offshore pipelines are an effective tool for transportation of oil and gas which are usually assembled by the use of girth welds. since flaws may naturally exist at such welds, fracture assessment of girth welded offshore pipelines is substantial. current fracture assessment procedures like bs 7910 consider identical material properties for the weld and the base metals. however the strength dif...

Economical design with sufficient fracture resistance is of high importance in any offshore pipeline projects. Using an Engineering Critical Assessment (ECA), alternate acceptance criteria for pipeline girth weld inspection can significantly reduce the cost of constructing of offshore oil and gas pipeline by minimizing unnecessary repairs. Offshore pipelines consist of short pipeline segments c...

Approved for public release; distribution unlimited.ABSTRACT The External COMSEC Adaptor (ECA) is a device responsible for providing cryptographic protection of information based on rules that (possibly coarsely) define the sensitivity of that information. The ECA is trusted to satisfy a set of critical requirements that support data confidentiality in the network in which it is embedded. Ensur...

OBJECTIVE To compare performance of single-injection blood pool agent (gadofosveset trisodium, BPA) against dual-injection extracellular contrast (gadopentetate dimeglumine, ECA) for MRA/MRV in assessment of suspected vascular TOS. MATERIALS AND METHODS Thirty-one patients referred for vascular TOS evaluation were assessed with BPA (n=18) or ECA (n=13) MRA/MRV in arm abduction and adduction. ...

The most common method for in situ assessment of soil salinity, namely the electrical conductivity (EC) of the soil solution (ECw), is to measure the apparent electrical conductivity (ECa) and volumetric water content (θ) of the soil and apply measured or predicted ECa(ECw, θ) calibration curves. The water content and electrical conductivity of a soil solution are indeed the major factors affec...

The Enterprise Coherence-governance Assessment (ECA) instrument is a part of the GEA (General Enterprise Architecting) method for enterprise architecture. Based on experiences with this assessment instrument in a range of real world projects, the ECA has been improved, leading to the extended Enterprise Coherence-governance Assessment (eECA). So far, the eECA been applied in 54 organizations wi...

Offshore pipelines are usually constructed by the use of girth welds, while welds may naturally contain flaws. Currently, fracture assessment procedures such as BS 7910 are based on the stress-based methods and their responses for situations with large plastic strain is suspicious. DNV-OS-F101 with limited modifications proposes a strain-based procedure for such plastic loads. In this paper 3D ...

In this paper, the authors discuss an instrument for the assessment of enterprise coherence (Enterprise Coherence Assessment, ECA). The term ‘coherence’ is used rather than the more common term ‘alignment’, since the latter is generally associated with bringing two concepts in line (typically ‘Business’ and ‘IT’). The word coherence, however, stresses the need to go beyond this. Coherence invol...

In the near future, humanoid robots will act as the partners of human beings in daily life. Among numerous human-like competencies, motion of humanoid robots is critical for providing humans with richer interactions with such robots. Motion plays an essential role in complementing spoken communication. Moreover, the motions of humanoid robots generate nonverbal communication in various contexts...

Most of the subsea pipelines in Indonesia are installed using S-Lay method with pipelay barges equipped mooring spreads, tensioners, and stinger. During pipeline installation, static loads occur due to configuration from firing line barge up seabed. The pipe will experience axial tension bending moment two critical areas: overbend sagbend. In addition, fatigue during installation environmental ...