development of mechanical properties through controlled cooling

... Figure Trend of new product (source: Web of Science ® 2010) Mohammadjafari et al 11853 Figure Schematic diagram of the literature Department of Design Department of Production Department of Procurement ... and new product development Future research can improve 11852 Afr J Bus Manage Figure Trend of project management (source: Web of Science ® 2010) Figure Trend of SMEs (source: Web of Science ® 2010) ... the importance of the role of project management in the success of projects, the authors consider related department collaboration on product development by the project manager through ecollaboration...

Ngày tải lên: 07/03/2014, 00:20

... Figure Comparison of experimental modulus with calculated tensile moduli ESTIMATION OF MECHANICAL PROPERTIES OF POLYMERS 1343 Data - calculated Temperature, K Figure Tensile modulus of polystyrene ... ESTIMATION OF MECHANICAL PROPERTIES OF POLYMERS 1335 3e-04 ?c 2e-04 \ i h 2i aJ x le-04 Oe+00 PS AMS PC PPO POMS I 100 300 200 400 500 Temperature, K Figure Thermal expansion data of Roe and ... + dez (25) ESTIMATION OF MECHANICAL PROPERTIES OF POLYMERS where the subscripts x , y , and z denote the stresses and strains in three principal directions In the case of a material being stretched...

Ngày tải lên: 01/04/2014, 00:20

... Manual of ArahWeave Process of Development of Jacquard Design on ArahWeave Process of Development of Jacquard Design on ArahWeave Process of Development of Jacquard Design on ArahWeave Process of Development ... of Development of Jacquard Design on ArahWeave Process of Development of Jacquard Design on ArahWeave Process of Development of Jacquard Design on ArahWeave Process of Development of Jacquard Design ... prepare a Jacquard Weave of the College Logo through CAD  To prepare a Jacquard Weave of the Front View of College and College Reception through CAD Seventh Semester Plan of Work Eighth Semester...

Ngày tải lên: 15/08/2015, 01:53

... mechanism of motor version I 49 Figure 21 The forward bias 51 Figure 22 Prediction of formation of motor using NUPACK 55 Figure 23 Free energies of different parts of motor-track ... measured in number of steps or travel distance made Wild-type kinesins show a typical travel distance of about µm (hundreds of steps, corresponding to a probability of track-attachment of about 99%) ... coupling nanocrystals 22 1.6 Application of nanomotors 23 iv 1.7 Framework of thesis 24 1.7.1 Aim of study 24 1.7.2 Overview of thesis 25 Chapter Design and methods...

Ngày tải lên: 09/09/2015, 08:18

... infraction [25] In view of its importance, a better understanding of the mechanical properties of the collagen should provide insights into the behavior of collagen under different mechanical stress ... Professor Too Heng-Phon Through his infectious enthusiasm, never-ending reminder of “lag-time” theory and superhuman work ethic, I have learned both the complexity of science and profundity of ... substantial part of this thesis was written with the theoretical insights of Prof Raj Rajagopalan as well I thank Prof Raj for acquainting me with the importance of clarity of thoughts in effective...

Ngày tải lên: 09/09/2015, 11:28

... LIST OF TABLES vi LIST OF FIGURES vii LIST OF ABBREVIATIONS xi CHAPTER – INTRODUCTION 1.1 Properties of materials at nanoscales 1.2 Motivation 1.3 Objectives of the experiment 1.4 Outline of the ... established that the mechanical properties of solids are affected by the microstructure of the material For nanoscale structures, their properties are additionally affected by the dimensions of the structure ... of 2µm long cantilevers with a width of 150 nm and thickness of 50 nm (b) Principle of mechanical properties testing [Nilsson et al., 2003] 20 Fig 2.2.6 Rope of single-wall nanotubes freely suspended...

