2— definition of a natural pozzolan

use of raw or processed natural pozzolans in concrete

Ngày tải lên : 24/10/2014, 17:44

... constituents and the variable mineralogical and physical characteristics of the active materials Most natural pozzolans contain substantial amounts of constituents other than silica, such as alumina and ... Performance Specification for Hydraulic Cement American Association of State Highway and Transportation Officials (AASHTO) AASHTO M 295 Standard Specification for Coal Fly Ash and Raw or Calcined Natural ... amount of amorphous material usually determines the reactivity of a natural pozzolan The constituents of a natural pozzolan can exist in various forms, ranging from amorphous reactive materials...

24
378
0

Effects of recycled aggregates on concrete properties

Ngày tải lên : 05/10/2015, 19:06

... combination of natural aggregate (NA) and recycled concrete aggregate (RCA) is obviously more sustainable and economical than using conventional natural aggregate concrete (NAC) alone The aim of ... aggregate crushing value of natural aggregate is 16.33 % and RCA is 28.57 % On the other hand, a study by Prakash and Krishnaswamy (1996) showed that the aggregate crushing value of natural aggregate ... Value of RCA and NA to be significant Prakash and Krishnaswamy (1996) obtained a value of 11.93 % for natural aggregate and 19.78 % for RCA It is to be noted here that Prakash and Krishnaswamy (1996)...

205
585
0

Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot

Ngày tải lên : 22/02/2014, 04:20

... that are essential for enzyme activity Proc Natl Acad Sci USA 92, 724–728 30 Tanaka, N., Takamas, T., Nakanishi, M., Deyashiki, Y., Hara, A & Mitsui, Y (1998) Crystal structure of the ternary ... etioplasts of mutants such as the cop1 mutant of Arabadopisis [23] and the lip1 mutant of pea [24], which are both deﬁcient in PORPChlide650 and have been shown to be characterized by a parallel ... mM NADPH, indicating that POR-PChlide640 binds NADPH comparatively weakly at pH 6.5 Interestingly, even at high levels of NADPH, a single saturating ﬂash was unable to Fig NADPH concentration...

11
637
0

a literature review of the effects of natural light on building occupant

Ngày tải lên : 02/06/2014, 09:22

... lights all day have decreased mental capabilities, agitated physical behavior, and fatigue 18 Daylight also produces ultraviolet radiation Dr Ott claims, “trace amounts of certain wavelengths of ... light…can have a staggering affect on your health” (Liberman 1991) Ott also said that the trace amounts of UV light, measured as parts per trillion, are important because “we need a basic amount [of ... hospital, it was rated among 15 national hospitals as a “Hospital with a Heart” for its philosophy of patient-based care In patient satisfaction surveys of 1,000 hospitals nationwide, McNeil was...

58
1.4K
1

effects of natural foods on food selection and growth rates of cobia (rachycentron canadum) larvae

Ngày tải lên : 22/09/2015, 16:45

... taxa), Copepoda (4 taxa) and Nauplius Table 4.3 shows that there was the appearance of the taxon in the rotifera and nauplii of copepods such as Brachionus plicatilis, Brachionus pala and Nauplius ... Nauplius from day to day 10, while Laophonte brevirostris has just appeared from day to day and Schmakeria clubia, Acartia discaudata, and Microsetella norvegica have appeared from day to day 10 4.3.1.2 ... general Acartia, Pseudodiaptomus, Sinocalanus, Eurytemora, Gladioferens, Parvocalanus, Bestiolina, Temora, Centropages, and Labidocera were proposed for first feeding Nauplii of some Acartia spp are...

60
550
0

Báo cáo vật lý: "Comparison of the Effects of Organoclay Loading on the Curing and Mechanical Properties of Organoclay-Filled Epoxidised Natural Rubber Nanocomposites and Organoclay-Filled Natural Rubber Nanocomposites" pot

Ngày tải lên : 07/08/2014, 14:20

... the nanometer range in the NR matrix XRD and TEM results indicated that the organoclay were intercalated and exfoliated at phr of organoclay and partly exfoliated and re-aggregated at 10 phr of ... L and ENR 50, elongation at break increased with increasing filler loading According to Ardhyanata et al.,15 Ismail and Munusamy16 and Varghese et al.,13 this observation suggests that intercalation ... with minimal voids or cavities The appearance of a rough surface is due to the fact that failure starts on inhomogeneities located away from that of the major fracture plane Final fracture occurs...

