Thursday, 12 May 2016
Arsenal transfer news and rumours: Gunners eyeing THREE striker options?
Wednesday, 11 May 2016
Around U : 3. Li-ion battery
LITHIUM- ION CELL
Li-ion cell is a rechargeable battery in which Li-ionoves between anode and cathode during charging and discharging.It is more popular than other batteries because of the various characteristics of lithium.Li has higher negative value for reduction potential and a lower atomic mass than any other metal.Only 6.94 g of Li is needed to provide one mole of electrons.
In typical litium ion cell ,the positive electrode is made by using a crystalline mixed oxide Li2O.Co2O3 or LiCoO2.The crystal contains both Li+ ion and Co3+ ion occupying the voids of the oxide array.Such crystals are usually synthesised by hydrolysis of the respective salt under hydrothermal condition.The negative terminal is made of graphite .The electrolyte is a solution of Li salt ,in an organic solvent such as ether or a solid phase polymer electrolyte which can transport Li+ ion.
Charging:-
During charging the cell act as an electrolytic cell,the electrical energy is converted into chemical energy.
At Anode (+) :
Some Li + ions get removed from the crystal lattice .and in the respective lattice site Co3+ ion get oxidized to Co4+ and electrical neutrality is maintained in the lattice.
At Cathode (-) :
The Li ion produced at the Anode get migrated through the electrolyte and get reduced to lithium atom at the graphite electrode.Li atoms are inserted between the layers of carbon atoms.This so called lithiated graphite , containing no Li metal as such.
Discharging
During discharging ,the cell acts as electro chemical cell,the chemical energy is converted to electrical energy.When the cell act as electrochemical cell ,LiCoO2 act as Cathode ,while the graphite act as anode.
Lithium ion cell is based on LiCoO2 has an EMF of 3.7 V.The cell is having high energy to weight ratio.They are used in cell phones,laptop computers,digital camera etc.The cell is not suitable for making large size of battery because of possibility of explosion.
Another type of Li-ion cell has been developed based on active materials like LiFePO4. The cell is having a potential of 3.3 v.The cell is suitable for making large size batteries suitable for automobile application.
Li-ion cell is a rechargeable battery in which Li-ionoves between anode and cathode during charging and discharging.It is more popular than other batteries because of the various characteristics of lithium.Li has higher negative value for reduction potential and a lower atomic mass than any other metal.Only 6.94 g of Li is needed to provide one mole of electrons.
In typical litium ion cell ,the positive electrode is made by using a crystalline mixed oxide Li2O.Co2O3 or LiCoO2.The crystal contains both Li+ ion and Co3+ ion occupying the voids of the oxide array.Such crystals are usually synthesised by hydrolysis of the respective salt under hydrothermal condition.The negative terminal is made of graphite .The electrolyte is a solution of Li salt ,in an organic solvent such as ether or a solid phase polymer electrolyte which can transport Li+ ion.
Charging:-
During charging the cell act as an electrolytic cell,the electrical energy is converted into chemical energy.
At Anode (+) :
Some Li + ions get removed from the crystal lattice .and in the respective lattice site Co3+ ion get oxidized to Co4+ and electrical neutrality is maintained in the lattice.
At Cathode (-) :
The Li ion produced at the Anode get migrated through the electrolyte and get reduced to lithium atom at the graphite electrode.Li atoms are inserted between the layers of carbon atoms.This so called lithiated graphite , containing no Li metal as such.
Discharging
During discharging ,the cell acts as electro chemical cell,the chemical energy is converted to electrical energy.When the cell act as electrochemical cell ,LiCoO2 act as Cathode ,while the graphite act as anode.
Lithium ion cell is based on LiCoO2 has an EMF of 3.7 V.The cell is having high energy to weight ratio.They are used in cell phones,laptop computers,digital camera etc.The cell is not suitable for making large size of battery because of possibility of explosion.
Another type of Li-ion cell has been developed based on active materials like LiFePO4. The cell is having a potential of 3.3 v.The cell is suitable for making large size batteries suitable for automobile application.
Takeaway: does plasma have super powers?
