نتایج جستجو برای: syntaxonomic class
تعداد نتایج: 399392 فیلتر نتایج به سال:
In this work, different kinetic patterns (homographic, exponential-linear and exponential) of hydraulic resistance in ultrafltration process of a colloidal system have been investigated. Exponential kinetic model, as the best approach, was employed for description of dynamic hydraulic resistance of skim milk ultrafltration at different feed flow rates (FR) (10, 30 and 46 L...
Emergence of nanotechnology has resulted in the introduction of the electrospinning process in fabricating and characterising the polymer electrolyte membrane from the sulfonated poly (ether ether ketone) (SPEEK) nanocomposite membrane comprised of electrospun Cloisite15A® (e-spun CL...
Among the various phases of alumina, two phases γ and α are the most widely used in variousindustries. In this paper, γ-Al2O3 porous nanoparticles have been successfully synthesized from a s...
In this paper, we examine Decision Graphs, a generalization of decision trees. We present an inference scheme to construct decision graphs using the Minimum Message Length Principle. Empirical tests demonstrate that this scheme compares favourably with other decision tree inference schemes. This work provides a metric for comparing the relative merit of the decision tree and decision graph form...
چکیده ندارد.
historically, the majority of immigrants to the united states came from european countries. the 1965 immigration reform act (ira) fundamentally changed the configuration of immigrants to the united states. the largest immigrant communities now consist of latin americans, asians, and africans. another important development in immigrant communities in the past few decades has been the growth of a...
immunoglobulin class switch recombination deficiencies (ig csr deficiencies) or hyper igm syndromes (higm) are a group of primary immunodeficiency diseases, characterized by defective cd40 signaling of b cells resulting into a csr and a somatic hypermutation. the affected patients are characterized with reduced serum levels of igg and iga, and normal or elevated level of igm, which lead to incr...
objective: adaptation of the pharyngeal airway space does occur after different surgical strategies of class iii patients including mandibular setback, maxillary advancement and bimaxillary surgery. the aim of this study is to conduct a detailed cephalometric evaluation of the alterations taking place in the morphology of the pharyngeal airway space after treatment of class iii skeletal deformi...
سابقه و هدف: نقش زاویه بین قاعده خلفی و قدامی جمجمه در تعیین محل گلنوئید فوسا و به تبع آن موقعیت قرارگیری مندیبل از نظر قدامی خلفی مورد بحث بوده و این طور بیان گردیده است که زاویه saddle بزرگ باعث بروز مال اکلوژن class iiو بالعکس زاویه saddle کوچک باعث حرکت رو به جلوی مندیبل و مال اکلوژن class iii می شود. این موضوع باعث پیدایش این نظریه در میان بعضی از محققین گردید که در مواردی که ناهنجاری clas...
In this study, the effect of SiO2 and TiO2 nanoparticles on the gas separation performance of the polyurethane (PU) membranes has investigated. Polyurethanes were synthesized by bulk two step polym...
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