This article introduces a new type of magnetic sealing mechanism that reduces the lubrication oil pollution and media gaseous leakage in general reciprocating machinery including air compressors and refrigerators. The feasible function and reliable performance of this new sealing mechanism are introduced and analyzed in this paper. The computer aided design, modeling and analysis are being used...

To solve the extracting problem caused by the sealing structure design of a new-type swing chamber artillery, the sealing system was analyzed and the sealing reliability standard was established. Based on the multi-disciplinary design optimization platform and the large-scale nonlinear FEA software ABAQUS, with the residual contact force as optimized objective and the standard as constraint, th...

To solve the problem of field application downhole hydraulic fracturing technology due to difficulty in sealing holes, this study analyzes influence special cement, expansion agents, stabilizers, and fiber material on basic properties, such as setting time, fluidity, compressive strength high-pressure materials through systematic tests based a summary conventional materials. It was determined t...

Various types of optical materials and devices used in special environments must satisfy durability properties. In order to improve the zinc sulfide multispectral (MS ZnS) substrates with transmission wavelengths from visible infrared, Ge-Sb-Se-based chalcogenide glass was as a sealing material bond MS ZnS substrates. Wetting tests were conducted analyze flowability function temperature, by con...

The success and efficiency of wall-climbing robots is not only a question of closed-loop control and electronics. Also materials have a large influence on the operability to make the systems light-weighted or more robust. This paper presents findings based on experiments to find an optimal material for inflatable adaptive sealings. Demands of such sliding sealings are robustness and good slidin...

Methods First, the lung is deflated and the pulmonary vessels to the involved segment are divided. The segmental bronchus is divided using a stapling device or ligation. Then, using a butterfly needle, oxygen (approximately 1 L/min.) is instilled into the targeted bronchus to inflate the involved segment, and the involved segment is severed and removed using electrocautery or a stapling device....

A quantum sealing protocol is a quantum cryptographic protocol that can detect unsealing of a message. It is known that quantum bit sealing is insecure. However, this does not imply that quantum string sealing is also insecure. So the possibility of quantum string sealing has been studied. In this paper, we propose a quantum sealing protocol and give an information theoretic analysis. We also s...