predictors of maintained behavior change with emphasis on weight loss
Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_1 pot
... more different combinations of tool and workpiece Whereas, the ‘long tests’ can produce a more complete depiction of the anticipated conditions for various combinations of tool and workpiece, ... its linear dimensional change from its original gauge length cutting speed in conjunction with the amount of tool flank wear – for two separate tests – allows the values of the constants (i.e.‘α’ ... equivalent inspection routine on the CMM This perceived difference in accuracy and precision, was the result of part changes caused by both relaxation of the clamping forces – upon release – and...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_2 docx
... consists of portioning the total variation present in a data set into ‘components’ Each ‘component’ is attributed to an identifiable cause, or source of variation; in addition, one ‘component’ represents ... technique in conjunction with a strictly controlled and limited machining strategy – based upon some form of ‘orthogonal array’ , in combination with the ‘strength’ (i.e >5% ‘F-ratio’) of parameters ... functions 15 ‘Value Engineering and Analysis’ (VE/VA), with VE being principally concerned with an overall improvement of designbased details on engineering components, while a more limited form of...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_4 pot
... area of the chip shape and its corresponding ‘Y’ direction The orientation of the modulation direction ‘Y’ toward a dynamically more-rigid direction angle, allows a decrease in vibrational response, ... output of a system with respect to that of the input – the conditions of operation and measurements must be specified’ (Smith, 1993, et al.) of increasing the frictional contact at the interface ... set of conditions for a particular machining operation 7.3.2 Chatter – Important Factors Affecting its Generation In the previous sections, a brief discussion was made concerning just some of...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_5 pdf
... and position of the honing stroke, the honing stick pressure (Vc) The inclination angle of the cross-honing action, is a product of the up-/down-ward head motion (Vo) and the rotational speed ... texture comprises of: ‘long-’, ‘medium-’ and ‘short-components’, together with the ‘direction of the dominant pattern’ – superimposed upon each other [Courtesy of Taylor Hobson] Machinability ... (Vo) This complex action of rotating and linear motion, generates the desired cross-honed ‘Lay-pattern’ within the bore – for improved oil retention 313 sos, or conditions that must be met, if...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_7 ppt
... range of the ‘beta-function’ equation above, from: 0→1 to Rp + Rv, or indeed with that of Rt, then substituting σ (i.e the standard deviation of the distribution) with Rq, the beta-function parameters ... insert) only the conduction term remains ∴ Rate of heat generation (˙ ) = σ ε q ˙ Where: ‘σ’ was obtained from an emprical function of: ‘ε’ , ‘˙’; plus ‘T’ ε NB This rate of heat generation only ... – at the boundary of γ the triangular secondary zone The frictional stress along the tool/chip interface can be assumed to be constant along the first half of the contact region, then linearly...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_8 doc
... deformation – occurs when high pressures (i.e compression) are exerted on the cutting edge in combination with elevated temperatures Conditions likely to create plastic deformation on the cutting ... generally on a quantitative basis Today, we are concerned with ‘atomic migration’ within metallic solid solutions Fick produced two laws, with Fick’s 1st Law stating: ‘That the amount (J) of a material ... final stages of diffusion are somewhat slow, due to the rate of diffusion decreasing as the concentration gradient diminishes (Higgins, 1979) 65 ‘Atomic diffusion process’ , there is strong evidence...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_9 docx
... tooling, in conjunction with the application of efficient cutting conditions The following simple formula can be utilised to calculate the ROI for a particular: production operation; machine tool; ... means of condition monitoring of the cutting tool’s state – more will be said on this topic later In metal cutting operations AE occurs due to plasto-mechanical processes of crack formation and ... appropriately positioned stationary antenna The telemetry involves a bi-directional transmission, with measured data being transmitted to the ‘stationary side’ of the monitoring system and any control commands...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_10 ppt
