نتایج جستجو برای: loss to storage modulus ratio

تعداد نتایج: 10782248  

2012
Nuha Salim Mashaan Mohamed Rehan Karim

There is substantial evidence on the advantages of using crumb rubber in enhancing conventional bitumen properties, gaining environmental protection and boosting industrial-economical benefits. Thus, the use of this ingenious additive in bitumen modification through sustainable technology is highly advocated.The main objective of this research is to investigate the effects of different blending...

Journal: :European cells & materials 2011
S K L Lam S C W Chan V Y L Leung W W Lu K M C Cheung K D K Luk

Implantation of intervertebral disc (IVD) allograft or tissue engineered disc constructs in the spine has emerged as an alternative to artificial disc replacement for the treatment of severe degenerative disc disease (DDD). Establishment of a bank of cryopreserved IVD allografts enables size matching and facilitates logistics for effective clinical management. However, the biomechanical propert...

Journal: :ماشین های کشاورزی 0
رمضان میرزایی سعید مینایی محمدهادی خوش تقاضا علی محمد برقعی

the most important quality indicator of fruits is the flesh firmness which is well correlated to their young’s modulus. in this research variation of vibration characteristics (shape modes, natural frequency) of apple due to change of material characteristics (density, young's models, poisson ratio) and apple volume was investigated using finite element simulation. an image processing technique...

According to contact type, RF MEMS switches are generally classified into two categories: Capacitive switches and Metal-to-Metal ones. The capacitive switches are capable to tolerate a higher frequency range and more power than M-to-M switches. This paper presents a cantilever shunt capacitive RF MEMS switch with characteristics such as low trigger voltage, high capacitive ratio, short switchin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

Journal: :modares journal of medical sciences: pathobiology 2012
soheila ali akbari ghavimi mehran solati-hashjin mohammad hossein ebrahimzadeh mohammad ali shokrgozar fateme fayyaz bakhsh

objective: biodegradable polycaprolactone/starch composites can be used for bone tissue engineering applications. the effect of the ratio of components on composite properties is of tremendous importance. methods: polycaprolactone/starch composite of 80/20 and 70/30 ratios were fabricated by dissolving them in chloroform followed by evaporation of the solvent. results: the composites were chara...

Journal: :Biophysical journal 2003
Gabor Forgacs Stuart A Newman Bernhard Hinner Christian W Maier Erich Sackmann

We have studied the structural and viscoelastic properties of assembling networks of the extracellular matrix protein type-I collagen by means of phase contrast microscopy and rotating disk rheometry. The initial stage of the assembly is a nucleation process of collagen monomers associating to randomly distributed branched clusters with extensions of several microns. Eventually a sol-gel transi...

Journal: :Journal of Renewable Materials 2023

To understand the effects of filler-asphalt ratio on different properties lignin and polyester fiber reinforced shape memory polyurethane (SMPU)/styrene butadiene styrene (SBS) composite modified asphalt mortar (PSAM), as well to reveal reinforcing toughening mechanisms fibers PSAM, SMPU, SBS mineral powder were first utilized prepare PSAM. Then conventional, rheological anticracking PSAM (LFAM...

Journal: :Dental materials journal 2015
Kazuma Takase Ikuya Watanabe Tadafumi Kurogi Hiroshi Murata

This study assessed methods for evaluation of glass transition temperature (Tg) of autopolymerized hard direct denture reline resins using dynamic mechanical analysis and differential scanning calorimetry in addition to the dynamic mechanical properties. The Tg values of 3 different reline resins were determined using a dynamic viscoelastometer and differential scanning calorimeter, and rheolog...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2017
Emily R Draper Matthew Wallace Ralf Schweins Robert J Poole Dave J Adams

Multicomponent low molecular weight gels are useful for a range of applications. However, when mixing two components, both of which can independently form a gel, there are many potential scenarios. There is a limited understanding as to how to control and direct the assembly. Here, we focus on a pH-triggered two-component system. At high pH, colloidal structures are formed, and there is a degre...

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