Ngày tải lên: 03/10/2015, 20:32

... Chapter Effects of NH3 Plasma Treatment on Mechanical Properties of Porous Low-k Thin Films 71 4.1 Effects of NH3 Plasma Treatment on the Mechanical Properties of ZIRKON LK2200 ... Characterization of the Improvement of Mechanical Properties of Porous Low-k Thin Film after NH3 Plasma Treatment 54 References 56 Chapter Correlation between Porosity and Mechanical Properties ... the improved mechanical properties with the plasma induced non-porous dense surface layer In the second section, the similar improvement of mechanical properties of yet another type of porous MSQ...

Ngày tải lên: 09/10/2015, 11:18

... component of the OVW with an amplitude similar to the one used for ventilation to avoid the development of atelectasis and to maintain the tidal mechanical stretch also during the assessment of mechanical ... frequencies, suggest- Page of (page number not for citation purposes) Respiratory Research 2008, 9:51 ing that the mechanical properties of the lung are affected during the development of interstitial edema ... on the effects of pulmonary congestion only or on the effects of later stages of acute lung edema When the perturbation was limited to pulmonary congestion, mechanical properties of the lung were...

Ngày tải lên: 12/08/2014, 15:21

... and 2.8(f) These may be thought of as the absence of a plane of atoms (intrinsic stacking faults) or the insertion of rows of atoms that disturb the arrangement of atoms (extrinsic stacking faults) ... approximately 0.3–0.5 of the melting temperature in degrees Kelvin Since the evolution of microstructure is often controlled by diffusion processes, a brief introduction to elementary aspects of diffusion ... example of volume defects is presented in Fig 2.9 This shows MnS inclusions in an A707 steel Another example of a volume defect is presented in Fig 1.16(d) This shows evidence of $1–2 vol % of porosity...

Ngày tải lên: 23/12/2013, 00:15

... of the mechanical properties of materials It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabilities of ... Inc 1 Overview of Crystal/Defect Structure and Mechanical Properties and Behavior 1.1 INTRODUCTION The mechanical behavior of materials describes the response of materials to mechanical loads ... macroscopic level of understanding of structure [Figs 16(a)–(d)] They are often unaware of the atomic and microstructural constituents that can affect the mechanical behavior of materials and of the role...

Ngày tải lên: 23/12/2013, 00:15

... influence of of cooling rate on the structure and resulting mechanical performance is explored for a set of isotactic polypropylenes with varying molecular weight, insertion of co-units and addition of ... resulting different mechanical responses of samples cut from different parts of a typical injection molded plaque of high-density polyethylene Scope of the Thesis Catastrophic failure of polymer artifacts, ... unique set of experiments using extended dilatometry a rheological classification of flow-induced crystallization of iPP by incorporating in a controlled way the effect of pressure, undercooling and...

Ngày tải lên: 22/02/2014, 09:20

... soaking, modulus of elasticity (MOE), modulus of rupture (MOR), and internal bond (IB) properties of the panels and compare the age effect on the physical and mechanical properties of the fiberboard ... 3.1.2 Physical and Mechanical Properties Specific gravity (SG) is a measure of the density of a substance The specific gravity of a substance is a comparison of its density to that of water The specific ... utilization The physical and mechanical properties of bamboo vary with the age of the bamboo and the height of the culm [Chauhan 2000] In general, SG and the properties of bamboo drop from the top...

Ngày tải lên: 22/02/2014, 09:20

... Cardiac Physiology Page of 23 MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM Daniel Burkhoff MD PhD, Associate Professor of Medicine, Columbia University ... maintain an adequate supply of nutrients in the form of oxygenated blood and metabolic substrates to all of the tissues of the body under a wide range of conditions The goal of this manuscript is to ... start with a consideration of ventricular properties at the extreme states of stiffness end systole and end diastole and then explore the mechanical properties throughout the cardiac cycle...