Amsterdam’s Fab City: urban solutions for tomorrow
Girl to be fitted with 3D printed ear in Australia
Kiel students take Tetris to a whole new level
Tuesday, 10 May 2016
Around U :2
PETROLEUM
The word petroleum is composed of two Latin words Petra means rock and oleum means oil.Petroleum is a dark brown ,thick,and viscous liquid that occurs below the earths surface.It is a naturally occurring raw material which is a complex mixture of paraffinic,olefinic,and aromatic hydrocarbons together with small amounts of organic compounds containing O,N and S.
Mining Of Petroleum:-
Petroleum is found deep below the earth crust ranging from a few hundred meters to about 2-3 km.So, it's mining is a very expensive process.The possible locations are first identified by aerial surveys and ground tests.
The oil is found floating over salt water and has a layer of natural gas on the top of it. Mining is done by drilling holes into the earths crust and pipes are inserted until the pipes reach the petroleum bearing rocks.Usually the crude oil gushes out on its own due to high internal pressure. When the gas pressure decreases,the crude oil is pumped out with help of air lift pumps.
Refining Of Petroleum:-
The crude oil obtained is a complex mixture of hydrocarbons which is always found mixed with considerable amount of water and earth particles.So it becomes necessary to separate these hydrocarbons to make each fraction available for appropriate use. The crude oil is separated into various useful fractions by fractional distillation.This process of dividing petroleum into different useful fractions with different boiling ranges is called refining of petroleum and the plants set up for this purpose are called Oil refineries.
Petroleum Products:-
The word petroleum is composed of two Latin words Petra means rock and oleum means oil.Petroleum is a dark brown ,thick,and viscous liquid that occurs below the earths surface.It is a naturally occurring raw material which is a complex mixture of paraffinic,olefinic,and aromatic hydrocarbons together with small amounts of organic compounds containing O,N and S.
Mining Of Petroleum:-
Petroleum is found deep below the earth crust ranging from a few hundred meters to about 2-3 km.So, it's mining is a very expensive process.The possible locations are first identified by aerial surveys and ground tests.
The oil is found floating over salt water and has a layer of natural gas on the top of it. Mining is done by drilling holes into the earths crust and pipes are inserted until the pipes reach the petroleum bearing rocks.Usually the crude oil gushes out on its own due to high internal pressure. When the gas pressure decreases,the crude oil is pumped out with help of air lift pumps.
Refining Of Petroleum:-
The crude oil obtained is a complex mixture of hydrocarbons which is always found mixed with considerable amount of water and earth particles.So it becomes necessary to separate these hydrocarbons to make each fraction available for appropriate use. The crude oil is separated into various useful fractions by fractional distillation.This process of dividing petroleum into different useful fractions with different boiling ranges is called refining of petroleum and the plants set up for this purpose are called Oil refineries.
Petroleum Products:-
- LPG
- Gasoline or petrol
- Kerosene oil
- Diesel oil
Monday, 9 May 2016
Around U : 1
OLED (Organic Light Emitting Diode)
An organic light emitting diode is a light emitting diode in which the emissive electroluminescent layer is a film of organic compound which emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes, at least one of these electrodes is transparent.
The emissive layer used used in a OLED is made up of organic plastic molecules out of which the most commonly used is polyfluorene.The conducting layer is also an organic molecule and the most commonly used component is polyaniline.
To Make An OLED:-
An organic light emitting diode is a light emitting diode in which the emissive electroluminescent layer is a film of organic compound which emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes, at least one of these electrodes is transparent.
The emissive layer used used in a OLED is made up of organic plastic molecules out of which the most commonly used is polyfluorene.The conducting layer is also an organic molecule and the most commonly used component is polyaniline.
To Make An OLED:-
- To make an OLED light up ,we simply attack a voltage across the anode and cathode.
- As the electricity starts to flow ,the cathode receives electrons from the power source and the anode loses them.
- Now we have a situation where the added electrons are making the emissive layer negatively charged ,while the conducting layer is becoming positively charged.
- Positive holes are more mobile than negative electrons so they jump across the boundary from the conducting layer to the emissive layer.when a hole meets an electron ,the two things cancel out and release a brief burst of energy in the form of a quantum of light or a proton ,in other words. This process is called recombination, and because it's happening many times a second the OLED produces continuous light for as long as the current keeps flowing.
- The manufacture of OLED is highly economical and is more efficient than LCD and the panel screens.
