laboratory simulation and testing of air flotation and associated processes
Simulation and Fabrication of Piezoelectric mems Inkjet Print head
Ngày tải lên :
10/04/2013, 13:48
... in air and in liquid in order to compare with simulation results 16 2.4 Results and discussion 2.4.1 Performance characteristics of PIPH actuator in air PIPH actuators offer a wide variety of ... 1.3 Numerical simulation 1.3.1 Role of numerical simulation 1.3.2 General principle of numerical simulation 1.3.3 Numerical simulations of piezoelectric MEMS ... specifications of MEMS device, design, modeling to evaluate performance, fabrication and testing Reviews of the modeling and test results enable optimization of the performance of the MEMS device...
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SIMULATION AND VERIFICATION OF PARTICLE COAGULATION DYNAMICS FOR A PULSED INPUT
Ngày tải lên :
05/09/2013, 08:40
... effective volume of mL The particles and particle aggregates in each sample were counted in terms of a series of particle sizes under a microscope (BX60, Olympus), and the size distribution of the particles ... general kinetic equation (1) and thus to carry out numerical simulation The whole particle size range was divided into a number of contiguous sections in terms of the mass of particles (42 sections ... loss of particles of size k should be incorporated into the integration of the simulation process (Hounslow et al., 1988) Fractal Aggregates Aggregates formed by coagulation are highly porous and...
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CFD model of air movement in ventilated façade: comparison between natural and forced air flow
Ngày tải lên :
05/09/2013, 14:58
... efficiency of the whole installation: the separation between the panels, temperature and air velocity of incoming solar radiation and temperatures of solid elements, the heat transfer coefficients of ... and exterior [4] This effect is due to convection produced in the air gap of the façade, Kokogiannakis and Strachan [5]; Gang, [6] This convection depends on the air movement inside the gap and ... obtain the velocities profiles in the air gap and the temperature distribution across the air and the external building faces The geometry modeled is a simplification of a ventilated façade in...
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Numerical simulation and performance test of metal hydride hydrogen storage system
Ngày tải lên :
05/09/2013, 14:58
... filtration and D=0.00237 is for LaNi5 The term ε and d are the porosity of metal hydride and average diameter of metal hydride particle, respectively In & the meanwhile, Jf is hydrogen flux and determined ... International Journal of Energy and Environment (IJEE), Volume 2, Issue 3, 2011, pp.401-414 where A and B are Van’t Hoff constants and depend on the hydride material From Eqs (17) and (18) the function ... where K and E are effective thermal conductivity in metal hydride and heat of formation of hydride, respectively The two equations (16) and (19) are the simplified mathematical model of metal...
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Numerical simulation and optimization of CO2 sequestration in saline aquifers for enhanced storage capacity and secured sequestration
Ngày tải lên :
05/09/2013, 16:10
... optimization of the storage efficiency of an aquifer is of great interest in GCS Therefore, a simulation tool that has the capability of determining the optimal solutions by balancing various trade-offs ... the mobility, viscosity, and relative permeability of the non-wetting phase (CO2) respectively and mw, µw, and krw are the mobility, viscosity, and relative permeability of the wetting phase (brine) ... aspect of sequestration (e.g reservoir pressure response and its management) In addition, the storage efficiency of an aquifer is also dependent on various injection strategies and parameters associated...
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PERFORMANCE TESTING OF COPPER PERMANENT LINKS AND CHANNEL
Ngày tải lên :
27/10/2013, 17:15
... Performance Testing of Permanent Links and Channels Testing of telecommunications Permanent Links and Channels to determine performance compliance to Class D (using Cat components) and Class E ... configuration of the Permanent Link and Channel is shown below Measurement Permanent Link 90m max CP FD Measurement Channel 100m max Field Performance Testing V10 050111 Page of TO Passive Testing With Hand-Held ... There are currently three levels of hand-held field tester: Level 2e – for testing up to Class D Level – for testing up to Class E Level – for testing up to Class F and the draft 10GBE benchmark...
