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Geographic range size patterns across plants and animals of Xinjiang,China
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作者 LiPing Li ChunYan Zhang +15 位作者 Eimear Nic Lughadha Tarciso CCLeão Kate Hardwick YaoMin Zheng HuaWei Wan Ming Ma Nurbay Abudusalih Ying Hai Zhen Pu JiangShan Lai ZhanFeng Shen Li liu Tuo Wang YangMing Jiang HuiHui Zhao qingjie liu 《Research in Cold and Arid Regions》 CSCD 2022年第1期54-67,共14页
Patterns in species geographic range size are relatively well-known for vertebrates,but still poorly known for plants.Contrasts of these patterns between groups have rarely been investigated.With a detailed flora and ... Patterns in species geographic range size are relatively well-known for vertebrates,but still poorly known for plants.Contrasts of these patterns between groups have rarely been investigated.With a detailed flora and fauna distribution database of Xinjiang,China,we used regression methods,redundancy analysis and random forests to explore the relationship of environment and body size with the geographic range size of plants,mammals and birds in Xinjiang and contrast these patterns between plants and animals.We found positive correlations between species range size and body size.The range size of plants was more influenced by water variables,while that of mammals and birds was largely influenced by temperature variables.The productivity variable,i.e.,Enhanced Vegetation Index(EVI)was far more correlated with range size than climatic variables for both plants and animals,suggesting that vegetation productivity inferred from remote sensing data may be a good predictor of species range size for both plants and animals. 展开更多
关键词 range size body size Enhanced Vegetation Index(EVI) arid region CONSERVATION
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Inhibition of Radiation-Induced Lung Adenocarcinoma Cell Metastasis by Adenovirus of PIAS3 Overexpression Driven by Radiation-Inducible Promoter (<i>Ad-pig3RRP-PIAS3</i>)
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作者 Ling Gao Qinghua Yu +4 位作者 Fengsheng Li Jiangbin Feng Xue Lu qingjie liu Xu Su 《Journal of Cancer Therapy》 2014年第14期1362-1365,共4页
Radiotherapy is one of important approaches for pulmonary adenocarcinoma. However, many studies have shown that radiation can also enhance the ability of tumor cells metastasis, although the lung adenocarcinoma could ... Radiotherapy is one of important approaches for pulmonary adenocarcinoma. However, many studies have shown that radiation can also enhance the ability of tumor cells metastasis, although the lung adenocarcinoma could be killed. The increased metastasis induced by radiation is associated with the activation of STAT3?in lung adenocarcinoma cells. Based on the importance role of?STAT3?in cell proliferation and survival, we can construct an adenovirus vector of?PIAS3 overexpress driven by radiation-induced promoter to inhibit the activation of STAT3 specifically. In this way, when?STAT3 was activated by radiation, the expression of?PIAS3 will be increased at the same time;this lead to the inhibition of invasion and metastasis caused by?STAT3 in lung adenocarcinoma cells. These researches are expected to develop a novel target and method for radiotherapy and molecular therapy of lung adenocarcinoma. 展开更多
关键词 Radiation Adenocarcinoma Metastasis Promoter PIAS3
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The Research Progress on Assessment and Reduction of Ground-Borne Vibrations Induced by Railway Traffic
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作者 Xiaoyan Lei qingjie liu +1 位作者 Qingsong Feng Andrey P. Khomenko 《Journal of Civil Engineering and Architecture》 2010年第5期60-70,共11页
Railway induced vibrations and noises are a growing matter of environmental concern. The rapid development of transportation and increases in vehicle speeds and vehicle weights have resulted in higher vibration and no... Railway induced vibrations and noises are a growing matter of environmental concern. The rapid development of transportation and increases in vehicle speeds and vehicle weights have resulted in higher vibration and noise levels. In the meantime vibrations and noises that seem to have been tolerated in the past, are now more often considered to be a nuisance. Methodology of assessing ground-borne vibrations for railway traffic is presented based on the Federal Railway Administration (FRA) Guidance Manual-High-Speed Ground Transportation Noise and Vibration Impact Assessment. Effectiveness of wave barriers such as open trench, in-filled trench, and piers for reduction of vibrations induced by railways and the procedure for barrier selection are discussed. Finally, an example of vibration assessing of Suvarnabhumi Airport Rail Link is presented to demonstrate the methodology. 展开更多
关键词 Vibration assessing wave barrier RAILWAY ground-borne vibration.