- It will be a great surprise to see displays on our clothing and fabrics.This technology will help in carrying huge displays in our hands.
- There is much difference in watching a HD TV to an OLED display.As the contrast ratio of OLED is very high,it can be watched from an angle about 90 degrees without any difficulty.
- No back light is produced by this device and the power consumption is also very less.
- OLED has a refresh rate of 100,000 Hz which is almost 9900 HZ greater than an LCD display.
- The response time is less than 0.01 ms.LCD needs response time of 1 ms.
Read this cute little poem!! CIRCLE by J . Shahaha
Circle
The earth we live is a circle.
Hot hot sun is a circle.
The cool moon is a circle.
Delicious orange is a circle.
Bangles we wear too is a circle.
Hey…The ball we play is also a circle.
Children! Now We all know
What a circle is!
The earth we live is a circle.
Hot hot sun is a circle.
The cool moon is a circle.
Delicious orange is a circle.
Bangles we wear too is a circle.
Hey…The ball we play is also a circle.
Children! Now We all know
What a circle is!
Mind-controlled drones show off latest in tech
Scientists have been able to detect brainwaves for more than a century, and mind-controlled technology already is helping paralyzed people move limbs or robotic prosthetics. But now the technology is becoming widely accessible. Emotiv and NeuroSky are among startups offering electroencephalogram headsets for purchase online for several hundred dollars. The models Florida racers used cost about $500 US each.
Here's how the technology delivers an abstract thought through the digital realm and into the real world: Each EEG headset is calibrated to identify the electrical activity associated with particular thoughts in each wearer's brain — recording, for example, where neurons fire when the wearer imagines pushing a chair across the floor. Programmers write code to translate these "imaginary motion" signals into commands that computers send to the drones.
Professor Juan Gilbert, whose computer science students organized the race, is inviting other universities to assemble brain-drone racing teams for 2017, pushing interest in a technology with a potential that seems limited only by the human imagination.
As our lives become increasingly reliant on internet-enabled devices, a concept known as the internet of things, Gilbert and his team want to know how mind-controlled devices can expand and change the way we play, work and live.
You might use your mind to unlock your car, or explore a virtual world, hands-free. It could be applied for real-time monitoring of our moods and states of consciousness. Researchers are studying whether they can use a big-rig driver's mind to trigger a device that will tell him when he's too tired to drive.
"One day you could wear a brain-controlled interface device like you wear a watch, to interact with things around you," Gilbert said.
So far, BCI research has largely been about helping disabled people regain freedom of movement. Recently, an Ohio man using only his thoughts was able to move his paralyzed hand thanks to a chip implanted in his brain. In Miami, doctors using BCI are helping a 19-year-old man stand on his own after losing the use of his legs in a motorcycle accident.
But as the technology moves toward wider adoption, ethical, legal and privacy questions remain unresolved.
The U.S. Defence Department — which uses drones to kill suspected militants in the Middle East from vast distances — is looking for military brain-control applications. A 2014 Defence Department grant supports the Unmanned Systems Laboratory at the University of Texas, San Antonio, where researchers have developed a system enabling a single person with no prior training to fly multiple drones simultaneously through mind control.
In this system, instead of the pilot thinking certain thoughts to move the drones, she looks at a screen with flickering signals, triggering brain activity that translates into specific movements. "It can accommodate lots of commands, much more than imaginary motion can," UT scientist Yufei Huang said.
But enthusiasts should think carefully before handing over their brainwaves for purposes that have yet to be conceived or contained, said Kit Walsh, a staff attorney at the Electronic Frontier Foundation with a degree in neuroscience from MIT.
"EEG readings are similar to fingerprints: Once I know what the readings look like from your brain in a certain situation," she said. "I'll be able to recognize you by that pattern again later on."
Sunday, 8 May 2016
U Bored!!! Try new Oreo Milk Shake! Let this be a special day for u!!!
Ingredients
Chocolate syrup -4 tsp
Oreo Cookies divided- 8
Milk - 1 cup
Vanilla ice cream softenned - 2 cups
Instructions
Spoon 1 tsp ,syrup into each of 4 glasses.Roll each glasses to coat bottom and inside of glass.Finely chop 4 Cookies and set aside.
Quarter remaining Cookies ,place in blender.Add milk and ice cream ,blend until smooth
Pour into prepared glasses, top with chopped Cookies ,Serve immediately!
