Results 71 to 80 of about 117,344 (304)

Canal surfaces in 4-dimensional Euclidean space

open access: yesAn International Journal of Optimization and Control: Theories & Applications (IJOCTA), 2016
In the present study, we consider canal surfaces imbedded in an Euclidean space of four dimensions. The curvature properties of these surface are investigated with respect to the variation of the normal vectors and curvature ellipse. We also give some special examples of canal surfaces in E^4.
Bulca, Betül   +3 more
openaire   +4 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Efeito do uso de diferentes soluções irrigadoras previamente ao curativo de demora com hidróxido de cálcio na resistência da dentina radicular [PDF]

open access: yes, 2012
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.O objetivo da presente pesquisa foi avaliar ex vivo os efeitos do uso das soluções de hipoclorito de sódio e de ácido etileno diamino tetracético (EDTA ...
Hillesheim, Leila Clarisse
core  

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang   +14 more
wiley   +1 more source

Micro-CT evaluation of apical enlargement of molar root canals using rotary or reciprocating heat-treated NiTi instruments

open access: yesJournal of Applied Oral Science
Objective The aim of this study was to evaluate the root canal preparation and apical enlargement of molar root canals with rotary or reciprocating heat-treated nickel-titanium (NiTi) instruments, by using micro-computed tomography (micro-CT ...
Jáder Camilo PINTO   +5 more
doaj   +1 more source

On canal surfaces in $E^3$

open access: yes, 2010
In this paper we deal with the geometric properties of canal surfaces in $Bbb{E}^ 3$. Further, the first and second fundamental form of canal surfaces are presented. By the use of the second fundamental form, the Gaussian and mean curvature of canal surfaces are obtained.
ARSLAN, KADRİ   +3 more
openaire   +3 more sources

Resistance of a compartmented surface-effect ship

open access: yes, 2010
A series of carefully controlled experiments on the resistance of a model of a compartmented surface-effect ship has been conducted in a towing tank. Configurations of the model included cases encompassing one subcushion and two subcushions, as well as ...
Day, Alexander   +3 more
core  

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Efficacy of different irrigation techniques on calcium hydroxide removal from the root canal [PDF]

open access: yesStomatološki glasnik Srbije, 2018
Introduction Calcium hydroxide (CH) is a medicament widely used in endodontic treatment due to its antibacterial, regenerative and biocompatible properties.
Opačić-Galić Vanja   +1 more
doaj  

Net Gains from Conjunctive Use of Surface and Ground Water [PDF]

open access: yes
Pakistan is fortunate enough because its soils, topography and climate are generally suitable for farming but its agriculture sector faces the problem of scarcity of the irrigation water.
Waqar A. Jehangir   +2 more
core  

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