نتایج جستجو برای: rotary prism

تعداد نتایج: 19144  

2015
Han Liu

Prism has been developed as a modular classification rule generator following the separate and conquer approach since 1987 due to the replicated sub-tree problem occurring in Top-Down Induction of Decision Trees (TDIDT). A series of experiments have been done to compare the performance between Prism and TDIDT which proved that Prism may generally provide a similar level of accuracy as TDIDT but...

2015
David A. Goss Erin Babinsky

Background: Clinical determination of convergence accommodation to convergence (CA/C) ratios may be useful for analysis of accommodation and vergence disorders, but there are no standard clinical methods of measurement of CA/C ratios. This study compared two potential clinical CA/C measurement methods to a laboratory procedure. Methods: CA/C ratios were measured for 19 young adult subjects usin...

2013
Ali Khajeh Noor Mohammad Noori Mohsen Reisi Afshin Fayyazi Mahdi Mohammadi Ghasem Miri-Aliabad

OBJECTIVE The Pediatric Risk of Mortality (PRISM) score is one of the scores used by many pediatricians for prediction of the mortality risk in the pediatric intensive care unit (PICU). Herein, we intend to evaluate the efficacy of PRISM score in prediction of mortality rate in PICU. METHODS In this cohort study, 221 children admitted during an 18-month period to PICU, were enrolled. PRISM sc...

Journal: :Expert Systems 2014
Frederic T. Stahl Max Bramer

Ensemble learning can be used to increase the overall classification accuracy of a classifier by generating multiple base classifiers and combining their classification results. A frequently used family of base classifiers for ensemble learning are decision trees. However, alternative approaches can potentially be used, such as the Prism family of algorithms which also induces classification ru...

2012
María Peñarrocha-Diago Miguel Peñarrocha-Diago Cristina Sanchez-Recio David Peñarrocha-Oltra Javier Romero-Millán

PURPOSE The present study investigates sinus membrane rupture in direct maxillary sinus lift with the rotary technique and with ultrasound, examining the survival of implants placed after sinus augmentation, and analyzing the bone gain obtained after the operation and 12 months after placement of the prosthetic restoration. MATERIALS AND METHODS A retrospective study was made of 45 patients r...

Journal: :Journal of oral science 2009
Shahriar Shahi Hamid R Yavari Saeed Rahimi Mohammad F Reyhani Zahra Kamarroosta Majid Abdolrahimi

The aim of this study was to evaluate the effect of RaCe, FlexMaster and ProFile rotary instruments on smear layer formation by scanning electron microscopy. Eighty-four caries-free freshly extracted human single-rooted teeth were selected and divided into three groups, each containing 28 teeth. The teeth were instrumented with rotary instruments sequentially: Group A: ProFile Rotary Instrument...

2018
Angsana Jainaen Nipitporn Mahakunakorn Uthaiwan Arayatrakullikit Pipop Sutthiprapaporn Rajda Noisombat

Aim The aim of this study is to compare curved root canal preparation between reciprocal rotary files and rotational rotary files in extracted teeth using cone-beam computed tomography (CBCT). The independent variable was the file type (reciprocal vs. rotary), and the primary outcome variable was the centering ratio of distance change after canal preparation. Secondary outcomes were canal trans...

Journal: :E3S Web of Conferences 2019

2017
K E Dunn M C Leake A J M Wollman M A Trefzer S Johnson A M Tyrrell

DNA has been used to construct a wide variety of nanoscale molecular devices. Inspiration for such synthetic molecular machines is frequently drawn from protein motors, which are naturally occurring and ubiquitous. However, despite the fact that rotary motors such as ATP synthase and the bacterial flagellar motor play extremely important roles in nature, very few rotary devices have been constr...

Journal: :The Quarterly journal of experimental psychology. A, Human experimental psychology 2004
Arlette Streri Edouard Gentaz Elizabeth Spelke Gretchen Van de Walle

Four-month-old infants were allowed to manipulate, without vision, two rings attached to a bar that permitted each ring to undergo rotary motion against a fixed surface. In different conditions, the relative motions of the rings were rigid, independent, or opposite, and they circled either the same fixed point outside the zone of manipulation or spatially separated points. Infants' perception o...

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