... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are...
Ngày tải lên: 13/02/2014, 09:20
... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are...
Ngày tải lên: 13/02/2014, 20:20
Tài liệu THE IMPACT OF FIRM''''S CHARACTERISTICS ON JUNK-BOND DEFAULT pptx
... difficulties Because a firm' s overall risk hinges on the success of its projects, we expect the risk of default to vary directly with the firm' s cash flow Indeed, when a project turns sour and the cash ... information on default rates, investors can measure their asset portfolio risks and assign appropriate default risk premia to junk bond investments REVIEW OF PREVIOUS MODELS Prior studies on junk bond default ... investment We posit that a firm is likely to raise the level of its investment2 activity when its overall risk rises That is to say, stockholders wary about default risk might accept investment...
Ngày tải lên: 15/02/2014, 13:20
Tài liệu Tolley’s Basic Science and Practice of Gas Service Gas Service Technology Volume 1 docx
... and so on It has previously been said that substances are made up of tiny particles called ‘molecules’ This is true, but the molecules themselves consist of atoms Sometimes a molecule of a substance ... others to form molecules Stable substances are those whose outer shell contains its full complement of electrons Other substances, with outer shells which are not completely full, are less stable ... flueways Incomplete combustion caused by over-gassing attributed to excessive burner pressure Reset burner pressure to manufacturer s instructions and if necessary check gas rate using the gas meter...
Ngày tải lên: 16/02/2014, 07:20
Aeronautical Engineer’s Data Book potx
... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are...
Ngày tải lên: 05/03/2014, 17:20
Enterprise Adjustment and the Role of Bank Credit in Russia: Evidence from a 420 Firm''''s Qualitative Survey pdf
... profit est associộe de bonnes performances simultanộes selon ces deux axes, ce qui semble reflộter une des hypothốses de bases de microộconomie de la transition : lajustement et, si possible, ... diffộrenciations significatives Seules les entreprises dans une situation tr s mauvaise licencient massivement, mais sans parvenir maintenir la productivitộ Les meilleures performances se retrouvent ... pool DESCRIPTION OF THE DATA- B ASE The Russian Economic Barometer (REB) has been making quarterly surveys of industrial firms since January 19925 The survey asks firms to provide an assessment...
Ngày tải lên: 06/03/2014, 08:20
Mechanical Engineer’s Data Handbook 2011 ppt
... friction Poisson s ratio; kinematic viscosity Density; resistivity; velocity ratio Resistivity Stress; Stefan-Boltzmann constant Shear stress Friction angle; phase angle; shear strain; pressure angle ... three-dimensional stress combinations occur The theory is applied to the special case of shafts under both torsion and bending Direct, shear and bending stress Tensile and compressive stress (direct stresses) ... Stress o=-=area A Strain e = extension original length x =z Stress a PL - -Young 's modulus, E Thus E =Strain e Ax Shear stress P Shear stress T =- Shear strain 4=:, A G where G=Shear modulus...
Ngày tải lên: 22/03/2014, 12:20
TOLLEY’S BASIC SCIENCE AND PRACTICE OF GAS SERVICE Volume 1 pptx
... 50% Symptoms No symptoms Tightness across the forehead, yawning Flushed skin, headache, breathlessness and palpitation on exertion Slight dizziness Severe headache, dizziness, nausea Weakness of ... densities they are related to a standard substance For solids and liquids the standard is water For gases the standard is air This relationship between the density of a substance and the density ... 16 100 12 BASIC SCIENCE AND PRACTICE OF GAS SERVICE Substitute Natural Gas Substitute natural gas (SNG) is manufactured either as a direct substitute for natural gas or as a means of providing...
Ngày tải lên: 29/03/2014, 08:20
Aeronautical Engineer''''s Data Book pot
... System (USCS) The ‘MKS system’ is a metric system still used in some European countries but is gradually being superseded by the expanded Système Interna tional (SI) system 2.2.1 The USCS system ... basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) ... (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) for SSU > 100 seconds 2.4 Consistency of units Within any system of units, the consistency of units forms a ‘quick check’...
Ngày tải lên: 27/06/2014, 14:20
Aeronautical Engineer’s Data Book Clifford Matthews BSc ppt
... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are...
Ngày tải lên: 27/06/2014, 17:20
Aeronautical Engineer’s Data Book Clifford Matthews potx
... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are...
Ngày tải lên: 27/06/2014, 17:20
data science for business - froster provost
... concepts: A set of canonical data mining tasks; The data mining process; Supervised versus unsupervised data mining From Business Problems to Data Mining Tasks Supervised Versus Unsupervised Methods ... understand data- driven campaigns, venture capitalists must be able to invest wisely in businesses with substantial data assets, and business strategists must be able to devise plans that exploit data ... helpful books), such as databases, data warehousing, and basic statistics From Business Problems to Data Mining Tasks Each data- driven business decision-making problem is unique, comprising its own...
