... teachers be required to introduce the theory of in- telligent design (ID) as an alternative to the theory of evolution”for explaining the diversity of life on Earth and the ex- istence of millions ... individuals. The lack of a unified theory of ecology” and the existence instead of a fragmented body of “ecological theory is evidenced by the relative use of these two terms in the scientific ... as the theory of evolution, I suggest we look to ecology—evolution’s sibling field under the umbrella of population biol- ogy. The term “ecological theory is used to refer to an array of theoretical...
Ngày tải lên: 25/01/2014, 08:20
The Design and Implementation of a Log-Structured File System
... for the log can be generated either by copying the old blocks or by threading the log around the old blocks. The left side of the figure shows the threaded log approach where the log skips over the ... reposi- tories[21]. The implementation in Sprite LFS is simplified because the log is the final home of the data. Rather than redoing the operation to the separate data copy, Sprite LFS recovery insures that the ... it ignores the new data blocks. The roll-forward code also adjusts the utilizations in the segment usage table read from the checkpoint. The utilizations of the segments written since the checkpoint will...
Ngày tải lên: 12/09/2012, 15:05
The design of mat foundations
... 119 pcf Example 4. Design the steel lying in the East-West direction of the mat shown below with external dimensions of 42 feet by 74 feet. The columns are all 15”by 15”, the LF = 1.6, f c ’ ... in the x and y values, which these values are found by using the x-y coordinate system off the mat foundation. Determine the average soil reaction. (92.34(78.8)69.8) 79 6 avg qpsf ++ ∆== Therefore, ... stiffness for the mat grillages. Lecture #10 The Design of Mat Foundations - Compensated mats - Rigid mats - Semi-rigid mats Step 5. Find The Bending Moment Distribution Along E Step 5. Find The Bending...
Ngày tải lên: 16/10/2012, 10:43
Consolidation Chareteristics based on a direct analytical solution of the Terzaghi Theory
... was constant conforming to the Terzaghi theory. On the other hand, when these methods predicted different values for the EOP p δ , the v c values estimated from these methods were observed ... of the coefficient of consolidation using the Terzaghi theory. Also, it is observed that the differences in the estimates of v c values using the available methods are primarily due to the ... to those of the Casagrande method. These results also show that the v c values of the proposed method are generally lower than those of the Taylor method the p δ values of the proposed...
Ngày tải lên: 21/03/2013, 14:09
The Design Argument
... point of the multiverse hypothesis is to challenge the design hypothesis, on the assumption that the design hypothesis has already vanquished the hypothesis of chance, then the multiverse hypothesis is ... fruition. If so, the likelihood of the design hypothesis is unity. There are as many likelihoods as there are suppositions concerning the goals and abilities of the putative designer. Which of these, or ... likelihoods of hypotheses, not their probabilities. The second is that it is perfectly true that the prisoner can assert the probability claim (Pf). The question, then, is whether the design argument from...
Ngày tải lên: 01/11/2013, 07:20
Tài liệu The General Theory of Employment, Interest, and Money docx
... &apos ;THEORY OF UNEMPLOYMENT' 20. THE EMPLOYMENT FUNCTION 21. THE THEORY OF PRICES Short Notes Suggested by the General Theory 22. NOTES ON THE TRADE CYCLE 23. NOTES ON MERCANTILISM, THE ... TO THE GERMAN EDITION • PREFACE TO THE JAPANESE EDITION • PREFACE TO THE FRENCH EDITION Book I: Introduction 1. THE GENERAL THEORY 2. THE POSTULATES OF THE CLASSICAL ECONOMICS 3. THE ... AND THE MULTIPLIER Book IV: The Inducement to Invest 11. THE MARGINAL EFFICIENCY OF CAPITAL 12. THE STATE OF LONG-TERM EXPECTATION 13. THE GENERAL THEORY OF THE RATE OF INTEREST 14. THE...
Ngày tải lên: 15/12/2013, 21:15
Tài liệu The Design of Rolling Bearing Mountings P2 ppt
... of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the rotary table. Therefore, the rigidity of the thrust bear- ings is especially important. To increase the ... on the roll- ing bearing aspects of the applications. The operation of the machine allows conclusions to be drawn about the operating conditions which dictate the bearing type and design, the ... roughening of the surfaces (increased running noise). Bearing dimensioning The size of the bearings is dictated by the shaft diame- ter, which in turn is based on the anticipated vibra- tions. The bearing...
