... separated from CO2 using membrane reactors [50] and sent for purification using the pressure swing adsorption (PSA) process The purified hydrogen is stored An alternative prospective approach is to ... integrated approach to large-scale hydrogen production using solid fuels is proposed here, which aims to improve the sustainability of the energy system The conceptual design for this approach is ... post-combustion capture of CO2 from coal and natural gas in power plants is less economic than CO2 capture associated with hydrogen production when using these two energy sources [14], except when using...
Ngày tải lên: 05/09/2013, 14:58
4 10 using natural resources (earth science)
... Tony Randazzo Photographs: Every effort has been made to secure permission and provide appropriate credit for photographic material The publisher deeply regrets any omission and pledges to correct ... Tony Randazzo Photographs: Every effort has been made to secure permission and provide appropriate credit for photographic material The publisher deeply regrets any omission and pledges to correct ... Nature provides many materials that support life These natural resources help us to live and grow Some can be renewed Others will be used up someday It helps all life on Earth when people use natural...
Ngày tải lên: 26/04/2017, 11:28
... Enterobacter sp pp9c (GQ360072·1) Enterobacter sp WAB1938 (AM184277·1) Acinetobacter radioresistens strain Philippines-11 (EF446895·1) Pantoea sp P102 strain P102 (AF394539·1) Enterobacter sp SPi (FJ405368·1) ... Figure 2 (a) Optimization of temperature for IAA production; IAA produced ( ), L -tryptophan used ( ) (b) Effect of L -tryptophan on IAA production; IAA produced ( ), L -tryptophan used ( ) (c) ... Finally, the produced IAA and residual l-tryptophan were assayed Effect of precursor (L-tryptophan) on IAA production The effect of l-tryptophan concentrations on IAA production was studied using medium...
Ngày tải lên: 06/08/2013, 21:06
use of raw or processed natural pozzolans in concrete
... 232. 1R- 2 ACI COMMITTEE REPORT 1.6—Chemical and physical properties 1.7—Uses Chapter 2—Effects of natural pozzolan on concrete properties, p 232. 1R- 8 2.1—Concrete mixture proportions 2.2—Properties ... 3.4—General specification provisions 3.5—Methods of sampling and testing 3.6—Quality control and quality assurance Chapter 4—Concrete production using natural pozzolans, p 232. 1R- 18 4.1—Storage ... Chapter 5—Concrete applications for natural pozzolans, p 232. 1R- 19 5.1—Concrete masonry units 5.2—Concrete pipes 5.3—Prestressed concrete products 5.4—Mass concrete Chapter 6—Other uses of natural...
Ngày tải lên: 24/10/2014, 17:44
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
... of NADPH to POR-PChlide640 at pH 7.5 Attempts to remove NADPH from POR-PChlide640 and/or POR-PChlide650 by repeated NADPH binding studies The formation of POR-PChlide635, as opposed to PORPChlide640, ... examined using a Philips EM301G electron microscope RESULTS pH dependence of the spectral properties of POR pigment complexes Resuspension of maize PLB in low pH media results in a rapid irreversible ... conversion of photoconvertible POR-PChlide640 to a nonphotoconvertible species POR-PChlide635 lacking bound NADPH which rapidly reconverts to POR-PChlide640 in the presence of added NADPH POR-PChlide635...
Ngày tải lên: 22/02/2014, 04:20
a literature review of the effects of natural light on building occupant
... $115.75 per pupil per year These benefits total $320.03 per pupil per year Although the cost of providing trace amounts of ultraviolet in classrooms amounts to no more than $30 per student per year, ... fact that most of the profits come from peripheral items, like the produce department The produce department also has very low employee turnaround, the employees seem happier, and sales have increased ... several areas On the basis of the daily per pupil educational expenditure in 1984-85 ($21.42 per pupil space per day) and with a difference of 9.49 days of absence per year for students under different...
Ngày tải lên: 02/06/2014, 09:22
effects of natural foods on food selection and growth rates of cobia (rachycentron canadum) larvae
... marmorata), mudskipper (Pseudapocryptes elongatus) and Cobia (Rachycentron canadum) juveniles in hatchery have been being conducted to develop technology for seed production to apply into practice Cobia ... allowed proliferate prior to being fed as food for fish larvae (Støttrup and Norsker, 1997) Attempts have been made to culture several species such as Acartia spp., Tigriopus juponicus, Oithona spp., ... annual production was approximately 26,000; 4,000 and 1,500 tonnes, respectively Production in Vietnam was estimated to be 2,600 tonnes in 2009 (Nhu et al., 2010) Of the production reported to...