23
406
0

Báo cáo " Effects of biosolids application on soil chemical properties in peri-urban agricultural systems " doc

Ngày tải lên : 05/03/2014, 16:20

... experiment b cab/squ: Cabbage (Brassica oleacea L.) and squash (Benicasa hispida L.) 2.3 Soil sampling preparation strategy and sample For assessment of the impact of biosolids on agricultural soils, ... [33] Land and Water's methods manual, ACIAR and CSIRO Land and Water, 2003 T Streck, J Richter, Heavy metal displacement in a sandy soil at the field scale Measurements and parameterization of sorption, ... especially as regards trace metal accumulation and solubility Materials and methods 2.1 Location of the research areas Soil samples were collected from peri-urban areas of Hanoi City including Ha...

11
406
0

Báo cáo khoa học: Effects of cardiomyopathic mutations on the biochemical and biophysical properties of the human a-tropomyosin docx

Ngày tải lên : 16/03/2014, 18:20

... (5¢-GAC AAATACTCTGAAGTACTCAAAGATGCCCAG-3¢), SK TM-1R (5¢-CTGGGCATCTTTGAGTACTTCAGAGTA TTGTC-3¢), SKTM-K70T (5¢-AAAGATGCACAGGAG Muscular actin was puriﬁed from acetone powder of chicken pectoralis ... charge of Tm All the mutant amino acids are involved in interchain and intrachain interactions and therefore are important for the stabilization of the parallel coiled-coil structure A number of ... K70T; and lane 5, mutant Tm E180G migrated with an apparent molecular mass of 36 kDa and slightly slower migration was observed for the mutant K70T Mutations A6 3V and K70T are located at the...

9
603
0

Báo cáo "Effects of Zn content on the magnetic and magnetocaloric properties of Ni-Zn ferrites " pdf

Ngày tải lên : 22/03/2014, 11:20

... saturation magnetization MSt calculated with assuming that exchange interaction λab is strongest therefore magnetic moments of A and B sublattices are antiparallel to each other and MSt increases ... (Chapter 3) S Chaudhary, V.S Kumar, S.B Roy, P Chaddah, S.R Krishnakumar, V.G Sathe, A Kumar, D.D Sarma, J Magn Magn Mater 202 (1999) 47 N Chau, D.T Hanh, N.D Tho, N.H Luong, J Magn Magn Mater ... XRD patterns of studied samples All samples have single phase f.c.c spinel structure and lattice parameters are determined and listed in Tab It is clear from this table that lattice constant and...

8
452
0

Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc

Ngày tải lên : 20/06/2014, 22:20

... to natural acceptor in the all SZO NWs It indicates that the Ag dopant can act as a desirable acceptor in ZnO NWs The low temperature PL studies reveal that the Ea of the Ag acceptor is calculated ... increased mobility The EDS analysis reveals the presence of Ag, Zn, and O elements Quantitative analysis of EDS reveals that Ag concentrations are proportional to those of the targets, and measured ... where Ea is the activation energy of PL emission for thermal quenching, I0 and A are scaling factors, and k is Boltzmann’s constant The activation energies of the A0 X formation are calculated to...

8
509
0

Báo cáo hóa học: " Effects of NiO nanoparticles on the magnetic properties and diffuse phase transition of BZT/NiO composites" potx

Ngày tải lên : 20/06/2014, 23:20

... Gobwute Rujijanagul*1 Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand Faculty of Materials Science, Department of Mechanical Engineering, ... Z, Ang C, Guo R, Bhalla AS: Piezoelectric and strain properties of Ba(Ti1−xZrx)O3 ceramics J Appl Phys 2002, 92:1489-1493 11 Das SR, Choudhary RN, Bhattacharya P, Katiyar RS, Dutta P, Manivannan ... structural characteristics of lanthanum-doped barium titanate ceramics J App Phys Soc 1999, 86:6355-6366 23 Gulwade D, Gopalan P: Study of diffuse phase transition in BaTiO3– LaAlO3 J Alloys Compd...

12
400
0

Báo cáo lâm nghiệp: " The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance" pdf

Ngày tải lên : 07/08/2014, 10:22

... CC a M a a a a a a C L M H CC C Acer Acer Carpinus Carpinus a a a a a a a C L M H CC C L b M b H b CC Treatment Treatment Fig Amount and variability of natural regeneration older than one year ... 0.05) a 0.12 a Abies alba Mill 0.20 a Carpinus betulus L Salix caprea L 6.20 b all Fagus sylvatica L Species Table Density of natural regeneration of all and older-than-one-year individuals ... research on approaches to naturally regenerated beech managed forests (NAT-MAN, D22), Alterra: 16 Xiao Z., Zhang Z., Wang Y., 2004 Dispersal and germination of big and small nuts of Quercus serrata...

