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| 1 | A survey of safety separation management and collision avoidance approaches of civil UAS operating in integration national airspace system显示文摘Recent years have witnessed a booming of the industry of civil Unmanned Aircraft System(UAS).As an emerging industry,the UAS industry has been attracting great attention from governments of all countries and the aviation industry.UAS are highly digitalized,informationized,and intelligent;therefore,their integration into the national airspace system has become an important trend in the development of civil aviation.However,the complexity of UAS operation poses great challenges to the traditional aviation regulatory system and technical means.How to prevent collisions between UASs and between UAS and manned aircraft to achieve safe and efficient operation in the integrated operating airspace has become a common challenge for industry and academia around the world.In recent years,the international community has carried out a great amount of work and experiments in the air traffic management of UAS and some of the key technologies.This paper attempts to make a review of the UAS separation management and key technologies in collision avoidance in the integrated airspace,mainly focusing on the current situation of UAS Traffic Management(UTM),safety separation standards,detection system,collision risk prediction,collision avoidance,safety risk assessment,etc.,as well as an analysis of the bottlenecks that the current researches encountered and their development trends,so as to provide some insights and references for further research in this regard.Finally,this paper makes a further summary of some of the research highlights and challenges. | Xiangmin GUAN Renli LYU Hongxia SHI Jun CHEN | 2020 | Chinese Journal of Aeronautics2020，33，11： | 10 |
| 2 | Reproductive toxicity of organic extracts from petrochemical plant effluents discharged to the Yangtze River,China显示文摘Water pollution of the Yangtze River in China became one of challenges that the government is facing today.Increasing numbers of petrochemical plants were built along the river in past decades,and numbers of organic chemicals were discharged into the river.Our goal was to establish in vitro system on rat sertoli cells,spermatogenic cells and leydig cells to investigate the reproductive toxicity potential induced by organic extracts from petrochemical effluents.Our results showed that the organic extract depressed the viability(p<0.01) and destroyed the plasma membrane integrity of sertoli cells and spermatogenic cells to a certain degree.Accordingly,proportion of early apoptotic sertoli cells and late apoptotic spermatogenic cells increased significantly.Although significant morphological changes were not detected for leydig cells,the extract was observed to inhibit their testosterone production(p<0.01).Sertoli cells and spermatogenic cells appeared to be more sensitive and maybe the main targets of the key toxins.These results suggested that the in vitro system on rat testicular cells may be useful to predicate reproductive toxicity potential of organic extracts from petrochemical effluents.More attention should be paid to the petrochemical effluents,because long-term accumulation of these organic compounds in organisms may cause spermatogenesis malfunction and testosterone reduction. | Xiaoyi Wang Wei Shi Jiang Wu Yingqun Hao Guanjiu Hu Hongling Liu Xiaodong Han Hongxia Yu | 2010 | Journal of Environmental Sciences2010，22，2： | 7 |
