Air pressures

Xem 1-20 trên 52 kết quả Air pressures
  • Absorbent : Chất hấp thụ. Actinic rays: Hoá quang. Actinometer: Hoá quang kế. Action: Tác dụng. Activete: Hoạt hoá. Active element hoặc active. Substance: Hoạt chất. Additive: Chất phụ gia. Adhesive: Chất kết dính. Adsorb: hấp thụ. Adsorption: Sự hấp thụ. Affinity: ái lực. Agent: chất. Air pressure: áp suất khí quyển. Alcoholic fermentation: lên men rượu. Alipathic compound / hợp chất béo. Alkali: chất kiềm. Alkali metals or alkaline: k.loại kiềm. Allergic reaction or allergic test: phản ứng dị ứng....

    doc4p madianguc 16-09-2010 261 113   Download

  • cience Glossary Translation in Vietnamese Englsih A acceleration absorb acid rain action adaptation adapt Affect air advantage adult adjust air pressure air mass amount Amphibian resistance alternate alto analyze amplitude angle anatomy ancestor ancient Anemometer appliance Animalia apply appropriate antibiotic antibody absorbent; absorb water; absorption . promptings, causing more blood. acid rain drowned. actions. adapted; assembly. adaptation; the assembly. adjustment; adaptation.

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  • Compressed air provides power for many manufacturing operations. Energy stored in compressed air is directly convertible to work. Conversion from another form of energy, such as heat, is not involved. Compressed air can be supplied by several different types of compressors (Fig. 61.1). The choice depends on the amount, pressure, and quality of air a plant system requires. The reciprocating compressor is manufactured in a broad range of configurations.

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  • Practically every industrial process requires objects to be moved, manipulated or be subjected to some form of force. This is generally accomplished by means of electrical equipment (such as motors or solenoids), or via devices driven by air (pneumatics) or liquids (hydraulics).

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  • To generate noise from gears the primary cause must be a force variation which generates a vibration (in the components), which is then transmitted to the surrounding structure. It is only when the vibration excites external panels that airborne noise is produced. Inside a normal sealed gearbox there are high noise levels but this does not usually matter since the air pressure fluctuations are not powerful enough to excite the gearcase significantly.

    pdf40p lyacau 30-12-2009 81 14   Download

  • Compressed-air springs as per VW standard The compressed-air springs 2491.12. can be used as an alternative to gas springs, spiral compression springs and polyurethane springs as well as for the lower pressure on the press side. Advantages of the FIBRO compressed-air springs:

    pdf8p nguyen8 03-12-2009 59 10   Download

  • A gas at 20°C may be rarefied if it contains less than 1012 molecules per mm3. If Avogadro’s number is 6.023E23 molecules per mole, what air pressure does this represent? Solution: The mass of one molecule of air may be computed as m= Molecular weight 28.97 mol −1 = = 4.81E−23 g Avogadro’s number 6.023E23 molecules/g ⋅ mol

    pdf60p vanvan990 25-05-2010 57 7   Download

  • There are few physical phenomena so generally studied which are as misunderstood as the phenomenon of flight. Over the years many books have been written about flight and aeronautics (the science of flight). Some books are written for training new aeronautical engineers, some for pilots, and some for aviation enthusiasts. Books written to train engineers often quickly delve into complicated mathematics, which is very useful for those who wish to make detailed calculations.

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  • What are we dealing with: (gas – air) high speed flow – Mach Number 0.3 Perfect gas law applied – expression for pressure field Need some thermodynamic concepts, eg, enthalpy, entropy, etc

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  • Spirax Sarco is the recognized industry standard for knowledge and products and for over 85 years has been committed to servicing the steam users worldwide. The existing and potential applications for steam, water and air are virtually unlimited. Beginning with steam generation, through distribution and utilization and ultimately returning condensate to the boiler, Spirax Sarco has the solutions to optimize steam system performance and increase productivity to save valuable time and money.

