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Xiangxu Lei, Shengfu Xia, Hongkang Liu, Xiaozhen Wang, Zhenwei Li, Baomin Han, Jizhang Sang, You Zhao and Hao Luo
The Changchun Observatory of the National Astronomical Observatories, Chinese Academy of Sciences, and the Shanghai Astronomical Observatory are used to generate very short arc (VSA) angle observations of objects in low Earth orbit (LEO) and geostationar...
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Dicho Stratiev, Ivelina Shishkova, Mihail Ivanov, Rosen Dinkov, Georgi Argirov, Svetlin Vasilev and Dobromir Yordanov
A gas chromatography high temperature simulation distillation (HTSD: ASTM D 7169), and physical vacuum distillation (ASTM D 1160) were employed to characterize H-Oil vacuum distillates, straight run vacuum distillates, and hydrotreated vacuum distillates...
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Anisha Bhattacharyya, Lei Liu, Kenneth Lee and Jiahe Miao
Oily wastewater is generated from various sources within the petrochemical industry, including extraction, refining and processing, storage, and transportation. Over the years, large volumes of oily wastewater from this industry have made their way into ...
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Kai Yang, Hongyu Yang, Jianwei Zhang and Rui Kang
The pilot is the main person in charge of taxiing safety while moving on the airport surface. The visual separation and speed adjustment are directly related to safety and efficiency of airport surface operation. According to the actual taxiing procedure...
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Ljubica Dudak, Stevan Milisavljevic, Mitar Jocanovic, Ferenc Kiss, Dragoljub ?evic, Velibor Karanovic and Marko Oro?njak
On average, approximately 22 thousand tons of new lubrication oil were marketed annually in Serbia in the period 2015?2019. Less than 20% of the waste lubrication oil (WLO) generated was treated, whereas the remainder was mostly uncollected or improperly...
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