SOIL MECHANICS - CHAPTER 13 potx

... 0. 13. 3 A non-linear material In the previous chapter it has been argued that soils are non-linear and non-elastic. Furthermore, soils are often not isotropic, because during the formation of soil ... convention for the stresses of soil mechanics. It can easily be verified that the equations (13. 8) are equivalent to (13. 6) and (13. 7) if K = E 3(1 − 2ν) , (13. 9) G = E 2(1 + ν) . (...

Ngày tải lên: 05/08/2014, 23:24

... Arnold Verruijt, Soil Mechanics : 22. SHEAR TEST 133 Norway a variant of this apparatus has been developed, with a circular cross ... incremental stresses are taken equal to those in the field. For Arnold Verruijt, Soil Mechanics : 22. SHEAR TEST 132 the mechanism of a toppling book row is produced, just as a row of bo oks in ... side walls enable a uniform shear deformation of the...

Ngày tải lên: 06/08/2014, 01:20

... Z>1 THEN F=F-KP*(Z-1) 270 Q=-KA*Z*Z/2:IF Z>A THEN Q=Q+T 280 IF Z>1 THEN Q=Q+KP*(Z-1)*(Z-1)/2 290 M=-KA*Z*Z*Z/6:IF Z>A THEN M=M+T*(Z-A) 300 IF Z>1 THEN M=M+KP*(Z-1)*(Z-1)*(Z-1)/6 310 ... TRZ=TRZ+G*DZ:PR=PR+W*DZ:SRZ=TRZ-PR:SRX=CA*SRZ:TRX=SRX+PR 260 F(I)=TRX-TLX:FF=(F(I)+F(I-1))*DZ2:Q(I)=Q(I-1)-FF 270 M(I)=M(I-1)+(Q(I)+Q(I-1))*DZ2:MT=MT+FF*(Z-DA-DZ2):NEXT I 280 WHILE MT>0:N=N+1...

Ngày tải lên: 06/08/2014, 01:20

... gure 13. 8. Such a theoretical prediction is in good agreement pH 8.50 8.51 8.52 8.53 8.54 8.55 8.56 r(mm) 0.0 0.2 0.4 0.6 CO 3 2– (M) 2.4e-5 2.5e-5 2.6e-5 2.7e-5 2.8e-5 2.9e-5 R CaCO 3 FIGURE 13. 8 ... Aerobic Granules 231 13. 7.3 Distribution of pH and CO 3 2- in Acetate-Fed Aerobic Granules 233 13. 7.4 Size-Associated Formation of CaCO 3 in Acetate-Fed Aerobic Granules 234 13. 8...

Ngày tải lên: 18/06/2014, 16:20

... to each soil type in a soil map. The values are given in Table 13. 2 and the map shown in Figure 13. 3. The erodibility of soils in this area varied from 0.12 for brown soil to 0. 413 for moisture ... 1 613. 7 mm, of which 73.1% occurs between March and August. The dominant agricultural crops are rice, cotton, and tea. The major soil types consist of red soil, brown soil, yel...

Ngày tải lên: 18/06/2014, 16:20

... They are built for heavy-duty L1306/frame/pt02 Page 128 Friday, June 23, 2000 1:55 PM © 2001 by CRC Press LLC 130 A PRACTICAL GUIDE TO PARTICLE COUNTING b. Software Grab-sampling software may ... standard RS-232 serial port, which is directly connected to a standard PC. Some units also provide an RS-485 interface, which allows the grab sampler to be connected to an online system. L1306/fr...

Ngày tải lên: 18/06/2014, 19:20

... medium-hard microporous zeolite. Composition: clinoptilolite ≈ 50%, mordenite 0-1 0%, altered volcanic glass 2 0-3 0%, montmorillonite 1 0-1 5%, quartz 0-5 %, feldspar 0-5 %, and limonite 1-2 %. ... 4 0-6 0%, altered volcanic glass 2 0-3 0%, montmorillonite 1 0-1 5%, quartz 0-5 %, feldspar 0-5 %, and limonite 1-2 %. Characteristics: density ≈ 1.82 g/cm 3...

Ngày tải lên: 18/06/2014, 19:20

... and numbered Radix Breeding Line (RBL 1-9 ). From these selections, his neighbours preferred RBL-7 red and white and RBL-3. Adlaon first thought that off-types should be removed so that materials ... through the intervention of SEARICE that single-plant off-type selection was possible and multiply the ones with superior quality. He then selected an off-type Pilit (sticky rice), and ca...

Ngày tải lên: 01/07/2014, 19:20

Ngày tải lên: 02/07/2014, 22:20

... and James G. MacKinnon Chapter 13 Methods for Stationary Time-Series Data 13. 1 Introduction Time-series data have special features that often require the use of special- ized econometric techniques. ... y t−j )  Var(y t ) , (13. 26) where  Cov(y t , y t−j ) = 1 n −1 n  t=j+1 (y t − ¯y)(y t−j − ¯y), (13. 27) and  Var(y t ) = 1 n −1 n  t=1 (y t − ¯y) 2 . (13. 28) In equations (13. 27...

Ngày tải lên: 04/07/2014, 15:20