... allow to improve the output of the ALOHA protocol because they bring the certainty that the stations will be careful not to emit if they note that another station is emitting. Another improvement Master ... called reuse distance. The size K of the cluster also constitutes the reuse factor of the carrier. 1. What is the principle of the reuse of frequencies in the domain of the cellular networks? In ... correctly and that another station does not occupy the channel. If another station emits, a random time is waited. If at the beginning, the channel was occupied, the station awaits the next slot. Collision...
Ngày tải lên: 17/09/2012, 09:13
... undertaken. The example below illustrates most of these points – it describes the process surrounding the acquiring of a beverage from a vending machine. The rounded rectangles are Activities, the diamonds ... for use in business process modelling. The example below shows some of these. Note how these icons re-use the boundary, controller and entity icons from the Sequence diagrams. Enterprise Architect An ... systems using the Unified Modelling Language: The Dynamic Model UML Case Tool by Sparx Systems http://www.sparxsystems.com.au © Geoffrey Sparks 2001 Page:1 An Introduction to UML The Dynamic Model by...
Ngày tải lên: 10/12/2013, 14:16
Tài liệu Essential CG Lighting Techniques with 3ds Max P2 docx
... a harmonious part in the cumulative solution, rather than battling against each other. The lighting scheme should emphasize the 3D nature of the medium of CG, showing off the 3D forms to best ... – from the gentle swaying of an outdoor light in the wind to the ESSENTIAL CG LIGHTING TECHNIQUES WITH 3DS MAX24 Color As a visual clue to the type of light source or the time, season and weather ... values: one defines the hotspot and the other controls the falloff. The light’s intensity falls off gradually from 100% at the hotspot angle to 0% at the falloff angle that defines the very edge of...
Ngày tải lên: 19/01/2014, 22:20
Tài liệu Essential CG Lighting Techniques with 3ds Max P1 ppt
... > Theory A little light theory CG lights examined Understanding shadows Part 2 > Techniques Basic lighting techniques Further lighting techniques Radiosity techniques Indoor lighting techniques Outdoor ... outline the basic principles of light that will serve as a guide to the lighting tasks that lie ahead, before moving onto the theory of lighting in 3D. The newcomer in particular will find that the ... another commercial solution, the techniques and concepts contained in these tutorials will be just as applicable, as lighting skills can be learnt and applied in any of these environments. The...
Ngày tải lên: 19/01/2014, 22:20
Tài liệu Báo cáo " Determination of the annual beta dose by meaming beta activity using the liquid scintillation technique " ppt
... shown that the more accurate the beta dose evaluation is, the more reliable is the technique of thermoluminecence dating [5,6]. Fig. 1. the measurement of the gamma dose rate using the radiometer ... Presently, in the ancient pottery TL dating the following steps for the determination of annual dose rate are: (i) place the thermoluminiscnece dosimeter at the field; (ii) determine the environmental ... 2.283 ± 0.073 The equivalent dose (Q) was evaluated applying the additive dose method: The thermoluminescence intensities of the samples were measured after the exposure to the radiation from...
Ngày tải lên: 13/02/2014, 04:20
Tài liệu The Dynamic Retention Model for Air Force Officers- New Estimates and Policy Simulations of the Aviator Continuation Pay Program doc
... depend on the spe- cifics of the ACP program in effect during the period covered by the data used to estimate the parameters of the model. (By specifics we mean, for example, the amount of the annual ... 62 Comparing the Dynamic Retention Model and the Annualized Cost of Leaving Family of Models 15 e key difference from the DRM is that the ACOL is computing the maximum of the expected values rather ... decision at the beginning of the period to either stay or leave. If the officer stays, he or she collects the benefits associated with remaining in the military for a year, including the value of the...
Ngày tải lên: 17/02/2014, 23:20
Tài liệu The SLL Lighting Handbook potx
... and the extent to which the eye is correctly accommodated. As a general rule, the lower the luminance to which the visual system is adapted, the further the target is from the fovea, and the ... SLL Lighting Handbook The Society of Light and Lighting The SLL Lighting Handbook The Society of Light and Lighting 32 Chapter Two: Vision Figure 2.13 The CIE 1931 chromaticity diagram with the ... to the size of the visual detection lobe. Other important factors for determining visibility are the luminance contrast, and the colour of the target relative to the background. There is also the...
Ngày tải lên: 21/02/2014, 22:20
THE DYNAMIC CONSTITUTION An Introduction to American Constitutional Law potx
... 14:31 the dynamic constitution Article II vests the executive power in a President of the United States. It provides for the election of the President and Vice President, then specifies the President’s ... guilty of crimes. 24 The Court thereafter shrank from the limelight. In the immediate aftermath of the Civil War, it declined to exercise powers rather plainly conferred on it by the Civil War Amendments ... note that there were no political parties at the Constitutional Convention. On the contrary, the framers disliked the very idea of parties, which they associated with “factions” hostile to the general...
Ngày tải lên: 16/03/2014, 03:20
Báo cáo khoa học: "The donkey strikes back Extending the dynamic interpretation "constructively"" pptx
... analyzed dynamically already within dynamic logic.) Referee 2. Suggestions for choosing between the static /dynamic versions would enhance the useful- ness of the framework. Choose the dynamic ... not decrease the scope of the account that can then be developed. It would almost surely increase it, but at what cost? The simpler the semantic framework, the better all other things being ... character of the programs used in interpreting formulas dynamically. Whether more effective forms of realizability (incorporating, as was 136 The donkey strikes back Extending the dynamic interpretation...
Ngày tải lên: 18/03/2014, 02:20
Báo cáo khoa học: Curcumin suppresses the dynamic instability of microtubules, activates the mitotic checkpoint and induces apoptosis in MCF-7 cells ppt
... to the pole of the monoastral spindle and also diffused all along the monoastral microtu- bules (Fig. 5B). In the presence of 24 lm curcumin, Eg5 primarily remained confined to the pole of the monopolar ... off with fresh media. The cells were incubated without or with curcumin for 4 and 8 h, and then stained with PI. The effect of curc- umin on the kinetics of the release of the mitotic block was examined ... analysis The effect of curcumin on the polymeric mass of microtu- bules in the cells was analysed by western blot, as described previously [20]. The protein concentrations of the polymeric and the...
Ngày tải lên: 23/03/2014, 03:20
Comparison between the Matrix Pencil Method and the Fourier Transform Technique for High-Resolution Spectral Estimation
... bias but at the same time increases the variance. On the other hand, the use of the Rectangular window makes a FTE biased even for high SNR. In Fig. 21 the behavior of the estimator as the number ... than the TFBMPM. Nevertheless, the rmse obtained with the TFBMPM is less than the one computed using the Standard window as seen in Fig. 19. This is because the Standard window reduces the bias ... the value in work is based on the classic periodogram. The esti- Fig. 15. mates of the frequencies, f ˆ m (m Å 1, , K), will In Fig. 14 the CRB is reached for all u 1 0 u 2 be the values of the...
Ngày tải lên: 26/03/2014, 00:29
báo cáo hóa học:" Femoral tunnel placement in anterior cruciate ligament reconstruction: rationale of the two incision technique" docx
Ngày tải lên: 20/06/2014, 00:20
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