Nutritious milk shake is now ready!!!! Enjoy!
Chocolate syrup -4 tsp
Oreo Cookies divided- 8
Milk - 1 cup
Vanilla ice cream softenned - 2 cups
Instructions
Spoon 1 tsp ,syrup into each of 4 glasses.Roll each glasses to coat bottom and inside of glass.Finely chop 4 Cookies and set aside.
Quarter remaining Cookies ,place in blender.Add milk and ice cream ,blend until smooth
Pour into prepared glasses, top with chopped Cookies ,Serve immediately!
Nutritious milk shake is now ready!!!! Enjoy!
Saturday, 7 May 2016
World's Tiniest Engines Could Power Microscopic Robots
Virat Kohli-a superman??
Friday, 6 May 2016
Women!!! Not a Medicine for your MENACE!!!
KERALA!! A state that boasts India's highest literacy level and development is most sadly having 300% increase in violence against women!The issue grew crucial starting with sowmya case and ended up in the latest jisha case. Not entirely emphasising on these 2 abusements. These are just 2 among thousands!! This clearly answers to all controversies that abusement against women is not based on any parameters.Wherever she is, however she dresses,of what age she is,her caste, looks, nothing matters!!!
On specifying the most recent case of the law college student Jisha, she was a girl from a family that includes her mother and a sister. She went through many problems in her life without the care and protection of her father.But however she managed to study and was nearing her dream, to be an advocate.It was then, the tragedy struck that family.
This is a crime, not a mistake. If people have that fear of doing crime in our country, this huge increase in the level of abusemnent against women would never happen here. If you really have the heart to bring out justice for each women who had been victims to such abusements, fight until such cases vanish out from here.You have got a mother, wife, sister or a girl child..Let us make sure this will never happen to one more girl over here.Let us fight!! Not Protest!!!
On specifying the most recent case of the law college student Jisha, she was a girl from a family that includes her mother and a sister. She went through many problems in her life without the care and protection of her father.But however she managed to study and was nearing her dream, to be an advocate.It was then, the tragedy struck that family.
This is a crime, not a mistake. If people have that fear of doing crime in our country, this huge increase in the level of abusemnent against women would never happen here. If you really have the heart to bring out justice for each women who had been victims to such abusements, fight until such cases vanish out from here.You have got a mother, wife, sister or a girl child..Let us make sure this will never happen to one more girl over here.Let us fight!! Not Protest!!!
Self-Driving Cars In A Fast Lane: Fiat Chrysler Chief
Captain America - civil war movie review
24 -surya's comeback??
Wednesday, 4 May 2016
iphone 7 will've 3.5mm headset jack after all, latest leak says...!
A leaked shot purportedly showing the iphone 7 s innards comes to contradict all the previous reports. Thats because the part shown does in fact feature the connection to the 3.5mm headset jack, even if overall it looks pretty different to what's been used for the iphone 6s.
And that in itself raises some questions about the authenticity of this leak.Needless to say then, dont take this granted just yet. Still if the leaked parts belong to iphone 7, then the rumours of the headset jacks demise have been false!!
The apple iphone 7 could be waterproof and it might support a touch home button.Its antenna line are apparently going to be redesigned for a more stream lined look. The iphone 7 and iphone 7plus are due to be outed at apple's annual fall event.
And that in itself raises some questions about the authenticity of this leak.Needless to say then, dont take this granted just yet. Still if the leaked parts belong to iphone 7, then the rumours of the headset jacks demise have been false!!
The apple iphone 7 could be waterproof and it might support a touch home button.Its antenna line are apparently going to be redesigned for a more stream lined look. The iphone 7 and iphone 7plus are due to be outed at apple's annual fall event.
cric lovers..bad news!!
INDIA on smart phone mania..!!
Apple loses a trademark court ruling in china
A Chinese company is free to use 'IPHONE' name on its handbags and leather goods ,as Apple has lost a trademark court ruling in china.
