نتایج جستجو برای: fibers

تعداد نتایج: 70489  

برقی , عفت,

Background and purpose : Muscle spindle is responsible for the control of skeletal muscle fibers function at rest and movement cycle, and is known as servo agent for voluntary movement. Function of this kinetic neceptor is completely dependent on the γ- ring activity would bring activity of la fiber and group ÏÏ spindle muscle afferent. Âlso, there is close functional of muscle relationship b...

Journal: :int. j. lignocellulosic products 2014
m. mehdinia a. a. enayati m. layeghi

the use of agriculture residues as filler in composites is increasing due to their strength, abundance and low cost. soya stalks show promising renewable natural fiber. in polyethylene composites the physical and mechanical properties (flexural resistance, tensile, impacted absorbed energy, water uptake and thickness swelling) was examined at different composites. the results showed that, the m...

Journal: :international journal of nano dimension 0
r. dashtbani m.sc. student of pulp & paper industry, department of wood & paper engineering, gorgan university of agriculture science & natural resources, gorgan, iran. e. afra associate professor of pulp & paper technology, department of wood & paper engineering, gorgan university of agriculture science & natural resources, gorgan, iran.

one of the main issues of nanotechnology is producing materials with new properties. nanotechnology, as a powerful tool, has the ability to create evolution in the agricultural system and food–medicinal industries across the world. producing a high-performance material from reclaimed cellulose material will increase motivation to recycle these materials at all phases of paper production and rem...

Journal: :علوم و تکنولوژی پلیمر 0
ایمان شعبانی اعظم جلالی آرانی هادی رمضانی داخل

in this work, leather fibers were employed as a component of elastomeric compounds based on nbr, cr and epdm and studied were made on their effects upon curing characteristics and mechanical properties of the prepared compounds. evaluation of curing characteristics of the compounds demonstrated that leather fibers have no considerable effect on initial viscosity and curing time of the compounds...

Stickiness is the physical process of contaminated lint adhering to equipment. The degree of stickiness depends on chemical identity, quantity, and distribution of the sugars. The sugar in cotton fibers may be insect or plant derived. There are several methods for measuring cotton fibers stickiness. In this work, a colorimetric method was used for the measurements. In the method, honeydew was c...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
zhang yanli li dongguang

a type of novel hypercross-linked fiber adsorbent was obtained by sulfonation and cross-linking reaction of polypropylene fiber grafted styrene-divinylbenzene. the aim of the fiber sulfonation and cross-linking method was to prepare rigid three dimensional networks in the entire fiber and change the ion exchange capacity of fiber. the hypercross-linked fiber adsorbent possesses a principally di...

Journal: :journal of structural engineering and geo-techniques 2011
iman mehdipour nicolas ali libre mohammad shekarchia

the sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. to address this, development of a new class of more sustainable cement-based materials is needed. fiber reinforced self-consolidating mortar (frscm) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...

Gila Behzadi, Mehdi Mehdizadeh, Parichehr Pasbakhsh,

Background: Mediodorsal (MD) thalamic nucleus, which is considered to take place between extra pyramidal and limbic feedback circuit, receives projective fibers from ventrolateral neurons of reticular part of substantia nigra (SNr). In order to better understand the influence and chemical reaction of these fibers upon MD nucleus, the morphology and synaptology of them were examined in the prese...

Journal: :international journal of advanced design and manufacturing technology 0
mahmoud asadzadeh s.mohamad reza khalili reza eslami farsani siamak rafizadeh

in this research work, the effects of natural fibers such as date palm fiber (df) and jute fiber (jf) on bending properties of polypropylene (pp)/ ethylene–propylene–diene–monomer (epdm) thermoplastic elastomers are investigated. for this purpose, the date palm and jute fibers at five levels of fiber weight fractions (0, 5, 10, 20 and 30 wt. %) are utilized during composite fabrication. maleic ...

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