Results 71 to 80 of about 15,481 (268)

Development and Validation of a Seismic Design Method for Anchored Retaining Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Retaining walls with multiple anchor levels are widely used as permanent excavation support systems for the construction of linear infrastructures. Yet, their seismic behaviour remains largely unexplored, and current design approaches rely on conventional procedures that do not adequately reflect the actual dynamic response of these systems ...
Luigi Callisto, Chiara Molinaro, Davide Noè Gorini   +2 more
wiley   +1 more source

Three‐Dimensional Analytical Model of a Podium Structure With Rocking Columns of Square Cross Section

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Allowing structural systems to uplift and rock during seismic excitation has emerged as an effective and inherently self‑centering form of seismic isolation. This paper develops a computationally efficient 3D analytical model suitable for the understanding of the behavior of rocking bridges.
Dimitra Adamopoulou, Michalis F. Vassiliou   +1 more
wiley   +1 more source

Comparison of Stress Distribution on a Straight and Angulated Abutment of Different Internal Hex Connections – Finite Element Analysis

Indian Journal of Dental Sciences
Context: Various internal connections of implant abutments show different stress distributions. To improve this, a newer Morse taper connection is introduced. This connection aims to harmonize stress distribution between the abutment and implant fixture,
Joel Koshy Joseph, D. Kalpana, Premraj Jadhav, Pradeep Taide, Varunraj Jadhav, Vidya Hittalamani, Christeena John   +6 more
doaj   +1 more source

Effects of abutment-implant combinations with different elastic moduli on osteogenic performance

工程科学学报, 2019
Many factors affect the success of dental implant surgery, such as surgical trauma, excessive chewing pressure, material performance mismatch, and improper abutment-implant connection.
LIN Yi-ling, XING Hui, DONG An-ping, SHE Huan, DU Da-fan, XU Hao, WANG Dong-hong, HUANG Haijun, SHU Da, ZHU Guo-liang, SUN Bao-de   +10 more
doaj   +1 more source

Numerical Simulation Study on Optimization of Horizontal Sublevel Top‐Coal Caving Mining Technique for Steeply Inclined Extra‐Thick Coal Seam

Energy Science &Engineering, EarlyView.
As the sublevel height increases, the top‐coal recovery amount gradually increases, but both the top‐coal recovery rate and the thickened top‐coal recovery rate show a downward trend, and the decline in the top‐coal recovery rate is gradually increasing. The comparison indicates that the optimal sublevel height is 20 m.
Hongsheng Tu, Dingyi Hao, Wenhong Xiao, Fuhao Jiang, Shikun Xu   +4 more
wiley   +1 more source

The UCLA abutment: A four-year review

The Journal of Prosthetic Dentistry, 1992
The UCLA abutment has been used over the past 4 years in the restoration of osseointegrated implants. The design of the abutment allows fabrication of the restoration directly to the implant fixture, bypassing the transmucosal abutment cylinder. This technique is valuable in overcoming problems of limited interocclusal distance, interproximal distance,
S G, Lewis, D, Llamas, S, Avera
openaire   +3 more sources

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Perbandingan Gerusan Lokal yang Terjadi di Sekitar Abutment Dinding Vertikal Tanpa Sayap dan dengan Sayap pada Saluran Lurus, Tikungan 90°, dan 180° (Kajian Laboratorium)

Jurnal Teknik Sipil, 2011
Fenomena kerusakan jembatan akibat gerusan pada pondasi pier atau abutment sulit diamati secara langsung. Salah satu metode untuk menyederhanakan adalah dengan pemodelan fisik di laboratorium. Tujuan penulisan jurnal ini adalah membandingkan gerusan yang
Agung Wiyono , Joko Nugroho , Widyaningtias , Eka Risma Zaidun   +3 more
doaj   +1 more source

Tectono‐Sedimentary Evolution of the Neogene İnegöl Basin (NW Anatolia): Constraints on Transtensional Basin Development at the Junction of the Western Anatolian Extensional Province and the North Anatolian Fault Zone

Geological Journal, EarlyView.
The study outlines the tectono‐sedimentary evolution of the İnegöl Basin in north‐western Anatolia. Basin formation was controlled by interacting extensional and strike‐slip fault systems linked to uplift of the Uludağ Massif. Terrestrial sedimentation from the Miocene to Pleistocene is reconstructed using abundant fossil mammal assemblages that ...
M. Cihat Alçiçek, Volkan Karabacak, Serdar Mayda   +2 more
wiley   +1 more source

Laparoscopic Resection of Caudate Lobe Liver Tumors in Clinical Practice

iNew Medicine, EarlyView.
ABSTRACT The caudate lobe (Couinaud segment I), owing to its deep location in the posterosuperior liver, intimate encirclement by the inferior vena cava (IVC), and close adjacency to the hepatic hilum and major hepatic veins, presents a formidable anatomical challenge for resection.
Dingde Ye, Wenjie Zhang, Qiaoyu Liu, Beicheng Sun, Qingxiang Xu   +4 more
wiley   +1 more source