Tuesday, 3 May 2016
Monday, 2 May 2016
IPL 9, Match 30, Royal Challengers Bangalore vs Kolkata Knight Riders
Chasing a daunting 186, Yusuf Pathan (60) and Andre Russell (39) powered Kolkata to a superb 5-wicket win over Bangalore to move up to the second spot on the IPL table. (Scorecard)
Highlights:
Kolkata Knight Riders innings
23.39 IST: That's it! Yusuf Pathan (60), Andre Russell (39) muscle KKR to 5-wicket win over RCB
23.31 IST: SIX! Pathan reaches his fifty with a mighty hit off Shamsi. KKR 175/5 in 18.1 overs
23.27 IST: OUT! RCB gets the breakthrough! Chahal floats it up on a length outside off, Russell looks to launch it over cover but skews it to sweeper cover where Binny takes the catch with ease. The big West Indian goes but not before doing serious damage to the Bangalore attack. A strike too late for the hosts perhaps. KKR 165/5 in 17.3 overs
23.24 IST: Big, Big over for KKR! That's what they were looking for! 4,4,4,6,2,4 - Pathan on fire! Watson had a nightmare. KKR 163/4 in 17 overs
23.18 IST: 16 overs are down and KKR are 139/4, need 47 runs in 24 balls. Russell and Pathan have kept the visitors' hopes alive.
23.10 IST: Plenty of muscle power on display from Russell. Collects 18 runs from Shamsi's over, including 2 Sixes and a four! KKR 123/4 15 overs
23.02 IST: Good comeback from Aaron after that first-ball six from Pathan. KKR 93/4 in 13 overs
23.00 IST:SIX! Massive power explosion from Pathan! Short of a length on off, Pathan goes back to that one and pulls it away over the cow corner region for a big maximum. He packs a real solid punch when he connects. In fact both these batsmen do and Kolkata need a big stand from this duo. KKR 90/4 in 12.1 overs
22.48 IST: OUT! Shane Watson concluded Manish Pandey's role at 8! Shortish around off, Pandey makes room to pull but mistimes it towards wide long on where Baby takes an easy catch. They check for the no ball but Watson seems to be marginally fine. So, another huge blow for Kolkata as Pandey departs. Once again Watson comes in to take a big wicket. KKR 69/4 in 10.1 overs
22.40 IST: OUT! ARAVIND STRIKES! Slower ball just around off, Gambhir misread it completely as he looks to heave across the line. Misses it to be rapped on the front pad. Appeal for lbw and it is given. Looked like the impact was outside the line. Ends a struggling knock by Gambhir. KKR 66/3 in 9 overs
22.27 IST: Gautam Gambhir tries to propel the run-rate, collects 15 runs off Shamsi's over. KKR 52/2 in 7 overs
22.16 IST: OUT! Chahal castles Lynn for 15! What a ball! Floats it up on middle and leg, sharp leg break and Lynn has no clue to that one. The ball pitches and fizzes away to go past him to disturb the stumps. Another crucial wicket for Bangalore this as the big Australian departs. That is a delivery that would have made any leg spinner proud. KKR 34/2 in 4.4 overs
22.11 IST:Four overs are gone and KKR are 32/1. Well, RCB dropped an opportunity to get rid of Lynn as his catch was put down due to a miscommunication from the fielders.
22.02 IST: SIX!! Chris Lynn smashes the first six off KKR's innings. He deposits a delivery from Binny into the crowd for a 93-meter six.
22.01 IST: Chris Lynn joins Gautam Gambhir at the crease after the fall of Uthappa's wicket. KKR 11/1 after 2 overs.
21.56 IST: WICKET!! Stuart Binny strikes for RCB in the very first over as Uthappa drives a swinging delivery outside off-stump straight to Kohli at point. Robin departs for 1
21.52 IST: Robin Uthappa takes strike for the first ball for KKR. Stuart Binny will start off the proceedings for Bangalore.
21.37 IST: Fifties from KL Rahul (52) and Virat Kohli (52) lifts RCB to 185/7 in 20 overs What a finish to the Bangalore innings! 54 came off the final 3 overs as they got themselves to a very challenging score.