| 3 | Properties of Cloud and Precipitation over the Tibetan Plateau显示文摘The characteristics of seasonal precipitation over the Tibetan Plateau(TP) were investigated using TRMM(Tropical Rainfall Measuring Mission) precipitation data(3B43). Sensitive regions of summer precipitation interannual variation anomalies were investigated using EOF(empirical orthogonal function) analysis. Furthermore, the profiles of cloud water content(CWC) and precipitable water in different regions and seasons were analyzed using TRMM-3A12 data observed by the TRMM Microwave Imager. Good agreement was found between hydrometeors and precipitation over the eastern and southeastern TP, where water vapor is adequate, while the water vapor amount is not significant over the western and northern TP.Further analysis showed meridional and zonal anomalies of CWC centers in the ascending branch of the Hadley and Walker Circulation, especially over the south and east of the TP. The interannual variation of hydrometeors over the past decade showed a decrease over the southeastern and northwestern TP, along with a corresponding increase over other regions. | WANG Chenghai SHI Hongxia HU Haolin WANG Yi XI Baike | 2015 | Advances in Atmospheric Sciences2015，32，11： | 6 |
| 4 | Corrosion behavior of Al_(0.4)CoCu_(0.6)NiSi_(0.2)Ti_(0.25) high-entropy alloy coating via 3D printing laser cladding in a sulphur environment显示文摘High-entropy alloys(HEAs) are of great interest in materials science and engineering communities owing to their unique phase structure.HEAs are constructed with five or more principal alloying elements in equimolar or near-equimolar ratios.Therefore,they can derive their performance from multiple principal elements ratherthan a single element.In this work,three-dimensional printing laser cladding was applied to produce an Al_(0.4)CoCu_(0.6)NiSi_(0.2)Ti_(0.25) HEA coating.The experimental results confirmed that the laser cladding could be used to produce a thin coating of 120 μm in thickness.In the high-temperature laser cladding process,some Fe elements diffused from the substrate to the coating,forming a combination of face-centred cubic and body-centred cubic phase structures.The HEA coating metallurgically bonded well with the substrate.Owing to the increased dislocation density and number of grain boundaries,the HEA coating was harder and had a stronger hydrophobicity than X70 steel.The electrochemistry results showed that the HEA coating had better corrosion resistance than X70 steel.Aluminium oxides formed on the surface of the HEA coating had a certain protective effect.However,because of the laser cladding,the HEA coating generated cracks.In future work,the laser cladding technology will be improved and heat treatment will be implemented to prevent formation of cracks. | Hongxia Wan Dongdong Song Xiaolei Shi Yong Cai Tingting Li Changfeng Chen | 2021 | Journal of Materials Science & Technology2021，，1： | 6 |
| 5 | Progress of Chinese research in physical oceanography of the Southern Ocean显示文摘Oceanographic surveying has been one of the key missions of the Chinese National Antarctic Research Expedition since 1984. Using the field data obtained in these surveys and the results from remote sensing and numerical models, Chinese physical oceanographers have investigated the water masses, fronts and circulation patterns in the Southern Ocean. The results of nearly 30 years of research are summarized in this paper. Most oceanographic observations by Chinese researchers have been conducted in Prydz Bay and the adjacent seas. CTD (Conductivity Temperature and Depth) data, collected during the past 20 years, have been applied to study several features of the water masses in this region: The spatial variation of warm summer surface water, the northward extension of shelf water, the flow of ice shelf water from the cavity beneath the Amery Ice Shelf, the upwelling of the Circumpolar Deep Water, and the formation of the Antarctic Bottom Water. The circulation and its dynamic factors have been analyzed with dynamic heights calculated from CTD data as well as by numerical models. The structure and strength of the fronts in the southeast Indian Ocean and the Drake Passage were investigated with underway XBT/XCTD (Expendable Bathythermograph/Expendable CTD) and ADCP (Acoustic Doppler Current Profiler) data. Their interannual