نتایج جستجو برای: obstacle installation angle

تعداد نتایج: 168134  

ژورنال: مهندسی دریا 2016

Launching method is commonly applied for installation of heavy template (jacket) platforms. One of the important phases in design and construction of offshore platforms is launching condition. This will insure the safty of the procedure and will optimize the weight of the related members of the jacket. In this article, effective factors and amount of forces that applied on steel jacket during l...

2007
Thomas Dreibholz

3 Installation 3 3.1 Installation of the SCTP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3.1.1 Installation of Kernel SCTP for Linux . . . . . . . . . . . . . . . . . . . . . 3 3.1.2 Installation of Userland SCTP SCTPLIB/SOCKETAPI . . . . . . . . . . . . . 4 3.2 Installation of the RSPLIB Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2.1 Preparation W...

1998
John A. Hancock

One of the major challenges in designing intelligent vehicles capable of autonomous travel on highways is reliable obstacle detection. Highways present an unknown and dynamic environment with real-time constraints. In addition, the high speeds of travel force a system to detect objects at long ranges. Because of its necessity for mobile robot platforms and intelligent vehicles, there has been a...

Journal: :Optics express 2008
Kaveh Sahba Kamal E Alameh Clifton L Smith

Static laser scanning over a wide angle is demonstrated by ranging to 20 laser beams generated by a novel cylindrical quasi-cavity waveguide, using laser triangulation. Baseline distances and outgoing angles unique to each laser beam are calculated by modelling the triangulation arrangement using a system of linear equations and plotting principal rays. The quasi-cavity waveguide, imaging lens ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده ریاضی 1393

در این پایان نامه، با فرض اینکه ‎ v‎ یک *c - مدول هیلبرت تولید شده ی شمارا روی یک ‎$ c^{ast} $,‎ـ جبر ‎$ a $‎ است، ثابت خواهیم کرد که دنباله ی ‎$ lbrace f_{i}:iin i brace subseteq v $‎ یک قاب استاندارد برای ‎$ v $‎ است اگر و تنها اگر سری ‎$ sum_{iin i} langle x,f_{i} angle langle f_{i},x angle $‎ برای هر ‎$ xin v $‎ همگرا (در نرم) باشد و ثابت های ‎$d>0$‎ و ‎$c $‎ موجود ب...

2008
Claudia Pérez-D'Arpino Wilfredis Medina Meléndez Leonardo Fermín-Leon José Guzmán Gerardo Fernández-López Juan C. Grieco

In this work, a strategy for the generation of the angle reference for a Velocity Field Controller is presented. For an arbitrary trajectory given in its parametric form, it is possible to create a desired velocity field, that could be modified if obstacles were detected by an artificial vision system. Velocity fields are composed by vectors that can be expressed in polar form, i.e. Vx = |−→V |...

Journal: :Ain Shams Engineering Journal 2022

This paper proposes an efficient path planning technique for the autonomous collision-free navigation of wheeled mobile robots with simple hardware based on adaptive neuro-fuzzy inference system (ANFIS). The distance between robot and obstacles is measured using three ultrasonic sensors that are installed left, front, right robot. These distances from form inputs to ANFIS-utility function block...

ژورنال: تحقیقات موتور 2018
Fajri, H. R. , Hajiali Mohammadi, A., Mirsalim, S. M. , Nazari Chekoveri, M.,

The development of spray is one of the important factors effecting the combustion of PFI engines. This research was carried out in order to investigate some of the spray characteristics from PFI injector. In this study, the injector flux was investigated by a mass method and equations for it were presented. The results showed that in the pressure interval (2 to 6 bar), the relation of flux with...

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