fluidization in silicon metal production
Investigation on K2Ti4O9 Whisker Absorbent and Applications in Heavy Metal Ions Removal
Ngày tải lên :
05/09/2013, 09:38
... metallic ions in water, as the quantity of absorbent (PTW) increases, the active sites of the absorbent increases, which results in more metallic ions absorbed and less ions remain in water in ... It is fabricated by mixing titanium oxides and potassium oxides in a certain ratio, with a suitable calcination flux, and calcining at 900 – 1100°C The reaction during calcination is: 4TiO2 + K2O→ ... granules, such as spherule or honeycomb, of PTW by mixing and calcining with a suitable binder material Research in this area is being done in Shandong University ACKNOWLEDGMENT This research was...
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Application and Comparison of Two Biotic Ligand Models Predicting Copper Toxicity and Accumulation in Heavy Metal Tolerant Moss
Ngày tải lên :
05/09/2013, 10:15
... flux non-competitively by binding to a binding site other than BL In addition, changes in the conformation of BL caused by this binding of proton result in decreases in the number of BL The conformation ... (2007) investigated the effects of pH on short-term uptake of manganese and cadmium into Chlamydomonas reinhardtii, and they concluded that the increase in proton concentration inhibits the metal internalization ... were fitted to eq using KaleidaGraph ver 4.0 In order to predict the copper accumulation in the moss while taking the metal speciation and the effects of competing cations into consideration,...
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Tài liệu Fiber in Broadcast and Production Facilities docx
Ngày tải lên :
21/12/2013, 07:17
... tools and training, be repaired in the field Fiber Casing Fiber Core polishing creates a rounded finish Ø3 n2 Ø3> Critical angle defined by Snells Law Ø1=Ø2 Light is reflected into cladding along ... that when working with fiber, relying on factoryterminated cables offers several advantages over field termination, including performance and savings in labor, material costs and installation ... wisely Against this backdrop, using factory-terminated fiber in stations makes a lot of sense The labor savings associated with using factoryterminated cables in most instances makes it a more economical...
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STUDIES ON CATTLE MILK AND MEAT PRODUCTION IN FOGERA WOREDA: PRODUCTION SYSTEMS, CONSTRAINTS AND OPPORTUNITIES FOR DEVELOPMENT doc
Ngày tải lên :
08/03/2014, 23:20
... meat production potential is found in this woreda in which the production and productivity has been severely declined due to production constraints such as lack of production inputs and lack of information ... beef in the woreda -To assess the production constraints of milk and meat of the woreda and to indicate the interventions for the indicated production constraints LITERATURE REVIEW 2.1 Origin and ... face difficulties in getting full information on the breeds they 22 are going to buy Other factor hampering milk production include an inadequate feed base, high cost of bought -in feeds, shortage...
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Diploma in Mechanical Engineering (Production & Automobile) doc
Ngày tải lên :
09/03/2014, 00:20
... Shop Work: Ex-1 Planning and sawing practice Ex-2 Making of Lap Joint Ex-3 Making of Mortise and tendon Joint Ex-4 Making of Briddle Joint Ex-5 Making of Dovetail Joint Ex-6 Making of any one utility ... Engineering Lab OR Electronics Engineering Lab Information Technology Lab OR Applied Mechanics Lab Workshop Practice OR Engineering Drawing Discipline & General Proficiency Evaluation Scheme Internal ... Ex-2 To prepare metal surface for painting, apply primer and paint the same Ex-3 To prepare a metal surface for spray painting, Ist spray primer and paint the same by spray painting gun and compressor...
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mitigating water pollution in vietnamese aquaculture production and processing industry the case of pangasius and shrimp
Ngày tải lên :
13/03/2014, 18:58
... eco-agro industrial cluster for shrimp processing in Soc Trang province 97 Figure 4.7 Networks embedding shrimp processing industry in Soc Trang province (main relations for eco-industrial clusters in ... processing in Soc Trang province, using an industrial ecology perspective Soc Trang is one of the Vietnamese provinces with large production of shrimp in terms of farming and processing industries ... to advance sustainable industrial systems Industrial ecology, as a broad framework for thinking and acting in the realm of sustainability, looks at industrial economies by using the metaphor...
