Results 81 to 90 of about 20,641 (257)
Can Europe Sustain a New Rules‐Based Geopolitical Order?
JCMS: Journal of Common Market Studies, EarlyView.Abstract The European Union (EU) faces a unique opportunity to lead a new rules‐based international order in an era of American retreat and heightened global uncertainty. Yet its path to leadership is rife with obstacles. In this article, we draw on international relations literatures on international political economy and comparative politics ...
Kathleen R. McNamara, Federico Steinberg
wiley +1 more source
Motion stabilization in the presence of friction and backlash: a hybrid system approach [PDF]
, 2008 In this paper a hybrid system approach is considered to deal with backlash and friction induced nonlinearities in mechanical control systems. To describe the low velocity frictional behaviour a linearized friction model is proposed. The novelty of this
Lantos, Béla, Márton, Lőrinc
core
Periodontitis and Periodontal Conditions in Systemically Healthy Children and Adolescents
Journal of Clinical Periodontology, EarlyView.ABSTRACT Objective To answer the PICoS question ‘in systemically healthy children and adolescents (Population), what are the main features of periodontitis, necrotising periodontal diseases (NPD) and other periodontal conditions (periodontal abscesses, endo‐periodontal lesions, traumatic occlusal forces, prosthesis‐ and tooth‐related factors ...
Inbar Eshkol‐Yogev +5 more
wiley +1 more source
Shock and Vibration, 2017 A spiral bevel gear system supported on thrust bearings considering the coupled bending-torsional nonlinear vibration is proposed and an eight degrees of freedom (8DOF) lumped parameter dynamic model of the spiral bevel gear system combined with time ...
Jinli Xu, Fancong Zeng, Xingyi Su
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Intensive multigenerational size‐selective mortality has been found to alter collective properties like shoaling via evolutionary adaptations of individual‐level behavioural traits. For example, experimental populations of zebrafish (Danio rerio) experiencing intensive large size‐selective mortality over multiple generations developed less ...
Tamal Roy +2 more
wiley +1 more source
Jixie chuandong, 2009 A dynamic model of a gear rotor with transverse crack,gear backlash and nonlinear oil-film force of journal bearing is built and dimensionless equations of the system are derived.The system’s nonlinear dynamics characteristic are studied using the ...
李同杰, 王娟, 杨金龙, 孙启国
doaj
Design of Gear Drives With High Gear Ratio [PDF]
A three part paper to describe the results of several gear drive types with a high gear ratio is presented. A single stage planetary gear train with double helical gears is described with methods to reduce transmission errors and improve load ...
Fuentes, Alfonso +3 more
core +1 more source
Focus drive mechanism for the IUE scientific instrument [PDF]
, 1977 A compact, lightweight mechanism was developed for in-orbit adjustment of the position of the secondary mirror (focusing) of the International Ultraviolet Explored telescope. This device is a linear drive with small (.0004 in.) and highly repeatable step
Dennis, T. B., Jr., Devine, E. J.
core +1 more source
Stigma Management within and between Levels
Journal of Management Studies, EarlyView.Abstract We respond to recent calls to connect our understanding of stigma across and between levels of analysis by investigating how stigma management strategies to the same stigma vary and relate in nested industry, organizational, and individual actors.
Rebecca Mitchell +3 more
wiley +1 more source
The linear boom actuator designed for the Galileo spacecraft [PDF]
, 1983 Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core +1 more source