Principles of turbomachinery 2
Principles of turbomachinery 2
... theory of wind turbines 403 12. 2.1 Momentum Theory 403 12. 2 .2 Ducted wind turbine 407 12. 2.3 Blade element theory and wake rotation 409 12. 2.4 Irrotational wake 4 12 12. 3 Blade Forces 415 12. 3.1 ... Q = fa (u 2 + p 2 v 2 + -V 2 2 + gz 2 ) +W (2. 2) The sum of specific internal energy u, kinetic energy V 2 /2, and potential energy gz is the specific ene...
Ngày tải lên: 08/04/2014, 11:44
Principles of turbomachinery
... examined. the moments of momentum entering the rotor at 1 and 2 are given by dM1 = (P\'~I~QI)V"IRI dM2 = (p\',?daz) VU2R2 Thus the total moments of momentum are MI = ... Fig. 4 .2 and Table 4.1. Fundamental principles 1.1 Introduction An important class of fluid machine has, as its characteristic, the transfer of energy between a continuous strea...
Ngày tải lên: 08/04/2014, 11:44
Ten Principles of Economics - Part 2
... analysis is built using the ten principles introduced here. Table 1-1 T EN P RINCIPLES OF E CONOMICS H OW P EOPLE #1: People Face Tradeoffs M AKE D ECISIONS #2: The Cost of Something Is What You Give ... 11 productivity, p. 12 inflation, p. 13 Phillips curve, p. 14 Key Concepts 1. Give three examples of important tradeoffs that you face in your life. 2. What is the opportunity cost...
Ngày tải lên: 08/11/2013, 00:15
Báo cáo y học: "A prospective observational study of the relationship of critical illness associated hyperglycaemia in medical ICU patients and subsequent development of type 2 diabetes"
... ACS b 322 97 (30.1%) 22 5 (69.9%) - other diagnoses 331 99 (29 .9%) 23 2 (70.1%) Age (years) 58 (19 to 87) 59 (22 to 87) 58 (19 to 86) P = 0 .21 4 Male sex (N, %) 570 (55.4%) 194 (53.9%) 376 (56 .2% ) ... (0.9 to 4 .2) 1.3 (0.9 to 4.5) P = 0.106 Cholesterol (umol/l) 4.5 (2. 1 to 7.7) 4.8 (2. 0 to 9.7) 4.9 (2. 1 to 8.0) P = 0.146 Glucose levels c 6.4 (2. 7 to 23 .5) 7.6 (3.8 to 23 .5) 5 ....
Ngày tải lên: 25/10/2012, 10:02
Báo cáo y học: "Cancer control through principles of systems science, complexity, and chaos theory: A mode"
... angiogenesis. Circulation. 20 04; 109 (2) : 22 0-6. 22 . Takahashi M, Kubota S. Exercise-related novel gene is involved in myoblast differentiation. Biomed Res. 20 05; 26 (2) : 79-85. 23 . Piccirillo SGM and ... Control. 20 04; 15: 863-8 72. 20 . Blask D, Dauchy R, and Sauer L. Putting cancer to sleep at night: The neuroendocrine/circadian melatonin signal. Endocrine. 20 05; 27 (2...
Ngày tải lên: 26/10/2012, 10:04
Báo cáo y học: "The association of meat intake and the risk of type 2 diabetes may be modified by body weight"
... 32. 3 42. 3 34.3 38.9 31.8 38.3 Up to High School 21 .9 31.9 23 .7 30.6 21 .1 33.8 22 .8 29 .3 College 9 .2 16.1 10.8 15.5 8.5 17.3 12. 6 14.1 Income Level (%) <10000 21 .5 13.7 20 .2 14.4 22 .1 12. 3 ... 12. 3 23 .8 14.7 10000-19999 39.5 37.1 38.8 37.8 41.4 35.9 39.4 37.9 20 000 -29 999 24 .5 29 .9 24 .7 29 .7 23 .7 30.7 24 .1 28 .9 >30000 14.5 19 .2 16.3 17.9...
Ngày tải lên: 31/10/2012, 16:49