pla peo pla hydrogels and their mechanical properties

... crystalline and grows along [12-1] direction, which is different from common [1 1] and [1 0] growth direction [26,27] No obvious defects and dislocations are observed, and the interplanar space ... clearly indicates that these nanowires are of uniform size and smooth surface, and the average diameter and length of these nanowires are 80 nm and ␮m, respectively The energy dispersive X-ray spectroscopy ... decomposed into Sn and SnO vapor Sn and SnO vapor subsequently are transported to low temperature zone and form liquid droplets The liquid droplets gradually absorb oxygen and are further oxidized...

Ngày tải lên: 19/03/2014, 16:48

... multiple stands from chair, standing balance, step-up and ambulation Approximately 10 minutes [29] 8.6 minutes (SD = 3.6 minutes) [41] A bed, chair, stop watch, standardised step and gait aid ... unrelated constructs) For groups of patients who are known to differ in their mobility, group mean scores (and standard deviations) and between groups comparison data were extracted as evidence of 'known ... Internal structure and dimensionality MacKnight and Rockwood [27] investigated the internal consistency and unidimensionality of the HABAM with data collected from 204 older people who were admitted...

Ngày tải lên: 18/06/2014, 22:20

... tungsten and as template to direct the hollow structure formation as well This, to our best knowledge, is the first 123 1246 example of using hydrogen gas bubbles as reactant and template at the ... reaction temperature was 100 °C and that the NaBH4 powders must be added step-by-step because the reaction at 100 °C takes place vigorously Coomassie Brilliant Blue and the proteins adsorption experiments ... of the reaction, the solid product was collected by centrifugation and was washed thoroughly using pure water and ethanol, and finally dried at 80 °C under a vacuum (0.01 Torr) Scanning electron...

Ngày tải lên: 22/06/2014, 00:20

... architecture (Ni as core and Co as shell) and studies on their structural and magnetic properties 165 Experimental Alumina membranes (AAO template, Whatman) of high purity and uniform pore density, ... earlier reports on Co NTs and Ni NWs [2, 13] In order to investigate the magnetic properties of crystalline Ni @ Co nanorods, room temperature and low temperature (6 K) magnetic properties of the Ni ... inside MWCNTs and could fabricate co-axial multifunctional nanostructures of MWCNTs and Co NTs [20] Core–Shell nanostructures represent a novel class of hybrid materials, where composition and microstructure...

Ngày tải lên: 22/06/2014, 00:20

... to a dramatic change in their thermal and mechanical properties of the resulting nanocomposites The relations between the VII morphologies and properties were discussed and possible reinforcing ... WAXS, SEM and TEM from different scales Experiments were conducted to investigate the thermal /mechanical properties of the blends, and possible relationships between the morphology and properties ... nanostructures from blending polymer and organophilic clay Their material based on polyamide-6 and organophilic montmorillonite showed dramatic improvements of mechanical properties and thermal resistance...

Ngày tải lên: 16/09/2015, 08:31

... microscope and the receptor molecule on the surface, and their physical properties PEG = polyethylene glycol, a polymer that is used as a linker molecule between the tip of the AFM and the ligand that ... cell and its environment and accommodates diverse membrane proteins The structures of the plasma membrane and proteins associated with it play important roles in cell growth, differentiation and ... when the uremic plasma is washed away and replaced by normal blood plasma There is clearly scope for both low and high resolution studies of the interconversion of pathogenic and normal erythrocytes...

Ngày tải lên: 30/09/2015, 14:23

... lattice planes of CdS (002) and CdSe (002) could be respectively identified on the two ends of the ABA and BAB sandwiched nanorods Other the other hand, lattice planes of CdSe (002) and CdS (002) ... Synthesis and characterization of the CdS|CdSe|CdS and CdSe|CdS|CdSe sandwiched nanorods ………………………… 3.2 32 41 Optical properties of the Au-deposited CdS|CdSe|CdS and CdSe|CdS|CdSe sandwiched ... notably in areas involving the control and manipulation over their growth, sizes, and shapes – all of which would determine their properties, applications and performances At the infancy stage...

