A123 Systems History of Lithium-Ion Batteries Rechargeable battery evolution accelerated as the world transitioned to instruments enabled by silicon microchip technology from those of bulky electrical components. Mobile devices were designed to be powered by lightweight energy storage systems. The development of batteries for this rapidly evolving market was challenging: • The nickel cadmium battery had been the only option for modern electronics for many years. It was a great improvement over
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According to Republic Act 5173‚ to ensure all safe passage of all vessels and watercrafts thru all navigable waters subject to the jurisdiction of the Philippines‚ the construction of all bridges over navigable waters has to be referred to the PCG for issuance of appropriate clearance‚ particularly confirming that the structure would not be hazardous to navigation. In addition to Republic Act 5173‚ the navigational span of the bridge should be provided in a way that it does not
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FLOATING COMMUNITY: A Sustainable Solution for the Rising Water Level in Malabon City Chapter I INTRODUCTION A Floating Community is a concept to provide much desired assistance to slums that are frequently destroyed during times of flooding. A Floating Community concept takes its environmental responsibilities seriously and endeavors to always choose the most sustainable options. According to Architect Felino Palafox Jr.‚ the design of stilt house is the ideal‚ but a floating house is the ultimate
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Luke I. INTRIDUCTION Over the past centuries‚ the world population grow up to bigger and bigger‚ and human believe that they are the owner of the earth. This is because after the industrial revolution and technological revolution‚ human brought an amazing period of change for the world and themself. Therefore‚ you can see the cities with skyscrapers in anywhere no matter desert or ice field‚ and people can get anything which they want through the internet. These changes base on the
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Comparison of Effective Biodegradable Plastics from; Saba(Musa paradisiaca) and Taro (Colocasia esculenta) An Investigatory project Submitted to the College of Arts and Sciences in Partial Fulfillment of the Requirements in Plant and Animal Genetics Submitted by: BS Biology 3 Abstract: The purpose of this experiment is to help one of the biggest issues concerning the environment‚ the massive production of plastics. The researchers will use environment-friendly
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devices‚ information technology‚ and so forth. Natural fibers such as silk‚ wool‚ and cotton are polymers and 1 Copyright © 2003 Marcel Dekker‚ Inc. 2 Chapter 1 TABLE 1.1 Some Common Polymers Commodity thermoplastics Polyethylene Polystyrene Polypropylene Polyvinyl chloride Polymers in electronic applications Polyacetylene Poly(p-phenylene vinylene) Polythiophene Polyphenylene sulfide Polyanilines Biomedical applications Polycarbonate (diphenyl carbonate) Polymethyl
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Egg drop projects teach students to use logic and teamwork to protect their eggs from a fall. There are a variety of ways to conduct an egg drop. Begin by explaining the process and handing out eggs to the students. Set the parameters of your egg drop and a deadline when your students must be ready to drop their eggs or go bust.1.Get an egg-eating snake‚ give it the egg and wait until the egg is about half way down the snake‚ then fit the snake with tail flights (cf a dart)‚ then drop said snake
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Feasibility trails were carried out by melt granulation method. Method: Drug was passed from 40# sieve. Weigh accurately drug‚ polymer and other excipients. Wax was melted at 60-65°C. After that drug and other ingredient were added to wax and mixing of drug and wax was done. Prepared lump was passed from 10# sieve. Granules were dried at 40°C. Lubricant was added to granules. Granules were compressed to prepare tablets. Table 4.6: composition of trail F1 and F2 Ingredients F1 F2 Metformin Hydrochloride
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Identification and Production of Materials ================================ Ethene‚ Polymers and Ethanol ================================ Catalytic Cracking Oil refineries need to balance their outputs of various products (petrol‚ diesel‚ fuel oil‚ etc.) to match the demands of the marketplace. Catalytic cracking is the process in which high molecular weight (high boiling point) fractions from crude oil are broken into lower molecular weight (lower boiling point) substances in order to increase
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Hoo Sze Yen Form 4 Experiments Physics SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 PENDULUM Hypothesis: The longer the length of a simple pendulum‚ the longer the period of oscillation. Aim of the experiment: To investigate how the period of a simple pendulum varies with its length. Variables: Manipulated: The length of the pendulum‚ l Responding: The period of the pendulum‚ T Constant: The mass of the pendulum bob‚ gravitational acceleration Apparatus/Materials: Pendulum bob‚ length
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