Carbon dioxide is the main pollutant that warms our planet Earth. Living things produce carbon dioxide when they breathe. However‚ carbon dioxide is considered to be a harmful pollutant when linked with any vehicle‚ trains‚ power plants‚ as well as other various human activities that involve burning fossil fuels such as gasoline and natural gas. Studies have shown that In the past 150 years‚ such activities have released enough carbon dioxide into the atmosphere to raise its levels higher than they
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simply a method of transmitting information from one place to another extremely fast. This is done by shooting pulses of light through an optical fibre. Creating the optical signal involving the use of a transmitter‚ relaying the signal along the fiber‚ ensuring that the signal does not become too distorted or weak‚ receiving the optical signal‚ and converting it into an electrical signal. An optic-fibre is a small fibre no thicker than a human hair‚ either made of glass or plastic that is transparent
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Souvenir 2013 Optical Fiber Project & its Impact Background In the initial days‚ the backhaul of telecom equipments relied on microwave and satellite communication. The rapid proliferation of various telecom technologies and the desire to penetrate larger market segments resulted in high national and international traffic. The high cost of space segments for statellite communications and limited capacity of Microwave links compelled Nepal Telecom to embrace the optical fiber deployment to cater high
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5 Figure 1.3 : Drawing of fiber 6 Figure 1.4 : Double crucible method 7 Figure 2.1 : Total internal reflection in fiber optics 9 Figure 3.1 : Transfer rate with different types of cable and LAN 10 Figure 3.2 : Spiral Motion of Photons 12 2. INTRODUCTION 2.2 GENERAL OVERVIEW 2.2.1 This report looks into three major sections: fabrication process and operational principle‚ total internal reflection of fiber optics and limitations‚ and enhancement
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Broadband Transport Specialist Module 01 - History of Fiber 1. What is the name of the type of architecture (or topology) used by SONet or 10 gigabit Ethernet (10gigE) networks? a. bus b. ring c. star d. hybrid e. mesh 2. The greater the density difference between two materials‚ the more a ray of light will ___. (Choose 2) a. attenuation less b. bend c. refract d. deflect e. absorb 3. What does LASER stand for? a
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step index fiber It is an optical fiber which has a core of constant refractive index.there are two types of step index fibers:single mode si and multi mode si fiber single mode step index fiber has only one mode of EM propagation (HE11) an has a core diameter of about 8-12 Um. and multi mode si has many mode of propagation and has a core of diameter of about 50 Um which allow many no of modes through it. single mode step index has an adv of lower inter modal dispersion as there is only
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Carbon Trading: Future Money Making Venture for India Sarika Gupta Assistant Professor‚ P.M.B. Gujrati Commerce Collage‚ Indore Abstract Carbon Trading are generated by enterprises in the developing world that shift to cleaner technologies and thereby consumption‚ consequently reducing their greenhouse gas emissions. For each tone of carbon dioxide (the major GHG) emission avoided‚ the entity can get a carbon emission certificate which they can sell either immediately or through a futures market
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Advantages and Disadvantages of Fiber Optics An optical fiber is a thin and flexible fiber that carries the light between the two ends of the fiber. Optical fibers are widely used in Fiber Optic Communications‚ which is the transmission over longer distances at higher bandwidths than other communications. A fiber optic communication system consists of three components: an optical transmitter‚ a fiber optic cable‚ and an optical receiver. The optical transmitter converts electrical signal to
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2013 Carbon Footprint Until very recently‚ most people had never heard of a “carbon footprint.” Now‚ all of a sudden‚ the phrase is hard to avoid. In an age of slick slogans‚ fast fashions and fickle fads it’s easy to assume that this is just another quirky passing gimmick. But it could well be the most important concept of our time. A carbon footprint is the amount of carbon dioxide (CO2) emitted as a direct or indirect result of an activity (Yarrow‚ Joanna. How to Reduce Your Carbon Footprint:
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1.Environmental protection movement * The environmental movement (a term that sometimes includes The conservation and green movements) is a diverse scientific‚ social‚ And political movement. in general terms‚ environmentalists advocate The sustainable management of resources‚ and the protection (and Restoration‚ when necessary) of the natural environment through Changes in public policy and individual behavior . In its recognition of humanity as a participant in ecosystems‚ the movement is centered
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