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Trends in Postsecondary Credit Production, 1972 and 1980 High School Graduates potx
Ngày tải lên :
15/03/2014, 07:20
... inefficiency of taking longer than the expected years in terms of increased cost for tuition and of lost wages Others recognize the inefficiency for an institution to maintain a part-time or intermittent ... Recent NCES studies involving single-age high school cohorts suggest that high school graduates in the early 1980s are not as interested in or as likely to persist in the attainment of postsecondary ... reported in The American Freshman: Twenty Year Trends (Astin, 1987)1, it seems that there were differences in attitudes among beginning freshmen in each of these classes In 1972, freshmen were more interested...
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A simple route to annihilate defects in silicon nanowires
Ngày tải lên :
16/03/2014, 15:03
... the Si crystal core in the tip also has a high density of stacking faults and micro-twins, along the axis of the nanowire in the [1 2] growth direction (indicated by the arrow) In our observation, ... the defects inside the SiNWs were signi®cantly decreased after the SiNWs were thermally annealed at 1100°C for h under an inert ambient HRTEM investigation of the microstructures in the nanowires ... con- Fig TEM morphology of annealed SiNWs The inset is a SAED pattern Fig Typical HRTEM images of SiNWs: (A) an as-grown SiNW with defects; (B) an annealed SiNW without defects 348 Y.H Tang et...
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Efficient indirect exciton luminescence in silicon nanowires
Ngày tải lên :
16/03/2014, 15:15
... fast radiative recombination process is dominant The temperature dependence of the integrated PL intensity in the nanowire is completely di erent from that in bulk c-Si Considering the weak temperature ... Acknowledgements –1 10 PL Intensity (arb units) PL Intensity (arb units) 10 agreement with that of the integrated intensity, compared with that in bulk c-Si This agreement suggests that in the nanowire ... that in bulk c-Si The lifetime of the slow component is comparable with that in bulk c-Si Fig shows the temperature dependence of the fast-decay PL intensity and the integrated PL intensity in...
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Interplay between phonon confinement effect and anharmonicity in silicon nanowires
Ngày tải lên :
16/03/2014, 15:17
... by starting from the silicon crystalline material (eching of the crystalline bulk sample) so the amorphous signal is expected to be much smaller The Raman spectra of silicon nanowires point to ... feature is suppressed in nanowires in comparison to nanoclusters suggests that it might originate from the Raman scattering of amorphous silicon This can be understood as being the consequence ... showing that the shift and broadening arise mainly due to local laser heating effect The expected peak asymmetry, due to phonon confinement effect, is not observed Similar results are obtained in...
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KNOWLEDGE TRANSFER AND COMPETENCE DEVELOPMENT IN COMPLEX PAPER PRODUCTION ENVIRONMENTS pdf
Ngày tải lên :
18/03/2014, 02:20
... processes are introduced Finally, the theories of organizational learning, including individual and organizational learning, in single and double loop and a systemic model in building learning organizations ... verified in industrial case studies The case studies are two fine paper production unit start-up projects in Finland, and one fine paper production unit start-up project in China 21 Improving knowledge ... paper machine rebuilding project in Finland is evaluated and, finally, in the fourth study the use of the concept in a paper production unit start-up in China is reviewed In Chapter 8, the major...
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Báo cáo " ENVIRONMENTAL EDUCATION BY PROBLEM BASED LEARNING METHOD (PBL) - BENEFITS AND REMAINING ISSUES - APPLY IN TEACHING CLEANER PRODUCTION SUBJECT IN HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY " pdf
Ngày tải lên :
22/03/2014, 09:20
... this method - Apply in teaching the subject Cleaner Production Technology: subject characteristics, by applying the teaching methods into question how teaching this course - Finding on the advantages ... training credits REFERENCES Chamber Testing and Quality Control, Lecturer ‗s Analysis, Ho Chi Minh City University of Technology, 2010 Judith Lloyd Yero, Teaching in Mind, MindFlight Publishing ... and toxicity of waste in the production process again just to bring high economic efficiency - Skills: implementing the cleaner production projects for the manufacturing industry - Attitudes,...