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Learning group interaction for sports video understanding from a perspective of athlete
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作者 Rui HE Zehua FU +2 位作者 qingjie liu Yunhong WANG Xunxun CHEN 《Frontiers of Computer Science》 SCIE EI CSCD 2024年第4期175-188,共14页
Learning activities interactions between small groups is a key step in understanding team sports videos.Recent research focusing on team sports videos can be strictly regarded from the perspective of the audience rath... Learning activities interactions between small groups is a key step in understanding team sports videos.Recent research focusing on team sports videos can be strictly regarded from the perspective of the audience rather than the athlete.For team sports videos such as volleyball and basketball videos,there are plenty of intra-team and inter-team relations.In this paper,a new task named Group Scene Graph Generation is introduced to better understand intra-team relations and inter-team relations in sports videos.To tackle this problem,a novel Hierarchical Relation Network is proposed.After all players in a video are finely divided into two teams,the feature of the two teams’activities and interactions will be enhanced by Graph Convolutional Networks,which are finally recognized to generate Group Scene Graph.For evaluation,built on Volleyball dataset with additional 9660 team activity labels,a Volleyball+dataset is proposed.A baseline is set for better comparison and our experimental results demonstrate the effectiveness of our method.Moreover,the idea of our method can be directly utilized in another video-based task,Group Activity Recognition.Experiments show the priority of our method and display the link between the two tasks.Finally,from the athlete’s view,we elaborately present an interpretation that shows how to utilize Group Scene Graph to analyze teams’activities and provide professional gaming suggestions. 展开更多
关键词 group scene graph group activity recognition scene graph generation graph convolutional network sports video understanding
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Mechanisms of melatonin in anti-aging and its regulation effects in radiation-induced premature senescence 被引量:1
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作者 Liping Ma qingjie liu +2 位作者 Mei Tian Xuelei Tian Ling Gao 《Radiation Medicine and Protection》 2021年第1期33-37,共5页
Melatonin is an effective antioxidant hormone produced mainly by the pineal gland.Premature senescence refers to senescence induced by declined cell proliferation and physiological functions when cells are stimulated ... Melatonin is an effective antioxidant hormone produced mainly by the pineal gland.Premature senescence refers to senescence induced by declined cell proliferation and physiological functions when cells are stimulated by nontelomeric signals.The anti-aging effect of melatonin is exerted by upregulating the expression of silent information regulator 1/Sirtuin 1(SIRT1),which reduces oxidative stress damage,decreases p53 activation,and inhibits the NF-κB pathway.Radiation can induce premature senescence through direct or indirect oxidative stress damage.The mechanism by which melatonin regulates radiation-induced premature senescence includes the inhibition of the p53-mediated senescence pathway through elimination of reactive oxygen species or p53 deacetylation induced by upregulation of SIRT1 expression.Melatonin exhibits different regulatory effects for different cells and types of radiation. 展开更多
关键词 MELATONIN Premature senescence ANTI-AGING RADIATION P53
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Synthesis and Evaluation of Photophysical Properties of C-3 Halogenated Derivatives of 2-Phenylimidazo[1,2-a]pyridine
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作者 Hong Chen Yanyan Wang +3 位作者 qingjie liu Yanchun Guo Shuxia Cao Yufen Zhao 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2022年第19期2313-2328,共16页
A CuX-mediated regioselective halogenation reaction of 2-phenylimidazo[1,2-a]pyridine in the presence of oxygen is introduced in this paper.This reaction provides an effective method for the production of C-3 halogena... A CuX-mediated regioselective halogenation reaction of 2-phenylimidazo[1,2-a]pyridine in the presence of oxygen is introduced in this paper.This reaction provides an effective method for the production of C-3 halogenated 2-phenylimidazo[1,2-a]pyridines with a yield of up to 96%.A plausible mechanism for the formation of title compounds via 2-phenylimidazo[1,2-a]pyridine–CuX complex intermediate is proposed.The structure of representative compounds is established by the single crystal XRD method.The electronic structure,corroborated by Hirshfeld surface analysis and DFT calculations,rationalizes characters of relevant absorptions and emission as well as large Stokes shifts. 展开更多
关键词 Imidazole[1 2-a]lpyridine HALOGENATION Cuprous halide DFT calculations Photophysical properties
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Experimental study of CO_(2) storage in water-flooded oilfields
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作者 Zubo Zhang Xu Chen +4 位作者 Yuchen Qian qingjie liu Weifeng Lv Manli Luo Xiliang Fan 《Petroleum Research》 2017年第4期378-382,共5页
CO_(2) is the main source of greenhouse emission,and the environment problem caused by greenhouse effect has drawn worldwide attention.In most oilfields in China,a method of waterflooding is usually used to enhance oi... CO_(2) is the main source of greenhouse emission,and the environment problem caused by greenhouse effect has drawn worldwide attention.In most oilfields in China,a method of waterflooding is usually used to enhance oil recovery,which is favorable to carry out CO_(2) injection study.The CO_(2) injection in the water-flooded oilfields can not only store CO_(2),but also enhance the oil recovery.In this article,the coreflooding tests with refined oil were conducted to investigate CO_(2) displacement characteristic in watersaturated formation under different injection rate and water-flooded oil reservoir under different formation pressure and oil saturation,then the CO_(2) storage capacity was calculated.The testing result shows that the displacement efficiency increases with the rise of the CO_(2) injection rate,and the CO_(2) injection can enhance the oil recovery about 15%OOIP under the experimental condition.When injecting CO_(2) after the waterflooding,the CO_(2) storage capacity increases as the rise of the formation pressure.The core-flooding tests also indicate that when the initial oil saturation of reservoir prior CO_(2) injection is higher,the oil recovery will be higher when injecting the same pore volume(PV)of CO_(2),and the CO_(2) storage capacity will be larger. 展开更多
关键词 RESERVOIR SATURATION refined
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