Abstract A new investigated concept for passive load alleviation is to exploit the nonlinear behavior of wing design components trigger a deformation which reduce loads once critical level reached. The necessary torsional rotation supposed angle attack. For this target, wingbox sections are regarding their with finite element analysis. Parameter studies feature anisotropic carbon fiber reinforc...

Pitching mode is more crucial than heaving in assessing floating offshore wind turbine (FOWT) motion characteristics, especially the operation of SPAR substructure. The aim this paper to develop an experimental method for improving substructure minimize unnecessary pitch motion. Toward end, three vertical plate configurations based on novel are being developed, known as 3VP, 4VP, and 5VP models...

Generating realistic skin deformations arising from joint movement and muscle contraction is a requirement for producing realistic human character animation. For example, the human arm, hand, or foot change shape in significant ways during motion, ways which are difficult to model accurately with traditional character animation techniques. This thesis suggests a new way to build realistic anima...

BACKGROUND A permit to work (PTW) is a formal written system to control certain types of work which are identified as potentially hazardous. However, human error in PTW processes can lead to an accident. METHODS This cross-sectional, descriptive study was conducted to estimate the probability of human errors in PTW processes in a chemical plant in Iran. In the first stage, through interviewin...

A model insect wing is described in which spars of corrugated membrane which incorporate stiffening veins branch serially from a V-section leading edge spar. The mechanical behaviour of this model is analysed. The open, corrugated spars possess great resistance to bending, but are compliant in torsion. Torsion of the leading edge spar will result in torsion and relative movement of the rear spa...

Abstract. Spar-type platforms for floating offshore wind turbines are considered suitable commercial farm deployment. To reduce the hurdles of such systems becoming competitive, in situ aero-hydro-servo-elastic simulations applied to support conceptual design optimization by including transient and non-linear loads. For reasons flexibility, utilized framework problem modularly structured so tha...

Patterns of amplified DNA fragments flanked by (GGAC)n microsatellites, obtained by single primer amplification reaction (SPAR), from 198 Gymnotus specimens (Pisces: Gymnotiformes) sampled from 8 southeastern Brazilian river basins were analyzed. The species studied were Gymnotus carapo, G. pantherinus, G. inaequilabiatus, and G. sylvius. The indirectly obtained patterns reflected the distribut...

As offshore exploration and development of oil fields reach water depths of 1,000 to 3,000 m, novel methods of anchoring production platforms become attractive due to cost savings associated with installation. Surface production systems that are viable in these water depths include Tension Leg Platforms (TLP), spar platforms, and laterally moored ship-shaped and semisubmersible vessels. Possibl...