Ngày tải lên: 10/07/2014, 23:29
agile data science
... Addison-Wesley Pro‐ fessional, Microsoft Press, Sams, Que, Peachpit Press, Focal Press, Cisco Press, John Wiley & Sons, Syngress, Morgan Kaufmann, IBM Redbooks, Packt, Adobe Press, FT Press, Apress, ... the world s leading authors in technology and busi‐ ness Technology professionals, software developers, web designers, and business and crea‐ tive professionals use Safari Books Online as their ... productionize insight in new kinds of analytics applications These tools are processor cores and disk spindles, paired with visualization, statistics, and machine learning This is data science At the same...
Ngày tải lên: 01/08/2014, 17:39
Aeronautical Engineer’s Data Book - part 1 pptx
... dimensions and units 2.2 Units systems The most commonly used system of units in the aeronautics industry in the United States is the United States Customary System (USCS) The ‘MKS system’ is a ... Part 77: Designation of class a, class b, class c, class d, and class e airspace areas; airways; routes; and reporting points Special use airspace Objects affecting navigable airspace Subchapter ... metric system still used in some European countries but is gradually being superseded by the expanded Système Interna tional (SI) system 2.2.1 The USCS system Countries outside the USA often...
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 2 potx
... also used m2 /s = 10.7639 ft2 /s = 5.58001 ϫ 106 in2/h stoke (St) = 100 centistokes (cSt) = 10–4 m2 /s St >� 0.00226 (SSU) – 1.95/(SSU) for 32 < SSU < 100 seconds St � 0.00220 (SSU) – 1.35/(SSU) ... Kinematic viscosity () is a function of dynamic viscosity Kinematic viscosity density, i.e = µ/ = dynamic viscosity/ The basic unit is ft2 /s Other units such as Saybolt Seconds Universal (SSU) are ... V by a scalar quantity s sV = (sa)i + (sb)j + (sc)k (s1 + s2 )V = s1 V + s2 V (V1 + V2 )s = V 1s + V 2s where sV has the same direction as V, and its magnitude is s times the magnitude of V Scalar...
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 3 pdf
... p2 2 where R is the universal gas constant: R = 287.26 J/kg K Table 3.5 shows the international standard atmosphere (ISA) Table 3.6 shows the lesser used US (COESA) standard atmosphere Table 3.5 ... Fixed Base Operation FMS Flight Management System G /S Glideslope G/W Gross Weight GPS Global Positioning System GPWS Ground Proximity Warning System GS Ground Speed HF High Frequency Radio HSI Horizontal ... mechanical hinges ROC Required operational capability RSRA Rotor systems research aircraft SCAS Stability and control augmentation system SH Anti-submarine helicopter (US) sidestick Small control...
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 4 pot
... Basic fluid mechanics 91 5.7 Normal shock waves 5.7.1 1D flow A shock wave is a pressure front which travels at speed through a gas Shock waves cause an increase in pressure, temperature, density ... reduces again as the airfoil becomes even thicker CL generally increases as camber increases The minimum CD achievable increases fairly steadily with section thickness 6.3 Pressure distributions ... Engineer s Data Book Arrow length represents the magnitude of pressure coefficient Cp P∞ = upstream pressure S α Ӎ 5˚ Stagnation point (S) moves backwards on the airfoil lower surface S Pressure...
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 5 ppt
... cosine matrix D is given by: D= � cos cos cos cos � – sin sin sin cos sin sin sin sin cos – cos sin + cos sin cos sin cos cos sin cos cos cos ... stream before it enters the combustor The air is forced into a smaller and smaller area as it passes through the compressor stages, thus raising the pressure ratio Compressor Pressure Ratio (CPR) ... pressure section The high pressure turbine is closest to the combustor and drives the high pressure compressor through a shaft connecting the two The low pressure turbine is next to the exhaust...
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 6 pdf
... 0.65 S2 0.599 S2 0.77 slats F2 0.58 17.08 none S2 0.7 slats F2 0.58 17.08 none S2 0.63 slats S2 0.72 8.36 none S2 0.79 slats S2 0.66 10.6 slats/flaps slats slats slats slats slats 12.64 12.64 ... mass decreases as a flight progresses, as the fuel mass is burnt (see Figure 9.3) Specific air range (r) is defined as distance/fuel used (in a short time) The equivalent endurance term is specific ... all possible technical developments, supersonic aircraft are still subject to severe restrictions in and around most civil aviation airports Sonic booms caused by low supersonic Mach numbers (
Ngày tải lên: 08/08/2014, 11:21
Aeronautical Engineer’s Data Book - part 7 pptx
... General stainless steels – basic data Stainless steels are commonly referred to by their AISI equivalent classification (where applicable) AISI Other classifications Type2 Yield Fty (ksi) [(Re) ... fibre composite Stainless steel is used for some smaller and engine components Table 10.5 gives basic data on constituents and properties 10.2.1 Corrosion It is important to minimize corrosion in ... longitudinal stiffeners are added This progression leads to the semimonocoque fuselage design which depends primarily on its bulkheads, frames and formers for vertical strength, and longerons and stringers...
Ngày tải lên: 08/08/2014, 11:21