XINING Justin Jackson Jersey , June 19 (Xinhua) -- Northwest China's Qinghai Province has started a seven-day program to run solely on renewable energy.
From June 17 to 23, Qinghai will use renewable energy alone, supplied by wind Jonathon Simmons Jersey , solar and hydro power stations, according to Han Ti, vice manager of the provincial grid company. The province is home to 5.8 million people.
Han said the grid would not completely shut down coal-fired power plants in the province Jonathan Isaac Jersey , because it would be too costly to do so. Rather, coal-fired electricity would be transmitted to neighboring provinces.
During the seven-day period, electricity consumption in the plateau province Jerian Grant Jersey , bordering the Tibet Autonomous Region, will be fully covered by clean energy, he said.
Located at the source of China's major rivers Jason Williams Jersey , Qinghai has strong hydro-power and solar supplies.
By May this year, the power grid of Qinghai had a total installed capacity of 23.45 million kilowatts, about 82.8 percent of which was supplied by hydro-power Grant Hill Jersey , solar and wind power.
"This is the first time in China that a province runs solely on renewable energy for a long period of time. We believe it will raise awareness on cutting emissions and promote the development of clean energy nationwide," Han said.
According to the provincial 13th Five-Year Plan, Qinghai plans to expand its solar and wind capacity to 35 million kilowatt by 2020.
By then Dwight Howard Jersey , Qinghai will be able to supply 110 billion kilowatt hours of clean electricity every year to central and eastern parts of China.
China's enthusiasm for clean energy is pushing the global transition toward a low-carbon future.
China plans to invest 2.5 trillion yuan (about 368 billion U.S. dollars) in renewable energy projects during the 2016-2020 period, creating more than 13 million jobs in the sector, according to the National Energy Administration.
Citizens participate in a bubble run in Shenyang D.J. Augustin Jersey , capital of northeast China's Liaoning Province, May 28, 2017. (XinhuaLong Lei)
In pics: outdoor cultural performance given by Ulanmuqi in N China
Water park attracts many citizens in SW China's Chongqing
Aerobatics aircraft perform at air show in C China's Henan
Galsang flowers bloom on river bank in China's Hunan
Upcoming Dragon Boat Festival marked across China
People make Zongzi in C China's Hubei for upcoming Dragon Boat Festival
China's Xiamen to hold 9th BRICS Summit
Yoga fans practise yoga on flower farmland in N China's Hebei
SAN FRANCISCO, May 19 (Xinhua) -- Researchers at Stanford University have designed a home urine test that uses a black box and a smartphone camera to help analyze a standard medical dipstick.
The dipstick test, or color-changing paper test, was invented to test blood sugar in 1956. It now involves a paper strip with 10 square pads. Dipped in a sample, each pad changes color to screen for the presence of a different disease-indicating chemical.
After waiting the appropriate amount of time, a medical professional or, increasingly an automated system, compares the pad shades to a color reference chart for results.
The test seems simple, but do-it-yourself systems on the market can be error prone, said Audrey Bowden, assistant professor of electrical engineering at Stanford. "You think it's easy -- you just dip the stick in urine and look for the color change, but there are things that can go wrong. Doctors don't end up trusting those results as accurate."
Considering the dipstick as a given, Bowden and Gennifer Smith, a PhD student in electrical engineering, designed a system to overcome three main potential errors in a home test: lighting, volume control and timing.
As a color-based test, the dipstick needs consistent lighting conditions. The same color can look different depending on its background, so Smith and Bowden created a black box that covers the dipstick. Its flat, interlocking parts make it easy to mail, store and assemble.
They tackled volume control. "If you have too little or too much urine on the dipstick, you'll get erroneous results," Smith said. To fix this, they designed a multi-layered system to load urine onto the dipstick. A dropper squeezes urine into a hole in the first layer, filling up a channel in the second layer and ten square holes in the third layer. When the third layer is inserted into the black box, a uniform volume of urine is deposited on each of the ten pads at just the right time.
Then, a smartphone is placed on top of the black box with the video camera focused on the dipstick inside the box. Custom software reads video from the smartphone and controls the timing and color analysis.
To perform the test, a user would load the urine and then push the third layer into the box. When the third layer hits the back of the box, it signals the phone to begin the video recording at the precise moment when the urine is deposited on the pads.
Timing is critical to the analysis. Pads have readout times ranging from 30 seconds to 2 minutes. Once the two minutes are up, the user can transfer the recording to a software program on their computer. For each pad, it pulls out the frames from the correct time and reads out the results.
Writing in Lab on a Chip, a journal of the Royal Society of Chemistry, the researchers said they would like to design an app that would do the analysis on the phone and then send results directly to the doctor.
Bicycle riders and vehicle drivers can avoid piggish behavior – or even worse Arron Afflalo Jersey , bicycle vs. car accidents – with Colorado roads by remembering just a few tips:
Motorists:
TAKE A BRAKE: Reduce vehicle speed when sharing the road with bicyclists.