نتایج جستجو برای: and regeneration mode
تعداد نتایج: 16872694 فیلتر نتایج به سال:
Natural and artificial materials including rocks and cement-based materials such as concrete and cement mortar are affected both physically and chemically by various natural factors known as weathering factors. The freeze-thaw process, as a weathering factor, considerably affects the properties of rocks and concrete. Therefore, the effect of the freeze-thaw process on the physical and mechanica...
Chitosan is a biocompatible material that has been researched in many areas in recent years. As it can be obtained from renewable sources, has antimicrobial properties, is biocompatible, and has no toxic effect, chitosan is currently a widely-used material. The use of chitosan was investigated in different areas related to dentistry. Chitosan is used in the prevention of caries and wear, to inc...
Altering existing buildings for new functions is not a new phenomenon. For example during the Renaissance period, monuments from ancient times were transformed for new uses. During the French Revolution (18th century), religious buildings were transformed for industrial functions or military uses after they had been confiscated and sold. In addition, During the last few decades in Western Europ...
The aim of the present study was the histological evaluation of Enamel Matrix Derivative (EMD) effectiveness for regeneration of periodontal defects. EMD activates cementum synthesis, PDL and bone during the maturation stage of follicole. In this research, EMD was used in surgical defects of premolar teeth in four adult sheep. Muccoperiosteal flap was reflected in buccal site of teeth. The bucc...
Anthemis hyalina DC. is one of the most important herbal medicine plants and is used for anti-allergy and curing skin rashes or acne. To date there is no report for in vitro culture of this species and the present study was performed for the first time with the aim of obtaining the optimized treatment for shoot regeneration. In this research the effect of different plant growth regulators NAA (...
BACKGROUND: In order to investigate the induction of salinity tolerance in CP72-1312 commercial cultivar in tissue culture condition, an experiment was carried out in the tissue culture laboratory of Karoun Agro-Industry Company in 2017 year. OBJECTIVES: At this study we evaluated tolerance of CP73-1312 sugarcane commercial cultivar to salt stress in tiss...
in this paper some new applications of empirical mode decomposition (emd) and hilbert spectrum in seismic ground-roll attenuation, random noise attenuation and spectral decomposition are introduced. hilbert spectrum is a time-frequency representation for hilbert-huang transform which is obtained by combination of instantaneous frequency (if) concept and intrinsic mode function of empirical mode...
Although the nerve auto graft still remains the clinical Gold standard in repairing nerve injury gaps, many advances have been achieved to guide regenerating axons across the lesion. Functional recovery after peripheral nerve lesion is depended upon accurate regeneration of axons to their original target tissues. To increase the prospects of axonal regeneration and functional recovery, research...
who recommends artemisinin-based combination therapies (acts) as the most effective choice to treat malaria. for developing transgenic plants with high accumulation of artemisinin (by introducing genes encoding enzymes which regulate the biosynthetic pathway of artemisinin), an efficient protocol for tissue culture and plant regeneration is necessary. in the present study, leaf explants of arte...
this study contains the identification of modal dynamic properties of a 3-story large-scale steel test frame structure through shaking table measurements. shaking table test is carried out to estimate the modal properties of the test frame such as natural frequencies, damping ratios and mode shapes. among many different model structures, arx (auto recursive exogenous) model structure is used fo...
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