Ngày tải lên: 25/12/2013, 05:17
Tài liệu The Design of Rolling Bearing Mountings P1 pptx
... as the floating bearing. As it accommodates the unbalanced loads from the pump impeller both the inner and the outer ring are fitted tightly. The cylindrical roller bearing design depends on the shaft ... 4,225 6 The collective load is the basis for determining the average speeds (2,387 min –1 ) and the average driving speed (111 km/h). For each of the load cases the tooth load acting on the pinion ... clearance Due to the tight fits, the inner ring of the bearing is expanded and the outer ring with the roller-and-cage assembly is contracted. Thus the radial clearance of the bearing is reduced...
Ngày tải lên: 25/12/2013, 05:17
The general theory of employment interest and money (1936)
Ngày tải lên: 31/12/2013, 23:30
Tài liệu Addison Wesley - The Design Patterns Java Companion (1998) docx
... that allows us to display the original data on the left and the sorted data in the cloned class on the right: The left-hand list box is loaded when the program starts and the right- hand list box ... FirstFirst(entry); //or the other } } Using the Factory Let’s see how we put this together. We have constructed a simple Java user interface that allows you to enter the names in either order and see the two ... "+sw.getTime()); } In the original class, the names are sorted by sex and then by time, while in the cloned class, they are sorted only by time. In the figure below, we see the simple user interface...
Ngày tải lên: 16/01/2014, 20:20
An introduction to black holes information and the string theory
... Holes, Information, a nd the String Theory Revolution spatial distance from the origin, but is defined so that the area of the 2- sphere at r is 4πr 2 . The angles θ, φ are the usual polar and azimuthal angles. ... disturbing the black hole and its geometry. Therefore, in principle, the distant observer can obtain information about the neighborhood of the horizon and the infalling sys- tem right up to the point ... Holes, Information, a nd the String Theory Revolution The evolution from one surface of constant ω to another is governed by the Rindler Hamiltonian. Using conventional methods the generator of ω-translations...
Ngày tải lên: 19/01/2014, 13:57
Tài liệu The Design Of Manufacturing Systems P2 docx
... Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology. The designer then tries to find out if the design can be ... that the new feature is placed in the correct position or if the new feature distorts the validity of the existing features. Another issue which comes up in the design by features approach is the ... to capture the design intent for its use in managing the propagation of design changes. Based on the discussion so far it is clear that neither the design by features approach nor the automatic feature...
Ngày tải lên: 19/01/2014, 18:20
Tài liệu The Design Of Manufacturing Systems P1 pptx
... off the solution point from the space of the LP relaxation polyhedron. The process is repeated, thereby reducing the gap between the MILP and its LP relaxation. A network substructure in the ... know the prices of chemicals in the various markets and the operating costs of processes, the problem is then to decide the operating level of each process and amount of each chemical in the list ... (1.41) is the ‘‘first stage’’ problem and problem (1.43) is the ‘‘second stage’’ problem. The interpretation of 2S-SLP is as follows. The decision maker must select the activity levels of the design...
Ngày tải lên: 19/01/2014, 18:20
Tài liệu The Design of Rolling Bearing Mountings P1 docx
... as the floating bearing. As it accommodates the unbalanced loads from the pump impeller both the inner and the outer ring are fitted tightly. The cylindrical roller bearing design depends on the shaft ... the bearings in the axial direction. The bearing seats on the shaft and in the end cap bores must be well aligned. To allow the spring washer to adjust the bearings axially, the outer rings ... rep- resenting the motor torque versus the driving time. The cubic mean of the motor torque and an average speed, which is also determined from the operating graph, form the basis for the rolling...
Ngày tải lên: 23/01/2014, 04:20
Tài liệu The Design of Rolling Bearing Mountings P2 pdf
... reason the brief texts concentrate on the roll- ing bearing aspects of the applications. The operation of the machine allows conclusions to be drawn about the operating conditions which dictate the ... grinding the bearing inner rings and the roll body to finished size in one setting at a roll surface tempera- ture of 220 °C .The inner rings and the roll body can be ground together due to the fact ... are subjected to deflection under the high loads in the rolling gap. In order to still achieve the thickness tolerances of the sheets in the mi- crometer range, the deflection is compensated for...
Ngày tải lên: 23/01/2014, 04:20
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