Results 1 to 10 of about 95,125 (344)

Study on smoke sealing effectiveness of the air curtain in exit bifurcated tunnel fires

Case Studies in Thermal Engineering
The feasibility of using a smoke prevention air curtain in the exit bifurcated tunnel was investigated through 1:10 scale model experiments. The results indicated that the jet velocity and heat release rate (HRR) significantly influenced the smoke ...
Xinling Lu, Miaocheng Weng, Fang Liu, Junjie Yu   +3 more
doaj   +4 more sources

Investigations of the leakage characteristic and the sealing effectiveness on turbine bite rim seals

Journal of Thermal Science and Technology, 2018
In order to meet the needs of designing for high performance secondary air system in the turbine, a new turbine bite engineering rim seal of type-A and the related test rig were designed and set up.
Weilin DONG, Suofang WANG, Pengfei LI
doaj   +3 more sources

Effect of Various Coolant Mass Flow Rates on Sealing Effectiveness of Turbine Blade Rim Seal at First Stage Gas Turbine Experimental Facility

Energies, 2020
The appropriate coolant mass flow of turbine blade rim seal has become an important issue as turbine blades are exposed to increasingly higher thermal load owing to increased turbine inlet temperature.
Seok Min Choi, Seungyeong Choi, Hyung Hee Cho   +2 more
doaj   +3 more sources

Structural parameters optimization for enhanced sealing performance of soluble ball seat sealing ring in shale gas volume fracturing process. [PDF]

PLoS ONE
In the volumetric fracturing process of tight oil and gas horizontal wells, the soluble ball seat emerges as a crucial tool for pressure sealing due to its rapid solubility, full-diameter production capacity, and straightforward construction process ...
Shuang Jing, Anle Mu, Zhen Chen, Qingjie Ran, Deyong Luo, Tao Xiong   +5 more
doaj   +2 more sources

Sealing effectiveness of a novel NHS-POx based patch: experiments in a dynamic ex vivo porcine lung. [PDF]

J Thorac Dis, 2023
Hermans BP, Li WWL, Roozen EA, van Dort DIM, Evers J, van der Heijden EHFM, van der Heide SM, van Goor H, Verhagen AFTM.   +8 more
europepmc   +3 more sources

Sealing effectiveness of fissure sealant bonded with universal adhesive systems on saliva-contaminated and noncontaminated enamel. [PDF]

J Clin Exp Dent, 2018
Memarpour M, Shafiei F, Zarean M, Razmjoei F.   +3 more
europepmc   +2 more sources

CLINICAL EFFECTIVENESS OF FISSURE SEALING METHOD WITH USING THE PHOTOACTIVATED DISINFECTION

Український стоматологічний альманах, 2018
. Fissure caries in permanent teeth remains an important issue in modern dentistry, occupies a leading place among carious lesions at other sites. At present, for the prevention of tooth decay on the chewing surfaces of teeth using a wide variety of ...
R.S. Nazaryan, K. Yu. Spiridonova
doaj   +1 more source

Aerodynamic and heat transfer performances of a highly loaded transonic turbine rotor with upstream generic rim seal cavity

Propulsion and Power Research, 2021
In turbine disk cavity, rim seals are fitted between the stator and its adjacent rotor disk. A coolant air injected through the turbine disk cavity to prevent the ingress of mainstream hot gases.
Zakaria Mansouri
doaj   +1 more source

Design, construction, and modeling of aircraft door sealing plate based on SMAs

International Journal of Smart and Nano Materials, 2022
In this work, a novel aircraft door sealing structure driven by shape memory alloys (SMAs) is proposed that offers much improved sealing capability than traditional sealing plates.
Chen Zhang, Renhao Liu, Chongcong Tao, Chao Zhang, Hongli Ji, Jinhao Qiu   +5 more
doaj   +1 more source

Supplementary Material for: Cost-effectiveness of pit and fissure sealing at schools for caries prevention in China: A Markov modeling analysis

, 2023
Lixia Zhou, Li Y, Liu B, Wang M.S., Cheng Sun, X. Zhang, Liu G, N. SIUZANNA   +7 more
  +8 more sources