Science and Technology Current Affairs – 2018
Latest Science & Technology Current Affairs 2015-2016; current developments in Science and Technology 2015-2016 all important national / international updates in science and tech and events for the year 2015-2016.
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Indian Institute of Technology (IIT) Madras has developed portable solar-powered cold storage device with 500 kg capacity for storing vegetables and fruits, among other items. The device will help farmers store their produce for sufficient time so that it does not get spoilt before it is sold, thereby preventing wastage of agricultural produce. The first unit of device was deployed at farm in Madurantakam in Kancheepuram district in Tamil Nadu.
Solar-powered cold storage device
It has been developed under project funded by Department of Science and Technology (Ministry of Science and Technology) and IIT-M. It provides storage facility with temperature ranging between four and 10 degree Celsius. Using it, vegetables, leaves, flowers and fruits can be stored for 24 hours in the device. Each device is enough for 5 or 6 acres of land or for group of three to four farmers. The unit uses thermal energy storage. The photovoltaic-powered refrigeration system is used to charge indoor thermal battery in form of latent heat during day time and used to maintain temperature (10 C) for 20-24 hours. Each unit costs between Rs 5.5 to Rs 6 lakh and storage capacity could be scaled down based on requirement.
New Delhi Municipal Corporation (NDMC) has launched quick response (QR)-enabled fridge magnets for digital payment of bills. The magnets are personalised and each customer will have unique QR Code mapped to their consumer account number. It is powered by SignCatch – an IT and services company,.
QR-enabled fridge magnets
There will be separate magnets provided by the NDMC to its consumers’ doorstep for both electricity and water bills. Consumers can stick these magnets on their refrigerators at home and use their smartphones to scan QR Code on magnet to pay their bills instantly. The QR Code will redirect consumers to their current bill with option to pay using any of digital payment channels active with NDMC like credit/debit cards, net banking, wallet, and UPI. The move will reduce collection costs and expedite revenue realisation. Moreover, these magnets will be extremely useful in cases where a consumer misplaces the pending paper bills.
Quick Response (QR) code
It is a two-dimensional (matrix) machine-readable bar code made up of black and white square. This code can be read by the camera of a smartphone. It is used for storing URLs or other information that link directly to text, emails websites phone numbers. It is capable of 360 degrees (omni-directional), high speed reading.
It can store up to 7089 digits as compared to conventional bar codes which can store max 20 digits. It encodes same amount of data in one-tenth the space of a traditional bar code. It carries information both horizontally and vertically. It has error correction capability and data stored in it can be restored even if it is partially damaged or dirty.