variations have been determined and the factors of influence, especially the atmospheric forcing and mesoscale oceanic processes, were studied using remote sensing data. The dynamic mechanism of the Antarctic Circumpolar Current (ACC) was analyzed by theoretical models. The transport and pattern of the ACC have been well reproduced by coupled sea ice-ocean models. Additional details of ACC variability were identified based on satellite altimeter data. The response of the ACC to climate change was studied using reanalysis data. Prospects for future research are presented at the end of this paper. | SHI Jiuxin DONG Zhaoqian CHEN Hongxia | 2013 | Advances in Polar Science2013，24，2： | 5 |
| 6 | Bortezomib improves progression-free survival in multiple myeloma patients overexpressing preferentially expressed antigen of melanoma显示文摘 | Qin Yazhen Lu Jin Bao Li Zhu Honghu Li Jinlan Li Lingdi Lai Yueyun Shi Hongxia Wang Yazhe Liu Yanrong Jiang Bin Huang Xiaojun | 2014 | Chinese Medical Journal2014，，9： | 4 |
| 7 | Marine hydrographic spatial-variability and its cause at the northern margin of the Amery Ice Shelf显示文摘Conductivity,temperature and depth(CTD) data collected along a zonal hydrographic section from the northern margin of the Amery Ice Shelf on 25-27 February 2008 by the 24th Chinese National Antarctic Research Expedition (CHINARE) cruise in the 2007/2008 austral summer are analyzed to study thermohaline structures.Analysis reveals warm subsurface water in a limited area around the east end of the northern margin,where the temperature,salinity and density have east-west gradients in the surface layer of the hydrographic section.The localization of the warm subsurface water and the causes of the CTD gradients in the surface layer are discussed.In addition,the results from these CTD data analyses are compared with those from the 22nd CHINARE cruise in the 2005/2006 austral summer.This comparison revealed that the thermoclines and haloclines had deepened and their strengths weakened in the 2007/2008 austral summer.The difference between the two data sets and the cause for it can be reasonably explained and attributed to the change in ocean-ice-atmosphere interactions at the northern margin of the Amery Ice Shelf. | GE RenFeng DONG ZhaoQian CHEN HongXia LIU Na SHI JiuXing PU ShuZhen | 2011 | Advances in Polar Science2011，22，2： | 3 |
| 8 | Harmonic dissipative soliton resonance pulses in a fiber ring laser at different values of anomalous dispersion显示文摘The pulse dynamics of harmonic mode-locking in a dissipative soliton resonance(DSR) region in an erbiumdoped fiber ring laser is investigated at different values of anomalous dispersion. The fiber laser is mode-locked by a nonlinear polarization rotation technique. By inserting 0–200 m anomalous dispersion single-mode fiber in the laser cavity, the cavity length is changed from 17.3 to 217.3 m, and the corresponding dispersion of the cavity ranges from -0.27 to-4.67 ps^2. The observed results show that the tuning range of repetition rate under a harmonic DSR condition is highly influenced by the cavity dispersion. Furthermore, it is found that, by automatically adjusting their harmonic orders, the lasers can work at certain values of repetition rate, which are independent of the cavity length and dispersion. The pulses at the same repetition rate in different laser configurations have similar properties, demonstrating that each achievable repetition rate represents an operation regime of harmonic DSR lasers. | YANJIA LYU HONGXIA SHI CHEN WEI HEPING LI JIANFENG LI YONG LIU | 2017 | Photonics Research2017，5，6： | 3 |
