Submarine escape training for submarine personnel has been conducted by the U. S. Navy since 1930. By 1957, more than 250,000 ascents had been recorded. Most casualties due to this traininginvolved extra-alveolar air and/or embolism, and those few casualties which have occurred had usually been recorded and reported. In view of this, several questions were asked, among them one concerning the i...

Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process harsh operating environment, submarine subject fatigue cracks under long-term cyclic loading. A comprehensive high-precision characterization strategy for can effectively prevent potential safety hazards have significant economic social repercussions. As matter fact, pipe...

The arrangement design of a submarine depends on the past design data and experts’ experiences. Delay in design can occur due to data missing or the absence of experts. In addition, various compartments and equipment are placed on the limited space called pressure hull in the submarine, so that the relation between the compartments and equipment should be considered carefully when designing the...

The paper discusses architectural options for providing Dominant Battlespace Awareness (DBA) for Archipelagic Anti-Submarine Warfare (AASW) in the Baltic Sea, against experience from submarine intelligence data analysis and fusion research during the recent historical episode which involved recurrent submarine intrusions into Swedish

Oil and gas exploration is a sector which drives the global economy currently contributes significantly to economic development. The safety of subsea pipelines deeply affected by factors such as pipeline buckling, corrosion leakage. Once seriously leaking or damaged, it will cause lot waste resources at light level, explosions in severe cases, resulting heavy casualties huge losses, same time, ...

The fatigue performance of welded joints submarine pipelines is directly related to the safety and economic benefits structures. Considering limitations calculation, anti-fatigue design small-scale test in evaluation analysis pipeline life, this paper demonstrated feasibility, scientificity advancement full-scale technology engineering applications. Consequently, a system its applied for ZY-PFS...

Starting in 2009, MTU began combining the properties of its existing successful submarine solutions for all customers’ submarine designs with new market requests from submarine building shipyards. The resulting product specification was then augmented with the modern submarine requirements (partly described on the following pages). In 2011, the detailed concept study for these functional and pe...

During the reeling process of reel-lay method, pipe will be subjected to combined loading tension and bending. Excessive ovalization affect structural performance even lead instability pipe. In this paper, a numerical simulation model pipe-reeling is established by finite element tools. The Ramberg–Osgood material used study bending moment cross-section during based on Von Mises plasticity nonl...

Glasses from Mauna Loa pillow basalts, recent subaerial vents, and inclusions in olivine were analyzed for S, Cl, F, and major elements by electron microprobe. Select submarine glasses were also analyzed for H2O and CO2 by infrared spectroscopy. The compositional variation of these tholeiitic glasses is dominantly controlled by crystal fractionation and they indicate quenching temperatures of 1...

OBJECTIVE We aimed to estimate the prevalence of multimorbidity (≥2 chronic health problems) among Korean submariners and to evaluate the association between submarine service and multimorbidity and disease burden. STUDY DESIGN AND SETTING This cross-sectional study included 590 naval personnel who visited a Korean primary care clinic during 2014-2015. Data regarding general characteristics a...