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| 1 | Protective effect of propofol preconditioning and postconditioning against ischemic spinal cord injury显示文摘Propofol preconditioning has been shown to provide neuroprotection against spinal ischemia/reperfusion injury.In this study,spinal cord ischemia/reperfusion injury was induced by blocking the abdominal aorta in rabbits for 40minutes.Results showed that the co-application of propofol preconditioning and postconditioning regimen ameliorated pathological injury of the ischemic spinal cord and suppressed the elevation of malondialdehyde levels and increased superoxide dismutase activities in the spinal cord tissues.Co-application of propofol preconditioning and postconditioning resulted in potent protective effects against spinal cord ischemia/reperfusion injury and prolonged the spinal cord's tolerance to ischemia.This protection was associated with the anti-lipid peroxidation capacity of the spinal cord tissues. | Qijing Yu Ji Hu Jie Yang Shuzhou Yin | 2011 | Neural Regeneration Research2011，6，12： | 11 |
| 2 | Observation and modeling of NPP for Pinus elliottii plantation in subtropical China显示文摘Based on the stem analysis of 59 individuals of Pinus elliottii in combination with tree biomass models, we calculated annual biomass increment of forest plots at Qianyanzhou Ecological Station, Chinese Academy of Sciences in subtropical China. In addition, canopy layer and community NPP were calcu- lated based on 12 years’ litter fall data. NPP of the 21-year-old forest was estimated by using the BIOME BGC model; and both measured NPP and estimated NPP were compared with flux data. Community biomass was 10574 g·m-2; its distribution patterns in tree layer, shrub layer, herbaceous layer, tree root, herbaceous and shrub roots and fine roots were 7542, 480, 239, 1810, 230, 274 and 239 g·m-2, respectively. From 1999 to 2004, the average annual growth rate and litter fall were 741 g·m-2·a-1 (381.31 gC·m-2·a-1) and 849 g·m?2·a?1 (463 gC·m-2·a-1), respectively. There was a significant corre- lation between annual litter fall and annual biomass increment; and the litter fall was 1.19 times the biomass increment of living trees. From 1985 to 2005, average NPP and GPP values based on BGC modeling were 630.88 (343.31 - 906.42 gC·m-2·a-1) and 1 800 gC·m-2·a-1 (1351.62 - 2318.26 gC·m-2·a-1). Regression analysis showed a linear relationship (R2=0.48) between the measured and simulated tree layer NPP values. NPP accounted for 30.2% (25.6%-32.9%) of GPP, while NEP ac- counted for 57.5% (48.1%-66.5%) of tree-layer NPP and 41.74% (37%-52%) of stand NPP. Soil respi- ration accounted for 77.0% of measured tree NPP and 55.9% of the measured stand NPP. NEE based on eddy covariance method was 12.97% higher than the observed NEP. | MA ZeQing LIU QiJing WANG HuiMin LI XuanRan ZENG HuiQing XU WenJia | 2008 | Science China Earth Sciences2008，51，7： | 9 |
| 3 | Dendrochronology-based stand growth estimation of Larix olgensis forest in relation with climate on the eastern slope of Changbai Mountain, NE China显示文摘Changbai 山的东方斜坡与很少人的骚乱由纯落叶松森林(Larix olgensis ) 被描绘。到在这个区域的气候的树生长的反应仍然保持未知。同时,很少气候变化怎么影响能作为一个三维的树生长索引被认出的生物资源增加被知道。这研究的目的是调查气候效果在上光线并且 Changbai 的东方斜坡上的落叶松的生物资源生长山。树戒指宽度年表和吝啬的年度生物资源增长用树戒指数据被建立。我们使用了关联分析和多重回归分析从 1957 ~ 2009 探索在落叶松生长和气候的因素之间的关系。树戒指生长和吝啬的年度生物资源增长主要并且显著地是的结果表演在月之中与细微差别到上一年影响了气候的变量。温度更一致地并且强烈比是降水的被相关到年表和吝啬的年度生物资源增长。温度是在 Changbai 山上限制落叶松生长的主要因素,温暖的进行中的气候可以加速种的生长。区域的当前的看台生物资源 240.72 是 Mg 獵? | Bo LIN Qianqian XU Wenhui LIU Guochun ZHANG Qiongyao XU Qijing LIU | 2013 | Frontiers of Earth Science2013，7，4： | 5 |
| 4 | Larix olgensis growth-climate response between lower and upper elevation limits:an intensive study along the eastern slope of the Changbai Mountains,northeastern China显示文摘Larix olgensis is a dominant tree species in the forest ecosystems of the Changbai Mountains of northeast China.To assess the growth response of this species to global climate change,we developed three tree-ring width and biomass chronologies across a range of elevations in the subalpine forests on the eastern slope of the Changbai Mountains.We used dendroclimatic analyses to study key factors limiting radial growth in L.olgensis and its variation with elevation.The statistical characteristics of chronologies