... majority of engineering applications this real contact area (‘Ar’), is normally only a very minute portion of the apparent real of contact (‘Aa’) – even after the contacting asperities of the softer ... ‘apparent’ areas of contact were ‘equalised’ in this region Therefore, under ‘sticking friction’ conditions, the ‘mean angle of friction’ on the rake face, depends on the: Form of the normal stress ... Coulomb (1785), confirmed these ‘frictional laws’ with the observation that: ‘The coefficient of friction* is substantially independent of the speed of sliding.’ *Coefficient of friction (µ) = F/N...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_11 pot
... Chapter 7.10 Surface Integrity of Machined Components – Introduction fects when discussing the machined surface condition in the following section Previously in Section 7.5 concerning machined surface ... presents on the surface, moreover, there was a cutting/fracture sequence indicated with confirmation of work-hardening having ‘layered scales’ of with cracks and crevices beneath them Conversely, ... underlying ‘whitelayer’ condition was present, having a local recorded hardness of 860 HVPN By way of comparison, if this same alloy steel composition had received a ‘conventional’ hardness heat-treatment...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_12 pptx
... of tensile residual stress was apparent in the immediate surface region Here, directly under this tensile stress zone, the stress concentration changed to one of compression (i.e to a depth of ... ‘white-layer’ region extends to quite a small depth beneath the surface, in the region of 10 to 100 µm, depending upon the severity of the ‘abusive regime’ of surface generation Considering Fig 191 once again, ... substrate compression layer also increased in magnitude, which could lead to considerable workpiece distortion, once the clamping forces had been released – particularly if only one-side of the part...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_13 doc
... 225–257, 1993 Taylor, F.W On the Art of Cutting Metals Trans of ASME, Vol 28, 31, 1907 Thomsen, E.G., Application of the Mechanics of Plastic Deformation to Metal Cutting Annals of the CIRP, Vol 14, ... Properties of Engineering Materials Hodder and Stoughton Educ., 1979 Influence of Metallurgy on Hole Making Operations American Soc of Metals (Ohio), 1978 Influence of Metallurgy on Machinability ... Soc of Metals (Ohio), 1975 Preliminary Study of Variations in Machinability of Carbon Steel PERA Pub No 179, April 1968 Kaczmarek, J Principles of Machining by Cutting, Abrasion and Erosion Peter...
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Báo cáo khoa học: "Characteristics of equine summer eczema with emphasis on differences between Finnhorses and Icelandic horses in a 11-year study" pdf
... (1.1%) Duration of disease mean ± sd/years 3.6 ± 2.7 3.0 ± 1.9 3.5 ± 1.2 3.7 ± 2.5 275 Age at onset and duration of disease are listed in the commonest breeds affected the duration of the disease ... way analysis of variance was used, when the relation between the age of outbreak or duration of disease and severity of clinical signs was assessed Two sided P-values < 0.05 were considered significant ... breeds, both of them represented 33% of the affected ponies, while all the rest were of different pony breeds (Table 1) Of the horses, 48% were female and 52% male; geldings and stallions formed...
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Tài liệu Insight into Alternative Approaches for Control of Avian Influenza in Poultry, with Emphasis on Highly Pathogenic H5N1 doc
... [4] Constant genetic and antigenic variation of AIV is an intriguing feature for continuous evolution of the virus in nature [5] Gradual antigenic changes due to acquisition of point mutations ... infection of chicken and duck cells with several AIV subtypes including HPAIV H5N1 [241–244] Additional genetic candidates that contribute to inhibition of AIV replication could be useful in creation ... Additional effects as antioxidants, antiinflammatory, etc • No adverse effects on body weight, egg production • Extraction is very expensive • Affection with antigenic changes, herb-drug interactions,...
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Báo cáo khoa học: " Gastrointestinal toxicity of vorinostat: reanalysis of phase 1 study results with emphasis on dosevolume effects of pelvic radiotherapy" potx
... reanalysis of phase study results with emphasis on dose-volume effects of pelvic radiotherapy Radiation Oncology 2011 6:33 Submit your next manuscript to BioMed Central and take full advantage of: • Convenient ... criterion Unlike early-phase studies with systemic therapies, where location of disease manifestations presumably is less critical for evaluation of treatment tolerability, the anatomic site of the ... with dose [1] In the context of combining a systemic targeted agent with radiotherapy, it is acknowledged that the delivered radiation dose may on occasion be close to or even at the limits of...