Ngày tải lên: 03/10/2015, 21:57

... dramatically affects the physical and mechanical properties Sanders et al.2 compared acrylic resin record bases made from three commercial resins processed by water bath curing and microwave curing energy ... for Evaluation 128 plasticizers and other soluble components may leach out over extended periods, while water or saliva is absorbed The loss of plasticizer may cause brittleness and increased hardness ... hardness and the weight percentages of the insoluble parts The mean domain size and the volume fraction of the rubber phase favor that of the water-bath cured specimens Naik and Jabade4 evaluated and...

Ngày tải lên: 07/08/2014, 14:20

... chemical, and mechanical properties of the bamboo species Phyllostachys pubescens The effects of plant age, horizontal layer, and vertical height location on physical, chemical, and mechanical properties ... fiberboard and evaluate water 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 ... alpha cellulose, and Klason lignin contents and the lowest extractive and ash contents The epidermis had the highest extractive and ash contents and the lowest holocellulose and alpha-cellulose...

Ngày tải lên: 22/02/2014, 09:20

... understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature The concepts of contractility, preload and afterload are paramount to this understanding and ... To understand the hemodynamic events occurring during the different phases of the cardiac cycle and to be able to explain these on the pressure-volume diagram and on curves of pressure and volume ... calcium and sarcomere length (i.e., the basic concepts of excitation–contraction coupling) To understand the basic anatomy of the heart and how whole organ ventricular properties relate to the properties...

Ngày tải lên: 22/02/2014, 09:20

... identity between Hol l and CP2 was  22%, between Phl p and CP1 as well as CP3 19%, and between Phl p and CatB  15% Moreover, the putative active-site amino acid Cys72 of Phl p and Hol l is very ... cysteine residues and other essential amino acids are numbered Areas of high similarity exist around Cys69 and Cys72 and around Trp186, Trp193 and Trp197 The positions of Cys41, 57, 69 and 72 are especially ... among a and b-expansins, which is  25% Furthermore, high similarity is detected between regions surrounding the active sites of the proteinases and their expansin counterparts [4], and their comparable...

Ngày tải lên: 08/03/2014, 22:20

... quality, safety, and mechanical performance (e.g stiffness, strength and impact resistance) Mechanical performance is generally optimized by trial -and- error until the functional demands of the design ... polycarbonate and polymethylmethacrylate, and (b) isotactic polypropylene at a frequency of Hz the linear viscoelastic and plastic range is regarded, and the previously employed mechanical model ... rubber and plastics Rubber Chem Tech., 13, 904–917 Haward, R.N (1942) Extension and rupture of cellulose acetate and celluloid Trans Far Soc., 38, 394–403 Ferry, J.D (1980) Viscoelastic Properties...

Ngày tải lên: 09/03/2014, 00:20

... of microstructure for the corrosion resistance properties, physical properties and mechanical properties of the steels and provide information on their weldability – give advice on the selection ... petrochemical sector, seawater-bearing systems and the offshore industry COMPOSITION AND MECHANICAL PROPERTIES The mechanical properties, corrosion resistance and weldability of a steel are largely determined ... high-temperature properties and are therefore used in furnaces and heat exchangers Their good impact strength at low temperatures is often exploited in apparatus such as vessels for cryogenic liquids Their properties...

Ngày tải lên: 14/03/2014, 12:21

... kox and kred are kcat values for alcohol oxidation and ketose reduction; KiNADH and KiNAD are dissociation constants for NADH and NAD+; and KmRO and KmROH are Michaelis constants for ketose and ... substrate during NADH-dependent reduction of Fru and its absence under conditions in which NADD is used (Fig S4) is plausibly explained by an expanded random kinetic mechanism of AfM2DH (Scheme 2), ... were examined Above the 1% level of activity with Man-ol and Fru, two polyols (d-arabinitol and d-sorbitol) and two ketoses (d-xylulose and l-sorbose) gave signicant conversion rates The known...