suggested that elevation is a determinant of tree growth patterns in the study area.Response function analysis of chronologies with climate factors indicated that climate–growth relationships changed with increasing elevation:tree growth at high elevation was strongly limited by June temperatures of the previous year,and as elevation decreases,the importance of temperature decreased;tree radial growth at mid-elevation was mainly controlled by precipitation towards the end of the growing season of the current year.Biomass chronologies reflected a stronger climatic signal than tree-ring width chronologies.Spatial correlation with gridded climate data revealed that our chronologies contained a strong regional temperature signal for northeast China.Trees growing below timberline appeared to be more sensitive to climate,thus optimal sites for examining growth trends as a function of climate variation are considered to be just below timberline.Our study objective was to provide information for more accurate prediction of the growth response of L.olgensis to future climate change on the eastern slope of the Changbai Mountains,and to provide information for future climate reconstructions using this tree species in humid and semi humid regions. | Jian Yu Qijing Liu | 2020 | Journal of Forestry Research2020，31，1： | 4 |
| 5 | Fabrication of Nanoscale Step Height Structure Using Atomic Layer Deposition Combined with Wet Etching显示文摘The current techniques used for the fabrication of nanosteps are normally done by layer growth and then ion beam thinning. There are also extra films grown on the step surfaces in order to reduce the roughness. So the whole process is time consuming. In this paper, a nanoscale step height structure is fabricated by atomic layer deposition(ALD) and wet etching techniques. According to the traceable of the step height value, the fabrication process is controllable. Because ALD technology can grow a variety of materials, aluminum oxide(Al_2O_3) is used to fabricate the nanostep. There are three steps of Al_2O_3 in this structure including 8 nm, 18 nm and 44 nm. The thickness of Al_2O_3 film and the height of the step are measured by anellipsometer. The experimental results show that the thickness of Al_2O_3 film is consistent with the height of the step. The height of the step is measured by AFM. The measurement results show that the height is related to the number of cycles of ALD and the wet etching time. The bottom and the sidewall surface roughness are related to the wet etching time. The step height is calibrated by Physikalisch-Technische Bundesanstalt(PTB) and the results were 7.5±1.5 nm, 15.5±2.0 nm and 41.8±2.1 nm, respectively. This research provides a method for the fabrication of step height at nanoscale and the nanostep fabricated is potential used for standard references. | WANG Chenying YANG Shuming JING Weixuan REN Wei LIN Qijing ZHANG Yijun JIANG Zhuangde | 2016 | Chinese Journal of Mechanical Engineering2016，29，1： | 3 |
| 6 | Effect of Anodization Parameters on Morphology and Photocatalysis Properties of TiO_2 Nanotube Arrays显示文摘Highly ordered TiO2 nanotube arrays were fabricated via electrochemical anodization of high purity Ti foil in fluoride-containing electrolyte. The effects of applied anodization potential, anodization time on the formation of TiO2 nanotube arrays and the photocatalytic degradation of methylene blue(MB) were discussed. The TiO2 nanotube arrays calcined at 500 °C for 2 h show pure anatase phase. The pore diameters of TiO 2 nanotube arrays can be adjusted from 30 to 90 nm using a different anodization voltage.Anodization time mainly influenced TiO 2 tube length, and by increasing the anodization time, the nanotube length became longer gradually. When the anodization potential was 40 V, the average growth rate of TiO 2 nanotube was about 4.17 μm/h. Both anodization potential and time had important effects on the photocatalytic efficiency. The TiO 2 nanotube arrays obtained at anodization potential of 40 V for 1 h showed the best photocatalytic degradation ratio of MB. | Lianjie Qin Qijing Chen Ruijun Lan Runqian Jiang Xiao Quan Bin Xu Feng Zhang Yongmin Jia | 2015 | Journal of Materials Science & Technology2015，31，10： | 3 |
