نتایج جستجو برای: permanent displacement

تعداد نتایج: 116516  

Journal: :Lab on a chip 2012
Thomas P Forbes Samuel P Forry

Immunomagnetic isolation and magnetophoresis in microfluidics have emerged as viable techniques for the separation, fractionation, and enrichment of rare cells. Here we present the development and characterization of a microfluidic system that incorporates an angled permanent magnet for the lateral magnetophoresis of superparamagnetic beads and labeled cell-bead complexes. A numerical model, ba...

2016
Vivek Mehta

A supernumerary tooth is a tooth that is additional to the normal set of teeth and are most commonly seen in the anterior maxillary region [1]. Supernumerary teeth are more common in permanent dentition as compared to primary dentition. The prevalence is 0.15–1% in permanent dentition and 0.3–0.6% in the primary dentition with proportion of 2:1 for male sex [2]. The presence of a supernumerary ...

2008
D. Muir Wood

Aseismic design of gravity wall still is a more difficult issue. The reason stems from the complexity of the problem which requires skills in soil mechanics, foundation engineering, soil-structure interaction along with knowledge of structure dynamics. Designing seismic gravity retaining structures deals with both kinematic interaction and inertial interaction but almost seismic building code n...

Journal: :European journal of orthodontics 2016
Catherine Giannopoulou Alexander Dudic Nikolaos Pandis Stavros Kiliaridis

INTRODUCTION The aim of this study was to investigate the variation in the amount of the orthodontically induced tooth movement in humans and potential associations between the amount of tooth movement with age and location in the mandible or maxilla. SUBJECTS AND METHODS This study included 11 participants (7 females, 4 males) with an age range of 11.3-28.6 years. In a standardized experimen...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2009
Chad Morarend Fang Qian Steve D Marshall Karin A Southard Nicole M Grosland Teresa A Morgan Michelle McManus Thomas E Southard

INTRODUCTION Many case reports have documented the successful use of titanium miniscrews for orthodontic anchorage. However, the literature lacks a well-controlled study examining the effect of miniscrew diameter on anchorage force resistance. The purpose of this in-vitro study was to compare the force resistance of larger-diameter monocortical miniscrews to smaller-diameter monocortical minisc...

Journal: :The journal of contemporary dental practice 2013
G S Renuka Prasanna Kesava Reddy R K Naveen Kumar S Shivaprakash

AIM The purpose of the present in vivo study was to measure the efficacy of different gingival displacement materials in achieving gingival tissue displacement and to compare the efficacy of Expasyl displacement paste (Pierre Rolland, France) and gingival displacement cord for gingival displacement. MATERIALS AND METHODS Sixteen subjects were included in the study. Premolars were prepared to ...

Journal: :European journal of orthodontics 2006
S H Jónsdóttir E B W Giesen J C Maltha

The aim of this study was to describe the mechanical behaviour of the periodontal ligament (PDL) in response to loading with different forces for a period of 5 hours. Seven young adult male beagle dogs (age 1.0-1.5 years) were used. After extractions and placement of implants, custom-made appliances on both sides of the mandible were used to measure the displacement of the second premolars. Too...

Journal: :Measurement 2021

Several standards for vibration testing of rotating machinery define limits relative shaft displacement during rotation. With requirements displacement, are given combined electrical and mechanical runout, which is the eddy probe reading error caused by geometry measured shaft. Some allow compensation runout vectorially subtracting them from current values. This paper presents a measurement pro...

Journal: :Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia 2010
Takehito Mishima Kazuo Yamamoto Tsutomu Sugimoto Kenji Sakakibara Akifumi Uehara Shinpei Yoshii

Aortic regurgitation is occasionally caused by fibrous strands and more rarely by downward displacement of the aortic annulus. The present report describes an 18-year-old man with aortic regurgitation resulting from an anterior-posterior type of bicuspid aortic valve with fibrous strands and downward displacement of the anterior aortic annulus. A pair of fibrous strands at the anterior cusp of ...

2005
Daniele Perissin Alessandro Parizzi Claudio Prati Fabio Rocca

Many urban areas in China are affected by land subsidence. The Permanent Scatterers (PS) technique [1], [2] is a powerful tool for monitoring terrain motions by means of space-born radar data on a large number of coherent targets. Core idea of the PS technique is the exploitation of a high density of measure points (usually but not necessarily corresponding to man-made objects) in order to esti...

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