Results 1 to 10 of about 6,640,199 (335)

Does Immediate Dentine Sealing Improve Bonding Effectiveness of Glass Ceramic Restorations Compared to Delayed Dentine Sealing?

European Journal of Prosthodontics and Restorative Dentistry, 2021
A systematic review of the literature was conducted to determine whether immediate dentine sealing (IDS) or delayed dentine sealing (DDS) would lead to a more effective bond between dentine and indirect glass ceramic restorations.
J. Kolanko, S. Bonsor
semanticscholar   +1 more source

Versatility and clinical effectiveness of a synthetic sealing hemostatic patch as alternative to parenchyma suturing in laparoscopic partial nephrectomy

Surgical Endoscopy, 2021
Background Improvements in laparoscopic partial nephrectomy (LPN) in order to minimize perioperative warm ischemia time (WIT), complications, and consequently patient outcome are desirable.
E. Erne, S. Kruck, Tilman Todenhoefer, S. Aufderklamm, B. Amend, J. Bedke, A. Stenzl, S. Rausch   +7 more
semanticscholar   +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)

Corrosion 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, Aline de Fátima Santos Bugarin, Victor Hugo Ayusso, Maysa Terada, Isolda Costa   +4 more
doaj   +1 more source

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

Yantu 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

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

Energies, 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, Yan Li, Wenhong Cao, Yuebing Li, Zengliang Gao   +4 more
doaj   +1 more source

Performance Evaluation of Cable Shaft Fireproof Sealing System in High-Rise Buildings: A Comparative Test Method

Fire
The effectiveness of fireproof sealing systems in preventing the spread of fire in high-rise building cable shafts relies on the properties of various sealing materials and the construction process. Therefore, a comprehensive evaluation is necessary. The
Bizhen Zhang, Shengwen Shu, Zhicong Zheng, Bo Qu, Xin Li, Xingyao Xiang, Shuai Xia   +6 more
doaj   +1 more source

Impact of immediate versus delayed dentin sealing on adhesive luting effectiveness.

Dental Materials
OBJECTIVE To evaluate the effect of immediate versus delayed dentin sealing (IDS/DDS) on the micro-tensile bond strength (µTBS) of CAD/CAM composite adhesively luted onto dentin. METHODS Upon sandblasting, silanization and adhesive application, CAD/CAM
R. Q. Ramos, B. Mercelis, Mohammed H. Ahmed, Bernardo Camargo dos Santos, G. C. Lopes, B. Van Meerbeek, M. Peumans   +6 more
semanticscholar   +1 more source

Development and Application of a New Temporary Wellbore Sealing Tool

Shiyou jixie, 2023
With the development of offshore oil and gas fields, many oil and gas wells enter the later stages of production, inevitably requiring workover operations.Particularly during the refurbishment, replacement, and maintenance of aging Christmas trees ...
Li Yong, Dong Haikuan, Liu Guozhen, Zhang Xinping, Hua Zejun, Lu Yan, Guo Longlong   +6 more
doaj  

A Novel Method for Aging Life Evaluation of O-Rings Based on the Sealing Performance Degradation Model and the Artificial Neural Network Model

Aerospace
The effectiveness and stability of sealing structures and O-rings in engineering not only impact the performance and safety of engineering systems but also directly affect the operational lifespan and maintenance costs of equipment.
Xiaojia Wang, Yu Huang, Jianning Zhang, Zihui Wang, Weiping Hu, Chao Song   +5 more
doaj   +1 more source

Study on Sealing Mechanism of Three-Stage Sealing Under Transient High-Pressure Gas Rock Breaking

Applied Sciences
In transient high-pressure gas rock breaking, resilient sealing materials can reduce energy loss during rock breaking and ensure the effectiveness and safety of the operation.
Ming Liu, Hao Yang, Xiaofeng Dang, Zhuqin Yan, Rui Liu, Tao Liu   +5 more
doaj   +1 more source