| 7 | Comprehensive Assessment of Urbanization Coordination:A Case Study of Jiangxi Province, China显示文摘In order to make assessment on urbanization coordination, we developed a comprehensive model by integrating entropy weight method(EWM), coupling degree model(CDM), coupling coordination degree model(CCDM), multi-index grading method(MIGM) and Remote Sensing & Geographic Information System(RS & GIS) technology. Then we applied this integrated model to a case study in Jiangxi Province, China. Our study finds that: 1) EWM, CDM and CCDM can evaluate the temporal dynamic of urbanization. Urbanization process of Jiangxi Province can be divided into three periods, the stable development period(1990–2001), the accelerated development period(2002–2009) and the rapid development period(2010–2015). Coordinated development of urbanization in Jiangxi Province can be divided into two phases, an increasingly coordinated phase(1990–2003) and an increasingly incongruous phase(2003–2015). The state transition was due to low development rate of population urbanization. 2) RS & GIS technology is an effective tool for detecting urban growth. Urban construction land area of Jiangxi Province increased from 615.8 km^2 in 1990 to 2896.8 km^2 in2015, and the per capita urban construction land area(PCUCLA) reached 122.9 m^2, with the maximum value of 343 m^2 in Gongqingcheng City. 3) MIGM and RS & GIS technology can analyze spatial difference of urbanization. There is a significant spatial difference in socioeconomic development at county scale, with the maximum value six times the minimum value for both PCUCLA and per capita GDP in 2015. Population urbanization lag and excessive land use are the main reasons for uncoordinated urbanization. There were 15 counties with a lag in demographic urbanization and 33 counties where PCUCLA exceeded the national standard in 2015, among which 20 exceeded the national standard of PCUCLA by 50%(≥165 m^2). Since there are significant spatio-temporal differences in urbanization, it is necessary to carry out a comprehensive assessment to facilitate differential urbanization strategy making. | LI Shu YING Zhixia ZHANG Huan GE Gang LIU Qijing | 2019 | Chinese Geographical Science2019，29，3： | 3 |
| 8 | Systematic Full-Cycle Engineering Microbial Biofilms to Boost Electricity Production in Shewanella oneidensis显示文摘Electroactive biofilm plays a crucial rule in the electron transfer efficiency of microbial electrochemical systems(MES).However,the low ability to form biofilm and the low conductivity of the formed biofilm substantially limit the extracellular electron transfer rate of microbial cells to the electrode surfaces in MES. | Feng Li Rui Tang Baocai Zhang Chunxiao Qiao Huan Yu Qijing Liu Junqi Zhang Liang Shi Hao Song | 2023 | Research2023，，2： | 2 |
| 9 | Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid显示文摘Endophytic fungi can be beneficial to plant growth. However, the molecular mechanisms under-lying colonization of Acremonium spp. remain unclear. In this study, a novel endophytic Acremonium strain was isolated from the buds of Panax notoginseng and named Acremonium sp. D212. The Acremonium sp. D212 could colonize the roots of P. notoginseng, enhance the resistance of P. notoginseng to root rot disease, and promote root growth and saponin bio-synthesis in P. notoginseng. Acremonium sp. D212 could secrete indole-3-acetic acid (IAA) and jasmonic acid (JA), and inoculation with the fungus increased the endogenous levels of IAA and JA in P. noto-ginseng. Colonization of the Acremonium sp. D212 in the roots of the rice line Nipponbare was dependent on the concentration of methyl jasmonate (MeJA) (2–15μmol/L) and 1-naphthalenacetic acid (NAA) (10–20μmol/L). Moreover, the roots of the JA signaling-defective coi1-18 mutant were colonized by Acremonium sp. D212 to a lesser degree than those of the wild-type Nipponbare and miR393b-overexpressing lines, and the colonization was res-cued by MeJA but not by NAA. It suggests that the cross-talk between JA signaling and the auxin biosynthetic pathway plays a crucial role in the colonization of Acremonium sp. D212 in host plants. | Li Han Xuan Zhou Yiting Zhao Shusheng Zhu Lixia Wu Yunlu He Xiangrui Ping Xinqi Lu Wuying Huang Jie Qian Lina Zhang Xi Jiang Dan Zhu Chongyu Luo Saijie Li Qian Dong Qijing Fu Kaiyuan Deng Xin Wang Lei Wang Sheng Peng Jinsong Wu Weimin Li JiǐíFriml Youyong Zhu Xiahong He Yunlong Du | 2020 | Journal of Integrative Plant Biology2020，62，9： | 2 |