Ngày tải lên: 22/02/2014, 09:20

... P (1940) A study of polymers III Technique of mechanical tests of vulcanizates of rubber and plastics Rubber Chem Tech., 13, 904–917 Haward, R.N (1942) Extension and rupture of cellulose acetate ... full recovery of plastic deformation [8, 9] I NTRODUCTION 1.3 Molecular background Independent of the stress level or amount of deformation involved, the origin of the deformation of polymer materials ... mechanism in the range of temperatures and strain rates of interest A linear dependence of yield stress as a function of log strain rate can be observed over a large interval of strain rates and...

Ngày tải lên: 09/03/2014, 00:20

... of the mechanical properties of materials It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabilities of ... Inc 1 Overview of Crystal/Defect Structure and Mechanical Properties and Behavior 1.1 INTRODUCTION The mechanical behavior of materials describes the response of materials to mechanical loads ... macroscopic level of understanding of structure [Figs 16(a)–(d)] They are often unaware of the atomic and microstructural constituents that can affect the mechanical behavior of materials and of the role...

Ngày tải lên: 14/03/2014, 17:44

... number of atoms of core–shell nanowires are fixed to be 2524 The ˚ unit of the length is in a Table The optimal structural parameters of Si-core/Ge-shell nanowires Radius of core Outer radius of shell ... work is partially supported by the Fund of University of Science and Technology of China, the Fund of Chinese Academy of Science, and by NSFC with code number of 50121202, 60444005, 10574115 and ... about the basic trends in Young’s modulus of the Si/Ge core– shell nanowires can be helpful for understandings of the mechanical properties for other kinds of core–shell nanowires Acknowledgments...

Ngày tải lên: 16/03/2014, 15:22

... Marsh /flood plain 2.5 2 Facies Depth of appearance (m) Thickness of facies (m) Depth of appearance (m) Thickness of facies (m) Depth of appearance (m) Thickness of facies (m) 1.3 m The thick coarse ... of -47.8 m Soil-behavior-type classification of the Vinhlong site was performed using the CPTU results [6,7] A distance of the MR1 borehole and position of the CPTU1 test is 2m Fig Location of ... The alternating of cohesionless and cohesive soil layers results in a saw-tooth shape in the overall plot of qt, fs and u2 as a function of depth The change in the amplitude of the saw-tooth...

Ngày tải lên: 22/03/2014, 12:20

... have desirable mechanical properties at an economical cost For this reason, the mechanical properties may be considered the most important of all the physical and chemical properties of high polymers ... t h e mechanical properties of polymers very complex if it were not for some general phenomena and principles that underlie a l l of these various properties and determine t h e outcome of various ... moderate rates of deformation, the amorphous polymer is soft and flexible and is either an elastomer or a very viscous l i q u i d , Mechanical properties show profound changes in the region of the glass...

Ngày tải lên: 22/03/2014, 12:20

... have desirable mechanical properties at an economical cost For this reason, the mechanical properties may be considered the most important of all the physical and chemical properties of high polymers ... t h e mechanical properties of polymers very complex if it were not for some general phenomena and principles that underlie a l l of these various properties and determine t h e outcome of various ... moderate rates of deformation, the amorphous polymer is soft and flexible and is either an elastomer or a very viscous l i q u i d , Mechanical properties show profound changes in the region of the glass...

Ngày tải lên: 22/03/2014, 13:20

... deformations Mechanical Properties of Carbon Nanotubes 297 Fig HREM images of bent nanotubes under mechanical duress (a) and (b) single kinks in the middle of SWNT with diameters of 0.8 and 1.2 ... number of experimental measurements of the Young’s modulus of nanotubes have been reported The first such study [71] correlated the amplitude of the thermal vibrations of the free ends of anchored ... nevertheless indicative of the exceptional axial stiffness of these materials More recently studies Mechanical Properties of Carbon Nanotubes 293 Fig Top panel: bright field TEM images of free-standing...

Ngày tải lên: 24/03/2014, 05:20