Ngày tải lên: 22/09/2015, 16:45
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
... (min.) 18 SMR L 16 ENR 50 14 12 10 0 phr phr 4phr phr phr 10 phr Filler Loading (phr) Filter loading (phr) Figure 2: The effect of organoclay loading on cure time of NR and ENR nanocomposites Comparing ... crystallisation NR also had shown excellent improvements in mechanical properties, thermal properties, barrier properties and flame-retardant properties when compounded with organoclays.7–11 In this ... offer unique properties, such as good oil resistance and low gas permeability coupled with high strength when compounded with the appropriate compounding ingredients Ultimately, natural rubber...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo " Effects of biosolids application on soil chemical properties in peri-urban agricultural systems " doc
... using inductively coupled plasma-mass spectrometry (ICP-MS, Perkin Elmer ELAN 6100) 2.5 Biosolids sampling and analyses Biosolids samples (one sample of chicken manure, and one sample of composted ... Vinh Phuc and Ha Tay provinces [8] No a Parameters Moisture Total nitrogen (Ntot) Total phosphorus (Ptot) Potassium (K) Total organic carbon (TOC) Copper (Cu) Zinc (Zn) Cadmium (Cd) Lead (Pb) ... between treatments at the same site (P
Ngày tải lên: 05/03/2014, 16:20
Báo cáo hóa học: " Effects of NiO nanoparticles on the magnetic properties and diffuse phase transition of BZT/NiO composites" potx
... microstructure Jpn J Appl Phys 2001, 40:5624-5629 Kishi H, Mizuno Y, Chazono H: Base-metal electrode-multilayer ceramic capacitors: past, present and future perspectives Jpn J Appl Phys 2003, 42:1-15 ... of NiO nanoparticles on the magnetic properties and diffuse phase transition of BZT/NiO composites Parkpoom Jarupoom1, Sukum Eitssayeam1, Kamonpan Pengpat1, Tawee Tunkasiri1, David P Cann2, and ... temperatures was used to fabricate the tested composites to determine the optimum sintering temperature which provided the optimum properties For pure BZT93 ceramics, the optimum sintering temperature...
Ngày tải lên: 20/06/2014, 23:20
Báo cáo lâm nghiệp: " The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance" pdf
... H CC parent tree species parent tree species other tree species othertree species Count of tree species/m2 Count of tree species/m 100% 100 b a b b M H CC a C L Treatment Treatment Fig Proportions ... mainly willow, aspen and alder The highest proportion in the species composition belongs to beech On each plot with parent stand, beech forms an independent homogeneous group, statistically different ... species composition of natural regeneration in comparison with the parent stand The more intensive the cutting (greater canopy opening), the less abundant the species from the parent stand in natural...
Ngày tải lên: 07/08/2014, 10:22
Effects of tunnel construction on nearby pile foundations 2
... A and B of Pier 20 dropped by approximately 20kPa and 40kPa respectively (Figure 3.14) Drop of pore pressure means negative excess pore pressure was developed The two points were approximately ... to support Piers 11, 14, 20 and 32 where as 1.8m diameters were used at Piers 37 and 38 All the piers are supported by a group of four piles except for Pier 32 with five piles The piles at Piers ... approximately 10 days the EPBM passed the monitoring section A further drop of the pore pressure of 20kPa and 30kPa below the steady state points were observed after the EPBM for NB tunnel passed...
Ngày tải lên: 15/09/2015, 17:09
Tài liệu The Effects of Childhood Stress on Health Across the Lifespan pptx
... and repeated exposure to intimate partner violence (IPV) We hope this publication provides practitioners, especially those working in violence prevention, with ideas about how to incorporate ... social competence.1 Individuals who have experienced ACE should receive help This may involve psychotherapy, theater workshops, movement therapy, hypnotherapy, expressive writing, diary programs ... the support of caring adults Appropriate support and intervention can help in returning the stress response system back to its normal baseline The Effects of Toxic Stress on Brain Development...
Ngày tải lên: 12/02/2014, 19:20
Tài liệu The Effects of Equipment Age on Spare Part Costs - A Study of M1 Tanks pptx
... (OPTEMPO) budget Funds from the OPTEMPO budget may also pay for civilian and contract labor for maintenance OMA OPTEMPO Budget Process For each major weapon system variant, the OMA OPTEMPO spare ... Team Abrams Operations Officer at Fort Hood, provided helpful information on Project Manager Abrams support for M1A2s Within RAND, Patricia Boren supplied deadlining parts data Ellen Pint and MAJ ... General Support (GS) or Direct Support/Reparable Exchange (DS/RX) programs Ibid., p (mission-related O&M spending) and p 33 (aircraft O&M spending) The estimate of mission-related O&M spending...
Ngày tải lên: 17/02/2014, 22:20
Tài liệu The Effects of Equipment Age On Mission Critical Failure Rates pptx
... β1x1 + L + β p x p + β11x1 + L + β pp x p + β12 x1x +L + β 1p x1x p + L + β p −1x p −1x p , where µ is the mean of Y, system failures during the study period, and p is the number of explanatory variables ... Total Parts Demand (during Study Period) per Subsystem by Age 3.8 Parts Demand per Part Type by Age 3.9 Predicted Mean Part Failures Versus Tank Age (Location 1, 180 days) 3.10 Predicted ... Multiple Imputation Approach 3.17 Negative Binomial Regression of Power Train Failures on Age, Usage, and Location Variables (N = 1,480), with Multiple Imputation Approach 3 .18 Negative...
Ngày tải lên: 18/02/2014, 17:20
Tài liệu A PRELIMINARY ANALYSIS OF THE EFFECTS OF HR 2454 ON U.S. AGRICULTURE doc
... energy among production inputs because natural gas is the primary input (70-90 percent of cost of producing nitrogen fertilizer) The potential impacts of higher energy costs on production costs ... Short-Term Impacts on Agriculture To assess the short-term impacts we use the EPA energy price impacts to determine the impacts of HR 2454 on the prices paid indices (PPIs) for agricultural inputs over ... wheat, but as a proportion of total operating costs, they are typically lower Per acre energy input costs are lowest for soybeans production, which account for 31 percent of total operating costs...
Ngày tải lên: 21/02/2014, 01:20