| 9 | The immunologic and hematopoietic profiles of mesenchymal stem cells derived from different sections of human umbilical cord显示文摘间充质的干细胞(MSC ) 广泛地在 allogeneic 干细胞移植被使用了。我们比较了 immunologic, MSC 的造血的特征源于整个人的脐的绳索(UC ) ,以及从 UC 的不同的节,包括羊膜的膜(AM ) ,沃顿的果冻(WJ ) ,和脐的容器(紫外) 。房间显型被流动 cytometry 检验。淋巴细胞转变测试和混合淋巴细胞反应被执行评估从 UC 导出的 MSC 的免疫调节的活动。cytokines 的 mRNA 表示被即时聚合酶链反应检测。造血的功能被文化 co MSC 学习, CD34 + 房间从绳索血孤立。我们的结果显示出包括 UC 与这四不同的节分开的那 MSC, WJ,紫外,并且 AM 有类似的生物特征。所有 MSC 有多系区别能力并且能区分进造骨细胞, adipocytes,和 chondrocytes。MSC 也以一种剂量依赖者方式禁止了 allogeneic T 房间的增长。cytokines 的相对 mRNA 表示被检验,并且结果显示出比 MSC 的有的更高的 interleukin-6 (IL6 ) , IL11,干细胞因素,和 FLT3 表示从 UC 的特定的节导出的那 UCMSC。当 co 有教养时, CD34 + 房间有高繁殖效率, MSC 源于 UC, UCMSC 在之中是最有效的喂层的不同的节。我们的学习证明 MSC 能与支持特征的类似的 immunomodulation 和造血作用从整个 UC 或 UC 的特定的节被孤立。 | Man Xu Bin Zhan Yuanlin Liu Jin Zhang Hongxia Sheng Rui Shi Li Liao Na Liu Jiangwei Hu Jun Wang Hongmei Ning Ting Liu Yi Zhang Hu Chen | 2014 | Acta Biochimica et Biophysica Sinica2014，46，12： | 3 |
| 10 | Determination of mixed-mode interfacial fracture toughness for thermal barrier coatings显示文摘In this work,a test method was developed to determine the interfacial fracture toughness of the air plasma sprayed (APS) thermal barrier coatings (TBCs) over a wide range of mode mixities.For this mixed-mode test method,the analytical expressions for the energy release rate and stress intensity factors were derived based on the energy theory and the concept of 'equivalence'.The fidelity of these expressions was affirmed by selected finite element analysis.The experimental results showed that the critical energy release rate increased with the increase of the positive mode mixity,which was mainly due to the increase in contact/friction effect and plastic work dissipation with increasing shear mode loading.Furthermore,an elliptical interfacial failure criterion in terms of the stress intensity factors was proposed.The agreement between the experimental results in the literature and those in our work indicated that our test method and the corresponding analytical solutions can well determine the interfacial fracture toughness of the TBCs over a wide range of mode mixities. | DENG HongXia SHI HuiJi YU HuiChen ZHONG Bin | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，4： | 2 |
| 11 | Release of myocardial noradrenaline during acute hibernation in the isolated rat heart显示文摘Objective: To explore the release of myocardial noradrenaline during acute hibernation. Methods: The hearts were gained from rats and set up as modified Langendorf preparations beating isometrically. They were perfused with modified Krebs-Henseleit buffer under controlled pressure. Mechanical measurements and coronary effluent were recorded simultaneously at 30 min intervals for 150 min. Lactate dehydrogenase in coronary effluent was assayed at the beginning, 60 min and 120 min low-flow ischemia. Noradrenaline in coronary effluent was determined at the beginning of low-flow and 120 min of low-flow ischemia and also in control, during hibernation and after 30 min reperfusion during stimulation, myocardial noradrenaline response on tyramine was investigated in absence or presence of desipramine after 30 min reperfusion. Results: In the control, there was nosignificant chant in noradrenaline overflow during 120 min perfusion; In the acute myocardial hibernation group, there was also nosignificant difference in noradrenaline overflow between the beginning and 120 min low-flow ischemia. The electrical field stimulation-induced overflow of noradrenaline during hibernation myocardium was significantly less than preischemia or after reperfusion, but there was nosignificant difference between preischemia and reperfusion group. Tyramine induced significant noradrenaline release in absence of desipramine after 30 min reperfusion, but this increase in noradrenaline release had nosignificant in the presence of desipramine. These studies indicated that there was not significant spontaneous noadrenaline overflow during acute myocardial hibernation in isolated rat hearts, the stimulation-induced noradrenaline overflow decreased during hibernation and restored to the level of preischemia after reperfusion, myocardial noradrenaline response to tyramine remained after 30 min reperfusion. Conclusion: Myocardial noradrenaline overflow may not contribute to the development of acute myocardial hibernation and the function of sympathetic nerve may also maintain in hibernation as myocardium does during acute myocardial hibernation, reperfusion of myocardium may contribute to restoring the function of sympathetic nerve. | Zuolin Fu Yibai Feng Hongxia Xu Jiang Xie Xinping Zhang Chunzhi Shi Xiang Gu Ming Li | 2005 | Journal of Nanjing Medical University2005，19，5： | 1 |