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báo cáo khoa học: "Transcriptional analysis of cell growth and morphogenesis in the unicellular green alga Micrasterias (Streptophyta), with emphasis on the role of expansin" pot
... qRT-PCR expression values Page 15 of 17 Additional file 5: Comparison of the expression profiles of selected TDFs obtained by cDNA-AFLP and qRT-PCR for the samples of replication Additional file 6: ... experimental conditions, slightly higher than the cut-off value of 0.15 The inclusion of a fourth internal control gene resulted in an increase of the pairwise variation, yielding a V3/4 value of 0.129 ... cell wall components appear to be adaptations of land plants, cell wall evolution after the colonization of land is seemingly characterized by the elaboration of a pre-existing set of genes and...
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Life cycle analysis of electricity generation systems with implications on climate change policy
... : carbon (GHG) emissions : carbon emissions due to Energy Input : extrinsic emission of “Process” input : carbon emissions from fuel fabrication : intrinsic emission of “Process” input ... there can be reliability issues with the methodology, especially on the inclusion of carbon emission streams. Warner and Heath [59] schematized a harmonization method for an LCA on fission power generation. The ... assessment with the most common dilution between the study on carbon emissions and waste stream generation. On the timeframe of assessment, there was a lack of distinction between lifetime of a power plant and lifetime ...
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STUDYING THE EFFECTIVENESS OF ANIMATION AND GRAPHICS WITH TEXT ON FOURTH, FIFTH AND SIXTH GRADERS potx
... higher education v TABLE OF CONTENTS ABSTRACT Page ii ACKNOWLEDGEMENTS iv TABLE OF CONTENTS v LIST OF FIGURES AND TABLES viii I INTRODUCTION Context of Study Effects of combining visuals with text ... dynamic animations This study explores the potential of combining animations with text in a computer assisted instructional environment CONTEXT OF THIS STUDY With the advancement in educational technology, ... Houghton, 1987) There is a general consent on the beneficial contribution of graphics with the related text information for the readers (Morrison, Ross, & Kemp, 2001) Graphics are a good source of...
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Báo cáo hóa học: " Iterative Pilot-Layer Aided Channel Estimation with Emphasis on Interleave-Division Multiple Access Systems Hendrik Schoeneich and Peter Adam Hoeher" docx
... m, ≤ m ≤ Mu , of user u, ≤ u ≤ U The received samples of (1) are fed into the MLD and PLACE unit One iteration consists of an estimation of h based on P and the extrinsic information from the last ... numerical results in Section We therefore give a short description of this type of MLD for convenience The interference cancelation is done in a parallel fashion and is based on soft chip values from ... type of channel estimation can be taken out of the iterative process The channel estimation is performed only once before the first detection and the resulting channel estimates are used without change...
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Representation and Decision-Making in Environment Planning with Emphasis on Energy Technologies doc
... organisations that have been espoused in the form of declarations, programmes of action and resolutions The Declaration of the UN Conference on the Environment of 1972 (Stockholm Declaration) presents ... control not cause damage to the environment of other States or of areas beyond the limits of national jurisdiction.” The conception of the international responsibility of States expressed by this principle ... Declaration, the United Nations Framework Convention on Climate Change (UNFCCC), the United Nations Convention on Biological Diversity and the Statement of Forest Principles.10 The working definition...
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Báo cáo khoa học: "Effects of propranolol in combination with radiation on apoptosis and survival of gastric cancer cells in vitro" ppsx
... were considered statistically significant Analysis of the data and plotting of the figures were performed with the aid of software (Origin Version 7.5 and SPSS Version 13.0) Results Expression of ... In addition, propranolol showed a synergism of growth inhibition in combination with irradiation in SGC-7901 and BGC-823 cells On the contrary, isoproterenol demonstrates anti-irradiation effects, ... combination of propranolol and irradiation leads to higher apoptosis rates compared with irradiation only In addition to this, less apoptosis was observed in comparison to the irradiation-only group...
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