Results 1 to 10 of about 13,261 (169)

Bearing capacity of piles in a reinforced by pressure cementation soil massif [PDF]

open access: yesE3S Web of Conferences, 2021
Studies of the piles bearing capacity after strengthening soil by cement mortar pressure injection were carried out to determine pile foundations bearing capacity increasing patterns in a result of soils cementation.
Shakirov Ildus
doaj   +1 more source

Analysis of methods for calculating spur gear for deep contact strength

open access: yesАрхитектура, строительство, транспорт, 2021
Spur gear is an integral part of transport and technological machines structure. To increase the load ability of the spur gear, chemical heat treatment of the working cogs surfaces is used.
S. Yu. Lebedev
doaj   +1 more source

Clinical effect of a guided resin cementation technique in the treatment of vertical food impaction

open access: yes口腔疾病防治, 2021
Objective To explore the clinical effect of a guided resin cementation technique on vertical food impaction symptoms and to provide a new method for the treatment of vertical food impaction.
HUO Jingyi   +5 more
doaj   +1 more source

Research progress and prospect of loess collapsible mechanism in micro-level

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Loess is a typical soil with collapsibility featured with strength reduction under wetting and disasters induced by disturbance. Recognizing the mechanism of loess collapse is urgent demand for solving geological disasters and engineering problems.
Wen FAN   +4 more
doaj   +1 more source

Diagenetic facies of carbonate rocks in Yijianfang Formation, Shunbei area, Tarim Basin

open access: yesShiyou shiyan dizhi, 2020
The diagenetic facies of the Ordovician Yijianfang Formation in the Shunbei area of the Tarim Basin was analyzed using drilling core description, thin section observation, as well as logging trace and seismic data analysis.
Chuanjie CHENG   +4 more
doaj   +1 more source

Results of the Archaeometallographic Study of the Collection of Forged Pieces from the Shcherbet Settlement on the Lower Kama

open access: yesПоволжская археология, 2022
The purpose of the paper is to present the features of the development of ironworking of the Volga-Kama periphery of the Eastern European part of the Barbarikum on the basis of data obtained during the metallographic study of forged pieces related to the
Kondrashin Vitaly V.
doaj   +1 more source

Separation of Copper from Acidic Etching Solutions

open access: yesGeoScience Engineering, 2022
This study deals with the issue of copper separation from acidic etching solutions formed during the process of production of printed circuit boards (PCBs) for the electrical and electronic industries. The article describes the selected methods of copper
Martina UJHÁZY   +3 more
doaj   +1 more source

The cement-bone bond is weaker than cement-cement bond in cement-in-cement revision arthroplasty. A comparative biomechanical study

open access: yesPLOS ONE, 2021
This study compares the strength of the native bone-cement bond and the old-new cement bond under cyclic loading, using third generation cementing technique, rasping and contamination of the surface of the old cement with biological tissue. The possible advantages of additional drilling of the cement surface is also taken into account.
Marcin Ceynowa   +6 more
openaire   +4 more sources

Microscopic Inspection of the Adhesive Interface of Composite Onlays after Cementation on Low Loading: An In Vitro Study

open access: yesJournal of Functional Biomaterials, 2023
Purpose: This study aimed to assess the layer thickness and microstructure of traditional resin-matrix cements and flowable resin-matrix composites at dentin and enamel to composite onlay interfaces after cementation on low loading magnitude.
Tiago Magalhães   +7 more
doaj   +1 more source

Qualitative mineralogical analysis of Barracuda exploration well in the offshore Mannar Basin (the Indian Ocean) using FTIR and XRD techniques

open access: yesRuhuna Journal of Science, 2022
The Mannar Basin plays a vital role in petroleum exploration in Sri Lanka, and its Barracuda exploration well was drilled up to 4206 m in depth. The objective of the current study is to identify mineralogy using Fourier-transform infrared (FTIR) and X ...
B. M. Gunathilake   +3 more
doaj   +1 more source

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