... modulus and damping. Here the weight of the upper sample champ and the inertia bar are supported by a compliant torsion wire suspension or a magnetic suspension (10) to prevent creep of the specimen ... history 7. Nature of surrounding atmosphere, especially moisture content There is a strong dependence on temperature and time of the properties of polymers compar...
Ngày tải lên: 22/03/2014, 12:20
... modulus and damping. Here the weight of the upper sample champ and the inertia bar are supported by a compliant torsion wire suspension or a magnetic suspension (10) to prevent creep of the specimen ... history 7. Nature of surrounding atmosphere, especially moisture content There is a strong dependence on temperature and time of the properties of polymers compar...
Ngày tải lên: 22/03/2014, 13:20
The Estimation of Mechanical Properties of Polymers from Molecular Structure ppt
... V[(dV)/(dT) ]p and B = -V[(dP)/(dV) ]p are 1331 1350 SEITZ PE PEA PEC PEIS PEMA PES PET PETG PHEN PHMA PI PIB PMA PMMA POM POMS PP PPE PPMA PS PSF PTBS PTFE PVA PVBE PVC PVEE ... ABBREVIATIONS OF POLYMER NAMES APA ARYL CHDMT NY POMA P4 MP PaMS PBA PBD PBE PBMA PBRS PC PCLST PDMPO O-CLST amorphous polyamide Copolyester of isopthalic,...
Ngày tải lên: 01/04/2014, 00:20
Mechanical properties of solid polymers Constitutive modelling of long and short term behaviour pptx
... of polymer materials in structural applications has assumed large proportions over the last decades. To ensure proper operation under heavy duty conditions, these applications have to meet specific ... temperatures are generally no longer superimposable, like in Figure 1.4(a), by pure horizontal shifting and, therefore, a direct application of the principle of time-temperature superpos...
Ngày tải lên: 09/03/2014, 00:20
Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
... by keeping this view in our mind we have proposed the studies on structural analysis and magnetic properties of Co–Ni ferrite with the above mentioned compositions by co – precipitation method, ... (422), (511) and (440). These planes are indications of the presence of a spinel cubic structure. The diffraction lines corresponding to a cubic, spinel-type and crystalline phas...
Ngày tải lên: 13/02/2014, 04:20
Tài liệu PHYSICAL, CHEMICAL, AND MECHANICAL PROPERTIES OF BAMBOO AND ITS UTILIZATION POTENTIAL FOR FIBERBOARD MANUFACTURING docx
... physical and mechanical properties. Such variation can lead to obvious physical and mechanical properties changes during the growth and maturation of bamboo. This chapter concentrates on a detailed ... ages and height locations were determined. MDF is the most commonly industrially produced type fiberboard and often has excellent physical mechanical properties, and...
Ngày tải lên: 22/02/2014, 09:20
Tài liệu MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM ppt
... remainder of this manuscript will focus on a description of the pump function of the ventricles with particular attention to a description of those properties as represented on the pressure-volume ... requiring process. Calcium sequestration is primarily accomplished by pumps on the SR membrane that consume ATP (SR Ca 2+ ATPase pumps); these pumps are located in the centr...
Ngày tải lên: 22/02/2014, 09:20
Báo cáo khoa học: Design of expression vectors for RNA interference based on miRNAs and RNA splicing potx
... Journal compilation ª 2006 FEBS which consist of intronic miRNAs in protein-coding transcripts [8,9]. Separation by splicing of the miRNA component from the 5¢ CAP-exon-EGFP-3 ¢ poly(A) component ... miR30- and miR155 -based artificial miRNAs, pSM30 and pSM155. Part of the cytomegalovirus (CMV) promoter and a synthetic exon and intron were amplified from pCI-Neo (Promega, Madison...
Ngày tải lên: 07/03/2014, 11:20
Báo cáo khoa học: A novel transmembrane topology of presenilin based on reconciling experimental and computational evidence pptx
... GPCR, G protein-coupled receptor; HR, hydrophobic region; IMPAS, intramembrane proteases; NTF, N-terminal fragment; PS, presenilin; PSH, presenilin-homolog; PSL, presenilin-like; SPP, signal peptide ... aph-1 and pen-2 [3,4]. This complex is responsible for the intramembrane proteo- lysis of type I membrane proteins, such as amyloid-b precursor protein (APP) and Notch. PS has 10 Keyword...
Ngày tải lên: 23/03/2014, 13:20
synthesis and characterisation of materials based on inorganic
... formation of sodium unchanged, but the addition of the solid aluminous com- carbonate in the poorly cured samples Na–PSS2–Na– ponent (metakaolinite) in proportions corresponding to PSS7, by atmospheric ... selection of typical powder X-ray diffraction patterns and a resonance at 28 ppm which is often attributed to Al of the starting materials and polymers of different com- in...
Ngày tải lên: 30/05/2014, 12:08