Results 31 to 40 of about 4,946 (135)
Pullout strengths of orthodontic palatal mini-implants tested in vitro
Background/purpose: New modified mini-implants are used in orthodontic practice to reinforce palatal anchorage. The aim of this study was to evaluate the anchorage strengths of palatal mini-implants in terms of their vertical and horizontal pullout ...
Ju-Hui Wu +6 more
doaj +1 more source
Pedicle screw loosening resulting from insufficient bone-screw interfacial holding power is not uncommon. The screw shape and thread profile are considered important factors of the screw fixation strength. This work investigated the difference in pullout
Mu-Yi Liu +5 more
doaj +1 more source
Understanding mechanical interactions at the root-soil interface is essential to predict the erosion of vegetated slopes. Recently, the shear strength of vegetatedil under changing hydraulic conditions has been measured and modeled; however, root-soil ...
Haruka Tomobe +2 more
doaj +1 more source
Experimental and FDM Study on Geogrid-Soil Interaction by Reformed Direct Shear Test Apparatus [PDF]
This paper presents the effect of geogrid tensile strength by computing the pullout resistance and the geogrid-soil interaction mechanism. In order to inquire this interface, a series of pullout tests have been conducted by a large scale reformed direct ...
Ali Namaei +2 more
doaj +1 more source
Experimental Investigation into Pull-Out Strength of Foamed Concrete Using Different Types of Screw
This study focuses on the results of the comprehensive strength test to quantify the mechanical properties of the screw’s pullout strength on foamed concrete.
Othuman Mydin M.A. +4 more
doaj +1 more source
In order to investigate the pullout characteristics of a toothed geogrid, a commercialized warp-knitted geogrid was combined with rigid angle aluminum to form a qualified toothed geogrid and used to perform pullout model tests in which four different ...
Fu Yawei, Fang Wei
doaj +1 more source
Biomechanical Comparison of Salvage Pedicle Screw Augmentations Using Different Biomaterials
Allograft bone particles, hydroxyapatite/β-hydroxyapatite-tricalcium phosphate (HA/β-TCP), calcium sulfate (CS), and polymethylmethacrylate (PMMA) bone cement are biomaterials clinically used to fill defective pedicles for pedicle screw augmentation. Few
Yun-Da Li +6 more
doaj +1 more source
Strength Performance of the Connection between Brick and SPF Lumber
There are many ways to strengthen an unreinforced brick masonry wall. One of the strengthening methods applies timber, which is a lightweight and easy installation. The connection between the timber and the brick masonry wall plays an important role.
Ariunaa Ganbaatar +3 more
doaj +1 more source
Determination of Pullout Strength of Geogrid in Sandy Soil
Geogrid reinforcement of soil has been successfully used for many years in a wide variety of applications. This paper presents data obtained from a series of laboratory tests performed on the geogrid. The tests were conducted to determine the mechanical property including the tensile strength of the geogrid and its corresponding pullout test.
Tushita Naidu K +3 more
openaire +2 more sources
BackgroundPedicle screw loosening (PSL) is a frequent complication in osteoporotic patients undergoing spinal fixation, yet effective risk assessment methods are limited.
Chenyu Jiang +8 more
doaj +1 more source

