The Structure of the Earth and Plate Tectonics Structure of the Earth Mantle • The Earth is made up of 3 main layers: Outer core Inner core – Core – Mantle – Crust Crust The Crust • This is where we live! • The Earth’s crust is made of: Continental Crust Oceanic Crust - thick (10-70km) - buoyant (less dense than oceanic crust) - mostly old - thin (~7 km) - dense (sinks under continental crust) - young How do we know what the Earth is made of? • Geophysical surveys: seismic‚ gravity‚
Premium Plate tectonics
The aim of this report is to research wireless antennas and differences between them. Antennas are included 3 types: omnidirectional‚ semi-directional‚ and highly-directional. Any antenna has three fundamental properties: gain‚ directional and polarization. Omnidirectional Antennas. We can use this antenna in a: point-multipoint link‚ warehouse‚ hotspot‚ trade show‚ airport. The omnidirectional antennas transmit a signal in all directions‚ it is known dipole ("non-directional") antenna. The
Premium Radio Yagi antenna
Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. The most common wireless technologies use radio. With radio waves distances can be short‚ such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of fixed‚ mobile‚ and portable applications‚ including two-way radios‚ cellular telephones‚ personal digital assistants
Premium Bluetooth Wireless Wireless network
The Pacific Ring of Fire (see below) Tectonic plates of the world. The Pacific Ring of Fire (or just The Ring of Fire) is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40‚000 km (25‚000 mi) horseshoe shape‚ it is associated with a nearly continuous series of oceanic trenches‚ volcanic arcs‚ and volcanic belts and plate movements. The Ring of Fire has 452 volcanoes and is home to over 75% of the world’s active and dormant volcanoes
Free Plate tectonics Pacific Ring of Fire
MIMO:- TECHNOLOGY TO ADVANCE WIRELESS TRANSMISSION NETWORKS Prof. Navin Srivastava (Department of Electronics Engg.) Bharati Vidyapeeth Deemed University College of Engineering‚ Pune Email id-navinsri@gmail.com Ms Meena Chavan (Department of Electronics Engg.) Bharati Vidyapeeth Deemed University College of Engineering‚ Pune Email id-mschavan@bvucoep.edu.in Surya Prateek Soni (Department of Electronics Engg.) Bharati Vidyapeeth Deemed University College of Engineering‚ Pune Email id-suryaprateeksoni@gmail
Premium Wireless Information theory Radio
International Journal of Computer and Electrical Engineering‚ Vol.4‚ No.2‚ April 2012 Wireless Transmission of Electrical Power Overview of Recent Research & Development Sagolsem Kripachariya Singh‚ T. S. Hasarmani‚ and R. M. Holmukhe wireless transmission at 1891 in his “experimental station” at Colorado. Nikola Tesla successfully lighted a small incandescent lamp by means of a resonant circuit grounded on one end. A coil outside laboratory with the lower end connected to the ground
Premium Radio Nikola Tesla
Wireless Network Security Jon P. McKinley mckinley_jon@hotmail.com TS3150 Fundamentals of Network Design Sunday‚ December 28‚ 2003 TABLE OF CONTENTS Introduction 3 The Wireless Market 5 Components of a wireless network 6 Wireless Security Mechanisms1 8 Categories of Attack 10 802.11 Attack Risks 12 Wireless risk mitigation 13 Summary 15 References 16 Introduction Wireless networks have grown in popularity. This is largely due to the increase in the value of a network
Premium Computer network Wireless Wireless network
Green Technologies in Wireless Networking: Major Issues Mihir Kanti Sarkar‚ G.M. Faysal Ahmad E-mail: mihircse@gmail.com‚ faysal_5408@yahoo.com Abstract—We briefly discuss three issues related to the relevance and the possible impact of research in the field of green networking‚ with special attention to the wireless case in this paper. In this context energy efficiency is needed most. I. SOME DATA ABOUT ICT AND ENERGY The interplays between the ICT and energy fields are becoming stronger
Premium Computer network Efficient energy use Cellular network
Wireless Charger for Low Power Devices Chapter 1 1.1 Introduction We live in a world of technological advancement. New technologies emerge each and every day to make our life simpler. Despite all these‚ we still rely on the classical and conventional wire system to charge our everyday use low power devices such as mobile phones‚ digital camera etc. and even mid power devices such as laptops. The conventional wire system creates a mess when
Premium Magnetic field Inductor Transformer
CARLETON UNIVERSITY Department of Systems and Computer Engineering SYSC 5608 Wireless Communication Systems Engineering SYSC 5608 ≡ ELG 6168 ≡ CRN 33905 Course Objectives: • To learn the fundamental analytical dynamics of wireless communications (theory) • To become familiar with the current and emerging wireless technologies (applications) Instructor: Office: Phone: Email: URL: Lectures: Professor Halim Yanikomeroglu MC 7032 613-520-5734 halim@sce.carleton.ca http://www.sce.carleton.ca/faculty/yanikomeroglu
Premium 1965 1966 1969