21.30 IST: OUT! Russell gets rid of Sachin Baby for 16! Soft dismissal! Low full toss on leg stump, Baby walks across the stumps to play the scoop but goes off the cue end. The ball pops up back at Russell who takes the easiest of return catches. Fires the ball at the striker's stumps in anger and seems to have broken the bails in the process. RCB 167/5 in 19 overs
21.24 IST: Expensive over from Umesh Yadav - 23 off it! Sachin Baby making the most out of it with 2 Fours and 1 Six! RCB 154/4 in 18 overs
21.14 IST: OUT! Morkel gets rid of Kohli for 52! Big blow for the home team! Good length outside off, Kohli steps out to launch it over cover but mistimes another big shot. Andre Russell in the deep and he doesn't drop many. So, the dropped catch doesn't cost Kolkata and this is a massive, massive wicket at this stage. Ends a good knock by Kohli although he was unusually rusty tonight. RCB 129/4 in 16.4 overs
21.12 IST: FIFTY for Virat Kohli off 42 balls!RCB 126/3 in 16.1 overs
21.10 IST:SIX! JUST OVER THE ROPES!Narine drifts it in from around off, Watson reaches out to that one and slog sweeps it over deep mid-wicket for a maximum. Russell near the ropes but it just flew over him for the biggie. Much needed one for the hosts. The innings badly needs momentum.RCB 125/3 in 16 overs
21.08 IST: Brilliant over from Morkel - just 3 off it! RCB 112/3 in 15 overs
21:00 IST: OUT! Chawla strikes again! AB de Villiers departs for 4! Fires in the slider just around off, skids through off the deck as AB looks to play across the line. The ball kept a bit low perhaps as it crashes into the pads. The South African was looking at sea against spin tonight and falls eventually to a spinner. Huge blow that for Bangalore. RCB 109/3 in 13.4 overs
20.56 IST: RCB have got a great start! Now AB de Villiers and Kohli will look to accelerate the run-rate. RCB 106/2 in 13 overs
20.53 IST: OUT! Rahul departs! Full and outside off, Rahul tries to carve it away over cover but miscues it high to the deep where Yusuf Pathan makes no mistake. Comfortable catch and that ends a superb innings from the opener. Provided impetus to the innings when Kohli was struggling. RCB 97/2 in 12 overs
20.48 IST:FIFTY for KL Rahul off 29 balls! That's his third half-century in this season. RCB 92/1 in 11 overs
20.45 IST: Superb hitting from KL Rahul! The batsmen collected 15 runs off Piyush Chawla, including a SIX and a four. RCB 79/1 in 10 overs
20.40 IST: Good over from Umesh Yadav! Gives away just 4 runs! The first strategic time break of the night has been enforced.RCB 64/1 in 9 overs
20.36 IST: Fifty-run stand comes up between Kohli and KL Rahul! RCB 60/1 in 8 overs
20.31 IST: Fifty up for RCB in the 7th over! Rahul and Kohli have done well to steady the ship after Gayle's early dismissal. RCB 51/1 in 7 overs
20.26 IST: Good over for RCB! KL Rahul thrashes Sunil Narine for 10 runs, including 2 fours! End of powerplay and RCB 40/1 in 6 overs
20.24 IST: Five overs are down and RCB are 30/1. So far KKR have done well to keep things tight. Now, their spinners can come into play.
20.07 IST: OUT! Morne Morkel strikes as Chris Gayle departs for 7! IN THE AIR....AND GONE! Short ball around off, effort ball from Morkel and Gayle cannot resist the pull stroke. The bounce gets big on him and the top edge goes high up in the air on the leg side. Uthappa calls for the skier and takes it with ease. That's a massive wicket for Kolkata up front. RCB 8/1 in 1.3 overs
20.00 IST: Here we go! KL Rahul and Chris Gayle are out in the middle. Andre Russell opens for KKR.
19.40 IST: Playing XIs:
Kolkata Knight Riders: Robin Uthappa, Gautam Gambhir, Manish Pandey, Chris Lynn, Suryakumar Yadav, Yusuf Pathan, Andre Russell, Piyush Chawla, Umesh Yadav, Sunil Narine, Morne Morkel
Royal Challengers Bangalore: Virat Kohli, Chris Gayle, AB de Villiers, Shane Watson, Lokesh Rahul, Sachin Baby, Stuart Binny, Varun Aaron, Sreenath Aravind, Yuzvendra Chahal, Tabraiz Shamsi
19.30 IST: Toss! Kolkata Knight Riders opt to bowl against Royal Challengers Bangalore. Manish Pandey and Morne Morkel are back for KKR while Chris Gayle has returned for RCB.
Subscribe to:
Posts (Atom)