lên: 22/04/2014, 22:38

34 358 0
nmr spectra of polymers and polymer additives

nmr spectra of polymers and polymer additives

... polyethylene and ethylene copolymers and derivatives; (B) polypropylene and propylene copolymers and derivatives; and (C) polymers and copolymers based on other 1-olefins Many of these polymers, ... together where needed and allowed to react) Except at very low molecular weights (MWs), these materials are insoluble in most solvents Other examples of network polymers are epoxies and melamine–formaldehyde ... blocky: I.T alternating: I.U or random: I.V or a second chain can be grafted onto the first: I.W Blocky and random copolymers are the most common In block copolymers, the length of the block...

Ngày tải lên: 01/06/2014, 10:11

660 1,1K 0
fluorescence of supermolecules, polymers, and nanosystems, 2008, p.463

fluorescence of supermolecules, polymers, and nanosystems, 2008, p.463

... wrote: They take the wood and make slices of it as thin as possible, and not very large, and place them in clear spring water, that must be very good and transparent, and they leave them all the ... applied to transonic and supersonic ow studies, and it is now commonly used in industrial wind tunnels The problem is more difcult at low speed because of the smaller variations in pressure Figure ... stretch from spectroscopy and sensor technology to microscopy and imaging, to single molecule detection, to the development of novel uorescent probes, and to proteomics and genomics The Springer...

Ngày tải lên: 04/06/2014, 14:35

463 307 0
Báo cáo hóa học: " Effects of obesity and chronic low back pain on gait" docx

Báo cáo hóa học: " Effects of obesity and chronic low back pain on gait" docx

... gait, as assessed by prolonged stance duration and lower velocity and step length if compared to OG and healthy subjects, and a less physiological knee and ankle strategy It can be speculated that ... was lower in OLG and OG if compared to CG and the peak of absorbed ankle power (APmin index) during the impact on the ground was significantly greater in OLG and OG than CG (p < 0.05) OLG and ... anatomical landmarks of the subject Prior to testing, the system was calibrated to assure accuracy and to allow the computation of each marker’s 3D coordinates using a right-handed coordinate system and...

Ngày tải lên: 19/06/2014, 08:20

7 379 0
MECHANICAL PROPERTIES OF POLYMERS AND COMPOSITES pot

MECHANICAL PROPERTIES OF POLYMERS AND COMPOSITES pot

... properties of polymers and composites / Lawrence E Nielsen Robert F Landel — 2nd ed., rev and expanded p cm — (Mechanical engineering ; 90) Includes bibliographical references and index ISBN ... Common Polymers Conversion Factors for Moduli, Stress, and Viscosity Glass Transition Temperatures and Melting Points of Polymers Relations Between Engineering Moduli and Tensor Moduli and Tensor ... pairs of polymers polypropylene ( T g = C) and polyisobutylene (Tg = -70 C), and poly(vinyi chloride) (Tg=87 C) and poly(vinylidene chloride) (Tg =- 19°C) The symmetrical polymers have lower glass...

Ngày tải lên: 26/06/2014, 23:20

138 413 1
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