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On the process and aesthetics of sampling in electronic music production* ppt
Ngày tải lên :
23/03/2014, 13:20
... misinformation In his essay, ‘Sample and hold: pop music in the digital age of reproduction’, Andrew Goodwin frets over the increasing difficulty in distinguishing human- from machine-generated ... sampling process Existing literature does not justice to the musicality of the sampling process; instead, it fosters an incomplete understanding of sampling and spreads a certain amount of misinformation ... set off ‘a marching band in a brownian [sic] motion’), most talked about the potential for using randomising as a means of emulating real instruments In a post about programming drum patterns,...
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A Comparative Analysis of Carbon Dioxide Emissions in Coated Paper Production Key Differences between China and the U.S. pot
Ngày tải lên :
24/03/2014, 05:20
... difference in distances traveled by pulp and paper in the supply chain for China’s industry, and for the U.S (NewPage) supply chain turned out to be striking Pulp in the Chinese supply chain takes ... of wood into dry weight 44 Deadwood Includes all non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil Dead wood includes wood lying on the ... Assume minimal difference in supply chains End of Life/Disposal Consumer paper disposal (landfill, incineration, or recycling) No Not relevant for comparison of production in the two supply chains...
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ANALYSING CROSS DIRECTIONAL CONTROL IN FINE PAPER PRODUCTION pdf
Ngày tải lên :
24/03/2014, 05:20
... would like to begin by thanking Stora Enso Research Centre in Falun for giving us the opportunity to work on this interesting project There are a many that have helped us in the making of this thesis ... believes that in order to produce a perfect product High-quality printing, writing or copier paper produced from chemical pulp and usually containing under 10% mechanical pulp (Finnish Forrest Industries ... the defects in the process In order to further investigate the potential of studying the output from the control system a study was made for a Fine Paper machine (PM9 at Grycksbo Mill) In this thesis...
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High-Tech Start-Ups and Industry Dynamics in Silicon Valley potx
Ngày tải lên :
29/03/2014, 23:20
... doing business in Silicon Valley, state and local governments should encourage firm founding Offering favorable tax breaks, opening industrial parks, building high-tech incubators, and providing ... for “moving inside” Silicon Valley, which is not a major concern of our study Death Merger and acquisition Moving inside Moving out Moving in Growth Birth Figure 1.2—Industry Dynamics in Silicon ... Relocating Into Silicon Valley, 1990–2001 4.5 Top Ten Origin Cities for Establishments Relocating Into Silicon Valley, 1990–2001 4.6 High-Tech Establishments Relocating Into and Out of Silicon...
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From the Critics’ Corner: Logic Blending, Discursive Change and Authenticity in a Cultural Production System* potx
Ngày tải lên :
30/03/2014, 16:20
... corporations are increasingly in uenced by the corporations that own them, advertise in them, or indirectly in uence them We investigated how these kinds of concerns could potentially bleed into the ... increasingly experienced resource constraints tied to declines in patronage, government support, and attendance In response to these pressures, orchestras have increasingly drawn on more ‘mainstream’ ... To be sure that we were examining changes in critics’ reviews relative to the strike, we sought to eliminate competing explanations for our findings For instance, we investigated the extent to...
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characterization in silicon processing strausser usa 1993 ebook
Ngày tải lên :
04/06/2014, 13:14
... transistor, a polysilicon or polycide interconnect line in any IC, in a solar cell, or in a thin-film transistor in a display device In order to control resistivity in the final product, one ... polishing Chlorine-containing gases such as HCl and the chlorosilanes may react with metals (e.g, in the source container or gas plumbing) in the presence of small amounts of water These metals ... manufacture is the topic of a chapter, including epitaxial silicon (including silicon germanium alloys), polycrystalline silicon, metal silicides, aluminum and copper conductors, tungsten conductors,...
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Báo cáo hóa học: " Effect of annealing treatments on photoluminescence and charge storage mechanism in silicon-rich SiNx:H films" docx
Ngày tải lên :
21/06/2014, 05:20
... subjected to annealing at 1100°C in N2, and subsequently in forming gas (10% H + 90% N ) The PL peak intensity increases about 28% due to this additional forming gas annealing step, indicating passivation ... Electroluminescence studies in silicon dioxide films containing tiny silicon islands J Appl Phys 1984, 56:401 Gritsenko VA: Structure and Electronic Properties of Amorphous Insulators in Silicon ... can be observed that the intensity of Si-N and Si-H stretching mode increases with increasing Si content of the film following the above reaction kinetics With increasing Si content, the Si-N...
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