Results 31 to 40 of about 95,125 (344)

Enamel-sealing liquid employment as preventive measures and as medical treatment of caries and dental hyperesthesia [PDF]

open access: yesСаратовский научно-медицинский журнал, 2011
The purpose of the research -to determine the effectiveness of enamel-sealing liquid employment as preventive measures and as medical treatment of caries and dental hyperesthesia.
Viryasova N.A.   +4 more
doaj  

Influence of high pressure pulsating excitation on pipe joint sealing based on multiscale contact analyses

open access: yesAIP Advances, 2022
Most of the leakage faults in hydraulic pipeline systems occur in the pipe joint. The research on the high-pressure sealing and reliability of the pipe joint is very important in the application of civil aircraft parts.
Jie Tang   +3 more
doaj   +1 more source

Heat and moisture insulation by means of air curtains: application to refrigerated chambers [PDF]

open access: yes, 2016
The present study is devoted to the determination of the efficiency of air curtain units (ACUs) applied to heat and moisture insulation of refrigerated chambers.
Giráldez García, Héctor   +3 more
core   +2 more sources

The d(10) route to dye-sensitized solar cells: step-wise assembly of zinc(II) photosensitizers on TiO2 surfaces [PDF]

open access: yes, 2012
Dye-sensitized solar cells have been assembled using a sequential approach: a TiO2 surface was functionalized with an anchoring ligand, followed by metallation with Zn(OAc)(2) or ZnCl2, and subsequent capping with a chromophore functionalized 2,2`:6`,2 ``
Bozic-Weber, Biljana   +5 more
core   +1 more source

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

open access: yesCorrosion and Materials Degradation, 2023
The AA 2198-T851 is a third-generation Al-Li alloy developed for use in the aircraft industry. Al-Li alloys are susceptible to localized corrosion due to their complex microstructure resulting from the used thermomechanical treatment. In order to prevent
Fernanda Martins Queiroz   +4 more
doaj   +1 more source

In vitro evaluation of carrier based obturation technique: a CBCT study [PDF]

open access: yes, 2016
AIM: The goal of the study was to compare the ability of two different carrier based obturation (CBO) techniques to reach working length and fill in three-dimensions root canal systems, by using CBCT. MATERIALS AND METHODS: Twenty-six extracted molars
Al Sudani, Dina   +7 more
core   +1 more source

Performance evaluation of shield tail brushes based on compression and grease escape tests

open access: yesYantu gongcheng xuebao, 2023
The failures of shield tail sealing have occurred from time to time, which may result in water and sand-gushing accidents in severe cases. This phenomenon has attracted great attention from the engineering and academic circles.
ZHU Weibin 1, LIU Chang 2, ZHONG Xiaochun 2, YOU Zhi 2, ZHU Nengwen 3
doaj   +1 more source

A pilot study to assess the feasibility and impact of a brief motivational intervention on problem drug and alcohol use in adult mental health inpatient units : study protocol for a randomized controlled trial [PDF]

open access: yes, 2014
Background: Substance misuse in those with severe mental health problems is common and associated with poor engagement in treatment and treatment outcomes.
Birchwood, M. J.   +9 more
core   +4 more sources

Failure Analysis of Novel BOSS Structures for Type IV Hydrogen Storage Vessels

open access: yesEnergies, 2023
This study focuses on the critical connection area between type IV hydrogen storage vessels and external valves, which is commonly referred to as the BOSS structure. The novel BOSS structures were proposed to further ensure the safety of pressure vessels.
Jiqi Zhu   +4 more
doaj   +1 more source

Fluid pressure balanced seal [PDF]

open access: yes, 1966
A seal which increases in effectiveness with increasing pressure is presented. The seal's functional capability throughout both static and dynamic operation makes it particularly useful for sealing ball valve ports. Other features of the seal include the
Marsh, H. W.
core   +1 more source

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