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Handbook Of Air Conditioning And Refrigeration P1
Ngày tải lên :
29/10/2013, 20:15
... of Refrigeration Engineering and Air Conditioning as the teaching and learning package, and presented several papers at ASHRAE meetings The First Edition of the Handbook of Air Conditioning and ... the beginning of a new millennium, in addition to the publication of ASHRAE Standard 90.1-1999 and ASHRAE Standard 62-1999, often called the Energy standard and Indoor Air Quality standard, the ... Commissioning means testing and balancing all systems, functional testing and adjusting of components and the integrated system, and adjusting and tuning the direct digital controls An air conditioning...
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Handbook Of Air Conditioning And Refrigeration P2
Ngày tải lên :
29/10/2013, 20:15
... number of moles of dry air, mol nw ϭ number of moles of water vapor in moist air sample, mol nws ϭ number of moles of water vapor in saturated moist air sample, mol Moist air is a binary mixture of ... mass of dry air, for the sake of consistency, air density a, in lb/ft3 (kg/m3), should be defined as the ratio of the mass of dry air to the total volume of the mixture, i.e., the reciprocal of ... enthalpy of moist air at initial state and enthalpy of saturated air at end of ideal adis abatic saturation process, Btu/lb (kJ/kg) w1,w* ϭ humidity ratio of moist air at initial state and humidity...
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Tài liệu FIELD PERFORMANCE TESTING OF COPPER PERMANENT LINKS AND CHANNEL Class D, Class E, Class EA pdf
Ngày tải lên :
12/12/2013, 12:15
... Performance Testing of Permanent Links and Channels There are distinct areas of cable testing; Certification, Qualification and Verification Certification is the most rigorous of all cable testing and ... Performance Testing V15 060508 Page of 11 Passive Testing With Hand-Held Field Testers There are currently three levels of hand-held field tester: Level 2e – for testing up to Class D Level – for testing ... for PL testing of HighBand8 modules if PL testing is selected on tester N2604A-101 is the Universal Link Probe/Adaptor OMNISCANNER AND C6 FMK & KM8 RJ45 Socket C5 RJ45 Socket HIGHBAND and Ultim8...
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SIMULATION AND SPEED CONTROL OF INDUCTION MOTOR DRIVES
Ngày tải lên :
18/12/2013, 22:06
... ωm and ωs are rotor and synchronous speeds, respectively 2|Page Simulation and Speed Control of Induction Motor Drives 2012 s = 120f/p rpm Further, (2.2) Where f and p are supply frequency and ... possible 34 | P a g e Simulation and Speed Control of Induction Motor Drives 2012 CHAPTER ANALYSIS OF VARIOUS METHODS FOR SPEED CONTROL OF IM The various methods of speed control of 3- Induction ... Figure 4.15: Variation of Stator current of a 3-in case of closed loop PI control for constant V/f control method Figure 4.16: Variation of DC Bus Voltage of a 3-in case of closed loop PI control...
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Tài liệu Health Aspects of Air Pollution with Particulate Matter, Ozone and Nitrogen Dioxide doc
Ngày tải lên :
17/02/2014, 11:20
... indicator of traffic emissions In addition, NO2 and other nitrogen oxides also contribute to the generation of ozone and other oxidant pollutants and are a precursor of the formation of nitric acid and ... 13-hr base of 60 ppb (120µg/m3), and those in monkeys of Hyde et al (242) and Tyler et al (243) applying hours per day of 150 and 250 ppb (300 and 500µg/m3) The persistent cellular and morphometric ... United States of America (toxicology of NO2 and O3); · RIVM, Bilthoven, Netherlands (epidemiology of PM); · GSF- National Research Centre for Environment and Health, Institute of Epidemiology,...
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Tài liệu Possible influences of air pollution, dust- and sandstorms on the Indian monsoon doc
Ngày tải lên :
17/02/2014, 22:20
... easterly wind shear and a deepening of the Bay of Bengal depression Both are signals of a stronger South Asian monsoon (Webster and Yang, 1992; Goswami et al., 1999; Wang and Fan, 1999; and Lau et al., ... convection associated with heavy monsoon rainfall along the foothills of the Himalayas near Nepal The cloud clusters off the coast of the southern tip of the subcontinent and over the Bay of Bengal ... by the build-up of atmospheric brown clouds from industrial emission and bio-fuel burning, favoured by stable meteorological conditions associated with subsiding airmass and lack of rainfall which...