| 10 | Identification of secondary organic aerosols based on aerosol mass spectrometry显示文摘Secondary organic aerosol (SOA) is one of the major components of aerosols in the atmosphere and has not been well understood so far.Due to the complex chemical composition of organic aerosols,the identification of SOA has been a hotspot and difficult issue in the field of aerosol study.This study attempts to quantitatively identify SOA in winter of Shenzhen based on positive matrix factorization (PMF) analysis.Major sources were resolved and SOA was identified subsequently according to the characteristic ion fragments measured by highly time-resolved aerosol mass spectrometer measurement.It showed that in the winter of Shenzhen the average SOA concentration was 9.41±6.33 g/m 3,accounting for 39.9±21.8% of the total organic mass.Compared with primary organic aerosol (POA),the SOA concentrations had no large variation,suggestive of characteristics of regional secondary pollutants.The ratio of SOA/BC had pronounced diurnal variation,similar to that of O x (O3+NO2),indicating SOA formation was significantly controlled by activity of photochemistry in the atmosphere.The most effective period for SOA formation was from 9 am~3 pm since the SOA/BC ratio increased by 122% during this period.This study provides a new technical method and a new idea for SOA investigation. | HUANG XiaoFeng 1,ZHAO QianBiao 1,2,HE LingYan 1,HU Min 2,BIAN QiJing 3,XUE Lian 1 & ZHANG YuanHang 2 1 Key Laboratory for Urban Habitat Environmental Science and Technology School of Environment and Energy,Peking University Shenzhen Graduate School,Shenzhen 518055,China 2 State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering,Peking University,Beijing 100871,China 3 Division of Environment,Hong Kong University of Science & Technology,Hong Kong,China | 2010 | Science China Chemistry2010，53，12： | 2 |
| 11 | The Novel Spectrum Allocation Algorithm in Cognitive Radio System显示文摘In order to reduce the disturbance on an authorizing user and lower the competition between cognitive users, assure the normal communication of a cognitive radio system, reliability theory is applied to describe if a channel can be used by a cognitive user or not and the probability that the channel is continually used for a period. Three aspects including space, time domain and frequency domain are united for the research on the distribution of frequency spectrum. The simulation result shows that, in the space domain, time domain, frequency domain algorithm, the transmitted data volume and the total throughput of the system are superior to those in greedy algorithm and time domain—frequency domain algorithm, the novel algorithm is helpful to reduce the disturbance caused by a cognitive user to an authorizing user and lower the competition between cognitive users, this simulation result shows that the proposed algorithm is effective. | Xiangqian Che Yupeng Xie Ye Tian Qijing Zhang Guizhi Sun | 2017 | China Communications2017，14，3： | 2 |
| 12 | Flexible temperature sensor with high sensitivity ranging from liquid nitrogen temperature to 1200℃显示文摘Flexible temperature sensors have been extensively investigated due to their prospect of wide application in various flexible electronic products.However,most of the current flexible temperature sensors only work well in a narrow temperature range,with their application at high or low temperatures still being a big challenge.This work proposes a flexible thermocouple temperature sensor based on aerogel blanket substrate,the temperature-sensitive layer of which uses the screen-printing technology to prepare indium oxide and indium tin oxide.It has good temperature sensitivity,with the test sensitivity reaching 226.7μV℃^(−1).Most importantly,it can work in a wide temperature range,from extremely low temperatures down to liquid nitrogen temperature to high temperatures up to 1200℃,which is difficult to be achieved by other existing flexible temperature sensors.This temperature sensor has huge application potential in biomedicine,aerospace and other fields. | Zhaojun Liu Bian Tian Zhuangde Jiang Shuimin Li Jiaming Lei Zhongkai Zhang Jiangjiang Liu Peng Shi Qijing Lin | 2023 | International Journal of Extreme Manufacturing2023，5，1： | 1 |
