Radar High Resolution Range & Micro-Doppler Analysis of Human Motions

In radar imaging it is well known that relative motion or deformation of parts of illuminated objects induce additional features in the Doppler frequency spectra. These features are called micro-Doppler effect and appear as sidebands around the central Doppler frequency. They can provide valuable information about the structure of the moving parts and may be used for identification purposes [1]. Previous papers have mostly focused on ID micro-Doppler analysis [2-4]. In this paper, we propose to emphasize the analysis of such "non stationary targets" using a 2D imaging space, using both the micro-Doppler and a high range resolution analysis. As in 2D-ISAR imaging, range separation enables us to better discriminate the various effects caused by the time varying reflectors. We will focus our study on human motion. We will see how micro-Doppler signature can be used to extract information on pedestrians gait. We will show examples on simulated and experimental data

Knowledge and degree of training of Primary Education teachers in relation to ICT taught to disabled students

The integration of Information and Communication Technologies (ICT) into the inclusive classroom requires competent teaching staff from both the technological and pedagogical points of view. Within this context, and with the aim of looking at one of these theoretical premises, this study aimed to identify the degree of training and technological knowledge of primary school teachers in Spain with respect to the use of ICT with individuals with disabilities (functional diversity). A descriptive ex post-facto research method was used, where the sample comprised 777 teachers. An ad-hoc questionnaire was used as the data-collection instrument. The results revealed the low skill levels of the teachers with respect to the use of ICT with students with disabilities, where the level of training of the teaching staff was determined by personal (gender, age), professional (teaching experience) or educational (qualifications) variables. The findings of this study point to the need for teacher training that instructs teachers on the use of ICT in order to favour the learning and educational innovation of students with disabilities

A performance simulation tool for the analysis of data gathering in both terrestrial and underwater sensor networks

Wireless sensor networks (WSNs) have greatly contributed to human-associated technologies. The deployment of WSNs has transcended several paradigms. Two of the most significant features of WSNs are the intensity of deployment and the criticalness of the applications that they govern. The tradeoff between volume and cost requires justified investments for evaluating the multitudes of hardware and complementary software options. In underwater sensor networks (USNs), testing any technique is not only costly but also difficult in terms of full deployment. Therefore, evaluation prior to the actual procurement and setup of a WSN and USN is an extremely important step. The spectrum of performance analysis tools encompassing the test-bed, analysis, and simulation has been able to provide the prerequisites that these evaluations require. Simulations have proven to be an extensively used tool for analysis in the computer network field. A number of simulation tools have been developed for wired/wireless radio networks. However, each simulation tool has several restrictions when extended to the analysis of WSNs. These restrictions are largely attributed to the unique nature of each WSN within a designated area of research. In addition, these tools cannot be used for underwater environments with an acoustic communication medium, because there is a wide range of differences between radio and acoustic communications. The primary purpose of this paper is to present, propose, and develop a discrete event simulation designed specifically for mobile data gathering in WSNs. In addition, this simulator has the ability to simulate 2-D USNs. This simulator has been tailored to cater to both mobile and static data gathering techniques for both topologies, which are either dense or light. The results obtained using this simulator have shown an evolving efficient simulator for both WSNs and USNs. The developed simulator has been extensively tested in terms of its validity and scope of governance

NMFS: Network Multimedia File System Protocol

We describe an on-going project to develop a Network Multimedia File System (NMFS) protocol. The protocol allows "transparent access of shared files across networks" as Sun's NFS protocol does, but attempts to meet a real-time delivery schedule. NMFS is designed to provide ubiquitous service over networks both designed and not designed to carry multimedia traffic

A modified generalized projective Riccati equation method

A modification of the generalized projective Riccati equation method is proposed to treat some nonlinear evolution equations and obtain their exact solutions. Some known methods are obtained as special cases of the proposed method. In addition, the method is implemented to find new exact solutions for the well-known Dreinfelds-Sokolov-Wilson system of nonlinear partial differential equations

The Biological and Medical Applications of Laser Light Abstract

ان عملية تطور تقنية الليزر بسرعة مع وجود أحدث أجهزة الليزر، التي يتم إدخالها باستمرار أصبح مهما في مجموعة متنوعة من المجالات البيولوجية والطبية. اصبح العلاج بالليزر المنخفض المستوى (Low Level Laser Therapy)  ذو اهمية كبيرة لعلاج اصابات الأنسجة الرخوة وحالات التهاب المفاصل. حيث لوحظ بالفعل زيادة في تكاثر الخلايا وزيادة الكولاجين بعد LLLTفي تحسين التئام الجروح عن طريق تحسين الالتهاب وانتشار الأرومة الليفية وتولد الأوعية وإزالة الكولاجين وإعادة بناء الانسجة. يعتبر العلاج الديناميكي الضوئي (PDT) باستخدام اشعة الليزر علاج مؤكد للسرطان والأمراض الأخرى والاصابات البكتيرية المقاومة للمضادات الحيوية في الجروح والحروق.The process of rapidly developing laser technology with the presence of the latest laser devices, which are constantly being introduced has become important in a variety of biological and medical fields. Low Level Laser Therapy has become of great importance for the treatment of soft tissue injuries and arthritis. An increase in cell proliferation and collagen after LLLT has already been observed in improving wound healing by improving inflammation, spread of fibroblasts, angiogenesis, collagen removal and tissue reconstruction. Photodynamic therapy (PDT) using laser beams is a proven treatment for cancer, other diseases, and bacterial infections resistant to antibiotics in wounds and burns