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Tài liệu Impacts of air pollution on human health, ecosystems and cultural heritage pdf
Ngày tải lên :
17/02/2014, 22:20
... future • Air pollution continues to cause cardiovascular and respiratory illnesses • Air pollution reduces the economic value of crops and leads to expensive cleaning of cultural heritage • Air pollution ... ozone precursors and particulate matter After nitrogen deposition The level of exceedance of the nitrogen critical load provides an indication of the level of risk of adverse effects of nitrogen on ... value of crops and leads to expensive cleaning of cultural heritage • Air pollution reduces plant biodiversity and affects other ecosystem services, such as clean water, recreational activities and...
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Tài liệu MIT Joint Program on the Science and Policy of Global Change: Effects of Air Pollution Control on Climate pdf
Ngày tải lên :
17/02/2014, 22:20
... chemistry and climate model indicate multiple, regionally variable and partially-offsetting, effects of BC on absorption and reflection of sunlight, reflectivity of clouds, and the strength of lower ... emissions of sulfur oxides from combustion of fossil fuels and biomass, and from industrial processes Cases (4) and (5) address combinations more likely to be representative of a real comprehensive air ... (1) the effects of air pollution policy on overall demand for fossil fuels and individual demands for coal, oil and gas; (2) the effects of caps on black carbon (as a regulated air pollutant)...
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EFFECTIVENESS OF AIR FORCE SCIENCE AND TECHNOLOGY PROGRAM CHANGES pot
Ngày tải lên :
05/03/2014, 12:20
... FMR Air Combat Command advanced concept technology demonstration Air Force Association Air Force Institute of Technology Air Force Materiel Command Air Force Office of Scientific Research Air ... Process Air Force Research Laboratory Air Force Scientific Advisory Board Air Force Special Operations Command Air Force Space Command Air Logistics Center Air Mobility Command annual planning and ... science and technology summits provide sufficient visibility into, and understanding and appreciation of, the value of the science and technology program to the senior level of Air Force budget and...
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Knut Einar Rosendahl (ed.) Social Costs of Air Pollution and Fossil Fuel Use – A Macroeconomic Approach pdf
Ngày tải lên :
06/03/2014, 16:20
... reflect the kind of use of the model Thus, MSG-EE offers interesting studies of e.g environmental effects of both various levels and compositions of economic activity As energy and environmental ... Studies 99 Social Costs of Air Pollution of Norway, and the rest of the country (mainly rural) In the north the values for sulphur dioxide, ozone, rain, time of wetness and acidity of precipitation ... Costs of Air Pollution fieldwork was carried out on surveying the condition and material-mix of various types of buildings One of the conclusions was that the mix of materials for various types of...
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Ecotoxicological Testing of Marine and Freshwater Ecosystems Emerging Techniques, Trends, and Strategies pot
Ngày tải lên :
06/03/2014, 18:21
... our understanding of the aquatic environment and its response to disturbances The book as a whole promotes the understanding of the structure, function, and performance of healthy and damaged ... Overview of methods for processing and integration of data, risk communication, and risk perception • Use of information from biological testing in decision- and policymaking • Selected and simple ... chemistry: effects of sampling, storage, handling and toxicity testing R.S Carr and M Nipper eds Summary of a SETAC technical workshop: Porewater Toxicity Testing: Biological, Chemical and Ecological...
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ENVIRONMENTAL HISTORY OF AIR POLLUTION AND PROTECTION doc
Ngày tải lên :
06/03/2014, 19:20
... and Effectiveness of Change’, in Pretty, J et al (eds.), The Sage Handbook of Environment and Society, Sage, London [A useful survey of air pollution policy and legislation, and its effectiveness, ... and regulation of major air pollution problems.] Kessel, A (2006), Air, the Environment and Public Health, Cambridge University Press, Cambridge [A useful survey of changing ideas about air and ... Ashby, E and Anderson, M (1981), The Politics of Clean Air, Clarendon Press, Oxford [This is still the best discussion of slow-moving political initiatives to improve air quality in nineteenth and...
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