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  • Helicopter aerodynamics is the branch of physics dealing with the forces and pressures exerted by air in motion. The atmosphere, the mass of air, which completely envelops the earth, is composed of varying and nonvarying constituents. The nonvarying constituents include oxygen (21%) and nitrogen (78%). The varying constituents include CO2, argon, hydrogen, helium, neon, krypton, and water vapor, which will vary from negligible amounts to approximately 4% by volume (100% relative humidity). Air is a fluid and is affected by changes in temperature, pressure, and humidity....

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  • Beside the effect of gravitational forces, the water level in Sai Gon-Dong Nai River System is also affected by non gravitational forces such a wind, air pressure, rainfall and sea level rise. The purpose of this paper is to simulate the water level of these river based on the tidal and non-tidal constituents, from that assess the role of non-tidal constituents to water variation. In this study, the none-tidal data used includes the wind field at surface, sea level pressure and the rainfall in Sai Gon- Dong Nai Basin. With the analyzed data series from 1980 to 2007, the results...

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  • Technical approaches seek to reduce the emissions produced by road vehicles using the transport system by intervening with the vehicles being used and the fuels they are burning. By definition, these approaches address per unit emissions rather than the amount of activity causing the emissions. An exclusively technological approach may be insufficient to address the growth in emissions, for a number of reasons. First, growt h in activity continuously puts pressure on technology gains.

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  • Tire Pressure Monitoring Systems continuously mea- sure air pressure inside all tires of passenger cars, trucks, and multipurpose passenger vehicles, and alert drivers if any tire is signicantly underinated. While both direct and indirect measurement technologies exist, only direct measurement has the measurement sensitivity required by the TREAD Act and is thus the only one in produc- tion. A direct measurement system uses battery-powered pressure sensors inside each tire to measure tire pres- sure and can typically detect any loss greater than 1.45 psi [40].

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  • (BQ) Ebook Earth science: Water Cycle and Weather presents about why can’t you drink salt water? How do scientists classify clouds? How do scientists classify clouds? does each tool measure? Water is recycled through the water cycle; cause and Effect what causes a cold front? What effects does a cold front have on weather?.

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  • The transmission and control of power by means of fluid under pressure is becoming in creasingly used in all branches of industry. Pneumatics deal with the use of compressed air as the fluid whilst hydraulic power covers the use of oils and other liquids.

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  • To enable us to focus on the contracts accepted by consumers, we suppress the strategic interaction between firms and define equilibrium directly in terms of the contracts that survive competitive pressure.7 Since a borrower’s behavior in period 0 can depend only on ˆ β, the competitive equilibrium will be a set of contracts {(ci, i)}i∈{2, … , I } for the possible ˆ β types β2 through βI.

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  • Storm surges are dangerous phenomena to the Vietnam coast, so they are taken in account by number of researchers. Rapid and accurate prediction of storm surges makes contribution in protection and mitigation of natural damages in coastal areas. Storm surges are considered as a complicated processes under action of air pressure, wind field, tide etc. and they may be well predicted using mathematical models.

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  • Active body control Điều khiển thân vỏ tích linh hoạt Active Service System Hệ thống hiển thị định kỳ bảo dưỡng Air cleaner Lọc gió Air flow sensor (Map sensor) Cảm biến bướm gió Air temperature sensor Cảm biến nhiệt độ khí nạp Alternator Assy Máy phát điện Antibrake system Phanh chống bó cứng Auto trans selector lever positions Tay số tự động Automatic mixture control Điều chỉnh hỗn hợp tự động Baffle, tail pipe Chụp ống xả (Có thể là inốc) Balanceshaft sub assy Trục cân ...

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 2 STEAM CONDENSING SYSTEMS AND AUXILIARIES Design of Condenser Circulating-Water Systems for Power Plants 2.1 Designing Cathodic-Protection Systems for Power-Plant Condensers 2.7 Steam-Condenser Performance Analysis 2.12 Surface-Condenser Circulating-Water Pressure Loss 2.20 Surface-Condenser Weight Analysis 2.22 Steam-Condenser Air Leakage 2.16 Steam-Condenser Selection 2.17 Air-Ejector Analysis and Selection 2.18 Weight of Air in Steam-Plant Surface Condenser 2.23 Barometric-Condenser Analysis and Selection 2.

    pdf28p medinova 26-10-2010 82 46   Download

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