Results 241 to 250 of about 22,633 (291)

Geometrical effects on the degree of bending (DoB) of multi-planar tubular KK-joints in jacket substructure of offshore wind turbines

Applied Ocean Research, 2021
The degree of bending (DoB) characterizes the member through-the-thickness stress distribution which has a profound effect on the fatigue behavior of tubular joints commonly found in steel offshore structures and the determination of DoB values is ...
Hamid Ahmadi
exaly   +2 more sources

Probabilistic analysis of the DoB in axially-loaded tubular KT-joints of offshore structures

Applied Ocean Research, 2019
The degree of bending (DoB) characterizing the through-the-thickness stress distribution has a profound effect on the fatigue behavior of tubular joints commonly found in steel offshore structures and the determination of DoB values is essential for ...
Hamid Ahmadi
exaly   +2 more sources

Effects of geometrical parameters on the degree of bending (DoB) in multi-planar tubular XT-joints of offshore structures subjected to axial loading

Applied Ocean Research, 2020
The degree of bending (DoB) characterizes the member through-the-thickness stress distribution which has a profound effect on the fatigue behavior of tubular joints commonly found in steel offshore structures and the determination of DoB values is ...
Hamid Ahmadi
exaly   +2 more sources

Degree of bending (DoB) in offshore tubular KT-joints under the axial, in-plane bending (IPB), and out-of-plane bending (OPB) loads

Applied Ocean Research, 2020
Through-the-thickness stress distribution characterized by the degree of bending (DoB) has a major effect on the fatigue behavior of tubular joints commonly found in steel offshore structures.
Hamid Ahmadi, Esmaeil Zavvar
exaly   +2 more sources

Degree of bending (DoB) in tubular K-joints of offshore structures subjected to in-plane bending (IPB) loads: Study of geometrical effects and parametric formulation

Ocean Engineering, 2015
The fatigue life of tubular joints in offshore structures is not only dependent on the value of hot-spot stress (HSS), but is also significantly influenced by the through-the-thickness stress distribution characterized by the degree of bending (DoB). The
Hamid Ahmadi, Mohammad Ali Lotfollahi-Yaghin   +1 more
exaly   +2 more sources

Parametric study of geometrical effects on the degree of bending (DoB) in offshore tubular K-joints under out-of-plane bending loads

Applied Ocean Research, 2016
In this paper, results of comprehensive finite element (FE) analyses carried out on 81 generated models of tubular K-joints are presented. Results of FE models were verified against experimental data and parametric equations.
Hamid Ahmadi
exaly   +2 more sources

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Adaptive DOB control for AUVs

IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004, 2004
This paper presents the theory and experimental work of the adaptive plus disturbance observer (DOB) controller on underwater robot. This control scheme consists of DOB as an inner-loop compensator and a non-regressor based adaptive controller as an outer-loop controller.
Side Zhao, Junku Yuh, Song K. Choi
openaire   +1 more source

Vaskularna dob pušača

Acta medica Croatica, 2009
Pušenje je najopasnija socijalna navika koja uzrokuje direktno oštećenje arterijske stijenke. Cilj rada bio je procijeniti razliku u vaskularnoj dobi pušača i nepušača u zajedničkoj karotidnoj arteriji.
Jurašić, Miljenka, Morović, Sandra, Šarac, R, Vuković, Vlasta, Lovrenčić-Huzjan, Arijana, Seferović, Majda, Ivanković, M, Demarin, Vida   +7 more
  +4 more sources

Adaptive dob control of underwater robots

Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453), 2004
This paper presents an adaptive DOB (disturbance observer) controller for underwater robots, which consists of DOB as an inner-loop controller and a non-regressor based adaptive controller as an outer-loop controller. This control scheme does not require any parametric information, and is robust with respect to external disturbance as well as the ...
Side Zhao, Junku Yuh
openaire   +1 more source

Assessment of the clinical significance of anti‐Dob

Transfusion, 1998
BACKGROUND: Anti‐Dob is an uncommon antibody, and there are few data regarding its clinical importance. In the present case, the patient's transfusion management was based on both in vivo and in vitro assay results. CASE REPORT: A delayed hemolytic transfusion reaction was suspected in a 64‐year‐old white woman awaiting cardiac surgery when the ...
R S, Shirey, J S, Boyd, K E, King, P P, Caturegli, W M, Montgomery, P M, Ness   +5 more
openaire   +2 more sources