IntroductionThe conflict between Russia and Ukraine and Western sanctions against Russia have exacerbated the current energy shortage and promoted the sharp rise of international energy prices. From Europe, which relies ...

    At present, the "Speed Management And Alarm System" of the Lithuanian Road Authority have been installed in the A1 Vilnius Kaunas Krayipuda expressway section (49 in total). The system includes el...

BackgroundQingbaijiang District is an important industrial zone in Chengdu and Western China.The district has three landforms: flat dam, hill and low mountain, showing a trend from flat dam in the northwest to hilly and ...