| 12 | Alternate watering in soil vertical profile improved water use efficiency of maize (Zea mays)显示文摘 | Kang Shaozhong Shi Wenjuan Cao Hongxia | 2002 | Field Crops Research2002，77，： | 1 |
| 13 | Influence of heattreatment on characteristic behavior of Co-based alloy hardfacingcoatings deposited by plasma transferred arc welding 显示文摘 | Deng Hongxia Shi Huiji Seiji Tsuruoka | 2011 | KeyEngineering Materials2011，，： | 1 |
| 14 | Alternate watering in soil vertical profile improved water use efficiency of maize (Zea mays) 显示文摘 | Kang Shaozhong Shi Wenjuan Cao Hongxia | 2002 | Field Crops Research2002，77，： | 1 |
| 15 | Carbon nanotube assisted synthesis of Ce02 nanotubes 显示文摘 | Zhang Dengsong Fu Hongxia Shi Liyi Fang Jianhui Li Qiang | 2007 | Journal of Solid State Chemistry2007，180，： | 1 |
| 16 | A Comparative Study About the Neuroprotective Effects of EPA-Enriched Phosphoethanolamine Plasmalogen and Phosphatidylethanolamine Against Oxidative Damage in Primary Hippocampal Neurons显示文摘s Oxidative stress is involved in the progression of neurodegenerative diseases.Previous evidences showed that plasma-logens could improve neurodegenerative diseases.In this study,we investigated the function of phosphoethanolamine plasmalogens enriched with EPA(EPA-pPE)and phosphatidylethanolamine enriched with EPA(EPA-PE)on oxidative damage prevention after hy-drogen peroxide(H2O2)and tert-butylhydroperoxide(t-BHP)challenge in primary hippocampal neurons.Results showed that neurons pretreated with EPA-pPE and EPA-PE demonstrated the ability to alleviate oxidative damage,which was proved by the in-creased cell viability.Moreover,the shape and number of neurons were more similar to those of the control group.Antioxidant acti-vity,apoptosis,as well as TrkB/ERK/CREB signaling pathway were investigated to explore the mechanisms.The results suggested that EPA-PE was superior to EPA-pPE in regulating mitochondrial apoptosis.EPA-pPE was more prominent than EPA-PE in upre-gulating TrkB/ERK/CREB signaling pathway.Phospholipids with EPA exerted neuroprotective effects via inhibiting oxidative stress,suppressing apoptosis,and regulating TrkB/ERK/CREB signaling pathway.Therefore,the results provide a scientific basis for utili-zation of phospholipids enriched with EPA on the treatment of neurodegenerative disease. | ZHU Yunfang ZHANG Tiantian DING Lin SHI Haohao XUE Changhu XIE Wancui CHE Hongxia WANG Yuming | 2021 | Journal of Ocean University of China2021，20，5： | 1 |
| 17 | Investigation of the electrochemical and electrocatalytic behavior of single-wall carbon nanotube film on a glassy carbon electrode显示文摘 | HongXia Luo ZuJin Shi NanQiang Li | 2001 | Anal Chem2001，73，： | 1 |
| 18 | ATP-regulation of antioxidant properties and phenolics in litchi fruit during browning and pathogen infection process显示文摘 | Chun Yi Yueming Jiang John Shi Hongxia Qu Sophia Xue Xuewu Duan Jingyu Shi Nagendra K. Prasad | 2009 | Food Chemistry2009，，1： | 1 |
| 19 | Effect of adenosine triphosphate on changes of fatty acids in harvested litchi fruit infected by Peronophythora litchii显示文摘 | Chun Yi Yueming Jiang John Shi Hongxia Qu Xuewu Duan Bao Yang Nagendra K. Prasad Ting Liu | 2009 | Postharvest Biology and Technology2009，，3： | 1 |
| 20 | Bioaccumulation, depuration and oxidative stress in fish Carassius auratus under phenanthrene exposure显示文摘 | Yuanyuan Sun Hongxia Yu Jingfei Zhang Ying Yin Huahong Shi Xiaorong Wang | 2005 | Chemosphere2005，，8： | 1 |
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