The "RAD" (Radiation Assay Device) SEM experiment consists of two parts: a set of passive radiation dosimeters and several rolls of high speed color photographic film. The experimental package was flown on two separate high inclination shuttle missions, STS-85 (57) and STS-91 (51). The goal was to accurately measure the amount and type of radiation exposure to a typical payload in low earth orb...

NUR 959 Trefw.: optische telecommunicatie / nietlineaire optica / optische signaalverwerking. Subject headings: optical fibre communication / nonlinear optics / optical information processing. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the prior written consent of the author. Summary Optical networks are evolvi...

In this paper, we present a novel reversible watermarking scheme for image authentication for JPEG/JPEG−2000 coded images. Since the watermarking scheme is reversible, the exact original image can be recovered from the watermarked image. The watermarking scheme makes use of finite state machine principles. The proposed scheme is asymmetric as the watermark extraction key is different than its e...

This paper investigates the problem of controlling a team of Quadrotors that cooperatively transport a common payload. The main contribution of this study is to propose a cooperative control algorithm based on a decentralized algorithm. This strategy is comprised of two main steps: the first one is calculating the basic control vectors for each Quadrotor using Moore–Penrose theory aiming at coo...

The high-payload transporter is a key part of the multipurpose deployer, which important for realizing remote handling tokamaks. This paper presents an analysis joint between and design test platform. kinematic, structural, load characteristics main joints heavy-duty manipulator were analyzed according to peculiarity high precision, large length, heavy transporter. Joint No. 4 (J4) was determin...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract This research paper addresses the design problem of heavy payload tethered hexarotor for agricultural applications where payload requirements are high, low altitude long time hovering is expected. Tethered hexarotors are unmanned aerial vehicles wi...

Existing engineering materials allow the constuction of towers to heights of many kilometers. Orbital launch from a high altitude has significant advantages over sea-level launch due to the reduced atmospheric pressure, resulting in lower atmospheric drag on the vehicle and allowing higher rocket engine performance. High-altitude launch sites are particularly advantageous for single-stage to or...

Traffic classification is a preliminary and essential step for achieving stable network service provision and efficient network resource management. While a number of classification methods have been introduced in the literature, the payload signature-based classification method shows the highest performance in terms of accuracy, completeness, and practicality. However, the payload signature-ba...