نتایج جستجو برای: average percentage relative error rme
تعداد نتایج: 1061759 فیلتر نتایج به سال:
this study has been conducted to evaluate the effectiveness of the local made charcoal tubes against adsorption of benzene, toluene and xylene vapors. results indicate that desorption capacity and the recovery percentage decrease as the benzene, toluene and xylene concentrations and also relative humidity increase. it is concluded that the water vapor is the major interfere in the adsorption of...
EFFECTS OF RAPID MAXILLARY EXPANSION ON UPPER AIRWAY; A 3 DIMENSIONAL CEPHALOMETRIC ANALYSIS Yoon H. Chang D.D.S. Marquette University, 2011 The purpose of this study was to use cone-beam computed tomography (CBCT) to assess changes in the volume and cross sectional areas of the upper airway in children with maxillary constriction treated by rapid maxillary expansion (RME). The study group cons...
OBJECTIVE To test the hypothesis that there is no difference in the active treatment effects for maxillary advancement induced by bone-anchored maxillary protraction (BAMP) and the active treatment effects for face mask in association with rapid maxillary expansion (RME/FM). MATERIALS AND METHODS This is a study on consecutively treated patients. The changes in dentoskeletal cephalometric var...
The lack of sediment gauging stations in the process of wind erosion, caused of estimate of sediment be process of necessary and important. Artificial neural networks can be used as an efficient and effective of tool to estimate and simulate sediments. In this paper two model multi-layer perceptron neural networks and radial neural network was used to estimate the amount of sediment in Korsya o...
this publication uses a colorimetric method based on the absorbance spectra of dye solutions to improve on beer’s law when calculating the dye concentrations of a three-component mixture. the performance of the new method is compared with that of beer’s law evaluated at three wavelengths, and beer’s law evaluated at 16 wavelengths. colorimetric method gives the best prediction of dye concentrat...
The stability of rapid maxillary expansion (RME) was studied in 20 patients. Study models were evaluated immediately prior to treatment, at the end of treatment, and at least 4 years post-treatment with regards to maxillary and mandibular intermolar widths, intercanine widths, arch perimeters, and irregularity indices. The mean maxillary intermolar width increased by 3.7 mm during treatment, an...
Purpose: The present research has been carried out with the purpose of studying the analytic cataloging and classification (library of congress) of Arabic books in National Library & Archives of IR of Iran during 2001-2007. Methodology: In this research whose methodology is of documentary method, a list made by the researcher was used for data collection. The samples included 300 catalogues of...
BACKGROUND The study aimed to evaluate and compare the stress distribution and 3-dimensional displacements along the craniofacial sutures in between the Rapid maxillary Expansion (RME) and Implant supported RME (I-RME). METHODS: Finite element model of the skull and the implants were created using ANSYS software. The finite element model thus built composed of 537692 elements and 115694 nodes ...
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