| 13 | Low-loss hybrid plasmonic waveguide based on metal ridge and semiconductor nanowire显示文摘 | Lu Qijing Chen Daru Wu Genzhu | 2013 | Optics Communications2013，289，： | 1 |
| 14 | Microtiter plate adherence assay and receptor analogs for mycoplasma hyopneumoniae显示文摘 | Zhang Qijing Young T F Ross R F | 1994 | Infection and Immunity1994，62，5： | 1 |
| 15 | Uncertainties in above ground tree biomass estimation显示文摘Models of above-ground tree biomass have been widely used to estimate forest biomass using national forest inventory data.However,many sources of uncertainty affect above-ground biomass estimation and are challenging to assess.In this study,the uncertainties associated with the measurement error in independent variables(diameter at breast height,tree height),residual variability,variances of the parameter estimates,and the sampling variability of national inventory data are estimated for five above-ground biomass models.The results show sampling variability is the most significant source of uncertainty.The measurement error and residual variability have negligible effects on forests above-ground biomass estimations.Thus,a reduction in the uncertainty of the sampling variability has the greatest potential to decrease the overall uncertainty.The power model containing only the diameter at breast height has the smallest uncertainty.The findings of this study provide suggestions to achieve a trade-off between accuracy and cost for above-ground biomass estimation using field work. | Lihou Qin Shengwang Meng Guang Zhou Qijing Liu Zhenzhao Xu | 2021 | Journal of Forestry Research2021，32，5： | 1 |
| 16 | Glycolipid receptors for attachment of mycoplasma hyopneamoniae to porcine respiratory dciliated cells显示文摘 | Zhang Qijing Young T F Ross R F | 1994 | Infection and Immunity1994，62，10： | 1 |
| 17 | Identification and characterization of a mycoplasma hyopneumoniae adhesin 显示文摘 | Zhang Qijing Young T F Ross R F | 1995 | Infection and Immunity1995，63，3： | 1 |
| 18 | Interface capturing method of coupled level set and VOF显示文摘 | Wang Yanjin Feng Qijing Zhang Shudao | 2011 | Chinese Journal of Hydrodynamics2011，2，26： | 1 |
| 19 | A flexible and wearable NO_(2)gas detection and early warning device based on a spraying process and an interdigital electrode at room temperature显示文摘Flexible sensors used to detect NO_(2) gas generally have problems such as poor repeatability,high operating temperature,poor selectivity,and small detection range.In this work,a new spraying platform with a simple structure,low cost,and good film-forming consistency was designed and built to make a sensitive film(rGO/SnO_(2))for NO_(2) gas sensors.The relationship between the solid content of rGO and SnO_(2)nanoparticles,annealing temperature,and sensor performance was studied.The results show that the interdigital electrode-sensitive film formed by spraying 0.25 ml of a 0.4 wt%rGO/SnO_(2)mixture and annealing at 250℃exhibited the best comprehensive performance for NO_(2) detection.The sensor's response value for 100 ppm NO_(2) gas was 0.2640 at room temperature(25℃),and the response time and recovery time were 412.4 s and 587.3 s,respectively.In the range of 20-100 ppm,the relationship between the response and NO_(2) concentration was linear,and the correlation coefficient was 0.9851.In addition,a soft-monitoring node module with an overlimit warning function for NO_(2) gas was designed and manufactured based on flexible electronics.Finally,the flexible sensor and node module were embedded into woven fabric that could be used to make a mask or a watch that could detect NO_(2) gas,realizing the practical application of flexible NO_(2) gas sensors in the field of wearable electronics. | Fuzheng Zhang Qijing Lin Feng Flan Zuowei Wang Bian Tian Libo Zhao Tao Dong Zhuangde Jiang | 2022 | Microsystems & Nanoengineering2022，8，2： | 1 |
| 20 | Nonlinear optical properties of silver colloidal solution by in situ synthesis technique显示文摘 | Yan Deng Youyi Sun Pei Wang Douguo Zhang Xiaojin Jiao Hai Ming Qijing Zhang Yang Jiao Xiaoquan Sun | 2007 | Current Applied Physics2007，，： | 1 |
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