Ngày tải lên: 14/03/2014, 23:20

... E Mechanical properties of polymers and composites / Lawrence E Nielsen Robert F Landel — 2nd ed., rev and expanded p cm — (Mechanical engineering ; 90) Includes bibliographical references and ... polymers, and foams VI Creep and Stress Relaxation VII Dynamic Mechanical Properties VIII Other Mechanical Properties A Impact strength Heat distortion temperature C Hardness, wear, and fatigue ... underlying order and organization that can serve as a logical framework and guide to this variety and to the interplay between properties and these structural features The interplay is important...

Ngày tải lên: 22/03/2014, 12:20

... E Mechanical properties of polymers and composites / Lawrence E Nielsen Robert F Landel — 2nd ed., rev and expanded p cm — (Mechanical engineering ; 90) Includes bibliographical references and ... polymers, and foams VI Creep and Stress Relaxation VII Dynamic Mechanical Properties VIII Other Mechanical Properties A Impact strength Heat distortion temperature C Hardness, wear, and fatigue ... underlying order and organization that can serve as a logical framework and guide to this variety and to the interplay between properties and these structural features The interplay is important...

Ngày tải lên: 22/03/2014, 13:20

... mortadella and galantines) from different commercial brands were purchased in retail shops in Spain The 24 samples were 691 bought three times (January, May and October) maintaining brands and meat ... behaviour between profiles and with similar (p > 0.05) values of BS and hardness to textural profile 1, and similar values (p > 0.05) of cohesiveness and springiness to profile 3, and intermediate values ... textural and sensory properties of mortadella, a Spanish cooked meat product International Journal of Food Science and Technology, 41, 1207–1215 Giese, J (1996) Fats, oils and fat replacers Food...

Ngày tải lên: 05/05/2014, 08:43

... form(S) = D0 (S, 1) 92 Classes of groups and their properties If F and G are formations and F ∩ G = (1), then D0 (F ∪ G) = R0 (F ∪ G) Let ∅ = F be a formation and let S be a non-abelian simple group ... the first and third properties leading to the theory of saturated formations and Schunck classes and the associated projectors and the second property to the theory of Fitting classes and injectors ... X and an epimorphism from H onto G); Sn X = (G : G is subnormal in H for some H ∈ X); R0 X = G : there exist Ni G (i = 1, , r) r with G/Ni ∈ X and Ni = i=1 90 Classes of groups and their properties...

Ngày tải lên: 12/05/2014, 01:59

... Donald G LeGrand and John T Bendler Handbook of Polyethylene: Structures, Properties, and Applications, Andrew J Peacock Polymer and Composite Rheology: Second Edition, Revised and Expanded, Rakesh ... Revised and Expanded, Manas Chanda and Salil K Roy Handbook of Radical Vinyl Polymerization, edited by Munmaya K Mishra and Yusef Yagci Photonic Polymer Systems: Fundamentals, Methods, and Applications, ... Thermoplastic Melt Rheology and Processing, A V Shenoy and D R Saini Prediction of Polymer Properties: Second Edition, Revised and Expanded, Jozef Bicerano Practical Thermoforming: Principles and...

Ngày tải lên: 04/06/2014, 14:26

... and average surface roughness (Sa) of all pipettes have been measured Figures 3, 4, 5, and show correlations between pulling parameters and Dt and Sa As it can be seen from Figures 3, 4, 5, and ... 14 and 15) Higher seal resistance for polished pipettes could be explained by their better sealing potential Contact area between pipette tip and cell membrane is higher for polished pipettes and ... conventional and FIB-polished pipettes It is found that polished pipettes make significantly better seals This improvement can be explained by measured surface roughness properties and bearing...

Ngày tải lên: 21/06/2014, 03:20