Essay Examples on Quincy College

Polar codes have been considered as an Important Breakthrough

Polar codes have been considered as an important breakthrough in information theory mainly due to the fact that they are capable of achieving capacity with its explicit construction and low encoding and decoding complexity Polar codes are based on a novel concept of channel polarization introduced by Erdal Arikan Being probably the first-ever capacity-achieving codes polar codes have attracted increasing attention from both academia and industries That is why they have been selected as one of the most promising channel codes for the next-generation telecommunications standard 5G Let us consider a binary input discrete memoryless symmetric BI DMS channel The Channel Polarization technique creates N synthesized channels out of N identical copies of the given BI DMS channel The recursive structure of this transform manufactures polarized channels as N in the sense that they are either perfect or useless but nothing in between Once all channels get polarized there is no need to code anymore as one can directly transmit information bits over the perfect channels and dummy bits over the useless ones Although belonging to family of capacity-achieving codes with low encoding and decoding complexity polar codes suffer from certain drawbacks in practice 

1 pages | 388 words

Idea of Molecular Gastronomy

Idea Generation Ooho sphere idea was basically generated at London by SKIPPING ROCKS LAB in 2014 on the basis of idea of molecular gastronomy When this idea was launched it created a sensation on the internet This idea was generated to solve the problem of disposable plastic bottles in landfills in U K alone around 16 million bottles are used at a daily basis whereas another 19 million bottles are recycled These plastic bottles are non biodegradable as it uses oil to manufacture The company thought that it can solve the problem of plastic bottles by introducing 200 milliliter bottle but it can be released in 2016 The got the idea of 200 millilitre bottle because of all the bottled water sold roughly 1 3 bottles are either half litre or less Source http www independent co uk This image depicts how much time it takes to decompose a plastic bottle and data showing fish to plastic ratio by 2050 and how much CO2 is emitted per bottle The new packaging is based on the technique of spherification which is also used to make fake caviar and juice balls for boba tea In order to make these balls you need to dip an ice ball into calcium chloride and brown algae extract which is totally edible hygienic and biodegradable This is where a spherical membrane is formed that holds the ice as it melts and then leftover to return to room temperature When people try it for the first time they want to eat it because it s part of the experience says Pierre Paslier cofounder of Skipping Rocks Lab How is it made Ooho spheres are created by dipping ice balls into algae mixture of sodium alginate that forms a membrane around the ice The ice then melts into water and the membrane remains in the same shape The membrane algae mixture makes a watertight seal around the ice ball keeping the water inside the ball The membrane is edible as well as biodegradable

2 pages | 651 words