12
357
0

Báo cáo y học: "Effects of intravenous furosemide on mucociliary transport and rheological properties of patients under mechanical ventilation" pot

Ngày tải lên : 12/08/2014, 18:21

... mucociliary clearance In patients with respiratory failure and MV, many factors can potentially impair MCT, such as ventilation with a high concentration of oxygen, the activation of inflammatory ... machine adapted from King et al [18] This machine consisted of a cylinder of compressed air serving as gas supply, a solenoid valve that controlled the release of gas, and a cylindrical acrylic ... between stress and strain, representing the ratio between viscosity and elasticity (tan δ) Statistical analysis Statistical analysis was performed by profile analysis [13], which takes into account...

7
291
0

Effects of tunnel construction on nearby pile foundations 2

Ngày tải lên : 15/09/2015, 17:09

... (1999) also carried out a similar analysis as Broms & Pandey (1987) The lateral and axial responses of a single pile were analysed in two-stage approach In the first stage, vertical and lateral greenfield ... in Appendix A (see Figure A. 2a) The averaging strain (from Equation 3.4) is compared with strain from each individual strain gauge at the same level The large variation of strain particularly at ... was identified as shown in Figure 2.12 (shaded area) As volume loss increases, load transfer from pile base to shaft changes gradually and once full mobilisation of shaft resistance has been achieved,...

163
178
0

EFFECTS OF RESIDUAL COD ON MICROBIAL GROWTH KINETICS IN A NITRIFYING UCBR

Ngày tải lên : 05/09/2013, 08:40

... maintained at above 4.0 mg/L throughout the experiment pH of the reactor was maintained at 7.5 + 0.3 with manual addition of acid (HCl) and base (NaHCO3) Approximately 15 ml of biofilm particles ... nitrification process Wat Res., 29(3), 953-963 Standard Methods for the Examination of Water and Wastewater (1995) 19th ed., American Public Health Association/ American Water Works Association/ Water ... half saturation concentration, Ks, had a low sensitivity The purpose of a sensitivity analysis is to check if the model parameters can be adequately determined with the aid of the available data...

6
446
0

Tài liệu The Effects of Childhood Stress on Health Across the Lifespan pptx

Ngày tải lên : 12/02/2014, 19:20

... death of a loved one, a natural disaster, a frightening accident, and family disruptions such as separation or divorce If a child has the support of a caring adult, tolerable stress can usually ... a perpetrator of abuse and/or neglect Protective Factor A characteristic that decreases the likelihood of a child becoming a victim of or a parent/ caregiver becoming a perpetrator of abuse and/or ... Health Across the Lifespan Community, Organizational, and Social Level Strategies Public Awareness Campaigns Public awareness campaigns have long been used as a prevention strategy for a variety...

18
527
0

Tài liệu The Effects of Equipment Age on Spare Part Costs - A Study of M1 Tanks pptx

Ngày tải lên : 17/02/2014, 22:20

... to enable better fleet analysis and management Mitigating Factors Can Hamper Studies of an Age-Cost Relationship Cost Data Are Lacking in Key Areas A critical factor hampering studies of an age-cost ... Operation and Maintenance OMA Operation and Maintenance, Army OMAR Operation and Maintenance, Army Reserve OMNG Operation and Maintenance, National Guard OPTEMPO Operating Tempo OSMIS Operating and ... year-ofmanufacture (YOM) from the year of analysis, where YOM data was obtained from The Army Maintenance Management System (TAMMS) Equipment Database (TEDB) For example, a tank manufactured any...

86
578
0

Tài liệu The Effects of Equipment Age On Mission Critical Failure Rates pptx

Ngày tải lên : 18/02/2014, 17:20

... Reliability of Electronic Equipment AMC Army Materiel Command AMSAA Army Materiel Systems Analysis Activity ANOVA Analysis of Variance ASA(ALT) Assistant Secretary of the Army for Acquisition, ... Just as we transformed the age variable, we transformed the accumulated usage variable via mean centering Updays This variable captured the total number of days a tank was available to fail—i.e., ... Colorado, and Texas The age, location, usage, and failure data came from Army maintenance database extracts from April 1999 through January 2001.4 Our primary analytical techniques included imputation...

125
540
0

Tài liệu A PRELIMINARY ANALYSIS OF THE EFFECTS OF HR 2454 ON U.S. AGRICULTURE doc

Ngày tải lên : 21/02/2014, 01:20

... EPA has conducted its own analysis of returns from offsets that take into account the costs of implementing land management practices EPA’s analysis projects annual net returns to farmers of about ... Regional Considerations Using a regional model of the U.S agricultural sector, Lewandrowski et al examined the potential for carbon sequestration at various carbon prices At a carbon price of $34 ... from grassland) Figure shows the regional breakout of the potential carbon dioxide equivalent sequestered through afforestation on cropland and pastureland and through soil management at a carbon...

13
651
0