RIO DE JANEIRO， Aug. 14 (Xinhua) -- Usain Bolt qualified fastest for the men's 100m sprint final in Rio on Sunday as he continued his bid for a third straight Olympic gold medal in the blue riband event.


The 29-year-old Jamaican clocked 9.86 seconds in his semifinal， much to the delight of a capacity crowd at the Olympic Stadium.


Canada's Andre de Grasse posted the second quickest time， six hundredths of a second behind Bolt.


Justin Gatlin of the US， considered Bolt's main rival for the gold medal， was third fastest in 9.94 seconds.


Bolt is aiming to repeat his 100m， 200m and 4x100m victories at the Beijing 2008 and London 2012 Games.


He recovered from a hamstring injury last month by winning the 200m at the Anniversary Games in London.


The final was due to be held at 10.25pm on Sunday， local time.


XI'AN Vans Classic Slip On Zwart Wit Nederland , Aug. 30 (Xinhua) -- Chinese online retailer JD plans to roll out a drone that can carry packages weighing as much as 200 kilograms for long-distance deliveries.


Developed by the Beijing-based company, the new drone VT1 with a hybrid gas-electric engine is 3.4 meters long and can cover a 200-kilometer radius, according to JD.


JD said the new drone was in testing. The drone service will transport goods between distribution stations rather than to customers directly.


Xiao Jun, vice president of JD, said the VT1 could carry heavier parcels and travel over a longer time. The drones will not be affected by traffic congestion and can improve delivery efficiency and save logistic costs.


JD started conducting trial deliveries using drones in 2016. Smaller drones are being used in the city of Xi'an in Shaanxi Province and the city of Suqian in Jiangsu Province.


From June to July 31 Vans Classic Slip On Wit Kopen , the delivery drones, which can carry items weighing between 15 kg and 30 kg, have flown more than 800 times and traveled over 4,000 km in Xi'an, according to the company.


JD announced in May that it planned to invest 20.5 billion yuan (3 billion U.S. dollars) over the next five years to build a logistics hub in Xi'an.


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WASHINGTON, Feb. 11 (Xinhua) -- In her first testimony to the Congress, U.S. Federal Reserve Chair Janet Yellen reiterated central bank's plan to taper its stimulus exit despite recent weakness in the economy.


The current economic situation and outlook Goedkope Vans SK8-Hi Slim Zwart Koop , as well as the monetary policy, were the main focus of the hearing held twice a year.


Yellen told lawmakers she expected "a great deal of continuity" in the central bank's monetary policy, saying that she served on the Fed policy-setting committee as the bank formulated its current policy strategy and she strongly supported that strategy.


Yellen, 67, took the oath of office to lead the Federal Reserve System on Feb. 3 Vans Sk8-Hi Reissue Leer Zwart Wit Bestellen , succeeding Ben Bernanke, who stepped down after eight turbulent years. She was previously the Fed's vice Chair.


In the public debut in her new role, Yellen said while the economy gained steam at the end of 2013, recovery in the U.S. labor market was "far from complete," underscoring the importance of considering more than just the unemployment rate when evaluating the conditions of the labor market.


Her point of keeping an eye on wider range of labor indicators is particularly important as the unemployment rate Vans Old Skool Reptile LichtGrijs Zwart Sale , now at 6.6 percent, is near the 6.5 percent threshold the Fed once identified as the level that would need to be reached before officials would consider a hike in the interest rates.


"If coming information broadly supports the Committee's expectation of ongoing improvement in labor market conditions and inflation moving back toward its long-run objective, the Committee will likely reduce the pace of asset purchases in further measured steps at future meetings," Yellen indicated steady pullback in Fed stimulus, referring to the Federal Open Market Committee Vans Old Skool LichtGrijs Wit Outlet , which sets monetary policy.


While admitting she was "surprised" by the two recent jobs reports that showed the pace of job creation running under what she had expected, Yellen cautioned against jumping to conclusions of the longer trend. She told the Congress that the Fed needs to see a "notable change" in the economic outlook to consider pausing its withdrawal of stimulus.


The Fed trimmed its monthly purchases of Treasury and mortgage- backed securities by a total of 10 billion dollars in both December and January, citing strengthening economy and continued improvement in the labor market.


The Fed policymakers have suggested they would continue to reduce the bond buying, which now totals 65 billion dollars a month, at a similar pace at each Fed meeting and end it by the end of 2014 Dames Vans Old Skool Roze Wit Uitverkoop , provided the economy develops generally in line with expectations.


Yellen also highlighted the Fed's financial regulatory role, saying that the work of making the financial system more robust " has not yet been completed."


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