Posts Tagged ‘London’
Wednesday, November 13, 2013 @ 09:11 PM gHale
This falls in the line of believe it or not, but if you want to gain more efficiency with solar cells, just turn up the music.
Researchers from Queen Mary University and Imperial College in London built a solar cell that generates current from the sun and sound waves.
Safa Shoaee, Joe Briscoe, James R. Durrant, and Steve Dunn took an ordinary polymer solar cell and attached a layer of zinc oxide to it. The zinc oxide formed tiny rods, like hairs, except these were only nanometers long.
When the scientists exposed the cell to noise along with light, it generated more current than with the light alone. The sounds that gave the biggest power boost came from pop and rock music.
The increase in power wasn’t just because zinc oxide and polymer have a certain taste in tunes. Zinc oxide is a piezoelectric material. That means it generates current when bent or twisted, or, in reverse, bends and twists when a current ends up applied. Piezoelectric materials are common; they show up in buzzers and small speakers (the piezoelectric stuff is what makes the sound).
When the scientists played rock or pop, there were more high-frequency sounds and beats, which have more energy than lower frequency ones. Beats, as on a drum, packed a lot of energy into a short period of time.
When the sound waves hit the zinc oxide, it bent it and generated electricity. It took surprisingly little sound, about 75 decibels, to produce 40 percent more power. The sound was about the amount one would hear near a busy highway or a noisy restaurant.
Dunn said in a Queen Mary University video that he wants to make bigger devices, and eventually see them in any area where there’s a lot of ambient noise. Restaurants and train stations could use the cells to power displays without batteries, taking advantage of the sun when it’s available and the noise when it isn’t — or using both.
Thursday, October 10, 2013 @ 05:10 PM gHale
A London man became to first person to receive a sentence through the new National Crime Agency (NCA).
Olukunle Babatunde, 27, of Croydon, South East London, received five years and six months at Inner London Crown Court after admitting swindling $1.2 million (£751,229) from more than 700 online banking customers. He pleaded guilty to a number of crimes including “conspiracy to defraud UK banks, financial institutions and their customers,” according to the NCA.
Dubbed the “British FBI”, the new police body started work on Monday and replaced the Serious Organized Crime Agency.
“This is an excellent result built on the joint working of precursor agencies and has involved the examination of a large number of data, resulting in 765 victim accounts being identified,” said Andy Archibald, head of the NCA’s National Cyber Crime Unit.
“The National Crime Agency will continue to share information and intelligence with regards to serious and organized cyber crime, ensuring those who pose a threat to the public are identified and held accountable for their actions.”
Officers caught the suspect during an investigation into a phishing scam which involved luring victims into giving up their bank login details. This information is of clear value to criminals, who can either sell on the login details or use them to carry out fraudulent transactions.
The NCA began work on Monday, when it officially took charge of more than 4,000 “triple-warranted” officers who each wield the powers of a constable, an immigration officer and a customs officer – powers which were previously wielded by separate employees from the police, UK Border Agency and HM Revenue and Customs. NCA officers will work on a national basis, targeting and breaking up serious organized crime gangs.
The head of the NCA is, legally speaking, the most powerful law enforcement agent in the UK, with the authority to insist that chiefs of Britain’s domestic police forces obey his orders. In addition, the NCA’s boss reports directly to the Home Secretary, rather than to independent oversight bodies as its predecessor the Serious and Organized Crime Agency did.
According to a government fact sheet on the NCA, the agency’s employees will be able to use covert surveillance powers under the Regulation of Investigatory Powers Act 2000.
Monday, June 3, 2013 @ 05:06 PM gHale
For violating federal mine safety standards, three former officials at a London, KY, mine where a coal miner ended up killed in 2011 received fines and must spend time on probation.
U.S. District Judge Gregory van Tatenhove scheduled a hearing to determine whether to impose a fine for Manalapan Mining Co.
The men were supervisors at Manalapan’s P-1 Mine in Harlan County during a June 2011 underground collapse that killed miner David Partin.
Sentenced Wednesday were 53-year-old mine foreman Bryant Massingale of Cawood, 54-year-old mine superintendent Joseph Miniard of Smith and 47-year-old operations manager Jefferson Davis of Harlan.
Massingale and Miniard each got a fine of $3,000 and three years of probation, including some home incarceration or confinement. Davis ended up fined $5,000 and got three years of probation.
Thursday, May 5, 2011 @ 08:05 AM gHale
A nuclear plant in Northeastern England was the site of an arrest Monday after British police arrested five men on suspicion of terrorism.
The men, all in their 20s and from London, were close to the Sellafield nuclear facility after police officers from the Civil Nuclear Constabulary conducted a “stop check” on their vehicle, Cumbria Constabulary said. Cumbria Constabulary officers then arrested the men.
While parts of the world are on heightened alert to possible terror threats, there is no indication the incident relates to the killing of al Qaeda leader Osama bin Laden in Pakistan, police said.
The suspects were in police custody in Carlisle overnight and they then sent them to Manchester Tuesday morning for further interrogation, police said.
They will undergo further questioning by an anti-terror unit there, police said.
Metropolitan Police officers searched four homes in east London on Tuesday in connection with the arrests, said the police force leading the investigation.
Police held the suspects under a 2000 anti-terror law that allows police to arrest suspects without a warrant and hold them for up to 48 hours without charge.
Police closed the roads in the area briefly at the time of the arrests, Monday afternoon, authorities said.